Tool clamp for bearing sealing test

Abstract

The utility model discloses a work fixture for bearing sealing test, which belongs to the technical field of bearing sealing test and comprises a test frame, a test mechanism is arranged on the surface of the test frame, the work fixture further comprises an anti-moving mechanism, the anti-moving mechanism comprises an air cylinder fixedly connected to the end portion of the test frame, and the bottom end of the air cylinder is fixedly connected with a push frame. The positions of the three sets of rubber air bags are changed at the same time through the air cylinder and the push frame, the deep groove ball bearing is clamped, air is conveyed into the rubber air bags through the push frame, the push plug and the air storage cylinder, the rubber air bags stretch due to sufficient air, and then the rubber air bags are more suitable for being tightly attached to the outer edge of the deep groove ball bearing. Compared with the prior art that the effect of clamping the outer edge of the bearing is poor, and the accuracy of detecting the sealing performance of the bearing is influenced, the method guarantees the accuracy of detecting the sealing performance of the bearing through stably clamping the outer edge of the bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing seal test technical field, concretely relates to a bearing seal test frock clamp. BACKGROUND

[0002] Under the super high speed operation, deep groove ball bearing will face extremely high temperature and pressure and possible impurity invasion. In order to detect the sealing performance of deep groove ball bearing, frock clamp is used to clamp deep groove ball bearing, and then sealing test is carried out.

[0003] Through the search, the patent "bearing sealing performance test device" authorized announcement "CN222166466U" extrudes the inner sealing pad through the outer ring of the bearing body, increases the sealing property of the bearing body inserted into the detection cylinder, then the driving shaft on the motor is inserted into the inner ring of the bearing body, the motor is started to drive the driving shaft to rotate, is used to drive the bearing body to rotate, controls under different speed conditions, carries out the sealing property detection of the bearing body.

[0004] In the above application, the bearing body inner ring will produce vibration force in rotation by only relying on the sealing pad extruding the bearing body outer ring, which is easy to cause the bearing body to produce deviation, and further affect the accuracy of the bearing sealing property detection.

[0005] Based on this, the utility model discloses a bearing sealing test frock clamp to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings existing in the prior art, the utility model provides a bearing sealing test frock clamp.

[0007] To achieve the above object, the utility model is realized through the following technical schemes:

[0008] A bearing sealing test frock clamp, including test frame, the surface of test frame is equipped with test mechanism, still including anti -migration mechanism, the anti -migration mechanism includes the gas cylinder of fixed connection in the end of test frame, the bottom of gas cylinder is fixedly connected with push frame, the inner wall of test frame is connected with the clamping block of annular distribution slidingly, the surface of clamping block is fixedly connected with rubber air bag, the end of clamping block contacts on the surface upper end of push frame, the end of test frame is fixedly connected with the gas cylinder of annular distribution, the inside of gas cylinder is filled with compressed gas, one end of gas cylinder is linked with the bottom of rubber air bag, the inner wall of gas cylinder is connected with push plug slidingly.

[0009] Further, the inner wall of the test frame is slidingly connected with the centrally located blocks of annular distribution, and the surface of the centrally located blocks is rollingly connected with rubber balls.

[0010] Further, the end of the centering block is fixedly connected with a first spring, and the other end of the first spring is fixedly connected to the surface of the test frame.

[0011] Further, the end of the clamping block is fixedly connected with a second spring, and the other end of the second spring is fixedly connected to the surface of the test frame.

[0012] Further, the top end of the air cylinder is fixedly connected with a third spring, and the top end of the third spring is fixedly connected to the end of the push plug.

[0013] Further, the inner wall of the test frame is fixedly connected with a waterproof ring distributed in a ring shape, and the surface of the push frame is slidingly connected to the inner wall of the waterproof ring.

[0014] Further, the inner wall of the air cylinder is fixedly connected with a sheltering rod at the lower end.

[0015] Further, the test mechanism comprises a first electric push rod fixedly connected to the upper end of the surface of the test frame, and the telescopic end of the first electric push rod is fixedly connected with a rubber plug.

[0016] Further, the end of the test frame is fixedly connected with a servo motor, the output shaft of the servo motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is rotatably connected to the inner wall of the test frame, the surface of the upper end of the rotating shaft is fixedly connected with a second electric push rod, and the telescopic end of the second electric push rod is fixedly connected with a pressing block.

