A welding fixture for electromagnetic valve seat bracket

Abstract

The present invention relates to the field of welding technology, and specifically discloses a welding fixture for an electromagnetic valve seat bracket. A clamping piece for clamping an outer shell and driving the outer shell to rotate, a material rack for loading the bracket, and a clamping assembly for controlling the positioning of the bracket and the outer shell are provided on a base frame. The clamping assembly includes a rod one connected to the material rack for sliding and rotation through an elastic member one, an outer clamp connected to the material rack for sliding and rotation through an elastic member two, a slideway for moving the rod one and the bracket is provided on the material rack, the end of the rod one has a cone portion, a limiting portion, a mounting portion, and a matching portion coaxially arranged in sequence, an inner clamp is provided in the mounting portion for sliding along its radial direction through an elastic member three, a matching rod is provided in the mounting portion for sliding through an elastic member four, a rack for driving the outer clamp to rotate is slidably provided on the material rack, and the rack is rotationally connected to the rod one. The present invention is conducive to accurately clamping the outer shell and the bracket to facilitate smooth welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding fixture for a solenoid valve seat bracket. Background Art

[0002] Electromagnetic shock absorber is a new type of intelligent independent suspension system that uses electromagnetic reaction. It uses multiple sensors to detect road conditions and various driving conditions, transmits them to the electronic controller ECU, and controls the electromagnetic shock absorber to react instantly, suppress vibration, and maintain vehicle body stability, especially when the vehicle speed is very high and suddenly encounters obstacles.

[0003] A Chinese patent with announcement number CN220128006U discloses a fixing device for welding a stabilizer bar bracket to a shock absorber sleeve, including a base plate, a plurality of supporting members installed on the base plate, and the supporting members are used to support the shock absorber sleeve, a positioning member installed on the base plate, and the positioning member is used to position the solenoid valve on the shock absorber sleeve, a clamping member installed on the base plate, and the clamping member is used to clamp the shock absorber sleeve, and a limiting member installed on the base plate, and the limiting member is used to limit the stabilizer bar bracket.

[0004] During the implementation of the above technical solution, the product is placed against the V-groove of the fixing block, and then the slider is slid so that the positioning rod is inserted into the interior of the already welded solenoid valve to achieve the positioning of the shock absorber sleeve. The shock absorber sleeve is clamped by the first quick clamp to fix the shock absorber sleeve. Then the stabilizer bar bracket is placed on the accommodating groove, the hole on the stabilizer bar bracket is positioned by the positioning hole block, and the stabilizer bar bracket is clamped by the second quick clamp, so that the product can achieve the purpose of welding the stabilizer bar bracket.

[0005] Since the bracket for installing the solenoid valve seat is cylindrical, it is necessary to accurately position the bracket and the shock absorber housing when welding. In addition, in order to improve the welding quality, a weld needs to be reserved between the bracket and the shock absorber housing, thereby ensuring the structural strength of the welded joint, helping to balance the stress during the welding process, and reducing the occurrence of welding defects. However, the above technical solution makes it difficult to accurately clamp the bracket and the shock absorber housing, which is not convenient for accurate positioning of the bracket and the shock absorber housing, and is not conducive to smooth welding. Summary of the invention

[0006] The present invention provides a solenoid valve seat bracket welding fixture, aiming to solve the problem in the above technology that it is difficult to accurately clamp the bracket and the shock absorber housing, and it is not convenient to accurately position the bracket and the shock absorber housing.

