A ball cage assembly machining system and method

Abstract

The application relates to the technical field of universal joint processing, in particular to a ball cage assembly processing system and method. The system comprises a first conveying unit, a middle conveying assembly and a second conveying unit. The middle conveying assembly comprises a rough positioning part, a second middle conveying unit and a fine positioning part. The first conveying unit carries the ball cage assembly to cooperate with the rough positioning part. The second middle conveying unit carries the ball cage assembly from the rough positioning part to cooperate with the fine positioning part. The path length of the first conveying unit carrying the ball cage assembly is greater than the path length of the second middle conveying unit carrying the ball cage assembly. The cooperation gap of the ball cage assembly and the rough positioning part is greater than the cooperation gap of the ball cage assembly and the fine positioning part. The second conveying unit carries the ball cage assembly away from the fine positioning part. Thus, the positioning difficulty of the ball cage assembly is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of universal joint processing, in particular to a ball cage assembly processing system and method. BACKGROUND

[0002] As a common transmission component, the core components of the ball cage type universal joint include a ball cage assembly, a ball and a star-shaped sleeve. The structure of the ball cage assembly is designed as a shell with one end open. In order to achieve smooth rolling and effective transmission of force of the ball, a plurality of raceways are machined on the inner circumferential wall of the ball cage assembly along the length direction of the opening. After the ball cage type universal joint is completely assembled, the ball is accurately arranged between the star-shaped sleeve and the raceway, and the ball rolls in the space formed by the two, thereby realizing the functions of power transmission and steering. Since the smoothness of the raceway surface directly affects the rolling resistance and wear rate of the ball, in order to reduce the wear of the ball during long-term use and prolong the service life of the ball cage type universal joint, the raceway usually needs to be finished to remove burrs, impurities and irregular protrusions on the surface of the raceway, so that the raceway surface can achieve a high smoothness as much as possible, so as to ensure that the ball can roll smoothly and smoothly in the raceway, and reduce the additional friction and wear caused by the rough surface of the raceway.

[0003] In the production and processing process of the ball cage type universal joint, after the ball cage assembly is finished, the ball cage assembly needs to be grabbed by an automatic device and moved to an area for finishing the raceway. Since the rough machining area and the finishing area are usually far away in the production workshop, the ball cage assembly will be affected by the inevitable vibration during transportation, which will cause the ball cage assembly to displace to a certain extent during transportation. On the other hand, the precision deviation of the automatic device itself also affects the position stability of the ball cage assembly during grabbing and transportation. The two factors work together, and finally cause the raceway on the ball cage assembly to displace during transportation. When the ball cage assembly is transported to the finishing area, the raceway cannot be finished directly, and the actual position of the raceway must be recalibrated first. After calibration, subsequent raceway finishing operation can be carried out. This process not only increases the production process, but also may affect the final processing quality due to calibration error. SUMMARY

[0004] To solve the problem of difficult positioning of the ball cage assembly, the present application provides a ball cage assembly processing system and method.

[0005] In a first aspect, the present application provides a ball cage assembly processing method, which comprises:

[0006] a first conveying unit;

[0007] The middle conveying assembly includes a coarse positioning part, a second middle conveying unit, and a fine positioning part. The first conveying unit carries the ball cage assembly to cooperate with the coarse positioning part. The second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part. The path length of the first conveying unit carrying the ball cage assembly is greater than the path length of the second middle conveying unit carrying the ball cage assembly. The gap between the ball cage assembly and the coarse positioning part is greater than the gap between the ball cage assembly and the fine positioning part.

[0008] The second conveying unit carries the ball cage assembly away from the fine positioning part.

[0009] In some embodiments, the path of the first conveying unit carrying the ball cage assembly includes a vertical direction carrying path and a horizontal direction carrying path. The path of the second middle conveying unit carrying the ball cage assembly includes a vertical direction carrying path and a horizontal direction carrying path. The vertical direction carrying path length of the first conveying unit carrying the ball cage assembly is greater than the vertical direction carrying path length of the second middle conveying unit carrying the ball cage assembly. The horizontal direction carrying path length of the first conveying unit carrying the ball cage assembly is greater than the horizontal direction carrying path length of the second middle conveying unit carrying the ball cage assembly.

[0010] In some embodiments, the middle conveying assembly further includes a first middle conveying unit. The first middle conveying unit includes a first middle flat track, a first middle flat slider, a coarse positioning seat, and the coarse positioning part. The first middle flat slider, the coarse positioning seat, and the coarse positioning part are sequentially connected. The first middle flat slider is in sliding connection with the first middle flat track. The projection of the second middle conveying unit on a set horizontal plane is spaced apart from the projection of the first conveying unit on the set horizontal plane.

[0011] The ball cage assembly processing system includes a first middle conveying state. The first middle conveying state includes that the projection of the coarse positioning part on the set horizontal plane at least partially coincides with the projection of the second middle conveying unit on the set horizontal plane.

[0012] In some embodiments, the coarse positioning part has a translation path length that is less than the horizontal carrying path length of the second middle conveying unit carrying the ball cage assembly.

