Automatic padlock grinding and polishing equipment

Abstract

The present invention discloses an automatic grinding and polishing device for padlocks, which relates to the technical field of polishing devices, and comprises a turntable mechanism, on which a clamp mechanism for clamping and flipping a padlock is arranged circumferentially, and a milling mechanism for milling a padlock body, a first abrasive belt grinding mechanism for grinding the front and back curved surfaces of the padlock body, a second abrasive belt grinding mechanism for grinding the side plane of the padlock body, a first polishing mechanism for polishing the front and back curved surfaces of the padlock body, and a second polishing mechanism for polishing the side plane of the padlock body are arranged in sequence along the running direction of the turntable mechanism. The present invention mainly solves the problem that the existing padlock body surface treatment production line needs to invest a large number of equipment and personnel; the automatic grinding and polishing device for padlocks can automatically complete the milling, grinding and polishing processes of multiple surfaces in the padlock body, improve the automation degree of the padlock production line, improve production efficiency, and reduce production costs.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, in particular to automatic grinding and polishing equipment for padlocks. Background Art

[0002] Padlocks are widely used in life. The padlock body needs to go through surface treatment processes such as milling, grinding and polishing to make the surface of the padlock body smooth before it can be put on the market as a commodity.

[0003] In the existing padlock body surface treatment production line, at least a milling station, a grinding station and a polishing station are required, and some padlock body surfaces have front and back curved surfaces and side planes. Since the curved surfaces and planes have different process requirements for grinding and polishing, at least two grinding stations and at least two polishing stations are required to grind and polish the front and back curved surfaces and side planes of the padlock body respectively. Therefore, the existing padlock body surface treatment production line requires a large number of equipment and personnel, has low production efficiency and high production cost. Summary of the invention

[0004] The object of the present invention is to provide an automatic grinding and polishing device for a padlock, which can automatically complete the milling, grinding and polishing processes of multiple surfaces in a padlock body, thereby improving production efficiency and reducing production costs.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic grinding and polishing device for padlocks, comprising a turntable mechanism, a clamp mechanism for clamping and flipping the padlock is circumferentially arranged on the turntable mechanism, and a milling mechanism for milling the padlock body, a first sanding belt grinding mechanism for grinding the front and back curved surfaces of the padlock body, a second sanding belt grinding mechanism for grinding the side plane of the padlock body, a first polishing mechanism for polishing the front and back curved surfaces of the padlock body, and a second polishing mechanism for polishing the side plane of the padlock body are sequentially arranged along the running direction of the turntable mechanism.

[0006] In the above technical scheme, the milling mechanism includes a spindle assembly, a feed table assembly, a milling cutter transverse slide, a milling cutter advance and retreat slide and a milling cutter lifting slide; the milling cutter transverse slide links the milling cutter advance and retreat slide to move along the tangential direction of the turntable mechanism, the milling cutter advance and retreat slide links the milling cutter lifting slide to move along the radial direction of the turntable mechanism, and the milling cutter lifting slide links the feed table assembly to rise and fall; the front end of the spindle assembly is a milling cutter for milling the padlock body, the spindle assembly is arranged on the feed table assembly, and the feed table assembly links the spindle assembly to feed.

[0007] In the above technical solution, the first belt grinding mechanism, the second belt grinding mechanism, the first polishing mechanism and the second polishing mechanism are respectively driven to move by a displacement mechanism; the displacement mechanism includes an X-axis displacement component, a Y-axis displacement component and a Z-axis displacement component; the X-axis displacement component links the Y-axis displacement component to move along the X-axis direction, and the Y-axis displacement component links the Z-axis displacement component to move along the Y-axis direction; the first belt grinding mechanism, the second belt grinding mechanism, the first polishing mechanism and the second polishing mechanism are respectively arranged on the Z-axis displacement component of the displacement mechanism.

