Oscillating moment and torque testing device for outer ball cage

Abstract

The utility model discloses a swing moment and torque testing device for an outer ball cage, relates to the technical field of outer ball cage detection equipment, and particularly relates to the swing moment and torque testing device for the outer ball cage, which comprises a swing moment detection assembly, a first motor and a second motor, a first torque sensor is arranged between the first motor and the swing head; the swing moment and torque testing device comprises a swing moment detection assembly and a torque detection assembly, the swing moment detection assembly comprises an embracing and clamping rotating assembly for fixedly clamping a shell of the outer ball cage and a second motor for driving the embracing and clamping rotating assembly to rotate, and the internal structures and relative positions of the swing moment detection assembly and the torque detection assembly are designed; therefore, the swing moment detection and the torque detection are completed under the condition of one-time clamping, the detection efficiency is improved, and full detection of the workpiece is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of outer constant velocity joint detection equipment, and more specifically, to a swing torque test device for an outer constant velocity joint. Background Art

[0002] At present, the automotive industry is in an incremental development stage. As an important component connecting the engine in an automobile, the demand for drive shafts is increasing day by day. Among them, the outer constant velocity joint is an important part of the drive shaft. When producing the outer constant velocity joint, it is necessary to detect the working swing torque and torque between its outer shell and the inner star-shaped sleeve. In the prior art, the swing torque and torque are detected separately, and each detection requires re-clamping, which requires multiple people to operate, resulting in low detection efficiency and difficulty in achieving full inspection of products.

[0003] In summary, how to provide a swing torque test device for an outer constant velocity joint that can avoid multiple clamping during the detection of the swing torque and torque of the outer constant velocity joint and improve the detection efficiency is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a swing torque test device for an outer constant velocity joint. Through the design of the internal structure and relative position of the swing torque detection component and the torque detection component, the two become the workpiece fixing fixtures for each other during detection, so that the swing torque and torque can be detected in one clamping, improving the detection efficiency and helping to achieve full inspection of the workpiece.

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

[0006] A swing torque test device for an outer constant velocity joint, comprising:

[0007] A swing torque detection component, including a swing head for driving the inner star-shaped sleeve of the outer constant velocity joint to swing, and a first motor for driving the swing head to rotate. A first torque sensor is arranged between the first motor and the swing head;

[0008] A torque detection component, including a clamping and rotating component for fixedly clamping the outer shell of the outer constant velocity joint, and a second motor for driving the clamping and rotating component to rotate. A second torque sensor is arranged between the second motor and the clamping and rotating component. The rotation axes of the clamping and rotating component and the swing head are perpendicular and intersect;

[0009] A support frame. The swing torque detection component and / or the torque detection component is / are slidably installed on the support frame, and the relative sliding direction is the same as the axis direction of the rotation axis of the clamping and rotating component.

[0010] Preferably, the swing head and the first motor are power-connected through a synchronous belt transmission mechanism.

[0011] Preferably, the swing head has an N-shaped structure, the rotation axis of the swing head is perpendicular to its side wall, a swing rod is fixedly arranged at the middle position of the swing head for inserting into the star-shaped sleeve of the outer constant velocity joint, and the swing rod intersects with the axis of the rotation axis of the swing head.

[0012] Preferably, a first slide plate is slidably arranged in the support frame through a first slide rail, and the first slide plate is connected with a first telescopic rod through a first floating joint for driving the first slide plate to slide along the first slide rail;

[0013] The torque detection assembly is fixedly installed on the first slide plate.

[0014] Preferably, the clamping and rotating assembly includes:

[0015] A chuck body, which is power-connected with the second motor and is provided with a tooling seat for placing a workpiece at the top;

[0016] Clamping jaws, at least three groups, are arranged in an annular array about the rotation axis of the chuck body and are hinged to the top of the chuck body;

[0017] A clamping cylinder, which is coaxially and slidably installed with the chuck body, and a matching wedge surface is arranged between the inner wall of the clamping cylinder and the outer wall of the clamping jaws; when the clamping cylinder slides upward from bottom to wrap the clamping jaws, the clamping jaws close to the center to complete the clamping of the workpiece.

