Positioning and pressing device for assisting laser welding

Abstract

The utility model relates to a positioning and pressing device for assisting laser welding, and belongs to the field of laser welding. Comprising a positioning tray mechanism, a pressing mechanism and two pressing power mechanisms, the positioning tray mechanism is arranged below the pressing mechanism, a plurality of to-be-welded products are adaptively arranged on the positioning tray mechanism, and the two pressing power mechanisms are arranged at the two ends of the pressing mechanism in a one-to-one correspondence mode and drive the pressing mechanism to ascend and descend so as to press the to-be-welded products. According to the utility model, a plurality of to-be-welded products can be positioned at the same time, and each to-be-welded product can be compressed, so that no gap exists between the to-be-welded products, and the laser welding efficiency and the yield are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser welding field especially relates to a kind of positioning and compression device of auxiliary laser welding. BACKGROUND

[0002] At present, combined welding has single-point positioning compression welding and multi-point positioning compression welding, but the welding effect of single-point positioning compression welding is good, and the efficiency is very low;And multi-point positioning compression welding, although it can improve efficiency, but the compression structure cannot guarantee that every point can be compressed, which can easily lead to virtual welding in laser welding, frequent repair, scrap, causing waste of labor and materials, in order to improve the yield and efficiency of welding, a device for positioning and compression of multiple assemblies is needed. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a positioning and compression device for auxiliary laser welding to solve the above problems.

[0004] The technical solution for solving the above technical problem of the utility model is as follows: a positioning and compression device for auxiliary laser welding, comprising: a positioning tray mechanism, a compression mechanism and two lower compression power mechanisms;The positioning tray mechanism is arranged below the compression mechanism, and multiple products to be welded are adaptively arranged on the positioning tray mechanism, and the two lower compression power mechanisms are one-to-one correspondingly arranged at both ends of the compression mechanism, to drive the compression mechanism to lift and lower, and to compress the multiple products to be welded.

[0005] The utility model has the beneficial effects that: the positioning tray mechanism is conducive to the adaptive positioning of multiple products to be welded, the lower compression power mechanism is conducive to driving the compression mechanism to displace up and down, and driving the compression mechanism to displace downward to compress the multiple products to be welded on the positioning tray mechanism during welding, the utility model can simultaneously position multiple products to be welded, and ensure that each product to be welded can be compressed, so that there is no gap between the products to be welded, and the efficiency and yield of laser welding are improved.

[0006] On the basis of the above technical solution, the utility model can also be improved as follows.

[0007] Further, the positioning tray mechanism comprises a bottom plate and multiple positioning devices;Multiple positioning devices are arranged side by side on the bottom plate, and multiple products to be welded are adaptively arranged on the top end of multiple positioning devices.

[0008] The beneficial effects of the above further scheme are that: multiple positioning devices are conducive to increasing or decreasing according to the number and size of products to be welded, so as to adapt to different specifications of products.

[0009] Further, the positioning device comprises a positioning base plate, a plurality of supporting blocks, a needle withdrawing plate, a positioning plate, a plurality of first compression springs, a plurality of ejector pins, a plurality of positioning pins, a plurality of positioning sleeves and a plurality of guide assemblies; the supporting blocks and the guide assemblies are mounted on the positioning base plate, the supporting blocks are movably through the needle withdrawing plate and are connected with the positioning plate at the top end, the guide assemblies are connected with the needle withdrawing plate and the positioning plate, the top end and the bottom end of the first compression spring are connected with the bottom end of the needle withdrawing plate and the top end of the positioning base plate respectively, the positioning pins are mounted on the top end of the positioning plate, the ejector pins are fixedly mounted on the top end of the needle withdrawing plate and are movably through the positioning plate, the positioning sleeves are hole-like structures arranged on the positioning plate and are connected with the compression mechanism.

