Welding fixture capable of being overturned and positioned

Abstract

The utility model discloses a welding fixture capable of being overturned and positioned, which belongs to the technical field of welding and comprises a loading part, a locking part and a supporting piece, the loading part is used for loading a to-be-welded workpiece and comprises a bearing piece; the locking part is connected with the loading piece, and the locking part comprises a locking piece which is arranged in a sliding mode in the first direction; the supporting piece is rotationally connected with the loading part, the rotating axis is collinear with the straight line where the first direction is located, and a locking hole is formed in the side, close to the locking part, of the supporting piece in the first direction; meanwhile, in a plane formed by the second direction and the third direction, the distance between the locking piece and the rotating axis is the same as the distance between the locking hole and the rotating axis, so that after the loading part rotates to the specified position of the locking state, the locking piece can be inserted into the locking hole in a sliding mode, and the relative position between the loading part and the supporting piece is fixed; therefore, the loading part can be positioned when the workpiece is loaded, and the stability of the clamp is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of welding, and particularly relates to a welding fixture capable of being positioned in reverse. BACKGROUND

[0002] With the progress of automobile technology, energy storage technology and electric control technology, the development of electric vehicles is becoming mature. Compared with fuel vehicles, consumers are more inclined to choose electric vehicles as a means of transportation due to the green travel mode and low cost of electric vehicles, so that the market share of electric vehicles is increasing.

[0003] The electric control equipment for controlling the energy storage battery in the electric vehicle includes a BMU (Battery Management Unit, battery management unit), and the BMU is connected with the energy storage equipment through a wire harness. Various electrical elements are included in the BMU, and copper bars are mostly used to connect between the electrical elements. The copper bars need to be connected with the electrical elements, the copper bars need to be connected with the copper bars, the rigid printed circuit board needs to be connected with the flexible printed circuit board, the flexible printed circuit board needs to be connected with the nickel sheet, and the nickel sheet needs to be connected with the surface mount device. In order to ensure the reliability of the connection, the industry is currently trying to use welding to achieve the connection between the target objects. Since the welding between the copper bar and the electrical element is on one welding surface, the welding between the nickel sheet and the surface mount device is on another welding surface, and the two welding surfaces are mostly two opposite planes, in order to realize the welding operation of multiple surfaces and reduce the clamping times, the industry currently mostly uses a reversible fixture. However, the movable reversing feature of the reversing fixture results in low stability of the fixture when the workpiece is clamped, and the fixture needs to be positioned and locked when the workpiece is clamped. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to solve the technical problem of low stability of the fixture when the workpiece is clamped due to the movable reversing feature of the reversing fixture in the prior art.

[0005] Technical scheme: The utility model provides a welding fixture capable of being positioned in reverse, which comprises:

[0006] A loading part is used for loading a workpiece to be welded, and the loading part comprises a bearing part, and the bearing part has a first direction, a second direction and a third direction which are intersected, and the bearing part is extended and arranged along a plane formed by the first direction and the second direction;

[0007] A locking part is connected with the loading part, and the locking part comprises a locking part which is slidably arranged along the first direction;

[0008] A support member is rotationally connected with the loading part, and the rotation axis is collinear with the straight line where the first direction is located; along the first direction, a locking hole is arranged on the side of the support member close to the locking part;

[0009] In the plane formed by the second direction and the third direction, the locking member has a first distance from the rotation axis, and the locking hole has a second distance from the rotation axis, and the first distance is the same as the second distance; there is a locking state between the loading part and the support member, and in the locking state, part of the locking member is slidingly inserted into the locking hole along the first direction.

[0010] In some embodiments, the locking part further comprises a connecting seat connected with the bearing member, the connecting seat has a sliding hole extending along the first direction and penetrating through the connecting seat, and the locking member is slidingly arranged in the sliding hole.

