CN215391934U

CN215391934U - Directional truckle support punching device

Info

Publication number: CN215391934U
Application number: CN202023275882.2U
Authority: CN
Inventors: 韩国强
Original assignee: Shanghai Carthane Polyurethane Co ltd
Current assignee: Shanghai Carthane Polyurethane Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-01-04
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a directional caster bracket punching device, which comprises: the punching device comprises an upper substrate, a lower substrate, a guide sleeve, a guide pillar, an upper fixing plate, first rubber, a pressing plate, a pressing block, a bottom hole punching head, a bottom hole punching sleeve fixing seat, a sliding seat, a shaft hole punching head, second rubber, a guide plate and a shaft hole punching sleeve fixing seat. The punching device for the directional caster wheel bracket provided by the utility model can simultaneously punch out the bottom hole and the shaft hole on the directional caster wheel bracket at one time, improves the processing efficiency of the bottom hole and the shaft hole on the directional caster wheel bracket and effectively ensures the hole site precision.

Description

Directional truckle support punching device

Technical Field

The utility model relates to a punching device, in particular to a directional caster bracket punching device which can be used for punching holes on a directional caster bracket.

Background

The directional caster is assembled by a directional caster bracket, a single wheel, a bolt and a nut. As shown in fig. 1, the caster bracket 50 has a bottom plate 51 and two side plates 52 symmetrically disposed on both sides of the bottom plate, wherein the bottom plate 51 is provided with a bottom hole 53, and the two side plates 52 are respectively provided with a shaft hole 54. The bottom hole 53 is a vertically oriented through hole for mounting the directional caster on the associated facility. The shaft hole 54 is a horizontally through hole for mounting a single wheel. The positional accuracy of the shaft hole 54 and the bottom hole 53 affects the accuracy of the assembled directional caster. If the positional accuracy of the shaft hole 54 and the bottom hole 53 is poor, the relevant facilities for mounting the caster are not stable, and the normal use of the facilities is affected by shaking during movement. In the prior art, the shaft hole 54 and the bottom hole 53 are usually punched step by step, and the hole position of the caster bracket 50 is deviated by the step punching, which results in poor positional accuracy of the shaft hole 54 and the bottom hole 53.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a punching device for a directional caster bracket, which is arranged on a press machine and can simultaneously punch a bottom hole and a shaft hole on the directional caster bracket at one time and effectively ensure the hole site precision.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a directional caster bracket punching apparatus, comprising: the device comprises an upper substrate, a lower substrate, a guide sleeve, a guide pillar, an upper fixing plate, first rubber, a pressing plate, a pressing block, a bottom hole punch, a bottom hole punching sleeve fixing seat, a sliding seat, a shaft hole punch, second rubber, a guide plate and a shaft hole punching sleeve fixing seat;

the guide sleeve and the guide pillar are connected to form a telescopic structure capable of sliding relatively, and the upper substrate and the lower substrate are connected through the telescopic structure, so that the upper substrate and the lower substrate can move relatively in the vertical direction; the upper fixing plate is fixedly connected with the upper base plate, the first rubber is fixedly connected with the lower end of the upper fixing plate, and the pressing plate is fixedly connected with the lower end of the first rubber; the upper end of the pressing block is fixedly connected with the upper substrate, and the lower end of the pressing block contracts to form first inclined planes which are symmetrical on two sides; the bottom hole punch is vertically arranged, and the upper end of the bottom hole punch is fixedly arranged on the upper fixing plate; the upper fixing plate, the first rubber and the pressing plate are provided with first through holes which are aligned, and the bottom hole punch is vertically inserted into the first through holes;

the bottom hole punching sleeve fixing seat is fixedly arranged at the upper end of the lower base plate and is used for placing a bottom plate of the directional caster bracket; the upper surface of the bottom hole punching sleeve fixing seat is provided with a vertical first type hole, the first type hole is positioned under the bottom hole punching head, a bottom hole punching sleeve is arranged in the first type hole, and the inner diameter size of the bottom hole punching sleeve is matched with the outer diameter size of the bottom hole punching head so that the bottom hole punching head can be vertically inserted into the bottom hole punching sleeve; the bottom hole punch is matched with the bottom hole punching sleeve and is used for punching a bottom hole of the directional caster bracket;

