Clamp for bearing assembly
By designing a bearing assembly fixture containing an extruded screw and a U-shaped abutment rod, the problems of high force and unstable operation during large batch operations in the prior art are solved, and more labor-saving rotary extrusion and three-point clamping effects are achieved, which improves the success rate and adaptability of the assembly.
Patent Information
- Application Number
- CN202421423069.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When existing bearing assembly clamps are operated in large quantities, they require a large force, which leads to fatigue and unstable operation of workers and easily leads to squeeze damage to bearing components.
A bearing assembly clamp including a base, a seat mechanism and an extrusion screw is designed. The trapezoidal block is driven down by the rotation of the extrusion screw, and combined with the three-point clamping effect of the U-shaped rod, it achieves a more labor-saving rotation and extrusion force application.
This design reduces the force required for operation, reduces the risk of staff fatigue and operational errors, improves the success rate of bearing assembly, and is adapted to the assembly of multi-size bearings.
Smart Images
Figure CN222920421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamp for assembling bearings. Background Art
[0002] Conventional bearings are composed of an outer ring, an inner ring, and balls. The inner ring is located inside the outer ring, and the balls are embedded in the slideways on the inner wall of the outer ring and the outer wall of the inner ring, so that the outer ring and the inner ring can rotate through the limited rolling of the balls in the slideways.
[0003] When assembling the bearing, the inner ring is first placed inside the outer ring and adjusted to be eccentric. Then a certain number of balls are embedded in the gap, and the position of the balls is adjusted. Then the outer ring and the inner ring are placed on the fixture. The balls are squeezed into the slideways of the inner and outer rings by the extrusion of the fixture. Specifically:
[0004] The clamp used for this operation consists of two parts, one of which is a fixed part with a fixed rod on it, which presses against one end of the outer ring, and the other end is an extrusion part. The main body is composed of a fixed block and an extrusion mechanism. A push rod is inserted and slidably inserted into the fixed block. The extrusion mechanism is a rotatable shaft. An eccentric block is fixed on the outer wall of the shaft at the rear end of the push rod. A handle is provided at the end of the shaft. The handle drives the shaft body to rotate, and the shaft body drives the eccentric block to squeeze the push rod, so that the push rod can press against the other end of the outer ring. The ball is squeezed into the slideway through the extrusion, so that the outer ring can be concentric with the inner ring. This operation is also called concentric processing.
[0005] In the process of implementing the solution, the inventor found that the clamp had the following problems that were not well solved:
[0006] 1. The eccentric block squeezes the push rod, which requires the staff to apply a large force to make the push rod push the outer ring and allow the balls to successfully enter the two slides. Single operation is simple, but large-scale operation will cause the staff's arm strength to be exhausted, and multiple squeezes will occur after a single squeeze fails. Multiple squeezes will cause squeeze damage to the bearing components.
[0007] 2. The fixing rod of the fixed part is a single rod, which is against one end of the outer ring. When the other end is squeezed, the outer wall of the outer ring is smooth and it is easy to slip during squeezing. Once slipping occurs, the release of force will cause the outer ring and the inner ring to pop out, and the balls between them will scatter, making it impossible for the fixture to complete efficient concentric assembly of the bearing. Utility Model Content
[0008] The main purpose of the utility model is to provide a bearing assembly fixture, which can effectively solve the problems in the background technology.
[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0010] The cam is provided with a screw threadedly connected to the top end of the base, and the cam is provided with a screw threadedly connected to the top end of the base, and the cam is provided with a screw threadedly connected to the top end of the base.
[0011] Preferably, the oblique side surface of the trapezoidal block 2 contacts the oblique side surface of the trapezoidal block 1.
[0012] Preferably, a tension spring is sleeved on the outer wall of the second slide bar, and the tension spring is located between the second basic seat and the first trapezoidal block, and both ends of the tension spring are respectively in contact with the side close to the second basic seat and the first trapezoidal block.
[0013] Preferably, the basic seat 1 is provided with a rod sliding groove 1 at both ends of the thread groove, and a sliding rod 1 is slidably connected inside the rod sliding groove 1.
