Bearing bush thickness automatic detector

Abstract

The utility model relates to the technical field of bearing bush detection, in particular to an automatic bearing bush thickness detector which comprises a machine body, a bearing support in the front-back direction is integrally arranged on the machine body, a driving motor is fixedly installed in the middle of the machine body, and a ball screw fixedly connected with the output end of the driving motor is rotatably installed on the machine body. And the machine body is provided with a limiting mechanism for fixing a bearing bush workpiece through a ball screw. According to the utility model, the ball screw driven by the driving motor is arranged on the machine body; the limiting frame elastically supported by the reset spring is arranged on the machine body, the limiting frame is dragged through the containing table, and meanwhile the symmetrically-arranged limiting pieces are dragged, so that the bearing bush workpiece lifted to the preset height position is symmetrically pressed and limited; a controller capable of moving front and back of the bearing bush workpiece is arranged through the bearing support, and meanwhile the lifting rod and the positioner are controlled to move up and down so that positioning measurement can be conveniently conducted on the inner and outer wall faces of the bearing bush.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing bush detection, in particular to an automatic bearing bush thickness detector. Background Art

[0002] The bearing bush is the part where the sliding bearing contacts the shaft. It is very smooth and is generally made of wear-resistant materials such as bronze and anti-friction alloys. In special cases, it can be made of wood, plastic or rubber. It is also called a bushing, which is a semi-cylindrical surface in the shape of a tile.

[0003] Under the existing conditions, a high-precision thickness detection device technology for bearing production is used, such as the one disclosed in the announcement number CN215180878U. It is provided with a control plate, a roller, and a screw rod, wherein the control plate is fixedly connected with the universal joint, so that the angle of the bearing is diversified. However, the bearing workpiece is as shown in the attached manual. Figure 2 With attached Figure 3 As shown, arc-shaped measuring pieces and control pieces are used to clamp and measure the bearing workpiece, but the bearing workpiece with a smooth wall is suspended between the two pieces, and frequent angular position adjustments are required, so it is very easy to slip, and in the event of a heavy fall, it may even cause structural deformation of the bearing workpiece. Utility Model Content

[0004] The utility model aims to solve the problem that the prior art is difficult to limit the thickness of a bearing bush workpiece with a curved structure, and proposes an automatic bearing bush thickness detector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic bearing thickness detector comprises a body, a load-bearing bracket extending forward and backward is integrally arranged on the body, a driving motor is fixedly installed in the middle of the body, a ball screw fixedly connected to the output end of the driving motor is rotatably installed on the body, and a limiting mechanism for fixing the bearing workpiece is arranged on the body through the ball screw;

[0007] A long guide hole is provided in the load-bearing bracket, and a controller is movably arranged in the long guide hole. A lifting rod is fixedly connected to the controller, and a positioner for positioning the end surface of the bearing workpiece is installed on the lifting rod.

[0008] Preferably, the limiting mechanism comprises a lifting nut matched with the ball screw, a guide sleeve is integrally connected to the machine body, and a guide column slidably sleeved in the guide sleeve is fixedly mounted on the lifting nut, a lifting frame is slidably sleeved in the machine body, and a placement table for placing a bearing workpiece is bolted to the top of the lifting frame, a guide groove is opened in the machine body, and a guide block movably pulled by the guide column and used to movably pull the lifting frame is slidably sleeved in the guide groove;

[0009] The limiting mechanism also includes a limiting groove opened on the machine body, and a welded return spring and a limiting frame movably pulled by the placement table are arranged in the limiting groove, and a pin shaft on the machine body is installed with a limiting piece for pressing the limiting bearing workpiece.

[0010] Preferably, a first connecting rod is pin-connected between the guide column and the guide block, and a second connecting rod is pin-connected between the guide block and the lifting frame.

[0011] Preferably, the return spring is horizontally welded in one end of the limiting groove, and the limiting frame is slidably mounted in the limiting groove.

[0012] Preferably, a third connecting rod is pin-connected between the placement platform and the limiting frame, and a fourth connecting rod is pin-connected between the limiting frame and the limiting member.

[0013] Preferably, the guide slots are arranged in a front-to-rear direction.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model sets a ball screw driven by a driving motor on the machine body, uses a lifting nut to movably pull the guide block, so as to pull and support the lifting frame used to install the placement table, so as to adjust the height position of the bearing workpiece located on the placement table.