[0013] In some embodiments, the path length of the first conveying unit carrying the ball cage assembly is greater than the path length of the middle conveying assembly carrying the ball cage assembly.

[0014] The path length of the middle conveying assembly carrying the ball cage assembly is the sum of the path length of the second middle conveying unit carrying the ball cage assembly and the translation path length of the coarse positioning part.

[0015] In some embodiments, the first conveying unit comprises a first horizontal rail, a first horizontal sliding block, a first vertical rail, a first vertical sliding block, and a clamping module; the first horizontal rail is in sliding connection with the first horizontal sliding block; the first vertical rail is in connection with the first horizontal sliding block; the first vertical sliding block is in sliding connection with the first vertical rail; one end of the first vertical sliding block is in connection with the clamping module; the sliding direction of the first horizontal sliding block is perpendicular to the sliding direction of the first vertical sliding block.

[0016] The ball cage assembly processing system comprises a first conveying state; the first conveying state comprises clamping or loosening the ball cage assembly by the clamping module; the first conveying state further comprises sliding of the first horizontal sliding block and / or sliding of the first vertical sliding block.

[0017] In some embodiments, the clamping module comprises a turnover part, a claw base, and a first clamping claw; one end of the first vertical sliding block, the turnover part, the claw base, and the first clamping claw are connected in sequence; the first conveying state further comprises clamping or loosening the ball cage assembly by the first clamping claw; the first conveying state further comprises swinging of the central axis of the ball cage assembly clamped by the first clamping claw in the horizontal and vertical directions by the turnover part.

[0018] In some embodiments, the second middle conveying unit comprises a second middle horizontal rail, a second middle horizontal sliding block, a middle vertical rail, a middle vertical sliding block, and a middle clamping claw; the second middle horizontal rail is in sliding connection with the second middle horizontal sliding block; the second middle horizontal sliding block is in connection with the middle vertical rail; the middle vertical rail is in sliding connection with the middle vertical sliding block; one end of the middle vertical sliding block is in connection with the middle clamping claw.

[0019] The ball cage assembly processing system comprises a second middle conveying state; the second middle conveying state comprises clamping or loosening the ball cage assembly by the middle clamping claw; the second middle conveying state further comprises sliding of the second middle horizontal sliding block and / or sliding of the middle vertical sliding block.

[0020] In a second aspect, the application provides a ball cage assembly processing method, which is applied to the ball cage assembly processing system in any of the first aspect, and the ball cage assembly processing method comprises the following steps:

[0021] The first conveying unit carries the ball cage assembly to cooperate with the coarse positioning part;

[0022] Based on the first conveying unit leaving above the coarse positioning part, the second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part;

[0023] Based on the second middle conveying unit leaving above the fine positioning part, the second conveying unit carries the ball cage assembly away from the fine positioning part.

[0024] In some embodiments, the middle conveying assembly further comprises a first middle conveying unit; the first middle conveying unit comprises a first middle flat track, a first middle flat slider, a coarse positioning seat, and a coarse positioning part;

[0025] The second middle conveying unit carries the ball cage assembly from the coarse positioning part to the fine positioning part based on the first conveying unit leaving above the coarse positioning part, which comprises:

[0026] The first middle flat slider drives the ball cage assembly on the coarse positioning part to move to a set area in a direction close to the second middle conveying unit based on the first conveying unit leaving above the coarse positioning part; wherein the projection of the set area on a set horizontal plane is spaced apart from the projection of the first conveying unit on the set horizontal plane.

[0027] The second middle conveying unit carries the ball cage assembly from the coarse positioning part to the fine positioning part based on the ball cage assembly on the coarse positioning part moving to the set area.

[0028] In some embodiments, the ball cage assembly processing method further comprises:

[0029] The second middle conveying unit is driven to a set area based on the second middle conveying unit leaving above the fine positioning part.

[0030] To solve the problem of difficult positioning of the ball cage assembly, the present application has the following advantages:

[0031] The ball cage assembly is carried by the first conveying unit in the ball cage assembly processing system to cooperate with the coarse positioning part of the middle conveying assembly, and then the ball cage assembly is carried from the coarse positioning part to cooperate with the fine positioning part by the second middle conveying unit of the middle conveying assembly, and finally the ball cage assembly is carried away from the fine positioning part by the second conveying unit, and the path length of the ball cage assembly carried by the first conveying unit is greater than the path length of the ball cage assembly carried by the second middle conveying unit, and the gap between the ball cage assembly and the coarse positioning part is greater than the gap between the ball cage assembly and the fine positioning part, so that segmented positioning and conveying of the ball cage assembly during transportation can be realized. Among them, long-distance transportation adopts the first conveying unit to cooperate with the coarse positioning part for preliminary positioning, short-distance transportation adopts the second middle conveying unit to cooperate with the fine positioning part for accurate positioning, and the gap of the fine positioning is smaller than that of the coarse positioning. The influence of vibration and equipment precision problems on the position of the ball cage assembly during long-distance transportation can be effectively reduced, so as to avoid the displacement of the raceway of the ball cage assembly during transportation, finally solve the problem that the ball cage assembly needs to be recalibrated after reaching the fine processing area, ensure the smooth development of subsequent raceway fine processing, and reduce the influence of calibration error on processing quality. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A first perspective view of a ball cage assembly processing system of an embodiment is shown.

