CN111376053A - Combined machining numerical control machine tool for rice milling grinding roller straight groove and drilling - Google Patents

Abstract

The invention discloses a combined machining numerical control machine tool for rice milling emery roll straight groove and drilling, which comprises a machine body seat, a main shaft driving device, a tailstock sliding table driving device, a feeding sliding table driving device, a tool rest assembly, an up-down sliding driving device and an upright post driving device, wherein the tool rest assembly comprises a tool rest upright post, a straight groove machining device and a drilling machining device, the tool rest upright post is rotatably arranged on the feeding sliding table along an up-down axial line, and the straight groove machining device and the drilling machining device are both rotatably arranged on the tool rest upright post in an up-down sliding manner and are arranged in a staggered manner in the rotating direction of the tool rest upright post. According to the technical scheme provided by the invention, the straight groove processing device and the drilling processing device are both arranged on the tool rest stand column, the tool rest stand column can be rotated to process a straight groove and a drill hole on a workpiece through the straight groove processing device and the drilling processing device respectively, and an inclined straight groove can be processed on the workpiece by adjusting an included angle between a cutter disc of the straight groove processing device and an axis of the rotating main shaft.

Description

A numerical control machine tool for combined machining of straight grooves and drill holes for rice milling rollers

technical field

The invention relates to the technical field of processing equipment for rice milling sand rollers, in particular to a numerical control machine tool for combined processing of straight grooves and drilling holes for rice milling sand rollers.

Background technique

Rice grinding roller is the most important core component of rice or grain processing machinery and equipment in the modern grain machinery industry. In order to meet the technical requirements of industry standards, many manufacturing processes have replaced the initial manual production and must be completed by special processing machines. For example, the patent document with the publication number CN104589124B discloses a dual-purpose CNC machining machine for the outer circle and the spiral groove of the rice milling sand roller; the patent document with the publication number CN206066156U discloses a stepless rice milling sand roller machining machine; The patent document with the publication number CN208713033U discloses a machine tool for end face processing of a rice-grinding sand roller; the patent document with the publication number CN209157140U discloses a CNC machining machine for the outer circumference of the rice-grinding sand roller.

During the manufacturing process of the rice milling sand roller, please refer to FIG. 1 , there are cases where straight grooves 210 (or oblique straight grooves) and air blow holes 220 need to be processed on the rice milling sand roller 200 . In the prior art, there is no special machine tool for processing straight grooves or oblique straight grooves of rice grinding rollers. It is very inconvenient to process on other machine tools (such as spiral groove machine tools), and even cannot be processed due to structural and functional limitations. In the prior art, there is also no special machine tool for processing the air blow holes of the rice-grinding rollers. Generally, the rice-grinding rollers are drilled on an ordinary metal cutting drilling machine. The process and the metal material of the mechanical parts are different and the same, so it is difficult to meet the processing performance requirements of the rice grinding roller.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to propose a numerical control machine tool for the combined machining of straight grooves and drilling of rice grinding rollers, and to design a machine tool that can be used for straight groove machining and drilling of workpieces at the same time.

In order to achieve the above-mentioned purpose, the present invention provides a combined machining numerical control machine tool for straight groove and drilling of a rice milling sand roller, including:

The machine base is provided with a processing station, and the processing station is provided with a rotating spindle extending in the left and right directions, a tailstock slide that can slide left and right, and a feed slide that can slide back and forth. The rotating spindle is used to install a fixed workpiece, and the tailstock slide table and the feed slide table are located on the right and front of the rotating spindle, respectively;

A main shaft driving device and a tailstock, the main shaft driving device is arranged on the body base, the main shaft driving device is connected with the left end of the rotating main shaft, and is used for driving the rotating main shaft to rotate along the axis in the left and right directions, the The tailstock is mounted on the tailstock slide table corresponding to the right end of the rotating main shaft, and is used for positioning the rotating main shaft and clamping the workpiece on the rotating main shaft;

The tailstock sliding table driving device and the feeding sliding table driving device are both arranged on the body base. The tailstock sliding table driving device is used to drive the tailstock sliding table to slide left and right, and the feeding sliding table drives The device is used to drive the feeding slide table to slide back and forth;

The tool holder assembly includes a tool holder column, a straight groove processing device and a drilling processing device, the tool holder column is rotatably installed on the feed slide along an up-down axis, and the straight groove processing device and all The drilling processing devices are all slidably mounted on the tool holder column, and are arranged staggered in the rotation direction of the tool holder column;

Up and down sliding driving device and column driving device, the up and down sliding driving device is arranged on the column of the tool rest, used to drive the straight groove processing device and the drilling processing device to slide up and down, and the column driving device is arranged in The feed slide table is used to drive the tool holder column to rotate, so that the tool holder assembly has a first working state for machining straight grooves on the workpiece, and a second working state for machining oblique straight grooves on the workpiece. two working states, and a third working state for drilling holes on the workpiece;

Wherein, when the tool holder assembly is in the first working state, the straight groove machining device rotates to the machining station, and the tool disc of the straight groove machining device is parallel to the axis of the rotating spindle. When the tool holder assembly is in the second working state, the straight groove machining device is rotated to the machining station, and the cutter head and the axis of the rotating spindle are arranged at a preset angle. When the frame assembly is in the third working state, the drilling processing device is rotated to the processing station.

Optionally, it also includes a control cabinet, the control cabinet is electrically connected to the main shaft drive device, the tailstock slide drive device, the feed slide drive device, the up and down sliding drive device and the upright column A driving device, a cutter head driving mechanism of the straight groove processing device, and a drill bit driving device of the drilling processing device.

