CN112828127A - Caster bracket punching device and punching method - Google Patents

Caster bracket punching device and punching method Download PDF

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Publication number
CN112828127A
CN112828127A CN202011609905.0A CN202011609905A CN112828127A CN 112828127 A CN112828127 A CN 112828127A CN 202011609905 A CN202011609905 A CN 202011609905A CN 112828127 A CN112828127 A CN 112828127A
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CN
China
Prior art keywords
punch
punching
wedge
hole
fixed seat
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Pending
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CN202011609905.0A
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Chinese (zh)
Inventor
韩国强
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Shanghai Carthane Polyurethane Co ltd
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Shanghai Carthane Polyurethane Co ltd
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Application filed by Shanghai Carthane Polyurethane Co ltd filed Critical Shanghai Carthane Polyurethane Co ltd
Priority to CN202011609905.0A priority Critical patent/CN112828127A/en
Publication of CN112828127A publication Critical patent/CN112828127A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/243Perforating, i.e. punching holes in profiles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention discloses a punching device for a caster bracket, which comprises: the device comprises an upper substrate, a wedge, a guide plate, a fixed seat, a punching sleeve, a punch, a slant slide block and a lower substrate; the two wedges are symmetrically arranged, the upper ends of the wedges are connected to the upper substrate, and the lower ends of the wedges are provided with inner inclined planes which incline towards the inner sides; two symmetrically-installed inclined sliding blocks are arranged right below the inclined wedge; the left side and the right side of the fixed seat are respectively and symmetrically provided with a guide plate, a punch and an inclined slide block from near to far; when the upper base plate is pressed downwards, the inclined wedge pushes the two inclined slide blocks to be close to the middle, and the two punching heads are respectively inserted into the two punching sleeves to punch two shaft holes. The invention also discloses a processing method for simultaneously punching two shaft holes on the movable bracket at one time by using the caster bracket punching device. The punching device and the processing method for the caster bracket provided by the invention can realize one-time symmetrical punching of two shaft holes on the movable bracket, and effectively ensure the precision of the hole positions.

Description

Caster bracket punching device and punching method
Technical Field
The invention relates to a punching device, in particular to a caster bracket punching device which can be used for punching holes on a universal caster bracket.
Background
The universal caster is assembled by a movable bracket, a single wheel and the like. As shown in fig. 1, the two side walls 29 of the movable bracket 28 are provided with symmetrical shaft holes 30 for mounting a single wheel. The position precision of the shaft hole 30 influences the precision of the movable caster after assembly, when the position precision of the shaft hole 30 is poor, the relevant facilities for installing the movable caster are not stable, and the movable caster shakes to incline or even overturn during movement, so that the normal use of the facilities is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a punching device for a caster bracket, which is arranged on a press machine and can realize one-time punching of two shaft holes on a movable bracket and effectively ensure hole site precision.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a caster bracket punching device, comprising: the device comprises an upper substrate, a wedge, a guide plate, a fixed seat, a punching sleeve, a punch, a slant slide block and a lower substrate;
the upper substrate and the lower substrate are vertically opposite; the lower surface of the upper substrate is fixedly provided with two symmetrical wedges, the upper ends of the wedges are connected to the upper substrate, the outer sides of the lower ends of the wedges are longer than the inner sides, and inner inclined planes inclined towards the inner sides are formed;
the fixed seat is fixedly connected with the lower substrate; the left side and the right side of the fixed seat are respectively and symmetrically provided with a guide plate, a punch and an inclined slide block from near to far, one end close to the fixed seat is defined as a near end, and the other end far away from the fixed seat is defined as a far end; the guide plates are fixedly connected with the lower substrate, two symmetrical gaps are formed between the fixed seat and the guide plates on the left side and the right side of the fixed seat, and the two gaps are used for the two side walls of the movable support to be respectively inserted; the left side surface and the right side surface of the fixed seat are provided with symmetrical holes, and punching sleeves are arranged in the holes; the guide plate is provided with a first through hole which is horizontally arranged and penetrates through the near end and the far end of the guide plate, the first through hole is aligned with the profile hole, the punch is horizontally arranged, the far end of the punch is fixedly connected with the near end of the inclined sliding block, the near end of the punch is inserted into the first through hole, and the near end of the punch is flush with the near end of the guide plate or is retracted into the first through hole; the inner diameter of the punching sleeve is matched with the outer diameter of the punch, so that the punch can be horizontally inserted into the punching sleeve; the punch is sleeved with a spring;
the two inclined slide blocks are respectively positioned under the two inclined wedges; the two inclined sliding blocks are provided with outer inclined planes which are matched with inner inclined planes of the inclined wedges right above the outer inclined planes; when the two inclined wedges are pressed downwards until the inner inclined surfaces are contacted with the two inclined sliding blocks, the inclined wedges continue to press downwards to push the two inclined sliding blocks to slide from two sides to the middle respectively by utilizing the relative sliding of the inner inclined surfaces along the outer inclined surfaces, and the two punching heads are driven to be respectively inserted into the two punching sleeves to punch out the two shaft holes of the movable support.
