Play measuring device

Abstract

The present disclosure relates to the technical field of bearing assembly, and particularly relates to a clearance measuring device. The clearance measuring device provided by the present disclosure comprises a feeding mechanism, a first overturning mechanism, a first moving mechanism, a first measuring mechanism, a second measuring mechanism, a second moving mechanism, a carrying mechanism, a second overturning mechanism and a discharging mechanism. The measuring mechanism comprises a clamping mechanism, a first pushing mechanism and a second pushing mechanism. The first pushing mechanism comprises a first driving member, a first abutting member and a first spring. The first abutting member is used for abutting with an outer ring. The output end of the first driving member is provided with the first spring. The second pushing mechanism comprises a second driving member, a distance sensor and a second abutting member. The output end of the second driving member is connected with the second abutting member. The distance sensor is arranged on the second abutting member. The present disclosure can complete the whole process from feeding to discharging of the bearing without manual intervention, and greatly improves the production efficiency.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of bearing assembly, in particular to a clearance measuring device. BACKGROUND

[0002] Radial clearance refers to the clearance of the bearing in the radial direction, that is, the relative displacement amount of the inner shaft and the outer ring of the bearing in the radial direction perpendicular to the axis.

[0003] In the process of detecting the clearance of the bearing, the displacement of the outer ring or the inner shaft of the bearing needs to be detected by a micrometer or the like while forces in different directions are applied to the inner shaft and the outer ring. According to the relative displacement between the inner and outer rings of the bearing, the clearance of the bearing is obtained. The fixing and force applying operations of the inner shaft and the outer ring of the bearing during the test are usually manual, which causes time-consuming and laborious process. SUMMARY

[0004] The present disclosure provides a clearance measuring device to at least solve the above technical problems existing in the prior art.

[0005] The present disclosure provides a clearance measuring device for measuring the clearance of a bearing, the bearing comprising an inner shaft and an outer ring, comprising:

[0006] A feeding mechanism for carrying the bearing to a first turnover mechanism;

[0007] A first turnover mechanism for turning the bearing by a set angle in a first predetermined direction;

[0008] A first moving mechanism for moving the bearing to an initial station;

[0009] A first measuring mechanism having a first measuring station for measuring the clearance of the first steel ball position of the bearing;

[0010] A second measuring mechanism disposed in an axial direction offset from the first measuring mechanism, the second measuring mechanism having a second measuring station for measuring the clearance of the second steel ball position of the bearing;

[0011] A second moving mechanism for carrying the bearing to a second turnover mechanism;

[0012] A carrying mechanism for moving the bearing from the initial station to the first measuring station, the second measuring station, or a measuring completion station;

[0013] A second turnover mechanism for turning the bearing by a set angle in a direction opposite to the first predetermined direction;

[0014] A discharging mechanism for carrying the measured bearing;

[0015] The first measuring mechanism and the second measuring mechanism each comprise a clamping mechanism, a first pushing mechanism and a second pushing mechanism, the clamping mechanism is used for clamping two ends of the inner shaft, the first pushing mechanism and the second pushing mechanism are respectively located at two ends of the bearing in the radial direction, the first pushing mechanism comprises a first driving member, a first abutting member and a first spring, the first abutting member is used for abutting against the outer ring, the first spring is arranged between an output end of the first driving member and the first abutting member, the second pushing mechanism comprises a second driving member, a distance sensor and a second abutting member, an output end of the second driving member is connected with the second abutting member, and the distance sensor is arranged on the second abutting member.

[0016] Further, the first abutting member comprises a moving plate and a guide column, the moving plate is arranged on the output end of the first driving member;

[0017] The moving plate is provided with a first baffle and a second baffle, the first baffle and the second baffle are arranged at intervals, the first baffle is provided with a first guide hole, the second baffle is provided with a second guide hole, and the guide column is slidably arranged in the first guide hole and the second guide hole;

[0018] The guide column is provided with a first positioning member and a second positioning member, the first positioning member and the second positioning member are fixed with the guide column, the first positioning member is arranged between the first baffle and the second baffle, the second baffle is arranged between the first positioning member and the second positioning member, the first spring is sleeved on the guide column, and two ends of the first spring respectively abut against the first positioning member and the second baffle.

[0019] Further, a driving mechanism for driving the outer ring to rotate is further included;

[0020] The driving mechanism comprises a guide rail, a guide block, a driving cylinder, a first motor and a driving wheel, the guide block is in sliding fit with the guide rail, an extension end of the driving cylinder is connected with the guide block, the first motor is arranged on the guide block, and an output end of the first motor is connected with the driving wheel;

[0021] The driving wheel is used for driving the outer ring to rotate when abutting against the outer ring.

[0022] Further, the feeding mechanism comprises a first transmission module and a first carrying module;

[0023] The first transmission module comprises a conveying belt and a driving motor for driving the conveying belt to move, and the bearing is arranged on the conveying belt;

[0024] The first carrying module comprises a first sliding rail, a first sliding block and a first cylinder, the first sliding block is in sliding cooperation with the first sliding rail, the first sliding rail extends along a first direction X, and the first cylinder is used for driving the first sliding block to move along the first direction X;

[0025] The first sliding block is provided with a second sliding rail, a second sliding block and a second cylinder, the second sliding block is in sliding cooperation with the second sliding rail, the second sliding rail extends along a third direction Z, and the second cylinder is used for driving the second sliding block to move along the third direction Z;

[0026] The second sliding block is provided with a first clamping jaw, and the first clamping jaw is used for moving a bearing located on the conveying belt to a first turnover mechanism.

[0027] Further, the first turnover mechanism comprises a first turnover seat, a first turnover cylinder and a first pushing cylinder, the first turnover cylinder is used for driving the first turnover seat to turn over, the first turnover seat is provided with a first accommodating groove and a first through hole penetrating through the first accommodating groove, and the first accommodating groove is used for accommodating the bearing;

[0028] When the first turnover cylinder turns over the first turnover seat by a predetermined angle along a first direction, an extension end of the first pushing cylinder is arranged correspondingly to the through hole, so that when the extension end of the first pushing cylinder extends, the bearing is pushed to a first moving mechanism.

