A welding device for a stationary contact

Abstract

A welding device of a static contact includes a positioning mechanism, a welding mechanism, a feeding mechanism and a discharging mechanism. The feeding mechanism includes a moving assembly and a clamping assembly which can be driven to open or clamp. The clamping assembly is connected to the moving assembly and is driven by the moving assembly to move between the positioning mechanism and the welding mechanism. The terminal plate and the static contact plate placed on the positioning mechanism are clamped by the clamping assembly and then are driven to the welding mechanism to be welded into a static contact product. The discharging is completed by the discharging mechanism arranged on one side of the welding mechanism. The device further includes a shaping positioning mechanism arranged on one side of the welding mechanism, which is used to shape and position the terminal plate and the static contact plate before welding and to adjust the position of the static contact product after welding to cooperate with the discharging mechanism. The shaping positioning mechanism is arranged to shape and position once before and after welding, which is beneficial to improve the welding quality and ensure the reliability and safety of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a static contact welding device. BACKGROUND

[0002] The molded case circuit breaker is an important control and protection electrical appliance in low-voltage distribution network. In the molded case circuit breaker, the static contact is not only an important device for breaking short-circuit current, but also an important port for connecting the circuit breaker with the main circuit incoming line. At present, the static contact welding is mainly operated manually. This welding method is time-consuming and laborious, has low production efficiency, and inevitably causes uneven welding quality, thereby affecting product quality. SUMMARY

[0003] The present application aims to overcome the defects of the prior art, and provide a static contact welding device with high reliability, high efficiency and good safety.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A static contact welding device comprises a positioning mechanism, a welding mechanism, a feeding mechanism and a discharging mechanism. The feeding mechanism comprises a moving assembly and a clamping assembly which can be driven to open or clamp. The clamping assembly is connected to the moving assembly and is driven by the moving assembly to move between the positioning mechanism and the welding mechanism. The terminal plate and the static contact plate placed in the positioning mechanism are clamped by the clamping assembly and then are driven to the welding mechanism to be welded into a static contact finished product. The discharging mechanism arranged on one side of the welding mechanism is used to complete the discharging. The device further comprises a shaping and positioning mechanism arranged on one side of the welding mechanism, which is used to shape and position the terminal plate and the static contact plate before welding, and adjust the position of the static contact finished product after welding to cooperate with the discharging mechanism.

[0006] Further, the shaping and positioning mechanism comprises a shaping linear motion member and a shaping and positioning head. The shaping and positioning head is connected to the shaping linear motion member and reciprocates under the driving of the shaping linear motion member. The upper part of the shaping and positioning head protrudes to one side of the welding mechanism. The upper part of the shaping and positioning head is used to extend into the gap of the clamping assembly and abut the upper surface of the static contact plate. The lower part of the shaping and positioning head is used to abut the terminal plate.

[0007] Further, the positioning mechanism comprises a positioning core and a sensing device. A positioning groove and a positioning inclined surface are arranged on the surface of the positioning core. The positioning inclined surface is located on one side of the positioning groove and is higher than the positioning groove. The terminal plate is placed in cooperation with the positioning groove. The static contact plate is placed on the terminal plate and makes one end of the static contact plate abut the positioning inclined surface. The sensing device is assembled on the positioning core and is used to detect whether the terminal plate and the static contact plate are placed on the positioning core.

[0008] Further, the blanking mechanism is obliquely arranged between the welding mechanism and the positioning mechanism, the blanking mechanism comprises a fourth cylinder and a blanking head, one end of the fourth cylinder is fixedly connected with the positioning core of the positioning mechanism, the other end of the fourth cylinder is drivingly connected with the blanking head, and the blanking head pushes the static contact product away from the welding mechanism under the driving of the fourth cylinder to complete blanking.

[0009] Further, the welding mechanism and the positioning mechanism are arranged side by side at one end of the bottom plate, the shaping positioning mechanism and the feeding mechanism are respectively arranged on the two sides of the welding mechanism, the movement assembly comprises a first linear movement assembly and a second linear movement assembly connected with each other, the first linear movement assembly, the welding mechanism and the shaping positioning mechanism are arranged along the same straight line, the clamping assembly is connected to the first linear movement assembly and is driven by the first linear movement assembly to move linearly and reciprocally, the second linear movement assembly is perpendicular to the movement track of the first linear movement assembly and intersects with the movement track, the first linear movement assembly is driven by the second linear movement assembly to move linearly and reciprocally, so that the clamping assembly reciprocates between the positioning mechanism and the welding mechanism, and the movement tracks of the shaping positioning mechanism, the welding mechanism and the first linear movement assembly are located on one straight line.

[0010] Further, the first linear movement assembly comprises a first cylinder, a first mounting seat, a first guide rail and a sliding block, the first cylinder is assembled on the sliding block through the first mounting seat, and the sliding block is driven by the first cylinder to move linearly and reciprocally along the first guide rail.

