High-precision bearing pressure testing machine

Abstract

The utility model relates to the technical field of bearing pressure testing, and discloses a high-precision bearing pressure testing machine which comprises a workbench, the top of the workbench is fixedly connected with an extrusion table, the top of the extrusion table is rotatably connected with an air cylinder, and the driving end of the air cylinder is fixedly connected with a rotating disc. The top of the extrusion table is fixedly connected with a fixing disc, a sliding groove is formed in the fixing disc, a clamping block is slidably connected into the sliding groove, two fixing rods are fixedly connected to the top of the workbench, sliding blocks are slidably connected to the outer sides of the fixing rods, and two automatic assemblies are fixedly connected into the sliding blocks. According to the utility model, the structural design utilizes the rotation of the rotating disc and the cooperation of the limiting groove and the sliding groove, so that the clamping blocks can accurately move towards the center of the fixed disc, the bearing is accurately positioned and fixed, the bearing is ensured to be in an accurate position in the testing process, and the testing error caused by inaccurate positioning is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing pressure test technical field especially relates to a high accuracy bearing pressure testing machine. BACKGROUND

[0002] Bearing pressure testing machine can be used in quality detection in bearing production, performance test in research and development stage and failure analysis when fault occurs in use, has the benefit such as improving equipment reliability, guaranteeing safety production, reducing cost and improving bearing production enterprise product competitiveness, bearing pressure testing machine needs high accuracy because it can accurately evaluate bearing performance to judge whether it meets the standard and requirement, detects subtle defects to avoid serious fault, satisfies the high standard of different industries such as automobile manufacturing, precision machining etc., helps bearing research and development to accurately analyze and optimize structure to promote technological progress, and can guarantee the consistency of test results, is beneficial to production quality control and product authentication to ensure batch quality standard uniformity.

[0003] High accuracy bearing pressure testing machine is generally composed of rack, base, measuring device etc., and the working principle of high accuracy bearing pressure testing machine is that through hydraulic or electric loading device, accurate pressure load is applied to bearing according to set parameter, displacement, force, friction torque etc. various sensors convert physical change of bearing under pressure into electric signal, data acquisition and control device processes and converts electric signal into digital signal after analysis and calculation, and feedback control is carried out to loading device according to pre-set process and parameter to realize automatic loading, and the performance index such as bearing deformation and carrying capacity is compared with standard value to evaluate bearing performance.

[0004] The existing part high accuracy bearing pressure testing machine cannot fix bearing when detecting, and bearing will displace or shake in the testing process, which leads to that the loaded pressure cannot accurately act on the expected position, so that the measured pressure value, deformation and other data are deviated, and the accurate evaluation of bearing performance is affected, and since bearing is not fixed, pressure distribution is uneven, which will make bearing local part bear excessive pressure, and other parts are insufficiently stressed, which will lead to that the measured carrying capacity and other indexes cannot truly reflect the overall performance of bearing, and the quality problems of each part of bearing cannot be accurately detected, therefore, the high accuracy bearing pressure testing machine is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of high accuracy bearing pressure testing machine, to improve the problem that bearing cannot be fixed when detecting in prior art.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a high accuracy bearing pressure testing machine, including work table, the top fixed connection of work table has extrusion platform, the top rotatory connection of extrusion platform has pneumatic cylinder, the drive end fixed connection of pneumatic cylinder has rotary disc, the top fixed connection of extrusion platform has fixed disc, the inside of fixed disc is opened the sliding slot, the inside sliding connection of sliding slot has clamping block, the top fixed connection of work table has two fixed links, the outside sliding connection of fixed link has sliding block, the inside fixed connection of sliding block has two automatic components,

[0008] As a further description of the above technical solutions:

[0009] Two automatic components include two transmission pipes, the outside fixed connection of two transmission pipes is in the inside of sliding block, the inside of sliding block is opened storage groove, a plurality of connecting grooves are opened in the inside of storage groove, a plurality of the inside rotating connection of connecting groove has ball;

[0010] As a further description of the above technical solutions:

