Welding machining positioning tool

By designing a stable positioning mechanism and a clamping mechanism, the problem of insufficient adaptability and stability of existing welding processing positioning fixtures is solved, enabling rapid adjustment and stable workpiece positioning, and improving the adaptability and efficiency of multi-variety production.

CN223960781UActive Publication Date: 2026-03-03DALIAN XINJU TECH CO LTD
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Patent Information

Application Number
CN202520585837.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-03
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing welding and positioning fixtures need to be customized for specific workpiece shapes and sizes, resulting in poor adaptability, time-consuming adjustments, and insufficient stability, making it difficult to quickly respond to the needs of multi-variety production.

Method used

Employing a stable positioning and clamping mechanism, and utilizing a threaded structure in conjunction with toothed blocks, it enables rapid adjustment of the clamping table position and workpiece clamping, enhancing positioning stability and adaptability.

Benefits of technology

It enables rapid adjustment of workpiece position, avoids displacement during welding, improves positioning efficiency and adaptability, and enhances the stability of the welding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding machining positioning tools, and discloses a welding machining positioning tool which comprises a support and a welding table fixedly connected with the upper side of the support, a stable positioning mechanism and a clamping mechanism are arranged on the upper side of the welding table, the stable positioning mechanism is arranged on the lower side of the clamping mechanism, and the clamping mechanism is arranged on the support. The stable positioning mechanism comprises a sliding table, the sliding table is slidably connected into the welding table, a two-way stud is rotatably connected into the welding table and is in threaded connection with the sliding table, a sliding frame is fixedly connected to the upper surface of the sliding table, limiting teeth are fixedly connected into the sliding frame, and a sliding box is slidably connected into the sliding frame. An adjusting block is slidably connected into the sliding box, the stable positioning mechanism is used for rapidly adjusting the position of the clamping table, the stable limiting effect can be achieved while sliding adjustment is achieved, and the clamping mechanism is used for clamping a workpiece to be welded, so that the clamping posture of the welded part is increased.
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Description

Technical Field

[0001] This utility model relates to the field of welding processing positioning fixture technology, specifically a welding processing positioning fixture. Background Technology

[0002] Common welding positioning fixtures are specialized devices used to fix and position welding workpieces. Their core function is to ensure the workpiece maintains a precise relative position during welding through mechanical constraints, preventing displacement due to thermal deformation or external forces. Their structure typically includes a base, positioning elements (such as positioning pins and stops), clamping mechanisms (manual clamps, pneumatic / hydraulic grippers), anti-deformation support frames, and guide rails. The working principle is based on the "six-point positioning rule," using positioning elements to restrict the workpiece's movement and rotational freedom in the X / Y / Z axes, while the clamping mechanism applies controllable pressure to fix the workpiece, and rigid supports counteract welding thermal stress. Some fixtures also integrate quick-change modules or sensor-assisted calibration.

[0003] However, such devices often need to be customized for specific workpiece shapes and sizes, resulting in poor adaptability. Moreover, most of these devices rely on threaded structures for positioning, which is time-consuming and requires improved stability. They are also difficult to respond quickly to the needs of multi-variety production and to meet the requirements for more stable support effects. Utility Model Content

[0004] The purpose of this utility model is to provide a welding processing positioning fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding processing positioning fixture, comprising a support and a welding table fixedly connected to the upper side of the support, wherein a stabilizing positioning mechanism and a clamping mechanism are provided on the upper side of the welding table, and the stabilizing positioning mechanism is provided on the lower side of the clamping mechanism;

[0006] The stabilizing and positioning mechanism includes a slide table slidably connected inside a welding table. A bidirectional stud is rotatably connected inside the welding table and threadedly connected to the slide table. A carriage is fixedly connected to the upper surface of the slide table. A limiting tooth is fixedly connected inside the carriage. A sliding box is slidably connected inside the carriage. An adjusting block is slidably connected inside the sliding box. The adjusting block has a locking tooth on one side that engages with the limiting tooth. An adjusting plate is fixedly connected to the lower side of the sliding box and slidably connected inside the carriage. A threaded rod is threadedly connected inside the adjusting plate and slidably connected to the carriage. The threaded rod is rotatably connected to the adjusting block. A spreading spring is sleeved on the outer wall of the threaded rod and fixedly connected to both the adjusting plate and the adjusting block.

[0007] Preferably, the carriage has multiple sliding grooves inside, and the slide box has a slot with a convex cross-section inside.

[0008] Preferably, the adjusting block has a T-shaped cross-section, and a square protrusion structure is fixedly connected to one side of the adjusting block and slidably connected to the inner wall of the carriage.

[0009] Preferably, one end of the threaded rod is provided with a thread structure of the same length as the thickness of the adjusting plate.

