Semicircular bearing distortion measuring device

Abstract

The invention relates to the technical field of bearings, in particular to a semicircular bearing distortion measuring device which comprises an axial positioning assembly, a radial positioning assembly, a first measuring assembly and a second measuring assembly. Each first measuring assembly comprises at least two first elastic measuring pieces arranged in the axial direction of the side face and a first linear reciprocating driving mechanism used for releasing the first elastic measuring pieces. Each second measuring assembly comprises at least two second elastic measuring pieces arranged in the axial direction of the end face and a second linear reciprocating driving mechanism used for releasing the second elastic measuring pieces. The to-be-measured semicircular bearing is fixed through the axial positioning assembly and the radial positioning assembly, and the first elastic measuring piece and the second elastic measuring piece are released by the first linear reciprocating driving mechanism and the second linear reciprocating driving mechanism respectively, so that the first elastic measuring piece and the second elastic measuring piece are elastically reset and make contact with the semicircular bearing for measurement. Detection precision reduction caused by bearing deformation can be avoided, and the service life of the elastic measuring piece is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and particularly to a semi-circular bearing distortion measuring device. Background Art

[0002] After the semi-circular bearing is processed, it generally needs to be measured for distortion. The measurement indexes include the height dimension difference of the four apex angles at both ends of the bearing, the dimension difference of the two horizontal lines formed by the four apex angles, and the dimension difference of the two diagonals. However, due to the non-closed structure of the bearing, it is difficult to position during measurement. And in the prior art, a linear driving mechanism such as a cylinder or an oil cylinder is usually used to directly drive the measuring head to contact the bearing for measurement. This direct pressure application method has a large acting force, which will cause the measuring head to impact the bearing, affecting the measurement accuracy of the bearing and damaging the measuring head at the same time. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the problems that it is difficult to position the semi-circular bearing during distortion measurement in the prior art, and a linear driving mechanism such as a cylinder or an oil cylinder is usually used to directly drive the measuring head to contact the bearing for measurement. This direct pressure application method has a large acting force, which will cause the measuring head to impact the bearing, affecting the measurement accuracy of the bearing and damaging the measuring head at the same time. Now, a semi-circular bearing distortion measuring device is provided.

[0004] To solve the above technical problem, the present invention adopts the following technical solution: a semi-circular bearing distortion measuring device, the semi-circular bearing includes a bearing body, and both ends of the bearing body along its circumference are distortion measurement ends for the distortion measuring device to measure. Each distortion measurement end has an end face and a side face. The distortion measuring device includes:

[0005] An axial positioning component for axially positioning the semi-circular bearing;

[0006] A radial positioning component, including a radial positioning seat for supporting the semi-circular bearing and a radial pressure applying mechanism for applying pressure to the semi-circular bearing to limit it on the radial positioning seat;

[0007] The first measurement component corresponds to the number of the distortion measurement ends, and each group of the first measurement components includes at least two first elastic measurement elements axially arranged along the side face and a first linear reciprocating driving mechanism for releasing the first elastic measurement elements to make them contact the side face flexibly;

[0008] And a second measurement component, corresponding to the number of the distortion measurement ends, and each group of the second measurement components includes at least two second elastic measurement elements axially arranged along the end face and a second linear reciprocating driving mechanism for releasing the second elastic measurement elements to make them contact the end face flexibly.

[0009] Furthermore, each set of first measurement components includes two first elastic measurement members respectively disposed at both ends of the side surface. The first elastic measurement members in the two sets of first measurement components correspond to each other one by one and are arranged in a rectangular distribution.

[0010] Each set of second measurement components includes two second elastic measurement members respectively disposed at both ends of the end surface. The second elastic measurement members in the two sets of second measurement components correspond to each other one by one and are arranged in a rectangular distribution.

[0011] Furthermore, the first elastic measurement member protrudes radially to form a first blocking portion, and a first abutting plate for abutting against the first blocking portion to cause the first elastic measurement member to contract is fixed to the output end of the first linear reciprocating driving mechanism.

[0012] The second elastic measurement member protrudes radially to form a second blocking portion, and a second abutting plate for abutting against the second blocking portion to cause the second elastic measurement member to contract is fixed to the output end of the second linear reciprocating driving mechanism.

[0013] Furthermore, the first measurement head of the first elastic measurement member and the second measurement head of the second elastic measurement member are both of a narrow head structure.

[0014] Furthermore, the axial positioning assembly includes an axial positioning seat, a pressing block, and an axial pressing mechanism for driving the pressing block to reciprocate axially along the semi-circular bearing to clamp the semi-circular bearing between the axial positioning seat and the pressing block.

