CN106270826A - A kind of lathe is with four station arbor flanges - Google Patents

Abstract

The invention discloses a four-station disc tool holder for a lathe, which comprises a fixed seat, a rotating disc, a fixed shaft, a center drill clamping body, a straight shank twist drill clamping body, a tap clamping sleeve and a reamer clamping body. set. The rotary disc is fixed on the fixed seat through the fixed shaft. The four side planes of the rotary disc are respectively equipped with a center drill clamping body, a straight shank twist drill clamping body, a tap clamping body and a reamer clamping body. Each clamping body Install the corresponding tool. When the present invention is turned on a lathe, it can be positioned and installed to perform multi-process processing at one time, and the corresponding process can be processed by turning the rotating disk to select a tool. Moreover, the mechanism is simple in structure, easy to use, easy and quick to replace the tool, can save the time of tool retraction, tool feeding and tool setting, and improve work efficiency. Simultaneously, the invention ensures the positioning accuracy of the cutting tool and facilitates the processing of high-quality components.

Description

A four-station disc tool holder for a lathe

technical field

The invention belongs to the field of metal cutting and processing, and in particular relates to a four-station disc tool holder for a lathe.

Background technique

When the shape of a part is processed by a tool on an ordinary lathe, it is necessary to perform multiple turning processes on the processed part, such as tapping after drilling, reaming after drilling, and other multiple processes. All processes cannot be realized by the same tool, so The tools fixed on the lathe must be changed at the same time as the process is changed. The front end of the tool clamping device with a traditional structure can only clamp one tool. When changing the tool, the tool in the previous process must be completely removed, and then a new tool must be re-installed. The tool replacement process is cumbersome, low work efficiency, and labor The strength is high, and the scrap rate of the workpiece due to tool damage is relatively high.

Contents of the invention

The present invention makes improvements to the above-mentioned existing technical problems, and proposes a four-station disc tool holder for lathes. The mechanism is simple in structure, easy to use, and easy and fast to replace tools. During the lathe turning process, as long as the rotating disk is moved to the corresponding tool position, multi-tool and multi-process processing can be performed, omitting the process of tool retraction, tool entry and tool setting, saving a lot of time and improving work efficiency. greatly improved.

The utility invention is achieved through the following technical solutions:

A four-station disc tool holder for a lathe, including a fixed seat, a fixed shaft, a rotating disc, a center drill clamping body, a straight shank twist drill clamping body, a tap transition sleeve, a tap clamping body, and a reamer transition sleeve and reamer clamping body; the fixed seat is installed on the lathe square tool holder, the rotating disk is connected to the fixed seat through the fixed shaft, a compression spring and a one-way thrust ball bearing are installed between the rotating disk and the fixed seat, and the outer end surface of the rotating disk passes through The nuts are locked and fixed; the center drill clamping body, the straight shank twist drill clamping body, the tap transition sleeve and the reamer transition sleeve are placed in the blind holes on the four sides of the rotating disc, and the hexagon socket set screws Compress the above four parts; the tap clamping body is installed in the tap transition sleeve, and a compression spring is installed in the tap transition sleeve, and the keyway surface of the tap clamping body is fixed to the tap transition sleeve by the hexagon socket shoulder positioning screw The upper part prevents the tap clamping body from rotating, and the reamer clamping body is installed in the reamer transition sleeve, fixed by a slotted thread pin and a circlip, and adopts a floating connection.

The further fixing seat is a T-shaped structure with a threaded hole in the middle and steel ball positioning holes on both sides.

The further fixed shaft is a stud structure, with a plane milled in the middle, threads at both ends, one end connected with the threaded hole in the middle of the fixing seat, and the other end connected with a nut with a handle consisting of a bakelite handle, a connecting rod and a nut.

The further rotating disk is a cylinder and four planes are evenly distributed on the side, and the same surface is processed on each plane. Blind hole, one side of the end face has a threaded hole for installing a set screw, and the other side has a steel ball positioning spherical surface.

