Stamping mechanism for metal buckle at end part of wire harness

Abstract

The invention discloses a wire harness end metal buckle stamping mechanism which comprises a vertical back plate, a lifting seat movably matched on the vertical back plate and a horizontal carrying plate fixedly arranged on the vertical back plate, a stamping head is arranged at the bottom of the lifting seat, a swing arm is hinged to the vertical back plate and is in linkage with the lifting seat, a lever piece is arranged at the bottom of the swing arm, and the horizontal carrying plate is in linkage with the lever piece. A pushing claw is arranged at one end of the lever piece, a pushing opening is formed in the metal strip, and the tip end of the pushing claw can stretch into the pushing opening. And the punching head descends to drive the swing arm to swing upwards, and the tip end of the pushing claw backwards retreats from the pushing opening of the metal strip, moves backwards along the metal strip and extends into the next pushing opening of the metal strip. And the punching head ascends and resets after punching the U-shaped metal piece, the swing arm downwards swings, and the push pawl forwards pushes the metal strip, so that the next U-shaped metal piece comes to the position below the punching head. By means of linkage of the stamping head and the pushing claw, stamping and feeding of the metal strip are conducted in sequence, and it is guaranteed that the U-shaped metal piece on the metal strip is accurately conveyed to the position under the stamping head.

Description

Technical Field

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

[0002] The metal buckle that is sleeved on the end of the wire harness is initially a U-shaped metal piece. A connector is provided at the bottom of the U-shaped metal piece, which is fixedly connected to the metal strip. A batch of U-shaped metal pieces are fixed on the metal strip, and the metal strip is conveyed forward into the stamping equipment. The worker supplies the wire harness in front of the stamping equipment so that the end of the wire harness extends into the U-shaped metal piece. The stamping head of the stamping equipment closes the open end of the U-shaped metal piece and presses it against the end of the wire harness. The forward conveying of the metal strip is controlled by two pairs of conveying rollers. The two pairs of conveying rollers are located on both sides of the metal strip, respectively clamping the edges of both sides of the metal strip and conveying the metal strip forward. Since the metal strip and the conveying rollers are prone to slipping, the conveying is inaccurate, and it is difficult for the U-shaped metal piece to be accurately located directly below the stamping head. Summary of the invention

[0003] The technical problem solved by the present invention is that the metal strip and the conveying roller are prone to slipping, resulting in the conveying roller being unable to accurately convey the U-shaped metal part to the bottom of the punching head.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a stamping mechanism for a metal buckle at the end of a wire harness comprises a vertical back plate, a lifting seat movably fitted on the vertical back plate, and a horizontal carrier plate fixedly arranged on the vertical back plate, a stamping head is arranged at the bottom of the lifting seat, the horizontal carrier plate is located below the stamping head, a metal strip guide groove is arranged on the horizontal carrier plate, a swing arm is hinged on the vertical back plate, a V-shaped track groove is arranged on the swing arm, a columnar member is fitted in the V-shaped track groove, the columnar member is fixed on the side extension arm of the lifting seat, a lever member is arranged at the bottom of the swing arm, both ends of the lever member can swing, a push claw is arranged at one end of the lever member, and the end of the lever member provided with the push claw has a tendency to swing downward; a push opening is arranged on the metal strip, and the tip of the push claw can extend into the push opening of the metal strip in the metal strip guide groove.

[0005] An installation plate can be added to the top of the vertical backplane, and a driving unit, such as a cylinder or a hydraulic cylinder, can be set on the installation plate to drive the lifting seat to rise and fall. Under the guidance of the guide part, the metal bar enters the guide groove of the metal bar, and the U-shaped metal part on the metal bar comes to the bottom of the punch head. The worker inserts the end of the wire harness into the U-shaped metal part. The punch head descends, and at the same time, the column drives the swing arm to swing up, and the tip of the push claw exits the push opening of the metal bar backward, moves backward along the metal bar, and extends into the next push opening of the metal bar. The descending punch head punches the U-shaped metal part, closing it and wrapping it around the end of the wire harness. After that, the punch head rises and resets, and the column resets accordingly, the swing arm swings down, and the push claw pushes the metal bar forward, so that the next U-shaped metal part comes to the bottom of the punch head.

[0006] A swing arm hinge shaft is arranged on the top of the vertical back plate, and the swing arm is matched on the swing arm hinge shaft.

[0007] The bottom of the swing arm is installed with a U-shaped piece through a fastening bolt, and the middle part of the lever is installed in the U-shaped piece through a hinge shaft of the lever; the U-shaped piece is provided with a strip groove, and the fastening bolt fits in the strip groove. By loosening the fastening bolt, the worker can adjust the position of the lever and the push claw so that the push claw can accurately bring the next U-shaped metal piece on the metal strip to the right under the punch head when the swing arm swings once.

