Stamping head of wire harness buckle

Abstract

The stamping head is fixedly installed on a lifting seat of a stamping mechanism through a connecting rod, a guide rod is fixed to the bottom of the lifting seat, the guide rod is movably matched with a lifting template, a reset spring is arranged on the guide rod in a sleeving mode, the stamping head is located below the lifting template, and under the action of the reset spring, the wire harness buckle can be stamped. A gap is formed between the lifting template and the bottom face of the lifting base, and a stand column extending downwards is arranged on the lifting template. The bottom surface of the lifting seat is movably matched with a push block, the back of the push block is matched with a telescopic spring, the top of the push block is provided with a wedge-shaped structure protruding forwards, and the wedge-shaped structure is matched in a gap between the lifting template and the bottom surface of the lifting seat; a shovel block is arranged at the bottom of the push block. During stamping, the stand column presses the product, the stamping head continues to descend to stamp the product, meanwhile, the wedge-shaped structure is extruded out of the gap between the lifting template and the lifting base, and the push block moves backwards. And after stamping is completed, the lifting seat ascends, the push block advances, and the shovel block shovels off the connecting part of the product, so that smooth stamping is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of wire harness processing, and in particular to wire harness processing equipment. Background Art

[0002] The metal buckle that is sleeved on the end of the wiring harness is initially a U-shaped metal part. A connector is provided at the bottom of the U-shaped metal part, and the connector is fixedly connected to the metal strip. A batch of U-shaped metal parts are fixed on the metal strip, and the metal strip is conveyed forward into the stamping equipment. The worker supplies the wiring harness in front of the stamping equipment so that the end of the wiring harness extends into the U-shaped metal part. The stamping head of the stamping equipment closes the open end of the U-shaped metal part and presses it against the end of the wiring harness. After the stamping head stamps the U-shaped metal part and the U-shaped metal part is wrapped around the end of the wiring harness, the connector connecting the U-shaped metal part and the metal strip will not necessarily fall off the metal strip, resulting in the U-shaped metal part still being connected to the metal strip. Summary of the invention

[0003] The technical problem solved by the present invention is as follows: after the punching head punches the U-shaped metal part and the U-shaped metal part is wrapped around the end of the wiring harness, the connector connecting the U-shaped metal part and the metal strip will not necessarily fall off the metal strip, resulting in the U-shaped metal part still being connected to the metal strip.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a punching head for a wire harness buckle, which is fixedly mounted on a lifting seat of a punching mechanism through a connecting rod, a guide rod is fixed at the bottom of the lifting seat, the guide rod is movably matched with a lifting template, a reset spring is sleeved on the guide rod, the connecting rod passes through the lifting template, the punching head is located below the lifting template, under the action of the reset spring, there is a gap between the lifting template and the bottom surface of the lifting seat, a column extending downward is provided on the lifting template, and the bottom end of the column is lower than the punching head;

[0005] The bottom surface of the lifting seat is movably equipped with a push block, the back of the push block is equipped with a telescopic spring, the top of the push block is provided with a forward convex wedge structure, the wedge structure cooperates in the gap between the lifting template and the bottom surface of the lifting seat; the bottom of the push block is provided with a shovel block, the shovel block extends forward into the recessed structure of the punching head.

