Positioning and placing tool for spline shaft detection

Abstract

The utility model relates to a positioning placing tool for spline shaft detection, which is characterized in that the center of the upper surface of a mounting bottom plate is rotatably connected with a placing disc through a turntable bearing, two ends of the upper surface are transversely provided with sliding grooves, the center of the upper surface of the placing disc is provided with a square connecting block, and two ends of the upper surface are provided with arc-shaped limiting grooves; electromagnets are fixedly embedded in the upper ends of the connecting blocks; the positioning piece is an iron product and located over the containing disc, a square groove is formed in the lower surface of the positioning piece, a containing groove is vertically formed in the upper surface of the positioning piece, and an inner spline is arranged on the inner wall of the containing groove. The two limiting assemblies are symmetrically arranged above the two sliding grooves respectively, the lower ends of the vertical rods are in sliding connection with the sliding grooves through sliding blocks, the transverse rods are located above the vertical rods, the outer ends of the transverse rods are perpendicularly and fixedly connected with the vertical rods, threaded rods are vertically and rotatably arranged at the inner ends of the transverse rods in a threaded mode, the lower ends of the threaded rods are located over the arc-shaped limiting grooves, and limiting blocks are concentrically and fixedly arranged at the lower ends of the threaded rods; the device has the advantages of being good in applicability and convenient and fast to operate and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission shaft detection and processing, and particularly relates to a positioning and placing tooling for spline shaft detection. Background Technique

[0002] As a commonly used component in mechanical transmission, the spline shaft is mainly used to transmit mechanical torque and is commonly used in brakes and steering mechanisms. The spline shaft usually cooperates with a spline sleeve; after the spline shaft is manufactured and formed, in order to ensure that the quality requirements and working requirements are met when the subsequent spline shaft is matched with the spline sleeve, it is necessary to detect the overall dimensions of the spline shaft and the dimensions of the spline grooves on the surface of the spline shaft before leaving the factory. The traditional detection method is mainly that the detector directly measures the dimensions of the spline shaft with a micrometer. When this method is specifically used, not only is the detection efficiency low, but also due to the ineffective positioning and placing of the spline shaft, it is very easy to affect the detection accuracy due to the movement of the spline shaft during the detection process; therefore, to solve the above problems, it is necessary to develop a positioning and placing tooling for spline shaft detection with good applicability and convenient and fast operation. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a positioning and placing tooling for spline shaft detection with good applicability and convenient and fast operation.

[0004] The purpose of the utility model is realized as follows: A positioning and placing tooling for spline shaft detection includes an installation base plate, a positioning member, and a limiting component. The installation base plate is horizontally arranged as a whole, and a placing plate is rotatably connected to the center of its upper surface through a turntable bearing. Two ends of the upper surface are both horizontally provided with chutes. The center of the upper surface of the placing plate is fixedly provided with a square connecting block, and two ends of the upper surface are both provided with arc-shaped limiting grooves. A groove is provided at the upper end of the connecting block, and an electromagnet is fixedly embedded in the groove; the positioning member is made of iron and is cylindrical as a whole, located directly above the placing plate, and a square groove matching the structure of the connecting block is provided at the center of the lower surface of the positioning member. A placing groove is vertically provided at the center of the upper surface, and internal splines matching the external spline structure of the spline shaft are provided on the inner wall of the placing groove; there are two limiting components, which are symmetrically arranged above the two chutes respectively. Each limiting component includes a vertical rod and a horizontal rod. The vertical rod is vertically arranged as a whole, and its lower end is slidably connected to the chute through a slider. The horizontal rod is located above the vertical rod, and its outer end is perpendicularly and fixedly connected to the vertical rod. A screw rod is vertically and threadedly rotated through the inner end, and the lower end of the screw rod is located directly above the arc-shaped limiting groove and is concentrically and fixedly provided with a limiting block.

[0005] A label plate is fixedly provided in the middle of the front end face of the positioning member.

[0006] A secondary rotating rod is horizontally and fixedly arranged on the outer side of the upper end of the screw rod.

[0007] A reinforcing block is fixedly arranged at the connection between the upper end of the inner side surface of the vertical rod and the lower surface of the cross rod.

[0008] The lower end of the limiting block is arc-shaped, and its arc-shaped structure matches the structure of the arc-shaped limiting groove.

