Annular ring internal positioning device

Abstract

The utility model belongs to the technical field of bearing machining, and discloses an annular ring interior positioning device which comprises a base and a positioning assembly, and the base is arranged on a frame body and can ascend and descend in the vertical direction; the positioning assembly comprises a rotating part, an upper turntable, a lower turntable and a plurality of sliding blocks, the rotating part is connected with the base, and the other end of the rotating part is connected with the upper turntable; a first sliding groove is formed in the upper rotating disc and is in sliding connection with the upper end face of the sliding block. A second sliding groove is formed in the lower rotating disc and is in sliding connection with the sliding block, and the horizontal projection of the first sliding groove coincides with the horizontal projection of the second sliding groove; the sliding block is provided with a clamping column. The rotating piece drives the upper rotating disc to rotate, so that the sliding block slides in the first sliding groove to be attached to the inner wall of the primarily-machined bearing ring, and rotation is stopped; through sliding and limiting cooperation of the multiple sliding blocks, the problems that when bearings of different sizes are produced and manufactured, the precision of the positioning columns is easily reduced, the service life is shortened, replacement is tedious, and the labor intensity is large due to replacement of the positioning columns are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing processing technical field, concretely relates to a ring -shaped circle internal positioning device. BACKGROUND

[0002] Bearing is the most widely used general part in rotary machinery, and is the easily damaged part in mechanical equipment, and is the important basic component causing the failure of equipment and device, and each component part of bearing needs to be inspected to ensure its qualification. Different tooling is used according to the different processes of bearing ring, and bearing ring is positioned through tooling.

[0003] In the prior art, for example, the Chinese invention patent with publication number CN105736587A discloses a large bearing ring positioning groove device, specifically discloses a fixing device and a groove device, the fixing device includes a fixed bottom plate, a fixed cover plate, an inner ring positioning column, an outer ring positioning ring, a groove guide groove, the groove device includes a first motor, a first rotating shaft, an electric telescopic cylinder, a second motor, a second rotating shaft, a groove blade, a positioning detection rod and a distance inductor. The present application can make the groove of the inner ring and the outer ring of the bearing together, and can also detect and position in the process of the groove, adjust the position and depth of the groove at any time, prevent the mismatching of the inner ring and the outer ring groove, and effectively guarantee the quality of bearing products.

[0004] In the use process of the above prior art, if bearings of multiple sizes need to be produced, the positioning column needs to be replaced according to different sizes, and frequent replacement can easily lead to reduced accuracy of the positioning column, reduced service life, and more cumbersome replacement and greater labor intensity. SUMMARY

[0005] Therefore, the ring-shaped circle internal positioning device is provided to solve the problem that in the prior art, multiple replacement of the positioning column can easily lead to reduced accuracy of the positioning column, reduced service life, more cumbersome replacement and greater labor intensity when bearings of multiple sizes are produced.

[0006] The technical scheme for solving the above technical problems is as follows:

[0007] A ring-shaped circle internal positioning device comprises:

[0008] The base is rotatably arranged on the frame body and can be lifted up and down along the vertical direction; the positioning assembly comprises a rotating member, an upper rotating disc, a lower rotating disc and a plurality of sliding blocks, one end of the rotating member is connected to the lower end surface of the base, and the other end of the rotating member is connected to the upper end surface of the upper rotating disc; the upper rotating disc is provided with a plurality of first sliding grooves, the first sliding grooves are slidably connected to the upper end surfaces of the sliding blocks and are limited in cooperation, the lower rotating disc is provided with a plurality of second sliding grooves, the second sliding grooves are slidably connected to the sliding blocks and are limited in cooperation, the horizontal projection of the first sliding groove coincides with the horizontal projection of the second sliding groove; one end of the lower end surface of the sliding block is provided with a clamping column, and the clamping column is used for positioning and clamping the inner ring of the bearing.