[0011] The second linear movement assembly comprises a second cylinder, a second mounting seat, a cylinder connecting head and a second guide rail, the second cylinder is fixed to the bottom plate through the second mounting seat, one end of the second cylinder is connected with the first guide rail through the cylinder connecting head, and the first guide rail is driven by the second cylinder to move linearly and reciprocally along the sliding groove of the second guide rail.

[0012] Further, the first guide rail has a cuboid structure as a whole, a pair of parallel second grooves are formed in one side surface of the first guide rail, a sliding contact part is formed on the surface of the first guide rail between the two second grooves, the sliding contact part is in sliding fit with the sliding groove of the second guide rail, a first groove in sliding fit with the sliding block is formed in the other side surface of the first guide rail, the first groove and the sliding contact part are respectively located on the front and back sides of the first guide rail, and the center axes of the first groove and the sliding contact part are perpendicular to each other.

[0013] Further, one end of the first guide rail away from the first cylinder is provided with a first limiting part for limiting the sliding block, the first limiting part is provided with a buffer for buffering the impact of the sliding block, and one end of the second guide rail away from the second cylinder is provided with a second limiting part for limiting the first guide rail.

[0014] Further, the first limiting part comprises a baffle body, an impact part is protruded in the middle of one side of the baffle body, a plurality of V-shaped grooves are arranged on the side of the impact part facing the slider, the V-shaped grooves are used for reducing the contact area between the slider and the impact part, a fastening screw is assembled at each end of the baffle body, the tail of the fastening screw is fixedly connected with the first guide rail, a buffer spring is sleeved on the rod body of the fastening screw, and the two ends of the buffer spring are matched with the head of the fastening screw and the side of the baffle body away from the slider.

[0015] Further, the clamping assembly clamps the terminal block and the static contact plate and drives them to the welding mechanism, the shaping straight-line moving part of the shaping positioning mechanism drives the shaping positioning head to move towards the welding mechanism, the upper part of the shaping positioning head extends into the gap of the clamping assembly to complete centering, then the shaping positioning head moves away from the clamping assembly, the welding mechanism welds the terminal block and the static contact plate into a static contact head product, the movement assembly drives the clamping assembly to move away from the welding mechanism, the shaping straight-line moving part drives the shaping positioning head to push the static contact head product and then resets, and the blanking mechanism blanks the static contact head product.

[0016] Further, the clamping assembly comprises a pair of clamping parts, a finger air cylinder, a connecting block, a pair of spring sheets and a pair of adjusting parts, the pair of clamping parts are connected at one end of the finger air cylinder through the connecting block, the pair of clamping parts are driven by the finger air cylinder to clamp or open, the pair of spring sheets are oppositely arranged along the clamping surfaces of the pair of clamping parts respectively, and the pair of adjusting parts are matched and assembled in the pair of clamping parts respectively for adjusting the spacing between the pair of spring sheets.

[0017] The welding device of the static contact head is formed by cooperation of a welding mechanism, a positioning mechanism, a feeding mechanism and a blanking mechanism, the shaping positioning mechanism is arranged on one side of the welding mechanism, shaping positioning is performed once before welding, the welding quality is improved, the reliability of the product is ensured, shaping positioning is performed once again after welding, the blanking mechanism is facilitated to complete blanking, and the working efficiency and safety are improved.

[0018] In addition, the inductive device is arranged on the positioning mechanism, the inductive device is used for judging whether the terminal block and the static contact plate are placed on the positioning mechanism, and whether the clamping assembly clamps the terminal block and the static contact plate is judged according to the judgment result, the cooperation degree of the device and the operation safety are improved.

[0019] In addition, the linear motion pair is formed by the first linear motion assembly and the second linear motion assembly, the installation position and space can be effectively reduced, the magnetic switch is arranged on the first air cylinder and the second air cylinder respectively, when the feeding mechanism falls or is stuck during the feeding process, the magnetic switch detects that the first air cylinder or the second air cylinder does not move to the position, the movement assembly moves to one side of the positioning mechanism, and the welding efficiency is improved.

[0020] In addition, the clamping member is provided with adjustable spring sheets, so that the terminal block and the static contact plate are elastically clamped, which is beneficial to guarantee the relative position precision of the terminal block and the static contact plate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of a static contact head product in the present application;

[0022] Figure 2 is a structural schematic view of a terminal block and a static contact plate in the present application;

[0023] Figure 3 is a structural schematic view of a welding device of a static contact head in the present application;

[0024] Figure 4 is a structural schematic view of a bottom plate and a positioning mechanism in the present application;

[0025] Figure 5 is a structural schematic view of a feeding mechanism in the present application;

[0026] Figure 6 is a structural schematic view of a first linear motion assembly and a clamping assembly in the present application;

[0027] Figure 7 is a structural schematic view of a second linear motion assembly and a bottom plate in the present application;

[0028] Figure 8 is a structural schematic view of a clamping assembly in the present application;