[0007] A welding fixture for a solenoid valve seat bracket comprises a base frame, the base frame is provided with a clamping piece for clamping a shell and driving the shell to rotate, a material rack for loading the bracket, and a clamping assembly for controlling the positioning of the bracket and the shell, the shell is provided with a matching hole that matches the bracket; the clamping assembly comprises a rod 1 connected to the material rack for sliding and rotation through an elastic member 1, an outer clamp connected to the material rack for sliding and rotation through an elastic member 2, the material rack is provided with a slideway for moving the rod 1 and the bracket, the end of the rod 1 is provided with a cone portion, a limit portion, a mounting portion and a matching portion coaxially arranged in sequence, and the mounting portion is provided with an elastic member An inner clamp is provided along its radial sliding direction, a matching rod is provided in the installation part through the elastic part four, a rack is provided on the material rack for driving the outer clamp to rotate, the rack is rotatably connected with the rod one, and when the bracket is sleeved on the outer periphery of the rod one and stops at the matching part, the matching rod can drive the inner clamp to stop at the inner side of the bracket to clamp the bracket, and when the bracket corresponds accurately to the outer shell and the rod one moves in the direction away from the outer shell, the outer clamp can clamp the bracket and move with the rod one; through the clamping operation of the bracket by the clamping assembly, the bracket and the outer shell can correspond accurately, and the welding seam can be reserved, which is conducive to the smooth welding.

[0008] Preferably, the radius of the limiting portion is consistent with that of the matching hole and is larger than the mounting portion and smaller than the matching portion.

[0009] Preferably, the bottom of the slide has an arc groove, rod one is coaxial with the arc groove, the outer diameter of the bracket is consistent with the radius of the arc groove, the radius of the matching part is smaller than the outer diameter of the bracket, and the axis of the matching hole and the axis of the bracket are located in the same plane.

[0010] Preferably, one end of the mating rod has a slide plate which slides coaxially with the mating part, the side of the slide plate facing the mating rod has a push rod which is slidably connected with the mating part, the other end of the mating rod has a supporting part, and the end of the inner clamp close to the mating rod has a stop surface which cooperates with the supporting part, when the bracket stops with the mating part, the inner clamp can clamp the bracket so that rod one can drive the bracket to rotate.

[0011] Preferably, a slider is provided inside the material rack for sliding along its length extension direction, an axis rod is rotatably provided on the slider through elastic member 5, an outer clamp is fixedly connected to the axis rod, a gear matching with the rack is rotatably provided on the axis rod through a one-way bearing, and by providing the one-way bearing, when the rod moves in a direction away from the outer shell, the outer clamp can clamp the bracket.

[0012] Preferably, annular plates are fixedly provided at both ends of the elastic member, one of the annular plates is rotatably connected to the matching portion, and the other annular plate is rotatably connected to the material rack.

[0013] Preferably, one side of the material rack has a loading trough connected to the slide and arranged obliquely, a baffle is provided on the material rack for sliding in the vertical direction through an elastic member six, the baffle is located at the inclined end of the loading trough, a guide surface is provided on the baffle, and a driving block matching the guide surface is provided on the material rack for sliding along its length extension direction, when the rod moves in a direction away from the outer shell, the matching part can stop the driving block to move the baffle downward, and the setting of the baffle is conducive to the brackets in the loading trough to roll into the slide one by one.

[0014] Preferably, a driving shaft is rotatably provided on the base frame, the driving shaft is slidably connected to rod one and can drive rod one to rotate, and a motor one for driving the driving shaft to rotate is installed on the base frame.

[0015] Preferably, a second motor is mounted on the base frame, a rocker arm is rotatably provided at the output end of the second motor, a ring seat is rotatably provided at the end of the first rod, the rack is fixedly connected to the ring seat, a second rod cooperating with the rocker arm is fixedly provided on the ring seat, and when the rocker arm rotates, the second rod can be driven to move, thereby driving the first rod to slide.

[0016] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: after the rod 1 is inserted into the bracket, the bracket and the matching hole can be accurately aligned by controlling the rotation of the clamping piece, and then the arc section of the welding end of the bracket can be completely fitted with the outer side of the shell by rotating the rod 1, and then when the rod 1 moves a certain distance away from the shell, the rod 1 can drive the bracket to move away from the shell by the distance of a weld, thereby achieving accurate positioning of the bracket and the shell, and then facilitating smooth welding, and the reserved weld is conducive to ensuring the structural strength of the welded joint, and helps to balance the stress during the welding process and reduce the occurrence of welding defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the clamping member, the material rack and the mechanical arm of the present invention.

