A device for detecting the angle of a tilt slot in a constant velocity joint

Abstract

The utility model discloses a constant velocity universal joint inner chute angle detection device, including base, fixed plate, measuring mechanism, product fixed establishment and displacement mechanism, fixed plate is fixed perpendicularly on the base, and measuring mechanism is installed on the fixed plate, and measuring mechanism includes dial gauge, displacement mechanism is installed on the base, and product fixed establishment is located on displacement mechanism, and product fixed establishment follows displacement mechanism and makes position movement in horizontal direction, product fixed establishment is used for positioning and locking the product of detecting, measuring mechanism is used for measuring the inner chute angle change of the product of detecting locked on product fixed establishment, the utility model provides a constant velocity universal joint inner chute angle detection device, and this detection device is simple to operate, and the detection efficiency is high, and the stability is good, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the technical field of universal joint testing equipment, and more specifically to a device for detecting the angle of the inner inclined groove of a constant velocity universal joint. Background Technology

[0002] Currently, in skew-groove universal joints, the steel balls are constrained by a cage to move within axially distributed tracks in the bell-shaped shell and star-shaped sleeve. The skew groove of the bell-shaped shell must conform to the angle and distance distribution of the raceways to ensure smooth rolling of the steel balls within the bell-shaped shell and efficient force transmission. Therefore, the skew groove angle of the bell-shaped shell is crucial. Existing manufacturing processes use straight-rail machine tools, along with angle plates and backing plates, to ensure the dimensional accuracy of the skew groove angle of the bell-shaped shell.

[0003] Traditional methods for detecting the angle of the internal inclined grooves in universal joints use coordinate measuring machines (CMMs) to measure the distance from the center point of the six groove intersections to the opening of the bell-shaped shell. However, using CMMs in product processing is too slow, or the angle dimension is not measured during subsequent production after tooling development verification. In the prior art, such as the utility model application with application number 201620810114.7, a bell-shaped shell measuring tool is disclosed. This tool includes a measuring base with a steel ball fixing plate at its top. Corresponding threaded holes are formed on the top of the measuring base and the steel ball fixing plate, and fastening bolts are rotatably fixed within these threaded holes. The measuring base and the steel ball fixing plate are fixedly connected by these bolts. A measuring body is provided on the measuring base, and the measuring body and the steel ball fixing plate are fixed together by hexagonal head screws. This bell-shaped shell measuring tool, through the combination of standard bearing steel balls and the measuring body, makes the measurement of the three-dimensional dimensions of the measured part simpler and faster. However, due to factors such as tooling wear, incorrect use, and incorrect debugging, the center distance of the product may not meet the requirements, ultimately affecting the product quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a constant velocity universal joint internal inclined groove angle detection device. This detection device is simple to operate, has high detection efficiency, good stability, and long service life.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a constant velocity universal joint internal inclined groove angle detection device, the detection device including a base, a fixing plate, a measuring mechanism, a product fixing mechanism and a displacement mechanism; the fixing plate is vertically fixed on the base, the measuring mechanism is installed on the fixing plate, and the measuring mechanism includes a dial indicator; the displacement mechanism is installed on the base, the product fixing mechanism is located on the displacement mechanism, and the product fixing mechanism moves horizontally following the displacement mechanism; the product fixing mechanism is used to position and lock the product to be tested; the measuring mechanism is used to measure the change of the internal inclined groove angle of the product to be tested locked on the product fixing mechanism.

[0006] Furthermore, the measuring mechanism includes a first fixed frame, and the dial indicator is connected to the fixed plate through the first fixed frame. The position of the first fixed frame on the fixed plate is adjustable in the vertical direction.

[0007] Furthermore, the measuring mechanism also includes a second fixing frame connected to the fixing plate. The second fixing frame is arranged parallel to the bottom of the first fixing frame, and its position on the fixing plate is adjustable in the vertical direction. A connecting piece is installed on the second fixing frame. One end of the connecting piece is connected to the second fixing frame through a rotating shaft, and the other end of the connecting piece is connected to the measuring piece.

[0008] Furthermore, an adjustment groove is provided at one end of the connecting piece that is connected to the measuring piece, and one end of the measuring piece is connected to the adjustment groove by a screw. A measuring contact is provided at the other end of the measuring piece, and the measuring contact contacts the product to be tested. The measuring head of the dial indicator contacts the connecting piece to achieve measurement.

[0009] Furthermore, the product fixing mechanism includes a first fixing mechanism and a second fixing mechanism, both of which are mounted on the displacement mechanism; the second fixing mechanism includes a fixing adjustment mechanism, through which relative movement between the second fixing mechanism and the first fixing mechanism can be realized.

