Miniature deep groove ball bearing riveting inner diameter detection device

Abstract

The utility model provides a miniature deep groove ball bearing riveting inner diameter detection device, including bottom die, the bottom die is opened with center hole, the inner diameter detection device includes: first cylinder, the outer periphery of first cylinder is with center hole adaptation, second cylinder, the bottom of second cylinder and first cylinder is connected, second cylinder is arranged coaxially with first cylinder, the outer diameter of second cylinder is according to preset size processing, the utility model relates to bearing inner diameter detection technical field, before riveting, insert miniature deep groove ball bearing into the outer periphery of second cylinder, because the outer diameter of second cylinder is according to standard size processing, if the inner diameter of miniature deep groove ball bearing passes through second cylinder, it is already processed, can continue riveting, if not pass through second cylinder, it is that miniature deep groove ball bearing is missed grinding, return grinding processing, prevent the occurrence of the event of the inner diameter of miniature deep groove ball bearing missed grinding.

Description

Technical Field

[0001] This utility model relates to the field of bearing inner diameter detection technology, and in particular to a device for detecting the riveted inner diameter of miniature deep groove ball bearings. Background Technology

[0002] Miniature deep groove ball bearings are mainly made of carbon steel, bearing steel, stainless steel, plastic, ceramics, etc., and their inner diameter can be as small as 0.6mm, with 1mm being the most common.

[0003] During the production of miniature deep groove ball bearings, external sealing rings need to be riveted into the grooves on both sides of the miniature deep groove ball bearing to seal the balls inside. Due to the small inner diameter of the miniature deep groove ball bearing, the visual inspection is too low, and even with a 100% inspection level, it is impossible to ensure that the inner diameter of the miniature deep groove ball bearing does not leak. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the inner diameter of a miniature deep groove ball bearing riveting. This device aims to solve the problem that the inner diameter of a miniature deep groove ball bearing is too small, which can easily lead to missed grinding and inspection by workers during large-scale operations.

[0005] This utility model provides a device for detecting the inner diameter of a miniature deep groove ball bearing riveting, including a bottom mold with a central hole. The inner diameter detection device includes: a first column whose outer periphery is adapted to the central hole; and a second column whose bottom end is connected to the first column. The second column and the first column are coaxially arranged, and the outer diameter of the second column is machined according to a preset size. The miniature deep groove ball bearing is inserted into the outer periphery of the second column for size detection.

[0006] Preferably, the outer periphery of the second column is provided with an adjustment component, which is used to adjust the working height of the second column;

[0007] The adjustment component includes:

[0008] An annular support platform is located at the top of the bottom mold, and the annular support platform and the bottom mold are stacked perpendicularly along a common axis;

[0009] The outer wall of the annular support platform is provided with four sets of threaded holes evenly distributed along the circumference, and each set of threaded holes includes three threaded holes that are equidistantly distributed along the axial direction.

[0010] The mounting plate is located in the inner cavity of the annular support platform, the inner wall of the mounting plate is connected to the second column, and the outer periphery of the mounting plate is provided with a threaded sleeve.

[0011] The threaded sleeve is connected to the threaded hole of the threaded hole group by a locating pin.

[0012] Preferably, the top of the bottom mold is provided with a riveting assembly;

[0013] The riveting assembly includes:

[0014] A top mold, located directly above the bottom mold, is connected to the bottom mold via a telescopic component;

[0015] Multiple abutment rods are arranged in a ring around the top mold, and all of the multiple abutment rods are threadedly connected to the top mold.

[0016] Preferably, the bottom ends of the plurality of abutment rods are provided with buffer pads.

[0017] Preferably, the cushioning pad is made of rubber material.

[0018] Preferably, the telescopic member includes:

[0019] A guide sleeve is connected to the top mold, and a damping ring is provided at the bottom end of the guide sleeve;

[0020] A guide rod is located in the through hole of the guide sleeve, and a connecting rod is provided at the bottom end of the guide rod, the bottom end of the connecting rod being connected to the bottom mold;

[0021] An elastic element is sleeved on the outer periphery of the guide rod, one end of the elastic element abuts against the damping ring, and the other end of the elastic element abuts against the connecting rod.