[0011] In some embodiments, the locking part further comprises:

[0012] An abutting seat is connected with the connecting seat, and along the first direction, the abutting seat is arranged on the side of the connecting seat away from the support member;

[0013] A first abutting member is arranged on the side of the locking member away from the support member along the first direction; in the plane formed by the first direction and the third direction, the first abutting member is rotationally connected with the locking member; along the rotation direction of the first abutting member, the abutting seat interferes with the first abutting member to provide support for pulling the locking member by the first abutting member.

[0014] In some embodiments, the first abutting member has a guide groove opened along the second direction; the guide direction of the guide groove is parallel to the plane formed by the first direction and the third direction;

[0015] The locking part further comprises a connecting rod arranged along the second direction, the connecting rod is connected with the locking member, part of the connecting rod is inserted into the guide groove, and the connecting rod and the first abutting member can move relative to each other along the guide direction through the guide groove.

[0016] In some embodiments, the loading part further comprises a pressing member connected with the bearing member, and along the third direction, the pressing member is arranged spaced apart from the bearing member, and the pressing member is used to press and fix the workpiece to the bearing member;

[0017] The first abutting piece rotates in a plane where the first direction and the third direction are located, and the loading part further comprises a second abutting piece connected with the pressing piece, which is arranged on the side of the pressing piece close to the bearing piece along the third direction; and the second abutting piece is arranged on the side of the abutting seat away from the connecting seat along the first direction.

[0018] The second abutting piece abuts against the first abutting piece to pull the locking piece out of the locking hole through the first abutting piece along the third direction.

[0019] In some embodiments, the welding clamp further comprises a rotating shaft arranged along the first direction, and the support piece has a through hole penetrating through the support piece along the first direction, and the rotating shaft is arranged to rotate through the through hole and is connected with the loading part to drive the loading part to rotate.

[0020] In some embodiments, the locking piece comprises:

[0021] A sliding block arranged to slide in the sliding hole;

[0022] A plug-in rod connected with the sliding block, which is arranged on the side of the sliding block close to the connecting seat along the first direction, and at least part of the plug-in rod is arranged to slide in the locking hole along the first direction in the locking state.

[0023] In some embodiments, the locking part further comprises a limiting block connected with the connecting seat and arranged on the side of the connecting seat close to the support piece along the first direction;

[0024] The second abutting piece abuts against the first abutting piece to pull the locking piece out of the locking hole through the first abutting piece along the third direction.

[0025] In some embodiments, the side of the sliding block close to the abutting seat along the first direction is provided with a connecting groove, and the connecting rod is arranged in the connecting groove and penetrates through the guide groove;

[0026] The guide groove penetrates through the sliding block along the third direction to provide a space for the movement of the first abutting piece.

[0027] In some embodiments, the abutting seat comprises:

[0028] A first abutting table is arranged on the side of the first abutting member close to the bearing member along the third direction, and the first abutting member abuts against the first abutting table along the third direction to provide support for the first abutting member.

[0029] A second abutting table is arranged along the second direction, and the projection of the second abutting table and the projection of the locking member at least partially overlap. A receiving groove is arranged on the side of the second abutting table close to the locking member along the second direction, and the receiving groove is used to accommodate at least part of the locking member.

[0030] The locking part further comprises an elastic member arranged in the receiving groove, and the elastic force direction of the elastic member is collinear with the first direction. The two ends of the elastic member abut against the groove bottom of the receiving groove and the locking member along the first direction, respectively, to push the locking member away from the second abutting table.

[0031] Beneficial effects: Compared with the prior art, the welding fixture provided by the embodiment of the present application comprises a loading part, a locking part and a support member. The loading part is used to load a workpiece to be welded, and the loading part comprises a bearing member. The locking part is connected with the loading member, and the locking part comprises a locking member arranged to slide along a first direction. The support member is rotationally connected with the loading part, and the rotation axis is collinear with the straight line along the first direction. Along the first direction, the side of the support member close to the locking part is provided with a locking hole. At the same time, in the plane formed by the second direction and the third direction, the distance between the locking member and the rotation axis is the same as the distance between the locking hole and the rotation axis, so that after the loading part is rotated to the specified position in the locking state, the locking member can be slidably inserted into the locking hole to fix the relative position between the loading part and the support member, so as to complete the positioning of the loading part when loading the workpiece and improve the stability of the fixture. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0033] Figure 1 A perspective view of the welding fixture provided by the embodiment of the present application is shown in the figure.