[0029] Figure 9 is a structural schematic view of a first guide rail, a sliding block and a first limiting part in the present application;

[0030] Figure 10 is a structural schematic view of a first guide rail and a first limiting part in the present application;

[0031] Figure 11 is a structural schematic view of a first guide rail in the present application (one side cooperated with a second guide rail);

[0032] Figure 12 is a structural schematic view of a first limiting part and a buffer in the present application;

[0033] Figure 13 is a structural schematic view of a first limiting part in the present application;

[0034] Figure 14 is a structural schematic view of a shaping and positioning mechanism in the present application;

[0035] Figure 15 is a side view of Figure 14 ;

[0036] Figure 16 isFigure 14 a top view of the feeding mechanism of the present application;

[0037] Figure 17 a structural schematic view of the feeding mechanism of the present application;

[0038] Figure 18 a structural schematic view of the light protection device and the bottom plate of the present application. DETAILED DESCRIPTION

[0039] The following embodiments are further illustrated with reference to the accompanying drawings, which further illustrate the specific embodiments of the welding device of the stationary contact of the present application. The welding device of the stationary contact of the present application is not limited to the following embodiments. Figures 1 to 18 As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding.

[0040] As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding. Figure 1 As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding. 2 As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding.

[0041] As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding. Figures 3-18 As shown in FIG. 1, the welding device of the stationary contact of the present application includes a positioning mechanism 2, a welding mechanism, a feeding mechanism, and a feeding mechanism 5. The positioning mechanism 2 and the welding mechanism are arranged side by side. The feeding mechanism includes a movement assembly and a clamping assembly 43 that can be driven to open or clamp. The clamping assembly 43 is connected to the movement assembly and is driven by the movement assembly to move between the positioning mechanism 2 and the welding mechanism. The wiring board 81 and the stationary contact board 82 placed in the positioning mechanism 2 are clamped by the clamping assembly 43 and then driven to the welding mechanism to be welded into the stationary contact product 8. The feeding mechanism 5 arranged on one side of the welding mechanism cooperates to complete the feeding.

[0042] Preferably, the bottom plate 1 is further provided with a light protection device 7, which comprises a light sensor for monitoring the placement of the terminal plate 81 and the static contact plate 82 in the operating area of the welding mechanism. When the light protection device 7 is blocked, the light protection device 7 feeds back a signal to the welding mechanism, the feeding mechanism and the blanking mechanism 5 to stop working.

[0043] Further, the positioning mechanism 2 is further provided with a sensing device 22 for detecting whether the terminal plate 81 and the static contact plate 82 are placed in the positioning mechanism 2. When the sensing device 22 detects that the terminal plate 81 and the static contact plate 82 are placed in the positioning mechanism 2, the sensing device 22 feeds back a signal to the clamping assembly 43 that the clamping assembly 43 does not clamp the terminal plate 81 and the static contact plate 82 at this time, and the movement assembly needs to be driven to move the clamping assembly 43 to the positioning mechanism 2.

[0044] An improvement of the present application is that the welding mechanism is further provided with a shaping positioning mechanism 6 on one side, which is used for shaping and positioning the terminal plate 81 and the static contact plate 82 before welding, and adjusting the position of the static contact product 8 after welding to cooperate with the blanking mechanism 5. Before welding by the welding mechanism, the shaping positioning mechanism 6 cooperates with the clamping assembly 43 to first shape and position the terminal plate 81 and the static contact plate 82 placed on the welding mechanism, so as to ensure that the terminal plate 81 and the static contact plate 82 are centered and prevent deviation during welding, which affects the quality of the static contact product 8. After welding is completed, the shaping positioning mechanism 6 cooperates with the clamping assembly 43 again to adjust the position of the static contact product 8, which is beneficial to push the static contact product 8 away by the blanking mechanism 5, is beneficial to optimize the cooperation degree between the mechanisms, improves the welding quality of the static contact product 8, and reduces manual operation.

