Automatic assembling device for shaft clamp spring

Abstract

The utility model discloses an automatic assembling device for a shaft clamp spring. The automatic assembling device comprises a workbench, a material taking mechanism and a pressing mechanism. The workbench is provided with an assembling station, and a product needing to be assembled with a snap spring is positioned on the assembling station; the material taking mechanism is arranged above the assembly station, and a grabbing end is arranged on the material taking mechanism; according to the automatic assembling machine for the snap spring, the pressing sleeve and the core shaft are matched to press the shaft sleeve downwards, so that automatic assembling of the snap spring is achieved, specifically, the core shaft descends to abut against the end face of a product, and the expansion shaft extrudes the snap spring and enables the snap spring to be elastically expanded so as to be positioned on the peripheral side of the expansion shaft; afterwards, the pressing sleeve descends relative to the mandrel and pushes the snap spring to the peripheral side of the product after abutting against the upper surface of the snap spring, different from guiding operation of a guiding face in the prior art, automatic assembling of the snap spring is achieved through cooperation of the pressing sleeve and the mandrel, the guiding face is not needed, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shaft circlip, specifically relates to an automatic assembling device of shaft circlip. BACKGROUND

[0002] In the machining and production process of shaft products, circlip is generally pressed, for example, the rotor in the shaft product, typical rotor has turbine rotor, motor rotor, rotor of various pumps and rotor of turbine compressor etc.Usually, the structure of the rotor includes the iron core part of the middle section and the rotating shaft at both ends of the iron core part, and the circlip needs to be installed on the rotating shaft of the rotor before the rotor is assembled with the stator. Circlip belongs to a kind of fastener, which is installed in the shaft slot of machine and equipment, and plays the role of preventing the axial movement of parts on the shaft.

[0003] In the process of installing circlip of shaft products, it is mostly completed by manual work before, which needs to consume a lot of labor resources, and the production efficiency is not high, so currently, assembling equipment is used for rapid assembly, which is represented by the patent document with application number CN202411971700.5, which discloses a kind of shaft product automatic circlip pressing equipment, the overall structure of the circlip pressing equipment is simple, and the design is reasonable, wherein the upper circlip pressing mechanism, the lower circlip pressing mechanism, the circlip positioning seat and the circlip pushing mechanism are arranged on the vertical plate, the lower circlip pressing mechanism is located below the upper circlip pressing mechanism, the circlip positioning seat is located between the upper circlip pressing mechanism and the circlip pushing mechanism, the circlip pushing mechanism pushes the circlip on the circlip positioning seat to the upper circlip pressing mechanism, the upper circlip pressing mechanism cooperates with the lower circlip pressing mechanism to automatically press the circlip on the shaft product, by setting the upper circlip pressing mechanism, the circlip is automatically transported to the circlip positioning seat, and then pushed to the upper circlip pressing mechanism by the circlip pushing mechanism, to realize reciprocating circulation, automatic feeding, pushing and circlip pressing, by setting the PLC controller on the workbench, the PLC controller is connected with the upper circlip pressing mechanism, the lower circlip pressing mechanism and the circlip pushing mechanism, and controls the work of the upper circlip pressing mechanism, the lower circlip pressing mechanism and the circlip pushing mechanism, to realize automatic circlip pressing production in the true sense, thereby replacing manual assembly, improving production efficiency, saving cost for enterprises, and the consistency of circlip pressing is good, the yield of products is high, and it is worth popularizing and applying.

[0004] The above patent document discloses a device capable of realizing automatic circlip pressing, but the device has certain limitations in specific use, as follows:

[0005] The product in the above patent document is solid, which can set a larger conical guide surface to perform circlip expansion fixing operation, but if the product is hollow, the guide surface set may not meet the requirements, that is, the length of the guide surface is not enough, at this time, the circlip is difficult to expand and fix.

[0006] Therefore, how to solve the above-mentioned deficiencies existing in the prior art has become a subject to be studied and solved by the utility model. Utility model content

[0007] The utility model provides a kind of automatic assembly device of shaft clamp spring, to solve the technical problem presented in the above background art.

[0008] To achieve the above object, the utility model adopts the technical scheme of: an automatic assembly device of shaft clamp spring, including workbench, material taking mechanism and pressing mechanism;The workbench has an assembly station, the product required to be assembled clamp spring is positioned on the assembly station;The material taking mechanism is arranged above the assembly station, the material taking mechanism has a grabbing end, and the grabbing end is configured to grab clamp spring to the set position;The pressing mechanism is arranged above the assembly station, and the pressing mechanism has a pressing head extending downward, the pressing head is composed of mandrel and pressing sleeve sleeved outside the mandrel, and the mandrel and the pressing sleeve are configured to be capable of relative movement along the axial direction of the mandrel;The outer ring of the mandrel has an expansion shaft for expanding clamp spring;The lower end face of the pressing sleeve serves as a downward pressing surface for clamp spring;The mandrel and the pressing sleeve are acted on by pressing drive mechanism, which drives the mandrel and the pressing sleeve to move relatively along the axial direction of the mandrel, so that the mandrel and the pressing sleeve have an expansion state and a pressing state;In the expansion state, the expansion shaft is exposed downward from the downward pressing surface of the pressing sleeve;In the pressing state, the downward pressing surface of the pressing sleeve moves downward beyond the expansion shaft;In use, the pressing head of the pressing mechanism is pressed downward as a whole, the mandrel and the expansion shaft first reach the expansion state and make the clamp spring elastically expand, and the mandrel extends into the clamp spring;Then switch to the pressing state, so that the downward pressing surface of the pressing sleeve presses the clamp spring and presses it downward, so that it is sleeved to the circumferential side of the product.

