Clamp for detecting precision of cardan shaft

Abstract

The utility model relates to the technical field of cardan shaft detection equipment, in particular to a cardan shaft precision detection clamp which comprises a bottom plate, a plurality of rubber blocks are fixedly connected to the bottom of the bottom plate, a supporting frame is fixedly connected to the top of the bottom plate, a rectangular hole is formed in one end of the top of the supporting frame, and a fixing frame is fixedly connected to the top of the other end of the supporting frame. The tops of the two ends of the supporting frame are each provided with a clamping mechanism. According to the device, the clamping mechanisms are arranged at the tops of the two ends of the supporting frame, a motor is started and used for driving a first screw rod to rotate, so that a moving plate moves to a proper position, and an L-shaped plate and a rubber pad move by rotating a rotating rod and two second screw rods; the universal shafts can be conveniently clamped and fixed through the moved L-shaped plates and rubber pads, and the universal shafts of different specifications can be clamped and fixed through the clamping mechanism by adjusting the positions of the moving plates, the L-shaped plates and the rubber pads.

Description

Technical Field

[0001] The utility model relates to the technical field of universal shaft detection equipment, in particular to a fixture for precision detection of universal shafts. Background Technique

[0002] A universal shaft is a part with angular compensation ability, high transmission efficiency and compact structure. Its main functions are buffering, shock absorption and improving the dynamic performance of the shafting. Common structural forms of universal shafts include cross-shaft type, ball cage type and ball fork type, etc. After the universal shaft is processed, it generally needs to be subjected to precision detection. In order to facilitate the detection operation of the staff, a fixture is required to clamp and position the universal shaft. However, the existing fixture for detecting universal shafts is not convenient for adjustment, making it inconvenient to clamp and position universal shafts of different sizes, increasing the limitations of the fixture's use. At the same time, in order to provide sufficient operating space for the staff, the fixture needs to be convenient for adjusting the angle of the universal shaft. However, the existing fixture for detecting universal shafts is not convenient for adjusting the angle of the universal shaft, and its practicability is poor. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fixture for precision detection of universal shafts to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution:

[0005] A fixture for precision detection of universal shafts, including a bottom plate. A plurality of rubber blocks are fixedly connected to the bottom of the bottom plate. A support frame is fixedly connected to the top of the bottom plate. A rectangular hole is opened at one end of the top of the support frame. A fixed frame is fixedly connected to the top of the other end of the support frame. Clamping mechanisms are arranged at the tops of both ends of the support frame. Two displacement mechanisms are arranged in a supporting manner at one end of the support frame. A pushing mechanism is arranged at the top of one end of the bottom plate.

[0006] Furthermore, the clamping mechanism includes a U-shaped plate. A screw rod I is rotatably connected inside the U-shaped plate. A motor is fixedly connected to one side of the U-shaped plate. The output end of the motor penetrates through the side wall of the U-shaped plate and is fixedly connected to one end of the screw rod I. A moving plate is screwed on the outer side wall of the screw rod I. An arc-shaped notch is opened at the middle position of the top of the moving plate. Sliding grooves I are opened at the tops of both ends of the moving plate. A communication hole is opened on the inner side wall of one of the sliding grooves I. A rotating hole is opened on the moving plate, and the rotating hole communicates with the two sliding grooves I. A rotating rod is rotatably connected inside the rotating hole. Screw rods II are fixedly connected to both ends of the rotating rod. One end of the screw rod II passes through the corresponding communication hole and extends to the outside of the moving plate. A slider I is screwed on the outer side of the screw rod II. The slider I is slidably connected to the corresponding sliding groove I. An L-shaped plate is fixedly connected to the top of the slider I. The top of the fixed frame is fixedly connected to the bottom of the corresponding U-shaped plate.

[0007] Preferably, one side of the C-shaped plate is fixedly connected with a rectangular shell, and the motor is located inside the rectangular shell.

[0008] Preferably, rubber pads are fixedly connected to the adjacent sides of the two L-shaped plates, and the width of the L-shaped plates is the same as that of the rubber pads.

[0009] Preferably, a twisting block is arranged at one end of the moving plate, and one end of the twisting block is fixedly connected to one end of the corresponding screw rod two.