[0009] Advantages of the present utility model: By providing a connecting block, a groove, an electromagnet and a square groove, during use, first, through the cooperation of the square groove with the connecting block, the positioning member is positioned directly above the placing disc. Then, the energizing circuit of the electromagnet is turned on, and by using the magnetic suction force of the electromagnet after being energized on the iron positioning member, the limiting connection between the positioning member and the placing disc can be achieved. With this structure of the present utility model, according to the designed dimensions of the spline shaft to be detected, a positioning member that matches its designed dimensions can be selected for installation, increasing its applicability;

[0010] By providing a turntable bearing, the rotational connection between the placing disc and the mounting base plate can be achieved by using the turntable bearing. With this structure, during use, by applying an external force to rotate the placing disc, the connecting block, the positioning member and the spline shaft placed in the placing groove at the upper end of the positioning member can be driven to rotate. Furthermore, during the rotation of the spline shaft, the surface of the spline shaft can be inspected from multiple angles;

[0011] By providing a sliding groove, the overall horizontal position of the limiting component can be adjusted according to actual needs by using the sliding connection between the slider at the lower end of the vertical rod and the sliding groove. By providing an arc-shaped limiting groove, a vertical rod, a cross rod, a screw rod and a limiting block, and using the threaded rotational connection between the screw rod and the cross rod, during the process of rotating the screw rod by applying an external force, the vertical movement of the screw rod can be achieved. Furthermore, through the movement of the screw rod, the limiting block below it can be driven to move, so that when the lower end of the limiting block moves into the arc-shaped limiting groove, the close contact between the lower end of the limiting block and the bottom surface of the arc-shaped limiting groove is completed. Thus, through the cooperation of the two limiting components, the limiting of the placing disc can be completed, avoiding the problem that the rotation of the placing disc affects the detection operation during the subsequent measurement of the spline shaft dimensions; Generally, the present utility model has the advantages of good applicability, convenient and fast operation and use. Description of the Drawings

[0012] Figure 1 is the front view of the present utility model.

[0013] Figure 2 is the cross-sectional view of the front view of the present utility model.

[0014] Figure 3 is the top view of the connection between the mounting base plate and the placing disc in the present utility model.

[0015] In the figure: 1. Installation base plate; 11. Slide groove; 2. Positioning piece; 21. Square groove; 22. Placing groove; 23. Memo board; 3. Limiting component; 31. Vertical rod; 32. Horizontal rod; 33. Screw; 34. Limiting block; 35. Auxiliary rotating rod; 36. Reinforcing block; 4. Placing plate; 41. Connecting block; 42. Arc-shaped limiting groove; 43. Groove; 44. Electromagnet. Detailed implementation mode

[0016] The following further describes the present utility model in conjunction with the accompanying drawings.

[0017] Embodiment: As shown in Figure 1 , Figure 2 , Figure 3 , a positioning and placing tool for spline shaft detection includes an installation base plate 1, a positioning piece 2 and a limiting component 3. The installation base plate 1 is horizontally arranged as a whole. The center of its upper surface is rotatably connected to a placing plate 4 through a turntable bearing. Slide grooves 11 are horizontally arranged at both ends of the upper surface. A square connecting block 41 is fixedly arranged at the center of the upper surface of the placing plate 4. Arc-shaped limiting grooves 42 are arranged at both ends of the upper surface. A groove 43 is arranged at the upper end of the connecting block 41, and an electromagnet 44 is fixedly embedded in the groove 43. The positioning piece 2 is made of iron and is cylindrical as a whole. It is located directly above the placing plate 4. A square groove 21 matching the structure of the connecting block 41 is arranged at the center of the lower surface of the positioning piece 2. A placing groove 22 is vertically arranged at the center of the upper surface. Internal splines matching the external spline structure of the spline shaft are arranged on the inner wall of the placing groove 22. There are two limiting components 3, which are symmetrically arranged above the two slide grooves 11 respectively. It includes a vertical rod 31 and a horizontal rod 32. The vertical rod 31 is vertically arranged as a whole. Its lower end is slidably connected to the slide groove 11 through a slider. The horizontal rod 32 is located above the vertical rod 31. Its outer end is perpendicularly and fixedly connected to the vertical rod 31. A screw 33 is vertically threaded and rotated through the inner end. The lower end of the screw 33 is located directly above the arc-shaped limiting groove 42 and is concentrically and fixedly provided with a limiting block 34.

[0018] A memo board 23 is fixedly arranged in the middle of the front end face of the positioning piece 2. An auxiliary rotating rod 35 is horizontally and fixedly arranged on the outer side of the upper end of the screw 33. The auxiliary rotating rod 35 can be used to increase the convenience of the rotation operation of the screw 33. A reinforcing block 36 is fixedly arranged at the connection between the upper end of the inner side face of the vertical rod 31 and the lower surface of the horizontal rod 32. The reinforcing block 36 can be used to increase the connection stability between the vertical rod 31 and the horizontal rod 32. The lower end of the limiting block 34 is arc-shaped, and its arc structure matches the structure of the arc-shaped limiting groove 42.

