A fixed welding device for connector

Abstract

The present invention discloses a connector fixing and welding device, including a supporting device, a bearing device and a fixing and clamping device, the bearing device includes a middle bearing plate, a side bearing plate and an end bearing support arm, the two ends of the two side bearing plates are respectively rotatably connected with the two ends of the two end bearing support arms to form a parallelogram structure, the two ends of the middle bearing plate are respectively rotatably connected with the middle of the two end bearing support arms, and the middle bearing plate is installed above the supporting device; the fixing and clamping device is similar in structure to the bearing device and includes a height adjustment stud for adjusting the distance between the middle bearing plate and the middle clamping plate. The present invention utilizes the parallelogram structure of the bearing device and the fixing and clamping device to realize the simultaneous fixing, installation and welding of multiple connectors, significantly improves the welding efficiency of connector pins, speeds up the production schedule, and can meet the fixing, installation and pin welding requirements of connectors of different models and sizes.

Description

Technical Field

[0001] The invention relates to an auxiliary device in connector installation application, in particular to a connector fixing welding device. Background Art

[0002] Connectors (also called electrical connectors or electrical connectors) as an electrical component have become an indispensable part of various electronic devices in recent years, especially power filters. With the continuous update of user needs, connectors as its components have been widely used. Figure 1 As shown, the connector 1 includes a columnar plug-in column 12 and a flange 11 , the pin 10 is arranged in the plug-in column 12 , and the flange 11 is sleeved on the plug-in column 12 .

[0003] In order to meet the design requirements and realize the function of the power filter, it is necessary to match several pins of the connector with the internal circuits of the power filter one by one to achieve reliable electrical connection. One way is to weld one end of the wire to the pin of the connector and the other end of the wire to the circuit of the power filter to form an electrical connection. However, when welding the connector pins, if there is no corresponding connector fixing welding device, direct welding is adopted. The center of gravity of the connector will be unstable and it will collapse easily, or the connector will be displaced when the soldering iron tip lightly touches the pin. Not only is the operation extremely inconvenient, but it also affects the welding quality. In addition, the high temperature during welding will be transmitted to the connector housing. If it is accidentally touched, it will also burn the welder. Therefore, when welding the connector pins, it is necessary to use a corresponding special fixed welding device to ensure reliable welding quality and avoid scalding the operator.

[0004] The traditional fixed welding device of the connector is generally a specific structure designed for a specific model, and can only fix one connector at a time. However, the connectors used for power filters are of various models and sizes, so different fixed welding devices are needed to meet the fixing and welding requirements of connectors of different models. Although this can complete the welding of connector pins, it takes a certain amount of time from design to manufacturing of a dedicated connector welding device, which will affect the production schedule. In addition, a one-to-one dedicated fixed welding device will increase material costs, take up more storage space, be very inconvenient to manage, and increase labor management costs. Summary of the invention

[0005] The purpose of the present invention is to provide a fixing welding device which can simultaneously fix connectors of different sizes in order to solve the above-mentioned problem.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A fixed welding device for a connector, comprising a supporting device, a bearing device and a fixed clamping device, wherein the bearing device comprises a transverse middle bearing plate, two transverse side bearing plates and two transverse end bearing arms, the two ends of the two side bearing plates are respectively rotatably connected to the two ends of the two end bearing arms to form a parallelogram structure, the two ends of the middle bearing plate are respectively rotatably connected to the middle of the two end bearing arms, the middle bearing plate and the two side bearing plates are parallel to each other, and the middle bearing plate is installed above the supporting device; the fixed clamping device comprises a transverse middle clamping plate, two transverse side clamping plates, Two horizontal end clamping arms and a vertical height adjustment stud, the two ends of the two side clamping plates are respectively rotatably connected to the two ends of the two end clamping arms to form a parallelogram structure, the two ends of the middle clamping plate are respectively rotatably connected to the middle of the two end clamping arms, the middle clamping plate and the two side clamping plates are parallel to each other, the height adjustment stud is installed between the middle bearing plate and the middle clamping plate and is used to adjust the distance between the middle bearing plate and the middle clamping plate, the middle clamping plate, the side clamping plate and the end clamping arms are all located above the middle bearing plate, the side bearing plate and the end bearing arms.

