Welding fixtures and welding equipment

Abstract

This invention discloses a welding fixture, comprising: a base, including a bottom plate and a first mounting plate, the first mounting plate being disposed on the bottom plate along a first direction; a positioning mechanism disposed on the first mounting plate, the positioning mechanism including a first positioning mold and a second positioning mold, the second positioning mold and the first positioning mold being sequentially disposed along a second direction, the second direction intersecting the first direction, the second positioning mold being disposed along a third direction with an insert for engaging with a third workpiece, the third direction intersecting with both the first and second directions; and a clamping mechanism disposed on the bottom plate, the clamping mechanism being used to clamp the first workpiece, the second workpiece, and the third workpiece along the second direction. By using the positioning mechanism to achieve preliminary positioning of the first workpiece, the second workpiece, and the third workpiece, and finally using the clamping mechanism to clamp the first workpiece, the second workpiece, and the third workpiece in the positioning mechanism, the workpiece positioning is completed, reducing workpiece shaking during welding and improving positioning accuracy.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, and in particular to a welding fixture and welding equipment thereof. Background Technology

[0002] During the production of the U-bolt seat in the axle housing component, the baffle needs to be welded to the load sensing valve bracket, and then the load sensing valve bracket is welded to the U-bolt seat. However, the U-bolt seat, baffle and load sensing valve bracket are small in size, and the existing welding fixtures are not suitable. It is difficult to achieve positioning in the existing welding fixtures, and even if positioning is possible in the existing welding fixtures, the positioning accuracy is low. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a welding fixture and welding equipment thereof, which can realize the welding of U-bolt seats, baffles, and load-sensing valve brackets.

[0004] According to a first aspect of the present invention, a welding fixture includes: a base, comprising a base plate and a first mounting plate, the first mounting plate being disposed on the base plate along a first direction; a positioning mechanism disposed on the first mounting plate, the positioning mechanism including a first positioning mold and a second positioning mold, the second positioning mold and the first positioning mold being sequentially disposed along a second direction, the second direction intersecting the first direction, the first positioning mold being used to position a first workpiece, the second positioning mold being used to position a second workpiece and a third workpiece, the second positioning mold being provided with an insert member, the insert member being inserted into the third workpiece along a third direction, the third direction intersecting the first direction and the second direction respectively; and a clamping mechanism disposed on the base plate, the clamping mechanism being used to clamp the first workpiece, the second workpiece and the third workpiece along the second direction.

[0005] According to the first aspect of the present invention, the welding fixture has at least the following beneficial effects: by placing the first workpiece into the first positioning mold and placing the second and third workpieces onto the second positioning mold, the first, second, and third workpieces are positioned along the first direction; then, by inserting the connector into the third workpiece along the third direction, the first, second, and third workpieces are positioned along the third direction; finally, by pressing the first, second, and third workpieces along the second direction through the clamping mechanism, the first, second, and third workpieces are positioned along the second direction, thus achieving positioning of the workpieces in three directions, improving positioning accuracy, reducing workpiece wobbling during welding, and improving welding accuracy.

[0006] According to some embodiments of the present invention, the first positioning mold includes a first positioning block and two second positioning blocks, the two second positioning blocks are symmetrically arranged on both sides of the first positioning block, the first positioning block is located on the lower side of the second positioning block, and the first positioning block and the second positioning blocks cooperate to position the first workpiece.

[0007] According to some embodiments of the present invention, the second positioning mold has a first positioning groove and a second positioning groove, both of which are arranged in a vertical direction. The first positioning groove matches the second workpiece, and the second positioning groove matches the third workpiece.

[0008] According to some embodiments of the present invention, the upper end of the first positioning groove is provided with a clearance opening, and the lower end of the first positioning groove is provided with a first limiting part.

[0009] According to some embodiments of the present invention, the second positioning mold protrudes to form a connecting portion, and the connecting portion protrudes to form a second limiting portion on one side facing the second positioning groove. The second limiting portion extends into the second positioning groove and is located at the lower end of the second positioning groove.

[0010] According to some embodiments of the present invention, the clamping mechanism includes a base and a clamping assembly, the base being disposed on the base, the clamping assembly being disposed on the base, and the clamping assembly being used to clamp the third workpiece onto the second workpiece.

