Auxiliary frame front cross beam welding connecting rod telescopic pin positioning tool

Abstract

The utility model provides an auxiliary frame front cross beam welding connecting rod telescopic pin positioning tool. The auxiliary frame front cross beam welding connecting rod telescopic pin positioning tool comprises a positioning pin, a guide sleeve, a positioning support, a connecting rod and an air cylinder. The positioning pin movably penetrates through the through hole of the guide sleeve, the positioning support is L-shaped, one end of the top of the positioning support is connected with the lower part of the guide sleeve, the other end of the top of the positioning support is connected with the fixed part of the cylinder, the connecting rod is horizontally arranged, the left end of the connecting rod is connected with a telescopic rod of the cylinder, the right end of the connecting rod is a T-shaped groove, the lower end of the positioning pin is a T-shaped sliding block, and the T-shaped sliding block is matched with the T-shaped groove. The air cylinder is separated from the guide sleeve tool, the installation position of the air cylinder can be adjusted, space can be effectively utilized, the positioning pin is easy to replace, and follow-up maintenance is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts manufacturing, in particular to a positioning tool for welding connecting rod telescopic pins of a front crossbeam of a sub-frame. Background Art

[0002] The existing telescopic pin mechanism mostly uses a direct connection between a cylinder and a guide sleeve to realize the pin extension and positioning functions. The cylinder and the telescopic pin tooling can only be installed on the vertical surface of the part that needs to be positioned. For example, the internal telescopic pin positioning and clamping mechanism disclosed in Chinese patent CN106926036A includes a guide pin, a push block, a positioning pin, a positioning block, a cylinder connecting rod, a push rod, a cylinder, a push rod guide sleeve, a positioning pin guide hole, a positioning pin guide sleeve, and a cylinder mounting seat; the positioning block is fixedly connected to the cylinder mounting seat, and the cylinder is installed on the cylinder mounting seat. The cylinder extension rod passes through the cylinder mounting seat and is connected to one end of the cylinder connecting rod. The other end of the cylinder connecting rod is fixedly connected to the push rod guide sleeve. The push rod guide sleeve passes through the positioning block and is connected to the push block. The push block can slide back and forth in the clamping groove formed by the two side plates of the positioning block, driving the positioning pins set inside the push block to extend or retract to both sides, so as to position and clamp the workpiece. The above structure has the following disadvantages:

[0003] 1. The retractable pin mechanism has high requirements on the installation position. The retractable pin mechanism and the positioning sleeve are coaxially arranged and can only be installed on the vertical surface of the positioning part, which easily limits the space;

[0004] 2. It takes up a large space. For some tooling with limited space, the large space occupied is not conducive to robot welding;

[0005] 3. The positioning pin is fixedly connected to the cylinder, and the operating space is small, making it difficult to replace the pin. Utility Model Content

[0006] To achieve the above purpose, the utility model provides a sub-frame front crossbeam welding connecting rod telescopic pin positioning tooling, the cylinder and the guide sleeve tooling are separated, the cylinder installation position can be adjusted, the space can be effectively utilized, the positioning pin is simple to replace, and subsequent maintenance is convenient.

[0007] A positioning tool for welding a connecting rod telescopic pin of a sub-frame front cross beam, comprising a positioning pin, a guide sleeve, a positioning support, a connecting rod and a cylinder; the positioning pin can be movably penetrated in the through hole of the guide sleeve, the guide sleeve is a guide rail for the positioning pin to move up and down, the positioning support is constructed in an L shape, one end of the top of the positioning support is connected to the lower part of the guide sleeve and the other end is connected to the fixed part of the cylinder, the connecting rod is horizontally arranged, the left end of the connecting rod is connected to the telescopic rod of the cylinder, the right end of the connecting rod is constructed as a T-slot, the lower end of the positioning pin is constructed as a T-shaped slider, and the T-shaped slider cooperates with the T-slot.

[0008] In the utility model, the positioning support is constructed in an L shape, and the positioning support is divided into a horizontal part and a vertical part. The horizontal part is used to install the cylinder, and the vertical part is used to install the guide sleeve. The lower end of the horizontal part is connected to the right end of the horizontal part, thereby realizing the axial misalignment of the cylinder shaft and the positioning pin shaft, thereby increasing the setting space of the welding robot or welding gun.