[0017] Further, the end of the test frame is fixedly connected with two pressure sensors.

[0018] Beneficial effects

[0019] 1. By the air cylinder and the push frame, the positions of the three groups of rubber air bags are simultaneously changed, so that the rubber air bags clamp the deep groove ball bearing, by the push frame, the push plug and the air cylinder, the gas in the rubber air bag is delivered, so that the rubber air bag is stretched due to sufficient gas, and the rubber air bag is more suitable for closely adhering to the outer edge of the deep groove ball bearing. Compared with the poor clamping effect on the outer edge of the bearing, the accuracy of detecting the sealing performance of the bearing is affected. In this way, the outer edge of the bearing is firmly clamped, and the accuracy of detecting the sealing performance of the bearing is ensured.

[0020] 2. By the first spring, the centering block and the rubber ball, the deep groove ball bearing is placed in the test frame, and the clamping force of the three groups of rubber air bags on the deep groove ball bearing is moderate, so that the stable clamping of the deep groove ball bearing is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 It is a perspective view of a tool fixture for bearing sealing test;

[0023] Figure 2 It is a test frame sectional view of a tool fixture for bearing sealing test;

[0024] Figure 3 It is a perspective view of a shift prevention mechanism of a tool fixture for bearing sealing test;

[0025] Figure 4 It is Figure 2 It is an enlarged view of A in the middle.

[0026] The reference numerals in the drawings represent respectively:

[0027] 1, test frame; 2, test mechanism; 21, first electric push rod; 22, rubber plug; 23, servo motor; 24, rotating shaft; 25, second electric push rod; 26, pressing block; 27, pressure sensor; 3, shift prevention mechanism; 31, air cylinder; 32, push frame; 33, clamping block; 34, rubber air bag; 35, air cylinder; 36, plug; 37, first spring; 38, centering block; 39, second spring; 310, waterproof ring; 311, shade rod; 312, third spring; 313, rubber ball. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The present application will be further described below in combination with the embodiments.

[0030] In some embodiments, please refer to the drawings attached in the specification Figures 1-4The utility model provides a bearing seal test tool fixture, including test frame 1, the surface of test frame 1 is equipped with test mechanism 2, still including anti -migration mechanism 3, anti -migration mechanism 3 includes the air cylinder 31 fixedly connected in test frame 1 end, the bottom of air cylinder 31 is fixedly connected with push frame 32, the inner wall of test frame 1 is connected with the clamping block 33 of annular distribution and slides, the surface of clamping block 33 is fixedly connected with rubber air bag 34, and the end of clamping block 33 is contacted with the surface upper end of push frame 32, and the end of test frame 1 is fixedly connected with the gas cylinder 35 of annular distribution, and the inside of gas cylinder 35 is filled with compressed gas, and one end of gas cylinder 35 is communicated with the bottom of rubber air bag 34, and the inner wall of gas cylinder 35 is slidably connected with push plug 36. Gas cylinder 35 and rubber air bag 34 are communicated through corrugated hose.

[0031] In the utility model embodiment, the deep groove ball bearing is placed in the test frame 1, and the air cylinder 31 is manually opened, the bottom end of the air cylinder 31 is lowered to drive the push frame 32 to be lowered to a suitable height, and then the air cylinder 31 is manually closed, because the side surface of the upper end of the push frame 32 is in contact with the end of the clamping block 33, the push frame 32 in the lowering process pushes the clamping block 33 and the rubber air bag 34 to move towards the deep groove ball bearing, the push frame 32 is lowered to abut against the top end of the push plug 36 and push the push plug 36 to move downward, the push plug 36 in the lowering process pushes the compressed gas stored in the gas cylinder 35 to be delivered to the rubber air bag 34, so that the rubber air bag 34 is stretched due to the sufficient gas, and is more closely attached to the outer edge of the deep groove ball bearing, thereby stably clamping the deep groove ball bearing, and the test mechanism 2 seals the open end of the test frame 1 and injects water into the test frame 1 to perform the sealing test.

[0032] In the utility model embodiment, the air cylinder 31 and the push frame 32 are used to simultaneously change the positions of the three rubber air bags 34, so that the rubber air bags 34 clamp the deep groove ball bearing, the push frame 32, the push plug 36 and the gas cylinder 35 are used to deliver the gas in the rubber air bag 34, so that the rubber air bag 34 is stretched due to the sufficient gas, and is more closely attached to the outer edge of the deep groove ball bearing, thereby stably clamping the deep groove ball bearing, and ensuring the accuracy of the bearing sealing test.