[0010] Furthermore, the first fixing mechanism includes a first connecting block, a first mounting plate, a measuring rod, and a first probe arm. The first connecting block is used to connect the displacement mechanism, the first mounting plate is fixed on the first connecting block, and the first probe arm and the measuring rod are fixed on the first mounting plate.

[0011] Further, the second fixing mechanism includes a second connecting block, a second mounting plate, and a second probe arm; the fixing adjustment mechanism includes an adjusting slider, an adjusting slide rail, an adjusting connecting block, an adjusting screw, an adjusting block, and an adjusting handwheel; the second probe arm is fixed to the second mounting plate, the second mounting plate is fixed to the second connecting block, and the second connecting block is connected to the adjusting slider and the adjusting block; one end of the adjusting screw passes through the adjusting block, and the other end is connected to the adjusting handwheel; the adjusting slider moves on the adjusting slide rail, the adjusting slide rail is fixed to the adjusting connecting block, and the adjusting connecting block is connected to the displacement mechanism.

[0012] Furthermore, the first probe arm in the first fixing mechanism and the second probe arm in the second fixing mechanism are both inclined, and the inclination direction is the same.

[0013] Furthermore, the displacement mechanism includes a displacement slide rail and a displacement slider. The displacement slide rail is fixed to the base, and the displacement slider moves horizontally on the displacement slide rail. The displacement slider is connected to the product fixing mechanism to realize the horizontal position adjustment of the product fixing mechanism.

[0014] The beneficial effects of this utility model are: compared with the prior art, the constant velocity universal joint inner inclined groove angle detection device provided by this utility model has a simple detection method, is easy to use, has high detection efficiency, and good stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the detection device provided by this utility model in its usage state.

[0016] Figure 2 This is a side view of the detection device provided by this utility model in its usage state.

[0017] Figure 3 A front structural diagram of the detection device provided by this utility model in its usage state.

[0018] Figure 4 for Figure 3 Partial sectional view along plane AA.

[0019] Figure 5 A three-dimensional structural diagram of the detection device provided by this utility model.

[0020] Figure 6 This is a side view of the detection device provided by this utility model.

[0021] Figure 7 This is a top view of the detection device provided by this utility model.

[0022] Figure 8 This is a schematic diagram of the measuring mechanism in the detection device provided by this utility model.

[0023] Figure 9 A schematic diagram of the front structure of the product to be tested in the testing device provided by this utility model.

[0024] Figure 10 This is a top view of the product to be tested in the testing device provided by this utility model.

[0025] The components are as follows: 1-base; 2-fixed plate; 3-measuring mechanism; 301-first fixed frame; 302-second fixed frame; 303-dial indicator; 304-connecting piece; 305-adjusting groove; 306-measuring piece; 307-measuring contact; 308-rotating shaft; 309-measuring head; 4-product fixing mechanism; 401-first connecting block; 402-first mounting plate; 403-second mounting plate; 404-second connecting block; 405-adjusting slider; 406-adjusting slide rail; 407-adjusting connecting block; 408-adjusting screw; 409-adjusting handwheel; 410-adjusting block; 411-first probe arm; 412-measuring top rod; 413-second probe arm; 5-displacement mechanism; 501-displacement slide rail; 502-displacement slider; 6-product to be tested; 601-inner inclined groove. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] Example like Figures 1-10 As shown, a constant velocity universal joint internal inclined groove angle detection device includes a base 1, a fixing plate 2, a measuring mechanism 3, a product fixing mechanism 4, and a displacement mechanism 5. The fixing plate 2 is vertically fixed on the base 1, and the measuring mechanism 3 is mounted on the fixing plate 2, including a dial indicator 303. The displacement mechanism 5 is mounted on the base 1, and the product fixing mechanism 4 is disposed on the displacement mechanism 5, moving horizontally along with the displacement mechanism 5. The product fixing mechanism 4 is used to position and lock the product 6 to be tested. The measuring mechanism 3 is used to measure the angle change of the internal inclined groove 601 of the product 6 locked on the product fixing mechanism 4.

[0028] like Figure 1 and 8As shown, the measuring mechanism 3 includes a first fixed frame 301, through which the dial indicator 303 is connected to the fixed plate 2. The first fixed frame 301 is vertically adjustable on the fixed plate 2; the position of the dial indicator 303 can be adjusted according to the height of different models of products 6 to be tested. The measuring mechanism 3 also includes a second fixed frame 302 connected to the fixed plate 2. The second fixed frame 302 is arranged parallel to the bottom of the first fixed frame 301, and its vertical position is adjustable on the fixed plate 2. A connecting piece 304 is installed on the second fixed frame 302. One end of the connecting piece 304 is connected to the second fixed frame 302 via a rotating shaft 308, and the other end is connected to a measuring piece 306; the position of the measuring piece 306 can be adjusted according to the height of different models of products 6 to be tested.

