Radial tensioning device for deep groove ball bearing machining

Abstract

The utility model discloses a deep groove ball bearing machining radial tensioning device which comprises a machining barrel, a driving air cylinder is fixedly installed in the machining barrel, a driving seat is fixedly installed at the end of an output shaft of the driving air cylinder, meanwhile, an upper tensioning assembly is installed on the upper side of the driving seat, and a lower tensioning assembly is installed on the lower side of the driving seat. According to the radial tensioning device for deep groove ball bearing machining, the driving inclined face exerts pressure on the stress inclined face, so that the driven seat moves upwards, the transmission shaft drives the tensioning seats to move upwards, the tensioning seats are of arc-shaped structures made of rubber materials, and the two tensioning seats synchronously move towards the outer side; the inner wall of the deep groove ball bearing can be clamped and fixed, clamping and fixing work mentioned in the background technology through an air bag is replaced, and the situations that an air bag material is likely to be fatigued, the fixing effect on an inner ring of the bearing is affected, and the bearing is prone to falling off are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of deep groove ball bearing processing, in particular to a radial tensioning device for deep groove ball bearing processing. Background Art

[0002] Deep groove ball bearings are the most common type of rolling bearings. A basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and a cage. During the assembly process of a deep groove ball bearing, when machining the outer ring surface, the outer ring and inner ring need to be tightened to secure the outer ring. However, the existing outer ring tightening operation is cumbersome and inconvenient for subsequent maintenance and replacement. At the same time, the tightening force cannot be effectively controlled during tightening, which can easily cause damage to the outer ring and inner ring. Therefore, improvements are needed.

[0003] To address the above-mentioned issues, a search revealed a radial tensioning device for deep groove ball bearing processing, with publication number CN215747948U. The document proposes that the expansion of the airbag 21 causes the movable bar 11 to slide evenly on the sliding rod 14, thereby causing the tensioning plate 15 to expand in all directions to tighten the outer ring. This simple mechanical structure achieves this tightening effect, effectively resolving the existing issues of cumbersome outer ring tensioning operations and the inconvenience of subsequent maintenance and replacement.

[0004] Although the above-mentioned device can clamp and fix the inner ring of the deep groove ball bearing, it uses the airbag expansion method. During actual operation, the expansion pressure of the airbag may change with time and the number of uses; for example, after long-term use, the airbag material may fatigue, resulting in a decrease in the expansion pressure, thereby making the clamping force unstable, affecting the fixing effect of the bearing inner ring, and easily causing it to fall off. Utility Model Content

[0005] The purpose of the utility model is to provide a radial tensioning device for machining deep groove ball bearings to solve the defects mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, a deep groove ball bearing processing radial tensioning device is provided, comprising a processing cylinder, a driving cylinder is fixedly installed inside the processing cylinder, and a driving seat is fixedly installed on the output shaft end of the driving cylinder, and an upper tensioning assembly is installed on the upper side of the driving seat, and a lower tensioning assembly is installed on the lower side of the driving seat, the upper tensioning assembly includes a guide tube fixedly arranged on the circumferential inner wall of the processing cylinder, and a transmission shaft is inserted into the interior of the guide tube, and a tensioning seat is fixedly installed on the top of the transmission shaft, and a passive seat is fixedly installed on the end of the transmission shaft away from the tensioning seat.

[0007] Preferably, an upper tensioning assembly and a lower tensioning assembly are respectively installed on the processing cylinder, and the upper tensioning assembly and the lower tensioning assembly have the same composition structure. At the same time, the deep groove ball bearing is sleeved on the outside of the processing cylinder and clamped and fixed by the upper tensioning assembly and the lower tensioning assembly.

[0008] Preferably, the driving seat is an isosceles trapezoidal structure made of metal material, and the passive seat is a right-angled trapezoidal structure made of metal material, and passive seats are installed on both sides of the surface of the driving seat.

[0009] Preferably, a guide seat is fixedly installed on the circumferential outer wall of the processing cylinder, and a guide hole that is adapted to the size of the transmission shaft is opened on the guide seat. At the same time, the transmission shaft is inserted into the inside of the guide hole. A fixing seat is fixedly installed on the circumferential side wall of the processing cylinder, and four groups of screw holes are evenly opened on the fixing seat.

