An automatic continuous high-precision surface polishing production line and process for fasteners

Abstract

The present invention provides a continuous high-precision automatic rivet surface polishing production line and process in the field of fastener processing technology. The continuous high-precision automatic rivet surface polishing production line includes: a rivet feeding unit for annularly and circularly clamping and guiding rivets along a waveform direction; a transfer unit arranged at one end of the rivet feeding unit and used for positioning and clamping the conveyed rivets to the rivet feeding unit; a sand pushing part arranged below the guiding waveform of the rivet feeding unit and used for pushing sand bodies towards the surface of the rivets; and a blanking unit arranged on one side of the transfer unit and used for removing the rivets that have been polished on the rivet feeding unit. The present invention is particularly suitable for the polishing treatment of rivets with openings on the rivet body, can accurately complete the automatic continuous positioning, picking and placing of rivets, and can ensure the surface integrity of the rivets after polishing, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of fastener processing, and in particular to a continuous high-precision automatic surface polishing production line and process for fasteners. Background Art

[0002] During the processing and production of fasteners, rivets are batch-fed into a polishing barrel, and the polishing sand in the barrel rotates together with the fasteners to achieve the polishing treatment of the fasteners. After polishing is completed, the machine is stopped and the polishing sand is filtered out to obtain the polished products.

[0003] Chinese Patent Application Publication No. CN109015327A discloses a grinding tool for rivet production, including a rolling mixing cylinder, an upper end of the rolling mixing cylinder is provided with a movable cylinder cover, the movable cylinder cover and the rolling mixing cylinder are connected by hinge hinges, there are two hinge hinges, one side of the movable cylinder cover is provided with movable buckles, there are two movable buckles, one end of the movable cylinder cover is provided with a second rolling device, the second rolling device includes a second motor, a second driven roller, a second driving gear and a second fixed shaft, a second driving gear is installed at a bottom end of the second driven roller, a second motor is installed at one end of the second driving gear, the second driving gear and the second motor are connected by the second fixed shaft, and a second support bottom plate is installed at a bottom end of the second rolling device.

[0004] However, during the assembly process of, for example, a storage battery, the fasteners used need to have the characteristic of good sealing during installation. Therefore, the surface requirements for the contact positions between the fasteners and the storage battery materials after polishing are relatively high. In the above solution, although the rolling polishing of the fasteners can be achieved, since the fasteners freely roll and polish in the abrasive, it is impossible to ensure the dimensional consistency of each fastener after polishing, and there are easily situations such as bumping and wear. Summary of the Invention

[0005] The purpose of the present invention is to provide a continuous high-precision automatic surface polishing production line and process for fasteners in view of the deficiencies of the prior art. By continuously passing the rivets through the sand body for all-round and fixed-trajectory surface polishing treatment, and automatically loading and unloading the continuously processed rivets, the automatic polishing treatment of high-precision fasteners is realized.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A continuous high-precision automatic surface polishing production line for fasteners, comprising: a rivet feeding unit for annularly and circularly clamping and guiding rivets in a waveform direction; a transfer unit arranged at one end of the rivet feeding unit and used for positioning and clamping the transported rivets to the rivet feeding unit; a sand pushing part arranged below the guiding waveform of the rivet feeding unit and used for pushing sand bodies towards the surface of the rivets; and a blanking unit arranged on one side of the transfer unit and used for removing the rivets that have been polished on the rivet feeding unit.

[0008] Further, the rivet feeding unit includes: a frame; a guiding part installed on the frame; and a power carrying part installed on the guiding part; the power carrying part carries the rivets along the waveform guiding direction of the guiding part and passes through the moving unit, the sand pushing part, and the blanking unit respectively.

[0009] Further, the power carrying part includes: a power seat; power wheels arranged on both sides of the power seat and clamped on the guiding bracket; a clamping assembly arranged at the bottom of the power seat; a driving part for driving the clamping assembly and the power wheels to rotate; and a triggering part arranged on one side of the power seat and corresponding to the moving unit and the blanking unit respectively.

[0010] Further, the clamping assembly includes: a mounting disc arranged at the bottom of the power seat and connected to the rotating shaft; a buckling disc arranged on the mounting disc; a moving channel opened on the buckling disc; pressing seats arranged on both sides of the mounting disc; a clamping seat arranged at the bottom of the buckling disc; a linkage rod passing through the moving channel and connecting the clamping seat and the pressing seats respectively; and a clamping spring connected between the clamping seats.

[0011] Further, the moving unit includes: a feeding assembly; and a guiding assembly arranged on one side of the feeding assembly; the guiding assembly guides the rivets with their heads facing up to the feeding assembly, the feeding assembly switches the heads to face down, and when the triggering part arrives, the feeding assembly is linked to guide the rivets to the power carrying part.

[0012] Further, the feeding assembly includes: symmetrically arranged guiding clamp seats; a lifting driving part arranged on one side of the guiding clamp seats; a linkage blocking part installed on the lifting driving part and corresponding to the triggering part; and a guiding part arranged on one side of the linkage blocking part.

[0013] Further, the guiding clamp seat includes: a clamping body with a clamping opening formed on the inner side; a rotating frame arranged on one side of the clamping body; a clamping driving part arranged on the rotating frame and driving the clamping body to move towards each other; a lifting frame arranged on one side of the rotating frame; a rotating motor installed on the lifting frame and with its power end connected to the rotating frame; and a limiting cylinder arranged on the clamping body and corresponding to the pressing seat.

[0014] Furthermore, the linkage stopper includes: a lower connecting member connected to the lifting drive member; an upper connecting member slidably connected to the top of the lower connecting member; and a guide block installed on one side of the upper connecting member; the guide block is slidably arranged in the guide member.

[0015] Furthermore, the unloading unit includes: an output belt; a unloading seat arranged on one side of the output belt; a push-out cylinder elastically connected to the unloading seat; and a resistance member installed on one side of the push-out cylinder; the polished rivet is contacted by the power-carrying part and the resistance member, and the push-out cylinder moves back and forth up and down to be positioned to the power-carrying part for clamping.

[0016] In order to achieve the above object, the present invention also provides a process for polishing fasteners using a continuous high-precision fastener surface automatic polishing production line, which is characterized by comprising the following steps:

[0017] Step 1: Workpiece turning process: the feeding assembly clamps and turns the rivet conveyed by the material guiding assembly so that the opening on the rivet body is arranged upward;

[0018] Step 2: Positioning and clamping process: under the guidance of the guide part, the power carrying part makes the trigger contact the feeding component and move with the feeding component, and at the same time, the feeding component pushes the opening of the rivet to the power carrying part for clamping, and withdraws from the power carrying part after the clamping is completed;

[0019] Step 3, rivet polishing process, the power carrying part carries the rivet while rotating and moving in the sand body of the sand pushing part along the wave-shaped guide direction of the guide part, and the sand pushing part performs all-round polishing on the rivet by reciprocating sand pushing action up and down along the wave-shaped guide direction;

[0020] Step 4: blanking and positioning process: the power carrier carries the polished rivet to the blanking unit, and the gradually upward-moving abutment contacts the power carrier and moves along with the power carrier, while the ejector cylinder moves upward and links the power carrier to make the rivet fall into the ejector cylinder;

[0021] Step 5: In the rivet output process, the ejector cylinder continues to move downward and releases the rivet after reaching a predetermined height above the output belt, and the rivet falls onto the output belt for output.