[0009] In the above scheme, the relevant contents are explained as follows:

[0010] In the above scheme, the pressing sleeve and the mandrel can move relatively, and the cooperation of the two can play a guiding role.

[0011] In the above scheme, the product circumferential side will be provided with a clamp spring groove, and the pressing sleeve is mainly used to push the product to the clamp spring groove.

[0012] In the above scheme, the operation of pressing the shaft sleeve can be carried out through the cooperation of the pressing sleeve and the mandrel, so as to realize the automatic assembly of the clamp spring, specifically, the mandrel is lowered to abut against the end face of the product, the expansion shaft extrudes the clamp spring and makes the clamp spring elastically expand to be positioned on the circumferential side of the expansion shaft;Then, the pressing sleeve is lowered relative to the mandrel, and after abutting against the upper surface of the clamp spring, the clamp spring is pushed to the circumferential side of the product, which is different from the guiding operation of the guiding surface in the prior art, and the application realizes the automatic assembly of the clamp spring through the cooperation of the pressing sleeve and the mandrel, without the help of the guiding surface, and has wide application range.

[0013] It should be noted that the inner diameter of the pressing sleeve needs to be smaller than the outer diameter of the snap spring. The product is a hollow shaft.

[0014] The relative movement state of the mandrel and the pressing sleeve needs to meet that the mandrel enters the pressing sleeve, and the pressing sleeve pushes the snap spring on the peripheral side of the expanded shaft to the peripheral side of the product.

[0015] Further technical solutions, the automatic assembly device further comprises a material storage mechanism having a discharge end and a temporary storage mechanism;

[0016] The material storage mechanism is arranged beside the assembly station, and the temporary storage mechanism is arranged between the assembly station and the material storage mechanism and on the workbench. The temporary storage mechanism has a storage column thereon, and the storage column has a free end that is connected to the discharge end. When the material storage mechanism discharges the snap spring from the discharge end, the snap spring is introduced along the axial direction of the storage column through the free end and is radially positioned and fitted on the outer peripheral surface of the storage column.

[0017] When the grabbing end grabs the snap spring, the snap spring is axially guided out from the peripheral side of the storage column along the free end.

[0018] In the above scheme, the material storage mechanism is a vibrating disc.

[0019] In the above scheme, the assembly station and the temporary storage mechanism need to be arranged in the same plane and along a straight line, so that the material taking mechanism only needs to take and discharge materials along the straight line.

[0020] In the above scheme, the storage column can be vertically placed or inclinedly arranged. The inclined arrangement is because it is convenient for the snap spring to slide to the bottom of the storage column and no shaking phenomenon occurs during the sliding process.

[0021] In the above scheme, the material taking mechanism can be a mechanical hand or a vacuum suction disc mechanism.

[0022] In the above scheme, the automatic sorting and discharging can be realized through the arrangement of the storage column, so as to realize the automatic sorting of the snap spring. Specifically, when the material storage mechanism discharges the snap spring from the discharge end, the snap spring is introduced along the axial direction of the storage column through the free end and is radially positioned and fitted on the outer peripheral surface of the storage column. At this time, the storage column plays a role of temporary storage. Then, the grabbing end transfers the snap spring positioned on the storage column to the product directly above, that is, from the free end to the free end. This is different from the up-in and down-out in the prior art, which reduces the risk of clamping and simultaneously realizes the automatic sorting and uninterrupted feeding of the snap spring.

[0023] Further technical solutions, the pressing drive mechanism is composed of a first lifting module and a second lifting module, the first lifting module acts on the pressing sleeve, and the second lifting module acts on the mandrel.

[0024] The first lifting module and the second lifting module can be air cylinders, telescopic rods or screw rod sleeve mechanisms.

[0025] Further, another embodiment is provided for the mandrel and the pressing sleeve, two springs are arranged above the mandrel and the pressing sleeve respectively, and the length of the spring arranged above the mandrel is greater than that of the other spring

[0026] In the further technical solution, the first lifting module is positioned on a support arranged on the workbench, a fixing frame is arranged on the working end of the first lifting module, and the pressing sleeve is positioned on the fixing frame and corresponds to the assembly station.

[0027] The second lifting module is arranged on the fixing frame, and the working end of the second lifting module is positioned and connected with the upper end of the mandrel.

[0028] The lower end of the mandrel can be a frustum or a sphere, as long as it has a guide surface.

[0029] The clamping spring needs to be expanded during assembly to increase its size for easy assembly. To achieve this assembly operation, when the clamping spring slides along the lower end of the mandrel, the clamping spring is elastically deformed by the extrusion of the expansion shaft and is sleeved on the circumferential side of the expansion shaft. That is, the clamping spring first rises along the guide surface of the lower end of the mandrel, gradually contacts the expansion shaft, and then rises towards the expansion shaft. When rising, it is expanded and elastically deformed and is sleeved on the circumferential side of the expansion shaft.

[0030] In the further technical solution, a guide-in slope is arranged on the bottom end of the mandrel.

[0031] The guide-in slope is the guide surface mentioned above, which is mainly used to guide the clamping spring to the mandrel for positioning and then to the circumferential side of the expansion shaft for fixing.

