Assembling and welding tool for damping roller carrier shaft assembly

Abstract

The utility model relates to an assembling and welding tool for a damping carrier roller shaft assembly, and belongs to the technical field of assembling and welding tools. Comprising a base, a fixed center pedestal and a movable center pedestal which are oppositely distributed are arranged on the base, a fixed center is fixedly arranged on the fixed center pedestal, a movable center is arranged on the movable center pedestal in a sliding mode, and two supporting blocks are arranged on the portion, between the fixed center pedestal and the movable center pedestal, of the base. The fixed center pedestal, the movable center pedestal and the supporting block are all connected with the base through a locking mechanism. The upper end of each supporting block is provided with a V-shaped groove, and the end faces of the sides, away from each other, of the two supporting blocks are each fixedly provided with a positioning plate. The problem that an existing damping carrier roller shaft assembly is not provided with a corresponding assembling and welding tool is solved.

Description

Technical Field

[0001] This utility model belongs to the field of welding fixture technology, specifically relating to a welding fixture for a damping idler roller shaft assembly. Background Technology

[0002] A damping idler is a type of idler that uses its internal damping device to convert the kinetic energy of a conveyor belt into heat energy or other dissipable energy. This effectively reduces the operating speed of a conveyor belt and ensures its safe operation. A damping idler consists of a welded roller body assembly, a shaft assembly, bearings, and a sealing assembly, with the shaft assembly being the core component (e.g., ...). Figure 7 As shown in the figure, the radial runout measurement is required to be no greater than 0.4mm. Damping idlers are a new product with no readily available processing methods. Based on the product's structure and performance characteristics, and within existing processing conditions, processing tooling and a processing plan need to be designed to ensure the product's functionality and performance requirements are met. Utility Model Content

[0003] This invention overcomes the shortcomings of the prior art by proposing a welding fixture for damping idler roller shaft assemblies, thus solving the problem that there is currently no corresponding welding fixture for damping idler roller shaft assemblies.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] A welding fixture for a damping idler roller shaft assembly includes a base, on which are arranged relatively distributed fixed center platforms and movable center platforms. Fixed centers are fixedly mounted on the fixed center platforms, and movable centers are slidably mounted on the movable center platforms. Two support blocks are arranged on the base between the fixed center platforms and the movable center platforms. The fixed center platforms, movable center platforms, and support blocks are all connected to the base through a locking mechanism. Each support block has a V-groove at its upper end, and a positioning plate is fixedly mounted on the side end face of the two support blocks that are far apart from each other.

[0006] Furthermore, a sliding groove is provided on the upper surface of the base, and the sliding groove is a T-shaped groove structure.

[0007] Furthermore, the lower end surfaces of the fixed and movable center plates are in contact with the upper end surface of the base; and a locking hole that runs vertically through the base plates of the fixed and movable center plates is provided respectively.

[0008] Furthermore, the lower end face of the support block is in contact with the upper end face of the base, and a horizontal fixing plate is fixedly installed at the lower edge of the side end face of the two support blocks that are far apart from each other. A locking hole that runs vertically through the center of the fixing plate is provided.

[0009] Furthermore, the locking mechanism includes a locking bolt and a locking nut. The head of the locking bolt is slidably engaged inside the groove, and one end of the locking bolt's screw passes vertically upward through the locking hole and is screwed with a locking nut.

[0010] Furthermore, a fixed center mounting hole with both ends through is provided at the upper end of the fixed center platform. A retaining ring is fixedly sleeved on the outer side of the fixed center. One end of the fixed center is a spike, and the other end of the fixed center is a screw. One end of the screw of the fixed center is inserted into the fixed center mounting hole from the end of the fixed center mounting hole near the movable center platform and passes through the fixed center mounting hole. The retaining ring contacts the end face of the fixed center platform near the movable center platform. A retaining nut is screwed to one end of the screw of the fixed center, thereby fixing the fixed center to the fixed center platform.

