A wavy cage riveting quality detection device and detection method

Abstract

The present invention provides a riveting quality detection device and detection method for a wavy cage. The device includes a lower inspection body that can move up and down and an upper inspection body that can be driven by a torque detection mechanism to rotate along the horizontal circumferential direction. There are relative clamping planes between the upper and lower inspection bodies, and ball pocket nests and rivet head nests that match the surface shape of the wavy cage are provided on the clamping planes. During detection, a pair of wavy cages that have completed empty riveting are clamped between the upper and lower inspection bodies. The lower inspection body is fixed, and the torque detection mechanism drives the upper inspection body to rotate. The torque is transmitted to the rivet rod, and the torque value when the rivet rod is sheared is recorded. The anti-shearing strength of the rivet rod is calculated through a formula. The detection device and detection method can effectively adapt to the complex and special external shape structure of the wavy cage, solve the problem that the existing technology cannot directly detect and test the riveting quality of the wavy cage, and fill the technical gap in the industry.

Description

Technical Field

[0001] The present invention belongs to the technical field of rolling bearing processing and testing equipment, and particularly relates to a wave-shaped cage riveting quality detection device and a detection method. Background Art

[0002] A rolling bearing generally consists of an inner ring, an outer ring, rolling elements, and a cage. Inside the bearing, the cage mainly serves to separate the rolling elements and prevent them from rubbing and colliding with each other. Deep groove ball bearings in rolling bearings are the most common. Except for some special occasions, most deep groove ball bearings use wave-shaped cages made of steel plates by stamping. Two identical cages are riveted together by rivets to guide the steel balls to rotate on the bearing raceway. The wave-shaped cage is obtained by stamping a blank made of a metal plate such as a steel plate or a stainless steel plate into a circular ring shape, and at the same time forming a curved semi-circular arc in the circumferential direction. The semi-circular arc part is called a ball pocket, and the flat part and the semi-circular arc part are alternately continuous in the circumferential direction. The flat parts of a pair of wave-shaped cages are connected and fixed together by rivets in a butted state with each other. The space enclosed by the semi-circular arc part of one cage and the semi-circular arc part of the other cage accommodates the steel balls, so that the steel balls run on the raceway and do not contact each other, avoiding collisions and frictions between the steel balls.

[0003] Riveting is a common mechanical connection method, and the wave-shaped cage of a rolling ball bearing is also a method widely used in the bearing industry. At present, for the inspection of the connection performance after the riveting of the wave-shaped cage, the methods of visual inspection or visual inspection with a magnifying glass are usually adopted to observe whether there are defects in the rivet head, whether the surface is round, and whether the shape is regular after riveting. There is a lack of corresponding detection methods and standards, and there is no corresponding detection device. With the development of modern industrial technology, the requirements for rolling bearings that support the rotation of the main shaft are getting higher and higher. It is required that the bearings work reliably and adapt to various harsh working environments. In some working conditions, such as when the bearing works under frequent commutation, rapid acceleration, rapid deceleration, vibration, etc., the rolling elements inside the bearing will generate a great impact on the cage. In this case, if the riveted cage is unreliable, the phenomenon of rivet or cage fracture will occur. Using visual inspection cannot meet the inspection requirements for the riveting performance. Therefore, the riveting quality of the wave-shaped cage should be controlled by strict methods and specifications.

[0004] At present, for the inspection of the connection performance of riveting, a connection performance strength test is mainly adopted. The specific method is to rivet two plates with the same thickness and performance as the material to be riveted using rivets, and then apply a certain lateral tension to both ends of the steel plate until the connecting plate breaks, and record the change of the tension during the measurement process. Since the wave-shaped cage is circular, there are uneven but evenly distributed wavy protrusions on the ring, there are planes between the protrusions, and there are rivet holes on the planes for riveting connection. After two wave-shaped cages are riveted and connected, due to the limitation of the surface shape of the cage, the cage cannot be clamped, nor can a lateral tension be applied for a shear test. Therefore, it is impossible to use a common connection strength performance test to detect the riveting performance. At present, there is no suitable technical solution for the riveting performance detection and riveting strength test of wave-shaped cages. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a device and method for detecting the riveting quality of a wave-shaped cage for its special structure. To solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A wave-shaped cage riveting quality detection device includes a frame. A vertical moving mechanism is arranged below the frame. The upper end of the vertical moving mechanism is fixedly provided with a lower inspection body, and the lower inspection body can be driven by the vertical moving mechanism to move up and down. A torque detection mechanism is arranged above the frame. The lower end of the torque detection mechanism is fixedly provided with an upper inspection body, and the upper inspection body can be driven by the torque detection mechanism to rotate horizontally; the upper end of the lower inspection body is provided with a horizontal lower clamping plane. Along the circumferential direction of the ring, a number of concave lower ball pocket nests are evenly spaced on the lower clamping plane, and concave lower rivet head nests are arranged between the lower ball pocket nests; the lower end of the upper inspection body is provided with a horizontal upper clamping plane. Along the circumferential direction of the ring, a number of concave upper ball pocket nests are evenly spaced on the upper clamping plane, and concave upper rivet head nests are arranged between the upper ball pocket nests; the positions between the lower ball pocket nests and the upper ball pocket nests correspond one by one, and the positions between the lower rivet head nests and the upper rivet head nests correspond one by one.