[0018] Preferably, the torque detection assembly further includes:

[0019] A lifting frame, which is coaxially and rotatably installed with the clamping cylinder;

[0020] A third telescopic rod, the telescopic end of which is connected with the lifting frame through a third floating joint for driving the lifting frame to move along the rotation axis direction of the chuck body.

[0021] Preferably, an annular support raceway is coaxially and fixedly arranged outside the clamping cylinder, and a plurality of groups of roller bearings are arranged in the lifting frame, and the roller bearings can be rotatably installed in the support raceway.

[0022] Preferably, a second slide plate is slidably arranged in the support frame through a second slide rail, and the second slide plate is connected with a second telescopic rod through a second floating joint for driving the second slide plate to slide along the second slide rail;

[0023] The torque detection assembly is fixedly installed on the second slide plate.

[0024] Preferably, the output end of the second motor is connected with a central shaft sleeve through a synchronous belt transmission mechanism, and the clamping and rotating assembly is coaxially sleeved in the central shaft sleeve.

[0025] The swing torque test device for the outer constant velocity joint provided by the present utility model has at least the following beneficial effects compared with the prior art:

[0026] 1. When performing the swing torque test, the star-shaped sleeve is driven to swing by the swing head, and the clamping and rotating assembly fixes the outer constant velocity joint housing during the process; when performing the torque test, the star-shaped sleeve is fixed by swinging the swing head by a certain angle, and the clamping and rotating assembly drives the outer constant velocity joint housing to rotate; that is, during the two tests, the swing torque detection assembly and the torque detection assembly are used as workpiece fixing jigs for each other, so as to complete the two-side test with one clamping, and no secondary clamping is required in the middle;

[0027] 2. At the same time, the relative positions of the swing torque detection assembly and the torque detection assembly are adjustable, which is convenient for the clamping and disassembly of the outer constant velocity joint. Moreover, for the handled outer constant velocity joints with or without a handle of different lengths, after being assembled with the clamping and rotating assembly, the center position of the ball will change. By adjusting the swing torque detection assembly and the torque detection assembly, the rotation axis of the swing head can be overlapped with the center of the ball of the outer constant velocity joint, that is, it is applicable to the detection of outer constant velocity joints of different specifications, ensuring the accuracy of the swing torque detection result. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0029] Figure 1 It is a structural schematic diagram of the swing torque test device for the specific outer constant velocity joint provided by the present utility model;

[0030] Figure 2 It is a side view of the swing torque test device for the specific outer constant velocity joint provided by the present utility model;

[0031] Figure 3 It is a structural schematic diagram of the specific swing torque detection mechanism provided by the present utility model;

[0032] Figure 4 It is a structural schematic diagram of the specific torque detection mechanism provided by the present utility model;

[0033] Figure 5 It is a structural schematic diagram of the specific torque detection assembly provided by the present utility model;

[0034] Figure 6This is a schematic structural diagram of the specific clamping rotation assembly provided by the present utility model.

[0035] Figures 1-6 In which:

[0036] 1. Support group frame;

[0037] 2. Swing moment detection mechanism; 201. Installation back plate; 2011. First slide rail; 202. First telescopic rod; 2021. First floating joint; 203. First slide plate;

[0038] 204. Swing moment detection component; 2041. First motor; 2042. First torque sensor; 2043. Swing head; 2044. Swing rod; 2045. First synchronous pulley; 2046. First synchronous belt;

[0039] 3. Torque detection mechanism; 301. Installation group frame; 3011. Second slide rail; 302. Second telescopic rod; 3021. Second floating joint; 303. Second slide plate; 3031. Support plate;

[0040] 304. Torque detection component; 3041. Second motor; 3042. Second torque sensor; 3043. Central shaft sleeve; 3044. Second synchronous pulley; 3045. Second synchronous belt;

