Multi-station galvanometer welding device

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a multi-station galvanometer welding device which comprises a machine frame, a welding mechanism, a driving mechanism, a feeding mechanism, a lifting mechanism and a light-transmitting pressing plate, the welding mechanism is erected on the machine frame, and the light-transmitting pressing plate and the welding mechanism are correspondingly arranged in a welding mode. The welding mechanism is used for welding a workpiece below the light-transmitting pressing plate, the light-transmitting pressing plate is located above the feeding mechanism, the feeding mechanism is driven by the driving mechanism to be close to or away from the light-transmitting pressing plate, the positioning die body is used for installing and positioning the workpiece, the light-transmitting pressing plate is driven by the lifting mechanism to move in the vertical direction, and the light-transmitting pressing plate is used for pressing the workpiece on the positioning die body. A plurality of workpieces can be welded at one time of transfer, the welding efficiency is improved, the positioning die body and the light-transmitting pressing plate are arranged, and the workpieces can be well positioned before welding, that is, the workpieces are fixed between the positioning die body and the light-transmitting pressing plate.

Description

Technical Field

[0001] The utility model belongs to the field of laser welding technology, and specifically relates to a multi-station galvanometer welding device Background Art

[0002] The principle of galvanometer scanning laser welding technology is mainly based on the generation, transmission and control of laser beams, as well as laser focusing and high-speed movement to complete the welding process. First of all, as the core component of the welding machine, the laser can generate a laser beam with high energy density. These laser beams are transmitted to the galvanometer scanning system through optical fibers or reflectors. The galvanometer scanning system consists of two reflectors and servo motors, which can rotate at high speed and change the direction of the laser beam. The computer accurately controls the angle of the reflector so that the laser beam forms a specific scanning path on the workpiece. Before the laser beam reaches the surface of the workpiece, it will pass through a focusing lens to focus the laser beam into a very small spot, thereby obtaining a higher energy density and achieving efficient welding. This focusing technology not only increases the welding speed, but also ensures the welding quality. During the welding process, the adjusted laser beam is focused in the welding area, generating high temperature, which instantly melts the welding material. At the same time, the galvanometer vibrates at a high frequency, so that the laser beam moves quickly in the welding area to complete the welding process. This combination of high-speed movement and precise focusing enables galvanometer scanning laser welding technology to achieve efficient and high-precision welding. In galvanometer scanning laser welding, the galvanometer plays a vital role. It consists of an XY optical scanning head, an electronic drive amplifier and an optical reflective lens. The computer precisely controls the reflection angle of the reflector so that the laser beam scans the workpiece along a preset trajectory. This high-speed, high-precision scanning method is not only suitable for welding, but also for laser marking.

[0003] A Chinese patent discloses a laser welding machine with a galvanometer (please refer to Figure 1), the announcement number is CN204818433U, the laser welding machine includes a main box body, a control device, a laser, a galvanometer bracket and a workbench panel. The control device includes a microprocessor and a driver electrically connected to the microprocessor, and these control devices are arranged in the main box body. The laser welding machine also includes a galvanometer bracket that can move up and down along the lifting bracket, one end of the galvanometer bracket is installed on the lifting bracket, and the other end is installed with a galvanometer. A workbench panel is also provided at the top of the main box body, and the galvanometer is directly opposite to the workbench panel. In addition, the laser welding machine also includes a laser used in conjunction with the galvanometer, the laser is electrically connected to the control device, and the laser adopts an infrared semiconductor laser. The laser welding machine also includes a temperature feedback device, which is electrically connected to the control device and includes a temperature sensor. In addition, the laser welding machine also includes a visual positioning device, which is electrically connected to the control device and includes a CCD camera, and the CCD camera is set toward the workbench panel. Apply solder paste to the welding position of the product and mark the identification point, fix the product on the workbench panel, roughly adjust the height and angle of the galvanometer according to the heating position, the visual positioning device can accurately locate the identification point, automatically find the position to be heated, and transmit the information to the control device. The control device controls the angle of the galvanometer to deflect the laser beam emitted by the laser, so that the laser beam heats the position that needs to be heated.

