Double-fork-arm press-fitting device for non-bearing frame

Abstract

A double-fork-arm press-fitting device for a non-bearing vehicle frame comprises a base, a first fork arm and a second fork arm, the fixing support is of a pipe body structure and is vertically arranged on the rear end face of the base; the sliding block is arranged at the lower part of the inner wall of the fixed bracket; the movable support is arranged in the fixed support, and the back face is connected to the sliding rail; the driving motor and the speed reducer are vertically arranged on the top surface of the fixed bracket, the output end is connected with the ball screw, and an upper nut is connected with the upper end of the movable bracket; the frame positioning assembly comprises an air cylinder which is vertically arranged on one side of the front portion of the base. The telescopic positioning pin is arranged on one side of the front of the bottom surface of the base and connected with the end of a cylinder piston rod; the fixed positioning pin is arranged on the other side of the front part of the bottom surface of the base; the double-fork-arm positioning assembly comprises a linear guide rail and a sliding block and is arranged on the lower portion of the movable support. The positioning block is arranged on the upper end face of the sliding block, and X-direction front and rear end limiting and Y-direction limiting positioning are arranged on the positioning block; the other end of the extension spring is connected with the positioning block; the controller is arranged on the fixing support, and the driving motor and the air cylinder are connected with the controller.

Description

Technical fields:

[0001] This utility model relates to the field of transfer and assembly technology, specifically to a double wishbone press-fit device for a non-load-bearing vehicle frame. Background Technology

[0002] With industrial upgrading and the rapid development of the automotive industry, more and more car manufacturers are emerging across the country. Different car manufacturers have different production standards and processing technologies, and the use of tooling equipment during production and assembly has become a common phenomenon. Working in the non-standard design industry, the complex on-site conditions and production requirements are placing increasing demands and challenges on our non-standard design capabilities.

[0003] Traditional spring press-fitting equipment simply compresses the spring and places it between the chassis and the lower control arm. This type of equipment is widely used on load-bearing vehicle production lines because the spring pressure is low, and positioning the spring between the chassis and the lower control arm is simple—just put it in. However, on non-load-bearing vehicle production lines, simply pressing the spring into the chassis makes positioning very difficult. Manual alignment is impossible, and it's not visually possible. If the installation fails the first time, the spring needs to be compressed again and reinstalled. This process is very time-consuming, difficult to adjust to a satisfactory position, inconvenient for workers, and disrupts production rhythm. Summary of the Invention

[0004] The purpose of this utility model is to provide a non-load-bearing frame double wishbone press-fitting device, which realizes the positioning and press-fitting of non-load-bearing frame double wishbone, can adapt to the press-fitting of various vehicle models within the stroke range, and meets the needs of workpieces of different models and different processes.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A non-load-bearing frame double wishbone press fitting device, comprising:

[0007] The base has a stepped surface at its front;

[0008] The fixed support is a tubular structure, vertically installed on the rear end face of the base;

[0009] A slide rail and a slider, wherein the slider is axially disposed on the lower part of the inner wall of the fixed bracket along the fixed bracket;

[0010] The movable bracket is L-shaped, with a tubular structure at the top, which is inserted into the fixed bracket. The back of the upper part of the movable bracket is connected to the slide rail along the length direction.

[0011] A drive motor and reducer are vertically mounted on the top surface of the fixed bracket, and their output end is connected to a ball screw. The nut on the ball screw is connected to the upper end of the movable bracket.

[0012] Chassis positioning components, including:

[0013] The cylinder is vertically mounted on one side of the stepped surface at the front of the base, with the end of its piston rod passing through the front of the base.

[0014] A telescopic positioning pin is located on one side of the front of the bottom surface of the base and is connected to the end of the cylinder piston rod;

[0015] A fixing pin is provided on the other side of the front of the bottom face of the base;

[0016] The double-wishbone positioning assembly includes:

[0017] A linear guide and a slider are provided on the lower upper end face of the movable bracket along the length of the lower upper end face. A stop plate is vertically provided on the front end face of the lower part corresponding to the front end of the linear guide.

