A three-way valve welding tool

Abstract

The present invention relates to the technical field of welding tooling, and in particular to a three-way valve welding tooling, comprising a support seat; a limit assembly, comprising a first mounting seat and a second mounting seat arranged relatively, the first mounting seat and the second mounting seat being coaxially rotatably connected to the support seat, the first mounting seat being provided with a first card slot, the second mounting seat being provided with a second card slot, a first positioning slot being formed between the first card slot and the second card slot, and a through hole being provided on a side wall opposite to the first card slot and the second card slot; a locking assembly, comprising a locking screw, the locking screw passing through the through hole and being threadedly connected to the through hole; a movable pull rod, which is installed on the support seat, and a second positioning slot is provided on the movable pull rod. The present invention enables spot welding and rotary welding of the three-way valve to be realized on the same tooling, without the need to frequently replace the tooling, thereby improving welding efficiency, and avoiding problems such as cold welding, loose welding, and welding deformation caused by positioning problems after replacing the tooling.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, in particular to a three-way valve welding tooling. Background Art

[0002] At present, the existing welding method of the three-way valve 5 is generally to first spot weld the three-way joint 52 and the two-way joint 51, and then clamp the spot-welded three-way valve with a laser welder for 360° rotation welding. During the spot welding and rotation welding processes, different clamps need to be used for clamping respectively. Therefore, after replacing the clamp, it is easy to cause problems such as cold welding, loose welding, welding deformation, low efficiency, etc. due to inaccurate positioning of the three-way valve, and it is easy to cause the appearance, welding sealing performance, and dimensional accuracy of the product to fail to meet the requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a three-way valve welding tool to achieve reliable clamping of the three-way valve during spot welding and rotation welding without replacing the tool clamping, thereby solving the problems of loose welding, welding deformation, sealing performance and dimensional accuracy of the three-way valve.

[0004] In order to achieve the above object, the present invention provides a three-way valve welding tool, comprising:

[0005] Support seat;

[0006] A limit assembly, comprising a first mounting seat and a second mounting seat arranged opposite to each other, wherein the first mounting seat and the second mounting seat are coaxially rotatably connected to the support seat, the first mounting seat is provided with a first clamping groove, the second mounting seat is provided with a second clamping groove, a first positioning groove for accommodating a three-way valve is formed between the first clamping groove and the second clamping groove, and a through hole is provided on a side wall opposite to the first clamping groove and the second clamping groove;

[0007] A locking assembly includes a locking screw that passes through the through hole and is threadedly connected to the through hole; and

[0008] The movable pull rod is installed on the support seat and can slide along the axial direction thereof. The movable pull rod is provided with a second positioning groove.

[0009] Optionally, the support seat includes a first support portion and a second support portion, the first mounting seat is rotatably connected to the first support portion, and the second mounting seat is rotatably connected to the second support portion.

[0010] Optionally, both the first support portion and the second support portion are provided with mounting holes, a bearing is passed through the mounting holes, and the first mounting seat and the second mounting seat are respectively mounted on the first support portion and the second support portion through the bearings.

[0011] Optionally, arc-shaped grooves are provided on the bottom edges of the first card slot and the second card slot.

[0012] Optionally, the locking assembly further includes a rotating member, which is disposed at one end of the locking screw close to the first positioning groove and is used for rotationally connecting the locking screw to the three-way valve.

[0013] Optionally, the rotating member includes a sphere and a rotating shaft, and the rotating shaft is rotatably connected to the locking screw via the sphere.

[0014] Optionally, a claw portion is provided at one end of the locking screw, and an annular groove is provided on the outer peripheral wall of the rotating shaft, and the claw portion is clamped in the annular groove.

[0015] Optionally, a limiting protrusion is provided on the movable pull rod, and the limiting protrusion includes a first protrusion and a second protrusion arranged opposite to each other, and the second positioning groove is formed between the first protrusion and the second protrusion.