[0019] Figure 3 It is a schematic diagram of the coordination of the housing, rod 1, material rack and driving shaft of the present invention.

[0020] Figure 4 It is a schematic diagram of the position of the material rack in the initial state of the present invention.

[0021] Figure 5 It is an exploded view of the inner clamp and the matching rod of the present invention.

[0022] Figure 6 It is an exploded view of the gear, one-way bearing, outer clamp and slider along the axial direction of the shaft rod of the present invention.

[0023] Figure 7It is a schematic diagram of the cooperation between the baffle and the material rack of the present invention.

[0024] Figure 8 It is a cross-sectional view of a material rack of the present invention.

[0025] Fig. 9 It is a schematic diagram of the cooperation between the baffle and the driving block of the present invention.

[0026] Fig.10 It is a schematic structural diagram of the arc section of the welding end of the bracket of the present invention when it is completely fitted with the outer side surface of the shell.

[0027] Fig.11 It is a schematic structural diagram of a case where a weld is reserved between the arc section of the welding end of the bracket and the outer side surface of the shell of the present invention.

[0028] Reference numerals: 10, base frame; 11, clamping member; 12, material rack; 120, slide groove; 121, elastic member 1; 1211, ring plate; 122, arc groove; 123, upper material trough; 21, rod 1; 211, cone; 212, limiter; 213, mounting portion; 214, matching portion; 22, inner clamp; 220, stop surface; 221, elastic member 3; 23, matching rod; 230, elastic member 4; 231, slide plate; 232, ejector; 233, The top holding part; 24, the outer clamp; 241, the elastic part 2; 25, the slider; 250, the shaft; 251, the elastic part 5; 26, the gear; 261, the one-way bearing; 27, the ring seat; 271, the rod 2; 272, the rack; 31, the housing; 311, the matching hole; 32, the bracket; 41, the baffle; 411, the guide surface; 42, the elastic part 6; 43, the driving block; 50, the motor 1; 51, the driving shaft; 52, the motor 2; 53, the rocker arm; 60, the robot arm. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figure 1-Figure 4 As shown, a solenoid valve seat bracket welding fixture includes a base frame 10, on which is provided a clamping member 11 for clamping a shell 31 and driving the shell 31 to rotate, a material rack 12 for feeding the bracket 32, and a clamping assembly for controlling the positioning of the bracket 32 ​​and the shell 31, the shell 31 has a matching hole 311 that matches the bracket 32, and the welding end of the bracket 32 ​​has an arc section.

[0031] like Figure 2-Figure 11As shown, the clamping assembly includes a rod 21 connected to the material rack 12 by sliding and rotating through an elastic member 121, and an outer clamp 24 connected to the material rack 12 by sliding and rotating through an elastic member 241. The elastic member 121 is specifically a first spring, and the elastic member 241 is specifically a second spring. A driving shaft 51 is rotatably provided on the base frame 10. The driving shaft 51 is slidably connected to the rod 21 and can drive the rod 21 to rotate. The driving shaft 51 and the rod 21 are matched in the form of an existing spline shaft and a spline sleeve. A motor 50 for driving the driving shaft 51 to rotate is installed on the base frame 10. The material rack 12 is provided with a slideway for moving the rod 21 and the bracket 32. The bottom of the slideway has an arc groove 122. The rod 21 and the arc groove 12 2 is coaxial, the outer diameter of the bracket 32 ​​is consistent with the radius of the arc groove 122, the end of the rod 121 has a cone portion 211, a limiting portion 212, a mounting portion 213 and a matching portion 214 which are coaxially arranged in sequence, the radius of the limiting portion 212 is consistent with the matching hole 311 and is larger than the mounting portion 213 and smaller than the matching portion 214, and the radius of the matching portion 214 is smaller than the outer diameter of the bracket 32. It should be noted that annular plates 1211 are fixedly provided at both ends of the elastic member 121, one of which is rotatably connected to the matching portion 214, and the other is rotatably connected to the material rack 12. When the bracket 32 ​​enters the arc groove 122 and the housing 31 is clamped by the clamping member 11, the axis of the matching hole 311 and the axis of the bracket 32 ​​are located in the same plane.