Beneficial effect:

1. The four-station disc tool holder is installed on the square tool holder of the lathe, which is convenient for the operation and use of the tool. The present invention makes full use of the automatic tool-feeding function of the lathe tool holder, saves the use of the tailstock of the lathe, saves the time for adjusting the tailstock back and forth in each process, reduces the labor intensity of the operator, improves labor productivity, and reduces production costs. cost.

2. Adopt the installation method of evenly distributed tools around the rotating disk, the rotating disk can rotate freely, and can install appropriate tool models and specifications according to the processing requirements of the parts, which can reduce the processing procedures of the parts and facilitate the mass production of products when multi-tool processing. Increase the productivity of lathes.

3. The installation hole of the actuator around the rotating disk and the connecting body of the actuator adopt a uniform size tolerance, which improves the interchangeability of the actuator. As long as the clamping body of the actuator is replaced, the specification and type of the tool can be replaced, which expands the tool. The scope of use of the clamping mechanism.

4. The tap clamping body and the tap transition sleeve adopt a sliding connection, relying on the compression spring to provide the reset force, the tap and the clamping body are fixed, automatically feed during the tapping process, and rely on the spring elastic force to reset when retreating, avoiding the selection of incorrect Processing loss caused by suitable machine tool feed speed or labor cost waste caused by manual feeding.

5. The reamer clamping body and the reamer transition sleeve adopt a floating structure, which realizes reaming on the lathe and improves the use range of the lathe.

Description of drawings

Fig. 1 is a schematic diagram of the structure of a four-station disc tool holder for a lathe according to the present invention.

Fig. 2 is a structural schematic diagram of the rotating mechanism of the present invention.

Fig. 3 is a schematic diagram of the installation structure of the center drill of the actuator of the present invention.

Fig. 4 is a schematic diagram of the installation structure of the straight shank twist drill of the actuator of the present invention.

Fig. 5 is a schematic diagram of the installation structure of the actuator tap of the present invention.

Fig. 6 is a schematic diagram of the reamer installation structure of the actuator of the present invention.

Fig. 7 is a structural schematic diagram of the fixing mechanism of the present invention.

Fig. 8 is a detailed view of the rotating disc of the present invention.

Fig. 9 is a detailed view of the fixing seat of the present invention.

Fig. 10 is a detailed view of the installation structure of the threaded tap in Fig. 5 .

Fig. 11 is a detailed view of the installation structure of the reamer in Fig. 6 .

Figure 12 is a photo of the center hole processed by the traditional method.

Figure 13 is a photo of the hole drilled by the traditional method.

Figure 14 is the traditional method of tapping.

Figure 15 is a photo of the traditional method of reaming.

Fig. 16 is a photograph of the central hole drilled in the present invention.

Fig. 17 is drill of the present invention hole photo.

Fig. 18 is a photo of M8 of the present invention.

Figure 19 is for the present invention Reaming photo.

In the figure (1) - fixed seat; (2) - positioning steel ball; (3) - steel ball compression spring; (4) - hexagon socket set screw M10×25; (5) - one-way thrust ball bearing; (6) - Compression spring; (7) - Cross recessed countersunk head screw; (8) - Compression spring stopper; (9) - Tap clamping body compression spring; (10) - Tap transition sleeve; (11) - Pin shaft ;(12)-tapping clamping body; (13)-hexagon socket set screw M6×16; (14)-hexagon socket shoulder set screw; (15)-slotted threaded pin; (16)-reamer Clamping body; (17)-reamer transition sleeve; (18)-circlip; (19)-bakelite handle; (20)-connecting rod; (21)-nut; (22)-large flat washer; (23) -Fixed shaft; (24)-Rotary disk; (25)-Inner hexagon set screw M6×8; (26)-Center drill clamping body; (27)-Inner hexagon set screw M6×12; (28) - Straight shank twist drill clamping body.

detailed description

The content of the present invention will be described below in conjunction with the embodiments and the accompanying drawings.

