A welding device for automobile brake production

Abstract

The application discloses a welding device for automobile brake production and relates to the brake welding technical field, which comprises an operation table, an assembling unit, a brake pad feeding part, a brake disc feeding part and a welding part; the top of the operation table is fixedly provided with the assembling unit, the top of the operation table is fixedly provided with the brake pad feeding part, the top of the operation table is fixedly provided with the brake disc feeding part, the top of the operation table is fixedly provided with the welding part, and the brake pad feeding part and the brake disc feeding part are fixedly connected with the assembling unit. The high-precision positioning and stable clamping of the brake pad and the brake disc are realized through the coordinated cooperation of the feeding assembly, the fixing assembly and the limiting assembly, the workpiece displacement problem caused by the poor clamping positioning adaptability in traditional manual operation and partial automatic devices is overcome, and the consistency of the assembling process and the accuracy of the welding position are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake welding, in particular to a welding device for automobile brake production. BACKGROUND

[0002] In the automobile brake manufacturing process, the welding of the inner and outer rings of the brake pad is a core process link that determines the performance of the brake. The brake pad, as a key friction component of the brake, the firmness and coaxiality of the inner and outer rings directly affect the friction force transmission efficiency and structural stability during braking, and further relate to the vehicle braking safety.

[0003] At present, the welding of the brake pad of the automobile brake is carried out by the traditional manual feeding, positioning and welding mode. The welding quality is unstable due to the manual error, and the automatic integration is lacking, which makes it difficult to continuously produce and affects the product consistency. At the same time, although the existing part of the automatic welding device realizes part of the automation, the fixing mechanism is difficult to adapt to different sizes of workpieces during clamping and positioning, the clamping force is uneven, and the workpiece is easy to shift during welding, which affects the welding quality. Continuous operation is easy to jam or inaccurate feeding, which is difficult to meet the modern automobile parts manufacturing demand. SUMMARY

[0004] In view of the above problems existing in the prior art welding device for automobile brake production, the present application is proposed.

[0005] Therefore, the present application provides a welding device for automobile brake production, which aims to solve the problems of unstable quality due to error, difficult continuous production in the traditional manual mode, and poor clamping and positioning adaptability and easy workpiece shifting of the existing part of the automatic device.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a welding device for automobile brake production, comprising an operation table, further comprising an assembly unit, a brake pad feeding part, a brake disc feeding part and a welding part; the top of the operation table is fixedly provided with the assembly unit, the top of the operation table is fixedly provided with the brake pad feeding part, the top of the operation table is fixedly provided with the brake disc feeding part, and the top of the operation table is fixedly provided with the welding part, and the brake pad feeding part and the brake disc feeding part are fixedly connected with the assembly unit; the assembly unit comprises a motor fixedly installed in the operation table, a rotating disc penetrating and fixedly installed at the output end of the motor, a limiting assembly fixedly installed at the other end of the rotating disc, an upper feeding assembly fixedly installed on the rotating disc, a fixing assembly fixedly installed on the upper feeding assembly, and a lower feeding assembly fixedly installed on the operation table, and the lower feeding assembly is slidably connected with the upper feeding assembly and the fixing assembly.

[0007] As a preferred scheme of the welding device for automobile brake production, the limiting assembly comprises a rotating part fixedly installed on the rotating disc, a connecting rod fixedly installed on the outer wall of the rotating part, and a spring sheet fixedly installed on the connecting rod.

[0008] As a preferred scheme of the welding device for automobile brake production, the feeding assembly comprises an electric push rod fixedly installed on the rotating disc, a push plate fixedly installed on the output end of the electric push rod, an extension part fixedly installed on the push plate, and a top block fixedly installed on the extension part.

[0009] As a preferred scheme of the welding device for automobile brake production, the inner wall of the extension part is fixedly installed with a coil spring, the other end of the coil spring is fixedly installed with a rotating column, and the rotating column is rotationally connected with the extension part.

[0010] As a preferred scheme of the welding device for automobile brake production, the outer wall of the rotating column is fixedly installed with a clamping plate, and the clamping plate is rotationally connected with the extension part.

[0011] As a preferred scheme of the welding device for automobile brake production, the fixing assembly comprises limiting parts fixedly installed on both sides of the electric push rod, a connecting bottom plate fixedly installed on the other end of the limiting parts, a reset spring one fixedly installed on the inner wall of the connecting bottom plate, a moving rod fixedly installed on the reset spring one, and a sliding block fixedly installed on the moving rod, and the sliding block and the moving rod are slidingly connected with the connecting bottom plate.

