CN113083606B - Clamping device of plastic-impregnated bearing retainer and plastic-impregnated process - Google Patents

Abstract

The invention discloses a clamping device and a plastic dipping process for a plastic dipping bearing retainer, wherein the retainer is provided with process holes, the process holes are arranged between adjacent pockets of the retainer and are uniformly arranged at intervals along the circumferential direction of the retainer, the clamping device comprises a clamping piece, a radial displacement mechanism and an axial lifting mechanism, and the clamping piece is inserted into the process holes and is only contacted with the inner side wall of the process holes; the radial displacement mechanism comprises at least three synchronous driving parts and moving parts, the moving parts are respectively connected with the synchronous driving parts, the synchronous driving parts are used for driving the moving parts to synchronously displace along the radial direction of the retainer, and the moving parts are connected with the clamping parts so as to drive the clamping parts to enter and exit the corresponding process holes; the axial lifting mechanism is arranged above the radial displacement mechanism and connected with the radial displacement mechanism so as to drive the radial displacement mechanism and the clamping piece to move along the axial direction of the retainer. This application makes the working surface who soaks the retainer after moulding reach full plastic layer, and centre gripping vestige can not appear in the surface.

Description

Clamping device of plastic-impregnated bearing retainer and plastic-impregnated process

Technical Field

The invention relates to the technical field of bearings, in particular to a clamping device of a plastic-impregnated bearing retainer and a plastic-impregnated process.

Background

When the rolling bearing works, particularly when the load is complex and the rolling bearing rotates at high speed, the retainer bears large centrifugal force, impact and vibration, large sliding friction exists between the retainer and the rolling bearing, and a large amount of heat is generated. The combined effect of force and heat can lead to cage failure, and in severe cases, can cause cage burn and fracture. Therefore, the material of the retainer is required to have good thermal conductivity, good wear resistance, small friction coefficient, smaller density, certain strength and toughness matching, better elasticity and rigidity, expansion coefficient similar to that of the rolling body and good processing property. Especially in the wind-powered electricity generation field, wind-powered electricity generation product need use large-scale bearing holder, the functional requirement to the bearing holder is higher, the bearing holder in wind-powered electricity generation field adopts the metal main part to cover at present and moulds the layer structure outward, the processing technology who moulds the layer mainly includes spray plastics and soaks moulds two kinds, from product performance analysis, it is better to soak and mould the holder, nevertheless soak at present and mould the holder product and have the defect, in moulding the layer processing process, the metal main part that needs to correspond the holder carries out the centre gripping, the removal operation, current centre gripping equipment can leave the scratch at the lateral wall of holder, make and mould the layer and have the defect, can't realize that plastic layer covers at the surface of metal main part, lead to soaking the performance of moulding the bearing holder and have the defect, need to solve urgently.

Disclosure of Invention

The invention provides a clamping device of a plastic-impregnated bearing retainer, which is characterized in that a clamping piece is inserted into a process hole of the bearing retainer and is only in contact fit with the inner side wall of the process hole, so that when the bearing retainer is used for processing a plastic layer, the working surface of the retainer is not shielded by the clamping piece, the working surface of the retainer after the plastic layer forms an all-plastic layer, clamping marks cannot be generated, and the working performance of the plastic-impregnated bearing retainer cannot be influenced. The application also comprises a radial displacement mechanism and an axial lifting mechanism so as to realize clamping and taking and placing of the retainer.

By the aid of the plastic layer processing method, the plastic layer processing procedure of the retainer can be completed, the working surface of the retainer is enabled to obtain a complete plastic layer, and the technical problems explained in the background technology are effectively solved.

The process holes are arranged, so that clamping is facilitated, the overall strength of the retainer can be balanced, the centrifugal force and the inertia force borne by the retainer are distributed in an overall structure in a balanced manner when the rolling bearing rotates, the phenomenon that structural abrasion occurs between the retainer, a bearing rolling body and an inner ring and an outer ring of the bearing due to the fact that the retainer is subjected to large centrifugal force, impact and vibration and the problem that the strength is unbalanced is avoided, further, the phenomenon that the abrasion resistance of the retainer is unbalanced due to cracking of a plastic layer is avoided, the service life and the working effect of the retainer are sharply reduced, and even the phenomenon that the retainer is broken is avoided.

