Welding positioning device

Abstract

The utility model discloses a welding positioning device, which relates to the technical field of welding and comprises a welding table, a positioning plate, a driving mechanism, an auxiliary positioning mechanism and a fixing component. The welding table is provided with a welding gun mounting seat and damping supporting legs; the positioning plate slides through an auxiliary frame, a positive and negative screw rod is installed in a top fixing frame, and the two ends are symmetrically connected with bearing seats with fixing columns. The driving mechanism drives the positive and negative lead screws to rotate through the rotating handle, so that the two bearing seats move synchronously, and continuous stepless adjustment of the distance between the balance rods is achieved. And the auxiliary positioning mechanism drives an auxiliary screw rod through a crank to drive a positioning plate to transversely and accurately position. The fixing assembly is matched with a conical groove 15 of the fixing column through a conical pressing head, a circular ring is pressed in the middle, and workpieces with different inner diameters are matched. The device integrates the stepless adjusting function and the self-adaptive clamping function, welding vibration is restrained in combination with the damping supporting feet, the positioning precision is high, operation is convenient and fast, and compatibility is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely is a kind of welding positioning device. BACKGROUND

[0002] In the production process of balance bar, the fixing in welding stage is particularly crucial. The traditional process usually adopts the mode of artificial spot welding and full welding, and the stability of workpiece needs to be ensured by relying on fixing device during full welding.

[0003] The welding positioning device of the publication number CN220498209U fixes workpiece by positioning table, symmetrically arranged positioning block and limiting strip. The device adopts positioning groove structure to realize the spacing adjustment of positioning block, so as to adapt to different lengths of the workpiece to be welded;

[0004] However, the adjustment mechanism has significant defects: the movement of positioning block is limited by the spacing of preset positioning groove, and can only be locked at discrete positions with integer multiples of groove spacing, resulting in low adjustment accuracy and inability to achieve continuous positioning. Therefore, we propose a welding positioning device. UTILITY MODEL CONTENTS

[0005] The utility model proposes a kind of welding positioning device in view of the deficiency in prior art.

[0006] To solve the above technical problems, the utility model solves the problem of low adjustment accuracy in prior art by the following technical scheme.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A kind of welding positioning device, comprising: welding table, welding gun mounting seat is provided on welding table;Positioning plate, it is positioned on welding table, its top is fixed with fixed frame, positive and negative screw rod is rotatably installed in fixed frame, two receiving seats are symmetrically connected with positive and negative screw rod at both ends, fixed column is provided on the top of receiving seat to embed the end ring of balance bar;Driving mechanism, including with the coaxial fixed handle of positive and negative screw rod, by rotating handle two receiving seats are synchronously moved towards or away from each other, realize continuous stepless adjustment;Auxiliary positioning mechanism, including the auxiliary frame that is horizontally arranged on welding table, auxiliary screw rod is rotatably arranged in auxiliary frame, positioning plate is threadedly connected with auxiliary screw rod, and the position of positioning plate is adjusted by the rotation of auxiliary screw rod driven by the handle fixed coaxially with auxiliary screw rod;Fixed component, it is arranged on receiving seat, for pressing the ring of balance bar.

[0009] Preferably, the fixed component includes a positioning screw rod penetrating through the top of the fixed column, and a pressure head is provided at the top end of the positioning screw rod. The height of the pressure head is adjusted by rotating the positioning screw rod to press the ring.

[0010] The bottom of the pressing head is preferably a conical surface, and the top of the fixing column is provided with a conical groove matched with the conical surface, so that the pressing head is centrally pressed when pressing the ring.

[0011] Preferably, the auxiliary frame is fixed to the surface of the welding table by bolts, and the auxiliary frame is internally provided with a sliding rod, and the positioning plate slides along the sliding rod.

[0012] Preferably, the top of the fixing column is provided with a threaded groove for threaded cooperation with the positioning screw.

