A fastening welding apparatus

Abstract

The utility model relates to a kind of fastening welding equipment, it includes positioning backplate, jig assembly, jig support plate, support plate, multiple guide pillars, the positioning backplate bottom end detachably fixed connection the jig assembly, the top of each the guide pillar is detachably fixed connection with the jig support plate, each the guide pillar is through the support plate and forms sliding fit, and extend to the below of the support plate, the bottom of each the guide pillar is equipped and is provided with baffle, the top of the baffle is with the bottom surface of the support plate between being provided with compression spring, the compression spring is set on the outer periphery of the guide pillar, when jig support plate is driven to rise, the guide pillar drives baffle to move up and compress the compression spring;When driving force is removed, compression spring pushes baffle down by springback force, drives jig support plate reset.The utility model has the effect of improving jig support plate reset reliability, equipment running stability and welding precision.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a fastening welding device. Background Technology

[0002] In the fields of mechanical equipment manufacturing and precision welding, high-precision assembly and welding of components are crucial for ensuring product performance. Especially for components such as bases and covers, the fitting accuracy directly affects welding quality, structural sealing, and overall reliability. Therefore, the technology of achieving tight fitting through mechanical transmission has become an important industry requirement.

[0003] Currently, the mainstream technical solution in the industry uses a motor and reducer as the power source. Through transmission components such as cams and guide columns, the rotational motion is converted into linear motion, which drives the fixture pallet to lift the workpiece. Mechanical extrusion force is used to achieve the fit and positioning of the base and the cover plate, providing a foundation for subsequent welding processes.

[0004] In the fields of machining and welding manufacturing, the process of welding components such as bases and cover plates to tightly fit together is extremely common. Currently, the industry widely adopts a combination of motor and reducer as the power source, which converts rotary motion into linear motion through a transmission mechanism, driving the fixture support plate to move the workpiece to achieve compression and bonding, thereby meeting the assembly requirements before welding.

[0005] The existing technical solutions mentioned above have the following defects: Although the initial fitting of the workpiece is achieved, there is a defect that uneven force leads to reset failure. Due to workpiece processing errors, assembly gaps and slight deviations in the transmission mechanism, the jig pallet is prone to bear asymmetrical loads during the lifting process, and abnormal lateral friction is generated between the guide post and the pallet. When the power source stops driving, the pallet cannot overcome the resistance by gravity alone to complete the reset, resulting in equipment operation interruption and affecting production efficiency. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fastening welding device that can improve the reliability of fixture plate reset, the stability of equipment operation and the welding accuracy.

[0007] The above-mentioned utility model objective is achieved through the following technical solution:

[0008] A fastening welding device includes a positioning plate, a fixture assembly, a fixture support plate, a support plate, and multiple guide posts. The bottom end of the positioning plate is detachably and fixedly connected to the fixture assembly. The fixture assembly is used to fix the workpiece, and the fixture support plate is used to support the fixture assembly. The device is characterized in that...

[0009] The top end of each guide post is detachably and fixedly connected to the fixture support plate. Each guide post passes through the support plate and forms a sliding fit, and extends to the bottom of the support plate. A baffle is fixedly connected to the bottom end of each guide post.

[0010] A compression spring is provided between the top of the baffle and the bottom surface of the support plate, and the compression spring is sleeved on the outer periphery of the guide post.

[0011] When the fixture support plate is driven to rise, the guide post drives the baffle to move upward and compress the compression spring;

[0012] When the driving force is released, the compression spring pushes the baffle down through the rebound force, thereby causing the fixture support plate to reset.

[0013] Through the above technical solution, the automatic reset of the jig pallet is achieved by the cooperation of the guide post and the compression spring. The sliding cooperation between the guide post and the pallet ensures the stability of the jig pallet's lifting trajectory, reduces welding position deviation, and improves welding accuracy. The baffle limits the maximum compression of the compression spring to avoid spring overload failure.