[0045] In combination Figures 1-18The welding device of the static contact head comprises a base plate 1, a positioning mechanism 2, a welding mechanism, a feeding mechanism, a blanking mechanism 5, a shaping positioning mechanism 6 and a light protection device 7 carried on the base plate 1, wherein the positioning mechanism 2 and the welding mechanism are arranged side by side at one end of the base plate 1, a certain interval is left between the welding mechanism and the positioning mechanism 2, the blanking mechanism 5 is arranged obliquely between the welding mechanism and the positioning mechanism 2, which is beneficial to reducing the space occupied by the blanking mechanism 5; the feeding mechanism is arranged in the middle of the base plate 1, the feeding mechanism comprises a movement assembly and a clamping assembly 43 which can be driven to open or clamp, preferably the movement assembly comprises a first linear movement assembly 41 and a second linear movement assembly 42 which are connected to each other to form a linear movement pair, wherein the movement trajectories of the first linear movement assembly 41 and the second linear movement assembly 42 are perpendicular to each other, which can effectively reduce the installation position and space, the clamping assembly 43 is connected to the movement assembly, specifically the clamping assembly 43 is connected to the first linear movement assembly 41, the clamping assembly 43 is driven by the movement assembly to move linearly in two directions on the base plate 1, so that the clamping assembly 43 moves linearly and reciprocally between the welding mechanism and the positioning mechanism 2, the clamping assembly 43 clamps the terminal plate 81 and the static contact plate 82 placed on the positioning mechanism 2 and then drives them to the welding mechanism as a whole, the terminal plate 81 and the static contact plate 82 are welded into a static contact head product 8 by the welding mechanism; the shaping positioning mechanism 6 is arranged on one side of the welding mechanism, preferably the shaping positioning mechanism 6 and the feeding mechanism are respectively arranged on the two sides of the welding mechanism, the first linear movement assembly 41, the welding mechanism and the shaping positioning mechanism 6 are basically arranged along the same straight line, the movement direction of the shaping positioning mechanism 6, the movement trajectory of the welding mechanism and the first linear movement assembly 41 are basically located on a straight line, and the movement direction of the shaping positioning mechanism 6 is perpendicular to the movement direction of the blanking mechanism 5, before the welding mechanism welds and after the welding mechanism completes the welding, the shaping positioning mechanism 6 cooperates with the clamping assembly 43 to respectively perform shaping positioning once, and finally the blanking mechanism 5 pushes the static contact head product 8 away from the welding mechanism to complete blanking.

[0046] As shown in Figure 3 , the welding mechanism comprises a first electrode 31 and a second electrode 32 arranged oppositely, a through slot is arranged at one end of the base plate 1 for the first electrode 31 to pass through, the second electrode 32 is located above the first electrode 31 and can move up and down relative to the first electrode 31, and the welding is completed by cooperation with the first electrode 31.

[0047] As shown in Figure 3 and 4As shown, the positioning mechanism 2 comprises a positioning core 21 and a sensing device 22, the positioning core 21 is fixed to the bottom plate 1 and located near one corner of the bottom plate 1, the positioning core 21 is in a columnar structure, a positioning groove 211 is arranged in the middle of the upper surface of the positioning core 21, the side wall of the positioning groove 211 extends upwardly and protrusively from one side, the upper surface of the protrusive side wall of the positioning groove 211 is an inclined surface, the inclined surface is used as a positioning inclined surface 212, when the clamping assembly 43 drives the terminal block 81 and the static contact plate 82 to the welding mechanism, the terminal block 81 is positioned by cooperating with the positioning groove 211, and one end of the static contact plate 82 placed on the terminal block 81 is in contact with the positioning inclined surface 212; the sensing device 22 is assembled to the positioning core 21 for detecting whether the terminal block 81 and the static contact plate 82 are placed on the positioning core 21, whether the clamping assembly 43 clamps the terminal block 81 and the static contact plate 82 is judged according to the signal fed back by the sensing device 22.

[0048] As shown in Figures 5-13 , the feeding mechanism comprises a motion assembly and a clamping assembly 43, the clamping assembly 43 is driven by the motion assembly to perform linear reciprocating motion on the bottom plate 1, in this embodiment, the motion assembly comprises a first linear motion assembly 41 and a second linear motion assembly 42 forming a linear motion pair, wherein the first linear motion assembly 41 is arranged along the same straight line with the welding mechanism, that is, the X direction in Figure 6 , 7 , the clamping assembly 43 is connected to the first linear motion assembly 41 and is driven by the first linear motion assembly 41 to perform linear reciprocating motion, the second linear motion assembly 42 intersects perpendicularly with the motion track of the first linear motion assembly 41, that is, the second linear motion assembly 42 is arranged along the Y direction in Figure 6 , 7 , the second linear motion assembly 42 drives the first linear motion assembly 41 to perform linear reciprocating motion, so that the clamping assembly 43 reciprocates between the positioning mechanism 2 and the welding mechanism.

[0049] As shown in Figure 5 , 6As shown, the first linear motion assembly 41 comprises a first cylinder 411, a first mounting base 412, a first guide rail 413 and a sliding block 414. The first cylinder 411 is assembled on the sliding block 414 through the first mounting base 412. The sliding block 414 is driven by the first cylinder 411 to move linearly and reciprocatingly along the first guide rail 413. That is, the first cylinder 411 and the first guide rail 413 are arranged along the X direction of the bottom plate 1. The clamping assembly 43 connected to the first linear motion assembly 41 is driven to move linearly along the X direction of the bottom plate 1. Preferably, the first guide rail 413 is provided with a first groove 4131 which is in sliding cooperation with the sliding block 414.

