CN219052613U

CN219052613U - Punching device

Info

Publication number: CN219052613U
Application number: CN202223318789.4U
Authority: CN
Inventors: 杨国军
Original assignee: Jiangmen Rongsheng Industrial Co ltd
Current assignee: Jiangmen Rongsheng Industrial Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-23
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to the technical field of machining and discloses a punching device which comprises an upper die mechanism and a lower die mechanism; the upper die mechanism comprises an upper die plate and pressing blocks arranged at two ends of the upper die plate; the pressing block is provided with a pressing surface; the lower die mechanism comprises a lower die plate, two punching assemblies and a jig assembly; the punching assembly comprises a fixed block, a sliding block, a pull rod, a reset piece, a punching needle, a material pressing plate and an elastic piece; the sliding block is provided with a pushing surface which is correspondingly arranged with the jacking surface; when the upper die plate moves towards the direction close to the lower die plate, the punching pins on the two sliding blocks simultaneously move towards the direction close to the jig assembly. Realize two punching pins and punch a hole the processing to the fixed work piece on the tool subassembly simultaneously, realize the synchronous processing of punching a hole in work piece both sides, need not overturn positioning operation to the work piece, and then guarantee the concentricity of the position of punching a hole in work piece both sides, reduce the product defective rate, improve production efficiency simultaneously.

Description

Punching device

Technical Field

The utility model relates to the technical field of machining, in particular to a punching device.

Background

With the continuous progress of the science level, the requirements of people on the machining precision of the workpiece are higher and higher, and the machining modes of the workpiece are numerous, wherein the machining modes comprise punching. The punching process is to punch a hole of a desired shape in a workpiece as required.

In the process of punching, many workpieces need to be punched on two sides, and for the workpiece required by the punching, the existing punching mode is to firstly punch one side of the workpiece and then to turn the workpiece over to punch the other side, so that the processing requirement of punching is met on two sides of the workpiece, but because the workpiece can be turned over in the processing process, the holes punched on two sides are difficult to ensure to be concentric, and the reject ratio is higher.

Disclosure of Invention

The utility model aims to solve the technical problems that:

the holes punched on both sides of the workpiece cannot be guaranteed to be concentric, so that the defective rate of the workpiece is high.

In order to solve the above technical problems, the present utility model provides a punching device, comprising:

the upper die mechanism comprises an upper die plate and pressing blocks which are oppositely arranged at two ends of the upper die plate; the pressing block is provided with a pressing surface; and

The lower die mechanism is arranged corresponding to the upper die mechanism; the lower die mechanism comprises a lower die plate, two punching assemblies arranged on the lower die plate, and a jig assembly arranged between the two punching assemblies; the two punching assemblies and the two pressing blocks are respectively and correspondingly arranged; the punching assembly comprises a fixed block, a sliding block arranged on the lower die plate in a sliding manner, a pull rod penetrating through the fixed block and connected with the sliding block, a reset piece elastically supported between the pull rod and the fixed block, a punching needle fixed on the sliding block, a material pressing plate corresponding to the punching needle, and an elastic piece arranged between the material pressing plate and the sliding block; the sliding block is provided with a pushing surface which is correspondingly arranged with the top pressing surface;

when the upper die plate moves towards the direction close to the lower die plate, the pressing surface of the pressing block is abutted with the pressing surface of the sliding block so as to push the sliding block to move, and the punching pins on the two sliding blocks simultaneously move towards the direction close to the jig assembly.

In one embodiment, the pressing surfaces are arranged on one sides of the two pressing blocks, which are close to each other, and the pressing surfaces on two sides are gradually arranged in a deviating manner along the direction from the upper die plate to the lower die plate.

In one embodiment, the pushing surfaces are disposed on one sides of the two sliding blocks, where the two sides of the pushing surfaces are inclined to be gradually close to each other along the direction from the lower die plate to the upper die plate.

