Fine positioning welding tool clamp

Abstract

The utility model discloses a precise positioning welding tool clamp, and relates to the technical field of tool clamps, the precise positioning welding tool clamp comprises a base, end clamping mechanisms are arranged at the two ends of the base, side clamping mechanisms are arranged on the side portion of the base, and the side clamping mechanisms comprise the left clamping mechanism and the right clamping mechanism; by arranging the end clamping mechanism and the side clamping mechanism, stable clamping of a steel plate can be achieved, by arranging a detection sensor, the placed steel plate can be detected, whether the placing position of the steel plate is accurate or not can be detected, improvement of the positioning position precision of the steel plate is facilitated, and by arranging a plurality of positioning pins, the positioning accuracy of the steel plate is improved. The steel plate can be accurately positioned, and displacement is prevented from affecting the positioning precision. Therefore, the problems existing in the steel plate welding process are solved, the steel plate is conveniently positioned, the percent of pass of parts is increased, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of tooling and fixture technology, and in particular to a precision positioning welding tooling and fixture. Background Technology

[0002] Steel plates are flat steel products made by pouring molten steel, cooling and pressing them. They are flat and rectangular, and can be directly rolled or cut from wide steel strips. They have a wide range of applications.

[0003] In the steel plate welding process, the steel plate is prone to bending due to gravity, making positioning difficult. Without the clamping of positioning fixtures, welding is prone to bending thermal deformation, which not only increases the welding difficulty but also affects the manufacturing accuracy, resulting in a lower qualification rate of manufactured parts and increased production costs. Utility Model Content

[0004] To address the aforementioned problems, achieve convenient positioning of steel plates, improve the qualification rate of parts, and reduce production costs, this application provides a precision positioning welding fixture.

[0005] The precision positioning welding fixture provided in this application adopts the following technical solution.

[0006] A precision positioning welding fixture includes a base, with end clamping mechanisms at both ends of the base and a side clamping mechanism on the side of the base, the side clamping mechanism being divided into a left clamping mechanism and a right clamping mechanism.

[0007] The end clamping mechanism includes an end clamping frame, an end positioning pin, and an end clamping rod hinged to the end clamping frame. The end clamping rod is driven by an end power element provided on the end clamping frame to clamp the steel plate on the end clamping frame.

[0008] The left clamping mechanism includes a left support rod, on which a left positioning pin and a left detection sensor are provided. A left clamping rod is hinged to the left support rod. The left clamping rod is driven by a left power element provided on the left support rod to clamp the steel plate on the left support rod.

[0009] The right clamping mechanism includes a right clamping frame, on which a right positioning pin and a right detection sensor are provided. A right clamping rod is hinged to the right clamping frame, and the right clamping rod is driven by a right power element provided on the right clamping frame to clamp the steel plate onto the right clamping frame.

[0010] By adopting the above technical solution, the steel plate can be stably clamped by the end clamping mechanism and the side clamping mechanism. The detection sensor can detect the placed steel plate and whether the steel plate is placed accurately, which helps to improve the positioning accuracy of the steel plate. Furthermore, the setting of multiple positioning pins can achieve accurate positioning of the steel plate and prevent displacement that would affect the positioning accuracy.

[0011] Optionally, the end clamping frame is provided with an end support rod for supporting the steel plate, and end pads for supporting the steel plate are provided on both sides of the middle section of the end support rod, and the end positioning pin is provided on the end support rod.

[0012] By adopting the above technical solution, the steel plate placed on the end support rod can be supported by the end pad, and the end positioning pin can be matched with the hole on the steel plate to achieve the position positioning of the steel plate.

[0013] Optionally, end clamping blocks corresponding to end pads are provided on both sides of the end of the end clamping rod.

[0014] By adopting the above technical solution, the steel plate is clamped by setting the pressure block at the upper end of the end clamping rod, which corresponds to the end pad block.

[0015] Optionally, the left support rod is provided with a left support rod for supporting the steel plate, and left pads are provided on both the first and last ends of the left support rod. Left positioning pins are provided on both the first and last ends of the left support rod, and the left detection sensor is provided on the side of the left support rod.

