A positioning fixture for an automobile fuel pipe

Abstract

This utility model belongs to the field of automotive parts manufacturing technology, specifically relating to a positioning clamp for an automotive fuel pipe. It includes a connecting column fixedly installed on the top left side of a base plate; an assembly pipe fixedly installed on the top right side of the connecting column, with a closed structure at the right end; four support mechanisms are arranged in a cross shape around the assembly pipe; each support mechanism includes several connecting pipes arranged laterally around the assembly pipe; each connecting pipe has a slidingly sealed push rod inside; an arc-shaped plate is fixedly installed at the end of each push rod away from the assembly pipe; the assembly pipe and the connecting pipes are filled with hydraulic oil; a push-pull mechanism is located on the top left side of the connecting column, with its telescopic end extending into the assembly pipe. This utility model has a simple and reasonable structure, employing an inside-out support method during use, avoiding the sagging of the fuel pipe periphery caused by traditional outside-in clamping, thus protecting the structural integrity of the fuel pipe.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing technology, specifically relating to a positioning clamp for automotive fuel lines. Background Technology

[0002] The positioning fixture for automotive fuel lines is a specialized tooling used to precisely fix, limit, and maintain the posture of fuel lines during production, assembly, or testing. Its core function is to ensure the stable position of the fuel line during processing, joint assembly, or leak detection, thereby guaranteeing process accuracy and consistency.

[0003] Existing automotive fuel line positioning fixtures, such as the one described in patent application number "CN202223340848.8," offer high positioning accuracy and stable clamping, significantly improving the processing precision of the fuel line. However, their clamping method involves applying clamping force to the periphery of the fuel line. Since the fuel line has a hollow internal structure, excessive clamping force can easily cause localized depressions around the periphery. These depressions reduce the cross-sectional area of ​​the line, creating flow resistance and potentially affecting its normal operation. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning clamp for automotive fuel lines, which adopts an inside-out support method during use, avoiding the circumferential depression of the fuel line caused by the traditional outside-in clamping method, and protecting the structural integrity of the fuel line.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A positioning clamp for an automotive fuel line, comprising:

[0007] The base plate has a connecting column fixedly installed on the top left side and a support mechanism at the bottom.

[0008] The assembly tube is fixedly installed on the top right side of the connecting column. The right end of the assembly tube is a closed structure, and four support mechanisms are arranged in a cross shape around the periphery of the assembly tube.

[0009] The support mechanism includes several connecting pipes, which are arranged horizontally around the assembly pipe. Each connecting pipe has a sliding and sealed push rod inside. An arc-shaped plate is fixedly installed on the end of the push rod away from the assembly pipe. The assembly pipe and the connecting pipes are filled with hydraulic oil.

[0010] The push-pull mechanism is located on the top left side of the connecting column, and the telescopic end of the push-pull mechanism extends into the assembly tube.

[0011] The controller is mounted on the front side of the connecting column via a connecting cable, and the push-pull mechanism is electrically connected to the controller.

[0012] As a preferred technical solution, the push-pull mechanism includes a push plug, and an opening connected to the inside of the assembly tube is provided on the top left side of the connecting column. The opening has the same inner diameter as the assembly tube. The push plug is slidably and sealingly assembled inside the opening. The opening is filled with hydraulic oil. A cylinder is fixedly installed on the top left side of the connecting column. The telescopic end of the cylinder is fixedly connected to the push plug. The cylinder is electrically connected to the controller.

[0013] As a preferred technical solution, the four arc-shaped plates are provided with an anti-slip layer on the side away from the assembly tube.

[0014] As a preferred technical solution, a through groove is provided on the top right side of the base plate, a slider is slidably assembled inside the through groove, a lifting auxiliary support mechanism is fixedly installed on the top of the slider, a first lead screw is rotatably assembled on the left inner wall of the through groove, the right end of the first lead screw passes through the slider and extends out of the base plate, a turntable is fixedly installed on the right end of the first lead screw, and the slider is threadedly connected to the first lead screw.