Optionally, the rotating spindle includes a machine tool spindle and a workpiece spindle, the left end of the machine tool spindle is connected to the spindle drive device, the right end of the machine tool spindle is detachably connected to the left end of the workpiece spindle, the workpiece The main shaft is provided with fixing positions for installing and fixing workpieces, and the fixing positions are provided with a plurality of left and right directions, so that a plurality of workpieces can be installed and fixed on the workpiece main shaft.

Optionally, the tool holder assembly further includes an upper and lower sliding piece, a straight groove machining support and a drilling machining support, the upper and lower sliding pieces are slidably installed on the tool holder column, the straight groove machining support and The drilling processing brackets are fixedly installed on the upper and lower sliding parts, and are arranged staggered in the rotation direction of the tool rest column, and the straight groove processing device and the drilling processing device are respectively arranged on the straight groove processing device. The slot processing bracket and the drilling processing bracket, the up and down sliding drive device is used to drive the upper and lower sliding parts to slide up and down, so as to drive the straight groove processing device and the drilling processing device simultaneously through the upper and lower sliding parts. Swipe up and down.

Optionally, the tool holder assembly further includes a ball screw extending up and down, the up and down sliding driving device is a servo motor connected to one end of the ball screw, and the up and down sliding member is mounted on the ball. lead screw nut; and/or,

Corresponding to the straight groove machining bracket, the tool rest column is provided with a first guide rail extending in the up-down direction, the straight groove machining bracket is provided with a first guide rail groove up and down, and the first guide rail is located on the first guide rail. a guide fit with the first guide rail groove in the up-down direction, and a first limit protrusion is provided at the notch of the first guide rail groove to restrict the first guide rail from disengaging from the notch the first guide rail groove; the tool rest column is provided with a second guide rail extending up and down corresponding to the drilling processing support, the drilling processing support is provided with a second guide rail groove up and down, the second guide rail The guide rail is located in the second guide rail groove, and forms a guide fit with the second guide rail groove in the up and down direction, and a second limit protrusion is arranged at the notch of the second guide rail groove for restricting the first guide rail groove. The two guide rails are separated from the second guide rail groove from the notch.

Optionally, the straight groove processing device includes a cutter head and a cutter head driving mechanism for driving the cutter head to rotate, the cutter head comprises a disc-shaped base body and a plurality of cutters arranged on the base body The plurality of cutter heads are arranged on the periphery of the base body along the circumferential direction of the base body, and both ends of each of the cutter heads in the axial direction of the cutter head protrude from the base body.

Optionally, the drilling processing device comprises a drill bit extending in an up-down direction, and a drill bit driving device for driving the drill bit to rotate; wherein, the drill bit comprises:

a straight rod, a knife groove is formed on the peripheral side of the lower end of the straight rod, and the knife groove penetrates the lower end surface of the straight rod downward;

a diamond compact, fixedly mounted at the kerf, the lower end of the diamond compact protrudes downward from the kerf and protrudes from the straight rod to form a blade for contacting the workpiece; and,

The pressing sheet is detachably installed at the kerf corresponding to the diamond composite sheet, so as to clamp and fix the diamond composite sheet through the pressing sheet and the inner wall of the kerf.

Optionally, the knife groove includes a first inner side wall, the diamond composite sheet is clamped and fixed between the first inner side wall and the lower end of the pressing sheet, and the first inner side wall is provided with a hole extending through the The via hole of the straight rod, the via hole is located above the diamond composite sheet, the upper end of the pressing sheet is provided with a threaded hole corresponding to the via hole, and the pressing sheet and the straight rod pass through the hole. It is fixed with a compression screw threadedly connected to the threaded hole through the hole.

Optionally, a first crimping table and a second crimping table are protruded from the side of the pressing sheet close to the diamond composite sheet, and the first crimping table is located at the upper end of the pressing sheet and abuts against the the first inner side wall and the second crimping stage are located at the lower end of the pressing sheet and abut against the diamond compact; and/or,

The first inner side wall is formed with a downward first limiting surface corresponding to the upper end surface of the pressing sheet, and the first limiting surface is located above the pressing sheet and abuts against the upper end surface of the pressing sheet. catch.

Optionally, the inner wall of the kerf is formed with a downward second limiting surface corresponding to the upper end surface of the diamond compact, and the second limiting surface is located above the diamond compact and is opposite to the diamond compact. the upper end face of the diamond compact abuts; and/or,

The inner wall of the knife groove is provided with a blade limit groove corresponding to the diamond composite sheet, and the diamond composite sheet is protruded with a limit boss corresponding to the blade limit groove, and the limit boss and the blade limit The grooves form a limit fit.

In the technical solution provided by the present invention, the straight groove machining device and the drilling machining device are both installed on the tool post column, and the rotating tool post column can respectively process the straight groove and the drilling hole on the workpiece through the straight groove machining device and the drilling machining device. , and, by adjusting the angle between the cutter head of the straight groove machining device and the axis of the rotating spindle, the inclined straight groove can be machined on the workpiece, thereby making a combined machining CNC machine tool for the straight groove and drilling of the rice milling roller It can be used for straight groove machining and drilling of workpieces at the same time.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

Fig. 1 is the structural representation of rice milling sand roller;

Fig. 2 is a front view of an embodiment of a numerically controlled machine tool for combined machining of a straight groove and a drill hole provided by the present invention;

Fig. 3 is the right side view of Fig. 2;

Fig. 4 is the rear view of Fig. 2;

Fig. 5 is the partial structure schematic diagram of the rotating spindle in Fig. 2;

Fig. 6 is the partial structure schematic diagram of the tailstock in Fig. 2;

Fig. 7 is the partial structure schematic diagram of the feeding slide in Fig. 2;

Fig. 8 is a partial structural schematic diagram of the tool holder column in Fig. 2;

9 is a schematic cross-sectional view of FIG. 8;

Fig. 10 is the structural representation of the cutter head in Fig. 8;

11 is a schematic cross-sectional view of FIG. 10;

Fig. 12 is the structural representation of the drill bit in Fig. 8;

Fig. 13 is the partial enlarged schematic diagram of A place in Fig. 12;

Fig. 14 is the structural representation of the straight rod in Fig. 12;

Fig. 15 is the structural representation of the tablet in Fig. 12;

FIG. 16 is a schematic structural diagram of the diamond compact in FIG. 12 .