[0019] When the utility model is in use, first, according to the design dimensions of the spline shaft to be detected, a positioning member 2 that matches its design dimensions is selected. Then, through the cooperation of the square groove 21 with the connecting block 41, the positioning member 2 is positioned directly above the placement disk 4. After that, the energizing circuit of the electromagnet 44 is turned on. By using the magnetic attraction of the energized electromagnet 44 on the iron positioning member 2, the limiting connection between the positioning member 2 and the placement disk 4 can be achieved. With this structure of the utility model, a positioning member 2 that matches the design dimensions can be selected for installation according to the design dimensions of the spline shaft to be detected, increasing its applicability. After the limiting installation of the positioning member 2 is completed, by using the cooperation between the internal spline on the inner wall of the placement groove 22 and the external spline on the surface of the spline shaft, the spline shaft to be detected is vertically placed in the placement groove 22. Thus, while the spline shaft is positioned and placed in the utility model, the perpendicularity of the spline shaft and the dimensions of the spline grooves on the surface of the spline shaft can be preliminarily detected and verified by observing the connection state of the internal spline and the external spline. Then, by applying an external force to rotate the placement disk 4, the rotation of the placement disk 4 drives the connecting block 41, the positioning member 2, and the spline shaft placed inside the placement groove 22 at the upper end of the positioning member 2 to rotate. Furthermore, during the rotation of the spline shaft, the surface of the spline shaft can be inspected from multiple angles. Finally, by using the sliding connection between the slider at the lower end of the vertical rod 31 and the sliding groove 11, the overall lateral position of the limiting component 3 is adjusted by applying an external force, so that the limiting block 34 moves directly above the arc-shaped limiting groove 42. After that, by applying an external force to rotate the screw rod 33, at this time, by using the threaded connection between the screw rod 33 and the cross rod 32, a vertical movement can be carried out while the screw rod 33 rotates. Furthermore, the movement of the screw rod 33 drives the limiting block 34 below it to move, so that the lower end of the limiting block 34 moves into the arc-shaped limiting groove 42 and at the same time, the lower end of the limiting block 34 is in close contact with the bottom surface of the arc-shaped limiting groove 42. Thus, the limiting of the placement disk 4 can be completed through the cooperation of the two limiting components 3. With this structure, the problem that the detection operation is affected due to the rotation of the placement disk 4 during the subsequent measurement of the spline shaft dimensions can be avoided. Generally, the utility model has the advantages of good applicability, convenient and fast operation and use.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the specific implementation manners of the present invention can still be modified or equivalently replaced. Any modification or equivalent replacement without departing from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims

1. A positioning and placing tool for detecting a spline shaft, comprising a mounting base plate (1), a positioning member (2) and a limit assembly (3), characterized in that: The mounting base plate (1) is arranged horizontally as a whole, and a placement plate (4) is rotatably connected to the center of its upper surface via a turntable bearing, and slide grooves (11) are arranged horizontally at both ends of the upper surface. A square connection block (41) is fixedly arranged at the center of the upper surface of the placement plate (4), and arc-shaped limit grooves (42) are arranged at both ends of the upper surface. A groove (43) is arranged at the upper end of the connection block (41), and an electromagnet (44) is fixedly embedded in the groove (43). The positioning member (2) is made of iron and is cylindrical in shape as a whole. It is located directly above the placement plate (4), and a square groove (21) matching the structure of the connection block (41) is arranged at the center of the lower surface of the positioning member (2). The upper surface A placement groove (22) is vertically arranged at the center, and the inner wall of the placement groove (22) is provided with an internal spline that matches the external spline structure of the spline shaft; there are two limit assemblies (3), which are symmetrically arranged above the two slide grooves (11), and include a vertical rod (31) and a horizontal rod (32); the vertical rod (31) is vertically arranged as a whole, and its lower end is slidably connected to the slide groove (11) through a slider; the horizontal rod (32) is located above the vertical rod (31), and its outer end is vertically fixedly connected to the vertical rod (31); a screw rod (33) is vertically threaded and rotatably penetrated at the inner end, and the lower end of the screw rod (33) is located directly above the arc-shaped limit groove (42), and a limit block (34) is concentrically fixedly arranged.

2. A positioning and placing tool for spline shaft detection according to claim 1, characterized in that: A note card (23) is fixedly arranged in the middle of the front end surface of the positioning member (2).

3. A positioning and placing tool for spline shaft detection according to claim 1, characterized in that: An auxiliary rotating rod (35) is laterally fixedly disposed on the outer side of the upper end of the screw rod (33).

4. A positioning and placing tool for spline shaft detection according to claim 1, characterized in that: A reinforcement block (36) is fixedly provided at the connection between the upper end of the inner side surface of the vertical rod (31) and the lower surface of the horizontal rod (32).

5. A positioning and placing tool for spline shaft inspection according to claim 1, characterized in that: The lower end of the limit block (34) is arc-shaped, and its arc-shaped structure matches the structure of the arc-shaped limit groove (42).

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