A wire-pulling type through-hole polishing machine

Abstract

The present invention relates to a wire-drawing type through-hole polishing machine, which includes a frame. A material transfer channel is provided on the frame. The material transfer channel is provided with a loading station and a polishing station. A rotating material supporting carrier for placing workpieces to be polished is movably arranged in the material transfer channel. A reciprocating driving mechanism for controlling the reciprocating movement of the rotating material supporting carrier between the loading station and the polishing station is provided on the frame. A workpiece feeding mechanism for conveying the workpieces to be polished to the rotating material supporting carrier is arranged on one side of the loading station. A wire threading and tightening mechanism for passing a wire through the through-hole of the workpiece and protruding upward and tightening it is provided below the polishing station. A wire taking and clamping mechanism for grasping and clamping the wire is provided above the polishing station. A wire pushing mechanism for pushing the wire to polish the through-hole of the workpiece is arranged on one side of the wire taking and clamping mechanism. The present invention adopts a wire-drawing polishing method, which can realize an automatic through-hole polishing production method for workpiece loading, workpiece transfer, wire perforation, wire clamping, and wire pushing.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing equipment, and particularly relates to a wire-pulling through-hole polishing machine. Background Art

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of a workpiece to obtain a bright and flat surface. After some workpieces are stamped, burrs exist around the formed through-holes, which cause adverse effects on the subsequent production or use process of the workpieces. Therefore, it is necessary to polish the through-holes. At present, the manual polishing method is generally adopted, and workers manually polish the through-holes with polishing tools. Such a production method has low efficiency and consumes labor, resulting in high production costs for enterprises. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a wire-pulling through-hole polishing machine, which adopts a wire-pulling polishing method to realize an automated through-hole polishing production method for workpiece loading, workpiece transfer, wire piercing, wire clamping, and wire pushing.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A wire-pulling through-hole polishing machine includes a frame. A material transfer channel is provided on the frame. The material transfer channel has a loading station and a polishing station. A rotating material carrier for placing the workpiece to be polished is movably provided in the material transfer channel. A reciprocating driving mechanism for controlling the reciprocating movement of the rotating material carrier between the loading station and the polishing station is provided on the frame. A workpiece feeding mechanism for conveying the workpiece to be polished to the rotating material carrier is provided on one side of the loading station. A wire threading and tightening mechanism for passing a wire through the through-hole of the workpiece and protruding upward and tightening it is provided below the polishing station. A wire picking and clamping mechanism for grasping and clamping the wire is provided above the polishing station. A wire pushing mechanism for pushing the wire to polish the through-hole of the workpiece is provided on one side of the wire picking and clamping mechanism.

[0006] As a preferred solution, the rotating material carrier includes a material supporting base movably provided in the material transfer channel. A turntable is provided on the material supporting base. Oppositely arranged first and second material supporting members are provided on the turntable. A material supporting groove for supporting the workpiece is formed between the first and second material supporting members.

[0007] As a preferred solution, one end of the first material supporting member is rotatably connected to the turntable through a first pin shaft, and one end of the second material supporting member is rotatably connected to the turntable through a second pin shaft. A first limiting pin is provided at the end of the first material supporting member far from the first pin shaft, and a first arc-shaped groove for the first limiting pin to extend downward is provided on the turntable. A second limiting pin is provided at the end of the second material supporting member far from the second pin shaft, and a second arc-shaped groove for the second limiting pin to extend downward is provided on the turntable. A first driving component for controlling the first material supporting member to rotate inward around the first pin shaft and a second driving component for controlling the second material supporting member to rotate inward around the second pin shaft are provided on the machine frame.

[0008] As a preferred solution, the first driving component includes a first pushing block and a first driving cylinder for controlling the movement of the first pushing block. The moving direction of the first pushing block is the same as the extending direction of the material transfer channel. The first pushing block has a lateral pushing inclined surface corresponding to the first limiting pin. The second driving component includes a second pushing block and a second driving cylinder for controlling the movement of the second pushing block. The moving direction of the second pushing block is perpendicular to the extending direction of the material transfer channel. During operation, the lateral pushing inclined surface on the first pushing block presses against the first limiting pin to make the first material supporting member rotate inward around the first pin shaft, and the second pushing block presses against the second limiting pin to make the second material supporting member rotate inward around the second pin shaft.

[0009] As a preferred solution, a first guiding block for making the first material supporting member rotate outward around the first pin shaft and a second guiding block for making the second material supporting member rotate outward around the second pin shaft are provided in the material transfer channel. The first guiding block and the second guiding block are oppositely arranged between the feeding station and the polishing station. A first guiding inclined surface is provided on one side of the first guiding block far from the second guiding block, and a second guiding inclined surface is provided on one side of the second guiding block far from the first guiding block. The first guiding inclined surface extends from the polishing station to the feeding station in a direction away from the second guiding block, and the second guiding inclined surface extends from the polishing station to the feeding station in a direction away from the first guiding block.

[0010] As a preferred solution, a first installation groove for installing the first material supporting member and a second installation groove for installing the second material supporting member are provided on the turntable. The first material supporting member is rotatably arranged in the first installation groove, and the second material supporting member is rotatably arranged in the second installation groove. A first elastic protrusion is provided at the end of the first material supporting member close to the first limiting pin, and a first inner concave portion and a first outer concave portion corresponding to the first elastic protrusion are sequentially provided on the side wall surface of the first installation groove along the rotation direction of the first material supporting member. A second elastic protrusion is provided at the end of the second material supporting member close to the second limiting pin, and a second inner concave portion and a second outer concave portion corresponding to the second elastic protrusion are sequentially provided on the side wall surface of the second installation groove along the rotation direction of the second material supporting member.

[0011] As a preferred solution, the material supporting base is provided with a transmission assembly for driving the turntable, the transmission assembly includes a transmission shaft and a transmission gear, the transmission gear is connected to the turntable, the upper end of the transmission shaft is provided with a driving gear meshing with the transmission gear, the lower end of the transmission shaft is provided with a worm gear, and a worm for controlling the rotation of the worm gear and a rotary drive motor for controlling the rotation of the worm gear are provided below the material moving channel, the reciprocating drive mechanism includes a screw and a reciprocating drive motor for controlling the rotation of the screw gear, and the material supporting base is threadedly connected to the screw gear.

