Push-pull cable bending tool

Abstract

A push-pull cable bending tool belongs to the technical field of push-pull cable processing equipment for automobile shifters, and solves the problems of low automation, high labor intensity, poor safety, low production efficiency, easy rebound after bending, and large sliding friction of the push-pull cable in the existing processing methods. It includes a fixed wheel assembly and a rotating wheel assembly, a bent pipe clamping cavity is arranged between the fixed wheel assembly and the rotating wheel assembly, the driving end of the lower part of the rotating wheel assembly is connected to the cable bending driving cylinder through a cable bending transmission mechanism, and a cable bending guide arc groove is arranged on the motion trajectory of the rotating wheel assembly; the push rod end of the push-pull cable hose is also provided with a hose end positioning mechanism and a steel cable pulling slider in sequence, and the driving end of the steel cable pulling slider is connected to the steel cable pulling cylinder. It has a reasonable design, compact structure, high automation, safety and reliability, high production efficiency, no rebound after the push-pull cable is bent, and low sliding friction, which can meet the bending angle and design and use requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of push-pull cable processing equipment for automobile shifters, and in particular relates to a push-pull cable bending tool. Background Art

[0002] At present, in the production process of automatic shifter products, it is necessary to bend the push-pull cable hose. However, the existing processing method has a low degree of automation, high labor intensity, poor safety, and low production efficiency, and cannot adapt to the mass production of automatic shifter products. In addition, the push-pull cable often rebounds after being bent, and it is difficult to ensure the required bending angle after the push-pull cable is bent. The sliding friction of the push-pull cable is large, which affects the use effect of the product. Therefore, it is necessary to improve the push-pull cable bending method and device in the prior art. Utility Model Content

[0003] The utility model aims at solving the above problems and provides a push-pull cable bending tool which has high automation, safety, reliability, high production efficiency, no rebound after the push-pull cable is bent, small sliding friction, and can meet the bending angle and design and use requirements.

[0004] The technical solution adopted by the utility model is: the push-pull cable bending tooling comprises a fixed wheel assembly and a rotating wheel assembly, and is characterized in that: a bending pipe clamping cavity for clamping the push-pull cable hose is arranged between the fixed wheel assembly and the rotating wheel assembly, the driving end of the lower part of the rotating wheel assembly is connected with the telescopic end of the cable bending driving cylinder through a cable bending transmission mechanism, and a cable bending guide arc groove is arranged on the motion trajectory of the rotating wheel assembly; the push rod end of the push-pull cable hose is also sequentially provided with a hose end positioning mechanism and a steel cable pulling slider, the driving end of the steel cable pulling slider is connected with the telescopic end of the steel cable pulling cylinder, and a push rod end clamping block for pressing and fixing the push rod end of the push-pull cable is arranged above the end of the steel cable pulling slider, and the push rod end clamping block is connected with the telescopic end of the clamping cylinder arranged on the side.

[0005] The cable bending transmission mechanism includes a transmission rack, which is arranged along the extension direction of the cable bending driving cylinder, and the end of the transmission rack is connected to the extension end of the cable bending driving cylinder through a joint shaft, and one side of the transmission rack is slidably connected to a fixed linear guide rail through a rack guide slider; the transmission rack is also meshed with a transmission gear arranged at the lower driving end of the rotating wheel assembly. The cable bending driving cylinder drives the transmission rack and the rack guide slider to reciprocate along the linear guide rail, and then the transmission gear meshed with the transmission rack is used to drive the rotating wheel assembly to rotate, so as to realize the bending of the push-pull cable hose.

[0006] A rack travel limit plate is arranged on the other side of the transmission rack, the rack travel limit plate is fixedly arranged on the bottom plate, and a limit block is arranged at the end of the transmission rack, so as to limit the reciprocating position of the transmission rack by the limit block at the end of the transmission rack and the limit clamping of the rack travel limit plate arranged on its side.

[0007] The fixed wheel assembly includes a vertically arranged fixed wheel vertical shaft, the upper end of which is provided with a bent pipe fixed wheel, and the lower end of which is connected to the bottom plate through a bearing. The fixed wheel vertical shaft vertically arranged on the bottom plate supports the bent pipe fixed wheel and provides a slewing support for the rotating wheel assembly, the rotating bracket and the bent pipe rotating wheel arranged thereon.