[0033] Figure 2 A second-view schematic diagram of a ball cage assembly processing system according to one embodiment is shown;

[0034] Figure 3 It shows Figure 2 A magnified view of a portion of the image;

[0035] Figure 4 A schematic diagram of a conveyor assembly in a ball cage assembly processing system according to one embodiment is shown;

[0036] Figure 5 A schematic diagram of the second processing component of a ball cage assembly processing system according to one embodiment is shown;

[0037] Figure 6 A first-view schematic diagram of a ball cage assembly processing system according to an embodiment is shown.

[0038] Figure 7 A second-view schematic diagram of a ball cage assembly processing system according to an embodiment is shown.

[0039] Figure 8 A schematic diagram of a ball cage assembly processing method according to one embodiment is shown.

[0040] Reference numerals: 10 First processing assembly; 11 First machine tool; 12 First conveying unit; 121 First horizontal track; 122 First smoothing block; 123 First vertical track; 124 First vertical slider; 125 Clamping module; 1251 Tilting part; 1252 Jaw seat; 1253 First gripper; 20 Middle conveying assembly; 21 First middle conveying unit; 211 First horizontal track; 212 First smoothing block; 213 Coarse positioning seat; 214 Coarse positioning part; 22 Second middle conveying unit; 221 Second horizontal track; 222 Second smooth block; 223 Vertical track; 224 Vertical slider; 225 Gripper; 23 Precision positioning unit; 231 Precision positioning seat; 232 Precision positioning part; 30 Second processing assembly; 31 Second processing machine tool; 32 Second conveying unit; 321 Second horizontal track; 322 Second smooth block; 323 Second vertical track; 324 Second vertical slider; 325 Second gripper; 40 Ball cage assembly; 41 Ball cage shell; 42 Connecting shaft; 43 Rolling groove. Detailed Implementation

[0041] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0042] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, are intended to be inclusive or open-ended and do not exclude additional terms, elements, or steps. The terms "based on" and "based upon" are to be interpreted as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and the like, merely describe points of reference and do not necessarily limit the position, location, and / or orientation of an indicated device, element, or component, either literally or conceptually, in the absence of additional restraint. These terms, therefore, are used merely to better describe and define the application and its embodiments and are not intended to limit the scope of the application or its embodiments in any way. In addition, the terms "on," "onto," and the like, are used in their broadest context and can mean "on," "onto," "sitting on," "on top of," "adjacent to," "in contact with," "attached to," "connected to," "engaged with," or the like, unless otherwise specifically noted. The specific meaning of these terms will be apparent from the context in which they are used. Further, the terms "mount," "position," "provide," "have," "establish," "connect," "engage," "attach," "set," "set up," "configure," and the like, are intended to be broadly construed as "to create or establish a relationship or connection between devices, elements, or components," unless otherwise specifically noted. The specific meaning of these terms will be apparent from the context in which they are used. Further, the terms "first," "second," and the like, are used merely to better identify different devices, elements, or components, and do not necessarily indicate relative importance or significance of the indicated device, element, or component, unless otherwise specifically noted. Unless otherwise specified, the term "plurality" means two or more.

[0043] During the process of transporting the ball cage assembly 40 by the ball cage assembly 40 processing system, there is a technical problem that the raceway of the ball cage assembly 40 is prone to displacement. Specifically, after the ball cage assembly 40 is completed with rough machining, it needs to be gradually transported to the finishing area by the first conveying unit 12, the middle conveying assembly 20 (including the rough positioning part 214, the second middle conveying unit 22, and the fine positioning part 232), and the second conveying unit 32 in the system. Since the rough machining area and the finishing area are far apart, the path length of the first conveying unit 12 for transporting the ball cage assembly 40 is relatively long. When the ball cage assembly 40 is transported by the first conveying unit 12 for a long distance, on the one hand, it will be affected by the inevitable vibration during the transportation process, and on the other hand, it is limited by the precision problem of the automatic equipment (corresponding to the conveying unit in the system). The two factors work together, causing the raceway of the ball cage assembly 40 to be displaced before it is transferred from the rough positioning part 214 to the fine positioning part 232, and then causing the ball cage assembly 40 to reach the finishing area. After that, the raceway position needs to be recalibrated before the raceway finishing operation can be carried out.

[0044] Embodiment one:

[0045] In this embodiment, the ball cage assembly 40 processing system is disclosed, as shown in Figure 1 The ball cage assembly 40 processing system includes a first conveying unit 12 and a second conveying unit 32. The first conveying unit 12 can be used to grab and move the ball cage assembly 40 completed with rough machining.

