CN210435124U

CN210435124U - High-precision pin slot machining clamp

Info

Publication number: CN210435124U
Application number: CN201921466725.4U
Authority: CN
Inventors: 梁广洪; 夏幸福; 缑海滨
Original assignee: Precision Huanyu Hardware Shenzhen Co Ltd
Current assignee: Precision Huanyu Hardware Shenzhen Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-01
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a high accuracy keyway adds clamping apparatus belongs to parts machining technical field, and its technical scheme main points are: including the mount pad, the mount pad is connected with a plurality of groups grooving mechanism of processing keyway, and the work piece passes the mount pad just is located between the grooving mechanism, the grooving mechanism is including being used for grooved drift and the drive block that the drive drift removed towards the work piece, the drive block slides with the mount pad and is connected, the drive block slides from top to bottom along the mount pad and its upper end is higher than the up end of mount pad, first wedge face has all been seted up to the drive block lower extreme, the one end tilt up of work piece is close to first wedge face, the one end butt of work piece is kept away from to first wedge face and drift. The utility model discloses a rational in infrastructure utilizes slotting mechanism to set up a plurality of cotter ways simultaneously at the work piece lateral wall to efficiency when having increased the cotter way and having seted up.

Description

High-precision pin slot machining clamp

Technical Field

The utility model belongs to the technical field of the parts machining, more specifically say, it relates to a high accuracy cotter way adds clamping apparatus.

Background

Three pin grooves need to be formed in the side wall of a cylindrical workpiece, and fine protrusions need to be formed at the openings of the pin grooves so as to fix the position of a bar when the workpiece is inserted into a round hole. At this time, the workpiece needs to be processed by a punch, and when the punch is inserted into the workpiece to form the pin groove, the punch transfers the material in the pin groove to the pin groove opening to form the protrusion.

However, when the workpiece is directly processed by the punch press, three pin grooves are formed in the side wall of the workpiece only by three times of punching, and the processing process of the pin grooves is troublesome at the moment, so that the processing efficiency is affected.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high accuracy cotter way adds clamping apparatus for solve the problem that can't be simultaneously at the three cotter way of workpiece surface processing.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high accuracy keyway adds clamping apparatus, includes the mount pad, the mount pad is connected with a plurality of groups grooving mechanism of processing keyway, and the work piece passes the mount pad just is located between the grooving mechanism, grooving mechanism is including being used for grooved drift and the drive block that the drive drift removed towards the work piece, the drive block slides with the mount pad and is connected, the drive block slides from top to bottom along the mount pad and its upper end is higher than the up end of mount pad, first wedge has all been seted up to the drive block lower extreme, the one end tilt up that first wedge is close to the work piece, the one end butt of work piece is kept away from to first wedge and drift.

Through adopting above-mentioned technical scheme, add man-hour to the work piece, arrange the work piece in the mounting hole, later the punch press drives the drive block downstream, utilizes the first wedge face of drive block to drive three drift and remove towards the axis of mounting hole, can process out three cotter way this moment simultaneously to accelerate the efficiency of cotter way processing.

The utility model discloses further set up to: the drive groove has all been seted up to the drift lower extreme, the mount pad all is connected with the butt piece, the butt piece is inserted and is arranged in the drive groove, all be provided with the spring that the direction that the work piece was kept away from to the drive drift orientation in the drive groove removes, the terminal surface butt of work piece is kept away from to the one end of spring and butt piece, the other end of spring and the lateral wall butt of drive groove orientation work piece.

Through adopting above-mentioned technical scheme, when the punch press stopped to apply decurrent pressure to the drive block, the spring applyed the elasticity of keeping away from the mounting hole to the drift, made the drift move towards the direction of keeping away from the mounting hole, no longer needed the manual work to remove the drift this moment to make slotting mechanism's use more convenient.