two symmetrically-installed sliding seats are arranged right below the pressing block, second inclined planes are arranged at the opposite ends of the two sliding seats, and the second inclined planes are matched with the first inclined planes; when the pressing block is pressed down to be in contact with the two sliding seats, the pressing block continues to press down to enable the two sliding seats to respectively slide towards two sides and be far away from each other by means of relative sliding of the first inclined surface along the second inclined surface; the sliding directions of the two sliding seats are defined, one end close to the pressing block is a near end, and the other end far away from the pressing block is a far end; the far ends of the two sliding seats are respectively and symmetrically provided with a shaft hole punch, second rubber, a guide plate and a shaft hole punch sleeve fixing seat from near to far; the shaft hole punch is horizontally arranged, and the near end of the shaft hole punch is fixedly connected with the far end of the sliding seat; the guide plate is fixedly connected with the lower substrate, the shaft hole punching sleeve fixing seat is fixedly connected with the lower substrate, and the far end of the second rubber is fixed at the near end of the guide plate; the second rubber and the guide plate are provided with second through holes which are horizontally aligned, and the shaft hole punch is horizontally inserted into the second through holes;

a gap for inserting a side plate of the directional caster bracket is formed between the shaft hole punching sleeve fixing seat and the guide plate; the shaft hole punching sleeve fixing seat is provided with a second molded hole, the second molded hole is aligned with the second through hole, a shaft hole punching sleeve is arranged in the second molded hole, and the inner diameter size of the shaft hole punching sleeve is matched with the outer diameter size of the shaft hole punching head, so that the shaft hole punching head can be horizontally inserted into the shaft hole punching sleeve; the shaft hole punch is matched with the shaft hole punch sleeve and used for punching a shaft hole of the directional caster bracket;

when the pressing block is pressed down to enable the two sliding seats to slide towards two sides and be far away from the two sliding seats, the bottom hole punch punches the bottom hole and simultaneously the shaft hole punch punches the shaft hole.

Specifically, the guide sleeve is fixedly connected with the upper substrate, and the guide pillar is fixedly connected with the lower substrate.

Specifically, the upper fixing plate is fixedly connected with the upper substrate through a first pin and/or a second screw. Preferably, a backing plate is further installed between the upper fixing plate and the upper substrate, and the upper fixing plate, the backing plate and the upper substrate are fixedly connected through a first pin and/or a second screw.

Specifically, the upper end of the pressing block is fixedly connected with the base plate through a first screw. The upper end of the pressing block is indirectly fixedly connected with the upper substrate through the backing plate and the first screw.

Specifically, the upper fixing plate, the first rubber and the pressing plate are provided with aligned central holes, and the pressing block is vertically inserted into the central holes. In addition, the bottom hole punching fixed seat and the directional caster bracket also have aligned central holes. The pressing block can be inserted into the bottom hole punching sleeve fixing seat and the central hole of the directional caster bracket in a penetrating mode when pressed downwards.

Specifically, the size of the lower end of the pressing block is uniformly reduced to form an inclined plane inclined towards the middle.

Specifically, the upper end of the bottom hole punch abuts against the lower surface of the base plate, and the upper end of the bottom hole punch is clamped between the base plate and the upper fixing plate to be fixed. And the lower end of the bottom hole punch is flush with or retracted into the lower surface of the pressing plate compared with the lower surface of the pressing plate.

Specifically, the number of the bottom hole punches is four.

Specifically, the upper fixing plate, the first rubber and the pressing plate are fixedly connected through a third screw.

Specifically, the third screw vertically penetrates through the upper base plate, the upper fixing plate and the first rubber, and the lower end of the third screw is fixedly connected with the pressing plate. The nut of the third screw is pressed on the upper surface of the backing plate.

Specifically, the bottom hole punching fixed seat is fixedly connected with the lower substrate through a sixth screw and/or a fourth pin.

Specifically, the near end of the shaft hole punch is fixedly connected with the far end of the sliding seat through a threaded sleeve;

specifically, the lower base plate and the guide plate are fixedly connected through a fifth screw and/or a third pin.

In particular, corresponding guide rails are arranged in the sliding direction of the slide. The guide rail is mounted on the guide plate. And the guide rail, the guide plate and the lower substrate are simultaneously fixed by the fifth screw. And the guide rail, the guide plate and the lower substrate are simultaneously fixed by the third pin.

