Welding positioning mechanism

Abstract

The embodiment of the utility model discloses a welding positioning mechanism which comprises a supporting base and a welding electrode assembly, and the welding electrode assembly is connected to the supporting base. The left positioning assembly is connected to the supporting base and located on one side of the welding electrode assembly; the right positioning assembly is connected to the supporting base and located on the other side of the welding electrode assembly relative to the left positioning assembly. Wherein the left positioning assembly and the right positioning assembly are the same in structure and are symmetrically arranged relative to the welding electrode assembly, and when a welding part is welded and positioned, the left positioning assembly and the right positioning assembly transversely move to be close to the electrode end of the welding electrode assembly, so that the welding part is clamped and positioned. The small air cylinder is adopted to drive the wedge-shaped piece, and the wedge-shaped piece drives the movable positioning unit, so that a large air cylinder is replaced by the small air cylinder, positioning and clamping of a large-size workpiece can be guaranteed, the machining and maintenance cost is lower, and operation is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioning devices, in particular to a welding positioning mechanism. Background Art

[0002] In the field of resistance welding equipment, it is relatively easy to position and fix small parts, which is usually achieved by using cylinders and clamps. However, for welding large parts or accessories, large cylinders are required for clamping and positioning. The disadvantage of large cylinders is that the equipment size is increased and the processing and maintenance costs are high. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a welding positioning mechanism to solve the technical problem of high cost caused by the prior art using a large cylinder for welding positioning.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The embodiment of the utility model provides a welding positioning mechanism, which comprises:

[0006] Support base,

[0007] A welding electrode assembly, wherein the welding electrode assembly is connected to the support base;

[0008] a left positioning assembly, the left positioning assembly being connected to the support base and being located on one side of the welding electrode assembly; and

[0009] a right positioning assembly, the right positioning assembly being connected to the support base and being located at the other side of the welding electrode assembly relative to the left positioning assembly;

[0010] Among them, the left positioning assembly has the same structure as the right positioning assembly and is symmetrically arranged with the welding electrode assembly. When the weld is positioned for welding, the left positioning assembly and the right positioning assembly move laterally to approach the electrode end of the welding electrode assembly to clamp and position the weld.

[0011] Among them, the left positioning assembly includes: a support plate, a driving device connected to the support plate, a first guide unit, a second guide unit and a movable positioning unit; the first guide unit, the second guide unit and the movable positioning unit are linearly distributed in the direction of the welding electrode assembly in sequence, the driving device has a wedge, the wedge has a plane and an inclined surface, the inclined surface is arranged on the side of the wedge opposite to the plane, wherein the plane abuts against the first guide unit, the inclined surface abuts against the second guide unit, and the movable positioning unit is connected to the second guide unit; the driving device drives the wedge to telescopically move, so that the inclined surface drives the second guide unit abutting against it to move toward the direction of the welding electrode assembly, so as to synchronously drive the movable positioning unit to clamp or release the welding part.

[0012] Wherein, the first guide unit and the second guide unit are each provided with a roller, and the inclined surface and the plane are respectively connected to the wheel surface of the roller.

[0013] Wherein, when the wedge-shaped member is controlled by the driving device to telescopically move, the plane always remains perpendicular to the moving direction of the movable positioning unit.

[0014] The first guide unit and the second guide unit have the same structure, and both include: a connecting member, a rotating shaft connected to the connecting member, and a roller rotatably connected to the rotating shaft, and the connecting member is connected to the support plate.

[0015] Wherein, at least one bearing is sleeved between the roller and the rotating shaft.

[0016] Wherein, the mobile positioning unit includes: a guiding unit and a positioning unit, the guiding unit has a guiding structure, the positioning unit is penetrated by the guiding structure, and the end of the guiding unit is connected to the second guiding unit.

[0017] The guide unit is provided with at least one connecting hole, an elastic member is inserted into the connecting hole, and one end of the elastic member abuts against the second guide unit, so as to provide a buffer between the second guide unit and the movable positioning unit.

