A punching device for producing a bumper for a motor vehicle

Abstract

The utility model discloses a kind of punching equipment for producing automobile bumper, it is related to automobile production technical field, including box, fixed block upper side is equipped with punch seat, bracket is fixed on the top wall of box, two adjusting blocks are symmetrically slidably connected in the both sides of bracket, rotatingly connected with connecting frame on the side of adjusting block away from fixed block, first hydraulic cylinder is fixedly installed on connecting frame, the output shaft of first hydraulic cylinder is fixedly connected with first punch head, electric push rod is rotatably connected with the side of adjusting block close to fixed block, electric push rod lower end is hinged with connecting frame. Advantageous effect lies in: adjusting block on both sides is adjusted to specified position, then drive electric push rod to contract, so that electric push rod drives connecting frame and adjusting block to rotate, to adjust the size of the included angle of connecting frame and adjusting block, satisfy the inclined hole processing on bumper, then punch seat rises to a certain height, first hydraulic cylinder drives first punch head to punch operation on bumper.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a punching device for producing automobile bumpers. Background Technology

[0002] Punching holes in car bumpers is a process in car body manufacturing, mainly used to install components such as radar, license plates, and tow hooks. It directly affects the safety performance and appearance quality of the car and is an indispensable and important part of the car body manufacturing process.

[0003] A search revealed a Chinese patent publication number, CN223043445U, which discloses an automatic punching device for automotive front bumpers. This patent uses two positioning clamps to hold the bumper, ensuring its stability during the punching process. Simultaneously, a lead screw drives the movement of a lifting cylinder, enabling multi-point punching of the bumper. However, this device has certain drawbacks: the lifting cylinder can only perform vertically downward punching operations. If the angled holes on the bumper are punched vertically, it may lead to localized deformation and cracking. Utility Model Content

[0004] The purpose of this invention is to provide a punching device for producing automobile bumpers in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A punching device for producing car bumpers includes a housing, a fixing block fixed on the bottom wall of the housing, a punching seat above the fixing block, a bracket fixed on the top wall of the housing, and an adjustment mechanism on the bracket.

[0007] The adjustment mechanism includes two adjustment blocks, which are symmetrically slidably connected to both sides of the bracket. A connecting frame is rotatably connected to the side of the adjustment block away from the fixed block. The connecting frame is L-shaped with its opening away from the fixed block. A first hydraulic cylinder is fixedly installed on the connecting frame. A first punch head is fixedly connected to the output shaft of the first hydraulic cylinder. An electric push rod is rotatably connected to the side of the adjustment block close to the fixed block. The lower end of the electric push rod is hinged to the connecting frame.

[0008] Preferably, the bracket has symmetrical grooves on both sides, and a bidirectional lead screw is rotatably connected in the groove. The bidirectional lead screw is threadedly connected to the adjusting blocks on both sides, and an adjusting motor is installed on one side of the bidirectional lead screw.

[0009] Preferably, a movable lead screw is rotatably connected inside the fixed block, and a sliding block is threadedly connected to the movable lead screw. A movable motor is fixed to the front end of the fixed block, and the output shaft of the movable motor is fixedly connected to the movable lead screw.

[0010] Preferably, two symmetrical hydraulic push rods are fixedly connected to the upper end of the sliding block, and a punch seat is fixedly installed on the upper end of the hydraulic push rods. The punch seat is an arc shape with the opening facing downwards.

[0011] Preferably, a fixed cylinder is fixedly connected to the lower end of the bracket, a threaded rod is rotatably connected inside the fixed cylinder, a lifting column is threadedly connected to the threaded rod, and a guide strip is fixed to one side of the lifting column.

[0012] Preferably, a drive motor is fixedly installed at the upper end of the housing, the output shaft of the drive motor is fixedly connected to the threaded rod, and a pressure plate is fixed at the lower end of the lifting column, the pressure plate being E-shaped.

[0013] Preferably, the lower end of the bracket is provided with two second hydraulic cylinders, which are symmetrically fixed on both sides of the fixed cylinder, and the output shaft of the second hydraulic cylinder is fixed with a second punch head.