[0015] Furthermore, the radial pressing mechanism is a single-acting cylinder.

[0016] Furthermore, each torsion measurement end protrudes to form a lug. The radial positioning seat has a slot for the lug to be inserted into and a through slot for the second elastic measurement member to pass through.

[0017] Furthermore, the radial positioning assembly further includes a third linear reciprocating driving mechanism for driving the radial pressing mechanism to reciprocate axially along the semi-circular bearing.

[0018] Furthermore, the plurality of second elastic measurement members in the two second measurement components are released by the same second linear reciprocating driving mechanism.

[0019] Furthermore, a pressure head is installed at the output end of the radial pressing mechanism, and the pressure head is made of plastic.

[0020] Advantages of the present invention: The present invention fixes the semi-circular bearing to be measured through the axial positioning component and the radial positioning component, and uses the first linear reciprocating driving mechanism and the second linear reciprocating driving mechanism to release the first elastic measuring component and the second elastic measuring component respectively, so that the two are elastically reset and contact with the semi-circular bearing for measurement, which can avoid the reduction of detection accuracy caused by bearing deformation and improve the service life of the elastic measuring component. Description of the Drawings

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a three-dimensional schematic diagram of the first perspective of the present invention;

[0023] Figure 2 is a three-dimensional schematic diagram of the second perspective of the present invention;

[0024] Figure 3 is the front view of the present invention;

[0025] Figure 4 is a three-dimensional schematic diagram of the cooperation of the first measurement component and the second measurement component of the present invention;

[0026] Figure 5 is the front view of the cooperation of the first measurement component and the second measurement component of the present invention;

[0027] Figure 6 is a three-dimensional schematic diagram of the first measurement component of the present invention;

[0028] Figure 7 is the front view of the first measurement component of the present invention;

[0029] Figure 8 is the distribution diagram of four first measurement components of the present invention;

[0030] Figure 9 is a three-dimensional schematic diagram of the second measurement component of the present invention;

[0031] Figure 10 is the front view of the second measurement component of the present invention;

[0032] Figure 11 is a three-dimensional schematic diagram of the semi-circular bearing;

[0033] In the figure:

[0034] 1. Semi-circular bearing; 101. Bearing body; 102. Twisting measurement end; 1021. Side surface; 1022. End surface; 103. Lug;

[0035] 2. Axial positioning component; 201. Axial positioning seat; 202. Pushing block; 203. Axial pressing mechanism;

[0036] 3. Radial positioning assembly; 301. Radial positioning seat; 3011. Card slot; 3012. Through slot; 302. Radial pressure applying mechanism; 303. Pressure head; 304. Third linear reciprocating driving mechanism;

[0037] 4. First measurement assembly; 401. First elastic measuring member; 4011. First blocking portion; 4012. First measuring head; 402. First linear reciprocating driving mechanism; 403. First abutting plate;

[0038] 5. Second measurement assembly; 501. Second elastic measuring member; 5011. Second blocking portion; 5012. Second measuring head; 502. Second linear reciprocating driving mechanism; 503. Second abutting plate;

[0039] 6. Base. Detailed implementation manner

[0040] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner. Therefore, they only show the components related to the present invention. Directions and references (such as up, down, left, right, etc.) can only be used to assist in describing the features in the drawings. Therefore, the following specific implementation manner is not adopted in a restrictive sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalent forms.

[0041] As Figures 1-3 shown, a semi-circular bearing distortion measuring device, the semi-circular bearing 1 includes a bearing main body 101, the bearing main body 101 is semi-circular in shape, and the two ends along its circumference are distortion measuring ends 102 for the distortion measuring device to measure. Each distortion measuring end 102 has an end face 1022 and a side face 1021. As Figure 11 shown, this distortion measuring device includes a base 6, and installed on the base 6 are:

[0042] Axial positioning assembly 2 for axially positioning the semi-circular bearing 1;

[0043] Radial positioning assembly 3, including a radial positioning seat 301 for supporting the semi-circular bearing 1 and a radial pressure applying mechanism 302 for applying pressure to the semi-circular bearing 1 to limit it on the radial positioning seat 301. During measurement, the semi-circular bearing 1 is in an inverted state, that is, its opening is downward. The radial positioning seat 301 supports the semi-circular bearing 1 from below, and the radial pressure applying mechanism 302 applies pressure to the semi-circular bearing 1 from above. The two cooperate to clamp the semi-circular bearing 1 between them. The pressure applied by the radial pressure applying mechanism 302 is relatively small, approximately 4 - 50 N, and it only needs to ensure that the semi-circular bearing 1 does not float upward during measurement;