In order to solve the technical problems in the background art, the invention specifically adopts the following technical scheme:

a soak clamping device who moulds bearing retainer for with the process hole contact of retainer establishes the centre gripping relation, the process hole set up in between the adjacent pocket of retainer, just the process hole is followed the even interval of circumference of retainer sets up, clamping device includes:

the clamping piece is inserted into the technical hole and only contacts with the inner side wall of the technical hole;

the radial displacement mechanism comprises at least three moving parts and synchronous driving parts, the moving parts are respectively connected with the synchronous driving parts, the synchronous driving parts are used for driving the moving parts to synchronously displace along the radial direction of the retainer, and the moving parts are connected with the clamping parts so as to drive the clamping parts to enter and exit the corresponding process holes;

and the axial lifting mechanism is arranged above the radial displacement mechanism and is connected with the radial displacement mechanism so as to drive the radial displacement mechanism and the clamping piece to move along the axial direction of the retainer.

From this, the holder inserts the fabrication hole, only cooperate with the inside wall of fabrication hole, do not contact with other faces of holder, mould the layer back, the vestige of centre gripping can not appear in the surface of holder, the face's of moulding is soaked in the assurance is complete, the effect of moulding is soaked in the dipping of holder has been guaranteed effectively, further heat conductivity, the wearability etc. of holder have been ensured, avoid the holder because of moulding the layer incomplete, when the bearing operates for a long time, wearing and tearing and fracture appear in incomplete mould layer, cause other parts in holder and the bearing to take place structural wear, lead to vibrations, noise and the phenomenon of generating heat.

The radial displacement mechanism is used for enabling the clamping piece to move along the radial direction of the retainer, so that the clamping piece can enter and exit the technical hole, and clamping action is realized.

The axial lifting mechanism is used for enabling the clamping piece to have the action of moving along the axial direction of the retainer, so that the clamping piece can be transported to finish the actions of placing the clamping piece into the molding powder pool and taking the clamping piece out of the molding powder pool.

By above, this scheme can realize the centre gripping and get and put the holder, has accomplished the manufacturing procedure that the layer was moulded to the holder, makes the holder obtain complete layer of moulding, has solved current technical problem.

In addition, it should be noted that, as those skilled in the art can understand, there are various ways to align the clamping member with the process hole, such as positioning by manual assistance, and increasing a supporting holder rotating disc or a sensor suite to achieve automatic positioning, but how to achieve positioning of the clamping member and the process hole is not an invention point to be protected in this application, and does not cause technical limitation on the technical scheme of this application.

Further, this application still includes angle fine-tuning, and it includes rotates the piece, rotate the piece with the holder links to each other, the axis of rotation of rotating the piece is on a parallel with the axis of keeping the ware makes the holder aims at the fabrication hole. From this setting, the holder can rotate, has made things convenient for the angular adjustment of holder for the fabrication hole can be aimed at to the holder accuracy, uses manpower sparingly.

Furthermore, the clamping piece comprises a clamping rod, and the shape of the end surface of the clamping rod is arranged corresponding to the shape of the fabrication hole; the radial size of one end of the clamping rod is larger than that of the process hole and is set as a first end; the radial size of the other end of the clamping rod is less than or equal to that of the process hole, and the other end is set as a second end; so that the clamping rod can be in interference fit with the process hole.

From this setting for the supporting rod extrudees with the downthehole side of fabrication hole gradually at the in-process that stretches into the fabrication hole, and supporting rod chucking fabrication hole forms interference fit, thereby makes supporting rod and bearing holder have closely firm being connected, and through the size that sets up the supporting rod both ends, makes the supporting rod can adapt to the fabrication hole of multiple size of a dimension, makes this clamping device can adapt to multiple model holder, and adaptability and commonality are good.

Furthermore, the clamping rods and the moving member are detachably connected through connecting rods. The clamping rod is convenient to replace due to the arrangement, the clamping rod can be adaptively replaced according to different process holes, and the maintenance and production cost is reduced.

Further, the holder includes supporting rod and clamping screw, the second end of supporting rod is equipped with the screw hole, clamping screw with the connection can be dismantled to the screw hole, just the connecting rod with clamping screw links to each other. The processing technology development of screw thread is ripe, sets up from this, adopts threaded connection's the connection mode of dismantling to make things convenient for processing and not lose the connectivity, reduces manufacturing cost, and the supporting rod can be specifically conveniently dismantled, can correspond different fabrication holes and change, perhaps maintain.