[0014] The beneficial effects are as follows: the two adjustment blocks are adjusted to the designated positions, and then the electric push rod is driven to retract, so that the electric push rod drives the connecting frame and the adjustment block to rotate, thereby adjusting the angle between the connecting frame and the adjustment block to meet the requirements of the oblique hole processing on the bumper. Then, after the punching seat rises to a certain height, the first hydraulic cylinder drives the first punching head to perform punching operation on the bumper.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a punching device for producing automobile bumpers as described in this utility model;

[0018] Figure 2 This is a front view of a punching device for producing automobile bumpers as described in this utility model;

[0019] Figure 3 yes Figure 2 Partial sectional view of the structure;

[0020] Figure 4 yes Figure 3 Enlarged view of point A;

[0021] Figure 5 yes Figure 3 Enlarged view of point B.

[0022] The reference numerals in the attached drawings are explained as follows: 101, housing; 102, fixing block; 103, bracket; 201, moving lead screw; 202, sliding block; 203, moving motor; 301, hydraulic push rod; 302, punching seat; 401, adjusting block; 402, connecting frame; 403, first hydraulic cylinder; 404, first punching head; 405, electric push rod; 501, groove; 502, bidirectional lead screw; 503, adjusting motor; 601, fixing cylinder; 602, lifting column; 603, pressure plate; 701, second hydraulic cylinder; 702, second punching head. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a punching device for producing car bumpers includes a housing 101, a fixing block 102 fixed on the bottom wall of the housing 101, a punching seat 302 above the fixing block 102, a bracket 103 fixed on the top wall of the housing 101, and an adjustment mechanism on the bracket 103.

[0027] The adjustment mechanism includes two adjusting blocks 401, which are symmetrically slidably connected to both sides of the bracket 103. A connecting frame 402 is rotatably connected to the side of each adjusting block 401 away from the fixed block 102. The connecting frame 402 is L-shaped with its opening away from the fixed block 102. A first hydraulic cylinder 403 is fixedly mounted on the connecting frame 402. A first punch head 404 is fixedly connected to the output shaft of the first hydraulic cylinder 403. An electric push rod 405 is rotatably connected to the side of each adjusting block 401 closest to the fixed block 102. The lower end is hinged to the connecting frame 402. When in use, the bumper is placed on the punching seat 302, and then the adjusting blocks 401 on both sides are adjusted to the designated position. Then, the electric push rod 405 is driven to retract, so that the electric push rod 405 drives the connecting frame 402 and the adjusting block 401 to rotate, thereby adjusting the included angle between the connecting frame 402 and the adjusting block 401 to meet the requirements of the oblique hole processing on the bumper. After the punching seat 302 rises to a certain height, the first hydraulic cylinder 403 drives the first punching head 404 to perform punching operation on the bumper.

[0028] The bracket 103 has symmetrical grooves 501 on both sides. A bidirectional lead screw 502 is rotatably connected in the groove 501. The bidirectional lead screw 502 is threadedly connected to the adjusting blocks 401 on both sides. An adjusting motor 503 is installed on one side of the bidirectional lead screw 502. The adjusting motor 503 drives the bidirectional lead screw 502 to rotate, so that the bidirectional lead screw 502 and the adjusting block 401 are threadedly engaged, causing the adjusting blocks 401 on both sides to move towards each other.

[0029] A movable lead screw 201 is rotatably connected inside the fixed block 102. A sliding block 202 is threadedly connected to the movable lead screw 201. A movable motor 203 is fixed at the front end of the fixed block 102. The output shaft of the movable motor 203 is fixedly connected to the movable lead screw 201. The movable motor 203 drives the movable lead screw 201 to rotate. Through the threaded engagement between the movable lead screw 201 and the sliding block 202, the sliding block 202 is driven to move downwards towards the first punch head 404.

[0030] Two symmetrical hydraulic push rods 301 are fixedly connected to the upper end of the sliding block 202. The punch seat 302 is fixedly installed on the upper end of the hydraulic push rod 301. The punch seat 302 is an arc shape with the opening facing downward. The hydraulic push rod 301 drives the punch seat 302 to drive the bumper to rise.

[0031] A fixed cylinder 601 is fixedly connected to the lower end of the bracket 103. A threaded rod is rotatably connected inside the fixed cylinder 601. A lifting column 602 is threadedly connected to the threaded rod. A guide strip is fixed to one side of the lifting column 602.

[0032] A drive motor is fixedly installed on the upper end of the housing 101. The output shaft of the drive motor is fixedly connected to the threaded rod. A pressure plate 603 is fixed at the lower end of the lifting column 602. The pressure plate 603 is E-shaped. The drive motor drives the threaded rod to rotate. Through the threaded engagement between the threaded rod and the lifting column 602, the pressure plate 603 moves downward to press the bumper.