Specifically, a wedge fixing seat is installed at the connecting part of the upper substrate and the wedge; the wedge fixing seat is provided with a through hole, the shape of the through hole is matched with the shape of the upper end of the wedge, the upper end of the wedge is inserted into the through hole, and the wedge fixing seat is fixedly connected with the upper substrate and used for fixing the position of the wedge.
Specifically, the upper end of the wedge is fixedly connected with the upper substrate through a first screw.
Specifically, the wedge fixing seat is fixedly connected with the upper substrate through a fifth screw.
Specifically, the fixing seat is fixedly connected with the lower substrate through a fourth screw and/or a third pin.
Specifically, the guide plate is fixedly connected with the lower substrate through a second screw and/or a first pin.
Specifically, the far end of the punch is fixedly connected with the near end of the inclined sliding block through a punch locking nut.
Specifically, the proximal end of the spring is in contact with the guide plate, and the distal end of the spring is in contact with the punch retaining nut.
Specifically, the spring is a disc spring.
Specifically, the inclined slide block is mounted on a guide rail, and the guide rail is fixedly mounted on the lower substrate.
Specifically, the guide rail is fixedly connected with the lower substrate through a third screw and/or a second pin.
Specifically, the punch moves along the sliding direction of the inclined slide block and is inserted into the punch sleeve through the first through hole.
Specifically, a limit screw is mounted on the guide rail and used for positioning the initial position of the inclined sliding block. When the spring pushes the inclined slide block towards two sides until the far end of the inclined slide block contacts the limiting screw, the initial position is reached.
Specifically, the movable support is mounted on the lower substrate through a positioning core.
In addition, the invention also provides a processing method for simultaneously punching two shaft holes on a movable bracket at one time by using the caster bracket punching device, which comprises the following steps:
fixedly mounting the upper substrate on a slide block of a press machine, and fixedly mounting the lower substrate on a workbench of the press machine; placing a movable support to be punched on a punching station to enable two side walls of the movable support to be respectively positioned in two symmetrical gaps formed between the fixed seat and the guide plates on the left side and the right side of the fixed seat; the press slide block moves downwards, the two inclined wedges press downwards to enable the two inclined slide blocks to slide from two sides to the middle fixed seat respectively, and the two punching heads punch two shaft holes in two side walls of the movable support in the horizontal direction respectively.
Specifically, in the downward movement process of the press slide block, the inner inclined plane of the inclined wedge contacts the outer inclined plane of the inclined slide block firstly; the press sliding block continues to move downwards, the inner inclined plane of the inclined wedge and the outer inclined plane of the inclined sliding block slide relatively, the two inclined sliding blocks are pushed and drive the punch to move towards the middle from two sides, and the near end of the punch extends out of the first through hole of the guide plate to punch a hole in the side wall of the movable support; when the press sliding block moves downwards to the lower limit, the shaft hole of the movable support is completely punched, and the punch is inserted into the punch sleeve in the profile hole of the fixed seat.
Specifically, after the shaft hole of the movable support is completely punched through, the press machine slide block moves upwards, the inner inclined plane and the outer inclined plane slide relatively, the spring pushes the inclined slide block and the punch to reset towards two sides, the guide plate blocks the side plate of the movable support, and the punch is separated from the shaft hole of the movable support.
Specifically, when the press slide block continues to move upwards for resetting, the inner inclined plane of the inclined wedge is separated from the outer inclined plane of the inclined slide block, the inclined slide block is reset to the initial position by the spring through elasticity, and the punch is reset to be flush with the near end of the guide plate or to be retracted into the first through hole of the guide plate; and taking out the movable support after punching, and then putting the movable support into the next movable support for continuous processing.