In one embodiment, the fixed block is fixed on the lower die plate, the pull rod is slidably arranged in the fixed block, the reset piece and the sliding block are oppositely arranged on two sides of the fixed block, and the reset piece applies elastic tension to the sliding block in the direction close to the fixed block.

In one embodiment, the reset piece is in a spiral structure, the reset piece is arranged on the outer side of the pull rod in a surrounding mode, one end of the reset piece is abutted to the pull rod, and the other end of the reset piece is abutted to the fixed block.

In one embodiment, the material pressing plate is in a rectangular straight plate structure, the punching needle is perpendicular to the material pressing plate, and a pinhole is formed in the material pressing plate for the punching needle to pass through.

In one embodiment, the elastic piece is a rubber column, the elastic piece is in a cylindrical structure, the elastic piece is arranged in parallel with the punching needle, and the elastic piece is arranged around the punching needle at intervals.

In one embodiment, the lower die plate is provided with a guide block, the guide block is arranged in a strip-shaped structure, the guide blocks are oppositely arranged on two sides of the sliding block, and the sliding block is abutted to the guide block.

In one embodiment, the sliding block is provided with a needle plate; the punching needle penetrates through the needle plate, and the needle plate presses and fixes the punching needle on the sliding block.

In one embodiment, the jig assembly comprises a mounting seat fixedly connected with the lower die plate, a first female die and a second female die which are slidably arranged on the mounting seat, and rivets respectively connected with the first female die and the second female die.

Compared with the prior art, the punching device has the beneficial effects that:

through setting up the briquetting at the both ends of cope match-plate pattern, promote two sliders simultaneously at the briquetting at punching process both ends and remove, and then realize that two punching pins punch a hole the processing to the work piece that fixes on the tool subassembly simultaneously, realize the synchronous processing of punching a hole in work piece both sides, need not overturn positioning operation to the work piece, and then guarantee the concentricity of the position of punching a hole in work piece both sides, reduce the product defective rate, improve production efficiency simultaneously.

Drawings

FIG. 1 is a schematic view of a punching device according to an embodiment of the present utility model;

FIG. 2 is a schematic front view of the punching apparatus of FIG. 1;

FIG. 3 is a schematic top view of the punching device of FIG. 1 after concealing the upper die mechanism;

fig. 4 is a schematic structural diagram of the fixture assembly in fig. 1.

The meaning of the reference numerals in the drawings are:

100. a punching device;

10. an upper die mechanism; 20. an upper template; 30. briquetting; 35. a pressing surface; 40. a die handle;

50. a lower die mechanism; 60. a lower template; 65. a guide block; 70. a punching assembly; 71. a fixed block; 72. a slide block; 720. a pressing surface; 73. a pull rod; 74. a reset member; 75. punching needles; 76. a pressing plate; 77. an elastic member; 78. a needle plate; 79. a limit sleeve; 80. a jig assembly; 81. a mounting base; 82. a first female die; 83. a second female die; 84. and (5) a rivet.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 4, a punching device 100 according to an embodiment of the utility model includes an upper die mechanism 10 and a lower die mechanism 50 corresponding to the upper die mechanism 10. The upper die mechanism 10 is connected with an external lifting driving device to provide power required by punching; the upper die mechanism 10 comprises an upper die plate 20 and pressing blocks 30 which are oppositely arranged at two ends of the upper die plate 20; the pressing block 30 is provided with a pressing surface 35. The lower die mechanism 50 comprises a lower die plate 60, two punching assemblies 70 mounted on the lower die plate 60, and a jig assembly 80 arranged between the two punching assemblies 70; the two punching assemblies 70 are respectively arranged corresponding to the two pressing blocks 30; the punching assembly 70 includes a fixed block 71, a slider 72 slidably provided on the lower die plate 60, a pull rod 73 penetrating through the fixed block 71 and connected to the slider 72, a reset member 74 elastically supported between the pull rod 73 and the fixed block 71, a punch pin 75 fixed on the slider 72, a pressing plate 76 provided corresponding to the punch pin 75, and an elastic member 77 provided between the pressing plate 76 and the slider 72; the slider 72 is provided with a pressing surface 720, and the pressing surface 720 is provided corresponding to the pressing surface 35. When the upper die plate 20 moves toward the direction approaching the lower die plate 60, the pressing surface 35 of the pressing block 30 abuts against the pressing surface 720 of the sliding block 72 to push the sliding block 72 to move, the punching pins 75 on the two sliding blocks 72 simultaneously move toward the direction approaching the jig assembly 80, the workpiece to be punched is fixed on the jig assembly 80, and then punching operations are performed on two sides of the workpiece simultaneously through the punching pins 75.