[0006] When the punch head punches the U-shaped metal part, the worker places the wire harness in the U-shaped metal part, the lifting seat descends, the column first presses against the metal strip, the lifting template remains stationary, the lifting seat continues to descend, the punch head descends along the guide rod, the reset spring is compressed, and the column presses the metal strip tightly against the product carrier. Since the lifting template remains stationary and the lifting seat continues to descend, the gap between the lifting template and the lifting seat becomes smaller, the wedge-shaped structure is squeezed out, the push block is driven to move backward, and the shovel block moves backward to make way for the punch head to punch the U-shaped metal part, the telescopic spring is compressed, and the elastic potential energy is accumulated. The punch head that continues to descend causes the U-shaped metal part to enter the concave structure of the punch head, and the concave structure bends the two ends of the U-shaped metal part so that the U-shaped metal part wraps the end of the wire harness. At this time, the stamping is completed. Under the restriction of the lifting template, the lifting seat cannot continue to descend, and the punch head cannot descend either. Afterwards, the lifting seat is driven by the cylinder or oil cylinder or other driving unit to rise and reset. In this process, under the action of the reset spring, the lifting template remains stationary first, and the column still presses the metal strip. The punch head that rises with the lifting seat is separated from the U-shaped metal part. At the same time, the gap between the lifting template and the lifting seat gradually increases. Under the action of the telescopic spring, the wedge-shaped structure enters the gap between the lifting template and the lifting seat, and the shovel block moves forward and enters the recessed structure of the punch head to cut off the connection between the U-shaped metal part and the metal strip. Since the column still presses the metal strip, the shovel block can effectively cut off the connection, while the metal strip remains stationary. Afterwards, the end of the U-shaped metal part wrapped by the wire harness moves forward out of the recessed structure of the punch head.

[0007] A rear baffle is fixed on the rear side wall of the lifting seat, a horizontal guide shaft is fixed on the rear baffle, a guide hole is provided on the push block, a reset spring is sleeved on the horizontal guide shaft and is located between the push block and the rear baffle, and the guide hole cooperates with the horizontal guide shaft.

[0008] The bottom of the lifting seat is provided with an internal threaded hole and a spring countersunk hole, the internal threaded hole and the spring countersunk hole are concentric, the top end of the guide rod is screwed in the internal threaded hole, the top end of the reset spring is fitted in the spring countersunk hole, and the bottom end of the reset spring is pressed against the lifting template.

[0009] The lifting template is provided with a through hole, the bottom end of the connecting rod is welded to the punching head, the connecting rod passes through the through hole, the top end of the connecting rod is provided with a neck, the neck is provided with an external thread, the top end of the connecting rod is matched in the connecting hole position of the lifting seat, and the neck of the connecting rod is screwed with a fastening nut.

[0010] The columns are arranged on both sides of the lifting template, and the columns are located on both sides of the punching head.

[0011] The number of the horizontal guide shafts is a pair distributed up and down, and the horizontal guide shafts are fixedly mounted on the rear baffle by fastening bolts.

[0012] The present invention has the following technical advantages:

[0013] First, when the column of the lifting template presses the metal strip, the punch head punches the U-shaped metal part, which is beneficial to improve the quality of punching;

[0014] Second, when the column of the lifting template presses the metal strip, the return spring has a buffering effect on the descent of the punch head, which is conducive to the concave structure of the punch head to effectively bend the two ends of the U-shaped metal part, which is conducive to improving product quality;

[0015] Third, the lifting template limits the stamping range of the stamping head, which is beneficial to improving product quality;

[0016] Fourth, after the stamping is completed, during the rising and resetting process, the column still keeps pressing the metal strip for a period of time, which can make the U-shaped metal part separate from the concave structure of the punch head, avoid the U-shaped metal part from being stuck in the concave structure and rising therewith, which is conducive to product unloading;

[0017] Fifth, the shovel block enters the recessed structure of the punching head only after the lifting seat rises to a certain height, and shovels off the connector between the U-shaped metal part and the metal strip. At this time, the metal strip is pressed by the column. Therefore, the connector is shoveled off at a high position, that is, close to the bottom of the U-shaped metal part. In this way, less connector residue is left at the end of the wiring harness, which is beneficial to improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings:

[0019] Figure 1 The figure is a schematic diagram of the punching head of the wire harness buckle;

[0020] Figure 2 for Figure 1 Right view of;

[0021] Figure 3 for Figure 1 AA section view;

[0022] Figure 4 The schematic diagram of the punch head working of the harness buckle;

[0023] Figure 5 for Figure 4 BB section view.