[0014] As a further technical solution of this utility model: the guide posts are set to six and are symmetrically distributed in two groups at both ends of the fixture tray and the tray, with three guide posts at each end.

[0015] Through the above technical solution, six guide columns are symmetrically distributed on the jig support plate and both ends of the support plate to ensure uniform force during lifting and lowering, avoid tilting of the jig support plate, ensure uniform force on the jig components during welding, and avoid unilateral deformation; the multi-guide column structure provides higher load-bearing capacity, and can still maintain basic equipment operation when a single guide column fails, thus improving reliability.

[0016] As a further technical solution of this utility model: the fixture assembly includes a fixture pressure plate and a fixture base.

[0017] The fixture base is provided with positioning pins around its perimeter for positioning the workpiece to be welded;

[0018] The bottom of the fixture pressure plate has a positioning hole that matches the positioning pin, and the top of it has a specific groove for accommodating the workpiece to be welded.

[0019] Through the above technical solution, the positioning pin on the fixture base cooperates with the positioning hole on the fixture pressure plate to accurately position the workpiece to be welded, ensuring the accuracy of the welding position and thus improving the welding quality; the specific groove on the top of the fixture pressure plate can guide the flow of welding material, making the welding more uniform and further improving the welding quality.

[0020] As a further technical solution of this utility model: a groove is provided on the fixture support plate, and the fixture seat is embedded in the groove.

[0021] The above technical solution allows the fixture seat to be embedded in the groove of the fixture support plate, which can further improve the stability of the fixture assembly, prevent the fixture seat from shifting during the welding process, and thus ensure the welding quality.

[0022] As a further technical solution of this utility model: the jig support plate has a first mounting hole at both ends that matches each of the guide posts, and the top end of each guide post is detachably and fixedly connected to the first mounting hole.

[0023] Through the above technical solution, the guide column and the fixture support plate are detachably and fixedly connected through the first mounting hole, which facilitates the installation and removal of the guide column and makes the maintenance and repair of the equipment easier.

[0024] As a further technical solution of this utility model: a second mounting hole is provided on the tray corresponding to the position of the first mounting hole, and the diameter of the second mounting hole is larger than that of the first mounting hole, forming a sliding channel for the guide post.

[0025] Through the above technical solution, the second mounting hole of the tray and the guide post form a clearance fit, ensuring that the guide post moves smoothly and without obstruction, and reducing friction loss; the larger diameter second mounting hole provides lateral buffer space for the guide post, forming a sliding channel for the guide post, so that the guide post can slide freely on the tray, ensuring smooth lifting and lowering of the fixture tray.

[0026] As a further technical solution of this utility model: a guide sleeve is provided on the tray corresponding to the position of each guide post, the guide sleeve is fixed in the second mounting hole by a snap ring, and the guide post and the guide sleeve are slidably engaged.

[0027] Through the above technical solution, the sliding cooperation between the guide sleeve and the guide post improves the movement accuracy of the guide post, ensuring the vertical lifting and lowering of the fixture tray. This ensures that the fixture tray can maintain vertical movement during the lifting and lowering process, avoiding tilting or shaking, thereby improving the welding quality. At the same time, the retaining spring firmly locks the guide sleeve in the tray, preventing the guide sleeve from falling off and improving the safety of equipment operation.

[0028] As a further technical solution of this utility model, it also includes a power transmission component and a power source, wherein the power transmission component includes a top block, a cam raceway seat, and a cam;

[0029] The top block is composed of a T-shaped structure formed by an integrally molded horizontal plate and a vertical plate. The top surface of the horizontal plate abuts against the bottom surface of the fixture support plate. The vertical plate is fixedly connected to the cam raceway seat. The side of the cam raceway seat is provided with a square groove.

[0030] The edge of the cam is provided with a roller, which is embedded in a square groove to form a sliding fit.

