Embedded positioning pin mechanism for automobile chassis structural part welding fixture

Abstract

The utility model relates to the technical field of positioning pins, in particular to an embedded type positioning pin mechanism for an automobile chassis structural part welding clamp, which comprises a connecting mechanism, a positioning pin is arranged at the bottom of the connecting mechanism, the connecting mechanism comprises a shell, an inner cavity is arranged at the bottom of the shell, and the positioning pin is arranged in the inner cavity. A first threaded hole is formed in the shell and communicates with the inner cavity, a connecting screw is in threaded connection with the interior of the first threaded hole, the positioning pin comprises a body, the top of the body is fixedly connected with a connecting block, the connecting block is located in the inner cavity, a second threaded hole is formed in the connecting block, and the second threaded hole communicates with the first threaded hole. The second threaded hole is located under the first threaded hole, and the bottom of the connecting screw is in threaded connection with the interior of the second threaded hole. The utility model provides a separable positioning pin mechanism, which can prevent the positioning pin from being too long to influence the welding of an automobile chassis structural member.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning pin field especially relates to a kind of embedded positioning pin mechanism for automobile chassis structural member welding fixture. BACKGROUND

[0002] Positioning pin plays a key positioning role in mechanical design, assembly and manufacturing, its design requirement and use specification directly affect assembly accuracy and structural stability, in structural design aspect, positioning pin has straight column type, taper, threaded, also has spring positioning pin, and the application scenarios of different types of positioning pin are different.

[0003] In the welding of automobile chassis structural member, positioning pin auxiliary structural member needs to be positioned, positioning pin needs to be removed after use, the tail end of existing positioning pin is provided with removal structure for facilitating removal after use, which leads to that the length of positioning pin is too long and is inconvenient to use. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a kind of embedded positioning pin mechanism for automobile chassis structural member welding fixture, and the main technical problem to be solved is to provide a kind of separable positioning pin mechanism, to avoid that the length of positioning pin affects the welding of automobile chassis structural member.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of embedded positioning pin mechanism for automobile chassis structural member welding fixture, including connecting mechanism, the bottom of the connecting mechanism is equipped with positioning pin, the connecting mechanism includes shell, the bottom of the shell is equipped with inner cavity, the inside of the shell is equipped with first threaded hole, the first threaded hole is communicated with inner cavity, the inside of the first threaded hole is screw-threaded with connecting screw, the positioning pin includes main body, the top of the main body is fixedly connected with connecting block, the connecting block is located in the inside of inner cavity, the inside of the connecting block is equipped with second threaded hole, the second threaded hole is located below first threaded hole, the bottom of the connecting screw is screw-threaded with the inside of second threaded hole.

[0006] By adopting the above technical scheme, when using, the connecting block at the top of positioning pin is inserted into the inner cavity in connecting mechanism, then rotating connecting screw can connect connecting mechanism with positioning pin, it is convenient to insert positioning pin into the positioning hole of automobile chassis structural member, then reverse rotating connecting screw separates connecting mechanism from positioning pin, only positioning pin is retained in positioning hole, which can reduce the length of positioning pin mechanism, and facilitate the welding of automobile chassis structural member.

[0007] As a further description of the above technical scheme:

[0008] The top of the shell is provided with rotating grooves, and the number of the rotating grooves is two.

[0009] As a further description of the above technical solution:

[0010] The inner part of the two rotating grooves is movably connected with rotating columns.

[0011] As a further description of the above technical solution:

[0012] The outer surface of the two rotating columns is fixedly connected with rotating plates.

[0013] Through the above technical solution, the rotating plate is installed in the rotating groove through the rotating column, so that the rotating plate can rotate around the rotating column.

[0014] As a further description of the above technical solution:

[0015] The inner surface of the two rotating plates is fixedly connected with anti-skid pieces, the outer surface of the anti-skid piece is provided with anti-skid lines, and the outer surface of the anti-skid piece is attached to the outer surface of the main body.