[0034] Figure 2 An exploded view of the welding fixture provided by the embodiment of the present application is shown in the figure.

[0035] Figure 3FIG. 3 is a perspective view of a support member and a locking portion in a reversible positioning welding fixture according to an embodiment of the present application;

[0036] Figure 4 FIG. 4 is a partial cross-sectional view of a support member and a locking portion in a reversible positioning welding fixture according to an embodiment of the present application;

[0037] FIG. 10 is a schematic view of a reversible positioning welding fixture according to an embodiment of the present application; DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present application.

[0039] With the progress of automobile technology, energy storage technology and electric control technology, the development of electric vehicles is becoming mature. Compared with fuel vehicles, consumers are more inclined to choose electric vehicles as a means of transportation due to the green travel mode and lower cost of electric vehicles, so that the market share of electric vehicles is increasing.

[0040] The electric control device for controlling the energy storage battery in the electric vehicle includes a BMU (Battery Management Unit), which is connected to the energy storage device through a wire harness. Various electrical elements are included in the BMU, and copper bars are mostly used to connect the electrical elements. The copper bars need to be connected with the electrical elements, the copper bars need to be connected with each other, the rigid printed circuit board needs to be connected with the flexible printed circuit board, the flexible printed circuit board needs to be connected with the nickel sheet, and the nickel sheet needs to be connected with the surface-mounted device. In order to ensure the reliability of the connection, the industry is currently trying to use welding to achieve the connection between the target objects. Since the welding between the copper bar and the electrical element is on one welding surface, and the welding between the nickel sheet and the surface-mounted device is on another welding surface, and the two welding surfaces are mostly two opposite planes, in order to realize the welding operation of multiple surfaces and reduce the clamping times, the industry currently mostly uses a reversible clamp. However, the reversible clamp has a movable and reversible feature, which results in low stability of the clamp when the workpiece is clamped. The clamp needs to be positioned and locked when the workpiece is clamped.

[0041] Therefore, the application provides a reversible positioning welding clamp, which includes a loading part 10, a locking part 20 and a supporting part 30. The loading part 10 is used to load the workpiece to be welded, and includes a bearing part 11. The locking part 20 is connected with the loading part 10, and includes a locking part 21 which is slidably arranged along a first direction X. The supporting part 30 is rotationally connected with the loading part 10, and the rotation axis is collinear with the straight line where the first direction X is located. Along the first direction X, the side of the supporting part 30 close to the locking part 20 is provided with a locking hole 31. Meanwhile, in the plane formed by a second direction Y and a third direction Z, the distance between the locking part 21 and the rotation axis is the same as the distance between the locking hole 31 and the rotation axis, so that after the loading part 10 is rotated to the specified position in the locking state, the locking part 21 can be slidably inserted into the locking hole 31, so as to fix the relative position between the loading part 10 and the supporting part 30, so as to complete the positioning of the loading part 10 when the workpiece is loaded, and improve the stability of the clamp.

[0042] In some embodiments, referring to Figure 1 and Figure 2 , Figure 1 the perspective view of the reversible positioning welding clamp provided by the application, Figure 2The explosion view of the reversible positioning welding fixture provided in the embodiment of the present application, the reversible positioning welding fixture provided in the embodiment of the present application comprises a loading part 10, the loading part 10 is used for loading and fixing a workpiece to be welded, and the loading part 10 comprises a bearing part 11, the bearing part 11 serves as a base body and is used for bearing the workpiece to be welded; in the present application, in order to facilitate understanding of the relative position relationship between the parts, a first direction X, a second direction Y and a third direction Z are introduced into the bearing part 11 and are arranged in intersection, and the bearing part 11 extends along the plane formed by the first direction X and the second direction Y. Specifically, the bearing part 11 is a rectangular plate body, the length direction of the rectangular plate body is the first direction X, the width direction is the second direction Y, and the thickness direction is the third direction Z, and it can be understood that the first direction X, the second direction Y and the third direction Z are arranged orthogonally.

