Bearing retainer nail penetrating equipment

Abstract

The utility model provides bearing retainer nail penetrating equipment, a nail pressing station and an empty batch output station are arranged behind a front station, the empty batch output station is provided with a gap bridge device, the gap bridge device provides support for transfer of an empty batch retainer among different stations when feeding is carried out on the nail pressing station, and the gap bridge device is provided with a gap bridge device when mold closing is carried out. And the nail pressing station executes a nail penetrating action on the empty batch holder to prepare a nail penetrating holder, and the empty batch holder on the gap bridge device is output at the empty batch output station. The gap bridge device is arranged to serve as a supporting device for transfer of the empty batch holder between the front station and the nail pressing station, the supporting function is provided during station transfer, the empty batch holder on the gap bridge device is directly output during preparation of the nail penetrating holder, synchronous output preparation of the empty batch holder and the nail penetrating holder can be achieved at the same time through one-time nail pressing action, and the production efficiency is improved. Continuous machining of the deep groove ball retainer is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, and more specifically to a nailing device for a bearing retainer. Background Art

[0002] Deep groove ball bearing is a common rolling bearing with a wide range of applications. Deep groove ball bearing consists of an inner ring, an outer ring, rolling elements and a retainer.

[0003] Deep groove ball retainers are used to fix and support the rolling elements of deep groove ball bearings, maintain the relative position of the rolling elements, and prevent them from colliding with each other and falling off. Deep groove ball retainers are usually made of metal and have a specific structure that can ensure that the rolling elements are evenly distributed inside the bearing and maintain their relative position.

[0004] The deep groove ball retainer includes two retainers that fit the rolling elements. One retainer is a nail-through retainer with pre-installed rivets, and the other is a blank retainer with only rivet holes processed. When the bearing is assembled, the nail-through retainer and the blank retainer are used in pairs to hold the rolling elements tightly and connect them through rivets.

[0005] During the preparation of existing deep groove ball retainers, empty batch retainers can be stamped out through forming, punching and other processes, while the nailing retainers need to be transferred to a nailing workshop where the nailing work of the empty batch retainers is performed manually. The existing nailing process is mostly manual or semi-automatic production, which occupies too much equipment and manpower, and increases production costs.

[0006] Therefore, how to improve the production efficiency of deep groove ball retainers is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0007] In view of this, the utility model provides a bearing cage nailing device to improve the production efficiency of deep groove ball cages.

[0008] In order to achieve the above object, the utility model provides the following technical solutions:

[0009] A bearing cage nailing device is used for the synchronous preparation of a blank batch cage and a nailing cage, comprising a front station for molding the blank batch cage on an annular substrate, a blank batch output station and a nailing station sequentially arranged at the front station,

[0010] A bridge device is provided on the empty batch output station, and the bridge device supports the empty batch holder to transfer the station when the nail pressing station is loading; and

[0011] When the nail-piercing retainer is prepared at the nail-pressing station, the empty batch retainer that continues to be fed in is output;

[0012] It also includes a retainer transfer device for transferring materials between the front station, the empty batch output station and the nail pressing station.

[0013] Preferably, in the above-mentioned bearing retainer nailing equipment, the nail pressing station includes a nail pressing lower die of the empty batch retainer carrying the material, and a nail pressing upper die cooperating with the nail pressing lower die;

[0014] The nail pressing upper die is provided with a plurality of nail feeding tubes for conveying rivets, and the nail outlets of the plurality of nail feeding tubes are arranged corresponding to the rivet holes on the blank batch retaining frame;

[0015] The upper die for pressing the rivets is also provided with a punch for pressing the rivets into the rivet holes after the rivet tube has been inserted.

[0016] Preferably, in the above-mentioned bearing retainer nailing equipment, the nail pressing lower die is also provided with a plurality of nail detection pins corresponding to the rivet holes respectively, and the nail pressing lower die is also provided with a nail missing monitoring device which cooperates with the plurality of nail detection pins respectively and is triggered after the rivet is pressed against the nail detection pin.

[0017] Preferably, in the above-mentioned bearing retainer nail piercing device, the nail pressing upper die includes a punching nail fixing plate and a nail feeding fixing plate, and a guide column connected to the nail feeding fixing plate extends from the punching nail fixing plate, and the nail feeding fixing plate is slidably arranged on the guide column, and the guide column is provided with an elastic reset structure for pushing the nail feeding fixing plate toward the nail pressing lower die.

[0018] Preferably, in the above-mentioned bearing retainer nail piercing device, the nail feed tube includes a main nail feed channel inclined to the punch nail arrangement, and a pressure nail channel opened on the nail feed fixing plate and arranged coaxially with the punch nail, and a tapered hole correction portion is reserved between the main nail feed channel and the pressure nail channel for correcting the rivet to a vertical arrangement.