A four-station disc tool holder for a lathe, characterized in that it includes a fixed seat 1, a fixed shaft 23, a rotating disc 24, a center drill clamping body 26, a straight shank twist drill clamping body 28, and a tap transition sleeve 10 , Tap clamping body 12, reamer transition sleeve 17 and reamer clamping body 16.

The fixed seat 1 is installed on the square tool rest of the lathe. There are threaded holes and bearing mounting holes in the middle of the fixed seat, and steel ball positioning holes are arranged on both sides; the two ends of the fixed shaft 23 are threaded, and one end is connected with the threaded hole in the middle of the fixed seat 1 for positioning. The steel ball 2 is installed in the steel ball positioning holes on both sides of the fixing seat 1 through the compression spring (3) and the hexagon socket set screw 4;

A compression spring 6 and a one-way thrust ball bearing 5 are installed between the rotating disk 24 and the fixed seat 1, and are connected by a fixed shaft 23. The outer end surface of the rotating disk 24 is composed of a bakelite handle 19, a connecting rod 20, and a nut 21 through a large flat washer 22. The belt nut is locked and fixed, and the rotating disc 24 has a positioning spherical surface on the contact end surface of the fixed seat 1, which is in contact with the positioning steel ball 2 for positioning;

The center drill clamping body 26, the straight shank twist drill clamping body 28, the tap transition sleeve 10 and the reamer transition sleeve 17 are placed in the blind holes on the four sides of the rotating disk 24, and the hexagon socket set screw 25 is rotated The threaded holes on the outer end surface of the disc 24 press the above four components; the center drill clamping body 26 has a through hole in the middle, and the center drill is installed in the through hole, and is tightly fixed by four inner hexagons evenly distributed on the head of the center drill clamping body 26. The screw 27 is fixed; the through hole in the middle of the straight shank twist drill clamping body 28, the straight shank twist drill is installed in the through hole, and is fixed by four hexagon socket set screws 13 evenly distributed on the head of the straight shank twist drill clamping body 28 Install the tap clamping body 12 and the compression spring 8 in the tap transition sleeve 10, and install the tap in the blind hole in the center of one end of the tap clamping body 12, and fix it by four hexagon socket set screws 13 evenly distributed around the periphery. The central threaded hole at one end deviates from the center pin hole, and is pressed into the pin shaft 11. There is a keyway on the cylindrical surface. The hexagon socket shoulder set screw 14 extends into the keyway through the tap transition sleeve 10, and the compression spring 9 is formed by the cross recessed countersunk head screw. 7 is loaded into the tap transition sleeve 10 through the compression spring stopper 8; the reamer clamping body 16 is installed in the reamer transition sleeve 17, fixed by the slotted thread pin 15 and the snap spring 18, and the middle of the reamer clamping body 16 is connected hole, the reamer is installed in the through hole, and is fixed by four hexagon socket set screws 27 evenly distributed on the head of the reamer clamping body 16.

The fixed seat 1 is a T-shaped structure, and the rotating disk 24 is a cylinder with four planes evenly distributed on the side.

The rotating disk 24 passes through the fixed shaft 23 and is connected to the fixed seat 1, and a compression spring 6 and a one-way thrust ball bearing 5 are installed between the rotating disk 24 and the fixed seat 1, and the compression spring 6 and the one-way thrust ball bearing 5 ensure the rotation of the rotating disk. 24 can be freely toggled.

The four-station disc tool holder for a lathe comprises a rotating mechanism, a four-station actuator and a fixing mechanism fixed on the four sides of the rotating disk; the rotating mechanism is connected to the outer end surface of the fixing mechanism, and is formed by positioning steel ball positioning; the rotating mechanism includes a rotating disk 24, a hexagon socket set screw 25; Tight body 12, reamer transition sleeve 17 and reamer clamping body 16; Described fixed mechanism comprises fixed seat 1, fixed shaft 23, and fixed shaft 23 is connected in the center screw hole of fixed seat 1 by thread, and is fixed by fixed seat (1) The large surface is positioned with the outer surface of the tool holder to ensure its positional accuracy requirements.