Specifically, the shaft hole punching sleeve fixing seat is fixedly connected with the lower base plate through a fourth screw and/or a second pin.

The utility model provides a punching device for a directional caster bracket, which can simultaneously punch out a bottom hole and a shaft hole on the directional caster bracket at one time, improve the processing efficiency of the bottom hole and the shaft hole on the directional caster bracket and effectively ensure the hole site precision. The utility model also provides a processing method for simultaneously punching the bottom hole and the shaft hole on the directional caster bracket at one time by using the device.

Drawings

Fig. 1 is a schematic structural view of a conventional caster bracket.

Fig. 2A is a schematic structural view of an embodiment of the punching device for a directional caster bracket of the present invention, showing a front view of the device.

Fig. 2B is a top view of the directional caster bracket punching apparatus of fig. 2A.

Fig. 3A is a sectional view taken along line a-a of fig. 2B.

Fig. 3B is a sectional view taken along line B-B of fig. 3A.

Fig. 3C is a cross-sectional view taken along line C-C of fig. 3A.

Fig. 4 is a left side view of fig. 3A.

Fig. 5 shows the state where the directional caster bracket punching apparatus of the present invention is installed on a press machine to be opened.

Fig. 6 shows a state in which the directional caster bracket punching apparatus of the present invention is mounted on a press machine to be closed and punches the bottom hole and the shaft hole of the directional bracket.

Fig. 7 is an exploded view of the directional caster bracket punching apparatus of the present invention.

Description of the symbols in the drawings:

1 an upper substrate;

2, guiding a sleeve;

3, pressing a plate;

4 a first rubber;

5 a first pin;

6, fixing a plate;

7, a base plate;

8 a first screw;

9, briquetting;

10 a second screw;

11 bottom hole punch;

12 a third screw;

13 lower substrate;

14 guide pillars;

15 a fourth screw;

16 a second pin;

17, punching a fixed seat in the shaft hole;

punching a sleeve in an 18-shaft hole;

19 a guide plate;

20 a second rubber;

21, a threaded sleeve;

a 22-shaft hole punch;

23 a slide carriage;

24 a fifth screw;

25 a third pin;

26 a guide rail;

27 a fourth pin;

28 a sixth screw;

29 punching a bottom hole to sleeve the fixed seat;

punching a 30-bottom hole;

31 a first inclined surface;

32 a second bevel;

33 a first via hole;

34 a second via hole;

35 a first type of hole;

36 second type hole

37 a central aperture;

50 a directional caster bracket;

51 a base plate;

52 side plates;

53 bottom hole;

54 shaft hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example one

As shown in fig. 2A-7, a directional caster bracket punching apparatus is provided, which mainly comprises: the device comprises an upper substrate 1, a lower substrate 13, a guide sleeve 2, a guide pillar 14, an upper fixing plate 6, first rubber 4, a pressing plate 3, a pressing block 9, a bottom hole punch 11, a bottom hole punching sleeve fixing seat 29, a sliding seat 23, a shaft hole punch 22, second rubber 20, a guide plate 19 and a shaft hole punching sleeve fixing seat 17.

The guide sleeve 2 and the guide post 14 are connected to form a telescopic structure capable of sliding relatively, and the upper substrate 1 and the lower substrate 13 are connected through the telescopic structure, so that the upper substrate 1 and the lower substrate 13 can perform relative telescopic motion in the vertical direction. The upper fixing plate 6 is directly or indirectly fixedly connected with the upper substrate 1, the first rubber 4 is fixedly connected with the lower end of the upper fixing plate 6, and the pressing plate 3 is fixedly connected with the lower end of the first rubber 4; the upper end of the pressing block 9 is directly or indirectly fixedly connected with the upper substrate 1, and the lower end of the pressing block 9 contracts to form first inclined planes 31 which are symmetrical on two sides; the bottom hole punch 11 is vertically arranged, and the upper end of the bottom hole punch 11 is fixedly arranged on the upper fixing plate 6; the upper fixing plate 6, the first rubber 4 and the pressing plate 3 are provided with first through holes 33 which are aligned, and the bottom hole punch 11 is vertically inserted into the first through holes 33;