[0019] Preferably, in the above-mentioned bearing retainer nail piercing device, a circular groove is opened in the middle of the nail feeding fixing plate, a rivet blocking structure filled with a flexible medium is arranged in the circular groove, and a microporous channel corresponding to the nail pressing channel and smaller than the inner diameter of the nail pressing channel is opened on the rivet blocking structure.

[0020] Preferably, in the above-mentioned bearing retainer nail piercing device, the elastic reset structure is a reset spring sleeved on the guide column; and the rivet blocking structure is a blocking rubber pad fixedly installed in the circular sink groove.

[0021] Preferably, in the above-mentioned bearing retainer nailing device, a bridge device and an empty batch conveyor belt arranged up and down are provided on the empty batch output station, and the bridge device includes a first bracket and a second bracket arranged oppositely, a first flap is provided on the top of the first bracket, and a second flap is provided on the top of the second bracket;

[0022] It also includes a driving device for driving the first flap and the second flap to open or close.

[0023] Preferably, in the above-mentioned bearing retainer nailing device, the front station includes a forming die arranged in sequence to perform circular bending on the annular substrate;

[0024] A shaping mold is used to shape the bent annular substrate into a spherical ball pocket; and

[0025] Punching rivet holes into the shaped annular substrate to prepare a punching die for the blank batch retainer;

[0026] A nail-piercing retainer conveyor belt for outputting the nail-piercing retainer is arranged at the rear end of the nail-pressing station; the conveying direction of the empty batch conveyor belt is arranged crosswise with the conveying direction of the nail-piercing retainer conveyor belt.

[0027] Preferably, in the above-mentioned bearing cage nailing equipment, the cage transfer device includes a first transfer arm and a second transfer arm respectively arranged on both sides of the front station, the empty batch output station and the nail pressing station,

[0028] The first transfer arm and the second transfer arm extend relatively to each other with corresponding different working positions, which are used to clamp and release the clamping claws of the empty batch holder or the nail holder;

[0029] A first sliding frame and a second sliding frame are respectively provided at both ends of the length direction of the first transfer arm and the second transfer arm. The first sliding frame and the second sliding frame both have a transverse guiding device for guiding the first transfer arm and the second transfer arm to move closer and farther away from each other, and a longitudinal guiding device for guiding the first transfer arm and the second transfer arm along their extension directions.

[0030] The bearing retainer nailing equipment provided by the utility model is used for the synchronous preparation of empty batch retainers and nailing retainers, including a front station for molding the empty batch retainers of annular substrates, an empty batch output station and a nail pressing station sequentially arranged at the front station, a bridge device is arranged at the empty batch output station, the bridge device supports the empty batch retainers for station transfer when the nail pressing station is feeding materials; and when the nailing retainers are prepared at the nail pressing station, the empty batch retainers that are continuously fed in are output; and also includes a retainer transfer device for transferring materials between the front station, the empty batch output station and the nail pressing station. The front station performs stamping and punching on the annular substrate for preparing the retainer to form an empty batch retainer. In order to realize the rivet insertion of the empty batch retainer, the rivet is installed into the rivet hole of the empty batch retainer by the nail pressing station. The nail pressing station and the empty batch output station are simultaneously arranged behind the front station. The empty batch output station is provided with a bridge device. When the nail pressing station is loaded, the bridge device provides support for the transfer of the empty batch retainer between different stations, and keeps the empty batch retainer at the same support height between different stations. After the empty batch retainer enters the nail pressing station, the empty batch retainer on the front station can repeatedly enter the bridge device. When the mold is closed, the nail pressing station performs the nail insertion action on the empty batch retainer to prepare the nail insertion retainer, and the empty batch retainer on the bridge device is output at the empty batch output station. The transfer between the front station, the empty batch output station and the nail pressing station is performed by the retainer transfer device. By setting a bridge device as a support device for transferring the empty batch retainer between the front station and the nail pressing station, a support function is provided during the station transfer. When preparing the nailing retainer, the empty batch retainer on the bridge device is directly output. Then, one nail pressing action can simultaneously realize the synchronous output preparation of the empty batch retainer and the nailing retainer, thereby realizing continuous processing of the deep groove ball retainer and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the station arrangement structure of the bearing cage nailing equipment provided by the utility model;

[0033] Figure 2 A structural schematic diagram of the bearing cage nailing device provided by the utility model;

[0034] Figure 3 for Figure 1 Schematic diagram of the pressure nail structure of the upper die of the middle pressure nail;

[0035] Figure 4for Figure 3 Cross-sectional view of the pressure nail structure of the upper die of the middle pressure nail;

[0036] Figure 5 A schematic diagram of the first direction structure of the bridge device in the bearing cage nailing device provided by the utility model;

[0037] Figure 6 for Figure 5 A schematic diagram of the structure of the middle bridge device in the second direction;

[0038] Figure 7 A schematic diagram of the structure of a retainer transfer device of a deep groove ball retainer nailing die provided by the utility model;

[0039] Figure 8 for Figure 7 Schematic diagram of the upper sliding frame structure of the middle retainer transfer device. DETAILED DESCRIPTION

[0040] The utility model discloses a bearing retainer nailing device, which improves the production efficiency of deep groove ball retainers.