[0022] The beneficial effects of the present invention are:

[0023] (1) The present invention realizes the mutual cooperation between the rivet guide unit and the transfer unit. The transfer unit flips the upper opening of the rivet to an upward arrangement, so that the rivet body opening can be inserted into the power carrier for clamping, thereby realizing automatic rivet feeding and ensuring all-round polishing of the rivet.

[0024] (2) Through the mutual cooperation between the power carrying part and the linkage blocking part, during the process that the turned rivet moves synchronously with the power carrying part, the opening of the rivet body is lifted to the power carrying part to complete the clamping process. Thus, while realizing the rapid clamping of the rivet to the power clamping part, the technical problem that the power carrying part cannot accurately position the rivet to the power carrying part due to inaccurate moving displacement is solved;

[0025] (3) Through the mutual cooperation between the rivet feeding unit and the sand pushing part, the rivet completed by clamping through the power carrying part is continuously transferred to the sand pushing part along the waveform guiding direction of the guiding part. Thus, under the reciprocating pushing action of the sand pushing part on the sand body, the reciprocating sand flushing actions of the sand body on the upper and lower parts of the rivet are fully realized, thereby improving the polishing efficiency and polishing effect on the surface of the rivet;

[0026] (4) Through the mutual cooperation between the sand pushing part and the blanking unit, the rivet completed by sand pushing and polishing is continuously conveyed by the power carrying part to the blanking unit. The power carrying part clamping the rivet contacts and moves synchronously with the power carrying part, so that the pushing cylinder is positioned to the power carrying part. While releasing the rivet on the power carrying part, when the contact part moves to the predetermined stroke, the continuous movement of the power carrying part is controlled, realizing the repositioning of the power carrying part, so as to ensure the uniform arrangement of the power carrying part on the guiding part, and thus enabling the power carrying part to accurately enter each process in a cycle;

[0027] (5) Through the mutual cooperation between the output belt, the pushing cylinder part and the contact part, the rivet fed into the pushing cylinder will continue to move down to a predetermined height above the conveyor belt following the pushing cylinder, causing the supporting block to contact the supporting seat and move to both sides, thereby opening the bottom space of the pushing cylinder, and the rivet is released onto the output belt, solving the problem that the rivet is damaged due to being impacted when directly released, and ensuring the product output of the polished rivet;

[0028] In summary, the present invention is particularly suitable for the polishing treatment of rivets with openings on the rivet body, can accurately complete the automatic continuous positioning, picking and placing of rivets, and can ensure the surface integrity of the rivet after polishing, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a schematic diagram of the transfer state of the transfer unit of the present invention;

[0031] Figure 3 is a schematic diagram of the state when the rivet is loaded into the present invention;

[0032] Figure 4 is a schematic diagram of the state after the rivet is loaded into the present invention;

[0033] Figure 5 Schematic diagram of the state of the rivet of the present invention after flipping;

[0034] Figure 6 Schematic diagram of the structure of the transfer unit of the present invention;

[0035] Figure 7 For the present invention Figure 6 Enlarged view at M in;

[0036] Figure 8 Schematic diagram of the structure of the guiding member of the present invention;

[0037] Figure 9 Schematic diagram of the structure of the material guiding assembly of the present invention;

[0038] Figure 10 Schematic diagram of the structure of the sand pushing part of the present invention;

[0039] Figure 11 For the present invention Figure 10 Cross-sectional view along A-A in;

[0040] Figure 12 Cross-sectional view of the pushing seat of the present invention;

[0041] Figure 13 Schematic diagram of the structure of the power carrying part of the present invention;

[0042] Figure 14 For the present invention Figure 12 Cross-sectional view along B-B in;

[0043] Figure 15 Schematic diagram of the blanking state of the blanking unit of the present invention;

[0044] Figure 16 Schematic diagram of the structure of the pushing cylinder part of the present invention;

[0045] Figure 17 Flow chart of the polishing process of the present invention. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0048] Embodiment 1

[0049] As Figure 1 shown, the present invention also provides a continuous high-precision automatic surface polishing production line for fasteners, including: a rivet feeding unit 1 for circularly clamping and guiding rivets along a waveform direction, a transfer unit 2 arranged at one end of the rivet feeding unit 1 and used for positioning and clamping the transported rivets to the rivet feeding unit 1, a sand pushing part 3 arranged below the guiding waveform of the rivet feeding unit 1 and used for pushing sand towards the surface of the rivet, and a blanking unit 4 arranged on one side of the transfer unit 2 and used for removing the rivets that have been polished on the rivet feeding unit 1.

[0050] It is not difficult to find from the above that during the polishing process of fasteners, especially rivets with a hollow opening at one end, by using the transfer unit 2, the rivets can be positioned and clamped on the rivet feeding unit 1 during the continuous movement of the rivet feeding unit 1, and the hollow opening can be aligned with the rivet feeding unit 1, so that the hollow opening is positioned and clamped by the rivet feeding unit 1. During the continuous transportation of the rivets by the rivet feeding unit 1, the rivets will be polished by the sand pushing part 3. Specifically, when the rivet feeding unit 1 transports the rivets to the sand pushing part 3, the rivets will be guided and transported along the waveform direction, so that the rivets can move obliquely downward or obliquely upward along the waveform direction. The sand pushing part 3 will perform a sand pushing action on the continuously obliquely downward moving rivets, so that the sand body can effectively friction the surface of the downward side of the rivets, thereby achieving polishing. During the continuous obliquely upward transportation of the rivets, the sand pushing part 3 will withdraw after lifting the sand body to the highest point. When withdrawing, the sand body has gravitational potential energy due to the action of gravity, and then acts downward on the upper surface of the upward side of the rising rivets in the reverse direction. Therefore, when the rivets reciprocate along the waveform guiding direction on the rivet feeding unit 1, the sand pushing part 3 will continuously process the rivets through the impact force of the sand body, thereby achieving the polishing effect. After cyclic polishing, the continuously transported rivets reach the blanking unit 4. The blanking unit 4 will move upward to pick up the rivets on the rivet feeding unit 1, and during the picking process, it will also continue to move to the positioning position following the rivet feeding unit 1, so that the rivet feeding unit 1 can be recalibrated before entering the clamping area of the transfer unit 1 again, thus ensuring the uniformity of the interval arrangement between adjacent rivets during the clamping and polishing process of each rivet.

[0051] As Figure 14 shown, the rivet includes a rivet body 10, an opening 20 formed at the end of the rivet body, and a nail cap 30 installed at the other end of the rivet body 10.

[0052] As Figure 1 shown, the rivet feeding unit 1 includes a frame 11, a feeding part 12 installed on the frame 11, and a power carrying part 13 installed on the feeding part 12. The power carrying part 13 carries the rivets and passes through the moving unit 2, the sand pushing part 3, and the blanking unit 4 along the feeding direction of the feeding part 12 respectively.

