Coaxiality detection device for sliding bearing production

Abstract

The invention relates to the technical field of coaxiality detection, in particular to a coaxiality detection device for sliding bearing production, which comprises a carrying square table, a supporting table is fixed on the outer wall of the bottom of the carrying square table through screws, and the bottom of the supporting table is fixed on the upper surface of a bottom plate; a side supporting table is further fixed to the top of the bottom plate, two connecting rods are fixed between the side supporting table and the supporting table, a detector is slidably installed on one connecting rod, a shaft pressing device is slidably installed on the outer wall of one side of the carrying square table, and a carrying frame is fixedly installed at the top of the supporting table; through simultaneous meshing of the movable teeth, the auxiliary teeth and the driven teeth, when the height of the supporting block is increased to clamp the sliding bearing bushes, relative rotation when the hand wheel is rotated to drive the sliding bearing double bushes to be sleeved can be achieved, and the bearing bush coaxiality condition of the sliding bearing in actual use can be simulated; and the workpiece precision after the sliding bearing is produced can be predicted conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of coaxiality detection, in particular to a coaxiality detection device for sliding bearing production. Background Art

[0002] Bearing coaxiality refers to the vertical deviation between the bearing's mounting plane and the axis. The quality of bearing coaxiality is related to the working performance of the entire bearing system, especially under high-speed rotation and heavy-load conditions. When the existing coaxiality tester detects the coaxiality of the bearing, it is difficult to make its axis centerline position align with the parallel reference position when the bearing is normally placed initially. The initial axis centerline itself is at an angle relative to the reference line position. Especially for the rotation measurement of the bearing shell of the sliding bearing, in the process of using the test table to measure the radial offset or runout of the bearing, the initial fixation of the bearing cannot be measured, and the placement error before measurement is difficult to eliminate. Moreover, in the test of double-shell or multi-shell bearings, the offset of each shell and the difference in the gap between them have a certain influence on the coaxiality measurement, and the offset of the sliding bearing during the activity process cannot be accurately predicted. For this reason, the present application proposes a coaxiality detection device for sliding bearing production to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a coaxiality detection device for sliding bearing production to solve the problems raised in the above background technology.

[0004] The technical solution of the present invention is: a coaxiality detection device for sliding bearing production, comprising a square carrier, a support platform is fixed to the outer wall of the bottom of the square carrier by screws, and the bottom of the support platform is fixed to the upper surface of the bottom plate; a side support platform is also fixed to the top of the bottom plate, two connecting rods are fixed between the side support platform and the support platform, one of the connecting rods is slidably mounted with a detector, a pressure device is slidably mounted on the outer wall of one side of the square carrier, a carrier is fixedly mounted on the top of the support platform, a movable column is movably inserted on the top of the carrier, a spring is provided between the inner wall of the carrier and the bottom outer wall of the movable column, and the top of the movable column A support block is integrally formed, a support shaft is fixed to the outer wall of one side of the support block, an internal pressure device is sleeved on the outer wall of the support shaft, a central shaft is inserted into the inner wall of the support shaft, a passive tooth is fixed to one end of the central shaft passing through the support block, an internal pressure column is fixed to the other end of the central shaft, a main tooth and two transmission teeth are connected for internal rotation of the loading platform, each transmission tooth is respectively inserted with a transmission roller for supporting the bearing to be tested, the two transmission teeth are respectively meshed with the main tooth, a main shaft is fixedly inserted in the center of the main tooth, and the main shaft passes through the loading platform and extends to the outer wall of one side to be fixedly connected with a hand wheel, and a fixing ring is fixed to the outer wall of one side of the loading platform.

[0005] Preferably, the main shaft passes through a fixed ring and is fixedly sleeved with a secondary tooth at one end, and a connecting block is movably sleeved on the outer wall of the fixed ring. A tension spring is provided between an outer wall on one side of the connecting block and an outer wall on one side of the carrier, and an outer wall on a side of the connecting block away from the loading platform is rotatably connected with a movable tooth, and the auxiliary tooth and the passive tooth are both engaged with the movable tooth.

[0006] Preferably, an arc-shaped extension plate and an inner support ring are integrally formed on the side of the internal pressure device away from the support block, and sliding grooves are opened on both sides of the arc-shaped extension plate, and a sliding arc bar is slidably inserted in each of the sliding grooves. Two springs are provided between the outer wall of one side of the sliding arc bar and the corresponding inner wall of the sliding groove, and a side pressure column is rotatably connected to the outer wall of one side of each sliding arc bar. An indicator block is also fixed on the top of the sliding arc bar, and the outer peripheral wall of the arc-shaped extension plate is engraved with two groups of scale lines in the axially symmetrical direction.