[0012] As a preferred scheme of the welding device for automobile brake production, the moving rod is fixedly installed with an adjusting part, the other end of the adjusting part is fixedly installed with a brake pad fixing part, and the other end of the brake pad fixing part is fixedly installed with a brake disc fixing part.

[0013] As a preferred scheme of the welding device for automobile brake production, the feeding assembly comprises a limiting ring fixedly installed on the operating table, a limiting groove fixedly arranged on the outer wall of the limiting ring, a moving shaft slidingly installed in the limiting groove, a supporting block fixedly installed on the moving shaft, a connecting part fixedly installed on the supporting block, a reset spring two fixedly installed on the inner wall of the connecting part, and an extruding part fixedly installed on the other end of the reset spring two.

[0014] As a preferred scheme of the welding device for automobile brake production, the brake pad feeding part comprises a feeding part one fixedly installed on the operating table, a placing part fixedly installed on the feeding part one, a receiving part slidingly installed on the inner wall of the placing part, and a feeding groove fixedly installed on the feeding part one, and the feeding groove is slidingly connected with the extension part and the clamping plate.

[0015] As a preferred scheme of the welding device for automobile brake production, wherein: the disc brake feeding part comprises a feeding element two fixedly installed on the operation table, a lamination element fixedly installed on the feeding element two, a fixed plate fixedly installed on the lamination element, an extrusion part fixedly installed on the fixed plate, and a push plate fixedly installed on the extrusion part, and the push plate is in sliding connection with the lamination element.

[0016] The application has the advantages that: firstly, through the coordinated cooperation of the feeding assembly, the fixing assembly and the limiting assembly, high-precision positioning and stable clamping of the brake pad and the brake disc are realized, the workpiece displacement problem caused by poor clamping positioning adaptability in traditional manual operation and partial automation devices is overcome, the consistency of the assembly process and the accuracy of the welding position are ensured, secondly, the assembly is rotated according to the process by using the motor to drive the rotating disc, and the automatic connection of the welding part and the discharging assembly is combined, so that the full-process automation continuous production from feeding, assembly, welding to discharging is realized, not only the manual intervention is reduced and the production efficiency is improved, but also the quality fluctuation caused by human error is avoided, the product stability is ensured, in addition, the overall mechanism simplifies the traditional complex feeding structure, improves the feeding precision, reduces the equipment maintenance cost and operation difficulty, and meets the needs of modern automobile part manufacturing for high efficiency, high precision and low cost operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0018] Figure 1 It is the overall structure schematic diagram of the welding device for automobile brake production.

[0019] Figure 2 It is the expanded structure schematic diagram of the welding device for automobile brake production.

[0020] Figure 3 It is the cross-sectional structure schematic diagram of the welding device for automobile brake production.

[0021] Figure 4 It is the assembly unit structure schematic diagram of the welding device for automobile brake production.

[0022] Figure 5 It is the assembly unit cross-sectional structure diagram of the welding device for automobile brake production.

[0023] Figure 6Welding device for automobile brake production of the present application Figure 5 The enlarged structure schematic view of A of the application.

[0024] Figure 7 Welding device for automobile brake production of the present application Figure 5 The enlarged structure schematic view of B of the application.

[0025] Figure 8 The structure schematic view of the brake pad feeding part of the welding device for automobile brake production of the present application.

[0026] Figure 9 The structure schematic view of the brake disc feeding part of the welding device for automobile brake production of the present application.

[0027] Figure legend: 1, operation table; 2, assembly unit; 21, motor; 22, rotating disc; 23, limiting assembly; 231, rotating piece; 232, connecting rod; 233, spring piece; 24, feeding assembly; 241, electric push rod; 242, push plate; 243, extension piece; 244, coil spring; 245, rotating column; 246, clamping plate; 247, top block; 25, fixing assembly; 251, limiting piece; 252, connecting bottom plate; 253, reset spring one; 254, moving rod; 255, sliding block; 256, adjusting piece; 257, brake pad fixing piece; 258, brake disc fixing piece; 26, discharging assembly; 261, limiting ring; 262, limiting groove; 263, moving shaft; 264, support block; 265, connecting piece; 266, reset spring two; 267, extrusion piece; 3, brake pad feeding part; 31, feeding piece one; 32, placing piece; 33, receiving piece; 34, feeding groove; 4, brake disc feeding part; 41, feeding piece two; 42, fitting piece; 43, fixed plate; 44, extrusion part; 45, push plate; 5, welding part. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] Example 1, refer to Figure 1 - Figure 3For the first embodiment of the present application, a welding device for automobile brake production is provided, which comprises an operation table 1, and an assembling unit 2, a brake pad feeding part 3, a brake disc feeding part 4 and a welding part 5, wherein the top of the operation table 1 is fixedly provided with the assembling unit 2 for feeding and assembling the brake pad and the brake disc; the top is also fixedly provided with the brake pad feeding part 3 for feeding the brake pad; similarly, the top is fixedly provided with the brake disc feeding part 4 for feeding the brake disc; in addition, the top is also fixedly provided with the welding part 5, and the brake pad feeding part 3 and the brake disc feeding part 4 are fixedly connected with the assembling unit 2 to jointly complete the welding of the brake pad and the brake disc.