[0009] The cylinder of the utility model is separated from the guide sleeve. By utilizing the cooperation of the T-shaped slider and the T-shaped slot, the connecting rod can rotate along the axial direction of the positioning pin to achieve angular rotation of the connecting rod and the positioning pin, thereby achieving adjustable installation position of the cylinder and effectively utilizing space.

[0010] Preferably, the interior structure of the support is a hollow structure, one end of the connecting rod is arranged inside the positioning support, and the lower end of the positioning pin is arranged inside the positioning support.

[0011] Preferably, the T-shaped slider is cylindrical, which facilitates the rotation between the positioning pin and the connecting rod and facilitates the adjustment of the accommodating space of the welding robot.

[0012] Specifically, the connecting rod is radially provided with a through hole, the top of the telescopic rod of the cylinder is axially provided with a bolt hole, and the connecting rod and the telescopic rod of the cylinder are connected by bolts.

[0013] Specifically, the end of the T-slot of the positioning pin is set to an open structure, that is, the right end of the T-slot is an open structure, which is convenient for the T-slot slider to move to the left to completely separate from the positioning pin, realize the removal and replacement of the positioning pin, facilitate the separation of the cylinder and the positioning pin, and facilitate the replacement of the pin, saving manpower and material consumption. The T-slot opening faces upward, and the lower end surface of the positioning pin is constructed as a plane to facilitate contact with the T-slot surface and reduce wear.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The telescopic pin mechanism improves space utilization, allowing the robot to work in a better posture and avoid interference between the positioning tooling and the welding gun. The weld is highly stable, the repair welding rate is reduced, and costs are saved.

[0016] The cylinder and the positioning pin are separately arranged, and the pin is convenient to replace, thus saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a positioning tool for welding a connecting rod telescopic pin of a front crossbeam of a sub-frame.

[0018] Figure 2 yes Figure 1 Left view of .

[0019] Figure 3The utility model is a cross-sectional view of a positioning tool for welding a connecting rod telescopic pin of a front cross beam of a sub-frame.

[0020] Figure 4 yes Figure 3 A magnified view of the structure in the middle.

[0021] Figure 5 It is a structural diagram of the positioning pin described in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the connecting rod described in the utility model.

[0023] In the figure: 1-locating pin, 11-T-shaped slider, 2-guide sleeve, 3-locating support, 4-connecting rod, 41-T-shaped slot, 5-cylinder. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or structure referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] Embodiment 1:

[0027] like Figures 1 to 3 As shown, a positioning tool for welding a connecting rod telescopic pin of a sub-frame front cross beam comprises a positioning pin 1, a guide sleeve 2, a positioning support 3, a connecting rod 4 and a cylinder 5; the positioning pin 1 can be movably penetrated in the through hole of the guide sleeve 2, the positioning support 3 is constructed in an L shape, one end of the top of the positioning support 3 is connected to the lower part of the guide sleeve 2 and the other end is connected to the fixed part of the cylinder 5, the connecting rod 4 is horizontally arranged, and the left end of the connecting rod 4 is connected to the telescopic rod of the cylinder 5.

[0028] like Figures 4 to 6 As shown, the right end of the connecting rod 4 is configured as a T-shaped slot 41 , and the lower end of the positioning pin 1 is configured as a T-shaped slider 11 , and the T-shaped slider 11 cooperates with the T-shaped slot 41 .

[0029] The working principle of this embodiment is as follows: the telescopic rod of the cylinder 5 can move up and down, driving the connecting rod 4 and the positioning pin 1 to move up and down in turn. The positioning pin 1 moves up and down in the guide sleeve 2 to realize the positioning, clamping and loosening of the workpiece.

[0030] When the locating pin 1 needs to be replaced, the connecting bolts of the connecting rod 4 and the cylinder 5 are screwed out, and the connecting rod 4 moves leftward to separate the T-shaped slider 11 and the T-shaped slot 41, so that the connecting rod 4 and the locating pin 1 can be separated, and then the locating pin 1 can be replaced.

[0031] Embodiment 2:

[0032] like Figures 1 to 3 As shown, a sub-frame front cross beam welding connecting rod telescopic pin positioning tool is used for positioning and fixing parts when welding parts, including a positioning pin 1, a guide sleeve 2, a positioning support 3, a connecting rod 4 and a cylinder 5; the positioning pin 1 can be movably penetrated in the through hole of the guide sleeve 2, the positioning support 3 is constructed in an L shape, one end of the top of the positioning support 3 is connected to the lower part of the guide sleeve 2 and the other end is connected to the fixed part of the cylinder 5, the connecting rod 4 is horizontally arranged, and the left end of the connecting rod 4 is connected to the telescopic rod of the cylinder 5.