[0043] In some embodiments, referring to Figure 1 and Figure 2 , Figure 1 the perspective view of the reversible positioning welding fixture provided in the embodiment of the present application, Figure 2 the explosion view of the reversible positioning welding fixture provided in the embodiment of the present application, the loading part 10 in the reversible positioning welding fixture provided in the embodiment of the present application further comprises a pressing part 12, the pressing part 12 is connected with the bearing part 11, is arranged in the third direction Z and is spaced from the bearing part 11, and is used for pressing and fixing the workpiece to be welded on the bearing part 11. Specifically, the pressing part 12 is a plate-shaped part, the pressing part 12 extends along the plane formed by the first direction X and the second direction Y, and the pressing part 12 is arranged in parallel with the bearing part 11, so as to load and fix the workpiece to be welded.

[0044] In some embodiments, referring to Figures 1 to 4 , Figure 1 the perspective view of the reversible positioning welding fixture provided in the embodiment of the present application, Figure 2 the explosion view of the reversible positioning welding fixture provided in the embodiment of the present application, Figure 3 the perspective view of the support part 30 and the locking part 20 in the reversible positioning welding fixture provided in the embodiment of the present application, Figure 4 the partial sectional view of the support part 30 and the locking part 20 in the reversible positioning welding fixture provided in the embodiment of the present application, the reversible positioning welding fixture provided in the embodiment of the present application further comprises a support part 30, the support part 30 is rotationally connected with the loading part 10, and the rotation axis is collinear with the straight line where the first direction X is located, so as to realize the function of turning over the workpiece to be welded. Specifically, the reversible positioning welding fixture provided in the embodiment of the present application further comprises a rotating shaft 40, the rotating shaft 40 extends along the first direction X, the support part 30 has a through hole 32 penetrating through the support part 30 along the first direction X, and the rotating shaft 40 can be rotationally arranged in the through hole 32 and connected with the loading part 10, so as to drive the loading part 10 to rotate.

[0045] In some embodiments, please refer to Figures 2 to 4 , Figure 2 the exploded view of the reversible positioning welding fixture provided by the embodiments of the present application, Figure 3 the perspective view of the support 30 and the locking portion 20 in the reversible positioning welding fixture provided by the embodiments of the present application, Figure 4 the partial sectional view of the support 30 and the locking portion 20 in the reversible positioning welding fixture provided by the embodiments of the present application, the reversible positioning welding fixture provided by the embodiments of the present application further comprises a locking portion 20, the locking portion 20 is connected with the loading portion 10, the locking portion 20 comprises a locking piece 21 which is slidingly arranged along the first direction X. Specifically, the locking portion 20 further comprises a connecting seat 22, the connecting seat 22 is connected with the bearing piece 11, the connecting seat 22 has a sliding hole 221 which extends along the first direction X and penetrates through the connecting seat 22, and the locking piece 21 is slidingly arranged in the sliding hole 221, so as to realize the technical effect that the locking piece 21 can move relative to the loading portion 10 along the first direction X. The connecting seat 22 is connected with the rotating shaft 40, so as to transmit the rotating action of the rotating shaft 40 through the connecting seat 22, and drive the loading portion 10 to rotate.