[0009] Preferably, the rotating member comprises an annular clamping groove and an annular clamping rod, the annular clamping groove is sleeved on the base, the base can be lifted up and down in the annular clamping groove, and the annular clamping groove is connected with the frame body; the annular clamping rod is sleeved on the base, the annular clamping rod drives the base to rotate through the motor, and the annular clamping rod is limited in cooperation with the annular clamping groove.

[0010] Preferably, a plurality of u-shaped grooves are arranged on the annular clamping groove, and limiting rods are symmetrically arranged at two ends of the annular clamping rod, the limiting rods can slide up and down along the u-shaped grooves.

[0011] Preferably, the base comprises a telescopic air cylinder and a limiting piece, the fixed end of the telescopic air cylinder is connected to the frame body, the telescopic end of the telescopic air cylinder is connected to the upper rotating disc, and the limiting piece is detachably arranged at the telescopic end of the telescopic air cylinder and is used for limiting the telescopic length of the telescopic air cylinder.

[0012] Preferably, the limiting piece comprises a bolt and two positioning holes arranged at the telescopic end of the telescopic air cylinder, the two positioning holes are arranged in sequence along the telescopic direction of the telescopic air cylinder, and the bolt is detachably connected in the positioning holes.

[0013] Preferably, the upper rotating disc and the lower rotating disc are both circular rings with the same structure and the same size.

[0014] Preferably, the first sliding grooves and the second sliding grooves are equidistant and circumferentially distributed on the upper rotating disc and the lower rotating disc.

[0015] Preferably, the sliding block is a rhombic block, the sliding block is symmetrically provided with sliding columns at the end opposite to the clamping column, the symmetrically arranged sliding columns respectively extend into the first sliding grooves and the second sliding grooves, and the symmetrically arranged sliding columns can slide along the extension directions of the first sliding grooves and the second sliding grooves.

[0016] The technical scheme adopted in the application can achieve the following beneficial effects:

[0017] The rotating component drives the upper and lower turntables to rotate, causing several sliders to slide from the first position to the second position in the first and second slide grooves until they fit against the inner wall of the pre-machined bearing ring, at which point the rotation stops. Conversely, the bearing ring is removed by rotating in the opposite direction. The sliding and limiting cooperation of several sliders solves the problem that when manufacturing bearings of different sizes, multiple replacements of the positioning pins can easily lead to reduced positioning pin accuracy, reduced service life, and cumbersome replacements, resulting in high labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall positioning device inside the annular ring of this application.

[0019] Figure 2 This is a partial schematic diagram of the positioning device inside the annular ring of this application.

[0020] Figure 3 This is a partial top view of the positioning component of the positioning device inside the annular ring of this application.

[0021] Figure 4 This is a partial schematic diagram of the positioning components of the positioning device inside the annular ring of this application.

[0022] Figure 5 This is a schematic diagram of the annular groove of the positioning device inside the annular ring of this application.

[0023] In the figure: frame 10, base 110, telescopic cylinder 111, limit component 112, positioning component 120, annular groove 1211, annular rod 1212, upper turntable 122, lower turntable 123, slider 124, and locking post 125. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0025] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1 to 5 This application provides an internal positioning device for an annular ring, comprising: a base 110 and a positioning assembly 120. The base 110 is rotatably mounted on a frame 10 and can move up and down vertically. The positioning assembly 120 includes a rotating component, an upper turntable 122, a lower turntable 123, and a plurality of sliders 124. One end of the rotating component is connected to the lower end face of the base 110, and the other end of the rotating component is connected to the upper end face of the upper turntable 122. The upper turntable 122 is provided with a plurality of first sliding grooves, which are slidably connected to and limited in fit with the upper end face of the sliders 124. The lower turntable 123 is provided with a plurality of second sliding grooves, which are slidably connected to and limited in fit with the sliders 124. The horizontal projection of the first sliding grooves coincides with the horizontal projection of the second sliding grooves. A locking post 125 is provided at one end of the lower end face of the slider 124, which is used to position and lock the inner ring of the bearing.

