Pneumatic pressing device for mechanical crimping pliers

Abstract

A pneumatic pressing device for mechanical crimping pliers comprises the crimping pliers, a working platform, a fixed seat, a pneumatic pressing device and a limiting seat, the fixed seat, the pneumatic pressing device and the limiting seat are fixed on the working platform, a handle on one side of the crimping pliers is vertically fixed on the fixed seat to form a fixed handle, and the pneumatic pressing device is fixed on the fixed handle. A main body of the pneumatic pressing device is of an air cylinder structure, a piston of the air cylinder is connected with a push rod, the push rod extends out of an air cylinder body and is connected with a push plate, and the push plate is driven by the piston to push the movable handle of the crimping pliers forwards. The movable handle and the fixed handle of the crimping pliers are combined to crimp a wiring terminal at the end of a cable, and the limiting seat is located at the stroke limit of the push plate and used for limiting the movement stroke of the push plate.

Description

Technical Field

[0001] The present application relates to a pneumatic pressing tool, in particular to a pneumatic pressing device for a mechanical crimping pliers. Background Art

[0002] During the manufacturing process of aircraft cable trays, the terminal crimping of the control cable ends cannot be processed in a bundle. The operation site can only rely on the operator to manually crimp with a handheld mechanical crimping pliers, so the consistency and tightness of the crimping of the control cable end terminals cannot be guaranteed. The handheld mechanical crimping pliers are a scissor-type structure, with two handles hinged to each other. The front end of the handle is the crimping jaws. When crimping the terminals, the operator inserts the cable bundle into the crimping jaws and manually closes the two handles to crimp the cable bundle to form a terminal. Due to manual operation, the clamping force of the handheld mechanical crimping pliers cannot be kept constant, and the consistency and tightness of the crimping of the cable end terminals cannot be guaranteed. At the same time, the operator's hand labor intensity is high when using the handheld mechanical crimping pliers to crimp the control cable end terminals, and the crimping efficiency is not high. Summary of the invention

[0003] In order to solve practical problems at aircraft production sites, ensure the crimping quality of cable end terminals, reduce workers' labor intensity and improve work efficiency, the purpose of this application is to provide a pneumatic clamping device for mechanical crimping pliers.

[0004] A pneumatic clamping device for mechanical crimping pliers, characterized in that it contains a working platform, a fixed seat, a pneumatic clamping device body and a limit seat, wherein the fixed seat, the pneumatic clamping device body and the limit seat are fixed on the working platform, the fixed seat and the pneumatic clamping device body are located at both ends of the working platform, the limit seat is located between the fixed seat and the pneumatic clamping device body, a handle on one side of the crimping pliers is vertically fixed on the fixed seat to form a fixed handle, and a handle seat on the other side of the crimping pliers is close to the pneumatic clamping device as a movable handle, the main body of the pneumatic clamping device body is a cylinder structure, the piston of the cylinder is connected to a push rod, the push rod extends out of the cylinder body and is connected to a push plate, the push rod is parallel to the working platform, and the push plate is perpendicular to the working platform, the push plate pushes the movable handle of the crimping pliers forward under the drive of the piston, so that the movable handle of the crimping pliers is combined with the fixed handle to implement the crimping of the cable end terminal, when the push plate retreats under the drive of the piston, the movable handle of the crimping pliers is reset and opened under the action of the spring, and the limit seat is located at the stroke limit of the push plate, and is used to limit the movement stroke of the push plate.

[0005] The pneumatic clamping device for mechanical crimping pliers is characterized in that the pneumatic clamping device body controls the piston movement of the cylinder through a foot switch and compressed air, connects the compressed air to the air inlet hole of the foot switch, and then connects the cylinder through an air inlet pipe and an exhaust pipe to form a compressed air conduction circuit between the cylinder and the foot switch. When the foot switch is stepped on, compressed air enters the cylinder through the air inlet pipe, and the piston pushes the push plate to press the movable handle of the crimping pliers toward the fixed handle, and the jaws of the crimping pliers are closed. When the foot switch is released, the compressed air is discharged from the cylinder through the exhaust pipe, and the piston drives the push plate away from the movable handle of the crimping pliers, and the jaws of the crimping pliers open.