[0008] In the above structure, the supporting device is used as the load-bearing foundation of the entire device, and at the same time provides a certain height space for the installation of the connector; the bearing device is used to place the connector, and utilizes the structure that the outer diameter of the connector's plug-in column is smaller than the outer diameter of the flange to realize the rapid placement of the connector; the fixed clamping device is used to press the flange of the connector downward, and cooperate with the bearing device to realize the clamping and fixing of the connector; the bearing device and the fixed clamping device both adopt a parallelogram structure to form a quick adjustment structure for the installation gap width of the connector; the height adjustment stud is used to adjust the distance between the middle bearing plate and the middle clamping plate, so as to facilitate the operation of clamping the connector after placement and meet the installation requirements of connectors of different sizes.

[0009] Preferably, in order to achieve a better fitting effect between the bearing device and the fixed clamping device so as to better clamp the flange of the connector, the middle bearing plate and the two side bearing plates are both located above the two end bearing arms, and the upper surface of the middle bearing plate is at the same height as the upper surfaces of the two side bearing plates; the middle clamping plate and the two side clamping plates are both located below the two end clamping arms, and the lower surface of the middle clamping plate is at the same height as the lower surfaces of the two side clamping plates.

[0010] Preferably, in order to facilitate the rapid adjustment of the spacing between the two sides of the middle load-bearing plate and the two side load-bearing plates, as well as the spacing between the two sides of the middle clamping plate and the two side clamping plates, and to quickly fix the load-bearing device or the clamping device, six load-bearing connection positions are formed between the two ends of the two side load-bearing plates and the two ends of the two end load-bearing arms, and between the two ends of the middle load-bearing plate and the middle of the two end load-bearing arms. Five vertical load-bearing connection pins respectively pass through the corresponding through holes of five of the load-bearing connection positions, and both ends of the load-bearing connection pins are provided with pin caps with larger diameters. The screw rod of the vertical load-bearing connecting bolt passes through the corresponding through hole of another load-bearing connecting position and is connected to the nut; six clamping connection positions are formed between the two ends of the two side clamping plates and the two ends of the two end clamping arms, and between the two ends of the middle clamping plate and the middle of the two end clamping arms. Five vertical clamping connection pins respectively pass through the corresponding through holes of five of the clamping connection positions and both ends of the clamping connection pins are provided with pin caps with larger diameters. The screw rod of a vertical clamping connection bolt passes through the corresponding through hole of another clamping connection position and is connected to the nut. When in use, it is only necessary to loosen the nuts corresponding to the load-bearing connection bolts or the clamping connection bolts, and the spacing between the two sides of the middle load-bearing plate and the two side load-bearing plates or the spacing between the two sides of the middle clamping plate and the two side clamping plates can be quickly changed by using the principle of synchronous movement of the sides of the parallelogram; in the process of changing the parallelogram, the six load-bearing connection positions or the six clamping connection positions change synchronously and will rotate, so fixing one of the connection positions so that it cannot rotate can quickly fix the load-bearing device or the clamping device. In practical applications, one of the pin caps can be welded to the connection pin after the corresponding connection pin passes through the corresponding center hole.

[0011] Preferably, in order to achieve a better fixing effect, the load-bearing connection position corresponding to the load-bearing connection bolt is one of the four load-bearing connection positions formed between the two ends of the two side load-bearing plates and the two ends of the two end load-bearing arms; the clamping connection position corresponding to the clamping connection bolt is one of the four clamping connection positions formed between the two ends of the two side clamping plates and the two ends of the two end clamping arms. In the process of changing the parallelogram, the angle change of its four corners is greater than the angle change of the middle of each side, so it is easier to fix one of the corners so that it cannot rotate.