[0031] The power source drives the cam to rotate, and the rotational motion is converted into the linear motion of the top block through the cooperation of the roller and the square groove, thereby driving the jig pallet to rise and fall.

[0032] Through the above technical solution, the power transmission component can convert the rotational motion of the power source into the linear lifting motion of the jig pallet, realizing automated welding operations and improving production efficiency; through the cooperation of the rollers and the square groove, the lifting process of the jig pallet is ensured to be smooth, without impact or jamming.

[0033] As a further technical solution of this utility model: the positioning plate is provided with a workpiece welding port, the workpiece welding port is adapted to the contour of the workpiece to be welded, and multiple through holes are evenly distributed around the positioning plate, the through holes are used to realize the detachable fixing of the positioning plate.

[0034] Through the above technical solution, the workpiece weld joint is matched with the workpiece contour, ensuring accurate exposure of the welding area and avoiding welding deviation and missed welding; the through holes around the positioning plate make it easy to detachably fix the positioning plate to the equipment with bolts and other connecting parts, supporting quick adjustment of position or replacement, and adapting to workpieces of different sizes.

[0035] In summary, this utility model has at least one of the following beneficial technical effects:

[0036] 1. This utility model discloses a fastening welding device, which achieves flexible adaptation of the device to different workpieces, precise guidance of the fixture plate and automatic reset by means of detachable connection between the positioning plate and the fixture assembly, sliding cooperation between the guide post and the fixture support plate and the support plate, and the reset action of the compression spring, thereby improving welding accuracy and the automation level of the device.

[0037] 2. This utility model discloses a fastening welding device, which achieves stable installation of the fixture components and precise positioning of the workpiece by means of six guide pillars evenly distributed on the fixture support plate and both ends of the support plate, the groove cooperation between the fixture seat and the fixture support plate, and the positioning pin and positioning hole cooperation between the fixture seat and the fixture pressure plate, thereby ensuring the stability of the welding process and the welding quality.

[0038] 3. This utility model discloses a fastening welding device, which converts rotary motion into linear motion through a cam-roller mechanism in the power transmission assembly, high-precision sliding fit between the guide post and the guide sleeve, and welding joints on the positioning plate that are adapted to the workpiece contour and through holes evenly opened around the perimeter, thereby realizing stable lifting and lowering of the fixture support plate, high-precision guidance of the guide post, and flexible installation and precise welding of the positioning plate, thus meeting the requirements of the welding process for motion and positioning. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of a fastening and welding equipment according to Embodiment 1 of this utility model.

[0040] Figure 2 This is an exploded view of a first embodiment of a fastening welding device according to the present invention.

[0041] Figure 3 This is a right view of a first embodiment of a fastening and welding device according to the present invention.

[0042] Figure 4 This is a schematic diagram of a guide post assembly in a fastening welding device according to the present invention.

[0043] Figure 5 This is a schematic diagram of the cam-roller transmission mechanism in a fastening welding device according to the present invention.

[0044] Reference numerals: 1. Positioning plate; 2. Fixture pressure plate; 3. Fixture seat; 4. Fixture support plate; 5. Support plate; 6. Compression spring; 7. Guide post; 71. Baffle; 8. Top block; 9. Cam raceway seat; 91. Square groove; 10. Cam; 101. Roller; 11. Power source; 12. Guide sleeve; 13. Snap ring. Detailed Implementation

[0045] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] Example 1:

[0049] Reference Figure 1 , Figure 2 and Figure 3 The fastening welding equipment provided by the present invention includes a positioning plate 1, a fixture assembly, a fixture support plate 4, a support plate 5, and multiple guide posts 7. The bottom end of the positioning plate 1 is detachably and fixedly connected to the fixture assembly, the fixture assembly is used to fix the workpiece, and the fixture support plate 4 is used to support the fixture assembly.