[0050] As shown in Figure 5 、 7 the second linear motion assembly 42 comprises a second cylinder 421, a second mounting base 422, a cylinder connecting head 423 and a second guide rail 424. The second cylinder 421 is fixed to the bottom plate 1 through the second mounting base 422. One end of the second cylinder 421 is connected with the first guide rail 413 through the cylinder connecting head 423. The first guide rail 413 moves linearly and reciprocatingly along the second guide rail 424 under the drive of the second cylinder 421. Figure 7 At this time, the second guide rail 424 and the second cylinder 421 are arranged along the Y direction of the bottom plate 1. The second guide rail 424 and the second cylinder 421 are parallel to one side of the welding mechanism and the positioning mechanism 2. Preferably, the second guide rail 424 is provided with a sliding groove 4241 which is in sliding cooperation with the first guide rail 413. The central axis of the sliding groove 4241 is perpendicular to the first linear motion assembly 41. A second limiting portion 425 for limiting the first guide rail 413 is arranged at one end of the second guide rail 424 away from the second cylinder 421 to prevent the first guide rail 413 from falling off the second guide rail 424.

[0051] In addition, the first cylinder 411 and the second cylinder 421 are respectively provided with a magnetic switch. Each magnetic cylinder is used for detecting whether the first cylinder 411 and the second cylinder 421 move to the position. When the clamping assembly 43 falls or is stuck during the movement process, the first cylinder 411 and / or the second cylinder 421 cannot move to the position. At this time, the corresponding magnetic switch is triggered. According to the feedback signal of the magnetic switch, the movement assembly returns to the positioning mechanism 2 for the next clamping operation.

[0052] In combination with Figures 5-13A specific structure for a first guide rail 413 is provided. The first guide rail 413 is generally rectangular. A pair of parallel second grooves 4132 are formed on one side surface of the first guide rail 413, so that a sliding contact portion 4133 is formed on the surface of the first guide rail 413 located between the two second grooves 4132. Figure 10 As shown in Figure 11, one of the second grooves 4132 is formed at one end of the first guide rail 413. The two second grooves 4132 make the sliding contact part 4133 have a boss structure as a whole. Preferably, the edge of the sliding contact part 4133 is rounded to facilitate sliding engagement with the groove 4241 of the second guide rail 424. Groove structures are provided on both sides of the sliding contact part 4133, making the sliding contact part 4133 have a structure that is thinner at one end and thicker at the other end. This allows the two sides of the sliding contact part 4133 to engage with the sidewall of the groove 4241, preventing the sliding contact part 4133 from moving in any other direction. Multiple grooves 4134 are provided on the surface of the sliding contact part 4133 that engages with the groove 4241. Figure 11 Multiple grooves 4134 are provided on the upper surface of the sliding contact portion 4133 to improve the sliding fit between the sliding contact portion 4133 and the sliding groove 4241 by reducing the contact area between the sliding contact portion 4133 and the sliding groove 4241. A first groove 4131 is provided on the other side surface of the first guide rail 413 to slide and fit with the slider 414. The first groove 4131 and the sliding contact portion 4133 are located on the opposite sides of the first guide rail 413, and the first groove 4131 is perpendicular to the central axis of the sliding contact portion 4133. Preferably, an insulating sheet 418 for isolating current is also provided between the slider 414 and the clamping assembly 43. In this embodiment, the insulating sheet 418 is located between the slider 414 and the finger cylinder 431.

[0053] The first limiting part is set at one end of the first guide rail 413 as follows Figure 9 , 10 As shown in Figures 12 and 13, the first limiting part includes a baffle body 415. An impact part 4151 protrudes from the middle of one side of the baffle body 415. The size of the impact part 4151 is preferably matched with the size of the first groove 4131 so that the impact part 4151 can block one end of the first groove 4131, which can play the role of sealing oil and preventing noise. Multiple V-shaped grooves are provided on the side of the impact part 4151 facing the slider 414. The V-shaped grooves are used to reduce the contact area between the slider 414 and the impact part 4151. Of course, noise reduction can also be achieved by setting sound-absorbing cotton in the impact part 4151 or by using soft contact.

[0054] A screw hole 4152 is arranged at each end of the baffle body 415, and a fastening screw 416 is assembled in each screw hole 4152, wherein the tail of the fastening screw 416 is fixedly connected with the first guide rail 413, the baffle body 415 is fixedly assembled at one end of the first guide rail 413 through the fastening screw 416, the rod body of the fastening screw 416 is sleeved with a buffer spring 417, and the two ends of the buffer spring 417 are matched with the head of the fastening screw 416 and the side of the baffle body 415 opposite to the sliding block 414. When the sliding block 414 collides with the impact portion 4151, the buffer spring 417 is extruded under the action of the baffle body 415 and the head of the fastening screw 416, so that the impact buffering is realized. In addition, other mechanical buffering or oil pressure buffering can also be used to realize the impact buffering. Of course, the second limiting portion 425 arranged at the second guide rail 424 can also adopt the above structure to realize the oil sealing, sound elimination and impact buffering when colliding with the first guide rail 413.