Description of the reference numerals: a combined machining of a straight groove and a drill hole for a rice grinding roller CNC machine tool 100, a body base 1, a rotating spindle 11, a machine tool spindle 111, a workpiece spindle 112, a tailstock slide 12, and a feed slide 13 , Spindle Drive 21, Tailstock Slide Drive 22, Feed Slide Drive 23, Up and Down Slide Drive 24, Column Drive 25, Tailstock 3, Tool Post 4, Up and Down Sliders 41, Straight Groove Machining Bracket 42, first guide groove 421, first limit protrusion 422, drilling bracket 43, second guide groove 431, second limit protrusion 432, ball screw 44, first guide 45, second guide 46. Straight groove processing device 5, cutter head 51, base body 511, cutter head 512, cutter head drive mechanism 52, drilling processing device 6, drill head 61, straight rod 62, cutter groove 621, first inner side wall 622, via hole 623, the first limit surface 624, the second limit surface 625, the blade limit groove 626, the diamond composite sheet 63, the blade 631, the limit boss 632, the pressing piece 64, the threaded hole 641, the first crimping table 642 , The second crimping table 643 , the pressing screw 65 , the drill bit driving device 66 , the workpiece 200 , the straight groove 210 , and the air jet hole 220 .

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain that in a certain posture ( As shown in the accompanying drawings), the relative positional relationship, movement situation, etc. between the various components, if the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for description purposes and should not be construed as indicating or implying the same. Relative importance or implicit indication of the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme satisfying both of A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

Rice grinding roller is the most important core component of rice or grain processing machinery and equipment in the modern grain machinery industry. In order to meet the technical requirements of industry standards, many manufacturing processes have replaced the initial manual production and must be completed by special processing machines. For example, the patent document with the publication number CN104589124B discloses a dual-purpose CNC machining machine for the outer circle and the spiral groove of the rice milling sand roller; the patent document with the publication number CN206066156U discloses a stepless rice milling sand roller machining machine; The patent document with the publication number CN208713033U discloses a machine tool for end face processing of a rice-grinding sand roller; the patent document with the publication number CN209157140U discloses a CNC machining machine for the outer circumference of the rice-grinding sand roller.

During the manufacturing process of the rice milling sand roller, please refer to FIG. 1 , there are cases where straight grooves 210 (or oblique straight grooves) and air blow holes 220 need to be processed on the rice milling sand roller 200 . In the prior art, there is no special machine tool for processing straight grooves or oblique straight grooves of rice grinding rollers. It is very inconvenient to process on other machine tools (such as spiral groove machine tools), and even cannot be processed due to structural and functional limitations. In the prior art, there is also no special machine tool for processing the air blow holes of the rice-grinding rollers. Generally, the rice-grinding rollers are drilled on an ordinary metal cutting drilling machine. The process and the metal material of the mechanical parts are different and the same, so it is difficult to meet the processing performance requirements of the rice grinding roller.

In view of this, the present invention provides a numerical control machine tool for the combined machining of straight grooves and drilled holes for rice grinding rollers, which is used to process straight grooves and drill holes on workpieces such as rice grinding rollers. Figures 2 to 16 are provided by the present invention An embodiment of a numerical control machine tool for combined processing of straight grooves and drill holes for rice milling sand rollers.

Specifically, please refer to FIG. 1 to FIG. 3 , a numerical control machine tool 100 for combined machining of straight grooves and drill holes for rice milling rollers includes a body seat 1, a spindle drive device 21, a tailstock 3, a tailstock slide table drive device 22, Feeding slide drive device 23 , tool rest assembly, up and down sliding drive device 24 and column drive device 25 .

Please refer to FIG. 2 , FIG. 4 and FIG. 5 , the machine base 1 is provided with a processing station, and the processing station is provided with a rotating spindle 11 extending in the left-right direction. The rotating spindle 11 is used to install and fix the workpiece 200 , and the spindle driving device 21 The main shaft driving device 21 is connected to the left end of the rotating main shaft 11 and is used for driving the rotating main shaft 11 to rotate along the axis of the left and right directions. When the workpiece 200 is processed, the workpiece 200 needs to be installed and fixed on the rotating spindle 11, and one or more workpieces 200 can be installed on the rotating spindle 11. Specifically, in this embodiment, the rotating spindle 11 includes a machine tool spindle 111 and a workpiece spindle 112. The left end of the machine tool spindle 111 is connected to the spindle drive device 21, and the right end of the machine tool spindle 111 is detachably connected to the left end of the workpiece spindle 112. The workpiece spindle 112 is provided with a fixed position for installing and fixing the workpiece 200, and the fixed position is along the left and right sides. A plurality of workpieces 200 can be installed and fixed on the workpiece spindle 112, and workpiece spindles 112 of different lengths can be installed on the machine tool spindle 111 by corresponding to the lengths of the workpieces 200 (for example, the length of the machine tool spindle 111 is 1.5m, The spindle 111 of the machine tool can be clamped with 2 to 3 rice grinding rollers at a time, and multiple workpieces 200 can be installed on the rotating spindle 11, so that multiple workpieces 200 can be processed at the same time, which reduces the number of equipment and investment. , reduces the processing site, saves the labor cost of the operator, reduces the number of 200 round-trip transfers of the workpiece, shortens the production period of the product, saves the time, greatly reduces the labor intensity, and increases the production efficiency exponentially. The spindle driving device 21 can drive the rotating spindle 11 and the workpiece 200 on the rotating spindle 11 to rotate. The lower value of the rotational speed of the rotating spindle 11 is usually 0-200 rpm. The specific setting method of the connection may not be specially limited. Specifically, in this embodiment, the main shaft driving device 21 is a servo motor, and the motor shaft of the main shaft driving device 21 is equipped with a reducer, which is connected to the rotating main shaft 11 through a belt transmission mechanism. Left end drive connection.