[0044] The first measurement component 4, corresponding to the number of the twist measurement ends 102 and located on the side of the semi-circular bearing 1 to measure the side surface 1021. Each first measurement component 4 includes at least two first elastic measurement elements 401 arranged along the axial direction of the side surface 1021 and a first linear reciprocating drive mechanism 402 for releasing the first elastic measurement elements 401 to make them in flexible contact with the side surface 1021. The first elastic measurement element 401 is an electric pen. When the first linear reciprocating drive mechanism 402 moves in the direction away from the semi-circular bearing 1, it drives the first elastic measurement elements 401 to contract and store energy and move away from the semi-circular bearing 1. When the first linear reciprocating drive mechanism 402 moves in the direction close to the semi-circular bearing 1, the first elastic measurement elements 401 are released under the elastic action and contact the semi-circular bearing 1 for measurement. In this structure, the first linear reciprocating drive mechanism 402 indirectly drives the first elastic measurement elements 401 instead of directly pushing them against the semi-circular bearing 1. The acting force is small, which can avoid the reduction of the detection progress caused by the deformation of the bearing during this process and improve the service life of the first elastic measurement elements 401.

[0045] And the second measurement component 5, corresponding to the number of the twist measurement ends 102 and located below the semi-circular bearing 1 for measuring the end surface 1022. Each second measurement component 5 includes at least two second elastic measurement elements 501 arranged along the axial direction of the end surface 1022 and a second linear reciprocating drive mechanism 502 for releasing the second elastic measurement elements 501 to make them in flexible contact with the end surface 1022. The first elastic measurement element 401 is an electric pen. When the second linear reciprocating drive mechanism 502 moves in the direction away from the semi-circular bearing 1, it drives the second elastic measurement elements 501 to contract and store energy and move away from the semi-circular bearing 1. When the second linear reciprocating drive mechanism 502 moves in the direction close to the semi-circular bearing 1, the second elastic measurement elements 501 are released under the elastic action and contact the semi-circular bearing 1 for measurement. In this structure, the second linear reciprocating drive mechanism 502 indirectly drives the second elastic measurement elements 501 instead of directly pushing them against the semi-circular bearing 1. The acting force is small, which can avoid the reduction of the detection progress caused by the deformation of the bearing during this process and improve the service life of the second elastic measurement elements 501;

[0046] During measurement, first place the semi-circular bearing 1 to be measured on the radial positioning seat 301. After the axial positioning assembly 2 axially positions it, the radial pressing mechanism 302 presses down to clamp the semi-circular bearing 1 between it and the radial positioning seat 301. Then, the second linear reciprocating drive mechanism 502 moves upward, releasing the restriction on the second elastic measuring member 501 to release it. The second elastic measuring member 501 contacts the end face 1022 of the torsion measuring end 102 and measures its height. Then, the first linear reciprocating drive mechanism 402 moves towards the semi-circular bearing 1, releasing the restriction on the first elastic measuring member 401 to release it. The first elastic measuring member 401 contacts the side face 1021 of the torsion measuring end 102 and measures its position. In this application, first, the semi-circular bearing 1 to be measured is fixed by the axial positioning assembly 2 and the radial positioning assembly 3, and the first elastic measuring member 401 and the second elastic measuring member 501 are respectively released by the first linear reciprocating drive structure and the second linear reciprocating drive mechanism 502, so that both elastically reset and are in flexible contact with the semi-circular bearing 1 for measurement, which can avoid the reduction of detection accuracy caused by bearing deformation and improve the service life of the elastic measuring member.

[0047] In some examples, such as Figures 6-8 shown, each group of first measurement assemblies 4 includes two first elastic measuring members 401 correspondingly arranged at both ends of the side face 1021. The first elastic measuring members 401 in the two groups of first measurement assemblies 4 correspond one by one and are arranged in a rectangular distribution, namely 401a, 401b, 401c, and 401d. The dimensions measured by 401a and 401c are H1, the dimensions measured by 401b and 401d are H2. The difference between H1 and H2 is the linear dimension difference in the horizontal direction, which is ≤ 0.5. The dimensions measured by 401a and 401d are H3, the dimensions measured by 401b and 401c are H4. The difference between H3 and H4 is the diagonal difference, which is ≤ 0.55;

[0048] Such as Figure 9 and Figure 10 shown, each group of second measurement assemblies 5 includes two second elastic measuring members 501 correspondingly arranged at both ends of the end face 1022. The second elastic measuring members 501 in the two groups of second measurement assemblies 5 correspond one by one and are arranged in a rectangular distribution. The extreme value difference of the heights measured by the four second elastic measuring members 501 is ≤ 0.2;