Further, the synchronous driving part comprises a shell, a rotating disc and a first motor, the rotating disc is arranged in the shell, the central axis of the rotating disc is arranged along the axial direction of the retainer, a sliding groove matched with the moving part is formed in the bottom surface of the shell, and the matching surface of the moving part and the rotating disc is arranged into a plane rectangular thread, so that the rotating disc rotates to drive the moving frame to move along the sliding groove. From this setting, the casing is used for bearing, has plane rectangle screw thread on the fitting surface of rolling disc and moving member, and the moving member installation and joint are in the spout of casing bottom surface, and when the rolling disc rotated under the drive of first motor, the moving member moved along the spout under the drive of rolling disc, carries out the displacement action along the radial direction of holder.

Furthermore, the rotating disc is set to be a conical gear wheel, a conical pinion meshed with the conical gear wheel is further arranged in the shell, a rotating part is reserved in the conical pinion, and a manual operation hole corresponding to the rotating part is formed in the side wall of the shell. Therefore, when the rotating disc is in failure or the clamping piece needs small displacement, the rotating part of the conical pinion can be rotated through the manual operation hole, and therefore the rotating disc can be adjusted.

Furthermore, the axial lifting mechanism is an electric hoist or a lifting cylinder or a lifting oil cylinder. The specific structure of the electric hoist and the lifting cylinder or the lifting oil cylinder is common knowledge, the specific principle and the specific equipment structure are also commercially available products, and the design cost is reduced.

Furthermore, the rotating part comprises a second motor, a base of the second motor is connected with the moving part, and an output shaft of the second motor is connected with the clamping part. Therefore, the rotating part can drive the clamping part to rotate under the driving of the second motor, and automatic steering alignment of the clamping part is realized.

Furthermore, the rotating part comprises a second motor, a base of the second motor is connected with the moving part, an output shaft of the second motor is connected with the driving gear, the driving gear is meshed with the driven gear, and the driven gear is coaxially connected with the connecting rod. Therefore, the gravity of the retainer can not be directly borne by the second motor through the motor output shaft of the second motor, but acts on the moving piece and is borne by the shell finally, and the second motor can be prevented from being damaged by pulling.

Further, this application still includes running gear, running gear includes track and walking piece, the track set up in axial elevating system's top, the walking piece is followed rail movement, axial elevating system with the walking piece links to each other. Therefore, the retainer can be moved in all directions, and the retainer is convenient to transport.

Further, the plastic dipping method of the clamping device for the bearing retainer comprises the following steps:

s1: machining pockets in a surface of the retainer, and machining the process holes between adjacent pockets;

s2: the axial lifting mechanism drives the clamping pieces to move to the height parallel to the process holes, and the clamping pieces are respectively aligned to the process holes;

s3: the radial displacement mechanism acts to enable the synchronous driving piece to drive the clamping piece to synchronously displace and insert the clamping piece into the technical hole to establish a clamping connection relationship;

s4: the travelling mechanism and the axial lifting mechanism are matched with each other, and the retainer is moved to a heating furnace to be heated to the plastic dipping temperature;

s5: the travelling mechanism and the axial lifting mechanism are matched with each other again, the retainer reaching the plastic dipping temperature is moved to a plastic powder pool for plastic dipping, and the contact surface of the clamping piece and the retainer is only the inner side wall of the fabrication hole, so that the outer surface of the retainer is not contacted with plastic powder, and a full plastic layer is formed.

S6: the traveling mechanism and the axial lifting mechanism are matched with each other again, and the retainer after plastic dipping is moved to a cooling station for cooling and forming.

Therefore, the retainer can be clamped, taken and placed, the machining procedure of the plastic layer of the retainer is effectively completed, the bearing retainer is enabled to obtain a complete plastic layer, and the existing technical problem is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of an exemplary embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is a schematic view of a clamp according to an exemplary embodiment of the present invention;

FIG. 4 is a schematic diagram of a synchronous drive according to an exemplary embodiment of the present invention;

1. a holder; 11. a fabrication hole; 12. a pocket hole;

2. a clamping member; 21. a clamping rod; 211. a first end; 212. a second end; 22. a connecting rod; 23. fixing the screw rod;

3. a radial displacement mechanism; 31. a synchronous drive; 311. a housing; 313. a first motor; 314. a rotating part; 32. a moving member;