Please refer to FIG. 2, FIG. 3 and FIG. 6, the processing station is provided with a tailstock slide 12 that can slide left and right, the tailstock slide 12 is located on the right side of the rotating spindle 11, and the tailstock slide drive device 22 is provided on the body On the seat 1, the tailstock slide drive device 22 is used to drive the tailstock slide 12 to slide left and right, and the tailstock 3 is installed on the tailstock slide 12 corresponding to the right end of the rotating spindle 11 for positioning and clamping the rotating spindle 11. The workpiece 200 on the spindle 11 is rotated. After the workpiece 200 is installed on the rotating spindle 11, the tailstock sliding table 12 is driven to the left through the tailstock sliding table driving device 22 to drive the tailstock 3 to the left, so that the right end of the rotating spindle 11 is rotatably sleeved on the tailstock 3 in the tailstock thimble sleeve (not shown in the figure), and clamp the workpiece 200 on the rotating spindle 11. Further, in this embodiment, the tailstock 3 further includes a thimble-type fine-tuning mechanism, and the thimble-type fine-tuning mechanism is used to fine-tune the tailstock thimble sleeve of the tailstock 3 in the left and right directions. While the tailstock slide drive device 22 can drive the tailstock slide 12 to slide left and right, the specific setting method of the drive connection between the tailstock slide drive device 22 and the tailstock slide 12 may not be specially limited. In this embodiment, the tailstock slide table 12 is installed on the ball screw extending along the left and right through the screw nut, and the tailstock slide table driving device 22 is a three-phase asynchronous motor, and is connected with one end of the ball screw through a belt transmission mechanism , to drive the ball screw to rotate, and then drive the tailstock slide 12 to slide left and right.

Please refer to FIG. 2 and FIG. 7 , the processing station is provided with a feed slide 13 that can slide left and right, the feed slide 13 is located in front of the rotating spindle 11 , and the feed slide drive device 23 is provided on the body base 1 . , the feeding slide table driving device 23 is used to drive the feeding slide table 13 to slide left and right. The feeding slide table driving device 23 can drive the feeding slide table 13 to slide left and right. The specific setting method of the driving connection between the feeding slide table driving device 23 and the feeding slide table 13 may not be specially limited. In the embodiment, the feeding slide table 13 is installed on the ball screw extending along the left and right through the screw nut, and the feeding slide table driving device 23 is a servo motor, and is connected with one end of the ball screw through a belt transmission mechanism to drive the ball screw. The ball screw rotates, thereby driving the feed slide table 13 to slide left and right.

Please refer to FIG. 2 and FIG. 8 , the tool holder assembly includes a tool holder column 4, a straight groove processing device 5 and a drilling processing device 6. The tool holder column 4 is rotatably mounted on the feed slide table 13 along an up-down axis, and The straight groove processing device 5 and the drilling processing device 6 are both mounted on the tool post column 4 so as to be able to slide up and down, and are arranged staggered in the rotation direction of the tool post column 4 , and the up and down sliding drive device 24 is arranged on the tool post column 4 . On the upper side, it is used to drive the straight groove processing device 5 and the drilling processing device 6 to slide up and down, and the column driving device 25 is provided on the feeding slide table 13 to drive the tool post column 4 to rotate (in this embodiment, the column driving device 25 is a servo motor, and is drivingly connected to the tool post column 4 through a worm gear transmission mechanism), so that the tool holder assembly has a straight groove 210 for machining the workpiece 200 (the straight groove 210 refers to the extension direction of the groove and the center of the workpiece 200. The first working state in which the lines are parallel) is used to process the oblique straight groove on the workpiece 200 (the oblique straight groove means that the extending direction of the groove is set at an angle with the center line of the workpiece 200, for example, the oblique straight groove of the rice grinding roller The second working state is generally only an oblique angle in the range of 0 to 15 degrees from the centerline of the rice grinding roller), and the third working state is for drilling holes in the workpiece 200 . When the tool holder assembly is in the first working state, the straight groove machining device 5 is rotated to the processing station, and the cutter head 51 of the straight groove machining device 5 is parallel to the axis of the rotating spindle 11. When the tool holder assembly is in the second working state, The straight groove machining device 5 is rotated to the machining station, and the cutter head 51 and the axis of the rotating spindle 11 are set at a preset angle. When the tool holder assembly is in the third working state, the drilling machining device 6 is rotated to the machining station.

In the technical solution provided by the present invention, the straight groove machining device 5 and the drilling machining device 6 are both installed on the tool post upright 4, and the rotating tool post upright 4 can pass the straight groove machining device 5 and the drilling machining device 6 on the workpiece 200 respectively. Straight grooves and drill holes are machined on the workpiece, and by adjusting the angle between the cutter head 51 of the straight groove machining device 5 and the axis of the rotating spindle 11, the inclined straight grooves can be machined on the workpiece 200, thereby making a kind of rice-grinding sand. The CNC machine tool 100 can be used for the straight groove machining and drilling of the workpiece 200 at the same time.