[0010] The beneficial effects of the above further scheme are that the ejector pins and the positioning pins are beneficial to position the products to be welded placed on the positioning plate, to make good positioning preparation for the compression mechanism to compress the products to be welded, to ensure the accuracy of welding, and to cancel the positioning of the products to be welded on the positioning plate after the welding is completed by exerting downward pressure on the needle withdrawing plate to drive the ejector pins to move downward along the guide assemblies.

[0011] Further, the guide assembly comprises a guide column and a linear bearing; the guide column is mounted on the positioning base plate, the guide column is movably through the needle withdrawing plate and is connected with the positioning plate at the top end, and the linear bearing is connected with the needle withdrawing plate and is slidingly mounted on the guide column.

[0012] The beneficial effects of the above further scheme are that the linear bearing is slidingly mounted on the guide column, which is beneficial to make the needle withdrawing plate and the ejector pins mounted on the needle withdrawing plate move upward and downward along the guide column, thereby positioning the products on the positioning plate and canceling the positioning.

[0013] Further, the compression mechanism comprises two cross plates, a plurality of cross beam plates, a plurality of mounting plates, a plurality of compression devices and a plurality of guide pins; the plurality of cross beam plates are arranged side by side and are connected with the two cross plates at both ends respectively, the plurality of mounting plates are mounted on the bottom end of the plurality of cross beam plates respectively, the plurality of compression devices are arranged on both sides of the plurality of mounting plates respectively, and the plurality of guide pins are arranged on the bottom end of the cross plates and are connected with the plurality of positioning sleeves respectively.

[0014] The beneficial effects of the above further scheme are that the beam plate, the mounting plate and the plurality of pressing devices mounted on the mounting plate are conducive to forming a set of devices for pressing the products to be welded, and a plurality of such sets of devices are arranged side by side between the two cross plates, which is conducive to pressing different specifications of products to be welded; and the guide pin cooperates with the positioning sleeve, which is conducive to providing guidance when the pressing mechanism presses the products to be welded on the positioning tray mechanism.

[0015] Further, the pressing device comprises a guide rail mounting plate, a linear guide rail, a sliding block, a pressing block, a limiting block, an equal-height screw and a second compression spring; the linear guide rail is vertically mounted on the side wall of the guide rail mounting plate, the sliding block is slidingly mounted on the linear guide rail, the pressing block is an L-shaped block structure arranged on the sliding block, the limiting block is mounted on the side wall of the guide rail mounting plate, the equal-height screw passes through the limiting block and is connected with the sliding block, the second compression spring is sleeved on the equal-height screw and connected with the sliding block and the limiting block at both ends, and the side of the guide rail mounting plate away from the linear guide rail is mounted on the side wall of the mounting plate.

[0016] The beneficial effects of the above further scheme are that the sliding block is conducive to displacing the pressing block along the linear guide rail up and down, so as to abut and press the surface of the product to be welded, and the second compression spring is conducive to enabling the pressing block to apply approximately the same pressure on different concave and convex parts on the surface of the product to be welded, so that the pressing effect on the product to be welded is better.

[0017] Further, a through hole is arranged on the bottom surface of the pressing block for the top pin and the positioning pin to pass through.

[0018] The beneficial effects of the above further scheme are that the through hole arranged on the bottom surface of the pressing block is conducive to enabling the top pin and the positioning pin to pass through, so that the bottom surface of the pressing block presses the surface of the product to be welded.

[0019] Further, the downward pressing power mechanism comprises a lifting bottom plate, a lifting cylinder, a lifting connecting plate, a lifting guide rail bottom plate, a plurality of lifting guide rails, a lifting plate, a lifting cross plate and a buffer device; the lifting cylinder is mounted on the lifting bottom plate and connected with the lifting connecting plate through an output shaft upwardly, the lifting guide rail bottom plate is vertically arranged on the lifting bottom plate, the lifting guide rail bottom plate is provided with a through hole for the lifting connecting plate to pass through and displace up and down, the lifting guide rails are vertically arranged on the side of the lifting guide rail bottom plate away from the lifting bottom plate, the lifting plate is slidingly mounted on the lifting guide rails, the lifting connecting plate passes through the lifting guide rail bottom plate and is connected with the lifting plate, the lifting cross plate is arranged at the top end of the lifting plate and connected with the end of the cross plate, and the buffer device is connected with the lifting bottom plate and the lifting connecting plate.