[0016] By adopting the above technical solution, the left pad can support the steel plate, the left detection sensor can detect whether the steel plate is placed in place, and the left positioning pin can cooperate with the hole on the steel plate to realize the positioning of the steel plate, which helps to improve the positioning accuracy.

[0017] Optionally, the first and last ends of the left clamping rod are provided with left pressure blocks corresponding to the left pad block.

[0018] By adopting the above technical solution, the steel plate is clamped by setting the left pressure block on the left clamping rod, which corresponds to the left pad block.

[0019] Optionally, the right clamping frame is provided with a right support rod for supporting the steel plate. The right support rod has right pads on both sides of its first end and at its last end. The right support rod has right positioning pins on both sides of its first end and at its last end. The right support rod has right detection sensors on both sides of its first end.

[0020] By adopting the above technical solution, the right pad can support the steel plate, the right detection sensor can detect whether the steel plate is placed in place, and the right positioning pin can cooperate with the hole on the steel plate to achieve the positioning of the steel plate, which helps to improve the positioning accuracy.

[0021] Optionally, the right clamping rod is provided with right pressure blocks corresponding to the right pad block on both sides of the first end and the last end.

[0022] By adopting the above technical solution, the steel plate is clamped by setting the right pressure block on the right clamping rod, which corresponds to the right pad block.

[0023] Optionally, each end of the base is provided with an end clamping mechanism for positioning and clamping the main steel plate. Two left clamping mechanisms are provided on the left side of the base for positioning and clamping the left steel plate and the main steel plate. Two right clamping mechanisms are provided on the right side of the base for positioning and clamping the right steel plate and the main steel plate.

[0024] By adopting the above technical solution, the two ends of the main steel plate can be clamped and positioned by the end clamping mechanism at both ends; by setting the left clamping mechanism, the left steel plate can be positioned and clamped with the main steel plate, thus achieving the positioning between the left steel plate and the main steel plate; by setting the right clamping mechanism, the right steel plate can be positioned and clamped with the main steel plate, thus achieving the positioning between the right steel plate and the main steel plate.

[0025] Optionally, an auxiliary positioning mechanism is provided on the left side of the base. The auxiliary positioning mechanism includes a slide block, which is slidably mounted on the base by a sliding power element. A lifting cylinder is fixed on the slide block by a lifting cylinder seat. A lifting block is provided at the end of the extension rod of the lifting cylinder. The lifting block is located on the side of the left support rod. An auxiliary positioning pin and an auxiliary detection sensor are provided on the lifting block.

[0026] By adopting the above technical solution, the sliding power element drives the slide block to slide on the base, realizing the movement of the lifting block, moving it closer to or away from the left support rod. When the lifting block is in a position close to the left support rod, it can replace a nearby left clamping mechanism to adapt to different steel plate positioning. By setting the auxiliary detection sensor, the steel plate placed on the left pad can be detected to check whether the steel plate is placed accurately. By setting the auxiliary positioning pin, it can cooperate with the hole of the steel plate placed on the left pad, and the pin hole cooperation realizes the positioning of the steel plate.

[0027] Optionally, a central clamping mechanism is provided on the right side of the base. The central clamping mechanism includes a central clamping frame, a central support rod on the central clamping frame, a central pad and a central detection sensor at the end of the central support rod, a central clamping rod hinged on the central clamping frame, and a central pressure block corresponding to the central pad at the end of the central clamping rod. The central clamping rod is driven to swing by a central power element on the central clamping frame, and the central pressure block clamps the main steel plate onto the central pad.

[0028] By adopting the above technical solution, the main steel plate is positioned and clamped from the middle position through the setting of the intermediate clamping mechanism. In conjunction with the end clamping mechanism and the side clamping mechanism, the clamping stability of the main steel plate is improved and the positioning accuracy is increased.

[0029] In summary, this application includes at least the following beneficial effects:

[0030] 1. This application achieves stable clamping of the steel plate by setting up end clamping mechanism and side clamping mechanism. By setting up detection sensor, the placed steel plate can be detected and whether the steel plate is placed accurately, which helps to improve the positioning accuracy of the steel plate. Furthermore, by setting up multiple positioning pins, the steel plate can be accurately positioned to prevent displacement and improve positioning accuracy.