[0053] In this embodiment, when the power carrying part 13 located on the guiding part 12 arrives at the area of the transfer unit 2, the transfer unit 2 will send the arranged rivets with the hollow opening facing upward to the power carrying part 13. After the power carrying part 13 completes the clamping action on the rivet, it arrives at the area of the sand pushing part 3, and under the guidance of the waveform direction of the guiding part 12, the rivet is continuously moved obliquely upward and downward in the sand body, and in the process of movement, the sand pushing part 3 pushes the sand body to act on the surface of the upward side and the surface of the downward side of the rivet respectively, thereby improving the polishing effect on the upper and lower sides of the rivet, and after polishing is completed, the power carrying part 13 carries the rivet through the guiding part 12 to the unloading unit 4, and the unloading unit 4 removes the polished rivet.

[0054] like Figure 10 As shown, the guiding part 12 includes: guide brackets 121 distributed on both sides of the power carrying part 3; and a guide track 122 formed by the guide brackets 121; the guide bracket 121 is an annular bracket; the power carrying part 13 moves the rivet reciprocatingly up and down along the guide bracket 121 above the sand pushing part 3.

[0055] In this embodiment, when the guide part 12 guides the power carrying part 3, the power carrying part 13 moves on the guide track 122 formed between the guide brackets 121, so as to realize the oblique upward or oblique downward reciprocating movement and guidance of the power carrying part 13 in the sand body by using the guide track 122, and in the process of moving and guiding, the guide bracket 121 is an annular bracket, that is, the formed guide track 122 is also arranged in a ring shape, so that the power carrying part 13 can release the rivet after polishing the rivet, and take over the next group of rivets to be polished for cyclic processing.

[0056] like Figure 10 As shown, the guide bracket 121 includes: connecting brackets 1211 arranged at both ends; and a corrugated bracket 1212 connected between the connecting brackets 1211 and arranged above the sand pushing part 3.

[0057] In this embodiment, when the guide bracket 121 forms the guide track 122, the corrugated bracket 1212 is connected by the guide track 122 formed by the connecting bracket 1211, and when the power carrying part 3 carries the rivet on the corrugated bracket 1212 and moves, it moves obliquely upward or obliquely downward in the sand body along the guide track 122 formed by the corrugated curve of the corrugated bracket 1212, thereby realizing the reciprocating movement of the rivet in the sand body along the arrangement direction of the sand pushing part 3.

[0058] like Figure 13 and 14As shown, the power carrying part 13 includes a power seat 131, power wheels 132 arranged on both sides of the power seat 131 and clamped on the guiding bracket 121, a clamping assembly 134 arranged at the bottom of the power seat 131, a driving part 133 for driving the clamping assembly 134 and the power wheels 132 to rotate, and a triggering part 135 arranged on one side of the power seat 131 and corresponding to the moving unit 2 and the blanking unit 4 respectively.

[0059] In this embodiment, through the driving power of the driving part 133, the power wheels 132 on the power seat 131 can be driven to rotate on the guiding bracket 121, so as to drive the power seat 31 to move obliquely upward or obliquely downward in the guiding direction of the guiding bracket 121. At the same time when the driving part 133 drives the power wheels 132 to rotate, it will also drive the clamping assembly 134 clamping the rivets to rotate, so as to realize the all-round polishing treatment of the rotating rivets by the guiding part 12 and the sand pushing part 3.

[0060] It should be noted that during the process of the power seat 131 moving on the guiding bracket 121 driven by the power wheels 132, when the power seat 131 reaches the area of the moving unit 2, the triggering part 135 on the power seat 131 will trigger the moving unit 2, so that the moving unit 2 can correspondingly guide the rivets to the moving clamping assembly 134. After the rivets are positioned and installed by the clamping assembly 134, the moving unit 2 withdraws from the triggering part 135. And when the power seat 131 reaches the area of the blanking unit 4, it will also trigger the blanking unit 4 to take the polished rivets on the arriving clamping assembly 134.

[0061] It should also be supplemented that the driving part 133 includes a rotating shaft 1331 movably passing through the power seat 131, a driving motor 1332 arranged at the top of the power seat 131 and with its power end connected to the rotating shaft 331, and a power gear 1333 installed on the rotating shaft 1331 and in transmission connection with the power wheel 132.

[0062] In this embodiment, the driving motor 1332 preferably a servo motor drives the rotating shaft 1331 to rotate, so as to drive the clamping assembly 134 to drive the rivets to rotate for polishing treatment. At the same time when the rotating shaft 1331 rotates, it is transmitted to the power wheel 132 through the power gear 1333, so as to drive the power wheel 132 to rotate on the guiding bracket 121, and then drive the power seat 131 to move along the guiding direction of the guiding bracket 121.

[0063] In addition, the power wheel 132 includes a wheel body 1321 and a driving gear 1322 installed on the top of the wheel body 1321, and the driving gear 1322 meshes with the power gear 1333.

[0064] In this embodiment, when the driving gear 1333 rotates, it will drive the driven gear 1322, thereby driving the wheel body 1321 to rotate, so that the rotating wheel body 1321 moves relatively on the guiding bracket 121.

[0065] It should also be noted that, as Figure 13 shown, the clamping assembly 134 includes a mounting disc 1341 provided at the bottom of the power seat 131 and connected to the rotating shaft 1331, a buckling disc 1342 arranged on the mounting disc 1341, a moving channel 1343 opened on the buckling disc 1324, pressing seats 1345 arranged on both sides of the mounting disc 1341, a clamping seat 1344 provided at the bottom of the buckling disc 1342, a linkage rod 1346 passing through the moving channel 1343 and connecting the clamping seat 1344 and the pressing seats 1345 respectively, and a clamping spring 1347 connected between the clamping seats 1344.

[0066] In this embodiment, when clamping a rivet with a hollow structure at one end, the hollow opening of the rivet is inserted through the clamping seat 1344 onto the buckling disc 1342 for clamping. Specifically, by pressing the pressing seat 1345, it is transmitted to the clamping seat 1344 through the linkage rod 1346, so that the clamping seat 1344 contracts inward to a size smaller than the inner diameter of the hollow opening of the rivet, and then the hollow opening of the rivet passes through the clamping seat 1344 and buckles on the buckling disc 1342. It should be noted that the outer surface of the buckling disc 1342 is a conical structure. Further, after being completely inserted, the hollow opening of the rivet will be set on the buckling disc 1342 to obtain a seal. When the pressing seat 1345 is released, the clamping spring 1347 releases elastic potential energy, so that the clamping seat 1344 can press into the inner wall of the hollow opening to realize the clamping of the rivet.

[0067] It should be noted that through the cooperative connection between the clamping seat 1344 and the pressing seat 1345 in the above manner, clamping of rivets with different specifications, that is, the inner diameter sizes of the openings 20 on different rivet bodies 10, can be realized, and further, continuous polishing treatment of rivets with different specifications of openings 20 can be achieved simultaneously.

[0068] As Figure 6 shown, the moving unit 2 includes: a feeding assembly 21 and a guiding assembly 22 arranged on one side of the feeding assembly 21. The guiding assembly 22 guides the rivets with their heads facing up to the feeding assembly 21, and the feeding assembly 21 switches the heads to face down. When the triggering member 135 arrives, the feeding assembly 21 is linked to guide the rivets to the power carrying part 13.