In this embodiment, a numerical control machine tool 100 for combined machining of straight grooves and drill holes for rice milling rollers further includes a control cabinet (not shown in the figure), which is electrically connected to the spindle drive device 21 and the tailstock slide. The driving device 22 , the feeding slide table driving device 23 , the vertical sliding driving device 24 , the column driving device 25 , the cutter head driving mechanism 52 of the straight groove machining device 5 and the drill bit driving device 66 of the drilling machining device 6 . Specifically, the main shaft drive device 21, the feed slide table drive device 23, the up and down sliding drive device 24 and the column drive device 25 are all servo motors, and the servo motors all have an encoder function. The cutter head drive mechanism 52, drill bit drive device 66 and The tailstock slide table driving device 22 is a three-phase asynchronous motor, and the control cabinet is provided with a driver device for controlling the operation of the servo motor, and an electrical device for controlling the three-phase asynchronous motor. In this way, in the whole processing process, except for the upper and lower workpieces 200, which need manual operation, the rest are processed automatically by the numerical control system.

The straight groove machining device 5 and the drilling machining device 6 are driven to slide up and down by the up and down sliding driving device 24, and the up and down sliding driving device 24 may include two driving units, so as to drive the straight groove machining device 5 and the drilling hole respectively through the two driving units. The processing device 6 slides up and down; it is also possible that the up and down sliding driving device 24 only includes one driving unit, so as to simultaneously drive the straight groove processing device 5 and the drilling processing device 6 to slide up and down through one driving unit. For details, please refer to FIG. 8 and FIG. 9. In this embodiment, the tool holder assembly also includes an upper and lower sliding member 41, a straight groove processing bracket 42 and a drilling processing bracket 43. The upper and lower sliding members 41 are slidably installed on the tool holder column 4, and the straight groove processing bracket 42 and the drilling processing bracket 43 are fixedly installed on the upper and lower sliding members 41, and are arranged staggered in the rotation direction of the tool post column 4, and the straight groove processing device 5 and the drilling processing device 6 are respectively arranged on the straight groove processing brackets 42 and 6. The drilling processing bracket 43 and the vertical sliding driving device 24 are used to drive the vertical sliding member 41 to slide up and down, so as to simultaneously drive the straight groove processing device 5 and the drilling processing device 6 to slide up and down through the vertical sliding member 41 . In this way, the upper and lower sliding members 41 can be driven up and down by a driving unit, so as to drive the straight groove processing device 5 and the drilling processing device 6 to slide up and down respectively through the straight groove processing bracket 42 and the drilling processing bracket 43, so as to realize the straight groove processing and drilling processing. Vertical feed and retraction during the process.

Further, please refer to FIG. 8 and FIG. 9 , in this embodiment, the tool holder assembly further includes a ball screw 44 extending up and down, and the up and down sliding drive device 24 is a servo motor connected to one end of the ball screw 44, which slides up and down. The piece 41 is a screw nut mounted on the ball screw 44 . Specifically, the upper and lower ends of the ball screw 44 are respectively installed on the upper and lower ends of the tool post column 4 through the bearing and the bearing seat, and the middle of the ball screw 44 is a screw nut matched with it. The slide drive device 24 is connected to the ball screw 44 through a reducer and a coupling.

Please refer to FIG. 8 and FIG. 9 , in this embodiment, the tool holder column 4 is provided with a first guide rail 45 extending in the up and down direction corresponding to the straight groove machining bracket 42 , and the straight groove machining bracket 42 is provided with a first guide rail groove up and down. 421, the first guide rail 45 is located in the first guide rail groove 421, and forms a guide fit with the first guide rail groove 421 in the up and down direction. The first guide rail 45 is separated from the first guide rail groove 421 from the notch; the tool rest column 4 is provided with a second guide rail 46 extending up and down corresponding to the drilling processing bracket 43, and the drilling processing bracket 43 is provided with a second guide rail up and down. The groove 431 and the second guide rail 46 are located in the second guide rail groove 431, and form a guide fit with the second guide rail groove 431 in the up and down direction. The second guide rail 46 is restricted from disengaging from the second guide rail groove 431 from the notch. Through the arrangement of the first guide rail 45 and the first guide rail groove 421, and the second guide rail 46 and the second guide rail groove 431, the vertical sliding guide of the straight groove processing device 5 and the drilling processing device 6 can be realized.

The straight groove processing device 5 is used to process a straight groove or an inclined straight groove on the workpiece 200. Please refer to FIG. 8. In this embodiment, the straight groove processing device 5 includes a motor, a belt transmission device, a cutter head shaft seat and a cutter head 51. The motor starts to process the straight groove 210 of the workpiece 200 through the high-speed rotation of the cutter head 51; if the inclined straight groove is to be machined, it is only necessary to drive the tool post column 4 through the column driving device 25 to rotate a preset angle first, that is, the cutter head 51 and the workpiece The 200 centerline forms an included angle.

Referring to FIGS. 10 and 11 , in this embodiment, the straight groove machining device 5 includes a cutter head 51 and a cutter head driving mechanism 52 for driving the cutter head 51 to rotate. The cutter head 51 includes a disc-shaped base body 511 , and A plurality of cutter heads 512 provided on the base body 511 (the cutter head 512 can be fixed on the base body 511 by welding or the like), and the plurality of cutter heads 512 are arranged on the periphery of the base body 511 along the circumferential direction of the base body 511. Both ends of the disk 51 in the axial direction protrude from the base body 511 (for example, the length of the cutter head 512 is 60 mm, the width of the base body 511 is 40 mm, and the two ends of the cutter head 512 are respectively vacated by 10 mm). In this way, when machining straight grooves or oblique straight grooves, the machining characteristics will not be affected, and the base body 511 will not be worn and damaged, so that the base body 511 can be reused, and the front and back sides of the cutter head 51 can be used.