[0007] Preferably, the vertical moving mechanism includes a vertical guide rail fixedly arranged on the frame and a lower inspection body base moving along the vertical guide rail. The lower inspection body base is driven by a lead screw nut, and the lower inspection body is installed on the lower inspection body base.

[0008] Further, the lower inspection body is installed on the lower inspection body base by spline sliding fit.

[0009] Preferably, the torque detection mechanism includes a torque sensor, and the torque sensor is driven by a servo reduction motor fixedly arranged on the frame to rotate horizontally, and the upper inspection body is fixedly connected to the torque sensor.

[0010] A detection method for the riveting quality of a wavy cage, the detection device includes a lower inspection body driven to move up and down by a vertical movement mechanism and an upper inspection body driven to rotate in the horizontal direction by a torque detection mechanism. A horizontal lower clamping plane is provided at the upper end of the lower inspection body, and a horizontal upper clamping plane is provided at the lower end of the upper inspection body. A number of concave lower ball pocket nests are evenly spaced along the circumferential direction of the ring on the lower clamping plane, and concave lower rivet head nests are provided between the lower ball pocket nests. A number of concave upper ball pocket nests are evenly spaced along the circumferential direction of the ring on the upper clamping plane, and concave upper rivet head nests are provided between the upper ball pocket nests. The positions between the lower ball pocket nests and the upper ball pocket nests correspond one by one, and the positions between the lower rivet head nests and the upper rivet head nests correspond one by one. The detection method includes the following steps:

[0011] ① Use rivets to perform dry riveting on a pair of wavy cages outside the bearing in the unassembled state. After riveting, the rivet rod of the rivet forms rivet heads on the upper and lower surfaces of the wavy cage respectively;

[0012] ② Place the wavy cage that has completed dry riveting on the lower clamping plane. The ball pockets on the lower side of the wavy cage are accommodated in the lower ball pocket nests, and the lower rivet heads formed after riveting are accommodated in the lower rivet head nests;

[0013] ③ The vertical movement mechanism drives the lower inspection body to move upward until the upper surface of the wavy cage contacts the upper clamping plane. The ball pockets on the upper side of the wavy cage are accommodated in the upper ball pocket nests, and the upper rivet heads formed after riveting are accommodated in the upper rivet head nests;

[0014] ④ The lower inspection body remains fixed, and the torque detection mechanism drives the upper inspection body to rotate in the circumferential direction of the horizontal plane. The torque detection mechanism gradually applies torque to the upper inspection body. The torque applied to the upper inspection body is transmitted to the rivet rod connecting the upper and lower wavy cages through the wavy cage. As the torque increases, the rivet rod undergoes plastic deformation until it is cut off, and the torque detection mechanism records the torque value when the rivet rod is cut off;

[0015] ⑤ Calculate the anti-shearing strength of the rivet to be detected according to the torque formula and the anti-shearing strength formula;

[0016] ⑥ Select rivets of different materials and diameters, and perform riveting under different riveting pressures. Detect and record the shear-off torques and the anti-shearing strengths of the rivets in different specifications and riveting states according to the above steps ① to ⑤;

[0017] ⑦ Analyze and compare the shear-off torque and rivet anti-shearing strength data in different specifications and riveting states, and select the best riveting process parameters.