[0029] Further, the first moving mechanism comprises a first moving module;

[0030] The first moving module comprises a third sliding rail, a third sliding block and a third cylinder, the third sliding rail is in sliding cooperation with the third sliding block, the third sliding rail extends along a first direction X, and the third cylinder is used for driving the third sliding block to move along the first direction X;

[0031] The third sliding block is provided with a first fixing seat, and the first fixing seat is used for accommodating the bearing pushed out from the first turnover mechanism;

[0032] The third sliding block is provided with a first pressing cylinder, an extension end of the first pressing cylinder is provided with a first pressing block, the first pressing block is arranged opposite to the first fixing seat, and the third cylinder is used for driving the first pressing block to move towards a direction close to or away from the first fixing seat so as to clamp or release the bearing.

[0033] Further, the first moving mechanism comprises a second moving module, and the second moving module comprises a second pushing cylinder and a second fixing seat, the second pushing cylinder is arranged correspondingly to the second fixing seat;

[0034] When the third cylinder pushes the third sliding block to move the bearing to a position opposite to the second push cylinder, the telescopic end of the second push cylinder extends to push the bearing to the second fixed base, and the second fixed base is provided with a first groove, and the first groove forms the initial work station.

[0035] Further, the conveying mechanism comprises a fourth sliding rail, a fourth sliding block and a fourth cylinder, the fourth sliding block is in sliding cooperation with the fourth sliding rail, the fourth sliding rail extends along a first direction X, and the fourth cylinder is used to drive the fourth sliding block to move along the first direction X.

[0036] The fourth sliding block is provided with a fifth sliding rail, a fifth sliding block and a fifth cylinder, the fifth sliding block is in sliding cooperation with the fifth sliding rail, the fifth sliding rail extends along a third direction Z, and the fifth cylinder is used to drive the fifth sliding block to move along the third direction Z.

[0037] The fifth sliding block is provided with a second clamping jaw, and the second clamping jaw is used to move the bearing located in the second fixed base to a first measuring work station, a second measuring work station or a measuring completion work station.

[0038] Further, the second moving mechanism comprises a sixth sliding rail, a sixth sliding block and a sixth cylinder, the sixth sliding rail is in sliding cooperation with the sixth sliding block, the sixth sliding rail extends along the first direction X, and the sixth cylinder is used to drive the sixth sliding block to move along the first direction X.

[0039] The sixth sliding block is provided with a third fixed base, the third fixed base is used to receive the bearing moved out from the conveying mechanism, the third fixed base forms a second groove, and the second groove forms the measuring completion work station.

[0040] The sixth sliding block is provided with a second pressing cylinder, a second pressing block is arranged at the telescopic end of the second pressing cylinder, the second pressing block is arranged opposite to the third fixed base, and the second pressing cylinder is used to drive the second pressing block to move towards a direction close to or away from the third fixed base so as to clamp or release the bearing.

[0041] Further, a third push cylinder is arranged opposite to the third fixed base.

[0042] When the sixth cylinder pushes the sixth sliding block to move the bearing to a position opposite to the third push cylinder, the telescopic end of the third push cylinder extends to push the bearing to the second turnover mechanism.

[0043] Further, the second turnover mechanism comprises a second turnover base and a second turnover cylinder, the second turnover cylinder is used for driving the second turnover base to turn over, and the second turnover base is provided with a second accommodating groove used for accommodating the bearing pushed out by the third push cylinder.

[0044] Further, the discharging mechanism comprises a seventh sliding rail, a seventh sliding block and a seventh cylinder, the seventh sliding block is in sliding cooperation with the seventh sliding rail, the seventh sliding rail extends along a first direction X, and the seventh cylinder is used for driving the seventh sliding block to move along the first direction X.

[0045] The seventh sliding block is provided with an eighth sliding rail, an eighth sliding block and an eighth cylinder, the eighth sliding block is in sliding cooperation with the eighth sliding rail, the eighth sliding rail extends along a third direction Z, and the eighth cylinder is used for driving the eighth sliding block to move along the third direction Z.

[0046] The eighth sliding block is provided with a third clamping jaw, and the third clamping jaw is used for moving the bearing located on the second turnover mechanism to the discharging disc.

[0047] The technical scheme provided by the clearance measuring device provided by the embodiment of the present disclosure has the following advantages compared with the prior art:

[0048] The clearance measuring device provided by the embodiment of the present disclosure realizes the compatibility adaptation of bearings of different specifications by double-station measurement, automatic process, elastic abutment design and digital control, improves the measurement accuracy and efficiency, and meets the quality detection requirements of high precision and high efficiency in industrial production.

[0049] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0050] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings. In the drawings, several embodiments of the present disclosure are shown by way of example and not limitation, in which:

[0051] In the drawings, the same or corresponding reference numerals refer to the same or corresponding parts.

[0052] Figure 1 A structure diagram of the clearance measuring device provided by the embodiment of the present disclosure is shown Figure 1 ;

[0053] Figure 2 A structure diagram of the clearance measuring device provided by the embodiment of the present disclosure is shown Figure 2 ;

[0054] Figure 3 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown Figure 1 ;

[0055] Figure 4 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown Figure 2 ;

[0056] Figure 5 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0057] Figure 6 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0058] Figure 7 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0059] Figure 8 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0060] Figure 9 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0061] Figure 10 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0062] Figure 11 A structure diagram of the first measuring mechanism or the second measuring mechanism in the play measuring device provided by the embodiment of the present disclosure is shown

[0063] The figure label explanation: 1, the feeding mechanism; 11, the first transmission module; 111, the driving motor; 112, the conveying belt; 12, the first carrying module; 121, the first sliding rail; 122, the first sliding block; 123, the first air cylinder; 124, the second sliding rail; 125, the second sliding block; 126, the second air cylinder; 127, the first clamping jaw;