[0018] A positioning block is disposed on the upper end face of the slider; the positioning block has symmetrical X-direction front limit and X-direction rear limit on both sides of the middle part; the positioning block has a Y-direction limit positioning protrusion at the middle of the rear end;

[0019] A tension spring, one end of which is connected to the middle of the inner side of the stop plate, and the other end of which is connected to the positioning block;

[0020] The controller is mounted on the fixed bracket, and the drive motor and cylinder are connected to the controller.

[0021] Preferably, a safety rope is also provided, with one end connected to the base and the other end connected to the lower part of the movable support.

[0022] Preferably, the device further includes two position sensors, which are respectively disposed on one side and the other side of the fixed bracket and extend into the fixed bracket. The position sensors are electrically connected to the controller.

[0023] Preferably, the drive motor is a servo motor.

[0024] In the pressing device described in this utility model:

[0025] The frame positioning assembly is equipped with two types of frame positioning pins: fixed positioning pins and telescopic positioning pins. During pressing, the two positioning pins are first inserted into the frame positioning holes. After pressing, if there is a small gap that needs to be adjusted, the telescopic positioning pin is retracted, and the equipment is manually pushed to rotate around the fixed positioning pin to achieve the purpose of assembly.

[0026] The double fork arm positioning assembly positions the double fork arm by limiting it forward and backward in the X direction and limiting it in the Y direction. During the pressing process, the double fork arm will rotate around the axis in the YZ plane, and the positioning assembly will slide outward in the Y direction. A linear guide rail is set below to facilitate the sliding of the positioning assembly. After the pressing is completed, a tension spring is set below to pull the positioning assembly back to its initial position.

[0027] Compared with the prior art, the advantages of this utility model are:

[0028] This utility model adopts a double fork arm design to realize the double fork arm press-fit function of the frame line; at the same time, it adopts servo control to realize press-fit work of multiple vehicle models and multiple strokes.

[0029] The pressure required for double forklift press-fitting is generally around 8000N. This utility model can achieve on-line installation, reducing the workload from multiple people to just two, greatly saving labor and time costs. Attached Figure Description

[0030] Figure 1 Three-dimensional representation of the present utility model Figure 1 ;

[0031] Figure 2 Three-dimensional representation of the present utility model Figure 2 ;

[0032] Figure 3 Three-dimensional representation of the present utility model Figure 3 . Detailed Implementation

[0033] See Figures 1-3 The non-load-bearing frame double wishbone press-fitting device of this utility model includes:

[0034] Base 1, with a stepped surface 101 at its front;

[0035] The fixed bracket 2 is a tubular structure and is vertically installed on the rear end face of the base 1;

[0036] The slide rail 3 and the slider 31 are arranged axially along the lower part of the inner wall of the fixed bracket 2;

[0037] The movable bracket 4 is L-shaped, with a tubular structure at the top, and is inserted into the fixed bracket 2. The back of the upper part of the movable bracket 4 is connected to the slide rail 3 along the length direction.

[0038] The drive motor 5 and the reducer are vertically mounted on the top surface of the fixed bracket 2, and their output end is connected to a ball screw 6. The nut 61 on the ball screw 6 is connected to the upper end of the movable bracket 4; the drive motor is preferably a servo motor.

[0039] The frame positioning assembly 7 includes:

[0040] Cylinder 71 is vertically disposed on one side of the front stepped surface 101 of base 1, and the end of its piston rod passes through the front of base 1;

[0041] Telescopic positioning pin 72 is located on one side of the front of the bottom face of the base 1 and is connected to the end of the piston rod of cylinder 71;

[0042] A fixed positioning pin 73 is provided on the other side of the front of the bottom face of the base 1;

[0043] Double fork arm positioning assembly 8 includes:

[0044] Linear guide rail 81 and slider 82 are arranged on the lower upper end face of movable bracket 4 along the length direction of the lower upper end face of movable bracket 4, and a stop plate 83 is vertically arranged on the lower front end face corresponding to the front end of linear guide rail 81.