[0032] In the further technical solution, a pre-assembly station is arranged between the temporary storage mechanism and the assembly station. In use, the clamping spring H is carried from the temporary storage mechanism to the pre-assembly station, and the clamping spring H is positioned on the expansion shaft at the pre-assembly station.

[0033] With the above design, it is relatively easy to assemble the clamping spring H to the circumferential side of the expansion shaft. If there is no pre-assembly station, the clamping spring H is directly transferred to the product directly above. At this time, the surface directly above the product is in abutment with the lower surface of the clamping spring H, and the surface above the product is a certain height from the bottom. Then, the mandrel is inserted into the product until it moves to the expansion shaft. At this time, the expansion shaft is inserted into the product to expand the clamping spring H. During this process, if the clamping spring H shakes, it is easy to slide off the product and become inclined.

[0034] With the arrangement of the pre-assembly station, the clamping spring H will not be in an inclined state.

[0035] Further technical solutions, the workbench is provided with a transfer module, the transfer module includes a track, the track is arranged along the length direction of the workbench, and the assembly station is formed on the track;

[0036] The transfer module is configured to move the product to the assembly station or move the product in the assembly station.

[0037] In order to make the product can continuously carry on the action of loading, assembling spring and discharging, the product is placed on the upper surface of the two tracks, and the automatic operation is realized through the driving of the two tracks.

[0038] Further technical solutions, the support is provided with a carrying module, and the working end of the carrying module is connected with the first lifting module, so as to guide the fixed frame to move along the direction perpendicular to the track moving direction.

[0039] The carrying module can be a lead screw sleeve structure, the working end of the carrying module is a sleeve, the sleeve is connected with the fixed frame, so that the purpose of guiding the fixed frame to move along the direction perpendicular to the track moving direction is realized. And the lead screw sleeve structure is arranged above the assembly station and perpendicular to the track moving direction.

[0040] Further technical solutions, the material taking mechanism includes a limiting frame positioned on the fixed frame, and a suction cup is positioned on the limiting frame, and the suction cup is a grabbing end.

[0041] That is, the suction cup will move up and down with the fixed frame, so as to meet an operation, the fixed frame with the suction cup descends to the free end of the storage column, then the suction cup sucks the spring, then the transfer module guides the movement of the fixed frame, so that the suction cup with the spring is above the product, and then the suction cup is placed above the product.

[0042] Further technical solutions, the temporary storage mechanism includes an adjusting turntable, and the adjusting turntable is arranged on the workbench and located between the material storage mechanism and the assembly station.

[0043] The upper surface of the adjusting turntable is provided with a plurality of storage columns, the plurality of storage columns are evenly arranged around the axis of the adjusting turntable, and the axis of the storage column is perpendicular to the upper surface of the adjusting turntable. When the discharge end discharges the spring, the adjusting turntable is configured to rotate by a set angle to make each storage column be sleeved with the spring.

[0044] One storage column places less springs, and the descending distance of the suction cup is smaller. In order to make the spring can not be interrupted, therefore, when one storage column is full of springs, the adjusting turntable rotates by a set angle to make the next storage column full of springs, until each storage column is sleeved with the spring.

[0045] Afterwards, the material can be taken out.

[0046] Further, the upper surface of the adjusting turntable is provided with a plurality of lifting grooves which are uniformly arranged around the adjusting turntable axis, and each of the lifting grooves is arranged correspondingly to each of the storage columns.

[0047] The lower part of the adjusting turntable is provided with a lifting device, and the lifting device has a lifting end which moves up and down along the direction of the storage column axis, and the lifting end is arranged correspondingly to the lifting grooves.

[0048] When the lifting end slides up and passes through the lifting grooves, the upper surface of the lifting end is in contact with the clamping spring which is sleeved at the bottom of the storage column.

[0049] The lifting device can be an electric push rod or a piston, a cylinder or other linear driving components.

[0050] After the clamping spring at the free end of the storage column which is currently being taken out is finished, the lifting end slides up and passes through the lifting grooves, and at this time, the upper surface of the lifting end is in contact with the clamping spring which is sleeved at the bottom of the storage column. With the lifting end rising, after the previous clamping spring is taken away, the next clamping spring will be pushed to the free end.

[0051] Until the clamping spring on the storage column is taken out.

[0052] Afterwards, the lifting end is reset, the adjusting turntable is rotated by a set angle, and the suction cup performs the clamping spring taking operation on the next storage column.

[0053] Further, the lifting grooves are composed of two parallel long grooves, and the storage column is arranged between the two long grooves.

[0054] The lifting end is a lifting block, and the lifting block is U-shaped.

[0055] The lifting block is U-shaped, so that when the lifting block passes through the lifting grooves, there are two positions on the lifting block which are in contact with the clamping spring, and the clamping spring will not tilt when it is pushed out.

[0056] Further, the storage column comprises a column body and a guide block which is arranged on the side of the column body, and the guide blocks are arranged in sequence from bottom to top along the direction of the column body axis.

[0057] If the storage column is inclined, the suction cup has certain difficulty in taking out the material, so that through the design of the column body and the guide block, the clamping spring will not shake during the descending process, and the taking operation is also more convenient.

[0058] The suction cup can be pneumatic or electric.

[0059] As used herein, "first", "second", and the like, do not particularly refer to order or sequence, nor are they used to limit the present application, but are merely used to distinguish components or operations described by the same technical terms.