[0046] As shown in Figure 2 , Figure 3 , Figure 4As shown, the middle conveying assembly 20 includes a coarse positioning part 214, a second middle conveying unit 22, and a fine positioning part 232. The first conveying unit 12 can carry the ball cage assembly 40 to cooperate with the coarse positioning part 214, so that the ball cage assembly 40 is sleeved on the outer circumferential side of the coarse positioning part 214, and the rolling groove 43 of the ball cage assembly 40 at least partially abuts against the coarse positioning part 214, so that the coarse positioning part 214 adjusts the position of the rolling groove 43 in the circumferential direction of the ball cage assembly 40, reduces the error of the position of the rolling groove 43 in the circumferential direction of the ball cage assembly 40 relative to the coarse positioning part 214, and realizes coarse positioning of the rolling groove 43. The second middle conveying unit 22 carries the ball cage assembly 40 from the coarse positioning part 214 to cooperate with the fine positioning part 232. The path length of the first conveying unit 12 for carrying the ball cage assembly 40 is greater than the path length of the second middle conveying unit 22 for carrying the ball cage assembly 40. The ball cage assembly 40 is subjected to vibration for a longer time during movement on the first conveying unit, and the rolling groove 43 moves a longer distance. The ball cage assembly 40 is subjected to vibration for a shorter time during movement on the first conveying unit, and the rolling groove 43 moves a shorter distance. The cooperation gap between the ball cage assembly 40 and the coarse positioning part 214 in the circumferential direction of the ball cage assembly 40 is greater than the cooperation gap between the ball cage assembly 40 and the fine positioning part 232 in the circumferential direction of the ball cage assembly 40. After coarse positioning of the rolling groove 43 is completed, the second middle conveying unit 22 moves the ball cage assembly 40 to the outer circumferential side of the fine positioning part 232 by a short distance, so that the rolling groove 43 of the ball cage assembly 40 at least partially abuts against the fine positioning part 232, further reduces the error of the position of the rolling groove 43 in the circumferential direction of the ball cage assembly 40 relative to the fine positioning part 232, and realizes fine positioning. After fine positioning is completed, the position of the rolling groove 43 does not need to be identified again, and the rolling groove 43 can be directly machined according to a preset program. In this way, the position error of the rolling groove 43 can be gradually reduced while the ball cage assembly 40 is moved, and the production efficiency is improved.

[0047] The second conveying unit 32 can move the ball cage assembly 40 from the fine positioning part 232 to an area for machining the rolling groove 43, so that the machining work on the ball cage assembly 40 is completed.

[0048] In other embodiments, the ball cage assembly 40 machining system further includes a first machining assembly 10 and a second machining assembly 30. The first machining assembly 10 includes a first machining machine tool 11 and a first conveying unit 12. The first machining machine tool 11 can coarsely machine the ball cage assembly 40. The ball cage assembly 40 machined by the first machining machine tool 11 can be moved to the outer circumferential side of the coarse positioning seat 213 by the first conveying unit 12. The second machining assembly 30 further includes a second machining machine tool 31. The second conveying unit 32 can move the ball cage assembly 40 on the fine positioning seat 231 to the second machining machine tool 31, and the second machining machine tool 31 can finely machine the rolling groove 43 to make the surface of the rolling groove 43 smoother.

[0049] Further, the middle conveying assembly 20 further comprises a fine positioning unit 23. The fine positioning unit 23 comprises a fine positioning seat 231. The fine positioning seat 231 is connected with a fine positioning part 232. When the ball cage assembly 40 is sleeved on the outer peripheral side of the positioning part, the fine positioning seat 231 can support the ball cage assembly 40. As shown in Figure 5 The second conveying unit 32 can comprise a second horizontal rail 321, a second horizontal sliding block 322, a second vertical rail 323, a second vertical sliding block 324, and a second clamping jaw 325. The second horizontal rail 321 is connected with the second horizontal sliding block 322 in a sliding manner. The second horizontal sliding block 322 moves in the horizontal direction. The second vertical rail 323 is connected at one end of the second horizontal sliding block 322. The second vertical sliding block 324 is connected with the second vertical rail 323 in a sliding manner. The second vertical sliding block 324 moves in the vertical direction. The second clamping jaw 325 is connected at one end of the second vertical sliding block 324 close to the fine positioning seat 231. The second clamping jaw 325 can grab the ball cage assembly 40 and move to a designated position under the action of the second horizontal sliding block 322 and the second vertical sliding block 324. As shown in Figure 6 、 Figure 7 The ball cage assembly 40 can comprise a ball cage shell 41, a connecting shaft 42, and a rolling groove 43. The ball cage shell 41 is provided as a shell with one end open. The connecting shaft 42 is connected at one end of the ball cage shell 41. The connecting shaft 42 can cooperate with other components to transmit power. The rolling groove 43 is recessed from the inner peripheral wall of the ball cage shell 41 towards the outer peripheral wall of the ball cage shell 41. The rolling groove 43 can be provided with a ball bearing to cooperate with other components to achieve variable distance transmission or variable angle transmission.