the bottom hole punching sleeve fixing seat 29 is fixedly installed at the upper end of the lower base plate 13, the bottom hole punching sleeve fixing seat 29 is used for placing the directional caster bracket 50, and the bottom plate 51 of the directional caster bracket 50 is placed on the upper surface of the bottom hole punching sleeve fixing seat 29. The upper surface of the bottom hole punching sleeve fixing seat 29 is provided with a vertical first type hole 35, the first type hole 35 is positioned under the bottom hole punch 11, a bottom hole punching sleeve 30 is installed in the first type hole 35, and the inner diameter size of the bottom hole punching sleeve 30 is matched with the outer diameter size of the bottom hole punch 11 so that the bottom hole punch 11 can be vertically inserted into the bottom hole punching sleeve 30; the bottom hole punch 11 is matched with the bottom hole punching sleeve 30 to punch out the bottom hole 53 of the directional caster bracket 50;

two symmetrically-installed sliding seats 23 are arranged right below the pressing block 9, the opposite ends of the two sliding seats 23 are provided with second inclined planes 32, and the second inclined planes 32 are matched with the first inclined planes 31. When the press block 9 is pressed down to be in contact with the two sliding seats 23, the press block 9 continues to be pressed down to enable the two sliding seats 23 to respectively slide away and separate towards two sides by means of relative sliding of the first inclined surface 31 along the second inclined surface 32. It is defined that in the sliding direction of the two sliding seats 23, one end of each component close to the pressing block 9 is a near end, and one end of each component far away from the pressing block 9 is a far end. At the far ends of the two sliding seats 23, a shaft hole punch 22, a second rubber 20, a guide plate 19 and a shaft hole punch sleeve fixing seat 17 are symmetrically arranged from near to far respectively. The shaft hole punch 22 is horizontally arranged, and the near end of the shaft hole punch 22 is fixedly connected with the far end of the sliding seat 23; the guide plate 19 is fixedly connected with the lower base plate 13, the shaft hole punching fixing seat 17 is fixedly connected with the lower base plate 13, and the second rubber 20 is fixed on the guide plate 19. The second rubber 20 and the guide plate 19 are provided with second through holes 32 which are horizontally aligned, and the shaft hole punch 22 is horizontally inserted into the second through holes 32;

wherein, the side plate 52 of the directional caster bracket 50 is inserted between the shaft hole punching sleeve fixing seat 17 and the guide plate 19. The shaft hole punching sleeve fixing seat 17 is provided with a second die hole 36, the second die hole 36 is aligned with the second through hole 34, a shaft hole punching sleeve 18 is installed in the second die hole 36, and the inner diameter size of the shaft hole punching sleeve 18 is matched with the outer diameter size of the shaft hole punching head 22, so that the shaft hole punching head 22 can be horizontally inserted into the shaft hole punching sleeve 18; the shaft hole punch 22 is matched with the shaft hole punch sleeve 18 for punching the shaft hole 54 of the directional caster bracket 50;

the height of the pressing block 9 is matched with the lengths of the bottom hole punch 11 and the shaft hole punch 22, so that when the pressing block 9 is pressed down to enable the two sliding seats 23 to respectively slide away towards two sides, the bottom hole punch 11 punches the bottom hole 53 and the shaft hole punch 22 simultaneously punches the shaft hole 54.

The directional caster bracket punching device provided by the utility model realizes simultaneous punching of the bottom hole 53 and the shaft hole 54 on the directional caster bracket 50 at one time, improves the processing efficiency of the bottom hole 53 and the shaft hole 54 of the directional caster bracket 50, and effectively ensures the precision of two hole positions.

Fig. 2A is a front view, in which the guide sleeve 2 and the guide post 14 are connected to form a telescopic structure. The guide sleeve 2 and the guide post 14 are vertically arranged, and the guide sleeve 2 is positioned right above the guide post 14. The upper end of the guide sleeve 2 is fixedly connected with the upper substrate 1, and the lower end of the guide post 14 is fixedly connected with the lower substrate 13. The guide sleeve 2, the guide post 14, the upper substrate 1 and the lower substrate 13 constitute a basic frame of the directional caster bracket punching device of the present invention, and other components of the directional caster bracket punching device are basically located between the upper substrate 1 and the lower substrate 13. Fig. 2B is a top view of fig. 2A, mainly showing the upper surface of the upper substrate 1. The positions of the first pin 5, the first screw 8, the second screw 10 and the third screw 12 are shown on the upper surface of the upper substrate 1.