[0060] As used herein, "connected" or "positioned" can mean directly connected or indirectly connected through one or more components or devices, and can mean that two or more components or devices are in operative or communicative connection.

[0061] As used herein, "comprising", "including", "containing", and the like, are open-ended terms, i.e., meaning "including, but not limited to".

[0062] As used herein, the terms used herein, unless otherwise specified, generally have the usual meaning of each term used in this field, in the context of the present application and in the specific context. Some terms used to describe the present application are discussed below or elsewhere in the specification to provide additional guidance to those skilled in the art on the description of the present application.

[0063] As used herein, "front", "back", "up", "down", "left", "right", and the like, are directional terms, which in the present application are only used to illustrate the positional relationship between structures, and are not used to limit the protection scheme and the specific direction in actual implementation.

[0064] The working principle and advantages of the present application are as follows:

[0065] In the present application, the operation of pressing the sleeve and the mandrel can be used to press the sleeve downward, thereby realizing automatic assembly of the clamp spring. Specifically, the mandrel is lowered to abut against the end face of the product, the expansion shaft extrudes the clamp spring and makes the clamp spring elastically expand to be positioned on the side of the expansion shaft; then, the sleeve is lowered relative to the mandrel, and after abutting against the upper surface of the clamp spring, the clamp spring is pushed to the side of the product. Unlike the guiding operation of the guide surface in the prior art, the present application realizes automatic assembly of the clamp spring by cooperation of the sleeve and the mandrel, without the need for a guide surface, and has a wide range of applications. BRIEF DESCRIPTION OF DRAWINGS

[0066] ATTACHMENT Figure 1 The figure is a schematic diagram of the overall structure in the embodiment of the present application.

[0067] ATTACHMENT Figure 2 The figure is a schematic diagram of the overall structure in the embodiment of the present application.

[0068] ATTACHMENT Figure 3 The figure is a schematic diagram of the overall structure in the embodiment of the present application.

[0069] ATTACHMENT Figure 4 The figure is a schematic diagram of the overall structure in the embodiment of the present application. The figure is a schematic diagram of the overall structure in the embodiment of the present application.

[0070] Appendix Figure 5 This is a schematic diagram of the assembly station structure in an embodiment of the present utility model;

[0071] Appendix Figure 6 This is a schematic diagram of the support structure in an embodiment of the present utility model;

[0072] Appendix Figure 7 This is a schematic diagram of the lifting groove structure in an embodiment of the present utility model;

[0073] Appendix Figure 8 This is a schematic diagram of the material storage mechanism in an embodiment of the present utility model;

[0074] Appendix Figure 9 This is a schematic diagram of the structure of the retaining ring when it is sleeved from the expansion shaft to the periphery of the product in an embodiment of this utility model;

[0075] Appendix Figure 10 This is a schematic diagram of the storage column structure in an embodiment of the present utility model;

[0076] Appendix Figure 11 This is a schematic diagram of the fixing frame structure in an embodiment of the present utility model.

[0077] In the attached diagrams: 1. Workbench; 2. Discharge end; 3. Storage mechanism; 4. Temporary storage mechanism; 5. Picking mechanism; 6. Pressing mechanism; 7. Assembly station; 8. Product; 9. Storage column; 10. Free end; 11. Gripping end; 12. First lifting module; 13. Press sleeve; 14. Mandrel; 15. Second lifting module; 16. Bracket; 17. Fixing frame; 18. Expansion shaft; 19. Track; 20. Transport module; 21. Limiting frame; 22. Adjusting turntable; 23. Lifting groove; 24. Lifting end; 25. Long groove; 26. Column; 27. Guide block; 28. Pre-assembly station; H. Snap ring. Detailed Implementation

[0078] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0079] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0080] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0081] See appendix Figures 1-11As shown, an automatic assembling device for shaft circlip includes a workbench 1, a taking mechanism 5 and a pressing mechanism 6; the workbench 1 is provided with an assembling station 7, the assembling station 7 is positioned with a product 8 to be assembled with a circlip H; the taking mechanism 5 is arranged above the assembling station 7, the taking mechanism 5 is provided with a grabbing end 11 configured to grab the circlip H to a set position; the pressing mechanism 6 is arranged above the assembling station 7, the pressing mechanism 6 is provided with a pressing head extending downward, the pressing head is composed of a mandrel 14 and a pressing sleeve 13 sleeved outside the mandrel 14, and the mandrel 14 and the pressing sleeve 13 are configured to be relatively movable along the axial direction of the mandrel 14; the lower end of the mandrel 14 serves as an expanding shaft 18 for expanding the circlip H; the lower end surface of the pressing sleeve 13 serves as a downward pressing surface for the circlip H.

[0082] The mandrel 14 and the pressing sleeve 13 are provided with a pressing driving mechanism, which drives the mandrel 14 and the pressing sleeve 13 to be relatively movable along the axial direction of the mandrel 14, so that the mandrel 14 and the pressing sleeve 13 have an expanding action state and a pressing action state; in the expanding action state, the expanding shaft 18 of the mandrel 14 is exposed downward from the downward pressing surface of the pressing sleeve 13; in the pressing action state, the downward pressing surface of the pressing sleeve 13 moves downward beyond the expanding shaft 18 of the mandrel 14.