[0030] Further, the assembling unit 2 comprises a motor 21 fixedly installed inside the operation table 1 for driving rotation, a rotating disc 22 penetratingly and fixedly installed at the output end of the motor 21 for rotation stabilization, a limiting assembly 23 fixedly installed at the other end of the rotating disc 22 for limiting during assembling, an feeding assembly 24 fixedly installed on the rotating disc 22 for feeding the brake pad and the brake disc, a fixing assembly 25 fixedly installed on the feeding assembly 24 for assembling and fixing the brake pad and the brake disc, and a discharging assembly 26 fixedly installed on the operation table 1 and slidably connected with the feeding assembly 24 and the fixing assembly 25 for extruding and discharging the welded brake pad and brake disc.

[0031] Under the cooperation of the brake pad feeding part 3, the feeding assembly 24 takes the brake pad from its inside and fixes the brake pad under the cooperation of the fixing assembly 25 and the limiting assembly 23, then the motor 21 drives the rotating disc 22 to make the feeding assembly 24 and the fixing assembly 25 turn to the brake disc feeding part 4, under the cooperation of the brake disc feeding part 4, the feeding assembly 24 places the brake disc into the fixing assembly 25 again, the fixing assembly 25 fixes the brake disc at the same time, and also makes the brake pad and the brake disc adhere and connect, then the motor 21 drives the feeding assembly 24 and the fixing assembly 25 to rotate to the welding part 5, the welding part 5 starts to weld the assembled brake pad, finally, the motor 21 rotates again and cooperates with the discharging assembly 26 to extrude and discharge the welded brake pad in the fixing assembly 25.

[0032] During use, first, the operator puts the brake pad and brake disc into the inside of the brake pad feeding part 3 and the brake disc feeding part 4 respectively, after the placement is completed, the feeding assembly 24 starts to extend to the inside of the brake pad feeding part 3, under the cooperation of the brake pad feeding part 3, the brake pad falls into the inside of the feeding assembly 24, the feeding assembly 24 retracts, the brake pad is squeezed into the inside of the fixing assembly 25, at the same time, the fixing assembly 25 preliminarily fixes the squeezed brake pad under the cooperation of the limiting assembly 23, then, the motor 21 drives the rotating disc 22, drives the feeding assembly 24 and the fixing assembly 25 to rotate along the top of the discharging assembly 26, so that the feeding assembly 24 and the fixing assembly 25 rotate to the direction perpendicular to the brake disc feeding part 4, the feeding assembly 24 extends again, under the cooperation of the brake disc feeding part 4, the brake disc is retracted and moves into the inside of the fixing assembly 25.

[0033] After the brake disc is squeezed into the fixing assembly 25 by the feeding assembly 24, the brake pad in the middle of the fixing assembly 25 is separated from the brake disc, at the same time, the fixing assembly 25 fixes the combined brake pad and brake disc again, the limiting assembly 23 and the feeding assembly 24 cooperate with the fixing assembly 25 to jointly limit the brake disc and the brake pad in the inside, so as to ensure that the two are combined and assembled stably, then, the motor 21 rotates again, the fixing assembly 25, the feeding assembly 24 and the limiting assembly 23 rotate to the bottom of the welding part 5 together, the welding part 5 welds the combined brake pad and brake disc in the fixing assembly 25 immediately, after the welding is completed, the fixing assembly 25 moves again, under the extrusion of the discharging assembly 26 and the extension of the feeding assembly 24, the welded brake disc in the fixing assembly 25 is released from the limitation, under the extrusion of the discharging assembly 26, the discharging and recycling are completed, so as to realize the whole process of automatic feeding, assembly, welding and discharging.