[0012] Preferably, in order to realize the rapid adjustment of the spacing between the middle bearing plate and the middle pressure plate, a bearing plate center hole is provided at the center position of the middle bearing plate, a pressure plate center hole is provided at the center position of the middle pressure plate, an internal thread is provided on the hole wall of the pressure plate center hole, the height adjustment stud comprises a screw rod, a nut is provided at the upper end of the screw rod, an external thread is provided in the middle and upper section of the screw rod for matching with the internal thread of the center hole of the pressure plate, a limiting plate with a larger diameter is provided at the lower end and the lower section near the lower end of the screw rod, the screw rod passes through the center hole of the pressure plate and the center hole of the bearing plate, the nut is located above the middle pressure plate, and the two limiting plates are respectively located above and below the middle bearing plate. In actual applications, the two limit plates are welded to the screw after the screw passes through the center hole of the clamping plate and the center hole of the load-bearing plate. The two limit plates make the bolt only rotate relative to the middle load-bearing plate but not move axially. In the process of rotating the bolt, the middle clamping plate will move vertically due to the cooperation between the external thread of the screw and the internal thread of the center hole of the clamping plate, thereby realizing the function of quickly adjusting the distance between the middle load-bearing plate and the middle clamping plate.

[0013] Furthermore, in order to make the vertical movement of the middle clamping plate more stable and smooth, vertical limit guide holes are respectively provided at both ends of the middle clamping plate, and vertical limit guide shafts are respectively provided at the upper parts of both ends of the middle supporting plate, and the two limit guide shafts pass through the two limit guide holes respectively.

[0014] Preferably, in order to prevent the middle pressing plate from moving upward and disengaging from the limiting guide shaft, a shaft cap with a larger diameter is provided at the upper end of the limiting guide shaft.

[0015] Preferably, in order to facilitate the placement of the connector, the maximum distance between the two sides of the middle clamping plate and the two side clamping plates is greater than the maximum distance between the two sides of the middle bearing plate and the two side bearing plates.

[0016] Preferably, in order to facilitate the quick connection between the middle bearing plate and the supporting device, the supporting device includes a horizontal supporting seat and a vertical supporting column, two supporting columns are arranged at both ends of the supporting seat, and vertical mounting holes are respectively provided at both ends of the middle bearing plate, and the upper sections of the two supporting columns are respectively placed in the two mounting holes.

[0017] Preferably, in order to leave sufficient vertical space for installing the connector, the support column includes a lower support column and an upper support column, the outer diameter of the upper support column is smaller than the outer diameter of the lower support column, the lower ends of the two lower support columns are respectively connected to the two ends of the support seat, the lower ends of the two upper support columns are respectively connected to the upper ends of the two lower support columns, and the two upper support columns are respectively placed in the two mounting holes.

[0018] The beneficial effects of the present invention are:

[0019] The present invention utilizes the parallelogram structure of the bearing device and the fixing and pressing device, and can quickly adjust the spacing between the two sides of the middle bearing plate and the two side bearing plates, as well as the spacing between the two sides of the middle pressing plate and the two side pressing plates, so that the plug-in columns of multiple connectors can be placed between the two sides of the middle bearing plate and the two side bearing plates and the load is carried by the flange of the connector, and the middle pressing plate and the side pressing plate are pressed downward to press the flange of the connector, so as to realize the rapid fixing and installation of multiple connectors, realize the simultaneous fixing and installation and welding of multiple connectors, significantly improve the welding efficiency of connector pins, and speed up production. The progress is fast and convenient, and the spacing between the two sides of the middle load-bearing plate and the two side load-bearing plates, as well as the spacing between the two sides of the middle clamping plate and the two side clamping plates, can be adjusted to meet the fixed installation and pin welding requirements of connectors of different models and sizes, saving time, material cost and storage space for making special fixed welding devices for connectors of specific sizes, and reducing labor management costs. In addition, the fixed welding device of the connector described in the present invention can be installed quickly and conveniently, and the operation is simple, which is convenient for welding, and can indirectly improve the welding quality. Moreover, the welding personnel will not be scalded due to direct contact with the connector during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereogram of the connector;