[0083] In use, the pressing head of the pressing mechanism 6 is pressed downward as a whole, the mandrel 14 and the pressing sleeve 13 first reach the expanding action state, the expanding shaft 18 of the mandrel 14 extends into the circlip H and elastically expands the circlip H; then the pressing action state is switched to, the downward pressing surface of the pressing sleeve 13 presses and presses downward the circlip H, so that the circlip H is sleeved to the periphery of the product 8.

[0084] In this embodiment, the storage mechanism 3 is a vibrating disc.

[0085] In this embodiment, the assembling station 7 and the temporary storage mechanism 4 need to be arranged in the same plane and along a straight line, so that the taking mechanism 5 only needs to take and place materials along the straight line.

[0086] In this embodiment, the storage column 9 can be vertically placed or inclinedly arranged, and the inclined arrangement is because the circlip H is conveniently slid to the bottom of the storage column 9 and does not shake during the sliding process.

[0087] In this embodiment, the taking mechanism 5 can be a mechanical hand or a vacuum suction disc mechanism.

[0088] In this embodiment, the pressing sleeve 13 and the mandrel 14 can be relatively movable, and the cooperation of the two can play a guiding role.

[0089] In this embodiment, the product 8 is provided with a spring H slot on the side, and the pressing sleeve 13 is mainly used to push the product 8 to the spring H slot.

[0090] In this embodiment, the shaft sleeve can be pressed down through the cooperation of the pressing sleeve 13 and the mandrel 14, thereby realizing automatic assembly of the spring H. Specifically, the mandrel 14 is lowered to abut against the end face of the product 8, the expansion shaft 18 extrudes the spring H and makes the spring H elastically expand to be positioned on the side of the expansion shaft 18; then, the pressing sleeve 13 is lowered relative to the mandrel 14, and after abutting against the upper surface of the spring H, the spring H is pushed to the side of the product 8. Different from the guiding operation of the guide surface in the prior art, the application realizes automatic assembly of the spring H through the cooperation of the pressing sleeve 13 and the mandrel 14, without the need for a guide surface, and has a wide range of applications.

[0091] It should be noted that the inner diameter of the pressing sleeve 13 needs to be smaller than the outer diameter of the spring H. The product 8 is a hollow shaft.

[0092] The relative motion state of the mandrel 14 and the pressing sleeve 13 needs to meet that the mandrel 14 enters the pressing sleeve 13, and the pressing sleeve 13 pushes the spring H on the side of the expansion shaft 18 to the side of the product 8.

[0093] Preferably, the automatic assembly device further comprises a storage mechanism 3 with a discharge end 2 and a temporary storage mechanism 4; the storage mechanism 3 is arranged beside the assembly station 7, the temporary storage mechanism 4 is arranged between the assembly station 7 and the storage mechanism 3 and located on the workbench 1, the temporary storage mechanism 4 has a storage column 9, the storage column 9 has a free end 10 that is connected to the discharge end 2, when the storage mechanism 3 discharges the spring H from the discharge end 2, the spring H is guided along the axial direction of the storage column 9 through the free end 10 and is radially positioned and fitted on the outer circumferential surface of the storage column 9; when the spring H is grabbed by the grabbing end 11, the spring H is guided out of the storage column 9 along the axial direction of the free end 10.

[0094] In this embodiment, the automatic sorting and discharging can be realized through the arrangement of the storage column 9, thereby realizing automatic sorting of the spring H. Specifically, when the storage mechanism 3 discharges the spring H from the discharge end 2, the spring H is guided along the axial direction of the storage column 9 through the free end 10 and is radially positioned and fitted on the outer circumferential surface of the storage column 9. At this time, the storage column 9 plays a role of temporary storage. Then, the grabbing end 11 will transfer the spring H positioned on the storage column 9 to above the product 8, that is, from the free end 10 to the free end 10, which is different from the prior art of entering from above and discharging from below, thereby reducing the risk of clamping and realizing automatic sorting and uninterrupted feeding of the spring H.

[0095] The storage mechanism 3 is a vibrating disc.

[0096] Preferably, the pressing driving mechanism is composed of a first lifting module 12 and a second lifting module 15, the first lifting module 12 acts on the pressing sleeve 13, and the second lifting module 15 acts on the mandrel 14.

[0097] The first lifting module 12 and the second lifting module 15 can be air cylinders, telescopic rods or screw rod sliding sleeve mechanisms. Further, another embodiment is provided for the mandrel 14 and the pressing sleeve 13, two springs are arranged above the mandrel 14 and the pressing sleeve 13 respectively, and the length of the spring arranged above the mandrel 14 is greater than that of the other spring.

[0098] Preferably, the first lifting module 12 is positioned on a support 16 arranged on the workbench 1, a fixed frame 17 is installed on the working end of the first lifting module 12, the pressing sleeve 13 is positioned on the fixed frame 17 and corresponds to the assembly station 7; the second lifting module 15 is arranged on the fixed frame 17, and the working end of the second lifting module 15 is positioned and connected with the upper end of the mandrel 14.

[0099] The expansion shaft 18 can be a frustum or a sphere, as long as it has a guide surface at the lower end.

[0100] The clamping spring H often needs to be expanded during assembly to increase its size for easy assembly. In order to achieve this assembly operation, when the clamping spring H slides along the lower end of the mandrel 14, the clamping spring H is elastically deformed by the extrusion of the expansion shaft 18 and is sleeved and arranged on the circumferential side of the expansion shaft 18. That is, the clamping spring H first rises along the guide surface of the lower end of the mandrel 14, gradually contacts the expansion shaft 18, and then rises towards the expansion shaft 18, widens and elastically deforms while rising, and is sleeved and arranged on the circumferential side of the expansion shaft 18.