[0055] As shown in Figure 5 , 6 and 8, the clamping assembly 43 comprises a pair of clamping pieces 433, a finger cylinder 431, a connecting block 432, a pair of spring sheets 434 and a pair of adjusting pieces 435, the pair of clamping pieces 433 are connected at one end of the finger cylinder 431 through the connecting block 432, and the pair of clamping pieces 433 are driven by the finger cylinder 431 to clamp or open, in the embodiment, the pair of clamping pieces 433 are of a split structure, and of course, an integral structure can also be adopted, the pair of spring sheets 434 are oppositely arranged along the clamping surfaces of the pair of clamping pieces 433 respectively, and the pair of adjusting pieces 435 are matched and assembled on the pair of clamping pieces 433 respectively for adjusting the distance between the pair of spring sheets 434, Figure 8 In the embodiment, the pair of spring sheets 434 are arranged at the opposite sides of the pair of clamping pieces 433, and the pair of adjusting pieces 435 preferably adopt screws, one end of the screw is located outside the clamping piece 433 for rotating the screw, the other end of the screw penetrates through the clamping piece 433 and matches with the spring sheet 434, and the distance between the pair of spring sheets 434 is adjusted by adjusting the length of the screw penetrating between the pair of clamping pieces 433, so that the elastic clamping of the wiring board 81 and the static contact board 82 is realized, and the relative position accuracy of the wiring board 81 and the static contact board 82 is facilitated to be ensured.

[0056] As shown in Figures 14-16As shown, the shaping positioning mechanism 6, the welding mechanism and the first linear motion assembly 41 are arranged along the same straight line, and the shaping positioning mechanism 6 and the first linear motion assembly 41 are respectively located on the two sides of the welding mechanism. The shaping positioning mechanism 6 comprises a shaping linear motion piece, a third mounting seat 62 and a shaping positioning head 63. The shaping linear motion piece is a third cylinder 61. The third cylinder 61 is fixed to one side of the welding mechanism through the third mounting seat 62. Preferably, the third cylinder 61 performs linear reciprocating motion along the X direction of the bottom plate 1. The shaping positioning head 63 is connected to the third cylinder 61 and performs reciprocating motion under the driving of the third cylinder 61. The upper part of the shaping positioning head 63 protrudes to one side of the welding mechanism in the figure, so that the upper part of the shaping positioning head 63 presents a character "N". The upper part of the shaping positioning head 63 can extend into the gap between the pair of clamping pieces 433 of the clamping assembly 43. The upper part of the shaping positioning head 63 abuts against the upper surface of one end of the static contact plate 82. The static contact plate 82 and the terminal plate 81 are positioned by cooperating with the pair of clamping pieces 433. The lower part of the shaping positioning head 63 can abut against one first connecting part 811 of the terminal plate 81 and position the terminal plate 81 by cooperating with the pair of clamping pieces 433. Thus, the shaping positioning of the terminal plate 81 and the static contact plate 82 is realized.

[0057] As shown in the figure, Figure 17 The blanking mechanism 5 is obliquely arranged between the welding mechanism and the positioning mechanism 2. The blanking mechanism 5 comprises a fourth cylinder 51 and a blanking head 52. One end of the fourth cylinder 51 is fixedly connected with the positioning core 21 of the positioning mechanism 2. In the figure, one end of the fourth cylinder 51 is obliquely fixed with the positioning core 21. The other end of the fourth cylinder 51 is drivingly connected with the blanking head 52. The blanking head 52 pushes the static contact head product 8 away from the welding mechanism under the driving of the fourth cylinder 51 to complete blanking. Preferably, the end of the blanking head 52 presents a character "N". The blanking head 52 pushes the static contact head product 8 away from the first electrode 31 of the welding mechanism by pushing through the two first connecting parts 811 of the terminal plate 81 of the static contact head product 8.

[0058] As shown in the figure, Figure 18 The light protection device 7 is arranged on one side of the bottom plate 1. Preferably, the light protection device 7 is arranged on one side of the bottom plate 1 between the welding mechanism and the feeding mechanism. The light protection device 7 is located on the side of the bottom plate 1 away from the positioning mechanism 2. The light protection device 7 comprises a light sensor. The light sensor monitors the operation area of the terminal plate 81 and the static contact plate 82 placed on the welding mechanism. When the light protection device 7 is blocked, the light protection device 7 feeds back a signal to the outside to make the welding mechanism, the feeding mechanism and the blanking mechanism 5 stop working.

[0059] In addition, the first cylinder 411, the second cylinder 421, the third cylinder 61, the fourth cylinder 51 and the finger cylinder 431 in the embodiment can also be replaced by hydraulic cylinders or other electric driving devices.