Above-mentioned punching device 100 through setting up briquetting 30 at the both ends of cope match-plate pattern 20, promotes two sliders 72 removal simultaneously at the briquetting 30 at punching process both ends, and then realizes that two punching pins 75 carry out the processing of punching a hole to the work piece that fixes on the tool subassembly 80 simultaneously, realizes the synchronous processing of punching a hole in work piece both sides, need not overturn the location operation to the work piece, and then guarantees the concentricity of the position of punching a hole in work piece both sides, reduces the product defective rate, improves production efficiency simultaneously.

Further, the upper mold plate 20 is configured in a rectangular straight plate structure, and the upper mold plate 20 is configured in a horizontal direction; the pressing blocks 30 are arranged in a rectangular structure, the pressing blocks 30 are oppositely arranged at two ends of the upper die plate 20, and the upper die plate 20 moves correspondingly to drive the pressing blocks 30 to move together. In this embodiment, the upper die plate 20 is provided with a die shank 40; the die shank 40 is in a cylindrical structure, the die shank 40 is arranged on one side of the upper die plate 20 far away from the pressing block 30, and the die shank 40 is fixedly connected with an external lifting driving device so as to control the lifting action of the upper die plate 20 through the external lifting driving device.

Further, the pressing surfaces 35 are disposed on one side of the two pressing blocks 30, where the pressing surfaces 35 on two sides are gradually inclined away from each other along the direction of the upper die plate 20 toward the lower die plate 60, so as to ensure that the pressing blocks 30 on two sides press the two sliding blocks 72 inwards through the pressing surfaces 35 during the pressing process of the upper die plate 20.

Further, the lower die plate 60 is in a rectangular straight plate structure, the lower die plate 60 is arranged in parallel with the upper die plate 20, and the lower die plate 60 is fixedly connected with the outside; the number of the punching assemblies 70 is two, the two punching assemblies 70 are arranged in a way of extending towards each other, and the number of the punching assemblies 70 is the same as the number of the pressing blocks 30.

Further, the fixing block 71 is arranged in a rectangular square block structure, the fixing block 71 is fixed on the lower die plate 60, and the fixing blocks 71 in the two punching assemblies 70 are correspondingly arranged at one sides of the pressing blocks 30, which are away from each other; the sliding block 72 is arranged in a rectangular square block structure, the sliding block 72 is slidably arranged on the lower die plate 60, the sliding block 72 is correspondingly arranged on one side of the two side fixing blocks 71, which are close to each other, and the sliding block 72 corresponds to the arrangement position of the pressing block 30. In this embodiment, the pushing surfaces 720 are disposed on the sides of the two sliding blocks 72 facing away from each other, and the pushing surfaces 720 on the two sides are disposed in a gradually approaching manner along the direction of the lower die plate 60 toward the upper die plate 20, so as to ensure that the sliding blocks 72 on the two sides of the pressing block 30 are gradually closed in the pressing process. Further, the lower die plate 60 is provided with a guide block 65, the guide block 65 is in a strip structure, the guide block 65 is relatively arranged at two sides of the sliding block 72, and the sliding block 72 is abutted against the guide block 65 so as to guide the movement of the sliding block 72, thereby ensuring the stability of the movement of the sliding block 72.