[0015] As a preferred technical solution, the lifting auxiliary support mechanism includes an assembly box, which is fixedly installed inside the slider. A support platform is slidably mounted inside the assembly box, and a support plate is fixedly mounted on the top of the support platform. A second lead screw is rotatably mounted on the bottom side inside the assembly box. A threaded hole for threaded connection with the second lead screw is opened at the bottom of the support platform. A first bevel gear is fixedly mounted on the lower side of the periphery of the second lead screw. A second bevel gear that meshes with the first bevel gear is rotatably mounted on the rear side inside the assembly box. A rotating rod is fixedly mounted on the rear side of the second bevel gear. The rear end of the rotating rod extends out of the assembly box and is fixedly mounted with a turning block.

[0016] The beneficial effects of this utility model are:

[0017] 1. An inside-out support method is adopted to avoid the circumference of the fuel pipe caused by the traditional outside-in clamping method, thus protecting the structural integrity of the fuel pipe;

[0018] 2. The four arc-shaped plates move synchronously through hydraulic oil transmission, which is simple to clamp and provides stable support.

[0019] 3. The curved plate has an anti-slip layer to increase friction with the inner wall of the fuel line and improve clamping stability;

[0020] 4. The lifting auxiliary support mechanism can be adjusted left and right, and up and down to adapt to the support needs of different lengths and heights, thus improving the ease of operation. Attached Figure Description

[0021] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of a first partial structure of the present invention;

[0025] Figure 4 This is a side view of the structure of this utility model. Figure 1 ;

[0026] Figure 5 This is a side view of the structure of this utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram of the push-pull mechanism structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the assembly of the top rod and the arc-shaped plate of this utility model.

[0029] Reference numerals: base plate 1, connecting column 11, support mechanism 12, assembly pipe 2, connecting pipe 3, top rod 31, arc plate 32, push-pull mechanism 5, controller 6, push plug 601, opening 61, cylinder 62, through groove 701, slider 71, lifting auxiliary support mechanism 8, first lead screw 72, turntable 73, assembly box 81, support platform 82, support plate 83, second lead screw 84, first bevel gear 85, second bevel gear 86, turning block 87. Detailed Implementation

[0030] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1-7 As shown, this utility model provides a positioning clamp for an automotive fuel line, comprising:

[0032] Base plate 1, with a connecting column 11 fixedly installed on the top left side of base plate 1, and a support mechanism 12 provided at the bottom of base plate 1;

[0033] Assembly tube 2 is fixedly installed on the top right side of connecting column 11. The right end of assembly tube 2 is a closed structure. Four support mechanisms are arranged in a cross shape around the periphery of assembly tube 2.

[0034] The support mechanism includes several connecting pipes 3, which are arranged horizontally around the assembly pipe 2. Each of the several connecting pipes 3 is fitted with a sliding and sealed top rod 31. An arc-shaped plate 32 is fixedly installed at the end of the top rod 31 away from the assembly pipe 2. The assembly pipe 2 and the several connecting pipes 3 are filled with hydraulic oil.

[0035] The push-pull mechanism 5 is located on the top left side of the connecting column 11. The telescopic end of the push-pull mechanism 5 extends into the assembly tube 2. Specifically, the push-pull mechanism 5 includes a push plug 601. An opening 61 is provided on the top left side of the connecting column 11, which is connected to the inside of the assembly tube 2. The opening 61 has the same inner diameter as the assembly tube 2. The push plug 601 is slidably sealed and assembled inside the opening 61. The opening 61 is filled with hydraulic oil. A cylinder 62 is fixedly installed on the top left side of the connecting column 11. The telescopic end of the cylinder 62 is fixedly connected to the push plug 601. The cylinder 62 is electrically connected to the controller 6.