[0050] Further, as shown in Figure 1 、 Figure 4As shown, the path of the first conveying unit 12 carrying the ball cage assembly 40 includes a vertical direction carrying path and a horizontal direction carrying path; the path of the second conveying unit 22 carrying the ball cage assembly 40 includes a vertical direction carrying path and a horizontal direction carrying path; in this way, the ball cage assembly 40 moves in the vertical direction and the horizontal direction respectively, which can be more easily controlled, when the ball cage assembly 40 moves in the vertical direction, the vibration of the ball cage assembly 40 in the vertical direction is mainly controlled, when the ball cage assembly 40 moves in the horizontal direction, the vibration of the ball cage assembly 40 in the horizontal direction is mainly controlled, thereby reducing the displacement of the rolling groove 43 during the movement of the second conveying unit 22. The length of the vertical direction carrying path of the first conveying unit 12 carrying the ball cage assembly 40 is greater than the length of the vertical direction carrying path of the second conveying unit 22 carrying the ball cage assembly 40; the length of the horizontal direction carrying path of the first conveying unit 12 carrying the ball cage assembly 40 is greater than the length of the horizontal direction carrying path of the second conveying unit 22 carrying the ball cage assembly 40. The ball cage assembly 40 moves a longer distance on the second conveying unit 22, so that the ball cage assembly 40 vibrates for a longer time when the second conveying unit 22 is running, and the displacement distance of the rolling groove 43 during the movement of the second conveying unit 22 is greater. Only after the ball cage assembly 40 is sleeved on the outer peripheral side of the coarse positioning portion 214, the cooperation gap between the ball cage assembly 40 and the coarse positioning portion 214 in the circumferential direction of the ball cage assembly 40 is larger, and the ball cage assembly 40 can be vertically lowered to be sleeved on the outer peripheral side of the coarse positioning portion 214 and allow the coarse positioning portion 214 to correct the position of the rolling groove 43, thereby achieving coarse positioning of the rolling groove 43. After coarse positioning, the second conveying unit 22 carries the ball cage assembly 40 to move to the outer peripheral side of the fine positioning portion 232, only when the cooperation gap between the fine positioning portion 232 and the ball cage assembly 40 in the circumferential direction of the ball cage assembly 40 is smaller, the position error of the rolling groove 43 can be further reduced, and the path of the second conveying unit 22 carrying the ball cage assembly 40 is shorter, which can reduce the vibration generated by the operation of the second conveying unit 22, so that the displacement distance of the rolling groove 43 is smaller, and the ball cage assembly 40 can be smoothly sleeved on the outer peripheral side of the fine positioning portion 232.

[0051] Further, as Figure 3 、 Figure 4As shown, the middle conveying assembly 20 further comprises a first middle conveying unit 21; the first middle conveying unit 21 comprises a first middle flat track 211, a first middle flat slider 212, a coarse positioning seat 213, and a coarse positioning part 214; the first middle flat slider 212, the coarse positioning seat 213, and the coarse positioning part 214 can be sequentially connected in the vertical direction; the first middle flat slider 212 is in sliding connection with the first middle flat track 211, and the first middle flat slider 212 moves in the horizontal direction; the second middle conveying unit 22 is arranged at a distance from the projection of the first conveying unit 12 on the set horizontal plane, so that the second middle conveying unit 22 and the first conveying unit 12 do not interfere with each other in any state, and even if the predetermined program of the machining system of the cage assembly 40 is disordered, the second middle conveying unit 22 and the first conveying unit 12 will not collide with each other, and the occurrence of unexpected situations is maximally avoided.

[0052] The machining system of the cage assembly 40 comprises a first middle conveying state; the first middle conveying state comprises that the projection of the coarse positioning part 214 on the set horizontal plane at least partially coincides with the projection of the second middle conveying unit 22 on the set horizontal plane. When the first middle flat slider 212 slides on the first middle flat track 211 and moves the coarse positioning part 214 to a position close to the first middle conveying unit 21 through the coarse positioning seat 213, the first conveying unit 12 can carry the cage assembly 40 above the coarse positioning seat 213, and then set the cage assembly 40 on the outer circumferential side of the coarse positioning seat 213, so that the rolling groove 43 at least partially coincides with the coarse positioning seat 213, thereby reducing the positional error of the rolling groove 43 in the circumferential direction of the coarse positioning seat 213. Subsequently, the coarse positioning part 214 moves towards the second middle conveying unit 22 to the first middle conveying state, so that the second middle conveying unit 22 can grab the cage assembly 40 on the coarse positioning part 214.

[0053] Further, as shown in Figure 3 , Figure 4 After the cage assembly 40 is set on the outer circumferential side of the coarse positioning part 214, the fitting gap of the cage assembly 40 and the coarse positioning part 214 in the circumferential direction of the cage assembly 40 is large, the impact force when the rolling groove 43 collides with the coarse positioning part 214 is large, and the translation path length of the coarse positioning part 214 is smaller than the path length of the second middle conveying unit 22 for horizontally carrying the cage assembly 40, so that the damage and abnormal wear caused by the relative collision between the cage assembly 40 and the coarse positioning part 214 during the movement of the coarse positioning part 214 can be reduced.

