Positioning and pressing device for laser welding part

Abstract

The utility model discloses a positioning and pressing device for a laser welding part. The positioning and pressing device comprises a bottom plate, a side plate is fixedly arranged on one side of the upper end of the bottom plate, a pressing mechanism used for pressing a welding workpiece is arranged on the surface of the side plate, the pressing mechanism comprises a mounting frame, a first rotating shaft, a rotating arm, a second rotating shaft, a control handle, a third rotating shaft, a pressing rod, a fourth rotating shaft and a pressing head, and the mounting frame is fixedly arranged on one side of the surface of the side plate. And a first rotating shaft is movably arranged on one side of the upper end of the mounting frame through a bearing. The laser welding device is good in using effect, the pressing length of the pressing device can be adjusted, so that the laser welding device can be suitable for pressing and fixing various parts of different specifications so as to facilitate laser welding focusing, meanwhile, the pressing head of the laser welding device can be replaced at any time according to needs and can be replaced with a new one when being damaged, and the working efficiency is improved. And the pressing head with the special-shaped structure can be quickly replaced when needing to be replaced, so that the using effect of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning and clamping device technology, specifically a positioning and clamping device for laser-welded parts. Background Technology

[0002] Laser welding is currently an advanced welding method. In laser welding without a special mold, a clamping device is needed to fix the workpiece during laser welding to facilitate subsequent welding work and ensure welding quality. If the fixation is not good, the workpiece may shake, which may cause the welding position to be off-focus. Welding off-focus will result in poor welding effect or even failure to weld. It is also easy to cause gaps in the welded parts, resulting in extremely poor welding effect.

[0003] In existing laser welding positioning clamps, the length or clamping block cannot be adjusted. This makes it impossible to adapt to various workpiece models to ensure that the welding position of the workpiece is at the focal point. At the same time, the clamping block is difficult to disassemble, and it is not easy to replace it quickly after it is damaged. Therefore, an improved laser welding positioning clamp is needed to address this problem. Utility Model Content

[0004] The purpose of this invention is to provide a positioning and clamping device for laser-welded parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser welding part positioning clamping device, comprising a base plate. A side plate is fixedly disposed on one side of the upper end of the base plate, and a clamping mechanism for clamping the welded workpiece is disposed on the surface of the side plate. The clamping mechanism includes a mounting frame, a first rotating shaft, a rotating arm, a second rotating shaft, a control handle, a third rotating shaft, a clamping rod, a fourth rotating shaft, and a clamping head. A mounting frame is fixedly disposed on one side of the side plate surface. A first rotating shaft is movably disposed on one side of the upper end of the mounting frame via a bearing. A rotating arm is fixedly disposed on the surface of the first rotating shaft. A second rotating shaft is movably disposed on the lower end of the mounting frame via a bearing. A control handle is fixedly disposed on the surface of the second rotating shaft. A third rotating shaft is movably disposed on the upper end of the control handle via a bearing. A clamping rod is movably disposed on the upper end of the control handle via the third rotating shaft. A fourth rotating shaft is movably disposed between the lower end of the clamping rod and the rotating arm via a bearing. A clamping head is disposed on the lower end of the rotating arm. An adjustment mechanism for adjusting the position of the clamping head is disposed between the clamping head and the rotating arm.

[0006] Preferably, the adjusting mechanism includes a nut, a screw, a first connecting member, and a second connecting member. The nut is fixedly mounted on the surface of the rotating arm, and the screw is movably engaged inside the nut via a thread. The first connecting member is fixedly mounted on the lower end of the screw, and the second connecting member is mounted on one side of the first connecting member. The second connecting member is fixedly connected to the clamping head. The overall height of the clamping head can be adjusted by the adjusting mechanism. Thus, when operating this device to clamp and fix workpieces, this device can adapt to clamping and fixing parts of various thicknesses and specifications, preventing workpiece shaking, and facilitating laser welding focusing.

[0007] Preferably, both the second connector and the upper end of the pressing head are fixedly provided with a limiting rod, and a limiting groove is opened on the outer surface of the lower end of the second connector. When the limiting rod is inserted into the limiting groove from bottom to top, it can prevent the second connector from moving forward, backward, left, right and upward.