Further, the pull rod 73 is in a cylindrical structure, the pull rod 73 is slidably arranged in the fixed block 71, one end of the pull rod 73 is fixedly connected with the slide block 72, and the slide block 72 moves and drives the pull rod 73 to move relative to the fixed block 71; the restoring member 74 is disposed in a spiral structure, the restoring member 74 and the slider 72 are disposed on opposite sides of the fixed block 71, the restoring member 74 is disposed around the outside of the pull rod 73, one end of the restoring member 74 abuts against the pull rod 73, the other end of the restoring member 74 abuts against the fixed block 71, and the restoring member 74 applies elastic tension to the slider 72 in a direction close to the fixed block 71, so that the restoring member 74 carries out a restoring operation to the slider 72 when the pressing block 30 is not applying pressure to the slider 72. In this embodiment, a stop collar 79 is disposed on the pull rod 73, the stop collar 79 is disposed in a ring structure, the stop collar 79 is correspondingly sleeved on the outer side of the pull rod 73, the stop collar 79 is disposed between the fixed block 71 and the sliding block 72, one end of the stop collar 79 is fixedly connected with the sliding block 72, the stop collar 79 is used for limiting the reset position of the sliding block 72, collision between the sliding block 72 and the fixed block 71 is avoided, and service life is prolonged. Specifically, the return member 74 is a coil spring.

Further, the punch pin 75 is disposed in a strip-shaped structure, the punch pin 75 is disposed at a side of the slider 72 away from the fixed block 71, the punch pin 75 extends from the slider 72 toward the jig assembly 80, and the punch pin 75 is used for punching a workpiece. The pressing plate 76 is in a rectangular straight plate structure, the pressing plate 76 is arranged on one side, far away from the fixed block 71, of the sliding block 72, the pressing plate 76 can move relative to the sliding block 72, the pressing plate 76 is perpendicular to the lower die plate 60, the punching needle 75 is perpendicular to the pressing plate 76, a needle hole is formed in the pressing plate 76 for allowing the punching needle 75 to pass through, the pressing plate 76 is used for being pressed on a workpiece firstly when the workpiece is punched, the workpiece is prevented from moving, and then punching is performed through the punching needle 75, so that the accuracy of the workpiece punching is improved. The elastic piece 77 is a rubber column, the elastic piece 77 is in a cylindrical structure, the elastic piece 77 and the punching needle 75 are arranged in parallel, the elastic piece 77 is arranged around the punching needle 75 at intervals, and the elastic piece 77 fixes the material pressing plate 76 on the sliding block 72. In this embodiment, one punching assembly 70 is correspondingly provided with four elastic members 77, and the four elastic members 77 are correspondingly disposed at four corner positions of the rectangular pressing plate 76, so as to ensure that the pressing force applied by the pressing plate 76 to the workpiece is uniform.

Further, the slider 72 is provided with a needle plate 78. The needle plate 78 is in a rectangular straight plate structure, the needle plate 78 and the sliding block 72 are fixed through bolts, the punching needle 75 is arranged on the needle plate 78 in a penetrating mode, the needle plate 78 is abutted against the end portion of the punching needle 75, the needle plate 78 presses and fixes the punching needle 75 on the sliding block 72, and the needle plate 78 is arranged to facilitate replacement of the punching needle 75. It will be appreciated that the punch pins 75 in the two-sided punch assembly 70 may be provided in different shapes, and the user may select the punch pins 75 accordingly according to the shape of the opening to be machined.