[0022] Preferably, the elastic element is a compression spring.

[0023] Preferably, a stop is provided at the top of the guide rod.

[0024] This utility model provides a device for detecting the riveted inner diameter of a miniature deep groove ball bearing:

[0025] By using a combination of a bottom mold, a center hole, a first column, and a second column, the first column is inserted into the center hole of the bottom mold during the riveting process of the miniature deep groove ball bearing. Then, the second column at the top of the first column is vertically set on the top of the bottom mold. Before riveting, the miniature deep groove ball bearing is inserted into the outer circumference of the second column. Since the outer diameter of the second column is machined according to standard dimensions, if the inner diameter of the miniature deep groove ball bearing passes through the second column, it means that it has been machined and riveting can continue. If it does not pass through the second column, it means that the miniature deep groove ball bearing has been missed during grinding and needs to be returned for grinding to prevent the occurrence of missed grinding of the inner diameter of the miniature deep groove ball bearing. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a structural schematic diagram of the bottom mold, first column, second column, mounting plate, and annular support platform of this utility model;

[0029] Figure 3 This is a schematic diagram of the top mold, telescopic component, and abutment rod in this utility model;

[0030] Figure 4 This is a cross-sectional view of the top mold in this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the guide sleeve, damping ring, guide rod, connecting rod, and elastic element in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1-Bottom mold, 11-Center hole, 2-First column, 21-Second column, 3-Adjusting assembly, 31-Mounting plate, 311-Threaded sleeve, 32-Positioning pin, 33-Annular support platform, 4-Threaded hole assembly, 5-Riveting assembly, 51-Top mold, 52-Telescopic component, 521-Guide sleeve, 521a-Damping ring, 522-Guide rod, 522a-Stop block, 523-Connecting rod, 524-Elastic component, 53-Abutting rod, 531-Buffer pad, 6-Miniature deep groove ball bearing. Detailed Implementation

[0034] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this embodiment, as Figure 1 and Figure 2 As shown, the miniature deep groove ball bearing riveting inner diameter detection device includes a bottom mold 1 with a central hole 11. The inner diameter detection device includes: a first column 2, the outer periphery of which is adapted to the central hole 11; a second column 21, the bottom end of which is connected to the first column 2, the second column 21 and the first column 2 are coaxially arranged, the outer diameter of the second column 21 is processed according to a preset size, and the miniature deep groove ball bearing 6 is inserted into the outer periphery of the second column 21 for size detection.

[0038] Therefore, during the riveting process of the miniature deep groove ball bearing 6, the first column 2 is first inserted into the center hole 11 of the bottom mold 1, and then the second column 21 at the top of the first column 2 is vertically set on the top of the bottom mold 1. Before riveting, the miniature deep groove ball bearing 6 is inserted into the outer circumference of the second column 21. Since the outer diameter of the second column 21 is processed according to the standard size, if the inner diameter of the miniature deep groove ball bearing 6 passes through the second column 21, it means that it has been processed and riveting can continue. If it does not pass through the second column 21, it means that the miniature deep groove ball bearing 6 has been missed in grinding and is returned for grinding processing to prevent the occurrence of the miniature deep groove ball bearing 6 having missed grinding in the inner diameter.

[0039] Specifically, the length of the first column 2 is matched with the depth of the central hole 11, the outer diameter of the first column 2 is completely matched with the inner diameter of the central hole 11, the first column 2 is inserted into the central hole 11 to fix the position of the second column 21, the second column 21 and the first column 2 have a stepped shaft structure, and the outer diameter of the second column 21 is matched with the inner diameter of the miniature deep groove ball bearing 6 to be tested.