[0046] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 , Figure 1 the perspective view of the reversible positioning welding fixture provided by the embodiments of the present application, Figure 3 the perspective view of the support 30 and the locking portion 20 in the reversible positioning welding fixture provided by the embodiments of the present application, Figure 4The partial sectional view of the support 30 and the locking portion 20 of the welding fixture provided by the embodiment of the present application is shown in the first direction X. The side of the support 30 close to the locking portion 20 is provided with a locking hole 31 for accommodating the locking piece 21, so as to fix the position of the loading portion 10 by fixing the locking portion 20. Specifically, in the plane formed by the second direction Y and the third direction Z, the locking piece 21 has a first distance from the rotation axis, and the locking hole 31 has a second distance from the rotation axis. The first distance is the same as the second distance. Understandably, the locking piece 21 and the locking hole 31 are located on the same radius circle with the rotation axis as the center. When the locking state between the loading portion 10 and the support 30 is in the specified position of the locking state, that is, the normal projection of the locking piece 21 in the first direction X falls into the locking hole 31, the locking piece 21 can be inserted in the first direction X to limit the rotation of the locking piece 21 through the locking hole 31, so as to limit the rotation of the loading portion 10, so that the loading portion 10 and the support 30 are in the locking state, thereby improving the stability of the welding fixture when loading the workpiece. Understandably, the rotation axis 40 drives the movement of the loading portion 10 to adjust the relative position of the loading portion 10 and the support 30. When the loading portion 10 is in the specified position of the locking state, the locking piece 21 is slid and inserted into the locking hole 31 to control the loading portion 10 to enter the locking state.

[0047] In some embodiments, referring to Figure 4 , Figure 4 The partial sectional view of the support 30 and the locking portion 20 of the welding fixture provided by the embodiment of the present application is shown. The locking piece 21 includes a sliding block 211 and an insertion rod 212. The sliding block 211 is slidably arranged in the sliding hole 221. The insertion rod 212 is connected with the sliding block 211. In the first direction X, the insertion rod 212 is arranged on the side of the sliding block 211 close to the connecting seat 22. In the locking state, at least part of the insertion rod 212 is slidably arranged in the locking hole 31 in the first direction X.

[0048] In some embodiments, referring to Figure 4 , Figure 4 The partial sectional view of the support 30 and the locking portion 20 of the welding fixture provided by the embodiment of the present application is shown. The locking portion 20 further includes a limiting block 27. The limiting block 27 is connected with the connecting seat 22 and arranged on the side of the connecting seat 22 close to the support 30 in the first direction X. In the first direction X, the normal projection of the sliding block 211 partially overlaps with the normal projection of the limiting block 27, so as to abut against the limiting sliding block 211 in the locking state.

[0049] In some embodiments, referring to Figures 2 to 4 , Figure 2 The exploded view of the welding fixture provided by the embodiment of the present application is shown. Figure 3Figure 3 is a perspective view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided in the embodiments of the present application, Figure 4 Figure 4 is a partial cross-sectional view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided in the embodiments of the present application. The locking portion 20 of the reversible positioning welding fixture provided in the embodiments of the present application further comprises an abutting seat 23 and a first abutting piece 24. The abutting seat 23 is connected with the connecting seat 22 and is arranged on the side of the connecting seat 22 away from the support 30 along the first direction X. The first abutting piece 24 is arranged on the side of the locking piece 21 away from the support 30 and is rotationally connected with the locking piece 21 in the plane formed by the first direction X and the third direction Z. Along the rotation direction of the first abutting piece 24, the abutting seat 23 interferes with the first abutting piece 24 to provide support for pulling the locking piece 21 by the first abutting piece 24. Understandably, when it is required to release the locking state, the first abutting piece 24 is pushed along the first direction X, the first abutting piece 24 abuts against the abutting seat 23, the first abutting piece 24 pulls the locking piece 21 along the first direction X, the locking piece 21 is separated from the locking hole 31, the locking state is released, and the loading portion 10 can be freely rotated.

[0050] In some embodiments, referring to Figure 4 , Figure 4 Figure 5 is a partial cross-sectional view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided in the embodiments of the present application. The side of the sliding block 211 close to the abutting seat 23 is provided with a connecting groove 2111 along the first direction X, and the connecting rod 25 is arranged in the connecting groove 2111 and penetrates the guide groove 241. The guide groove 241 penetrates the sliding block 211 along the third direction Z to provide a space for the movement of the first abutting piece 24.