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] like Figure 1 and Figure 2 As shown, Figure 1 A schematic diagram of the station arrangement structure of the bearing cage nailing equipment provided by the utility model; Figure 2 The present invention is a schematic structural diagram of a bearing retainer nailing device provided by the present invention.

[0043] The present embodiment provides a bearing retainer nailing equipment, which is used for the synchronous preparation of empty batch retainers 1 and nailing retainers 2, including a front station 11 for molding empty batch retainers 1 for annular substrates, an empty batch output station 104 and a nail pressing station 105 sequentially arranged at the front station 11, a bridge device 41 is arranged on the empty batch output station 104, and the bridge device 41 supports the empty batch retainer 1 for station transfer when the nail pressing station 105 is loading materials; and when the nail pressing station 105 prepares the nailing retainer 2, the empty batch retainer 1 that is continuously fed in is output; and also includes a retainer transfer device for transferring materials between the front station 11, the empty batch output station 104 and the nail pressing station 105.

[0044] The front station 11 performs stamping and punching on the annular substrate for preparing the retainer to form an empty batch retainer 1. In order to realize the installation of rivets on the empty batch retainer 1, the rivets are installed into the rivet holes of the empty batch retainer 1 by the nail pressing station 105. The nail pressing station 105 and the empty batch output station 104 are simultaneously arranged after the front station 11. The empty batch output station 104 is provided with a bridge device 41. When the nail pressing station 105 is loaded, the bridge device 41 provides support for the transfer of the empty batch retainer 1 between different stations, and keeps the empty batch retainer 1 at the same support height between different stations. After the empty batch retainer 1 enters the nail pressing station 105, the empty batch retainer 1 on the front station 11 can repeatedly enter the bridge device 41.

[0045] During mold closing, the nail pressing station 105 performs nailing action on the empty batch retainer 1 to prepare the nailing retainer 2, and the empty batch retainer 1 on the bridge device 41 is output at the empty batch output station 104, and the transfer between the front station 11, the empty batch output station 104 and the nail pressing station 105 is performed by the retainer transfer device. By setting the bridge device 41 as a support device for the transfer of the empty batch retainer 1 between the front station 11 and the nail pressing station 105, a support function is provided during the station transfer, and the empty batch retainer 1 on the bridge device 41 is directly output when preparing the nailing retainer 2, then one nail pressing action can simultaneously realize the synchronous output preparation of the empty batch retainer 1 and the nailing retainer 2, realize the continuous processing of the deep groove ball retainer, and improve the processing efficiency.

[0046] The deep groove ball retainer is used to hold the rolling element in the deep groove ball bearing and seal it between the inner and outer rings of the bearing. Before the retainer is assembled, the blank retainer 1 and the nail retainer 2 are two independent components. The blank retainer 1 and the nail retainer 2 have the same structure. After the rivets are pre-installed in the rivet holes of the blank retainer 1, the nail retainer 2 is obtained. During the preparation process, the blank retainer 1 and the nail retainer 2 are processed by the front station 11 to obtain a ball pocket structure for holding the rolling element.

[0047] The front station 11 performs preliminary processing on the annular substrate, including stamping the annular substrate and punching rivet holes to prepare the empty batch retainer 1. Since the deep groove ball retainer is a retainer structure composed of an empty batch retainer 1 and a nail-piercing retainer 2 assembled in pairs, a set of molds is used to prepare the retainer, and it is necessary to overcome how to simultaneously output the nail-piercing retainer 2 with nails and the empty batch retainer 1 without nails, and complete the independent collection of the two retainers at the same time.

[0048] Based on the structural characteristics of the deep groove ball retainer, and in order to achieve the simultaneous preparation and output of two different structures of retainers, an empty batch output station 104 and a nail pressing station 105 are set up after the front station 11. When the retainer is transferred at different stations, different processing molds are required for sequential processing, and the retainer transfer device is used for sequential transfer. By setting up an independent nail pressing station 105 and an empty batch output station 104, the empty batch retainer 1 and the nailing retainer 2 can be transported at the same time on the two stations, and then the pairs of retainers can be transported synchronously.

