Retainer inner circle precision detection device

Abstract

The utility model relates to the technical field of retainer detection, and discloses a retainer inner circle precision detection device, which comprises a fixed seat, a driving roller rotationally connected onto the fixed seat and driven by a hand wheel, and two positioning rollers elastically connected to the lower side of the driving roller. A detection mechanism is arranged on the upper side of the driving roller and comprises a sliding seat which is vertically and slidably connected with the fixed seat, a dial indicator is fixedly connected to one side of the sliding seat, a sliding block is elastically connected to the lower side of the sliding seat, a detection wheel is rotatably connected to the sliding block, and the detection wheel is in sliding contact with a dial indicator probe rod. According to the holder inner circle precision detection device, after the lower side of the holder inner ring is in contact with the driving roller, the positioning roller ascends to fix and limit the holder, and when the hand wheel is rotated to drive the driving roller to rotate, the detection wheel rotates along the holder inner ring and cooperates with the dial indicator to detect the inner ring, operation is easy and convenient, and batch detection operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cage detection, in particular to a precision inner circle detection device for a cage. Background Art

[0002] A cage, also known as a bearing cage, refers to a bearing part that partially wraps all or part of the rolling elements and moves with them, used to isolate the rolling elements, and usually also guides and holds the rolling elements in the bearing.

[0003] To ensure the working precision of the cage, after production, the diameter, radian, etc. of the inner ring of the cage need to be precisely measured. In the existing inner circle detection of the cage, a dial indicator is fixed on a multi-axis joint limit frame, and the probe of the dial indicator is brought into contact with the inner circle of the cage by adjusting the multi-axis joint limit frame. Then, the cage is manually rotated to make its inner circle contact the probe for a full circle to complete the measurement of its inner circle. The operation is relatively cumbersome and is not conducive to the rapid detection of a batch of cages. Therefore, there is an urgent need for a precision inner circle detection device for a cage to solve the above problems. Summary of the Utility Model

[0004] In view of the above problems that in the existing method, the probe of the dial indicator is brought into contact with the inner circle of the cage by adjusting the multi-axis joint limit frame, and then the cage is manually rotated to make its inner circle contact the probe for a full circle to complete the measurement of its inner circle, and the operation is relatively cumbersome, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a precision inner circle detection device for a cage, aiming to solve the problems that the probe of the dial indicator is brought into contact with the inner circle of the cage by adjusting the multi-axis joint limit frame, and then the cage is manually rotated to make its inner circle contact the probe for a full circle to complete the measurement of its inner circle, and the operation is relatively cumbersome.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A precision inner circle detection device for a cage, including a fixed seat, a driving roller is rotatably connected to the fixed seat, the driving roller is driven by a handwheel, two positioning rollers are elastically connected to the lower side of the driving roller, the driving roller and the positioning rollers cooperate to limit the cage, a detection mechanism is arranged on the upper side of the driving roller, the detection mechanism includes a sliding seat slidably connected to the fixed seat in the vertical direction, a dial indicator is fixedly connected to one side of the sliding seat, a sliding block is elastically connected to the lower side of the sliding seat, a detection wheel is rotatably connected to the sliding block, and the detection wheel is in sliding contact with the probe of the dial indicator.

[0007] As a preferred embodiment of the precision inspection device for the inner circle of the cage of the present utility model, the following is provided: A positioning mechanism is connected to the positioning roller. The positioning mechanism includes a connecting plate connected to the positioning roller. A fixing plate is provided on the lower side of the connecting plate. The fixing plate is fixedly connected to the fixed seat. A limiting rod is fixedly connected to the end of the fixing plate. The limiting rod is slidably connected to the connecting plate, and a first spring is elastically connected between the connecting plate and the fixing plate.