[0018] Wherein, the positioning unit comprises: a telescopic member, a connecting seat connected to the end of the telescopic member, a positioning terminal fixed on the connecting seat, and the guide structure is a guide hole, and the telescopic member is inserted into the guide hole.

[0019] Wherein, the support base is also provided with an adjusting member, and the adjusting end of the adjusting member abuts against the connecting seat.

[0020] The welding positioning mechanism of the utility model positions the welded part by means of a left positioning component and a right positioning component that have the same structure and are symmetrically arranged. The positioning component uses a small cylinder to drive a wedge, and the wedge drives a moving positioning unit to move closer to or away from the welding electrode, thereby realizing the replacement of the large cylinder by the small cylinder, and can ensure reliable positioning and clamping of large-sized workpieces. The processing and maintenance costs are lower, and the telescopic positioning action is more stable and reliable.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of the welding positioning mechanism of the embodiment of the utility model from different perspectives.

[0023] Figure 3 It is a partial structural schematic diagram of the left positioning component of the welding positioning mechanism according to an embodiment of the utility model.

[0024] Figure 4 It is a partial structural schematic diagram of the second positioning unit and the guide unit of the left positioning assembly of the welding positioning mechanism of an embodiment of the utility model.

[0025] Figure 5 It is a partial structural schematic diagram of the first guide unit of the left positioning assembly of the welding positioning mechanism according to an embodiment of the utility model.

[0026] Figure 6 It is a partially exploded schematic diagram of the first guide unit of the left positioning assembly of the welding positioning mechanism according to an embodiment of the utility model.

[0027] Figure 7 It is a partially exploded schematic diagram of the driving device of the left positioning assembly of the welding positioning mechanism according to an embodiment of the utility model.

[0028] Figure 8 This is an exploded view of the connecting seat portion of the left positioning assembly of the welding positioning mechanism according to an embodiment of the present utility model.

[0029] Fig. 9 It is an exploded view of the guide unit of the left positioning assembly of the welding positioning mechanism according to an embodiment of the utility model.

[0030] Fig.10 This is a schematic diagram of assembling other internal components of the left positioning assembly of the welding positioning mechanism according to an embodiment of the utility model. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] See also Figures 1 to 10 , this embodiment provides a welding positioning mechanism 100, which includes:

[0039] Support base 1,

[0040] A welding electrode assembly 2, wherein the welding electrode assembly 2 is connected to the supporting base 1;

[0041] a left positioning assembly 3, wherein the left positioning assembly 3 is connected to the support base 1 and is located on one side of the welding electrode assembly 2; and

[0042] a right positioning assembly 4, the right positioning assembly 4 being connected to the support base 1 and being located at the other side of the welding electrode assembly 2 relative to the left positioning assembly 3;

[0043] Among them, the left positioning component 3 and the right positioning component 4 have the same structure and are symmetrically arranged with the welding electrode assembly 2. When the weld is positioned for welding, the left positioning component 3 and the right positioning component 4 move laterally to approach the electrode end of the welding electrode assembly 2 to clamp and position the weld.

[0044] Please refer again Figures 3 to 10The left positioning assembly 3 and the right positioning assembly 4 have the same structure. Taking the left positioning assembly 3 as an example, it includes: a support plate 31, a driving device 33 connected to the support plate 31, a first guide unit 32, a second guide unit 34 and a movable positioning unit; the first guide unit 32, the second guide unit 34 and the movable positioning unit are linearly distributed in sequence toward the welding electrode assembly 2, the driving device 33 has a wedge 332, the wedge 332 has a plane 3322 and an inclined surface 3321, and the inclined surface 3321 is arranged on the side of the wedge 332 opposite to the plane 3322. Among them, the plane 3322 abuts against the first guide unit 32, the inclined surface 3321 abuts against the second guide unit 34, and the movable positioning unit is connected to the second guide unit 34; the driving device 33 drives the wedge 332 to telescopically move, so that the inclined surface 3321 drives the second guide unit 34 abutting against it to move toward the direction of the welding electrode assembly 2, thereby synchronously driving the movable positioning unit to clamp or loosen the welding part.