[0011] Furthermore, a movable center mounting hole with both ends through is provided at the upper end of the movable center platform. The inner wall of the movable center mounting hole has a large inner diameter section and a small inner diameter section connected together, with the large inner diameter section located on the side closer to the fixed center platform. The movable center is slidably disposed inside the movable center mounting hole. One end of the movable center is a spike, and the other end is a screw. An outer expansion ring is fixedly sleeved on the outer side of the movable center near the spike. One end of the screw of the movable center is inserted into the movable center mounting hole from the large inner diameter section and passes through the movable center mounting hole. The outer expansion ring on the outside of the movable center is located inside the large inner diameter section. A working nut is screwed to one end of the screw of the movable center. A spring is sleeved on the outside of the movable center. The spring is located inside the large inner diameter section. One end of the spring is connected to the outer expansion ring, and the other end of the spring is connected to the inner wall of the large inner diameter section.

[0012] Furthermore, a retaining ring is fixedly installed on the outer side of the opening of the small inner diameter section of the movable tip mounting hole. The retaining ring is sleeved on the outer side of the movable tip, and the actuating nut maintains a distance from the retaining ring. A hinge seat is fixedly installed at the upper end of the retaining ring. An actuating rod is rotatably installed inside the hinge seat via a hinge shaft. An actuating plate is fixedly installed at the end of the actuating rod away from the hinge shaft. A U-shaped retaining groove is provided at the lower end of the actuating plate. The retaining groove engages with the outer side of the movable tip between the actuating nut and the retaining ring, and the actuating plate maintains contact with the actuating nut. A handle is fixedly installed at the end of the actuating rod away from the actuating plate.

[0013] Furthermore, the positioning plate remains vertical, is positioned at the lower end of the V-groove, and is fixedly connected to the support block by fixing screws.

[0014] The beneficial effects of this utility model compared to the prior art are as follows:

[0015] This utility model provides a welding fixture for damping roller shaft assembly. The shaft assembly processed using this fixture not only ensures the technical requirement of radial runout ≤0.4mm, but also can be operated by one person. It is simple, quick and convenient to operate and suitable for batch product processing. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model. Figure 1 ;

[0018] Figure 2 This is a three-dimensional schematic diagram of the entire utility model. Figure 2 ;

[0019] Figure 3 This is a front view of the entire utility model;

[0020] Figure 4 This is a frontal sectional view of the present invention;

[0021] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle;

[0022] Figure 6 yes Figure 4 A magnified view of a portion of point B in the middle;

[0023] Figure 7 This is a structural diagram of the shaft assembly;

[0024] Figure 8 This is a schematic diagram of the working process of this utility model;

[0025] Among them, 1 is a fixed center base, 2 is a movable center base, 3 is a base, 4 is a fixed center, 5 is a movable center, 6 is a support block, 7 is a locking mechanism, 8 is a positioning plate, 9 is a slide groove, 10 is a locking bolt, 11 is a locking nut, 12 is a fixing ring, 13 is a fixing nut, 14 is an outer expansion ring, 16 is an action nut, 17 is a spring, 18 is a retaining ring, 19 is a hinge seat, 20 is a hinge shaft, 21 is an action rod, 22 is an action plate, 23 is a handle, 24 is a shaft, 25 is an aluminum tube, and 26 is a baffle. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0027] like Figure 1 As shown in Figure 6, this utility model provides a welding fixture for a damping idler roller shaft assembly, including a base 3. On the base 3, there are fixed center platforms 1 and movable center platforms 2 arranged opposite to each other. Fixed center platforms 4 are fixedly arranged on the fixed center platforms 1, and movable center platforms 5 are slidably arranged on the movable center platforms 2. Two support blocks 6 are arranged on the base 3 between the fixed center platforms 1 and the movable center platforms 2. The fixed center platforms 1, the movable center platforms 2, and the support blocks 6 are all connected to the base 3 through a locking mechanism 7. Each support block 6 has a V-groove on its upper end, and a positioning plate 8 is fixedly arranged on the side end face of the two support blocks 6 that are far apart from each other.

[0028] The upper surface of the base 3 is kept horizontal, and a sliding groove 9 is provided on the upper surface of the base 3. The sliding groove 9 is a T-shaped groove structure.

[0029] Both the fixed center platform 1 and the movable center platform 2 are hollow triangular prism structures. The extending directions of the fixed center platform 1 and the movable center platform 2 are parallel to the extending direction of the slide groove 9. The lower end surfaces of the fixed center platform 1 and the movable center platform 2 are in contact with the upper end surface of the base 3. A locking strip is fixedly installed on each side edge of the lower end surface of the fixed center platform 1 and the movable center platform 2, and the two locking strips are respectively locked to the upper end surface of the base 3. A locking hole that runs vertically through the base plate of the fixed center platform 1 and the movable center platform 2 is provided on the base plate of the fixed center platform 1 and the movable center platform 2.