[0040] In some embodiments, such as Figure 2 As shown, an adjustment component 3 is arranged on the outer periphery of the second column 21, and the adjustment component 3 is used to adjust the working height of the second column 21;

[0041] The adjusting assembly 3 includes: an annular support platform 33, which is located at the top of the bottom mold 1 and is stacked vertically with the bottom mold 1 along a common axis; the outer wall of the annular support platform 33 is provided with four sets of threaded holes 4 evenly distributed along the circumference, each set of threaded holes 4 including three threaded holes evenly distributed along the axial direction; and a mounting plate 31, which is located in the inner cavity of the annular support platform 33, with its inner wall connected to the second column 21, and a threaded sleeve 311 disposed on the outer periphery of the mounting plate 31; the threaded sleeve 311 is connected to the threaded holes of the threaded hole set 4 through a positioning pin 32.

[0042] Specifically, the annular support platform 33 is used to support the edge of the miniature deep groove ball bearing 6. The four sets of threaded holes 4 are evenly distributed based on the annular support platform 33. The mounting plate 31 is set on the outer periphery of the second column 21 and can be embedded into the inner cavity of the annular support platform 33 along with the mounting plate 31. The threaded sleeve 311 and the positioning pin 32 are adapted to each other. The outer wall of the positioning pin 32 is machined with threads. Changing the depth of the mounting plate 31 in the annular support platform 33 changes the working height of the second column 21.

[0043] In some embodiments, such as Figure 3 As shown, a riveting assembly 5 is disposed at the top of the bottom mold 1;

[0044] The riveting assembly 5 includes: a top mold 51, which is located directly above the bottom mold 1 and is connected to the bottom mold 1 via a telescopic member 52; and multiple abutment rods 53, which are arranged in a ring around the top mold 51 and are threadedly connected to the top mold 51.

[0045] Specifically, there are eight abutment rods 53. The number of abutment rods 53 used can be selected according to the usage requirements. The top mold 51 drives the abutment rods 53 to move so as to rivet the sealing ring of the miniature deep groove ball bearing 6 into the groove of the miniature deep groove ball bearing 6 to constrain the balls of the miniature deep groove ball bearing 6.

[0046] In some embodiments, such as Figure 4 As shown, the bottom ends of the multiple abutment rods 53 are equipped with buffer pads 531.

[0047] Specifically, the design of the buffer pad 531 prevents indentations from appearing on the seal ring during the riveting process of the miniature deep groove ball bearing 6.

[0048] In some embodiments, such as Figure 4 As shown, the cushioning pad 531 is made of rubber material;

[0049] Specifically, the cushioning pad 531 can also be made of other malleable materials.

[0050] In some embodiments, such as Figure 5 As shown, the telescopic component 52 includes: a guide sleeve 521, which is connected to the top mold 51, and a damping ring 521a is disposed at the bottom end of the guide sleeve 521; a guide rod 522, which is located in the through hole of the guide sleeve 521, and a connecting rod 523 is disposed at the bottom end of the guide rod 522, and the bottom end of the connecting rod 523 is connected to the bottom mold 1; and an elastic component 524, which is sleeved on the outer periphery of the guide rod 522, with one end of the elastic component 524 abutting against the damping ring 521a and the other end of the elastic component 524 abutting against the connecting rod 523.

[0051] Specifically, there are two guide sleeves 521, which are symmetrically distributed based on the top mold 51. The damping ring 521a is used to buffer the rebound force of the elastic element 524. The guide rod 522 is connected to the bottom mold 1 through the connecting rod 523. The elastic element 524 is used to push the top mold 51 to reset.

[0052] In some embodiments, such as Figure 5 As shown, the elastic element 524 is a compression spring;

[0053] Specifically, the elastic element 524 adopts a compression spring design, which facilitates the reset of the top mold 51. The spring force coefficient of the compression spring is selected according to the usage requirements.

[0054] In some embodiments, such as Figure 5 As shown, a stop 522a is provided at the top of the guide rod 522.

[0055] Specifically, the stop 522a is designed to prevent the guide sleeve 521 from separating from the top of the guide rod 522.

[0056] The working principle of this application is illustrated below with a preferred embodiment:

[0057] During the riveting process of the miniature deep groove ball bearing 6, the first column 2 is first inserted into the center hole 11 of the bottom mold 1, and then the second column 21 at the top of the first column 2 is vertically set on the top of the bottom mold 1. Before riveting, the miniature deep groove ball bearing 6 is inserted into the outer circumference of the second column 21. Since the outer diameter of the second column 21 is processed according to the standard size, if the inner diameter of the miniature deep groove ball bearing 6 passes through the second column 21 and the bottom edge of the miniature deep groove ball bearing 6 matches the annular support 33, it means that the inner diameter of the miniature deep groove ball bearing 6 has been processed and riveting can continue. If it does not pass through the second column 21, it means that the miniature deep groove ball bearing 6 has been missed and should be returned for grinding.