[0016] 2. The utility model sets a limit frame elastically supported by a return spring on the machine body, uses a placing table to pull the limit frame, and at the same time pulls the symmetrically arranged limit members, so as to symmetrically press and limit the bearing workpiece lifted to a predetermined height position.

[0017] 3. The utility model utilizes a load-bearing bracket to set a controller that can move in the front and rear positions of the bearing workpiece, and simultaneously controls the lifting rod and the positioner to move up and down, so as to facilitate positioning and measuring of the inner and outer wall surfaces of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an automatic bearing thickness detector proposed by the utility model;

[0019] Figure 2 This is a top view of an automatic bearing thickness detector proposed by the utility model;

[0020] Figure 3 The utility model is a side view of an automatic bearing thickness detector.

[0021] In the figure: 1. body; 2. load-bearing bracket; 3. driving motor; 4. ball screw; 5. lifting nut; 6. guide sleeve; 7. guide column; 8. lifting frame; 9. placing table; 10. guide groove; 11. guide block; 12. first connecting rod; 13. second connecting rod; 14. limit groove; 15. return spring; 16. limit frame; 17. third connecting rod; 18. limit piece; 19. fourth connecting rod; 20. guide long hole; 21. controller; 22. lifting rod; 23. positioner. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 3 A bearing thickness automatic detector comprises a body 1, on which a load-bearing bracket 2 extending forward and backward is integrally arranged, and a driving motor 3 is fixedly installed in the middle of the body 1, and a ball screw 4 fixedly connected to the output end of the driving motor 3 is rotatably installed on the body 1, and under the driving action of the driving motor 3, the ball screw 4 can rotate clockwise or counterclockwise, thereby driving a lifting nut 5 to reciprocate up and down.

[0024] Please refer to the instruction manual for details Figure 1 With attached Figure 2 The machine body 1 is provided with a limiting mechanism for fixing the bearing workpiece through the ball screw 4:

[0025] On the one hand, the limiting mechanism includes a lifting nut 5 matched with the ball screw 4, a guide sleeve 6 is integrally connected to the machine body 1, and a guide column 7 slidingly sleeved in the guide sleeve 6 is fixedly installed on the lifting nut 5 to guide and limit the lifting nut 5, so that the lifting nut 5 performs reciprocating lifting and lowering motion in the vertical direction along with the ball screw 4, a lifting frame 8 is slidingly sleeved in the machine body 1, and a placement table 9 for placing a bearing workpiece is bolted to the top of the lifting frame 8, a guide groove 10 is opened in the machine body 1, and a guide block 11 movably pulled by the guide column 7 and used for movably pulling the lifting frame 8 is slidingly sleeved in the guide groove 10, and the lifting nut 5 moving up and down drives the lifting frame 8 to move up and down through the guide block 11 to support the placement table 9 to move up and down to a predetermined height position;

[0026] On the other hand, the limiting mechanism also includes a limiting groove 14 provided on the machine body 1, and a welded return spring 15 and a limiting frame 16 movably pulled by the placing table 9 are provided in the limiting groove 14, and a limiting member 18 for pressing and limiting the bearing workpiece is installed on the pin shaft on the machine body 1, and the limiting member 18 is an L-shaped structure, and four limiting members 18 are symmetrically arranged, and the four limiting members 18 continuously squeeze the bearing workpiece during the process of tilting toward each other, so that the bearing workpiece moves toward the center position of the machine body 1, so as to realize the position fixation under the symmetrical clamping action;

[0027] A long guide hole 20 is provided in the load-bearing bracket 2, and a controller 21 is movably arranged in the long guide hole 20. A lifting rod 22 is fixedly connected to the controller 21, and a positioner 23 for positioning the end surface of the bearing workpiece is installed on the lifting rod 22. The lifting rod 22 is extended and retracted up and down through the controller 21, so that the positioner 23 can position the inner wall surface and the outer wall surface of the bearing workpiece respectively, thereby obtaining the numerical difference between the two positionings.

[0028] Please refer to the instruction manual for details Figure 1 A first connecting rod 12 is pin-connected between the guide column 7 and the guide block 11, and a second connecting rod 13 is pin-connected between the guide block 11 and the lifting frame 8. The lifting nut 5 moves up and down through the guide block 11 to realize the up and down movement of the lifting frame 8, so as to provide a balanced support for the placement table 9.

[0029] The return spring 15 is horizontally welded in one end of the limiting groove 14 , and the limiting frame 16 is slidably sleeved in the limiting groove 14 .