[0008] A punching seat is fixed on the lifting seat, a guide rod is fixed at the bottom of the punching seat, the guide rod is movably matched with the lifting template, a reset spring is sleeved on the guide rod, the punching head is fixed at the bottom of the lifting template, and under the action of the reset spring, there is a gap between the lifting template and the bottom surface of the punching seat.

[0009] The bottom surface of the punching 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 fits in the gap between the lifting template and the bottom surface of the punching 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.

[0010] The distance between the push openings on both sides of any U-shaped metal piece on the metal strip is equal to the distance between the two sides of the recessed structure of the punch head. When the punch head punches the U-shaped metal piece, the U-shaped metal piece enters the recessed structure of the punch head, and the two ends of the recessed structure go deep into the push openings on both sides of the U-shaped metal piece. Under the reaction force of the horizontal carrier plate and the metal strip thereon, the punch head and the lifting template rise along the guide rod, compressing the reset spring, and the lifting template acts on the wedge-shaped structure to make the push block retreat, and the push block compresses the telescopic spring. Afterwards, the narrow opening on the upper part of the recessed structure of the punch head squeezes the U-shaped metal piece, so that the U-shaped metal piece wraps the end of the wire harness. Afterwards, the punch seat rises with the lifting seat. Under the action of the reset spring, the punch head and the lifting template remain stationary while the punch seat rises. The gap between the bottom surface of the punch seat and the lifting template opens. Under the action of the telescopic spring, the push block moves forward, and the wedge-shaped structure extends into the gap between the bottom surface of the punch seat and the lifting template, while the shovel block extends forward into the recessed structure of the punch head to shovel off the connection between the metal strip and the U-shaped metal piece. The lifting seat continues to rise, the punch head moves away from the metal strip, the U-shaped metal piece wraps around the end of the wire harness and detaches from the metal strip, and the metal strip remains on the horizontal carrier plate.

[0011] A rear baffle is fixed on the bottom surface of the punching seat, a horizontal guide shaft is fixed on the rear baffle, a push block is provided with a guide hole, a reset spring sleeve is arranged 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.

[0012] A product stopper is installed on the vertical back plate, and a downward extension portion is provided at the front end of the product stopper, and the bottom end of the downward extension portion is lower than the height of the punch head after it rises and resets. The lifting seat and the punching seat where the punch head is set are provided with a hollow clearance structure, and the clearance structure avoids the product stopper. After the punching is completed, the punch head rises, and the U-shaped metal piece wrapped around the end of the wire harness may be stuck in the narrow opening at the upper part of the recessed structure of the punch head and cannot be separated, and rises with the punch head. When the wire harness is blocked by the downward extension portion, the U-shaped metal piece in the punch head and the end of the wire harness can be separated downward.

[0013] The surface of the metal strip is smooth. The present invention utilizes the linkage between the punch head and the push claw to make the punching and the feeding of the metal strip be carried out in sequence, ensuring that the U-shaped metal piece on the metal strip is accurately delivered to the bottom of the punch head. In addition, during the punching process, the U-shaped metal piece can be automatically separated from the metal strip, and after the punching is completed, the wire harness end can be separated from the punch head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the stamping mechanism of the metal buckle at the end of the wire harness;

[0016] Figure 2 for Figure 1 AA cross-sectional view of the middle guide member 60;

[0017] Figure 3 for Figure 1 A top view of

[0018] Figure 4 for Figure 1 BB cross-sectional view;

[0019] Figure 5 for Figure 1 Enlarged view of point C in the middle;

[0020] Figure 6 for Figure 4 Enlarged view of point D in the middle.

[0021] Explanation of symbols in the figure:

[0022] 10. Vertical back plate; 11. Swing arm hinge shaft; 12. Product stopper; 121. Downward extension;

[0023] 20. Lifting seat; 21. Side extension arm; 22. Yielding structure;

[0024] 30. Horizontal carrier plate; 31. Metal strip guide groove;

[0025] 40. Punching head; 401. Concave structure; 41. Punching seat; 42. Guide rod; 43. Lifting template; 44. Reset spring; 45. Push block; 451. Wedge structure; 452. Shovel block; 46. Telescopic spring; 47. Rear baffle; 48. Horizontal guide shaft;

[0026] 50, swing arm; 51, V-shaped track groove; 52, columnar member; 53, lever member; 531, push claw; 532, lever member hinge shaft; 54, fastening bolt; 55, U-shaped member;

[0027] 60. Guide member;