The workpiece 200 is drilled through the drilling processing device 6. The drilling processing device 6 includes a drilling motor, a drilling tool support frame, a drill rod seat, a drill rod, a drill clamp and a drill bit 61. The drill rod is installed on the workpiece 200 through a bearing and an end cover. In the drill rod seat, the drilling motor is connected with the drill rod through a coupling, and the drilling motor is fixed on the drill rod seat. A simple drill clamp is installed at the lower end of the drill pipe through the cooperation of the Morse No. 2 taper hole, and a drill bit 61 is installed in the drill clamp. When the straight groove processing is completed, the tool post column 4 is driven to rotate by the column driving device 25, so that the drill bit 61 is facing the workpiece 200, that is, the center line of the rotating spindle 11 is rotated, the drilling motor is started, and the up and down sliding driving device 24 drives the drill downward. Hole processing device 6, can complete the drilling processing

Referring to FIGS. 12 to 14 , in this embodiment, the drilling processing device 6 includes a drill bit 61 extending up and down, and a drill bit driving device 66 for driving the drill bit 61 to rotate; wherein, the drill bit 61 includes a straight rod 62 , The diamond composite sheet 63 and the pressing sheet 64, the peripheral side of the lower end of the straight rod 62 is provided with a knife groove 621, and the knife groove 621 penetrates the lower end face of the straight rod 62 downward, and the diamond composite sheet 63 is fixedly installed at the knife groove 621. The lower end of the composite sheet 63 protrudes downward from the knife groove 621 and protrudes from the straight rod 62 to form a cutting edge 631 for contacting the workpiece 200 , and the pressing sheet 64 is detachably installed at the knife groove 621 corresponding to the diamond composite sheet 63 to The diamond compact 63 is clamped and fixed by the pressing piece 64 and the inner wall of the knife groove 621 . The drill bit 61 uses the diamond composite sheet 63 as a blade. Because the diamond composite sheet 63 has high hardness, wear resistance and strong impact toughness, the drill bit 61 has high hardness, high wear resistance and high machinability. , the advantages of high efficiency. In addition, since the diamond composite sheet 63 is clamped and fixed on the straight rod 62 by the detachable pressing sheet 64, after the diamond composite sheet 63 is worn, the diamond composite sheet 63 can be disassembled for replacement without replacing the entire drill bit 61, thereby reducing the cost of drilling processing.

The drill bit 61 can be connected to the drill bit driving device 66 through the upper end of the straight rod 62. When the drill bit driving device 66 drives the drill bit 61 to rotate, since the cutting edge 631 of the diamond compact 63 protrudes downward from the straight rod 62, the cutting edge 631 of the diamond compact 63 The workpiece 200 may be contacted, thereby drilling the workpiece 200 . The shape of the cutting edge 631 of the diamond composite sheet 63 can be set according to the actual situation. For details, please refer to FIG. 12 and FIG. 16 . In this embodiment, the cutting edge 631 of the diamond composite sheet 63 is a chamfered cutting edge. The sheet 63 is provided as a chamfered edge, which facilitates drilling a round hole in the workpiece 200 .

Similarly, the thickness of the diamond composite sheet 63 can also be set according to the actual situation. Specifically, in this embodiment, the diamond thickness of the diamond composite sheet 63 is 1 mm-1.5 mm.

The diamond composite sheet 63 is installed on the straight rod 62, and one or more diamond composite sheets 63 can be installed on the straight rod 62. It can be understood that when a plurality of knife grooves 621 are arranged along the circumferential direction of the straight rod 62, and each When the diamond composite sheet 63 and the pressing sheet 64 are correspondingly installed at one of the knife grooves 621 , the wear of a single diamond composite sheet 63 can be reduced, and the service life of the diamond composite sheet 63 can be prolonged. Specifically, please refer to FIG. 12 , in this embodiment, two diamond composite sheets 63 are mounted on the straight rod 62 .

The diamond compact 63 is installed at the kerf 621 on the straight rod 62. The shape of the kerf 621 may not be particularly limited. The cross-section of the kerf 621 may be a square or a triangle. For example, in this embodiment, the knife The cross section of the groove 621 is a right-angled triangle. Specifically, please refer to FIG. 12 to FIG. 14 , in this embodiment, the kerf 621 includes a first inner side wall 622 , and the diamond compact 63 is clamped and fixed between the first inner side wall 622 and the lower end of the pressing sheet 64 . An inner side wall 622 is provided with a via hole 623 penetrating the straight rod 62 , the via hole 623 is located above the diamond composite sheet 63 , a threaded hole 641 is formed on the upper end of the pressing sheet 64 corresponding to the through hole 623 , and the space between the pressing sheet 64 and the straight rod 62 is It is fixed by the pressing screw 65 which passes through the through hole 623 and is threadedly connected with the threaded hole 641 (refer to FIG. 13 and FIG. 14 , in this embodiment, the through hole 623 is a countersunk hole, so that the tail of the pressing screw 65 is countersunk. into the through hole 623, thereby preventing the tail of the compression screw 65 from protruding from the peripheral side surface of the straight rod 62). The pressing piece 64 is installed by pressing the screw 65 , so that not only is the disassembly and assembly of the pressing piece 64 easier, but also the pressing force of the pressing piece 64 on the diamond compact 63 is relatively large.

Further, please refer to FIG. 13 and FIG. 15 , in this embodiment, a first crimping table 642 and a second crimping table 643 are protruded from the side of the pressing sheet 64 close to the diamond compact 63 , and the first crimping table 642 is located at The upper end of the pressing piece 64 is in contact with the first inner side wall 622 , and the second pressing table 643 is located at the lower end of the pressing piece 64 and abuts against the diamond compact 63 . By arranging the first crimping stage 642 and the second crimping stage 643 , both ends of the pressing sheet 64 are advantageously abutted against the diamond composite sheet 63 and the straight rod 62 respectively, thereby pressing the diamond composite sheet 63 .