[0021] Figure 2 It is a three-dimensional exploded view of the fixing welding device of the connector of the present invention before assembly;

[0022] Figure 3 is a stereoscopic diagram of the assembled fixing welding device of the connector of the present invention;

[0023] Figure 4 It is a stereoscopic diagram of the fixing welding device of the connector of the present invention when in use. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings:

[0025] like Figure 2 and Figure 3As shown, the fixed welding device of the connector of the present invention includes a supporting device 4, a bearing device 3 and a fixed pressing device 2, the bearing device 3 includes a transverse middle bearing plate 36, two transverse side bearing plates 30 and two transverse end bearing arms 33, the two ends of the two side bearing plates 30 are respectively rotatably connected with the two ends of the two end bearing arms 33 to form a parallelogram structure, the two ends of the middle bearing plate 36 are respectively rotatably connected with the middle of the two end bearing arms 33, the middle bearing plate 36 is parallel to the two side bearing plates 30, and the middle bearing plate 36 is installed above the supporting device 4; the fixed pressing device 2 includes a transverse middle pressing plate 25, two transverse side pressing plates The clamping plate 24, two horizontal end clamping arms 22 and the vertical height-adjusting stud 26, the two ends of the two side clamping plates 24 are respectively rotatably connected with the two ends of the two end clamping arms 22 to form a parallelogram structure, the two ends of the middle clamping plate 25 are respectively rotatably connected with the middle of the two end clamping arms 22, the middle clamping plate 25 and the two side clamping plates 24 are parallel to each other, the height-adjusting stud 26 is installed between the middle bearing plate 36 and the middle clamping plate 25 and is used to adjust the distance between the middle bearing plate 36 and the middle clamping plate 25, the middle clamping plate 25, the side clamping plate 24 and the end clamping arms 22 are all located above the middle bearing plate 36, the side bearing plate 30 and the end bearing arms 33.

[0026] like Figure 1-Figure 4 As shown, the basic working principle of the fixing welding device of the connector of the present invention is as follows:

[0027] Device pre-adjustment: first rotate and raise the stud 26 to make the fixed clamping device 2 a certain distance away from the load-bearing device 3, and the distance must be greater than the thickness of the flange 11 of the connector 1, and adjust the distance between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30, as well as the distance between the two sides of the middle clamping plate 25 and the two side clamping plates 24, so that the distance between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30 is greater than the outer diameter of the plug-in column 12 of the connector 1 and smaller than the distance between the two sides of the middle clamping plate 25 and the two side clamping plates 24 and at the same time smaller than the width of the flange 11 of the connector 1, so as to facilitate the placement of the connector 1.

[0028] Install the connector: After the device is pre-adjusted and fixed, the welding surface of the pin 10 of the connector 1 faces upward, and then the plug-in column 12 of the connector 1 passes from top to bottom through the gap between the middle load-bearing plate 36 and one of the side load-bearing plates 30 and uses the flange 11 to bear the weight. In this way, continue to place other multiple connectors 1 one by one in the gap between the middle load-bearing plate 36 and the side load-bearing plate 30 of the load-bearing device 3. After completing the placement of multiple connectors 1, the spacing between the two sides of the middle clamping plate 25 and the two side clamping plates 24 is roughly the same as the spacing between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30. Then, rotate and raise the stud 26 to make the fixed clamping device 2 close to the load-bearing device 3 until the middle clamping plate 25 presses the top of the flanges 11 of the multiple connectors 1. This completes the installation and fixation of the multiple connectors 1, and then the welding ends of the pins 10 of the multiple connectors 1 can be reliably welded.

[0029] Removing the connector: After completing the welding of the pins 10 of the connector 1, rotate the height-adjusting stud 26 to move the fixing and clamping device 2 away from the bearing device 3 until the connector 1 can be easily removed. In this way, the installation, fixing and welding of multiple connectors 1 can be completed conveniently, quickly and efficiently at one time.

[0030] like Figure 1-Figure 4 As shown, a variety of more optimized specific structures of the present invention are also disclosed below. According to actual needs, one or more of the following structures can be superimposed and combined with the above structure to form a more optimized technical solution.