[0028] 90. U-shaped metal part; 91. Metal strip; 92. Push-opening. DETAILED DESCRIPTION

[0029] like Figure 1 , Figure 3 The punching mechanism of the metal buckle at the end of the wire harness comprises a vertical back plate 10, a lifting seat 20 movably matched on the vertical back plate, and a horizontal carrier plate 30 fixedly arranged on the vertical back plate. A punching head 40 is provided at the bottom of the lifting seat, and the horizontal carrier plate is located below the punching head. A metal strip guide groove 31 is provided on the horizontal carrier plate. A swing arm 50 is hinged on the vertical back plate. A V-shaped track groove 51 is provided on the swing arm. A columnar member 52 is matched in the V-shaped track groove. The columnar member is fixed on the side extension arm 21 of the lifting seat. A lever member 53 is provided at the bottom of the swing arm. Both ends of the lever member can swing. A push claw 531 is provided at one end of the lever member. One end of the lever member provided with the push claw has a tendency to swing downward. A push opening 92 is provided on the metal strip 91, and the tip of the push claw can extend into the push opening of the metal strip in the metal strip guide groove.

[0030] A swing arm hinge shaft 11 is provided at the top of the vertical backboard 10, and the swing arm 50 is fitted on the swing arm hinge shaft.

[0031] A U-shaped member 55 is installed at the bottom of the swing arm 50 via a fastening bolt 54, and the middle part of the lever member 53 is installed in the U-shaped member via a lever member hinge shaft 532; the U-shaped member is provided with a strip groove, and the fastening bolt fits in the strip groove.

[0032] like Figure 6The lifting seat 20 is fixed with a punching seat 41, and a guide rod 42 is fixed to the bottom of the punching seat. The guide rod is movably matched with the lifting template 43. A reset spring 44 is sleeved on the guide rod. The bottom of the lifting template is fixed with the punching head 40. Under the action of the reset spring, there is a gap between the lifting template and the bottom surface of the punching seat. The bottom surface of the punching seat 41 is movably matched with a push block 45, and the back of the push block is equipped with a telescopic spring 46. The top of the push block is provided with a forward convex wedge structure 451, which is matched in the gap between the lifting template and the bottom surface of the punching seat; the bottom of the push block is provided with a shovel block 452, which extends forward into the recessed structure 401 of the punching head. The distance between the push openings 92 on both sides of any U-shaped metal part 90 on the metal strip 91 is equal to the distance between the two sides of the recessed structure of the punching head.

[0033] A rear baffle 47 is fixed on the bottom surface of the punch seat 41, a horizontal guide shaft 48 is fixed on the rear baffle, a push block 45 is provided with a guide hole, a return spring 44 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.

[0034] like Figures 4 to 6 A product stopper 12 is installed on the vertical back plate 10, and a downward extending portion 121 is provided at the front end of the product stopper. The bottom end of the downward extending portion is lower than the height of the punch head 40 after it rises and resets. The lifting seat 20 and the punching seat 41 where the punching head is set are provided with a hollow giving way structure 22, which avoids the product stopper.

[0035] A mounting plate can be added to the top of the vertical backboard 10, and a driving unit, such as a cylinder or a hydraulic cylinder, is set on the mounting plate to drive the lifting seat 20 to move up and down. Under the guidance of the guide member 60, the metal strip 91 enters the metal strip guide groove 31, and the U-shaped metal part 90 on the metal strip comes to the bottom of the punch head 40, and the worker inserts the end of the wire harness into the U-shaped metal part 90. The punch head descends, and at the same time, the columnar member 52 drives the swing arm 50 to swing upward, and the tip of the push claw 531 exits the push opening 92 of the metal strip backward, moves backward along the metal strip, and extends into the next push opening of the metal strip 91. The descending punch head 40 punches the U-shaped metal part 90, so that it closes and wraps around the end of the wire harness. After that, the punch head rises and resets, and the columnar member 52 resets accordingly, the swing arm 50 swings downward, and the push claw 531 pushes the metal strip forward, so that the next U-shaped metal part comes to the bottom of the punch head.