[0008] As a preferred embodiment of the precision inspection device for the inner circle of the cage of the present utility model, the following is provided: The positioning roller includes two mutually slidable rolling platforms. One rolling platform is rotatably connected to the connecting plate. A U-shaped plate is slidably connected to the connecting plate. The U-shaped plate is rotatably connected to the other rolling platform, and a screw rod is rotatably connected to the U-shaped plate. The screw rod is rotatably connected to the connecting plate.

[0009] As a preferred embodiment of the precision inspection device for the inner circle of the cage of the present utility model, the following is provided: Springs II are fixedly connected to both sides of the slider. One end of each spring II is fixedly connected to the sliding seat.

[0010] As a preferred embodiment of the precision inspection device for the inner circle of the cage of the present utility model, the following is provided: A rotating shaft is rotatably connected to the slider. The rotating shaft is coaxially and fixedly connected to the inspection wheel.

[0011] As a preferred embodiment of the precision inspection device for the inner circle of the cage of the present utility model, the following is provided: A bolt is threadedly connected to the sliding seat. The bolt is in abutting cooperation with the fixed seat.

[0012] Advantages of the present utility model:

[0013] 1. After the lower side of the inner ring of the cage of the present utility model contacts the driving roller, the positioning roller rises to fix and limit the cage. When the handwheel is rotated to drive the driving roller to rotate, the inspection wheel rotates along the inner ring of the cage and cooperates with the micrometer to detect the inner ring. The operation is simple and convenient, which is beneficial to batch inspection operations.

[0014] 2. When the screw rod is rotated, the U-shaped plate can drive the rolling platform connected thereto to move. The axial width between the two rolling platforms can be adjusted. At the same time, in cooperation with the positioning mechanism, it can adapt to and effectively fix cages of different specifications, improving the applicability. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of the precision inner circle detection device for the cage of the present utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the driving roller and positioning roller of the precision inner circle detection device for the cage of the present utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the connecting plate and positioning roller of the precision inner circle detection device for the cage of the present utility model.

[0019] Figure 4 This is a schematic diagram of the structural disassembly of the detection mechanism of the precision inner circle detection device for the cage of the present utility model.

[0020] 1. Fixed seat; 2. Driving roller; 201. Handwheel; 3. Positioning roller; 301. Rolling table; 302. U-shaped plate; 303. Screw; 4. Positioning mechanism; 401. Connecting plate; 402. Fixed plate; 403. Limiting rod; 404. First spring; 5. Detection mechanism; 501. Slide seat; 502. Dial indicator; 503. Slide block; 504. Second spring; 505. Detection wheel; 506. Rotating shaft; 507. Bolt. Specific embodiments

[0021] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0022] Embodiment 1

[0023] Refer to Figures 1-4 , which is the first embodiment of the present utility model, provides a precision inner circle detection device for a cage. This precision inner circle detection device for a cage includes a fixed seat 1, a driving roller 2 is rotatably connected to the fixed seat 1, the driving roller 2 is driven by a handwheel 201, two positioning rollers 3 are elastically connected to the lower side of the driving roller 2, the driving roller 2 and the positioning rollers 3 cooperate to limit the cage, and a detection mechanism 5 is provided above the driving roller 2;

[0024] The detection mechanism 5 includes a slide seat 501 that is vertically slidably connected to the fixed seat 1, a dial indicator 502 is fixedly connected to one side of the slide seat 501, a slide block 503 is elastically connected to the lower side of the slide seat 501, a detection wheel 505 is rotatably connected to the slide block 503, and the detection wheel 505 is in sliding contact with the probe of the dial indicator 502.

[0025] In the above technical solution, the positioning roller 3 rises under the action of elastic force in the vertical direction and cooperates with the driving roller 2 to form a triangular structure to fix the cage. The driving roller 2 contacts the inner ring of the cage, and the positioning roller 3 contacts the outer ring of the cage. Moving the slide 501 up and down can drive the detection wheel 505 to elastically contact the inner ring of the cage. Rotating the handwheel 201 drives the driving roller 2 to rotate. When the driving roller 2 drives the cage to rotate, the detection wheel 505 rotates along the inner ring of the cage to detect its inner circle. When its inner circle is irregular, the deviation data can be displayed through the dial indicator 502.