[0060] The welding method applied to the device is as follows: firstly, the terminal board 81 is placed in the positioning groove 211 of the positioning core 21, and then the static contact plate 82 is placed on the terminal board 81, the terminal board 81 and the static contact plate 82 are temporarily fixed through the first welding point 813 and the second welding point 822, and one end of the static contact plate 82 is attached to the positioning inclined surface 212 of the positioning mechanism 2; secondly, when the terminal board 81 and the static contact plate 82 are placed on the positioning core 21, the induction device 22 feeds back a signal to the motion assembly, the second cylinder 421 drives the first guide rail 413 to slide to one side of the positioning mechanism 2, and the first cylinder 411 drives the sliding block 414 and the clamping assembly 43 to move towards the positioning mechanism 2; then, the terminal board 81 and the static contact plate 82 are clamped by the clamping assembly 43 and then driven to the first electrode 31 of the welding mechanism, the third cylinder 61 of the shaping positioning mechanism 6 drives the shaping positioning head 63 to move towards the welding mechanism, the upper part of the shaping positioning head 63 extends into the gap of the clamping assembly 43, cooperates with the pair of clamping assemblies 433 to complete centering, the third cylinder 61 drives the shaping positioning head 63 to return to the original position away from the clamping assembly 43, and meanwhile the welding mechanism welds the first welding point 813 of the terminal board 81 and the second welding point 822 of the static contact plate 82 together to form the static contact product 8; finally, the motion assembly drives the clamping assembly 43 away from the first electrode 31 of the welding mechanism, the third cylinder 61 drives the shaping positioning head 63 to push the static contact product, and one side wall of the static contact product 8 after welding is attached to the first electrode 31, which is beneficial to the unloading of the unloading mechanism 5, and after the shaping positioning head 63 returns to the original position, the fourth cylinder 51 drives the unloading head 52 to push the static contact product 8 away from the first electrode 31 to complete the unloading.

[0061] In addition, when the induction device 22 senses that the terminal board 81 and the static contact plate 82 are placed on the positioning core 21, it indicates that the clamping assembly 43 is not clamped, at this time, the motion assembly is controlled to drive the clamping assembly 43 to move to one side of the positioning mechanism 2, or the motion assembly is controlled to stop moving; when the magnetic switch is triggered, it indicates that jamming or falling occurs, at this time, the motion assembly is controlled to drive the clamping assembly 43 to move to one side of the positioning mechanism 2, of course, the motion assembly can also be driven to stop moving; after the photosensitive protection device 7 is triggered, the welding mechanism, the feeding mechanism and the unloading mechanism 5 all stop working to ensure personal safety.

[0062] The above is a further detailed description of the present application in combination with a specific preferred embodiment, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, a number of simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be regarded as falling within the protection scope of the present application.

Claims

1. A welding device for a stationary contact, comprising a positioning mechanism (2), a welding mechanism, a feeding mechanism, and a discharging mechanism (5), wherein the feeding mechanism comprises a motion component and a clamping component (43) that can be driven to open or clamp, the clamping component (43) being connected to the motion component, the motion component driving the clamping component (43) to move between the positioning mechanism (2) and the welding mechanism, the wiring plate (81) and the stationary contact plate (82) placed in the positioning mechanism (2) being clamped by the clamping component (43) and then driven to the welding mechanism to be welded into a finished stationary contact (8), and the discharging is completed by the discharging mechanism (5) located on one side of the welding mechanism, characterized in that: It also includes a shaping and positioning mechanism (6) set on one side of the welding mechanism, which is used to shape and position the terminal block (81) and stationary contact plate (82) before welding, and to adjust the position of the finished stationary contact (8) after welding to cooperate with the feeding mechanism (5). The shaping and positioning mechanism (6) includes a shaping linear motion component and a shaping and positioning head (63). The shaping and positioning head (63) is connected to the shaping linear motion component and reciprocates under the drive of the shaping linear motion component. The upper part of the shaping and positioning head (63) protrudes to one side of the welding mechanism. The upper part of the shaping and positioning head (63) is used to extend into the gap of the clamping assembly (43) and fit against the upper surface of the stationary contact plate (82). The lower part of the shaping and positioning head (63) is used to fit against the wiring board (81).

2. The welding device for a stationary contact according to claim 1, characterized in that: The positioning mechanism (2) includes a positioning core (21) and a sensing device (22). The positioning core (21) has a positioning groove (211) and a positioning inclined surface (212) on its surface. The positioning inclined surface (212) is located on one side of the positioning groove (211) and is higher than the positioning groove (211). The wiring plate (81) is placed in cooperation with the positioning groove (211). The stationary contact plate (82) is placed on the wiring plate (81) and one end of the stationary contact plate (82) is in contact with the positioning inclined surface (212). The sensing device (22) is assembled on the positioning core (21) to detect whether the wiring plate (81) and the stationary contact plate (82) are placed on the positioning core (21).

3. The welding device for a stationary contact according to claim 1, characterized in that: The feeding mechanism (5) is inclined between the welding mechanism and the positioning mechanism (2). The feeding mechanism (5) includes a fourth cylinder (51) and a feeding head (52). One end of the fourth cylinder (51) is fixedly connected to the positioning core (21) of the positioning mechanism (2), and the other end of the fourth cylinder (51) is driven to the feeding head (52). The feeding head (52) pushes the stationary contact finished product (8) away from the welding mechanism to complete the feeding under the drive of the fourth cylinder (51).