[0004] By analyzing the existing technology: it uses lasers for non-contact heating welding, which can effectively avoid the problems encountered in traditional heating processes, such as the workpiece being blocked, the workpiece being damaged by the heated area, and the workpiece being squeezed. However, when fixing the product on the work surface, the galvanometer needs to be lifted to an appropriate distance by the lifting bracket before the product can be installed on the work surface; when welding is required, the galvanometer is lowered to the working distance by the lifting bracket before entering the welding work. After the welding work is completed, the laser stops welding and then the product can be manually installed on the work surface, or the galvanometer needs to be lifted to an appropriate distance after the laser stops welding so that the product can be installed between the galvanometer and the work surface. In the existing technology, due to the high energy and potential reflection of the laser during welding, the more expensive lenses in the galvanometer system may be damaged; in addition, spatter, smoke or other pollutants may be generated during the welding process. These pollutants may adhere to the lenses, affecting the quality of the laser beam and the welding effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides, on the one hand, a multi-station galvanometer welding device, which includes a frame, a welding mechanism, a driving mechanism, a feeding mechanism, a lifting mechanism and a light-transmitting pressure plate. The welding mechanism is mounted on the frame, and the light-transmitting pressure plate is arranged corresponding to the welding of the welding mechanism. The light-transmitting pressure plate is located below the welding mechanism, and the welding mechanism welds the workpiece below the light-transmitting pressure plate. The light-transmitting pressure plate is located above the feeding mechanism, and the feeding mechanism is driven by the driving mechanism to approach or move away from the light-transmitting pressure plate. A plurality of positioning molds are arranged on the feeding mechanism, and the positioning molds are used to install and position the workpiece. The light-transmitting pressure plate moves in the up and down directions under the drive of the lifting mechanism, and the light-transmitting pressure plate is used to press the workpiece on the positioning mold.

[0006] Preferably, the driving mechanism is connected to the feeding mechanism for driving the feeding mechanism to move along the Y direction. The transparent pressure plate and the welding mechanism are arranged in the Y direction. The feeding mechanism is connected to a guide rail. A guide slider is also arranged at one end of the guide rail away from the feeding mechanism. The guide slider is slidably connected to the guide rail.

[0007] Preferably, a positioning grid plate is provided at the output end of the lifting mechanism, and the lifting mechanism drives the positioning grid plate to move along the Z direction. A plurality of positioning holes are provided on the positioning grid plate, and the properties of the positioning holes are adapted to the positioning mold body. The light-transmitting pressure plate is a quartz glass pressure plate, and the quartz glass pressure plates are respectively arranged at the upper ends of the positioning holes. When the positioning grid plate moves downward and abuts against the feeding mechanism, the lower ends of the positioning holes are sleeved outside the positioning mold body, and the quartz glass pressure plate presses the workpiece against the positioning mold body.

[0008] Preferably, the welding mechanism is provided with a laser head and a Z motion axis, the Z motion axis drives the laser head to move along the Z direction, a quartz glass pressure plate is also mounted on the frame, the laser head can move above the quartz glass pressure plate, and the laser head welds the workpiece below the quartz glass pressure plate.

[0009] Preferably, a gantry is also mounted on the frame, a Z motion axis is arranged on the gantry, and a laser head is arranged at the output end of the Z motion axis.

[0010] Preferably, the frame is provided with more than two feeding mechanisms, each feeding mechanism is provided with a plurality of positioning mold bodies, and the driving mechanisms are respectively connected to the feeding mechanisms in driving relation.

[0011] Preferably, the feeding mechanism further comprises a feeding platform and a spring, the feeding platform is drivingly connected to the driving mechanism, the feeding platform is connected to the positioning mold body through the spring, and the two are respectively at the lower end and the upper end of the spring.

[0012] Preferably, a guide column is fixedly provided at the lower end of the positioning mold body, a movable through hole is provided in the feeding platform, and the lower end of the guide column can be telescopically installed in the movable through hole of the feeding platform.