[0050] Reference Figure 3 and Figure 4 Each guide post 7 has its top end detachably and threadedly fixed to the fixture support plate 4. The guide post 7 passes through the support plate 5 and forms a sliding fit, extending to the bottom of the support plate 5. A baffle plate 71 is fixedly connected to the bottom end of each guide post 7, which can be connected by threads. A compression spring 6 is provided between the bottom surface of the support plate 5 and the top end of the baffle plate 71. The top end of the compression spring 6 abuts against the bottom surface of the support plate 5, and the bottom end of the compression spring 6 abuts against the top end of the baffle plate 71. The compression spring 6 is sleeved on the outer periphery of the guide post 7. When the fixture support plate 4 is driven to rise, the guide post 7 drives the baffle plate 71 to move upward and compress the compression spring 6. When the driving force is released, the compression spring 6 pushes the baffle plate 71 downward through the rebound force, thereby driving the fixture support plate 4 to return to its original position.

[0051] The guide post 7 is made of high-strength alloy steel, and its surface is hardened and chrome-plated to improve its wear resistance and corrosion resistance, extending its service life. The compression spring 6 can be made of 60Si2MnA spring steel, with a spring constant k = 80 N / mm and a pre-compression of 10 mm. A threaded adjustment mechanism is provided at the bottom of the guide post 7 to adjust the position of the baffle 71 and control the spring preload. A buffer rubber ring is installed between the baffle 71 and the support plate 5 to absorb the impact of the compression spring 6 returning to its original position; a spring preload adjustment nut is provided to adjust the return speed and force as needed.

[0052] Furthermore, six guide pillars 7 are provided and evenly distributed at both ends of the fixture pallet 4 and the pallet 5. Three guide pillars 7 are provided at each end, and the three guide pillars 7 are arranged at equal intervals at both ends of the fixture pallet 4 and the pallet 5, so as to ensure that the fixture pallet 4 is subjected to uniform force during the lifting and lowering process.

[0053] The fixture assembly includes a fixture pressure plate 2 and a fixture base 3. The fixture base 3 is equipped with locating pins around its perimeter for precise positioning of the workpiece to be welded. The bottom of the fixture pressure plate 2 has locating holes that match the locating pins, and its top has a specific groove for accommodating the workpiece to be welded. The number and position of the locating pins can be adjusted according to the shape and size of the workpiece to be welded to meet the positioning requirements of different workpieces. The shape and size of the specific groove can be customized according to the welding process and the requirements of the workpiece to be welded, for example, using V-shaped, U-shaped, or trapezoidal grooves to meet different welding needs.

[0054] The fixture support plate 4 has a groove into which the fixture seat 3 can be inserted. The shape and size of the groove in the fixture support plate 4 precisely match the shape and size of the fixture seat 3 to ensure that the fixture seat 3 can be tightly inserted into the groove. After the fixture seat 3 is inserted, its upper surface is flush with the upper surface of the fixture support plate 4 to facilitate cooperation with the fixture pressure plate 2. In addition, a shock-absorbing pad, such as a rubber pad or a sponge pad, can be provided at the bottom of the groove in the fixture support plate 4 to reduce the impact of vibrations generated during welding on the fixture components and the workpiece, thereby further improving the welding quality.

[0055] The fixture support plate 4 has first mounting holes at both ends that match each guide post 7. The top end of each guide post 7 is detachably and fixedly connected to the first mounting hole. The inner wall of the first mounting hole is threaded, and the top end of the guide post 7 is also threaded accordingly. The threaded connection enables detachable fixing, making the connection more secure and reliable. In addition, a sealing gasket, such as a rubber gasket or a metal gasket, can be provided at the connection between the first mounting hole and the guide post 7 to prevent dust, impurities, etc. from entering the connection part and affecting the normal operation of the equipment.