[0032] An inner clamp 22 is provided in the mounting portion 213 by means of an elastic member 3 221 which slides radially thereof. A plurality of inner clamps 22 are provided circumferentially of the mounting portion 213. The elastic member 3 221 is specifically a third spring. A matching rod 23 is provided in the mounting portion 213 by means of an elastic member 4 230 which slides therein. The elastic member 4 230 is specifically a fourth spring. One end of the matching rod 23 has a slide plate 231 which slides coaxially with the matching portion 214. The side of the slide plate 231 which faces the matching rod 23 has a top rod 232 which is slidably connected to the matching portion 214. The other end of the matching rod 23 has a top holding portion 233. The end of the inner clamp 22 close to the matching rod 23 has a top holding portion 233 which is connected to the top holding portion 234. 33 cooperates with the stop surface 220. In the initial state, the push rod 232 extends outward from the matching portion 214 under the action of the elastic member 230. When the bracket 32 ​​enters the slideway, as the rod 21 moves toward the direction close to the outer shell 31, the cone 211, the limiting portion 212 and the mounting portion 213 can enter the inner ring side of the bracket 32. When the bracket 32 ​​stops with the matching portion 214, the push rod 232 is pushed by the bracket 32 ​​to make the matching rod 23 slide, and then the supporting portion 233 can stop with the stop surface 220, so that the multiple inner clamps 22 can slide and stop with the inner side of the bracket 32 ​​to achieve clamping of the bracket 32.

[0033] A motor 2 52 is mounted on the base frame 10, a swing rod 53 is rotatably provided at the output end of the motor 2 52, a ring seat 27 is rotatably provided at the end of the rod 1 21 away from the housing 31, a rod 271 is fixedly provided on the ring seat 27 to cooperate with the swing rod 53, and a rack 272 is also fixedly provided to be slidably connected to the material rack 12, the swing rod 53 can stop the rod 271 when rotating, so that the rod 271 drives the rod 1 21 to move, a slide groove 120 is provided in the material rack 12 along its length extension direction, a matching groove connected to the slide groove 120 and used for the swing of the outer clamp 24 is provided at the bottom of the slide, a slider 25 is slidably provided in the slide groove 120 along its length extension direction through the elastic member 241, a shaft rod 250 is rotatably provided on the slider 25 through the elastic member 5 251, and the elastic member 5 251 is specifically a torsion spring, The two ends of the torsion spring are fixedly connected to the slider 25 and the shaft rod 250 respectively, and the outer clamp 24 is fixedly connected to the shaft rod 250. A gear 26 that cooperates with the rack 272 is rotatably provided on the shaft rod 250 through a one-way bearing 261. In the initial state, the outer clamp 24 is received in the matching groove under the action of the elastic member 5 251. When the rod 1 21 moves toward the direction close to the outer shell 31, the rack 272 drives the gear 26 to rotate, and the shaft rod 250 does not rotate. When the rod 1 21 moves toward the direction away from the outer shell 31, the rack 272 drives the gear 26 to rotate, and the shaft rod 250 can also rotate and make the outer clamp 24 rotate, so that the outer clamp 24 and the outer peripheral surface of the bracket 32 ​​are stopped. At this time, under the action of the limiting portion 212, the outer clamp 24 can clamp the bracket 32.

