Punching device for automobile hinge production

Abstract

The utility model relates to the field of punching devices, in particular to a punching device for automobile hinge production. A plurality of empty grooves are formed in the peripheral side of a lower die base, propellers are arranged in the empty grooves, clamping rods capable of moving on the lower die base are arranged at the output ends of the propellers, a plurality of buffering assemblies are arranged at the lower end of an upper die base, and the buffering assemblies are arranged on the lower die base. The buffering assembly comprises a fixing base and a buffering block, the fixing base is fixed to the lower end of the upper die base, a spring is arranged in the fixing base, the two propellers are started, the two clamping rods can move synchronously, then the other two propellers are started, and then the multiple clamping rods can provide an auxiliary positioning structure for a workpiece on the lower die base. The workpiece cannot move on the lower die after being subjected to external force, and the punching quality of the workpiece can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch device field, concretely is a punch device for automobile hinge production. BACKGROUND

[0002] It is known that automobile hinge is the mechanical device for connecting two solids and allowing the relative rotation between two, for example is used to the connection between the automobile door and the car body, and the automobile hinge needs to punch through the punch device when producing.

[0003] The patent with the publication number CN219378639U proposes a punch device for automobile hinge production, which comprises a lower die seat, a lower die and a lower guide rod are arranged on the lower die seat, a upper die seat a is slidably installed on the lower guide rod and is driven by a linear unit to move along the guide direction of the lower guide rod, a upper guide rod is arranged vertically on the upper die seat a, a upper die seat b is slidably installed on the upper guide rod, an installation rod is arranged on the lower end face of the upper die seat b, a punch head is detachably installed on the bottom of the installation rod, a holding component is arranged on the lower end face of the upper die seat a to actively hold the plate during the punching process, on the one hand, the holding is carried out during the punching process of the plate, that is, the holding and the punching are carried out at the same time, which does not affect the punching efficiency, on the other hand, the holding is driven by the motor to realize automatic holding, which reduces the labor intensity.

[0004] The structure above lacks auxiliary positioning structure for the workpiece on the lower die when in use, which will make the workpiece move on the lower die after being subjected to external force, and will affect the punching quality of the workpiece. UTILITY MODEL CONTENTS

[0005] (I) technical problems solved

[0006] In view of the deficiencies of the prior art, the utility model provides a punch device for automobile hinge production.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a punch device for automobile hinge production, comprising a lower die seat and an upper die seat, a plurality of guide rods penetrating through the upper die seat are arranged at the four corners of the lower die seat, a lifter is fixedly arranged above the lower die seat, the output end of the lifter is connected with the upper die seat, a punch head is arranged at the lower end of the upper die seat, a plurality of grooves are arranged on the side of the lower die seat, a propeller is arranged in the groove, a clamping rod capable of moving on the lower die seat is arranged at the output end of the propeller, a plurality of buffer assemblies are arranged at the lower end of the upper die seat, the buffer assembly comprises a fixed seat and a buffer block, the fixed seat is fixed at the lower end of the upper die seat, a spring is arranged in the fixed seat, and the buffer block is fixed at the lower end of the spring.

[0009] Further, the improvement of the utility model has, the pusher adopts a cylinder.

[0010] Further, the improvement of the utility model has, the inner side of the clamping rod is equipped with a plurality of ball bearings.

[0011] In order to provide a buffer effect for the bottom end of the fixed seat, the improvement of the utility model has, the bottom end of the fixed seat is fixedly provided with a buffer ring, and the buffer ring is bonded to the bottom end of the fixed seat.

[0012] Further, the improvement of the utility model has, the buffer ring is of rubber material.

[0013] In order to facilitate the assembly of the fixed seat, the improvement of the utility model has, the top end of the fixed seat is equipped with a positioning plate, and the positioning plate is fixed to the lower end of the upper die seat through screws.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a punching device for automobile hinge production, which has the following beneficial effects:

[0016] The punching device for automobile hinge production, starting two pushers, can make two clamping rods move synchronously, then starting another two pushers, and then a plurality of clamping rods can provide an auxiliary positioning structure for the workpiece on the lower die seat, so that the workpiece does not move on the die after being subjected to external force, and the punching quality of the workpiece can be improved.