[0049] In a specific embodiment of the present case, the nail pressing station 105 includes a nail pressing lower die 51 of an empty batch holder 1 for carrying the material, and a nail pressing upper die 59 cooperating with the nail pressing lower die 51;

[0050] The nail pressing upper die 59 is provided with a plurality of nail feeding tubes 55 for conveying rivets, and the nail outlets of the plurality of nail feeding tubes 55 are arranged corresponding to the rivet holes on the blank batch retainer;

[0051] The upper nail pressing die 59 is also provided with a punch 56 for pressing the rivet into the rivet hole after the nail insertion tube 55 has completed the nail insertion.

[0052] The lower nail pressing die 51 is also provided with a plurality of nail detection pins 52 corresponding to the rivet holes respectively. The lower nail pressing die 51 is also provided with a nail shortage monitoring device which cooperates with the plurality of nail detection pins 52 respectively and is triggered after the rivet is pressed against the nail detection pins 52 .

[0053] Specifically, the nail pressing upper die 59 includes a nail punching fixing plate 54 and a nail feeding fixing plate 53. A guide column 57 connected to the nail feeding fixing plate 53 extends from the nail punching fixing plate 54. The nail feeding fixing plate 53 is slidably arranged on the guide column 57. The guide column 57 is provided with an elastic reset structure for pushing the nail feeding fixing plate 53 toward the nail pressing lower die 51.

[0054] The nail feeding tube 55 includes a main nail feeding channel 551 arranged obliquely to the punch 56, and a pressure nail channel 552 opened on the nail feeding fixing plate 53 and arranged coaxially with the punch 56. A tapered hole correction portion 553 is reserved between the main nail feeding channel 551 and the pressure nail channel 552 to correct the rivet to a vertical arrangement.

[0055] A circular recess is provided in the middle of the nail insertion fixing plate 53 , in which a rivet blocking structure 58 filled with a flexible medium is arranged. The rivet blocking structure 58 is provided with a microporous channel 581 corresponding to the nail pressing channel 552 and smaller than the inner diameter of the nail pressing channel 552 .

[0056] Preferably, the elastic reset structure is a reset spring sleeved on the guide post; the rivet blocking structure 58 is a blocking rubber pad fixed in the circular groove.

[0057] like Figure 3 and Figure 4As shown, Figure 3 for Figure 1 Schematic diagram of the pressure nail structure of the upper die of the middle pressure nail; Figure 4 for Figure 3 Cross-sectional view of the pressure nail structure of the upper die of the medium pressure nail.

[0058] The upper die 59 and the lower die 51 cooperate with each other to place rivets on the empty batch holder 1 on the lower die 51 and punch the placed rivets into the rivet holes, that is, the two steps of nail feeding and nail punching need to be performed simultaneously.

[0059] In order to realize the synchronous feeding and punching of nails, a nail feed tube 55 for conveying rivets 71 is provided on the nail pressing upper die 59. In this embodiment, the number of nail feed tubes 55 is set to be consistent with the number of rivet holes, and a nail feed fixing plate 53 is provided on the nail pressing upper die 59, and multiple nail feed tubes 55 are arranged circumferentially around the nail feed fixing plate 53.

[0060] At the same time, the punch 56 needs to punch the rivet 71 into the rivet hole in the vertical direction, and it needs to be arranged vertically on the pin upper die 59. A punch fixing plate 54 is provided on the pin upper die 59 to fix the punch 56. The punch fixing plate 54 is arranged against the pin die fixing plate and the pin die upper pad 60 of the pin upper die 59. The punch 56 is fixedly installed on the punch fixing plate 54, so as to ensure that the punch 56 is punched in the vertical direction during the punching process and to provide stable support.

[0061] The nail feeding fixing plate 53 is used to install the nail feeding tube 55. Considering the fixed length of the punch 56, the rivet 71 needs to be pre-placed into the stamping end of the punch 56, and the punch 56 has a fixed length. Based on this, the nail feeding fixing plate 53 is hoisted onto the punch rivet fixing plate 54 through the guide column 57. The nail feeding fixing plate 53 can slide up and down along the guide column 57. A reset spring is installed on the guide column 57. The nail feeding fixing plate 53 is pushed toward the stamping end of the punch 56 and reset by utilizing its own weight and the elastic thrust of the reset spring.

[0062] The nail feed tube 55 delivers the rivet 71 to the punching end of the punch 56. To avoid interference, the nail feed tube 55 is arranged tilted to the punch 56. The nail feed tube 55 includes a main nail feed channel 551 and a nail pressing channel 552. The main nail feed channel 551 extends to the punching end close to the punch 56, and the nail pressing channel 552 is arranged vertically. The nail pressing channel 552 also serves as a punching channel for the punch 56.