[0007] Preferably, the pressure reducer includes a movable platform, a pressure rod and a pressure roller, the movable platform is slidably connected to the outer wall of the loading platform on one side close to the detector, a movable space groove is opened inside the movable platform, the pressure rod is rotatably connected to the inside of the movable space groove, a clamping ring 1 is fixed to the outer wall of one side of the pressure rod, a clamping ring 2 is fixed to the inner wall of one side of the movable space groove, a connecting torsion spring is installed between the clamping ring 1 and the clamping ring 2, a hand pressure strip is integrally formed at one end of the pressure rod, a support rod is fixedly inserted at the other end of the pressure rod, and a pressure roller is movably sleeved on the outer wall of the support rod.

[0008] Preferably, the internal pressure device is provided with a movable hole, an adjuster is movably inserted inside the movable hole, a handle is integrally formed on the outer peripheral wall of the adjuster, a first movable ring and a second movable ring are movably sleeved on the outer wall of the inner support ring, a push rod is fixed to one side of the outer peripheral wall of each of the first and second movable rings, and each of the push rods can contact the sliding arc bar on the corresponding side.

[0009] Preferably, an inner torsion spring is sleeved on the outside of the first movable ring and the second movable ring, and the two ends of the inner torsion spring are respectively in contact with two push rods, so that when there is no external force initially, the push rod is squeezed by the inner torsion spring to press the corresponding sliding arc strip into the interior of the slide groove, so that the spring 2 is in a compressed state, and the outer wall of the side of the adjuster close to the side pressure column can contact the push rod, and the outer wall of the side of the adjuster close to the side pressure column is arranged in an inclined surface.

[0010] Preferably, the detector includes a μ meter and a slide, the slide is movably sleeved on the outside of the connecting rod, the top outer wall of the slide is connected to a free rod via a ball head, the end of the free rod away from the slide is rotatably connected to a rotating rod, the end of the rotating rod away from the free rod is connected to a universal rod via a ball head, the end of the universal rod away from the rotating rod is rotatably connected to a support ring, the μ meter is fixed on the support ring, and a fixing button is provided at the connection between the rotating rod and the free rod, and the fixing button can be turned to fix the rotating rod to the free rod or release the fixation so that the rotating rod can rotate arbitrarily on the free rod.

[0011] The present invention provides a coaxiality detection device for sliding bearing production through improvement, which has the following improvements and advantages compared with the prior art: First, the present invention can achieve the relative rotation of the two bearing bushes of the sliding bearing when the hand wheel is turned to drive the sliding bearing to fit together by simultaneously meshing the movable teeth, auxiliary teeth and passive teeth when the support block is raised to clamp the sliding bearing bush, and can simulate the bush coaxiality of the sliding bearing in actual use, which is convenient for predicting the accuracy of the workpiece after the sliding bearing is produced; Secondly, the present invention can dynamically detect the journal, bushing and double bushing of the sliding bearing. Through the detector that can be adjusted arbitrarily, the detection method of the device is more flexible, the detection range is also wider, and it can target parts of any specifications within the detectable range; Thirdly, the arrangement of the internal pressure device in the present invention can easily observe the coaxiality of the inner wall of the bearing when the parts are initially placed. The symmetrical side pressure columns fall on the inner wall of the bearing. Regardless of whether a single-bearing sliding bearing or a multi-bearing bearing is used, the coaxiality of the inner and outer circumferences of the entire bearing can be easily determined, avoiding rotation detection based on the inclination or offset of the measured axis, and eliminating in advance the influence of errors caused by slight deflections during placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the split structure of the roller finalizer, the object-carrying square platform and the supporting platform in the present invention; Figure 3 It is a schematic diagram of the overall three-dimensional cross-sectional structure of the present invention; Figure 4 yes Figure 3 A partial enlarged view of part A; Figure 5 It is a schematic diagram of the three-dimensional structure of the support shaft, the internal pressure device and the regulator in the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the side pressure column and its connecting parts in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the regulator in the present invention; Figure 8 It is a three-dimensional schematic diagram of the internal pressure device and the regulator in the present invention; Fig. 9 It is a partial three-dimensional cross-sectional schematic diagram of the carrier and its connecting parts in the present invention; Fig.10 yes Figure 3 A partial enlarged view of part B; Fig.11 It is a schematic diagram of the three-dimensional structure of the pressure rod and its connecting parts in the present invention; Fig.12 It is a three-dimensional split schematic diagram of the finale in the present invention; Fig.13 Schematic diagram of the three-dimensional structure of the detector in the present invention Fig.14 It is a schematic diagram of the detection of a double-bearing sliding bearing in an embodiment of the present invention.