[0064] 2, first turnover mechanism; 21, first turnover seat; 211, first containing groove; 212, first through hole; 22, first turnover air cylinder; 13, first push air cylinder; 3, first moving mechanism; 31, first moving module; 311, third sliding rail; 312, third sliding block; 313, third air cylinder; 314, first fixed seat; 315, first pressing air cylinder; 316, first positioning air cylinder; 32, second moving module; 321, second push air cylinder; 322, second fixed seat; 323, first groove; 4, first measuring mechanism; 41, clamping mechanism; 42, first driving piece; 43, first abutting piece; 431, moving plate; 432, guide column; 433, first baffle; 434, second baffle; 435, first positioning piece; 436, second positioning piece; 44, first spring; 45, second driving piece; 46, distance sensor; 47, second abutting piece; 481, guide rail; 482, guide block; 483, first motor; 484, driving wheel; 485, driving air cylinder; 5, second measuring mechanism; 6, second moving mechanism; 61, sixth sliding rail; 62, sixth sliding block; 63, sixth air cylinder; 64, third fixed seat; 65, second groove; 66, third push air cylinder; 67, second pressing air cylinder; 7, carrying mechanism; 71, fourth sliding rail; 72, fourth sliding block; 73, fourth air cylinder; 74, fifth sliding rail; 75, fifth sliding block; 76, fifth air cylinder; 77, second clamping jaw; 8, second turnover mechanism; 81, second turnover seat; 82, second turnover air cylinder; 9, discharging mechanism; 91, seventh sliding rail; 92, seventh sliding block; 93, seventh air cylinder; 94, eighth sliding rail; 95, eighth sliding block; 96, eighth air cylinder; 97, third clamping jaw; 98, discharging disc; 10, bearing; 101, inner shaft; 102, outer ring. DETAILED DESCRIPTION

[0065] To make the objectives, characteristics and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0066] In conjunction with Figure 1 , Figure 2 Figure 3 and Figure 4 , it is shown that the present disclosure provides a clearance measuring device for measuring the clearance of a bearing 10, the bearing 10 comprising an inner shaft 101 and an outer ring 102, the clearance measuring device comprising a feeding mechanism 1, a first moving mechanism 3, a first measuring mechanism 4, a second measuring mechanism 5, a second moving mechanism 6, a carrying mechanism 7, a second turnover mechanism 8 and a discharging mechanism 9.

[0067] The feeding mechanism 1 is used to carry the bearing 10 to the first turnover mechanism 2; the first turnover mechanism 2 is used to turn the bearing 10 by a set angle along a first predetermined direction; the first moving mechanism 3 is used to move the bearing 10 to an initial station; the first measuring mechanism 4 has a first measuring station for measuring the clearance of the first ball position of the bearing 10;

[0068] The second measuring mechanism 5 is arranged in the axial direction of the bearing 10 in a staggered manner with the first measuring mechanism 4, and the second measuring mechanism 5 has a second measuring station for measuring the clearance of the second ball position of the bearing 10. The first measuring mechanism 4 and the second measuring mechanism 5 are arranged in the axial direction of the bearing in a staggered manner, and can respectively measure the clearances of the first ball position and the second ball position of the bearing 10.

[0069] The second moving mechanism 6 is used to carry the bearing 10 to the second turnover mechanism 8; the carrying mechanism 7 is used to move the bearing 10 from the initial station to the first measuring station, the second measuring station or the measuring completion station; the second turnover mechanism 8 is used to turn the bearing 10 by a set angle in a direction opposite to the first predetermined direction; and the discharging mechanism 9 is used to carry the bearing 10 after measurement. The feeding mechanism 1, the first moving mechanism 3, the second moving mechanism 6, the carrying mechanism 7 and the discharging mechanism 9 form a closed-loop carrying system, which can complete the whole process of bearing from feeding to discharging without manual intervention, greatly improving the production efficiency. The initial station, the first measuring station, the second measuring station and the measuring completion station can simultaneously process bearings at different stages, forming a flow line operation mode. For example, while the carrying mechanism 7 moves the bearing from the initial station to the first measuring station, the feeding mechanism 1 can simultaneously load a new bearing, reducing the idle time of the equipment.

[0070] The first turnover mechanism 2 and the second turnover mechanism 8 turn the bearing in opposite directions, which can realize accurate adjustment of the bearing posture (such as switching between horizontal and vertical states).

[0071] The first measuring mechanism 4 and the second measuring mechanism 5 each include a clamping mechanism 41, a first pushing mechanism and a second pushing mechanism. The clamping mechanism 41 is used to clamp both ends of the inner shaft 101. By clamping both ends of the inner shaft 101, the clamping mechanism 41 can adapt to bearings of different inner diameter specifications, without the need to frequently replace tooling fixtures, thereby reducing debugging costs. The clamping mechanism can be composed of clamping jaws controlled by a gas cylinder to open and close.

[0072] The abutting surfaces of the first abutting piece 43 and the second abutting piece 47 can be customized according to the size of the outer ring 102, so as to expand the application range of the expansion device. The first pushing mechanism comprises a first driving piece 42, the first abutting piece 43 and a first spring 44, the first abutting piece 43 is used for abutting with the outer ring 102, the first spring 44 is arranged between the output end of the first driving piece 42 and the first abutting piece 43, the second pushing mechanism comprises a second driving piece 45, a distance sensor 46 and the second abutting piece 47, the output end of the second driving piece 45 is connected with the second abutting piece 47, and the distance sensor 46 is arranged on the second abutting piece 47. The first abutting piece 43 and the second abutting piece 47 form the first measuring station or the second measuring station. The first spring 44 in the first pushing mechanism can buffer the pressure of the first abutting piece 43 on the outer ring 102, so as to avoid deformation or measurement deviation of the outer ring 102 caused by rigid contact; at the same time, the elastic force of the first spring 44 can always keep the first abutting piece 43 in close contact with the outer ring 102, so as to adapt to the tolerance range of bearings of different specifications. The second driving piece 45 drives the second abutting piece 47, so that the second abutting piece 47 drives the outer ring 102 to move along the radial direction relative to the inner shaft 101, the second pushing mechanism monitors the displacement of the outer ring 102 in real time through the distance sensor 46, and the digital collection of the clearance value can be realized by cooperating with the precise control of the second driving piece 45, so as to reduce the manual reading error. The distance sensor 46 can convert the displacement data of the outer ring 102 into an electrical signal, calculate the clearance value in real time through a control system, and generate a measurement report.