[0063] The transition connection position between the main nail feeding channel 551 and the pressure nail channel 552 is set as the tapered hole correction part 553. The rivet 71 is obliquely fed into the tapered hole correction part 553 from the main nail feeding channel 551, and the rivet 71 continues to slide downward into the pressure nail channel 552. The pressure nail channel 552 is a vertical channel. During the falling process of the rivet 71, the oblique direction changes to the vertical direction. The head of the rivet 71 is automatically adjusted to the vertical position in the tapered hole correction part 553. The rivet 71 in the pressure nail channel 552 is The rivets in the main nail feeding channel 551 are blocked, the nail pressing upper die 59 is closed once, the nail feeding fixing plate 53 and the nail pressing lower die 51 are abutted against each other and float upward along the guide column 57. At this time, the rivets 71 in the nail pressing channel 552 are punched by the punch 56, and extend downward into the rivet hole of the empty batch retainer to complete a punching. The nail pressing ends and the die is opened. The nail feeding fixing plate 53 is pushed downward to the nail feeding position by its own weight and the reset spring, and the rivets in the main nail feeding channel 551 continue to be fed into the nail pressing channel 552.

[0064] By means of the up and down floating structure of the nail feeding fixing plate 53 and the way in which the nail feeding channel and the punching channel are combined at the end to form a nail pressing channel 552, the nail feeding and the nail punching are integrated into a set of nail pressing molds.

[0065] Furthermore, the rivet 71 enters the pressure nail channel 552. In order to avoid leakage from the bottom of the pressure nail channel 552, causing a nail shortage problem or a stamping risk, a circular groove is opened at the lower end of the nail fixing plate 53, and a rubber blocking rubber pad is filled in the groove. The blocking rubber pad is provided with a microporous channel 581 corresponding to each pressure nail channel. The inner diameter of the microporous channel 581 is smaller than the inner diameter of the pressure nail channel 552, and further needs to be smaller than the minimum inner diameter of the rivet 71. Then, the rivet 71 falls into the pressure nail channel 552, and its lower end abuts against the top of the microporous channel 581 of the blocking rubber pad. During the punching process, the blocking rubber pad is pressed in the mold closing direction, and the punch 56 punches the rivet 71 through the microporous channel 581. The vertical position is corrected by the squeezing of the inner wall of the microporous channel 581 to ensure that it falls accurately into the rivet hole. A vibration-damping hole 582 corresponding to the position of each ball pocket of the empty batch retainer 1 is arranged on the side of the blocking rubber pad opposite to the nail lower mold 51. During the mold closing process, the nail feeding fixing plate 53 is abutted against the nail lower mold 51, and the rubber pad limits each ball pocket of the empty batch retainer 1 in the vibration-damping hole 582 in the thickness direction. On the one hand, vibration is reduced to avoid hard contact affecting the surface quality of the ball pocket. On the other hand, the position of the empty batch retainer 1 is positioned by utilizing the corresponding position of the ball pocket and the vibration-damping hole 582, ensuring that each rivet can be accurately delivered into the rivet hole through the microporous channel 581, thereby improving the safety of the rivet.

[0066] In order to avoid the problem of missing nails due to the failure of rivet feeding, a nail inspection pin 52 arranged along the vertical direction is provided inside the lower nail pressing die 51 corresponding to each rivet punching position. The nail inspection pin 52 extends upward close to the rivet hole position. After the rivet is punched, the inserted end of the rivet enters the corresponding hole position on the lower nail pressing die 51. The inserted end of the rivet is abutted against the inserted end of the nail inspection pin 52, thereby triggering a nail missing monitoring device at the root of the nail inspection pin 52. The nail missing monitoring device triggers and sends a contact signal, indicating that the rivet is punched in place. If the nail inspection pin is not triggered after the punching is completed, it means that there is a nail missing at that position, and the machine is stopped for quality inspection to further improve safety.

[0067] The front station 11 includes a forming die 101 arranged in sequence to perform circular bending on the annular substrate;

[0068] A shaping mold 102 for shaping the bent annular substrate into a spherical ball pocket; and

[0069] Punching rivet holes in the shaped annular substrate to prepare a punching die 103 for a blank batch retainer;

[0070] A nail-piercing retainer conveyor belt 106 for outputting the nail-piercing retainer 2 is arranged at the rear end of the nail-pressing station 105 ; the conveying direction of the empty batch conveyor belt 45 is arranged crosswise with the conveying direction of the nail-piercing retainer conveyor belt 106 .

[0071] It also includes an upper tooling plate 12 and a lower tooling plate 13 for fixing the stamping matching die, and a frame supporting the upper tooling plate 12 and the lower tooling plate 13, the frame including a lower die base supporting the lower tooling plate 13, and an upper die base for installing the upper tooling plate 12;

[0072] The frame is also provided with a continuous nail feeding device for conveying rivets, which is connected to the nail feeding pipe 55 of the nail pressing upper die 59. The frame provides fixed support for the equipment, and realizes fixed support for the lower tooling plate 13 and the lower die seat, and the upper tooling plate 12 is fixedly connected to the upper die seat, and realizes the upper and lower sliding support of the upper tooling plate 12 on the frame.

