Inhaul cable pin press-fitting equipment with back pressure mechanism

Abstract

The utility model relates to the technical field of assembly, and discloses inhaul cable pin press-fitting equipment with a back pressure mechanism, which comprises a base, an L-shaped support frame and a pin storage rail are fixedly mounted on the upper side of the base, a push-in mechanism for pressing pins is mounted on the upper side of the L-shaped support frame, and a clamping mechanism for transferring the pins is mounted on the upper side of the base. A back pressure mechanism is installed on the side, away from the pin storage rail, of the L-shaped supporting frame. The back pressure mechanism comprises a first air cylinder and a supporting rod, the first air cylinder and the L-shaped supporting frame are fixedly assembled, the output end of the first air cylinder is fixedly provided with one end of the supporting rod, and the other end of the supporting rod is provided with a containing structure. According to the utility model, through the arrangement of the back pressure mechanism and the placing structure, in the pin transferring and press fitting process, the detection process of the interference assembly strength of the pin is synchronously completed, subsequent independent inspection is not needed, the number of the processes and the workload are reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly, in particular to cable pin press-assembly equipment with a counter-pressure mechanism. Background Art

[0002] When the car actuator is activated, one end of the cable is pulled, and the component connected to the other end (such as the gear lever) moves accordingly to achieve precise control. The structure of the cable mainly includes a sheath, a cable core, and end connectors (types include: ball head buckle, U-shaped hook, etc., to ensure a reliable connection between the cable and the actuator), which are used to transmit power.

[0003] During the assembly process of the cable end connector and the eccentric wheel in the actuator, the pin is used to fix the relative position, realize the docking of the end connector and the eccentric wheel, and prevent separation during movement. The docked end connector and eccentric wheel are often clamped by a robotic arm in conjunction with a fixture. After that, the robotic arm is transferred as a whole to the pressing equipment for interference insertion of the pin. It is difficult to judge whether the assembled pin has achieved the interference fit strength required by the design, and subsequent inspection is required to avoid substandard pin installation. There are many processes and a large workload.

[0004] Therefore, in order to solve the above problems, a cable pin press-fitting device with a counter-pressure mechanism is proposed. Utility Model Content

[0005] The purpose of the present invention is to provide a cable pin press-fitting device with a counter-pressure mechanism, which can detect whether the interference fit force meets the standard during the pin press-fitting process, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable pin pressing device with a back-pressure mechanism, comprising a base, an L-shaped support frame and a pin storage rail being fixedly installed on the upper side of the base, a pushing mechanism for pressing the pin being installed on the upper side of the L-shaped support frame, a clamping mechanism for transferring the pin being installed on the upper side of the base, and a back-pressure mechanism being installed on the side of the L-shaped support frame away from the pin storage rail; the back-pressure mechanism comprises a first cylinder and a support rod, the first cylinder is fixedly assembled with the L-shaped support frame, one end of the support rod is fixedly installed on the output end of the first cylinder, and a placement structure is provided at the other end of the support rod.

[0007] Optional forms of placement structure:

[0008] Form 1: the placement structure includes a first through hole opened at the front end of the support rod.

[0009] Form two, the placement structure also includes a press clamp and a screw, the support rod is provided with a rectangular groove connected to the first through hole, and both sides of the support rod are provided with wedge-shaped grooves aligned with the rectangular grooves, the press clamp is plugged into and assembled with the wedge-shaped grooves, the rear side of the press clamp is provided with a second through hole, the support rod is provided with a screw hole aligned with the second through hole, and the screw passes through the second through hole and is screwed to the screw hole.

[0010] Form three, the placement structure further includes a bushing, and the bushing is installed in the first through hole.

[0011] Specifically, the pushing mechanism includes a second cylinder, a pressure sensor and a pin. The second cylinder is fixedly installed on the top of the L-shaped support frame. The output end of the second cylinder passes through the L-shaped support frame and is fixedly installed with a pressure sensor. The lower side of the pressure sensor is fixedly installed with a pin, and the pin is located above the placement structure.

[0012] Furthermore, the pushing mechanism also includes a linear guide rail, and the side wall of the L-shaped support frame is fixedly installed with the linear guide rail, and the slider and the pin of the linear guide rail are fixedly assembled through a support arm.

[0013] Specifically, the clamping mechanism includes a third cylinder, a pneumatic clamp and a fourth cylinder. The third cylinder is fixedly installed on the upper side of the base through a support platform, and an L-shaped plate is fixedly installed on the output end of the third cylinder. The fourth cylinder is fixedly installed on the lower side of the L-shaped plate, and the output end of the fourth cylinder passes through the L-shaped plate and is fixedly installed with a pneumatic clamp.