[0036] When the punch head 40 punches the U-shaped metal part 90, the U-shaped metal part enters the recessed structure 401 of the punch head, and the ends of the recessed structure go deep into the push openings 92 on both sides of the U-shaped metal part 90. Under the reaction force of the horizontal carrier plate 30 and the metal strip 91 thereon, the punch head 40 and the lifting template 43 rise along the guide rod 42, compressing the reset spring 44, and the lifting template acts on the wedge-shaped structure 451, causing the push block 45 to retreat, and the push block compresses the telescopic spring 46. Afterwards, the narrow opening at the upper part of the punch head recessed structure 401 squeezes the U-shaped metal part 90, so that the U-shaped metal part wraps the end of the wire harness. Afterwards, the punching seat 41 rises with the lifting seat 20. Under the action of the reset spring 44, the punching head 40 and the lifting template 43 remain stationary while the punching seat 41 rises. The gap between the bottom surface of the punching seat and the lifting template is opened. Under the action of the telescopic spring 46, the push block 45 moves forward, and the wedge-shaped structure 451 extends into the gap between the bottom surface of the punching seat 41 and the lifting template 43, while the shovel block 452 extends forward into the recessed structure 401 of the punching head 40 to shovel off the connection between the metal strip 91 and the U-shaped metal part 90. The lifting seat 20 continues to rise, the punching head 40 moves away from the metal strip 91, the U-shaped metal part wraps around the end of the wire harness, detaches from the metal strip, and the metal strip remains on the horizontal carrier 30.

[0037] When the punch head 40 rises, the U-shaped metal piece 90 wrapping the end of the wire harness may be stuck in the narrow opening of the upper part of the punch head recessed structure 401 and cannot be separated, and rises with the punch head. When the wire harness is blocked by the downward extending portion 121, the U-shaped metal piece in the punch head and the end of the wire harness can be separated downward.

[0038] 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 stamping mechanism for a metal buckle at the end of a wire harness, comprising a vertical back plate (10), a lifting seat (20) movably fitted on the vertical back plate, and a horizontal carrier plate (30) fixedly arranged on the vertical back plate, a stamping head (40) being arranged at the bottom of the lifting seat, the horizontal carrier plate being located below the stamping head, and a metal strip guide groove (31) being arranged on the horizontal carrier plate, characterized in that: A swing arm (50) is hingedly connected to the vertical back plate, a V-shaped track groove (51) is provided on the swing arm, a columnar member (52) is matched in the V-shaped track groove, the columnar member is fixed on the side extension arm (21) of the lifting seat, a lever member (53) is provided at the bottom of the swing arm, the two ends of the lever member can swing, a push claw (531) is provided at one end of the lever member, and the end of the lever member provided with the push claw has a tendency to swing downward; The metal strip (91) is provided with a push opening (92), and the tip of the push claw can extend into the push opening of the metal strip in the guide groove of the metal strip.

2. The punching mechanism for the metal buckle at the end of the wire harness according to claim 1, characterized in that: A swing arm hinge shaft (11) is provided at the top of the vertical backboard (10), and the swing arm (50) is matched on the swing arm hinge shaft.

3. The punching mechanism for the metal buckle at the end of the wire harness according to claim 1, characterized in that: A U-shaped member (55) is installed at the bottom of the swing arm (50) via a fastening bolt (54), and the middle of the lever member (53) is installed in the U-shaped member via a lever member hinge shaft (532); the U-shaped member is provided with a strip groove, and the fastening bolt is fitted in the strip groove.

4. The punching mechanism for the metal buckle at the end of the wire harness according to claim 1, characterized in that: A punching seat (41) is fixed on the lifting seat (20), a guide rod (42) is fixed on the bottom of the punching seat, the guide rod is movably matched with the lifting template (43), a reset spring (44) is sleeved on the guide rod, the punching head (40) is fixed on the bottom of the lifting template, and under the action of the reset spring, a gap is formed between the lifting template and the bottom surface of the punching seat; The bottom surface of the punching seat (41) is movably matched with a push block (45), the back of the push block is equipped with a telescopic spring (46), the top of the push block is provided with a forward convex wedge structure (451), the wedge structure is matched in the gap between the lifting template and the bottom surface of the punching seat; the bottom of the push block is provided with a shovel block (452), the shovel block extends forward into the concave structure (401) of the punching head; The distance between the push openings (92) on both sides of any U-shaped metal piece (90) on the metal strip (91) is equal to the distance between both sides of the recessed structure of the punching head.

5. The punching mechanism for the metal buckle at the end of the wire harness according to claim 4, characterized in that: A rear baffle (47) is fixed on the bottom surface of the punch seat (41), a horizontal guide shaft (48) is fixed on the rear baffle, a push block (45) is provided with a guide hole, a return spring (44) 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.

6. The punching mechanism for the metal buckle at the end of the wire harness according to claim 1, characterized in that: A product stopper (12) is installed on the vertical back plate (10), and a downward extension portion (121) is provided at the front end of the product stopper, and the bottom end of the downward extension portion is lower than the height of the punch head (40) after it rises and resets. The lifting seat (20) and the punching seat (41) on which the punching head is set are provided with a hollow giving way structure (22), and the giving way structure avoids the product stopper.

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