The lathe uses a rotatable tool clamping mechanism installed on the lathe tool holder. The rotating mechanism drives the actuator to rotate around the fixed mechanism.

The blind holes on the four sides of the rotating disk 24 can be adjusted to install various tool transition sleeves, and the transition sleeves have tightening holes and are fixed by set screws.

The tool of the executive part of the actuator is placed in the clamping body and fixed by a set screw; the tap clamping body 12 is placed in the tap transition sleeve 10 and slides through the keyway, and the reset force is provided by the compression spring 8; The knife clamping body 16 is placed in the reamer transition sleeve 17 and is fixed by a slotted threaded pin 15 and a snap ring 18, and adopts a floating structure.

In conjunction with accompanying drawings 1, 2 and 7, a four-station disc tool holder for a lathe includes a fixing mechanism and a rotating mechanism composed of a fixed seat 1, a fixed shaft 23, and a rotating disk 24; the fixed seat 1 is installed on a square knife of an ordinary lathe On the frame, a compression spring 6 and a one-way thrust ball bearing 5 are installed in the middle of the rotating disk 24 and the fixed seat 1, and are connected by a fixed shaft 23; The formed band nut is locked and fixed, and the rotating disk 24 has a positioning spherical surface on the contact end surface of the fixed seat 1, which is contacted with the positioning steel ball 2 for positioning, and finds the exact center position.

1, 3, 4, 5 and 6, a four-station disc tool holder for a lathe, including a center drill clamping body 26, a straight shank twist drill clamping body 28, a tap transition sleeve 10, and a tap clamp Tight body 12, reamer transition sleeve 17 and reamer clamping body 16 and their connection.

Center drill clamping body 26, twist drill clamping body 28, wire tapping transition sleeve 10, wire tapping clamping body 12, reamer transition sleeve 17 and reamer clamping body 16 are housed on the rotating disk 24.

Example processing: Drilling and reaming:

The corresponding clamping body is installed with center drill, twist drill, reamer.

Turn the rotating disk to make the center drill correspond to the processed part, use the lathe to quickly move to the workpiece to start the spindle, and then slowly feed (that is, work) the center hole to the required size.

After the center hole is completed, quickly withdraw to the safe position, turn the rotating disk so that Twist drill corresponds to the processed parts, change the spindle speed, fast feed to the workpiece, and then work into the processing hole.

After the hole worker advances to the required processing depth, he quickly withdraws to a safe position and turns the rotating disc to make The reamer corresponds to the processing part, the spindle speed is changed, and the processing is carried out hole until the reaming is complete and then retract to a safe position, Drilling and reaming is complete.

The above steps need to be repeated for processing batch parts.

M8 drilling and tapping process:

The corresponding clamping body is installed with center drill, Twist drill, M8 wire tapping.

Turn the rotating disk to make the center drill correspond to the processed part, use the lathe to quickly move to the workpiece to start the spindle, and then slowly feed (that is, work) the center hole to the required size.

After the center hole is completed, quickly withdraw to the safe position, and turn the rotating disk so that Twist drill corresponds to the processed parts, change the spindle speed, fast feed to the workpiece, and then process hole.

After the hole worker advances to the required processing depth, he quickly exits to a safe position, turns the rotating disk to make the tap correspond to the processed part, changes the spindle speed, and feeds the tool post until the tapping is completed and then the spindle reverses. The tool is retracted under the traction of the compression spring in the transition sleeve, and the tool is quickly retracted to a safe position after the tapping speed is reached;

The above steps need to be repeated for processing batch parts.