[0006] The pneumatic clamping device for mechanical crimping pliers is characterized in that a measuring scale is provided on the surface of the fixed seat, and a slide groove is also provided on the surface of the fixed seat, the measuring direction of the measuring scale and the axial direction of the slide groove are respectively parallel to the movement direction of the push plate, the limit seat is embedded in the slide groove, and the fixed position of the limit seat relative to the slide groove can be adjusted by a clamping screw.

[0007] The pneumatic clamping device for mechanical crimping pliers is characterized in that the fixed seat has a longitudinal cavity matching the crimping pliers handle, and clamping blocks are provided on both side walls of the cavity, and the crimping pliers handle is fixed in the longitudinal cavity of the fixed seat through the clamping blocks on both sides.

[0008] The beneficial effects of the present application are: 1) The device uses compressed air as a power source, controls the transmission path of the compressed air through a foot switch, and controls the forward and backward movement of the active part of the cylinder, so that the handheld mechanical crimping pliers are in a clamping and relaxing state to complete the crimping of the control cable end terminals. 2) The device replaces the manual clamping operation, which can ensure that the clamping force on the control cable end terminals remains constant, so as to ensure the consistency and tightness of the crimping of the control cable end terminals, and improve the crimping quality and efficiency of the control cable end terminals. 3) The device can greatly reduce the manual labor intensity of operators using handheld mechanical crimping pliers to crimp the control cable end terminals, and the crimping efficiency is doubled.

[0009] The present application is further described in detail below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a schematic diagram of the structure of a pneumatic pressing device for a mechanical crimping pliers.

[0011] Figure 2 The present invention is a schematic diagram of the working principle of a pneumatic clamping device for a mechanical wire crimping pliers.

[0012] Explanation of numbers in the figure: 1 working platform, 2 pneumatic clamping device body, 3 limit seat, 4 fixed seat, 5 measuring scale, 6 slide slot, 7 foot switch, 8 piston, 9 push rod, 10 push plate, 11 air inlet pipe, 12 exhaust pipe, 13 fixed handle, 14 movable handle. DETAILED DESCRIPTION

[0013] Referring to the accompanying drawings, the pneumatic clamping device for mechanical crimping pliers of the present application comprises a working platform 1, a fixed seat 4, a pneumatic clamping device body 2 and a limit seat 3, wherein the fixed seat 4, the pneumatic clamping device body 2 and the limit seat 3 are fixed on the working platform 1, the fixed seat 4 and the pneumatic clamping device body 2 are located at both ends of the working platform 1, and the limit seat 3 is located between the fixed seat 4 and the pneumatic clamping device body 2.

[0014] The main body of the pneumatic clamping device body 2 is a cylinder structure, the piston 8 of the cylinder is connected to the push rod 9, the push rod 9 extends out of the cylinder body and is connected to a push plate 10, the push rod 9 is parallel to the working platform 1, and the push plate 10 is perpendicular to the working platform 1. The pneumatic clamping device body 2 controls the movement of the cylinder piston through the foot switch 7 and compressed air, connects the compressed air to the air inlet hole of the foot switch 7, and then connects the cylinder through the air inlet pipe 11 and the exhaust pipe 12, forming a compressed air conduction circuit between the cylinder and the foot switch 7.

[0015] During implementation, a measuring scale 5 is provided on the surface of the working platform 1, and a slide groove 6 is also provided on the surface of the working platform 1. The measuring direction of the measuring scale 5 and the axial direction of the slide groove 6 are respectively parallel to the movement direction of the push plate 10. The limit seat 3 is embedded in the slide groove, and the fixed position of the limit seat 3 relative to the slide groove can be adjusted by a tightening screw.

[0016] In practice, the fixing seat 4 has a longitudinal cavity matching the handle of the crimping pliers, and clamping blocks are provided on both side walls of the cavity, and the handle of one side of the crimping pliers is fixed in the longitudinal cavity of the fixing seat 4 through the clamping blocks on both sides.