Further, the jig assembly 80 is used for fixing the workpiece, and the jig assembly 80 is arranged between the punching assemblies 70 at two sides; the jig assembly 80 comprises a mounting seat 81, a first female die 82 and a second female die 83 which are slidably arranged on the mounting seat 81, and rivets 84 which are respectively connected with the first female die 82 and the second female die 83. The mounting seat 81 is fixed on the lower die plate 60, the mounting seat 81 is arranged in a substantially U-shaped structure, the first female die 82 and the second female die 83 are correspondingly embedded in the mounting seat 81, the first female die 82 and the second female die 83 can move relative to the mounting seat 81 along the arrangement direction of the punch pin 75, the first female die 82 and the second female die 83 which are designed in a split manner are convenient to replace, and simultaneously, holes with different shapes can be machined on two sides according to the requirements of a workpiece; the rivet 84 sequentially passes through the first female die 82 and the second female die 83, and then connects and fixes the first female die 82 and the second female die 83.

The working process of the utility model is as follows: during punching, the first female die 82 and the second female die 83 are selected according to the shape of the workpiece, the first female die 82 and the second female die 83 are mounted on the mounting seat 81 and connected through rivets 84, and then the workpiece is covered on the outer sides of the first female die 82 and the second female die 83 for fixing. After the preparation stage is completed, the upper die plate 20 is pressed down to drive the pressing block 30 to move towards the direction approaching to the sliding block 72, the top pressing surface 35 of the pressing block 30 is abutted against the pressing surface 720 of the sliding block 72, the sliding blocks 72 on two sides move towards the mutual approaching direction, the sliding blocks 72 move to drive the pull rod 73 to move, the reset piece 74 is elastically deformed, the pressing block 30 is continuously pressed down, the pressing plate 76 is abutted against the workpiece, the sliding blocks 72 are continuously moved towards the mutual approaching direction, the elastic piece 77 is compressed, the punching needle 75 penetrates through the pressing plate 76, and the punching processing of the workpiece is completed.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A punching device, characterized by comprising:

2. The punching device according to claim 1, wherein the pressing surfaces are provided on one side of the two pressing blocks which are close to each other, and the pressing surfaces on both sides are provided in a gradually deviating manner along the upper die plate toward the lower die plate.

3. A punching device according to claim 2, wherein said pressing surfaces are provided on one side of the two blocks away from each other, and said pressing surfaces on both sides are inclined in a gradually approaching manner in the direction of said lower die plate toward said upper die plate.

4. The punching device according to claim 1, wherein the fixing block is fixed to the lower die plate, the pull rod is slidably provided in the fixing block, the restoring member and the slider are provided on both sides of the fixing block opposite to each other, and the restoring member applies an elastic tension to the slider in a direction approaching the fixing block.

5. The punching device according to claim 4, wherein the restoring member is provided in a spiral structure, the restoring member is provided around the outside of the pull rod, one end of the restoring member abuts against the pull rod, and the other end of the restoring member abuts against the fixing block.

6. The punching device according to claim 1, characterized in that the pressing plate is arranged in a rectangular straight plate structure, the punching needle is perpendicular to the pressing plate, and a pinhole is arranged on the pressing plate for the punching needle to pass through.

7. The punching device according to claim 6, wherein the elastic member is a rubber column, the elastic member is arranged in a cylindrical structure, the elastic member is arranged in parallel with the punching pin, and the elastic member is arranged around the punching pin at intervals.

8. A punching device according to any of claims 1 to 7, characterized in that the lower die plate is provided with guide blocks, the guide blocks are arranged in a strip-shaped structure, the guide blocks are oppositely arranged at two sides of the slide block, and the slide block is abutted against the guide blocks.

9. A punching device according to any of claims 1 to 7, characterized in that the slider is provided with a needle plate; the punching needle penetrates through the needle plate, and the needle plate presses and fixes the punching needle on the sliding block.

10. The punching device according to any of claims 1 to 7, characterized in that the jig assembly comprises a mounting seat fixedly connected with the lower die plate, a first female die and a second female die slidingly arranged on the mounting seat, and rivets respectively connecting the first female die and the second female die.