[0016] Optionally, the movable pull rod has at least two groups of limiting protrusions arranged at intervals along its axial direction, and the first mounting seat and / or the second mounting seat is provided with a blocking portion, which can be embedded in the second positioning groove to limit the rotation of the first mounting seat and / or the second mounting seat.

[0017] Optionally, the movable pull rod is provided with a limiting groove extending along its axial direction, the support seat is provided with a plug hole, a plug pin is inserted into the plug hole, and one end of the plug pin protrudes from the support seat and extends into the limiting groove.

[0018] The implementation of the embodiments of the present invention has the following technical effects:

[0019] The present invention can improve the welding stability of the three-way valve and ensure the welding quality of the three-way valve. The two two-way joints of the three-way valve are respectively embedded in the first clamping groove and the second clamping groove for positioning. The three-way joint is arranged between the two two-way joints. The locking screw rotates relative to the through hole and cooperates with the side wall of the second clamping groove to press and fix the two two-way joints and the three-way joint so that the positions of the interfaces are close to each other. Then, the movable pull rod is pulled to embed one end of the three-way joint into the second positioning groove to avoid the relative rotation of the three-way joint and the two-way joint, thereby achieving the fixation of the three joints of the three-way valve and ensuring the welding size and welding quality of the spot-welded three-way valve. After the spot welding is completed, the movable pull rod is pulled to release the limit of the second positioning groove on the three-way joint. At this time, the rotation limit assembly drives the three-way valve to rotate 360 ​​degrees to complete the rotation welding at the interface between the three-way joint and the two-way joint, so that the spot welding and rotation welding of the three-way valve are both realized on the same tooling, without the need to frequently replace the tooling, thereby improving the welding efficiency and avoiding the problems of false welding, loose welding, welding deformation, etc. caused by positioning problems after the tooling is replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0021] Figure 2 is an exploded view of a preferred embodiment of the present invention;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 is a cross-sectional view of a preferred embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of a second mounting base in a preferred embodiment of the present invention;

[0025] Figure 6 It is a structural diagram of a three-way valve.

[0026] Description of reference numerals:

[0027] 1. Support seat, 11. First support part, 12. Second support part, 13. Bearing, 14. Pin, 2. Limiting assembly, 21. First mounting seat, 211. First slot, 22. Second mounting seat, 221. Second slot, 222. Rotating shaft, 23. Arc groove, 24. Blocking part, 3. Locking assembly, 31. Locking screw, 311. Claw part, 32. Rotating member, 321. Ball, 322. Rotating shaft, 322a. Annular groove, 4. Moving pull rod, 41. Second positioning groove, 42. Limiting protrusion, 421. First protrusion, 422. Second protrusion, 43. Limiting groove, 5. Three-way valve, 51. Two-way joint, 52. Three-way joint. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0031] refer to Figure 1 - Figure 6 One embodiment of the present invention provides a three-way valve welding tool, including a support seat 1, a limit assembly 2, a locking assembly 3 and a movable pull rod 4.

[0032] Among them, the limit assembly 2 includes a first mounting seat 21 and a second mounting seat 22 arranged relatively to each other, and the first mounting seat 21 and the second mounting seat 22 are coaxially rotatably connected to the support seat 1. The first mounting seat 21 is provided with a first card slot 211, and the second mounting seat 22 is provided with a second card slot 221. A first positioning groove for accommodating the three-way valve 5 is formed between the first card slot 211 and the second card slot 221, and a through hole is provided on a side wall opposite to the first card slot 211 and the second card slot 221; the locking assembly 3 includes a locking screw 31, and the locking screw 31 passes through the through hole and is threadedly connected to the through hole; the movable pull rod 4 is installed on the support seat 1 and can slide along its axial direction, and the movable pull rod 4 is provided with a second positioning groove 41.