[0013] Preferably, a locking nut is arranged between the auxiliary frame and the positioning plate, the locking nut is arranged outside the positioning plate, and the locking nut is locked on the sliding rod by rotating the locking nut to lock the adjusted position of the positioning plate.

[0014] Preferably, the surface of the welding table is provided with a scale line, and the positioning plate is externally fixed with a pointer, and the position of the positioning plate is indicated by the pointer and the scale line.

[0015] Preferably, the pressing head is designed to be replaceable, and different pressing heads with different taper are provided to adapt to rings with different inner diameters.

[0016] Preferably, the threaded segments of the forward and reverse screw rods are coated with a wear-resistant coating, and the two ends are fixedly provided with limit position buffer blocks.

[0017] Preferably, the bottom of the welding table is fixedly provided with a damping leg filled with damping material, which is used to absorb vibration during welding.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a design of the forward and reverse screw rod driving mechanism and the synchronously moving receiving seat, realizes the continuous stepless adjustment of the distance between the two ends of the balance lever, breaks through the limitation of traditional discrete positioning, and the operator can accurately control the position of the workpiece by only rotating the handle, so that the adjustment accuracy is obviously improved, the repeated adjustment time is reduced, and different size workpieces are adapted.

[0020] The matching structure of the conical surface pressing head and the conical groove of the fixing assembly is used, the end ring of the balance lever is automatically centered during the pressing process, the clamping force is uniformly applied to the center of the ring, the replaceable pressing head design can quickly adapt to rings with different inner diameters, welding defects caused by workpiece deviation are avoided, the compatibility of the device for multiple specifications of workpieces is expanded, and the cost of changing the type is reduced.

[0021] The damping leg filled with damping material is arranged at the bottom of the welding table, welding vibration energy is effectively absorbed, the influence of vibration on positioning accuracy is inhibited, the sliding rod and the locking nut of the auxiliary positioning mechanism are further locked to adjust the position, and external interference is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0024] Figure 2 It is a schematic diagram of the internal structure of the auxiliary frame of the present application.

[0025] Figure 3 It is a schematic diagram of the structure of the positioning plate part of the present application.

[0026] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present application.

[0027] Figure 5 It is a schematic diagram of the structure of the receiving seat of the present application.

[0028] Figure 6 It is Figure 1 It is an enlarged view of position A in FIG.

[0029] Figure number explanation: 1, welding table; 2, welding gun mounting seat; 3, positioning plate; 4, fixing frame; 5, forward and reverse screw rod; 6, receiving seat; 7, fixed column; 8, rotating handle; 9, auxiliary frame; 10, auxiliary screw; 11, rocking handle; 12, fixing assembly; 13, positioning screw; 14, pressure head; 15, conical groove; 16, sliding rod; 17, threaded groove; 18, locking nut; 19, scale line; 20, pointer; 21, buffer block; 22, shock absorbing foot. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the drawings. EMBODIMENT

[0031] Please refer to Figures 1-6 A welding positioning device, comprising: a welding table 1, the welding table 1 is provided with a welding gun mounting seat 2, which is used for fixing the welding gun and ensuring the stability of the gun head during the welding process; a positioning plate 3, which is arranged on the welding table 1 and is fixedly provided with a fixing frame 4 at the top, the fixing frame 4 is rotatably installed with a forward and reverse screw rod 5, two receiving seats 6 are symmetrically connected with the forward and reverse screw rod 5 at both ends through threads, and the receiving seat 6 is provided with a fixed column 7 at the top to be embedded into the end ring of the balance bar; a driving mechanism, comprising a rotating handle 8 fixed coaxially with the forward and reverse screw rod 5, when the rotating handle 8 is rotated, the forward and reverse threads of the forward and reverse screw rod 5 drive the two receiving seats 6 to move synchronously towards or away from each other, so that the continuous stepless adjustment of the end rings of the balance bar is realized, and the precision limitation of the traditional discrete positioning is overcome.