As shown in fig. 3A, which is a cross-sectional view taken along line a-a in fig. 2B. The upper fixing plate 6 is fixedly connected with the upper base plate 1 through a first pin 5 and a second screw 10, and a backing plate 7 is installed between the upper fixing plate 6 and the upper base plate 1 for separation. The upper fixing plate 6, the backing plate 7 and the upper base plate 1 are fixedly connected through a first pin 5 and a second screw 10. In other simple alternative, the upper fixing plate 6 may be directly fixed to the lower surface of the upper substrate 1. The upper end of the pressing block 9 is fixedly connected with the backing plate 7 through the first screw 8, and the backing plate 7 and the first screw 8 are used for realizing indirect fixed connection with the upper base plate 7. In other simple alternatives, the upper fixing plate 6 may be directly fixed to the lower surface of the upper substrate 1 by the first screws 8. The lower end of the upper fixing plate 6 is also sequentially fixedly provided with a first rubber 4 and a pressing plate 3. The upper fixing plate 6, the first rubber 4 and the pressure plate 3 are fixedly connected through a third screw 12. The third screw 12 vertically penetrates through the upper base plate 1, the backing plate 7, the upper fixing plate 6 and the first rubber 4, and the lower end of the third screw 12 is fixedly connected with the pressing plate 3, for example, fixed by a threaded structure. The cap of the third screw 12 is pressed against the upper surface of the shim plate 7.

As shown in fig. 3A, the upper end of the bottom-hole punch 11 is clamped and fixed between the shim plate 7 and the upper fixing plate 6, and the upper end of the bottom-hole punch 11 abuts against the lower surface of the shim plate 7. The lower end of the bottom hole punch 11 is flush with or retracted into the lower surface of the pressure plate 3 compared with the lower surface of the pressure plate 3, i.e. the lower end of the bottom hole punch 11 does not protrude out of the lower surface of the pressure plate 3. From fig. 3A in combination with fig. 7, the number of the bottom-hole punches 11 is four and symmetrically distributed. The four bottom hole punches 11 are vertically inserted into the aligned first through holes 33 of the upper fixing plate 6, the first rubber 4 and the pressing plate 3 from top to bottom. Referring to fig. 3A and fig. 7, the position right below the first through hole 33 corresponds to the first type hole 35 on the bottom hole punch holder 29, and the bottom hole punch 30 is installed in the first type hole 35. The bottom plate 51 of the directional caster bracket 50 is placed on the table top of the bottom hole punching sleeve fixing seat 29, the bottom hole punching head 11 is aligned with the bottom hole punching sleeve 30, the first rubber 4 is compressed when being pressed down, the bottom hole punching head 11 extends out and punches a bottom hole 53 on the bottom plate 51, and the state of punching the bottom hole 53 is shown in fig. 6. After the punching is finished, the bottom hole punch 11 can be easily and quickly pulled out from the bottom hole punching sleeve 30 and the bottom hole 53 by utilizing the deformation recovery of the first rubber 4, and the bottom hole punch 11 retracts. The first rubber 4 plays a role of rapidly pulling out the punch and protecting the punch.