[0030] The lower end face of the support block 6 is in contact with the upper end face of the base 3. A snap-fit ​​strip is fixedly installed on each side edge of the lower end face of the support block 6, and the two snap-fit ​​strips are snapped into the sides edge of the upper end face of the base 3 respectively. A horizontal fixing plate is fixedly installed on the lower edge of the side end face of the two support blocks 6 that are far apart from each other, and a locking hole that runs vertically through the center of the fixing plate is provided.

[0031] The locking mechanism 7 includes a locking bolt 10 and a locking nut 11. The head of the locking bolt 10 is slidably engaged inside the slide groove 9, and one end of the bolt 10 passes vertically upward through the locking hole and is screwed with the locking nut 11. When the locking nut 11 is loosened, the fixed top platform 1, the movable top platform 2, and the support block 6 can all slide in the slide groove 9, thereby adjusting the positions of the fixed top platform 1, the movable top platform 2, and the support block 6. After the positions are adjusted, the locking nut 11 is tightened to fix the positions of the fixed top platform 1, the movable top platform 2, and the support block 6.

[0032] A through-hole for fixing the center is provided at the upper end of the fixed center base 1, with the axis 24 of the fixed center mounting hole parallel to the extension axis 24 of the slide groove 9. The fixed center 4 is a rod-shaped structure, with a fixing ring 12 fixedly sleeved on its outer surface. One end of the fixed center 4 is a spike, and the other end is a screw. One end of the screw of the fixed center 4 is inserted into the fixed center mounting hole from the end near the movable center base 2 and passes through the fixed center mounting hole. The fixing ring 12 contacts the end face of the fixed center base 1 near the movable center base 2. A fixing nut 13 is screwed onto one end of the screw of the fixed center 4, thereby fixing the fixed center 4 to the fixed center base 1.

[0033] A through-hole for mounting a movable center is provided at the upper end of the movable center base 2, with the axis 24 of the movable center mounting hole coinciding with the axis 24 of the fixed center mounting hole. The inner wall of the movable center mounting hole has a connected large inner diameter section and a small inner diameter section, with the large inner diameter section located on the side closer to the fixed center base 1. The movable center 5 is slidably disposed inside the movable center mounting hole. One end of the movable center 5 is a spike, and the other end is a screw. An expansion ring 14 is fixedly sleeved on the outer side of the movable center 5 near the spike. One end of the screw of the movable center 5 is inserted into the movable center mounting hole from the large inner diameter section and passes through the hole. The expansion ring 14 on the outer side of the movable center 5 is located inside the large inner diameter section. A working nut 16 is screwed to one end of the screw of the movable center 5. A spring 17 is fitted on the outside of the movable tip 5. The spring 17 is located inside the large inner diameter section. One end of the spring 17 is connected to the outer expansion ring 14, and the other end of the spring 17 is connected to the inner wall of the large inner diameter section.

[0034] A retaining ring 18 is fixedly installed on the outer side of the opening of the small inner diameter section of the movable tip mounting hole. The retaining ring 18 is sleeved on the outer side of the movable tip 5, and the actuating nut 16 maintains a distance from the retaining ring 18. A hinge seat 19 is fixedly installed at the upper end of the retaining ring 18. An actuating rod 21 is rotatably mounted inside the hinge seat 19 via a hinge shaft 20. An actuating plate 22 is fixedly installed at the end of the actuating rod 21 away from the hinge shaft 20, and the actuating plate 22 is perpendicular to the actuating rod 21. A U-shaped locking groove is provided at the lower end of the actuating plate 22. The locking groove engages with the outer side of the movable tip 5 between the actuating nut 16 and the retaining ring 18, and the actuating plate 22 maintains contact with the actuating nut 16. A handle 23 is fixedly installed at the end of the actuating rod 21 away from the actuating plate 22.

[0035] The positioning plate 8 is kept vertical and is located at the lower end of the V-groove. The positioning plate 8 is fixedly connected to the support block 6 by fixing screws.