[0020] The beneficial effect of the further scheme is that the output shaft of the lifting cylinder is lifted, which is conducive to driving the lifting connecting plate to move up and down within the range of the through hole of the lifting guide rail bottom plate, so that the lifting plate and the lifting horizontal plate move up and down, and then the cross plate and the pressing device connected with the lifting horizontal plate move up and down, thereby realizing the pressing of the product to be welded.

[0021] Further, the buffer device comprises a plurality of buffers and a plurality of abutting blocks; the buffers are installed on the lifting connecting plate, the abutting blocks are installed on the lifting bottom plate, and the plurality of buffers are arranged one by one above the plurality of abutting blocks.

[0022] The beneficial effect of the further scheme is that when the buffer is lowered to abut against the abutting block with the lifting connecting plate, the impact force generated by the too fast lowering is reduced.

[0023] Further, the downward pressing power mechanism further comprises a plurality of reinforcing plates, and the two side edges of the reinforcing plates are connected with the lifting bottom plate and the lifting guide rail bottom plate one by one.

[0024] The beneficial effect of the further scheme is that the reinforcing plate is conducive to enhancing the overall strength of the downward pressing power mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The overall structure decomposition schematic view is provided for the embodiment of the utility model;

[0026] Figure 2 The structure schematic view of the positioning tray mechanism is provided for the embodiment of the utility model;

[0027] Figure 3 The structure schematic view of the positioning device is provided for the embodiment of the utility model;

[0028] Figure 4 The structure schematic view of the pressing mechanism is provided for the embodiment of the utility model;

[0029] Figure 5 The structure schematic view of the pressing device is provided for the embodiment of the utility model;

[0030] Figure 6 The structure schematic view of the downward pressing power mechanism is provided for the embodiment of the utility model.

[0031] In the drawings, the components represented by each number are listed as follows:

[0032] 1, positioning tray mechanism, 2, pressing mechanism, 3, lower pressing power mechanism, 11, bottom plate, 12, positioning device, 21, cross plate, 22, beam plate, 23, mounting plate, 24, pressing device, 25, guide pin, 31, lifting bottom plate, 32, lifting cylinder, 33, lifting connecting plate, 34, lifting guide rail bottom plate, 35, lifting guide rail, 36, lifting plate, 37, lifting cross plate, 38, buffer device, 39, reinforcing plate, 121, positioning bottom plate, 122, support block, 123, needle withdrawing plate, 124, positioning plate, 125, first compression spring, 126, thimble, 127, positioning pin, 128, positioning sleeve, 129, guide assembly, 241, guide rail mounting plate, 242, linear guide rail, 243, sliding block, 244, pressing block, 245, limiting block, 246, equal height screw, 247, second compression spring, 381, buffer, 382, abutting block, 1291, guide column, 1292, linear bearing. DETAILED DESCRIPTION

[0033] The principles and characteristics of the present application are described below, and the examples are used to explain the present application and not to limit the scope of the present application.

[0034] As shown in Figures 1 to 6 A positioning and pressing device for assisting laser welding, comprising: a positioning tray mechanism 1, a pressing mechanism 2, and two lower pressing power mechanisms 3; the positioning tray mechanism 1 is arranged below the pressing mechanism 2, a plurality of products to be welded are adaptively arranged on the positioning tray mechanism 1, and the two lower pressing power mechanisms 3 are correspondingly arranged at the two ends of the pressing mechanism 2 to drive the pressing mechanism 2 to move up and down and press the plurality of products to be welded.

[0035] It should be noted that in the technical scheme of the present application, the "products to be welded" are the "combination" in the background art.