[0051] In some embodiments, referring to Figure 4 , Figure 4 Figure 6 is a partial cross-sectional view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided in the embodiments of the present application. The abutting seat 23 comprises a first abutting table 231 and a second abutting table 232. The first abutting table 231 is arranged on the side of the first abutting piece 24 close to the bearing 11 along the third direction Z. The first abutting piece 24 abuts against the first abutting table 231 along the third direction Z to provide support for the first abutting piece 24. The orthographic projection of the second abutting table 232 and the orthographic projection of the locking piece 21 at least partially overlap along the second direction Y. The side of the second abutting table 232 close to the locking piece 21 is provided with a containing groove 2321 along the second direction Y, and the containing groove 2321 is used for containing at least part of the locking piece 21.

[0052] In some embodiments, referring to Figure 4 , Figure 4The partial sectional view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided by the embodiment of the present application, the locking portion 20 further comprises an elastic member 26, the elastic member 26 is arranged in the accommodating groove 2321, the straight line where the elastic force direction of the elastic member 26 is located is collinear with the straight line where the first direction X is located; along the first direction X, the two ends of the elastic member 26 abut the groove bottom of the accommodating groove 2321 and the locking member 21 respectively, so as to push the locking member 21 away from the second abutting table 232.

[0053] In some embodiments, referring to Figure 4 , Figure 4 The partial sectional view of the support 30 and the locking portion 20 of the reversible positioning welding fixture provided by the embodiment of the present application, the first abutting member 24 has a guide groove 241 which is opened along the second direction Y; the guide direction of the guide groove 241 is parallel to the plane formed by the first direction X and the third direction Z; the locking portion 20 further comprises a connecting rod 25, the connecting rod 25 is arranged along the second direction Y, the connecting rod 25 is connected with the locking member 21, the connecting rod 25 is inserted in the guide groove 241, and the connecting rod 25 and the first abutting member 24 can move relatively along the guide direction. Specifically, in the plane formed by the first direction X and the third direction Z, the cross section of the guide groove 241 is a unit circle. It can be understood that when the first abutting member 24 pulls the locking member 21 to move, with the linear movement of the locking member 21 along the first direction X, the distance between the connecting rod 25 and the support point on the abutting seat 23 decreases, because the guide groove 241 is arranged in the present application, so that the connecting rod 25 can slide in the guide groove 241 to adapt to the change of the distance between the connecting rod 25 and the support point on the abutting seat 23, so that the locking member 21 can continuously move along the first direction X, avoiding the locking member 21 from being buckled and interfering with other components to be stuck.

[0054] In some embodiments, referring to Figure 4 , Figure 4The partial sectional view of the support 30 and the locking part 20 of the welding fixture provided by the embodiment of the present application, the first abutting part 24 rotates in the plane of the first direction X and the third direction Z, the loading part 10 further comprises a second abutting part 13, the second abutting part 13 is connected with the pressing part 12, along the third direction Z, the second abutting part 13 is arranged on the side of the pressing part 12 close to the bearing part 11; along the first direction X, the second abutting part 13 is arranged on the side of the abutting seat 23 away from the connecting seat 22; along the third direction Z, the orthographic projection of the second abutting part 13 at least partially coincides with the orthographic projection of the first abutting part 24, the second abutting part 13 abuts the first abutting part 24, so as to pull the locking part 21 out of the locking hole 31 through the first abutting part 24. It can be understood that when the workpiece is not loaded, the loading part 10 and the support frame are in the locked state, the loading part 10 is fixed in position and cannot rotate, at this time the workpiece is placed on the bearing part 11; then the pressing part 12 is pressed and installed along the third direction Z, the second abutting part 13 abuts and presses the first abutting part 24 along the third direction Z in the process of pressing and installing the pressing part 12, so as to release the locking state when the pressing part 12 is installed, and the loading part 10 can be freely rotated.