[0029] In this embodiment, an adjustment groove 305 is provided at one end of the connecting piece 304 that connects to the measuring piece 306. One end of the measuring piece 306 is connected to the adjustment groove 305 by a screw. The design of the adjustment groove 305 allows for fine adjustment of the horizontal position of the measuring piece 306 to accommodate products 6 of different sizes to be inspected. A measuring contact 307 is provided at the other end of the measuring piece 306. The measuring contact 307 contacts the product 6 to be inspected, and the measuring head 309 of the dial indicator 303 contacts the connecting piece 304 to perform the measurement. The measuring contact 307 is made of high-hardness wear-resistant or high-hardness alloy steel to extend the service life of the inspection tool. When the measuring mechanism 3 is working, the product to be tested 6 is placed below the measuring contact 307. If the product to be tested 6 is tilted, the measuring contact 307 will convert the tilt angle into an up-down displacement and transmit it to the connecting piece 304. The connecting piece 304, under the action of the rotating shaft 308, transmits the change to the measuring head 309 of the dial indicator 303. The tilt status of the product to be tested 6 can be quantitatively determined based on the value read on the dial indicator 303.

[0030] like Figure 1 , 4 As shown in Figure 5, the product fixing mechanism 4 includes a first fixing mechanism and a second fixing mechanism, both of which are mounted on the displacement mechanism 5. The second fixing mechanism includes a fixing adjustment mechanism, which enables relative movement between the second fixing mechanism and the first fixing mechanism. The fixing adjustment mechanism adjusts the relative distance between the first fixing mechanism and the second fixing mechanism to lock and unlock the product 6 to be tested.

[0031] In this embodiment, the first fixing mechanism includes a first connecting block 401, a first mounting plate 402, a measuring rod 412, and a first probe arm 411. The first connecting block 401 is used to connect the displacement mechanism 5, so that the first fixing mechanism moves horizontally under the drive of the displacement mechanism 5. The first mounting plate 402 is fixed to the first connecting block 401, and the first probe arm 411 and the measuring rod 412 are fixed to the first mounting plate 402.

[0032] In this embodiment, the second fixing mechanism includes a second connecting block 404, a second mounting plate 403, and a second probe arm 413; the fixing adjustment mechanism includes an adjusting slider 405, an adjusting slide rail 406, an adjusting connecting block 407, an adjusting screw 408, an adjusting block 410, and an adjusting handwheel 409; the second probe arm 413 is fixed to the second mounting plate 403, the second mounting plate 403 is fixed to the second connecting block 404, and the second connecting block 404 is connected to the adjusting slider 405 and the adjusting block 410; one end of the adjusting screw 408 passes through the adjusting block 410, and the other end is connected to the adjusting handwheel 409; the adjusting slider 405 moves on the adjusting slide rail 406, the adjusting slide rail 406 is fixed to the adjusting connecting block 407, and the adjusting connecting block 407 is connected to the displacement mechanism 5. The first probe arm 411 in the first fixing mechanism and the second probe arm 413 in the second fixing mechanism are both inclined in the same direction.

[0033] The specific working method of the above-mentioned fixed adjustment mechanism is as follows: By rotating the adjustment handwheel 409, the adjustment screw 408 is driven to rotate relative to the adjustment block 410. Since the adjustment block 410 is fixedly connected to the second connecting block 404, and one end of the adjustment screw 408 is fixed on the first connecting block 401, when the adjustment screw 408 rotates, the adjustment block 410 will drive the second connecting block 404 to shift relative to the first fixed mechanism. During testing, the product to be tested 6 is placed on the product fixing mechanism 4, and the corresponding inner inclined groove 601 on the product to be tested 6 is aligned with the first probe arm 411 and the second probe arm 413. Then, driven by the adjustment screw 408, the second fixing mechanism and the first fixing mechanism lock the product to be tested 6.

[0034] In this embodiment, the displacement mechanism 5 includes a displacement slide rail 501 and a displacement slider 502. The displacement slide rail 501 is fixed on the base 1, and the displacement slider 502 moves horizontally on the displacement slide rail 501. The displacement slider 502 is connected to the product fixing mechanism 4 to realize the horizontal position adjustment of the product fixing mechanism 4.