[0073] The clearance measuring device provided by the embodiments of the present disclosure realizes compatibility adaptation of bearings of different specifications by double-station measurement, automatic process, elastic abutting design and digital control, and improves the measurement accuracy and efficiency, and meets the quality detection requirements of high precision and high efficiency in industrial production.

[0074] Optionally, the first direction X can be the length direction of the clearance measuring device, the second direction Y can be the width direction of the clearance measuring device, and the third direction Z can be the height direction of the clearance measuring device.

[0075] It should be noted that the second measuring mechanism 5 and the first measuring mechanism 4 are arranged in the axial direction of the bearing 10. When the two bearings 10 are arranged in parallel, the first measuring mechanism 4 is opposite to the position of the first steel ball in the first groove of the bearing 10, and the first measuring mechanism 4 is opposite to the position of the second steel ball in the second groove of the bearing 10.

[0076] As shown in Figure 3 and Figure 4 It is shown that the first abutting piece 43 comprises a moving plate 431 and a guide column 432, and the moving plate 431 is arranged on the output end of the first driving piece 42;

[0077] The moving plate 431 is provided with a first baffle plate 433 and a second baffle plate 434, the first baffle plate 433 and the second baffle plate 434 are arranged at intervals, the first baffle plate 433 is provided with a first guide hole, the second baffle plate 434 is provided with a second guide hole, and the guide column 432 is slidably arranged in the first guide hole and the second guide hole; the first baffle plate 433 and the second baffle plate 434 are arranged at intervals on the moving plate 431, and the first guide hole and the second guide hole are respectively formed, thereby forming double guide constraints on the guide column 432. This design can effectively suppress the deflection or shaking of the guide column during movement, ensure the accuracy of the abutment position of the first abutting piece 43 to the outer ring 102, and avoid measurement errors caused by guide deviation.

[0078] The guide column 432 is provided with a first positioning piece 435 and a second positioning piece 436, both the first positioning piece 435 and the second positioning piece 436 are fixed with the guide column 432, the first positioning piece 435 is arranged between the first baffle plate 433 and the second baffle plate 434, the second baffle plate 434 is arranged between the first positioning piece 435 and the second positioning piece 436, the first spring 44 is sleeved on the guide column 432, and both ends of the first spring 44 are respectively in abutment with the first positioning piece 435 and the second baffle plate 434. By limiting the axial movement range of the guide column 432 through the first positioning piece 435 and the second positioning piece 436, and cooperating with the elastic force of the first spring 44, dynamic positioning of the guide column 432 in the first abutting piece 43 can be realized.

[0079] When the first driving piece 42 pushes the moving plate 431, the elastic force of the first spring 44 can be converted into the abutment force of the guide column 432 to the outer ring 102. On the one hand, surface damage or deformation of the outer ring 102 caused by rigid abutment can be avoided, which is especially suitable for the measurement of high-precision bearings; on the other hand, even if the bearing outer ring 102 has radial runout or surface roughness difference, the elastic deformation of the first spring 44 can maintain the stability of the abutment force, ensuring the consistency of the measurement data. For bearings of the same model but different batches, even if the outer diameter of the outer ring 102 has deviation, the guide column 432 can still realize effective abutment through the deformation of the first spring 44, without manual intervention.

[0080] In some specific embodiments, a driving mechanism for driving the outer ring 102 to rotate is further included; the driving mechanism includes a guide rail 481, a guide block 482, a driving cylinder 485, a first motor 483 and a driving wheel 484, the guide block 482 is in sliding fit with the guide rail 481, the guide rail 481 extends along a third direction Z, the extension end of the driving cylinder 485 is connected with the guide block 482, the first motor 483 is arranged on the guide block 482, and the output end of the first motor 483 is connected with the driving wheel 484; the driving wheel 484 is used to drive the outer ring 102 to rotate when abutting with the outer ring 102.

[0081] The telescopic amount of the driving cylinder 485 can be precisely controlled by the air pressure valve, so as to ensure that the driving wheel 484 is in suitable pressure contact with the outer ring. The driving cylinder 485 drives the guide block 482 to slide along the guide rail 481 (Z direction) by pushing, so as to adjust the abutting pressure of the driving wheel 484 and the outer ring 102.

[0082] The outer ring 102 is driven to rotate by the driving mechanism, so as to realize the clearance measurement of the bearing 10 at multiple points in the circumferential direction. For example, the clearance is measured every 30°, and the clearance circumferential distribution curve is drawn to determine whether the bearing has problems such as ovality out-of-tolerance or inconsistent ball size.

[0083] As shown in Figure 5 The feeding mechanism 1 includes a first transmission module 11 and a first carrying module 12. The first transmission module 11 includes a conveying belt 112 and a driving motor 111 for driving the conveying belt 112 to move, and the bearing 10 is arranged on the conveying belt 112. The first transmission module 11 is a belt transmission, and the driving motor 111 drives the conveying belt 112 to continuously run, so as to realize the continuous conveying of the bearing 10, avoid the discontinuity of manual feeding, and improve the production line efficiency.

[0084] The first carrying module 12 includes a first sliding rail 121, a first sliding block 122 and a first cylinder 123. The first sliding block 122 is in sliding cooperation with the first sliding rail 121, and the first sliding rail 121 extends along the first direction X. The first cylinder 123 is used to drive the first sliding block 122 to move along the first direction X. The first sliding block 122 is provided with a second sliding rail 124, a second sliding block 125 and a second cylinder 126. The second sliding block 125 is in sliding cooperation with the second sliding rail 124, and the second sliding rail 124 extends along the third direction Z. The second cylinder 126 is used to drive the second sliding block 125 to move along the third direction Z. The second sliding block 125 is provided with a first clamping jaw 127, which is used to move the bearing 10 located on the conveying belt 112 to the first turnover mechanism 2. The first cylinder 123 drives the first sliding block 122 to move along the first sliding rail 121, so as to position the bearing on the conveying belt 112. The second cylinder 126 drives the second sliding block 125 to move along the second sliding rail 124, so as to control the lifting height of the first clamping jaw 127 (such as lowering to grab the bearing and then rising to be translated to the turnover mechanism). The first clamping jaw 127 can be moved in the three-dimensional space (X, Z directions) in this embodiment, so as to accurately carry the bearing from the conveying belt to the first turnover mechanism 2.