[0055] In some embodiments, referring to Figures 1 to 4 , Figure 1 the perspective view of the welding fixture provided by the embodiment of the present application, Figure 2 the exploded view of the welding fixture provided by the embodiment of the present application, Figure 3 the perspective view of the support 30 and the locking part 20 of the welding fixture provided by the embodiment of the present application, Figure 4 the partial sectional view of the support 30 and the locking part 20 of the welding fixture provided by the embodiment of the present application, taking the rotation center of the loading part 10 as the center, a plurality of locking holes 31 are arranged circumferentially on the support frame to meet the different locking position requirements.

[0056] It can be understood that the welding fixture provided by the embodiment of the application includes a loading part 10, a locking part 20 and a support 30; the loading part 10 is used for loading a workpiece to be welded, and the loading part 10 includes a bearing part 11; the locking part 20 is connected with the loading part, and the locking part 20 includes a locking part 21 which is arranged to slide along a first direction X; the support 30 is rotationally connected with the loading part 10, and the rotation axis is collinear with a straight line where the first direction X is located; along the first direction X, the side of the support 30 close to the locking part 20 is provided with a locking hole 31; at the same time, in a plane formed by a second direction Y and a third direction Z, the distance between the locking part 21 and the rotation axis is the same as the distance between the locking hole 31 and the rotation axis, so that after the loading part 10 is rotated to a specified position in a locking state, the locking part 21 can be slidably inserted into the locking hole 31, so as to fix the relative position between the loading part 10 and the support 30, so as to complete the positioning of the loading part 10 when loading the workpiece, and improve the stability of the fixture.

[0057] The welding fixture provided by the embodiment of the application is described in detail above, and the principle and implementation mode of the application are described by applying specific examples; the above embodiment is only used for helping to understand the method of the application and the core idea thereof; meanwhile, for those skilled in the art, according to the idea of the application, the specific implementation mode and application range can be changed, and the above description should not be understood as limiting the application.

Claims

1. A reversible positioning welding fixture, characterized by, The utility model relates to a welding device, including: loading part (10) for loading workpiece to be welded, the loading part (10) includes the carrier (11) with the first direction (X) of intersection arrangement, second direction (Y) and third direction (Z), the carrier (11) is extended along the plane of first direction (X) and second direction (Y) setting; Locking part (20) is connected with the loading part (10), and the locking part (20) includes locking piece (21) sliding arrangement along the first direction (X); Supporting piece (30) is rotatably connected with the loading part (10), and the rotation axis is collinear with the straight line of first direction (X);Along the first direction (X), the locking hole (31) is arranged on the side of the locking part (20) of supporting piece (30); Wherein, in the plane of second direction (Y) and third direction (Z), the locking piece (21) has the first distance with the rotation axis, the locking hole (31) has the second distance with the rotation axis, and the first distance is same with the second distance;Locking state exists between the loading part (10) and the supporting piece (30), and in the locking state, the part of locking piece (21) is slidingly inserted in the locking hole (31) along the first direction (X).

2. The reversible positioning welding fixture of claim 1, wherein, The locking part (20) further includes connecting seat (22), and the connecting seat (22) is connected with the carrier (11), and the connecting seat (22) has sliding hole (221) extending along the first direction (X) and penetrating the connecting seat (22), and the locking piece (21) is slidingly arranged in the sliding hole (221).

3. The reversible positioning welding fixture of claim 2, wherein, The locking part (20) further includes: Butt seat (23) is connected with the connecting seat (22), and along the first direction (X), the butt seat (23) is arranged on the side of the connecting seat (22) away from the supporting piece (30); First abutment (24) is arranged on the side of the locking piece (21) away from the supporting piece (30) along the first direction (X);In the plane of first direction (X) and third direction (Z), the first abutment (24) is rotatably connected with the locking piece (21);Along the rotation direction of the first abutment (24), the butt seat (23) and the first abutment (24) exist interference, to provide support for the first abutment (24) pulling the locking piece (21).

