Torque detection mechanism and detection method for end face spline CV joint assembly

Abstract

The invention relates to the field of torque detection, and provides a torque detection mechanism and detection method for an end face spline CV joint assembly, the end face spline CV joint assembly is placed on a placing mechanism with one end facing downwards, a turntable rotates to enable one placing mechanism to rotate to a pressing mechanism, the pressing mechanism presses down to enable a swing mechanism to press down, and the end face spline CV joint assembly is placed on the swing mechanism. The belt rocking handle pressing mechanism presses down to press an inner ring of the end face spline CV joint assembly, and the two rolling pressing mechanisms press the surface of an outer ring of the end face spline CV joint assembly, so that the inner ring and the outer ring of the end face spline CV joint assembly are pressed; the lifting rotating mechanism is arranged to drive the servo rotating motor to lift, so that the profiling positioning block is meshed with a spline of the profiling end face spline CV joint assembly, the servo rotating motor rotates to circumferentially rotate the end face spline CV joint assembly, the torque is detected through the torque sensor, and torque detection of the end face spline CV joint assembly is achieved.

Description

Technical Field

[0001] The present invention relates to the field of torque detection, and in particular to a torque detection mechanism and a detection method for an end face spline CV joint assembly. Background Art

[0002] After assembling the CV joint assembly, torque detection is required. The torque detection process is as follows: the retainer, inner ring and steel ball need to be rotated a certain angle in the inner cavity of the outer ring along the center line of the cavity, and then the retainer, inner ring and steel ball need to be driven to rotate circumferentially inside the outer ring cavity to test the rotational torque and ensure that the rotational torque is within the set range. For ordinary shank spline CV joint assemblies, the circumferential direction can be fixed by the shank spline profiling tooling. The servo rotation mechanism drives the profiling tooling to drive the CV joint assembly to rotate. At the same time, the tooling is used to fix the retainer, inner ring and steel ball to rotate a certain angle before performing rotational torque detection. However, for the end face spline CV joint assembly, because the spline is on the end face, it is impossible to drive the workpiece to rotate circumferentially by fixing the shank. In order to solve the torque detection problem of the end face spline CV joint assembly, it is necessary to design a torque detection mechanism for the end face spline CV joint assembly. Summary of the invention

[0003] In view of this, the purpose of the present invention is to propose a torque detection mechanism and detection method for an end face spline CV joint assembly to solve the problem that the end face spline CV joint assembly cannot drive the workpiece to rotate circumferentially through a fixed handle because the spline is on the end face.

[0004] Based on the above-mentioned purpose, the present invention provides a torque detection mechanism for an end face spline CV joint assembly, including a base, a turntable is arranged on the top of the base, and placement mechanisms are evenly distributed on the top edge of the turntable, and the end face spline CV joint assembly is placed in the placement mechanism; a pressing mechanism is arranged on one side of one of the placement mechanisms on the base, and a pressing frame is arranged at the top output end of the pressing mechanism, and a swing mechanism is arranged on the inner wall of the pressing frame for rotation, and a crank clamping mechanism is arranged in the swing mechanism, and the crank clamping mechanism is inserted into the inner ring of the clamping end face spline CV joint assembly for clamping; two rolling clamping mechanisms are also arranged on the inner wall of the pressing frame, and the rolling clamping mechanism contacts and clamps the outer ring surface of the end face spline CV joint assembly; a lifting and rotating mechanism is arranged on the base at the pressing mechanism, and the lifting and rotating mechanism includes a servo rotating motor, and a contour positioning block is arranged at the top output end of the servo rotating motor, and the contour positioning block is matched and meshed with the spline of the end face spline CV joint assembly; the lifting and rotating mechanism includes a torque sensor, and the torque sensor monitors the torque change of the servo rotating motor.

[0005] Preferably, the placement mechanism comprises a contoured placement seat arranged on the top of the turntable, and a contoured placement groove penetrating from top to bottom is provided in the contoured placement seat.

[0006] Preferably, the turntable is located below the profiling placement groove and is provided with a slot connected to the profiling placement groove. The lifting and rotating mechanism includes a lifting cylinder arranged on the base. The top output end of the lifting cylinder is fixedly connected to a lifting seat. A servo rotating motor is arranged on the top of the lifting seat. The top of the profiling positioning block is a gear ring that engages with the splines of the end face spline CV section assembly. The profiling positioning block can pass through the slot and extend into the profiling placement groove to engage with the splines of the end face spline CV section assembly.