The invention provides a punching device for a caster bracket, which can realize symmetrical punching of two shaft holes on a movable bracket at one time and effectively ensure hole position precision. The invention also provides a processing method for punching the two shaft holes on the movable bracket at one time by using the device.
Drawings
FIG. 1 is a comparison of the unpunched and punched holes of a movable support.
Fig. 2A is a schematic structural view of a caster bracket punching device according to an embodiment of the present invention, showing a front view of the device in a closed state.
Fig. 2B is a left side view of the caster bracket punching apparatus of fig. 2A.
Fig. 2C is a bottom view of the upper base plate of the caster bracket punching apparatus of fig. 2A.
Fig. 2D is a top view of the lower base plate of the caster bracket punching apparatus of fig. 2C.
Fig. 3 is a front sectional view of the caster bracket punching apparatus of the present invention in an open state.
Fig. 4 is a side sectional view of the caster bracket punching apparatus of the present invention in an open state.
Fig. 5 is a front sectional view of the caster bracket punching apparatus of the present invention in a closed state.
Fig. 6 is an exploded view of the caster bracket punching apparatus of the present invention.
Description of the symbols in the drawings:
1 an upper substrate;
2, a wedge fixing seat;
3 a first screw;
4, a wedge;
5, fixing a base;
6, punching a sleeve;
7, a guide plate;
8, a spring;
9 punching head;
10, locking a nut by a punch;
11, an inclined slide block;
12, a slide rail;
13, a limit screw;
14 a second screw;
15 a first pin;
16 a second pin;
17 a third screw;
18 positioning the core;
19 a fourth screw;
20 a third pin;
21 a fifth screw;
22 lower substrate;
23 inner inclined plane;
24 outer inclined plane;
25 gaps;
a 26-type hole;
27 a first via hole;
28 a movable support;
29 side walls;
30 shaft holes.
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 to 6, there is a caster bracket punching apparatus comprising: the device comprises an upper substrate 1, a wedge 4, a fixed seat 5, a punching sleeve 6, a guide plate 7, a punch 9, a slant slide block 11 and a lower substrate 22.
The upper substrate 1 and the lower substrate 22 are vertically opposite to each other, two symmetrical wedges 4 are fixedly mounted on the lower surface of the upper substrate 1, the upper ends of the two wedges 4 are connected to the upper substrate 1, the outer sides of the lower ends of the two wedges 4 are longer than the inner sides, and inner inclined surfaces 23 inclined towards the inner sides are formed.
Wherein, fixing base 5 and infrabasal plate 22 fixed connection install baffle 7, drift 9, oblique slider 11 respectively symmetrically from near to far away in the left and right sides of fixing base 5, and the one end that is close to fixing base 5 of definition each component is the near-end, and the one end of keeping away from fixing base 5 is the distal end. The guide plate 7 is fixedly connected with the lower base plate 22, two symmetrical gaps 25 are formed between the fixed seat 5 and the guide plates 7 on the left and right sides of the fixed seat, and the two gaps 25 are used for inserting two side walls 29 of the movable bracket 28 respectively. The left side and the right side of the fixed seat 5 are provided with symmetrical holes 26, and the punching sleeves 6 are arranged in the holes 26. The guide plate 7 has a first through hole 27 horizontally disposed through the proximal and distal ends of the guide plate 7, and the first through holes 27 of the guide plates 7 on both sides are aligned with the shaped holes 26 on both left and right sides of the fixing base 5, respectively. The punch 9 is horizontally arranged, the far end of the punch 9 is fixedly connected with the near end of the inclined slide block 11, the near end of the punch 9 is inserted into the first through hole 27, and the near end of the punch 9 is flush with the near end of the guide plate 7 or is retracted into the first through hole 27; the inner diameter of the punching sleeve 6 is matched with the outer diameter of the punch 9, so that the punch 9 can be horizontally inserted into the punching sleeve 6; the punch 9 is sleeved with a spring 8.