[0073] A continuous nail feeding device is arranged on the frame, including a nail feeding direction adjusting device for adjusting the nail feeding direction of the rivets, a conveying track for continuously conveying the rivets, a nailing cylinder for carrying the rivets and other components.

[0074] The front station 11 is used to form the basic structure of the retainer on the annular substrate and punch holes to form rivet holes. The annular substrate is first formed once by a forming mold 101, which includes an upper forming mold 14 and a lower forming mold 15. The upper forming mold 14 is provided with an upper forming mold tooth, and the lower forming mold 15 is provided with a lower forming mold tooth. The two are extruded and matched to preliminarily process the annular substrate into a bending structure corresponding to different ball pocket positions.

[0075] The shaping mold 102 needs to form the bending structure into a corresponding rolling body, such as a spherical ball pocket of a spherical rolling body, or a circular arc surface ball pocket of a basic cylindrical shape. The shaping mold 102 includes a shaping upper mold 21 and a shaping lower mold 22. The shaping lower mold 22 has a shaping core 23, and a shaping ball 24 is placed on the shaping core 23. The two molds are combined to secondary mold the bending structure into a spherical or circular arc surface structure by the shaping ball 24.

[0076] The punching die 103 includes a punching upper die 31 and a punching lower die 32. The punching upper die 31 is provided with a punching needle 33, and the punching lower die 32 is provided with a punching hole. The two are matched to punch rivet holes on the ball pocket connection part of the cage after secondary molding, and the preparation of the blank batch cage 1 is completed. It also has a material collection channel connected to the material collection box 34, and the material punched out after punching the rivet hole is sent to the material collection box 34 through the material channel.

[0077] In order to ensure the structural stability of the forming mold 101, the shaping mold 102 and the punching mold 103 when installed on the upper tooling plate 12 and the lower tooling plate 13, each mold is provided with an upper mold plate 16 and an upper mold base 17, as well as a lower mold plate 18 and a lower mold base 19. The mold plate is used to connect with the tooling plate, and the mold base is used to connect with the mold, thereby improving the overall installation structural stability of the mold.

[0078] The empty batch output station 104 is arranged between the punching die 103 and the nail pressing station 105. After the punching is completed, the preparation of the empty batch retainer 1 is completed, and the retainer transfer device first sends it to the empty batch output station 104 according to the production rhythm. When the nail pressing lower die 51 is in the loading state, that is, the nail pressing lower die 51 has completed the nailing of the empty batch retainer in the previous mold closing rhythm, and the empty batch retainer to be nailed needs to be sent in. At this time, the bridge device 41 needs to realize the bridge function of conveying the empty batch retainer 1.

[0079] like Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the first direction structure of the bridge device in the bearing cage nailing device provided by the utility model; Figure 6 for Figure 5 Schematic diagram of the second direction structure of the middle bridge device.

[0080] In the embodiment, a bridge device 41 and an empty batch conveyor belt 45 are arranged up and down on the empty batch output station 104. The bridge device 41 includes a first bracket 42 and a second bracket 43 arranged oppositely. A first flap 44 is arranged on the top of the first bracket 42, and a second flap 47 is arranged on the top of the second bracket 43.

[0081] The invention also includes a driving device for driving the first flap 44 and the second flap 47 to open or close.

[0082] The empty batch conveyor belt 45 is located below the bridge device 41 . The bridge device 41 includes a first bracket 42 and a second bracket 44 mounted on the empty batch conveyor belt 45 . The first bracket 42 and the second bracket 44 are arranged opposite to each other and distributed on both sides of the lower tooling plate 13 in the width direction.

[0083] In this embodiment, the front station 11, the empty batch conveying station 104 and the nail pressing station 105 are sequentially arranged in the length direction of the lower tooling plate 13. After preparing the nail holding frame 2, the nail holding frame conveyor belt 106 needs to be arranged at the end of the length direction of the lower tooling plate 13 for output. The empty batch conveyor belt 45 is arranged along the width direction of the lower tooling plate 13, and the conveying ends of the nail holding frame conveyor belt 106 and the empty batch conveyor belt 45 can be provided with independent material receiving devices to independently collect materials.

[0084] For ease of arrangement, the first bracket 42 and the second bracket 44 are arranged in pairs in the width direction of the lower tooling plate 13, and the first driving device 46 and the second driving device 49 for pulling the first flap 44 and the second flap 47 to open and close can be conveniently arranged on both sides of the width direction of the lower tooling plate 13. Preferably, the first driving device 46 and the second driving device 49 are the first driving cylinder and the second driving cylinder arranged on the lower tooling plate 13, and the extended ends of the cylinders are connected to the flaps to realize the opening and closing functions of the flaps.