[0036] The shaft assembly is welded together from a shaft 24, an aluminum tube 25, and baffles 26. The aluminum tube 25 is sleeved on the outside of the shaft 24, and two baffles 26 are sleeved on the outside of the shaft 24, located at the openings at both ends of the aluminum tube 25. Inner stops are machined at the openings at both ends of the aluminum tube 25, and two symmetrical slots are formed at the inner stops. The baffles 26 are laser-cut and have a disc-shaped structure. Two symmetrical baffles are fixedly installed on the outer edge of the disc. The disc-shaped baffles 26 are embedded into the inner stops of the aluminum tube 25, and the two baffles on the baffles 26 are inserted into the two slots of the inner stops, thereby assembling and fixing the baffles 26 and the aluminum tube 25. The shaft 24 passes through the aluminum tube 25 and the baffles 26 and is spot-welded to secure it.

[0037] The working principle of this utility model is as follows:

[0038] like Figure 8 As shown, when the damping roller shaft assembly needs to be welded, the tooling is first adjusted according to the product size, including the position of the fixed top platform 1, the movable top platform 2 and the two V-shaped support blocks 6 on the base 3, to ensure that the fixed top platform 1 and the movable top platform 2 are symmetrically arranged relative to the axis 24, and the two V-shaped support blocks 6 are symmetrically arranged relative to the aluminum tube 25. The positioning plate 8 on the V-shaped support block 6 positions the end face of the aluminum tube 25. After the adjustment is appropriate, the locking nuts 11 on the fixed top platform 1, the movable top platform 2 and the two support blocks 6 are tightened.

[0039] Then assemble the shaft assembly. Shaft 24 passes through aluminum tube 25. Two end baffles 26 are fitted on the outside of shaft 24. The two baffles 26 are pushed into the inner stop of the aluminum tube 25, ensuring that the two baffles on the outside of the baffles 26 are inserted into the two slots of the inner stop.

[0040] Then, press down on handle 23, causing the actuating plate 22 to rotate upwards. The actuating plate 22 drives the actuating nut 16 to slide away from the fixed center base 1. The actuating nut 16 drives the movable center 5 to slide away from the fixed center base 1, compressing the spring 17. The spike end of the movable center 5 retracts into the movable center mounting hole. Then, place the shaft assembly into the V-groove of the two support blocks 6, so that the two positioning plates 8 contact the baffles 26 at both ends, thereby positioning the shaft assembly. The shaft 24 is located between the movable center 5 and the fixed center 4. Then, release handle 23. Under the rebound force of spring 17, the movable center 5 slides back towards the fixed center 4, contacting the shaft 24. The movable center 5 and the fixed center 4 are pressed against the center holes at both ends of the shaft 24 by the force of spring 17.

[0041] The shaft 24 is pressed by the movable tip 5 and the fixed tip 4, and the aluminum tube 25 is positioned by the two support blocks 6 and the two positioning plates 8, thus controlling the relative position of the shaft 24 and the aluminum tube 25. The baffle 26 and the shaft 24 are fixed by three-point evenly distributed spot welding with a handheld laser welding machine.

[0042] Finally, press down the handle 23 to disengage the movable tip 5 from the shaft 24, releasing the clamping of the shaft assembly, thus completing the positioning and welding work of a set of shaft assemblies.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tooling for welding a damper roll shaft assembly, characterized by: The utility model provides a double -sided fixed center rest and movable center rest, which comprises a base (3), a fixed center rest (1) and a movable center rest (2) are arranged oppositely on the base (3), a fixed center (4) is fixedly arranged on the fixed center rest (1), a movable center (5) is slidably arranged on the movable center rest (2), two supporting blocks (6) are arranged on the base (3) between the fixed center rest (1) and the movable center rest (2), the fixed center rest (1), the movable center rest (2) and the supporting block (6) are connected with the base (3) through a locking mechanism (7), a V-shaped groove is arranged on the upper end of each supporting block (6), and a positioning plate (8) is fixedly arranged on the side end face of the two supporting blocks (6) away from each other.

2. The welding tool for damping a roller shaft assembly according to claim 1, wherein: A sliding groove (9) is arranged on the upper end face of the base (3), and the sliding groove (9) is a T-shaped groove structure.

