Unit brake cylinder rear cover assembly welding positioning device

Abstract

The utility model relates to welding technical field especially a unit brake cylinder rear cover composition welding positioning device, in view of unit brake cylinder rear cover composition welding positioning device of prior art's single and inconvenient problem of cleaning welding slag of size adaptation, present and propose following scheme, it includes: support assembly: it includes bottom plate, fixed frame and two placing blocks of fixed in bottom plate top surface, two placing blocks are located two sides of fixed frame respectively, fixed frame is U shape structure, and fixed frame is installed with cleaning block and the connecting assembly for pushing the cleaning block to move on the inner wall of one side opposite opening, positioning mechanism, it is installed in bottom plate top surface and is set up multiple, bottom plate top surface is set up with multiple installation groove for installing positioning mechanism, and installation groove sets up along the radial direction of bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of welding, and in particular to a welding positioning device for a unit brake cylinder rear cover assembly. Background Technology

[0002] The rear cover of a unit brake cylinder generally consists of a rear cover and an L-shaped fixing tube welded to the center of the rear cover. When welding the fixing tube to the rear cover, the fixing tube needs to be aligned first, then the center of the rear cover needs to be aligned with the axis of the short end of the fixing tube, and finally the rear cover needs to be fixed before welding can be carried out.

[0003] Existing devices for fixing the back cover and fixing tube have a relatively simple structure. They typically involve fixing a U-shaped fixing frame on a base plate to hold the fixing tube, and then fixing several sleeves on the base plate to lock the back cover. During fixing, the insertion hole on the back cover is aligned with the sleeve, and finally the insertion rod is pressed into the sleeve through the insertion hole to complete the fixing of the back cover. Although this structure is simple, it is not convenient to clean the welding slag in the fixing frame in a timely manner. Furthermore, it is impossible to adjust the position of the sleeve when the back cover is of different sizes, resulting in the device being too limited in its size compatibility. Therefore, this solution proposes a welding positioning device for the assembly of a unit brake cylinder back cover. Utility Model Content

[0004] This utility model proposes a welding positioning device for the rear cover assembly of a unit brake cylinder, which solves the problems of limited adaptability and inconvenience in cleaning welding slag in the existing welding positioning devices for the rear cover assembly of unit brake cylinders.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding positioning device for a unit brake cylinder rear cover assembly includes:

[0007] Support assembly: It includes a base plate, a fixing frame fixed to the top surface of the base plate and two placement blocks, the two placement blocks being located on both sides of the fixing frame. The fixing frame has a U-shaped structure, and a cleaning block and a connecting component for pushing the cleaning block to move are installed on the inner wall of the side of the fixing frame facing the opening.

[0008] The positioning mechanism is installed on the top surface of the base plate and there are multiple of them. The top surface of the base plate has multiple mounting slots for installing the positioning mechanism, and the mounting slots are arranged in the radial direction of the base plate. The positioning mechanism includes a screw rod rotatably connected in the mounting slot, a screw sleeve threaded around the outer periphery of the screw rod, and a sleeve fixed on the top of the screw sleeve. One end of the screw rod extends to the outer side of the base plate and is fixed with a linkage gear.

[0009] The adjusting mechanism includes a gear ring rotatably sleeved on the outer periphery of the base plate and a limiting component installed on the outer periphery of the gear ring for locking the gear ring, the gear ring being located on top of and meshing with the linkage gear.

[0010] The above technical solution not only allows for the cleaning of welding slag inside the fixed frame after welding, but also facilitates the adjustment of the sleeve position, thus adapting to back covers of different sizes.

[0011] As a further improvement to the above solution, the limiting component includes a positioning post, a fixing plate movably sleeved on the outer periphery of the positioning post, and a spring. The fixing plate is fixedly connected to the outer periphery of the gear ring. A stop block is fixed at the end of the positioning post away from the base plate. The spring is located between the stop block and the fixing plate, and one end of the spring is fixedly connected to the stop block, while the other end of the spring is fixedly connected to the fixing plate. The outer periphery of the base plate is provided with multiple positioning holes that match the positioning post.

[0012] The above technical solution utilizes a positioning pin inserted into a positioning hole to lock the gear ring in place.