[0031] 2. The sliding power element of this application drives the slide block to slide on the base, realizing the movement of the lifting block, moving it closer to or away from the left support rod. When the lifting block is in a position close to the left support rod, it can replace a nearby left clamping mechanism to adapt to different steel plate positioning. By setting the auxiliary detection sensor, the steel plate placed on the left pad can be detected to check whether the steel plate is placed accurately. By setting the auxiliary positioning pin, it can cooperate with the hole of the steel plate placed on the left pad, and the pin hole cooperation realizes the positioning of the steel plate.

[0032] 3. This application uses an intermediate clamping mechanism to position and clamp the main steel plate from the middle position. In conjunction with the end clamping mechanism and the side clamping mechanism, it helps to improve the clamping stability of the main steel plate and improve the positioning accuracy. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0034] Figure 1This is a schematic diagram of the structure of a precision positioning welding fixture (excluding auxiliary positioning mechanism).

[0035] Figure 2 yes Figure 1 Schematic diagram of the positioning and clamping steel plate structure.

[0036] Figure 3 This is a schematic diagram of the structure of a precision positioning welding fixture (including an auxiliary positioning mechanism).

[0037] Figure 4 yes Figure 3 Schematic diagram of the positioning and clamping steel plate structure.

[0038] Figure 5 This is a schematic diagram of the end clamping mechanism.

[0039] Figure 6 This is a schematic diagram of the left clamping mechanism.

[0040] Figure 7 This is a schematic diagram of the right clamping mechanism.

[0041] Figure 8 This is a schematic diagram of the right clamping mechanism from another perspective.

[0042] Figure 9 This is a schematic diagram of the intermediate clamping mechanism.

[0043] Figure 10 This is a schematic diagram of the auxiliary positioning mechanism.

[0044] Figure 11 This is a schematic diagram of a steel plate workpiece structure.

[0045] Figure 12 This is a schematic diagram of another type of steel plate workpiece structure.

[0046] Explanation of reference numerals in the attached drawings: 1. Steel plate workpiece; 101. Main steel plate; 102. Left side steel plate; 103. Right side steel plate; 2. Base; 3. End clamping mechanism; 301. End clamping frame; 302. End support rod; 303. End pad; 304. End positioning pin; 305. End clamping rod; 306. End pressure block; 307. End hinge shaft; 308. End cylinder; 4. Left clamping mechanism; 401. Left support rod; 402. Left support rod; 403. Left pad; 404. Left positioning pin; 405. Left detection sensor; 406. Left clamping rod; 407. Left pressure block; 408. Left hinge shaft; 409. Left cylinder; 5. Right clamping mechanism; 501. Right clamping frame; 502. Right support rod; 303. End support rod; 404. End positioning pin; 305. End clamping rod; 306. End pressure block; 307. End hinge shaft; 408. End cylinder; 409. Left cylinder; 5. Right clamping mechanism; 501. Right clamping frame; 502. End support rod; 303. End support rod; 404. End positioning pin; 405. Left detection sensor; 406. Left clamping rod; 407. Left pressure block; 408. Left hinge shaft; 409. Left cylinder; 5. Right clamping mechanism; 501. Right clamping frame; 502. Right support rod; 303. End support rod; 404. End positioning pin; 405. End clamping rod; 406. Left clamping rod; 407. Left support rod; 408. Left support rod; 409. Left cylinder; 5. Right clamping mechanism; 501. Right clamping frame 503. Support rod; 504. Right pad; 505. Right positioning pin; 506. Right detection sensor; 507. Right clamping rod; 508. Right pressure block; 509. Right hinge shaft; 6. Intermediate clamping mechanism; 601. Intermediate clamping frame; 602. Intermediate support rod; 603. Intermediate pad; 604. Intermediate detection sensor; 605. Intermediate clamping rod; 606. Intermediate pressure block; 607. Intermediate hinge shaft; 608. Intermediate cylinder; 7. Auxiliary positioning mechanism; 701. Slide seat; 702. Slide rail; 703. Sliding power element; 704. Lifting cylinder; 705. Lifting cylinder seat; 706. Lifting block; 707. Auxiliary positioning pin; 708. Auxiliary detection sensor. Detailed Implementation

[0047] 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.