Compared:

Drilling and tapping parts on a common lathe

1. The traditional craft (for example tapping M8) needs to change the tool several times and drag the tailstock of the lathe back and forth

1) Drill the center hole: put the drill chuck in the tailstock, the drill chuck does not hold the center drill and drag the tailstock of the lathe to the place close to the workpiece to be processed, then lock the tailstock to start the spindle, and manually rotate the rocker on the tailstock. Turn the drill chuck on the tailstock sleeve forward to cut to the required chamfer size. (Because of manual rotation, the old method maintains the feed at a constant speed).

2) drill After drilling the center hole, drag the tailstock away to a safe distance, remove the center drill and replace it with the twist drill, or replace the upper with The twist drill chuck adjusts the spindle speed to drag the tailstock to the workpiece, and the processing process is the same as above.

3) Tap M8, drag the tailstock to a safe position, replace the special tapping fixture equipped with M8 tapping in the tailstock sleeve, and then move the tailstock to adjust the spindle speed. Exit the tap to complete tapping.

1. Drill and ream the parts on an ordinary lathe.

1. Traditional crafts (with For example), the steps are basically the same as that of processing M8.

1) Drill the center hole as shown in Figure 12.

2) drill The hole is shown in Figure 13.

3) reaming.

2. Utilize this fixture to carry out drilling and tapping or drilling and reaming of batches of parts. The disk or tool rest of the present invention is installed on the square tool rest of a common lathe, and the center position is found.

The disc tool holder is equipped with a center drill, Twist drill, M8 wire tapping.

Processing process: 1. Rotate the disc tool holder so that the center drill corresponds to the processed part, use the fast movement of the lathe to start the spindle at the workpiece, and then slowly feed (that is, work) the center hole to the required size.

After the center hole is completed, quickly withdraw to a safe position, and turn the disc knife holder so that Twist drill corresponds to the processed parts, change the spindle speed, fast feed to the workpiece, and then work into the processing hole.

After the hole completes the required processing depth, quickly exit to the safe position, turn the disc tool holder, make the tap correspond to the processed part, change the spindle speed, feed the tool holder in the direction until the reaming is completed, and then the spindle reverses, and the tap is in the position of the fixture. The knife retracts under the traction of the compression spring, and quickly retracts to a safe position after the tapping speed is reached.

The above steps need to be repeated for processing batch parts.

The drilling and reaming process is basically the same as above, only need to replace the tapping clamping fixture with the reaming clamping fixture, and replace the corresponding twist drill and clamping fixture.

The described embodiment is a preferred implementation of the present invention, but the present invention is not limited to the above-mentioned implementation, without departing from the essence of the present invention, any obvious improvement, replacement or modification that can be made by those skilled in the art All belong to the protection scope of the present invention.

Claims (7)

1. a lathe is with four station arbor flanges, it is characterised in that include fixing seat (1), fixing axle (23), rotating disk (24), centre drill clamping body (26), straight shank twist drill clamping body (28), screw tap spacer shell (10), screw tap clamping body (12), reamer Spacer shell (17) and reamer clamping body (16)；

Described fixing seat (1) is arranged on lathe square tool post, has screwed hole and bearing mounting hole in the middle of fixing seat, and there is steel ball both sides Hole, location；Fixing axle (23) two ends have screw thread, one end to be connected with fixing seat (1) neutral threaded hole, and positioning ball (2) is by compression Spring (3) and interior hexagonal holding screw (4) are arranged on the hole, steel ball location, both sides of fixing seat (1)；

Compression spring (6), single direction thrust ball bearing (5) are installed, by fixing axle in the middle of described rotating disk (24) and fixing seat (1) (23) connecting, rotating disk (24) outer face is by big flat washer circle (22) with by bakelite handle (19), connecting rod (20), nut (21) group Nut check fixed by the band become, and rotating disk (24) contacts end face with fixing seat (1) location sphere, connects with locking ball (2) Touch location；