4. an axial lifting mechanism;

5. a rotating member; 51. a second motor; 52. a driving gear; 53. a driven gear;

6. a traveling mechanism; 61. a track; 62. a walking member.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The application provides a soak clamping device who moulds bearing retainer, insert holder 2 in the fabrication hole 11 of bearing retainer 1, make holder 2 only with the inside wall contact cooperation of fabrication hole 11, from this, bearing retainer 1 is when moulding the manufacturing procedure on layer, holder 2 can not shelter from the working surface of holder 1, the working surface of holder 1 behind the layer of moulding forms the all-plastic layer, the vestige of centre gripping can not appear, can not influence and soak the working property who moulds bearing retainer 1. The application also comprises a radial displacement mechanism 3 and an axial lifting mechanism 4 so as to realize clamping and taking and placing of the retainer 1. Therefore, the processing procedure of the plastic layer of the retainer 1 can be completed, and the working surface of the retainer 1 can be completely molded.

The arrangement of the process holes 11 can facilitate clamping and balance the overall strength of the retainer 1, so that when the rolling bearing rotates, the centrifugal force and the inertia force applied to the retainer 1 are distributed in the overall structure in a balanced manner, the phenomenon that the retainer 1, a bearing rolling body and an inner ring and an outer ring of the bearing are structurally worn due to the problem that the strength of the retainer 1 is unbalanced after the retainer 1 is subjected to larger centrifugal force, impact and vibration is avoided, further, the phenomenon that the abrasion resistance of the retainer 1 caused by cracking of a plastic layer is unbalanced is avoided, the service life and the working effect of the retainer 1 are sharply reduced, and even the retainer 1 is broken.

The specific scheme is as follows:

referring to fig. 1, fig. 1 is a clamping device for a plastic-impregnated bearing retainer, which is used for contacting with a fabrication hole 11 of the retainer 1 to establish a clamping relationship, the fabrication hole 11 is arranged between adjacent pockets 12 of the retainer 1, and the fabrication hole 11 is uniformly arranged along the circumferential direction of the retainer 1 at intervals, the clamping device comprises:

the clamping piece 2 is used for being inserted into the fabrication hole 11, and only contacts with the inner side wall of the fabrication hole 11;

the radial displacement mechanism 3 comprises synchronous driving parts 31 and moving parts 32, at least three moving parts 32 are arranged and are respectively connected to the synchronous driving parts 31, the synchronous driving parts 31 are used for driving the moving parts 32 to synchronously displace along the radial direction of the retainer 1, and the moving parts 32 are connected with the clamping parts 2 so as to drive the clamping parts 2 to enter and exit the corresponding fabrication holes 11;

and the axial lifting mechanism 4 is arranged above the radial displacement mechanism 3 and is connected with the radial displacement mechanism 3 so as to drive the radial displacement mechanism 3 and the clamping piece 2 to move along the axial direction of the retainer 1.

From this, holder 2 inserts fabrication hole 11, only cooperate with the inside wall of fabrication hole 11, do not contact with other faces of holder 1, mould the layer after, the vestige of centre gripping can not appear on the surface of holder 1, the face's of moulding by dipping is guaranteed to be complete, the effect of moulding by dipping of holder 1 has been guaranteed effectively, further guarantee holder 1's heat conductivity, wearability etc, avoid holder 1 because of moulding the layer incomplete, when the bearing operates for a long time, wearing and tearing and fracture appear in incomplete mould layer, cause holder 1 and other parts in the bearing to take place structural wear, lead to vibrations, noise and the phenomenon of generating heat. Meanwhile, the condition that the plastic layer is damaged to cause foreign matters in the bearing, the foreign matters are clamped between parts in the bearing to influence the operation of the bearing, more plastic layers are damaged, and serious vicious circle occurs is also avoided.

The radial displacement mechanism 3 is used for moving the clamping member 2 in the radial direction of the holder 1, so that the clamping member 2 can enter and exit the fabrication hole 11, thereby realizing the clamping action.

The axial lifting mechanism 4 is used to provide the gripping member 2 with a movement along the axial direction of the holder 1, enabling the gripping member 2 to be transported to perform the operations of placing in and taking out from the moulding powder tank.

By above, this application can realize the centre gripping and get and put holder 1, has accomplished holder 1 and has moulded the manufacturing procedure on layer, makes holder 1 obtain complete moulding the layer.