[0012] As a preferred solution, the workpiece feeding mechanism includes a workpiece clamp, a workpiece feeding slide and a workpiece feeding drive unit for controlling the movement of the workpiece feeding slide. The workpiece feeding slide is located below the workpiece clamp, and the workpiece feeding slide is provided with a receiving trough for receiving the workpiece output by the workpiece clamp and a workpiece lifting assembly for pushing the workpiece in the receiving trough upward to the supporting trough. The workpiece lifting assembly is arranged below the receiving trough. The workpiece lifting assembly includes a workpiece lifting frame and a workpiece lifting drive unit for controlling the up and down movement of the workpiece lifting frame. The bottom of the receiving trough has a lifting clearance opening for the workpiece lifting frame to pass upward.

[0013] As a preferred solution, the wire threading and tightening mechanism includes a wire feeding assembly, a wire pulling assembly, and a wire pushing assembly for lifting the wire between the wire feeding assembly and the wire pulling assembly upward and passing it through the through hole of the workpiece. The wire pushing assembly is arranged between the wire feeding assembly and the wire pulling assembly, and a wire feeding guide wheel and a wire pulling guide wheel are respectively provided on both sides of the upper end of the wire pushing assembly for guiding the wire. A wire feeding clamping assembly for clamping the wire is provided between the wire feeding guide wheel and the wire feeding assembly, and a wire pulling clamping assembly for clamping the wire is provided between the wire pulling guide wheel and the wire pulling assembly. An elastic wire feeding tensioning assembly for tensioning the wire between the wire feeding guide wheel and the wire feeding clamping assembly and an elastic wire pulling tensioning assembly for tensioning the wire between the wire pulling guide wheel and the wire pulling clamping assembly are provided on the frame.

[0014] As a preferred solution, the wire pushing mechanism includes a wire pushing base and a reciprocating drive device for controlling the lateral reciprocating movement of the wire pushing base. The wire pushing base is provided with a telescopic rod extending toward the polishing station and a wire pushing drive unit for controlling the movement of the telescopic rod. The protruding end of the telescopic rod is provided with a wire pushing wheel for pushing the wire, and the wire pushing base is provided with a locking assembly for locking the telescopic rod.

[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, by setting a material transfer channel, a rotating material support carrier, a reciprocating drive mechanism, a workpiece feeding mechanism, a threading and tightening mechanism, a wire taking and clamping mechanism and a wire pushing mechanism, the material transfer channel is provided with a loading station and a polishing station. The workpiece feeding mechanism transports the workpiece to the rotating material support carrier, the reciprocating drive mechanism drives the rotating material support carrier to transport the workpiece from the loading station to the polishing station, and the threading and tightening mechanism passes the wire from bottom to top through the through hole of the workpiece and extends it upward and tightens it. The wire, the wire clamping mechanism grabs the wire above the through hole and clamps it. When the wire pushing mechanism repeatedly pushes the wire, the rotating support carrier synchronously rotates the workpiece 360 degrees, so that the wire polishes the through hole of the workpiece, realizing the automated through-hole polishing production mode of workpiece loading, workpiece transfer, wire perforation, wire clamping, and wire pushing, which greatly improves the polishing efficiency of the workpiece through hole and reduces production costs; the rotating support carrier consists of a support base, a turntable and two support parts for holding the workpiece, and the support base is movably connected to the material transfer channel The first and second limit pins are provided, the first and second drive components are provided, and the two support parts are automatically rotated inwards and retracted to hold the workpiece; the elastic protrusions are provided on the support parts, and the inner and outer recesses corresponding to the elastic protrusions are provided in the installation groove, and the cooperation of the protrusions and the recesses realizes the positioning of the support parts; the two guide blocks are provided to realize the automatic outward rotation and opening of the two support parts to release the workpiece; the wire feeding component, the wire pulling component, the wire top component, The wire threading and tightening mechanism composed of the wire feeding and clamping assembly, the wire pulling and clamping assembly, the elastic wire feeding and tensioning assembly realizes the functions of wire feeding, threading, wire taking and tightening; the wire pushing mechanism composed of the wire pushing base, the telescopic rod, the wire pushing drive unit, the wire pushing wheel, the locking assembly and the reciprocating drive device is set, the wire pushing drive unit controls the telescopic rod to drive the wire pushing wheel to press the wire, the locking assembly locks the telescopic rod on the wire pushing base, and under the drive of the reciprocating drive device, the wire pushing wheel pushes the wire reciprocatingly so that the wire rubs and polishes the through hole.

[0016] In order to more clearly illustrate the structural features, technical means and specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the assembly structure of an embodiment of the present invention;

[0018] Figure 2 1 is a schematic diagram of the assembly of the material transfer channel, the workpiece feeding mechanism and the rotary support carrier according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 Schematic diagram from another perspective;

[0020] Figure 4 1 is an exploded schematic diagram of a rotary support carrier according to an embodiment of the present invention;

[0021] Figure 5 1 is an exploded schematic diagram of a material support member and a turntable according to an embodiment of the present invention;

[0022] Figure 6 2 is a schematic structural diagram of a workpiece feeding mechanism according to an embodiment of the present invention;

[0023] Figure 7 is a cross-sectional schematic diagram of a workpiece feeding mechanism according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a workpiece lifting stand according to an embodiment of the present invention lifting a workpiece;

[0025] Figure 9 1 is a structural diagram of a threading and tightening mechanism according to an embodiment of the present invention;

[0026] Figure 10 This is an assembly diagram of a wire feeding and clamping assembly and a wire pulling and clamping assembly according to an embodiment of the present invention;

[0027] Figure 11 It is an assembly drawing of the wire taking and clamping mechanism and the wire pushing mechanism of an embodiment of the present invention.

[0028] Figure 12 2 is a schematic structural diagram of a wire pushing mechanism according to an embodiment of the present invention;

[0029] Figure 13 1. It is a schematic diagram of the assembly of the locking assembly according to an embodiment of the present invention;

[0030] Figure 14 It is a schematic diagram of the workpiece structure of an embodiment of the present invention.