[0028] Specifically, the base 110 employs a cylinder and telescopic rod capable of vertical extension and retraction. The frame 10 is a support made of steel plates and steel pipes. The base 110 is installed inside the frame 10, with one end connected to the top of the frame 10. It can be rotated by a motor. The positioning components 120 are all located on the lower end face of the base 110 (the upper end face of the base 110 is the end connected to the frame 10; the lower end face of the base 110 is the end of the base 110 closest to the ground). Both the upper turntable 122 and the lower turntable 123 are discs, and a through hole is provided at the center of the disc. The number of the first and second sliding grooves is the same (the first and second sliding grooves rotate in the same direction). The upper turntable 122 and the lower turntable 123 are connected by a plate to form a whole. The number of sliders 124 is the same as the number of the first slide groove. The sliders 124 are slidably connected in the first slide groove and the second slide groove by bolts, screws, etc. (one end of the slider 124 can slide from the first position to the second position as it rotates). Several sliders 124 are set between the upper turntable 122 and the lower turntable 123. The side walls of two adjacent sliders 124 are mutually limited and cooperate. The locking post 125 is set at the end of the slider 124 near the central through hole of the upper turntable 122. The locking post 125 extends into the lower turntable 123.

[0029] A working platform is provided below the positioning component 120. After the bearing inner ring is initially machined, it is placed on the working platform and adjusted to be below the lower turntable 123.

[0030] Further, the pre-machined bearing inner ring is placed on the work platform and located below the lower turntable 123. The base 110 extends downward in the vertical direction, causing the positioning component 120 to move downward, and the locking pins 125 extend into the pre-machined bearing inner ring. The rotating component drives the upper turntable 122 to rotate, thereby causing the slider 124 to slide from the first position to the second position. When all the locking pins 125 on the slider 124 are in contact with the inner wall of the pre-machined bearing inner ring, the rotating component stops rotating, and several locking pins 125 fix the pre-machined bearing inner ring for processing. After processing is completed, the rotating component drives the upper turntable 122 to rotate in the opposite direction, causing the slider 124 to slide in the opposite direction to the first position, and then the bearing inner ring is removed.

[0031] The technical solution of the annular internal positioning device adopted in this application can achieve the following beneficial effects:

[0032] The rotating component drives the upper turntable 122 and the lower turntable 123 to rotate, causing several sliders 124 to slide from the first position to the second position in the first and second slide grooves until they fit against the inner wall of the pre-machined bearing inner ring, and then stop rotating. Conversely, the bearing inner ring is removed by rotating in the opposite direction. The sliding and limiting cooperation of several sliders 124 solves the problem that when bearings of different sizes are manufactured, multiple replacements of the positioning pins can easily lead to a decrease in the accuracy of the positioning pins, a reduction in their service life, and a relatively cumbersome and labor-intensive replacement process.

[0033] In the above embodiment, the rotating component includes an annular groove 1211 and an annular rod 1212. The annular groove 1211 is sleeved on the base 110, and the base 110 can move up and down within the annular groove 1211. The annular groove 1211 is connected to the frame 10. The annular rod 1212 is sleeved on the base 110, and the annular rod 1212 drives the base 110 to rotate via a motor. The annular rod 1212 is in a limiting engagement with the annular groove 1211.

[0034] Furthermore, the annular groove 1211 is provided with a plurality of U-shaped grooves, and the two ends of the annular rod 1212 are symmetrically provided with limiting rods, which can slide up and down along the U-shaped grooves.