[0036] The present application has the advantages that the positioning tray mechanism is beneficial to adaptively positioning and placing a plurality of products to be welded, the lower pressing power mechanism is beneficial to driving the pressing mechanism to move up and down and to move downward to press the plurality of products to be welded on the positioning tray mechanism during welding, the present application can simultaneously position a plurality of products to be welded, and each product to be welded can be pressed, so that there is no gap between the products to be welded, and the efficiency and yield of laser welding are improved.

[0037] Preferably, as shown in Figure 2 The positioning tray mechanism 1 comprises a bottom plate 11 and a plurality of positioning devices 12; the plurality of positioning devices 12 are arranged side by side on the bottom plate 11, and a plurality of products to be welded are adaptively arranged at the top ends of the plurality of positioning devices 12.

[0038] The beneficial effect of the above preferred scheme is that the plurality of positioning devices facilitates increasing or decreasing according to the quantity and size of the products to be welded, thereby adapting to different specifications of products.

[0039] Preferably, as shown in Figure 3 The positioning device 12 comprises a positioning base plate 121, a plurality of supporting blocks 122, a needle withdrawing plate 123, a positioning plate 124, a plurality of first compression springs 125, a plurality of ejector pins 126, a plurality of positioning pins 127, a plurality of positioning sleeves 128, and a plurality of guide assemblies 129; the supporting blocks 122 and the guide assemblies 129 are both mounted on the positioning base plate 121, the supporting blocks 122 are movably through the needle withdrawing plate 123 and are connected to the positioning plate 124 at the top ends, the guide assemblies 129 are connected to the needle withdrawing plate 123 and the positioning plate 124, the top ends and the bottom ends of the first compression springs 125 are connected to the bottom end of the needle withdrawing plate 123 and the top end of the positioning base plate 121 respectively, the positioning pins 127 are mounted on the top end of the positioning plate 124, the ejector pins 126 are fixedly mounted on the top end of the needle withdrawing plate 123 and are movably through the positioning plate 124, and the positioning sleeves 128 are hole-shaped structures arranged on the positioning plate 124 and are connected to the pressing mechanism 2.

[0040] It should be noted that, in the preferred embodiment of the utility model, the ejector pins 126 cooperate with the positioning pins 127 to position the products to be welded placed on the positioning plate 124, and the products are removed from the positioning pins 127 after the ejector pins 126 are displaced downward, which belongs to the prior art.

[0041] The beneficial effect of the above preferred scheme is that the ejector pins and the positioning pins facilitate positioning the products to be welded placed on the positioning plate, making positioning preparation for the pressing mechanism to press the products to be welded, ensuring the accuracy of welding, and after the welding is completed, exerting downward pressure on the needle withdrawing plate to make the needle withdrawing plate drive the ejector pins to displace downward along the guide assemblies, thereby removing the positioning of the products to be welded on the positioning plate, the supporting blocks facilitate providing support for the positioning plate, and the first compression springs facilitate using the elastic force to lift the needle withdrawing plate and the ejector pins back to the initial state after the welded products are removed.

[0042] Preferably, as shown in Figure 3 The guide assemblies 129 comprise guide columns 1291 and linear bearings 1292; the guide columns 1291 are mounted on the positioning base plate 121, the guide columns 1291 are movably through the needle withdrawing plate 123 and are connected to the positioning plate 124 at the top ends, and the linear bearings 1292 are connected to the needle withdrawing plate 123 and are slidingly mounted on the guide columns 1291.

[0043] The beneficial effect of the above preferred scheme is that the linear bearing is slidingly installed on the guide column, which is conducive to the displacement of the needle plate and the ejector pin installed on the needle plate along the guide column, thereby positioning and unpositioning the product on the positioning plate.