[0030] Please refer to the instruction manual for details Figure 2 A third connecting rod 17 is pin-connected between the placement table 9 and the limiting frame 16, and a fourth connecting rod 19 is pin-connected between the limiting frame 16 and the limiting member 18. The upward placement table 9 is used to pull the limiting member 18 to tilt toward each other and close, so as to symmetrically apply pressure and limit the bearing workpiece.

[0031] The guide slot 20 is arranged to extend forward and backward so as to measure the bearing workpiece twice from the front and rear sides, thereby ensuring the accuracy of the thickness measurement.

[0032] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated.

[0033] The functional principle of the utility model can be explained through the following operation modes:

[0034] Place the bearing workpiece on the placement table 9, control the drive motor 3 to start, and the output end of the drive motor 3 drives the ball screw 4 to rotate, so that the lifting nut 5 drives the guide column 7 to move vertically downward;

[0035] The guide column 7 pulls the guide block 11 to move in the guide groove 10 through the first connecting rod 12, and the guide block 11 pulls the lifting frame 8 to move vertically upward through the second connecting rod 13 to support the bearing workpiece on the placement table 9 to lift to a predetermined height position;

[0036] The placement table 9 pulls the limiting frame 16 to slide in the limiting groove 14 through the third connecting rod 17 to squeeze the return spring 15, and the moving limiting frame 16 pulls the limiting member 18 to tilt toward each other through the fourth connecting rod 19 to symmetrically limit and fix the bearing workpiece on the placement table 9 from both sides;

[0037] In the load-bearing bracket 2, the controller 21 drives the lifting rod 22 and the positioner 23 to move forward and backward, and then adjusts the extension and retraction of the lifting rod 22 according to the thickness of the bearing workpiece, and uses the positioner 23 to position the inner and outer wall surfaces of the bearing workpiece, so as to obtain the thickness value of the bearing workpiece.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic bearing thickness detector, comprising a body (1), characterized in that: The machine body (1) is integrally provided with a load-bearing bracket (2) extending forward and backward, and a driving motor (3) is fixedly mounted in the middle of the machine body (1); a ball screw (4) fixedly connected to an output end of the driving motor (3) is rotatably mounted on the machine body (1), and a limiting mechanism for fixing a bearing workpiece is provided on the machine body (1) via the ball screw (4); The load-bearing bracket (2) is provided with a long guide hole (20), and a controller (21) is movably arranged in the long guide hole (20). A lifting rod (22) is fixedly connected to the controller (21), and a positioner (23) for positioning the end face position of the bearing workpiece is installed on the lifting rod (22).

2. The automatic bearing thickness detector according to claim 1 is characterized in that: The limiting mechanism comprises a lifting nut (5) matched with the ball screw (4), the machine body (1) is integrally connected with a guide sleeve (6), and a guide column (7) slidably sleeved in the guide sleeve (6) is fixedly mounted on the lifting nut (5), a lifting frame (8) is slidably sleeved in the machine body (1), and a placement table (9) for placing a bearing workpiece is bolted to the top of the lifting frame (8), and a guide groove (10) is provided in the machine body (1), and a guide block (11) slidably sleeved in the guide groove (10) and used to movably pull the guide column (7) and to movably pull the lifting frame (8); The limiting mechanism further comprises a limiting groove (14) formed on the machine body (1), wherein a welded return spring (15) and a limiting frame (16) movably pulled by the placement table (9) are arranged in the limiting groove (14), and a limiting member (18) for pressing a limiting bearing workpiece is installed on the pin shaft on the machine body (1).

3. The automatic bearing thickness detector according to claim 2 is characterized in that: A first connecting rod (12) is pin-connected between the guide column (7) and the guide block (11), and a second connecting rod (13) is pin-connected between the guide block (11) and the lifting frame (8).

4. The automatic bearing thickness detector according to claim 2 is characterized in that: The return spring (15) is horizontally welded in one end of the limiting groove (14), and the limiting frame (16) is slidably mounted in the limiting groove (14).

5. The automatic bearing thickness detector according to claim 2 is characterized in that: A third connecting rod (17) is pin-connected between the placement platform (9) and the limiting frame (16), and a fourth connecting rod (19) is pin-connected between the limiting frame (16) and the limiting member (18).

6. The automatic bearing thickness detector according to claim 1 is characterized in that: The guide slot (20) is arranged to extend forward and backward.

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