[0054] Further, as shown in Figure 3 , Figure 4As shown, since the ball cage assembly 40 is sleeved on the outer circumferential side of the coarse positioning portion 214 after being carried by the first conveying unit 12, the fitting gap between the ball cage assembly 40 and the coarse positioning portion 214 in the circumferential direction of the ball cage assembly 40 is large, which can allow the ball cage assembly 40 to withstand vibration for a long time on the first conveying unit 12, so that the rolling groove 43 is displaced more, and thus the path length of the first conveying unit 12 for carrying the ball cage assembly 40 is greater than the path length of the middle conveying assembly 20 for carrying the ball cage assembly 40. After the coarse positioning portion 214 coarsely positions the ball cage assembly 40, the ball cage assembly 40 is sleeved on the outer circumferential side of the fine positioning portion 232 through short-distance and less-vibration carrying, so that the fine positioning portion 232 further reduces the position error of the rolling groove 43.

[0055] The path length of the middle conveying assembly 20 for carrying the ball cage assembly 40 is the sum of the path length of the second middle conveying unit 22 for carrying the ball cage assembly 40 and the path length of the coarse positioning portion 214 for translation, so that the second middle conveying unit 22 and the coarse positioning portion 214 respectively move the ball cage assembly 40, which can more easily reduce the displacement of the rolling groove 43 during movement.

[0056] Further, as shown, Figure 1 The first conveying unit 12 includes a first horizontal rail 121, a first horizontal sliding block 122, a first vertical rail 123, a first vertical sliding block 124, and a clamping module 125. The first horizontal rail 121 is in sliding connection with the first horizontal sliding block 122, so that the first horizontal sliding block 122 moves in the horizontal direction. The first vertical rail 123 is connected with the first horizontal sliding block 122. The first vertical sliding block 124 is in sliding connection with the first vertical rail 123, so that the first vertical sliding block 124 moves in the vertical direction. The clamping module 125 is connected with the first vertical sliding block 124 at one end close to the coarse positioning seat 213. The sliding direction of the first horizontal sliding block 122 is perpendicular to the sliding direction of the first vertical sliding block 124.

[0057] The ball cage assembly 40 machining system includes a first conveying state. The first conveying state includes clamping or loosening the ball cage assembly 40 by the clamping module 125. The first conveying state also includes sliding of the first horizontal sliding block 122 and / or sliding of the first vertical sliding block 124. When the ball cage assembly 40 needs to be moved, the clamping module 125 grabs the ball cage assembly 40, and then moves the ball cage assembly 40 to be sleeved on the outer circumferential side of the coarse positioning portion 214 through the first horizontal sliding block 122 and the first vertical sliding block 124, and then loosens the ball cage assembly 40, so as to coarsely position the ball cage assembly 40.

[0058] Further, as shown, Figure 2As shown, the clamping module 125 includes a turnover part 1251, a jaw base 1252, and a first clamping jaw 1253; one end of the first vertical sliding block 124, the turnover part 1251, the jaw base 1252, and the first clamping jaw 1253 are connected in sequence; the first conveying state further includes that the first clamping jaw 1253 clamps or releases the ball cage assembly 40; the first conveying state further includes that the turnover part 1251 drives the central axis of the ball cage assembly 40 clamped by the first clamping jaw 1253 to swing in the horizontal and vertical directions. When the ball cage assembly 40 needs to be moved, the clamping module 125 grabs the connecting shaft 42 of the ball cage assembly 40, and then the turnover part 1251 drives the central axis of the ball cage assembly 40 clamped by the first clamping jaw 1253 to swing in the horizontal and vertical directions to be parallel to the horizontal plane, and then moves the ball cage assembly 40 to above the coarse positioning part 214 through the first smooth block 122 and the first vertical sliding block 124, and then the turnover part 1251 makes the central axis of the ball cage assembly 40 coincide with the central axis of the coarse positioning part 214 through the first clamping jaw 1253, and then the first vertical sliding block 124 moves downward to make the ball cage assembly 40 be sleeved on the outer circumferential side of the coarse positioning part 214, and then releases the ball cage assembly 40, thereby realizing the coarse positioning of the ball cage assembly 40. When the central axis of the ball cage assembly 40 is parallel to the horizontal plane, the friction between the connecting shaft 42 and the first clamping jaw 1253 can be prevented from being insufficient to cause the connecting shaft 42 and the first clamping jaw 1253 to separate from each other.

[0059] Further, as shown in FIG. 2, the second conveying system 20 includes a second conveying unit 22 and a second positioning unit 23. Figure 4 As shown, the second middle conveying unit 22 includes a second middle horizontal rail 221, a second middle smooth block 222, a middle vertical rail 223, a middle vertical sliding block 224, and a middle clamping jaw 225; the second middle horizontal rail 221 is connected with the second middle smooth block 222 in sliding mode, and the second middle smooth block 222 can move in the horizontal direction; the second middle smooth block 222 is connected with the middle vertical rail 223; the middle vertical rail 223 is connected with the middle vertical sliding block 224 in sliding mode, and the second middle smooth block 222 can move in the vertical direction; one end of the middle vertical sliding block 224 is connected with the middle clamping jaw 225.