[0035] The inner diameter of the annular groove 1211 is not less than the diameter of the base 110, and its outer side is fixedly connected to the frame 10. The length of the annular groove 1211 is not less than the lifting stroke of the base 110. Several U-shaped grooves are provided in the annular groove 1211, and the distance between two adjacent U-shaped grooves is set according to the standard of the bearing inner ring. Each rotation of the U-shaped groove corresponds to a bearing inner ring of a certain size. The inner diameter of the annular locking rod 1212 is the same as the diameter of the base 110, and it can be connected to the base 110 by welding or bolts. The limiting rod is provided with at least one... Two bases can be set, and an even number can be set according to stability; after the base 110 rotates (after the retaining pins 125 are in contact with the initially machined bearing inner ring), the base 110 descends again and the limiting rod slides into the U-shaped groove in the vertical direction for limiting, which solves the problem that the rotating part rotates during the machining of the bearing inner ring, causing the bearing inner ring to detach. Moreover, when machining bearing inner rings of the same size, the rotating part only needs to rotate once, and subsequently only the base 110 needs to be raised and lowered. This solves the problem that the distance of the retaining pins 125 needs to be frequently adjusted when the rotating shaft rotates during machining.

[0036] Based on the above scheme, the base 110 includes a telescopic cylinder 111 and a limiting member 112. The fixed end of the telescopic cylinder 111 is connected to the frame 10, and the telescopic end of the telescopic cylinder 111 is connected to the upper turntable 122. The limiting member 112 is detachably disposed at the telescopic end of the telescopic cylinder 111 and is used to limit the telescopic length of the telescopic cylinder 111.

[0037] The base 110 adopts the structure of a telescopic cylinder 111. The telescopic cylinder 111 includes a telescopic rod and a cylinder. The cylinder is hung upside down on the top of the frame 10 and fixed. A limiting member 112 is detachably installed on the telescopic rod. When the rotating part needs to drive the base 110 to rotate, the limiting member 112 is at the end away from the cylinder. After the base 110 has rotated, the limiting member 112 moves to the end closer to the cylinder. By adjusting the distance of the limiting member 112, the problem of the inner ring of the bearing of the same size not being disengaged from the annular retaining rod 1212 due to the telescopic cylinder 111 moving too far during processing is solved, thus preventing the rotating part from rotating.

[0038] In the above scheme, the limiting member 112 includes a pin and two positioning holes disposed at the telescopic end of the telescopic cylinder 111. The two positioning holes are arranged in sequence along the telescopic direction of the telescopic cylinder 111, and the pin is detachably connected to the positioning holes.

[0039] The telescopic cylinder 111 includes a telescopic rod and a cylinder. Two positioning holes are provided at the end of the telescopic rod near the cylinder. The length of the pin is greater than the diameter of the cylinder. When the rotating part needs to rotate, the pin is inserted into the positioning hole near the ground. At this time, the telescopic rod rises, causing the annular locking rod 1212 to disengage from the annular locking groove 1211 and be driven to rotate by the rotating part. Conversely, when the rotating part does not need to rotate, the pin is inserted into the positioning hole away from the ground. The extension and retraction stroke of the telescopic rod is shortened, and the annular locking rod 1212 is always in the annular locking groove 1211, thereby avoiding the problem of the inner ring of the bearing disengaging due to the rotation of the rotating part.

[0040] In a preferred embodiment of this application, the upper turntable 122 and the lower turntable 123 are both circular rings with the same structure and size. Furthermore, the first groove and the second groove are equidistant and circumferentially distributed on the upper turntable 122 and the lower turntable 123.

[0041] Specifically, the diameter of the through hole at the center of the upper turntable 122 and the lower turntable 123 is not less than the diameter of the inner ring of the minimum bearing. The angle between the first slide groove and the second slide groove is adjusted according to the width of the ring. The length of the first slide groove and the second slide groove is adjusted according to the circumference of the upper turntable 122 and the lower turntable 123. The rotation of the upper turntable 122 drives the lower turntable 123 to rotate together. When rotating, the first slide groove and the second slide groove rotate, causing the slider 124 to slide accordingly, thereby forming a circular motion.