[0032] The auxiliary positioning mechanism comprises an auxiliary frame 9 horizontally arranged on the welding table 1, an auxiliary screw rod 10 rotatably arranged in the auxiliary frame 9, and a positioning plate 3 threadedly connected with the auxiliary screw rod 10 and driven to rotate by a crank 11 coaxially fixed with the auxiliary screw rod 10 to adjust the position of the positioning plate 3; the auxiliary screw rod 10 is driven to rotate by the crank 11 coaxially fixed with the auxiliary screw rod 10, thereby driving the positioning plate 3 to move transversely along the slide rod 16, and the overall position of the positioning plate 3 is accurately adjusted;

[0033] The fixing assembly 12 is arranged on the receiving seat 6, is embedded into the ring of the end portion of the balance bar through the fixing column 7, and completes the clamping and fixing of the workpiece in cooperation with the pressing structure. The cooperation of the mechanisms ensures the multi-dimensional accurate positioning and stable fixing of the workpiece during the welding process.

[0034] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings:

[0035] Please refer to Figures 1-6 The present application realizes continuous stepless adjustment of the distance between the two ends of the balance bar, breaks through the limitation of traditional discrete positioning, and significantly improves the adjustment accuracy while reducing the repeated adjustment time by only rotating the crank 8 to accurately control the position of the workpiece, thereby adapting to workpieces of different sizes.

[0036] The fixing assembly 12 comprises a positioning screw rod 13 penetrating through the top of the fixing column 7, and a pressing head 14 arranged at the top end of the positioning screw rod 13; the height of the pressing head 14 is adjusted by rotating the positioning screw rod 13 to press the ring, and the pressing head 14 can move up and down in the vertical direction by rotating the positioning screw rod 13, thereby adjusting the pressing force on the ring of the balance bar. This design not only simplifies the operation process, but also flexibly adjusts the pressing height according to the thickness of the workpiece or the size of the ring, thereby ensuring that the workpiece does not displace during the welding process. The direct contact surface of the pressing head 14 applies uniform pressure, thereby further improving the clamping reliability;

[0037] In addition, the bottom of the pressing head 14 is a conical surface, and the top of the fixing column 7 is provided with a conical groove 15 matched with the conical surface, so that the pressing head 14 is centrally pressed when the pressing head 14 is pressed against the ring; when the positioning screw rod 13 drives the pressing head 14 to descend, the cooperation of the conical surface and the conical groove 15 makes the pressing head 14 centrally located in the ring of the balance bar, thereby ensuring that the pressing force is uniformly applied to the center of the ring. This self-centering mechanism effectively avoids the problems of workpiece tilting or local stress concentration caused by the deviation of the pressing head 14, and is especially suitable for rings of different inner diameters, thereby significantly improving the clamping accuracy and adaptability;

[0038] Further, the top of the fixed column 7 is provided with a threaded groove 17 for threaded cooperation with the positioning screw 13, and the design of the threaded groove 17 enhances the guidance and stability of the positioning screw 13, preventing the screw from shaking radially during rotation. The precision of the threaded cooperation further improves the micro-control ability of the height adjustment of the pressure head 14, enabling the operator to finely adjust the pressing force according to actual needs.

[0039] At the same time, the auxiliary frame 9 is fixed to the surface of the welding table 1 by bolts, and the auxiliary frame 9 is internally provided with a sliding rod 16, and the positioning plate 3 slides along the sliding rod 16. The sliding rod 16 serves as a guide structure to ensure that the positioning plate 3 maintains linear motion during adjustment, avoiding positioning errors caused by deviation. The combination design of the auxiliary screw 10 and the sliding rod 16 realizes double control of the position of the positioning plate 3, which can be coarsely adjusted by the ratchet handle 11, and the degree of freedom can be limited by the sliding rod 16 to ensure the stability and accuracy of the adjustment process;