[0013] Preferably, the upper surface of the positioning mold body is provided with a groove whose shape matches the workpiece, and the groove opens upward; and the light-transmitting pressure plate is a quartz glass pressure plate.

[0014] Preferably, the frame is also provided with a hood, the welding mechanism and the light-transmitting pressure plate are arranged in the hood, and a feed port is also opened at the front end of the hood, and the feed port is used for placing the workpiece on the feeding mechanism. A first movable door can be opened and closed on the feed port, and the first movable door is used to open or close the feed port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features and advantages of the present invention will become clearer through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the main purpose of the present invention.

[0016] Figure 1 A schematic diagram of the structure of the prior art;

[0017] Figure 2 A schematic diagram of the structure of a galvanometer welding device provided in an embodiment;

[0018] Figure 3 Another structural schematic diagram of the galvanometer welding device provided in the embodiment;

[0019] Figure 4 A schematic diagram of the structure of the feeding mechanism, driving mechanism, lifting mechanism and quartz glass pressing plate provided in the embodiment;

[0020] Figure 5 A schematic diagram of the structure of the feeding mechanism, lifting mechanism and quartz glass pressing plate provided in the embodiment.

[0021] Figure symbols: frame 100, machine cover 101, feed port 102, first movable door 103, welding mechanism 104, Z motion axis 106, gantry 107, driving mechanism 108, guide slider 109, guide rail 110, feeding mechanism 111, feeding platform 112, positioning mold 113, spring 114, guide column 115, lifting mechanism 116, quartz glass pressure plate 117, positioning grid plate 118, workpiece 119. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0023] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] On the one hand, a multi-station galvanometer welding device is provided, which includes a frame 100, a welding mechanism 104, a driving mechanism 108, a feeding mechanism 111, a lifting mechanism 116 and a transparent pressure plate. The welding mechanism 104 is mounted on the frame 100, and the transparent pressure plate is correspondingly arranged for welding with the welding mechanism 104. The transparent pressure plate is located below the welding mechanism 104, and the welding mechanism 104 welds the workpiece 119 below the transparent pressure plate. The transparent pressure plate is located above the feeding mechanism 111, and the feeding mechanism 111 is driven by the driving mechanism 108 to approach or move away from the transparent pressure plate. A plurality of positioning molds 113 are arranged on the feeding mechanism 111, and the positioning molds 113 are used to install and position the workpiece 119. The transparent pressure plate moves in the up and down directions under the drive of the lifting mechanism 116, and the transparent pressure plate is used to press the workpiece 119 on the positioning mold 113.

[0026] Please refer to Figures 2 to 5 When in use, multiple workpieces 119 are placed on the positioning mold 113 on the feeding mechanism 111 respectively, and the driving mechanism 108 transports the feeding mechanism 111 and the workpiece 119 to the bottom of the transparent pressing plate and the welding mechanism 104. The transparent pressing plate is driven by the lifting mechanism 116 to move downward to press the workpiece 119 on the positioning mold 113, and the welding mechanism 104 welds the multiple workpieces 119 respectively. After welding is completed, the transparent pressing plate is driven by the lifting mechanism 116 to move upward to release the positioning mold 113 and the workpiece 119, and the transparent pressing plate is reset. The driving mechanism 108 moves the feeding mechanism 111 and the workpiece 119 away from one side, and the feeding mechanism 111 is reset. The workpiece 119 can be re-placed to perform the loading operation.

[0027] The utility model sets a plurality of positioning molds 113 (i.e., a multi-station setting), and the feeding mechanism 111 can weld a plurality of workpieces 119 in one transfer, thereby improving the welding efficiency. The positioning mold 113 and the light-transmitting pressing plate are set, and the workpiece 119 can be well positioned before welding, that is, fixed between the positioning mold 113 and the light-transmitting pressing plate. By placing the workpiece 119 to be welded on the feeding mechanism 111, the driving mechanism 108 automatically moves the welding feeding mechanism 111 and the workpiece 119 to be welded to the bottom of the welding mechanism 104 and the light-transmitting pressing plate, that is, into the welding area, and the welding mechanism 104 performs laser welding on the workpiece 119 to be welded. After the workpiece 119 is welded, it and the feeding mechanism 111 are moved out of the welding area together by the driving mechanism 108, and the feeding mechanism 111 is reciprocated by the driving mechanism 108, which is more convenient to use and has higher welding efficiency.