[0056] The support plate 5 has a second mounting hole with a larger diameter corresponding to the first mounting hole, forming a sliding channel with the guide post 7 through a clearance fit. A lubrication layer can also be provided on the inner wall of the second mounting hole, such as by applying lubricating oil or installing a self-lubricating bushing, to reduce friction between the guide post 7 and the support plate 5, further improving the smoothness of the guide post's sliding and the operational stability of the equipment. Dustproof sealing rings are installed at both ends of the second mounting hole to prevent welding slag from entering.

[0057] Reference Figure 4 A guide sleeve 12 is also provided on the pallet 5 corresponding to the position of each guide post 7. The guide post 7 makes linear reciprocating motion within the guide sleeve 12, realizing the lifting and guiding of the fixture pallet 4. The guide sleeve 12 is fixed in the second mounting hole by a snap ring 13. The snap ring 13 can be made of 65Mn spring steel with a nickel-plated surface for durable elasticity. The guide sleeve 12 is made of wear-resistant material, such as copper alloy or engineering plastic, to improve its wear resistance and service life. Several annular grooves are provided on the inner surface of the guide sleeve 12. These grooves are filled with grease to further reduce the friction between the guide post 7 and the guide sleeve 12 and improve the operating efficiency of the equipment.

[0058] Reference Figure 3 and Figure 5This equipment also includes a power transmission assembly and a power source 11. The power transmission assembly consists of a top block 8, a cam raceway seat 9, and a cam 10. The top block 8 is a T-shaped structure composed of an integrally formed horizontal plate and a vertical plate. The top surface of the horizontal plate contacts and abuts against the bottom surface of the fixture support plate 4. This design ensures uniform load distribution and reduces stress concentration and improves reliability compared to a point contact structure. The vertical plate is connected to the top of the cam raceway seat 9 by bolts or welding. When the cam raceway seat 9 drives the top block 8 to move linearly up and down, the top block 8 transmits the driving force evenly to the fixture support plate 4 through the horizontal plate. The cam raceway seat 9 has a square groove 91 on its side and a groove on its top surface that engages with the vertical plate of the top block 8. The top block 8 is fixedly connected by threads. The roller 101 on the edge of the cam 10 is embedded in the square groove 91 to form a sliding fit. When the power source 11 drives the cam 10 to rotate, the roller 101 is constrained by the square groove 91 and can only slide linearly along the groove, thus converting the rotational motion of the cam 10 into linear motion. The power source 11 consists of a motor and a reducer, which can precisely control the rotation angle and speed of the cam 10. Through the cooperation of the roller 101 and the square groove 91, the precisely controlled rotational motion is converted into the linear motion of the top block 8, thereby realizing the precise lifting and lowering of the fixture tray 4.

[0059] The positioning plate 1 has a customized workpiece welding port, the shape and size of which strictly match the contour of the workpiece to be welded. It can be designed as round, square or irregular shape according to actual needs, ensuring accurate exposure of the welding area and avoiding welding deviation and incomplete welding. The positioning plate 1 can be made of 316L stainless steel with a sandblasted surface, which combines corrosion resistance and surface roughness to effectively prevent welding spatter adhesion. Multiple through holes are evenly distributed around the positioning plate 1. The inner walls of the through holes can be tapped and coated with thread-locking adhesive, which can achieve detachable fixation while effectively preventing bolt loosening and ensuring the stability of the positioning plate 1 during the welding process.

[0060] This utility model discloses the assembly process of a fastening and welding fixing device:

[0061] Place the jig plate 4 on a suitable workbench. Install six guide posts 7 in the first mounting holes at both ends of the jig plate 4 by means of threaded connection or other detachable means, ensuring that the top of the guide post 7 is firmly fixed to the bottom of the jig plate 4 and that each guide post 7 is perpendicular to the jig plate 4.

[0062] A second mounting hole is made on the tray 5 at the position corresponding to the first mounting hole. The guide sleeve 12 is fixed in the second mounting hole by the snap ring 13. Then the tray 5 is installed in the corresponding position so that the guide post 7 passes through the guide sleeve 12 of the tray 5 to form a sliding fit. A baffle 71 is installed at the bottom of each guide post 7.

