Metal plate punching device

Abstract

The utility model discloses a sheet metal punching device, which relates to the technical field of sheet metal punching and comprises a workbench, a support is fixedly arranged on the workbench, and a punching piece capable of moving back and forth and left and right in the horizontal direction is arranged on the bottom surface of the support through a movable base. A protection mechanism used for preventing scraps from splashing and plates from deforming during punching is arranged on the punching part, the protection mechanism comprises a splash-proof part and an extrusion part, a clamping mechanism used for clamping and fixing the plates of different sizes is arranged on the workbench, the splash-proof part is arranged to effectively prevent metal scraps generated during punching from splashing, the extrusion part is arranged on the extrusion part, and the extrusion part is arranged on the extrusion part. The safety of operators is protected, the environmental pollution of a workshop is reduced, the extrusion part passes through a pre-pressed plate punching area, local deformation during punching is inhibited, the edge of a punched hole is smooth, the product quality is improved, the clamping mechanism can adapt to plates of different sizes, the clamp does not need to be replaced frequently, and the production efficiency and the equipment utilization rate are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet metal punching technology field, concretely relates to sheet metal punching device. BACKGROUND

[0002] Sheet metal is a kind of comprehensive cold working process for sheet metal, including cutting, punching, cutting, compounding, folding, riveting, splicing, forming etc., its remarkable feature is that the same part thickness is consistent, sheet metal has the characteristics such as light weight, high strength, electric conduction, low cost, good performance, has been widely applied in electronic appliances, communication, automobile industry, medical equipment etc., needs to carry out punching operation to sheet metal in the process of sheet metal production.

[0003] The utility model discloses a kind of sheet metal punching device of prior patent announcement No.

[0004] However, in the implementation of the above technical solutions, the following technical problems still exist: the punching head is directly pressed by the hydraulic rod, which cannot limit and press the plate, and the plate is easily deformed during punching operation. When the punching head punches the sheet metal plate, the flying debris can easily cause injury. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing sheet metal punching device, to solve the problem that existing punching device is difficult to limit and press plate, and easily lead to plate deformation during punching operation, punching head is punched to sheet metal plate, and flying debris can easily cause injury.

[0006] Sheet metal punching device, including workbench, the workbench is fixedly provided with support, the bottom surface of the support is provided with punch piece that can move forward and backward and left and right in horizontal direction by moving base, the punch piece is provided with protection mechanism for preventing flying debris and plate deformation when punching, the protection mechanism includes splash-proof piece and extrusion piece, the workbench is provided with clamping mechanism for clamping and fixing different sizes of plate.

[0007] Preferably, the punch piece includes a mounting plate fixedly arranged on the moving base, the mounting plate is fixedly provided with a hydraulic rod, the output shaft of the hydraulic rod is vertically downward and the top end is fixedly provided with a punching head, the splash-proof piece is fixedly arranged around the punching head on the hydraulic rod.

[0008] Preferably, the splash-proof member comprises a spring fixed on the output shaft of the hydraulic rod, a protective cover fixed at the top end of the spring and sleeved on the output shaft of the hydraulic rod and located around the punching head, and the pressing member comprises a plurality of first spring columns fixed between the bottom surface of the mounting plate and the plate surface.

[0009] Preferably, the clamping mechanism comprises a plurality of mounting grooves arranged in parallel on the workbench, a bidirectional screw rod is rotatably arranged in one of the mounting grooves, and a limiting rod is fixed in the other mounting grooves, two threads with opposite screw directions are arranged on the bidirectional screw rod, a threaded block is threadedly sleeved on each thread, a drive motor with an output shaft arranged horizontally and fixedly connected to the bidirectional screw rod is fixed on the workbench, the threaded block is sleeved on the limiting rod, a clamping plate is fixed on the threaded block, and a limiting assembly for limiting the plate surface is arranged on the clamping plate.