[0017] When in use, one side handle of the crimping pliers is vertically fixed on the fixing seat 4 to form a fixed handle 13, and the other side handle seat of the crimping pliers is close to the pneumatic pressing device as a movable handle 14. When the foot switch 7 is stepped on, compressed air enters the cylinder through the air inlet pipe 11, and the piston 8 pushes the push plate 10 to press the movable handle 14 of the crimping pliers toward the fixed handle 13, and the jaws of the crimping pliers are closed to complete the crimping of the cable end terminals; when the foot switch 7 is released, the compressed air is discharged from the cylinder through the exhaust pipe 12, and the piston 8 drives the push plate 10 away from the movable handle 14 of the crimping pliers. The movable handle of the crimping pliers is reset and opened under the action of the spring, and the limit seat 3 is located at the stroke limit of the push plate, which is used to limit the movement stroke of the push plate.

[0018] Driven by the piston 8, the push plate 10 pushes the movable handle of the crimping pliers forward, so that the movable handle of the crimping pliers is combined with the fixed handle to implement crimping of the cable end terminal. When the push plate retreats driven by the piston, the movable handle of the crimping pliers is reset and opened under the action of the spring. The limit seat is located at the stroke limit of the push plate and is used to limit the movement stroke of the push plate.

[0019] Since the displacement distances of the movable handles of the hand-held mechanical crimping pliers for crimping terminal blocks of control cables of different specifications are different, the displacement distances of the movable handles of the hand-held mechanical crimping pliers corresponding to the crimping of terminal blocks of control cables of different specifications are marked on the measuring scale, and the fixed position of the limit seat 3 on the slide groove of the working platform 1 is adjusted so that the displacement distances of the movable handles of the hand-held mechanical crimping pliers corresponding to the crimping of terminal blocks of control cables of the same specifications are the same, so as to ensure that the clamping force exerted on the terminal blocks of control cables of the same specifications when crimping is constant.

Claims

1. A pneumatic pressing device for a mechanical crimping pliers, characterized in that: The invention comprises a working platform, a fixed seat, a pneumatic clamping device body and a limit seat, wherein the fixed seat, the pneumatic clamping device body and the limit seat are fixed on the working platform, the fixed seat and the pneumatic clamping device body are located at both ends of the working platform, the limit seat is located between the fixed seat and the pneumatic clamping device body, a handle on one side of the crimping pliers is vertically fixed on the fixed seat to form a fixed handle, and a handle seat on the other side of the crimping pliers is close to the pneumatic clamping device body as a movable handle, the main body of the pneumatic clamping device body is a cylinder structure, the piston of the cylinder is connected to a push rod, the push rod extends out of the cylinder body and is connected to a push plate, the push rod is parallel to the working platform, and the push plate is perpendicular to the working platform, and the push plate pushes the movable handle of the crimping pliers forward under the drive of the piston, so that the movable handle of the crimping pliers is combined with the fixed handle to implement the crimping of the cable end terminal, and when the push plate retreats under the drive of the piston, the movable handle of the crimping pliers is reset and opened under the action of the spring, and the limit seat is located at the stroke limit of the push plate, and is used to limit the movement stroke of the push plate.

2. The pneumatic pressing device for mechanical crimping pliers according to claim 1, characterized in that: The pneumatic clamping device body controls the piston movement of the cylinder through the foot switch and compressed air, connects the compressed air to the air inlet hole of the foot switch, connects the cylinder through the air inlet pipe and the exhaust pipe, and forms a compressed air conduction circuit between the cylinder and the foot switch. When the foot switch is stepped on, the compressed air enters the cylinder through the air inlet pipe, and the piston pushes the push plate to press the movable handle of the crimping pliers toward the fixed handle, and the jaws of the crimping pliers are closed. When the foot switch is released, the compressed air is discharged from the cylinder through the exhaust pipe, and the piston drives the push plate away from the movable handle of the crimping pliers, and the jaws of the crimping pliers are opened.

3. The pneumatic pressing device for mechanical crimping pliers according to claim 1, characterized in that: A measuring scale is provided on the surface of the working platform, and a slide groove is also provided on the surface of the working platform. The measuring direction of the measuring scale and the axial direction of the slide groove are respectively parallel to the movement direction of the push plate. The limit seat is embedded in the slide groove, and the fixed position of the limit seat relative to the slide groove can be adjusted by a tightening screw.

4. The pneumatic pressing device for mechanical crimping pliers according to claim 1, characterized in that: The fixing seat has a longitudinal cavity matched with the crimping pliers handle, and clamping blocks are arranged on both side walls of the cavity, and the crimping pliers handle is fixed in the longitudinal cavity of the fixing seat through the clamping blocks on both sides.

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