[0041] 305. Clamping rotation assembly; 3051. Chuck body; 3052. Tooling seat; 3053. Clamping jaw; 3054. Clamping cylinder; 3055. Support raceway; 3056. Connecting shaft; 3057. Roller bearing; 3058. Lifting frame; 30581. Linear bearing; 3059. Third telescopic rod; 30591. Third floating joint. Specific embodiments

[0042] 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0043] The core of the present utility model is to provide a swing moment and torque testing device for an outer constant velocity joint. Through the internal structure and relative position design of the swing moment detection component and the torque detection component, the two become the workpiece fixing fixtures for each other during detection, so that under the condition of one-time clamping, the swing moment and torque detections are completed, improving the detection efficiency and helping to achieve full inspection of the workpiece.

[0044] Please refer to Figures 1-6, a swing moment torque testing device for an outer constant velocity joint, comprising:

[0045] A swing moment detection component 204, including a swing head 2043 for driving the star-shaped sleeve inside the outer constant velocity joint to swing, and a first motor 2041 for driving the swing head 2043 to rotate. A first torque sensor 2042 is arranged between the first motor 2041 and the swing head 2043;

[0046] A torque detection component 304, including a clamping and rotating component 305 for fixedly clamping the outer constant velocity joint housing, and a second motor 3041 for driving the clamping and rotating component 305 to rotate. A second torque sensor 3042 is arranged between the second motor 3041 and the clamping and rotating component 305. The rotation axes of the clamping and rotating component 305 and the swing head 2043 are perpendicular and intersect;

[0047] A support frame 1, the swing moment detection component 204 and / or the torque detection component 304 are slidably installed on the support frame 1, and the relative sliding direction is the same as the axis direction of the rotation axis of the clamping and rotating component 305.

[0048] When performing the swing moment and torque detection of the outer constant velocity joint, first fix the outer shell of the outer constant velocity joint to the clamping and rotating component 305, and fix the star-shaped sleeve of the outer constant velocity joint to the swing head 2043;

[0049] During the installation process, the center of the ball of the outer constant velocity joint is on the rotation axis of the clamping and rotating component 305, and the relative movement direction of the swing moment detection component 204 and the torque detection component 304 is the same as the axis direction of the rotation axis of the clamping and rotating component 305, and the rotation axes of the clamping and rotating component 305 and the swing head 2043 intersect. That is, by adjusting the relative positions of the swing moment detection component 204 and the torque detection component 304, the center of the ball of the outer constant velocity joint can be made to be on the rotation axis of the swing head 2043;

[0050] When performing the swing moment detection, the clamping and rotating component 305 is fixed, and the swing head 2043 makes a reciprocating swing under the action of the forward and reverse reciprocating rotation of the first motor 2041, thereby driving the star-shaped sleeve of the outer constant velocity joint to swing around its own ball center. The first torque sensor 2042 records the torque of the swing, and the swing torque between the star-shaped sleeve and the outer shell of the outer constant velocity joint can be measured;

[0051] When performing the torque detection, first swing the swing head 2043 from the central position to one side by 23°. At this time, the star-shaped sleeve is fixed and will not rotate with the outer shell of the outer constant velocity joint. At this time, the first motor 2041 is stationary, and the second motor 3041 drives the clamping and rotating component 305 to rotate. The second torque sensor 3042 records the torque of the rotation, and the rotation torque between the star-shaped sleeve and the outer shell of the outer constant velocity joint is measured.

[0052] In some embodiments, such as Figure 1 andFigure 2 As shown, both the swing torque detection component 204 and the torque detection component 304 are installed on the support frame 1 in a vertical sliding manner; however, in some embodiments, the swing torque detection component 204 is fixedly installed on the support frame 1, and the torque detection component 304 is installed on the support frame 1 in a vertical sliding manner or a horizontal sliding manner; in some other embodiments, the torque detection component 304 is fixedly installed on the support frame 1, while the swing torque detection component 204 is installed on the support frame 1 in a vertical sliding manner or a horizontal sliding manner; in some embodiments, both the swing torque detection component 204 and the torque detection component 304 are installed on the support frame 1 in a horizontal sliding manner to facilitate the clamping and disassembly of the outer constant velocity joint.