[0010] Furthermore, the displacement mechanism includes a fixing plate, the bottom of the fixing plate is fixedly connected to the top of the support frame, a second sliding groove is opened at the top of the fixing plate, a second sliding block is slidably connected inside the second sliding groove, and a fixing seat is fixedly connected to the top of the second sliding block. A connecting block is rotatably connected inside the fixing seat, and the top of the connecting block is fixedly connected to the corresponding C-shaped plate.

[0011] Furthermore, the pushing mechanism includes a first rotating seat, the bottom of the first rotating seat is fixedly connected to the top of the bottom plate, a first rotating block is rotatably connected inside the first rotating seat, one side of the first rotating block is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to a second rotating block. The outer side wall of the second rotating block is rotatably connected to a second rotating seat, and the top of the second rotating seat is fixedly connected to the corresponding C-shaped plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. By arranging clamping mechanisms at the tops of both ends of the support frame, starting the motor, driving the screw rod one to rotate by the motor, so that the moving plate moves to an appropriate position, and by rotating the rotating rod and the two screw rods two, the L-shaped plates and the rubber pads move, and then the moved L-shaped plates and rubber pads are used to clamp and fix the universal shaft. By adjusting the positions of the moving plate, the L-shaped plates and the rubber pads, the clamping mechanism can clamp and fix universal shafts of different specifications;

[0014] 2. By arranging a pushing mechanism at the top of one end of the bottom plate, starting the electric push rod, using the output end of the electric push rod to push the second rotating seat and the second rotating block to move, and the first rotating block and the second rotating block rotate. Then, by using the second sliding block, the fixing seat, the connecting block and the second sliding groove in cooperation to guide and limit one end of a clamping mechanism, so that the corresponding clamping mechanism rotates and moves, so that one end of the corresponding universal shaft is bent, and then it is convenient to detect the accuracy of the universal shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 It is a schematic diagram of the positional relationship between the bottom plate and the support frame in the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the clamping mechanism in the present utility model;

[0018] Figure 4 It is a schematic diagram of the positional relationship between the L-shaped plate and the rubber pad in the present utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the moving plate in the present utility model;

[0020] Figure 6 It is a schematic diagram of the structure of the shifting mechanism in the present utility model;

[0021] Figure 7 It is a schematic diagram of the structure of the pushing mechanism in the present utility model.

[0022] In the figure: 100, bottom plate; 110, rubber block; 120, support frame; 121, rectangular hole; 130, fixed frame; 200, clamping mechanism; 210, C-shaped plate; 220, first screw; 230, motor; 240, rectangular shell; 250, moving plate; 251, arc-shaped notch; 252, first chute; 253, rotating hole; 254, communication hole; 260, rotating rod; 261, second screw; 262, twisting block; 270, first slider; 280, L-shaped plate; 290, rubber pad; 300, shifting mechanism; 310, fixing plate; 311, second chute; 320, second slider; 330, fixed seat; 340, connecting block; 400, pushing mechanism; 410, first rotating seat; 420, first rotating block; 430, electric push rod; 440, second rotating seat; 450, second rotating block. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-7, in the embodiment of the present utility model, a fixture for precision detection of a universal shaft includes a bottom plate 100. A plurality of rubber blocks 110 are fixedly connected to the bottom of the bottom plate 100. A support frame 120 is fixedly connected to the top of the bottom plate 100. A rectangular hole 121 is provided at one end of the top of the support frame 120. A fixed frame 130 is fixedly connected to the top of the other end of the support frame 120. Clamping mechanisms 200 are arranged at the tops of both ends of the support frame 120. Two displacement mechanisms 300 are arranged in a matching manner at one end of the support frame 120. A pushing mechanism 400 is arranged at the top of one end of the bottom plate 100.