Wherein, the two oblique sliding blocks 11 are respectively positioned under the two oblique wedges 4; the two inclined sliding blocks 11 are provided with outer inclined planes 24, and the outer inclined planes 24 are matched with the inner inclined planes 23 of the inclined wedges 4 right above the outer inclined planes 24; when the two wedges 4 are pressed downwards until the inner inclined surfaces 23 are contacted with the outer inclined surfaces 24 of the two inclined slide blocks 11, the wedges 4 are continuously pressed downwards to push the two inclined slide blocks 11 to respectively slide from two sides to the middle by utilizing the relative sliding of the inner inclined surfaces 23 along the outer inclined surfaces 24, and the two punch heads 9 are driven to be respectively inserted into the two punching sleeves 6 to punch out the two shaft holes 30 of the movable support 28.
According to the punching device for the caster wheel bracket, the two shaft holes 30 on the movable bracket 28 are punched out at one time by adopting a symmetrical mechanism, so that the precision of hole positions is effectively ensured.
As shown in fig. 2A, a front view of the caster bracket punching apparatus is shown in a closed state. The upper substrate 1 and the lower substrate 22 are horizontally disposed, and the upper substrate 1 is located right above the lower substrate 22. The upper end of the wedge 4 is fixedly connected with the lower surface of the upper substrate 1. Install slide wedge fixing base 2 at the position of being connected of last base plate 1 and slide wedge 4, slide wedge fixing base 2 has a through-hole, and the shape of this through-hole matches with the upper end shape of slide wedge 4, and the upper end of slide wedge 4 inserts in this through-hole, and slide wedge fixing base 2 and 1 fixed connection of last base plate are used for supplementary fixed slide wedge 4's position. The two wedges 4 are symmetrically installed, and the outer side of the lower end of the wedge 4 is longer than the inner side to form an inner inclined surface 23 which inclines inwards. An inclined slide block 11 is respectively arranged right below the lower ends of the two inclined wedges 4, the inclined slide blocks 11 are provided with outer inclined planes 24, and the outer inclined planes 24 are matched with the inner inclined planes 23. The lower substrate 22 is fixedly provided with a fixed seat 5, the fixed seat 5 is used as a symmetrical center, and the left side and the right side of the fixed seat are respectively and symmetrically provided with a guide plate 7, a punch 9 and an inclined slide block 11. A gap 25 for inserting the side wall 29 of the movable bracket 28 is formed between the fixed seat 5 and the two guide plates 7 on the left and right sides. The punch 9 is horizontally arranged, and the far end of the punch 9 is fixedly arranged at the near end of the inclined slide block 11 through a punch locking nut 10. A spring 8 is sleeved on the punch 9, and two ends of the spring 8 respectively contact the far end of the guide plate 7 and the near end of the punch locking nut 10.
As shown in fig. 2B, which is a side view of fig. 2A. Wherein, both sides at oblique slider 11 all are provided with corresponding slide rail 12, and the lower extreme fixed mounting of slide rail 12 is in infrabasal plate 22. The lower substrate 22 is provided with a fixing base 5.
As shown in fig. 2C, which is a bottom view of the upper substrate 1 of fig. 2A, the lower surface of the upper substrate 1 is mainly shown. Fig. 2D is a top view of the lower substrate 22 in fig. 2A, mainly showing the planar structure of the lower substrate 22, in which the shielding of the upper substrate 1 is removed. In fig. 2C and 2D, the wedge fixing base 2 is fixed to the lower surface of the upper substrate 1 by a fifth screw 21, and the wedge 4 is sleeved on the wedge fixing base 2. The wedges 4 on both sides are symmetrically distributed. The fixing base 5 is fixedly mounted on the lower base plate 22 through a fourth screw 19 and a third pin 20. The whole device is symmetrically distributed by taking the central axis of the fixed seat 5 as the center, and gaps 25 are formed between the fixed seat 5 and the guide plates 7 on the left side and the right side of the fixed seat. Both side walls 29 of the movable bracket 28 are inserted into the two gaps 25, respectively, and the side walls 29 inserted into the two gaps 25 are punched by the caster bracket punching device. The movable support 28 is matched with the positioning core 18 through the support positioning hole 31 and is arranged on the lower substrate 22, and the positioning core 18 can assist in fixing the position of the movable support 28, so that the punching precision is improved. The guide rail 12 is fixed to the lower base plate 22 by a third screw 17 and a second pin 16. And a limiting screw 13 is mounted on the guide rail 12, and the limiting screw 13 is used for positioning the initial position of the inclined sliding block 11. When the spring 8 pushes the inclined slide block 11 to both sides until the far end of the inclined slide block 11 contacts the limit screw 13, the initial position is reached.