[0013] Description of reference numerals: 1. Carrying platform; 2. Connecting block; 3. Support platform; 4. Bottom plate; 5. Carrier; 6. Transmission roller; 7. Connecting rod; 8. Side support platform; 9. Slide; 10. Free rod; 11. Fixing button; 12. Turning rod; 13. μ meter; 14. Main gear; 15. Hand wheel; 16. Pressure rod; 17. Pressure roller; 18. Live platform; 19. Outer bearing; 20. Main shaft; 21. Transmission gear; 22. Universal rod; 23. Internal pressure device; 24. Regulator; 25. Middle shaft; 26. Support shaft; 27. First live ring; 28. Second live ring; 29. ​​Internal pressure column; 30. Side pressure column; 31. Push rod; 32. Internal torsion spring; 33. Slide groove; 34. Movable hole; 35. Handle; 36. Movable column; 37. Support block; 38. Spring 1; 39. Torsion spring at connection; 41. Internal support ring; 42. Tension spring; 44. Movable tooth; 45. Auxiliary tooth; 46. Passive tooth; 47. Fixed ring; 161. Snap ring 1; 162. Hand pressure strip; 171. Support rod; 180. Movable space groove; 181. Snap ring 2; 182. Edge of inner groove; 191. Inner bearing; 221. Support ring; 231. Arc extension plate; 301. Sliding arc strip; 302. Indicator block; 303. Spring 2. DETAILED DESCRIPTION

[0014] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] The present invention provides a coaxiality detection device for sliding bearing production. The technical solution of the present invention is: Reference Figure 1-Figure 14 As shown, a coaxiality detection device for sliding bearing production includes a carrier square platform 1, a support platform 3 is fixed to the outer wall of the bottom of the carrier square platform 1 by screws, and the bottom of the support platform 3 is fixed to the upper surface of the bottom plate 4; a side support platform 8 is also fixed to the top of the bottom plate 4, and two connecting rods 7 are fixed between the side support platform 8 and the support platform 3, and a detector is slidably installed on one of the connecting rods 7, a pressure device is slidably installed on the outer wall of one side of the carrier square platform 1, and a carrier 5 is fixedly installed on the top of the support platform 3, and the top of the carrier 5 is movable A movable column 36 is connected to the carrier 5, a spring 38 is provided between the inner wall of the carrier 5 and the outer wall of the bottom of the movable column 36, a support block 37 is formed integrally on the top of the movable column 36, a support shaft 26 is fixed to the outer wall of one side of the support block 37, an inner pressure device 23 is sleeved on the outer wall of the support shaft 26, a central axis 25 is inserted into the inner wall of the support shaft 26, a passive tooth 46 is fixed to one end of the central axis 25 that passes through the support block 37, an inner pressure column 29 is fixed to the other end of the central axis 25, and the main tooth 1 is connected to the inner rotation of the carrier 1. 4 and two transmission teeth 21, each transmission tooth 21 is respectively plugged with a transmission roller 6 to support the bearing to be tested, the two transmission teeth 21 are respectively meshed with the main teeth 14, the main teeth 14 are fixedly plugged with a main shaft 20 in the center, and the main shaft 20 passes through the object-carrying square platform 1 and extends to the outer side of the outer wall fixedly connected with a hand wheel 15, and a fixing ring 47 is fixed to the outer wall of one side of the object-carrying square platform 1, and the main shaft 20 passes through the fixing ring 47 and one end is fixedly sleeved with a secondary tooth 45, and the outer wall of the fixing ring 47 is movably sleeved with a connecting A tension spring 42 is provided between the connecting block 2 and one side outer wall of the carrier 5, wherein the connecting block 2 and one side wall of the carrier 5 are both provided with a fixed ring hook, and the tension spring 42 is mounted between the connecting block 2 and the carrier 5 in the form of a hook. When there is no need to keep the passive tooth 46 engaged with the movable tooth 44, the tension spring 42 can be removed, and the outer wall of one side of the connecting block 2 away from the loading platform 1 is rotatably connected to the movable tooth 44, and the auxiliary tooth 45 and the passive tooth 46 are both engaged with the movable tooth 44.