[0048] The following is in conjunction with the appendix Figures 1 to 12 This application will be described in further detail.

[0049] This application discloses a precision positioning welding fixture.

[0050] Reference Figures 11 to 12 A steel plate workpiece 1 is formed by welding multiple steel plates, including a main steel plate 101, a left steel plate 102, and a right steel plate 103. Holes are provided on the main steel plate 101, the left steel plate 102, and the right steel plate 103 for easy positioning. The tooling fixture of this application is used to position and clamp the two left steel plates 102 and the two right steel plates 103 to the main steel plate 101. The left steel plate 102 is trapezoidal or triangular, and the right steel plate 103 is circular. A steel plate workpiece 1 is described as follows: Figure 11 The two left-side steel plates 102 are trapezoidal, and the other steel plate workpiece 1 is as follows. Figure 12 The steel plate 102 on the left is trapezoidal in shape and triangular in shape. The tooling fixtures of this application are not limited to the above-mentioned steel plates, nor are they only applicable to steel plates. They are also applicable to other plate workpieces.

[0051] Reference Figures 1 to 12 A precision positioning welding fixture includes a base 2 and an end clamping mechanism 3, a side clamping mechanism, a middle clamping mechanism 6 and an auxiliary positioning mechanism 7 fixed on the base 2. The side clamping mechanism is divided into a left clamping mechanism 4 and a right clamping mechanism 5.

[0052] Base 2 serves as the base for this precision positioning welding fixture, which helps improve the installation stability of each mechanism and ensures the assembly accuracy of the foundation.

[0053] The base 2 is provided with an end clamping mechanism 3 at both ends, which supports and positions the two ends of the main steel plate 101.

[0054] The end clamping mechanism 3 includes an end clamping frame 301 fixedly connected to the base 2, and an end support rod 302 connected to the end clamping frame 301 for supporting the main steel plate 101. End pads 303 for supporting the main steel plate 101 are provided on both sides of the middle section of the end support rod 302, and end positioning pins 304 are provided at the ends of the end support rod 302. The end pads 303 provide support for the main steel plate 101 placed on the end support rod 302, and the end positioning pins 304 engage with holes on the main steel plate 101 to achieve the positioning of the main steel plate 101. An end clamping rod 305 is hinged to the end clamping frame 301. The end clamping rod 305 is driven by an end power element set on the end clamping frame 301 to clamp the main steel plate 101 on the end clamping frame 301. End pressure blocks 306 corresponding to end pads 303 are set on both sides of the end of the end clamping rod 305. By setting the end pressure blocks 306 on the end clamping rod 305, corresponding to the end pads 303, the main steel plate 101 is clamped.

[0055] The end power element includes an end hinge shaft 307 mounted on an end clamping frame 301, an end clamping rod 305 coaxially fixed to the end hinge shaft 307 and using the end hinge shaft 307 as the hinge axis, an end gear coaxially fixed on the end hinge shaft 307, and an end cylinder 308 fixedly mounted on the end clamping frame 301. An end rack that meshes with the end gear is fixedly mounted on the telescopic rod of the end cylinder 308. The operation of the end cylinder 308 drives the end gear to rotate, which in turn drives the end clamping rod 305 to swing, causing the end pressure block 306 to clamp or release the main steel plate 101.

[0056] Left clamping mechanism 4: Two left clamping mechanisms 4 are provided on the left side of the base 2. The two left clamping mechanisms 4 are used to position and clamp the left steel plate 102 of the two trapezoids and the main steel plate 101 respectively.