[0033] like Figure 4 As shown, the right end of the connecting rod 4 is configured as a T-shaped slot 41 , and the lower end of the positioning pin 1 is configured as a T-shaped slider 11 , and the T-shaped slider 11 cooperates with the T-shaped slot 41 .

[0034] In this embodiment, the positioning support 3 is constructed in an L shape, and the positioning support 3 is divided into a horizontal part and a vertical part. The horizontal part is used to install the cylinder 5, and the vertical part is used to install the guide sleeve 2. The lower end of the horizontal part is connected to the right end of the horizontal part, thereby realizing the axial misalignment of the cylinder 5 axis and the positioning pin 1 axis, thereby increasing the setting space of the welding robot or welding gun. The robot or welding gun is set at the upper left position of the positioning support 3, that is, the left side of the positioning pin 1 and the upper space of the cylinder.

[0035] like Figures 4 to 6 As shown, the cylinder 5 of this embodiment is designed to be separated from the guide sleeve 2, and through the cooperation between the T-slot 41 and the T-slider 11, the connecting rod 4 can rotate axially along the locating pin 1 by utilizing the cooperation between the T-slider 11 and the T-slot 41, thereby realizing the angular rotation of the connecting rod 4 and the locating pin 1.

[0036] In this embodiment, the interior of the positioning support 3 is a hollow structure, one end of the connecting rod 4 is arranged inside the positioning support 3 , and the lower end of the positioning pin 1 is arranged inside the positioning support 3 .

[0037] In this embodiment, the T-shaped slider 11 is cylindrical, which facilitates the relative rotation of the positioning pin 1 and the connecting rod 4.

[0038] In this embodiment, the connecting rod 4 is radially provided with a through hole, the top of the telescopic rod of the cylinder 5 is axially provided with a bolt hole, and the connecting rod 4 and the telescopic rod of the cylinder 5 are connected by bolts.

[0039] In this embodiment, the end of the T-slot 41 is set to an open structure, which is convenient for the T-slot slider 11 to move left and right to separate or cooperate with the positioning pin 1, realize installation and disassembly, facilitate the separation of the cylinder 5 from the positioning pin 1, and facilitate the replacement of the pin, saving manpower and material consumption.

[0040] like Figure 6 As shown, in this embodiment, the T-slot 41 opens upward, and the lower end surface of the positioning pin 1 is constructed as a plane to facilitate surface contact with the T-slot 41 and reduce wear.

Claims

1. A positioning tool for welding connecting rod telescopic pins of a sub-frame front crossbeam, characterized in that The invention comprises a positioning pin (1), a guide sleeve (2), a positioning support (3), a connecting rod (4) and a cylinder (5); the positioning pin (1) is movably arranged to penetrate the through hole of the guide sleeve (2); the positioning support (3) is constructed in an L shape; one end of the top of the positioning support (3) is connected to the lower part of the guide sleeve (2) and the other end is connected to the fixed part of the cylinder (5); the connecting rod (4) is arranged horizontally; the left end of the connecting rod (4) is connected to the telescopic rod of the cylinder (5); the right end of the connecting rod (4) is constructed as a T-shaped slot (41); the lower end of the positioning pin (1) is constructed as a T-shaped slider (11); the T-shaped slider (11) and the T-shaped slot (41) cooperate.

2. The positioning tool for welding connecting rod telescopic pin of front cross beam of sub-frame according to claim 1, characterized in that: The internal structure of the positioning support (3) is a hollow structure, one end of the connecting rod (4) is arranged inside the positioning support (3), and the lower end of the positioning pin (1) is arranged inside the positioning support (3).

3. The positioning tool for welding connecting rod telescopic pin of front cross beam of sub-frame according to claim 1, characterized in that: The T-shaped slide block (11) is configured as a cylinder.

4. The positioning tool for welding connecting rod telescopic pin of front cross beam of sub-frame according to claim 1, characterized in that: The connecting rod (4) is radially provided with a through hole, the top of the telescopic rod of the cylinder (5) is axially provided with a bolt hole, and the connecting rod (4) and the telescopic rod of the cylinder (5) are connected by bolts.

5. The positioning tool for welding connecting rod telescopic pin of front cross beam of sub-frame according to claim 1, characterized in that: The end of the T-shaped groove (41) is arranged to be an open structure.

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