[0044] Preferably, as shown in Figure 4 The pressing mechanism 2 comprises two cross plates 21, a plurality of beam plates 22, a plurality of mounting plates 23, a plurality of pressing devices 24 and a plurality of guide pins 25. The plurality of beam plates 22 are arranged side by side, and both ends are connected to the two cross plates 21 one by one. The plurality of mounting plates 23 are installed at the bottom end of the plurality of beam plates 22 one by one. The plurality of pressing devices 24 are arranged on both sides of the plurality of mounting plates 23 respectively. The plurality of guide pins 25 are arranged at the bottom end of the cross plate 21 and are inserted into the positioning sleeve 128 one by one.

[0045] The beneficial effect of the above preferred scheme is that the beam plate, the mounting plate and the plurality of pressing devices installed on the mounting plate are conducive to forming a set of devices for pressing the products to be welded, and a plurality of such devices are arranged side by side between the two cross plates, which is conducive to pressing different specifications of products to be welded. The guide pin cooperating with the positioning sleeve is conducive to providing guidance when the pressing mechanism presses the products to be welded on the positioning tray mechanism.

[0046] Preferably, as shown in Figure 5 The pressing device 24 comprises a guide rail mounting plate 241, a linear guide rail 242, a sliding block 243, a pressing block 244, a limiting block 245, an equal height screw 246 and a second compression spring 247. The linear guide rail 242 is vertically installed on the side wall of the guide rail mounting plate 241. The sliding block 243 is slidingly installed on the linear guide rail 242. The pressing block 244 is an L-shaped block structure arranged on the sliding block 243. The limiting block 245 is installed on the side wall of the guide rail mounting plate 241. The equal height screw 246 passes through the limiting block 245 and is connected with the sliding block 243. The second compression spring 247 is sleeved on the equal height screw 246, and both ends are connected with the sliding block 243 and the limiting block 245 one by one. The side of the guide rail mounting plate 241 away from the linear guide rail 242 is installed on the side wall of the mounting plate 23.

[0047] The beneficial effect of the above preferred scheme is that the sliding block is conducive to the displacement of the pressing block along the linear guide rail, thereby abutting and pressing the surface of the product to be welded. The second compression spring is conducive to applying approximately the same pressure to different concave and convex parts on the surface of the product to be welded, thereby better pressing the product to be welded.

[0048] Preferably, as shown in Figure 5As shown in the figure, the bottom surface of the pressing block 244 is provided with a through hole for the ejection pin 126 and the positioning pin 127 to pass through.

[0049] The advantage of the above preferred embodiment is that the through hole on the bottom surface of the pressing block is conducive to the ejection pin and the positioning pin to pass through, so that the bottom surface of the pressing block can press the surface of the product to be welded.

[0050] Preferably, as shown in the figure, Figure 6 As shown in the figure, the downward pressing power mechanism 3 comprises a lifting bottom plate 31, a lifting cylinder 32, a lifting connecting plate 33, a lifting guide rail bottom plate 34, a plurality of lifting guide rails 35, a lifting plate 36, a lifting cross plate 37 and a buffer device 38; the lifting cylinder 32 is installed on the lifting bottom plate 31, and the output shaft is connected to the lifting connecting plate 33 upwardly; the lifting guide rail bottom plate 34 is vertically arranged on the lifting bottom plate 31, and the lifting guide rail bottom plate 34 is provided with a through hole for the lifting connecting plate 33 to pass through and displace up and down; the lifting guide rail 35 is vertically arranged on the side of the lifting guide rail bottom plate 34 away from the lifting bottom plate 31; the lifting plate 36 is slidingly installed on the lifting guide rail 35; the lifting connecting plate 33 passes through the lifting guide rail bottom plate 34 and is connected to the lifting plate 36; the lifting cross plate 37 is arranged at the top end of the lifting plate 36 and is connected to the end of the cross plate 21; and the buffer device 38 is connected to the lifting bottom plate 31 and the lifting connecting plate 33.

[0051] The advantage of the above preferred embodiment is that the output shaft of the lifting cylinder is lifted to drive the lifting connecting plate to displace up and down within the through hole range of the lifting guide rail bottom plate, so that the lifting plate and the lifting cross plate displace up and down, and then the cross plate connected to the lifting cross plate and the pressing device displace up and down, thereby realizing the pressing of the product to be welded.