In addition, it should be noted that, as those skilled in the art can understand, there are various ways to align the clamping member 2 with the process hole 11, such as positioning by manual assistance, and increasing a rotating disc of the supporting holder 1 or a sensor kit to achieve automatic positioning, etc., but how to achieve positioning of the clamping member 2 and the process hole 11 is not an invention point to be protected by this application, and does not cause technical limitation to the technical scheme of this application.

Referring to fig. 2, the present application further includes an angle fine adjustment mechanism, which includes a rotating member 5, wherein the rotating member 5 is connected to the clamping member 2, and a rotation axis of the rotating member 5 is parallel to a central axis of the holder 1, so that the clamping member 2 is aligned with the fabrication hole 11. From this setting, holder 2 can rotate, has made things convenient for the angular adjustment of holder 2 for holder 2 can accurately aim at fabrication hole 11, uses manpower sparingly.

Referring to fig. 3, the clamping member 2 includes a clamping rod 21, and the end surface of the clamping rod 21 is shaped to correspond to the shape of the fabrication hole 11; one end of the clamping rod 21 has a radial size larger than that of the fabrication hole 11 and is set as a first end 211; the radial dimension of the other end of the clamping rod 21 is less than or equal to the radial dimension of the fabrication hole 11 and is set as a second end 212; enabling the clamping bar 21 to be interference fitted with the tooling hole 11.

From this setting for clamping rod 21 extrudees with fabrication hole 11 medial surface gradually at the in-process that stretches into fabrication hole 11, and clamping rod 21 chucking fabrication hole 11 forms interference fit, thereby makes clamping rod 21 and bearing retainer 1 have closely firm being connected. Those skilled in the art can understand that the radial dimension of the first end 211 of the clamping rod 21 can be set to be larger than the maximum radial direction of the fabrication hole 11 of the same kind of product, and the radial dimension of the second end 212 can be set to be equal to the minimum radial direction of the fabrication hole 11 of the same kind of product, so that the applicability of the clamping rod 21 is improved, frequent replacement of the clamping rod 21 due to different types of the fabrication hole 11 is avoided, the process is saved, and abrasion to the clamping rod 21 is avoided.

As a further optimization of the coupling engagement of the clamping lever 21 and the moving member 32, the clamping lever 21 and the moving member 32 are detachably coupled via the coupling lever 22. Therefore, the connecting rod 22 is convenient to replace, the clamping rods 21 can be adaptively replaced according to different process holes 11, and the maintenance and production cost is reduced.

Referring to fig. 3, the clamping member 2 includes a clamping rod 21 and a fixing screw, the second end 212 of the clamping rod 21 is provided with a threaded hole, the fixing screw and the threaded hole are detachably connected, and the connecting rod 22 and the fixing screw are connected. The processing technology development of screw thread is ripe, sets up from this, adopts threaded connection's the connection mode of dismantling to make things convenient for processing and not lose the connectivity, reduces manufacturing cost, and supporting rod 21 can be specifically conveniently dismantled, can correspond different fabrication holes 11 and change, perhaps maintain.

Referring to fig. 4, the synchronous driving member 31 includes a housing 311, a rotating disc and a first motor 313, the rotating disc is disposed in the housing 311, a central axis of the rotating disc is disposed along an axial direction of the holder 1, a sliding slot matched with the moving member 32 is disposed on a bottom surface of the housing 311, and a matching surface between the moving member 32 and the rotating disc is a planar rectangular thread, so that the rotating disc rotates to synchronously drive the moving frame to move along the sliding slot. From this setting, casing 311 is used for bearing, has plane rectangular screw on the fitting surface of rolling disc and moving member 32, and moving member 32 installs and joint in the spout of casing 311 bottom surface, and when the rolling disc rotated under the drive of first motor 313, moving member 32 moved along the spout under the drive of rolling disc, carries out the displacement action along the radial direction of holder 1.

Compared with triangular threads and trapezoidal threads, the planar rectangular threads are well machined, have no precision requirement and are high in bearing capacity. It should be noted that, the moving member 32 is engaged with the sliding slot on the bottom surface of the housing 311, that is, when the holding member 2 holds the holding frame 1, the gravity of the holding frame 1 is transmitted to the housing 311 through the moving member 32 along the holding member 2 and is carried by the housing 311, and thus the first motor 313 does not carry an axial load, which can prevent the first motor 313 from being damaged by pulling.