[0010] Preferably, the limiting assembly comprises vertical grooves arranged in parallel on the clamping plate, a second spring column is fixed in each vertical groove, a limiting block in sliding fit with the inner wall of the vertical groove and in contact with the plate surface is fixed to the bottom surface of the second spring column, and the side surface of the limiting block is in the shape of an inclined wedge.

[0011] Preferably, a fixing seat is fixed to the bottom surface of the workbench, a dust collecting member for collecting the residual dust generated by punching is arranged on the fixing seat, the dust collecting member comprises a dust falling hole arranged on the workbench, a movable groove is arranged in the fixing seat, a drawer corresponding to the position of the dust falling hole is slidably arranged in the movable groove, and a handle is fixed to the surface of the drawer.

[0012] The metal scraps generated by punching are effectively blocked by the splash-proof member, the safety of the operator is protected, the environmental pollution in the workshop is reduced, the punching area of the plate is pre-pressed by the pressing member, the local deformation during punching is suppressed, the punching edge is ensured to be flat, the product quality is improved, the clamping mechanism can be adapted to plates of different sizes, the clamping jig does not need to be frequently replaced, and the production efficiency and equipment utilization rate are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 、 2 The structure of the metal plate punching device is shown in different views.

[0014] Figure 3 The structure of the punching member in the metal plate punching device is shown.

[0015] Figure 4 The structure of the clamping mechanism in the metal plate punching device is shown.

[0016] Figure 5 It is the structure schematic view of the limiting assembly in the utility model.

[0017] Among them, 100, workbench;101, fixed seat;102, support;103, moving base;104, hydraulic rod;105, punching head;106, mounting plate;200, protection mechanism;201, first spring column;202, limiting cover plate;203, spring;204, protective cover;300, clamping mechanism;301, mounting groove;302, bidirectional screw;303, drive motor;304, limiting rod;305, threaded block;306, clamping plate;400, limiting assembly;401, second spring column;402, limiting block;403, vertical groove;500, dust collecting piece;501, dust falling hole;502, movable groove;503, drawer;504, handle. DETAILED DESCRIPTION

[0018] In order to make the technical means, creation features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] As Figures 1 to 5 The sheet metal punching device, including workbench 100, the workbench 100 is fixedly provided with support 102, the bottom surface of the support 102 is provided with the punching piece that can move back and forth left and right in the horizontal direction through the moving base 103, the punching piece is provided with the protection mechanism 200 for preventing the splashing of debris and the deformation of the plate during punching, the protection mechanism 200 includes splash-proof piece and extrusion piece, the workbench 100 is provided with the clamping mechanism 300 for clamping and fixing different sizes of plates.

[0020] In the embodiment, the punching piece includes the mounting plate 106 fixedly arranged on the moving base 103, the hydraulic rod 104 is fixedly arranged on the mounting plate 106, the output shaft of the hydraulic rod 104 is vertically downward and the top end is fixedly provided with the punching head 105, the splash-proof piece is fixedly arranged on the hydraulic rod 104 around the punching head 105.

[0021] The moving base 103 drives the mounting plate 106 to move to the specified punching position according to the setting program, ensures that the punching position on the plate is accurately corresponding with the punching head 105, after receiving the starting signal, the output shaft of the hydraulic rod 104 starts to move vertically downward. With the downward movement of the output shaft, the punching head 105 arranged on the top end thereof gradually approaches the sheet metal plate, in the process that the punching head 105 approaches the plate and punches, since the splash-proof piece is fixedly arranged on the hydraulic rod 104 around the punching head 105, the splash-proof piece also moves downward synchronously with the hydraulic rod 104, and plays a blocking role on the debris generated in the punching process.

[0022] In the embodiment, the splash-proof member comprises a spring 203 fixed on the output shaft of the hydraulic rod 104, and the top end of the spring 203 is fixed with a protective cover 204 which is sleeved on the output shaft of the hydraulic rod 104 and located around the punching head 105. The extrusion member comprises a plurality of groups of first spring columns 201 fixed between the bottom surface of the mounting plate 106, and the sliding end of the first spring column 201 is vertically downward and the top end is fixed with a limiting cover plate 202 which is in contact with the surface of the plate.