[0010] Preferably, the clamping mechanism includes an adjusting cylinder, which is fixedly connected to the upper end of the slide box. A slide plate is slidably connected inside the adjusting cylinder. A threaded column is fixedly connected to the upper surface of the slide plate. A nut is threadedly connected to the outer wall of the threaded column. The nut is rotatably connected to the upper end of the adjusting cylinder. A clamping platform is fixedly connected to the upper end of the threaded column. A slider is slidably connected inside the clamping platform. An adjusting table is slidably connected inside the slider. The adjusting table is slidably connected inside the clamping platform. A gripper is fixedly connected to one side of the slider. A screw is fixedly connected to one side of the adjusting table. A support cylinder is fixedly connected to one side of the clamping platform. The screw is slidably connected inside the support cylinder. An adjusting cap is rotatably connected to one end of the support cylinder. The adjusting cap is threadedly connected to the screw.

[0011] Preferably, the slider has a groove with a convex cross-section inside, and a protrusion is fixedly connected to the inner side of the adjustment platform to fit into the groove inside the slider.

[0012] Preferably, the slider has a cross-shaped cross section.

[0013] Compared with the prior art, this utility model provides a welding processing positioning fixture, which has the following beneficial effects:

[0014] 1. The stable positioning mechanism is used to quickly adjust the position of the clamping table, making it convenient for users to quickly position the workpiece spacing. This mechanism uses a combination of threaded structure and toothed block structure to achieve sliding adjustment while having a more stable limiting effect, avoiding possible displacement during welding and increasing efficiency.

[0015] 2. The clamping mechanism is used to clamp the workpiece to be welded. This mechanism uses multiple jaws to clamp the components of the workpiece. This mechanism, in conjunction with the adjustment function of the stabilizing positioning mechanism, enables the workpiece to be misaligned, increases the clamping posture of the workpiece, and increases adaptability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the threaded rod in this utility model;

[0021] Figure 5 This is a schematic diagram of the adjustment platform in this utility model.

[0022] In the diagram: 1. Support; 2. Welding table; 3. Stabilizing and positioning mechanism; 301. Slide table; 302. Two-way stud; 303. Carriage; 304. Limiting tooth; 305. Slide box; 306. Adjusting block; 307. Clamping tooth; 308. Adjusting plate; 309. Threaded rod; 310. Spreading spring; 4. Clamping mechanism; 401. Adjusting cylinder; 402. Slide plate; 403. Threaded stud; 404. Nut; 405. Clamping platform; 406. Slider; 407. Adjusting platform; 408. Clamping jaw; 409. Screw; 410. Support cylinder; 411. Adjusting cap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0025] This mechanism is used for quickly adjusting the position of the workpiece. It solves the problems of insufficient adjustment speed and instability in existing devices. (See also...) Figure 1-5 This utility model provides a technical solution: a welding processing positioning fixture, including a support 1 and a welding table 2 fixedly connected to the upper side of the support 1. A stabilizing positioning mechanism 3 and a clamping mechanism 4 are provided on the upper side of the welding table 2, and the stabilizing positioning mechanism 3 is provided on the lower side of the clamping mechanism 4.

[0026] The stabilizing and positioning mechanism 3 includes a slide table 301, which is slidably connected inside the welding table 2. A bidirectional stud 302 is rotatably connected inside the welding table 2 and threadedly connected to the slide table 301. A slide frame 303 is fixedly connected to the upper surface of the slide table 301. A limit tooth 304 is fixedly connected inside the slide frame 303. A slide box 305 is slidably connected inside the slide frame 303. An adjusting block 306 is slidably connected inside the slide box 305. The adjusting block 306 is slidably connected inside the slide box 305. A locking tooth 307 is located on one side of 306, and the locking tooth 307 engages with the limiting tooth 304. An adjusting plate 308 is fixedly connected to the lower side of the slide box 305. The adjusting plate 308 is slidably connected inside the slide frame 303. A threaded rod 309 is threadedly connected inside the adjusting plate 308. The threaded rod 309 is slidably connected to the slide frame 303 and rotatably connected to the adjusting block 306. A spreading spring 310 is sleeved on the outer wall of the threaded rod 309. The spreading spring 310 is fixedly connected to the adjusting plate 308 and the adjusting block 306 respectively.

[0027] Furthermore, the carriage 303 has multiple sliding grooves inside, and the slide box 305 has a slot with a convex cross-section inside.

[0028] Furthermore, the adjusting block 306 has a T-shaped cross-section, and a square protrusion structure is fixedly connected to one side of the adjusting block 306 and slidably connected to the inner wall of the slide 303.

[0029] Furthermore, one end of the threaded rod 309 is provided with a threaded structure of the same length as the thickness of the adjusting plate 308. Example

[0030] This mechanism is used to clamp workpieces. It solves the problem that existing devices are mostly used in conjunction with other devices, thus reducing their applicability. Please refer to [link / reference]. Figure 1-5 Furthermore, in conjunction with Embodiment 1, the clamping mechanism 4 includes an adjusting cylinder 401, which is fixedly connected to the upper end of the slide box 305. A slide plate 402 is slidably connected inside the adjusting cylinder 401. A threaded post 403 is fixedly connected to the upper surface of the slide plate 402. A nut 404 is threadedly connected to the outer wall of the threaded post 403, and the nut 404 is rotatably connected to the upper end of the adjusting cylinder 401. A clamping platform 405 is fixedly connected to the upper end of the threaded post 403, and a slidably connected [missing information] is slidably connected inside the clamping platform 405. The slider 406 has an adjusting platform 407 slidably connected inside it. The adjusting platform 407 is slidably connected inside the clamping platform 405. A clamping jaw 408 is fixedly connected to one side of the slider 406. A screw 409 is fixedly connected to one side of the adjusting platform 407. A support cylinder 410 is fixedly connected to one side of the clamping platform 405. The screw 409 is slidably connected inside the support cylinder 410. An adjusting cap 411 is rotatably connected to one end of the support cylinder 410. The adjusting cap 411 is threadedly connected to the screw 409.