[0085] During loading, the first flap 42 and the second flap 44 are driven to close by the driving device to form a supporting platform for supporting the empty batch holder 1. At this time, the nail-piercing holder 2 on the nail-pressing station 105 is transported to the nail-piercing holder conveyor belt 106, and the empty batch holder 1 on the front station 11 advances one station and is placed on the supporting platform; entering the next beat, the mold is closed once, the front station 11 prepares a new empty batch holder, the empty batch holder continues to advance one station, and the empty batch holder on the supporting platform is sent into the nail-pressing lower mold 51, and the first flap 44 and the second flap 47 are driven to open by the driving device. The empty batch holder sent in by the front station 11 will fall into the empty batch conveyor belt 45 through the channel formed by opening the first flap 44 and the second flap 47, and the mold is closed once to prepare the nail-piercing holder 2; repeating the above-mentioned loading and nail-piercing preparation processes, the paired preparation and output of the empty batch holder and the nail-piercing holder are realized.

[0086] The empty batch output station 104 and the nail pressing station 105 adopt an intermittent working mode during the preparation and transportation process of the empty batch retainer 1 and the nail piercing retainer 2, so that in each mold closing cycle, only one station places the empty batch retainer and re-feeds in the next cycle, and reciprocates to realize the paired output of the nail piercing retainer and the empty batch retainer.

[0087] like Figure 7 and Figure 8 As shown, Figure 7A schematic diagram of the structure of a retainer transfer device of a deep groove ball retainer nailing die provided by the utility model; Figure 8 for Figure 7 Schematic diagram of the upper sliding frame structure of the middle retainer transfer device.

[0088] In a specific embodiment of the present case, the retainer transfer device includes a first transfer arm and a second transfer arm respectively arranged on both sides of the front station 11, the empty batch output station 104 and the nail pressing station 105.

[0089] A forming die 101, a shaping die 102 and a punching die 103 are arranged on the front station 11, an empty batch output station 104 is provided with an empty batch retainer conveyor belt 45 and a bridge device 41, a nail pressing station 105 is provided with a nail pressing die, and its rear end corresponds to a nail piercing retainer conveyor belt 106, and the six stations are sequentially arranged on the lower tooling plate 13. The retainer transfer device 7 needs to transfer the retainer on the front mold / station to the rear mold / station at the same time during each mold closing process. The retainer transfer device 7 is provided with a first transfer arm 71 and a second transfer arm 72, which are distributed on both sides of the lower tooling plate 13. When the mold is opened, they are extended at the same time to transfer the materials on each station.

[0090] The first transfer arm 71 and the second transfer arm 72 extend oppositely to each other with clamping claws 73 corresponding to different working positions for clamping and releasing the empty batch retainer or the nail retainer.

[0091] In order to facilitate the same travel distance of the clamping claw 73 between different stations, the same spacing is set between different stations. Then, the first transfer arm 71 and the second transfer arm 72 can realize the transfer of materials once by reciprocating one station along the length direction. Multiple clamping claws 73 are set corresponding to different stations, and each clamping claw 73 is provided with a clamping structure corresponding to its clamping station to adapt to the product characteristics of different stations for clamping. For the empty batch retainer and the nail retainer, since the structures of the two have been formed, the clamping claw 73 can be set to cooperate with the ball pocket for clamping. Then, when switching between different stations, the retainer is in the same position to ensure the consistency of the placement and clamping position of the rivet.

[0092] The first transfer arm 71 and the second transfer arm 72 are respectively provided with a first sliding frame 74 and a second sliding frame 75 at both ends in the length direction. The first sliding frame 74 and the second sliding frame 75 both have a transverse guiding device for guiding the first transfer arm 71 and the second transfer arm 72 to move relatively close to and away from each other, and a longitudinal guiding device for guiding the first transfer arm 71 and the second transfer arm along the extension direction of the two.

[0093] In combination with the opening and closing action of the mold and the need for sequential transfer of materials in the direction of the workstation layout, the first transfer arm 71 and the second transfer arm 72 need to simultaneously perform reciprocating position switching actions, as well as clamping and releasing actions of the retaining frame that clamps the material along the width direction of the mold. A first sliding frame 74 and a second sliding frame 75 are set to synchronously perform reciprocating sliding in the width and length directions of the two parallel first transfer arms 71 and the second transfer arms 72.

[0094] The first sliding frame 74 and the second sliding frame 75 have the same structure. Taking the first sliding frame 74 as an example, a transverse guide device 741 and a longitudinal guide device 743 are provided. The transverse guide device 741 is two guide rails arranged transversely and can be fixed to the frame. The longitudinal guide device 743 is two guide rails fixed to the first transfer arm 71 and the second transfer arm 72 respectively. A guide rail connecting plate 742 is provided between the transverse guide device 741 and the longitudinal guide device 743. Through the driving device, the first transfer arm 71 and the second transfer arm 72 can synchronously perform transverse and longitudinal opening and closing actions to meet the station switching function of the retaining frame.