As shown in fig. 3A, the two sides of the lower end of the pressing block 9 are provided with symmetrical first inclined surfaces 31. The first inclined surfaces 31 are two symmetrical inclined surfaces inclined toward the center and formed by uniformly reducing the size of the lower end of the pressing block 9. The lower end of the pressing block 9 is provided with two sliding seats 23 which are symmetrically distributed, and the opposite surfaces of the two sliding seats 23 are provided with symmetrical second inclined surfaces 32. The two second inclined surfaces 32 may be adjacent to each other to form a V-shape. The first inclined surface 31 and the second inclined surface 32 are completely matched in shape. When the press block 9 is pressed down to contact the two sliding seats 23, the first inclined surface 31 is engaged with the second inclined surface 32, and the press block 9 is pressed down continuously to push the two sliding seats 23 away from each other, so that the two sliding seats 23 slide and are far away from each other. A shaft hole punch 22 horizontally arranged is fixedly connected to the far end (the end far away from the pressing block) of the sliding seat 23. The proximal end of the axial punch 22 is secured to the distal end of the slide 23 by a threaded sleeve 21. At the far end of the shaft hole punch 22, a second rubber 20, a guide plate 19 and a shaft hole punch sleeve fixing seat 17 are further arranged in sequence from near to far, the second rubber 20 and the guide plate 19 are provided with a second through hole 32 which is horizontally aligned, and the shaft hole punch 22 is horizontally inserted into the second through hole 32. The distal end of the shaft hole punch 22 is flush with or recessed within the second through hole 32 relative to the distal end of the guide plate 19, i.e., the distal end of the shaft hole punch 22 does not protrude beyond the distal end of the guide plate 19. Referring to fig. 3A and fig. 7, the shaft hole punch holder 17 is provided with a second die hole 36, the second die hole 36 is aligned with the second through hole 34, and the shaft hole punch 18 is installed in the second die hole 36. The side plate 52 of the directional caster bracket 50 is placed between the shaft hole punching sleeve fixing seat 17 and the guide plate 19, the slide seat 23 and the shaft hole punching head 22 are pushed to move towards two sides when the pressing block 9 is pressed down, the far end of the shaft hole punching head 22 is aligned with the shaft hole punching sleeve 18, the second rubber 20 is compressed, the shaft hole punching head 22 extends out and punches a shaft hole 54 on the side plate 52, and the state of punching the shaft hole 54 is shown in fig. 6. After the punching is completed, the shaft hole punch 22 can be easily and quickly pulled out from the shaft hole punch sleeve 18 and the shaft hole 54 by utilizing the deformation recovery of the second rubber 20, and the shaft hole punch 22 is retracted to the original position. The secondary rubber 20 functions to quickly extract the punch and protect the punch.

FIG. 3B is a cross-sectional view taken along line B-B of FIG. 3A, showing the bottom punch holder 29 and a portion of the lower substrate 13. The pressing block 9 is located at the center, and the four bottom hole punching sleeves 30 are symmetrically arranged at four corners of the table top of the bottom hole punching sleeve fixing seat 29. The two sides of the table-board of the bottom hole punching sleeve fixing seat 29 show the shaft hole punching sleeve fixing seat 17, and a gap exists between the shaft hole punching sleeve fixing seat 17 and the two sides of the table-board of the bottom hole punching sleeve fixing seat 29, and the gap is used for placing two side plates 52 of the directional caster bracket 50.

Fig. 3C is a cross-sectional view taken along line C-C of fig. 3A, showing a partial configuration of the pressing plate 3 and the upper substrate 1. The pressing block 9 is located at the center of the pressing plate 3 and the upper substrate 1.

Fig. 4 is a left side view of fig. 3A. The lower end of the upper base plate 1 is sequentially provided with a backing plate 7, an upper fixing plate 6, first rubber 4 and a pressing plate 3 from top to bottom. The upper end of the pressing block 9 is fixedly connected with the backing plate 7. The upper end of the lower base plate 13 is provided with a bottom hole punching fixed seat 29. The bottom plate 51 of the directional caster bracket 50 is pressed between the pressing plate 3 and the bottom hole punching fixed seat 29. As can be seen from fig. 7, the upper fixing plate 6, the first rubber 4 and the pressing plate 3 have aligned central holes 37, and the pressing block 9 is vertically inserted into the central holes 37. In addition, the bottom hole punch holder 29 and the directional caster bracket 50 also have aligned center holes 37. When the pressing block 9 is pressed down, the lower end of the pressing block 9 extends into the bottom hole punching sleeve fixing seat 29 and the central hole 37 of the directional caster bracket 50 and is pressed against the sliding seat 23. Guide rails 26 are attached to both sides of the slide carriage 23 in the sliding direction. Guide rails 26 are mounted on the guide plate 19. The lower end of the guide plate 19 is attached to the lower substrate 13.

Fig. 7 shows that the bottom hole punches 11 are four in number and symmetrically distributed. As shown in fig. 3A and 7, the bottom hole punch holder 29 is fixedly connected to the lower substrate 13 by a sixth screw 28 and a fourth pin 27. The proximal end of the shaft hole punch 22 and the distal end of the slide 23 are fixed by a threaded sleeve 21. The lower base plate 13 and the guide plate 19 are fixedly connected by a fifth screw 24 and a third pin 25. The fifth screw 24 and the third pin 25 fix the guide rail 26, the guide plate 19, and the lower substrate 13 at the same time. The shaft hole punching sleeve fixing seat 17 is fixedly connected with the lower base plate 13 through a fourth screw 15 and a second pin 16.