[0069] In this embodiment, when the moving unit 2 guides the rivets to the power carrying part 13, the continuous supply of rivets with their heads facing up will first be clamped by the material guiding assembly 22 and sent to the feeding assembly 21. While clamping the fed rivets, the material guiding assembly 22 switches the rivets to a state where their heads face down, so that the hollow openings of the rivets can correspond to the power carrying part 13. When the trigger 135 contacts the material guiding assembly 22, the material guiding assembly 22 is driven to carry the rivets and position them on the power carrying part 13 for positioning and clamping.

[0070] As Figure 7 shown, the feeding assembly 21 includes symmetrically arranged material guiding clamp seats 211, a lifting driving part 212 arranged on one side of the material guiding clamp seats 211, a linkage blocking part 213 installed on the lifting driving part 212 and corresponding to the trigger 135, and a guiding part 214 arranged on one side of the linkage blocking part 213.

[0071] In this embodiment, the material guiding assembly 22 feeds the rivets with their heads facing up onto the material guiding clamp seats 211. The material guiding clamp seats 211 clamp the rivets and drive the rivets to rotate, so that the heads of the rivets face down and the hollow openings of the rivets face up. When the power carrying part 13 moves towards the feeding assembly 21, the trigger 135 contacts the linkage blocking part 213, so that the linkage blocking part 213 moves together with the power carrying part 13 under the guiding action of the guiding part 214. During the movement, the linkage blocking part 213 drives the lifting driving part 212 in a linkage manner, thereby driving the material guiding clamp seats 211 to move upward and positioning the rivets on the power carrying part 13. Under the guiding action of the guiding part 214, when the hollow opening of the rivet is inserted tightly into the power carrying part 13, the guiding part 214 drives the linkage blocking part 223 to leave the trigger 135. Thus, the lifting driving part 212 drives the material guiding clamp seats 211 to return to the original position without the power action of the trigger 135 on the linkage blocking part 213, and the linkage blocking part 213 also returns to the original position, waiting for the arrival of the trigger 135 on the next group of power carrying parts 13.

[0072] As Figure 7 shown, the material guiding clamp seat 211 includes a clamping body 2111 with a clamping opening 21111 formed inside, a rotating frame 2112 arranged on one side of the clamping body 2111, a clamping driving part 2113 arranged on the rotating frame 2112 and driving the clamping body 2111 to move towards each other, a lifting frame 2114 arranged on one side of the rotating frame 2112, a rotating motor 2115 installed on the lifting frame 2114 and with its power end connected to the rotating frame 2112, and a limiting cylinder 2116 arranged on the clamping body 2111 and corresponding to the pressing seat 1345.

[0073] In this embodiment, the rotary motor 2115, preferably a servo motor, drives the rotary frame 2112 to rotate. After the feeding assembly 22 feeds the rivets with their heads facing up into the clamping opening 21111 of the clamping body 2111, the clamping driving member 2113 drives the clamping body 2111 to clamp the rivets, and the rotary frame 2112 drives the clamping body 2111 to rotate, so that the heads of the rivets are arranged facing downwards.

[0074] It should be noted that during the process of the clamping body 2111 carrying the rivets and moving upwards to the power carrying part 13, the limiting cylinder 2116 will first come into contact with the pressing seat 1345 and squeeze the pressing seat 1345 to move inwards. At the same time, the clamping seat 1344 is driven to move inwards through the linkage rod 1346, so that the outer diameter of the clamping seat 1344 is smaller than the inner diameter of the hollow opening of the rivet. When the rivet continues to move, the clamping seat 1344 enters the hollow opening, and the end of the hollow opening will abut against the buckling disc 1342. Thus, the sealing is achieved by the buckling disc 1342 arranged in a conical shape to block the end of the hollow opening, preventing the sand body from entering the hollow opening. Then, the clamping driving part 2113 drives the clamping body 2111 to open. During the opening process, the clamping spring 1347 acts with elastic force to support the clamping seat 1344, so that the clamping seat 1344 is pressed against the inner wall of the hollow opening of the rivet. Subsequently, the linkage stopper 213 leaves the trigger member 135 under the guiding action of the guiding member 214. Then, the lifting driving member 212 drives the clamping body 2111 to return to the original position to reload the rivets.

[0075] Furthermore, the clamping driving part 2113 includes a clamping driving lead screw (not shown in the figure) installed on the rotary frame 2112 and threadedly connected to the clamping body 2111 in a reverse thread manner, and a clamping driving motor 21131 arranged on the clamping body 2111 with its power end connected to the clamping driving lead screw.

[0076] In this embodiment, the clamping driving motor 21131, preferably a servo motor, drives the clamping driving lead screw to rotate through power, so as to drive the clamping body 2111 to move in opposite directions, thereby clamping the rivets in the clamping opening 21111.

[0077] Immediately afterwards, the lifting frame 2114 includes a base 21141, a vertically arranged lifting guide rod 21142 installed on the base 21141, and a sliding seat 21143 slidably arranged on the lifting guide rod 21142.

[0078] In this embodiment, under the power action of the lifting driving member 212, the sliding seat 21143 is driven to move up and down along the arrangement direction of the lifting guide rod 21142. When the sliding seat 21143 moves upwards, the rivets on the clamping body 2111 can be sent to the power carrying part 13.

[0079] As shown Figure 7 in FIG. Figure 7 , the lifting driving member 212 includes a vertical rack 2121 mounted on the sliding seat 21143, a horizontal rack 2122 elastically connected to the base 21141 and connected to the linkage blocking member 213, a first bevel gear 2123 meshing with one side of the horizontal rack 2122, and a second bevel gear 2124 meshing with one side of the vertical rack 2121. The first bevel gear 2123 and the second bevel gear 2124 mesh with each other.

[0080] In this embodiment, when the trigger member 135 on the power carrying portion 13 contacts and drives the linkage blocking member 213 to move, the horizontal rack 2122 will elastically contract and store elastic potential energy. And the horizontal rack 2122 drives the vertical rack 2121 to move upward through the meshing transmission between the first bevel gear 2123 and the second bevel gear 2124, so as to drive the clamping body 2111 carrying the rivet to move upward and be positioned on the power carrying portion 3 for rivet installation. After the clamping is completed, the linkage blocking member 213 will leave the linkage blocking member 213 under the guiding action of the guiding member 214, so that the horizontal rack 2122 returns to its original position, and the linkage clamping body 2111 returns.

[0081] Preferably, in order to ensure that the horizontal rack 2122 can automatically return to its original position after the linkage blocking member 213 leaves the trigger member 135, the lifting driving member 212 further includes a horizontal guide rod 2125 mounted on the base 21141 and slidably connected to the horizontal rack 2122, and a energy storage spring 2126 connecting the horizontal guide rod 2125 and the horizontal rack 2122.

[0082] As shown Figure 8 in FIG. Figure 8 , the linkage blocking member 213 includes a lower connecting member 2131 connected to the lifting driving member 212, an upper connecting member 2132 slidably connected to the top of the lower connecting member 2131, and a guiding block 2133 mounted on one side of the upper connecting member 2132. The guiding block 2133 is slidably arranged in the guiding member 214.

[0083] In this embodiment, by utilizing the guiding action of the guiding member 214, when the linkage blocking member 213 drives the lifting driving member 212 to lift the clamping body 2111, the upper connecting member 2132 will contact the trigger member 135. As the upper connecting member 2132 moves and the guiding block 2133 moves in the guiding member 214, the guiding block 2133 will pull the upper connecting member 2132 away from the trigger member 135. After the separation, under the elastic force of the energy storage spring 2126, the guiding block 2133 returns along the original path, thereby driving the upper connecting member 2132 to also return to the initial position for reloading the rivet.