4. The welding device for a stationary contact according to claim 1, characterized in that: It also includes a base plate (1), a welding mechanism and a positioning mechanism (2) arranged side by side on the base plate (1), a shaping and positioning mechanism (6) and a feeding mechanism located on both sides of the welding mechanism, and a motion component including a first linear motion component (41) and a second linear motion component (42) connected to each other. The first linear motion component (41), the welding mechanism and the shaping and positioning mechanism (6) are arranged along the same straight line. The clamping component (43) is connected to the first linear motion component (41) and is driven by the first linear motion component (41) to perform linear reciprocating motion. The second linear motion component (42) intersects the motion trajectory of the first linear motion component (41) perpendicularly. The second linear motion component (42) drives the first linear motion component (41) to perform linear reciprocating motion, so that the clamping component (43) moves back and forth between the positioning mechanism (2) and the welding mechanism.

5. The welding device for a stationary contact according to claim 4, characterized in that: The first linear motion component (41) includes a first cylinder (411), a first mounting base (412), a first guide rail (413), and a slider (414). The first cylinder (411) is mounted on the slider (414) through the first mounting base (412), and the first cylinder (411) drives the slider (414) to perform linear reciprocating motion along the first guide rail (413). The second linear motion assembly (42) includes a second cylinder (421), a second mounting base (422), a cylinder connector (423), and a second guide rail (424). The second cylinder (421) is fixed to the base plate (1) through the second mounting base (422). One end of the second cylinder (421) is connected to the first guide rail (413) through the cylinder connector (423), so that the first guide rail (413) moves linearly back and forth along the slide groove (4241) of the second guide rail (424) under the drive of the second cylinder (421).

6. The welding apparatus for a stationary contact according to claim 5, characterized in that: The first guide rail (413) has a rectangular parallelepiped structure. A pair of parallel second grooves (4132) are formed on one side surface of the first guide rail (413), so that a sliding contact part (4133) is formed on the surface of the first guide rail (413) between the two second grooves (4132). The sliding contact part (4133) slides with the groove (4241) of the second guide rail (424). A first groove (4131) that slides with the slider (414) is formed on the other side surface of the first guide rail (413). The first groove (4131) and the sliding contact part (4133) are located on the front and back sides of the first guide rail (413), respectively, and the central axis of the first groove (4131) and the sliding contact part (4133) are perpendicular to each other.

7. The welding device for a stationary contact according to claim 5, characterized in that: The first guide rail (413) is provided with a first limiting part for limiting the slider (414) at one end away from the first cylinder (411), and the first limiting part is provided with a buffer for buffering the impact of the slider (414). The second guide rail (424) is provided with a second limiting part (425) for limiting the first guide rail (413) at one end away from the second cylinder (421). The first limiting part includes a baffle body (415), and an impact part (4151) protrudes from the middle of one side of the baffle body (415). The impact part (4151) has multiple V-shaped grooves on the side facing the slider (414). The V-shaped grooves are used to reduce the contact area between the slider (414) and the impact part (4151). A fastening screw (416) is respectively installed at both ends of the baffle body (415). The tail of the fastening screw (416) is fixedly connected to the first guide rail (413). A buffer spring (417) is sleeved on the rod of the fastening screw (416). The two ends of the buffer spring (417) are respectively engaged with the head of the fastening screw (416) and the side of the baffle body (415) facing away from the slider (414).

8. The welding device for a stationary contact according to claim 1, characterized in that: After clamping the terminal block (81) and stationary contact plate (82) of the clamping assembly (43), the clamping member (433) drives them to the welding mechanism. The shaping linear motion member of the shaping and positioning mechanism (6) drives the shaping and positioning head (63) to move towards the welding mechanism, so that the upper part of the shaping and positioning head (63) extends into the gap of the clamping assembly (43) to complete the centering. Then the shaping and positioning head (63) moves away from the clamping assembly (43). The welding mechanism welds the terminal block (81) and stationary contact plate (82) into a finished stationary contact (8). The motion component drives the clamping assembly (43) away from the welding mechanism. The shaping linear motion member drives the shaping and positioning head (63) again to push the finished stationary contact and then reset. The unloading mechanism (5) unloads the finished stationary contact (8).

9. The welding device for a stationary contact according to claim 1, characterized in that: The clamping assembly (43) includes a pair of clamping members (433), a finger cylinder (431), a connecting block (432), a pair of spring plates (434), and a pair of adjusting members (435). The pair of clamping members (433) are connected to one end of the finger cylinder (431) through the connecting block (432). The finger cylinder (431) drives the pair of clamping members (433) to clamp or open. The pair of spring plates (434) are respectively arranged opposite to each other along the clamping surfaces of the pair of clamping members (433). The pair of adjusting members (435) are respectively fitted to the pair of clamping members (433) to adjust the distance between the pair of spring plates (434).

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