[0063] The inner diameter of the compression spring 6 is larger than the diameter of the guide post 7, so that the compression spring 6 can be fitted around the outer circumference of the guide post 7. The compression spring 6 is located between the bottom surface of the support plate 5 and the top of the baffle 71.

[0064] The bottom end of the top block 8 is fixedly connected to the top end of the cam raceway seat 9. A roller 101 is installed on the edge of the cam 10. The cam raceway seat 9 is installed in a suitable position so that the roller 101 of the cam 10 is embedded in the square groove 91 on the side of the cam raceway seat 9 to form a sliding fit. The power source 11 (consisting of a motor and a reducer) is connected to the cam 10 to ensure that the power source 11 can drive the cam 10 to rotate.

[0065] Positioning pins are installed around the jig base 3. Positioning holes matching the positioning pins are made at the bottom of the jig pressure plate 2, and a specific groove is made at the top. A groove is made on the jig support plate 4, and the jig base 3 is embedded into the groove.

[0066] The positioning plate 1 is detachably fixed to the corresponding position of the equipment through connecting parts such as through holes and bolts, so that the bottom end of the positioning plate 1 is detachably fixed to the fixture assembly, and the workpiece welding joint on the positioning plate 1 is matched with the contour of the workpiece to be welded.

[0067] The working process of a fastening and welding fixing device according to this utility model:

[0068] The operator places the workpiece to be welded into the positioning pins around the base and cover plate on the jig seat 3, and then places the jig pressure plate 2 on the jig seat 3, so that the positioning hole at the bottom of the jig pressure plate 2 is aligned with the positioning pin on the jig seat 3, thus completing the initial fixation of the workpiece.

[0069] Place the fixture with the product in the groove of the fixture tray 4 and start the equipment. The power source 11 starts to operate, driving the cam 10 to rotate. The roller 101 on the cam 10 moves in the square groove 91 of the cam raceway seat 9, converting the rotational motion of the cam 10 into the up-and-down linear motion of the top block 8.

[0070] The top block 8 lifts the fixture support plate 4, which moves precisely up and down under the fixation of the guide posts 7 at both ends. Since the other end of the guide post 7 passes through the guide sleeve 12 of the second mounting hole in the support plate 5, and a compression spring 6 is provided between the bottom end of the support plate 5 and the end baffle 71 of the guide post 7, during the upward movement of the fixture support plate 4, the guide post 7 moves upward, and the end baffle 71 of the guide post 7 moves upward as well, compressing the compression spring 6.

[0071] The fixture support plate 4 rises with the entire fixture part until it contacts the positioning plate 1, tightly fitting the two products together. At this time, the laser welding equipment is started to perform welding operations on the tightly fitted workpieces.

[0072] After welding is completed, the power source 11 stops driving, the cam 10 stops rotating, and the lifting force is released. As the pressure on the compression spring 6 gradually decreases until it disappears, the compression spring 6 rebounds. The bottom end of the compression spring 6 contacts the end baffle 71 of the guide post 7, and the top end contacts the bottom surface of the support plate 5. The compression spring 6 pushes the baffle 71 downward, and the baffle 71 drives the guide post 7 to move downward. Since the other end of the guide post 7 is fixed to the fixture support plate 4, it drives the fixture support plate 4 to move back, realizing the reset of the fixture support plate 4 for the next welding operation.

[0073] The implementation principle of this utility model is as follows: The elastic reset system stores energy during the lifting process through the combination design of guide post 7 and compression spring 6, and accurately returns to its original position when the power is released, thus completely solving the problem of jig plate 4 being stuck during reset; the symmetrical layout of the six guide posts 7 forms a stable guiding structure, which, together with the adjustable spring preload, ensures welding accuracy; the cam 10 and roller 101 transmission mechanism convert the motor rotational motion into linear motion through the square slot, pushing the top block 8 to achieve controllable lifting and lowering of jig plate 4.