[0057] The left clamping mechanism 4 includes a left support rod 401 fixedly connected to the base 2, a left support rod 402 fixedly connected to the left support rod 401, left pads 403 fixedly installed on both ends of the left support rod 402, left positioning pins 404 fixedly installed on both ends of the left support rod 402, and a left detection sensor 405 installed on the side of the left support rod 402. The left pads 403 provide support for the main steel plate 101 and the left steel plate 102. The left detection sensor 405 detects whether the main steel plate 101 and the left steel plate 102 are in place. The left positioning pins 404 engage with holes on the main steel plate 101 and the left steel plate 102, achieving accurate positioning of the main steel plate 101 and the left steel plate 102. A left clamping rod 406 is hinged to the left support rod 401. The left clamping rod 406 is driven by a left power element set on the left support rod 401 to clamp the main steel plate 101 and the left steel plate 102 on the left support rod 401. The first and last ends of the left clamping rod 406 are provided with left pressure blocks 407 corresponding to the left pad block 403. By setting the left pressure blocks 407 on the left clamping rod 406, corresponding to the left pad block 403, the main steel plate 101 and the left steel plate 102 are clamped.

[0058] The left power element includes a left hinge shaft 408 mounted on the left support rod 401, a left clamping rod 406 coaxially fixed to the left hinge shaft 408, with the left hinge shaft 408 serving as the hinge axis, a left gear coaxially fixed on the left hinge shaft 408, a left cylinder 409 fixedly mounted on the left support rod 401, and a left rack meshing with the left gear fixedly mounted on the telescopic rod of the left cylinder 409. The operation of the left cylinder 409 drives the left gear to rotate, which in turn drives the left clamping rod 406 to swing, causing the left pressure block 407 to clamp or release the main steel plate 101 and the left side steel plate 102.

[0059] Right clamping mechanism 5: Two right clamping mechanisms 5 are provided on the right side of the base 2. The two right clamping mechanisms 5 are used to position and clamp the two right side steel plates 103 and the main steel plate 101 respectively.

[0060] The right clamping mechanism 5 includes a right clamping frame 501 fixedly connected to the base 2. A right support rod 502 is fixedly connected to the right clamping frame 501. Right pads 503 are fixedly provided on both sides of the first end and the last end of the right support rod 502. Right positioning pins 504 are fixedly provided on both ends of the first end of the right support rod 502. Right detection sensors 505 are provided on both sides of the first end of the right support rod 502. The right pads 503 provide support for the main steel plate 101 and the right side steel plate 103. The right detection sensors 505 can detect whether the main steel plate 101 and the right side steel plate 103 are in place. The right positioning pins 504 can engage with the holes on the main steel plate 101 and the right side steel plate 103. The engagement of the pins and holes enables the positioning of the main steel plate 101 and the right side steel plate 103, which helps to improve the positioning accuracy. A right clamping rod 506 is hinged to the right clamping frame 501. The right clamping rod 506 is driven by a right power element fixedly installed on the right clamping frame 501. Right pressure blocks 507 corresponding to the right pad block 503 are fixedly installed on both sides of the first end and the end of the right clamping rod 506. The main steel plate 101 and the right side steel plate 103 are clamped on the right clamping frame 501. The right pressure block 507 on the right clamping rod 506 is set to correspond to the right pad block 503, thus clamping the main steel plate 101 and the right side steel plate 103.

[0061] The right power element includes a right hinge shaft 508 mounted on the right clamping frame 501, a right clamping rod 506 coaxially fixed to the right hinge shaft 508, with the right hinge shaft 508 serving as the hinge axis, a right gear coaxially fixed on the right hinge shaft 508, and a right cylinder 509 fixedly mounted on the right clamping frame 501. A right rack meshing with the right gear is fixedly mounted on the telescopic rod of the right cylinder 509. The operation of the right cylinder 509 drives the right gear to rotate, which in turn drives the right clamping rod 506 to swing, causing the right pressure block 507 to clamp or release the main steel plate 101 and the right side steel plate 103.

[0062] By setting up the end clamping mechanism 3 and the side clamping mechanism, multiple steel plates can be stably clamped. By setting up the detection sensor, different steel plates that have been placed can be detected, and the accuracy of the steel plate placement position can be detected, which helps to improve the positioning accuracy of the steel plates. Furthermore, by setting up multiple positioning pins, the steel plates can be accurately positioned to prevent displacement and affect the positioning accuracy.

[0063] The intermediate clamping mechanism 6 is located on the right side of the base 2, between the two clamping mechanisms, and is used to position and clamp the main steel plate 101 from the middle.