The utility model discloses further set up to: the spacing groove has all been seted up to the drive block upper end, the lateral wall that the work piece was kept away from to the spacing groove drive block runs through, the mount pad upper end all can be dismantled and be connected with the stopper, the one end of stopper is inserted respectively and is arranged in the spacing inslot, when the drive block did not drive the drift and remove towards the work piece, terminal surface and spacing groove up end butt under the stopper.

Through adopting above-mentioned technical scheme, utilize the cooperation of stopper and spacing groove, inject the position of drive block, make the drive block be difficult for droing from the drive inslot to make slotting mechanism's use more stable.

The utility model discloses further set up to: the mounting seat penetrates through the mounting hole, a guide sleeve for guiding a workpiece is detachably connected in the mounting hole, a positioning hole for accommodating the workpiece is coaxially penetrated through the guide sleeve, a plurality of connecting holes communicated with the positioning hole are circumferentially penetrated through the side wall of the guide sleeve, and one end of the punch penetrates through the connecting hole and is inserted into the positioning hole.

Through adopting above-mentioned technical scheme, utilize removable uide bushing to fix a position not unidimensional work piece to can carry out slotting to not unidimensional work piece and process, thereby make the course of working of work piece more convenient.

The utility model discloses further set up to: and a second wedge-shaped surface is arranged at an opening at the upper end of the positioning hole.

Through adopting above-mentioned technical scheme, utilize the second wedge face to increase locating hole upper end open-ended area, utilize the second wedge face to lead to the removal of work piece simultaneously, make the work piece change and insert in the locating hole.

The utility model discloses further set up to: the lower end of the mounting seat is connected with a cylinder for driving the workpiece to move upwards, and a piston rod of the cylinder is connected with the workpiece.

Through adopting above-mentioned technical scheme, utilize the cylinder to promote the work piece rebound after seting up the cotter way, make the upper end of work piece stretch out in the locating hole, can directly take out the work piece from the locating hole this moment, make the process of unloading more convenient.

The utility model discloses further set up to: the piston rod of cylinder is connected with the adjustment mechanism who adjusts the work piece position, adjustment mechanism includes the regulation seat of being connected with the piston rod of cylinder, the regulating block of being connected with the work piece and the adjusting screw who adjusts the regulating block position, adjusting screw and regulation seat threaded connection, adjusting screw keeps away from the one end and the regulating block fixed connection of regulating seat.

By adopting the technical scheme, the distance between the adjusting block and the adjusting seat is adjusted by the adjusting screw rod, so that the position of the pin slot on the workpiece is adjusted.

The utility model discloses further set up to: the adjusting screw is in threaded connection with an adjusting nut, and the lower end of the adjusting nut is abutted to the upper end of the adjusting seat.

By adopting the technical scheme, the position of the adjusting screw rod is limited by the adjusting nut, so that the adjusting screw rod is not easy to rotate when being vibrated, and the position of the pin slot on the workpiece is not easy to change.

To sum up, the utility model discloses following beneficial effect has:

1. the grooving mechanism is utilized to form the pin grooves on the side wall of the workpiece, so that three pin grooves can be processed simultaneously, and the processing efficiency of the pin grooves is improved;

2. the adjusting screw is utilized to adjust the distance between the adjusting block and the adjusting seat, and the relative position between the workpiece and the punch can be adjusted at the moment, so that pin grooves at different positions can be machined on the surface of the workpiece.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a schematic view illustrating an internal structure of the mounting base according to the present embodiment;

fig. 3 is a schematic diagram for showing the adjusting mechanism according to the present embodiment.

Description of the drawings: 1. a mounting seat; 11. a base plate; 111. a guide groove; 12. a top plate; 121. a guide groove; 13. mounting holes; 14. a butting block; 15. a spring; 16. a limiting block; 17. a guide sleeve; 171. positioning holes; 172. a second wedge-shaped face; 173. connecting holes; 2. a grooving mechanism; 21. a punch; 22. a drive block; 221. a first wedge-shaped face; 222. a drive slot; 223. a limiting groove; 3. a cylinder; 4. an adjustment mechanism; 41. an adjusting seat; 42. adjusting the screw rod; 43. an adjusting block; 44. and adjusting the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