[0034] Embodiment 2, refer to Figure 1 Figure 4 The second embodiment of the present application is different from the first embodiment in that the brake pad feeding part 3 comprises a feeding piece one 31 fixedly installed on the operation table 1 and used for feeding, a placing piece 32 fixedly installed on the feeding piece one 31 and used for placing the brake pad, a bearing piece 33 slidingly installed on the inner wall of the placing piece 32 and used for limiting the brake pad, and a feeding groove 34 fixedly installed on the feeding piece one 31 and slidingly connected with the extension piece 243 and the clamping plate 246 and used for guiding the brake pad during movement.

[0035] ​Further, compared with embodiment 1, the brake disc feeding part 4 comprises a feeding part two 41 fixedly installed on the operation table 1 and used for feeding the brake disc; a fitting part 42 fixedly installed on the feeding part two 41 and used for limiting when the feeding assembly 24 moves; a fixed plate 43 fixedly installed on the fitting part 42 and used for feeding support; an extrusion part 44 fixedly installed on the fixed plate 43 and used for extruding the feeding; and a pushing plate 45 fixedly installed on the extrusion part 44 and in sliding connection with the fitting part 42, used for pushing the brake disc to move the feeding assembly 24 to feed.

[0036] In use, first, the brake pad is placed in the feeding part two 41, and then the feeding assembly 24 extends to the bottom of the placing part 32, extrudes the receiving part 33, and makes it shrink into the placing part 32, thereby removing the limitation on the brake pad. At this time, the brake pad in the placing part 32 falls into the feeding assembly 24. Then, the feeding assembly 24 retracts backward, the receiving part 33 is extruded, and the brake pad is limited again. The feeding assembly 24 with the falling brake pad returns to the fixed assembly 25. Then, the feeding assembly 24 and the fixed assembly 25 rotate to face the brake disc feeding part 4. The feeding assembly 24 extends along the fitting part 42 again, and under the cooperation of the extrusion part 44 and the pushing plate 45, the brake disc is brought to the fixed assembly 25. The fixed assembly 25 assembles the extruded brake disc and brake pad, thereby completing the assembly of the brake disc. Finally, the welding part 5 is used to weld the assembled brake disc, thereby overcoming the workpiece displacement problem caused by poor clamping positioning adaptability in traditional manual operation and partial automation devices, and ensuring the consistency of the assembly process and the accuracy of the welding position.

[0037] The remaining structure is the same as that of embodiment 1.

[0038] Embodiment 3, with reference to Figures 1 to 9 is the third embodiment of the present application. The difference between this embodiment and the second embodiment is that the feeding assembly 24 comprises an electric push rod 241 fixedly installed on the rotating disc 22 and used for extension movement; a push plate 242 fixedly installed on the output end of the electric push rod 241 and used for connecting the extension part 243; the extension part 243 fixedly installed on the push plate 242 and used for feeding clamping; and a top block 247 fixedly installed on the extension part 243.

[0039] Further, compared with embodiment 2, the inner wall of the extension part 243 is fixedly installed with a coil spring 244 used for contraction and expansion; the other end of the coil spring 244 is fixedly installed with a rotating column 245 used for rotation, and the rotating column 245 is in rotary connection with the extension part 243.

[0040] Further, the outer wall of the rotating column 245 is fixedly installed with a clamping plate 246, and the clamping plate 246 is rotationally connected with the extension piece 243, for clamping and pulling the brake pad and the brake disc.

[0041] Further, the fixing assembly 25 comprises limiting pieces 251 fixedly installed on both sides of the electric push rod 241, for shrink fitting; a connecting bottom plate 252 fixedly installed on the other end of the limiting piece 251, for connecting the moving rod 254; a reset spring I 253 fixedly installed on the inner wall of the connecting bottom plate 252, for clamping and adapting; the moving rod 254 fixedly installed on the reset spring I 253, for clamping the brake pad and the brake disc; and a sliding block 255 fixedly installed on the moving rod 254, the sliding block 255 and the moving rod 254 are both slidingly connected with the connecting bottom plate 252, so that the moving rod 254 can move stably inside the connecting bottom plate 252, the moving rod 254 is fixedly installed with an adjusting piece 256, for fixing and adjusting the buffer; the other end of the adjusting piece 256 is fixedly installed with a brake pad fixing piece 257, for fixing the brake pad; the other end of the brake pad fixing piece 257 is fixedly installed with a brake disc fixing piece 258, for fixing the brake disc, and at the same time, the brake pad and the brake disc are assembled in close contact.