[0011] The inside sliding connection of transmission pipe has piston, the outside rotating connection of a plurality of ball is in the outside of fixed link;

[0012] As a further description of the above technical solutions:

[0013] The inside of rotary disc is opened a plurality of limit slots, the outside sliding connection of clamping block is in the inside of limit slot;

[0014] As a further description of the above technical solutions:

[0015] The bottom rotating connection of limit slot is in the top of extrusion platform, one end fixed connection of clamping block has antiskid pad;

[0016] As a further description of the above technical solutions:

[0017] The top rotating connection of limit slot is in the bottom of fixed disc, the bottom sliding connection of clamping block is in the top of extrusion platform;

[0018] As a further description of the above technical solutions:

[0019] The top fixed connection of work table has control box, the front rotating connection of control box has two knobs;

[0020] As a further description of the above technical solutions:

[0021] The bottom fixed connection of sliding block has extrusion disc, the bottom sliding connection of extrusion disc is in the top of fixed disc.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the rotating disc is driven by the starting cylinder, the rotating disc cooperates with the limiting groove, the limiting groove drives the clamping block, the clamping block cooperates with the fixed disc, and the fixed disc cooperates with the sliding groove, so that the bearing is fixed, the structure design utilizes the rotation of the rotating disc and the cooperation of the limiting groove and the sliding groove, the clamping block can be accurately moved to the center of the fixed disc, the bearing is accurately positioned and fixed, the bearing is ensured to be in the accurate position during the test process, and the test error caused by inaccurate positioning is reduced.

[0024] 2. In the utility model, the transmission pipe cooperates with the storage groove, the storage groove cooperates with the connecting groove, and the connecting groove cooperates with the ball, so that the outer side of the fixed rod is automatically added with lubricating oil, the transmission pipe accurately delivers the lubricating oil into the storage groove, and then the lubricating oil is taken out by the connecting groove and the ball and is applied to the outer side of the fixed rod, the lubricating oil can be accurately applied to the position needing lubrication, that is, the contact position of the sliding block and the fixed rod, the waste and random flow of the lubricating oil are avoided, and the lubricating accuracy and effect are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic view of the high-precision bearing pressure testing machine;

[0026] Figure 2 It is a structure schematic view of the sliding block of the high-precision bearing pressure testing machine;

[0027] Figure 3 It is Figure 2 the enlarged view of A in the figure;

[0028] Figure 4 It is Figure 2 the enlarged view of B in the figure.

[0029] LEGEND:

[0030] 1, workbench;2, control box;3, extrusion table;4, cylinder;5, rotating disc;6, limiting groove;7, clamping block;8, non-slip pad;9, fixed disc;10, sliding groove;11, fixed rod;12, sliding block;13, extrusion disc;14, transmission pipe;15, piston;16, storage groove;17, ball;18, connecting groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] With reference to Figures 1 to 3 The utility model provides an embodiment: a kind of high-precision bearing pressure testing machine, including workbench 1, workbench 1 is made of high-strength metal material, workbench 1 has excellent stability, can effectively support the various components of testing machine, ensure that there is no displacement in the testing process due to vibration or external force influence, the top of workbench 1 is fixedly connected with control box 2, control box 2 is used to control the operating parameter of whole testing machine, control box 2 front end is rotatably connected with two knobs, by rotating these two knobs, staff can conveniently control device, provide flexible control mode for the test of different types of bearings.

[0033] The top of workbench 1 is fixedly connected with extrusion platform 3, extrusion platform 3 is made of solid alloy as important part of bearing test, can withstand greater pressure without deformation, extrusion platform 3 top rotatably connected with cylinder 4, cylinder 4 as the key device of providing power, by internal air pressure drive, can accurately control the rotation angle and intensity of rotating disc 5, the driving end of cylinder 4 is fixedly connected with rotating disc 5, rotating disc 5 stably rotates under the drive of cylinder 4, rotating disc 5 is internally provided with a plurality of limiting grooves 6, limiting groove 6 is specially radially designed, can ingeniously guide the movement track of clamping block 7.