[0018] Preferably, in step ①, the number of rivets for blind riveting a pair of wave-shaped cages is 2, and the rivets are riveted into two rivet holes symmetrically or nearly symmetrically distributed on the wave-shaped cage.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: It can effectively adapt to the complex and special outer shape structure of the wave-shaped cage, effectively clamp the wave-shaped cage after riveting connection, and detect the shear strength of the rivets for riveting the wave-shaped cage by measuring the torque and calculating through formulas. By analyzing and comparing the measured data, the effective control of the riveting quality is realized, effectively solving the problem in the prior art that the riveting quality of the wave-shaped cage cannot be directly detected and tested, and filling the technical gap in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of the overall structure of the present invention;

[0021] Figure 2 : Schematic diagram of the three-dimensional structure of the lower inspection body;

[0022] Figure 3 : Schematic diagram of the planar structure of the wave-shaped cage;

[0023] Figure 4 : Schematic diagram of the three-dimensional sectional structure of the blind-riveted wave-shaped cage;

[0024] Figure 5 : Schematic diagram of the partial structure at A.

[0025] In each figure:

[0026] 1. Frame;

[0027] 2. Vertical moving mechanism; 21. Base of the lower inspection body; 22. Vertical guide rail; 23. Lead screw nut; 24. Spline;

[0028] 3. Lower inspection body; 31. Lower clamping plane; 32. Lower ball pocket; 33. Lower rivet head pocket;

[0029] 4. Torque detection mechanism; 41. Torque sensor; 42. Servo reduction motor;

[0030] 5. Upper inspection body; 51. Upper clamping plane; 52. Upper ball pocket; 53. Upper rivet head pocket;

[0031] 6. Wave-shaped cage; 61. Ball pocket; 62. Rivet hole;

[0032] 7. Rivet; 71. Rivet rod; 72. Rivet head. DETAILED DESCRIPTION OF THE INVENTION

[0033] For a better understanding of the present invention, a clearer and more complete description will be given below in conjunction with the accompanying drawings and specific embodiments. The listed embodiments are the preferred forms of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention. Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship shall be regarded as the scope of implementation of the present invention without substantial change in the technical content.

[0034] The present invention provides a riveting quality detection device for a wavy cage. Referring to Figure 1 as shown, it includes a frame 1. A vertical moving mechanism 2 is arranged below the frame 1. The upper end of the vertical moving mechanism 2 is provided with a lower inspection body 3. The lower inspection body 3 can be driven by the vertical moving mechanism 2 to move up and down. A torque detection mechanism 4 is arranged above the frame 1. The lower end of the torque detection mechanism 4 is provided with an upper inspection body 5. The upper inspection body 5 can be driven by the torque detection mechanism 4 to rotate horizontally; Referring to Figure 3 as shown, the upper end of the lower inspection body 3 is provided with a horizontal lower clamping plane 31. Along the circumferential direction of the ring, a number of concave lower ball pocket nests 32 are evenly spaced. An concave lower rivet head nest 33 is arranged between the lower ball pocket nests 32. The lower end of the upper inspection body 5 is provided with a horizontal upper clamping plane 51. Along the circumferential direction of the ring, a number of concave upper ball pocket nests 52 are evenly spaced. An concave upper rivet head nest 53 is arranged between the upper ball pocket nests 52. The positions between the lower ball pocket nests 32 and the upper ball pocket nests 52 correspond one by one, and the positions between the lower rivet head nest 33 and the upper rivet head nest 53 correspond one by one. In a specific application, the lower inspection body 3 and the upper inspection body 5 are matched with a wavy cage 6 of a certain model and specification. Referring to Figure 3 、 Figure 4As shown, the existing conventional corrugated cage 6 is obtained by blanking a blank made of a metal plate such as a steel plate or a stainless steel plate into a circular ring shape by stamping, and at the same time forming a curved semi-circular arc in the circumferential direction. The semi-circular arc part is called the ball pocket 61. The flat part between the ball pockets 61 and the semi-circular arc part of the ball pocket 61 are continuously alternated in the circumferential direction. A rivet hole 62 is provided in the flat part between the ball pockets 61. The flat parts of a pair of corrugated cages 6 are connected and fixed together by a rivet 7 in a state where they are butt-jointed to each other. Both ends of the rivet 7 form a rivet head 72 outside the rivet hole 62 of the corrugated cage 6. The distribution of the ball pocket nests and the rivet head nests on the clamping plane of the inspection fixture corresponds to a corrugated cage 6 of a certain model specification. The shapes of the lower ball pocket nest 32 and the upper ball pocket nest 52 are matched with the shape of the ball pocket 61 of the corresponding specification corrugated cage 6. The nominal radius dimension is the sum of the upper limit value of the nominal radius of the ball pocket 61 and the upper limit value of the plate thickness of the corrugated cage 6. The shape and size of the lower rivet head nest 33 and the upper rivet head nest 53 are matched with the rivet head 72, and are slightly larger than the rivet head 72 formed by the rivet 7 of the usual specification. Its beneficial effect lies in that it can effectively adapt to the complex and special external structure of the corrugated cage 6, effectively clamp the corrugated cage 6 through the inspection fixture, and apply a torsional force in the horizontal direction to the corrugated cage 6 through the torque detection mechanism 4, solving the technical problem that the riveting connection quality of the corrugated cage 6 in the prior art cannot be directly detected.