[0040] At the same time, the auxiliary frame 9 and the positioning plate 3 are provided with a locking nut 18, which is arranged outside the positioning plate 3. By rotating the locking nut 18, the locking nut 18 is locked against the sliding rod 16 to lock the adjusted position of the positioning plate 3. When the positioning plate 3 is adjusted to the target position by the auxiliary screw 10, rotating the locking nut 18 can make it tightly contact with the sliding rod 16, thereby locking the position of the positioning plate 3. This mechanical locking method effectively prevents position deviation caused by vibration or external force during welding, ensuring the long-term stability of the positioning plate 3 under complex working conditions;

[0041] Notably, the surface of the welding table 1 is provided with a scale line 19, and the outside of the positioning plate 3 is fixedly provided with a pointer 20. The position of the positioning plate 3 is indicated by the pointer 20 and the scale line 19, and the position of the positioning plate 3 is indicated by the scale line 19, so that the adjusted position of the positioning plate 3 is visualized.

[0042] In this technical solution, the pressure head 14 is designed to be replaceable, and different taper pressure heads 14 are provided to adapt to different inner diameters of the ring. Users can select the corresponding taper pressure head 14 according to the specifications of the workpiece, and realize the compatibility of multiple specifications of workpieces through quick replacement. This design expands the application range of the device, especially for scenarios where workpiece types are frequently switched in batch production, significantly improving production efficiency.

[0043] In this technical solution, the threaded segment surface of the positive and negative screw rod 5 is coated with a wear-resistant coating, and the two ends are fixedly provided with limit position buffer blocks 21. When the receiving seat 6 moves to the end of the stroke, the buffer blocks 21 absorb the impact force through elastic deformation, avoiding damage to the components caused by mechanical hard collision, while reducing operating noise and improving the safety and durability of the device.

[0044] In the technical solution, the welding table 1 is fixedly provided with a damping leg 22 at the bottom, the inside of the damping leg 22 is filled with damping material (not shown in the drawing), which is used to absorb vibration in the welding process, and the damping material absorbs vibration energy through viscoelastic deformation to reduce mechanical vibration transmitted to the welding table 1. This design effectively suppresses the influence of welding vibration on positioning accuracy, reduces noise pollution during equipment operation, and provides a more stable working environment for operators.

[0045] The use principle of the device is described below:

[0046] Firstly, the welding table 1 is stably placed in the working area through the damping leg 22 at the bottom, the table top is ensured to be horizontal, the knob 8 of the forward and reverse lead screw 5 is rotated to drive the forward and reverse lead screw 5 to rotate. Since the two ends of the lead screw are symmetrical forward and reverse threads, the two receiving seats 6 will move synchronously towards or away from each other, the spacing between the two receiving seats 6 is steplessly adjusted by continuously rotating the knob 8 until the spacing between the two receiving seats 6 is adapted to the balance bar to be welded, and then the two ends of the balance bar are respectively sleeved into the fixed columns 7 of the two receiving seats 6 on the positioning plate 3 to preliminarily place the workpiece;

[0047] Then, the positioning screw 13 at the top of the fixed column 7 is rotated to drive the pressure head 14 to move downward. The conical surface at the bottom of the pressure head 14 matches the conical groove 15 at the top of the fixed column 7, automatically centrally guides the two ends of the balance bar, so that the balance bar is horizontal, the positioning screw 13 is continuously tightened, and the pressure head 14 is pressed against the balance bar ring with uniform pressure to ensure that the ring is not loose in the vertical direction. If different inner diameter rings need to be adapted, the pressure head 14 with corresponding taper can be replaced;

[0048] After that, the locking nut 18 between the auxiliary frame 9 and the positioning plate 3 is loosened, the transverse locking of the positioning plate 3 is released, the handle 11 of the auxiliary screw 10 is rotated to drive the auxiliary screw 10 to rotate. Since the positioning plate 3 is threadedly connected with the auxiliary screw 10, the rotation of the screw will drive the positioning plate 3 to slide transversely along the slide rod 16 in the auxiliary frame 9, the relative position of the balance bar and the welding gun is observed through the scale line 19, the positioning plate 3 is moved to the target position, and then the locking nut 18 is tightened to fix the position of the positioning plate 3;

[0049] The welding gun is started to start the welding operation. During the welding process, the damping material in the damping leg 22 absorbs mechanical vibration to reduce the interference with the positioning accuracy;

[0050] After the welding is completed, the positioning screw 13 is reversely rotated to release the pressure head 14, and the balance bar is removed. If the workpiece specification needs to be switched, the above adjustment steps are repeated.