[0053] In some embodiments, the swing head 2043 and the first motor 2041 are power-connected through a synchronous belt drive mechanism;

[0054] As Figure 3 shown, a first synchronous pulley 2045 is provided at the rotating shaft end of the swing head 2043, and a first synchronous pulley 2045 is provided at the output shaft end of the first motor 2041 through a coupling. The two first synchronous pulleys 2045 are connected by a first synchronous belt 2046 to complete the power connection. The synchronous belt mechanism is used for power detection, so that when the swing head 2043 swings, it has a certain swing margin, and the reverse vibration acting on the first motor 2041 due to its swing inertia is relatively small, which helps to extend the service life of the first motor 2041. At the same time, to ensure the rotation accuracy of the first motor 2041, a servo motor is preferably used.

[0055] As Figure 3 shown, the swing head 2043 has an n-shaped structure, the rotating shaft of the swing head 2043 is perpendicular to its own side wall, and a swing rod 2044 is fixedly provided at the middle position of the swing head 2043 for inserting into the star-shaped sleeve of the outer constant velocity joint. The swing rod 2044 intersects with the axis of the rotating shaft of the swing head 2043;

[0056] The swing head 2043 is structured in an n-shaped or L-shaped manner, and the swing rod 2044 is fixed to the end of the swing head 2043 far from the rotating shaft, so that the swing rotation point of the swing rod 2044 and the star-shaped sleeve coincides with the rotation axis of the swing head 2043, and it is convenient for the swing rod 2044 to be inserted into the star-shaped sleeve, reducing the workpiece clamping difficulty.

[0057] As Figure 3 shown, a first sliding plate 203 is slidably provided in the support frame 1 through a first sliding rail 2011. The first sliding plate 203 is connected to a first telescopic rod 202 through a first floating joint 2021 for driving the first sliding plate 203 to slide along the first sliding rail 2011;

[0058] The swing torque detection component 204 is fixedly installed on the first sliding plate 203.

[0059] An installation backplane 201 is fixedly arranged inside the support frame 1. The first slide rail 2011 and the first telescopic rod 202 are both fixedly installed on the installation backplane 201. The installation backplane 201, the first slide plate 203, the first telescopic rod 202, and the swing moment detection component 204 together form a swing moment detection mechanism 2, which is convenient for realizing the overall modular design.

[0060] As Figure 6 shown, the clamping rotation assembly 305 includes:

[0061] A chuck body 3051, which is power-connected to the second motor 3041, and a tooling seat 3052 for placing a workpiece is arranged at the top;

[0062] Clamping jaws 3053, at least three groups, are arranged in an annular array about the rotation axis of the chuck body 3051, and are hinged to the top of the chuck body 3051;

[0063] A clamping cylinder 3054 is coaxially and slidably installed on the chuck body 3051. A matching wedge surface is arranged between the inner wall of the clamping cylinder 3054 and the outer wall of the clamping jaws 3053; when the clamping cylinder 3054 slides upward from bottom to wrap the clamping jaws 3053, the clamping jaws 3053 close to the center to complete the clamping of the workpiece.

[0064] By adopting the method of moving the clamping cylinder 3054 upward to drive the clamping jaws 3053 to close inward, the clamping and fixing of the outer ball cage housing are completed. The structure is simple and the clamping is firm. At the same time, the tooling seat 3052 can be used for the primary support of the outer ball cage, which is convenient for the subsequent clamping of the outer ball cage by the clamping jaws 3053;

[0065] During design, the tooling seat 3052 can be set as a hollow structure to facilitate the insertion of the long handle of the outer ball cage; the clamping jaws 3053 are connected to the chuck body 3051 through a torsion spring. When the clamping cylinder 3054 moves downward, it can be automatically released under the action of the torsion spring to complete the release of the outer ball cage.

[0066] At the same time, when designing the clamping jaws 3053, an installation groove can be arranged inside, and different clamping blocks can be selected and assembled in the installation groove according to the model of the outer ball cage to be measured to meet the clamping requirements of various models of outer ball cages.