[0033] In some embodiments, as Figure 3 and Figure 4As shown, as a preferred embodiment of the utility model, the inner wall of test frame 1 is slidably connected with the centrally located block 38 distributed in a ring, the surface of centrally located block 38 is rollably connected with rubber ball 313, the end of centrally located block 38 is fixedly connected with first spring 37, the other end of first spring 37 is fixedly connected to the surface of test frame 1, the end of clamping block 33 is fixedly connected with second spring 39, the other end of second spring 39 is fixedly connected to the surface of test frame 1, the top end of gas cylinder 35 is fixedly connected with third spring 312, the top end of third spring 312 is fixedly connected to the end of push plug 36, the inner wall of test frame 1 is fixedly connected with waterproof ring 310 distributed in a ring, the surface of push frame 32 is slidably connected to the inner wall of waterproof ring 310, the inner wall of gas cylinder 35 is fixedly connected with the lower end of shielding rod 311. Push plug 36 and waterproof ring 310 are both silicone rubber components. First spring 37, second spring 39 and third spring 312 are all stainless steel components.

[0034] In the embodiment of the utility model, when the clamping of the outer edge of the deep groove ball bearing needs to be released, the gas cylinder 31 is manually opened, the bottom end of the gas cylinder 31 is moved upward to drive the push frame 32 to move upward to an appropriate height, the gas cylinder 31 is manually closed, the push frame 32 moves upward to release the interference of the end of the clamping block 33 and the top end of the push plug 36, at this time, the elastic force of the second spring 39 drives the clamping block 33 and the rubber air bag 34 to move away from the direction of the bearing outer edge, the elastic force of the third spring 312 pushes the push plug 36 to move upward to an appropriate height, the push plug 36 moves upward in the gas cylinder 35, so that the suction force is generated in the gas cylinder 35, and then the gas in the rubber air bag 34 flows back to the gas cylinder 35, so that the clamping state of the outer edge of the deep groove ball bearing is released.

[0035] In the embodiment of the utility model, through the first spring 37, the centrally located block 38 and the rubber ball 313, the deep groove ball bearing is placed in the test frame 1, and then the clamping force of the three groups of rubber air bags 34 on the deep groove ball bearing is moderate, so that the stable clamping of the deep groove ball bearing is ensured. Through the waterproof ring 310, the connection between the push frame 32 and the test frame 1 is sealed, so that the water in the test frame 1 does not penetrate into the lower end of the inner wall of the test frame 1, and then the service life of the gas cylinder 31 is ensured.

[0036] In some embodiments, as Figure 1 and Figure 2As shown, as a preferred embodiment of the utility model, the testing mechanism 2 includes the first electric push rod 21 fixedly connected to the surface upper end of the testing frame 1, the telescopic end of the first electric push rod 21 is fixedly connected with the rubber plug 22, the end of the testing frame 1 is fixedly connected with the servo motor 23, the output shaft of the servo motor 23 is fixedly connected with the rotating shaft 24, the surface of the rotating shaft 24 is rotatably connected to the inner wall of the testing frame 1, the surface upper end of the rotating shaft 24 is fixedly connected with the second electric push rod 25, the telescopic end of the second electric push rod 25 is fixedly connected with the pressing block 26, and the end of the testing frame 1 is fixedly connected with the two pressure sensors 27. The second electric push rod 25 is wirelessly connected.

[0037] The water inlet pipe at the top end of the rubber plug 22 is flange-connected with the water inlet pipe of the water pump, and the water outlet pipe of the water pump is placed in the water pool or other water storage container.