[0014] Preferably, one end of the sliding rod passing through the rod sliding groove is fixedly connected to the two ends of the U-shaped support rod respectively.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] 1. The rotation of the extrusion screw will cause the bottom of the extrusion screw to drive the trapezoidal block 2 to descend, and the contact between the inclined surface of the trapezoidal block 2 and the inclined surface of the trapezoidal block 1 will cause the trapezoidal blocks to be extruded together. The trapezoidal block 1 can drive the front end of the slide bar 2 under the extrusion condition. Compared with the traditional eccentric extrusion method, this kind of rotational extrusion force is more labor-saving and more friendly to manual mass processing.
[0017] 2. The U-shaped support rod is in a U-shaped shape. It can support the two sides of one end of the outer ring through the two forward ends, and when the other end is supported by the second slide rod, a three-point clamping effect is formed, so that the extrusion during the processing has better stability, and it will not easily break out and escape from the clamping problem, thereby improving the success rate of the processing;
[0018] The rotation of the adjusting screw will drive the U-shaped abutting rod to move forward or backward through the swivel base, so that the distance between the U-shaped abutting rod and the second slide rod can be adjusted, and further the size of the outer ring can be prevented from changing between them, achieving adaptation for assembly and use of bearings of multiple sizes. Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of a fixture for bearing assembly of the present utility model;
[0020] Figure 2 It is a schematic separation structure diagram of the second basic seat of a fixture for bearing assembly of the present utility model after being sectioned and separated from the second slide rod;
[0021] Figure 3 It is a schematic sectional structure diagram of the first basic seat of a fixture for bearing assembly of the present utility model;
[0022] Figure 4 It is a schematic separation structure diagram of the adjusting screw and the swivel base of a fixture for bearing assembly of the present utility model.
[0023] In the figure: 1. Base; 2. First seat body mechanism; 21. First basic seat; 22. First rod chute; 23. Adjusting screw; 24. U-shaped abutting rod; 25. Swivel base; 26. First slide rod; 27. Thread groove; 3. Second seat body mechanism; 31. Second basic seat; 32. Second rod chute; 33. Second slide rod; 34. Tension spring; 35. First trapezoidal block; 36. L-shaped plate; 37. Extrusion screw; 38. Second trapezoidal block. Detailed Embodiment
[0024] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Such as Figures 1-4As shown in the figure, a fixture for bearing assembly includes a base 1. One end of the top of the base 1 is fixedly provided with a seat mechanism one 2. The seat mechanism one 2 includes a basic seat one 21. A threaded groove 27 is drilled in the basic seat one 21. One end of the top of the base 1 away from the seat mechanism one 2 is fixedly provided with a seat mechanism two 3. An adjusting screw 23 is threadedly connected inside the threaded groove 27. One end of the basic seat one 21 close to the seat mechanism two 3 is provided with a U-shaped abutting rod 24. A rotating seat 25 is arranged at one end of the U-shaped abutting rod 24 where the adjusting screw 23 is located. One end of the adjusting screw 23 passing through the threaded groove 27 is rotatably connected to the rotating seat 25. The seat mechanism two 3 includes a basic seat two 31. A rod sliding groove two 32 is drilled at the position of the basic seat two 31 corresponding to the threaded groove 27. A sliding rod two 33 is slidably connected inside the rod sliding groove two 32. One end of the sliding rod two 33 away from the seat mechanism one 2 is fixedly provided with a trapezoidal block one 35. One end of the base 1 away from the seat mechanism one 2 where the seat mechanism two 3 is located is fixedly provided with an L-shaped plate 36. An extrusion screw 37 is threadedly connected to the L-shaped plate 36. The bottom of the extrusion screw 37 is rotatably connected to a trapezoidal block two 38.
[0026] Specifically, the inclined side of the trapezoidal block two 38 is in contact with the inclined side of the trapezoidal block one 35.
[0027] Specifically, a tension spring 34 is sleeved on the outer wall of the sliding rod two 33. The tension spring 34 is located between the basic seat two 31 and the trapezoidal block one 35. And both ends of the tension spring 34 are in contact with the closer sides of the basic seat two 31 and the trapezoidal block one 35 respectively. After the extrusion is completed, the flipping of the extrusion screw 37 will drive the trapezoidal block two 38 to rise. The sliding rod two 33 can then move backward by the thrust of the tension spring 34 on the trapezoidal block one 35, so that the bearing can be taken out between the sliding rod two 33 and the U-shaped abutting rod 24.