[0036] In the initial state of use, the telescopic end of cylinder 62 is in a retracted state, and the push plug 601 is also in a sliding and sealed connection with the inside of the assembly tube 2. Several push rods 31 are all housed inside several connecting tubes 3. Then, the four arc plates 32 close together to form a complete circle. In this state, the operator aligns the fuel pipe to be processed with the four closed arc plates 32 and inserts it. Since the four arc plates 32 maintain a horizontal and vertical state, the fuel pipe can be ensured not to bend during processing after being inserted. When positioning and clamping, cylinder 62 is started by controller 6. The telescopic end of cylinder 62 drives the push plug 601 to move. Due to the hydraulic oil setting, the hydraulic oil generates a pushing force, which simultaneously pushes one end of several push rods 31 away from the assembly tube 2. The four arc plates 32 open simultaneously, supporting the fuel pipe from the inside out. This can avoid applying clamping force from the outside in, causing the fuel pipe to be concave around its perimeter, affecting its use. At the same time, the clamping method is simple and the support effect is good.

[0037] The controller 6 is mounted on the front side of the connecting column 11 via a connecting line, and the push-pull mechanism 5 is electrically connected to the controller 6.

[0038] Each of the four arc-shaped plates 32 has an anti-slip layer on the side away from the assembly pipe 2; the anti-slip layer further increases the friction between the arc-shaped plates 32 and the inner wall of the fuel pipe, improving the clamping effect.

[0039] A through groove 701 is provided on the top right side of the base plate 1. A slider 71 is slidably assembled inside the through groove 701. A lifting auxiliary support mechanism 8 is fixedly installed on the top of the slider 71. A first lead screw 72 is rotatably assembled on the left inner wall of the through groove 701. The right end of the first lead screw 72 passes through the slider 71 and extends out of the base plate 1. A turntable 73 is fixedly installed on the right end of the first lead screw 72. The slider 71 is threadedly connected to the first lead screw 72.

[0040] When processing or assembling the fuel pipe, one end of the fuel pipe extends out of the assembly tube 2. The operator can place the component to be assembled on the lifting auxiliary support mechanism 8 to align the fuel pipe. The operator can also rotate the first lead screw 72 to drive the slider 71 to move left and right to adjust the gap between it and the fuel pipe. The operation is simple and convenient, further improving its practicality.

[0041] The lifting auxiliary support mechanism 8 includes an assembly box 81, which is fixedly installed inside the slider 71. A support platform 82 is slidably mounted inside the assembly box 81. A support plate 83 is fixedly mounted on the top of the support platform 82. A second lead screw 84 is rotatably mounted on the bottom side inside the assembly box 81. A threaded hole for threaded connection with the second lead screw 84 is opened at the bottom of the support platform 82. A first bevel gear 85 is fixedly mounted on the lower side of the circumference of the second lead screw 84. A second bevel gear 86 that meshes with the first bevel gear 85 is rotatably mounted on the rear side inside the assembly box 81. A rotating rod is fixedly mounted on the rear side of the second bevel gear 86. The rear end of the rotating rod extends out of the assembly box 81 and a turning block 87 is fixedly mounted thereon.

[0042] When in use, the operator places the component to be assembled or the fuel pipe to be cut on the support platform 82 to increase stability. When adjusting the height, the operator rotates the turning block 87, which drives the second bevel gear 86 to rotate. The second bevel gear 86 drives the first bevel gear 85 to rotate, and then the second lead screw 84 rotates, driving the support platform 82 to move up and down to adjust the height. When the support platform 82 is not in use, it can be stored away.

[0043] The device is used as follows:

[0044] In use, initially, the telescopic end of cylinder 62 is in a retracted state, pushing plug 601 and the assembly tube 2 are in a sliding sealing connection, several push rods 31 are housed inside several connecting tubes 3, and four arc plates 32 are closed together to form a complete circle; the operator aligns the fuel pipe to be processed with the four closed arc plates 32 and inserts it. Because the arc plates 32 maintain a horizontal and vertical state, it can be ensured that the fuel pipe does not bend during processing.

[0045] When positioning and clamping, the controller 6 starts the cylinder 62. The extension end of the cylinder 62 drives the pusher 601 to move, and the hydraulic oil generates a pushing force, which simultaneously pushes several push rods 31 away from the assembly tube 2. The four arc plates 32 open simultaneously, supporting the fuel pipe from the inside out.