[0007] Preferably, the pressing mechanism comprises a pressing cylinder arranged on the base, an output end at the top of the pressing cylinder is fixedly connected with an L-shaped connecting rod, and the pressing frame is fixed at the top of the connecting rod.

[0008] Preferably, the swing mechanism includes a door-shaped swing frame arranged inside the lower pressure frame, the two ends of the swing frame are rotatably connected to the two sides of the inner wall of the lower pressure frame, a swing motor is arranged outside the lower pressure frame, and the output end of the swing motor passes through the side wall of the lower pressure frame and is fixedly connected to the swing frame.

[0009] Preferably, the crank clamping mechanism includes a mounting tube arranged at the top end of the swing frame, a crank is inserted at the bottom of the mounting tube, and the bottom end of the crank is adapted to the inner ring of the end face spline CV joint assembly.

[0010] Preferably, the rolling clamping mechanism includes mounting arms provided at the bottom ends of both sides of the lower pressure frame, the mounting arms extend inwardly near the crank handle, and the inner ends of the mounting arms are rotatably connected to rollers.

[0011] Preferably, the servo rotary motor is electrically connected to a torque sensor, the torque sensor is electrically connected to a controller, and the controller is connected to a display unit.

[0012] Preferably, a rotating motor is arranged on the top of the base, and the turntable is fixedly connected to the output end of the top of the rotating motor.

[0013] The present invention also provides a torque detection method for an end face spline CV joint assembly, comprising the following steps: Step 1: First, place the end face spline CV joint assemblies one by one in the placement mechanism, and then rotate the turntable until one of the placement mechanisms is close to the pressing mechanism and the lifting and rotating mechanism; Step 2: The pressing mechanism drives the pressing frame to press downward, thereby pressing the swing mechanism downward, so that the crank clamping mechanism is inserted into the inner ring of the clamping end face spline CV joint assembly for clamping, and at the same time, the rolling clamping mechanism contacts and clamps the outer ring surface of the end face spline CV joint assembly; Step 3: The swing mechanism swings, driving the retainer, inner ring and steel balls of the end face spline CV joint assembly to rotate; Step 4: Lift the rotating mechanism so that the contoured positioning block engages with the spline of the end face spline CV joint assembly. The servo motor rotates to drive the CV assembly to rotate circumferentially. The torque sensor detects the torque value. The beneficial effects of the present invention are as follows: the present invention places one end of the spline of the end face spline CV joint assembly downward on the placement mechanism, and the turntable rotates to rotate one of the placement mechanisms to the pressing mechanism, and the pressing mechanism presses down to cause the swing mechanism to press down, driving the crank clamping mechanism to press down on the inner ring of the end face spline CV joint assembly, and the two rolling clamping mechanisms press the outer ring surface of the end face spline CV joint assembly, thereby achieving the clamping of the inner ring and outer ring parts of the end face spline CV joint assembly; by providing a lifting and rotating mechanism to drive the servo rotating motor to lift, the contour positioning block is engaged with the spline of the contoured end face spline CV joint assembly, and the servo rotating motor can rotate the end face spline CV joint assembly circumferentially, and the torque is detected by the torque sensor, thereby achieving the torque detection of the end face spline CV joint assembly. The present invention can not only fix the outer ring and inner ring of the end face spline CV joint assembly, but also the swing mechanism can drive the inner ring and the retaining frame to swing a certain angle to ensure stability, and then start the servo rotation motor to drive the profiling positioning block to mesh with the spline part to rotate, so as to well detect the torque of the end face spline CV joint assembly. The lifting and rotating mechanism of the present invention is driven by the lifting cylinder to lift, and the profiling positioning block can pass through the notch of the rotating disk and extend into the profiling placement groove. The profiling positioning block is provided with a gear ring to mesh with the spline, so that the torque detection of different placement mechanisms is realized in turn. The pressing mechanism of the present invention drives the connecting rod to press down through the pressing cylinder, thereby realizing the pressing down of the pressing frame, thereby realizing the pressing down of the crank clamping mechanism. A swing motor is arranged outside the pressing frame to drive the swing frame inside to swing, thereby realizing the swing of the crank clamping mechanism, so that the inner ring and the retaining frame rotate and move by an angle. The crank clamping mechanism drives the crank to be inserted into the inner ring through the installation cylinder to clamp the inner ring; the pressing frame is also provided with an installation arm to rotate the connecting roller to clamp the outer ring, thereby realizing the clamping of the outer ring. The servo rotating motor electrical signal is connected to the torque sensor to sense the torque value and transmit it to the controller, and the controller transmits it to the display unit to display the final torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a front view of the base and the turntable of the present invention; Figure 3 It is an enlarged schematic diagram of the swing frame of the present invention; Figure 4 It is a schematic diagram of the swing mechanism of the present invention when swinging.