[0042] Further, the blanking assembly 26 comprises a limiting ring 261 fixedly installed on the operation table 1, for guiding when the electric push rod 241 moves; a limiting groove 262 fixedly arranged on the outer wall of the limiting ring 261, for moving the moving shaft 263; a moving shaft 263 slidingly installed inside the limiting groove 262, for moving; a supporting block 264 fixedly installed on the moving shaft 263, for connecting the connecting piece 265; the connecting piece 265 fixedly installed on the supporting block 264, for cooperating with the reset spring II 266 to shrink; the reset spring II 266 fixedly installed on the inner wall of the connecting piece 265, for extruding and buffering; and an extruding piece 267 fixedly installed on the other end of the reset spring II 266, the extruding piece 267 is slidingly connected with the extruding piece 267, for extruding and blanking the brake disc after welding.

[0043] During use, first, the electric push rod 241 is driven, the push plate 242 moves with the extension piece 243 and the clamping plate 246 to the bottom of the placing piece 32, while the top block 247 extrudes the bearing piece 33, the bearing piece 33 shrinks to the inside of the placing piece 32, the brake pads inside the placing piece 32 lose the restriction, and thus fall between the clamping plates 246, then the electric push rod 241 is retracted, the clamping plates 246 move with the brake pads inside to the inside of the brake disc fixing piece 258, while the clamping plates 246 extrude the brake pads into the inside of the brake disc fixing piece 258, then, while the brake disc fixing piece 258 is extruded by the brake pads, the moving rod 254 also starts to extrude the reset spring 253, and moves inside the connecting bottom plate 252, the sliding block 255 further strengthens the movement of the moving rod 254 in the connecting bottom plate 252, under the cooperation of the reset spring 253 and the adjusting piece 256, the brake disc fixing piece 258 preliminarily fixes the brake pads, and the feeding of the brake pads is completed.

[0044] Then, the motor 21 drives the rotating disc 22 to rotate, the electric push rod 241 and the limiting piece 251 rotate with the rotating disc 22, facing the brake disc feeding part 4, the electric push rod 241 is driven again, under the limitation of the abutting piece 42, moves to the direction of the push plate 45, while the brake disc inside the feeding piece two 41 extrudes the clamping plate 246, so that the clamping plate 246 extrudes the coil spring 244 and shrinks in the inside of the extension piece 243, until the clamping plate 246 moves to contact the rear end of the brake disc, the brake disc extrudes the clamping plate 246, the clamping plate 246 moves with the brake disc to the inside of the brake disc fixing piece 258 with the retraction of the electric push rod 241, so that the brake disc is extruded into the inside of the brake disc fixing piece 258, while the brake disc is extruded into the brake disc fixing piece 258, the brake disc extrudes the brake pads to move to the inside of the brake pad fixing piece 257, under the limitation of the reset spring 253 and the spring sheet 233, and under the angle adjustment of the adjusting piece 256, the brake pad fixing piece 257 abuts the brake pads and the brake disc to complete the assembly, while the clamping plate 246 is also fixed outside the brake disc, cooperating with the brake pad fixing piece 257 to fix the brake pads and the brake disc.

[0045] The assembled brake disc is moved to the bottom of the welding part 5 under the driving of the motor 21, the welding part 5 starts to weld the brake disc between the brake pad fixing parts 257, after the welding is completed, the motor 21 is driven again, the electric push rod 241 and the brake pad fixing part 257 rotate together along the limiting ring 261, and at the same time of rotating, the moving rod 254 extrudes the extruding part 267, the extruding part 267 moves along the limiting groove 262, at the same time, the extruding part 267 extrudes the reset spring two 266 to shrink into the inside of the connecting part 265, until the moving rod 254 completes extruding the extruding part 267 and extrudes through the top of the extruding part 267, the extruding part 267 loses extrusion and is pushed out upward under the action of the reset spring two 266, at the same time, the electric push rod 241 drives the extension part 243 again, the extension part 243 is separated from the outer wall of the brake disc, and under the extrusion of the extruding part 267, the welded brake disc is extruded from the brake pad fixing part 257, the welding blanking is completed, the high-precision positioning and stable clamping of the brake pad and the brake disc are realized, the workpiece displacement problem caused by poor clamping positioning adaptability in traditional manual operation and part of the automatic device is effectively overcome, so that the consistency of the assembly process and the accuracy of the welding position are ensured.