[0016] Reference Fig. 9As shown in the figure, regarding the meshing of the movable teeth 44 and the passive teeth 46, it should be noted that: the thickness of the movable teeth 44 is greater than the sum of the thicknesses of the auxiliary teeth 45 and the passive teeth 46, ensuring that the movable teeth 44 can mesh with the auxiliary teeth 45 and the passive teeth 46 at the same time. Secondly, during the rise or fall of the support block 37, the passive teeth 46 will be driven to move at the same time. During the movement, since the movable column 36 only moves longitudinally on the carrier 5, when the connecting block 2 is always subjected to the tension of the tension spring 42 and has a tendency to rotate downward, the movable teeth 44 will also cause the entire support block 37 and the movable column 36 to move longitudinally during the meshing process with the passive teeth 46. In order to prevent the movable column 36 from moving, it is only necessary to ensure that the stiffness coefficient of the spring 38 is much larger than the stiffness coefficient of the tension spring 42 so that the movable column 36 will not be affected by the tension of the tension spring 42 and move. Based on the above implementation process, in order to ensure that the movable tooth 44 is always engaged with the passive tooth 46 within the specified range of the support block 37, the rotation radius of the movable tooth 44 can be increased to increase the movable range of the support block 37, thereby ensuring that the tension spring 42 is always in a stretched state within the adjustable range of the entire support block 37, so as to achieve that the movable tooth 44 and the passive tooth 46 are always in a state of engagement when the support block 37 rises and falls.

[0017] Specifically, an arc-shaped extension plate 231 and an inner support ring 41 are integrally formed on one side of the inner pressure device 23 away from the support block 37. Slide grooves 33 are provided on both sides of the arc-shaped extension plate 231. A sliding arc bar 301 is slidably inserted in each slide groove 33. A spring 2 303 is provided between an outer wall of one side of the sliding arc bar 301 and an inner wall of the corresponding slide groove 33. A side pressure column 30 is rotatably connected to an outer wall of one side of each sliding arc bar 301. An indicator block 302 is also fixed on the top of the sliding arc bar 301. The outer wall of the arc extension plate 231 is engraved with two groups of scale lines in an axially symmetrical direction. The internal pressure device 23 is provided with a movable hole 34, and the regulator 24 is movably inserted inside the movable hole 34. The outer wall of the regulator 24 is integrally formed with a handle 35. The outer wall of the inner support ring 41 is movably sleeved with a first movable ring 27 and a second movable ring 28. A push rod 31 is fixed to one side of the outer wall of the first movable ring 27 and the second movable ring 28, and each push rod 31 can contact the sliding arc bar 301 on the corresponding side.

[0018] Specifically, the pressure roller includes a movable platform 18, a pressure rod 16 and a pressure roller 17. The movable platform 18 is slidably connected to the outer wall of the object-carrying platform 1 on one side close to the detector. A movable space groove 180 is provided inside the movable platform 18. The pressure rod 16 is rotatably connected to the inside of the movable space groove 180. A clamping ring 161 is fixed to the outer wall of one side of the pressure rod 16, and a clamping ring 2 181 is fixed to the inner wall of one side of the movable space groove 180. A connecting torsion spring 39 is installed between the clamping ring 161 and the clamping ring 2 181. So that the outer wall of one side of the pressure rod 16 contacts the inner groove edge 182 of the movable platform 18, and the torsion spring 39 at the connection is also in a torsion state. A hand pressure strip 162 is integrally formed at one end of the pressure rod 16. Pressing the hand pressure strip 162 can make the pressure rod 16 tilt up. When released, the torsion spring 39 at the connection resets the entire pressure rod 16 to contact the inner groove edge 182. The other end of the pressure rod 16 is fixedly inserted with a support rod 171, and the outer wall of the support rod 171 is movably sleeved with a pressure roller 17.

[0019] Furthermore, after the sliding bearing is placed, the movable platform 18 needs to be pressed down so that the pressure roller 17 is pressed against the outer peripheral wall of the bearing, and the pressure rod 16 produces a visible rotation to achieve stable rolling of the bearing on the transmission roller 6.

