CN205817402U - Numerical control drilling attacks center machine tool - Google Patents

Abstract

The utility model relates to the field of mechanical processing equipment, and provides a CNC drilling and tapping center machine tool, including a machine base, a column, a workbench and a synchronous tool change mechanism with double tool magazines. There are two groups of tool clamping components on the body. The tool clamping components include the main shaft, the pressing rod and the ejector rod. There are a set of tool magazine components on both sides of the box. The tool magazine components include tool storage, ejector rod and tool changing arm. . When changing the tool, the box moves to the tool changing position, the top tool bar and the ejector bar are offset, the top tool bar presses down on the tool bar, and the tool bar moves to release the tool from the spindle. At this time, the tool change arm takes the tool out of the spindle. Next, take out different tools from the tool storage and load them into the main shaft to realize the automatic tool change operation. Since the two groups of clamping tool assemblies are lifted and lowered at the same time, the tool change operation is carried out at the same time, and the two sets of tool clamping components can be used to process the two parts at the same time, so the above-mentioned CNC drilling and tapping center machine tool realizes simultaneous processing of two parts and automatic tool change. High production efficiency and low cost.

Description

CNC drilling center machine tool

technical field

The utility model belongs to the technical field of mechanical processing equipment, in particular to a numerically controlled drilling and tapping center machine tool.

Background technique

In the machining machine tool industry, there are two main methods of processing parts on existing drilling and tapping center machine tools. One is to process parts with a single-spindle and single-tool magazine structure, which can automatically switch different tools in the tool magazine. To carry out different processing procedures on the same part, but it cannot process multiple parts at the same time; the other is to improve the structure of the headstock on the basis of the single-spindle and single-tool magazine structure, so that it can be loaded with multiple In this way, multiple spindles can be used to process multiple parts at the same time, but it cannot realize automatic tool change operations for each spindle. Therefore, the existing drilling and tapping center machine tool still has such problems in the processing method of parts: its production efficiency is low and the cost is high.

Utility model content

The purpose of the utility model is to provide a numerically controlled drilling and tapping center machine tool, aiming at solving the problems of low production efficiency and high cost existing in the existing drilling and tapping center machine tools.

In order to solve the above-mentioned technical problems, the utility model provides a CNC drilling and tapping center machine tool, including a machine base, a column is arranged on the machine base, and a workbench which is arranged on one side of the column and is used for loading workpieces, on which the column A synchronous tool change mechanism with double tool magazines is provided, and the synchronous tool change mechanism with double tool magazines includes a box body slidingly connected with the column and a drive control assembly for driving the box body to move up and down along the column. There are two sets of tool clamping assemblies on the box, and each set of tool clamping components includes a main shaft for clamping the tool, a tool press rod connected with the main shaft and used to drive the main shaft to release or clamp the tool and the top knife bar connected with the press knife bar and used to drive the press knife bar to move, and the two sides of the box body are respectively provided with a set of knife magazine components fixed on the column, each set of knife The magazine assembly includes a storage tool for storing a variety of different tools, a push rod fixed on the storage tool, and a push rod arranged below the push rod for placing the tool between the storage tool and the main shaft. The tool changing arm can be replaced between times, and the ejector bar can be offset against the ejector rod as the box rises.

Further, the box body is provided with a mounting groove, the bottom of the mounting groove is provided with a mounting hole, the main shaft is mounted in the mounting hole, the lower end of the main shaft is exposed outside the mounting hole, and the The upper end of the main shaft extends in the installation groove, the top knife rod and the pressure knife rod are arranged in the installation groove, the pressure knife rod is pivotally connected with the upper end of the main shaft, and the pressure knife rod One end is slidingly connected with the installation groove, and the other end is against the lower end of the top tool bar.

Further, the main shaft includes a shaft core cylinder, an outer cylinder slidingly sleeved on the outside of the shaft core cylinder, and two clamping blocks arranged at the lower end of the shaft core cylinder and used for clamping tools. The inner wall is provided with two opposite inner grooves extending from top to bottom. The depth of the inner grooves gradually becomes deeper from top to bottom. The knife rod is pivotally connected with the upper end of the shaft core cylinder.

Further, the box body is provided with a mounting block, and a rotating shaft is pivotally connected to the mounting block, and the rotating shaft is provided with a first cam and a second cam arranged at intervals along its circumference, and the top knife bar can be As the box rises, it abuts against the first cam, and the second cam can abut against the push rod as the box rises.