[0034] The top of limiting groove 6 is rotatably connected at the bottom of fixed disc 9, the bottom is rotatably connected at the top of extrusion platform 3, this connection mode guarantees the stability of rotating disc 5 in the process of rotation, so that it can continuously and accurately exert force on clamping block 7, the top of extrusion platform 3 is fixedly connected with fixed disc 9, fixed disc 9 is used to bear and position bearing, ensure that bearing is in stable position in the testing process, its inside is provided with sliding slot 10, the size of sliding slot 10 is accurately matched with clamping block 7, so that clamping block 7 can smoothly slide therein.

[0035] The slide 10 has a sliding connection to a clamping block 7. Under the combined action of the limiting groove 6 and the slide 10, the clamping block 7 can move accurately toward the center of the fixed plate 9. The bottom of the clamping block 7 is slidably connected to the top of the extrusion table 3. This design provides stable support for the sliding of the clamping block 7 and prevents it from shifting during movement. One end of the clamping block 7 is fixedly connected to an anti-slip pad 8. The anti-slip pad 8 is made of special rubber material and has high friction. When the clamping block 7 contacts and fixes the bearing, the anti-slip pad 8 can effectively prevent the bearing from sliding and ensure the firmness of the fixation.

[0036] The outer side of the clamping block 7 is slidably connected to the inside of the limiting groove 6. Through this connection, the rotation of the rotating disk 5 can be converted into the linear movement of the clamping block 7 along the slide groove 10. Two fixed rods 11 are fixedly connected to the top of the worktable 1. The fixed rods 11 provide guidance for the movement of the sliding block 12, ensuring that the sliding block 12 can move vertically and stably up and down. The outer side of the fixed rod 11 is slidably connected to the sliding block 12. The sliding block 12 slides smoothly and stably on the fixed rod 11, which can accurately control the pressing position and force of the extrusion disk 13. The bottom of the sliding block 12 is fixedly connected to the extrusion disk 13. The extrusion disk 13 acts directly on the bearing and applies pressure to it for testing. Its bottom is slidably connected to the top of the fixed disk 9 to ensure good contact and stable pressure transmission with the bearing during the extrusion process. Two automatic components are fixedly connected inside the sliding block 12.

[0037] Reference Figure 1 , Figure 3 and Figure 4 The two automatic components include two transmission pipes 14, which are responsible for delivering lubricating oil to a designated location. A piston 15 is slidably connected inside the transmission pipe 14. The sliding of the piston 15 inside the transmission pipe 14 can precisely control the amount of lubricating oil delivered, ensuring that the appropriate amount of lubricating oil is delivered to the storage tank 16. The outer sides of the two transmission pipes 14 are fixedly connected to the inside of the sliding block 12 to ensure a tight connection between the transmission pipes 14 and the sliding block 12 and prevent lubricating oil leakage. The sliding block 12 has a storage tank 16 inside, which is used to store a certain amount of lubricating oil to meet the lubrication requirements during the test. The storage tank 16 has multiple connecting slots 18 inside, which provide space for the installation and rotation of the ball bearings 17, so that the ball bearings 17 can effectively carry out the lubricating oil in the storage tank 16.

[0038] The inner part of the plurality of connecting grooves 18 is rotationally connected with a plurality of rolling balls 17, the rolling balls 17 are flexibly rotated in the connecting grooves 18, when the sliding block 12 slides outside the fixed rod 11, the rolling balls 17 are in contact with the fixed rod 11 and are rotated, so as to take out the lubricating oil in the inner part of the storage groove 16, the outer part of the plurality of rolling balls 17 is rotationally connected outside the fixed rod 11, through the rotational connection mode, the uniform smearing of the lubricating oil outside the fixed rod 11 is realized, the abrasion of the contact place between the sliding block 12 and the fixed rod 11 is effectively reduced, and the service life of the equipment is prolonged.