[0033] Based on the above structure, one embodiment of the present invention can improve the welding stability of the three-way valve 5 and ensure the welding quality of the three-way valve 5. The two two-way connectors 51 of the three-way valve 5 are respectively embedded in the first groove 211 and the second groove 221 for positioning. The three-way connector 52 is arranged between the two two-way connectors. The locking screw 31 rotates relative to the through hole and cooperates with the side wall of the second groove 221 to press and fix the two two-way connectors 51 and the three-way connector 52 so that the positions of the interfaces are close to each other. Then, the movable pull rod 4 is pulled to make one end of the three-way connector 52 embedded in the second positioning groove 41 to prevent the three-way connector 52 from interfering with the two The through joint 51 rotates relatively to each other, thereby realizing the fixation of the three joints of the three-way valve 5 and ensuring the welding size and welding quality of the spot-welded three-way valve 5. After the spot welding is completed, the movable pull rod 4 is pulled to release the limit of the second positioning groove 41 on the three-way joint 52. At this time, the rotating limit assembly 2 drives the three-way valve 5 to realize 360° rotation, and completes the rotation welding at the interface between the three-way joint 52 and the two-way joint 51, so that the spot welding and rotation welding of the three-way valve 5 are both realized on the same tooling, without the need to frequently replace the tooling, thereby improving the welding efficiency and avoiding problems such as cold welding, loose welding, welding deformation, etc. caused by positioning problems after replacing the tooling.

[0034] For further information, please refer to Figure 1 - Figure 4The support seat 1 in this embodiment includes a first support portion 11 and a second support portion 12, the first mounting seat 21 is rotatably connected to the first support portion 11, and the second mounting seat 22 is rotatably connected to the second support portion 12. Specifically, in order to achieve stable installation of the first mounting seat 21 and the second mounting seat 22, the first support portion 11 and the second support portion 12 of this embodiment are both provided with mounting holes, and bearings 13 are passed through the mounting holes. The first mounting seat 21 and the second mounting seat 22 are respectively installed on the first support portion 11 and the second support portion 12 through the bearings 13.

[0035] Among them, please refer to Figure 5 The bottom edges of the first card slot 211 and the second card slot 221 are both provided with an arc-shaped groove 23, so that when the two two-way connectors 51 are inserted into the first card slot 211 and the second card slot 221, they can fit with the bottom of the first card slot 211 and the second card slot 221, so that the two-way connectors 51 can be stably and reliably embedded in the card slot to prevent shaking during welding.

[0036] Furthermore, the second mounting seat 22 in this embodiment is provided with a rotating shaft portion 222, which is connected to the driving device through the rotating shaft portion 222 to achieve automatic rotation and positioning during the welding process, thereby further improving the processing efficiency and processing accuracy.

[0037] For further optimization, please refer to Figure 2 - Figure 4 The locking assembly 3 in this embodiment also includes a rotating member 32, which is arranged at one end of the locking screw 31 close to the first positioning groove, and is used for the locking screw 31 to be rotatably connected with the three-way valve 5, so that the locking screw 31 can rotate relative to the three-way valve 5 during the process of locking the three-way valve 5, thereby preventing the locking screw 31 from driving the three-way valve 5 to rotate when rotating and locking, causing inaccurate positioning of the interface between the two-way joint 51 and the three-way joint 52, resulting in cold welding and loose welding.

[0038] Specifically, the rotating member 32 in an embodiment of the present invention includes a sphere 321 and a rotating shaft 322, and the rotating shaft 322 is rotatably connected to the locking screw 31 through the sphere 321. Furthermore, a claw portion 311 is provided at one end of the locking screw 31, and an annular groove 322a is provided on the outer peripheral wall of the rotating shaft 322. The claw portion 311 is clamped in the annular groove 322a, so that the locking screw 31 drives the rotating shaft 322 to move during the movement, thereby realizing the locking and quick unlocking of the three-way valve 5 and improving the efficiency of clamping and removing the three-way valve 5. In order to facilitate the rotation of the locking screw 31, a handle portion is provided at one end of the locking screw 31, which is convenient for the operator to hold and rotate, and is more convenient to use.