[0045] like Figure 3 As shown, the first guide unit 32 abuts against the plane 3322 of the wedge 332, and the drive device 33 drives the wedge 332 to move in a straight line. Therefore, the first guide unit 32 acts to abut against and limit the plane 3322 of the wedge 332, so that the wedge 332 can only move parallel to the telescopic direction of the drive device 33. The second guide unit 34 abuts against the inclined surface 3322 of the wedge 332, and when the wedge 332 moves, the second guide unit 34 is driven to move perpendicular to the moving direction of the drive device 33, thereby driving the mobile positioning unit to clamp and position the weldment. Since the left positioning assembly 3 adopts a combined transmission structure of the first guide unit 32, the second guide unit 34, the mobile positioning unit and the drive device 33, the drive device 33 does not need to use a large-sized cylinder, and its operation is more stable and reliable, with a longer service life and lower processing and maintenance costs.

[0046] In one embodiment, each of the first guide unit 32 and the second guide unit 34 is provided with a roller 343, and the inclined surface 3321 and the plane 3322 are respectively connected to the wheel surface of the roller 343. The inclined surface 3321 and the plane 3322 with which the roller 343 provided on the first guide unit 32 and the second guide unit 34 slide in contact can reduce friction resistance, making the operation smoother and less abrasive.

[0047] When the wedge-shaped member 332 is controlled by the driving device 33 to telescopically move, the plane 3322 always remains perpendicular to the moving direction of the mobile positioning unit. Under this angle setting, the resistance is minimal and the transmission distance is maximized.

[0048] In this embodiment, the first guide unit 32 and the second guide unit 34 have the same structure. Taking the second guide unit 34 as an example, it includes: a connecting member 341, a rotating shaft 342 connected to the connecting member 341, and a roller 343 rotatably connected to the rotating shaft 342, and the connecting member 341 is connected to the support plate 31.

[0049] The connecting member 341 is a C-shaped member, with an opening 3411 on one side, the rotating shaft 342 is longitudinally connected to the opening, and the roller 343 is passed through the rotating shaft 342, so its rolling surface is in the vertical direction. The connecting member 341 is connected to the top surface of the support plate 31 by screws.

[0050] In order to reduce the friction between the roller 343 and the rotating shaft 342 , at least one bearing 344 is sleeved between the roller 343 and the rotating shaft 342 .

[0051] The mobile positioning unit includes: a guide unit 35 and a positioning unit 36. The guide unit 35 has a guide structure. The positioning unit 36 ​​is inserted into the guide structure, and the end of the guide unit 35 is connected to the second guide unit 34. When the second guide unit 34 is moved by force, it drives the positioning unit 36 ​​to move back and forth along the guide structure of the guide unit 35.

[0052] The guide unit 35 includes: a guide seat 351 and a sealing plate 352. The guide seat 351 is provided with a guide groove 3511. The sealing plate 352 is connected to the opening of the guide groove 3511 to form a guide structure with front and rear openings.

[0053] Among them, at least one connecting hole 3512 is also provided on the guide seat 351 of the guide unit 35, and an elastic member 38 is inserted into the connecting hole 3512. One end of the elastic member 38 abuts against the second guide unit 34, so as to provide buffering between the second guide unit 34 and the movable positioning unit and drive the positioning unit 36 ​​to reset after releasing the welding part.

[0054] like Figure 8 As shown, the positioning unit 36 ​​includes: a telescopic member 364, a connection seat 361 connected to the end of the telescopic member 364, a positioning terminal 363 fixed on the connection seat 361, and the guide structure is a guide hole, and the telescopic member 364 is inserted into the guide hole. Specifically, a connection groove is provided on the connection seat 361, and the rear end portion of the positioning terminal 363 is plugged into the connection groove and is pressed and locked by a locking plate 362 connected to the top of the connection groove.

[0055] like Figure 7As shown, the driving device 33 includes a driving cylinder 331 , which is connected to the support plate 31 through a mounting plate 333 , and a wedge 332 is connected to the telescopic end of the driving cylinder 331 .