[0016] The markings in the figure are: 1-base, 2-turntable, 3-pressing frame, 4-contact positioning block, 5-servo rotating motor, 6-contact placement seat, 7-contact placement slot, 8-lifting cylinder, 9-lifting seat, 10-gear ring, 11-pressing cylinder, 12-connecting rod, 13-swinging frame, 14-mounting cylinder, 15-crank handle, 16-mounting arm, 17-roller, 18-rotating motor, 19-swinging motor. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 4As shown, a torque detection mechanism of an end face spline CV joint assembly includes a base 1, a rotating motor 18 is arranged on the top of the base 1, a turntable 2 is fixedly connected to the top output end of the rotating motor 18, and a placement mechanism is evenly distributed on the top edge of the turntable 2, and the end face spline CV joint assembly is placed in the placement mechanism; a pressing mechanism is arranged on one side of one of the placing mechanisms on the base 1, a pressing frame 3 is arranged on the top output end of the pressing mechanism, and a swing mechanism is arranged on the inner wall of the pressing frame 3, and a crank clamping mechanism is arranged in the swing mechanism, and the crank clamping mechanism is inserted into The inner ring of the clamping end face spline CV joint assembly is clamped; two rolling clamping mechanisms are also arranged on the inner wall of the lower pressing frame 3, and the rolling clamping mechanisms contact and clamp the outer ring surface of the end face spline CV joint assembly; a lifting and rotating mechanism is arranged on the base 1 at the lower pressing mechanism, and the lifting and rotating mechanism includes a servo rotating motor 5, and a contour positioning block 4 is arranged at the top output end of the servo rotating motor 5, and the contour positioning block 4 is matched and meshed with the spline of the end face spline CV joint assembly; the lifting and rotating mechanism includes a torque sensor, and the torque sensor monitors the torque change of the servo rotating motor 5. By placing one end of the spline of the end face spline CV joint assembly downward on the placement mechanism, the turntable 2 rotates to make one of the placement mechanisms rotate to the pressing mechanism, and the pressing mechanism presses down to make the swing mechanism press down, driving the crank clamping mechanism to press down on the inner ring of the end face spline CV joint assembly, and the two rolling clamping mechanisms press on the outer ring surface of the end face spline CV joint assembly, thus achieving the clamping of the inner and outer ring parts of the end face spline CV joint assembly; by providing a lifting and rotating mechanism to drive the servo rotating motor 5 to lift, the contour positioning block 4 is engaged with the spline of the contoured end face spline CV joint assembly, so that the rotation of the servo rotating motor can rotate the end face spline CV joint assembly circumferentially, and the torque is detected by the torque sensor, thereby achieving the torque detection of the end face spline CV joint assembly. The present invention can not only fix the outer ring and inner ring parts of the end face spline CV joint assembly, but also the swing mechanism can drive the inner ring and the retaining frame to swing to a certain angle to ensure stability, and then by starting the servo rotating motor 5 to drive the contour positioning block 4 to engage and rotate with the spline part, the torque of the end face spline CV joint assembly can be well detected.

[0020] The placement mechanism includes a profiling placement seat 6 arranged at the top of the rotating disk 2, and a profiling placement groove 7 is provided in the profiling placement seat 6. The rotating disk 2 is provided with a notch connected to the profiling placement groove 7 below the profiling placement groove 7, and the lifting and rotating mechanism includes a lifting cylinder 8 arranged on the base 1, and the top output end of the lifting cylinder 8 is fixedly connected with a lifting seat 9, and the top of the lifting seat 9 is provided with a servo rotating motor 5, and the top of the profiling positioning block 4 is a gear ring 10 that meshes with the spline of the end face spline CV section assembly, and the profiling positioning block 4 can pass through the notch and extend into the profiling placement groove 7 to mesh with the spline of the end face spline CV section assembly. The lifting and rotating mechanism drives the lifting through the lifting cylinder 8, and the profiling positioning block 4 can pass through the notch of the rotating disk 2 and extend into the profiling placement groove 7, and the profiling positioning block is provided with a gear ring that meshes with the spline, so that the torque detection of different placement mechanisms is realized in turn.