Those skilled in the art will appreciate that the first motor 313 may be equipped with a speed reducer to reduce power consumption and stably output driving force, so that the moving speed of the moving member 32 is uniformly controllable.

Referring to fig. 4, the rotating disc is a conical bull gear, a conical pinion engaged with the conical bull gear is further disposed in the housing 311, a rotating portion 314 is reserved in the conical pinion, and a manual operation hole corresponding to the rotating portion 314 is disposed on a side wall of the housing 311. Thus, when the rotary disk is out of order or the clamp 2 requires a small displacement, the rotary portion 314 of the taper pinion gear can be rotated through the manual operation hole, thereby achieving adjustment of the rotary disk. As can be understood by those skilled in the art, when the rotating disc is a conical bull gear, one end of the matching surface of the principle of the conical bull gear and the connecting piece can be provided with a lightening hole to realize light weight.

Referring to fig. 1, the axial elevating mechanism 4 is an electric hoist or an elevating cylinder. The specific structure of the electric hoist and the lifting cylinder or the lifting oil cylinder is common knowledge, the specific principle and the specific equipment structure are also commercially available products, and the design cost is reduced.

Referring to fig. 2, the rotation member 5 includes a second motor 51, a base of the second motor 51 is connected to the moving member 32, and an output shaft of the second motor 51 is connected to the holding member 2. Therefore, the rotating part 5 can drive the clamping part 2 to rotate under the driving of the second motor 51, and the automatic steering alignment of the clamping part 2 is realized.

Referring to fig. 2, the rotation member 5 includes a second motor 51, a base of the second motor 51 is connected to the moving member 32, an output shaft of the second motor 51 is connected to a driving gear 52, the driving gear 52 is engaged with a driven gear 53, and the driven gear 53 is coaxially connected to the connecting rod 22. Thus, the gravity of the holder 1 is not directly borne by the second motor 51 through the motor output shaft of the second motor 51, but acts on the moving member 32, and is finally borne by the housing 311, which can prevent the second motor 51 from being pulled out.

Referring to fig. 1, the present application further includes a traveling mechanism 6, where the traveling mechanism 6 includes a rail 61 and a traveling member 62, the rail 61 is disposed above the axial lifting mechanism 4, the traveling member 62 moves along the rail 61, and the axial lifting mechanism 4 is connected to the traveling member 62. Therefore, the holder 1 can be moved in all directions, and the holder 1 can be transported conveniently.

The plastic dipping method of the clamping device for the bearing retainer comprises the following steps:

s1: processing pockets 12 on the surface of the retainer 1, and processing fabrication holes 11 between the adjacent pockets 12;

s2: the axial lifting mechanism 4 drives the clamping pieces 2 to move to the height parallel to the process holes 11, and the clamping pieces 2 are respectively aligned with the process holes 11;

s3: the radial displacement mechanism 3 acts to enable the synchronous driving piece 31 to drive the clamping piece 2 to synchronously displace and insert the clamping piece into the technical hole 11 to establish a clamping connection relationship;

s4: the travelling mechanism 6 and the axial lifting mechanism 4 are matched with each other, and the retainer 1 is moved to a heating furnace to be heated to the plastic dipping temperature;

s5: the travelling mechanism 6 and the axial lifting mechanism 4 are matched with each other again, the retainer 1 reaching the plastic dipping temperature is moved to the plastic powder pool for plastic dipping, the contact surface of the clamping piece 2 and the retainer 1 is only the inner side wall of the fabrication hole 11, so that the outer surface of the retainer 1 is not contacted with the plastic powder, and a full plastic layer is formed.

S6: the traveling mechanism 6 and the axial lifting mechanism 4 are matched with each other again, and the retainer 1 after plastic dipping is moved to a cooling station for cooling and molding.