[0010] Preferably, a limit plate is installed inside the transmission shaft, and a spring is provided on the surface of the limit plate, and the outer side of the transmission shaft is wrapped with a spring.

[0011] Preferably, both sides of the surface of the driving seat are provided with driving inclined surfaces inclined at 45°, and the surface of the passive seat is provided with a force-bearing inclined surface inclined at 45°, and the driving inclined surface is arranged in contact with the force-bearing inclined surface.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the output shaft of the driving cylinder drives the driving seat to move from left to right, and the driving inclined surface applies pressure to the force-bearing inclined surface, so that the passive seat moves upward, and the transmission shaft drives the tensioning seat to move upward. The tensioning seat is an arc-shaped structure made of rubber material. The two groups of tensioning seats move outward synchronously, which can clamp and fix the inner wall of the deep groove ball bearing, ensuring the stability of the bearing when clamping, replacing the use of airbags for clamping and fixing mentioned in the background technology, avoiding the possibility of fatigue of the airbag material, affecting the fixing effect of the inner ring of the bearing, and the bearing is prone to falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Bottom view of

[0015] Figure 3 for Figure 1 A top view of

[0016] Figure 4 for Figure 1 rear view.

[0017] Numbers in the figure: 1. Processing cylinder; 2. Driving cylinder; 3. Driving seat; 4. Upper tensioning assembly; 41. Tensioning seat; 42. Transmission shaft; 43. Limiting plate; 44. Guide tube; 45. Passive seat; 46. Spring; 47. Guide seat; 5. Lower tensioning assembly; 6. Fixed seat. DETAILED DESCRIPTION

[0018] See also Figure 1-4 The utility model provides a radial tensioning device for deep groove ball bearing processing, including a processing cylinder 1, a driving cylinder 2 is fixedly installed inside the processing cylinder 1, and a driving seat 3 is fixedly installed on the output shaft end of the driving cylinder 2, and an upper tensioning component 4 is installed on the upper side of the driving seat 3, and a lower tensioning component 5 is installed on the lower side of the driving seat 3. The upper tensioning component 4 includes a guide tube 44 fixedly arranged on the inner wall of the circumference of the processing cylinder 1, and a transmission shaft 42 is inserted into the interior of the guide tube 44. At the same time, a tensioning seat 41 is fixedly installed on the top of the transmission shaft 42, and a passive seat 45 is fixedly installed on the end of the transmission shaft 42 away from the tensioning seat 41.

[0019] Working principle: When in use, first put the deep groove ball bearing on the outside of the processing cylinder 1 and clamp it and fix it through the upper tensioning component 4 and the lower tensioning component 5. The specific method is that the output shaft of the driving cylinder 2 drives the driving seat 3 to move from left to right. Both sides of the surface of the driving seat 3 are provided with a driving inclined surface inclined at 45°, and the surface of the passive seat 45 is provided with a force-bearing inclined surface inclined at 45°. The driving inclined surface applies pressure to the force-bearing inclined surface, so that the passive seat 45 moves upward, and the transmission shaft 42 drives the tensioning seat 41 to move upward. The tensioning seat 41 is an arc structure made of rubber material. The two groups of tensioning seats 41 move synchronously outward, which can clamp and fix the inner wall of the deep groove ball bearing, ensure the stability of the bearing when clamping, and replace the background technology. The airbag is used for clamping and fixing to avoid fatigue of the airbag material, which may affect the fixing effect of the inner ring of the bearing and the bearing is prone to falling off. When the transmission shaft 42 moves upward, it drives the tensioning seat 41 to move upward to clamp the inner wall of the bearing. At this time, the limit plate 43 moves upward to compress the spring 46. When the driving seat 3 is retracted, the compressed spring 46 resets and rebounds, causing the tensioning seat 41 to move downward and no longer clamp and fix the bearing. When the transmission shaft 42 is lifted, the transmission shaft 42 is respectively inserted into the guide holes opened on the guide tube 44 and the guide seat 47, which can limit and guide the vertically moving transmission shaft 42 to ensure the stability of the transmission shaft 42 when lifting and lowering, and is not easy to tilt.