[0025] Specifically, the two clamping mechanisms 200 are used to clamp and fix both ends of the universal shaft, and can fix universal shafts of different specifications and sizes. Then, the displacement mechanism 300 and the pushing mechanism 400 are used in cooperation to facilitate the adjustment of the position and deflection angle of one clamping mechanism 200, so that one end of the universal shaft is bent, and thus it is convenient to perform precision detection on the universal shaft, making the use more convenient. Embodiment 1

[0026] As Figures 3-5 shown, in this embodiment, the clamping mechanism 200 includes a U-shaped plate 210. A first screw 220 is rotatably connected inside the U-shaped plate 210. A motor 230 is fixedly connected to one side of the U-shaped plate 210. The output end of the motor 230 penetrates the side wall of the U-shaped plate 210 and is fixedly connected to one end of the first screw 220. A moving plate 250 is screwed on the outer side wall of the first screw 220. An arc-shaped notch 251 is provided at the middle position of the top of the moving plate 250. First chutes 252 are provided at the tops of both ends of the moving plate 250. A communication hole 254 is provided on the inner side wall of one of the first chutes 252. A rotating hole 253 is provided on the moving plate 250, and the rotating hole 253 communicates with the two first chutes 252. A rotating rod 260 is rotatably connected inside the rotating hole 253. Second screws 261 are fixedly connected to both ends of the rotating rod 260. One end of the second screw 261 passes through the corresponding communication hole 254 and extends to the outside of the moving plate 250. A first slider 270 is screwed on the outer side of the second screw 261. The first slider 270 is slidably connected to the corresponding first chute 252. An L-shaped plate 280 is fixedly connected to the top of the first slider 270. The top of the fixed frame 130 is fixedly connected to the bottom of the corresponding U-shaped plate 210. Rubber pads 290 are fixedly connected to the adjacent sides of the two L-shaped plates 280. The width of the L-shaped plate 280 is the same as the width of the rubber pad 290.

[0027] In this embodiment, by starting the motor 230, the motor 230 drives the first screw 220 to rotate, so that the moving plate 250 moves to an appropriate position. One end of the universal shaft is placed at the position of the arc-shaped notch 251, and by rotating the rotating rod 260 and the two second screws 261, the L-shaped plate 280 and the rubber pad 290 move, and then the moved L-shaped plate 280 and rubber pad 290 are used to clamp and fix the universal shaft. By adjusting the positions of the moving plate 250, the L-shaped plate 280 and the rubber pad 290, the clamping mechanism 200 can clamp and fix universal shafts of different specifications.

[0028] As Figures 3-5 shown, in this embodiment, a rectangular shell 240 is fixedly connected to one side of the C-shaped plate 210, the motor 230 is located inside the rectangular shell 240, a twisting block 262 is arranged at one end of the moving plate 250, and one end of the twisting block 262 is fixedly connected to one end of the corresponding second screw 261.

[0029] During specific implementation, the rectangular shell 240 is used to shield and protect the motor 230, and the twisting block 262 is used to facilitate the rotation of the second screw 261, making the use more convenient. Embodiment Two

[0030] On the basis of Embodiment One, in order to facilitate the bending of the fixed universal shaft, so as to facilitate the accuracy detection of the universal shaft.

[0031] As Figures 6-7 shown, in this embodiment, the displacement mechanism 300 includes a fixing plate 310, the bottom of the fixing plate 310 is fixedly connected to the top of the support frame 120, a second chute 311 is opened at the top of the fixing plate 310, a second slider 320 is slidably connected inside the second chute 311, and a fixing seat 330 is fixedly connected to the top of the second slider 320. A connecting block 340 is rotatably connected inside the fixing seat 330, and the top of the connecting block 340 is fixedly connected to the corresponding C-shaped plate 210. The pushing mechanism 400 includes a first rotating seat 410, the bottom of the first rotating seat 410 is fixedly connected to the top of the bottom plate 100, a first rotating block 420 is rotatably connected inside the first rotating seat 410, an electric push rod 430 is fixedly connected to one side of the first rotating block 420, and an output end of the electric push rod 430 is fixedly connected to a second rotating block 450. A second rotating seat 440 is rotatably connected to the outer side wall of the second rotating block 450, and the top of the second rotating seat 440 is fixedly connected to the corresponding C-shaped plate 210.