[0031] Description of the accompanying drawings:

[0032] 10-frame; 11-material transfer channel; 111-gap slot;

[0033] 12-longitudinal guide rail; 121-guide groove; 13-loading station;

[0034] 14-polishing station; 15-first drive assembly; 151-first drive cylinder;

[0035] 152-first push block; 153-lateral push ramp; 16-second drive assembly;

[0036] 161 - second driving cylinder; 162 - second push block; 17 - first guide block;

[0037] 171-first guide slope; 18-second guide block; 181-second guide slope;

[0038] 19-mounting seat; 20-rotating support carrier; 21-support base;

[0039] 211-guide wheel; 212-connecting block; 22-turntable;

[0040] 221 - opening for clearance; 23 - first mounting slot; 231 - first arc-shaped slot;

[0041] 232-The first inner concave part; 233-The first outer concave part; 24-The second mounting groove;

[0042] 241-The second arc-shaped groove; 242-The second inner concave portion; 243-The second outer concave portion;

[0043] 25-first supporting member; 251-first step; 252-first elastic protrusion;

[0044] 26-first pin; 27-first limit pin; 28-second support member;

[0045] 281 - second step; 282 - second elastic protrusion; 29 - second pin;

[0046] 30-second limit pin; 31-supporting slot; 32-cover plate;

[0047] 321-through hole for making way; 33-transmission gear; 331-through slot for making way;

[0048] 34-annular baffle; 35-driving gear; 36-transmission shaft;

[0049] 37-worm; 38-rotation drive motor; 39-reciprocating drive mechanism;

[0050] 391-screw; 392-reciprocating drive motor; 40-workpiece feeding mechanism;

[0051] 41-workpiece clip; 42-workpiece feeding slide; 43-workpiece feeding drive unit;

[0052] 44-material receiving chute; 45-lifting opening; 46-workpiece lifting frame;

[0053] 461-supporting part; 47-workpiece lifting drive unit; 48-supporting plate;

[0054] 481-limiting protrusion; 49-rotating shaft; 50-threading and tightening mechanism;

[0055] 51 - Wire Feeding Component 511 - Wire Feeding Clamp; 512 - Wire Feeding Slide Base;

[0056] 513 - Wire Feeding Clamping Cylinder; 514 - Wire Feeding Cylinder; 52 - Wire Pulling Component;

[0057] 521 - Wire Pulling Clamp; 522 - Wire Pulling Slide Base; 523 - Wire Pulling Clamping Cylinder;

[0058] 524 - Wire Pulling Cylinder; 53 - Wire Pushing Component; 531 - Wire Pushing Block;

[0059] 532 - Wire Pushing Cylinder; 533 - Flat Part; 54 - Wire Feeding Guide Pulley;

[0060] 55 - Wire Pulling Guide Pulley; 56 - Wire Feeding Pressing Component; 561 - Wire Feeding Pressing Clamp;

[0061] 562 - Wire Feeding Pressing Cylinder; 57 - Wire Pulling Pressing Component; 571 - Wire Pulling Pressing Clamp;

[0062] 572 - Wire Pulling Pressing Cylinder; 58 - Wire Feeding Tension Swing Arm; 581 - Wire Feeding Tension Pulley;

[0063] 59 - Wire Feeding Tension Spring; 60 - Wire Feeding Tension Cylinder; 61 - First Spring Socket Part;

[0064] 62 - Wire Pulling Tension Swing Arm; 621 - Wire Pulling Tension Pulley; 63 - Wire Pulling Tension Spring;

[0065] 64 - Wire Pulling Tension Cylinder; 65 - Second Spring Socket Part; 66 - Unwinding Reel;

[0066] 67 - Wire; 70 - Wire Taking and Clamping Mechanism; 71 - Wire Taking Clamp;

[0067] 72 - Wire Taking and Clamping Driving Unit; 73 - Wire Taking and Clamping Base; 74 - Lifting Driving Unit;

[0068] 80 - Wire Pushing Mechanism; 81 - Wire Pushing Base; 82 - Connecting Rod;

[0069] 83 - Reducer; 84 - Wire Pushing Driving Motor; 85 - Telescopic Rod;

[0070] 851 - Card Slot; 86 - Wire Pushing Driving Unit; 87 - Wire Pushing Wheel;

[0071] 871 - Annular Limiting Groove; 88 - Locking Component; 881 - Locking Block;

[0072] 882 - Locking Driving Unit; 90 - Workpiece; 91 - Workpiece Through Hole. Detailed Implementation Manner

[0073] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the indicated position or element 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.

[0074] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] As Figures 1-14 shown, a wire-drawing type through-hole polishing machine includes a frame 10. A material transfer channel 11 is provided on the frame 10. The material transfer channel 11 has a loading station 13 and a polishing station 14. A rotary material supporting carrier 20 for placing a workpiece 90 to be polished is movably provided in the material transfer channel 11. A reciprocating driving mechanism 39 for controlling the reciprocating movement of the rotary material supporting carrier 20 between the loading station 13 and the polishing station 14 is provided on the frame 10. A workpiece feeding mechanism 40 for feeding the workpiece 90 to be polished to the rotary material supporting carrier 20 is provided on one side of the loading station 13. A wire threading and tightening mechanism 50 for passing a wire 67 through a through-hole 91 of the workpiece 90 and protruding upward and tightening it is provided below the polishing station 14. A wire picking and clamping mechanism 70 for grasping and clamping the wire 67 is provided above the polishing station 14. A wire pushing mechanism 80 for pushing the wire 67 to polish the through-hole 91 of the workpiece 90 is provided on one side of the wire picking and clamping mechanism 70.