[0008] The wheel assembly includes a pipe bending rotating wheel, which is arranged on a wheel connecting frame through a rotating shaft, the wheel connecting frame is fixedly arranged on a wheel moving seat, and the wheel moving seat is movably arranged on a rotating bracket through a linear guide rail, and a wheel pressing cylinder is also fixedly arranged on the rotating bracket, and a pressing pushing head for pushing the wheel connecting frame is arranged at the telescopic end of the wheel pressing cylinder; the front end of the rotating bracket is connected to the bottom plate through a fixed wheel vertical shaft, and a transmission gear is arranged on the lower side of the front end of the rotating bracket, and the transmission gear is meshed with a transmission rack of a cable bending transmission mechanism. The transmission gear meshed with the transmission rack is used to drive the rotating bracket to rotate around the fixed wheel vertical shaft, and the rotating frame and the pipe bending rotating wheel thereon are pushed to reciprocate along the linear guide rail arranged on the rotating bracket through the telescopic movement of the wheel pressing cylinder, so as to clamp the push-pull cable hose by using the pipe bending clamping cavity formed between the pipe bending rotating wheel and the pipe bending fixed wheel.

[0009] The rotating wheel moving seat is provided with a moving seat return spring, so that when the rotating wheel pressing cylinder drives the pressing push head of the telescopic end to be retracted, the return elastic force of the moving seat return spring is used to pull the rotating wheel connecting frame and the curved pipe rotating wheel thereon back to the initial position, so as to facilitate the loading and unloading of the push-pull cable.

[0010] The hose end positioning mechanism includes a positioning connection seat, a fixed positioning block is arranged on the positioning connection seat, a movable positioning block is also arranged on the side of the fixed positioning block, and the movable positioning block is slidably connected to the upper part of the positioning connection seat through a linear guide rail, and a hose end positioning cylinder is also arranged on the positioning connection seat, and a positioning push head for pushing the movable positioning block is arranged at the telescopic end of the hose end positioning cylinder, and positioning grooves are respectively arranged on the end surfaces on the opposite sides of the fixed positioning block and the movable positioning block; a rack through hole is arranged in the middle of the lower side of the positioning connection seat for facilitating the transmission rack of the cable bending transmission mechanism to pass through. The movable positioning block is driven to reciprocate along the linear guide rail arranged on the positioning connection seat by the telescopic movement of the hose end positioning cylinder, and then the end of the push-pull cable hose is positioned and clamped by the positioning groove arranged between the movable positioning block and the fixed positioning block.

[0011] The beneficial effects of the utility model are as follows: since the utility model adopts a fixed wheel assembly and a rotating wheel assembly, a bent pipe clamping cavity for clamping a push-pull cable hose is arranged between the fixed wheel assembly and the rotating wheel assembly, the driving end of the lower part of the rotating wheel assembly is connected to the cable bending driving cylinder through a cable bending transmission mechanism, and a cable bending guide arc groove is arranged on the motion trajectory of the rotating wheel assembly; the push rod end of the push-pull cable hose is also sequentially provided with a hose end positioning mechanism and a steel cable pulling slider, the driving end of the steel cable pulling slider is connected to the steel cable pulling cylinder, a push rod end clamping block is arranged above the end of the steel cable pulling slider, and the push rod end clamping block is connected to the clamping cylinder on the side, so its design is reasonable, the structure is compact, the degree of automation is high, it is safe and reliable, the production efficiency is high, the push-pull cable does not rebound after being bent, and the cable can ensure the bending angle after being bent and can meet the design and use requirements of the push-pull cable, and the sliding friction of the push-pull cable after bending is small and can be ≤4N, and it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 yes Figure 1 A-direction view.

[0014] Figure 3 yes Figure 2 A structural schematic diagram of the cable bending transmission mechanism in FIG.

[0015] Figure 4 yes Figure 3 Top view of the .

[0016] Figure 5 yes Figure 1 Section view along line BB.

[0017] Figure 6 yes Figure 5 Top view of the .

[0018] Figure 7 yes Figure 1 A structural schematic diagram of a hose end positioning mechanism in FIG.

[0019] Figure 8 yes Figure 7 Cross-sectional view along line CC.

[0020] Fig. 9 yes Figure 1 A schematic diagram of a usage state in which the wheel assembly rotates and bends the push-pull cable hose.