[0014] Specifically, a pair of positioning cylinders are fixedly installed on the upper side of the base.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] By setting up the counter-pressure mechanism and the placement structure, the pin interference assembly force detection process is completed simultaneously during the pin transfer and press-fitting process, without the need for subsequent separate inspection, reducing the number of processes and workload, and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural perspective diagram of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first placement structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second placement structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the third placement structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the clamping mechanism of the present utility model.

[0022] In the figure: 1. base, 2. positioning cylinder, 3. back pressure mechanism, 31. first cylinder, 32. support rod, 4. L-shaped support frame, 5. pushing mechanism, 51. second cylinder, 52. pressure sensor, 53. linear guide, 54. pin, 6. clamping mechanism, 61. third cylinder, 62. pneumatic clamp, 63. L-shaped plate, 64. fourth cylinder, 7. pin storage rail, 8. placement structure, 81. first through hole, 82. bushing, 83. press clamp, 84. screw, 85. wedge groove, 86. rectangular groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1 The utility model provides a technical solution: a cable pin pressing device with a counter-pressure mechanism, comprising a base 1, a countersunk hole is provided on the base 1, which is used to provide an installation foundation for other components. The base 1 and the components thereon can also be conveniently installed at the work station through the bolts in the countersunk hole.

[0025] An L-shaped support frame 4 and a pin storage rail 7 are fixedly installed on the upper side of the base 1. The L-shaped support frame 4 is vertically arranged to support other components, and the pin storage rail 7 is horizontally arranged with an open rear end and a closed front end. The rear end is used to dock with the vibrating plate for conveying pins to ensure that there are always pins to be used at the front end.

[0026] A pushing mechanism 5 for pressing the pins is installed on the upper side of the L-shaped support frame 4, and a clamping mechanism 6 for transferring the pins is installed on the upper side of the base 1. A back-pressure mechanism 3 is installed on the side of the L-shaped support frame 4 away from the pin storage rail 7. The clamping mechanism 6 can pick up the pins stored at the front end and place them in the back-pressure mechanism 3 for temporary storage, and the pushing mechanism 5 can press the temporarily stored pins downward into the pin hole where the cable end connector is connected to the eccentric wheel in the actuator.

[0027] The back pressure mechanism 3 includes a vertically arranged first cylinder 31 and a horizontally arranged support rod 32. The first cylinder 31 is fixedly assembled with the L-shaped support frame 4. One end of the support rod 32 is fixedly installed on the output end of the first cylinder 31. The other end of the support rod 32 is provided with a placement structure 8. The placement structure 8 supports the pin to be installed by interference fitting. In addition, the first cylinder 31 can drive the placement structure 8 to move up and down through the support rod 32.

[0028] When the placement structure 8 is in the lower position, the pin can be in the installation position. The pin is pressed down by the pushing mechanism 5 to complete the installation. The top part of the pin is still in the placement structure 8. At this time, the upward reset placement structure 8 can provide counter pressure, that is, pull the pin upward to determine whether the pin is firmly installed. When the pin is firmly installed, only the placement structure 8 is reset upward. When the pin is not firmly installed, the placement structure 8 is reset upward with the pin.

[0029] The pins in the cable are also connected by interference fitting, and the force of the interference fitting in the placement structure 8 is smaller than the force of the interference fitting in the cable.

[0030] The placement structure 8 may take the following forms:

[0031] Form 1, please see Figure 2 The placement structure 8 includes a first through hole 81 opened at the front end of the support rod 32. The first through hole 81 is vertically arranged, and the first through hole 81 is interference fitted with the internally inserted pin. The force required for the interference insertion pin is directly provided through the first through hole 81.

[0032] For Form 2, please see Figure 3 The placement structure 8 also includes a press clamp 83 and a screw 84. The support rod 32 is provided with a rectangular groove 86 connected to the first through hole 81. Wedge-shaped grooves 85 aligned with the rectangular grooves 86 are provided on both sides of the support rod 32. The upper end size of the wedge-shaped grooves 85 is larger than the lower end size. The press clamp 83 is plugged into and assembled with the wedge-shaped grooves 85. A second through hole is provided on the rear side of the press clamp 83. The support rod 32 is provided with a screw hole aligned with the second through hole. The screw 84 passes through the second through hole and is screwed with the screw hole.