[0032] In specific implementation, by starting the electric push rod 430, the output end of the electric push rod 430 is used to push the second rotating seat 440 and the second rotating block 450 to move, and the first rotating block 420 and the second rotating block 450 rotate. The slider two 320, the fixed seat 330, the connecting block 340 and the second chute 311 are used in cooperation to guide and limit one end of a clamping mechanism 200, so that the corresponding clamping mechanism 200 rotates and moves, thereby bending one end of the corresponding universal shaft, and further facilitating the precision detection of the universal shaft.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fixture for detecting the accuracy of a universal joint shaft, comprising a base plate (100), characterized in that: A plurality of rubber blocks (110) are fixedly connected to the bottom of the bottom plate (100), a support frame (120) is fixedly connected to the top of the bottom plate (100), and a rectangular hole (121) is provided at one end of the top of the support frame (120), a fixing frame (130) is fixedly connected to the top of the other end of the support frame (120), a clamping mechanism (200) is provided at the top of both ends of the support frame (120), two shifting mechanisms (300) are matched at one end of the support frame (120), and a pushing mechanism (400) is provided at the top of one end of the bottom plate (100).

2. The universal joint shaft accuracy detection fixture according to claim 1, characterized in that: The clamping mechanism (200) comprises a shaped plate (210), the shaped plate (210) is internally rotatably connected to a screw rod (220), a motor (230) is fixedly connected to one side of the shaped plate (210), and the output end of the motor (230) passes through the side wall of the shaped plate (210) and is fixedly connected to one end of the screw rod (220), the outer wall of the screw rod (220) is screwed and connected to a movable plate (250), and an arc-shaped notch (251) is provided at the middle position of the top of the movable plate (250), the tops of both ends of the movable plate (250) are provided with a slide groove (252), and an inner wall of the slide groove (252) is provided with a connecting hole (254), and a rotating shaft is provided on the movable plate (250). The movable hole (253) is connected to the two slide grooves (252). The rotating hole (253) is internally connected to a rotating rod (260), and both ends of the rotating rod (260) are fixedly connected to screw rods (261). One end of the screw rod (261) passes through the connecting hole (254) at the corresponding position and extends to the outside of the movable plate (250). The outer side of the screw rod (261) is screwed and connected to a slider (270), and the slider (270) is slidably connected to the slide grooves (252) at the corresponding position. The top of the slider (270) is fixedly connected to an L-shaped plate (280), and the top of the fixed frame (130) is fixedly connected to the bottom of the L-shaped plate (210) at the corresponding position.

3. The universal joint shaft accuracy detection fixture according to claim 2, characterized in that: A rectangular shell (240) is fixedly connected to one side of the shaped plate (210), and the motor (230) is located inside the rectangular shell (240).

4. The fixture for detecting the accuracy of a universal joint according to claim 2, characterized in that: A rubber pad (290) is fixedly connected to one adjacent side of the two L-shaped plates (280), and the width of the L-shaped plates (280) is the same as the width of the rubber pad (290).

5. The fixture for detecting the accuracy of a universal joint according to claim 2, characterized in that: A twisting block (262) is provided at one end of the movable plate (250), and one end of the twisting block (262) is fixedly connected to one end of the second screw rod (261) at a corresponding position.

6. The universal joint shaft accuracy detection fixture according to claim 1, characterized in that: The shift mechanism (300) comprises a fixed plate (310), the bottom of the fixed plate (310) is fixedly connected to the top of the support frame (120), the top of the fixed plate (310) is provided with a second slide groove (311), the interior of the second slide groove (311) is slidably connected to a second slider (320), and the top of the second slider (320) is fixedly connected to a fixed seat (330), the interior of the fixed seat (330) is rotatably connected to a connecting block (340), and the top of the connecting block (340) is fixedly connected to the shaped plate (210) at a corresponding position.

7. The fixture for detecting the accuracy of a universal joint according to claim 1, characterized in that: The pushing mechanism (400) comprises a rotating seat 1 (410), the bottom of the rotating seat 1 (410) is fixedly connected to the top of the base plate (100), the interior of the rotating seat 1 (410) is rotatably connected to a rotating block 1 (420), one side of the rotating block 1 (420) is fixedly connected to an electric push rod (430), and the output end of the electric push rod (430) is fixedly connected to a rotating block 2 (450), the outer side wall of the rotating block 2 (450) is rotatably connected to a rotating seat 2 (440), and the top of the rotating seat 2 (440) is fixedly connected to a shaped plate (210) at a corresponding position.

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