[0039] Among them, please refer to Figure 2In this embodiment, a limiting protrusion 42 is provided on the movable rod 4, and the limiting protrusion 42 includes a first protrusion 421 and a second protrusion 422 arranged relatively to each other, and a second positioning groove 41 is formed between the first protrusion 421 and the second protrusion 422. Specifically, the movable rod 4 in this embodiment is arranged below the limiting assembly 2. When the three-way valve 5 is arranged in the first positioning groove, the movable rod 4 is pulled to make the limiting protrusion 42 correspond to the position of the three-way joint 52 of the three-way valve 5, so that the three-way joint 52 is embedded in the second positioning groove 41, and the rotation of the three-way joint 52 in two directions is limited by the first protrusion 421 and the second protrusion 422, so as to fix the dimensional accuracy of the connection between the three-way joint 52 and the two two-way joints 51.

[0040] Furthermore, the movable pull rod 4 is provided with at least two groups of limiting protrusions 42 spaced apart along its axial direction, and the first mounting seat 21 and the second mounting seat 22 are both provided with a blocking portion 24, which can be embedded in the second positioning groove 41 to limit the rotation of the first mounting seat 21 and the second mounting seat 22. On the one hand, it blocks the rotation of the three-way joint 52, and on the other hand, it blocks the rotation of the limiting assembly 2, so that the relative position of the three-way joint 52 and the limiting assembly 2 remains unchanged, that is, the position of the three-way joint 52 and the two-way joint 51 arranged in the limiting assembly 2 remains unchanged.

[0041] Please refer to Figure 2 - Figure 4 The movable pull rod 4 is provided with a limiting groove 43 extending along its axial direction in order to limit the moving distance and position of the movable pull rod 4 in the present embodiment, and the supporting seat 1 is provided with an insertion hole, and a latch 14 is inserted in the insertion hole, and one end of the latch 14 protrudes out of the supporting seat 1 and extends into the limiting groove 43. Through the limitation of the limiting groove 43 and the latch 14, when the movable pull rod 4 moves to both ends, when it is pulled to the point where it can no longer be pulled, it moves to a position that blocks the three-way joint 52 or avoids the three-way joint 52, thereby improving the efficiency of tool use, and no operator needs to observe and judge. Specifically, when the rightmost end of the limiting groove 43 in the present embodiment abuts against the latch 14, the limiting protrusion 42 is misaligned with the three-way joint 52 and the blocking portion 24, so that the limiting assembly 2 can drive the three-way valve 5 to rotate to achieve 360° welding, and when the leftmost end of the limiting groove 43 abuts against the latch 14, the three-way joint 52 and the blocking portion 24 are respectively embedded in the second positioning groove 41 to limit the rotation of the three-way valve 5 and the limiting assembly 2.

[0042] The implementation process of the present invention is:

[0043] First, the two two-way connectors 51 constituting the three-way valve 5 are respectively placed into the first slot 211 and the second slot 221, and the three-way connector 52 is placed between the two two-way connectors 51. The locking screw 31 is rotated to lock the two two-way connectors 51 and the three-way connector 52. Then, the movable pull rod 4 is pulled rightward to the rightmost end, and the three-way connector 52 is embedded in the second positioning slot 41 to fix the three-way connector 52.

[0044] The driving device clamps the rotating part of the second mounting seat 22, and then laser spot welds the connection between the three-way joint 52 and the two-way joint 51;

[0045] After the spot welding is completed, the movable pull rod 4 is pushed to the left to the leftmost end, the limiting protrusion 42 and the three-way joint 52 are staggered, and the driving device drives the second mounting seat 22 to rotate 360°, the second mounting seat 22 drives the three-way valve 5 to rotate, and the three-way valve 5 drives the first mounting seat 21 to rotate. During the rotation of the three-way valve 5, the connection between the three-way joint 52 and the two-way joint 51 is laser welded;

[0046] After welding is completed, the locking screw 31 is rotated to unlock the three-way valve 5, and the welded three-way valve 5 is taken out.