[0039] Working principle: when the staff needs to extrude the bearing for testing, the bearing can be placed on the top of the fixed disc 9, at this time, the cylinder 4 is started to drive the rotating disc 5, the limiting groove 6 in the rotating disc 5 drives the clamping block 7, the top of the limiting groove 6 is provided with the fixed disc 9, the inner part of the fixed disc 9 is provided with the sliding groove 10, the limiting groove 6 has an arc, and the sliding groove 10 has no arc, so when the rotating disc 5 is driven, the clamping block 7 is extruded by two different grooves, the rotating disc 5 is rotating, and the fixed disc 9 is fixed, so the clamping block 7 is extruded by the limiting groove 6 and slides along the trace of the sliding groove 10, so that the plurality of clamping blocks 7 slide to the inner part of the fixed disc 9 at the same time, until the outer side of the bearing is contacted and the bearing is fixed.

[0040] When the bearing is fixed, the piston 15 can be taken out from the inner part of the transmission pipe 14 in advance, the lubricating oil is poured into the inner part of the transmission pipe 14, so that the lubricating oil enters the inner part of the storage groove 16 in the sliding block 12 through the transmission pipe 14, at this time, the sliding block 12 is controlled by the control box 2, so that the sliding block 12 drives the extrusion disc 13 to slide downwards, when the sliding block 12 slides outside the fixed rod 11, the rolling balls 17 in the plurality of connecting grooves 18 in the inner part of the storage groove 16 are rotated, the lubricating oil in the inner part of the storage groove 16 is taken out through the rotation of the rolling balls 17, so as to automatically smear the lubricating oil outside the fixed rod 11, and reduce the abrasion of the contact place between the sliding block 12 and the fixed rod 11.

[0041] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-precision bearing pressure testing machine comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with an extrusion table (3), the top of the extrusion table (3) is rotatably connected with a cylinder (4), the driving end of the cylinder (4) is fixedly connected with a rotating disc (5), the top of the extrusion table (3) is fixedly connected with a fixed disc (9), the inside of the fixed disc (9) is provided with a sliding groove (10), the sliding groove (10) is slidably connected with a clamping block (7), the top of the workbench (1) is fixedly connected with two fixed rods (11), the outside of the fixed rod (11) is slidably connected with a sliding block (12), the inside of the sliding block (12) is fixedly connected with two automatic components.

2. A high precision bearing pressure tester as claimed in claim 1, characterized in that: Two automatic components include two transmission pipes (14), the outside of the transmission pipe (14) is fixedly connected in the inside of the sliding block (12), the inside of the sliding block (12) is provided with a storage groove (16), the inside of the storage groove (16) is provided with a plurality of connecting grooves (18), the inside of the connecting groove (18) is rotatably connected with a plurality of ball bearings (17).

3. A high precision bearing press test machine as set forth in claim 2, characterized in that: The inside of the transmission pipe (14) is slidably connected with a piston (15), the outside of the ball bearing (17) is rotatably connected on the outside of the fixed rod (11).

4. The high precision bearing pressure tester of claim 1, wherein: The inside of the rotating disc (5) is provided with a plurality of limiting grooves (6), the outside of the clamping block (7) is slidably connected in the inside of the limiting groove (6).

5. A high precision bearing press test machine as claimed in claim 4, wherein: The bottom of the limiting groove (6) is rotatably connected on the top of the extrusion table (3), one end of the clamping block (7) is fixedly connected with an anti-skid pad (8).

6. A high precision bearing press test machine as set forth in claim 4, characterized in that: The top of the limiting groove (6) is rotatably connected on the bottom of the fixed disc (9), the bottom of the clamping block (7) is slidably connected on the top of the extrusion table (3).

7. The high precision bearing pressure tester of claim 1, wherein: The top of the workbench (1) is fixedly connected with a control box (2), the front end of the control box (2) is rotatably connected with two knobs.

8. The high precision bearing pressure tester of claim 1, wherein: The bottom of the sliding block (12) is fixedly connected with an extrusion disc (13), the bottom of the extrusion disc (13) is slidably connected on the top of the fixed disc (9).

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