Therefore, the retainer 1 can be clamped, taken and placed, the plastic layer processing procedure of the retainer 1 is effectively completed, and the bearing retainer 1 is enabled to obtain a complete plastic layer.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a soak clamping device who moulds bearing retainer for with the handicraft hole contact of retainer establishes the centre gripping relation, the handicraft hole set up in between the adjacent pocket hole of retainer, just the handicraft hole is followed the even interval of circumference of retainer sets up, its characterized in that, clamping device includes:

the clamping piece is inserted into the technical hole and only contacts with the inner side wall of the technical hole;

the radial displacement mechanism comprises at least three moving parts and synchronous driving parts, the moving parts are respectively connected with the synchronous driving parts, the synchronous driving parts are used for driving the moving parts to synchronously displace along the radial direction of the retainer, and the moving parts are connected with the clamping parts so as to drive the clamping parts to enter and exit the corresponding process holes;

the axial lifting mechanism is arranged above the radial displacement mechanism and is connected with the radial displacement mechanism so as to drive the radial displacement mechanism and the clamping piece to move along the axial direction of the retainer;

the synchronous driving part comprises a shell, a rotating disc and a first motor, the rotating disc is arranged in the shell, the central axis of the rotating disc is arranged along the axial direction of the retainer, a sliding groove matched with the moving part is formed in the bottom surface of the shell, and the matching surface of the moving part and the rotating disc is provided with a plane rectangular thread, so that the rotating disc rotates to drive the moving part to move along the sliding groove synchronously;

the rotary disc is set to be a conical gear wheel, a conical pinion meshed with the conical gear wheel is further arranged in the shell, a rotating portion is reserved in the conical pinion, and a manual operation hole corresponding to the rotating portion is formed in the side wall of the shell.

2. The apparatus of claim 1, further comprising:

the angle fine adjustment mechanism comprises a rotating part, the rotating part is connected with the clamping part, the rotating axis of the rotating part is parallel to the central axis of the retainer, and the clamping part is aligned to the technical hole.

3. The clamping device for the plastic-impregnated bearing retainer as claimed in claim 2, wherein the clamping member comprises a clamping rod, and the shape of the end surface of the clamping rod corresponds to the shape of the process hole; the radial size of one end of the clamping rod is larger than that of the process hole and is set as a first end; the radial size of the other end of the clamping rod is less than or equal to that of the process hole, and the other end is set as a second end; so that the clamping rod can be in interference fit with the process hole.

4. The apparatus of claim 3, wherein the holding rod and the moving member are detachably connected via a connecting rod.

5. The clamping device for the plastic-impregnated bearing holder according to claim 4, wherein the clamping member comprises a clamping rod and a fixing screw, a threaded hole is formed at the second end of the clamping rod, the fixing screw is detachably connected with the threaded hole, and the connecting rod is connected with the fixing screw.

6. The clamping device for the plastic-impregnated bearing holder according to claim 1, wherein the axial lifting mechanism is an electric hoist or a lifting cylinder.

7. The apparatus of claim 2, wherein the rotating member comprises a second motor, a base of the second motor is coupled to the moving member, and an output shaft of the second motor is coupled to the holding member.

8. The plastic-impregnated bearing holder clamping device as claimed in claim 4, wherein the rotating member comprises a second motor, a base of the second motor is connected to the moving member, an output shaft of the second motor is connected to a driving gear, the driving gear is engaged with a driven gear, and the driven gear is coaxially connected to the connecting rod.

9. The apparatus of claim 1, further comprising:

the running mechanism comprises a track and a running part, the track is arranged above the axial lifting mechanism, the running part moves along the track, and the axial lifting mechanism is connected with the running part.

10. The plastic dipping method for a bearing retainer of the clamping device according to claim 9, which comprises the following steps:

s1: machining pockets in a surface of the retainer, and machining the process holes between adjacent pockets;

s2: the axial lifting mechanism drives the clamping pieces to move to the height parallel to the process holes, and the clamping pieces are respectively aligned to the process holes;

s3: the radial displacement mechanism acts to enable the synchronous driving piece to drive the clamping piece to synchronously displace and insert the clamping piece into the technical hole to establish a clamping connection relationship;

s4: the travelling mechanism and the axial lifting mechanism are matched with each other, and the retainer is moved to a heating furnace to be heated to the plastic dipping temperature;

s5: the travelling mechanism and the axial lifting mechanism are matched with each other again, the retainer reaching the plastic dipping temperature is moved to a plastic powder pool for plastic dipping, and the contact surface of the clamping piece and the retainer is only the inner side wall of the fabrication hole, so that the outer surface of the retainer is not contacted with plastic powder, and a full plastic layer is formed;

s6: the traveling mechanism and the axial lifting mechanism are matched with each other again, and the retainer after plastic dipping is moved to a cooling station for cooling and forming.

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