[0035] In a preferred embodiment, referring to Figure 1 As shown, the vertical movement mechanism 2 includes a vertical guide rail 21 fixedly arranged on the frame 1 and a lower inspection fixture base 22 arranged on the vertical guide rail 21. The lower inspection fixture base 22 is driven to move up and down along the vertical guide rail 21 through a lead screw nut 23. The lower inspection fixture 3 is slidably fitted and installed on the lower inspection fixture base 21 through a spline 24. The lower inspection fixture 3 is not subject to an upward force during the movement and detection process. Therefore, the sliding fit connection through the spline 24 will not affect the detection work, and this structure can make the lower inspection fixture 3 easier to be removed from the lower inspection fixture base 21, facilitating replacement, and at the same time can withstand a large torque and is not easily damaged.

[0036] The function of the torque detection mechanism 4 is to apply a torsional force for horizontal rotation to the upper inspection fixture 5 and detect and record the torque. In a preferred embodiment, referring to Figure 1 As shown, the torque detection mechanism 4 includes a torque sensor 41. The torque sensor 41 is driven to rotate in the horizontal direction by a servo reduction motor 42 fixedly arranged on the frame 1. The upper inspection fixture 5 is fixedly connected to the torque sensor 41. This setting method has high detection accuracy and can monitor and record the detection process. In other embodiments, the torque detection mechanism 4 can also be a torque wrench or the like.

[0037] The method of using the corrugated cage 6 riveting quality detection device for detection includes the following steps:

[0038] ① Use a pair of rivets 7 to perform dry riveting on the corrugated cage 6. After riveting, the rivet rod 71 of the rivet 7 forms a rivet head 72 at the rivet holes 62 on the upper and lower surfaces of the corrugated cage 6. Here, dry riveting refers to the riveting connection carried out by placing the corrugated cage 6 outside the bearing. The influencing factors such as people, machines, materials, and methods used in the riveting process are the same as those in the formal bearing riveting connection. The inner ring, outer ring, and steel balls of the bearing have no interference or influence on the quality of the riveting connection itself before and after the riveting connection. Therefore, the dry riveting state is the same as the riveting performance in the actual installation state. By detecting the riveting quality in the dry riveting state, the riveting performance in the actual installation state can be obtained.

[0039] ② Place the corrugated cage 6 that has completed dry riveting on the lower clamping plane 31. The ball pocket 61 on the lower side of the corrugated cage 6 is accommodated in the lower ball pocket 32, and the lower rivet head 72 formed after riveting is accommodated in the lower rivet head pocket 33.

[0040] ③ The vertical moving mechanism 2 drives the lower inspection body 3 to move upward until the upper surface of the corrugated cage 6 contacts the upper clamping plane 51. The ball pocket 61 on the upper side of the corrugated cage 6 is accommodated in the upper ball pocket 32, and the upper rivet head 71 formed after riveting is accommodated in the upper rivet head pocket 53. At this time, the corrugated cage 6 is clamped between the lower inspection body 3 and the upper inspection body 5.

[0041] ④ Keep the lower inspection body 3 fixed, and drive the upper inspection body 5 to rotate horizontally through the torque detection mechanism 4. The torque detection mechanism 4 gradually applies torque to the upper inspection body 5. The torque applied to the upper inspection body 5 is transmitted to the rivet rod 72 connecting the upper and lower corrugated cages 6 through the corrugated cage 6. As the torque increases, the rivet rod 72 undergoes plastic deformation until it is cut off, and the torque detection mechanism 7 records the torque value when the rivet rod 72 is cut off.