[0052] Preferably, as shown in the figure, Figure 6 As shown in the figure, the buffer device 38 comprises a plurality of buffers 381 and a plurality of abutting blocks 382; the buffers 381 are installed on the lifting connecting plate 33, the abutting blocks 382 are installed on the lifting bottom plate 31, and a plurality of the buffers 381 are arranged one by one above a plurality of the abutting blocks 382.

[0053] The advantage of the above preferred embodiment is that when the buffer descends to abut against the abutting block with the lifting connecting plate, it is conducive to reducing the impact force generated by the rapid descent.

[0054] Preferably, as shown in the figure, Figure 6 As shown in the figure, the downward pressing power mechanism 3 further comprises a plurality of reinforcing plates 39, and the two side edges of the reinforcing plate 39 are connected to the lifting bottom plate 31 and the lifting guide rail bottom plate 34 one by one.

[0055] The beneficial effect of adopting the above-mentioned preferred solution is that the reinforcing plate helps to enhance the overall strength of the downward pressing power mechanism.

[0056] The working process of this utility model is described below:

[0057] like Figures 1 to 6 As shown, firstly, select the corresponding number of positioning devices 12 according to the size of the product, and install multiple positioning devices 12 on the base plate 11. Then, place multiple products to be welded on the ejector pins 126 and positioning pins 127 to complete the positioning.

[0058] Then, the lifting cylinder 32 is activated, causing the output shaft of the lifting cylinder 32 to retract. The output shaft of the lifting cylinder 32 will then drive the lifting plate 36 and the lifting cross plate 37 to move downward through the lifting connecting plate 33, thereby causing the cross plate 21 and multiple pressing devices 24 to move downward. When the bottom surface of the pressing block 244 moves downward to contact the product to be welded, the pressing is completed, and the product is ready to be welded.

[0059] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0063] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0064] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A positioning and clamping device for assisting laser welding, characterized in that, include: The positioning tray mechanism (1), the pressing mechanism (2), and two pressing power mechanisms (3) are provided. The positioning tray mechanism (1) is located below the pressing mechanism (2). Multiple products to be welded are adapted to be placed on the positioning tray mechanism (1). The two pressing power mechanisms (3) are correspondingly located at both ends of the pressing mechanism (2) to drive the pressing mechanism (2) to rise and fall, thereby pressing the multiple products to be welded.

2. The positioning and clamping device for auxiliary laser welding according to claim 1, characterized in that, The positioning tray mechanism (1) includes a base plate (11) and multiple positioning devices (12); the multiple positioning devices (12) are arranged side by side on the base plate (11), and multiple products to be welded are fitted on the top of the multiple positioning devices (12).

3. The positioning and clamping device for auxiliary laser welding according to claim 2, characterized in that, The positioning device (12) includes: a positioning base plate (121), multiple support blocks (122), a needle withdrawal plate (123), a positioning plate (124), multiple first compression springs (125), multiple ejector pins (126), multiple positioning pins (127), multiple positioning sleeves (128), and multiple guide components (129). The support block (122) and the guide assembly (129) are both mounted on the positioning base plate (121). The support block (122) can movably pass through the needle ejection plate (123) and its top end is connected to the positioning plate (124). The guide assembly (129) is connected to the needle ejection plate (123) and the positioning plate (124). The top and bottom ends of the first compression spring (125) are connected one-to-one with the bottom end of the needle ejection plate (123) and the top end of the positioning base plate (121). The positioning pin (127) is mounted on the top end of the positioning plate (124). The ejector pin (126) is fixedly mounted on the top end of the needle ejection plate (123) and can movably pass through the positioning plate (124). The positioning sleeve (128) is a hole-like structure set on the positioning plate (124) and is adapted to and connected to the pressing mechanism (2).