[0076] As Figures 2-5As shown, the rotating material supporting carrier 20 includes a material supporting base 21 movably arranged in the material transfer channel 11, the frame 10 is provided with longitudinal guide rails 12 arranged at intervals, and the aforementioned material transfer channel 11 is formed between the two longitudinal guide rails 12, and the longitudinal guide rail 12 is provided with a guide groove 121 on the side facing the material transfer channel 11, and a guide wheel 211 corresponding to the guide groove 121 is rotatably provided on the material supporting base 21. The material supporting base 21 is arranged in the material transfer channel 11 through the cooperation of the guide wheel 211 and the guide groove 121. A turntable 22 is provided on the material supporting base 21, and a first material supporting member 25 and a second material supporting member 28 are provided on the turntable 22. The first material supporting member 25 and the second material supporting member 28 are arranged oppositely. A supporting trough 31 for supporting the workpiece 90 is formed therebetween, a first step 251 is provided on the side of the first supporting member 25 facing the second supporting member 28, a second step 281 is provided on the side of the second supporting member 28 facing the first supporting member 25, a clearance opening 221 is provided on the turntable 22 for the workpiece 90 to pass upward, the clearance opening 221 is located directly below the supporting trough 31 and is connected to the supporting trough 31, a cover plate 32 is provided above the supporting trough 31, the cover plate 32 is connected to the turntable 22, and a clearance through hole 321 is provided on the upper surface of the cover plate 32 for exposing the through hole 91 of the workpiece 90 upward, and the workpiece 90 is restricted from moving in the up and down directions by the cooperation between the cover plate 32 and the step.

[0077] One end of the first material supporting member 25 is rotatably connected to the turntable 22 through a first pin shaft 26. One end of the second material supporting member 28 is rotatably connected to the turntable 22 through a second pin shaft 29. The axes of the first pin shaft 26 and the second pin shaft 29 extend in the vertical direction. A first limit pin 27 is provided at one end of the first material supporting member 25 away from the first pin shaft 26. A first arc-shaped groove 231 for the first limit pin 27 to extend downward is provided on the turntable 22. A second limit pin 30 is provided at one end of the second material supporting member 28 away from the second pin shaft 29. A second arc-shaped groove 241 for the second limit pin 30 to extend downward is provided on the turntable 22. A first driving assembly 15 for controlling the first material supporting member 25 to rotate inwardly around the first pin shaft 26 and a second driving assembly 16 for controlling the second material supporting member 28 to rotate inwardly around the second pin shaft 29 are provided on the frame 10. The first driving assembly 15 is arranged in the material transfer channel 11. The first driving assembly 15 includes a first pushing block 152 and a first driving air cylinder 151 for controlling the movement of the first pushing block 152. The moving direction of the first pushing block 152 is the same as the extending direction of the material transfer channel 11. The first pushing block 152 has a lateral pushing inclined surface 153 corresponding to the first limit pin 27. The second driving assembly 16 is arranged outside the material transfer channel 11. The second driving assembly 16 includes a second pushing block 162 and a second driving air cylinder 161 for controlling the movement of the second pushing block 162. The moving direction of the second pushing block 162 is perpendicular to the extending direction of the material transfer channel 11. During operation, the lateral pushing inclined surface 153 on the first pushing block .....

[0078] As Figures 2-5 It should be noted that the original text seems to be incomplete at the end of the translation of . Please check and provide the complete content if needed for a more accurate translation.As shown, a first guiding block 17 for enabling the first material supporting member 25 to rotate outward around the first pin shaft 26 and a second guiding block 18 for enabling the second material supporting member 28 to rotate outward around the second pin shaft 29 are provided in the material transfer channel 11. The first guiding block 17 and the second guiding block 18 are oppositely arranged between the loading station 13 and the polishing station 14. A first guiding inclined surface 171 is provided on one side of the first guiding block 17 away from the second guiding block 18, and a second guiding inclined surface 181 is provided on one side of the second guiding block 18 away from the first guiding block 17. The first guiding inclined surface 171 extends from the polishing station 14 to the loading station 13 in a direction away from the second guiding block 18, and the second guiding inclined surface 181 extends from the polishing station 14 to the loading station 13 in a direction away from the first guiding block 17. A spacing for the lower end of the first limiting pin 27 to move is formed between the first guiding block 17 and the longitudinal guide rail 12 away from the second guiding block 18, and a spacing for the lower end of the second limiting pin 30 to move is formed between the second guiding block 18 and the longitudinal guide rail 12 away from the first guiding block 17. By reserving the spacing, the first limiting pin 27 and the second limiting pin 30 can move unobstructed in the material transfer channel 11.

[0079] As Figures 4-5 shown, a first installation groove 23 for installing the first material supporting member 25 and a second installation groove 24 for installing the second material supporting member 28 are provided on the turntable 22. The first material supporting member 25 is rotatably arranged in the first installation groove 23, and the second material supporting member 28 is rotatably arranged in the second installation groove 24. A first elastic protrusion 252 is provided at one end of the first material supporting member 25 close to the first limiting pin 27. First inner concave portions 232 and first outer concave portions 233 corresponding to the first elastic protrusion 252 are sequentially provided on the side wall surface of the first installation groove 23 along the rotation direction of the first material supporting member 25. A second elastic protrusion 282 is provided at one end of the second material supporting member 28 close to the second limiting pin 30. Second inner concave portions 242 and second outer concave portions 243 corresponding to the second elastic protrusion 282 are sequentially provided on the side wall surface of the second installation groove 24 along the rotation direction of the second material supporting member 28. When supporting the material, the first elastic protrusion 252 is embedded in the first inner concave portion 232, and the second elastic protrusion 282 is embedded in the second inner concave portion 242. When discharging the material, the first elastic protrusion 252 is embedded in the first outer concave portion 233, and the second elastic protrusion 282 is embedded in the second outer concave portion 243.