Fig. 3 is a front sectional view of the caster bracket punching apparatus in an open state. In the figure, the upper end of the wedge 4 is fixed on the upper base plate 1 through the first screw 3, the outer side of the lower end of the wedge 4 is longer than the inner side to form an inner inclined surface 23 which inclines inwards, the lower end of the wedge 4 is aligned with the inclined slide block 11, the inclined slide block 11 is provided with an outer inclined surface 24, and the inner inclined surface 23 is matched with the outer inclined surface 24 in shape. The side wall 29 of the movable support 28 is inserted into the gap 25 between the fixed seat 5 and the guide plate 7, the side wall 29 is located between the punch 9 and the punch sleeve 6, and the punch 9 is aligned with the punch sleeve 6. The proximal end of the punch 9 is flush with the proximal end of the guide plate 7 or is recessed within the first through hole 27 of the guide plate 7. The punch head locking nut 10 is sleeved on the punch head 9, the far end of the punch head 9 is tightly pressed on the near end of the inclined slide block 11, and the punch head locking nut 10 is fixedly connected with the near end of the inclined slide block 11 through a thread structure. The guide plate 7 is fixedly connected with the lower base plate 22 through the second screws 14 and the first pins 15.
Fig. 4 is a side sectional view of the caster bracket punching device in an open state. In the figure, the wedge fixing base 2 is mounted to the lower surface of the upper substrate 1 by a fifth screw 21. The fixed seat 5 and the lower base plate 22 are fixedly connected through a fourth screw 19 and a third pin 20 which penetrate vertically at the same time. The movable support 28 can also be positioned and installed through the positioning core 18 and the lower substrate 22 by utilizing the support positioning hole 31, so that the position of the movable support 28 is fixed in an auxiliary manner, the accuracy of the station is improved, and the punching accuracy is improved.
Fig. 5 is a front sectional view of the caster bracket punching apparatus in a closed state. In the figure, wedge 4 is depressed until inner ramp 23 contacts outer ramp 24. By means of the relative sliding and extrusion of the inner inclined surface 23 along the outer inclined surface 24, the inclined wedge 4 is pressed downwards continuously to make the two inclined slide blocks 11 slide from two sides to the middle respectively and approach to the fixed seat 5 positioned in the middle of the two inclined slide blocks 11. The punch 9 fixedly arranged at the near end of the inclined slide block 11 moves from two sides to the middle along the horizontal direction, the punch 9 extends out of the guide plate 7, a shaft hole 30 is punched on a side wall 29 between the fixed seat 5 and the guide plate 7, and the punch 9 is inserted into the punching sleeve 6 of the fixed seat 5. At this time, the spring 8 on the punch 9 is in a compressed state.
The working principle and the method of the caster bracket punching device are as follows:
the caster bracket punching apparatus is mounted on a press machine, the upper substrate 1 is fixed to a slide of the press machine, and the lower substrate 22 is fixed to a table of the press machine.
When the press slide block moves upwards, the upper base plate 1 is driven to move upwards, and the upper base plate 1 drives the fifth screw 21, the wedge fixing seat 2, the first screw 3 and the wedge 4 to move upwards together. The movable support 28 to be punched is placed on the lower base plate 22 with the center plane of the movable support 28 being bored in the positioning core 18, as shown in fig. 3.
The press slide moves downwards, the inner inclined surface 23 of the wedge 4 presses the outer inclined surface 24 of the inclined slide block 11 to push the two inclined slide blocks 11 to move towards the middle of the device from two sides, the inclined slide block 11 pushes the punch 9 and drives the punch locking nut 10 to move towards the middle together, and the punch locking nut 10 enables the spring 8 to compress. The press ram continues to move downwards and the punch 9 punches through the two side walls 29 of the movable support 28. When the press slide moves down to the lower limit, the shaft hole 30 of the movable support 28 is completely punched, the waste materials generated by punching enter the punching sleeve 6, and the waste materials are separated from the punching sleeve 6 after accumulating a certain amount and fall through the material leakage hole of the guide plate 7, as shown in fig. 5.