[0020] Specifically, an inner torsion spring 32 is sleeved on the outside of the first movable ring 27 and the second movable ring 28, and the two ends of the inner torsion spring 32 respectively contact with the two push rods 31, so that when there is no external force initially, the push rod 31 is squeezed by the inner torsion spring 32 to press the corresponding sliding arc bar 301 into the interior of the slide groove 33, so that the spring 2 303 is in a compressed state, and the outer wall of the side of the adjuster 24 close to the side pressure column 30 can contact the push rod 31, and the outer wall of the side of the adjuster 24 close to the side pressure column 30 is set in an inclined surface.

[0021] The inclined surface of the adjuster 24 is set so that when the handle 35 is moved, it can push the two push rods 31 apart to release the restrictions on the sliding arc strips 301 on both sides, so that the side pressure column 30 can directly contact the inner wall of the bearing.

[0022] Reference Figure 4 The inner torsion spring 32 is sleeved on the outside of the first movable ring 27, and as shown in FIG. Figure 7 The two ends of the inner torsion spring 32 are respectively in contact with the push rod 31 to ensure that when the initial adjuster 24 does not contact the push rod 31, the push rod 31 can push the sliding arc strip 301 into the inside of the sliding groove 33.

[0023] Specifically, the detector includes a μ meter 13 and a slide 9, the slide 9 is movably sleeved on the outside of the connecting rod 7, the top outer wall of the slide 9 is connected to the free rod 10 through a ball head, the end of the free rod 10 away from the slide 9 is rotatably connected to the rotating rod 12, the end of the rotating rod 12 away from the free rod 10 is connected to the universal rod 22 through a ball head, the end of the universal rod 22 away from the rotating rod 12 is rotatably connected to the support ring 221, the μ meter 13 is fixed on the support ring 221, a fixing button 11 is provided at the connection between the rotating rod 12 and the free rod 10, rotating the fixing button 11 can fix the rotating rod 12 on the free rod 10 or release the fixation so that the rotating rod 12 can rotate arbitrarily on the free rod 10, when performing detection, the contact end of the μ meter 13 can be placed on the surface of the bearing to be tested, and then the fixing button 11 is rotated to fix the μ meter 13, and the hand wheel 15 is rotated to rotate the bearing to observe the degree of vibration of the μ meter 13 on the surface to be tested.

[0024] Reference Fig.14 , using the double-bearing bearing detection as an example: initially, the internal pressure column 29 is passed through the inner hole of the inner bearing 191 of the sliding bearing, and the support shaft 26 is lifted and placed between the two transmission rollers 6. At this time, the support block 37 rises and the spring 38 is in a stretched state, thereby clamping the entire double-bearing sliding bearing. Then, the various structures of the detector are fixed so that the contact end of the μ meter 13 fits the outer circumferential wall of the outer bearing 19 or the inner circumferential wall of the inner bearing 191 of the bearing. Turn the handwheel 15, and the rotation of the main tooth 14 will drive the two transmission teeth 21 at the bottom to rotate, so that the transmission roller 6 drives the bearing to rotate, and observe the changes in the μ meter pointer 13 to determine the coaxiality of the corresponding bearing.

[0025] Furthermore, when inspecting the inner bearing 191, the adjuster 24 can be first moved in a direction away from the inner pressure device 23, and the sliding arc strips 301 on both sides can be pressed into the inside of the slide groove 33 through the push rod 31. The spring 2 303 is in a compressed state, so that it fits the outer walls of the arc extension plate 231 on both sides, making it easier to insert into the inner hole of the inner bearing 191. After insertion, the adjuster 24 is moved in a direction close to the inner pressure device 23 to release the restriction of the push rod 31 on the sliding arc strip 301. The sliding arc strip 301 is subjected to the restoring force of the spring 2 303 to make the side pressure column 30 and the inner wall of the inner bearing 191. At this time, observe the scale position of the indicator block 302, turn the handwheel 15 to make the bottom transmission roller 6 drive the outer bearing 19 to rotate, and the internal pressure column 29 drives the inner bearing 191 to rotate. At this time, the outer bearing 19 and the inner bearing 191 rotate relative to each other, observe whether the fluctuation of the two indicator blocks 302 is consistent, and then compare the fluctuation range of the pointer of the μ meter 13. This enables the coaxiality of the inner and outer bearings of a double-bearing sliding bearing to be measured simultaneously.

