Precision detection device for bearing ring

Abstract

The utility model provides a precision detection device for a bearing ring, belongs to the technical field of bearing quality detection, and aims to solve the problems that the position of a sliding block needs to be adjusted by loosening and tightening a fixing bolt for many times during calibration of an existing comparative measuring instrument, which is time-consuming and slightly tedious. The two sliding blocks are connected in the measuring instrument main body in a dispersed and sliding manner; the two positioning lantern rings are arranged on the outer sides of the two guide columns in a sleeving mode correspondingly; the two movable clamping assemblies are arranged in the first transmission box and the second transmission box correspondingly. And the two groups of quick reset assemblies are dispersedly arranged in the measuring instrument main body. According to the utility model, the movable clamping assembly is used to replace a transmission bolt to fix and limit the slide block, so that the calibration efficiency of the lever indicator is greatly improved, and standard components of different models can be conveniently replaced to calibrate the lever indicator.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing quality inspection, and more specifically, it particularly relates to a precision detection device for bearing rings. Background Art

[0002] With the continuous development and progress of the manufacturing industry, the requirements for the quality and precision of components such as bearings are also getting higher and higher. The working principle of a bearing comparator mainly based on the comparison method, by comparing the measured bearing ring with a standard part, measuring the difference between them, so as to obtain the accurate size of the measured bearing ring. The existing bearing comparators generally consist of a measuring instrument body, a dial indicator, two sliders and corresponding positioning claws.

[0003] The existing application number: CN202223549289.1, the utility model discloses a bearing diameter measuring instrument, including a measuring table, two adjusting grooves are arranged on the measuring table, one of the adjusting grooves is arranged longitudinally, and one of the adjusting grooves is arranged obliquely. Limit columns are installed in the adjusting grooves. A bottom frame is arranged at the bottom end of the measuring table, a connecting head is installed at the rear end of the bottom frame, and a measuring dial is installed on the connecting head. A base is arranged below the measuring table, and the front end of the base is rotatably connected with the front end of the measuring table. Adjusting rods are arranged on both sides of the base, and pressing knobs are arranged on both sides of the measuring table and are slidably connected with the adjusting rods; the measuring table of the utility model can be adjusted in inclination according to the use requirements, so that the staff can adjust the inclination of the measuring table to an angle convenient for observing the measuring dial, which is convenient for the staff to measure the outer diameter of the bearing at a more convenient angle.

[0004] Based on the above, before using the comparator, it is necessary to calibrate the dial indicator on its top with a pre-prepared standard part. During this process, in order to ensure the accuracy of the subsequent measurement results, the operator needs to frequently adjust the positions of two key sliders. The movement and fixation of the sliders depend on the loosening and tightening of the fixing bolts. However, since calibration often requires multiple fine-tuning of the slider positions, it is inevitable to frequently use tools such as wrenches to loosen and tighten the bolts. This process is both time-consuming and a bit cumbersome. Summary of the Utility Model

[0005] To solve the above technical problems, the present utility model provides a precision detection device for bearing rings to solve the problem that before using the existing comparison measuring instrument, it is necessary to calibrate the dial indicator on its top with a pre-prepared standard part. During this process, to ensure the accuracy of subsequent measurement results, the operator needs to frequently adjust the positions of two key sliders. The movement and fixation of the sliders depend on the loosening and tightening of fixing bolts. However, since calibration often requires multiple fine-tuning of the slider positions, it is inevitable to frequently use tools such as wrenches to loosen and tighten the bolts, which is a time-consuming and rather cumbersome process.