The working principle and the method of the directional caster bracket punching device are as follows:

the directional caster bracket punching device is installed on a press machine, the upper substrate 1 is fixed on a slide block of the press machine, and the lower substrate 13 is fixed on a workbench of the press machine.

When the press slide block moves upwards, the upper base plate 1 is driven to move upwards, and the guide sleeve 2, the pressing plate 3, the first rubber 4, the first pin 5, the upper fixing plate 6, the backing plate 7, the first screw 8, the pressing block 9, the second screw 10, the bottom hole punch 11 and the third screw 12 which are connected with the lower base plate 1 move upwards together. The orientation support to be punched is placed on the bottom hole punch holder 29 in the state shown in fig. 5.

The press ram moves downwards, the press plate 3 first contacts the orienting support and the first rubber 4 starts to compress. The slide block of the press continues to move downwards, the two inclined planes of the press block 9 push the two slide seats 23 and drive the shaft hole punch 22 and the threaded sleeve 21 to respectively move towards two sides, the second rubber 20 is compressed, and the shaft hole punch 22 punches a hole on the workpiece of the directional support; at the same time, the pilot carrier workpiece is also punched by the bottom punch 11. When the press slide moves down to the lower limit, the shaft hole and the bottom hole of the directional bracket are completely punched, and waste materials generated by punching respectively enter the shaft hole punching sleeve 18 and the bottom hole punching sleeve 30, and the state is shown in fig. 6.

The slide block of the press machine moves upwards, the second rubber 20 elastically returns to push the slide seat 23 to reset, the threaded sleeve 21 and the shaft hole punch 22 are driven to reset together, the guide plate 19 blocks the workpiece, and the shaft hole punch 22 is separated from the workpiece; at the same time, the first rubber 4 elastically returns to press the press plate 3 against the work and the bottom-hole punch 11 is released from the work. The press slide continues to move upwards, and the backing plate 7 drives the third screw 12 and the pressing plate 3 to move upwards. The press ram is moved up to the limit and the caster bracket punch apparatus of the present invention is fully opened and returned to the position shown in figure 5. At the moment, the punched directional bracket workpiece can be taken out and then the next workpiece is put in for further processing.

In summary, the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A directional caster bracket punching device, comprising: the device comprises an upper substrate, a lower substrate, a guide sleeve, a guide pillar, an upper fixing plate, first rubber, a pressing plate, a pressing block, a bottom hole punch, a bottom hole punching sleeve fixing seat, a sliding seat, a shaft hole punch, second rubber, a guide plate and a shaft hole punching sleeve fixing seat;

2. The apparatus for punching a directional caster bracket of claim 1, wherein said guide bush is fixedly connected to said upper base plate, and said guide post is fixedly connected to said lower base plate.

3. The directional caster bracket punching apparatus of claim 1, wherein a shim plate is further installed between the upper fixing plate and the upper base plate.

4. The directional caster bracket punching apparatus according to claim 3, wherein the upper fixing plate, the pad plate, and the upper base plate are fixedly connected to each other by a first pin and/or a second screw.

5. The directional caster bracket punching apparatus of claim 3, wherein an upper end of the pressing block is fixedly connected to the pad by a first screw.

6. The directional caster bracket punching apparatus according to claim 1, wherein the upper fixing plate, the first rubber, and the pressing plate have aligned central holes, and the pressing block is vertically inserted into the central holes; the bottom hole punching sleeve fixing seat and the directional caster bracket also have aligned central holes; the pressing block can be inserted into the bottom hole punching sleeve fixing seat and the central hole of the directional caster bracket in a penetrating mode when pressed downwards.

7. The caster bracket punching apparatus of claim 1, wherein the bottom hole punches are four in number.

8. The directional caster bracket punching apparatus of claim 1, wherein the proximal end of the axial bore punch is fixedly connected to the distal end of the carriage by a threaded sleeve.

9. The directional caster bracket punching apparatus according to claim 1, wherein a corresponding guide rail is provided in a sliding direction of the carriage; the guide rail is mounted on the guide plate.

10. The directional caster bracket punching device according to claim 1, wherein the shaft hole punch holder is fixedly connected to the lower base plate by a fourth screw and/or a second pin.