[0080] As Figures 2-4As shown, a transmission component for driving the turntable 22 to move is provided on the stock supporting base 21. The transmission component includes a transmission shaft 36 and a transmission gear 33. The transmission gear 33 is arranged above the cover plate 32 and has a relief through slot 331 corresponding to the relief through hole 321. An annular baffle 34 is provided above the transmission gear 33. The annular baffle 34 is connected to the stock supporting base 21. The transmission gear 33 is connected to the turntable 22. A driving gear 35 engaged with the transmission gear 33 is provided at the upper end of the transmission shaft 36. There are two driving gears 35. The two driving gears 35 are coaxially arranged, and a reset mechanism for deflecting the two driving gears 35 relative to each other by a certain angle is provided between the two driving gears 35. The reset mechanism is a reset spring (not shown). During assembly, the side walls on both sides of the tooth groove on the transmission gear 33 contact the teeth of the two driving gears 35 respectively. By setting the reset mechanism, the two driving gears 35 are misaligned with each other, so that the side walls on both sides of the tooth groove of the transmission gear 33 contact the teeth of the two driving gears 35 respectively, ensuring close meshing between the transmission gear 33 and the driving gear 35 and improving the stability of the turntable 22. A relief slot 111 for the downward extension of the transmission shaft 36 is provided at the bottom of the material transfer channel 11. Both ends of the relief slot 111 extend to the feeding station 13 and the polishing station 14 respectively. A worm wheel (not shown) is provided at the lower end of the transmission shaft 36. A worm 37 for controlling the rotation of the worm wheel and a rotary drive motor 38 for controlling the rotation of the worm 37 are provided below the material transfer channel 11. The reciprocating drive mechanism 39 includes a lead screw 391 provided below the stock supporting base 21 and a reciprocating drive motor 392 for controlling the rotation of the lead screw 391. The stock supporting base 21 is provided with a connecting block 212 extending downward and threadedly engaged with the lead screw 391. During operation, after the reciprocating drive mechanism 39 controls the stock supporting base 21 to move to the polishing station 14, the worm 37 is engaged with the worm wheel to achieve transmission.

[0081] As Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, the workpiece feeding mechanism 40 includes a workpiece clamp 41, a workpiece feeding slide 42 and a workpiece feeding drive unit 43 for controlling the movement of the workpiece feeding slide 42. The workpiece feeding drive unit 43 is a workpiece feeding drive cylinder. The frame 10 is provided with a mounting seat 19 for mounting the workpiece clamp 41 and the feeding slide 42. The workpiece clamp 41 is fixedly mounted on the mounting seat 19, and the feeding slide 42 is movably mounted on the mounting seat 19. The workpiece feeding slide 42 is located below the workpiece clamp 41, and the workpiece feeding slide 42 is provided with a The receiving trough 44 receives the workpiece 90 output by the workpiece clip 41 and the workpiece lifting assembly for pushing the workpiece 90 in the receiving trough 44 upward to the supporting trough 31. The workpiece lifting assembly is arranged below the receiving trough 44. The workpiece lifting assembly includes a workpiece lifting frame 46 and a workpiece lifting drive unit 47 that controls the up and down movement of the workpiece lifting frame 46. The workpiece lifting drive unit 47 is a workpiece lifting drive cylinder. The bottom of the receiving trough 44 has a lifting clearance port 45 for the workpiece lifting frame 46 to pass upward. The workpiece feeding slide 42 extends upward at an angle. The upper end of the workpiece lifting frame 46 is provided with a supporting plate 48, and the side of the supporting plate 48 close to the workpiece clip 41 is rotatably connected to the workpiece lifting frame 46 through a rotating shaft 49. The workpiece lifting frame 46 is provided with a tension spring (not shown) that allows the supporting plate 48 to always rotate downward around the rotating shaft 49. One end of the tension spring is connected to the side of the supporting plate 48 away from the rotating shaft 49, and the other end is connected to the workpiece lifting frame 46. The side of the workpiece lifting frame 46 away from the rotating shaft 49 is provided with a support portion 461 for limiting the rotation stroke of the supporting plate 48. When the workpiece 90 is lifted up, Due to the action of the tension spring, the lower surface of the support plate 48 comes into contact with the upper end of the support portion 461, and a limiting step (not shown) is formed between the lifting and clearance opening 45 and the material receiving trough 44. The side of the support plate 48 away from the rotating shaft 49 is provided with a limiting protrusion 481 corresponding to the limiting step. By setting the support plate 48 to be rotatably connected with the workpiece lifting frame 46, and setting the support portion 461 to support the support plate 48, and then cooperating with the tension spring, the support plate 48 can be transformed from an inclined state to a horizontal state with respect to the workpiece 90, so as to facilitate the subsequent transfer of the workpiece 90 to the material receiving trough 31.