[0028] Specifically, rod sliding grooves one 22 are drilled at both ends of the basic seat one 21 corresponding to the threaded groove 27. Sliding rods one 26 are slidably connected inside the rod sliding grooves one 22 respectively. One ends of the sliding rods one 26 passing through the rod sliding grooves one 22 are fixedly connected to both ends of the U-shaped abutting rod 24 respectively, making the movement of the U-shaped abutting rod 24 horizontal.
[0029] Working principle: The rotation of the extrusion screw 37 will cause the bottom of it to drive the second trapezoidal block 38 to descend. The contact between the inclined surface of the second trapezoidal block 38 and the inclined surface of the first trapezoidal block 35 will exert an extrusion force on the first trapezoidal block 35. The first trapezoidal block 35 can drive the front end of the second slide bar 33 under extrusion. This rotational extrusion force application is more labor-saving compared with the traditional eccentric extrusion method and is more user-friendly for large-scale manual processing. The U-shaped abutting rod 24 is U-shaped. It can abut against both sides of one end of the outer ring through two protruding ends. When the other end is abutted by the second slide bar 33, a three-point clamping effect is formed, making the extrusion during processing have better stability and not easily causing problems such as popping out and disengaging from the clamping, thus improving the success rate of processing. The rotation of the adjustment screw 23 will drive the U-shaped abutting rod 24 to move forward or backward through the rotating seat 25, so that the distance between the U-shaped abutting rod 24 and the second slide bar 33 can be adjusted, and further the size of the outer ring that can be prevented between them can be changed, achieving adaptation for assembly and use of bearings of multiple sizes.
[0030] The circuits, electronic components and control modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods either.
[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A bearing assembly fixture, comprising a base (1), characterized in that: A seat body mechanism (2) is fixed to one end of the top of the base (1), and the seat body mechanism (2) comprises a basic seat (21). A threaded groove (27) is formed on the basic seat (21). A seat body mechanism (3) is fixed to one end of the top of the base (1) away from the seat body mechanism (2). An adjusting screw (23) is connected to the inner thread of the threaded groove (27). A U-shaped support rod (24) is provided at one end of the basic seat (21) close to the seat body mechanism (3). A rotating seat (25) is provided at one end of the U-shaped support rod (24) located at the adjusting screw (23). One end of the adjusting screw (23) passes through the threaded groove (27) and is connected to the rotating seat (25). The seat (25) is rotatably connected, the seat body mechanism 2 (3) includes a basic seat 2 (31), the basic seat 2 (31) is provided with a rod slide groove 2 (32) located at the position of the thread groove (27), the rod slide groove 2 (32) is slidably connected with a slide rod 2 (33) inside, the slide rod 2 (33) is fixed with a trapezoidal block 1 (35) at one end away from the seat body mechanism 1 (2), the base (1) is located at the end of the seat body mechanism 2 (3) away from the seat body mechanism 1 (2) and is fixed with an L-shaped plate (36), the L-shaped plate (36) is threadedly connected with an extrusion screw (37), and the bottom of the extrusion screw (37) is rotatably connected with a trapezoidal block 2 (38).
2. A bearing assembly fixture according to claim 1, characterized in that: The inclined side surface of the trapezoidal block 2 (38) contacts the inclined side surface of the trapezoidal block 1 (35).
3. A bearing assembly fixture according to claim 1, characterized in that: The outer wall of the second slide bar (33) is provided with a tension spring (34), and the tension spring (34) is located between the second basic seat (31) and the first trapezoidal block (35), and the two ends of the tension spring (34) are respectively in contact with the side close to the second basic seat (31) and the first trapezoidal block (35).
4. A bearing assembly fixture according to claim 1, characterized in that: The two ends of the basic seat (21) located on the thread groove (27) are both provided with a rod sliding groove (22), and the interior of the rod sliding groove (22) is slidably connected with a sliding rod (26).
5. A bearing assembly fixture according to claim 4, characterized in that: One end of the sliding rod (26) passing through the rod sliding groove (22) is fixedly connected to the two ends of the U-shaped supporting rod (24).