[0023] The output shaft of the hydraulic rod 104 drives the protective cover 204 to move downward with the punching head 105. In the initial stage, the spring 203 is in a natural extension state, and the protective cover 204 maintains a certain relative position with the punching head 105. When the protective cover 204 contacts the surface of the plate, the protective cover 204 stops continuing to move downward due to the blockage of the plate, but the hydraulic rod 104 still drives the punching head 105 to move downward. At this time, the spring 203 starts to be compressed and stores elastic potential energy. The punching head 105 continues to complete the punching action in the process of compression of the spring 203. During this period, the compressed spring 203 makes the protective cover 204 tightly fit on the surface of the plate, forming a good seal and effectively preventing the debris generated by punching from splashing out. After the punching is completed, the output shaft of the hydraulic rod 104 drives the punching head 105 to move upward. With the rising of the punching head 105, the spring 203 gradually recovers to the original length, and the protective cover 204 is also reset upward to the initial state.

[0024] During the downward movement of the punching head 105, the limiting cover plate 202 as the sliding end of the first spring column 201 first contacts the surface of the plate. With the continuous driving of the hydraulic rod 104, the first spring column 201 starts to be compressed, and the spring inside the first spring column 201 generates elastic deformation and stores elastic potential energy. At this time, the limiting cover plate 202 is always in close contact with the surface of the plate, and through the continuous application of pressure, it plays a role in extruding and fixing the surrounding area of the plate during punching, effectively preventing the plate from deforming during punching. After the punching operation is completed, the output shaft of the hydraulic rod 104 drives the punching head 105 to move upward. The first spring column 201 gradually extends under the elastic restoring force of its own spring, and the limiting cover plate 202 is also reset upward to the initial state.

[0025] In the embodiment, the clamping mechanism 300 comprises a plurality of groups of mounting slots 301 arranged in parallel on the workbench 100, wherein a bidirectional screw rod 302 is arranged in rotation in one group of mounting slots 301, and a limiting rod 304 is fixedly arranged in the other mounting slots 301, two threads with opposite screw directions are arranged on the bidirectional screw rod 302, and a threaded block 305 is threadedly arranged on each thread, a drive motor 303 is fixedly arranged on the workbench 100, and an output shaft of the drive motor 303 is arranged horizontally and fixedly connected to the bidirectional screw rod 302 at the top end, the threaded block 305 is slidably arranged on the limiting rod 304, a clamping plate 306 is fixedly arranged on the threaded block 305, and a limiting assembly 400 for limiting the surface of the plate is arranged on the clamping plate 306.

[0026] In use, the plate to be punched is placed on the workbench 100, and the edges of the plate are located in the region between the clamping plates 306, and after the drive motor 303 receives a starting signal, the output shaft starts to rotate horizontally, and since the output shaft is fixedly connected to the bidirectional screw rod 302 at the top end, the bidirectional screw rod 302 rotates synchronously, and the two threads with opposite screw directions on the bidirectional screw rod 302 drive the threaded blocks 305 threadedly arranged thereon to move towards or away from each other during rotation. Since the threaded blocks 305 are simultaneously slidably arranged on the limiting rods 304, the limiting rods 304 serve as guides to ensure that the threaded blocks 305 can only move linearly in the horizontal direction, and as the threaded blocks 305 move, the clamping plates 306 fixedly arranged on the threaded blocks 305 also move synchronously. When the clamping plates 306 contact the edges of the plate, the clamping plates 306 that continue to move exert a clamping force on the plate to firmly fix the plate on the workbench 100. In this process, the limiting assembly 400 on the clamping plate 306 further limits the surface of the plate to prevent displacement or shaking of the plate during clamping.