[0085] Optionally, the opening and closing amplitude of the first clamping jaw 127 can be adjusted by the cylinder stroke or the mechanical structure, so as to adapt to bearings with different outer diameters.

[0086] As shown in Figure 6As shown, the first overturning mechanism 2 comprises a first overturning seat 21, a first overturning cylinder 22 for driving the first overturning seat 21 to overturn, and a first pushing cylinder 13. The first overturning seat 21 is provided with a first accommodating groove 211 for accommodating the bearing 10 and a first through hole 212 penetrating the first accommodating groove 211. When the first overturning cylinder 22 overturns the first overturning seat 21 by a certain angle in a first predetermined direction, the extension end of the first pushing cylinder 13 is arranged in correspondence with the through hole, so that when the extension end of the first pushing cylinder 13 extends, the bearing 10 is pushed to the first moving mechanism 3. The first overturning cylinder 22 can drive the first overturning seat 21 to overturn around the shaft center through the extension and retraction of the piston rod, and the overturning angle (such as 90°) can be accurately controlled. This design overturns the bearing 10 from a vertical placement state (vertical state when the conveying belt is loaded) to a horizontal state, which facilitates subsequent movement of the grabbing mechanism or positioning of the measuring mechanism and ensures the consistency of the bearing posture during measurement.

[0087] Optionally, the shape of the first accommodating groove 211 matches that of the bearing outer ring 102 (such as a circular groove), which can limit the displacement of the bearing during overturning and avoid attitude deviation caused by shaking; the first through hole 212 penetrating the first accommodating groove 211 is aligned with the extension end of the first pushing cylinder 13, so that when the overturning seat overturns to a certain angle, the cylinder can accurately push the bearing 10 through the through hole, ensuring the accuracy of the pushing position.

[0088] In some specific embodiments, the first moving mechanism 3 comprises a first moving module 31.

[0089] As shown, Figure 7 the first moving module 31 comprises a third sliding rail 311, a third sliding block 312, a third cylinder 313, and a first positioning cylinder 316. The third sliding rail 311 is in sliding cooperation with the third sliding block 312, and the cooperation between the third sliding rail 311 and the third sliding block 312 adopts a linear guide rail design. The third sliding rail 311 extends along a first direction X, and the third cylinder 313 is used to drive the third sliding block 312 to move along the first direction X. The third sliding block 312 is provided with a first fixing seat 314 for accommodating the bearing 10 pushed out from the first overturning mechanism 2. The third sliding block 312 is provided with a first pressing cylinder 315, and the extension end of the first pressing cylinder 315 is provided with a first pressing block. The first pressing block is arranged opposite to the first fixing seat 314, and the first pressing cylinder 315 is used to drive the first pressing block to move towards the first fixing seat 314 or away from the first fixing seat 314 to clamp or release the bearing 10.

[0090] The first fixed seat 314 and the first pressing block realize bidirectional clamping of the bearing through the first pressing cylinder 315: when the bearing is pushed out from the turnover mechanism to the first fixed seat 314, the first pressing cylinder 315 drives the first pressing block to move downward and clamps the inner shaft 101 or the outer ring 102 of the bearing in cooperation with the first fixed seat 314; the clamping force can be adjusted through the air pressure valve, which can prevent the bearing from falling off when moving and also avoid the deformation of the bearing caused by excessive clamping force (for example, low air pressure clamping is adopted for thin-walled bearings). The design ensures that the bearing maintains a fixed posture during movement, providing a stable workpiece basis for subsequent measurement.

[0091] In the embodiment, the third cylinder 313 and the first pressing cylinder 315 are linked through a controller system:

[0092] After the bearing falls into the first fixed seat 314, the first pressing cylinder 315 first acts to clamp the bearing 10;

[0093] The third cylinder 313 then drives the third sliding block 312 to move along the X-axis to the initial work station; after reaching the work station, the pressing cylinder is loosened to allow the carrying mechanism to take away the bearing. The first moving module 31 is matched with the turnover mechanism and the carrying mechanism in terms of beats to form continuous automatic operation.

[0094] The first moving module 31 can operate independently of the measuring mechanism: when a certain bearing 10 is being transferred in the moving module, another bearing 10 can be turned over in the turnover mechanism at the same time, realizing multi-task parallelism and improving the overall efficiency of the production line.

[0095] In some specific embodiments, the first moving mechanism 3 includes a second moving module 32, as Figure 8 The second moving module 32 includes a second pushing cylinder 321 and a second fixed seat 322, and the second pushing cylinder 321 is arranged corresponding to the second fixed seat 322.

[0096] When the third cylinder 313 pushes the third sliding block 312 to move the bearing 10 to a position opposite to the second pushing cylinder 321, the extension end of the second pushing cylinder 321 pushes the bearing 10 to the second fixed seat 322, and the second fixed seat 322 is provided with a first groove 323, which forms an initial work station.

[0097] The second moving module 32 and the first moving module 31 form a relay process of "pushing-picking up": the first moving module 31 moves the bearing 10 to the pushing position → the second pushing cylinder 321 pushes the bearing 10 to the second fixed seat 322 → the carrying mechanism 7 picks up the bearing 10 from the second fixed seat 322 to the measuring work station; this process does not require manual intervention and can form a continuous assembly line operation, improving the overall efficiency of the production line.

[0098] As Figure 9As shown, the carrying mechanism 7 includes a fourth sliding rail 71, a fourth sliding block 72 and a fourth cylinder 73, the fourth sliding block 72 is in sliding fit with the fourth sliding rail 71, the fourth sliding rail 71 extends along the first direction X, and the fourth cylinder 73 is used to drive the fourth sliding block 72 to move along the first direction X; the fourth sliding block 72 is provided with a fifth sliding rail 74, a fifth sliding block 75 and a fifth cylinder 76, the fifth sliding block 75 is in sliding fit with the fifth sliding rail 74, the fifth sliding rail 74 extends along the third direction Z, and the fifth cylinder 76 is used to drive the fifth sliding block 75 to move along the third direction Z; the fifth sliding block 75 is provided with a second clamping jaw 77, and the second clamping jaw 77 is used to move the bearing 10 located at the second fixed seat 322 to the first measuring station, the second measuring station or the measuring completion station.