[0046] The rest of the structure is the same as that of example 2.

[0047] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A welding device for automotive brake production, characterized by: Including the operating platform (1), Also includes, assembly unit (2), brake pad feeding part (3), brake pad feeding part (4) and welding part (5); The top of the operating platform (1) is fixedly provided with the assembly unit (2), the top of the operating platform (1) is fixedly provided with the brake pad feeding part (3), the top of the operating platform (1) is fixedly provided with the brake pad feeding part (4), and the top of the operating platform (1) is fixedly provided with the welding part (5), and the brake pad feeding part (3) and the brake pad feeding part (4) are fixedly connected with the assembly unit (2); The assembly unit (2) comprises a motor (21) fixedly installed in the operating platform (1), a rotating disc (22) penetratingly and fixedly installed at the output end of the motor (21), a limiting assembly (23) fixedly installed at the other end of the rotating disc (22), an upper feeding assembly (24) fixedly installed on the rotating disc (22), a fixing assembly (25) fixedly installed on the upper feeding assembly (24), and a lower feeding assembly (26) fixedly installed on the operating platform (1), and the lower feeding assembly (26) is slidably connected with the upper feeding assembly (24) and the fixing assembly (25); The upper feeding assembly (24) comprises an electric push rod (241) fixedly installed on the rotating disc (22), a push plate (242) fixedly installed at the output end of the electric push rod (241), an extension piece (243) fixedly installed on the push plate (242), and a top block (247) fixedly installed on the extension piece (243); The inner wall of the extension piece (243) is fixedly installed with a coil spring (244), the other end of the coil spring (244) is fixedly installed with a rotating column (245), and the rotating column (245) is rotatably connected with the extension piece (243), the outer wall of the rotating column (245) is fixedly installed with a clamping plate (246), and the clamping plate (246) is rotatably connected with the extension piece (243); The fixing assembly (25) comprises a limiting piece (251) fixedly installed on both sides of the electric push rod (241), a connecting bottom plate (252) fixedly installed at the other end of the limiting piece (251), a reset spring I (253) fixedly installed on the inner wall of the connecting bottom plate (252), a moving rod (254) fixedly installed on the reset spring I (253), and a sliding block (255) fixedly installed on the moving rod (254), and the sliding block (255) and the moving rod (254) are slidably connected with the connecting bottom plate (252); The lower feeding assembly (26) comprises a limiting ring (261) fixedly installed on the operating platform (1), a limiting groove (262) fixedly provided on the outer wall of the limiting ring (261), a moving shaft (263) slidably installed in the limiting groove (262), a supporting block (264) fixedly installed on the moving shaft (263), a connecting piece (265) fixedly installed on the supporting block (264), a reset spring II (266) fixedly installed on the inner wall of the connecting piece (265), and an extrusion piece (267) fixedly installed at the other end of the reset spring II (266).

2. The welding device for the production of automotive brakes according to claim 1, characterized in that: The limiting assembly (23) comprises a rotating part (231) fixedly installed on the rotating disc (22), a connecting rod (232) fixedly installed on the outer wall of the rotating part (231), and a spring sheet (233) fixedly installed on the connecting rod (232).

3. The welding device for the production of automotive brakes according to claim 2, characterized in that: The moving rod (254) is fixedly installed with an adjusting part (256), the other end of the adjusting part (256) is fixedly installed with a brake pad fixing part (257), and the other end of the brake pad fixing part (257) is fixedly installed with a brake disc fixing part (258).

4. The welding device for the production of automotive brakes according to claim 3, characterized in that: The brake pad feeding part (3) comprises a feeding part one (31) fixedly installed on the operation table (1), a placing part (32) fixedly installed on the feeding part one (31), a receiving part (33) slidingly installed on the inner wall of the placing part (32), and a feeding groove (34) fixedly installed on the feeding part one (31), and the feeding groove (34) is slidingly connected with the extending part (243) and the clamping plate (246).

5. The welding device for the production of automotive brakes according to claim 4, characterized in that: The brake disc feeding part (4) comprises a feeding part two (41) fixedly installed on the operation table (1), a fitting part (42) fixedly installed on the feeding part two (41), a fixed plate (43) fixedly installed on the fitting part (42), an extrusion part (44) fixedly installed on the fixed plate (43), and a pushing plate (45) fixedly installed on the extrusion part (44), and the pushing plate (45) is slidingly connected with the fitting part (42).

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