[0017] When the buffer block contacts the lower die seat, the spring can be compressed, a buffer effect can be provided for the upper die seat during the descending process, and after the buffer block contacts the workpiece, a pressure can be provided for the workpiece, and the processing quality of the workpiece can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the utility model Figure 1 ;

[0019] Figure 2 Structure diagram of the utility model Figure 2 ;

[0020] Figure 3 Internal structure diagram of the fixed seat in the utility model;

[0021] Figure 4 Structure diagram of the ball bearing in the utility model;

[0022] In the drawing: 1, lower die seat; 2, upper die seat; 3, air slot; 4, pusher; 5, clamping rod; 6, guide rod; 7, lifter; 8, punching head; 9, buffer block; 10, fixed seat; 11, spring; 12, buffer ring; 13, ball bearing. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-4 A punching device for automobile hinge production, including lower die seat 1 and upper die seat 2, the four corners of lower die seat 1 are provided with a plurality of guide rods 6 penetrating through upper die seat 2, the upper of lower die seat 1 is fixedly provided with lifter 7, the output end of lifter 7 is connected with upper die seat 2, the lower end of upper die seat 2 is provided with punch head 8, the periphery of lower die seat 1 is provided with a plurality of grooves 3, the inside of groove 3 is provided with pusher 4, the output end of pusher 4 is provided with clamping rod 5 that can move on lower die seat 1, the lower end of upper die seat 2 is provided with a plurality of buffer assemblies, the buffer assembly includes fixed seat 10 and buffer block 9, fixed seat 10 is fixed at the lower end of upper die seat 2, the inside of fixed seat 10 is provided with spring 11, buffer block 9 is fixed at the lower end of spring 11, in the structure, the automobile hinge workpiece is placed on lower die seat 1, two pushers 4 are started, which can make two clamping rods 5 move synchronously, then another two pushers 4 are started, which can make a plurality of clamping rods 5 provide an auxiliary positioning structure for the workpiece on lower die seat 1, so that the workpiece does not move on the lower die after being subjected to external force, and the punching quality of the workpiece can be improved.

[0025] Lifter 7 is started, which can make upper die seat 2 descend, and punch head 8 can punch the workpiece on lower die seat 1, through the guide rod 6 provided, upper die seat 2 can be provided with a guide function in the lifting process, when buffer block 9 contacts lower die seat 1, spring 11 can be compressed, which can provide a buffer effect for upper die seat 2 in the descending process, and after buffer block 9 contacts the workpiece, the workpiece can also be provided with a pressure, which can further improve the processing quality of the workpiece.

[0026] Further, the pusher 4 adopts a pneumatic cylinder.

[0027] If the friction between clamping rod 5 and the workpiece is too large, the workpiece will not be easily moved on lower die seat 1 when adjusting the position, the inside of clamping rod 5 is provided with a plurality of balls 13, through the balls 13 provided, the friction between clamping rod 5 and the workpiece can be reduced, so that the workpiece can be easily moved on lower die seat 1 when adjusting the position.

[0028] In the structure, the bottom end of the fixing base 10 is fixedly provided with a buffer ring 12, the buffer ring 12 is bonded to the bottom end of the fixing base 10, and the buffer ring 12 can provide a buffering effect for the bottom end of the fixing base 10, so that the fixing base 10 is not easily damaged.

[0029] Further, the buffer ring 12 is made of rubber.

[0030] When the parts on the fixing base 10 are damaged, the fixing base 10 needs to be disassembled, the top end of the fixing base 10 is provided with a positioning plate, the positioning plate is fixed to the lower end of the upper mold base 2 through a screw, and the screw fixing mode has the advantage of convenient assembly.

[0031] In the description in this document, it should be noted that the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A punching device for automobile hinge production, comprising a lower die seat (1) and an upper die seat (2), a plurality of guide rods (6) penetrating through the upper die seat (2) are arranged at the four corners of the lower die seat (1), a lifter (7) is fixedly arranged above the lower die seat (1), an output end of the lifter (7) is connected with the upper die seat (2), and a punching head (8) is arranged at a lower end of the upper die seat (2), characterized in that: The lower die seat (1) is provided with a plurality of grooves (3) on the side, the inside of the groove (3) is provided with a propeller (4), the output end of the propeller (4) is provided with a clamping rod (5) which can move on the lower die seat (1), the lower end of the upper die seat (2) is provided with a plurality of buffer assemblies, the buffer assembly comprises a fixed seat (10) and a buffer block (9), the fixed seat (10) is fixed on the lower end of the upper die seat (2), the inside of the fixed seat (10) is provided with a spring (11), the buffer block (9) is fixed on the lower end of the spring (11). ​ 2. The punching device for producing an automobile hinge according to claim 1, characterized in that: The propeller (4) is a gas cylinder.

3. The punching device for producing an automobile hinge according to claim 2, characterized in that: The inside of the clamping rod (5) is provided with a plurality of balls (13).

4. The punching device for producing an automobile hinge according to claim 3, characterized in that: The bottom end of the fixed seat (10) is fixedly provided with a buffer ring (12), the buffer ring (12) is bonded to the bottom end of the fixed seat (10).

5. The punching device for producing an automobile hinge according to claim 4, characterized in that: The buffer ring (12) is made of rubber.

6. The punching device for producing an automobile hinge according to claim 5, characterized in that: The top end of the fixed seat (10) is provided with a positioning plate, and the positioning plate is fixed on the lower end of the upper die seat (2) by screws.

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