[0026] Based on the above-mentioned detection process of the inner bearing 191, it should be clear that the rotation of the passive tooth 46 directly affects the rotation speed of the inner bearing 191, and the outer bearing 19 at this time is driven by the transmission roller 6 at the bottom. The rotation speeds of the two are affected by the number of meshing teeth between the movable teeth 44, the auxiliary teeth 45 and the passive teeth 46. Therefore, even if the handwheel 15 drives the inner bearing 191 and the outer bearing 19 to rotate in the same direction at the same time, they will be able to move relative to each other. Continuously rotating the handwheel 15 can facilitate the detection of whether the coaxiality of the bearing of the double-bearing sliding bearing changes during operation, and can more accurately predict the impact of subtle changes in coaxiality on actual use.

[0027] In the above-mentioned embodiment, when testing a single-bearing sleeve sliding bearing, the tension spring 42 can be removed so that the inner wall of the bearing sleeve is directly in contact with the internal pressure column 29, and the coaxiality detection is performed by directly turning the hand wheel 15 to drive the bearing sleeve of the entire sliding bearing to rotate. A method for initially detecting the coaxiality of the inner wall of the bearing sleeve is further provided: the two side pressure columns 30 are symmetrically arranged, that is, the two slide grooves 33 are symmetrically arranged, and the spring 2 303 has the same stiffness coefficient, so that after the bearing sleeve is placed, the side pressure columns 30 are symmetrically located on the inner wall of the bearing sleeve. At this time, it is possible to directly observe whether the scale of the indicator block 302 is symmetrical, and when the bearing sleeve rotates, it is possible to directly observe whether the two side pressure columns 30 have axial fluctuations during passive rotation, so as to determine whether the axis of the inner wall of the bearing sleeve is on the same vertical line as the axis of the outer wall of the bearing sleeve.

[0028] As the above-mentioned implementation scheme, a method for detecting the coaxiality of the journal of a sliding bearing can also be provided, specifically: the journal of the sliding bearing is placed on the transmission roller 6, and the movable table 18 is placed on the carrier square table 1 for sliding, so that the pressure roller 17 is pressed on the top of the journal, and the journal test of 200mm long and 35mm in diameter is taken as an example, and a μ meter 13 with a single meter diameter of 3-35mm is used for measurement, and the contact end of the μ meter 13 is brought into contact with the journal, and the hand wheel 15 is turned to rotate the two transmission rollers 6 at the bottom, driving the journal to rotate, and the pointer of the μ meter 13 is observed to jump. If the pointer jumps less than two grids during each measurement, the bearing journal meets the coaxiality detection standard.

[0029] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coaxiality detection device for sliding bearing production, comprising a loading platform (1), characterized in that: The bottom outer wall of the object-carrying square platform (1) is fixed with a support platform (3) by screws, and the bottom of the support platform (3) is fixed to the upper surface of the bottom plate (4); the top of the bottom plate (4) is also fixed with a side support platform (8), and two connecting rods (7) are fixed between the side support platform (8) and the support platform (3), and a detector is slidably mounted on one of the connecting rods (7). A pressure roller is slidably mounted on the outer wall of one side of the object-carrying square platform (1), and a carrier (5) is fixedly mounted on the top of the support platform (3), and a movable column (36) is movably inserted at the top of the carrier (5). A spring (38) is provided between the inner wall of the carrier (5) and the bottom outer wall of the movable column (36), and a support block (37) is integrally formed on the top of the movable column (36), and a support shaft (26) is fixed to the outer wall of one side of the support block (37). The outer wall of the support shaft (26) is sleeved with an internal pressure device (23), the inner wall of the support shaft (26) is plugged with a central shaft (25), one end of the central shaft (25) passing through the support block (37) is fixed with a passive tooth (46), the other end of the central shaft (25) is fixed with an internal pressure column (29), the internal rotation of the object carrier (1) is connected with a main tooth (14) and two transmission teeth (21), each transmission tooth (21) is respectively plugged with a transmission roller (6) for supporting the bearing to be tested, the two transmission teeth (21) are respectively meshed with the main tooth (14), the center of the main tooth (14) is fixedly plugged with a main shaft (20), and the main shaft (20) passes through the object carrier (1) and extends to the outer side of one side of the outer wall fixedly connected with a hand wheel (15), and the outer side of one side of the object carrier (1) is fixed with a fixing ring (47).