[0049] In some examples, such as Figures 4-7As shown, the first elastic measuring member 401 is radially protruded to form a first blocking portion 4011. A first abutting plate 403 for abutting against the first blocking portion 4011 to contract the first elastic measuring member 401 is fixed to the output end of the first linear reciprocating driving mechanism 402. The first linear reciprocating driving mechanism 402 can be, but is not limited to, a cylinder, an electric cylinder, etc. The first abutting plate 403 is located between the first blocking portion 4011 and the semi-circular bearing 1, and a through groove for part of the first elastic measuring member 401 to extend out is formed at the bottom of the first abutting plate 403. The through groove is of a U-shaped structure, so as to increase the acting area with the first blocking portion 4011.

[0050] As Figure 9 and Figure 10 shown, the second elastic measuring member 501 is radially protruded to form a second blocking portion 5011. A second abutting plate 503 for abutting against the second blocking portion 5011 to contract the second elastic measuring member 501 is fixed to the output end of the second linear reciprocating driving mechanism 502. The second linear reciprocating driving mechanism 502 can be, but is not limited to, a cylinder, an electric cylinder, etc. The second abutting plate 503 is located between the second blocking portion 5011 and the semi-circular bearing 1, and a through groove for part of the second elastic measuring member 501 to extend out is formed at the bottom of the second abutting plate 503. The through groove is of a U-shaped structure, so as to increase the acting area with the second blocking portion 5011.

[0051] In some examples, as Figure 4 and Figure 5 shown, the first measuring head 4012 of the first elastic measuring member 401 and the second measuring head 5012 of the second elastic measuring member 501 are both of narrow head structures.

[0052] In some examples, as Figure 1 and Figure 2 shown, the axial positioning assembly 2 includes an axial positioning seat 201, a pushing block 202, and an axial pressing mechanism 203 for driving the pushing block 202 to reciprocate axially along the semi-circular bearing 1 to clamp the semi-circular bearing 1 between the axial positioning seat 201 and the pushing block 202. The axial positioning seat 201 is fixedly arranged and extends two arms for abutting against the semi-circular bearing 1 towards the direction of the semi-circular bearing 1. The pushing block 202 is movably arranged.

[0053] In some examples, the radial pressing mechanism 302 is a single-acting cylinder. The driving force of the cylinder will be offset by a part of the spring, with a small acting force and a short stroke, and will not cause deviation to the measurement process. The second elastic measuring member 501 will generate a thrust of 4N - 5N on the bearing during the measurement process, making the bearing have an upward movement trend. The single-acting cylinder can block the upward movement trend of the bearing, and the blocking force is small, and it only has a straightening effect and will not cause the bearing to deform.

[0054] In some examples, such as Figure 11 shown, each distortion measurement end 102 is convexly formed with a lug 103. The radial positioning seat 301 has a card slot 3011 for the lug 103 to be snapped into and a through slot 3012 for the second elastic measuring member 501 to pass through. During measurement, first, the lug 103 is snapped into the card slot 3011 to perform an initial positioning of the bearing, and then it is positioned by the axial positioning assembly 2 and the radial positioning assembly 3. Then, the second elastic measuring member 501 passes through the through slot 3012 to contact the end face 1022 of the distortion measurement end 102 for measurement.

[0055] In some examples, such as Figure 1 and Figure 2 shown, the radial positioning assembly 3 further includes a third linear reciprocating drive mechanism 304 for driving the radial pressure applying mechanism 302 to reciprocate axially along the semi-circular bearing 1. The third linear reciprocating drive mechanism 304 can be but is not limited to an air cylinder or an electric cylinder, etc., and is used to adjust the axial position of the radial pressure applying mechanism 302.

[0056] In some examples, such as Figure 9 and Figure 10 shown, multiple second elastic measuring members 501 in the two second measuring assemblies 5 are released by the same second linear reciprocating drive mechanism 502, so as to achieve synchronous release of the multiple second elastic measuring members 501, thereby improving the detection accuracy.

[0057] In some examples, such as Figure 3 shown, a pressing head 303 is installed at the output end of the radial pressure applying mechanism 302. The pressing head 303 is made of plastic and will not cause damage to the semi-circular bearing 1 when it contacts the semi-circular bearing 1.