[0027] In the embodiment, the limiting assembly 400 comprises a plurality of vertical slots 403 arranged in parallel and formed in the clamping plate 306, a second spring column 401 is fixedly arranged in the vertical slot 403, a limiting block 402 in sliding fit with the inner side wall of the vertical slot 403 and in contact with the surface of the plate is fixedly connected to the bottom surface of the second spring column 401, and the side surface of the limiting block 402 is in the shape of an inclined wedge.

[0028] When the clamping plate 306 approaches the plate, the limiting block 402 as the first part in contact with the plate, first touches the surface of the plate, the inclined wedge side first contacts the edge of the plate, and as the clamping plate 306 continues to move towards the plate, the friction and extrusion force generated between the wedge side and the plate will cause the plate to gradually move to the correct clamping position along the direction of the wedge side. As the clamping plate 306 continues to approach the plate, the limiting block 402 is resisted by the contact with the plate, and the second spring column 401 is fixed in the vertical groove 403 and the bottom surface is connected with the limiting block 402, at this time the second spring column 401 begins to be compressed, the internal spring is elastically deformed and stores elastic potential energy, and during the entire clamping process, the compressed second spring column 401 always exerts a continuous pressure on the surface of the plate through the limiting block 402. This pressure can effectively limit the displacement of the plate in the horizontal direction, and also can assist the clamping plate 306 to better fix the plate and prevent the plate from shaking during the punching process.

[0029] In the embodiment, the bottom surface of the workbench 100 is fixedly provided with a fixed seat 101, and the fixed seat 101 is provided with a dust collecting piece 500 for collecting the residual chips generated by punching. The dust collecting piece 500 includes a dust falling hole 501 formed in the workbench 100, and the fixed seat 101 is provided with a movable groove 502, and the movable groove 502 is slidably provided with a drawer 503 corresponding to the position of the dust falling hole 501. The surface of the drawer 503 is fixedly provided with a handle 504.

[0030] During the entire sheet metal punching operation, when the punching head 105 punches the plate, metal chips will be generated. Under the action of gravity and impact force generated during punching, the chips begin to fall downward. The dust falling hole 501 provides a falling channel for the chips, and the chips fall downward through the dust falling hole 501 and fall into the movable groove 502 in the fixed seat 101. The drawer 503 slidably arranged in the movable groove 502 corresponds to the position of the dust falling hole 501, and the chips directly fall into the drawer 503. When the punching operation is completed or the amount of chips collected in the drawer 503 reaches a certain amount, the drawer 503 can be slid out of the movable groove 502 to clean the chips. After cleaning, the drawer 503 is pushed back into the movable groove 502 to wait for the next collection of chips.

[0031] Working process and principle: when the device is used, the sheet metal to be punched is placed on the workbench 100, the driving motor 303 is started, the output shaft drives the bidirectional screw rod 302 fixedly connected therewith to rotate, the two sections of threads with opposite screw directions on the bidirectional screw rod 302 drive the threaded blocks 305 respectively sleeved thereon to move towards each other along the limiting rods 304, so as to drive the clamping plates 306 fixed on the threaded blocks 305 to move. When the clamping plates 306 contact the edges of the sheet metal, continue to move to firmly clamp the sheet metal. In this process, the limiting assembly 400 on the clamping plate 306 plays a role, the limiting block 402 contacts and exerts pressure on the surface of the sheet metal under the action of the second spring column 401, further preventing the displacement of the sheet metal, the inclined wedge-shaped side surface of the limiting block 402 helps the automatic centering of the sheet metal, the moving base 103 moves the mounting plate 106 installed thereon in the horizontal direction according to the preset program, so that the punching head 105 is accurately positioned to the position to be punched of the sheet metal, and the splash-proof part and the extrusion part work synchronously as the punching head 105 goes down. In terms of splash-proof, the output shaft of the hydraulic rod 104 drives the protective cover 204 to go down, when the protective cover 204 contacts the sheet metal, the spring 203 is compressed, ensuring that the protective cover 204 closely fits the surface of the sheet metal, blocking the debris splashing generated by punching. In terms of extrusion, the sliding ends of the multiple groups of first spring columns 201 fixedly arranged on the bottom surface of the mounting plate 106 first contact the sheet metal, as the hydraulic rod 104 continues to go down, the first spring columns 201 are compressed, the limiting cover plate 202 exerts uniform extrusion force on the punching peripheral area of the sheet metal, preventing the deformation of the sheet metal, the output shaft of the hydraulic rod 104 continuously goes down, driving the punching head 105 to punch the sheet metal, completing the punching task.