[0034] One side of the material rack 12 is provided with a loading trough 123 which is connected to the slide and is inclined. A baffle 41 is provided on the material rack 12 to slide in the vertical direction through an elastic member 6 42. The elastic member 6 42 is specifically a sixth spring. The baffle 41 is located at the inclined end of the loading trough 123. The baffle 41 has a guide surface 411. A driving block 43 cooperating with the guide surface 411 is slidably provided on the material rack 12 along its length extension direction. When the rod 21 moves in a direction away from the outer shell 31, the matching portion 214 can stop the driving block 43 to move the baffle 41 downward. At this time, the elastic member 6 42 is compressed, and the bracket 32 ​​located in the loading trough 123 can roll into the arc groove 122 at the bottom of the slide. When the rod 21 moves in a direction close to the outer shell 31, under the action of the elastic member 6 42, the baffle 41 moves upward to prevent the bracket 32 ​​in the loading trough 123 from entering the slide.

[0035] In the initial state, the swing rod 53 and the second rod 271 are stopped, and the elastic member 121 is in a compressed state. At this time, the bracket 32 ​​in the loading chute 123 can enter the slideway.

[0036] It should be noted that a robot arm 60 for welding is provided on the base frame 10, and the clamping member 11 adopts an existing rotatable three-jaw chuck.

[0037] Specific working principle: Reference Figure 1-Figure 11 First, the outer shell 31 is clamped and fixed by the clamping member 11, and then the rocker arm 53 is controlled to rotate in the positive direction so that the rod 21 moves away from the outer shell 31, until the baffle 41 moves down and a bracket 32 ​​in the loading chute 123 enters the arc groove 122 of the slideway, and the elastic member 121 is compressed.

[0038] Then, the swing rod 53 is controlled to rotate in the opposite direction so that the swing rod 53 is completely out of contact with the rod 271. During this process, under the action of the elastic member 121, the rod 21 moves toward the direction close to the outer shell 31, and the cone 211, the limiting portion 212 and the mounting portion 213 enter the inner ring side of the bracket 32. If the limiting portion 212 and the matching hole 311 do not correspond to each other, the cone 211 will stop against the outer wall of the outer shell 31. Next, the clamping member 11 is controlled to rotate slowly. When the cone 211 and the limiting portion 212 enter the matching hole 311, the clamping member 11 is controlled to stop rotating. At this time, under the action of the elastic member 121, the bracket 32 ​​stops against the matching portion 214, and the multiple inner clamps 22 can stop against the inner side of the bracket 32 ​​to clamp the bracket 32. Then, the motor 50 is controlled to rotate slowly, and the rod 21 can drive the bracket 32 ​​to rotate. When the arc section of the welding end of the bracket 32 ​​is completely aligned with the outer side surface of the outer shell 31 When fitting, the motor 50 is controlled to stop rotating, and then the rocker arm 53 is controlled to rotate in the forward direction, so that the rod 21 moves a certain distance away from the outer shell 31. During this process, the bracket 32 ​​and the matching portion 214 are disengaged from the stop, and the multiple inner clamps 22 are respectively disengaged from the inner side of the bracket 32. The rack 272 drives the gear 26 to rotate, so that the outer clamp 24 gradually approaches the outer peripheral surface of the bracket 32. When the cone 211 completely enters the inner side of the bracket 32, the outer clamp 24 and the outer peripheral surface of the bracket 32 ​​are stop. At this time, under the action of the limiting portion 212, the outer clamp 24 can clamp the bracket 32, so that the rod 21 can drive the bracket 32 ​​to move a distance of a weld seam in the direction away from the outer shell 31. The slider 25 slides a distance of a weld seam in the slide groove 120 and the elastic member 241 is compressed. At this time, the rocker arm 53 is controlled to stop rotating, and the rack 272 is about to disengage from the gear 26.