Further, a groove is opened on the mounting block, one end of the rotating shaft is pivotally connected to the side wall of the groove, and the other end passes through the side wall of the groove and is exposed to the mounting block, the first A cam is arranged in the groove, the second cam is arranged on the exposed end of the rotating shaft, and the bottom of the groove is provided with a through hole for the top knife rod to pass through.

Further, the exposed end of the rotating shaft is covered with a limiting torsion spring for limiting the rotation range of the rotating shaft, one end of the limiting torsion spring is connected to the mounting block, and the other end is connected to the second cam.

Further, the workbench includes a first slide rail, a second slide rail provided on the first slide rail and capable of sliding along the extending direction of the first slide rail, and a second slide rail provided on the second slide rail. and a bearing plate that can slide along the extending direction of the second slide rail.

Further, the two ends of the tool changing arm are respectively provided with clamping positions for clamping the tool, and the tool changing arm is rotatably connected with the tool storage member, and the two tool clamping positions are relative to the tool changing arm and the tool storage. The connection points of the knife storage parts are symmetrical.

Further, one end of the knife pressing rod forms two clamping parts, and the two clamping parts are respectively pivotally connected to the upper end of the main shaft through a pivot shaft, and the clamping parts are slidably connected to the installation groove.

Further, a return spring is provided on the knife pressing rod, one end of the returning spring is connected to the knife pressing rod, and the other end is connected to the box.

Beneficial effects of the numerical control drilling and tapping center machine tool provided by the utility model:

The above-mentioned CNC drilling and tapping center machine tool is used to process the parts. When it is necessary to change the tool on the main shaft, under the drive of the drive control component, the box moves up and down on the column, and the tool clamping component will move up and down with the box. Movement, when the box moves to the tool change position, the top knife rod will be offset against the fixed ejector rod due to the upward movement, the top knife rod will stop the upward movement and press down on the knife rod, and the pressure knife rod will move to drive the spindle Loosen the tool. At this time, the tool changing arm will remove the loosened tool from the main shaft, and take out a different tool from the storage tool, and put the tool into the main shaft. Therefore, the above-mentioned CNC drilling and tapping center machine tool realizes The operation of automatically changing the tool on the main shaft is realized, and because the two sets of tool clamping assemblies move up and down with the box at the same time, the tool changing operation is carried out at the same time; The tools on the two spindles machine the two parts simultaneously. To sum up, since the above-mentioned CNC drilling and tapping center machine tool adopts two sets of tool holder components and two sets of tool magazine components, it can realize synchronous processing of two parts, and synchronous automatic replacement of the tools on the two spindles. Therefore, compared As far as the prior art is concerned, it overcomes the problems of low production efficiency and high cost in the prior art due to the inability to have both automatic tool change and simultaneous processing of multiple parts.

Description of drawings

Fig. 1 is the structural representation of the CNC drilling and tapping center machine tool provided by the embodiment of the present invention;

Fig. 2 is a schematic structural view of the double tool magazine synchronous tool change mechanism of the CNC drilling and tapping center machine tool provided by the embodiment of the utility model;

Fig. 3 is a schematic structural view of the clamping tool assembly of the CNC drilling and tapping center machine tool provided by the embodiment of the present invention;

Fig. 4 is an enlarged schematic diagram of the double tool magazine synchronous tool change mechanism at circle A provided in Fig. 2;

Fig. 5 is another structural schematic diagram of the CNC drilling and tapping center machine tool provided by the embodiment of the present invention;

Fig. 6 is an enlarged schematic diagram of the CNC drilling and tapping center machine tool provided in Fig. 5 at the circle B;

FIG. 7 is an enlarged schematic diagram at circle C of the synchronous tool changing mechanism of the double tool magazine provided in FIG. 2 .

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-7, it is a preferred embodiment provided by the utility model.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiting.

As shown in Figures 1 to 3, the CNC drilling and tapping center machine tool 20 provided in this embodiment includes a machine base 21, which is provided with a column 22 and a workbench 23 on one side of the column 22 for loading workpieces The column 22 is provided with a double tool magazine synchronous tool change mechanism 10, and the double tool magazine synchronous tool change mechanism 10 includes a box body 11 slidingly connected with the column 22 and a drive control assembly for driving the box body 11 to move up and down along the column 22 Two sets of tool clamping assemblies 12 are arranged on the box body 11, and each set of tool clamping components 12 includes a main shaft 121 for clamping a tool, a pressing tool that is drivingly connected with the main shaft 121 and is used to drive the main shaft 121 to loosen or clamp the tool Rod 122 and the top knife bar 123 that is connected with pressure knife bar 122 and is used to drive pressure knife bar 122 action, the both sides of box body 11 are respectively provided with a group of tool magazine assembly 13 that is fixed on the column 22, each group of knife magazine assembly 13 includes a storage tool 131 for storing a variety of different tools, a push rod 132 fixed on the storage tool 131, and a tool set under the push rod 132 and used for changing the tool between the tool storage 131 and the main shaft 121. The tool changer arm 133 and the ejector bar 123 can abut against the ejector rod 132 as the box body 11 rises.