[0082] like Figure 1 、 Figure 9 as well as Figure 10As shown, the wire threading and tightening mechanism 50 includes a wire feeding component 51, a wire pulling component 52, and a wire pushing component 53 for pushing the wire 67 between the wire feeding component 51 and the wire pulling component 52 upward through the through hole 91 of the workpiece. The wire pushing component 53 is arranged between the wire feeding component 51 and the wire pulling component 52. On both sides of the upper end of the wire pushing component 53, there are respectively a wire feeding guide wheel 54 and a wire pulling guide wheel 55 for guiding the wire 67. Between the wire feeding guide wheel 54 and the wire feeding component 51, there is a wire feeding pressing component 56 for pressing the wire 67. Between the wire pulling guide wheel 55 and the wire pulling component 52, there is a wire pulling pressing component 57 for pressing the wire 67. On the frame 10, there are an elastic wire feeding tensioning component for tensioning the wire 67 between the wire feeding guide wheel 54 and the wire feeding pressing component 56, and an elastic wire pulling tensioning component for tensioning the wire 67 between the wire pulling guide wheel 55 and the wire pulling pressing component 57. The elastic wire feeding tensioning component includes a wire feeding tensioning swing arm 58, a wire feeding tensioning spring 59, and a wire feeding tensioning cylinder 60. The wire feeding tensioning cylinder 60 is arranged below the wire feeding tensioning swing arm 58. One end of the wire feeding tensioning swing arm 58 is rotatably connected to the frame 10, and the other end is provided with a wire feeding tensioning wheel 581 for pressing against the wire 67. On the driving ends of both the wire feeding tensioning swing arm 58 and the wire feeding tensioning cylinder 60, there are respectively rotatably arranged first spring socket parts 61. The upper and lower ends of the wire feeding tensioning spring 59 are respectively connected to the corresponding first spring socket parts 61. During operation, the wire feeding tensioning cylinder 60 pushes upward the wire feeding tensioning spring 59 to drive the wire feeding tensioning swing arm 58 to rotate, so that the wire feeding tensioning wheel 581 presses against the wire 67. The elastic wire pulling tensioning component includes a wire pulling tensioning swing arm 62, a wire pulling tensioning spring 63, and a wire pulling tensioning cylinder 64. The wire pulling tensioning cylinder 64 is arranged below the wire pulling tensioning swing arm 62. One end of the wire pulling tensioning swing arm 62 is rotatably connected to the frame 10, and the other end is provided with a wire pulling tensioning wheel 621 for pressing against the wire 67. On the driving ends of both the wire pulling tensioning swing arm 62 and the wire pulling tensioning cylinder 64, there are respectively rotatably arranged second spring socket parts 65. The upper and lower ends of the wire pulling tensioning spring 63 are respectively connected to the corresponding second spring socket parts 65. During operation, the wire pulling tensioning cylinder 64 pushes upward the wire pulling tensioning spring 63 to drive the wire pulling tensioning swing arm 62 to rotate, so that the wire pulling tensioning wheel 621 presses against the wire 67. The wire feeding component 51 includes a wire feeding slide block 512 and a wire feeding cylinder 514 for controlling the up and down movement of the wire feeding slide block 512. On the wire feeding slide block 512, there is a wire feeding clamp 511 for clamping the wire 67 and a wire feeding clamping cylinder 513 for controlling the opening and closing of the wire feeding clamp 511. On the frame 10, there is a reel 66 for supplying wire to the wire feeding component 51. The wire pulling component 52 includes a wire pulling slide block 522 and a wire pulling cylinder 524 for controlling the up and down movement of the wire pulling slide block 522. On the wire pulling slide block 522, there is a wire pulling clamp 521 for clamping the wire 67 and a wire pulling clamping cylinder 523 for controlling the opening and closing of the wire pulling clamp 521.The wire feeding and pressing component 56 includes a wire feeding and pressing clamp 561 and a wire feeding and pressing air cylinder 562 for controlling the opening and closing of the wire feeding and pressing clamp 561. The wire pulling and pressing component 57 includes a wire pulling and pressing clamp 571 and a wire pulling and pressing air cylinder 572 for controlling the opening and closing of the wire pulling and pressing clamp 571. The wire pushing component 53 includes a wire pushing block 531 and a wire pushing air cylinder 532 for controlling the up and down movement of the wire pushing block 531. A flat portion 533 is provided at the upper end of the wire pushing block 531.,

[0083] As Figure 1 and Figure 11 shown, the wire taking and clamping mechanism 70 includes a wire taking and clamping base 73 movably arranged on the frame 10 and a lifting driving unit 74 for controlling the up and down movement of the wire taking and clamping base 73. The lifting driving unit 74 is a lifting driving air cylinder. A wire taking clamp 71 for clamping the wire 67 and a wire taking and clamping driving unit 72 for controlling the opening and closing of the wire taking clamp 71 are provided on the wire taking and clamping base 73. The wire taking and clamping driving unit 72 is a wire taking and clamping driving air cylinder.,

[0084] As Figure 1 、 Figure 11 、 Figure 12 and Figure 13 shown, the wire pushing mechanism 80 includes a wire pushing base 81 and a reciprocating driving device for controlling the horizontal reciprocating movement of the wire pushing base 81. The reciprocating driving device includes a connecting rod 82, an eccentric wheel (not shown), a reduction gear 83 for driving the eccentric wheel to rotate, and a wire pushing driving motor 84 drivingly connected to the reduction gear 83. One end of the connecting rod 82 is rotatably connected to the eccentric wheel, and the other end is rotatably connected to the wire pushing base 81. An expansion rod 85 extending towards the polishing station 14 and a wire pushing driving unit 86 for controlling the movement of the expansion rod 85 are provided on the wire pushing base 81. The wire pushing driving unit 86 is a wire pushing driving air cylinder. A wire pushing wheel 87 for pushing against the wire 67 is provided at the extending end of the expansion rod 85. The axis of the wire pushing wheel 87 is horizontally perpendicular to the axis of the workpiece through hole 91, and an annular limiting groove 871 is provided on the outer circumferential surface of the wire pushing wheel 87. A locking component 88 for locking the expansion rod 85 is provided on the wire pushing base 81. The locking component 88 includes a locking block 881 and a locking driving unit 882 for controlling the movement of the locking block 881. The locking driving unit 882 is a locking driving air cylinder. The locking block 881 has a clamping block (not shown) extending towards the expansion rod 85. A clamping groove 851 corresponding to the clamping block is provided on the expansion rod 85. The expansion rod 85 can be locked by the cooperation of the clamping block and the clamping groove 851, so as to avoid the reverse pushing force on the expansion rod 85 caused by the reverse force when the wire pushing wheel 87 pushes against the wire 67.,

[0085] It should be noted that the present invention is applicable to polishing the wire passing holes on the sewing machine needle plate, but is not limited to the field of sewing machine needle plates.,