Referring to FIGS. 13 to 15 , in this embodiment, a first limiting surface 624 facing downward is formed on the first inner side wall 622 corresponding to the upper end surface of the pressing piece 64 , and the first limiting surface 624 is located above the pressing piece 64 . , and is in contact with the upper end surface of the pressing piece 64 . The pressing piece 64 can be positioned upward through the first limiting surface 624 , and the installation and positioning between the pressing piece 64 and the straight rod 62 can be realized.

Referring to FIGS. 13 to 16 , in this embodiment, a second limiting surface 625 facing downward is formed on the inner wall of the kerf 621 corresponding to the upper end surface of the diamond compact 63 , and the second limiting surface 625 is located on the diamond compact 63 . above, and is in contact with the upper end surface of the diamond compact 63 . The pressing piece 64 can be positioned upward through the second limiting surface 625 to avoid loosening of the diamond compact 63 when the drill bit 61 is working.

Please refer to FIG. 13 , FIG. 14 and FIG. 16 , in this embodiment, the inner wall of the kerf 621 is provided with a blade limiting groove 626 corresponding to the diamond compact 63 , and the diamond compact 63 is protruded with a limiting protrusion corresponding to the blade limiting groove 626 The platform 632, the limiting boss 632 and the blade limiting groove 626 form a limiting fit. The installation and positioning of the diamond compact 63 can be realized by the arrangement of the limiting boss 632 and the insert limiting groove 626 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the conception of the present invention, the equivalent structural transformations made by the contents of the description and accompanying drawings of the present invention, or directly/indirectly applied in Other related technical fields are included within the scope of patent protection of the present invention.

Claims (10)