[0028] The light-transmitting pressing plate adopts a quartz glass pressing plate 117, and its functions are as follows:

[0029] Protecting lenses. Galvanometer welding systems usually use high-energy laser beams for welding. One of the main functions of the quartz glass pressure plate 117 is to protect the more expensive lenses in the galvanometer system, such as focusing lenses or scanning lenses. When the laser beam passes through the lens, the lens may be damaged due to the high energy and potential reflection of the laser. The quartz glass pressure plate 117 can absorb or disperse this potentially harmful energy, thereby extending the service life of the lens.

[0030] To prevent pollution, spatter, smoke or other pollutants may be generated during welding. These pollutants may adhere to the lens, affecting the quality of the laser beam and the welding effect. The quartz glass pressure plate 117 can effectively block these pollutants and keep the lens clean.

[0031] Improve welding quality, because the quartz glass pressure plate 117 can protect the lens and prevent contamination, it indirectly improves the welding quality. The lens remains clean and intact, which can ensure the accuracy and stability of the laser beam, thereby achieving more precise and reliable welding.

[0032] Improve system reliability: The presence of the quartz glass pressure plate 117 reduces the risk of lens damage, thereby improving the reliability and stability of the entire galvanometer welding system. This reduces downtime and maintenance costs caused by equipment failure.

[0033] Easy to replace and maintain, compared with expensive lenses, the quartz glass pressure plate 117 is usually cheaper and easier to replace. When the quartz glass pressure plate 117 is damaged or contaminated, it can be quickly replaced to ensure the continuous operation of the system.

[0034] In a preferred embodiment, the driving mechanism 108 is driven and connected to the feeding mechanism 111, and is used to drive the feeding mechanism 111 to move along the Y direction. The transparent pressure plate and the welding mechanism 104 are arranged in the Y direction. The feeding mechanism 111 is connected to a guide rail 110. A guide slider 109 is also arranged at one end of the guide rail 110 away from the feeding mechanism 111. The guide slider 109 is slidably connected to the guide rail 110.

[0035] Ensure that the feeding mechanism 111 moves accurately along the Y direction. The X direction, Y direction and Z direction refer to: left and right, front and back, and up and down directions when facing one end of the first movable door 103 of the welding machine. The driving mechanism 108 can adopt a slide rail telescopic mechanism, a linear motor, a cylinder and an electric cylinder. The cylinder pushes the piston through compressed gas to achieve linear motion and telescopic movement, and is widely used in automated production lines and mechanical equipment. The electric cylinder is driven by electricity, has a faster response speed, and is suitable for occasions with high requirements on speed and precision. The driving mechanism 108 preferably adopts an electric cylinder.

[0036] In a preferred embodiment, a positioning grid plate 118 is provided at the output end of the lifting mechanism 116. The lifting mechanism 116 drives the positioning grid plate 118 to move along the Z direction. A plurality of positioning holes are provided on the positioning grid plate 118. The properties of the positioning holes are adapted to the positioning mold body 113. The light-transmitting pressure plate is a quartz glass pressure plate 117. The quartz glass pressure plates 117 are respectively arranged at the upper ends of the positioning holes. When the positioning grid plate 118 moves downward and abuts against the feeding mechanism 111, the lower ends of the positioning holes are sleeved outside the positioning mold body 113, and the quartz glass pressure plate 117 presses the workpiece 119 against the positioning mold body 113.

[0037] The lifting mechanism 116 can adopt a slide rail telescopic mechanism, a linear motor, a cylinder, an electric cylinder, etc. Figure 4 and Figure 5 The figure shows an embodiment in which four positioning holes and four quartz glass pressure plates 117 (not shown) are arranged on a positioning grid plate 118. The four quartz glass pressure plates 117 are respectively arranged at the upper ends of the four positioning holes. The positioning grid plate 118 moves downward to abut against four positioning molds 113 on the feeding mechanism 111.