[0058] After the inner diameter of the miniature deep groove ball bearing 6 is measured, the outer sealing ring is placed in the groove of the deep groove ball bearing 6. Under the action of external force, the top mold 51 is driven to move the guide sleeve 521 down along the guide rod 522. The damping ring 521a at the bottom of the guide sleeve 521 compresses the elastic element 524. The abutment rod 53 located in the top mold 51 rivets the outer sealing ring into the deep groove ball bearing 6 for riveting.

[0059] When testing the inner diameter of miniature deep groove ball bearings 6 at different depths, the second column 21 is pulled up to change the position of the mounting plate 31 in the annular support 33. The positioning pin 32 is then used to pass through the threaded hole of the corresponding threaded hole group 4 to connect with the threaded sleeve 311 on the mounting plate 31, thereby changing the working height of the second column 21.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for detecting the inner diameter of a miniature deep groove ball bearing riveting, comprising a bottom mold (1), wherein the bottom mold (1) has a central hole (11), characterized in that, The inner diameter detection device includes: The first column (2) has an outer periphery that is adapted to the central hole (11); The second column (21) is connected to the first column (2) at its bottom end. The second column (21) is coaxially arranged with the first column (2). The outer diameter of the second column (21) is machined according to a preset size. The miniature deep groove ball bearing (6) is inserted into the outer periphery of the second column (21) for size detection.

2. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 1, characterized in that, An adjustment component (3) is provided on the outer periphery of the second column (21), the adjustment component (3) being used to adjust the working height of the second column (21); The adjustment component (3) includes: An annular support platform (33) is located at the top of the bottom mold (1), and the annular support platform (33) and the bottom mold (1) are stacked perpendicularly along a common axis; The outer wall of the annular support platform (33) is provided with four sets of threaded holes (4) evenly distributed along the circumference, and the threaded hole set (4) includes three threaded holes evenly distributed along the axial direction. Mounting disc (31), the mounting disc (31) is located in the inner cavity of the annular support platform (33), the inner wall of the mounting disc (31) is connected to the second column (21), and the outer periphery of the mounting disc (31) is provided with a threaded sleeve (311); The threaded sleeve (311) is connected to the threaded hole of the threaded hole group (4) via a locating pin (32).

3. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 1, characterized in that, The bottom mold (1) is provided with a riveting assembly (5) at its top end; The riveting assembly (5) includes: The top mold (51) is located directly above the bottom mold (1), and the top mold (51) is connected to the bottom mold (1) through a telescopic member (52); Multiple abutment rods (53) are arranged in a ring around the top mold (51), and all the multiple abutment rods (53) are threadedly connected to the top mold (51).

4. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 3, characterized in that, Each of the plurality of abutment rods (53) is provided with a buffer pad (531) at its bottom end.

5. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 4, characterized in that, The cushioning pad (531) is made of rubber material.

6. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 3, characterized in that, The telescopic component (52) includes: A guide sleeve (521) is connected to the top mold (51), and a damping ring (521a) is provided at the bottom end of the guide sleeve (521). Guide rod (522), the guide rod (522) is located in the through hole of the guide sleeve (521), the bottom end of the guide rod (522) is provided with a connecting rod (523), and the bottom end of the connecting rod (523) is connected to the bottom mold (1); An elastic element (524) is sleeved on the outer periphery of the guide rod (522). One end of the elastic element (524) abuts against the damping ring (521a), and the other end of the elastic element (524) abuts against the connecting rod (523).

7. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 6, characterized in that, The elastic element (524) is a compression spring.

8. The miniature deep groove ball bearing riveting inner diameter detection device according to claim 6, characterized in that, The top of the guide rod (522) is provided with a stop (522a).

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