[0067] As Figure 5 shown, the torque detection component 304 further includes:

[0068] A lifting frame 3058, which is coaxially and rotatably installed on the clamping cylinder 3054;

[0069] A third telescopic rod 3059, the telescopic end of which is connected to the lifting frame 3058 through a third floating joint 30591, is used to drive the lifting frame 3058 to move along the rotation axis direction of the chuck body 3051;

[0070] The lifting frame 3058 is driven to move up and down by the third telescopic rod 3059, and the lifting frame 3058 is rotatably installed relative to the clamping cylinder 3054, that is, the third telescopic rod 3059 drives the clamping cylinder 3054 to move up and down, completing the clamping action of the clamping and rotating assembly 305. And in some embodiments, a support plate 3031 is added to support the clamping and rotating assembly 305. At the same time, to ensure the stable movement of the lifting frame 3058, a linear bearing 30581 is added between the lifting frame 3058 and the support plate 3031.

[0071] Such as Figure 6 As shown, an annular support raceway 3055 is coaxially and fixedly arranged outside the clamping cylinder 3054, and a plurality of sets of roller bearings 3057 are arranged inside the lifting frame 3058, and the roller bearings 3057 can be rotatably installed in the support raceway 3055;

[0072] To ensure that there can be good relative rotation between the lifting frame 3058 and the clamping cylinder 3054 during the lifting process of the lifting frame 3058, by setting the roller bearings 3057 and the support raceway 3055, the friction between the two is reduced.

[0073] In some embodiments, a second slide plate 303 is slidably arranged in the support frame 1 through a second slide rail 3011, and the second slide plate 303 is connected to a second telescopic rod 302 through a second floating joint 3021 for driving the second slide plate 303 to slide along the second slide rail 3011;

[0074] The torque detection assembly 304 is fixedly installed with the second slide plate 303;

[0075] Such as Figure 4 As shown, an installation frame 301 is fixedly arranged in the support frame 1, and the second slide rail 3011 and the second telescopic rod 302 are both fixedly connected to the installation frame 301. The installation frame 301, the second slide plate 303, the second telescopic rod 302, and the torque detection assembly 304 together constitute a torque detection mechanism 3, which is convenient for the modular design of the product and reduces the overall design difficulty and assembly difficulty.

[0076] In some embodiments, the output end of the second motor 3041 is connected to a middle shaft sleeve 3043 through a synchronous belt transmission mechanism, and the clamping and rotating assembly 305 is coaxially sleeved inside the middle shaft sleeve 3043;

[0077] Such as Figure 5As shown in the figure, a central shaft sleeve 3043 is added between the second motor 3041 and the clamping rotation assembly 305 for power transmission. A connecting shaft 3056 coaxial and fixed with the chuck body 3051 is arranged inside the clamping rotation assembly 305. The connecting shaft 3056 is coaxially connected with the central shaft sleeve 3043 by interference fitting or spline shaft, so as to facilitate the replacement of different clamping rotation assemblies 305 and be applicable to the detection of different models of outer constant velocity joints.

[0078] At the same time, as Figure 4 shown in the figure, a second synchronous pulley 3044 is arranged at the rotating shaft end of the central shaft sleeve 3043, and a second synchronous pulley 3044 is arranged at the output end of the second motor 3041. The two second synchronous pulleys 3044 are connected by a second synchronous belt 3045, that is, the power transmission between the second motor 3041 and the clamping rotation assembly 305 is carried out through a belt drive mechanism, reducing the influence of the reverse torque of the outer constant velocity joint on the accuracy of the second motor 3041. At the same time, to ensure the rotation accuracy of the second motor 3041, a servo motor is preferably used.