[0101] Preferably, a lead-in slope is arranged on the bottom end of the mandrel 14.

[0102] The lead-in slope is the guide surface described above, which is mainly used to guide the clamping spring H to the mandrel 14 for positioning, and then fix it through the circumferential side of the expansion shaft 18.

[0103] Preferably, a pre-assembly station 28 is arranged between the temporary storage mechanism 4 and the assembly station 7; in use, the clamping spring H is carried from the temporary storage mechanism 4 to the pre-assembly station 28, and the clamping spring H is positioned on the expansion shaft 18 at the pre-assembly station 28.

[0104] With the above design, when the clasp H is assembled to the outer peripheral side of the expansion shaft 18, the difficulty is low. If there is no pre-assembly station 28, the clasp H is directly transferred to the product 8 directly above, at this time the surface directly above the product 8 is in abutment with the lower surface of the clasp H, and the surface above the product 8 is a certain height from the bottom. Then, the mandrel 14 is inserted into the product 8 until it moves to the expansion shaft 18, at this time the expansion shaft 18 is inserted into the product 8 to expand the clasp H. During this process, if the clasp H shakes, it is easy to slip off the product 8 and present an inclined state.

[0105] With the pre-assembly station 28, the clasp H will not be in an inclined state.

[0106] The structure of the pre-assembly station 28 is as follows Figure 11 The clasp H is first placed on the pre-assembly station 28, and the center of the pre-assembly station 28 is provided with a hole matched with the clasp H.

[0107] Preferably, the workbench 1 is provided with a transfer module, the transfer module includes a track 19, the track 19 is arranged along the length direction of the workbench 1, and the assembly station 7 is formed on the track 19; the transfer module is configured to move the product 8 to the assembly station 7 or move the product 8 in the assembly station 7 out.

[0108] In order to enable the product 8 to continuously perform the actions of feeding, assembling the clasp H and discharging, the product 8 is placed on the upper surfaces of the two tracks 19, and automatic operation is realized by the driving of the two tracks 19.

[0109] Preferably, the bracket 16 is provided with a carrying module 20, and the working end of the carrying module 20 is connected with the first lifting module 12, so as to guide the fixed frame 17 to move along a direction perpendicular to the moving direction of the track 19.

[0110] The carrying module 20 can be a lead screw and sleeve structure, and the working end of the carrying module 20 is a sleeve. The sleeve is connected with the fixed frame 17, so as to realize the purpose of guiding the fixed frame 17 to move along a direction perpendicular to the moving direction of the track 19. The lead screw and sleeve structure is arranged above the assembly station 7 and perpendicular to the moving direction of the track 19.

[0111] Preferably, the material taking mechanism 5 includes a limiting frame 21 positioned on the fixed frame 17, and a suction cup is positioned on the limiting frame 21, and the suction cup is the grabbing end 11.

[0112] That is, the suction cup moves up and down with the fixing frame 17, so as to satisfy an operation that the fixing frame 17 with the suction cup is lowered to the free end 10 of the storage column 9, then the suction cup sucks the circlip H, and then the transfer module guides the movement of the fixing frame 17 so that the suction cup with the circlip H is above the product 8, and then the suction cup lowers to place the circlip H above the product 8.

[0113] Preferably, the temporary storage mechanism 4 comprises an adjusting turntable 22 arranged on the workbench 1 and located between the storage mechanism 3 and the assembly station 7; the upper surface of the adjusting turntable 22 is provided with a plurality of storage columns 9, the plurality of storage columns 9 are arranged around the axis of the adjusting turntable 22 and are uniformly distributed, and the axis of the storage column 9 is perpendicular to the upper surface of the adjusting turntable 22; when the discharge end 2 discharges the circlip H, the adjusting turntable 22 is configured to rotate by a set angle so that each storage column 9 is sleeved with the circlip H.

[0114] One storage column 9 is provided with fewer circlips H, and the suction cup has a smaller lowering distance; in order to continuously supply the circlips H, when one storage column 9 is full of circlips H, the adjusting turntable 22 is rotated by a set angle so that the next storage column 9 is full of circlips H, and the circlips H are sleeved on each storage column 9.

[0115] Then, the material taking can be performed.

[0116] Preferably, the upper surface of the adjusting turntable 22 is provided with a plurality of lifting grooves 23 arranged around the axis of the adjusting turntable 22 and uniformly distributed, each lifting groove 23 is correspondingly arranged with each storage column 9; the lower portion of the adjusting turntable 22 is provided with a lifting device, the lifting device has a lifting end 24 used for moving up and down along the axis direction of the storage column 9, and the lifting end 24 is correspondingly arranged with the lifting groove 23; when the lifting end 24 slides up and passes through the lifting groove 23, the upper surface of the lifting end 24 is in contact with the circlip H sleeved at the bottom of the storage column 9.

[0117] The lifting device can be an electric push rod or a piston, a cylinder or other linear driving components.

[0118] When the circlip H at the free end 10 of the storage column 9 currently being taken is finished, the lifting end 24 slides up and passes through the lifting groove 23, at this time, the upper surface of the lifting end 24 is in contact with the circlip H sleeved at the bottom of the storage column 9, and as the lifting end 24 rises, after the previous circlip H is taken away, the next circlip H is pushed to the free end 10.