[0051] It will be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are merely illustrative and not restrictive of the present application. The object of the present application has been completely and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the embodiments of the present application can have any deformation or modification without departing from the principle.

Claims

1. A welding positioning device, characterized by, The utility model relates to a welding platform, which comprises a welding platform (1) provided with a welding gun mounting seat (2), a positioning plate (3) provided on the welding platform (1) and fixedly provided with a fixed frame (4) on the top, a positive and negative screw rod (5) rotatably installed in the fixed frame (4), two bearing seats (6) symmetrically connected with the two ends of the positive and negative screw rod (5) through threads, a fixed column (7) provided on the top of the bearing seat (6) to embed the end ring of the balance bar, a driving mechanism comprising a handlebar (8) coaxially fixed with the positive and negative screw rod (5), the two bearing seats (6) are synchronously moved towards or away from each other by rotating the handlebar (8), and continuous stepless adjustment is realized, an auxiliary positioning mechanism comprising an auxiliary frame (9) horizontally provided on the welding platform (1), an auxiliary screw rod (10) rotatably installed in the auxiliary frame (9), the positioning plate (3) being threadedly connected with the auxiliary screw rod (10) and the position of the positioning plate (3) being adjusted by driving the auxiliary screw rod (10) to rotate through a rocking handle (11) coaxially fixed with the auxiliary screw rod (10), a fixing assembly (12) provided on the bearing seat (6) and used for compressing the ring of the balance bar. The fixing assembly (12) comprises a positioning screw rod (13) penetrating through the top of the fixed column (7), the top end of the positioning screw rod (13) is provided with a pressure head (14), the height of the pressure head (14) is adjusted by rotating the positioning screw rod (13) to compress the ring. The bottom of the pressure head (14) is a conical surface, the top of the fixed column (7) is provided with a conical groove (15) matched with the conical surface, and the pressure head (14) is centrally compressed when the ring is pressed. The auxiliary frame (9) is fixed on the surface of the welding platform (1) through bolts, the inside of the auxiliary frame (9) is provided with a sliding rod (16), and the positioning plate (3) slides along the sliding rod (16). The top of the fixed column (7) is provided with a threaded groove (17) used for threadedly matching with the positioning screw rod (13). A locking nut (18) is arranged between the auxiliary frame (9) and the positioning plate (3), the locking nut (18) is arranged outside the positioning plate (3), the position of the positioning plate (3) after adjustment is locked by rotating the locking nut (18) to make the locking nut (18) abut against the sliding rod (16).

2. A welding positioning device according to claim 1, wherein: The surface of the welding platform (1) is provided with a scale line (19), a pointer (20) is fixedly arranged outside the positioning plate (3), and the position of the positioning plate (3) is indicated by the pointer (20) and the scale line (19).

3. A welding positioning device according to claim 2, wherein: The pressure head (14) is designed to be replaceable, different pressure heads (14) with different taper degrees are provided to adapt to rings with different inner diameters.

4. A welding positioning device according to claim 1, wherein: The thread surface of the positive and negative screw rod (5) is coated with a wear-resistant coating, and limit position buffer blocks (21) are fixedly arranged at the two ends.

5. A welding positioning device according to claim 2, wherein: A damping leg (22) is fixedly arranged at the bottom of the welding platform (1), the inside of the damping leg (22) is filled with damping material, and vibrations in the welding process are absorbed.

6. A welding positioning device according to claim 4, wherein: ​ 7. A welding positioning device as defined in claim 1, wherein: ​ 8. A welding positioning device according to claim 2, wherein: ​ 9. A welding positioning device as defined in claim 1, wherein: ​ 10. A welding positioning device according to claim 1, wherein: ​

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