[0084] Furthermore, the guide member 214 includes a guide body 2141 , a linkage guide rail 2142 disposed at one end of the guide body 214 , and a withdrawal guide rail 2143 connected to the linkage guide rail 2142 and arranged in a direction away from the trigger member 135 .

[0085] In this embodiment, when the guide block 2133 moves, when the guide block 2133 is in the linkage guide rail 2142, the upper connecting block 2132 will contact and link with the trigger member 135. When the guide block 2133 is located in the evacuation guide rail 2143, the upper connecting block 2132 leaves the trigger member 135, and as the trigger member 135 leaves the linkage range, the guide block 2133 returns to its original position.

[0086] like Figure 9 As shown, the material guiding assembly 22 includes a transfer rail 221 installed on the base 21141 for conveying the rivet head, a transverse pushing motor 222 arranged on the transfer rail 221, a clamping drive member 223 installed at the power end of the transverse pushing motor 222, a traction motor 224 installed at the power end of the clamping drive member 223, and an L-shaped clamp seat 225 installed at the power end of the traction motor 224.

[0087] In this embodiment, the L-shaped clamp seat 225 is driven to move to the two sides of the rivet to be clamped on both sides of the transfer guide rail 221 by a lateral pushing motor 222, which is preferably a push rod motor, and the clamping drive 223 drives the L-shaped clamp seat 225 to clamp the two sides of the rivet head, and the rivet is lifted by a traction motor 224, which is preferably a push rod motor, and the clamped rivet is again guided to the clamping body 2111 by the lateral pushing motor 222. After being placed in the clamping body 2111, the clamping drive 223 drives the L-shaped clamp seat 225 to release the rivet, and then controls the return, and clamps and conveys the rivet in a reciprocating manner.

[0088] It should be noted that in order to more conveniently realize the clamping and loosening of rivets by the L-shaped clamping seat 225, the clamping drive 223 includes a clamping drive seat 2231, a power screw 2232 installed on the clamping drive seat 2231, and a clamping drive motor installed on one side of the clamping drive seat 2231 and connected to the power screw 2232. The top of the traction motor 224 is connected to the power screw 2232 with reverse threads.

[0089] In this embodiment, the power screw 2232 is driven to rotate by a clamping drive motor, which is preferably a servo motor, so as to drive the L-shaped clamp seat 225 to move in opposite directions, thereby achieving clamping and loosening of the rivet.

[0090] like Figure 10As shown, the sand pushing part 3 includes: a sand box 31; an elastic spacer 32 sleeved inside the sand box 31; and a pushing assembly 33 arranged at the bottom of the elastic spacer 32; a dust leakage channel 34 corresponding to the pushing assembly 33 is formed on the elastic spacer 32; the pushing assembly 43 obliquely reciprocates to push the sand body inside the elastic spacer 32 in the opposite direction of the movement of the power carrying part 3.

[0091] In this embodiment, when the sand pushing part 3 performs the sand pushing action, it will place a sand body in the sand box 31 that can completely submerge the transferred rivets, and the sand body is placed on the elastic spacer 32 in the sand box 31. When the power carrying part 3 carries the rivets past, the pushing assembly 33 will push the sand body inside the elastic spacer 32 at the bottom of the elastic spacer 32, so that under the isolation of the elastic spacer 32, when the rivet is inclined downward or upward, a moving force of the sand body is formed, acting on the bottom side surface or the top side surface of the rivet, thereby improving the polishing efficiency of the rivet.

[0092] It should be noted that by using the elastic spacer 32 installed on the top of the pushing assembly 33, when the pushing assembly 33 moves up and down reciprocally in the opposite direction of the movement of the pushing assembly 33 towards the rivet along the arrangement direction of the sand box 31 to push the sand body, it solves the problem that the pushing assembly 33 moves horizontally, and there are fixed gaps on the pushing assembly 33, resulting in the leakage of the sand body through the fixed gaps on the pushing assembly 33.

[0093] It is also worth noting that when repeatedly polishing the rivet, when the sand body rubs against the surface of the rivet, the surface particles of the rivet will fall off. Therefore, during the process of the pushing assembly 33 pushing the sand body, the sand body will be continuously turned over, so that the ash debris falling off the rivet is separated from the sand body through the dust leakage channel 34, thus avoiding affecting the polishing effect during the polishing process of other passing rivets.

[0094] As Figure 11 shown, the pushing assembly 33 includes: a pushing seat 331 arranged along the arrangement direction of the sand box 31; a pushing component 332 installed at the bottom of the pushing seat 331; and a power component 333 for driving the pushing component 332 to push the pushing seat 331.

[0095] In this embodiment, when the pushing assembly 33 performs the pushing action, the power component 333 will provide the pushing power for the pushing component 332, so that the pushing seat 331 can push the sand body to separately process the sand body moving obliquely downward or obliquely upward.

[0096] As Figure 12As shown, the pushing assembly 332 includes: a guide space 3321 arranged at the bottom of the ejector seat 331 along the width direction of the sand box 31; and an eccentric driving member 3322 arranged in the guide space 3321; the eccentric driving member 3322 drives the ejector seat 331 in the guide space 3321 to perform a sand pushing action.

[0097] In this embodiment, the eccentric driving member 3322 will rotate eccentrically under the power of the power member 333, and in the process of eccentric rotation, its top end will move and guide the pushing seat 331 in the guide space 3321 at the bottom of the pushing seat 331, so that the pushing seat 331 can be driven to push the sand body at the contact position corresponding to the rivet obliquely upward when the rivet moves obliquely downward, thereby increasing friction, and when the rivet moves obliquely downward, it will also drive the pushing seat 331 to move downward, so that the lifted sand body will return under the action of gravity when the pushing seat 331 is evacuated, and when the sand body returns, it will form a reverse effect on the upper surface of the rivet moving obliquely upward, thereby further improving the polishing effect.

[0098] It should be noted that the power member 333 includes an eccentric gear 3331 eccentrically mounted on the eccentric driving member 3322 , an intermediate gear 3332 connecting two adjacent groups of eccentric gears 3331 , and a power motor 3333 for driving one group of the intermediate gears 3332 to rotate.

[0099] In this embodiment, the intermediate gear 43332 is driven to rotate by the power motor 3333, which is preferably a servo motor, so that the eccentric gears 3331 of each group are driven to rotate through the intermediate gear 3332, thereby driving the eccentric driving member 3322 to move.

[0100] like Figure 12 As shown, the guide space 3321 includes: a sliding groove 33211 for inserting the eccentric driving member 3322; and a lifting guide groove 33212 obliquely arranged in the groove 33211; the top end of the eccentric driving member 3322 is adapted to be carded in the lifting guide groove 33212.