[0026] It can be understood that, referring to Figure 2 , the driving roller 2 and the handwheel 201 are both rotationally connected to the fixed seat 1 through coupling shafts, and the two coupling shafts are connected by a chain drive.

[0027] A positioning mechanism 4 is connected to the positioning roller 3. The positioning mechanism 4 includes a connecting plate 401 connected to the positioning roller 3. A fixing plate 402 is provided on the lower side of the connecting plate 401. The fixing plate 402 is fixedly connected to the fixed seat 1. A limiting rod 403 is fixedly connected to the end of the fixing plate 402. The limiting rod 403 is slidably connected to the connecting plate 401, and a first spring 404 is elastically connected between the connecting plate 401 and the fixing plate 402.

[0028] In the above technical solution, the limiting rod 403 limits the vertical sliding of the connecting plate 401. The first spring 404 drives the connecting plate 401 to rise, which can drive the two positioning rollers 3 to move synchronously, and finally cooperate with the driving roller 2 to clamp and fix the cage.

[0029] Both sides of the slider 503 are fixedly connected with second springs 504, and one end of each second spring 504 is fixedly connected to the slide 501.

[0030] In the above technical solution, the slide 501 is slidably matched with the slide hole opened on the fixed seat 1. After the cage is fixed, under the cooperation of the second spring 504 and the slider 503, the slide 501 rises to drive the detection wheel 505 to elastically abut against the inner circle of the cage.

[0031] A rotating shaft 506 is rotatably connected to the slider 503, and the rotating shaft 506 is coaxially and fixedly connected to the detection wheel 505.

[0032] In the above technical solution, the rotating shaft 506 rotates in place on the slider 503, and the detection wheel 505 elastically contacts the inner circle of the cage. When the inner circle of the cage is irregular, the second spring 504 and the slider 503 cooperate to keep the detection wheel 505 in contact with the cage all the time. Since the dial indicator 502 is fixedly connected to the slide 501, the vertical displacement of the detection wheel 505 drives the probe of the dial indicator 502 to move, and the dial indicator 502 can display the data.

[0033] It can be understood that when the detection wheel 505 is not in contact with the cage, the probe of the dial indicator 502 abuts against the detection wheel 505 with force, causing the pointer of the dial indicator 502 to point to a non-zero scale. When the detection wheel 505 is in contact with the cage, the force of the probe of the dial indicator 502 abutting against the detection wheel 505 is smaller. At this time, the data pointed to by the pointer of the dial indicator 502 is the initial data. The displacement generated by the detection wheel 505 following the change and movement of the cage causes the pointer of the dial indicator 502 to point to the data again, which is the final data. The difference between the two data is the deviation data of the inner circle of the cage.

[0034] A bolt 507 is threadedly connected to the sliding seat 501, and the bolt 507 is in abutting fit with the fixed seat 1.

[0035] In the above technical solution, a through hole is provided on the fixed seat 1, and the through hole is communicated with the sliding hole. The bolt 507 passes through the communication part and is connected to the sliding seat 501. After the position of the sliding seat 501 is determined, when the bolt 507 is rotated to abut against the fixed seat 1, the sliding of the sliding seat 501 can be limited.

[0036] During the use process, first press down the connecting plate 401 to drive the positioning roller 3 to descend. Subsequently, the lower side of the inner ring of the cage is brought into contact with the driving roller 2. Release the connecting plate 401, and the first spring 404 drives the positioning roller 3 to rise and abut against the outer ring of the cage. Raise the sliding seat 501 to make the detection wheel 505 elastically contact the upper side of the inner ring of the cage. After rotating the bolt 507 to abut against the fixed seat 1, the sliding of the sliding seat 501 can be limited. Subsequently, rotate the handwheel 201 to drive the driving roller 2 to rotate. The driving roller 2 drives the cage to rotate. When the inner circle of the cage is irregular, the detection wheel 505 displaces vertically. At this time, the contact force between the probe of the dial indicator 502 and the detection wheel 505 changes, and the relative scale can be pointed to by the pointer to realize the detection of the deviation data of the inner circle of the cage.