[0031] In order to achieve a better fitting effect between the bearing device 3 and the fixed clamping device 2 so as to better clamp the flange 11 of the connector 1, the middle bearing plate 36 and the two side bearing plates 30 are both located above the two end bearing arms 33, and the upper surface of the middle bearing plate 36 is at the same height as the upper surfaces of the two side bearing plates 30; the middle clamping plate 25 and the two side clamping plates 24 are both located below the two end clamping arms 22, and the lower surface of the middle clamping plate 25 is at the same height as the lower surfaces of the two side clamping plates 24.

[0032] In order to facilitate the rapid adjustment of the spacing between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30, as well as the spacing between the two sides of the middle clamping plate 25 and the two side clamping plates 24, and to quickly fix the load-bearing device 3 or the clamping device 2, six load-bearing connection positions are formed between the two ends of the two side load-bearing plates 30 and the two ends of the two end load-bearing arms 33, and between the two ends of the middle load-bearing plate 36 and the middle of the two end load-bearing arms 33. Five vertical load-bearing connection pins 32 respectively pass through the corresponding through holes of five of the load-bearing connection positions, and both ends of the load-bearing connection pins 32 are provided with pin caps with larger diameters. The screw rod of a vertical load-bearing connecting bolt 37 passes through the corresponding through hole of another load-bearing connecting position and is connected to the nut; six clamping connection positions are formed between the two ends of the two side clamping plates 24 and the two ends of the two end clamping arms 22, and between the two ends of the middle clamping plate 25 and the middle of the two end clamping arms 22. Five vertical clamping connection pins 20 pass through the corresponding through holes of five of the clamping connection positions respectively, and both ends of the clamping connection pins 20 are provided with pin caps with larger diameters. The screw rod of a vertical clamping connection bolt 23 passes through the corresponding through hole of another clamping connection position and is connected to the nut. When in use, it is only necessary to loosen the nut corresponding to the load-bearing connecting bolt 37 or the clamping connecting bolt 23, and the spacing between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30 or the spacing between the two sides of the middle clamping plate 25 and the two side clamping plates 24 can be quickly changed by utilizing the principle of synchronous movement of the sides of the parallelogram; during the change of the parallelogram, the six load-bearing connection positions or the six clamping connection positions change synchronously and will rotate, so by fixing one of the connection positions so that it cannot rotate, the load-bearing device 3 or the clamping device 2 can be quickly fixed.

[0033] In order to achieve a better fixing effect, the load-bearing connection position corresponding to the load-bearing connection bolt 37 is one of the four load-bearing connection positions formed between the two ends of the two side load-bearing plates 30 and the two ends of the two end load-bearing arms 33; the clamping connection position corresponding to the clamping connection bolt 23 is one of the four clamping connection positions formed between the two ends of the two side clamping plates 24 and the two ends of the two end clamping arms 22. When in use, it is only necessary to loosen the load-bearing connection bolt 37 or the clamping connection bolt 23 to adjust the distance between the two sides of the middle load-bearing plate 36 and the two side load-bearing plates 30 or the distance between the two sides of the middle clamping plate 25 and the two side clamping plates 24. It is only necessary to tighten the load-bearing connection bolt 37 or the clamping connection bolt 23 to achieve the fixing function of the load-bearing device 3 or the fixing clamping device 2.