[0099] The fourth cylinder 73 drives the fourth sliding block 72 to move along the fourth sliding rail 71, so that the second clamping jaw 77 can accurately reach the second fixed seat 322, the first measuring station, the second measuring station and the measuring completion station; the fifth cylinder 76 drives the fifth sliding block 75 to move along the fifth sliding rail 74, so as to control the lifting height of the clamping jaw and realize the grabbing and placing actions of the bearing. In the embodiment, the carrying mechanism 7 realizes the accurate movement of the second clamping jaw 77 in a two-dimensional plane through the combination of the “X-axis sliding rail (the fourth sliding rail 71) + Z-axis sliding rail (the fifth sliding rail 74)” structure.

[0100] The second clamping jaw 77 is driven by air, and the opening and closing amplitude can be adjusted according to the outer diameter of the bearing 10.

[0101] In addition, the carrying mechanism 7 can cyclically work between multiple stations:

[0102] Initial station → first measuring station: grab the bearing 10 from the second fixed seat 322 and move it to the first measuring station for outer ring size detection;

[0103] First measuring station → second measuring station: after the clearance detection of the first steel ball position is completed, move the bearing 10 to the second measuring station for clearance detection of the second steel ball position;

[0104] Second measuring station → measuring completion station: after the clearance detection of the second steel ball position is completed, move the bearing 10 to the third fixed seat 64 of the second moving mechanism 6.

[0105] The cycle mode can be accurately controlled by a PLC program to realize seamless connection between multiple stations and avoid efficiency loss caused by manual intervention.

[0106] As shown in the figure, Figure 10 The second moving mechanism 6 includes a sixth sliding rail 61, a sixth sliding block 62 and a sixth cylinder 63, the sixth sliding rail 61 is in sliding fit with the sixth sliding block 62, the sixth sliding rail 61 and the sixth sliding block 62 adopt linear guide fit, the sixth sliding rail 61 extends along the first direction X, and the sixth cylinder 63 is used to drive the sixth sliding block 62 to move along the first direction X;

[0107] The sixth slider 62 is provided with a third fixed seat 64, which is used to receive the bearing 10 moved out from the conveying mechanism 7. The third fixed seat 64 forms a second groove 65, which forms a measurement completion station.

[0108] The sixth slider 62 is provided with a second clamping cylinder 67. The telescopic end of the second clamping cylinder 67 is provided with a second clamping block. The second clamping block is disposed opposite to the third fixed seat 64. The second clamping cylinder 67 is used to drive the second clamping block to move toward or away from the third fixed seat 64 to clamp or release the bearing 10.

[0109] After the conveying mechanism 7 places the bearing 10 into the second groove 65 of the third fixed seat 64, the second clamping cylinder 67 drives the clamping block to move downward, cooperating with the third fixed seat 64 to clamp the inner shaft 101 or outer ring 102 of the bearing. The clamping force can be adjusted by the pneumatic valve, which can prevent the bearing from falling off during movement and avoid excessive clamping force that could damage the accuracy of the measured bearing. This design ensures that the bearing 10 maintains a fixed posture during the transfer process, providing a stable workpiece foundation for the subsequent handling by the unloading mechanism 9.

[0110] Specifically, after the conveying mechanism 7 places the bearing 10 into the third fixed seat 64, the second clamping cylinder 67 first clamps the bearing 10; the sixth cylinder 63 drives the sixth slider 62 to move along the X-axis to the discharge station; after reaching the station, the second clamping cylinder 67 releases, and the discharge mechanism 9 takes away the bearing.

[0111] The second moving mechanism 6 can operate in parallel with the measuring mechanism: when one bearing 10 is moved in the moving mechanism, another bearing can be detected in the measuring mechanism at the same time, realizing the parallel operation of "measurement-transfer".

[0112] like Figure 10 As shown, it also includes a third push cylinder 66, which is correspondingly arranged with the third fixed base 64;

[0113] When the sixth cylinder 63 pushes the sixth slider 62 to move the bearing 10 to a position relative to the third push cylinder 66, the telescopic end of the third push cylinder 66 extends and pushes the bearing 10 to the second flipping mechanism 8.

[0114] In some specific embodiments, the second overturning mechanism 8 comprises a second overturning seat 81 and a second overturning cylinder 82, the second overturning cylinder 82 is used to drive the second overturning seat 81 to overturn, the second overturning seat 81 is provided with a second accommodating groove, the second accommodating groove is used to accommodate the bearing 10 pushed out by the third pushing cylinder 66. The third pushing cylinder 66 is linked with the sixth sliding block 62, when the sixth cylinder 63 moves the bearing 10 to the pushing position, the third pushing cylinder 66 pushes the bearing 10 to the second accommodating groove of the second overturning seat 81 through the piston rod. The second overturning cylinder 82 drives the second overturning seat 81 to overturn around the shaft center, which can realize the 90° overturning of the posture of the bearing 10 (such as converting the bearing 10 from horizontal placement to vertical placement).

[0115] The third pushing cylinder 66 and the second overturning mechanism 8 can be linked through the PLC system, the sixth sliding block 62 moves the bearing 10 to the pushing position → the third pushing cylinder 66 pushes the bearing 10 to the second accommodating groove → the second overturning cylinder 82 drives the second overturning seat 81 to overturn 90° → the discharging mechanism 9 grabs the bearing 10 which has completed the test from the second overturning seat 81.

[0116] In some specific embodiments, the discharging mechanism 9 comprises a seventh sliding rail 91, a seventh sliding block 92 and a seventh cylinder 93, the seventh sliding block 92 is in sliding fit with the seventh sliding rail 91, the seventh sliding rail 91 extends along the first direction X, and the seventh cylinder 93 is used to drive the seventh sliding block 92 to move along the first direction X; the seventh sliding block 92 is provided with an eighth sliding rail 94, an eighth sliding block 95 and an eighth cylinder 96, the eighth sliding block 95 is in sliding fit with the eighth sliding rail 94, the eighth sliding rail 94 extends along the third direction Z, and the eighth cylinder 96 is used to drive the eighth sliding block 95 to move along the third direction Z; the eighth sliding block 95 is provided with a third clamping jaw 97, and the third clamping jaw 97 is used to move the bearing 10 located in the second overturning mechanism 8 to a discharging disc 98.