[0021] The pressing mechanism includes a pressing cylinder 11 arranged on the base 1, and the top output end of the pressing cylinder 11 is fixedly connected with an L-shaped connecting rod 12, and the pressing frame 3 is fixed at the top of the connecting rod 12. The swing mechanism includes a door-shaped swing frame 13 arranged inside the pressing frame 3, and the two ends of the swing frame 13 are rotatably connected with the two sides of the inner wall of the pressing frame 3. A swing motor 19 is arranged outside the pressing frame 3, and the output end of the swing motor 19 passes through the side wall of the pressing frame 3 and is fixedly connected with the swing frame 13. The crank clamping mechanism includes a mounting tube 14 arranged at the top of the swing frame 13, and a crank 15 is inserted at the bottom of the mounting tube 14, and the bottom end of the crank 15 is adapted to the inner ring of the end face spline CV joint assembly. The rolling clamping mechanism includes mounting arms 16 arranged at the bottom ends of both sides of the pressing frame 3, and the mounting arms 16 extend inward near the crank 15, and the inner ends of the mounting arms 16 are rotatably connected with rollers 17. The pressing mechanism drives the connecting rod 12 to press down through the pressing cylinder 11, thereby realizing the pressing down of the pressing frame 13, thereby realizing the pressing down of the crank clamping mechanism. The swing motor 19 is arranged outside the pressing frame 13 to drive the swing frame 13 inside to swing, thereby realizing the swing of the crank clamping mechanism, so that the inner ring and the retaining frame rotate and move the angle. The crank clamping mechanism drives the crank 15 to insert into the inner ring through the installation cylinder 14 to press the inner ring; the pressing frame 13 is also provided with a mounting arm 16 to rotate the connecting roller 17 to press the outer ring, thereby realizing the pressing of the outer ring. The servo motor 5 is electrically connected to a torque sensor, which is electrically connected to a controller, which is connected to a display unit. The servo motor 5 is electrically connected to a torque sensor to sense the torque value and transmit it to the controller, which transmits it to the display unit to display the final torque.

[0022] This embodiment also provides a torque detection method for an end face spline CV joint assembly, comprising the following steps: Step 1: First, place the end face spline CV joint assemblies one by one in the placement mechanism, and then rotate the turntable until one of the placement mechanisms is close to the pressing mechanism and the lifting and rotating mechanism; Step 2: The pressing mechanism drives the pressing frame to press downward, thereby pressing the swing mechanism downward, so that the crank clamping mechanism is inserted into the inner ring of the clamping end face spline CV joint assembly for clamping, and at the same time, the rolling clamping mechanism contacts and clamps the outer ring surface of the end face spline CV joint assembly; Step 3: The swing mechanism swings, driving the retainer, inner ring and steel balls of the end face spline CV joint assembly to rotate; Step 4: The lifting and rotating mechanism is lifted, so that the contour positioning block 4 is meshed with the spline of the end face spline CV joint assembly, the servo rotating motor 5 rotates, driving the CV assembly to rotate circumferentially, and the torque sensor detects the torque value. It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A torque detection mechanism for an end face spline CV joint assembly, comprising a base (1), characterized in that: A turntable (2) is arranged on the top of the base (1), and placement mechanisms are evenly distributed on the top edge of the turntable (2), and the end face spline CV joint assembly is placed in the placement mechanism; a pressing mechanism is arranged on one side of one of the placement mechanisms on the base (1), and a pressing frame (3) is arranged on the top output end of the pressing mechanism, and a swing mechanism is arranged on the inner wall of the pressing frame (3) for rotation, and a crank clamping mechanism is arranged in the swing mechanism, and the crank clamping mechanism is inserted into the inner ring of the end face spline CV joint assembly for clamping; two rolling clamping mechanisms are also arranged on the inner wall of the pressing frame (3), and the rolling clamping mechanisms are in contact with the outer ring surface of the end face spline CV joint assembly for clamping; a lifting and rotating mechanism is arranged on the base (1) at the pressing mechanism, and the lifting and rotating mechanism includes a servo rotating motor (5), and a contour positioning block (4) is arranged on the top output end of the servo rotating motor (5), and the contour positioning block (4) is matched and meshed with the spline of the end face spline CV joint assembly; the lifting and rotating mechanism includes a torque sensor, and the torque sensor monitors the torque change of the servo rotating motor (5).