A high-precision pin groove machining clamp comprises a mounting seat 1, three groups of grooving mechanisms 2 (shown in figure 2) for machining pin grooves are connected to the mounting seat 1, and each grooving mechanism 2 comprises a punch 21 for grooving and a driving block 22 for driving the punch 21 to move towards a workpiece. The mounting seat 1 comprises a bottom plate 11 connected with the punch press body through bolts and a top plate 12 fixed at the upper end of the bottom plate 11 through bolts, a mounting hole 13 is formed through the bottom plate 11 and the top plate 12 together, and a workpiece is inserted into the mounting hole 13. The upper end of the bottom plate 11 is circumferentially provided with three guide grooves 111 communicated with the mounting hole 13 around the axis of the mounting hole 13, and the punch 21 is arranged in the guide grooves 111 to slide. Three guide grooves 121 are formed in the upper end of the top plate 12 in a penetrating manner, the driving blocks 22 are respectively inserted into the guide grooves 121 to slide up and down, and the upper end faces of the driving blocks 22 are higher than the upper end faces of the top plate 12. First wedge-shaped surfaces 221 are formed in the lower end face of the driving block 22, one ends, close to the mounting hole 13, of the first wedge-shaped surfaces 221 are inclined upwards, and the first wedge-shaped surfaces 221 are abutted to one end, far away from the mounting hole 13, of the punch 21. When the workpiece is machined, the workpiece is placed in the mounting hole 13, then the punch drives the driving block 22 to move downwards, the first wedge-shaped surface 221 of the driving block 22 drives the three punches 21 to move towards the axis of the mounting hole 13, and at the moment, three pin grooves can be machined simultaneously, so that the machining efficiency of the pin grooves is improved.

As shown in fig. 2, since the punch 21 cannot automatically move in a direction away from the mounting hole 13 after the punch 21 is pushed by the driving block 22 to machine the pin groove, the punch 21 needs to be manually moved away from the mounting hole 13, which still causes troublesome machining of the pin groove. Therefore, the lower end of the punch 21 is provided with the driving groove 222 along the length direction, the upper end of the bottom plate 11 is integrally formed with the abutting block 14, and one end of the abutting block 14 far away from the bottom plate 11 is inserted into the driving groove 222. The driving grooves 222 are each provided with a spring 15 for driving the punch 21 to move in a direction away from the mounting hole 13, one end of the spring 15 abuts against an end face of the abutting block 14 away from the mounting hole 13, and the other end of the spring 15 abuts against a side wall of the driving groove 222 facing the mounting hole 13. When the punch press stops applying downward pressure to the driving block 22, the spring 15 applies elastic force to the punch 21 away from the mounting hole 13, so that the punch 21 moves towards the direction away from the mounting hole 13, and at the moment, the punch 21 does not need to be moved manually, so that the slotting mechanism 2 is more convenient to use.

Since the driving block 22 is moved upward by the pressing force of the punch 21 after it is no longer pressed downward by the punch as shown in fig. 2, the driving block 22 is easily released from the driving groove 222 when the upward movement speed of the driving block 22 is too high, thereby affecting the use of the notching mechanism 2. Therefore, three limit blocks 16 for limiting the position of the driving block 22 are fixed on the upper end of the top plate 12 by using bolts, and the limit blocks 16 are circumferentially arranged around the axis of the mounting hole 13. Spacing groove 223 has all been seted up to the driving block 22 upper end, and spacing groove 223 runs through the lateral wall that the driving block 22 is far away from the mounting hole 13 axis, and the one end of stopper 16 is inserted and is arranged in spacing groove 223. When the driving block 22 does not drive the punch 21 to move toward the axis of the mounting hole 13, the lower end surface of the stopper 16 abuts against the upper end surface of the stopper groove 223. The position of the driving block 22 is limited by the matching of the limiting block 16 and the limiting groove 223, so that the driving block 22 is not easy to fall off from the driving groove 222, and the using process of the slotting mechanism 2 is more stable.