[0058] Working principle:

[0059] During measurement, first, the semi-circular bearing 1 to be measured is placed on the radial positioning seat 301, and the lug 103 is snapped into the card slot 3011 to perform an initial positioning of the bearing. Then, the axial pressure applying mechanism 203 drives the pushing block 202 to move towards the bearing and clamps the bearing between it and the axial positioning seat 201 for axial positioning. The radial pressure applying mechanism 302 presses down to clamp the semi-circular bearing 1 between it and the radial positioning seat 301. Then, the second linear reciprocating drive mechanism 502 moves upward, the second abutting plate 503 releases the restriction on the second blocking portion 5011, and the second elastic measuring member 501 is released. It contacts the end face 1022 of the distortion measurement end 102 and measures the heights of the four top corners. Then, the first linear reciprocating drive mechanism 402 moves towards the bearing direction, the first abutting plate 403 releases the restriction on the first blocking portion 4011, and the first elastic measuring member 401 is released. It contacts the side face 1021 of the distortion measurement end 102 and measures its position.

[0060] Based on the above-mentioned ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A semi-circular bearing twist measurement device, the semi-circular bearing (1) includes a bearing body (101), both ends of the bearing body (101) along its circumference are twist measurement ends (102) for the twist measurement device to measure, and each twist measurement end (102) has an end face (1022) and a side face (1021), characterized in that: The distortion measuring device includes: an axial positioning assembly (2) for axially positioning the semi-circular bearing (1); a radial positioning assembly (3) including a radial positioning seat (301) for supporting the semi-circular bearing (1) and a radial pressing mechanism (302) for pressing the semi-circular bearing (1) to confine it on the radial positioning seat (301); a first measuring assembly (4), corresponding to the number of the distortion measuring ends (102), and each group of the first measuring assemblies (4) includes at least two first elastic measuring elements (401) axially arranged along the side surface (1021) and a first linear reciprocating driving mechanism (402) for releasing the first elastic measuring elements (401) to make them flexibly contact with the side surface (1021); and a second measuring assembly (5), corresponding to the number of the distortion measuring ends (102), and each group of the second measuring assemblies (5) includes at least two second elastic measuring elements (501) axially arranged along the end surface (1022) and a second linear reciprocating driving mechanism (502) for releasing the second elastic measuring elements (501) to make them flexibly contact with the end surface (1022).

2. The semi-circular bearing distortion measuring device according to claim 1, wherein: Each group of the first measuring assemblies (4) includes two first elastic measuring elements (401) correspondingly arranged at both ends of the side surface (1021), and the first elastic measuring elements (401) in the two groups of the first measuring assemblies (4) are in one-to-one correspondence and are arranged in a rectangular distribution; Each group of the second measuring assemblies (5) includes two second elastic measuring elements (501) correspondingly arranged at both ends of the end surface (1022), and the second elastic measuring elements (501) in the two groups of the second measuring assemblies (5) are in one-to-one correspondence and are arranged in a rectangular distribution.

3. The semi-circular bearing distortion measuring device according to claim 1, characterized in that: The first elastic measuring element (401) is radially protruded to form a first blocking portion (4011), and a first abutting plate (403) for abutting against the first blocking portion (4011) to contract the first elastic measuring element (401) is fixed to the output end of the first linear reciprocating driving mechanism (402); The second elastic measuring element (501) is radially protruded to form a second blocking portion (5011), and a second abutting plate (503) for abutting against the second blocking portion (5011) to contract the second elastic measuring element (501) is fixed to the output end of the second linear reciprocating driving mechanism (502).

4. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: The first measuring head (4012) of the first elastic measuring element (401) and the second measuring head (5012) of the second elastic measuring element (501) are both of narrow head structures.

5. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: The axial positioning assembly (2) includes an axial positioning seat (201), a pushing block (202), and an axial pressing mechanism (203) for driving the pushing block (202) to reciprocate axially along the semi-circular bearing (1) to clamp the semi-circular bearing (1) between the axial positioning seat (201) and the pushing block (202).

6. The semi-circular bearing distortion measuring device according to claim 1, characterized in that: The radial pressing mechanism (302) is a single-acting cylinder.

7. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: Each distortion measurement end (102) is convexly formed with a lug (103), and the radial positioning seat (301) has a clamping groove (3011) for the lug (103) to be snapped into and a through groove (3012) for the second elastic measurement member (501) to pass through.

8. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: The radial positioning assembly (3) further includes a third linear reciprocating drive mechanism (304) for driving the radial pressure application mechanism (302) to reciprocate axially along the semi-circular bearing (1).

9. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: A plurality of second elastic measurement members (501) in the two groups of second measurement assemblies (5) are released by the same second linear reciprocating drive mechanism (502).

10. A semi-circular bearing distortion measuring device according to claim 1, characterized in that: A pressure head (303) is installed at the output end of the radial pressure application mechanism (302), and the pressure head (303) is made of plastic.

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