[0038] In a preferred embodiment, the welding mechanism 104 is provided with a laser head and a Z motion axis 106, the Z motion axis 106 drives the laser head to move along the Z direction, and a quartz glass pressure plate 117 is also mounted on the frame 100. The laser head can move above the quartz glass pressure plate 117, and the laser head welds the workpiece 119 below the quartz glass pressure plate 117.

[0039] The welding mechanism 104 adopts a galvanometer laser welding device, and the Z motion axis 106 can adopt an existing structure, such as an electric slide rail and a double-actuator linear motor.

[0040] In a preferred embodiment, a gantry 107 is also mounted on the frame 100 , a Z motion axis 106 is disposed on the gantry 107 , and a laser head is disposed at the output end of the Z motion axis 106 .

[0041] In a preferred embodiment, the frame 100 is provided with more than two feeding mechanisms 111 , each feeding mechanism 111 is provided with a plurality of positioning molds 113 , and the driving mechanisms 108 are drivingly connected to the feeding mechanisms 111 respectively.

[0042] A plurality of feeding mechanisms 111 are provided, and a plurality of positioning molds 113 are provided on each feeding mechanism 111. The driving machine drives the feeding mechanisms 111 to transport the workpieces 119 respectively, so that the welding device can be used more flexibly.

[0043] In a preferred embodiment, the feeding mechanism 111 also includes a feeding platform 112 and a spring 114. The feeding platform 112 is connected to the driving mechanism 108. The feeding platform 112 is connected to the positioning mold 113 through the spring 114, and the two are respectively at the lower end and the upper end of the spring 114.

[0044] The feeding platform 112 is also connected to the guide rail 110. The spring 114 is arranged so that when the quartz glass pressing plate 117 moves downward and presses against the workpiece 119 and the positioning mold body 113, a buffering effect can be played.

[0045] In a preferred embodiment, a guide column 115 is fixedly provided at the lower end of the positioning mold body 113 , a movable through hole is provided in the feeding platform 112 , and the lower end of the guide column 115 can be telescopically installed in the movable through hole of the feeding platform 112 .

[0046] When the quartz glass pressure plate 117 presses the positioning mold body 113 downward, the guide column 115 moves downward along the movable through hole (not shown) and compresses the spring 114. The guide column 115 plays a guiding role to ensure that the positioning mold body 113 moves downward in a straight line.

[0047] In a preferred embodiment, a groove whose shape matches that of the workpiece 119 is provided on the upper surface of the positioning mold 113 , and the groove opens upward; the light-transmitting pressure plate is a quartz glass pressure plate 117 .

[0048] The groove (not shown) is provided to facilitate the placement and installation of the workpiece 119 and the quartz glass pressing plate 117. The laser of the welding mechanism 104 can penetrate the quartz glass pressing plate 117, and the loss of the laser penetrating the quartz glass pressing plate 117 is small. The driving mechanism 108 can drive the feeding mechanism 111 to move below the quartz glass pressing plate 117.

[0049] In a preferred embodiment, a hood 101 is also provided on the frame 100, a welding mechanism 104 and a light-transmitting pressure plate are arranged in the hood 101, a feed port 102 is also opened at the front end of the hood 101, the feed port 102 is for the workpiece 119 to be placed on the feeding mechanism 111, and a first movable door 103 is opened and closed on the feed port 102, and the first movable door 103 is used to open or close the feed port 102.

[0050] Closing the feed port 102 can play a sealing and protective role. Opening the feed port 102 can be used for loading operations. The operator places the workpiece 119 on the positioning mold body 113. A handle is set at the front end of the first movable door 103. The left and right ends can cooperate with the machine cover 101 through the slide rail. When the feed port 102 needs to be closed, the first movable door 103 is pulled down. When it needs to be opened, the first movable door 103 is lifted up. Figure 2 When displayed, the first movable door 103 is in an open state.