[0021] Description of the numbers in the figure: 1 fixed wheel assembly, 2 rotating wheel assembly, 3 rotating wheel pressing cylinder, 4 cable bending transmission mechanism, 5 cable bending drive cylinder, 6 cylinder connecting seat, 7 cable bending guide arc groove, 8 steel cable pulling slider, 9 push rod end clamping block, 10 clamping cylinder, 11 steel cable pulling cylinder, 12 hose end positioning mechanism, 13 hose end positioning cylinder, 14 push-pull cable hose, 15 push-pull cable push rod end, 16 bottom plate, 17 joint shaft, 18 transmission rack, 19 rack guide slider, 20 linear guide rail, 21 rack travel limit plate, 22 transmission gear, 23 fixed wheel vertical shaft, 24 tapered roller bearing, 25 rotating bracket, 26 pressing push head, 27 rotating wheel moving seat, 28 moving seat reset spring, 29 rotating wheel connecting frame, 30 bending pipe rotating wheel, 31 bending pipe fixed wheel, 32 bending pipe clamping cavity, 33 positioning connecting seat, 34 fixed positioning block, 35 movable positioning block, 36 positioning push head, 37 rack through hole. DETAILED DESCRIPTION

[0022] according to Figures 1 to 9 The specific structure of the present invention is described in detail. The push-pull cable bending tool comprises a fixed wheel assembly 1 and a rotating wheel assembly 2, wherein the fixed wheel assembly 1 is composed of a vertically arranged fixed wheel vertical shaft 23, a pipe bending fixed wheel 31 is arranged at the upper end of the fixed wheel vertical shaft 23, and the lower end of the fixed wheel vertical shaft 23 is connected to the bottom plate 16 through a bearing; the fixed wheel vertical shaft 23 arranged vertically on the bottom plate 16 is used to support the pipe bending fixed wheel 31, and provide slewing support for the rotating wheel assembly 2 and the rotating bracket 25 and pipe bending rotating wheel 30 arranged thereon for rotation and movement.

[0023] The wheel assembly 2 is composed of a curved pipe rotating wheel 30, and a curved pipe clamping cavity 32 for clamping the push-pull cable hose 14 is arranged between the curved pipe rotating wheel 30 and the curved pipe fixed wheel 31, and the curved pipe clamping cavity 32 is composed of a wheel surface groove. The curved pipe rotating wheel 30 is arranged on the rotating wheel connecting frame 29 through a rotating shaft, and the rotating wheel connecting frame 29 is fixedly arranged on the rotating wheel moving seat 27, and the rotating wheel moving seat 27 is movably arranged on the rotating bracket 25 through a linear guide rail 20; the rotating bracket 25 is also fixedly arranged with a rotating wheel pressing cylinder 3, and the telescopic end of the rotating wheel pressing cylinder 3 is provided with a pressing push head 26 for pushing the rotating wheel connecting frame 29. At the same time, the front end of the rotating bracket 25 is connected to the base plate 16 through the fixed wheel vertical shaft 23, and a transmission gear 22 is arranged on the lower side of the front end of the rotating bracket 25, and the transmission gear 22 is meshed with the transmission rack 18 of the cable bending transmission mechanism 4; moreover, tapered roller bearings 24 are respectively arranged between the transmission gear 22 and the fixed wheel vertical shaft 23, and between the rotating bracket 25 and the fixed wheel vertical shaft 23.

[0024] Thus, the transmission gear 22 meshing with the transmission rack 18 is used to drive the rotating bracket 25 to rotate around the fixed wheel vertical shaft 23, and the rotating wheel pressing cylinder 3 is extended and retracted to push the rotating wheel connecting frame 29 and the pipe bending rotating wheel 30 thereon to reciprocate along the linear guide rail 20 provided on the rotating bracket 25, so as to clamp the push-pull cable hose by using the pipe bending clamping cavity 32 formed between the pipe bending rotating wheel 30 and the pipe bending fixed wheel 31. In addition, in order to facilitate the loading and unloading of the push-pull cable, a moving seat reset spring 28 is provided on the rotating wheel moving seat 27, so that when the rotating wheel pressing cylinder 3 drives the pressing push head 26 at the telescopic end to be retracted, the reset elastic force of the moving seat reset spring 28 is used to pull the rotating wheel connecting frame 29 and the pipe bending rotating wheel 30 thereon back to the initial position.