[0031] Furthermore, the slider 406 has a groove with a convex cross-section inside, and the inner side of the adjusting platform 407 is fixedly connected to a protrusion that fits into the groove inside the slider 406.

[0032] Furthermore, the slider 406 has a cross-shaped cross section.

[0033] In actual operation, when this device is used, the user places the workpiece inside the clamp 408, and then the user rotates the adjusting cap 411 to make the screw 409 slide to clamp the workpiece. Then the user turns the threaded rod 309 to disengage the threaded rod 309 from the adjusting plate 308, and opens the spring 310 to pull the adjusting block 306 to disengage the limiting tooth 304 from the locking tooth 307. The user pushes the clamp 405 to the appropriate position and tightens the threaded rod 309. The user can adjust the height of the clamp 405 by turning the nut 404. The user can adjust the distance between the clamps 405 by using the bidirectional stud 302 to facilitate contact between the workpieces at different levels and heights for welding.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A welding process positioning tool, comprising a support (1) and a welding table (2) fixedly connected to the upper side of the support (1), characterized in that: The welding table (2) upper side is provided with a stable positioning mechanism (3) and clamping mechanism (4), the stable positioning mechanism (3) is arranged below the clamping mechanism (4); The stable positioning mechanism (3) includes a sliding table (301), the sliding table (301) is slidably connected inside the welding table (2), the welding table (2) is rotatably connected with a two-way stud (302), the two-way stud (302) is threadedly connected with the sliding table (301), the upper surface of the sliding table (301) is fixedly connected with a sliding frame (303), the sliding frame (303) is fixedly connected with a limiting tooth (304) inside, the sliding frame (303) is slidably connected with a sliding box (305), the sliding box (305) is slidably connected with an adjusting block (306) inside, the adjusting block (306) is slidably connected inside the sliding box (305), the adjusting block (306) is provided with a pawl (307) on one side, the pawl (307) is connected with the limiting tooth (304), the lower side of the sliding box (305) is fixedly connected with an adjusting plate (308), the adjusting plate (308) is slidably connected inside the sliding frame (303), the adjusting plate (308) is threadedly connected with a threaded rod (309) inside, the threaded rod (309) is slidably connected with the sliding frame (303), the threaded rod (309) is rotatably connected with the adjusting block (306), the threaded rod (309) is provided with a strutting spring (310) on the outer wall, and the strutting spring (310) is fixedly connected with the adjusting plate (308) and the adjusting block (306) respectively.

2. The welding fixture of claim 1, wherein: The sliding frame (303) is provided with a plurality of sliding grooves inside, and the sliding box (305) is provided with a notch with a convex cross section inside.

3. The welding fixture of claim 1, wherein: The adjusting block (306) is provided with a T-shaped cross section, and a square protruding block structure is fixedly connected with the inner wall of the sliding frame (303) on one side of the adjusting block (306).

4. The welding fixture of claim 1, wherein: One end of the threaded rod (309) is provided with a threaded structure with a length equal to the thickness of the adjusting plate (308).

5. The welding fixture of claim 1, wherein: The clamping mechanism (4) includes an adjusting cylinder (401) fixedly connected to the upper end of the sliding box (305), a sliding disc (402) slidably connected inside the adjusting cylinder (401), a threaded column (403) fixedly connected to the upper surface of the sliding disc (402), a nut (404) threadedly connected to the outer wall of the threaded column (403), the nut (404) being rotatably connected to the upper end of the adjusting cylinder (401), a clamping table (405) fixedly connected to the upper end of the threaded column (403), a sliding block (406) slidably connected inside the clamping table (405), an adjusting table (407) slidably connected inside the clamping table (405), a clamping jaw (408) fixedly connected to one side of the sliding block (406), a screw rod (409) fixedly connected to one side of the adjusting table (407), a supporting cylinder (410) fixedly connected to one side of the clamping table (405), the screw rod (409) being slidably connected inside the supporting cylinder (410), and an adjusting cap (411) rotatably connected to one end of the supporting cylinder (410), the adjusting cap (411) being threadedly connected to the screw rod (409).

6. A welding fixture according to claim 5, wherein: The sliding block (406) is provided with a groove with a convex cross section inside, and the adjusting table (407) is fixedly connected with a convex block on the inner side and arranged in abutment with the groove inside the sliding block (406).

7. The welding fixture of claim 5, wherein: The sliding block (406) is provided with a cross-shaped cross section.