[0006] The purpose and effect of a precision detection device for bearing rings of the present utility model are achieved by the following specific technical means:

[0007] A precision detection device for bearing rings, comprising a measuring instrument main body;

[0008] A dial indicator, which is fixedly connected to the top of the measuring instrument main body;

[0009] A measuring rod, which is arranged at the lower end of the dial indicator;

[0010] Sliders, two sliders are provided, and the two sliders are dispersedly and slidably connected inside the measuring instrument main body;

[0011] Guide columns, two guide columns are provided, and the two guide columns are respectively fixedly connected to the two sliders;

[0012] Positioning collar rings, two positioning collar rings are provided, and the two positioning collar rings are respectively sleeved outside the two guide columns;

[0013] A first transmission box, which is fixedly connected inside the measuring instrument main body;

[0014] A second transmission box, which is fixedly connected inside the measuring instrument main body;

[0015] Moving clamping components, two groups of moving clamping components are provided, and the two groups of moving clamping components are respectively arranged inside the first transmission box and the second transmission box;

[0016] Quick reset components, two groups of quick reset components are provided, and the two groups of quick reset components are dispersedly arranged inside the measuring instrument main body.

[0017] Furthermore, the moving clamping component includes:

[0018] A transmission rack, which is fixedly connected to the lower surfaces of the two sliders;

[0019] A first transmission shaft, which is rotatably connected inside the first transmission box;

[0020] The transmission gear is coaxially and fixedly connected to the left end of the first transmission shaft, and the transmission gear meshes with the transmission rack.

[0021] Furthermore, the moving positioning component further includes:

[0022] The separating ratchet is coaxially and fixedly connected to the right end of the first transmission shaft;

[0023] The separating pawl is rotatably connected inside the first transmission box, and the separating pawl meshes with the separating ratchet.

[0024] Furthermore, the moving positioning component further includes:

[0025] The positioning pawl is threadedly connected inside the positioning collar.

[0026] Furthermore, the moving positioning component further includes:

[0027] The limiting spring has its front end fixedly connected to the lower end of the separating pawl, and its rear end fixedly connected inside the first transmission box.

[0028] Furthermore, the quick reset component includes:

[0029] The connecting piece is fixedly connected to the lower surface of the slider;

[0030] The reset spring has its front end fixedly connected to the rear of the connecting piece, and its rear end fixedly connected inside the main body of the measuring instrument.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] Firstly, under the action of the moving positioning component, the first transmission shaft can only rotate in one direction, so that the slider can only slide backward. Only by pulling the lower end of the separating pawl backward can the slider slide forward, enabling the positioning pawl to quickly adjust its position. There is no longer a need to limit the slider by tightening or loosening bolts, greatly improving the operation efficiency. By rotating the positioning pawl, the position of the positioning pawl can be finely adjusted, further improving the calibration efficiency.

[0033] Secondly, by pulling the lower end of the separating pawl backward, under the reset action of the reset spring, the slider can quickly slide forward, driving the slider and the positioning pawl to quickly return to their original positions, facilitating re-adjusting the position to calibrate the lever gauge with the bearing standard parts of the next model.

[0034] This utility model replaces the traditional bolt for fixing and limiting the slider with a movable clamping component. By setting a rotatable positioning claw, it is convenient to finely adjust the position of the positioning claw, greatly improving the adjustment efficiency of the positions of the positioning claw and the slider, facilitating the quick calibration of the dial indicator. By pulling the lower end of the separating pawl backward, the slider and the positioning claw can quickly return to their original positions, facilitating the replacement of standard parts of different models for calibrating the dial indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 FIG. is a schematic diagram of the overall structure of this utility model.

[0036] Figure 2 FIG. is a schematic diagram of the structure of the first transmission box of this utility model.

[0037] Figure 3 FIG. is a schematic diagram of the transmission rack of this utility model.

[0038] Figure 4 FIG. is a schematic diagram of the first transmission shaft of this utility model.

[0039] Figure 5 FIG. is a schematic diagram of the connecting piece of this utility model.

[0040] Figure 6 FIG. is a schematic diagram of the positioning claw of this utility model.

[0041] In the figure, the corresponding relationship between the component names and the drawing reference numerals is as follows:

[0042] 1. Measuring instrument main body; 2. Dial indicator; 201. Measuring rod; 3. Slider; 301. Guide post; 4. Positioning collar; 401. Positioning claw; 5. First transmission box; 6. Second transmission box; 7. Transmission rack; 8. First transmission shaft; 801. Transmission gear; 802. Separation ratchet; 9. Separation pawl; 901. Limit spring; 10. Connecting piece; 11. Return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following further describes in detail the embodiments of this utility model in conjunction with the drawings and examples. The following examples are used to illustrate this utility model, but cannot be used to limit the scope of this utility model.