[0086] The working principle of the present invention is as follows: the workpiece 90 is stacked by a worker or a robot and placed in the workpiece clip 41. The workpiece 90 automatically falls into the receiving trough 44 of the feeding slide 42 under the action of gravity. The workpiece feeding drive unit 43 controls the feeding slide 42 to move toward the loading station 13. The workpiece lifting drive unit 47 controls the workpiece lifting frame 46 to move upward so that the supporting plate 48 drives the workpiece 90 to move upward. During the upward movement of the supporting plate 48, it rotates downward around the rotating shaft 49 under the action of the tension spring so that the workpiece 90 is converted from an inclined state to a horizontal state. The workpiece 90 passes through the clearance opening 221 and reaches the supporting trough 31. The first driving component 15 pushes the first limiting pin 27 to rotate the first supporting member 25 inward, and the second driving component 16 pushes the second limiting pin 30 to rotate the second supporting member 28 inward. The first and second steps 251 and 281 rotate to support the lower edges of both sides of the workpiece 90, and at the same time, the cover plate 32 presses against the upper surface of the workpiece 90 to limit the movement of the workpiece 90. The reciprocating drive mechanism 39 controls the support base 21 to move to the polishing station 14, and the worm gear engages with the worm 37. The wire feeding assembly 51 conveys the wire 67 on the unwinding disk 66 upward, and the wire 67 passes through the wire feeding and clamping assembly 56, the wire feeding guide wheel 54, the wire pulling guide wheel 55, and the wire pulling and clamping assembly 57 in turn and reaches the wire pulling assembly 52. The top wire cylinder 532 controls the top wire block 531 to move upward, and the flat portion 533 at the upper end of the top wire block 531 lifts the wire 67 to pass through the through hole 91 of the workpiece 90 and extend upward. The wire clamping mechanism 70 clamps the wire 67 and moves it upward for a certain distance to maintain the clamping state. In this state, the wire feeding clamping assembly 56 and the wire pulling clamping assembly 57 also clamp the wire 67, the wire pushing cylinder 532 controls the wire pushing block 531 to move down and back to the initial position, the elastic wire feeding tensioning assembly tensions the wire 67 between the wire feeding guide wheel 54 and the wire feeding clamping assembly 56 inward, the elastic wire pulling tensioning assembly tensions the wire 67 between the wire pulling guide wheel 55 and the wire pulling clamping assembly 57 inward, the wire pushing drive unit 86 controls the telescopic rod 85 to drive the wire pushing wheel 87 to move toward the polishing station 14, the wire pushing wheel 87 presses the wire 67 between the workpiece 90 and the wire taking clamping mechanism 70, the locking assembly 88 locks the telescopic rod 85 so that the telescopic rod 85 is fixed relative to the wire pushing base 81, and the reciprocating drive device controls the wire pushing base 81 to reciprocate so that the wire pushing wheel 87 The wire 67 is pushed back and forth, and at the same time, the rotary drive motor 38 controls the movement of the worm 37 to make the worm gear drive the transmission shaft 36 to rotate, and the driving gear on the transmission shaft 36 drives the transmission gear 33 to rotate to make the turntable 22 rotate 360 degrees. During the polishing process of the through hole 91 of the workpiece 90, since the elastic wire feeding tensioning component and the elastic wire pulling tensioning component have elasticity in tensioning the wire 67, when the wire pushing wheel 87 pushes the wire 67 and pulls the wire 67 upward, the wire 67 located between the wire feeding guide wheel 54 and the wire feeding clamping component 56 will overcome the elastic force of the wire feeding tensioning spring 59 and be stretched outward, and the wire 67 located between the wire pulling guide wheel 55 and the wire pulling clamping component 57 will overcome the elastic force of the wire pulling tensioning spring 63 and be stretched outward. After the through hole 91 of the workpiece 90 is polished,The reciprocating drive mechanism 39 controls the rotary material-carrying carrier 20 to return to the loading station 13. When passing by the first guiding block 17 and the second guiding block 18, the first guiding inclined surface 171 on the first guiding block 17 pushes against the first limit pin 27 to make the first material-carrying member 25 rotate outward around the first rotating shaft 49, and the second guiding inclined surface 181 on the second guiding block 18 pushes against the second limit pin 30 to make the second material-carrying member 28 rotate outward around the second rotating shaft 49, so that the workpiece 90 after the through-hole 91 is polished drops.

[0087] In summary, the present invention is provided with a material transfer channel, a rotary material-carrying carrier, a reciprocating drive mechanism, a workpiece feeding mechanism, a wire threading and tightening mechanism, a wire taking and clamping mechanism, and a wire pushing mechanism. The material transfer channel is provided with a loading station and a polishing station. The workpiece feeding mechanism transports the workpiece to the rotary material-carrying carrier. The reciprocating drive mechanism drives the rotary material-carrying carrier to transport the workpiece from the loading station to the polishing station. The wire threading and tightening mechanism passes the wire from bottom to top through the through-hole of the workpiece and extends upward and tightens the wire. The wire taking and clamping mechanism grabs and clamps the wire above the through-hole. When the wire pushing mechanism repeatedly pushes the wire, the rotary material-carrying carrier synchronously rotates the workpiece 360°, so that the wire polishes the through-hole of the workpiece, realizing an automatic through-hole polishing production mode of workpiece loading, workpiece transfer, wire perforation, wire clamping, and wire pushing, greatly improving the polishing efficiency of the through-hole of the workpiece and reducing the production cost; the rotary material-carrying carrier is composed of a material-carrying base, a turntable and two material-carrying members for holding the workpiece. The material-carrying base is movably connected to the material transfer channel, facilitating the transportation and rotation of the workpiece; by setting the first limit pin, the second limit pin, the first driving component and the second driving component, the two material-carrying members are automatically rotated inward to close and hold the workpiece; by setting elastic protrusions on the material-carrying members, and concave and convex portions corresponding to the elastic protrusions in the installation grooves, the cooperation between the protrusions and the concave portions realizes the positioning of the material-carrying members; by setting two guiding blocks, the two material-carrying members are automatically rotated outward to open and release the workpiece; by setting a wire threading and tightening mechanism composed of a wire feeding component, a wire pulling component, a wire pushing component, a wire feeding pressing component, a wire pulling pressing component, an elastic wire feeding tensioning component, and an elastic wire pulling tensioning component, the functions of wire feeding, wire threading, wire taking and tightening are realized; by setting a wire pushing mechanism composed of a wire pushing base, a telescopic rod, a wire pushing driving unit, a wire pushing wheel, a locking component, and a reciprocating driving device, the wire pushing driving unit is used to control the telescopic rod to drive the wire pushing wheel to press against the wire, and the locking component locks the telescopic rod on the wire pushing base, and under the drive of the reciprocating driving device, the wire pushing wheel repeatedly pushes the wire to polish the through-hole by frictional force of the wire.