[0008] Preferably, both the first and second connectors have slots on their surfaces, and tenon and mortise pins are inserted into the limiting slots. After the limiting rod is inserted into the limiting slot from bottom to top, the tenon and mortise pins are then inserted into the slots. At this time, the limiting rod and the limiting slot can prevent the second connector from moving forward, backward, left, right, and upward, while the tenon and mortise pins can prevent the second connector from moving downward. In this way, the tenon and mortise structure can quickly fix the first and second connectors. As long as the tenon and mortise pins do not fall off, the second connector and the clamping head will be firmly fixed at the lower end of the first connector. Furthermore, because this device uses a tenon and mortise structure, the fixing and disassembly of the clamping head of the entire device is also relatively convenient.

[0009] Preferably, a through hole is provided on one side of the surface of the tenon and mortise pin, and an elastic limiting pin is inserted into the through hole. After the tenon and mortise pin is inserted into the limiting groove, in order to prevent the tenon and mortise pin from falling out, the elastic limiting member is inserted into the through hole, which can prevent the tenon and mortise pin from falling out of the through groove.

[0010] Preferably, the outer surface of the lower end of the clamping head is provided with several holes. The holes make the lower surface of the clamping head uneven, thereby increasing the friction of the clamping head and improving the clamping effect when clamping and fixing the workpiece.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. According to the different thicknesses of the workpiece, the position of the screw and the clamping head of this device can be adjusted. When adjusting, simply rotate the screw, and the clamping head will move up and down under the action of the thread. In this way, this device can adapt to clamping and fixing parts of various thicknesses and specifications, preventing the workpiece from shaking, so as to facilitate laser welding focusing work.

[0013] 2. When installing the clamping head of this utility model, the second connecting piece is pushed from bottom to top along the first connecting piece, so that the limiting rod is inserted from bottom to top into the limiting groove. Then, the tenon and mortise pin is inserted into the slot. At this time, the limiting rod and the limiting groove can prevent the second connecting piece from moving forward, backward, left, right, and upward, while the tenon and mortise pin can prevent the second connecting piece from moving downward. In this way, the first connecting piece and the second connecting piece can be quickly fixed by using the tenon and mortise structure. As long as the tenon and mortise pin does not fall off, the second connecting piece and the clamping head will be firmly fixed at the lower end of the first connecting piece. Furthermore, because this device uses the tenon and mortise structure, the fixing and disassembly of the clamping head of the entire device is also relatively convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a laser welding part positioning and clamping device according to the present invention;

[0015] Figure 2 This is an overall structural view of the clamping mechanism in a laser welding part positioning clamping device according to the present invention;

[0016] Figure 3 This is an exploded view of the clamping mechanism in a laser welding part positioning clamping device according to the present invention;

[0017] Figure 4 This utility model relates to a positioning and clamping device for laser-welded parts. Figure 3 A bottom view;

[0018] Figure 5 This utility model relates to a positioning and clamping device for laser-welded parts. Figure 3 A magnified view of point A in the middle.