[0044] Example 1:

[0045] As shown in Figure 1 to Figure 6 shown:

[0046] This utility model provides a precision detection device for bearing rings, including a measuring instrument main body 1;

[0047] A dial indicator 2, which is fixedly connected to the top of the measuring instrument main body 1;

[0048] The measuring rod 201 is arranged at the lower end of the dial indicator 2;

[0049] The slider 3 is provided with two pieces, and the two sliders 3 are slidably connected in the measuring instrument main body 1 separately;

[0050] The guide posts 301 are provided with two pieces, and the two guide posts 301 are respectively fixedly connected to the two sliders 3;

[0051] The positioning collar 4 is provided with two pieces, and the two positioning collars 4 are respectively sleeved on the outer sides of the two guide posts 301;

[0052] The first transmission box 5 is fixedly connected inside the measuring instrument main body 1;

[0053] The second transmission box 6 is fixedly connected inside the measuring instrument main body 1;

[0054] The moving positioning components are provided with two groups, and the two groups of moving positioning components are respectively arranged inside the first transmission box 5 and the second transmission box 6.

[0055] Among them, the moving positioning component includes:

[0056] The transmission rack 7 is fixedly connected to the lower sides of the two sliders 3;

[0057] The first transmission shaft 8 is rotatably connected inside the first transmission box 5;

[0058] The transmission gear 801 is coaxially and fixedly connected to the left end of the first transmission shaft 8, and the transmission gear 801 meshes with the transmission rack 7. The function is that when the positioning collar 4 slides backward, it can drive the slider 3 to slide simultaneously, and the slider 3 drives the first transmission shaft 8 to rotate through the gear-rack transmission mechanism jointly constituted by the meshing of the transmission gear 801 and the transmission rack 7.

[0059] Among them, the moving positioning component further includes:

[0060] The separating ratchet 802 is coaxially and fixedly connected to the right end of the first transmission shaft 8;

[0061] The separating ratchet pawl 9 is rotatably connected inside the first transmission box 5, and the separating ratchet pawl 9 meshes with the separating ratchet 802. The function is that under the action of the ratchet-pawl transmission mechanism jointly constituted by the meshing of the separating ratchet pawl 9 and the separating ratchet 802, the first transmission shaft 8 can only rotate unidirectionally, so that the positioning collar 4 can only slide backward.

[0062] Among them, the moving positioning component further includes:

[0063] The positioning claw 401 is threadedly connected inside the positioning collar 4. Its function is that through the threaded transmission mechanism formed by the positioning claw 401 and the positioning collar 4, rotating the positioning claw 401 can make the positioning claw 401 move back and forth, thus enabling fine adjustment.

[0064] Among them, the moving positioning component further includes:

[0065] The limiting spring 901 has its front end fixedly connected to the lower end of the separating pawl 9, and its rear end fixedly connected inside the first transmission box 5. Its function is that by pulling the lower end of the separating pawl 9 backward, the separating pawl 9 can be disengaged from the separating ratchet 802, and then the positioning collar 4 can be moved forward.

[0066] The specific usage method and function of this embodiment:

[0067] When it is necessary to detect a certain type of bearing, first place the standard part of this type of bearing on the surface of the measuring instrument main body 1, and then adjust the approximate positions of the two positioning collars 4. At this time, first slide the positioning collar 4 backward so that the end of the positioning claw 401 contacts the outer surface of the bearing. During the backward sliding process of the positioning collar 4, the slider 3 can be driven to slide simultaneously. The slider 3 drives the first transmission shaft 8 to rotate through the gear-rack transmission mechanism formed by the transmission gear 801 and the transmission rack 7. Under the action of the ratchet-pawl transmission mechanism formed by the separating pawl 9 and the separating ratchet 802, the first transmission shaft 8 can only rotate in one direction, so that the positioning collar 4 can only slide backward; hold the positioning collar 4 by hand and pull the lower end of the separating pawl 9 backward, the separating pawl 9 can be disengaged from the separating ratchet 802, and then the positioning collar 4 can be moved forward, greatly improving the moving efficiency; then through the threaded transmission mechanism formed by the positioning claw 401 and the positioning collar 4, rotating the positioning claw 401 can make the positioning claw 401 move slightly back and forth. When the reading of the dial indicator 2 is "zero", it indicates that the adjustment is completed, and then the outer diameter of the bearings of the same type can be compared and detected.