[0101] In this embodiment, during the process that the eccentric driving member 3322 moves within the guiding space 3321 to drive the pushing seat 331, the eccentric driving member 3322 eccentrically rotates under the driving force of the power member 333. As a result, during the process that the eccentric driving member 3322 moves within the sliding groove body 33211, it can only drive the pushing seat 331 to reciprocate back and forth along the arrangement direction of the sand box 31. Moreover, when the eccentric driving member 3322 drives the pushing seat 331 to move along the arrangement direction of the sand box 31, the top end of the eccentric driving member 3322 will also move within the lifting guiding groove 33212 obliquely arranged on the inner wall of the sliding groove body 33211, and then push the pushing seat 331 to move up and down. Thus, in the area below the guiding bracket 121 where the rivet moves obliquely downward, when the rivet is moving obliquely downward, the pushing seat 331 will push the sand body in the reverse direction of the movement of the rivet, so that the sand body can fully polish the bottom surface of the rivet when it moves downward. And when the rivet reaches the position of the continuously rising guiding bracket 121, the pushing seat 331 will continuously move downward. And when moving downward, the sand body is affected by gravity and impacts the upper surface of the rising rivet, thereby improving the polishing effect on the upper surface of the rivet.

[0102] It should be added that, as Figure 12 shown, a positioning block 33221 that is rotationally matched with the lifting guiding groove 33212 is provided at the top end of the eccentric driving member 3322.

[0103] In this embodiment, during the eccentric rotation of the eccentric driving member 3322, the cooperation between the positioning block 33221 and the lifting guiding groove 33212 will drive the pushing seat 331 to reciprocate up and down.

[0104] As Figure 12 shown, the pushing seat 331 includes: a seat body 3311; a dust leakage space 3312 penetrating through both sides of the seat body 3311 along the width direction of the sand box 31; and a dust filtering member 3313 arranged at the top of the dust leakage space 3312 and corresponding to the dust leakage channel 34.

[0105] In this embodiment, during the process that the pushing seat 331 pushes the elastic spacer 32, it will stir the sand body, so that the rivet ash chips polished off will enter the dust leakage space 3312 through the dust leakage channel 34, and by using the dust filtering member 3313 to isolate the sand body, the dust leakage space 3312 is used to collect the sand body.

[0106] As Figure 10As shown, the sand pushing part 3 also includes: an air inlet channel 35 arranged on one side of the sand box 31; and an exhaust channel 36 arranged on the side opposite to the air inlet channel 35; when the ash leakage space 3312 drops to a position corresponding to the air inlet channel 35, the air inlet channel 35 blows out the filtered ash accumulated in the ash leakage space 3312 from the exhaust channel 46.

[0107] In this embodiment, during the process of collecting the ash chips leaked from the turned sand body in the ash leakage space 3312, when the push-up seat 331 descends to make the two ends of the ash leakage space 3312 correspond to the air inlet channel 35 and the exhaust channel 36 respectively, the air inlet channel 35 blows up the ash leakage space 3312, and the ash chips are discharged from the ash leakage space 3312 through the exhaust channel 36 at the other end of the ash leakage space 3312.

[0108] Embodiment 2

[0109] like Figure 15 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0110] The material discharge unit 4 includes: an output belt 41 , a material discharge seat 42 arranged at one side of the output belt 41 , an ejection cylinder 43 elastically connected to the material discharge seat 42 , and a resisting member 44 installed at one side of the ejection cylinder 43 .

[0111] In this embodiment, when the polished rivet is transported to the unloading unit 4 area by the power carrying part 13, it will contact the resistance part 44, and the pushing cylinder 43 will be positioned to the power carrying part 13 during the continuous up and down reciprocating movement. As the pushing cylinder 43 continues to rise, the pressing seat 1345 will be pushed inward to shrink, and the clamping seat 1344 will be linked to release the rivet. The falling rivet enters into the pushing cylinder 43, and when the pushing cylinder 43 falls to a predetermined height at the top of the output belt 41, the bottom of the pushing cylinder 43 opens, and the rivet falls onto the output belt 41 and is output to the outside.

[0112] It is worth noting that in the process of the pushing cylinder 43 moving up and down, it will be pushed by the power carrying part 13 and will gradually move a distance in the moving direction of the power carrying part 13. This distance can realize the re-positioning of the continuously moving power carrying part 13 on the guide part 12, thereby ensuring that the power carrying part 13 can be within the positioning range of the transfer unit 2 when the rivets are loaded subsequently.

[0113] like Figure 15 and 16As shown, the ejection cylinder 43 includes an ejection cylinder 431, a power stopper 432 arranged at the bottom of the pushing cylinder 431, an ejection motor 433 installed on one side of the ejection cylinder 431, and an elastic limiter 434 elastically connecting the ejection cylinder 431 with the material discharge seat 43.

[0114] In this embodiment, the pushing motor 433, which is preferably a push rod motor, drives the pushing cylinder 431 to move up and down reciprocatingly, so that the pushing cylinder 431 pushes the pressure seat 1345, thereby allowing the clamping seat 1344 to release the rivet, and in the process of the pushing cylinder 431 descending, the power stopper 432 opens the pushing cylinder 431, and the rivet falls smoothly on the output belt 41, thereby avoiding the rivet being damaged by impact due to direct release of the rivet, and as the pushing cylinder 431 follows the movement of the power carrying part 13, when it reaches the predetermined stroke of the elastic limit member 434, the resistance member 44 continues to move downward following the downward movement of the pushing motor 433, and disengages from the power carrying part 13, thereby achieving the repositioning of the power carrying part 13.

[0115] Furthermore, the power stopper 432 is arranged on the support seats 4321 on both sides of the output belt 41, the movable slide rods 4322 installed on both sides of the push-pull cylinder 431, the support block 4323 slidably installed on the movable slide rod 4322 and with one end blocking the bottom of the push-pull cylinder 431, and the support spring 4324 connecting the support block 4323 with the push-pull cylinder 431.

[0116] In this embodiment, through the elastic force of the support spring 4324, one end of the support block 4323 is blocked at the bottom of the pushing cylinder 431. As the pushing cylinder 431 moves downward, the support block 4323 is positioned toward both sides by the support seat 4321, so that the bottom space of the pushing cylinder 431 is opened, and the rivet falls onto the output belt 41.

[0117] It should be noted that, in order to ensure that the bottom of the ejecting cylinder 431 opens more quickly, the end of the ejecting block 4323 arranged on one side of the bottom of the ejecting cylinder 431 is set at the tiger's mouth 43231.

[0118] Furthermore, the elastic limiting member 434 includes a limiting slide rod 4341 installed on the material discharge seat 42 and slidably connected to the pushing motor 433, a limiting spring 4342 connecting the pushing motor 433 and the material discharge seat 42, and a limiting seat 4343 arranged on both sides of the limiting slide rod 4341.

[0119] In this embodiment, when the ejection cylinder 431 moves, when the ejection motor 433 contacts the limit seat 4343 , the position of the power carrying part 13 is locked until the resisting member 44 leaves.