[0024] Explanation of symbols in the figure:

[0025] 10. Punching head; 11. Connecting rod; 12. Concave structure; 13. Fastening nut;

[0026] 20. Lifting seat;

[0027] 30. Lifting template; 31. Guide rod; 32. Return spring; 33. Column;

[0028] 40. Push block; 41. Telescopic spring; 42. Wedge structure; 43. Shovel block;

[0029] 50. Rear baffle; 51. Horizontal guide shaft; 53. Fastening bolts;

[0030] 80. Wiring harness;

[0031] 90. U-shaped metal part; 91. Metal strip; 92. Connecting part. DETAILED DESCRIPTION

[0032] Combination Figure 1 , Figure 3 A punching head for a wire harness buckle is fixedly mounted on a lifting seat 20 of a punching mechanism through a connecting rod 11. A guide rod 31 is fixed to the bottom of the lifting seat. The guide rod is movably matched with a lifting template 30. A reset spring 32 is sleeved on the guide rod. The connecting rod passes through the lifting template. The punching head is located below the lifting template. Under the action of the reset spring, there is a gap between the lifting template and the bottom surface of the lifting seat. The lifting template is provided with a column 33 extending downward, and the bottom end of the column is lower than the punching head.

[0033] The bottom surface of the lifting seat 20 is movably equipped with a push block 40, the back of the push block is equipped with a telescopic spring 41, the top of the push block is provided with a forward-convex wedge structure 42, the wedge structure is fitted in the gap between the lifting template and the bottom surface of the lifting seat; the bottom of the push block is provided with a shovel block 43, the shovel block extends forward into the recessed structure 12 of the punch head.

[0034] A rear baffle 50 is fixed on the rear side wall of the lifting seat 20, a horizontal guide shaft 51 is fixed on the rear baffle, a push block is provided with a guide hole, a telescopic spring 41 is sleeved on the horizontal guide shaft and is located between the push block 40 and the rear baffle, and the guide hole cooperates with the horizontal guide shaft.

[0035] The bottom of the lifting seat 20 is provided with an internal threaded hole and a spring countersunk hole, the internal threaded hole and the spring countersunk hole are concentric, the top end of the guide rod 31 is screwed in the internal threaded hole, the top end of the reset spring 32 is fitted in the spring countersunk hole, and the bottom end of the reset spring is pressed against the lifting template 30.

[0036] The lifting template 30 is provided with a through hole, the bottom end of the connecting rod 11 is welded to the punch head 10, the connecting rod passes through the through hole, the top end of the connecting rod is provided with a neck, the neck is provided with an external thread, the top end of the connecting rod is matched in the connecting hole position of the lifting seat 20, and the neck of the connecting rod is screwed with a fastening nut 13.

[0037] The columns 33 are arranged on both sides of the lifting template 30 , and the columns are located on both sides of the punching head 10 .

[0038] The number of the horizontal guide shafts 51 is a pair distributed vertically, and the horizontal guide shafts are fixedly mounted on the rear baffle 50 by fastening bolts 53 .