[0039] Next, the robot arm 60 is controlled to weld the bracket 32 ​​and the shell 31. After welding is completed, the rocker arm 53 is controlled to rotate in the opposite direction so that the rod 21 moves a certain distance toward the shell 31, so that the outer clamp 24 is released from the clamping of the bracket 32. Then, the clamping member 11 is controlled to release the clamping of the shell 31, so as to facilitate the removal of the welded bracket 32 ​​and the shell 31. Then, the rocker arm 53 is controlled to rotate forward so that the rod 21 moves away from the shell 31 and resets to the initial state.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A solenoid valve seat bracket welding fixture, comprising a base frame, characterized in that: The base frame is provided with a clamping member for clamping the housing and driving the housing to rotate, a material rack for loading the bracket, and a clamping assembly for controlling the positioning of the bracket and the housing, and the housing is provided with a matching hole for matching with the bracket; The clamping assembly includes a rod 1 connected to the material rack by sliding and rotating through an elastic member 1, an outer clamp connected to the material rack by sliding and rotating through an elastic member 2, a slideway for the movement of the rod 1 and the bracket on the material rack, an end of the rod 1 having a cone, a limit portion, a mounting portion and a matching portion coaxially arranged in sequence, an inner clamp is provided in the mounting portion by sliding along its radial direction through an elastic member 3, a matching rod is provided in the mounting portion by sliding through an elastic member 4, a rack for driving the outer clamp to rotate is slidably provided on the material rack, the rack is rotatably connected to the rod 1, when the bracket is sleeved on the outer periphery of the rod 1 and stops at the matching portion, the matching rod can drive the inner clamp to stop at the inner side of the bracket to clamp the bracket, and when the bracket accurately corresponds to the outer shell and the rod 1 moves in a direction away from the outer shell, the outer clamp can clamp the bracket and move with the rod 1; A driving shaft is rotatably provided on the base frame, the driving shaft is slidably connected to the rod 1 and can drive the rod 1 to rotate, and a motor 1 for driving the driving shaft to rotate is installed on the base frame; The base frame is equipped with a second motor, a swing rod is rotatably provided at the output end of the second motor, a ring seat is rotatably provided at the end of the first rod, the rack is fixedly connected to the ring seat, and a second rod matched with the swing rod is fixedly provided on the ring seat.

2. The solenoid valve seat bracket welding fixture according to claim 1 is characterized in that: The radius of the limiting portion is consistent with that of the matching hole and is larger than the mounting portion and smaller than the matching portion.

3. The solenoid valve seat bracket welding fixture according to claim 1, characterized in that: The bottom of the slideway has an arc groove, rod one is coaxial with the arc groove, the outer diameter of the bracket is consistent with the radius of the arc groove, the radius of the matching part is smaller than the outer diameter of the bracket, and the axis of the matching hole and the axis of the bracket are located in the same plane.

4. The solenoid valve seat bracket welding fixture according to claim 1, characterized in that: One end of the mating rod has a slide plate that slides coaxially with the mating part, the side of the slide plate facing the mating rod has a push rod that is slidably connected to the mating part, the other end of the mating rod has a support part, and the end of the inner clamp close to the mating rod has a stop surface that cooperates with the support part.

5. The solenoid valve seat bracket welding fixture according to claim 1, characterized in that: A slider is provided inside the material rack for sliding along its length extension direction, a shaft rod is rotatably provided on the slider through an elastic member 5, an outer clamp is fixedly connected to the shaft rod, and a gear matched with a rack is rotatably provided on the shaft rod through a one-way bearing.

6. The solenoid valve seat bracket welding fixture according to claim 1, characterized in that: Ring plates are fixedly provided at both ends of the elastic member 1, one of the ring plates is rotatably connected to the matching portion, and the other ring plate is rotatably connected to the material rack.

7. The solenoid valve seat bracket welding fixture according to claim 1, characterized in that: One side of the material rack is provided with a loading trough connected to the slide and arranged obliquely. A baffle is provided on the material rack for sliding in the vertical direction through an elastic member 6. The baffle is located at the inclined end of the loading trough. A guide surface is provided on the baffle. A driving block matching the guide surface is provided on the material rack for sliding along its length extension direction. When the rod moves in a direction away from the outer shell, the matching portion can stop the driving block to move the baffle downward.

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