[0013] As a further improvement to the above solution, a toggle post is fixedly connected to the outer wall of the fixed plate on the side away from the gear ring, and the toggle post is arranged along the radial direction of the base plate.

[0014] The above technical solution facilitates the rotation of the gear ring by setting up the actuating post.

[0015] As a further improvement to the above solution, the fixed frame has a storage slot for storing the cleaning block on the side facing the opening. The bottom of the cleaning block abuts against the top surface of the base plate, and the two ends of the cleaning block abut against the inner walls of the two sides of the fixed frame, respectively.

[0016] As a further improvement to the above solution, the outer wall of the fixed frame with the storage slot has a connecting hole communicating with the storage slot. The connecting component includes a movable column and a second spring movably sleeved on the outer periphery of the movable column. One end of the movable column passes through the connecting hole and is fixedly connected to the outer wall of the cleaning block. The other end of the movable column is fixed to a fixed block. The second spring is located between the fixed block and the fixed frame, and one end of the second spring is fixedly connected to the fixed block, while the other end of the second spring is fixedly connected to the outer wall of the fixed frame.

[0017] As a further improvement to the above solution, the top surface of the placement block is provided with an arc-shaped groove, and the height of the placement block is lower than the top height of the sleeve. The arc-shaped groove is more suitable for the protruding part at the bottom of the back cover, and the top of the sleeve is higher than the top of the placement frame so that after the bottom of the back cover falls on the top of the placement block, the top of the sleeve can abut against the bottom edge of the back cover.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The cleaning block and connecting components make it easy to clean the welding slag and other debris inside the fixed frame, so that the fixed tube will not be tilted when placed inside the fixed frame due to the presence of debris.

[0020] 2. By coordinating the adjustment mechanism and the positioning mechanism, the specific position of the sleeve can be easily adjusted according to the different sizes of the back cover, so as to conveniently fix back covers of various sizes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the gear ring and the linkage gear;

[0023] Figure 3 This is a structural diagram of the cleaning block and the fixing frame;

[0024] Figure 4 This is a top view of the present invention;

[0025] Figure 5 A schematic diagram of the structure of the rear cover of the unit brake cylinder;

[0026] Figure 6 This is a schematic diagram of the structure when the brake cylinder rear cover of the welding unit is assembled.

[0027] Explanation of key symbols:

[0028] 1. Base plate; 2. Gear ring; 3. Sleeve; 4. Mounting groove; 5. Screw sleeve; 6. Screw; 7. Placement block; 8. Actuating post; 9. Fixing frame; 10. Linkage gear; 11. Positioning hole; 12. Fixing plate; 13. Positioning post; 14. Stop block; 15. Movable post; 16. Cleaning block; 101. Back cover; 102. Fixing tube; 103. Insert rod. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example 1:

[0031] Please combine Figure 1-6 The welding positioning device for a unit brake cylinder rear cover assembly according to this embodiment is characterized by comprising:

[0032] Support assembly: It includes a base plate 1, a fixing frame 9 fixed to the top surface of the base plate 1, and two placement blocks 7. The two placement blocks 7 are located on both sides of the fixing frame 9. The fixing frame 9 has a U-shaped structure. The top surface of the placement blocks 7 has an arc-shaped groove. When welding the back cover assembly, first place the fixing tube 102 inside the fixing frame 9, and make the short end of the fixing tube 102 vertically upward. Then place the back cover 101 on top of the two placement blocks 7. The center of the back cover 101 has a through hole. The arc-shaped groove on the top surface of the placement block 7 matches the protrusion on the bottom surface of the back cover 101. At this time, the short end of the fixing tube 102 is inserted into the through hole. After that, the back cover 101 is fixed, and then the fixing tube 102 and the back cover 101 are welded.