[0088] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments according to the technical reality of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A wire-pull through-hole polishing machine, characterized in that: The machine comprises a frame, the frame is provided with a material moving channel, the material moving channel is provided with a loading station and a polishing station, a rotary material carrier for placing a workpiece to be polished is movably provided in the material moving channel, the frame is provided with a reciprocating driving mechanism for controlling the reciprocating movement of the rotary material carrier between the loading station and the polishing station, a workpiece feeding mechanism for conveying the workpiece to be polished to the rotary material carrier is provided on one side of the loading station, a threading and tightening mechanism for passing a wire through a through hole of the workpiece and extending it upward and tightening it is provided below the polishing station, a wire taking and clamping mechanism for grabbing and clamping the wire is provided above the polishing station, and a wire pushing mechanism for pushing the wire so that the wire polishes the through hole of the workpiece is provided on one side of the wire taking and clamping mechanism; The rotary support carrier includes a support base movably arranged in the material transfer channel, the support base is provided with a turntable, the turntable is provided with a first support member and a second support member arranged opposite to each other, and a support groove for supporting the workpiece is formed between the first support member and the second support member; One end of the first supporting member is rotatably connected to the turntable through a first pin shaft, and one end of the second supporting member is rotatably connected to the turntable through a second pin shaft, and the first supporting member is provided with a first limiting pin at an end away from the first pin shaft, and the turntable is provided with a first arc groove for the first limiting pin to extend downward, and the second supporting member is provided with a second limiting pin at an end away from the second pin shaft, and the turntable is provided with a second arc groove for the second limiting pin to extend downward, and the frame is provided with a first driving assembly for controlling the first supporting member to rotate inward around the first pin shaft and a second driving assembly for controlling the second supporting member to rotate inward around the second pin shaft; The first driving assembly includes a first push block and a first driving cylinder for controlling the movement of the first push block, and the second driving assembly includes a second push block and a second driving cylinder for controlling the movement of the second push block. When in operation, the first push block presses the first limiting pin to cause the first supporting member to rotate inward around the first pin axis, and the second push block presses the second limiting pin to cause the second supporting member to rotate inward around the second pin axis. The material transfer channel is provided with a first guide block for rotating the first supporting member outward around the first pin axis and a second guide block for rotating the second supporting member outward around the second pin axis. The first guide block and the second guide block are relatively arranged between the loading station and the polishing station.

2. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The moving direction of the first push block is the same as the extension direction of the material moving channel, the moving direction of the second push block is perpendicular to the extension direction of the material moving channel, and the first push block has a lateral push inclined surface corresponding to the first limit pin. When working, the lateral push inclined surface on the first push block presses the first limit pin to make the first material support rotate inward around the first pin axis.

3. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The first guide block is provided with a first guide bevel on the side away from the second guide block, and the second guide block is provided with a second guide bevel on the side away from the first guide block. The first guide bevel extends from the polishing station to the loading station in a direction away from the second guide block, and the second guide bevel extends from the polishing station to the loading station in a direction away from the first guide block.

4. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The turntable is provided with a first mounting groove for installing the first supporting member and a second mounting groove for installing the second supporting member, the first supporting member is rotatably arranged in the first mounting groove, and the second supporting member is rotatably arranged in the second mounting groove, the first supporting member is provided with a first elastic protrusion at one end close to the first limiting pin, and the side wall surface of the first mounting groove is provided with a first inner recess and a first outer recess corresponding to the first elastic protrusion in sequence along the rotation direction of the first supporting member, the second supporting member is provided with a second elastic protrusion at one end close to the second limiting pin, and the side wall surface of the second mounting groove is provided with a second inner recess and a second outer recess corresponding to the second elastic protrusion in sequence along the rotation direction of the second supporting member.

5. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The material supporting base is provided with a transmission assembly that drives the turntable to move, and the transmission assembly includes a transmission shaft and a transmission gear. The transmission gear is connected to the turntable, and the upper end of the transmission shaft is provided with a driving gear meshing with the transmission gear. The lower end of the transmission shaft is provided with a worm gear. A worm for controlling the rotation of the worm gear and a rotary drive motor for controlling the rotation of the worm gear are provided below the material moving channel. The reciprocating drive mechanism includes a screw and a reciprocating drive motor for controlling the rotation of the screw gear, and the material supporting base is threadedly connected to the screw gear.

6. A wire-drawing through-hole polishing machine according to claim 1, characterized in that: The workpiece feeding mechanism includes a workpiece clamp, a workpiece feeding slide and a workpiece feeding drive unit that controls the movement of the workpiece feeding slide. The workpiece feeding slide is located below the workpiece clamp, and the workpiece feeding slide is provided with a receiving trough for receiving the workpiece output by the workpiece clamp and a workpiece lifting assembly for pushing the workpiece in the receiving trough upward to the supporting trough. The workpiece lifting assembly is arranged below the receiving trough. The workpiece lifting assembly includes a workpiece lifting frame and a workpiece lifting drive unit that controls the up and down movement of the workpiece lifting frame. The bottom of the receiving trough has a lifting clearance opening for the workpiece lifting frame to pass upward.

7. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The wire threading and tightening mechanism includes a wire feeding assembly, a wire pulling assembly, and a wire pushing assembly for lifting the wire between the wire feeding assembly and the wire pulling assembly upward and passing it through the through hole of the workpiece. The wire pushing assembly is arranged between the wire feeding assembly and the wire pulling assembly. A wire feeding guide wheel and a wire pulling guide wheel for guiding the wire are respectively provided on both sides of the upper end of the wire pushing assembly. A wire feeding clamping assembly for clamping the wire is provided between the wire feeding guide wheel and the wire feeding assembly. A wire pulling clamping assembly for clamping the wire is provided between the wire pulling guide wheel and the wire pulling assembly. An elastic wire feeding tensioning assembly for tensioning the wire between the wire feeding guide wheel and the wire feeding clamping assembly and an elastic wire pulling tensioning assembly for tensioning the wire between the wire pulling guide wheel and the wire pulling clamping assembly are provided on the frame.

8. A wire-pull through-hole polishing machine according to claim 1, characterized in that: The wire pushing mechanism includes a wire pushing base and a reciprocating drive device that controls the lateral reciprocating movement of the wire pushing base. The wire pushing base is provided with a telescopic rod extending toward the polishing station and a wire pushing drive unit that controls the movement of the telescopic rod. The protruding end of the telescopic rod is provided with a wire pushing wheel for pushing the wire, and the wire pushing base is provided with a locking assembly for locking the telescopic rod.

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