[0033] The lower end of the bracket 103 is provided with two second hydraulic cylinders 701. The two second hydraulic cylinders 701 are symmetrically fixed on both sides of the fixed cylinder 601. The output shaft of the second hydraulic cylinder 701 is fixed with a second punch head 702. The second hydraulic cylinder 701 drives the second punch head 702 to descend and punch vertically in the bumper.

[0034] Working principle: During use, the bumper is placed on the punching seat 302. The moving motor 203 drives the moving screw 201 to rotate. Through the threaded engagement between the moving screw 201 and the sliding block 202, the sliding block 202 moves downwards towards the first punch head 404. The hydraulic push rod 301 drives the punching seat 302, raising the bumper to a certain height. Then, the drive motor drives the threaded rod to rotate. Through the threaded engagement between the threaded rod and the lifting column 602, the pressure plate 603 moves downwards to press the bumper. Subsequently, the adjusting motor 503 drives the bidirectional screw 502 to rotate, causing the bidirectional screw... The rod 502 and the adjusting block 401 are threaded together, causing the two adjusting blocks 401 on both sides to move towards each other. The two adjusting blocks 401 are adjusted to the designated position, and the electric push rod 405 is driven to retract. The electric push rod 405 drives the connecting frame 402 and the adjusting block 401 to rotate, thereby adjusting the included angle between the connecting frame 402 and the adjusting block 401 to meet the requirements of the oblique hole processing on the bumper. The first hydraulic cylinder 403 drives the first punching head 404 to punch the bumper, while the second hydraulic cylinder 701 drives the second punching head 702 to descend and punch the bumper vertically.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A punching device for producing automobile bumpers, comprising a housing (101), wherein a fixing block (102) is fixed on the bottom wall of the housing (101), characterized in that: A punch seat (302) is provided above the fixing block (102), and a bracket (103) is fixed on the top wall of the box (101). An adjustment mechanism is provided on the bracket (103). The adjustment mechanism includes two adjustment blocks (401), which are symmetrically slidably connected to both sides of the bracket (103). A connecting frame (402) is rotatably connected to the side of the adjustment block (401) away from the fixed block (102). The connecting frame (402) is L-shaped with an opening away from the fixed block (102). A first hydraulic cylinder (403) is fixedly installed on the connecting frame (402). A first punch head (404) is fixedly connected to the output shaft of the first hydraulic cylinder (403). An electric push rod (405) is rotatably connected to the side of the adjustment block (401) close to the fixed block (102). The lower end of the electric push rod (405) is hinged to the connecting frame (402).

2. The punching equipment for producing automobile bumpers according to claim 1, characterized in that: The bracket (103) has symmetrical grooves (501) on both sides. A bidirectional lead screw (502) is rotatably connected in the groove (501). The bidirectional lead screw (502) is threadedly connected to the adjusting blocks (401) on both sides. An adjusting motor (503) is installed on one side of the bidirectional lead screw (502).

3. The punching equipment for producing automobile bumpers according to claim 1, characterized in that: A movable lead screw (201) is rotatably connected inside the fixed block (102), and a sliding block (202) is threadedly connected to the movable lead screw (201). A movable motor (203) is fixed at the front end of the fixed block (102), and the output shaft of the movable motor (203) is fixedly connected to the movable lead screw (201).

4. The punching equipment for producing automobile bumpers according to claim 3, characterized in that: The upper end of the sliding block (202) is fixedly connected to two symmetrical hydraulic push rods (301), and the punch seat (302) is fixedly installed on the upper end of the hydraulic push rods (301). The punch seat (302) is an arc shape with the opening facing downward.

5. The punching equipment for producing automobile bumpers according to claim 1, characterized in that: The lower end of the bracket (103) is fixedly connected to a fixed cylinder (601), and a threaded rod is rotatably connected inside the fixed cylinder (601). The threaded rod is threadedly connected to a lifting column (602), and a guide strip is fixed on one side of the lifting column (602).

6. The punching equipment for producing automobile bumpers according to claim 5, characterized in that: A drive motor is fixedly installed on the upper end of the housing (101), and the output shaft of the drive motor is fixedly connected to the threaded rod. A pressure plate (603) is fixed on the lower end of the lifting column (602), and the pressure plate (603) is E-shaped.

7. A punching device for producing automobile bumpers according to claim 6, characterized in that: The lower end of the bracket (103) is provided with two second hydraulic cylinders (701), which are symmetrically fixed on both sides of the fixed cylinder (601). The output shaft of the second hydraulic cylinder (701) is fixed with a second punch head (702).

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