[0039] refer to Figure 4 , Figure 5 When the punch head 10 punches the U-shaped metal part 90, the worker places the wire harness 80 in the U-shaped metal part. Driven by the air cylinder, oil cylinder or other drive unit, the lifting seat 20 descends, and the column 33 first presses against the metal strip 91. The lifting template 30 remains stationary, and the lifting seat 20 continues to descend. The punch head 10 descends along the guide rod 31, the return spring 32 is compressed, and the column 33 presses the metal strip 91 against the product carrier. Since the lifting template 30 remains stationary and the lifting seat 20 continues to descend, the gap between the lifting template 30 and the lifting seat becomes smaller, and the wedge-shaped structure 42 is squeezed out, driving the push block 40 to move backward, and the shovel block 43 moves backward to make way for the punch head 10 to punch the U-shaped metal part 90. The telescopic spring 41 is compressed and accumulates elastic potential energy. The punch head 10 continues to descend, causing the U-shaped metal part 90 to enter the recessed structure 12 of the punch head. The recessed structure bends the two ends of the U-shaped metal part 90 so that the U-shaped metal part wraps the end of the wiring harness 80. At this time, the stamping is completed. Under the restriction of the lifting template 30, the lifting seat 20 cannot continue to descend, and the punch head 10 cannot descend either. Afterwards, the lifting seat 20 rises and resets. In this process, under the action of the reset spring 32, the lifting template 30 remains stationary first, and the column 33 still presses the metal strip 91. The punch head 10 that rises with the lifting seat is separated from the U-shaped metal part 90. At the same time, the gap between the lifting template 30 and the lifting seat 20 gradually increases. Under the action of the telescopic spring 41, the wedge structure 42 enters the gap between the lifting template 30 and the lifting seat 20, and the shovel block 43 moves forward and enters the recessed structure 12 of the punch head to cut off the connecting piece 92 between the U-shaped metal part 90 and the metal strip 91. Since the column 33 still presses the metal strip 91, the shovel block 43 can effectively cut off the connecting piece 92, while the metal strip 91 remains stationary. Afterwards, the end of the wire harness 80 wrapped around the U-shaped metal part 90 moves forward out of the recessed structure 12 of the punch head.

[0040] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A punching head for a wire harness buckle, fixedly mounted on a lifting seat (20) of a punching mechanism through a connecting rod (11), characterized in that: A guide rod (31) is fixed at the bottom of the lifting seat, and the guide rod is movably matched with the lifting template (30). A reset spring (32) is sleeved on the guide rod. The connecting rod passes through the lifting template. The punch head is located below the lifting template. Under the action of the reset spring, a gap is formed between the lifting template and the bottom surface of the lifting seat. The lifting template is provided with a column (33) extending downward, and the bottom end of the column is lower than the punch head. The bottom surface of the lifting seat (20) is movably matched with a push block (40), the back of the push block is equipped with a telescopic spring (41), the top of the push block is provided with a forward convex wedge structure (42), the wedge structure is matched in the gap between the lifting template and the bottom surface of the lifting seat; the bottom of the push block is provided with a shovel block (43), the shovel block extends forward into the recessed structure (12) of the punch head.

2. The punching head of the wire harness buckle according to claim 1, characterized in that: A rear baffle (50) is fixed on the rear side wall of the lifting seat (20), a horizontal guide shaft (51) is fixed on the rear baffle, a guide hole is provided on the push block, a telescopic spring (41) is sleeved on the horizontal guide shaft and is located between the push block (40) and the rear baffle, and the guide hole cooperates with the horizontal guide shaft.

3. The punching head of the wire harness buckle according to claim 1, characterized in that: The bottom of the lifting seat (20) is provided with an internal threaded hole and a spring countersunk hole, the internal threaded hole and the spring countersunk hole are concentric, the top end of the guide rod (31) is screwed into the internal threaded hole, the top end of the reset spring (32) is fitted into the spring countersunk hole, and the bottom end of the reset spring is pressed against the lifting template (30).

4. The punching head of the wire harness buckle according to claim 1, characterized in that: A through hole is provided on the lifting template (30), the bottom end of the connecting rod (11) is welded to the punch head (10), the connecting rod passes through the through hole, the top end of the connecting rod is provided with a neck, the neck is provided with an external thread, the top end of the connecting rod is matched in the connection hole position of the lifting seat (20), and the neck of the connecting rod is screwed with a fastening nut (13).

5. The punching head of the wire harness buckle according to claim 1, characterized in that: The columns (33) are arranged on both sides of the lifting template (30), and the columns are located on both sides of the punching head (10).

6. The punching head of the wire harness buckle according to claim 2, characterized in that: The number of the horizontal guide shafts (51) is a pair distributed up and down, and the horizontal guide shafts are fixedly mounted on the rear baffle (50) by means of fastening bolts (53).

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