[0056] Please refer again Fig.10 The support base is also provided with an adjusting member 37, which includes: a connecting arm 371 and an elastic member 372 passing through the connecting arm 371, one end of the elastic member 372 abuts against the connecting seat 361, and when the telescopic member 364 is extended, its front end is supported by the adjusting member 37.

[0057] The welding positioning mechanism of this embodiment positions the weldment by means of a left positioning assembly and a right positioning assembly that are identical in structure and symmetrically arranged. The positioning assembly uses a small cylinder to drive a wedge, and the wedge drives the mobile positioning unit to move closer to or away from the welding electrode, thereby realizing the replacement of the large cylinder with the small cylinder and ensuring reliable positioning and clamping of large-sized workpieces. The processing and maintenance costs are lower, and the telescopic positioning action is more stable and reliable.

[0058] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A welding positioning mechanism, characterized in that: include: Support base, A welding electrode assembly, wherein the welding electrode assembly is connected to the support base; A left positioning assembly, the left positioning assembly is connected to the support base and is located on one side of the welding electrode assembly; as well as a right positioning assembly, the right positioning assembly being connected to the support base and being located at the other side of the welding electrode assembly relative to the left positioning assembly; Among them, the left positioning assembly has the same structure as the right positioning assembly and is symmetrically arranged with the welding electrode assembly. When the weld is positioned for welding, the left positioning assembly and the right positioning assembly move laterally to approach the electrode end of the welding electrode assembly to clamp and position the weld.

2. The welding positioning mechanism according to claim 1, characterized in that: The left positioning assembly includes: a support plate, a driving device connected to the support plate, a first guide unit, a second guide unit and a movable positioning unit; the first guide unit, the second guide unit and the movable positioning unit are linearly distributed in sequence toward the welding electrode assembly, the driving device has a wedge, the wedge has a plane and an inclined surface, the inclined surface is arranged on the side of the wedge opposite to the plane, wherein the plane abuts against the first guide unit, the inclined surface abuts against the second guide unit, and the movable positioning unit is connected to the second guide unit; the driving device drives the wedge to telescopically move, so that the inclined surface drives the second guide unit abutting therewith to move toward the direction of the welding electrode assembly, so as to synchronously drive the movable positioning unit to clamp or release the welding part.

3. The welding positioning mechanism according to claim 2, characterized in that: The first guide unit and the second guide unit are each provided with a roller, and the inclined surface and the plane are respectively connected to the wheel surface of the roller.

4. The welding positioning mechanism according to claim 3, characterized in that: When the wedge-shaped member is controlled by the driving device to telescopically move, the plane always remains perpendicular to the moving direction of the mobile positioning unit.

5. The welding positioning mechanism according to claim 2, characterized in that: The first guide unit and the second guide unit have the same structure, and both include: a connecting member, a rotating shaft connected to the connecting member, and a roller rotatably connected to the rotating shaft, and the connecting member is connected to the support plate.

6. The welding positioning mechanism according to claim 5, characterized in that: At least one bearing is sleeved between the roller and the rotating shaft.

7. The welding positioning mechanism according to any one of claims 2 to 6, characterized in that: The mobile positioning unit comprises: a guiding unit and a positioning unit, the guiding unit has a guiding structure, the positioning unit is arranged through the guiding structure, and the end of the guiding unit is connected to the second guiding unit.

8. The welding positioning mechanism according to claim 7, characterized in that: The guide unit is also provided with at least one connecting hole, in which an elastic member is inserted, and one end of the elastic member abuts against the second guide unit, so as to provide a buffer between the second guide unit and the movable positioning unit.

9. The welding positioning mechanism according to claim 7, characterized in that: The positioning unit comprises: a telescopic member, a connection seat connected to the end of the telescopic member, and a positioning terminal fixed on the connection seat. The guide structure is a guide hole, and the telescopic member is inserted into the guide hole.

10. The welding positioning mechanism according to claim 9, characterized in that: The support base is also provided with an adjusting member, and the adjusting end of the adjusting member abuts against the connecting seat.

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