[0025] The transmission gear 22 arranged at the lower part of the rotating bracket 25 of the wheel assembly 2 is connected to the telescopic end of the cable bending driving cylinder 5 through the cable bending transmission mechanism 4, and the fixed end of the cable bending driving cylinder 5 is connected to the bottom plate 16 through the cylinder connecting seat 6; and the rotating bracket 25 of the wheel assembly 2 (including the wheel connecting frame 29 and the bending pipe rotating wheel 30 thereon) is provided with a cable bending guide arc groove 7 on the motion track. The cable bending transmission mechanism 4 includes a transmission rack 18, which is arranged along the telescopic direction of the cable bending driving cylinder 5, and the end of the transmission rack 18 is connected to the telescopic end of the cable bending driving cylinder 5 through the joint shaft 17, and one side of the transmission rack 18 is slidably connected to the fixed linear guide rail 20 through the rack guide slider 19; the transmission rack 18 is also meshed with the transmission gear 22 fixedly arranged at the lower part of the rotating bracket 25. Then, the cable bending driving cylinder 5 drives the transmission rack 18 and the rack guide slider 19 to reciprocate along the linear guide rail 20, and then the transmission gear 22 meshing with the transmission rack 18 is used to drive the rotating wheel assembly 2 to rotate, so as to achieve the bending of the push-pull cable hose. In addition, a rack travel limit plate 21 is provided on the other side of the transmission rack 18, and the rack travel limit plate 21 is fixedly arranged on the bottom plate 16, and a limit block is provided at the end of the transmission rack 18; the limit block at the end of the transmission rack 18 is engaged with the limit block of the rack travel limit plate 21 on its side to limit the reciprocating position of the transmission rack 18.

[0026] The push rod end of the push-pull cable hose to be processed is also provided with a hose end positioning mechanism 12 and a steel cable pulling slider 8 in sequence. The hose end positioning mechanism 12 includes a positioning connection seat 33 provided on the bottom plate 16, a fixed positioning block 34 is provided on the positioning connection seat 33, and a movable positioning block 35 is also provided on the side of the fixed positioning block 34; the movable positioning block 35 is slidably connected to the upper part of the positioning connection seat 33 through a linear guide rail 20. In addition, a hose end positioning cylinder 13 is also provided on the positioning connection seat 33, and a positioning push head 36 for pushing the movable positioning block 35 is provided at the telescopic end of the hose end positioning cylinder 13, and positioning grooves are respectively provided on the end faces on the opposite sides of the fixed positioning block 34 and the movable positioning block 35. A rack through hole 37 is provided in the middle of the lower side of the positioning connection seat 33, which is convenient for the transmission rack 18 of the cable bending transmission mechanism 4 to pass through. Then, by the extension and retraction of the hose end positioning cylinder 13, the movable positioning block 35 is driven to reciprocate along the linear guide rail 20 provided on the positioning connection seat 33, so as to position and clamp the end of the push-pull cable hose 14 by using the positioning groove provided between the movable positioning block 35 and the fixed positioning block 34. The driving end of the steel cable pulling slider 8 is connected to the telescopic end of the steel cable pulling cylinder 11 arranged horizontally, and a push rod end clamping block 9 for clamping the push rod end 15 of the push-pull cable is also provided above the end of the steel cable pulling slider 8, and the push rod end clamping block 9 is connected to the telescopic end of the clamping cylinder 10 arranged vertically on the side.

[0027] When the push-pull cable bending tool is used, first, the push-pull cable hose workpiece is placed flat on the bending tool, and the pressing cylinder 10 is used to drive the push rod end pressing block 9 to fix the push-pull cable push rod end 15, and then the eye-shaped joint rod at the end of the push-pull steel cable is fixed on the steel cable pulling slider 8. Then, the hose end positioning cylinder 13 of the hose end positioning mechanism 12 is used to drive the movable positioning block 35 to move along the linear guide 20 toward the fixed positioning block 34, so that the end of the push-pull cable hose 14 is fixed by the positioning groove and positioning clamp between the movable positioning block 35 and the fixed positioning block 34. Subsequently, the rotating wheel pressing cylinder 3 is used to push the rotating wheel connecting frame 29 and the bending pipe rotating wheel 30 thereon to move along the linear guide 20 set on the rotating bracket 25, and then the bending pipe clamping cavity 32 formed between the bending pipe rotating wheel 30 and the bending pipe fixed wheel 31 is used to clamp the push-pull cable hose 14. At the same time, the cable bending drive cylinder 5 drives the transmission rack 18 to move, and uses the transmission gear 22 meshing with the transmission rack 18 to drive the rotating bracket 25 of the rotating wheel assembly 2 to rotate around the fixed wheel vertical shaft 23 and along the cable bending guide arc groove 7 to achieve the bending of the push-pull cable hose 14. After the push-pull cable hose is bent to a specified angle (for example: 20 degrees counterclockwise), the bending angle is maintained, and the steel cable pulling cylinder 11 reciprocates to pull the steel cable pulling slider 8 and the push-pull cable push rod end thereon 155 times to ensure the normal push-pull movement of the steel cable in the hose. Finally, release the clamping cylinders at various locations and remove the processed push-pull cable hose workpiece.