3. The tooling for welding of a damped roller axle assembly according to claim 2, characterized in that: The lower end face of the fixed center rest (1) and the movable center rest (2) is attached to the upper end face of the base (3), and a locking hole penetrating through the upper and lower portions is arranged on the bottom plate of the fixed center rest (1) and the movable center rest (2) respectively.

4. The tooling for welding of a damped roller axle assembly according to claim 3, characterized in that: The lower end face of the supporting block (6) is attached to the upper end face of the base (3), a horizontal fixed plate is fixedly arranged at the lower edge of the side end face of the two supporting blocks (6) away from each other, and a locking hole penetrating through the upper and lower portions is arranged at the center of the fixed plate.

5. The tooling for welding of a damped roller axle assembly according to claim 4, characterized in that: The locking mechanism (7) comprises a locking bolt (10) and a locking nut (11), the head portion of the locking bolt (10) is slidably connected in the sliding groove (9), and the screw rod of the locking bolt (10) is screwed with the locking nut (11) after penetrating through the locking hole vertically upward.

6. The welding fixture of claim 1, wherein: A fixed center mounting hole penetrating through both ends is arranged on the upper end of the fixed center rest (1), a fixed ring (12) is fixedly sleeved on the outer side face of the fixed center (4), one end of the fixed center (4) is a spike, and the other end of the fixed center (4) is a screw rod; the screw rod of the fixed center (4) is inserted into the fixed center mounting hole and penetrates through the fixed center mounting hole from the end of the fixed center mounting hole close to the movable center rest (2), the fixed ring (12) is in contact with the side end face of the fixed center rest (1) close to the movable center rest (2), the screw rod of the fixed center (4) is screwed with a fixed nut (13), so that the fixed center (4) is fixed on the fixed center rest (1).

7. The tooling for welding of a damped roller axle assembly as defined in claim 1 wherein: The upper end of the movable center rest base (2) is provided with a movable center rest mounting hole penetrating through both ends, and the inner wall of the movable center rest mounting hole is provided with a large inner diameter section and a small inner diameter section connected with each other, wherein the large inner diameter section is located at the side close to the fixed center rest base (1); the movable center rest (5) is slidably arranged inside the movable center rest mounting hole, one end of the movable center rest (5) is a spike, the other end of the movable center rest (5) is a screw rod, and the outer side of the movable center rest (5) is fixedly sleeved with an expanding ring (14) at the end close to the spike; the screw rod end of the movable center rest (5) is inserted into the inside of the movable center rest mounting hole from one end of the large inner diameter section of the movable center rest mounting hole and penetrates through the movable center rest mounting hole, the expanding ring (14) on the outer side of the movable center rest (5) is located inside the large inner diameter section, and the screw rod end of the movable center rest (5) is screwed with an action nut (16); a spring (17) is sleeved on the outer side of the movable center rest (5), the spring (17) is located inside the large inner diameter section, one end of the spring (17) is connected with the expanding ring (14), and the other end of the spring (17) is connected with the inner wall of the large inner diameter section.

8. The tooling for welding of a damped roller axle assembly according to claim 7, characterized in that: A clamping ring (18) is fixedly arranged outside the opening of the small inner diameter section of the movable center rest mounting hole, the clamping ring (18) is sleeved on the outer side of the movable center rest (5), the action nut (16) is kept at a distance from the clamping ring (18); a hinged seat (19) is fixedly arranged at the upper end of the clamping ring (18), a working rod (21) is rotatably arranged in the hinged seat (19) through a hinge shaft (20), and an action plate (22) is fixedly arranged at the end of the working rod (21) away from the hinge shaft (20); a U-shaped clamping groove is arranged at the lower end of the action plate (22), the clamping groove is clamped on the outer side of the movable center rest (5) between the action nut (16) and the clamping ring (18), and the action plate (22) is kept in contact with the action nut (16); a handle (23) is fixedly arranged at the end of the working rod (21) away from the action plate (22).

9. The tooling for welding of a damped roller axle assembly of claim 1, wherein: The positioning plate (8) is kept vertical, the positioning plate (8) is arranged at the lower end of the V-shaped groove, and the positioning plate (8) is fixedly connected with the supporting block (6) through a fixing screw.

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