The press slide moves upwards to drive the upper base plate 1 to move upwards, the upper base plate 1 drives the fifth screw 21, the wedge fixing seat 2, the first screw 3 and the wedge 4 to move upwards together, the spring 8 rebounds to recover deformation, the punch locking nut 10 is pushed, the inclined slide block 11 and the punch 9 are driven to move towards the two sides of the device from the middle, the guide plate 7 blocks the side wall 29 of the movable support 28, and the punch 9 is separated from the shaft hole 30. When the press slide continues to move upwards until the inner inclined surface 23 is separated from the outer inclined surface 24, the inclined slide blocks 11 are pushed by the springs 8 to be blocked by the limiting screws 13, the two inclined slide blocks 11 are restored to be at the left and right initial positions, and the punch 9 is restored to be level with the near end of the guide plate 7 or retracted into the first through hole 27 of the guide plate 7. The press ram moves up to the limit position, as shown in fig. 3, the punched movable support 28 is removed and the next workpiece is placed 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 (14)

1. A caster bracket punching device, comprising: the device comprises an upper substrate, a wedge, a guide plate, a fixed seat, a punching sleeve, a punch, a slant slide block and a lower substrate;
the upper substrate and the lower substrate are vertically opposite; the lower surface of the upper substrate is fixedly provided with two symmetrical wedges, the upper ends of the wedges are connected to the upper substrate, the outer sides of the lower ends of the wedges are longer than the inner sides, and inner inclined planes inclined towards the inner sides are formed;
the fixed seat is fixedly connected with the lower substrate; the left side and the right side of the fixed seat are respectively and symmetrically provided with a guide plate, a punch and an inclined slide block from near to far, one end close to the fixed seat is defined as a near end, and the other end far away from the fixed seat is defined as a far end; the guide plates are fixedly connected with the lower substrate, two symmetrical gaps are formed between the fixed seat and the guide plates on the left side and the right side of the fixed seat, and the two gaps are used for the two side walls of the movable support to be respectively inserted; the left side surface and the right side surface of the fixed seat are provided with symmetrical holes, and punching sleeves are arranged in the holes; the guide plate is provided with a first through hole which is horizontally arranged and penetrates through the near end and the far end of the guide plate, the first through hole is aligned with the profile hole, the punch is horizontally arranged, the far end of the punch is fixedly connected with the near end of the inclined sliding block, the near end of the punch is inserted into the first through hole, and the near end of the punch is flush with the near end of the guide plate or is retracted into the first through hole; the inner diameter of the punching sleeve is matched with the outer diameter of the punch, so that the punch can be horizontally inserted into the punching sleeve; the punch is sleeved with a spring;
the two inclined slide blocks are respectively positioned under the two inclined wedges; the two inclined sliding blocks are provided with outer inclined planes which are matched with inner inclined planes of the inclined wedges right above the outer inclined planes; when the two inclined wedges are pressed downwards until the inner inclined surfaces are contacted with the two inclined sliding blocks, the inclined wedges continue to press downwards to push the two inclined sliding blocks to slide from two sides to the middle respectively by utilizing the relative sliding of the inner inclined surfaces along the outer inclined surfaces, and the two punching heads are driven to be respectively inserted into the two punching sleeves to punch out the two shaft holes of the movable support.
2. The device as claimed in claim 1, wherein a wedge fixing seat is installed at a connection portion of the upper base plate and the wedge; the wedge fixing seat is provided with a through hole, the shape of the through hole is matched with the shape of the upper end of the wedge, the upper end of the wedge is inserted into the through hole, and the wedge fixing seat is fixedly connected with the upper substrate and used for fixing the position of the wedge.
3. The device of claim 2, wherein the wedge fixing seat is fixedly connected with the upper base plate through a fifth screw; the upper end of the inclined wedge is fixedly connected with the upper base plate through a first screw.
4. The device of claim 1, wherein the fixing seat is fixedly connected with the lower substrate through a fourth screw and/or a third pin.
5. The apparatus of claim 1, wherein the guide plate is fixedly connected to the lower substrate by a second screw and/or a first pin.
6. The device of claim 1, wherein the distal end of the punch is fixedly coupled to the proximal end of the ramp block by a punch retaining nut.
7. The device of claim 1, wherein a proximal end of the spring is in contact with the guide plate and a distal end of the spring is in contact with the punch retaining nut; the spring is a disc spring.
8. The apparatus of claim 1, wherein the diagonal slide is mounted on a rail fixedly mounted on the lower substrate; specifically, the guide rail is fixedly connected with the lower substrate through a third screw and/or a second pin.
9. The apparatus of claim 1, wherein a limit screw for positioning an initial position of the diagonal slider is installed on the guide rail.