1. a combined machining CNC machine tool (100) of a straight groove of a rice milling sand roller and a drilled hole, is characterized in that, comprising: A body seat (1), the body seat (1) is provided with a processing station, and the processing station is provided with a rotating spindle (11) extending in the left and right directions, and a tailstock slide (12) capable of sliding left and right , and a feed slide (13) that can slide left and right, the rotating spindle (11) is used to install a fixed workpiece (200), the tailstock slide (12) and the feed slide (13) are respectively Located on the right and front of the rotating spindle (11); A spindle drive device (21) and a tailstock (3), the spindle drive device (21) is provided on the body seat (1), the spindle drive device (21) and the left end of the rotating spindle (11) connected for driving the rotating main shaft (11) to rotate along the left and right axis, and the tailstock (3) corresponding to the right end of the rotating main shaft (11) is mounted on the tailstock sliding table (12) for use in positioning the rotating spindle (11), and clamping the workpiece (200) on the rotating spindle (11); A tailstock sliding table driving device (22) and a feeding sliding table driving device (23) are both arranged on the body seat (1), and the tailstock sliding table driving device (22) is used to drive the tailstock The sliding table (12) slides left and right, and the feeding sliding table driving device (23) is used to drive the feeding sliding table (13) to slide left and right; The tool holder assembly includes a tool holder column (4), a straight groove processing device (5) and a drilling processing device (6), wherein the tool holder column (4) is rotatably mounted on the feeder along an up-down axis. The sliding table (13), the straight groove processing device (5) and the drilling processing device (6) are all mounted on the tool rest column (4) so as to be able to slide up and down, and are installed on the tool rest The rotation direction of the column (4) is staggered; An up-and-down sliding drive device (24) and a column drive device (25), the up-and-down sliding drive device (24) is provided on the tool post column (4), and is used for driving the straight groove processing device (5) and all the The drilling processing device (6) slides up and down, and the column driving device (25) is arranged on the feeding slide table (13) to drive the tool holder column (4) to rotate, so that the tool holder can rotate. The assembly has a first working state for machining straight grooves in the workpiece (200), a second working state for machining the inclined straight grooves in the workpiece (200), and a first working state for drilling holes in the workpiece (200) three working conditions; Wherein, when the tool holder assembly is in the first working state, the straight groove machining device (5) is rotated to the machining station, and the cutter head (51) of the straight groove machining device (5) is connected to the The axes of the rotating main shaft (11) are parallel, and when the tool holder assembly is in the second working state, the straight groove machining device (5) is rotated to the machining station, and the cutter head (51) It is set at a preset angle with the axis of the rotating main shaft (11), and when the tool holder assembly is in the third working state, the drilling processing device (6) is rotated to the processing station. 2. The numerical control machine tool (100) for combined machining of straight grooves and drillings for rice milling rollers as claimed in claim 1, characterized in that, further comprising a control cabinet, wherein the control cabinet is electrically connected to the spindle drive device (21), the tailstock slide drive device (22), the feed slide drive device (23), the up and down slide drive device (24), the column drive device (25), the straight The cutter head driving mechanism (52) of the groove processing device (5) and the drill bit driving device (66) of the drilling processing device (6). 3. The combined machining numerical control machine tool (100) of a kind of rice milling roller straight groove and drilling as claimed in claim 1, it is characterized in that, described rotating main shaft (11) comprises machine tool main shaft (111) and workpiece main shaft ( 112), the left end of the machine tool spindle (111) is connected to the spindle drive device (21), the right end of the machine tool spindle (111) is detachably connected to the left end of the workpiece spindle (112), the workpiece The main shaft (112) is provided with fixed positions for installing and fixing the workpiece (200), and a plurality of the fixed positions are arranged along the left and right directions, so that the workpiece main shaft (112) can be mounted and fixed on a plurality of workpieces (200). . 4. The numerical control machine tool (100) for combined machining of a straight groove and a drilled hole for a rice milling roller according to claim 1, wherein the tool holder assembly further comprises an upper and lower sliding member (41), a straight groove machining A bracket (42) and a drilling processing bracket (43), the upper and lower sliding members (41) are slidably mounted on the tool post column (4), the straight groove processing bracket (42) and the drill The hole processing brackets (43) are fixedly installed on the upper and lower sliding members (41), and are arranged staggered in the rotation direction of the tool rest column (4). The straight groove processing device (5) and the drill The hole processing device (6) is respectively arranged on the straight groove processing bracket (42) and the drilling processing bracket (43), and the up-down sliding driving device (24) is used for driving the up-down sliding member (41) up and down sliding, so as to simultaneously drive the straight groove processing device (5) and the drilling processing device (6) to slide up and down through the upper and lower sliding members (41). 5. The numerical control machine tool (100) for combined machining of straight grooves and drilled holes for rice milling rollers as claimed in claim 4, wherein the tool holder assembly further comprises a ball screw (44) extending up and down , the up and down sliding driving device (24) is a servo motor connected with one end of the ball screw (44), and the up and down sliding member (41) is a screw nut mounted on the ball screw (44) ;and / or, The tool rest column (4) is provided with a first guide rail (45) extending in the up and down direction corresponding to the straight groove machining bracket (42), and the straight groove machining bracket (42) is provided with a first guide rail groove up and down. (421), the first guide rail (45) is located in the first guide rail groove (421), and forms a guide fit with the first guide rail groove (421) in the up-down direction, the first guide rail groove (421) ) is provided with a first limiting protrusion (422) for restricting the first guide rail (45) to escape from the first guide rail groove (421) from the notch; the tool holder column (4) ) corresponding to the drilling bracket (43) is provided with a second guide rail (46) extending in the up and down direction, the drilling bracket (43) is provided with a second guide groove (431) up and down, the The two guide rails (46) are located in the second guide rail groove (431), and form a guide fit with the second guide rail groove (431) in the up-down direction. The notch of the second guide rail groove (431) is provided with The second limiting convex portion (432) is used for restricting the second guide rail (46) to escape from the second guide rail groove (431) from the notch. 6. The numerical control machine tool (100) for combined machining of straight grooves and drilling of a rice milling roller according to claim 1, wherein the straight groove machining device (5) comprises a cutter head (51), and A cutter head driving mechanism (52) for driving the cutter head (51) to rotate, the cutter head (51) comprising a disc-shaped base body (511) and a plurality of knives provided on the base body (511) A head (512), the plurality of cutter heads (512) are arranged on the periphery of the base body (511) along the circumferential direction of the base body (511), and each of the cutter heads (512) is located on the cutter head (51) Both ends in the axial direction of the base body protrude from the base body (511). 7. The combination machining numerical control machine tool (100) of a kind of straight groove of rice milling roller and drilling as claimed in claim 1, is characterized in that, described drilling processing device (6) comprises the drill bit (6) extending along the up-down direction. 61), and a drill bit driving device (66) for driving the drill bit (61) to rotate; wherein the drill bit (61) comprises: A straight rod (62), a knife groove (621) is formed on the peripheral side surface of the lower end of the straight rod (62), and the knife groove (621) penetrates the lower end surface of the straight rod (62) downward; A diamond compact (63) is fixedly installed at the knife groove (621), the lower end of the diamond compact (63) protrudes from the knife groove (621) downward and protrudes from the straight rod (62) , to form a cutting edge (631) for contact with the workpiece (200); and, A pressing sheet (64), corresponding to the diamond composite sheet (63), is detachably installed at the knife groove (621), so as to be clamped by the pressing sheet (64) and the inner wall of the knife groove (621) Fix the diamond compact (63). 8. The numerical control machine tool (100) for combined machining of straight grooves and drilled holes for rice milling rollers according to claim 7, wherein the knife groove (621) comprises a first inner side wall (622), and the The diamond composite sheet (63) is clamped and fixed between the first inner side wall (622) and the lower end of the pressing sheet (64), and the first inner side wall (622) is provided with a straight rod ( 62) via hole (623), the via hole (623) is located above the diamond composite sheet (63), and the upper end of the pressing sheet (64) is provided with a threaded hole (623) corresponding to the via hole (623). 641), the pressing piece (64) and the straight rod (62) are fixed by a pressing screw (65) that passes through the through hole (623) and is threadedly connected to the threaded hole (641). 9. The numerical control machine tool (100) for combined machining of straight grooves and drilled holes for rice milling rollers according to claim 8, wherein the pressing sheet (64) is close to the edge of the diamond composite sheet (63). A first crimping table (642) and a second crimping table (643) are protruded from one side, and the first crimping table (642) is located at the upper end of the pressing piece (64) and abuts against the first crimping table (642). an inner side wall (622), the second crimping table (643) is located at the lower end of the pressing sheet (64) and abuts against the diamond compact (63); and/or, The first inner side wall (622) is formed with a downward first limiting surface (624) corresponding to the upper end surface of the pressing sheet (64), and the first limiting surface (624) is located on the pressing sheet (624). 64), and abuts the upper end surface of the pressing piece (64). 10. The numerical control machine tool (100) for combined machining of straight grooves and drillings for rice milling rollers according to claim 7, wherein the inner wall of the knife groove (621) corresponds to the diamond composite sheet (63). ) is formed with a downward second limiting surface (625), the second limiting surface (625) is located above the diamond compact (63), and is connected with the diamond compact (63) the upper end face of the abutment; and/or, A blade limit groove (626) is formed on the inner wall of the knife groove (621) corresponding to the diamond composite sheet (63), and the diamond composite sheet (63) is protruded with a limit position corresponding to the blade limit groove (626). A boss (632), the limiting boss (632) forms a limiting fit with the blade limiting groove (626).

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