[0016] Through the above technical solution, when used, the palm holds the two rotating columns inward, so that the anti-skid pieces on the rotating plates can be tightly attached to the outer surface of the main body, and the main body can be limited, and at this time, the rotating connecting screw can more conveniently connect the connecting mechanism and the positioning pin.

[0017] Through the above technical solution, the embedded positioning pin mechanism for the automobile chassis structure welding clamp has at least the following beneficial effects:

[0018] 1. Compared with the prior art, the embedded positioning pin mechanism for the automobile chassis structure welding clamp inserts the connecting block at the top of the positioning pin into the inner cavity in the connecting mechanism, and then rotates the connecting screw to connect the connecting mechanism and the positioning pin, so as to conveniently insert the positioning pin into the positioning hole of the automobile chassis structure, and then reversely rotate the connecting screw to separate the connecting mechanism and the positioning pin, so as to only keep the positioning pin in the positioning hole, reduce the length of the positioning pin mechanism, and facilitate the welding of the automobile chassis structure.

[0019] 2. Compared with the prior art, the embedded positioning pin mechanism for the automobile chassis structure welding clamp holds the two rotating columns inward with the palm when used, so that the anti-skid pieces on the rotating plates can be tightly attached to the outer surface of the main body, the main body can be limited, and at this time, the rotating connecting screw can more conveniently connect the connecting mechanism and the positioning pin. DRAWINGS

[0020] Figure 1The utility model provides a kind of for the overall structure schematic diagram of embedded positioning pin mechanism of automobile chassis structural member welding fixture;

[0021] Figure 2 The utility model provides a kind of for the internal structure section view of embedded positioning pin mechanism of automobile chassis structural member welding fixture;

[0022] Figure 3 The utility model provides a kind of for the of embedded positioning pin mechanism of automobile chassis structural member welding fixture Figure 2 The structure enlarged view of A in middle;

[0023] Figure 4 The utility model provides a kind of for the of embedded positioning pin mechanism of automobile chassis structural member welding fixture Figure 2 The structure enlarged view of B in middle;

[0024] Figure 5 The utility model provides a kind of for the of embedded positioning pin mechanism of automobile chassis structural member welding fixture.

[0025] Legend:

[0026] 1, connecting mechanism;101, shell;102, inner cavity;103, first threaded hole;104, rotating groove;105, rotating column;106, rotating plate;107, anti-skid piece;108, connecting screw;2, positioning pin;201, main body;202, connecting block;203, second threaded hole. Specific implementation

[0027] Refer to Figures 1-5The utility model provides a kind of embedded positioning pin mechanism for automobile chassis structural member welding fixture:Including connecting mechanism 1, the bottom of connecting mechanism 1 is equipped with positioning pin 2, connecting mechanism 1 includes shell 101, the bottom of shell 101 is equipped with inner cavity 102, the inside of shell 101 is equipped with first threaded hole 103, first threaded hole 103 is communicated with inner cavity 102, the inside screw thread connection of first threaded hole 103 has connecting screw 108, positioning pin 2 includes main body 201, the top of main body 201 is fixedly connected with connecting block 202, connecting block 202 is located in the inside of inner cavity 102, the inside of connecting block 202 is equipped with second threaded hole 203, second threaded hole 203 is located in the just below of first threaded hole 103, the bottom of connecting screw 108 is screw thread connected with the inside of second threaded hole 203, when using, connecting block 202 of the top of positioning pin 2 is inserted into the inner cavity 102 in connecting mechanism 1, after rotating connecting screw 108 can be connected with positioning pin 2 for connecting mechanism 1, it is convenient to insert positioning pin 2 into the positioning hole of automobile chassis structural member, after reverse rotation connecting screw 108 separates connecting mechanism 1 with positioning pin 2, only positioning pin 2 is retained in positioning hole, the length of positioning pin mechanism can be reduced, it is convenient for the welding of automobile chassis structural member.