[0060] The ball cage assembly 40 processing system includes a second middle conveying state; the second middle conveying state includes that the middle clamping jaw 225 clamps or releases the ball cage assembly 40; the second middle conveying state further includes that the second middle smooth block 222 slides and / or the middle vertical sliding block 224 slides. In the process of moving the ball cage assembly 40 from the coarse positioning seat 213 to the fine positioning seat 231, the middle clamping jaw 225 clamps the ball cage assembly 40, then the second middle smooth block 222 moves vertically upward, then the second middle smooth block 222 moves in the horizontal direction towards the fine positioning seat 231, and then the second middle smooth block 222 moves vertically downward to make the ball cage assembly 40 be sleeved on the outer circumferential side of the fine positioning seat 231, so that the fine positioning seat 231 reduces the position error of the rolling groove 43.

[0061] Second embodiment:

[0062] This embodiment provides a method for processing a ball cage assembly 40. This method is applied to any of the ball cage assembly 40 processing systems described in the above embodiments, such as... Figure 8 As shown, the processing method of the ball cage assembly 40 may include steps S10 to S30, and steps S10 to S30 will be described in detail below.

[0063] In step S10, the first conveying unit 12 transports the ball cage assembly 40 to cooperate with the coarse positioning part 214, so that the coarse positioning part 214 corrects the displacement of the rolling groove 43 during the movement of the ball cage assembly 40 on the first conveying unit 12.

[0064] In step S20, based on the first conveying unit 12 moving away from above the coarse positioning section 214, the second intermediate conveying unit 22 transports the ball cage assembly 40 from the coarse positioning section 214 to cooperate with the fine positioning section 232. The second intermediate conveying unit 22 only begins operation after the first conveying unit 12 has moved away from above the coarse positioning section 214, thus avoiding interference between the second intermediate conveying unit 22 and the first conveying unit 12. The fine positioning section 232 can further correct the positional error caused by the displacement of the rolling groove 43 during the movement of the ball cage assembly 40 on the second intermediate conveying unit.

[0065] In step S30, based on the fact that the second intermediate conveying unit 22 is above the precision positioning part 232, the second conveying unit 32 can move the ball cage assembly 40 away from the precision positioning part 232.

[0066] Furthermore, such as Figure 4 As shown, the intermediate conveying assembly 20 also includes a first intermediate conveying unit 21; the first intermediate conveying unit 21 includes a first intermediate level track 211, a first intermediate level smooth block 212, a coarse positioning seat 213, and a coarse positioning part 214;

[0067] Step S20 includes steps S21 to S22. Steps S21 to S22 will be described in detail below. Steps S10, S21, S22 and S30 are executed in sequence.

[0068] Step S21: Based on the first conveying unit 12 leaving the coarse positioning part 214, the first intermediate smoothing block 212 drives the ball cage assembly 40 on the coarse positioning part 214 to move towards the second intermediate conveying unit 22 to the set area; wherein, the projection of the set area on the set horizontal plane and the projection of the first conveying unit 12 on the set horizontal plane are set at intervals.

[0069] In step S22, based on the ball cage assembly 40 on the coarse positioning part 214 moving to the set area, the second intermediate conveying unit 22 conveys the ball cage assembly 40 from the coarse positioning part 214 to cooperate with the fine positioning part 232. This arrangement can physically completely avoid the first conveying unit 12 and the second intermediate conveying unit 22 colliding when grabbing the ball cage assembly 40 due to program exceptions and the like, and improve the safety during processing.

[0070] In some other embodiments, the ball cage assembly 40 processing method further includes step S40, which can be described in detail below. Steps S10, S20, and S40 are executed in sequence.

[0071] In step S40, based on the second intermediate conveying unit 22 leaving above the fine positioning part 232, the second intermediate conveying unit 22 is driven to the set area, so that when the ball cage assembly 40 on the next coarse positioning part 214 moves to the set area, the second intermediate conveying unit 22 can immediately grab the ball cage assembly 40 on the coarse positioning part 214, and the processing efficiency can be improved.

[0072] Those skilled in the art can understand that the above-mentioned embodiments are specific cases for implementing the present disclosure, and in actual application, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A ball cage assembly machining system characterized by, The ball cage assembly processing system comprises: A first conveying unit; A middle conveying assembly comprising a coarse positioning part, a second middle conveying unit, and a fine positioning part; the first conveying unit carries the ball cage assembly to cooperate with the coarse positioning part; the second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part; the path length of the first conveying unit carrying the ball cage assembly is greater than the path length of the second middle conveying unit carrying the ball cage assembly; the gap between the ball cage assembly and the coarse positioning part is greater than the gap between the ball cage assembly and the fine positioning part; A second conveying unit that carries the ball cage assembly away from the fine positioning part; The middle conveying assembly further comprises a first middle conveying unit; the first middle conveying unit comprises a first middle flat track, a first middle flat slider, a coarse positioning seat, and the coarse positioning part; the first middle flat slider, the coarse positioning seat, and the coarse positioning part are connected in sequence; the first middle flat slider is in sliding connection with the first middle flat track; the projection of the second middle conveying unit on a set horizontal plane is spaced apart from the projection of the first conveying unit on the set horizontal plane; The ball cage assembly processing system comprises a first middle conveying state; the first middle conveying state comprises that the projection of the coarse positioning part on the set horizontal plane at least partially coincides with the projection of the second middle conveying unit on the set horizontal plane.