[0033] After long-term use, the first through hole 81 will inevitably be worn out, causing the aperture to become slightly larger and the interference fit to be insufficient. At this time, tightening the screw 84 downward can move the pressure clamp 83 downward. At the same time, the force acting on the wedge-shaped grooves 85 on both sides can compress the rectangular groove 86, thereby reducing the aperture of the first through hole 81 through slight deformation to adjust the interference fit strength to the set value.

[0034] For Form 3, please see Figure 4The placement structure 8 also includes a bushing 82. The bushing 82 is installed in the first through hole 81 by means of a retaining spring. Accordingly, a pair of annular grooves for retaining the retaining spring are opened on the circumferential side of the bushing 82. The bushing 82 is made of a wear-resistant material (such as nylon). After the aperture of the first through hole 81 is reduced by slight deformation, the bushing 82 can be pressed to reduce the diameter. While having the ability to adjust the inner diameter size, it can also further reduce the number of maintenance and aperture adjustment times, making it more convenient to use.

[0035] See also Figure 1 The pushing mechanism 5 includes a second cylinder 51, a pressure sensor 52 and a pin 54. The second cylinder 51 is fixedly installed on the top of the L-shaped support frame 4. The second cylinder 51 is vertically arranged. The output end of the second cylinder 51 passes through the L-shaped support frame 4 and is fixedly installed with the pressure sensor 52. Correspondingly, the L-shaped support frame 4 is provided with a through hole for passing through the output end of the second cylinder 51. The lower side of the pressure sensor 52 is fixedly installed with a pin 54, and the pin 54 is located above the placement structure 8.

[0036] The second cylinder 51 is used to lift the column pin 54. When it is in the upper position, it does not affect the movement of other parts. When it is lowered, it can press the pin in the placement structure 8 downward but not completely out. The pin extending downward from the placement structure 8 can be installed into the pin hole at the connection, and the pressure sensor 52 can detect the force of pressing the pin down to ensure the reliability of the pin installation.

[0037] The pushing mechanism 5 also includes a linear guide rail 53. The side wall of the L-shaped support frame 4 is fixedly installed with the linear guide rail 53. The linear guide rail 53 is vertically arranged. The slider of the linear guide rail 53 and the pin 54 are fixedly assembled by a support arm. The pin 54 is a slender stepped column. When the pin 54 moves up and down, the support arm will also move up and down along the linear guide rail 53, protecting the pin 54, improving its ability to withstand pressure, and avoiding bending.

[0038] See also Figure 5 The clamping mechanism 6 includes a third cylinder 61, a pneumatic clamp 62 and a fourth cylinder 64. The third cylinder 61 is fixedly installed on the upper side of the base 1 through a support platform. The output end of the third cylinder 61 is fixedly installed with an L-shaped plate 63, and the lower side of the L-shaped plate 63 is fixedly installed with the fourth cylinder 64. The output end of the fourth cylinder 64 passes through the L-shaped plate 63 and is fixedly installed with the pneumatic clamp 62. Accordingly, the L-shaped plate 63 is provided with a through hole for passing the output end of the fourth cylinder 64.

[0039] The third cylinder 61 is arranged horizontally and the fourth cylinder 64 is arranged vertically. The output end of the third cylinder 61 can translate the L-shaped plate 63 and the fourth cylinder 64 and the pneumatic clamp 62 installed thereon, so that the pneumatic clamp 62 can be located at the pin storage rail 7 or the placement structure 8; the fourth cylinder 64 is used to lift and lower the pneumatic clamp 62, and the pneumatic clamp 62 has a claw head that can be opened and closed, which can realize the upward clamping and removal of pins from the pin storage rail 7, or the downward insertion of pins into the placement structure 8.

[0040] In addition, a pair of positioning cylinders 2 are fixedly installed on the upper side of the base 1, and the positioning cylinders 2 are arranged vertically. Correspondingly, a pair of positioning pins are fixedly installed on the lower side of the cable clamp. When the cable clamp is moved to the specified position by the manipulator, the positioning pins are plugged into the positioning cylinders 2 to ensure the accuracy of the cable clamp's positioning, thereby ensuring the docking accuracy of the pins and the pin holes at the connection.

[0041] Electrical components such as the cylinder, pneumatic gripper 62 and pressure sensor 52 are electrically connected to the electrical cabinet of the assembly line. Through the construction of pneumatic circuits, sensor signal integration, PLC logic programming and other links, collaborative work and regulation between components are achieved.

[0042] The working principle of this embodiment is as follows:

[0043] During operation, the pins are transported by the vibrating disk and arranged in the pin storage rail 7. The back pressure mechanism 3 first lifts the placement structure 8 to be flush with the upper surface of the pin storage rail 7. The clamping mechanism 6 clamps the pins at the front end of the pin storage rail 7 upward and takes them out. After moving them horizontally to the top of the placement structure 8, the pins are inserted downward into the placement structure 8 for use.