[0117] X-axis direction: the seventh cylinder 93 drives the seventh sliding block 92 to move along the seventh sliding rail 91, which ensures that the third clamping jaw 97 can accurately reach the bearing position of the second overturning mechanism 8 and the specified falling point of the discharging disc 98;

[0118] Z-axis direction: the eighth cylinder 96 drives the eighth sliding block 95 to move along the eighth sliding rail 94, which controls the lifting height of the third clamping jaw 97 and realizes the grabbing and placing actions of the bearing 10.

[0119] The design can accurately carry the bearing 10 from the second overturning mechanism 8 to the discharging disc 98. The third clamping jaw 97 is driven by air pressure, and the opening and closing amplitude can be adjusted according to the outer diameter of the bearing. The discharging mechanism 9, the second overturning mechanism 8 and the carrying mechanism 7 can be linked through the PLC system.

[0120] Optionally, the discharge tray 98 can be divided into multiple areas (such as qualified area, unqualified area, and re-inspection area), and the discharge mechanism 9 places the bearing into the corresponding area according to the determination signal of the measuring system.

[0121] It should be understood that the various forms of flow shown above can be reordered, added to, or deleted from. For example, the steps described in the present disclosure can be executed in parallel, in sequence, or in a different order, as long as the desired results of the technical solutions disclosed in the present embodiment can be achieved, and the present disclosure is not limited herein.

[0122] In addition, the terms "first", "second", are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0123] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A play measuring device for measuring the play of a bearing (10) comprising an inner ring (101) and an outer ring (102), characterized in that, The application relates to a bearing inner ring position clearance measuring device. The application comprises: a feeding mechanism (1) for carrying a bearing (10) to a first turnover mechanism (2); the first turnover mechanism (2) is used for turning the bearing (10) by a set angle along a first predetermined direction; a first moving mechanism (3) is used for moving the bearing (10) to an initial station; a first measuring mechanism (4) has a first measuring station and is used for measuring the clearance of a first steel ball position of the bearing (10); a second measuring mechanism (5) is arranged in an axial direction of the bearing (10) and is offset from the first measuring mechanism (4), the second measuring mechanism (5) has a second measuring station and is used for measuring the clearance of a second steel ball position of the bearing (10); a second moving mechanism (6) is used for carrying the bearing (10) to a second turnover mechanism (8); a carrying mechanism (7) is used for moving the bearing (10) from the initial station to the first measuring station, the second measuring station or a measuring completion station; the second turnover mechanism (8) is used for turning the bearing (10) by a set angle along a direction opposite to the first predetermined direction; an ejection mechanism (9) is used for carrying the measured bearing (10); wherein the first measuring mechanism (4) and the second measuring mechanism (5) each comprise a clamping mechanism (41), a first pushing mechanism and a second pushing mechanism, the clamping mechanism (41) is used for clamping two ends of the inner shaft (101), the first pushing mechanism and the second pushing mechanism are respectively arranged at two ends in a radial direction of the bearing (10), the first pushing mechanism comprises a first driving piece (42), a first abutting piece (43) and a first spring (44), the first abutting piece (43) is used for abutting against the outer ring (102), a first spring (44) is arranged between an output end of the first driving piece (42) and the first abutting piece (43), the second pushing mechanism comprises a second driving piece (45), a distance sensor (46) and a second abutting piece (47), an output end of the second driving piece (45) is connected with the second abutting piece (47), and the distance sensor (46) is arranged on the second abutting piece (47); the application further comprises a driving mechanism for driving the outer ring (102) to rotate; the driving mechanism comprises a guide rail (481), a guide block (482), a driving cylinder (485), a first motor (483) and a driving wheel (484), the guide block (482) is in sliding fit with the guide rail (481), a telescopic end of the driving cylinder (485) is connected with the guide block (482), the first motor (483) is arranged on the guide block (482), and an output end of the first motor (483) is connected with the driving wheel (484); the driving wheel (484) is used for driving the outer ring (102) to rotate when the outer ring (102) abuts against the driving wheel (484), so as to measure a plurality of point positions of the bearing (10) at every interval of a set angle; the distance sensor (46) is used for converting the displacement data of the outer ring (102) into an electric signal, calculating the clearance value in real time through a control system and generating a measuring report. The first turnover mechanism (2) comprises a first turnover seat (21), a first turnover cylinder (22) and a first pushing cylinder (13), the first turnover cylinder (22) is used for driving the first turnover seat (21) to turn over, the first turnover seat (21) is provided with a first accommodating groove (211) and a first through hole (212) penetrating through the first accommodating groove (211), and the first accommodating groove (211) is used for accommodating the bearing (10); When the first turnover cylinder (22) turns over the first turnover seat (21) by a certain angle along a first predetermined direction, the telescopic end of the first pushing cylinder (13) is arranged in correspondence with the through hole, so that when the telescopic end of the first pushing cylinder (13) is extended, the bearing (10) is pushed to the first moving mechanism (3).

2. The play measuring device of claim 1, wherein, The first abutting piece (43) comprises a moving plate (431) and a guide column (432), the moving plate (431) is arranged at the output end of the first driving piece (42); The moving plate (431) is provided with a first baffle (433) and a second baffle (434), the first baffle (433) and the second baffle (434) are arranged at intervals, the first baffle (433) is provided with a first guide hole, the second baffle (434) is provided with a second guide hole, and the guide column (432) is slidably arranged in the first guide hole and the second guide hole; The guide column (432) is provided with a first positioning piece (435) and a second positioning piece (436), the first positioning piece (435) and the second positioning piece (436) are fixed with the guide column (432), the first positioning piece (435) is arranged between the first baffle (433) and the second baffle (434), the second baffle (434) is arranged between the first positioning piece (435) and the second positioning piece (436), the first spring (44) is sleeved on the guide column (432), and the two ends of the first spring (44) are respectively in abutment with the first positioning piece (435) and the second baffle (434).