2. According to claim 1, a torque detection mechanism of an end face spline CV joint assembly is characterized in that: The placement mechanism comprises a contour placement seat (6) arranged on the top of the rotating disk (2), and a contour placement groove (7) is provided in the contour placement seat (6) and is connected vertically.

3. The torque detection mechanism of the end face spline CV joint assembly according to claim 2, characterized in that: The turntable (2) is located below the profiling placement groove (7) and is provided with a notch connected to the profiling placement groove (7). The lifting and rotating mechanism includes a lifting cylinder (8) arranged on the base (1). The top output end of the lifting cylinder (8) is fixedly connected to a lifting seat (9). The top of the lifting seat (9) is provided with a servo rotating motor (5). The top of the profiling positioning block (4) is a gear ring (10) that meshes with the splines of the end face spline CV joint assembly. The profiling positioning block (4) can pass through the notch and extend into the profiling placement groove (7) to mesh with the splines of the end face spline CV joint assembly.

4. The torque detection mechanism of the end face spline CV joint assembly according to claim 1, characterized in that: The pressing mechanism comprises a pressing cylinder (11) arranged on a base (1), an L-shaped connecting rod (12) being fixedly connected to the top output end of the pressing cylinder (11), and a pressing frame (3) being fixed to the top of the connecting rod (12).

5. The torque detection mechanism of the end face spline CV joint assembly according to claim 4, characterized in that: The swing mechanism comprises a door-shaped swing frame (13) arranged inside the lower pressing frame (3), two ends of the swing frame (13) are rotatably connected to two sides of the inner wall of the lower pressing frame (3), a swing motor (19) is arranged outside the lower pressing frame (3), and the output end of the swing motor (19) passes through the side wall of the lower pressing frame (3) and is fixedly connected to the swing frame (13).

6. The torque detection mechanism of the end face spline CV joint assembly according to claim 5, characterized in that: The crank clamping mechanism comprises a mounting tube (14) arranged at the top end of the swing frame (13), a crank (15) being inserted at the bottom of the mounting tube (14), and the bottom end of the crank (15) being adapted to the inner ring of the end face spline CV joint assembly.

7. The torque detection mechanism of the end face spline CV joint assembly according to claim 6, characterized in that: The rolling pressing mechanism comprises mounting arms (16) provided at the bottom ends of both sides of the lower pressing frame (3), the mounting arms (16) extending inwards near the crank handle (15), and the inner ends of the mounting arms (16) are rotatably connected to rollers (17).

8. The torque detection mechanism of the end face spline CV joint assembly according to claim 1, characterized in that: The electrical signal of the rotating motor (5) is connected to a torque sensor, the electrical signal of the torque sensor is connected to a controller, and the controller is connected to a display unit.

9. The torque detection mechanism of the end face spline CV joint assembly according to claim 1, characterized in that: A rotating motor (18) is arranged on the top of the base (1), and the rotating disk (2) is fixedly connected to the output end of the top of the rotating motor (18).

10. A torque detection method for an end face spline CV joint assembly, using any one of claims 1 to 9, characterized in that: The following steps are included: Step 1: First, place the end face spline CV joint assemblies one by one in the placement mechanism, and then rotate the turntable until one of the placement mechanisms is close to the pressing mechanism and the lifting and rotating mechanism; Step 2: The pressing mechanism drives the pressing frame to press downward, thereby pressing the swing mechanism downward, so that the crank clamping mechanism is inserted into the inner ring of the clamping end face spline CV joint assembly for clamping, and at the same time, the rolling clamping mechanism contacts and clamps the outer ring surface of the end face spline CV joint assembly; Step 3: The swing mechanism swings, driving the retainer, inner ring and steel balls of the end face spline CV joint assembly to rotate; Step 4: The lifting and rotating mechanism is lifted so that the contoured positioning block (4) is meshed with the spline of the end face spline CV joint assembly, the servo rotating motor (5) rotates, driving the CV assembly to rotate circumferentially, and the torque sensor detects the torque value.

Images