[0019] In the diagram: 1. Base plate; 2. Side plate; 3. Mounting bracket; 4. First pivot; 5. Rotating arm; 6. Second pivot; 7. Control handle; 8. Third pivot; 9. Pressure rod; 10. Fourth pivot; 11. Pressure head; 12. Nut; 13. Screw; 14. First connector; 15. Second connector; 16. Limiting rod; 17. Limiting groove; 18. Slot; 19. Tenon and mortise pin; 20. Through hole; 21. Elastic limiting pin. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5This utility model provides a technical solution: a laser welding part positioning clamping device, including a base plate 1. A side plate 2 is fixedly disposed on one side of the upper end of the base plate 1. A clamping mechanism for clamping the welded workpiece is disposed on the surface of the side plate 2. The clamping mechanism includes a mounting frame 3, a first rotating shaft 4, a rotating arm 5, a second rotating shaft 6, a control handle 7, a third rotating shaft 8, a clamping rod 9, a fourth rotating shaft 10, and a clamping head 11. A mounting frame 3 is fixedly disposed on one side of the surface of the side plate 2. A first rotating shaft 4 is movably disposed on one side of the upper end of the mounting frame 3 via a bearing. A rotating arm 5 is fixedly disposed on the surface of the first rotating shaft 4. A second rotating shaft 6 is movably mounted on the lower end of the surface via a bearing. A control handle 7 is fixedly mounted on the surface of the second rotating shaft 6. A third rotating shaft 8 is movably mounted on the upper end of the control handle 7 via a bearing. A pressing rod 9 is movably mounted on the control handle 7 via the third rotating shaft 8. A fourth rotating shaft 10 is movably mounted between the lower end of the pressing rod 9 and the rotating arm 5 via a bearing. A pressing head 11 is mounted on the lower end of the rotating arm 5. An adjustment mechanism for adjusting the position of the pressing head 11 is provided between the pressing head 11 and the rotating arm 5.

[0022] The adjustment mechanism includes a nut 12, a screw 13, a first connecting member 14, and a second connecting member 15. The nut 12 is fixedly mounted on the surface of the rotating arm 5. The screw 13 is screwed into the nut 12 through a thread. The first connecting member 14 is fixedly mounted on the lower end of the screw 13. The second connecting member 15 is mounted on one side of the first connecting member 14. The second connecting member 15 is fixedly connected to the clamping head 11. The overall height of the clamping head 11 can be adjusted by the adjustment mechanism. In this way, when operating this device to clamp and fix the workpiece, this device can adapt to clamping and fixing parts of various thicknesses and specifications, preventing the workpiece from shaking, so as to facilitate laser welding focusing work.

[0023] Limiting rods 16 are fixedly provided at the upper ends of the second connector 15 and the pressing head 11. A limiting groove 17 is opened on the outer surface of the lower end of the second connector 15. When the limiting rod 16 is inserted into the limiting groove 17 from bottom to top, it can prevent the second connector 15 from moving forward, backward, left, right and upward.

[0024] Both the first connector 14 and the second connector 15 have slots 18 on their surfaces. A tenon and mortise pin 19 is inserted into the limiting groove 17. After the limiting rod 16 is inserted into the limiting groove 17 from bottom to top, the tenon and mortise pin 19 is then inserted into the slot 18. At this time, the limiting rod 16 and the limiting groove 17 can prevent the second connector 15 from moving forward, backward, left, right, and upward, while the tenon and mortise pin 19 can prevent the second connector 15 from moving downward. In this way, the tenon and mortise structure can quickly fix the first connector 14 and the second connector 15. As long as the tenon and mortise pin 19 does not fall off, the second connector 15 and the clamping head 11 will be firmly fixed at the lower end of the first connector 14. Furthermore, because this device uses a tenon and mortise structure, the fixing and disassembly of the clamping head 11 of the entire device is also relatively convenient.

[0025] A through hole 20 is provided on one side of the surface of the tenon and tenon pin 19. An elastic limiting pin 21 is inserted inside the through hole 20. After the tenon and tenon pin 19 is inserted into the limiting groove 17, in order to prevent the tenon and tenon pin 19 from falling out, the elastic limiting member is inserted into the through hole 20 to prevent the tenon and tenon pin 19 from falling out of the through groove.

[0026] The lower outer surface of the clamping head 11 has several holes. The holes make the lower surface of the clamping head 11 uneven, thereby increasing the friction of the clamping head 11 and improving the clamping effect when clamping the workpiece.

[0027] Working principle: When using this device, the way to clamp the workpiece is simple. Just rotate the control handle 7 so that the first rotating shaft 4, the third rotating shaft 8 and the fourth rotating shaft 10 are on the same numerical line. At this time, the rotating arm 5 can be locked and drive the screw 13 and the clamping head 11 to press vertically downward on the surface of the workpiece, thereby clamping the workpiece to facilitate subsequent welding work.