10. The device of claim 1, wherein the movable bracket is mounted to the lower substrate by a positioning core.
11. A machining method for simultaneously punching two shaft holes in a movable bracket at one time by using the caster bracket punching device according to any one of claims 1 to 10, the method comprising:
fixedly mounting the upper substrate on a slide block of a press machine, and fixedly mounting the lower substrate on a workbench of the press machine; placing a movable support to be punched on a punching station to enable two side walls of the movable support to be respectively positioned in two symmetrical gaps formed between the fixed seat and the guide plates on the left side and the right side of the fixed seat; the press slide block moves downwards, the two inclined wedges press downwards to enable the two inclined slide blocks to slide from two sides to the middle fixed seat respectively, and the two punching heads punch two shaft holes in two side walls of the movable support in the horizontal direction respectively.
12. The method of claim 11, wherein during the downward movement of the press ram, the inner sloped surface of the cam wedge first contacts the outer sloped surface of the cam ram; the press sliding block continues to move downwards, the inner inclined plane of the inclined wedge and the outer inclined plane of the inclined sliding block slide relatively, the two inclined sliding blocks are pushed and drive the punch to move towards the middle from two sides, and the near end of the punch extends out of the first through hole of the guide plate to punch a hole in the side wall of the movable support; when the press sliding block moves downwards to the lower limit, the shaft hole of the movable support is completely punched, and the punch is inserted into the punch sleeve in the profile hole of the fixed seat.
13. The method as claimed in claim 12, wherein when the shaft hole of the movable frame is completely punched through, the press ram moves upwards, the inner inclined surface and the outer inclined surface slide relatively, the spring pushes the inclined slide block and the punch to return to two sides, the guide plate blocks the side plate of the movable frame, and the punch is pulled out of the shaft hole of the movable frame.
14. The method of claim 13, wherein when the press ram continues to move upward and return, the inner inclined surface of the wedge disengages from the outer inclined surface of the slide, the spring returns the slide to the initial position by the spring force and the punch returns to be flush with the proximal end of the guide plate or retracts into the first through hole of the guide plate; and taking out the movable support after punching, and then putting the movable support into the next movable support for continuous processing.
CN202011609905.0A 2020-12-30 2020-12-30 Caster bracket punching device and punching method Pending CN112828127A (en)

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CN202011609905.0A CN112828127A (en) 2020-12-30 2020-12-30 Caster bracket punching device and punching method

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Application Number Priority Date Filing Date Title
CN202011609905.0A CN112828127A (en) 2020-12-30 2020-12-30 Caster bracket punching device and punching method

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CN112828127A true CN112828127A (en) 2021-05-25

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN201223898Y (en) * 2008-07-25 2009-04-22 南阳淅减汽车减振器有限公司 Horizontal punching die for lower support of shock absorber
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CN203426242U (en) * 2013-08-30 2014-02-12 重庆市宏立摩托车制造有限公司 U-shaped pipe supporting leg punching tool
CN104438586A (en) * 2014-12-12 2015-03-25 李俊 U-shaped support punching die
CN204294730U (en) * 2014-12-12 2015-04-29 李俊 A kind of U-shaped bracket piercing die
CN215391935U (en) * 2020-12-30 2022-01-04 上海凯众聚氨酯有限公司 Caster wheel bracket punching device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737431U (en) * 1993-12-27 1995-07-11 エヌティエヌ株式会社 Window hole press punching device for cylindrical members
KR20030005637A (en) * 2001-07-09 2003-01-23 현대자동차주식회사 Piercing press
CN201223898Y (en) * 2008-07-25 2009-04-22 南阳淅减汽车减振器有限公司 Horizontal punching die for lower support of shock absorber
CN103433348A (en) * 2013-08-15 2013-12-11 上海三剑汽车部件有限公司 Headrest rod manufacturing device and headrest rod manufacturing method thereof
CN203426242U (en) * 2013-08-30 2014-02-12 重庆市宏立摩托车制造有限公司 U-shaped pipe supporting leg punching tool
CN104438586A (en) * 2014-12-12 2015-03-25 李俊 U-shaped support punching die
CN204294730U (en) * 2014-12-12 2015-04-29 李俊 A kind of U-shaped bracket piercing die
CN215391935U (en) * 2020-12-30 2022-01-04 上海凯众聚氨酯有限公司 Caster wheel bracket punching device

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