Claims

1. A push-pull cable bending tool, comprising a fixed wheel assembly (1) and a rotating wheel assembly (2), characterized in that: A bent pipe clamping cavity (32) for clamping a push-pull cable hose (14) is provided between the fixed wheel assembly (1) and the rotating wheel assembly (2); the driving end of the lower part of the rotating wheel assembly (2) is connected to the telescopic end of the cable bending driving cylinder (5) through the cable bending transmission mechanism (4); a cable bending guide arc groove (7) is provided on the motion trajectory of the rotating wheel assembly (2); the push rod end of the push-pull cable hose (14) is also provided with a hose end positioning mechanism (12) and a steel cable pulling slider (8) in sequence; the driving end of the steel cable pulling slider (8) is connected to the telescopic end of the steel cable pulling cylinder (11); and a push rod end clamping block (9) for pressing and fixing the push rod end (15) of the push-pull cable is provided above the end of the steel cable pulling slider (8); the push rod end clamping block (9) is connected to the telescopic end of the clamping cylinder (10) provided on the side.

2. The push-pull cable bending tool according to claim 1, characterized in that: The cable bending transmission mechanism (4) comprises a transmission rack (18), the transmission rack (18) being arranged along the extension and retraction direction of the cable bending driving cylinder (5), and the end of the transmission rack (18) being connected to the extension and retraction end of the cable bending driving cylinder (5) via a joint shaft (17), and one side of the transmission rack (18) being slidably connected to a fixed linear guide rail (20) via a rack guide slider (19); the transmission rack (18) is also meshed with a transmission gear (22) provided at the lower driving end of the rotating wheel assembly (2).

3. The push-pull cable bending tool according to claim 2, characterized in that: A rack travel limit plate (21) is provided on the other side of the transmission rack (18), the rack travel limit plate (21) is fixedly arranged on the bottom plate (16), and a limit block is provided at the end of the transmission rack (18).

4. The push-pull cable bending tool according to claim 1, characterized in that: The fixed wheel assembly (1) comprises a vertically arranged fixed wheel vertical shaft (23), the upper end of the fixed wheel vertical shaft (23) is provided with a bent pipe fixed wheel (31), and the lower end of the fixed wheel vertical shaft (23) is connected to the bottom plate (16) via a bearing.

5. The push-pull cable bending tool according to claim 1, characterized in that: The wheel assembly (2) comprises a pipe bending rotating wheel (30), the pipe bending rotating wheel (30) being arranged on a wheel connecting frame (29) via a rotating shaft, the wheel connecting frame (29) being fixedly arranged on a wheel moving seat (27), and the wheel moving seat (27) being movably arranged on a rotating bracket (25) via a linear guide rail (20), a wheel pressing cylinder (3) being fixedly arranged on the rotating bracket (25), a pressing pushing head (26) for pushing the wheel connecting frame (29) being arranged at a telescopic end of the wheel pressing cylinder (3); the front end of the rotating bracket (25) is connected to a bottom plate (16) via a fixed wheel vertical shaft (23), a transmission gear (22) being arranged on the lower side of the front end of the rotating bracket (25), and the transmission gear (22) being meshed with a transmission rack (18) of a cable bending transmission mechanism (4).

6. The push-pull cable bending tool according to claim 5, characterized in that: The rotating wheel moving seat (27) is provided with a moving seat return spring (28).

7. The push-pull cable bending tool according to claim 1, characterized in that: The hose end positioning mechanism (12) comprises a positioning connection seat (33), a fixed positioning block (34) is arranged on the positioning connection seat (33), a movable positioning block (35) is also arranged on the side of the fixed positioning block (34), the movable positioning block (35) is slidably connected to the upper part of the positioning connection seat (33) through a linear guide rail (20), and a hose end positioning cylinder (13) is also arranged on the positioning connection seat (33), and a positioning push head (36) for pushing the movable positioning block (35) is arranged at the telescopic end of the hose end positioning cylinder (13), and positioning grooves are respectively arranged on the end surfaces of the fixed positioning block (34) and the movable positioning block (35) on the opposite side; and a rack through hole (37) is arranged in the middle of the lower side of the positioning connection seat (33) for facilitating the transmission rack (18) of the cable bending transmission mechanism (4) to pass through.

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