[0011] According to some embodiments of the present invention, the base includes a base plate and a second mounting plate, the second mounting plate being vertically disposed on the base plate, and the movable end of the clamping assembly passing through the second mounting plate.

[0012] According to some embodiments of the present invention, the clamping assembly includes a first driving member, the movable end of which passes through the second mounting plate.

[0013] According to some embodiments of the present invention, the clamping assembly includes a second driving member and a movable rod, the movable rod being hinged to the second mounting plate, one end of the movable rod being hinged to the second driving member, and the second driving member driving the movable rod to rotate in a vertical plane.

[0014] The welding equipment according to a second aspect embodiment of the present invention has at least the following beneficial effects: by placing the first workpiece into the first positioning mold, the first workpiece is initially positioned; then, the second and third workpieces are placed on the second positioning mold, and the second and third workpieces are initially positioned; finally, the first, second, and third workpieces are pressed into the first and second positioning molds by the clamping mechanism, and then welding can be performed. The cooperation between the clamping mechanism and the positioning mechanism facilitates the positioning of the workpieces, while reducing the shaking of the workpieces during the welding process and improving the welding accuracy.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a first embodiment of the welding fixture according to a first aspect of the present invention;

[0018] Figure 2 This is a left view of the welding fixture according to a first aspect embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the positioning mechanism in the welding fixture according to a first aspect embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a second embodiment of the welding fixture according to the first aspect of the present invention;

[0021] Figure 5 This is a schematic diagram illustrating the operation of a first embodiment of the welding fixture according to a first aspect of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] Base 110, first mounting plate 120;

[0024] First positioning block 210, second positioning block 220;

[0025] Second positioning mold 310, plug-in part 311, connecting part 312, first positioning groove 313, second limiting part 314, second positioning groove 315, first limiting part 316;

[0026] Base plate 411, second mounting plate 412, first driving component 421, second driving component 422, movable rod 423;

[0027] First workpiece 500, second workpiece 600, third workpiece 700. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0032] In the embodiments of the present invention, the first workpiece is a U-shaped bolt seat, the second workpiece is a baffle, and the third workpiece is a load-sensing valve bracket as an example for illustration.

[0033] Reference Figure 1 and Figure 5The welding fixture of a first aspect embodiment of the present invention includes: a base, including a base plate 411 and a first mounting plate 120, the first mounting plate 120 being disposed on the base plate 411 along a first direction; a positioning mechanism disposed on the first mounting plate 120, the positioning mechanism including a first positioning mold and a second positioning mold 310, the second positioning mold 310 and the first positioning mold being disposed sequentially along a second direction, the second direction intersecting the first direction, the first positioning mold being used to position a first workpiece 500, the second positioning mold 310 being used to position a second workpiece 600 and a third workpiece 700, the second positioning mold being provided with a connector, the connector being inserted and engaged with the third workpiece along a third direction, the third direction intersecting the first direction and the second direction respectively; and a clamping mechanism disposed on the base plate 411, the clamping mechanism being used to clamp the first workpiece 500, the second workpiece 600 and the third workpiece 700 along the second direction.

[0034] By placing the first workpiece 500 into the first positioning mold, the first positioning mold matches the first workpiece 500, achieving positioning of the first workpiece 500 along the first direction. Then, the second workpiece 600 and the third workpiece 700 are placed on the second positioning mold 310, achieving positioning of the second workpiece 600 and the third workpiece 700 along the first direction. Along the second direction, the second workpiece 600 and the third workpiece 700 abut against each other, with the second workpiece 600 abutting against the first workpiece 500. Through the insertion piece 311, the third workpiece 700 is inserted into the third workpiece 700 along the third direction, achieving initial positioning of the third workpiece 700 along the second direction, while simultaneously restricting the second workpiece 600. The displacement of the first workpiece 500 and the third workpiece 700 along the second direction achieves the initial positioning of the second workpiece 600 and the third workpiece 700 along the second direction. Finally, through the clamping mechanism, the first workpiece 500, the second workpiece 600 and the third workpiece 700 are pressed into the first positioning mold and the second positioning mold 310, completing the positioning of the first workpiece 500, the second workpiece 600 and the third workpiece 700 along the second direction. Through the cooperation of the positioning mechanism and the clamping mechanism, the positioning of the first workpiece, the second workpiece and the third workpiece along the first direction, the second direction and the third direction is achieved, improving the positioning accuracy of the workpiece, reducing the shaking of the workpiece during the welding process and improving the welding accuracy.