[0028] Furthermore, depending on the thickness of the workpiece, the positions of the screw 13 and the clamping head 11 of this device can be adjusted. During adjustment, simply rotate the screw 13, and the clamping head 11 will move up and down under the action of the thread. In this way, this device can adapt to clamping and fixing parts of various thicknesses to prevent the workpiece from shaking, so as to facilitate laser welding focusing work.

[0029] Furthermore, the clamping head 11 is a vulnerable part in this device, and it is easily damaged by prolonged pressure. It can also be replaced with irregularly shaped workpieces (specifically, it can be changed to the required shape according to welding needs). When installing the clamping head 11, the second connecting member 15 is pushed from bottom to top along the first connecting member 14, so that the limiting rod 16 is inserted from bottom to top into the limiting groove 17. Then, the tenon pin 19 is inserted into the slot 18. At this time, the limiting rod 16 and the limiting groove 17 can prevent the second connecting member 15 from moving forward, backward, left, right, and upward, while the tenon pin 19 can prevent the second connecting member 15 from moving downward. This tenon and mortise structure allows for quick fixing of the first connecting member 14 and the second connecting member 15. As long as the tenon pin 19 does not fall off, the second connecting member 15 and the clamping head 11 will be firmly fixed to the lower end of the first connecting member 14. Furthermore, because this device utilizes the tenon and mortise structure, fixing and disassembling the clamping head 11 is also relatively convenient.

[0030] It should be noted that this device can also be used for clamping parts in other machining equipment.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping device for laser-welded parts, comprising a base plate (1), characterized in that: A side plate (2) is fixedly installed on one side of the upper end of the base plate (1). A clamping mechanism for clamping the welded workpiece is provided on the surface of the side plate (2). The clamping mechanism includes a mounting bracket (3), a first rotating shaft (4), a rotating arm (5), a second rotating shaft (6), a control handle (7), a third rotating shaft (8), a clamping rod (9), a fourth rotating shaft (10), and a clamping head (11). A mounting bracket (3) is fixedly installed on one side of the surface of the side plate (2). A first rotating shaft (4) is movably installed on one side of the upper end of the mounting bracket (3) via a bearing. A rotating arm (5) is fixedly installed on the surface of the first rotating shaft (4). (3) A second rotating shaft (6) is movably arranged at the lower end of the surface via a bearing. A control handle (7) is fixedly arranged on the surface of the second rotating shaft (6). A third rotating shaft (8) is movably arranged at the upper end of the control handle (7) via a bearing. A pressing rod (9) is movably arranged at the inside of the control handle (7) via the third rotating shaft (8). A fourth rotating shaft (10) is movably arranged between the lower end of the pressing rod (9) and the rotating arm (5) via a bearing. A pressing head (11) is arranged at the lower end of the rotating arm (5). An adjustment mechanism for adjusting the position of the pressing head (11) is arranged between the pressing head (11) and the rotating arm (5).

2. The laser welding part positioning and clamping device according to claim 1, characterized in that: The adjusting mechanism includes a nut (12), a screw (13), a first connector (14), and a second connector (15). The rotating arm (5) is fixedly provided with a nut (12). The nut (12) is screwed into the nut (12) by a thread. The lower end of the screw (13) is fixedly provided with a first connector (14). The first connector (15) is provided on one side of the first connector (14). The second connector (15) is fixedly connected to the pressing head (11).

3. The laser welding part positioning and clamping device according to claim 2, characterized in that: The second connector (15) and the upper end of the pressing head (11) are both fixedly provided with limit rods (16), and the lower outer surface of the second connector (15) is provided with a limit groove (17).

4. A laser welding part positioning and clamping device according to claim 3, characterized in that: Both the first connector (14) and the second connector (15) have slots (18) on their surfaces, and tenon and mortise pins (19) are inserted inside the limiting groove (17).

5. A laser welding part positioning and clamping device according to claim 4, characterized in that: A through hole (20) is provided on one side of the surface of the tenon and mortise pin (19), and an elastic limiting pin (21) is inserted inside the through hole (20).

6. A laser welding part positioning and clamping device according to claim 5, characterized in that: The outer surface of the lower end of the clamping head (11) has several holes.

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