[0032] From the technical common sense, the utility model can be realized through other embodiments without departing from the spirit or essential characteristics. Therefore, the above-mentioned disclosed embodiments are only examples, and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are included in the utility model.

Claims

1. A sheet metal punching device, characterized by: The utility model provides a kind of plate punching machine, including workbench (100), the bracket (102) is fixedly arranged on the workbench (100), the bottom of the bracket (102) is provided with punch piece that can move in horizontal direction forwards and backwards left and right by moving base (103), the punch piece is provided with protection mechanism (200) for preventing splashing and plate deformation when punching, the protection mechanism (200) includes splash guard and extrusion piece, the workbench (100) is provided with clamping mechanism (300) for clamping and fixing different sizes of plate.

2. The sheet metal punching device of claim 1, wherein: The punch piece includes a mounting plate (106) fixedly arranged on the moving base (103), a hydraulic rod (104) fixedly arranged on the mounting plate (106), an output shaft of the hydraulic rod (104) vertically downward and a punch head (105) fixedly arranged at the top end of the output shaft, a splash guard fixedly arranged around the punch head (105) on the hydraulic rod (104).

3. The sheet metal punching device of claim 2, wherein: The splash guard includes a spring (203) fixedly arranged on the output shaft of the hydraulic rod (104), a top end of the spring (203) is fixedly arranged with a protective cover (204) slidably sleeved on the output shaft of the hydraulic rod (104) and located around the punch head (105), and the extrusion piece includes a plurality of first spring columns (201) fixedly arranged between the bottom surfaces of the mounting plate (106), a sliding end of the first spring column (201) vertically downward and a limiting cover plate (202) fixedly arranged at the top end of the sliding end and abutting against the surface of the plate.

4. The sheet metal punching device of claim 1, wherein: The clamping mechanism (300) includes a plurality of installation grooves (301) spaced apart and arranged in parallel on the workbench (100), a bidirectional screw (302) rotatably arranged in one of the installation grooves (301), a limiting rod (304) fixedly arranged in the other installation grooves (301), two threads with opposite screw directions arranged on the bidirectional screw (302), a threaded block (305) threadedly sleeved on each thread, a drive motor (303) fixedly arranged on the workbench (100) and having an output shaft horizontally arranged and a top end fixedly connected with the bidirectional screw (302), the threaded block (305) slidably sleeved on the limiting rod (304), a clamping plate (306) fixedly arranged on the threaded block (305), and a limiting assembly (400) for limiting the surface of the plate arranged on the clamping plate (306).

5. The sheet metal punching device of claim 4, wherein: The limiting assembly (400) includes a vertical slot (403) spaced apart and arranged in parallel on the clamping plate (306), a second spring column (401) fixedly arranged in the vertical slot (403), a limiting block (402) fixedly connected with the bottom surface of the second spring column (401) and slidably matched with the inner side wall of the vertical slot (403) and in contact with the surface of the plate, and the side surface of the limiting block (402) is in the shape of an inclined wedge.

6. The sheet metal punching device of claim 1, wherein: The bottom surface of the workbench (100) is fixedly provided with a fixing seat (101), and a dust collecting element (500) for collecting residual chips generated by punching is arranged on the fixing seat (101). The dust collecting element (500) comprises a dust falling hole (501) arranged on the workbench (100). An activity groove (502) is arranged in the fixing seat (101). A drawer (503) corresponding to the position of the dust falling hole (501) is slidably arranged in the activity groove (502). A handle (504) is fixedly arranged on the surface of the drawer (503).

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