[0033] The positioning mechanism is installed on the top surface of the base plate 1, and multiple such mechanisms are provided. The top surface of the base plate 1 has multiple mounting slots 4 for installing the positioning mechanisms, and the mounting slots 4 are arranged radially along the base plate 1. The positioning mechanism includes a screw 6 rotatably connected within the mounting slot 4, a threaded sleeve 5 threaded onto the outer circumference of the screw 6, and a sleeve 3 fixed to the top of the threaded sleeve 5. The side wall of the sleeve 3 abuts against the side wall of the mounting slot 4, thereby preventing it from rotating during the rotation of the screw 6. One end of the screw 6 extends to the outer side of the base plate 1 and is fixed with a linkage gear 10. The height of the placement block 7 is lower than the top height of the sleeve 3. When the rear cover 101 is placed on two placement blocks 7... The top of the sleeve 3 abuts against the edge of the bottom surface of the rear cover 101. The top edge of the rear cover 101 has multiple insertion holes. When fixing the rear cover 101, first align the sleeve 3 with one of the insertion holes, and then use the insertion rod 103 to pass through the insertion hole and insert it into the sleeve 3 at its bottom, so that the rear cover 101 can be covered. To prevent the rear cover 101 from rotating, at least two insertion rods 103 are inserted into two sleeves 3 respectively. Then the fixing tube 102 and the rear cover 101 can be welded. After the welding is completed, the insertion rod 103 is pulled out to the outside of the sleeve 3. Finally, the welded rear cover assembly can be removed from the support assembly.

[0034] The adjustment mechanism includes a gear ring 2 rotatably sleeved on the outer periphery of the base plate 1 and a limiting component installed on the outer periphery of the gear ring 2 for locking the gear ring 2. The gear ring 2 is located on top of the linkage gear 10 and meshes with it. The positions of the insertion holes on the back cover 101 of different sizes are different. Therefore, the position of the sleeve 3 needs to be adjusted accordingly before fixing. After the gear ring 2 rotates, it will drive the screws 6 in multiple positioning mechanisms to rotate. The rotation of the screws 6 is used to drive the sleeve 3 to move along the length direction of the mounting groove 4. When the gear ring 2 rotates clockwise, it will drive the multiple screws 6 to rotate in the forward direction. The screw sleeves 5 on the outer periphery of the screws 6 will move towards the side closer to the center of the base plate 1, thereby driving the sleeve 3 to move synchronously. This can be adapted to fix the back cover 101 with a smaller size. When the back cover 101 is larger, the sleeve 3 needs to be moved away from the center of the base plate 1. At this time, the gear ring 2 can be rotated counterclockwise.

[0035] The limiting assembly includes a positioning post 13, a fixing plate 12 movably sleeved on the outer periphery of the positioning post 13, and a spring. The fixing plate 12 is fixedly connected to the outer periphery of the gear ring 2. A stop block 14 is fixed to the end of the positioning post 13 away from the base plate 1. The spring is located between the stop block 14 and the fixing plate 12, with one end of the spring fixedly connected to the stop block 14 and the other end of the spring fixedly connected to the fixing plate 12. The outer periphery of the base plate 1 has multiple positioning holes 11 that match the positioning post 13, and the spacing between adjacent positioning holes 11 is the same. When the gear ring 2 rotates, a toggle post 8 is fixedly connected to the outer wall of the fixing plate 12 on the side away from the gear ring 2. The gear ring 2 is set radially along the base plate 1. It can be rotated by holding the actuating pin 8. Before rotating the gear ring 2, one end of the positioning pin 13 needs to be pulled out to the outside of the positioning hole 11 before the gear ring 2 can be rotated. The distance between the two positioning holes 11 represents a size of back cover. According to the size of the back cover 101, the positioning pin 13 can be inserted into the corresponding positioning hole 101 after rotating the gear ring 2. Under the action of the spring, the positioning pin 13 will fall into the positioning hole 101 and will not cause the gear ring 2 to rotate. After the external adjustment of the sleeve 3 is completed, the back cover can be fixed.

[0036] Example 2:

[0037] Combination Figure 1 , Figure 3 and Figure 4 This embodiment is further improved on the basis of embodiment 1 in that: a cleaning block 16 and a connecting component for moving the cleaning block 16 are installed on the inner wall of the side of the fixed frame 9 facing the opening. A storage groove for storing the cleaning block 16 is opened on the side of the fixed frame 9 facing the opening. The bottom of the cleaning block 16 abuts against the top surface of the base plate 1, and the two ends of the cleaning block 16 abut against the inner walls of the two sides of the fixed frame 9 respectively. The cleaning block 16 is stored in the storage groove, thereby avoiding the cleaning block 16 from occupying the placement space of the fixed tube 102 by being located inside the fixed frame 9. When there is debris such as welding slag inside the fixed frame 9, the cleaning block 16 can be moved to the outside of the fixed frame 9, thereby pushing the debris inside the fixed frame 9 to the outside of the fixed frame 9, avoiding the debris from affecting the placement of the fixed tube 102, and achieving the purpose of convenient cleaning of debris.