[0035] In this embodiment, the working steps of the detection device are as follows: 1) Use products that meet the coordinate measuring machine's angle standards as standard calibration parts for testing other products, and properly label the standard parts; 2) Before measuring the product 6 to be tested, the testing device is zeroed using a standard calibration piece. The standard calibration piece is placed on the product fixing mechanism 4. The first probe arm 411 and the second probe arm 413 are respectively embedded in the opposite side inclined grooves in the standard calibration piece. The relative positions of the first fixing mechanism and the second fixing mechanism are adjusted to fix the angle of the standard calibration piece. The standard calibration piece is pushed to the testing position area using the displacement slider 502 and the displacement slide rail 501. The dimensions of the dial indicators 303 on both sides of the standard calibration piece are measured to find the zero point of the height on both sides of the standard calibration piece. 3) After removing the standard calibration piece, perform the same test steps as before on the product 6 to be tested. Then compare the reading of dial indicator 303 on the product 6 to be tested with the zero point to obtain the data of the angle of the inclined groove 601 inside the product 6 to be tested.

[0036] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A device for detecting the angle of the internal inclined groove of a constant velocity universal joint, characterized in that: The detection device includes a base, a fixing plate, a measuring mechanism, a product fixing mechanism, and a displacement mechanism. The fixing plate is vertically fixed to the base, and the measuring mechanism, including a dial indicator, is mounted on the fixing plate. The displacement mechanism is mounted on the base, and the product fixing mechanism is located on the displacement mechanism, moving horizontally along with the displacement mechanism. The product fixing mechanism is used to position and lock the product to be tested. The measuring mechanism is used to measure the change in the angle of the inner inclined groove of the product to be tested, which is locked on the product fixing mechanism.

2. The constant velocity universal joint internal inclined groove angle detection device as described in claim 1, characterized in that: The measuring mechanism includes a first fixed frame, and the dial indicator is connected to the fixed plate through the first fixed frame. The position of the first fixed frame on the fixed plate is adjustable in the vertical direction.

3. The constant velocity universal joint internal inclined groove angle detection device as described in claim 2, characterized in that: The measuring mechanism further includes a second fixing frame connected to the fixing plate. The second fixing frame is arranged parallel to the bottom of the first fixing frame. The position of the second fixing frame on the fixing plate is adjustable in the vertical direction. A connecting piece is installed on the second fixing frame. One end of the connecting piece is connected to the second fixing frame through a rotating shaft, and the other end of the connecting piece is connected to the measuring piece.

4. The constant velocity universal joint internal inclined groove angle detection device as described in claim 3, characterized in that: An adjustment groove is provided at one end of the connecting piece that is connected to the measuring piece. One end of the measuring piece is connected to the adjustment groove by a screw. The other end of the measuring piece is provided with a measuring contact. The measuring contact contacts the product to be tested. The measuring head of the dial indicator contacts the connecting piece to achieve measurement.

5. The constant velocity universal joint internal inclined groove angle detection device as described in claim 1, characterized in that: The product fixing mechanism includes a first fixing mechanism and a second fixing mechanism, both of which are mounted on the displacement mechanism; the second fixing mechanism includes a fixing adjustment mechanism, through which relative movement between the second fixing mechanism and the first fixing mechanism can be realized.

6. The constant velocity universal joint internal inclined groove angle detection device as described in claim 5, characterized in that: The first fixing mechanism includes a first connecting block, a first mounting plate, a measuring rod, and a first probe arm. The first connecting block is used to connect the displacement mechanism, the first mounting plate is fixed on the first connecting block, and the first probe arm and the measuring rod are fixed on the first mounting plate.

7. The constant velocity universal joint internal inclined groove angle detection device as described in claim 5, characterized in that: The second fixing mechanism includes a second connecting block, a second mounting plate, and a second probe arm; the fixing adjustment mechanism includes an adjusting slider, an adjusting slide rail, an adjusting connecting block, an adjusting screw, an adjusting block, and an adjusting handwheel; the second probe arm is fixed to the second mounting plate, the second mounting plate is fixed to the second connecting block, and the second connecting block is connected to the adjusting slider and the adjusting block; one end of the adjusting screw passes through the adjusting block, and the other end is connected to the adjusting handwheel; the adjusting slider moves on the adjusting slide rail, the adjusting slide rail is fixed to the adjusting connecting block, and the adjusting connecting block is connected to the displacement mechanism.

8. A constant velocity universal joint internal inclined groove angle detection device as described in claim 6 or 7, characterized in that: The first probe arm in the first fixing mechanism and the second probe arm in the second fixing mechanism are both inclined, and the inclination direction is the same.

9. The constant velocity universal joint internal inclined groove angle detection device as described in claim 1, characterized in that: The displacement mechanism includes a displacement slide rail and a displacement slider. The displacement slide rail is fixed to the base, and the displacement slider moves horizontally on the displacement slide rail. The displacement slider is connected to the product fixing mechanism to realize the horizontal position adjustment of the product fixing mechanism.

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