[0044] The clamping mechanism 6 is reset, and the back-pressure mechanism 3 moves down to place the structure 8 and the pin. The robotic arm carries the clamped cable and eccentric wheel to the positioning cylinder 2. At this time, the pin is aligned with the pin hole at the connection. The pushing mechanism 5 presses the pin in the placement structure 8 downward so that the pin can be interference fitted into the pin hole, and the part of the pin exposed at the top of the pin hole is still in the placement structure 8. Then the back-pressure mechanism 3 is reset upward and the pin is pulled for inspection. If the pin is not pulled out, it is qualified. If it is pulled out, it is unqualified. It is distinguished by camera-based visual inspection equipment. The unqualified cables and eccentric wheels are sent to the recovery conveyor for manual maintenance, and the qualified cables and eccentric wheels are sent to the production conveyor to continue to the next assembly process.

[0045] A collection box is placed below the placement structure 8, and unqualified pins will be completely ejected by the pushing mechanism 5 and fall into the collection box for recycling and processing.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cable pin press-fitting device with a counter-pressure mechanism, comprising a base (1), characterized in that: An L-shaped support frame (4) and a pin storage rail (7) are fixedly mounted on the upper side of the base (1); a push mechanism (5) for pressing the pins is mounted on the upper side of the L-shaped support frame (4); a clamping mechanism (6) for transferring the pins is mounted on the upper side of the base (1); and a counter-pressure mechanism (3) is mounted on the side of the L-shaped support frame (4) away from the pin storage rail (7); The counter-pressure mechanism (3) comprises a first cylinder (31) and a support rod (32); the first cylinder (31) is fixedly assembled with the L-shaped support frame (4); one end of the support rod (32) is fixedly mounted on the output end of the first cylinder (31); and the other end of the support rod (32) is provided with a placement structure (8).

2. The cable pin press-fitting device with a counter-pressure mechanism according to claim 1, characterized in that: The placement structure (8) comprises a first through hole (81) formed at the front end of the support rod (32).

3. The cable pin press-fitting device with a counter-pressure mechanism according to claim 2, characterized in that: The placement structure (8) further includes a press clamp (83) and a screw (84); the support rod (32) is provided with a rectangular groove (86) connected to the first through hole (81); both sides of the support rod (32) are provided with wedge-shaped grooves (85) aligned with the rectangular grooves (86); the press clamp (83) is plugged into and assembled with the wedge-shaped grooves (85); a second through hole is provided on the rear side of the press clamp (83); the support rod (32) is provided with a screw hole aligned with the second through hole; the screw (84) passes through the second through hole and is screwed to the screw hole.

4. The cable pin press-fitting device with a counter-pressure mechanism according to claim 3, characterized in that: The placement structure (8) further includes a bushing (82), and the bushing (82) is installed in the first through hole (81).

5. The cable pin press-fitting device with a counter-pressure mechanism according to claim 1, characterized in that: The pushing mechanism (5) comprises a second cylinder (51), a pressure sensor (52) and a pin (54); the second cylinder (51) is fixedly mounted on the top of the L-shaped support frame (4); the output end of the second cylinder (51) passes through the L-shaped support frame (4) and is fixedly mounted with the pressure sensor (52); the lower side of the pressure sensor (52) is fixedly mounted with a pin (54); the pin (54) is located above the placement structure (8).

6. The cable pin press-fitting device with a counter-pressure mechanism according to claim 5, characterized in that: The pushing mechanism (5) further comprises a linear guide rail (53), the side wall of the L-shaped support frame (4) is fixedly mounted with the linear guide rail (53), and the slider and the pin (54) of the linear guide rail (53) are fixedly assembled via a support arm.

7. The cable pin press-fitting device with a counter-pressure mechanism according to claim 1, characterized in that: The clamping mechanism (6) comprises a third cylinder (61), a pneumatic clamp (62) and a fourth cylinder (64); the third cylinder (61) is fixedly mounted on the upper side of the base (1) via a support platform; an L-shaped plate (63) is fixedly mounted on the output end of the third cylinder (61); a fourth cylinder (64) is fixedly mounted on the lower side of the L-shaped plate (63); and the output end of the fourth cylinder (64) passes through the L-shaped plate (63) and is fixedly mounted with the pneumatic clamp (62).

8. The cable pin press-fitting device with a counter-pressure mechanism according to claim 1, characterized in that: A pair of positioning cylinders (2) are fixedly mounted on the upper side of the base (1).

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