[0034] In order to realize the rapid adjustment of the distance between the middle bearing plate 36 and the middle pressing plate 25, a bearing plate center hole 31 is provided at the center position of the middle bearing plate 36, and a pressing plate center hole 27 is provided at the center position of the middle pressing plate 25. The hole wall of the pressing plate center hole 27 is provided with an internal thread. The height adjustment stud 26 includes a screw rod, a nut is provided at the upper end of the screw rod, an external thread 261 is provided in the middle and upper section of the screw rod, which cooperates with the internal thread of the pressing plate center hole 27. The lower end and the lower section of the screw rod are provided with a larger diameter limit plate 262 near the lower end. The screw rod passes through the pressing plate center hole 27 and the bearing plate center hole 31, and the nut is located above the middle pressing plate 25, and the two limit plates 262 are respectively located above and below the middle bearing plate 36. In actual applications, the two limit plates 262 are welded to the screw after the screw passes through the center hole 27 of the clamping plate and the center hole 31 of the bearing plate. The two limit plates 262 make the height adjustment stud 26 only rotate relative to the middle bearing plate 36 but not move axially. In the process of rotating the height adjustment stud 26, the middle clamping plate 25 will move vertically due to the cooperation between the external thread of the screw and the internal thread of the center hole 27 of the clamping plate, thereby realizing the function of quickly adjusting the distance between the middle bearing plate 36 and the middle clamping plate 25; this distance adjustment function is used to realize the installation, fixation and removal of the connector.

[0035] In order to make the vertical movement of the middle pressing plate 25 more stable and smooth, vertical limit guide holes 21 are respectively provided at both ends of the middle pressing plate 25, and vertical limit guide shafts 34 are respectively provided at the upper parts of both ends of the middle bearing plate 36, and the two limit guide shafts 34 respectively pass through the two limit guide holes 21. When used, the middle pressing plate 25 can only move vertically, but not horizontally, and its movement is more stable and smooth.

[0036] In order to prevent the middle pressing plate 25 from moving upward and disengaging from the limiting guide shaft 34 , a shaft cap with a larger diameter is provided at the upper end of the limiting guide shaft 34 .

[0037] In order to facilitate the placement of the connector 1, the maximum distance between the two sides of the middle clamping plate 25 and the two side clamping plates 24 is greater than the maximum distance between the two sides of the middle bearing plate 36 and the two side bearing plates 30. This is because the flange 11 of the connector 1 always needs to pass through the gap between the two sides of the middle clamping plate 25 and the two side clamping plates 24 and never needs to pass through the gap between the two sides of the middle bearing plate 36 and the two side bearing plates 30.

[0038] In order to facilitate the quick connection between the middle bearing plate 36 and the support device 4, the support device 4 includes a horizontal support seat 43 and a vertical support column. The two support columns are arranged at both ends of the support seat 43, and the two ends of the middle bearing plate 36 are respectively provided with vertical mounting holes 35, and the upper sections of the two support columns are respectively placed in the two mounting holes 35.

[0039] In order to leave enough vertical space for installing the connector 1, the support column includes a lower support column 42 and an upper support column 41. The outer diameter of the upper support column 41 is smaller than the outer diameter of the lower support column 42. The lower ends of the two lower support columns 42 are respectively connected to the two ends of the support seat 43, and the lower ends of the two upper support columns 41 are respectively connected to the upper ends of the two lower support columns 42. The two upper support columns 41 are respectively placed in two mounting holes 35.

[0040] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A connector fixing welding device, characterized in that: The invention comprises a supporting device, a bearing device and a fixed clamping device, wherein the bearing device comprises a transverse middle bearing plate, two transverse side bearing plates and two transverse end bearing arms, the two ends of the two side bearing plates are respectively rotatably connected with the two ends of the two end bearing arms to form a parallelogram structure, the two ends of the middle bearing plate are respectively rotatably connected with the middle of the two end bearing arms, the middle bearing plate and the two side bearing plates are parallel to each other, and the middle bearing plate is installed above the supporting device; the fixed clamping device comprises a transverse middle clamping plate, two transverse side clamping plates, two transverse end bearing arms The clamping arm and the vertical height adjustment stud, the two ends of the two side clamping plates are respectively rotatably connected with the two ends of the two end clamping arms to form a parallelogram structure, the two ends of the middle clamping plate are respectively rotatably connected with the middle of the two end clamping arms, the middle clamping plate and the two side clamping plates are parallel to each other, the height adjustment stud is installed between the middle bearing plate and the middle clamping plate and is used to adjust the distance between the middle bearing plate and the middle clamping plate, the middle clamping plate, the side clamping plate and the end clamping arms are all located above the middle bearing plate, the side bearing plate and the end bearing arms.