[0120] Embodiment 3

[0121] like Figure 17 As shown, a continuous high-precision fastener surface automatic polishing production process is characterized by comprising the following steps:

[0122] Step 1: Workpiece turning process: the feeding assembly 21 clamps and turns the rivet conveyed by the material guiding assembly 22 so that the opening 20 on the rivet body 10 is arranged upward;

[0123] Step 2: Positioning and clamping process: under the guidance of the guide part 12, the power carrying part 13 makes the trigger member 135 contact the feeding assembly 21 and move with the feeding assembly 21. At the same time, the feeding assembly 21 pushes the opening 20 of the rivet to the power carrying part 13 for clamping, and withdraws from the power carrying part 13 after the clamping is completed;

[0124] Step 3, rivet polishing process, the power carrying part 13 carries the rivet while rotating and moving in the sand body of the sand pushing part 3 along the wave-shaped guide direction of the guide part 12, and the sand pushing part 3 performs all-round polishing on the rivet by reciprocating sand pushing action up and down along the wave-shaped guide direction;

[0125] Step 4: blanking and positioning process: the power carrying part 13 carries the polished rivet to the blanking unit 4, and the gradually upwardly moving abutment 44 contacts the power carrying part 13 and moves along with the power carrying part 13, while the ejection cylinder 43 moves upward and links the power carrying part 13, so that the rivet falls into the ejection cylinder 43;

[0126] Step 5, rivet output process, the ejector cylinder 43 continues to move downward and releases the rivet after reaching a predetermined height above the output belt 41, and the rivet falls onto the output belt 41 for output.

[0127] It should be noted that, by utilizing the workpiece flipping process, the rivet originally with its head facing upward can be adjusted to face downward, so as to facilitate the clamping of the opening on the rivet body 10 on the power carrying part 13. When the rivet is clamped to the power carrying part 13 through the positioning and clamping process, the feeding assembly 21 follows the power carrying part 13 to move and feed the material, so as to avoid the rivet being unable to accurately match the power carrying part 13 to complete the clamping due to the inaccurate movement position of the power carrying part 13 on the guide part 12. Through the rivet polishing process, the upper and lower parts of the rivet are made to be more stable. Under the dynamic action of the sand pushing part 3 on the sand body, the polishing strength of the sand body on the upper and lower sides of the rivet can be enhanced, thereby achieving rapid polishing processing. Through the coordination of the blanking positioning process and the rivet output process, it can be achieved that after the rivet is polished, the rivet on the power carrying part 13 can be removed by the up and down movement of the pushing cylinder 43, and the rivet is carried by the pushing cylinder 43 and released smoothly on the output belt 41, which solves the problem of rivet scratches caused by the rivet hitting the output belt 41 due to direct release of the rivet, affecting the glossiness of the rivet after polishing.

[0128] like Figure 15 and 16 As shown, after step 4, the following steps are further included:

[0129] In the repositioning process, the ejector cylinder 43 continues to move downward with the rivet, and the abutment member 44 continues to move downward when it reaches the end of the stroke. When the abutment member 44 leaves the power carrying part 13, the positioned power carrying part 13 resumes its movement on the guide part 12 and circulates to the transfer unit 2 for re-clamping.

[0130] In this embodiment, when the rivet is removed from the power carrying part 13 by the pushing cylinder 43, the rivet will enter the pushing cylinder 431, and when the pushing cylinder 431 moves downward, the supporting block 4323 contacts the supporting seat 4321, so that the bottom of the pushing cylinder 431 is opened, and the rivet falls onto the output belt 41 for external output. At the same time, the power carrying part 13 that continues to move will carry the resistance member 44 and continue to move along the stroke direction of the resistance member 44, and when the resistance member 44 reaches the stroke terminal (that is, the pushing motor 43 resists the limit seat 4343), the restricted power carrying belt 13 temporarily stops moving until the resistance member 44 falls and leaves the power carrying part 13, and the power carrying part 13 continues to move on the guide part 12 to reach the transfer unit 2 to re-clamp the rivet for polishing.

[0131] like Figure 9 As shown, before the workpiece flipping process, it also includes:

[0132] In the rivet feeding process, the clamping driving member 233 drives the L-shaped clamp seat 225 to clamp both sides of the head of the rivet on the transfer guide rail 221. The traction motor 224 drives the clamped rivet to move upward and separate from the transfer guide rail 221. After the transverse pushing motor 222 pushes the rivet into the material guiding clamp seat 211, it returns to the original position to pick up the rivet again.

[0133] In this embodiment, through the rivet feeding process, the rivets with their heads facing upward that are continuously conveyed can be reciprocally clamped and fed to the material guiding clamp seat 211, so as to ensure that the material guiding clamp seat 211 continuously clamps the rivets on the power carrying part 13.

[0134] As Figure 2-7 shown, during the process of the feeding assembly 21 pushing the rivet to the power carrying part 13, it further includes:

[0135] The triggering member 135 pushes the linkage blocking member 213, and the linkage blocking member 213 drives the material guiding clamp seat 211 through the lifting driving member 212. The material guiding clamp seat 211 pushes the rivet with its hollow opening facing upward into the power carrying part 13. After the loading is completed, the material guiding clamp seat 211 releases the rivet, the linkage blocking member 213 leaves the triggering member 135, and the lifting driving member 212 drives the linkage blocking member 213 back to the original position.

[0136] In this embodiment, during the process of feeding the rivet to the power carrying part 13, the power carrying part 135 drives the triggering member 135 to move along the guiding direction of the guiding part 12 together. The triggering member 135 will contact the linkage blocking member 213 on the material guiding assembly 21, thereby driving the linkage blocking member 213 to move together. And during the movement of the linkage blocking member 213, it will drive the up and down movement of the material guiding clamp seat 211 through the lifting driving member 212. And during the upward movement of the material guiding clamp seat 211, the rivet clamped in the material guiding clamp seat 211 will be conveyed to the corresponding clamping position on the power carrying part 13. After the clamping is completed, while the material guiding clamp seat 211 withdraws from the rivet, it leaves the power carrying part 13, thus completing the power clamping of the rivet on the power carrying part.

[0137] As Figure 8 shown, during the process of the lifting driving member 212 driving the material guiding clamp seat 211 in a linkage manner, it further includes:

[0138] The moving linkage blocking member 213 drives the transverse rack 2122 to move synchronously. The transverse rack 2122 drives the vertical rack 2121 through the transmission of the first bevel gear 2123 and the second bevel gear 2124, so that the vertical rack 2121 drives the material guiding clamp seat 211 to move up and down reciprocally.

[0139] In this embodiment, during the driving process of the lifting driving part 212 on the material guiding clamp seat 211, the transverse rack 2122 under the power action of the linkage stopper 213 moves along with it, and drives the vertical rack 2121 through the first helical gear 2123 and the second helical gear 2124, so that the vertical rack 2121 moves up and down, thereby driving the material guiding clamp seat 211 to move up and down, and guiding and positioning the rivet to be carried into the power carrying part 13.

[0140] As Figure 3-5 , 7, and 13 show, during the process of the power carrying part 13 clamping the moving rivet of the feeding component 21, it further includes:

[0141] The upward moving limiting cylinder 2116 pushes against the pressing seat 1345, causing the clamping seat 1344 to contract to a size smaller than the inner diameter of the opening 20 of the rivet body 10. When the material guiding clamp seat 211 that continues to move upward presses the end wall of the hollow opening of the rivet against the buckling disk 1342 and then withdraws from the rivet on both sides, the clamping spring 1347 pushes the clamping seat 1344 to both sides, causing the clamping seat 1344 to be pressed tightly against the inner wall of the hollow opening of the rivet.