2. A coaxiality detection device for sliding bearing production according to claim 1, characterized in that: The main shaft (20) passes through a fixed ring (47), one end of which is fixedly sleeved with a secondary tooth (45); the outer wall of the fixed ring (47) is movably sleeved with a connecting block (2); a tension spring (42) is provided between an outer wall of one side of the connecting block (2) and an outer wall of one side of the carrier (5); an outer wall of a side of the connecting block (2) away from the object-carrying platform (1) is rotatably connected with a movable tooth (44), and the secondary tooth (45) and the passive tooth (46) are both engaged with the movable tooth (44).

3. The coaxiality detection device for sliding bearing production according to claim 1 is characterized in that: An arc extension plate (231) and an inner support ring (41) are integrally formed on one side of the inner pressure device (23) away from the support block (37), and slide grooves (33) are provided on both sides of the arc extension plate (231). A sliding arc bar (301) is slidably inserted inside each of the slide grooves (33), and a spring 2 (303) is provided between an outer wall of one side of the sliding arc bar (301) and an inner wall of the corresponding slide groove (33). An outer wall of one side of each sliding arc bar (301) is rotatably connected to a side pressure column (30), and an indicator block (302) is fixedly provided on the top of the sliding arc bar (301). The outer peripheral wall of the arc extension plate (231) is engraved with two groups of scale lines in an axially symmetrical direction.

4. The coaxiality detection device for sliding bearing production according to claim 1 is characterized in that: The pressure device comprises a movable platform (18), a pressure rod (16) and a pressure roller (17); the movable platform (18) is slidably connected to the outer wall of the object-carrying platform (1) near the detector; a movable space groove (180) is provided inside the movable platform (18); the pressure rod (16) is rotatably connected to the inside of the movable space groove (180); a clamping ring 1 (161) is fixed to the outer wall of one side of the pressure rod (16); a clamping ring 2 (181) is fixed to the inner wall of one side of the movable space groove (180); a connecting torsion spring (39) is installed between the clamping ring 1 (161) and the clamping ring 2 (181); a hand pressure strip (162) is integrally formed at one end of the pressure rod (16); a support rod (171) is fixedly inserted at the other end of the pressure rod (16); and the outer wall of the support rod (171) is movably sleeved with a pressure roller (17).

5. The coaxiality detection device for sliding bearing production according to claim 3 is characterized in that: The inner pressure device (23) is provided with a movable hole (34), and the regulator (24) is movably inserted in the movable hole (34). The outer peripheral wall of the regulator (24) is integrally formed with a handle (35). The outer wall of the inner support ring (41) is movably sleeved with a first movable ring (27) and a second movable ring (28). A support rod (31) is fixed to one side of the outer peripheral wall of each of the first movable ring (27) and the second movable ring (28), and each of the support rods (31) can contact the sliding arc strip (301) on the corresponding side.

6. A coaxiality detection device for sliding bearing production according to claim 5, characterized in that: An inner torsion spring (32) is sleeved on the outside of the first movable ring (27) and the second movable ring (28), and the two ends of the inner torsion spring (32) are respectively in contact with the two push rods (31), so that when there is no external force at the beginning, the push rod (31) is squeezed by the inner torsion spring (32) to press the corresponding sliding arc strip (301) into the inside of the slide groove (33), so that the second spring (303) is in a compressed state, and the outer wall of the side of the regulator (24) close to the side pressure column (30) can contact the push rod (31), and the outer wall of the side of the regulator (24) close to the side pressure column (30) is arranged in an inclined surface.

7. The coaxiality detection device for sliding bearing production according to claim 1 is characterized in that: The detector comprises a μ meter (13) and a slide (9), wherein the slide (9) is movably sleeved on the outside of the connecting rod (7), the top outer wall of the slide (9) is connected to a free rod (10) via a ball head, the end of the free rod (10) away from the slide (9) is rotatably connected to a rotating rod (12), the end of the rotating rod (12) away from the free rod (10) is connected to a universal rod (22) via a ball head, the end of the universal rod (22) away from the rotating rod (12) is rotatably connected to a support ring (221), the μ meter (13) is fixed to the support ring (221), and a fixing button (11) is provided at the connection between the rotating rod (12) and the free rod (10), and the fixing button (11) can be turned to fix the rotating rod (12) on the free rod (10) or release the fixing so that the rotating rod (12) can be rotated arbitrarily on the free rod (10).

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