[0037] Embodiment 2

[0038] Refer to Figure 3 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the positioning roller 3 includes two mutually sliding connecting rolling platforms 301. One rolling platform 301 is rotatably connected to the connecting plate 401. A U-shaped plate 302 is slidably connected to the connecting plate 401. The U-shaped plate 302 is rotatably connected to the other rolling platform 301, and a screw 303 is rotatably connected to the U-shaped plate 302. The screw 303 is rotatably connected to the connecting plate 401.

[0039] In the above technical solution, the turntable 301 has a T-shaped structure. The two turntables 301 are connected by a shaft coupling in a sliding manner. The protruding parts of the two turntables 301 can limit the cage, so that the cage can rotate in place under the drive of the driving roller 2. By rotating the screw 303, the U-shaped plate 302 can be driven to move, so as to adjust the distance between the two turntables 301 axially, and thus adjust and adapt to cages of different specifications.

[0040] The remaining structures are the same as those of Embodiment 1.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A precision detection device for the inner circle of a cage, characterized in that: It comprises a fixed seat (1), a driving roller (2) is rotatably connected to the fixed seat (1), the driving roller (2) is driven by a hand wheel (201), two positioning rollers (3) are elastically connected to the lower side of the driving roller (2), the driving roller (2) and the positioning roller (3) cooperate to limit the position of the retaining frame, and a detection mechanism (5) is provided on the upper side of the driving roller (2); The detection mechanism (5) comprises a slide seat (501) vertically slidably connected to a fixed seat (1); a micrometer (502) is fixedly connected to one side of the slide seat (501); a slider (503) is elastically connected to the lower side of the slide seat (501); a detection wheel (505) is rotatably connected to the slider (503); and the detection wheel (505) is in sliding contact with a probe rod of the micrometer (502).

2. The device for precisely detecting the inner circle of a retainer according to claim 1, characterized in that: The positioning roller (3) is connected to a positioning mechanism (4), the positioning mechanism (4) comprising a connecting plate (401) connected to the positioning roller (3), a fixing plate (402) being provided at the lower side of the connecting plate (401), the fixing plate (402) being fixedly connected to the fixing seat (1), a limiting rod (403) being fixedly connected to the end of the fixing plate (402), the limiting rod (403) being slidably connected to the connecting plate (401), and a spring (404) being elastically connected between the connecting plate (401) and the fixing plate (402).

3. The device for precisely detecting the inner circle of a retainer according to claim 2, characterized in that: The positioning roller (3) comprises two rollers (301) slidably connected to each other, one of the rollers (301) is rotatably connected to a connecting plate (401), a U-shaped plate (302) is slidably connected to the connecting plate (401), the U-shaped plate (302) is rotatably connected to the other roller (301), and a screw (303) is rotatably connected to the U-shaped plate (302), and the screw (303) is rotatably connected to the connecting plate (401).

4. The device for precisely detecting the inner circle of a retainer according to claim 1, characterized in that: The two sides of the slider (503) are fixedly connected with spring 2 (504), and one end of the spring 2 (504) is fixedly connected to the slide seat (501).

5. The device for precisely detecting the inner circle of a retainer according to claim 1, characterized in that: The sliding block (503) is rotatably connected to a rotating shaft (506), and the rotating shaft (506) is coaxially connected and fixed to the detection wheel (505).

6. The device for precisely detecting the inner circle of a retainer according to claim 1, characterized in that: The sliding seat (501) is threadedly connected with a bolt (507), and the bolt (507) is in abutment with the fixing seat (1).

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