[0035] Understandably, referring to Figure 1The first positioning mold includes a first positioning block 210 and two second positioning blocks 220. The two second positioning blocks 220 are symmetrically arranged on both sides of the first positioning block 210, with the first positioning block 210 located below the second positioning blocks 220. The first positioning blocks 210 and the second positioning blocks 220 cooperate to position the first workpiece 500. The first workpiece 500's own weight causes it to adhere to the first positioning block 210, improving positioning accuracy. Then, the second positioning blocks 220 also adhere to the first workpiece 500, achieving three-sided positioning of the first workpiece 500. This facilitates quick and easy initial positioning of the first workpiece 500. Simultaneously, vertically loading the first workpiece 500 subjects it to a horizontal force from the clamping mechanism, restricting its vertical and horizontal movement, accurately positioning the first workpiece 500, and improving welding accuracy.

[0036] Understandably, referring to Figure 1 and Figure 3 The second positioning mold 310 has a first positioning groove 313 and a second positioning groove 315, both of which are vertically oriented. The first positioning groove 313 matches the second workpiece 600, and the second positioning groove 315 matches the third workpiece 700. By inserting the second workpiece 600 into the first positioning groove 313, the inner wall of the first positioning groove 313 abuts against the second workpiece 600, reducing the wobbling of the second workpiece 600 and improving positioning accuracy. Similarly, the third workpiece 700 is inserted into the second positioning groove 315, abutting against the second workpiece 600, and simultaneously abutting against the inner wall of the second positioning groove 315. This abutting of the third workpiece 700 with the second workpiece 600 also reduces the wobbling of the third workpiece 700 and improves welding accuracy.

[0037] Understandably, referring to Figure 1 and Figure 3 The upper end of the first positioning groove 313 is provided with a clearance opening, and the lower end of the first positioning groove 313 is provided with a first limiting part 316. By providing the clearance opening, the second workpiece 600 can protrude from the clearance opening into the first positioning groove 313 and abut against the first workpiece 500. At the same time, the first limiting part 316 can restrict the movement of the second workpiece 600 in the first direction. In conjunction with the clamping mechanism, the movement of the second workpiece 600 in the second direction is restricted, thereby achieving the positioning of the second workpiece 600.

[0038] Understandably, referring to Figure 1The second positioning mold 310 has a protruding connecting portion 312, and the connecting portion 312 is provided with a connector 311. The connector 311 can pass through the connecting portion 312 and engage with the third workpiece 700. The second positioning groove 315 reduces the third-direction wobbling of the third workpiece 700. The connector 311 engages with the third workpiece 700, reducing the first-direction wobbling of the third workpiece 700, further improving the stability of the third workpiece 700 and improving the welding accuracy.

[0039] Understandably, referring to Figure 1 and Figure 3 A second limiting part 314 protrudes from the connecting part 312 toward the second positioning groove 315, extending into the second positioning groove 315 and located at the lower end of the second positioning groove 315. The second limiting part 314 prevents the third workpiece 700 from falling downwards when the workpiece is inserted into the groove, while simultaneously positioning the third workpiece 700 along the first direction. This, in conjunction with the clamping mechanism, positions the third workpiece 700 along the second direction.

[0040] Understandably, referring to Figure 1 The clamping mechanism includes a base 110 and a clamping assembly. The base 110 is mounted on a pedestal, and the clamping assembly is mounted on the base 110. The clamping assembly is used to clamp the third workpiece 700 onto the second workpiece 600. By clamping the third workpiece 700 onto the second workpiece 600 through the clamping assembly, the second workpiece 600 is subjected to the pushing force of the clamping assembly and remains in contact with the first workpiece 500, thereby maintaining the stability of the workpiece position during welding and improving welding accuracy.

[0041] Understandably, referring to Figure 1 The base 110 includes a base plate 411 and a second mounting plate 412. The second mounting plate 412 is vertically mounted on the base plate 411, and the movable end of the clamping assembly passes through the second mounting plate 412. The position of the clamping assembly is adjusted via the second mounting plate 412 so that the clamping assembly is directly aligned with the second positioning mold 310.