Described centre drill clamping body (26), straight shank twist drill clamping body (28), screw tap spacer shell (10) and reamer spacer shell (17) Being placed in the blind hole of (24) four sides of rotating disk, interior hexagonal holding screw (25) passes through rotating disk (24) end face outside screwed hole Compress aforementioned four parts；Centre drill clamping body (26) intermediate throughholes, centre drill is installed in through hole, and by centre drill clamping body (26) four interior hexagonal holding screws (27) that head is uniform are fixed；Straight shank twist drill clamping body (28) intermediate throughholes, staight shank fiber crops Flower brill is installed in through hole, and solid by four interior hexagonal holding screws (13) that straight shank twist drill clamping body (28) head is uniform Fixed；Screw tap clamping body (12), compression spring (8), screw tap clamping body (12) one end central blind hole are installed in screw tap spacer shell (10) Screw tap is installed, and is fixed by four interior hexagonal holding screws (13) that periphery is uniform, other end screwed hole of centre, off-center pin Hole, press-in bearing pin (11), the face of cylinder has keyway, interior hexagonal belt shoulder location screw (14) is stretched into by screw tap spacer shell (10) In keyway, compression spring (9) is loaded in screw tap spacer shell (10) by stage clip catch (8) by cross recessed countersunk head sscrew (7)；Reamer Reamer clamping body (16) is installed in spacer shell (17), fluting threaded (15) and jump ring (18) fixes, reamer clamping body (16) Intermediate throughholes, reamer is installed in through hole, and by uniform four the interior hexagonal holding screws (27) of reamer clamping body (16) head Fixing.

A kind of lathe the most according to claim 1 is with four station arbor flanges, it is characterised in that described fixing seat (1) is T Type structure, rotating disk (24) be cylinder and on side uniform four planes.

A kind of lathe the most according to claim 1 is with four station arbor flanges, it is characterised in that described rotating disk (24) is worn Cross fixing axle (23) to be connected with fixing seat (1), compression spring (6), unilateral thrust are installed between rotating disk (24) and fixing seat (1) Ball bearing (5), compression spring (6) and single direction thrust ball bearing (5) ensure that rotating disk (24) can freely be stirred.

A kind of lathe the most according to claim 1 is with four station arbor flanges, it is characterised in that includes rotating mechanism, consolidate The actuator of four stations and fixed mechanism due to four sides of rotating disk；Described rotating mechanism is connected to outside fixed mechanism End face, and positioned by positioning ball；Described rotating mechanism includes rotating disk (24), interior hexagonal holding screw (25)；Described execution Mechanism include centre drill clamping body (26), straight shank twist drill clamping body (28), screw tap spacer shell (10), screw tap clamping body (12), Reamer spacer shell (17) and reamer clamping body (16)；Described fixed mechanism includes fixing seat (1), fixing axle (23), fixing axle (23) be threadedly attached in the center screw of fixing seat (1), and by the big face of fixing seat (1) and knife rest lateral surface location with Ensure its position degree requirement.

A kind of lathe the most according to claim 1 is with four station arbor flanges, it is characterised in that this lathe rotatable knife Tool clamping mechanism is arranged on lathe saddle, and rotating mechanism drives actuator to rotate around fixed mechanism, rotary shaft and lathe master Axle is vertical, and fixing seat is parallel with machine tool chief axis.

A kind of lathe the most according to claim 1 is with four station arbor flanges, it is characterised in that described rotating disk (24) four On individual side, blind hole can adjust the multiple cutter spacer shell of installation, spacer shell has tightening hole, and is fixed by holding screw.

A kind of lathe the most according to claim 4 is with four station arbor flanges, it is characterised in that holding of described actuator Row part cutter is placed in clamping body, and is fixed by holding screw；Screw tap clamping body (12) is placed in screw tap spacer shell (10), and Slided by keyway, compression spring (8) provide reset force；It is interior by slotting that reamer clamping body (16) is placed in reamer spacer shell (17) Threaded (15) and jump ring (18) are fixed, and use floating structure.