[0047] In summary, the present invention can improve the welding stability of the three-way valve 5 and ensure the welding quality of the three-way valve 5. The two two-way connectors 51 of the three-way valve 5 are respectively embedded in the first groove 211 and the second groove 221 for positioning. The three-way connector 52 is arranged between the two two-way connectors. The locking screw 31 rotates relative to the through hole and cooperates with the side wall of the second groove 221 to press and fix the two two-way connectors 51 and the three-way connector 52 so that the positions of the interfaces are tightly attached. Then, the movable pull rod 4 is pulled to make one end of the three-way connector 52 embedded in the second positioning groove 41 to avoid the three-way connector 52 from interfering with the two-way connector 51. The rotation is achieved, thereby fixing the three joints of the three-way valve 5, ensuring the welding size and welding quality of the spot-welded three-way valve 5. After the spot welding is completed, the movable pull rod 4 is pulled to release the limit of the second positioning groove 41 on the three-way joint 52. At this time, the rotation limit assembly 2 drives the three-way valve 5 to achieve a 360° rotation, completing the rotational welding at the interface between the three-way joint 52 and the two-way joint 51, so that the spot welding and rotational welding of the three-way valve 5 are both achieved on the same tooling, without the need to frequently replace the tooling, thereby improving the welding efficiency and avoiding problems such as cold welding, loose welding, welding deformation, etc. caused by positioning problems after replacing the tooling.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A three-way valve welding tool, characterized in that: include: Support seat; The limiting assembly comprises a first mounting seat and a second mounting seat arranged opposite to each other, the first mounting seat and the second mounting seat are coaxially rotatably connected to the supporting seat, the first mounting seat is provided with a first clamping groove for positioning the two-way joint, the second mounting seat is provided with a second clamping groove for positioning the two-way joint, a first positioning groove for accommodating a three-way valve is formed between the first clamping groove and the second clamping groove, and a through hole is provided on a side wall opposite to the first clamping groove and the second clamping groove; A locking assembly, comprising a locking screw, wherein the locking screw passes through the through hole and is threadedly connected to the through hole, and the locking screw can cooperate with the side wall of the second slot to press the three-way valve; and A movable pull rod, which is installed on the support seat and can slide along the axial direction thereof, the movable pull rod is provided with a second positioning groove, the movable pull rod is provided with a limiting protrusion, the limiting protrusion includes a first protrusion and a second protrusion arranged oppositely, and the second positioning groove is formed between the first protrusion and the second protrusion; The locking assembly further includes a rotating member, which is disposed at one end of the locking screw close to the first positioning groove and is used for the locking screw to be rotatably connected to the three-way valve; The rotating member comprises a sphere and a rotating shaft, and the rotating shaft is rotatably connected to the locking screw via the sphere; A claw portion is provided at one end of the locking screw, an annular groove is provided on the outer peripheral wall of the rotating shaft, and the claw portion is clamped in the annular groove.

2. The three-way valve welding tool according to claim 1, characterized in that: The support seat includes a first support portion and a second support portion. The first mounting seat is rotatably connected to the first support portion, and the second mounting seat is rotatably connected to the second support portion.

3. The three-way valve welding tool according to claim 2, characterized in that: The first support portion and the second support portion are both provided with mounting holes, bearings are passed through the mounting holes, and the first mounting seat and the second mounting seat are respectively mounted on the first support portion and the second support portion through the bearings.

4. The three-way valve welding tool according to any one of claims 1 to 3, characterized in that: The bottom edges of the first card slot and the second card slot are both provided with arc-shaped grooves.

5. The three-way valve welding tool according to claim 1, characterized in that: The movable pull rod is provided with at least two groups of limiting protrusions spaced apart along its axial direction, and the first mounting seat and / or the second mounting portion is provided with a blocking portion, which can be embedded in the second positioning groove to limit the rotation of the first mounting seat and / or the second mounting portion.

6. The three-way valve welding tool according to claim 1 or 5, characterized in that: The movable pull rod is provided with a limiting groove extending along its axial direction, the support seat is provided with an insertion hole, a latch is inserted into the insertion hole, and one end of the latch protrudes out of the support seat and extends into the limiting groove.

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