4. The reversible positioning welding fixture of claim 3, wherein, The first abutment (24) has guide slot (241) along the second direction (Y);The guide direction of the guide slot (241) is parallel with the plane of first direction (X) and third direction (Z); The locking part (20) further comprises a connecting rod (25) extending along the second direction (Y), the connecting rod (25) is connected with the locking piece (21), and part of the connecting rod (25) is inserted in the guide groove (241), and the connecting rod (25) and the first abutting piece (24) can move relative to each other along the guide direction through the guide groove (241).

5. The reversible positioning welding fixture of claim 4, wherein, The loading part (10) further comprises a pressing piece (12) connected with the bearing piece (11), and the pressing piece (12) is arranged apart from the bearing piece (11) along the third direction (Z), and the pressing piece (12) is used for pressing and fixing the workpiece on the bearing piece (11); The first abutting piece (24) rotates in the plane formed by the first direction (X) and the third direction (Z), and the loading part (10) further comprises a second abutting piece (13) connected with the pressing piece (12), and the second abutting piece (13) is arranged on the side of the pressing piece (12) close to the bearing piece (11) along the third direction (Z); and the second abutting piece (13) is arranged on the side of the abutting seat (23) away from the connecting seat (22) along the first direction (X); The second abutting piece (13) is arranged on the side of the pressing piece (12) close to the bearing piece (11) along the third direction (Z), and the second abutting piece (13) at least partially overlaps the first abutting piece (24) in the third direction (Z), and the second abutting piece (13) abuts against the first abutting piece (24) to pull the locking piece (21) out of the locking hole (31) through the first abutting piece (24).

6. The reversible positioning welding fixture of claim 1, wherein, The welding fixture further comprises a rotating shaft (40) extending along the first direction (X), the support (30) has a through hole (32) penetrating through the support (30) along the first direction (X), and the rotating shaft (40) is rotatably arranged in the through hole (32) and connected with the loading part (10) to drive the loading part (10) to rotate.

7. The reversible positioning welding fixture of claim 4, wherein, The locking piece (21) comprises: A sliding block (211) slidingly arranged in the sliding hole (221); A plug-in rod (212) connected with the sliding block (211) and arranged on the side of the sliding block (211) close to the connecting seat (22) along the first direction (X), and at least part of the plug-in rod (212) is slidingly inserted in the locking hole (31) along the first direction (X) in the locking state.

8. The reversible positioning welding fixture of claim 7, wherein, The locking part (20) further comprises a limiting block (27) connected with the connecting seat (22) and arranged on the side of the connecting seat (22) close to the support (30) along the first direction (X); The sliding block (211) at least partially overlaps the limiting block (27) in the first direction (X) to abut against and limit the sliding block (211) in the locking state.

9. The reversible positioning welding fixture of claim 7, wherein, Along the first direction (X), one side of the sliding block (211) close to the abutting seat (23) is provided with a connecting groove (2111), the connecting rod (25) is arranged in the connecting groove (2111) and penetrates the guide groove (241); The guide groove (241) penetrates the sliding block (211) along the third direction (Z) to provide a space for the movement of the first abutting piece (24).

10. The reversible positioning welding fixture of claim 3, wherein, The abutting seat (23) comprises: A first abutting table (231) arranged on one side of the first abutting piece (24) close to the carrier (11) along the third direction (Z); the first abutting piece (24) abuts against the first abutting table (231) along the third direction (Z) to provide support for the first abutting piece (24); A second abutting table (232) whose orthographic projection at least partially overlaps with the orthographic projection of the locking piece (21) along the second direction (Y); a containing groove (2321) is arranged on one side of the second abutting table (232) close to the locking piece (21) along the second direction (Y), and the containing groove (2321) is used for containing at least part of the locking piece (21); The locking part (20) further comprises an elastic piece (26) arranged in the containing groove (2321), and the elastic force direction of the elastic piece (26) is collinear with the first direction (X); along the first direction (X), both ends of the elastic piece (26) abut against the groove bottom of the containing groove (2321) and the locking piece (21) respectively to push the locking piece (21) away from the second abutting table (232).

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