2. The ball cage assembly processing system according to claim 1, wherein The path of the first conveying unit carrying the ball cage assembly comprises a vertical direction carrying path and a horizontal direction carrying path; the path of the second middle conveying unit carrying the ball cage assembly comprises a vertical direction carrying path and a horizontal direction carrying path; the vertical direction carrying path length of the first conveying unit carrying the ball cage assembly is greater than the vertical direction carrying path length of the second middle conveying unit carrying the ball cage assembly; the horizontal direction carrying path length of the first conveying unit carrying the ball cage assembly is greater than the horizontal direction carrying path length of the second middle conveying unit carrying the ball cage assembly.

3. The ball cage assembly processing system according to claim 1, wherein The coarse positioning part translation path length is less than the horizontal path length of the second middle conveying unit carrying the ball cage assembly.

4. The ball cage assembly processing system according to claim 1, wherein The path length of the first conveying unit carrying the ball cage assembly is greater than the path length of the middle conveying assembly carrying the ball cage assembly; The path length of the middle conveying assembly carrying the ball cage assembly is the sum of the path length of the second middle conveying unit carrying the ball cage assembly and the coarse positioning part translation path length.

5. The ball cage assembly processing system according to claim 1, wherein The first conveying unit comprises a first horizontal rail, a first horizontal sliding block, a first vertical rail, a first vertical sliding block and a clamping module; the first horizontal rail is in sliding connection with the first horizontal sliding block; the first vertical rail is connected with the first horizontal sliding block; the first vertical sliding block is in sliding connection with the first vertical rail; one end of the first vertical sliding block is connected with the clamping module; the sliding direction of the first horizontal sliding block is perpendicular to the sliding direction of the first vertical sliding block; The ball cage assembly processing system comprises a first conveying state; the first conveying state comprises that the clamping module clamps or releases the ball cage assembly; the first conveying state further comprises that the first horizontal sliding block slides and / or the first vertical sliding block slides.

6. The ball cage assembly processing system according to claim 5, wherein The clamping module comprises a turnover part, a claw base and a first clamping claw; one end of the first vertical sliding block, the turnover part, the claw base and the first clamping claw are connected in sequence; the first conveying state further comprises that the first clamping claw clamps or releases the ball cage assembly; the first conveying state further comprises that the turnover part drives the central axis of the ball cage assembly clamped by the first clamping claw to swing in horizontal and vertical directions.

7. The ball cage assembly processing system according to claim 1, wherein The second middle conveying unit comprises a second middle horizontal rail, a second middle horizontal sliding block, a middle vertical rail, a middle vertical sliding block and a middle clamping claw; the second middle horizontal rail is in sliding connection with the second middle horizontal sliding block; the second middle horizontal sliding block is connected with the middle vertical rail; the middle vertical rail is in sliding connection with the middle vertical sliding block; one end of the middle vertical sliding block is connected with the middle clamping claw; The ball cage assembly processing system comprises a second middle conveying state; the second middle conveying state comprises that the middle clamping claw clamps or releases the ball cage assembly; the second middle conveying state further comprises that the second middle horizontal sliding block slides and / or the middle vertical sliding block slides.

8. A method of machining a ball cage assembly, characterized by, The ball cage assembly processing method is applied to the ball cage assembly processing system according to any one of claims 1-7; The first conveying unit carries the ball cage assembly to cooperate with the coarse positioning part; Based on that the first conveying unit leaves above the coarse positioning part, the second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part; Based on that the second middle conveying unit leaves above the fine positioning part, the second conveying unit carries the ball cage assembly away from the fine positioning part.

9. The ball cage assembly processing method according to claim 8, wherein The middle conveying assembly further comprises a first middle conveying unit; the first middle conveying unit comprises a first middle horizontal rail, a first middle horizontal sliding block, a coarse positioning seat and a coarse positioning part; The second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part based on that the first conveying unit leaves above the coarse positioning part comprises: Based on the first conveying unit leaving above the coarse positioning part, the first middle smooth block drives the ball cage assembly on the coarse positioning part to move to a set area in the direction close to the second middle conveying unit; wherein the projection of the set area on a set horizontal plane is spaced apart from the projection of the first conveying unit on the set horizontal plane; Based on the ball cage assembly on the coarse positioning part moving to the set area, the second middle conveying unit carries the ball cage assembly from the coarse positioning part to cooperate with the fine positioning part.

10. The ball cage assembly processing method according to claim 9, wherein the ball cage assembly processing method further comprises: Based on the second middle conveying unit leaving above the fine positioning part, the driving part drives part of the second middle conveying unit to a set area. ​

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