[0119] Until the circlips H on the storage column 9 are taken.

[0120] Then, the lifting end 24 is reset, and the adjusting turntable 22 is rotated by a set angle. The suction cup performs the circlip H taking operation on the next storage column 9.

[0121] Preferably, the lifting groove 23 is composed of two parallel long grooves 25, and the storage column 9 is arranged between the two long grooves 25.

[0122] The lifting end 24 is a lifting block, and the lifting block is U-shaped.

[0123] The lifting block is U-shaped, so that when the lifting block passes through the lifting groove 23, there are two positions on the lifting block that are in contact with the snap spring H, and the snap spring H will not tilt when it is pushed out.

[0124] Preferably, the storage column 9 includes a column body 26 and a guide block 27 arranged on the side of the column body 26, and the guide block 27 is arranged in sequence from bottom to top along the axial direction of the column body 26.

[0125] If the storage column 9 is tilted, it will be difficult to take the material by the suction cup. Therefore, through the design of the column body 26 and the guide block 27, the snap spring H will not shake during the descending process, and it is also more convenient to take the material.

[0126] The suction cup can be pneumatic or electric.

[0127] Working principle:

[0128] It is divided into two steps, taking and placing materials and assembling.

[0129] When the storage mechanism 3 discharges the snap spring H from the discharge end 2, the discharge end 2 is aligned with the storage column 9 at this time, the snap spring H descends due to gravity and is guided along the axial direction of the storage column 9 through the free end 10, and then is positioned and sleeved radially on the outer circumferential surface of the storage column 9. At this time, the storage column 9 plays a temporary storage role. When a storage column 9 is full of snap springs H, adjust the rotation of the rotating disc 22 to set an angle to make the next storage column 9 full of snap springs H, until each storage column 9 is sleeved with snap springs H.

[0130] Then, the material can be taken.

[0131] The suction cup selects a storage column 9, the fixed frame 17 with the suction cup descends to the free end 10 of the storage column 9, then the suction cup sucks the snap spring H, and then the transfer module guides the movement of the fixed frame 17 to make the suction cup with the snap spring H move to the pre-assembly station 28, and then the suction cup is lowered to place the snap spring H in the pre-assembly station 28.

[0132] Then, the working end of the first lifting module 12 moves towards the product 8 with the press sleeve 13 and the mandrel 14 to make the product 8 be pre-positioned at the pre-assembly station 28, when the circlip H slides up along the lower end of the mandrel 14, the circlip H is elastically deformed by the extrusion of the expansion shaft 18 and is sleeved on the periphery of the expansion shaft 18. That is, at the pre-assembly station 28, the circlip H first rises along the guide surface of the lower end of the expansion shaft 18, expands and elastically deforms when rising, and is then sleeved on the periphery of the expansion shaft 18. That is, the mandrel 14 and the press sleeve 13 reach the expansion state.

[0133] Subsequently, the circlip H, the mandrel 14 and the press sleeve 13 move to the upper side of the product 8, and then the circlip H, the mandrel 14 and the press sleeve 13 descend and position the circlip H on the periphery of the product 8.

[0134] That is, the mandrel 14 moves relative to the press sleeve 13, and then the mandrel 14 enters the press sleeve 13, and the press sleeve 13 pushes the circlip H on the periphery of the expansion shaft 18 to the periphery of the product 8. Specifically, refer to Figure 9 At this time, the mandrel 14 and the press sleeve 13 switch to the pressing state, the second lifting module 15 lifts the mandrel 14, and the first lifting module 12 lowers the fixed frame 17 and the press sleeve 13.

[0135] When the circlip H is pushed by the lower end of the press sleeve 13 to contact the upper end of the product 8, the mandrel 14 is inserted into the product 8 until it reaches the position shown in Figure 9 At this time, the operation of pushing the circlip H on the periphery of the expansion shaft 18 to the periphery of the product 8 is completed.

[0136] After the circlip H on the free end 10 of the storage column 9 currently being taken is taken, the lifting end 24 slides through the lifting groove 23, at this time the upper surface of the lifting end 24 is in contact with the circlip H sleeved on the bottom of the storage column 9, and as the lifting end 24 rises, the next circlip H is pushed to the free end 10 after the previous circlip H is taken.

[0137] Until the circlip H on the storage column 9 is taken.

[0138] After that, the lifting end 24 is reset, and the rotating disc 22 is adjusted to rotate by a set angle. The suction cup takes the circlip H from the next storage column 9.