3. The play measuring device of claim 1, wherein, The feeding mechanism (1) comprises a first transmission module (11) and a first carrying module (12); The first transmission module (11) comprises a conveying belt (112) and a driving motor (111) for driving the conveying belt (112) to move, and the bearing (10) is arranged on the conveying belt (112); The first carrying module (12) comprises a first sliding rail (121), a first sliding block (122) and a first cylinder (123), the first sliding block (122) is in sliding cooperation with the first sliding rail (121), the first sliding rail (121) extends along a first direction (X), and the first cylinder (123) is used for driving the first sliding block (122) to move along the first direction (X); The first slider (122) is provided with a second sliding rail (124), a second slider (125) and a second cylinder (126), the second slider (125) is in sliding fit with the second sliding rail (124), the second sliding rail (124) extends along a third direction (Z), and the second cylinder (126) is used for driving the second slider (125) to move along the third direction (Z); The second slider (125) is provided with a first clamping jaw (127), and the first clamping jaw (127) is used for moving the bearing (10) located on the conveying belt (112) to the first turnover mechanism (2).

4. The play measuring device of claim 1, wherein, The first moving mechanism (3) comprises a first moving module (31); The first moving module (31) comprises a third sliding rail (311), a third slider (312) and a third cylinder (313), the third sliding rail (311) is in sliding fit with the third slider (312), the third sliding rail (311) extends along a first direction (X), and the third cylinder (313) is used for driving the third slider (312) to move along the first direction (X); The third slider (312) is provided with a first fixing seat (314), and the first fixing seat (314) is used for receiving the bearing (10) pushed out from the first turnover mechanism (2); The third slider (312) is provided with a first pressing cylinder (315), an extension end of the first pressing cylinder (315) is provided with a first pressing block, the first pressing block is arranged opposite to the first fixing seat (314), and the third cylinder (313) is used for driving the first pressing block to move towards a direction close to or away from the first fixing seat (314) so as to clamp or release the bearing (10).

5. The play measuring device of claim 4, wherein, The first moving mechanism (3) comprises a second moving module (32), and the second moving module (32) comprises a second pushing cylinder (321) and a second fixing seat (322), the second pushing cylinder (321) is arranged correspondingly to the second fixing seat (322); When the third cylinder (313) pushes the third slider (312) to move the bearing (10) to a position opposite to the second pushing cylinder (321), an extension end of the second pushing cylinder (321) extends to push the bearing (10) to the second fixing seat (322), and the second fixing seat (322) is provided with a first groove (323), and the first groove (323) forms the initial station.

6. The play measuring device of claim 5, wherein, The carrying mechanism (7) comprises a fourth sliding rail (71), a fourth slider (72) and a fourth cylinder (73), the fourth slider (72) is in sliding fit with the fourth sliding rail (71), the fourth sliding rail (71) extends along the first direction (X), and the fourth cylinder (73) is used for driving the fourth slider (72) to move along the first direction (X); The fourth sliding block (72) is provided with a fifth sliding rail (74), a fifth sliding block (75) and a fifth cylinder (76), the fifth sliding block (75) is in sliding fit with the fifth sliding rail (74), the fifth sliding rail (74) extends along a third direction (Z), and the fifth cylinder (76) is used for driving the fifth sliding block (75) to move along the third direction (Z); The fifth sliding block (75) is provided with a second clamping jaw (77), and the second clamping jaw (77) is used for moving the bearing (10) located at the second fixed seat (322) to a first measuring station, a second measuring station or a measuring completion station.

7. The play measuring device of claim 1, wherein, The second moving mechanism (6) comprises a sixth sliding rail (61), a sixth sliding block (62) and a sixth cylinder (63), the sixth sliding rail (61) is in sliding fit with the sixth sliding block (62), the sixth sliding rail (61) extends along a first direction (X), and the sixth cylinder (63) is used for driving the sixth sliding block (62) to move along the first direction (X); The sixth sliding block (62) is provided with a third fixed seat (64), the third fixed seat (64) is used for receiving the bearing (10) moved out from the carrying mechanism (7), and the third fixed seat (64) forms a second groove (65), and the second groove (65) forms the measuring completion station; The sixth sliding block (62) is provided with a second pressing cylinder (67), an extension end of the second pressing cylinder (67) is provided with a second pressing block, the second pressing block is arranged opposite to the third fixed seat (64), and the second pressing cylinder (67) is used for driving the second pressing block to move towards a direction close to or away from the third fixed seat (64) so as to clamp or release the bearing (10).

8. The play measuring device of claim 7, wherein, Further comprising a third pushing cylinder (66), and the third pushing cylinder (66) is arranged correspondingly to the third fixed seat (64); When the sixth cylinder (63) pushes the sixth sliding block (62) to move the bearing (10) to a position opposite to the third pushing cylinder (66), the extension end of the third pushing cylinder (66) extends to push the bearing (10) to the second overturning mechanism (8).

9. The device of claim 1, wherein: The second overturning mechanism (8) comprises a second overturning seat (81) and a second overturning cylinder (82), the second overturning cylinder (82) is used for driving the second overturning seat (81) to overturn, and the second overturning seat (81) is provided with a second accommodating groove, and the second accommodating groove is used for receiving the bearing (10) pushed out by the third pushing cylinder (66).

10. The play measuring device of claim 1, wherein, The discharging mechanism (9) comprises a seventh sliding rail (91), a seventh sliding block (92) and a seventh cylinder (93), the seventh sliding block (92) is in sliding fit with the seventh sliding rail (91), the seventh sliding rail (91) extends along the first direction (X), and the seventh cylinder (93) is used for driving the seventh sliding block (92) to move along the first direction (X); The seventh slider (92) is provided with an eighth slide rail (94), an eighth slider (95) and an eighth cylinder (96), the eighth slider (95) is in sliding fit with the eighth slide rail (94), the eighth slide rail (94) extends along a third direction (Z), and the eighth cylinder (96) is used for driving the eighth slider (95) to move along the third direction (Z); The eighth slider (95) is provided with a third clamping jaw (97), and the third clamping jaw (97) is used for moving the bearing (10) located on the second turnover mechanism (8) to a discharge disc (98).

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