As shown in Figures 1 to 3, the above-mentioned CNC drilling and tapping center machine tool 20 is used to process the parts. When the tool on the main shaft 121 needs to be changed, the box body 11 is placed on the column 22 under the drive of the drive control assembly. Do lifting movement, the clamping tool assembly 12 will move up and down with the box body 11, when the box body 11 moves to the tool change position, the top knife bar 123 will offset the fixed top bar 132 due to the upward movement, and the top knife bar 123 will stop the upward movement and press down on the tool bar 122, and the tool bar 122 will act to drive the main shaft 121 to release the tool. 131 to take out different cutters and put the cutters into the main shaft 121. Therefore, the above-mentioned CNC drilling and tapping center machine tool 20 realizes the operation of automatically changing the cutters on the main shaft 121, and because the two groups of tool clamping assemblies 12 simultaneously follow the casing 11 lifting movement, its tool change operation is carried out simultaneously; In addition, because the above-mentioned numerical control drilling and tapping center machine tool 20 has adopted two groups of tool holder assemblies 12, can process two parts simultaneously through the tool on the two main shafts 121. In summary, since the above-mentioned CNC drilling and tapping center machine tool 20 adopts two sets of tool holder assemblies 12 and two sets of tool magazine assemblies 13, it can realize synchronous processing of two parts, and synchronously and automatically change the tools on the two spindles 121, Therefore, compared with the prior art, it overcomes the problems of low production efficiency and high cost caused by the inability of the prior art to have both automatic tool change and simultaneous processing of multiple parts.

Regarding the preferred embodiment of the installation form of the clamping tool assembly 12 on the box body 11, as shown in Figures 1 to 3, the box body 11 is provided with an installation groove 111, and the bottom of the installation groove 111 is provided with an installation hole 112, and the main shaft 121 is installed In the installation hole 112, the lower end of the main shaft 121 is exposed outside the installation hole 112, and the upper end of the main shaft 121 extends in the installation groove 111. The upper end of 121 is pivotally connected, one end of pressing knife bar 122 is slidingly connected with mounting groove 111 , and the other end is against the lower end of top knife bar 123 . In this way, when the top knife bar 123 rises to abut against the top bar 132, the lower end of the top knife bar 123 will press down on the free end of the knife bar 122. Slide down, and press down on the upper end of the main shaft 121 at the same time, so that the main shaft 121 releases the tool.

As shown in Figures 1 to 5, in order to facilitate the spindle 121 to loosen or clamp the tool, the spindle 121 includes a shaft core cylinder 1211, an outer cylinder 1212 slidingly sleeved outside the shaft core cylinder 1211, and two shaft core cylinders 1211. The lower end is a clamp block 1213 for clamping the tool. The inner wall of the outer cylinder 1212 is provided with two opposite inner grooves 1214 extending from top to bottom. The depth of the inner grooves 1214 gradually becomes deeper from top to bottom. The blocks 1213 are slidingly matched with the two inner grooves 1214 respectively, and the pressing rod 122 is pivotally connected with the upper end of the shaft core barrel 1211 . In this way, when the knife rod 122 presses the upper end of the shaft core barrel 1211, the shaft core barrel 1211 will move downward relative to the outer tube 1212, and the clamping block 1213 will move from top to bottom along with the shaft core tube 1211, that is, the clamping block 1213 It will slide from top to bottom in the inner groove 1214, and because the depth of the inner groove 1214 gradually becomes deeper from top to bottom, therefore, when the two clamping blocks 1213 move from top to bottom, the relative distance between the two clamping blocks 1213 gradually increases. Increase until the two clamping blocks 1213 loosen the tool. Specifically, the clamping block 1213 is elastic.