As shown in fig. 2, since the sizes of different workpieces are different, and the positions of the workpieces having different sizes need to be defined, a guide sleeve 17 for guiding the workpieces is inserted into the mounting hole 13, and the guide sleeve 17 is connected to the top plate 12 using a bolt. A positioning hole 171 for accommodating a workpiece is coaxially penetrated through the end surface of the guide sleeve 17, three connecting holes 173 communicated with the positioning hole 171 are circumferentially penetrated through the outer side wall of the guide sleeve 17, and one end of the punch 21 away from the driving block 22 is inserted into the positioning hole 171 through the connecting holes 173. The replaceable guide sleeve 17 is used for positioning the workpieces with different sizes, so that the workpieces with different sizes can be grooved, and the processing process of the workpieces is more convenient.

As shown in fig. 2, when the position of the workpiece is positioned by using the guide sleeve 17, the outer wall of the workpiece is attached to the inner wall of the positioning hole 171, and at this time, the process of inserting the workpiece into the positioning hole 171 is troublesome. Therefore, the second wedge-shaped surface 172 is disposed at the upper opening of the positioning hole 171, the area of the upper opening of the positioning hole 171 is increased by the second wedge-shaped surface 172, and the workpiece is guided by the second wedge-shaped surface 172 to be inserted into the positioning hole 171 more easily.

Since the entire workpiece is inserted into the positioning hole 171 after the workpiece is machined, it is difficult to remove the workpiece from the positioning hole 171. Therefore, the lower end of the bottom plate 11 is connected with a cylinder 3 for driving the workpiece to move upwards by using bolts, the cylinder 3 is connected with an air compressor, and a piston rod of the cylinder is connected with the workpiece. After the pin slot is formed, the cylinder 3 is used for pushing the workpiece to move upwards, so that the upper end of the workpiece extends out of the positioning hole 171, and the workpiece can be directly taken out of the positioning hole 171, so that the blanking process is more convenient.

As shown in fig. 3, since the positions of the pin grooves to be formed on the workpieces with different sizes are different, the positions of the different workpieces are adjusted. Therefore, the piston rod of the cylinder 3 is connected to an adjusting mechanism 4 for adjusting the position of the workpiece, and the adjusting mechanism 4 includes an adjusting seat 41 connected to the piston rod of the cylinder 3 by a bolt, an adjusting block 43 abutting against the lower end surface of the workpiece, and an adjusting screw 42 for adjusting the distance between the adjusting block 43 and the adjusting seat 41. The lower end of the adjusting screw 42 is in threaded connection with the adjusting seat 41, the upper end of the adjusting screw 42 is welded with the lower end of the abutting block 14, and the abutting block 14 is inserted into the positioning hole 171. The distance between the adjusting block 43 and the adjusting seat 41 is adjusted by the adjusting screw rod 42, so that the position of the pin slot of the workpiece is adjusted.

In order to prevent the adjusting screw 42 from rotating when subjected to vibration, the distance between the adjusting block 43 and the adjusting seat 41 is not easily changed. As shown in fig. 3, an adjusting nut 44 is screwed to the adjusting screw 42, and the lower end of the adjusting nut 44 abuts against the upper end of the adjusting seat 41. The position of the adjusting screw rod 42 is limited by the adjusting nut 44, so that the adjusting screw rod 42 is not easy to rotate when being vibrated, and the position of the workpiece for forming the pin slot is not easy to change.