[0051] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean 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, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0053] 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 limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A multi-station galvanometer welding device, characterized in that: The galvanometer welding device includes a frame, a welding mechanism, a driving mechanism, a feeding mechanism, a lifting mechanism and a light-transmitting pressure plate. The welding mechanism is mounted on the frame. The light-transmitting pressure plate is arranged corresponding to the welding mechanism. The light-transmitting pressure plate is located below the welding mechanism. The welding mechanism welds the workpiece below the light-transmitting pressure plate. The light-transmitting pressure plate is located above the feeding mechanism. The feeding mechanism is driven by the driving mechanism to approach or move away from the light-transmitting pressure plate. A plurality of positioning molds are arranged on the feeding mechanism. The positioning molds are used to install and position the workpiece. The light-transmitting pressure plate moves in the up and down directions under the drive of the lifting mechanism. The light-transmitting pressure plate is used to press the workpiece on the positioning mold.

2. The multi-station galvanometer welding device according to claim 1, characterized in that: The driving mechanism is connected to the feeding mechanism for driving the feeding mechanism to move along the Y direction. The light-transmitting pressure plate and the welding mechanism are arranged in the Y direction. The feeding mechanism is connected to a guide rail. A guide slider is also arranged at one end of the guide rail away from the feeding mechanism. The guide slider is slidably connected to the guide rail.

3. The multi-station galvanometer welding device according to claim 1, characterized in that: A positioning grid plate is provided at the output end of the lifting mechanism, and the lifting mechanism drives the positioning grid plate to move along the Z direction. A plurality of positioning holes are provided on the positioning grid plate, and the properties of the positioning holes are adapted to the positioning mold body. The light-transmitting pressure plate is a quartz glass pressure plate, and the quartz glass pressure plates are respectively arranged at the upper ends of the positioning holes. When the positioning grid plate moves downward and abuts against the feeding mechanism, the lower ends of the positioning holes are sleeved outside the positioning mold body, and the quartz glass pressure plate presses the workpiece against the positioning mold body.

4. The multi-station galvanometer welding device according to claim 1, characterized in that: The welding mechanism is provided with a laser head and a Z motion axis, the Z motion axis drives the laser head to move along the Z direction, a quartz glass pressure plate is also mounted on the frame, the laser head can move above the quartz glass pressure plate, and the laser head welds the workpiece below the quartz glass pressure plate.

5. The multi-station galvanometer welding device according to claim 4, characterized in that: A gantry is also mounted on the frame, a Z motion axis is arranged on the gantry, and a laser head is arranged at the output end of the Z motion axis.

6. The multi-station galvanometer welding device according to claim 1, characterized in that: The frame is provided with more than two feeding mechanisms, each feeding mechanism is provided with a plurality of positioning mold bodies, and the driving mechanisms are respectively connected to the feeding mechanisms in a driving manner.

7. The multi-station galvanometer welding device according to claim 1, characterized in that: The feeding mechanism also includes a feeding platform and a spring. The feeding platform is drivingly connected to the driving mechanism. The feeding platform is connected to the positioning mold through the spring, and the two are respectively at the lower end and the upper end of the spring.

8. The multi-station galvanometer welding device according to claim 7, characterized in that: A guide column is also fixedly arranged at the lower end of the positioning mold body, and a movable through hole is arranged in the feeding platform. The lower end of the guide column can be telescopically installed in the movable through hole of the feeding platform.

9. The multi-station galvanometer welding device according to claim 1, characterized in that: The upper surface of the positioning mold body is provided with a groove whose shape matches the workpiece, and the groove opens upward; the light-transmitting pressure plate is a quartz glass pressure plate.

10. The multi-station galvanometer welding device according to claim 1, characterized in that: The frame is also provided with a hood, the welding mechanism and the light-transmitting pressing plate are arranged in the hood, a feed port is also opened at the front end of the hood, the feed port is used for placing workpieces on the feeding mechanism, and a first movable door is opened and closed on the feed port, and the first movable door is used to open or close the feed port.

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