[0045] A positioning block 84 is disposed on the upper end face of the slider 82; X-direction front end limit 85 and X-direction rear end limit 86 are symmetrically protruded on both sides of the middle part of the positioning block 84; Y-direction limiting positioning 87 is protruded in the middle of the rear end of the positioning block 84.

[0046] A tension spring 88 has one end connected to the middle of the inner side of the stop plate 83, and the other end connected to the positioning block 84.

[0047] The controller 9 is mounted on the fixed bracket 2, and the drive motor and cylinder are connected to the controller.

[0048] Preferably, a safety rope 10 is also provided, one end of which is connected to the base 1 and the other end is connected to the lower part of the movable support 4.

[0049] Preferably, it also includes two position sensors 11 and 11', which are respectively disposed on one side and the top and bottom of the fixed bracket 2 and extend into the fixed bracket 2 to sense the position of the movable bracket 4 within the fixed bracket 2; the position sensors are electrically connected to the controller.

[0050] This invention enables the positioning and pressing of a double wishbone on a non-load-bearing frame. The fixed part of the device is positioned on the frame, while the movable part is positioned on the double wishbone. The double wishbone is then compressed via a ball screw, and finally connected to the brake disc. It can adapt to various vehicle models within its stroke range, allowing for one-click pressing and meeting the needs of different vehicle models and workpieces requiring different processes.

Claims

1. A double wishbone press-fitting device for a non-load-bearing vehicle frame, characterized in that, include: The base has a stepped surface at its front; The fixed support is a tubular structure, vertically installed on the rear end face of the base; A slide rail and a slider, wherein the slider is axially disposed on the lower part of the inner wall of the fixed bracket along the fixed bracket; The movable bracket is L-shaped, with a tubular structure at the top, which is inserted into the fixed bracket. The back of the upper part of the movable bracket is connected to the slide rail along the length direction. A drive motor and reducer are vertically mounted on the top surface of the fixed bracket, and their output end is connected to a ball screw. The nut on the ball screw is connected to the upper end of the movable bracket. The frame positioning components include: The cylinder is vertically mounted on one side of the stepped surface at the front of the base, with the end of its piston rod passing through the front of the base. A telescopic positioning pin is located on one side of the front of the bottom surface of the base and is connected to the end of the cylinder piston rod; A fixed positioning pin is located on the other side of the front of the bottom face of the base; the double fork arm positioning assembly includes: A linear guide and a slider are provided on the lower upper end face of the movable bracket along the length of the lower upper end face. A stop plate is vertically provided on the front end face of the lower part corresponding to the front end of the linear guide. A positioning block is disposed on the upper end face of the slider; the positioning block has symmetrical X-direction front limit and X-direction rear limit on both sides of the middle part; the positioning block has a Y-direction limit positioning protrusion at the middle of the rear end; A tension spring, one end of which is connected to the middle of the inner side of the stop plate, and the other end of which is connected to the positioning block; a controller, which is mounted on the fixed bracket, and the drive motor and cylinder are connected to the controller.

2. The non-load-bearing frame double wishbone press-fitting device as described in claim 1, characterized in that, A safety rope is also provided, with one end connected to the base and the other end connected to the lower part of the movable support.

3. The non-load-bearing frame double wishbone press-fitting device as described in claim 1 or 2, characterized in that, It also includes two position sensors, which are respectively disposed on one side and the top and bottom of the fixed bracket and extend into the fixed bracket. The position sensors are electrically connected to the controller.

4. The non-load-bearing frame double wishbone press-fitting device as described in claim 1, characterized in that, The drive motor is a servo motor.

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