[0038] In the embodiment of the utility model, the second electric push rod 25 is manually opened, the telescopic end of the second electric push rod 25 moves to drive the pressing block 26 to move, the surface of the pressing block 26 is pressed against the inner edge of the deep groove ball bearing, and then the inner edge of the bearing is tightly pressed, the second electric push rod 25 is manually closed and the first electric push rod 21 is opened, the telescopic end of the first electric push rod 21 moves downward to drive the rubber plug 22 to move downward and be clamped in the inner wall of the testing frame 1, the first electric push rod 21 is manually closed and the servo motor 23 is opened, at this time, the water pump extracts the external water and transports it to the inside of the testing frame 1 through the water inlet pipe at the top end of the rubber plug 22, the output shaft of the servo motor 23 rotates to drive the rotating shaft 24, the second electric push rod 25, the pressing block 26 and the bearing inner edge to rotate, at this time, the pressure sensor 27 detects the water pressure in the testing frame 1, when the water pressure does not change, the sealing performance of the deep groove ball bearing is qualified, when the water pressure changes, the sealing performance of the deep groove ball bearing is unqualified. After the detection is completed, the water outlet pipe is opened, and the water in the testing frame 1 is discharged to the designated place through the front end pipe of the testing frame 1 and the water outlet pipe.

[0039] It should be noted that the testing frame 1, the first electric push rod 21, the rubber plug 22, the servo motor 23, the second electric push rod 25, the pressure sensor 27 and the cylinder 31 in the above description are all mature devices in the prior art, and the specific model can be selected according to the actual needs, and the power supply of the first electric push rod 21, the servo motor 23, the second electric push rod 25, the pressure sensor 27 and the cylinder 31 can be the built-in power supply or the mains power supply, and the specific power supply mode is selected as needed, which will not be described here.

[0040] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tooling fixture for bearing seal testing, comprising a test frame (1), wherein a test mechanism (2) is provided on the surface of the test frame (1), characterized in that: It also includes an anti-shifting mechanism (3), which includes a cylinder (31) fixedly connected to the end of the test frame (1). A pusher (32) is fixedly connected to the bottom end of the cylinder (31). A ring-shaped clamping block (33) is slidably connected to the inner wall of the test frame (1). A rubber air bladder (34) is fixedly connected to the surface of the clamping block (33). The end of the clamping block (33) contacts the upper surface of the pusher (32). A ring-shaped air storage cylinder (35) is fixedly connected to the end of the test frame (1). The air storage cylinder (35) is filled with compressed gas. One end of the air storage cylinder (35) is connected to the bottom of the rubber air bladder (34). A push plug (36) is slidably connected to the inner wall of the air storage cylinder (35).

2. The bearing seal testing fixture according to claim 1, characterized in that, The inner wall of the test frame (1) is slidably connected with a ring-shaped central block (38), and the surface of the central block (38) is rolledly connected with a rubber ball (313).

3. The bearing seal testing fixture according to claim 2, characterized in that, The centering block (38) is fixedly connected to a first spring (37) at one end, and the other end of the first spring (37) is fixedly connected to the surface of the test frame (1).

4. The bearing seal testing fixture according to claim 1, characterized in that, The end of the clamp (33) is fixedly connected to a second spring (39), and the other end of the second spring (39) is fixedly connected to the surface of the test frame (1).

5. The bearing seal testing fixture according to claim 1, characterized in that, A third spring (312) is fixedly connected to the top of the gas storage cylinder (35), and the top of the third spring (312) is fixedly connected to the end of the push plug (36).

6. The bearing seal testing fixture according to claim 1, characterized in that, The inner wall of the test frame (1) is fixedly connected with a ring-shaped waterproof ring (310), and the surface of the pusher (32) is slidably connected to the inner wall of the waterproof ring (310).

7. The bearing seal testing fixture according to claim 1, characterized in that, A baffle rod (311) is fixedly connected to the lower end of the inner wall of the gas storage cylinder (35).

8. The bearing seal testing fixture according to claim 1, characterized in that, The testing mechanism (2) includes a first electric push rod (21) fixedly connected to the upper surface of the testing frame (1), and a rubber plug (22) is fixedly connected to the telescopic end of the first electric push rod (21).

9. The bearing seal testing fixture according to claim 1, characterized in that, A servo motor (23) is fixedly connected to the end of the test frame (1). The output shaft of the servo motor (23) is fixedly connected to a rotating shaft (24). The surface of the rotating shaft (24) is rotatably connected to the inner wall of the test frame (1). A second electric push rod (25) is fixedly connected to the upper end of the surface of the rotating shaft (24). A pressure block (26) is fixedly connected to the telescopic end of the second electric push rod (25).

10. The bearing seal testing fixture according to claim 1, characterized in that, Two pressure sensors (27) are fixedly connected to the end of the test frame (1).

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