The working principle is as follows:

before the workpiece is machined, the adjusting screw 42 is rotated to adjust the distance between the adjusting block 43 and the adjusting seat 41, and then the adjusting nut 44 is rotated to abut against the upper end of the adjusting seat 41. After a workpiece to be machined is placed in the positioning hole 171, the punch press is started, downward pressure is applied to the driving block 22 by the punch press, the driving block 22 applies a force perpendicular to the first wedge surface 221 to the axis of the mounting hole 13 to the punch 21, and the punch 21 is moved toward the axis of the mounting hole 13 to punch a pin groove in the surface of the workpiece. Then, the punch press does not apply downward pressure to the driving block 22 any more, the punch 21 moves towards the direction far away from the axis of the mounting hole 13 under the action of the elastic force applied by the spring 15, the driving block 22 is driven to move upwards by the punch 21, the piston rod of the cylinder 3 extends at the moment, the upper end of the workpiece is driven to extend out of the positioning hole 171, and the workpiece can be blanked at the moment. The specific embodiments are only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a high accuracy cotter way adds clamping apparatus which characterized in that: including mount pad (1), mount pad (1) is connected with a plurality of sets of fluting mechanism (2) of processing keyway, and the work piece passes mount pad (1) and is located between fluting mechanism (2), fluting mechanism (2) is including being used for grooved drift (21) and drive drift (21) towards drive block (22) that the work piece removed, drive block (22) slide with mount pad (1) and be connected, drive block (22) slide from top to bottom along mount pad (1) and its upper end is higher than the up end of mount pad (1), first wedge face (221) have all been seted up to drive block (22) lower extreme, the one end tilt up that first wedge face (221) is close to the work piece, the one end butt that the work piece was kept away from to first wedge face (221) and drift (21).

2. The high-precision pin slot machining clamp of claim 1, is characterized in that: drive groove (222) have all been seted up to drift (21) lower extreme, mount pad (1) all is connected with butt piece (14), butt piece (14) are inserted and are arranged in drive groove (222), all be provided with spring (15) that drive drift (21) moved towards the direction of keeping away from the work piece in drive groove (222), the terminal surface butt of the work piece is kept away from to the one end of spring (15) and butt piece (14), the other end and the lateral wall butt of drive groove (222) towards the work piece of spring (15).

3. The high-precision pin slot machining clamp of claim 2, is characterized in that: spacing groove (223) have all been seted up to drive block (22) upper end, the lateral wall that the work piece was kept away from in spacing groove (223) drive block (22) runs through, mount pad (1) upper end all can be dismantled and be connected with stopper (16), the one end of stopper (16) is inserted respectively and is arranged in spacing groove (223), when drive block (22) do not drive drift (21) and move towards the work piece, terminal surface and spacing groove (223) up end butt under stopper (16).

4. The high-precision pin slot machining clamp of claim 1, is characterized in that: the utility model discloses a punch press, including mount pad (1), guide sleeve (17), locating hole (171), guide sleeve (17), connecting hole (173) that have a plurality of and locating hole (171) intercommunication are run through to the lateral wall circumference of guide sleeve (17), the one end of drift (21) is passed through connecting hole (173) and is inserted in locating hole (171), can dismantle in mounting hole (13) and be connected with guide sleeve (17) that lead to the work piece, guide sleeve (17) coaxial run through have hold work piece locating hole (171).

5. The high-precision pin slot machining clamp of claim 4, is characterized in that: and a second wedge-shaped surface (172) is arranged at an opening at the upper end of the positioning hole (171).

6. The high-precision pin slot machining clamp of claim 5, wherein: the lower end of the mounting seat (1) is connected with a cylinder (3) for driving a workpiece to move upwards, and a piston rod of the cylinder (3) is connected with the workpiece.

7. The high-precision pin slot machining clamp of claim 6, is characterized in that: the piston rod of cylinder (3) is connected with adjustment mechanism (4) of adjusting the work piece position, adjustment mechanism (4) include regulation seat (41) be connected with the piston rod of cylinder (3), regulating block (43) be connected with the work piece and adjusting screw rod (42) of adjusting regulating block (43) position, adjusting screw rod (42) and regulation seat (41) threaded connection, adjusting screw rod (42) are kept away from the one end and the regulating block (43) fixed connection of regulating seat (41).

8. The high-precision pin slot machining clamp of claim 7, is characterized in that: the adjusting screw rod (42) is in threaded connection with an adjusting nut (44), and the lower end of the adjusting nut (44) is abutted to the upper end of the adjusting seat (41).