[0046] When auxiliary support is needed, the operator can place the protruding part of the fuel pipe or the component to be assembled on the support plate 83 of the lifting auxiliary support mechanism 8; rotate the turntable 73 to drive the first lead screw 72 to rotate, causing the slider 71 to move left and right to adjust the gap with the fuel pipe; rotate the turning block 87, which drives the second lead screw 84 to rotate through the second bevel gear 86 and the first bevel gear 85, driving the support platform 82 to move up and down to adjust the support height;

[0047] After use, control the cylinder 62 extension end to retract via controller 6, the push rod 31 will be stored, the arc plate 32 will be closed, and the fuel pipe can be removed.

[0048] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A positioning jig for an automotive fuel pipe, characterized by: include The base plate (1) has a connecting column (11) fixedly installed on the top left side and a support mechanism (12) at the bottom. Assembly tube (2) is fixedly installed on the top right side of the connecting column (11). The right end of the assembly tube (2) is a closed structure. The assembly tube (2) is surrounded by four support mechanisms in a cross shape. The support mechanism includes several connecting pipes (3), which are arranged horizontally around the assembly pipe (2). Each of the several connecting pipes (3) is fitted with a sliding sealing top rod (31). An arc plate (32) is fixedly installed at one end of the top rod (31) away from the assembly pipe (2). The assembly pipe (2) and the several connecting pipes (3) are filled with hydraulic oil. Push-pull mechanism (5) is located on the top left side of the connecting column (11), and the telescopic end of the push-pull mechanism (5) extends into the assembly tube (2); The controller (6) is mounted on the front side of the connecting column (11) via a connecting line, and the push-pull mechanism (5) is electrically connected to the controller (6).

2. The positioning clamp for an automotive fuel line according to claim 1, characterized in that: The push-pull mechanism (5) includes a push plug (601). The top left side of the connecting column (11) has an opening (61) that communicates with the inside of the assembly tube (2). The opening (61) has the same inner diameter as the assembly tube (2). The push plug (601) is slidably sealed inside the opening (61). The opening (61) is filled with hydraulic oil. A cylinder (62) is fixedly installed on the top left side of the connecting column (11). The telescopic end of the cylinder (62) is fixedly connected to the push plug (601). The cylinder (62) is electrically connected to the controller (6).

3. The positioning clamp for an automotive fuel line according to claim 1, characterized in that: The four arc plates (32) are provided with anti-slip layers on the side away from the assembly tube (2).

4. The positioning clamp for an automotive fuel line according to claim 1, characterized in that: A through groove (701) is provided on the top right side of the base plate (1). A slider (71) is slidably assembled inside the through groove (701). A lifting auxiliary support mechanism (8) is fixedly installed on the top of the slider (71). A first lead screw (72) is rotatably assembled on the left inner wall of the through groove (701). The right end of the first lead screw (72) passes through the slider (71) and extends out of the base plate (1). A turntable (73) is fixedly installed on the right end of the first lead screw (72). The slider (71) is threadedly connected to the first lead screw (72).

5. A positioning clamp for an automotive fuel line according to claim 4, characterized in that: The lifting auxiliary support mechanism (8) includes an assembly box (81), which is fixedly installed inside the slider (71). A support platform (82) is slidably mounted inside the assembly box (81). A support plate (83) is fixedly mounted on the top of the support platform (82). A second lead screw (84) is rotatably mounted on the bottom side inside the assembly box (81). A threaded hole for threaded connection with the second lead screw (84) is opened at the bottom of the support platform (82). A first bevel gear (85) is fixedly mounted on the lower side of the periphery of the second lead screw (84). A second bevel gear (86) meshing with the first bevel gear (85) is rotatably mounted on the rear side inside the assembly box (81). A rotating rod is fixedly mounted on the rear side of the second bevel gear (86). The rear end of the rotating rod extends out of the assembly box (81) and a turning block (87) is fixedly mounted thereon.

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