2. The connector fixing welding device according to claim 1, characterized in that: The middle load-bearing plate and the two side load-bearing plates are both located above the two end load-bearing arms, and the upper surface of the middle load-bearing plate is at the same height as the upper surfaces of the two side load-bearing plates; the middle clamping plate and the two side clamping plates are both located below the two end clamping arms, and the lower surface of the middle clamping plate is at the same height as the lower surfaces of the two side clamping plates.

3. The connector fixing welding device according to claim 1, characterized in that: A total of six bearing connection positions are formed between the two ends of the two side bearing plates and the two ends of the end bearing arms, and between the two ends of the middle bearing plate and the middle parts of the two end bearing arms. Five vertical bearing connection pins respectively pass through the corresponding through holes of five of the bearing connection positions, and both ends of the bearing connection pins are provided with pin caps with larger diameters. A screw rod of a vertical bearing connection bolt passes through the corresponding through hole of another bearing connection position and is connected with a nut; a total of six clamping connection positions are formed between the two ends of the two side clamping plates and the two ends of the end clamping arms, and between the two ends of the middle clamping plate and the middle parts of the two end clamping arms. Five vertical clamping connection pins respectively pass through the corresponding through holes of five of the clamping connection positions, and both ends of the clamping connection pins are provided with pin caps with larger diameters. A screw rod of a vertical clamping connection bolt passes through the corresponding through hole of another clamping connection position and is connected with a nut.

4. The connector fixing welding device according to claim 3, characterized in that: The load-bearing connection position corresponding to the load-bearing connecting bolt is one of the four load-bearing connection positions formed between the two ends of the two edge load-bearing plates and the two ends of the two end load-bearing support arms; the clamping connection position corresponding to the clamping connection bolt is one of the four clamping connection positions formed between the two ends of the two edge clamping plates and the two ends of the two end clamping support arms.

5. The connector fixing welding device according to claim 1, characterized in that: A center hole of a bearing plate is provided at the center position of the middle bearing plate, a center hole of a pressing plate is provided at the center position of the middle pressing plate, an internal thread is provided on the hole wall of the center hole of the pressing plate, the height adjustment stud comprises a screw rod, a nut is provided at the upper end of the screw rod, an external thread is provided in the middle and upper section of the screw rod for matching with the internal thread of the center hole of the pressing plate, a limiting plate with a larger diameter is provided at the lower end and the position of the lower section near the lower end of the screw rod, the screw rod passes through the center hole of the pressing plate and the center hole of the bearing plate, the nut is located above the middle pressing plate, and the two limiting plates are respectively located above and below the middle bearing plate.

6. The connector fixing welding device according to claim 5, characterized in that: Vertical limiting guide holes are respectively provided at both ends of the middle pressing plate, and vertical limiting guide shafts are respectively provided at the upper parts of both ends of the middle bearing plate, and the two limiting guide shafts pass through the two limiting guide holes respectively.

7. The connector fixing welding device according to claim 6, characterized in that: The upper end of the position-limiting guide shaft is provided with a shaft cap with a larger diameter.

8. The connector fixing welding device according to any one of claims 1 to 7, characterized in that: The maximum distance between the two sides of the middle pressing plate and the two side pressing plates is greater than the maximum distance between the two sides of the middle bearing plate and the two side bearing plates.

9. The connector fixing welding device according to any one of claims 1 to 7, characterized in that: The support device includes a horizontal support seat and a vertical support column. Two support columns are arranged at both ends of the support seat. Both ends of the middle bearing plate are respectively provided with vertical mounting holes, and the upper sections of the two support columns are respectively placed in the two mounting holes.

10. The connector fixing welding device according to claim 9, characterized in that: The support column includes a lower support column and an upper support column, the outer diameter of the upper support column is smaller than the outer diameter of the lower support column, the lower ends of the two lower support columns are respectively connected to the two ends of the support seat, the lower ends of the two upper support columns are respectively connected to the upper ends of the two lower support columns, and the two upper support columns are respectively placed in the two mounting holes.

Images