[0020] An upper tensioning assembly 4 and a lower tensioning assembly 5 are respectively installed on the processing cylinder 1, and the composition structure of the upper tensioning assembly 4 and the lower tensioning assembly 5 are consistent. At the same time, the deep groove ball bearing is sleeved on the outside of the processing cylinder 1 and clamped and fixed by the upper tensioning assembly 4 and the lower tensioning assembly 5.

[0021] As a preferred embodiment, the driving seat 3 is an isosceles trapezoidal structure made of metal material, and the passive seat 45 is a right-angled trapezoidal structure made of metal material. At the same time, the passive seats 45 are installed on both sides of the surface of the driving seat 3.

[0022] A guide seat 47 is fixedly installed on the circumferential outer wall of the processing cylinder 1, and a guide hole that matches the size of the transmission shaft 42 is opened on the guide seat 47. At the same time, the transmission shaft 42 is inserted into the inside of the guide hole. A fixing seat 6 is fixedly installed on the circumferential side wall of the processing cylinder 1, and four groups of screw holes are evenly opened on the fixing seat 6.

[0023] As a preferred embodiment, a limiting plate 43 is installed inside the transmission shaft 42 , and a spring 46 is provided on the surface of the limiting plate 43 , while the outer side of the transmission shaft 42 is wrapped with the spring 46 .

[0024] Both sides of the surface of the driving seat 3 are provided with driving inclined surfaces inclined at 45 degrees, and the surface of the passive seat 45 is provided with a force-bearing inclined surface inclined at 45 degrees, and the driving inclined surface and the force-bearing inclined surface are arranged in contact with each other.

Claims

1. A radial tensioning device for machining deep groove ball bearings, comprising a machining cylinder (1), characterized in that: A driving cylinder (2) is fixedly installed inside the processing cylinder (1), and a driving seat (3) is fixedly installed on the end of the output shaft of the driving cylinder (2), and an upper tightening assembly (4) is installed on the upper side of the driving seat (3), and a lower tightening assembly (5) is installed on the lower side of the driving seat (3), and the upper tightening assembly (4) includes a guide tube (44) fixedly arranged on the inner wall of the circumference of the processing cylinder (1), and a transmission shaft (42) is inserted into the inside of the guide tube (44), and a tightening seat (41) is fixedly installed on the top of the transmission shaft (42), and a passive seat (45) is fixedly installed on the end of the transmission shaft (42) away from the tightening seat (41).

2. A radial tensioning device for deep groove ball bearing machining according to claim 1, characterized in that: An upper tensioning assembly (4) and a lower tensioning assembly (5) are respectively installed on the processing cylinder (1), and the upper tensioning assembly (4) and the lower tensioning assembly (5) have the same composition structure. At the same time, a deep groove ball bearing is sleeved on the outer side of the processing cylinder (1) and is clamped and fixed by the upper tensioning assembly (4) and the lower tensioning assembly (5).

3. A radial tensioning device for deep groove ball bearing machining according to claim 1, characterized in that: The driving seat (3) is an isosceles trapezoidal structure made of metal, and the passive seat (45) is a right-angled trapezoidal structure made of metal. Passive seats (45) are installed on both sides of the surface of the driving seat (3).

4. A radial tensioning device for machining deep groove ball bearings according to claim 1, characterized in that: A guide seat (47) is fixedly mounted on the circumferential outer wall of the processing cylinder (1), and a guide hole matching the size of the transmission shaft (42) is opened on the guide seat (47), and the transmission shaft (42) is inserted into the inside of the guide hole. A fixing seat (6) is fixedly mounted on the circumferential side wall of the processing cylinder (1), and four groups of screw holes are evenly opened on the fixing seat (6).

5. A radial tensioning device for machining deep groove ball bearings according to claim 4, characterized in that: A limiting plate (43) is installed inside the transmission shaft (42), and a spring (46) is provided on the surface of the limiting plate (43). Meanwhile, the outer side of the transmission shaft (42) is wrapped with the spring (46).

6. The radial tensioning device for machining deep groove ball bearings according to claim 1, characterized in that: Both sides of the surface of the driving seat (3) are provided with driving inclined surfaces inclined at 45°, and the surface of the passive seat (45) is provided with a force-bearing inclined surface inclined at 45°, and the driving inclined surface and the force-bearing inclined surface are arranged in contact with each other.

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