4. The positioning and clamping device for auxiliary laser welding according to claim 3, characterized in that, The guide assembly (129) includes a guide post (1291) and a linear bearing (1292); the guide post (1291) is mounted on the positioning base plate (121), the guide post (1291) is movably passed through the needle ejection plate (123), and its top end is connected to the positioning plate (124); the linear bearing (1292) is connected to the needle ejection plate (123) and is slidably mounted on the guide post (1291).

5. The positioning and clamping device for auxiliary laser welding according to claim 3, characterized in that, The clamping mechanism (2) includes: two cross plates (21), multiple crossbeam plates (22), multiple mounting plates (23), multiple clamping devices (24), and multiple guide pins (25); Multiple beam plates (22) are arranged side by side, and each end is connected to two cross plates (21) in a corresponding manner. Multiple mounting plates (23) are installed at the bottom of multiple beam plates (22) in a corresponding manner. Multiple clamping devices (24) are respectively arranged on both sides of multiple mounting plates (23). Multiple guide pins (25) are arranged at the bottom of the cross plates (21) and are adapted to be inserted into multiple positioning sleeves (128) in a corresponding manner.

6. The positioning and clamping device for auxiliary laser welding according to claim 5, characterized in that, The clamping device (24) includes: a guide rail mounting plate (241), a linear guide rail (242), a sliding block (243), a clamping block (244), a limiting block (245), an equal-height screw (246), and a second compression spring (247). The linear guide rail (242) is vertically mounted on the side wall of the guide rail mounting plate (241). The sliding block (243) is slidably mounted on the linear guide rail (242). The clamping block (244) is an L-shaped block structure set on the sliding block (243). The limiting block (245) is mounted on the side wall of the guide rail mounting plate (241). The equalizing screw (246) passes through the limiting block (245) and is connected to the sliding block (243). The second compression spring (247) is sleeved on the equalizing screw (246), and its two ends are connected to the sliding block (243) and the limiting block (245) respectively. The side of the guide rail mounting plate (241) away from the linear guide rail (242) is mounted on the side wall of the mounting plate (23).

7. The positioning and clamping device for auxiliary laser welding according to claim 6, characterized in that, The bottom surface of the clamping block (244) is provided with a through hole for the ejector pin (126) and the positioning pin (127) to pass through.

8. The positioning and clamping device for auxiliary laser welding according to claim 5, characterized in that, The downward pressing power mechanism (3) includes: a lifting base plate (31), a lifting cylinder (32), a lifting connecting plate (33), a lifting guide rail base plate (34), multiple lifting guide rails (35), a lifting plate (36), a lifting cross plate (37), and a buffer device (38). The lifting cylinder (32) is mounted on the lifting base plate (31) and is connected to the lifting connecting plate (33) in the output axis. The lifting guide rail base plate (34) is vertically mounted on the lifting base plate (31). The lifting guide rail base plate (34) is provided with a through hole for the lifting connecting plate (33) to pass through and move up and down. The lifting guide rail (35) is vertically mounted on the side of the lifting guide rail base plate (34) away from the lifting base plate (31). The lifting plate (36) is slidably mounted on the lifting guide rail (35). The lifting connecting plate (33) passes through the lifting guide rail base plate (34) and is connected to the lifting plate (36). The lifting cross plate (37) is located at the top of the lifting plate (36) and is connected to the end of the cross plate (21). The buffer device (38) is connected to the lifting base plate (31) and the lifting connecting plate (33).

9. The positioning and clamping device for auxiliary laser welding according to claim 8, characterized in that, The buffer device (38) includes multiple buffers (381) and multiple abutment blocks (382); the buffers (381) are installed on the lifting connecting plate (33), and the abutment blocks (382) are installed on the lifting base plate (31). The multiple buffers (381) are arranged one-to-one above the multiple abutment blocks (382).

10. The positioning and clamping device for auxiliary laser welding according to claim 8, characterized in that, The downward pressing power mechanism (3) also includes multiple reinforcing plates (39), the two sides of which are connected to the lifting base plate (31) and the lifting guide rail base plate (34) respectively.

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