[0042] ⑤ Calculate the shear strength of the detected rivet 7 according to the torque formula and the shear strength formula. According to common knowledge, the torque formula is torque = torsion × lever arm. For a corrugated cage 6 of a certain model and specification, the distance from its center point to the rivet hole 62 is known, that is, the lever arm is known. Therefore, when the torque acting on the corrugated cage 6 is measured, the force acting on the rivet 7 can be calculated through calculation. Record the torque value when the rivet rod 72 is cut off, and the magnitude of the force received by the rivet rod 72 when it is cut off can be calculated. The shear strength calculation formula is: shear strength = shear force ÷ cross-sectional area. For a rivet 7 with a known diameter, when the shear force is calculated, the shear strength value can be calculated.

[0043] ⑥ Select rivets 7 of different materials and diameters, and perform riveting under different riveting pressures. Calculate and record the shearing torque and the anti-shearing strength of the rivets 7 under different specifications and riveting states according to the above steps ① to ⑤.

[0044] ⑦ Analyze and compare the shearing torque and anti-shearing strength data of the rivets 7 under different specifications and riveting states, and select the best riveting process parameters.

[0045] When the wave-shaped cage 6 is subjected to blind riveting, it can be full riveting with all the rivets 7 being riveted. However, when there are too many rivets 7 during full riveting, the riveting forces are uneven, resulting in scattered data and unsatisfactory detection effects. It is also possible to use a single rivet 7 for riveting and then conduct a break-off test. However, during the break-off process, the stability of the wave-shaped cage 6 is not good, and the test data is inaccurate. In a preferred embodiment, the number of rivets 7 for blind riveting a pair of wave-shaped cages 6 is 2, which are riveted in two rivet holes symmetrically or nearly symmetrically distributed on the wave-shaped cage 6. At this time, the stability of the test data is the best, and the detection effect is better.

[0046] In a specific test, for a wave-shaped cage 6 of a certain specification, rivets 7 of two specifications, namely ML15 steel material with a diameter of Φ1.2 mm and SUS304 material with a diameter of Φ1.2 mm, were respectively detected. At riveting pressures of 5000 N, 6000 N, and 7000 N, 2 rivets 7 were riveted in the rivet holes 62 symmetrically distributed on the wave-shaped cage 6. The center distance between the wave-shaped cage 6 and the center of the rivet hole 62 was 46.5 mm. The torque value when the rivets 7 were sheared was measured, and the shearing force and the anti-shearing strength of the rivets 7 were calculated according to the formula. The test results are as follows in the table:

[0047] In order to compare the anti-shearing performance of the rivets 7 before and after riveting, a shearing test was simultaneously conducted on specimens of the same material and diameter as the detected rivets 7 in the non-riveted state. The test results are as follows in the table:

[0048]

[0049]

[0050] The test results show that due to the action of the riveting pressure, the anti-shearing strength of the rivets 7 after riveting is improved to a certain extent. When different riveting pressures are used for riveting, there are differences in the anti-shearing performance of the rivets 7. However, it is not that the greater the riveting pressure, the greater the anti-shearing strength of the rivets 7. Excessive riveting pressure will instead cause a decline in the riveting performance of the rivets 7. In specific applications, for a wave-shaped cage 6 of a certain specification, the best riveting process parameters can be selected according to the results of multiple test comparisons.

[0051] In summary, the wave-shaped cage riveting quality detection device and detection method provided by the present invention effectively solve the problem that the existing technical means cannot directly detect the riveting quality of the wave-shaped cage, and have high utilization value and practical significance.

[0052] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A wavy cage riveting quality detection device, comprising a frame (1), characterized in that: A vertical movement mechanism (2) is provided below the frame (1). A lower inspection body (3) is fixedly provided at the upper end of the vertical movement mechanism (2), and the lower inspection body (3) can be driven by the vertical movement mechanism (2) to move up and down. A torque detection mechanism (4) is provided above the frame (1). An upper inspection body (5) is fixedly provided at the lower end of the torque detection mechanism (4), and the upper inspection body (5) can be driven by the torque detection mechanism (4) to rotate horizontally. A horizontal lower clamping plane (31) is provided at the upper end of the lower inspection body (3). A number of concave lower ball pocket nests (32) are evenly spaced along the circumferential direction on the lower clamping plane (31). Concave lower rivet head nests (33) are provided between the lower ball pocket nests (32). A horizontal upper clamping plane (51) is provided at the lower end of the upper inspection body (5). A number of concave upper ball pocket nests (52) are evenly spaced along the circumferential direction on the upper clamping plane (51). Concave upper rivet head nests (53) are provided between the upper ball pocket nests (52). The positions between the lower ball pocket nests (32) and the upper ball pocket nests (52) correspond one by one, and the positions between the lower rivet head nests (33) and the upper rivet head nests (53) correspond one by one.