[0142] In this embodiment, when the power carrying part 13 clamps the rivet, the rising material guiding clamp seat 211 will push against the pressing seat 1345 through the limiting cylinder 2116, causing the pressing seat 1345 to drive the clamping seat 1344 to contract inward, so as to be smaller than the inner diameter of the hollow opening of the rivet. Thus, the material guiding clamp seat 211 that continues to move upward aligns the hollow opening of the rivet with the clamping seat 1344 and inserts it. And after insertion, it will push the hollow opening onto the buckling disk 1342 to achieve the sealing of the hollow opening. At the same time, when the material guiding clamp seat 211 leaves, the clamping spring 1347 pushes the clamping seat 1344 to support against the inner wall of the hollow opening, thereby completing the automatic clamping of the rivet.

[0143] As Figure 7 and 8 show, during the process of the linkage stopper 213 controlling to leave the trigger part 135, it further includes:

[0144] The upper connecting piece 2132 moves along with the trigger part 135 in the arrangement direction of the linkage guide rail 2142 under the pushing force of the trigger part 135. At the same time, the lower connecting piece 2131 drives the lifting driving part 212 to continuously move the material guiding clamp seat 211 upward to transport the rivet. When the continuously moving upper connecting piece 2132 is further guided by the withdrawal guide rail 2143, the upper connecting piece 2132 separates from the trigger part 135. While the power carrying part 13 continues to move, the elastic action of the lifting driving part 212 drives the lower connecting piece 2131 and the upper connecting piece 2132 to return to the initial position synchronously.

[0145] In this embodiment, when the upper connecting member 2132 follows the trigger member 135 under the guidance of the linkage guide rail 2142, the material guide clamp seat 211 can be lifted, and when the upper connecting member 2132 moves to the evacuation guide rail 21434, the upper connecting member 2132 leaves the trigger member 135, and the trigger member 135 continues to move with the power carrying part 13, and the upper connecting member 2132 will return to the original position under the action of the lifting drive member 212, and at the same time, the material guide clamp seat 211 also returns to the original position for reciprocating feeding and clamping of rivets.

[0146] like Figure 15 and 16 As shown, the process in which the ejector cylinder 43 controls the release of the rivet also includes:

[0147] The supporting block 4323 that moves downward with the pushing cylinder 431 is supported by the supporting seats 4321 on both sides of the output belt 41, and the supporting block 4323 on one side of the bottom of the pushing cylinder 431 opens to both sides, and the rivet falls onto the output belt 41 from the channel formed by the opened tiger's mouth 43231.

[0148] In this embodiment, after the pushing cylinder 43 removes the rivet behind the pushing power carrying part 13, the pushing cylinder body 431 moves downward, and the supporting block 4323 moves to both sides under the action of the supporting seat 4321, thereby opening the bottom jaws 43231 of the pushing cylinder body 431, so that the rivet is released from the jaws 43231, solving the technical problem of directly releasing the rivet from a high place, causing the rivet to hit the output belt 41 and be damaged.

[0149] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous high-precision fastener surface automatic polishing production line, comprising: A rivet guiding unit for annularly cyclically clamping and guiding the rivets in a wave direction; A transfer unit arranged at one end of the rivet guide unit and used for positioning and clamping the conveyed rivet to the rivet guide unit; A sand pushing portion arranged below the guide waveform of the rivet guide unit and used for pushing the sand body toward the rivet surface; as well as A material removal unit provided at one side of the transfer unit and used for removing the rivets polished on the rivet guide unit; The rivet guiding unit comprises: frame; A guide portion mounted on the frame; and A power carrying part mounted on the guide part; The power carrying part carries the rivet along the wave-shaped guiding direction of the guiding part and passes through the moving unit, the sand pushing part and the unloading unit respectively; The power carrying unit comprises: Power seat; Power wheels arranged on both sides of the power seat and clamped on the guide bracket; A clamping assembly arranged at the bottom of the power seat; A driving member for driving the clamping assembly and the power wheel to rotate; and A triggering member arranged at one side of the power base and corresponding to the moving unit and the unloading unit respectively; The clamping assembly comprises: A mounting plate disposed at the bottom of the power seat and connected to the rotating shaft; A buckle plate arranged on the mounting plate; A moving channel provided on the deduction plate; Press seats arranged on both sides of the mounting plate; A clamping seat provided at the bottom of the buckle plate; A linkage rod passing through the moving channel and connecting the clamping seat and the pressing seat respectively; and A clamping spring connected between the clamping seats; The mobile unit comprises: a feeding assembly; and A material guiding assembly arranged on one side of the material feeding assembly; The material guide assembly guides the rivet with the head facing upward to the feeding assembly, and the feeding assembly switches the head facing downward, and when the triggering member arrives, the feeding assembly is linked to guide the rivet to the power carrying part; The feeding assembly comprises: Symmetrically arranged material guide clamps; A lifting drive member arranged on one side of the material guiding clamp seat; A linkage stopper installed on the lifting drive member and corresponding to the trigger member; and A guide member is arranged on one side of the linkage stopper.

2. A continuous high-precision fastener surface automatic polishing production line according to claim 1, characterized in that: The material guide clamp seat comprises: A clamping body with a clamping opening on the inner side; A rotating frame arranged on one side of the clamping body; A clamping driving member arranged on the rotating frame and driving the clamping bodies to move toward each other; A lifting frame arranged on one side of the rotating frame; A rotating motor installed on the lifting frame and having a power end connected to the rotating frame; and A limiting cylinder is arranged on the clamping body.

3. A continuous high-precision fastener surface automatic polishing production line according to claim 2, characterized in that: The linkage stopper comprises: A lower connecting member connected to the lifting drive member; An upper connecting member slidably connected to the top end of the lower connecting member; and A guide block installed on one side of the upper connecting member; The guide block is slidably arranged in the guide member.

4. A continuous high-precision fastener surface automatic polishing production line according to claim 3, characterized in that: The unloading unit comprises: Output belt; A material unloading seat arranged on one side of the output belt; A push-up cylinder elastically connected to the feeder seat; and A resistance member installed on one side of the ejection cylinder; The polished rivet is brought into contact with the abutment by the power-carrying part, and the ejector cylinder moves up and down reciprocatingly to be positioned at the power-carrying part for clamping.

5. The process for polishing fasteners by a continuous high-precision automatic surface polishing production line for fasteners according to claim 4, characterized in that, The following steps are involved: Step 1: Workpiece turning process: the feeding assembly clamps and turns the rivet conveyed by the material guiding assembly so that the opening on the rivet body is arranged upward; Step 2: Positioning and clamping process: under the guidance of the guide part, the power carrying part makes the trigger contact the feeding component and move with the feeding component, and at the same time, the feeding component pushes the opening of the rivet to the power carrying part for clamping, and withdraws from the power carrying part after the clamping is completed; Step 3, rivet polishing process, the power carrying part carries the rivet while rotating and moving in the sand body of the sand pushing part along the wave-shaped guide direction of the guide part, and the sand pushing part performs all-round polishing on the rivet by reciprocating sand pushing action up and down along the wave-shaped guide direction; Step 4: blanking and positioning process: the power carrier carries the polished rivet to the blanking unit, and the gradually upward-moving abutment contacts the power carrier and moves along with the power carrier, while the ejector cylinder moves upward and links the power carrier to make the rivet fall into the ejector cylinder; Step 5: In the rivet output process, the ejector cylinder continues to move downward and releases the rivet after reaching a predetermined height above the output belt, and the rivet falls onto the output belt for output.

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