As shown in Figures 1 and 2, in order to make it easier for the ejector rod 132 to resist the ejector bar 123, a mounting block 124 is provided on the box body 11, and a rotating shaft 125 is pivotally connected to the mounting block 124, and the rotating shaft 125 is provided along the The first cam 126 and the second cam 127 which are arranged at intervals in its circumferential direction, the top knife bar 123 can be offset against the first cam 126 along with the rising of the casing 11, and the second cam 127 can be moved against the first cam 126 along with the rising of the casing 11. Push rod 132 offsets. In this way, when the top knife rod 123 is in contact with the first cam 126 due to the upward movement, the first cam 126 will be driven to rotate, and the second cam 127 will be driven to rotate at the same time, until the second cam 127 is in contact with the ejector rod 132, the first cam will 126. The second cam 127 and the rotating shaft 125 stop rotating, so that the first cam 126 presses down on the knife rod 123, the top knife bar 123 presses down on the knife bar 122, and the pressure knife bar 122 presses down on the shaft core barrel 1211 of the main shaft 121.

As shown in Figures 1 and 2, in order to facilitate the free rotation of the rotating shaft 125 on the mounting block 124, a groove 1241 is provided on the mounting block 124, one end of the rotating shaft 125 is pivotally connected to the side wall of the groove 1241, and the other end passes through the groove. The side wall of the groove 1241 is exposed to the mounting block 124, the first cam 126 is arranged in the groove 1241, the second cam 127 is arranged on the exposed end of the rotating shaft 125, and the bottom of the groove 1241 is provided with a hole for the top knife bar 123 to pass through. The through hole 1242.

As shown in Figures 1 and 2, in order to limit the rotation range of the first cam 126 and prevent the top knife bar 123 from excessively abutting against the first cam 126, one side of the groove 1241 is provided for the first cam 126 to abut against to limit The limit block 128 of the rotation range of the first cam 126 . Specifically, the groove 1241 is open on three sides, and the limiting block 128 is disposed at one side of the opening of the groove 1241 .

In order to facilitate the abutting fit between the ejector rod 132 and the second cam 127 and facilitate the abutting fit between the ejector bar 123 and the first cam 126 , the first cam 126 and the second cam 127 form an included angle.

As shown in FIGS. 1 and 2 , in order to further limit the rotation range of the first cam 126 and prevent the top knife rod 123 from excessively abutting against the first cam 126 , the exposed end of the shaft 125 is provided with a limiter for limiting the rotation range of the shaft 125 . Position torsion spring 129, one end of limit torsion spring 129 is connected with mounting block 124, and the other end is connected with second cam 127.

Specifically, in order to facilitate the adjustment of the processing position of the workpiece, the workbench 23 includes a first slide rail 231 , a second slide rail 231 arranged on the first slide rail 231 and capable of sliding along the extending direction of the first slide rail 231 . The sliding rail 232 and the supporting plate 233 disposed on the second sliding rail 232 and slidable along the extending direction of the second sliding rail 232 . The workpiece is mounted on the carrier plate 233 .

As shown in Figures 1 and 2, in order to facilitate the tool change operation of the tool change arm 133, the two ends of the tool change arm 133 are respectively provided with a tool clamping position 1331 for clamping the tool. Rotationally connected, the two tool clamping positions 1331 are symmetrical about the connection point between the tool changing arm 133 and the tool storage part 131 . That is, the midpoint between the two tool clamping positions 1331 is rotationally connected with the tool storage part 131, so that the tool changing arm 133 rotates around the midpoint, so that the two tool clamping positions 1331 can be conveniently switched between the tool storage part 131 and the main shaft 121, This makes it easier to replace the tool. Specifically, the tool changing arm 133 is driven by a driving control assembly.

As shown in Figures 1 and 2, in order to facilitate the driving action of the pressing rod 122 on the main shaft 121, one end of the pressing rod 122 forms two clamping parts 1221, and the two clamping parts 1221 pass through the pivot shaft and the main shaft 121 respectively. The upper end is pivotally connected, and the clamping portion 1221 is slidably connected with the installation groove 111 .

As shown in Fig. 1 and Fig. 2, after the pressing tool bar 122 finishes lowering the main shaft 121, that is, after the tool pressing bar 122 completes a tool change operation, it needs to return to the position before the next tool change operation. Therefore, A return spring 1222 is arranged on the press bar 122 , and one end of the return spring 1222 is connected with the press bar 122 , and the other end is connected with the box body 11 . In this way, when the press bar 122 drives the main shaft 121 to release the tool, the action of the press bar 122 drives the return spring 1222 to deform elastically. Elastic force, so that the pressing bar 122 returns to the position state before the tool changing operation.