[0042] Based on the above scheme, the slider 124 is a rhombus-shaped block, and the slider 124 and the locking post 125 are symmetrically provided with sliding posts at their opposite ends. The symmetrically provided sliding posts extend into the first sliding groove and the second sliding groove respectively, and the symmetrically provided sliding posts can slide along the extension direction of the first sliding groove and the second sliding groove.

[0043] Specifically, the number of sliders 124 is set according to the number of the first slide groove and the second slide groove, and the angle of the sliders 124 (rhomboid blocks) is adjusted so that the sum of the angles of several sliders 124 near the center of the upper turntable 122 and the lower turntable 123 is 360°, and the side walls of adjacent sliders 124 are in contact with each other and slide in cooperation. Two sliding pillars with the same width as the first slide groove and the second slide groove are set at the other end, and the sliding pillars are symmetrically arranged and extend into the first slide groove and the second slide groove respectively. The sliding pillars are in a limiting cooperation with the first slide groove and the second slide groove.

[0044] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An annular ring internal positioning device, characterized by, The utility model relates to a kind of rotating base and positioning assembly, including: Base, the base is rotationally arranged on frame body, and can be lifted up and down along vertical direction; Positioning assembly, the positioning assembly includes rotating piece, upper turntable, lower turntable and several sliders, one end of the rotating piece is connected with the lower end surface of the base, the other end of the rotating piece is connected with the upper end surface of the upper turntable;The upper turntable is provided with several first sliding grooves, the first sliding groove is slidably connected with the upper end surface of the slider and is limited to cooperate;The lower turntable is provided with several second sliding grooves, the second sliding groove is slidably connected with the slider and is limited to cooperate, the horizontal projection of the first sliding groove coincides with the horizontal projection of the second sliding groove;One end of the lower end surface of the slider is provided with clamping column, and the clamping column is used to position and clamping inner ring of bearing.

2. The ring groove inner positioning device of claim 1, wherein, The rotating piece includes annular clamping slot and annular clamping rod, the annular clamping slot is sleeved on the base, the base can be lifted up and down in the annular clamping slot, and the annular clamping slot is connected with frame body;The annular clamping rod is sleeved on the base, and the annular clamping rod drives the base to rotate by motor, and the annular clamping rod is limited to cooperate with the annular clamping slot.

3. The ring groove inner positioning device of claim 2 wherein, Several u-shaped grooves are provided on the annular clamping slot, and limiting rods are symmetrically provided at both ends of the annular clamping rod, which can slide up and down along the u-shaped grooves.

4. The ring groove inner positioning device of claim 1 wherein, The base includes telescopic air cylinder and limiting piece, the fixed end of the telescopic air cylinder is connected with the frame body, the telescopic end of the telescopic air cylinder is connected with the upper turntable, and the limiting piece is detachably arranged on the telescopic end of the telescopic air cylinder to limit the telescopic length of the telescopic air cylinder.

5. The ring groove inner positioning device of claim 4, wherein, The limiting piece includes a latch and two positioning holes arranged on the telescopic end of the telescopic air cylinder, the two positioning holes are arranged in sequence along the telescopic direction of the telescopic air cylinder, and the latch is detachably connected in the positioning hole.

6. The ring groove internal positioning device of claim 1 wherein, The upper turntable and the lower turntable are both circular rings with the same structure and size.

7. The ring groove inner positioning device of claim 6 wherein, The first sliding groove and the second sliding groove are equidistant and circumferentially distributed on the upper turntable and the lower turntable.

8. The ring groove internal positioning device of claim 1 wherein, The slider is a rhombic block, and the slider is symmetrically provided with a slide column at one end opposite to the clamping column, the symmetrically arranged slide columns respectively extend into the first sliding groove and the second sliding groove, and the symmetrically arranged slide columns can slide along the extension direction of the first sliding groove and the second sliding groove.

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