[0079] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0080] The swing torque test device for the outer constant velocity joint provided by the present utility model has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A swing moment torque test device for an outer ball cage, characterized in that: include: A swing torque detection assembly (204) comprises a swing head (2043) for driving the star-shaped sleeve in the outer ball cage to swing, and a first motor (2041) for driving the swing head (2043) to rotate, wherein a first torque sensor (2042) is provided between the first motor (2041) and the swing head (2043); The torque detection component (304) comprises a clamping rotating component (305) for fixing and clamping the outer cage shell, and a second motor (3041) for driving the clamping rotating component (305) to rotate, a second torque sensor (3042) is provided between the second motor (3041) and the clamping rotating component (305), and the rotation axes of the clamping rotating component (305) and the swing head (2043) are perpendicular and intersecting; The support assembly frame (1), the swing moment detection component (204) and / or the torque detection component (304) are slidably mounted on the support assembly frame (1), and the relative sliding direction is consistent with the axis direction of the rotary shaft of the clamping rotation component (305).

2. The swing moment torque test device of the outer ball cage according to claim 1 is characterized in that: The oscillating head (2043) and the first motor (2041) are power-connected via a synchronous belt transmission mechanism.

3. The swing moment torque testing device of the outer ball cage according to claim 1 is characterized in that: The swing head (2043) is an n-shaped structure, the rotation axis of the swing head (2043) is perpendicular to its side wall, a swing rod (2044) is fixedly provided at the middle position of the swing head (2043) for inserting into the star-shaped sleeve of the outer ball cage, and the swing rod (2044) intersects with the axis of the rotation axis of the swing head (2043).

4. The swing moment torque test device of the outer ball cage according to claim 1, characterized in that: A first slide plate (203) is slidably arranged in the support assembly frame (1) via a first slide rail (2011); the first slide plate (203) is connected to a first telescopic rod (202) via a first floating joint (2021) for driving the first slide plate (203) to slide along the first slide rail (2011); The swing moment detection component (204) is fixedly mounted on the first slide plate (203).

5. The swing moment torque testing device of the outer ball cage according to claim 1, characterized in that: The clamping rotating assembly (305) comprises: A chuck body (3051) is connected to the second motor (3041) by power, and a tooling seat (3052) for placing a workpiece is provided at the top thereof; Clamping jaws (3053), which are at least three groups, are arranged in a circular array about the rotation axis of the chuck body (3051) and are hinged to the top end of the chuck body (3051); The clamping cylinder (3054) is coaxially slidably installed with the chuck body (3051), and a matching wedge surface is provided between the inner wall of the clamping cylinder (3054) and the outer wall of the clamping jaw (3053); when the clamping cylinder (3054) slides from bottom to top to wrap around the clamping jaw (3053), the clamping jaw (3053) closes toward the center to complete the clamping of the workpiece.

6. The swing moment torque testing device of the outer ball cage according to claim 5, characterized in that: The torque detection component (304) further includes: A lifting frame (3058) is coaxially rotatably mounted with the clamping cylinder (3054); A third telescopic rod (3059), the telescopic end of which is connected to the lifting frame (3058) via a third floating joint (30591), and is used to drive the lifting frame (3058) to move along the direction of the rotation axis of the chuck body (3051).

7. The swing moment torque testing device of the outer ball cage according to claim 6, characterized in that: An annular support raceway (3055) is coaxially fixedly arranged outside the clamping cylinder (3054), and a plurality of groups of roller bearings (3057) are arranged inside the lifting frame (3058). The roller bearings (3057) can be rollingly installed inside the support raceway (3055).

8. The swing moment torque testing device of the outer ball cage according to claim 1, characterized in that: A second slide plate (303) is slidably arranged in the support assembly frame (1) via a second slide rail (3011); the second slide plate (303) is connected to a second telescopic rod (302) via a second floating joint (3021) for driving the second slide plate (303) to slide along the second slide rail (3011); The torque detection component (304) is fixedly mounted on the second slide plate (303).

9. The swing moment torque test device of the outer ball cage according to any one of claims 1 to 8, characterized in that: The output end of the second motor (3041) is connected to a central shaft sleeve (3043) via a synchronous belt transmission mechanism, and the clamping rotating assembly (305) is coaxially sleeved in the central shaft sleeve (3043).

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