[0074] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fastening welding device, comprising a positioning plate (1), a fixture assembly, a fixture support plate (4), a support plate (5), and a plurality of guide posts (7), wherein the bottom end of the positioning plate (1) is detachably and fixedly connected to the fixture assembly, the fixture assembly is used to fix the workpiece, and the fixture support plate (4) is used to support the fixture assembly, characterized in that, The top end of each guide post (7) is detachably and fixedly connected to the fixture support plate (4). Each guide post (7) penetrates the support plate (5) and forms a sliding fit, and extends to the bottom of the support plate (5). A baffle plate (71) is fixedly connected to the bottom end of each guide post (7). A compression spring (6) is provided between the top of the baffle (71) and the bottom surface of the support plate (5), and the compression spring (6) is sleeved on the outer periphery of the guide post (7); When the fixture support plate (4) is driven to rise, the guide post (7) drives the baffle (71) to move upward and compress the compression spring (6); When the driving force is released, the compression spring (6) pushes the baffle (71) down through the rebound force, thereby causing the fixture support plate (4) to reset.

2. The fastening welding equipment according to claim 1, characterized in that, The guide posts (7) are set to six and are symmetrically distributed in two groups at both ends of the fixture plate (4) and the plate (5), with three guide posts (7) set at each end.

3. The fastening welding equipment according to claim 1, characterized in that, The fixture assembly includes a fixture pressure plate (2) and a fixture base (3). The fixture base (3) is provided with positioning pins around its perimeter for positioning the workpiece to be welded; The fixture pressure plate (2) has a positioning hole at the bottom that matches the positioning pin, and a specific groove at the top for accommodating the workpiece to be welded.

4. The fastening welding equipment according to claim 3, characterized in that, The fixture support plate (4) has a groove, and the fixture seat (3) is embedded in the groove.

5. The fastening welding equipment according to claim 3, characterized in that, The fixture support plate (4) has first mounting holes at both ends that match each of the guide posts (7), and the top end of each guide post (7) is detachably and fixedly connected to the first mounting hole.

6. The fastening welding equipment according to claim 5, characterized in that, A second mounting hole is provided on the tray (5) at the position corresponding to the first mounting hole. The diameter of the second mounting hole is larger than that of the first mounting hole, forming a sliding channel for the guide post (7).

7. A fastening welding device according to claim 6, characterized in that, A guide sleeve (12) is provided in the second mounting hole. Both ends of the guide sleeve (12) are fixed in the second mounting hole by snap rings (13). The guide post (7) passes through the guide sleeve (12) and slides with the guide sleeve (12).

8. The fastening welding equipment according to claim 1, characterized in that, It also includes a power transmission assembly and a power source (11), wherein the power transmission assembly includes a top block (8), a cam raceway seat (9) and a cam (10); The top block (8) is a T-shaped structure composed of an integrally formed horizontal plate and a vertical plate. The top surface of the horizontal plate abuts against the bottom surface of the fixture support plate (4), and the vertical plate is fixedly connected to the cam raceway seat (9). The cam raceway seat (9) has a square groove (91) on its side; The cam (10) is provided with a roller (101) on its edge, and the roller (101) is embedded in the square groove (91) to form a sliding fit; The power source (11) drives the cam (10) to rotate, and the rotational motion is converted into the linear motion of the top block (8) through the cooperation of the roller (101) and the square groove (91), thereby driving the jig plate (4) to rise and fall.

9. A fastening welding device according to claim 1, characterized in that, The positioning plate (1) has a workpiece welding port, which is adapted to the outline of the workpiece to be welded. Multiple through holes are evenly opened around the positioning plate (1), which are used to realize the detachable fixing of the positioning plate (1).

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