[0064] The intermediate clamping mechanism 6 includes an intermediate clamping frame 601 fixedly connected to the base 2. An intermediate support rod 602 is fixedly connected to the intermediate clamping frame 601. An intermediate pad 603 and an intermediate detection sensor 604 are provided at the end of the intermediate support rod 602. An intermediate clamping rod 605 is hinged to the intermediate clamping frame 601. An intermediate pressure block 606 corresponding to the intermediate pad 603 is provided at the end of the intermediate clamping rod 605. The intermediate clamping rod 605 is driven to swing by an intermediate power element provided on the intermediate clamping frame 601. The intermediate pressure block 606 clamps the main steel plate 101 onto the intermediate pad 603. Through the setting of the intermediate clamping mechanism 6, the main steel plate 101 is positioned and clamped from the middle position. In cooperation with the end clamping mechanism 3 and the side clamping mechanism, the clamping stability of the main steel plate 101 is improved and the positioning accuracy is improved.

[0065] The intermediate power component includes an intermediate hinge shaft 607 mounted on an intermediate clamping frame 601, an intermediate clamping rod 605 coaxially fixed to the intermediate hinge shaft 607, with the intermediate hinge shaft 607 serving as the hinge axis, an intermediate gear coaxially fixed on the intermediate hinge shaft 607, and an intermediate cylinder 608 fixedly mounted on the intermediate clamping frame 601. An intermediate rack meshing with the intermediate gear is fixedly mounted on the telescopic rod of the intermediate cylinder 608. The operation of the intermediate cylinder 608 drives the intermediate gear to rotate, which in turn drives the intermediate clamping rod 605 to swing, causing the intermediate pressure block 606 to clamp or release the main steel plate 101.

[0066] Auxiliary positioning mechanism 7 is provided on the left side of the base 2, which can be used to position and clamp the left steel plate 102 of the triangle with the main steel plate 101.

[0067] The auxiliary positioning mechanism 7 includes a slide block 701, a sliding power element 703, a lifting cylinder 704, a lifting block 706, an auxiliary positioning pin 707, and an auxiliary detection sensor 708. The slide block 701 is mounted on the base 2 in cooperation with the slider rail 702. The sliding power element 703 is fixed on the base 2. The sliding power element 703 can be a cylinder. The slide block 701 is slidably mounted on the base 2 by the sliding power element 703. The lifting cylinder 704 is fixed on the slide block 701 by the lifting cylinder seat 705. The lifting block 706 is fixedly mounted on the end of the extension rod of the lifting cylinder 704. The lifting block 706 is located on the side of a left support rod 401. The auxiliary positioning pin 707 and the auxiliary detection sensor 708 are mounted on the lifting block 706.

[0068] The sliding power element 703 drives the slide block 701 to slide on the base 2, realizing the movement of the lifting block 706, which moves closer to or away from the left support rod 401. When the lifting block 706 is in a position close to the left support rod 401, it can replace the left positioning pin 404 and the left detection sensor 405 in a nearby left clamping mechanism 4, adapting to different positioning of the left steel plate 102, that is, it can be adapted to the triangular left steel plate 102. Through the setting of the auxiliary detection sensor 708, the triangular left steel plate 102 placed on the left pad 403 can be detected to detect whether the placement position of the left steel plate 102 is accurate. Through the setting of the auxiliary positioning pin 707, it can cooperate with the hole of the left steel plate 102 placed on the left pad 403, and the pin hole cooperation realizes the positioning of the left steel plate 102.

[0069] When it is necessary to weld another type of steel plate workpiece 1 (such as...) Figure 12 When a trapezoidal left steel plate 102 is replaced with a triangular left steel plate 102 and welded to the main steel plate 101, the sliding power element 703 drives the slide block 701 to slide, causing the lifting block 706 to move to the bottom of the triangular left steel plate 102. The lifting block 706 is then lifted by the lifting cylinder 704. After the main steel plate 101 is placed, the triangular left steel plate 102 is placed on the left pad block 403. At the same time, the hole on the triangular left steel plate 102 mates with the hole shaft of the auxiliary positioning pin 707, and the auxiliary detection sensor 708 detects whether the triangular left steel plate 102 is in place. After the triangular left steel plate 102 is placed, the left pressure block 407 presses down to press the left steel plate 102 tightly, thus achieving the positioning and clamping of the triangular left steel plate 102.