[0042] Understandably, referring to Figure 1 and Figure 2 In a first embodiment of the clamping assembly, the clamping assembly includes a first driving member 421. The movable end of the first driving member 421 passes through the second mounting plate 412 and clamps the third workpiece 700, thereby positioning the first workpiece 500, the second workpiece 600 and the third workpiece 700 on the positioning mechanism. The first driving member 421 can be a cylinder, a hydraulic cylinder, an electric actuator, etc.

[0043] Understandably, referring to Figure 4In a second embodiment of the clamping assembly, the clamping assembly includes a second driving member 422 and a movable rod 423. The movable rod 423 is hinged to the second mounting plate 412, and one end of the movable rod 423 is hinged to the second driving member 422. The second driving member 422 drives the movable rod 423 to rotate in a second direction. The other end of the movable rod 423 abuts against the third workpiece 700 and clamps the third workpiece 700, thereby stabilizing the first workpiece 500, the second workpiece 600, and the third workpiece 700 in the positioning mechanism. Furthermore, the second driving member 422 can be a cylinder, a hydraulic cylinder, an electric actuator, etc.

[0044] The welding apparatus of a second aspect embodiment of the present invention includes the welding fixture of the first aspect embodiment of the present invention. The first workpiece 500 is initially positioned by placing it into the first positioning mold. Then, the second workpiece 600 and the third workpiece 700 are placed onto the second positioning mold 310, achieving initial positioning of the second workpiece 600 and the third workpiece 700. Finally, a clamping mechanism presses the first workpiece 500, the second workpiece 600, and the third workpiece 700 into the first positioning mold and the second positioning mold 310, allowing welding to proceed. The cooperation between the clamping mechanism and the positioning mechanism facilitates workpiece positioning, reduces workpiece movement during welding, and improves welding accuracy.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A welding fixture, characterized in that, include: The base includes a base plate and a first mounting plate, wherein the first mounting plate is disposed on the base plate along a first direction; A positioning mechanism is disposed on the first mounting plate. The positioning mechanism includes a first positioning mold and a second positioning mold. The second positioning mold and the first positioning mold are arranged sequentially along a second direction, which intersects with the first direction. The first positioning mold is used to position a first workpiece, and the second positioning mold is used to position a second workpiece and a third workpiece. The second positioning mold is provided with a connector. The connector is inserted and engaged with the third workpiece along a third direction, which intersects with both the first direction and the second direction. The second positioning mold has a first positioning groove and a second positioning groove. Both the first positioning groove and the second positioning groove are arranged vertically. The first positioning groove matches the second workpiece, and the second positioning groove matches the third workpiece. The upper end of the first positioning groove has a clearance opening, and the lower end of the first positioning groove has a first limiting part. A clamping mechanism is disposed on the base plate, and the clamping mechanism is used to sequentially clamp the third workpiece, the second workpiece and the first workpiece along the second direction.

2. The welding fixture according to claim 1, characterized in that, The first positioning mold includes a first positioning block and two second positioning blocks. The two second positioning blocks are symmetrically arranged on both sides of the first positioning block. The first positioning block is located below the second positioning block. The first positioning block and the second positioning blocks cooperate to position the first workpiece.

3. The welding fixture according to claim 1, characterized in that, The second positioning mold has a protruding connecting part, and the connecting part has a protruding second limiting part on one side facing the second positioning groove. The second limiting part extends into the second positioning groove and is located at the lower end of the second positioning groove.

4. The welding fixture according to claim 1, characterized in that, The clamping mechanism includes a base and a clamping assembly. The base is disposed on the pedestal, and the clamping assembly is disposed on the base. The clamping assembly is used to clamp the third workpiece onto the second workpiece.

5. The welding fixture according to claim 4, characterized in that, The base includes a base plate and a second mounting plate, the second mounting plate being vertically mounted on the base plate, and the movable end of the clamping assembly passing through the second mounting plate.

6. The welding fixture according to claim 5, characterized in that, The clamping assembly includes a first driving member, the movable end of which passes through the second mounting plate.

7. The welding fixture according to claim 5, characterized in that, The clamping assembly includes a second driving member and a movable rod. The movable rod is hinged to the second mounting plate, and one end of the movable rod is hinged to the second driving member. The second driving member drives the movable rod to rotate in a vertical plane.

8. Welding equipment, characterized in that, It includes the welding fixture as described in any one of claims 1 to 7.

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