[0139] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An automatic assembly device for shaft retaining rings, characterized in that: It comprises a workbench (1) and a pressing mechanism (6); The workbench (1) is provided with an assembly station (7) on which a product (8) to be assembled with a clamp spring (H) is positioned; The pressing mechanism (6) is arranged above the assembly station (7), and the pressing mechanism (6) is provided with a pressing head extending downward, which is composed of a mandrel (14) and a pressing sleeve (13) sleeved outside the mandrel (14), and the mandrel (14) and the pressing sleeve (13) are configured to be relatively movable in the axial direction of the mandrel (14); the outer ring of the mandrel (14) has an expansion shaft (18) for expanding the clamp spring (H); and the lower end face of the pressing sleeve (13) serves as a downward pressing surface for the clamp spring (H). The mandrel (14) and the pressing sleeve (13) are acted on by a pressing driving mechanism, which drives the mandrel (14) and the pressing sleeve (13) to relatively move in the axial direction of the mandrel (14), so that the mandrel (14) and the pressing sleeve (13) have an expansion state and a pressing state; in the expansion state, the expansion shaft (18) is exposed downward from the downward pressing surface of the pressing sleeve (13); and in the pressing state, the downward pressing surface of the pressing sleeve (13) moves downward beyond the expansion shaft (18). In use, the pressing head of the pressing mechanism (6) is pressed downward as a whole, the mandrel (14) and the expansion shaft (18) first reach the expansion state and make the clamp spring (H) elastically expand, so that the mandrel (14) extends into the clamp spring (H); and then the pressing state is switched to, so that the downward pressing surface of the pressing sleeve (13) presses the clamp spring (H) and presses it downward, so that it is sleeved on the periphery of the product (8).

2. The automatic assembling device for a shaft clamp spring according to claim 1, wherein: The automatic assembly device further comprises a material taking mechanism (5), a material storage mechanism (3) having a discharge end (2), and a temporary storage mechanism (4); The material taking mechanism (5) is arranged above the assembly station (7), and the material taking mechanism (5) is provided with a grabbing end (11) configured to grab the clamp spring (H) to a set position; The material storage mechanism (3) is arranged beside the assembly station (7), the temporary storage mechanism (4) is arranged between the assembly station (7) and the material storage mechanism (3) and on the workbench (1), the temporary storage mechanism (4) is provided with a storage column (9), the storage column (9) is provided with a free end (10) which is connected to the discharge end (2), when the material storage mechanism (3) discharges the clamp spring (H) from the discharge end (2), the clamp spring (H) is guided along the axial direction of the storage column (9) through the free end (10) and is radially positioned and sleeved on the outer peripheral surface of the storage column (9); When the grabbing end (11) grabs the clamp spring (H), the clamp spring (H) is guided axially from the peripheral side of the storage column (9) through the free end (10).

3. The automatic assembling device for a shaft clamp spring according to claim 1 or 2, characterized in that: The pressing driving mechanism is composed of a first lifting module (12) and a second lifting module (15), the first lifting module (12) acts on the pressing sleeve (13), and the second lifting module (15) acts on the mandrel (14).

4. The automatic assembling device for a shaft clamp spring according to claim 3, wherein: The first lifting module (12) is positioned on a support (16) arranged on the workbench (1), and a fixing frame (17) is arranged at the working end of the first lifting module (12), and the pressing sleeve (13) is positioned on the fixing frame (17) and corresponds to the assembly station (7); The second lifting module (15) is arranged on the fixing frame (17), and the working end of the second lifting module (15) is connected with the upper end of the mandrel (14).

5. The automatic assembling device for the shaft clamp spring according to claim 2, wherein: A pre-assembly station (28) is arranged between the temporary storage mechanism (4) and the assembly station (7); in use, the circlip (H) is carried from the temporary storage mechanism (4) to the pre-assembly station (28), and the circlip (H) is positioned on the expansion shaft (18) at the pre-assembly station (28).

6. The automatic assembling device for the shaft clamp spring according to claim 4, wherein: A transfer module is arranged on the workbench (1), and the transfer module comprises a track (19), the track (19) is arranged along the length direction of the workbench (1), and the assembly station (7) is formed on the track (19); The transfer module is configured to move the product (8) to the assembly station (7) or move the product (8) in the assembly station (7) out.

7. The automatic assembling device for the shaft clamp spring according to claim 6, wherein: A carrying module (20) is arranged on the support (16), and the working end of the carrying module (20) is connected with the first lifting module (12) to guide the fixing frame (17) to move along a direction perpendicular to the moving direction of the track (19).

8. The automatic assembling device for the shaft clamp spring according to claim 2, wherein: The temporary storage mechanism (4) comprises an adjusting turntable (22), and the adjusting turntable (22) is arranged on the workbench (1) and located between the storage mechanism (3) and the assembly station (7); A plurality of storage columns (9) are arranged on the upper surface of the adjusting turntable (22), the storage columns (9) are evenly arranged around the axis of the adjusting turntable (22), and the axes of the storage columns (9) are perpendicular to the upper surface of the adjusting turntable (22); when the circlip (H) is discharged from the discharging end (2), the adjusting turntable (22) is configured to rotate by a set angle to enable the circlip (H) to be sleeved on each storage column (9).

9. The automatic assembling device for the shaft clamp spring according to claim 8, wherein: A plurality of lifting grooves (23) are arranged on the upper surface of the adjusting turntable (22) and evenly arranged around the axis of the adjusting turntable (22), and each lifting groove (23) is arranged correspondingly to each storage column (9). A lifter is arranged below the adjusting turntable (22), the lifter has a lifting end (24) for moving up and down along the axis of the storage column (9), and the lifting end (24) is arranged correspondingly to the lifting groove (23). When the lifting end (24) slides up and passes through the lifting groove (23), the upper surface of the lifting end (24) is in contact with the circlip (H) sleeved on the bottom of the storage column (9).

10. The automatic assembling device of the shaft clamp spring according to claim 9, wherein: The lifting groove (23) is composed of two parallel long grooves (25), and the storage column (9) is arranged between the two long grooves (25). The lifting end (24) is a lifting block, and the lifting block is U-shaped.

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