[0028] The top of shell 101 is equipped with rotary groove 104, the number of rotary groove 104 is two, two rotary grooves 104 are located at the left and right sides of shell 101 respectively, the inside of two rotary grooves 104 is movably connected with rotary column 105, the outer surface of two rotary columns 105 is fixedly connected with rotary plate 106, rotary plate 106 is installed in rotary groove 104 by rotary column 105, so that rotary plate 106 can rotate around rotary column 105.

[0029] The inner surface of two rotary plates 106 is fixedly connected with antiskid piece 107, the outer surface of antiskid piece 107 is provided with antiskid line, and the outer surface of antiskid piece 107 is attached with the outer surface of main body 201, when using, palm is inwards held two rotary columns 106 so that the antiskid piece 107 on rotary plate 106 can be tightly attached with the outer surface of main body 201, main body 201 can be positioned, at this time, rotating connecting screw 108 can more conveniently connect connecting mechanism 1 with positioning pin 2.

[0030] Working principle: when using, the connecting block 202 at the top of the positioning pin 2 is inserted into the inner cavity 102 in the connecting mechanism 1, then rotating the connecting screw 108 can connect the connecting mechanism 1 with the positioning pin 2, facilitating the insertion of the positioning pin 2 into the positioning hole of the automobile chassis structural member, then reversely rotating the connecting screw 108 separates the connecting mechanism 1 from the positioning pin 2, only the positioning pin 2 is retained in the positioning hole, which can reduce the length of the positioning pin mechanism, facilitating the welding of the automobile chassis structural member, and holding the two rotating columns 106 inward by the palm can make the anti-skid pieces 107 on the rotating plate 106 tightly adhere to the outer surface of the main body 201, which can limit the main body 201, at this time, rotating the connecting screw 108 can more conveniently connect the connecting mechanism 1 with the positioning pin 2.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. An embedded dowel pin mechanism for a welding fixture for an automotive chassis structural component, comprising a connecting mechanism (1), characterised in that: The bottom of the connecting mechanism (1) is provided with a positioning pin (2), the connecting mechanism (1) comprises a shell (101), the bottom of the shell (101) is provided with an inner cavity (102), the inside of the shell (101) is provided with a first threaded hole (103), the first threaded hole (103) is communicated with the inner cavity (102), the inside of the first threaded hole (103) is screwed with a connecting screw (108), the positioning pin (2) comprises a main body (201), the top of the main body (201) is fixedly connected with a connecting block (202), the connecting block (202) is located in the inner cavity (102), the inside of the connecting block (202) is provided with a second threaded hole (203), the second threaded hole (203) is located directly below the first threaded hole (103), and the bottom of the connecting screw (108) is screwed with the inside of the second threaded hole (203).

2. An embedded dowel pin mechanism for a welding fixture for an automotive chassis structural member according to claim 1, wherein: The top of the shell (101) is provided with rotating grooves (104), the number of the rotating grooves (104) is two, and the two rotating grooves (104) are located on the left side and the right side of the shell (101) respectively.

3. An embedded dowel pin mechanism for a welding fixture for an automotive chassis structural member according to claim 2, wherein: The inside of the two rotating grooves (104) is movably connected with rotating columns (105).

4. An embedded dowel pin mechanism for a welding fixture for an automotive chassis structural member according to claim 3, wherein: The outer surface of the two rotating columns (105) is fixedly connected with rotating plates (106).

5. An embedded dowel pin mechanism for a welding fixture for an automotive chassis structural member according to claim 4, wherein: The inner surface of the two rotating plates (106) is fixedly connected with anti-skid pieces (107), the outer surface of the anti-skid piece (107) is provided with anti-skid lines, and the outer surface of the anti-skid piece (107) is attached to the outer surface of the main body (201).

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