2. The wavy cage riveting quality detection device according to claim 1, characterized in that: The vertical movement mechanism (2) includes a vertical guide rail (22) fixedly provided on the frame (1) and a lower inspection body base (21) provided on the vertical guide rail (22). The lower inspection body base (21) is driven by a lead screw nut (23) to move up and down along the vertical guide rail (22), and the lower inspection body (3) is installed on the lower inspection body base (21).

3. The wavy cage riveting quality detection device according to claim 2, characterized in that: The lower inspection body (3) is slidably fitted and installed on the lower inspection body base (21) through a spline (24).

4. The wavy cage riveting quality detection device according to claim 1, characterized in that: The torque detection mechanism (4) includes a torque sensor (41). The torque sensor (41) is driven by a servo reduction motor (42) fixedly provided on the frame (1) to rotate in the horizontal plane direction, and the upper inspection body (5) is fixedly connected to the torque sensor (41).

5. A detection method for a wavy cage riveting quality detection device, characterized in that: The detection device includes a lower inspection body (3) driven by a vertical movement mechanism (2) to move up and down and an upper inspection body (5) driven by a torque detection mechanism (4) to rotate horizontally. A horizontal lower clamping plane (31) is provided at the upper end of the lower inspection body (3). A number of concave lower ball pocket nests (32) are evenly spaced along the circumferential direction on the lower clamping plane (31). Concave lower rivet head nests (33) are provided between the lower ball pocket nests (32). A horizontal upper clamping plane (51) is provided at the lower end of the upper inspection body (5). A number of concave upper ball pocket nests (52) are evenly spaced along the circumferential direction on the upper clamping plane (51). Concave upper rivet head nests (53) are provided between the upper ball pocket nests (52). The positions between the lower ball pocket nests (32) and the upper ball pocket nests (52) correspond one by one, and the positions between the lower rivet head nests (33) and the upper rivet head nests (53) correspond one by one. The detection method includes the following steps: ① Use a rivet (7) to perform blind riveting on a pair of wavy cages (6) outside the bearing in the unassembled state. After riveting, the rivet shank (71) of the rivet (7) forms rivet heads (72) on the upper and lower surfaces of the wavy cage (6) respectively; ② Place the wavy cage (6) that has completed blind riveting on the lower clamping plane (31). The ball pockets (61) on the lower side of the wavy cage (6) are received in the lower ball pocket nests (32), and the lower rivet heads (72) formed after riveting are received in the lower rivet head nests (33); ③ The vertical movement mechanism (2) drives the lower inspection body (3) to move upward until the upper surface of the wavy cage (6) comes into contact with the upper clamping plane (51). The ball pockets (61) on the upper side of the wavy cage (6) are received in the upper ball pocket nests (52), and the upper rivet heads (72) formed after riveting are received in the upper rivet head nests (53); ④ Keep the lower inspection body (3) fixed, and drive the upper inspection body (5) to rotate horizontally through the torque detection mechanism (4). The torque detection mechanism (4) gradually applies torque to the upper inspection body (5). The torque applied to the upper inspection body (5) is transmitted to the rivet shank (71) connecting the upper and lower wavy cages (6) through the wavy cage (6). As the torque increases, the rivet shank (71) undergoes plastic deformation until it is sheared off, and the torque detection mechanism (4) records the torque value when the rivet shank (71) is sheared off; ⑤ Calculate the shear strength of the tested rivet (7) according to the torque formula and the shear strength formula; ⑥ Select rivets (7) of different materials and diameters, and perform riveting under different riveting pressures. Detect and record the shear torque and the shear strength of the rivet (7) under different specifications and riveting states according to the above steps ① to ⑤; ⑦ Analyze and compare the data of the shear torque and the shear strength of the rivets (7) under different specifications and riveting states, and select the best riveting process parameters.

6. The detection method for a wavy cage riveting quality detection device according to claim 5, characterized in that: In the step ①, the number of rivets (7) for blind riveting a pair of wavy cages (6) is 2, and they are riveted in two rivet holes symmetrically or nearly symmetrically distributed on the wavy cage (6).

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