[0038] The outer wall of the fixed frame 9, which has a storage slot, has a connecting hole that communicates with the storage slot. The connecting component includes a movable column 15 and a spring 2 that is movably sleeved on the outer periphery of the movable column 15. One end of the movable column 15 passes through the connecting hole and is fixed to the outer wall of the cleaning block 16. The other end of the movable column 15 is fixed to a fixed block. The spring 2 is located between the fixed block and the fixed frame 9, with one end of the spring 2 fixed to the fixed block and the other end fixed to the outer wall of the fixed frame 9. When pushing the cleaning block 16 outwards from the fixed frame 9, simply press the movable column 15 toward one side of the opening of the fixed frame 9 to move the cleaning block 16 outwards from the fixed frame 9. At this time, the spring 2 is compressed. After releasing the movable column 15, the spring 2 returns to its original deformation, thereby automatically moving the cleaning block 16 back into the storage slot, thus achieving the purpose of conveniently moving the cleaning block 16.

[0039] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A welding positioning device for a unit brake cylinder rear cover assembly, characterized in that, include: Support assembly: It includes a base plate, a fixed frame fixed to the top surface of the base plate, and two placement blocks. The two placement blocks are located on both sides of the fixed frame. The fixed frame has a U-shaped structure, and a cleaning block and a connecting component for pushing the cleaning block are installed on the inner wall of the side of the fixed frame facing the opening. A storage slot for storing the cleaning block is opened on the side of the fixed frame facing the opening. The bottom of the cleaning block abuts against the top surface of the base plate, and both ends of the cleaning block abut against the inner walls of both sides of the fixed frame. A connecting hole communicating with the storage slot is opened on the outer wall of the fixed frame on the side with the storage slot. The connecting component includes a movable column and a second spring movably sleeved on the outer periphery of the movable column. One end of the movable column passes through the connecting hole and is fixed to the outer wall of the cleaning block. The other end of the movable column is fixed to the fixed block. The second spring is located between the fixed block and the fixed frame, and one end of the second spring is fixed to the fixed block, and the other end of the second spring is fixed to the outer wall of the fixed frame. The positioning mechanism is installed on the top surface of the base plate and there are multiple of them. The top surface of the base plate has multiple mounting slots for installing the positioning mechanism, and the mounting slots are arranged in the radial direction of the base plate. The positioning mechanism includes a screw rod rotatably connected in the mounting slot, a screw sleeve threaded around the outer periphery of the screw rod, and a sleeve fixed on the top of the screw sleeve. One end of the screw rod extends to the outer side of the base plate and is fixed with a linkage gear. The adjusting mechanism includes a gear ring rotatably sleeved on the outer periphery of a base plate and a limiting component installed on the outer periphery of the gear ring for locking the gear ring. The gear ring is located on top of and meshes with a linkage gear. The limiting component includes a positioning post, a fixing plate movably sleeved on the outer periphery of the positioning post, and a spring. The fixing plate is fixedly connected to the outer periphery of the gear ring. A stop block is fixed at the end of the positioning post away from the base plate. The spring is located between the stop block and the fixing plate, with one end of the spring fixedly connected to the stop block and the other end of the spring fixedly connected to the fixing plate. The outer periphery of the base plate has multiple positioning holes that match the positioning post.

2. The welding positioning device for the rear cover assembly of a unit brake cylinder according to claim 1, characterized in that, A toggle post is fixed to the outer wall of the fixed plate on the side away from the gear ring, and the toggle post is arranged in the radial direction of the base plate.

3. The welding positioning device for the rear cover assembly of a unit brake cylinder according to claim 1, characterized in that, The top surface of the placement block has an arc-shaped groove, and the height of the placement block is lower than the top height of the sleeve.

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