[0068] Embodiment 2:

[0069] On the basis of Embodiment 1, as shown in Appendix Figure 1 to Appendix Figure 6 shown, it further includes a quick reset component. Two sets of quick reset components are provided and are dispersedly arranged inside the measuring instrument main body 1.

[0070] Among them, the quick reset component includes:

[0071] The connecting piece 10 is fixedly connected under the slider 3;

[0072] The reset spring 11 has its front end fixedly connected behind the connecting piece 10 and its rear end fixedly connected inside the main body 1 of the measuring instrument.

[0073] Specific usage mode and function of this embodiment:

[0074] When the positioning collar 4 slides backward, the reset spring 11 is stretched. After the separating pawl 9 disengages from the separating ratchet 802, if the positioning collar 4 is not held by hand at this time, then under the reset action of the reset spring 11, the slider 3 can slide forward quickly, driving the positioning collar 4 and the positioning claw 401 to quickly return to their original positions, facilitating re-adjusting the position and using the bearing marking part of the next model to calibrate the dial indicator 2.

[0075] In this article, the following points need to be noted:

[0076] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0077] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0078] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A bearing ring accuracy detection device, comprising a measuring instrument body, a lever gauge, a measuring rod, a slider, a guide column, a positioning collar, a first transmission box, a second transmission box, a moving positioning assembly and a quick reset assembly; characterized in that: The lever scale is fixedly connected to the top of the measuring instrument body; the measuring rod is arranged at the lower end of the lever scale; two sliders are arranged, and the two sliders are slidably connected in a dispersed manner inside the measuring instrument body; two guide columns are arranged, and the two guide columns are respectively fixedly connected on the two sliders; two positioning rings are arranged, and the two positioning rings are respectively sleeved on the outside of the two guide columns; the first transmission box is fixedly connected inside the measuring instrument body; the second transmission box is fixedly connected inside the measuring instrument body; two groups of mobile card components are arranged, and the two groups of mobile card components are respectively arranged in the first transmission box and the second transmission box; two groups of quick reset components are arranged, and the two groups of quick reset components are dispersedly arranged inside the measuring instrument body.

2. A bearing ring accuracy detection device as claimed in claim 1, characterized in that: The movable positioning assembly includes: a transmission rack, a first transmission shaft and a transmission gear; the transmission rack is fixedly connected under the two sliding blocks; the first transmission shaft is rotatably connected inside the first transmission box; the transmission gear is coaxially fixedly connected to the left end of the first transmission shaft, and the transmission gear is meshed with the transmission rack.

3. A bearing ring accuracy detection device as claimed in claim 2, characterized in that: The movable positioning assembly also includes: a separation ratchet and a separation pawl; the separation ratchet is coaxially fixedly connected to the right end of the first transmission shaft; the separation pawl is rotatably connected to the inside of the first transmission box, and the separation pawl is meshed with the separation ratchet.

4. A bearing ring accuracy detection device as claimed in claim 3, characterized in that: The movable positioning assembly also includes: a positioning claw; the positioning claw is threadedly connected inside the positioning collar.

5. A bearing ring accuracy detection device as claimed in claim 4, characterized in that: The movable positioning assembly also includes: a limit spring; the front end of the limit spring is fixedly connected to the lower end of the separation pawl, and the rear end of the limit spring is fixedly connected to the inside of the first transmission box.

6. A bearing ring accuracy detection device as claimed in claim 1, characterized in that: The quick reset component includes: a connecting piece and a reset spring; the connecting piece is fixedly connected under the slider; the front end of the reset spring is fixedly connected behind the connecting piece, and the rear end of the reset spring is fixedly connected inside the measuring instrument body.

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