[0095] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing cage nailing device, used for the synchronous preparation of blank batch cages and nailing cages, characterized in that: It includes a front station for molding the blank batch holder for the annular substrate, a blank batch output station and a nail pressing station sequentially arranged at the front station, A bridge device is provided on the empty batch output station, and the bridge device supports the empty batch holder to transfer the station when the nail pressing station is loading; and When the nail-piercing retainer is prepared at the nail-pressing station, the empty batch retainer that is continuously fed in is output; It also includes a retainer transfer device for transferring materials between the front station, the empty batch output station and the nail pressing station.

2. The bearing retainer nailing device according to claim 1, characterized in that: The nail pressing station comprises a nail pressing lower die of the empty batch holder for carrying the material, and a nail pressing upper die cooperating with the nail pressing lower die; The nail pressing upper die is provided with a plurality of nail feeding tubes for conveying rivets, and the nail outlets of the plurality of nail feeding tubes are arranged corresponding to the rivet holes on the blank batch retaining frame; The upper die for pressing the rivet is also provided with a punch for pressing the rivet into the rivet hole after the rivet is inserted into the rivet tube.

3. The bearing retainer nailing device according to claim 2, characterized in that: The nail pressing lower die is also provided with a plurality of nail detection pins corresponding to the rivet holes respectively, and the nail pressing lower die is also provided with a nail shortage monitoring device which cooperates with the plurality of nail detection pins respectively and is triggered after the rivet is pressed against the nail detection pin.

4. The bearing retainer nailing device according to claim 2, characterized in that: The nail pressing upper die includes a punching nail fixing plate and a nail feeding fixing plate. A guide column connected to the nail feeding fixing plate extends from the punching nail fixing plate. The nail feeding fixing plate is slidably arranged on the guide column. The guide column is provided with an elastic reset structure for pushing the nail feeding fixing plate toward the nail pressing lower die.

5. The bearing retainer nailing device according to claim 4, characterized in that: The nail feeding tube includes a main nail feeding channel inclined to the punching nail arrangement, and a pressure nail channel opened on the nail feeding fixing plate and arranged coaxially with the punching nail. A tapered hole correction portion is reserved between the main nail feeding channel and the pressure nail channel for correcting the rivet to a vertical arrangement.

6. The bearing retainer nailing device according to claim 5, characterized in that: A circular groove is provided in the middle of the nail insertion fixing plate, a rivet blocking structure filled with a flexible medium is arranged in the circular groove, and a microporous channel corresponding to the nail pressing channel and smaller than the inner diameter of the nail pressing channel is provided on the rivet blocking structure.

7. The bearing retainer nailing device according to claim 6, characterized in that: The elastic reset structure is a reset spring sleeved on the guide column; the rivet blocking structure is a blocking rubber pad fixed in the circular sink groove.

8. The bearing retainer nailing device according to any one of claims 1 to 7, characterized in that: The empty batch output station is provided with a bridge device and an empty batch conveyor belt arranged up and down, the bridge device comprises a first bracket and a second bracket arranged oppositely, a first flap is provided on the top of the first bracket, and a second flap is provided on the top of the second bracket; It also includes a driving device for driving the first flap and the second flap to open or close.

9. The bearing retainer nailing device according to claim 8, characterized in that: The front station includes a forming die arranged in sequence to perform circular bending on the annular substrate; A shaping mold is used to shape the bent annular substrate into a spherical ball pocket; and Punching rivet holes into the shaped annular substrate to prepare a punching die for the blank batch retainer; A nail-piercing retainer conveyor belt for outputting the nail-piercing retainer is arranged at the rear end of the nail-pressing station; the conveying direction of the empty batch conveyor belt is arranged crosswise with the conveying direction of the nail-piercing retainer conveyor belt.

10. The bearing retainer nailing device according to claim 9, characterized in that: The retainer transfer device comprises a first transfer arm and a second transfer arm respectively arranged on both sides of the front station, the empty batch output station and the nail pressing station. The first transfer arm and the second transfer arm are provided with corresponding different working positions extending relatively from each other, and are used for clamping and releasing the clamping claws of the empty batch holder or the nail holder; A first sliding frame and a second sliding frame are respectively provided at both ends of the length direction of the first transfer arm and the second transfer arm. The first sliding frame and the second sliding frame both have a transverse guiding device for guiding the first transfer arm and the second transfer arm to move closer and farther away from each other, and a longitudinal guiding device for guiding the first transfer arm and the second transfer arm along their extension directions.

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