Specifically, the tool storage member 131 is a cutter head, the central axis of the cutter head is arranged horizontally, the ejector rod 132 is arranged above the cutter head, and the tool changing arm 133 is arranged below the cutter head.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (10)

1. CNC drilling and tapping center machine tool, characterized in that it includes a machine base, a column is provided on the base, and a workbench arranged on one side of the column and used for loading workpieces is provided on the column, and double tool magazines are provided on the column A synchronous tool change mechanism, the double tool magazine synchronous tool change mechanism includes a box body slidably connected to the column and a drive control assembly for driving the box body to move up and down along the column, and the box body is provided with Two groups of tool clamping assemblies, each set of tool clamping components includes a main shaft for clamping a tool, a pressure tool rod that is drivingly connected with the main shaft and used to drive the main shaft to release or clamp the tool, and a tool that is connected with the pressure tool. The knife bar is connected and is used to drive the top knife bar of the pressure knife bar. The two sides of the box are respectively provided with a set of knife magazine assemblies fixed on the column. Each set of knife magazine assemblies includes a storage tool for storing a variety of different tools, an ejector rod fixed on the tool storage device, and a tool changer arranged under the ejector rod for exchanging tools between the tool storage device and the main shaft arm, and the top knife rod can abut against the push rod as the box rises. 2. The CNC drilling and tapping center machine tool according to claim 1, wherein an installation groove is provided on the box body, an installation hole is provided at the bottom of the installation groove, and the main shaft is installed in the installation hole , the lower end of the main shaft is exposed outside the installation hole, the upper end of the main shaft extends in the installation groove, the top knife rod and the pressure knife rod are arranged in the installation groove, and the pressure knife The rod is pivotally connected to the upper end of the main shaft, one end of the pressing knife rod is slidably connected to the installation groove, and the other end is abutted against the lower end of the top knife bar. 3. The CNC drilling and tapping center machine tool according to claim 1, wherein the main shaft comprises a shaft core tube, an outer tube that is slipped on the outside of the shaft core tube, and two shafts that are located on the shaft core tube. The lower end is used to clamp the clamping tool. The inner wall of the outer cylinder is provided with two opposite inner grooves extending from top to bottom. The depth of the inner grooves gradually becomes deeper from top to bottom. The clamping blocks are slidingly matched with the two inner grooves respectively, and the knife pressing rod is pivotally connected with the upper end of the shaft core cylinder. 4. The CNC drilling and tapping center machine tool according to any one of claims 1 to 3, wherein a mounting block is provided on the box body, and a rotating shaft is pivotally connected to the mounting block, and the rotating shaft is provided with a The first cam and the second cam arranged at intervals in its circumferential direction, the top knife rod can be offset against the first cam with the rise of the box body, and the second cam can be moved along with the rise of the box body. Rise to offset against the push rod. 5. The CNC drilling and tapping center machine tool according to claim 4, wherein a groove is provided on the mounting block, one end of the rotating shaft is pivotally connected to the side wall of the groove, and the other end runs through the The side wall of the groove is exposed to the mounting block, the first cam is arranged in the groove, the second cam is arranged on the exposed end of the rotating shaft, and the bottom of the groove is opened for A through hole for the passage of the top knife rod. 6. The numerical control drilling and tapping center machine tool according to claim 5, wherein the exposed end of the rotating shaft is provided with a limiting torsion spring for limiting the rotation range of the rotating shaft, and one end of the limiting torsion spring is connected to the The mounting block is connected at the other end, and the other end is connected with the second cam. 7. The numerical control drilling and tapping center machine tool according to any one of claims 1 to 3, wherein the workbench includes a first slide rail, is arranged on the first slide rail and can move along the first slide rail. A second slide rail that slides in the extending direction of the slide rail, and a bearing plate that is arranged on the second slide rail and can slide along the extending direction of the second slide rail. 8. The CNC drilling and tapping center machine tool according to any one of claims 1 to 3, wherein the two ends of the tool changing arm are respectively provided with clamping positions for clamping the tool, and the tool changing arm and The tool storage part is rotatably connected, and the two tool clamping positions are symmetrical about the connection point between the tool changing arm and the tool storage part. 9. The numerical control drilling and tapping center machine tool according to claim 2, wherein one end of the press tool bar forms two clamping parts, and the two clamping parts are respectively pivoted with the upper end of the main shaft through a pivot shaft. Then, the clamping part is slidably connected with the installation groove. 10. The numerically controlled drilling and tapping center machine tool according to claim 2, wherein a return spring is provided on the presser bar, one end of the return spring is connected to the presser bar, and the other end is connected to the box body connect.