[0070] In the description of this utility model, it should be understood that the terms "both ends," "both sides," "end," "left side," "first end," "last end," "right side," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limitations on this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the term "connection" should be interpreted broadly. For example, it can refer to a mechanical connection or an electrical connection, or the internal connection of two components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0071] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A precision positioning welding fixture, characterized in that, Includes a base, with end clamping mechanisms at both ends of the base and a side clamping mechanism on the side of the base, the side clamping mechanism being divided into a left clamping mechanism and a right clamping mechanism; The end clamping mechanism includes an end clamping frame, an end positioning pin, and an end clamping rod hinged to the end clamping frame. The end clamping rod is driven by an end power element provided on the end clamping frame to clamp the steel plate on the end clamping frame. The left clamping mechanism includes a left support rod, on which a left positioning pin and a left detection sensor are provided. A left clamping rod is hinged to the left support rod. The left clamping rod is driven by a left power element provided on the left support rod to clamp the steel plate on the left support rod. The right clamping mechanism includes a right clamping frame, on which a right positioning pin and a right detection sensor are provided. A right clamping rod is hinged to the right clamping frame, and the right clamping rod is driven by a right power element provided on the right clamping frame to clamp the steel plate onto the right clamping frame.

2. The precision positioning welding fixture according to claim 1, characterized in that, The end clamping frame is provided with an end support rod for supporting the steel plate. Both sides of the middle section of the end support rod are provided with end pads for supporting the steel plate. The end positioning pin is located at the end of the end support rod.

3. The precision positioning welding fixture according to claim 2, characterized in that, The end clamping rod has end pressure blocks on both sides of its end, corresponding to the end pads.

4. The precision positioning welding fixture according to claim 1, characterized in that, The left support rod is provided with a left support rod for supporting the steel plate. The first and second ends of the left support rod are provided with left pads. The first and second ends of the left support rod are provided with left positioning pins. The left detection sensor is located on the side of the left support rod.

5. A precision positioning welding fixture according to claim 4, characterized in that, The left clamping rod has left pressure blocks corresponding to the left pad block on both its first and last ends.

6. The precision positioning welding fixture according to claim 1, characterized in that, The right clamping frame is equipped with a right support rod for supporting the steel plate. Right pads are provided on both sides of the first end and the second end of the right support rod. Right positioning pins are provided on both sides of the first end of the right support rod. Right detection sensors are provided on both sides of the first end of the right support rod.

7. A precision positioning welding fixture according to claim 6, characterized in that, The right clamping rod is provided with right pressure blocks corresponding to the right pad block on both sides of the first end and the last end.

8. A precision positioning welding fixture according to claim 1, characterized in that, Both ends of the base are provided with an end clamping mechanism for positioning and clamping the main steel plate. Two left clamping mechanisms are provided on the left side of the base for positioning and clamping the left steel plate and the main steel plate. Two right clamping mechanisms are provided on the right side of the base for positioning and clamping the right steel plate and the main steel plate.

9. A precision positioning welding fixture according to claim 4, characterized in that, An auxiliary positioning mechanism is provided on the left side of the base. The auxiliary positioning mechanism includes a slide block, which is slidably mounted on the base by a sliding power element. A lifting cylinder is fixed on the slide block by a lifting cylinder seat. A lifting block is provided at the end of the extension rod of the lifting cylinder. The lifting block is located on the side of the left support rod. An auxiliary positioning pin and an auxiliary detection sensor are provided on the lifting block.

10. A precision positioning welding fixture according to claim 1, characterized in that, A central clamping mechanism is provided on the right side of the base. The central clamping mechanism includes a central clamping frame, a central support rod on the central clamping frame, a central pad and a central detection sensor at the end of the central support rod, a central clamping rod hinged on the central clamping frame, and a central pressure block corresponding to the central pad at the end of the central clamping rod. The central clamping rod is driven to swing by a central power element on the central clamping frame, and the central pressure block clamps the main steel plate onto the central pad.

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