[0008] In the above technical solution, the first sanding belt grinding mechanism includes a first bracket assembly, a first driving wheel assembly, a driven wheel assembly and a first sanding belt; the first driving wheel assembly and the driven wheel assembly are both arranged on the first bracket assembly, the first driving wheel assembly and the driven wheel assembly tension the first sanding belt, and the portion of the first sanding belt between the first driving wheel assembly and the driven wheel assembly is a grinding portion; two first sanding belt grinding mechanisms are provided; the first bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two first sanding belt grinding mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two first sanding belt grinding mechanisms to close or separate along the Z-axis direction.

[0009] In the above technical solution, the second sanding belt grinding mechanism includes a second bracket assembly, a second driving wheel assembly, a fixed driven wheel assembly, a movable driven wheel assembly, a pressure sanding belt assembly and a second sanding belt; the second driving wheel assembly, the fixed driven wheel assembly, the movable driven wheel assembly and the pressure sanding belt assembly are all arranged on the second bracket assembly, the second driving wheel assembly, the fixed driven wheel assembly and the movable driven wheel assembly tension the second sanding belt, the pressure sanding belt assembly presses the second sanding belt from the inner side of the tensioned second sanding belt, and the part of the second sanding belt pressed by the pressure sanding belt assembly is the grinding part; two second sanding belt grinding mechanisms are arranged; the second bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two second sanding belt grinding mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two second sanding belt grinding mechanisms to close or separate along the Z-axis direction.

[0010] In the above technical solution, the first polishing mechanism includes a third bracket assembly, a driving shaft assembly, a swing arm assembly, a nylon wheel assembly and a transmission assembly; the driving shaft assembly is arranged on the third bracket assembly, the swing arm assembly is pivotally connected to the third bracket assembly, the nylon wheel assembly is arranged on the swing arm assembly, and the transmission assembly transmits between the driving shaft assembly and the nylon wheel assembly; two first polishing mechanisms are provided; the third bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two first polishing mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two first polishing mechanisms to close or separate along the Z-axis direction.

[0011] In the above technical solution, the second polishing mechanism includes a fourth bracket assembly, a second polishing motor, a second nylon wheel and a second nylon wheel axle; the second polishing motor is fixed to the fourth bracket assembly, the second nylon wheel axle is pivotally connected to the fourth bracket assembly, the second nylon wheel is sleeved on the second nylon wheel axle, and the second polishing motor drives the second nylon wheel axle to rotate; two second polishing mechanisms are provided; the fourth bracket assembly is fixed to the corresponding moving part of the Z-axis displacement assembly, the two second polishing mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly drives the two second polishing mechanisms to close or separate along the Z-axis direction.

[0012] In the above technical solution, the clamp mechanism includes a clamp base, a clamp motor, a clamp swivel, a clamp cylinder, a lower clamp block and an upper clamp block; the clamp base is fixed on the turntable of the turntable mechanism, and the clamp motor is fixed on the clamp base; the lower clamp block is provided with a U-shaped groove matching the lock hook of the padlock, the clamp cylinder and the lower clamp block are both fixed on the clamp swivel, and the clamp cylinder drives the upper clamp block to move closer to or away from the lower clamp block; the clamp motor drives the clamp swivel to rotate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: this type of automatic padlock grinding and polishing equipment is equipped with a milling mechanism, a first sanding belt grinding mechanism, a second sanding belt grinding mechanism, a first polishing mechanism and a second polishing mechanism in sequence along the running direction of the turntable mechanism, and can automatically complete the milling, grinding and polishing processes of multiple surfaces in the padlock body, thereby improving the degree of automation of the padlock production line, improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the present invention.

[0015] Figure 2 It is a three-dimensional view of the present invention in another direction.

[0016] Figure 3 It is a top view of the present invention.

[0017] Figure 4 It is a three-dimensional view of the turntable mechanism and the clamp mechanism in the present invention.

[0018] Figure 5 It is an exploded view of the clamp mechanism in the present invention.

[0019] Figure 6 It is a three-dimensional view of the milling mechanism in the present invention.

[0020] Figure 7 It is a three-dimensional view of the milling mechanism in the present invention from another direction.

[0021] Figure 8 It is an exploded view of the milling mechanism in the present invention.

[0022] Fig. 9 It is a three-dimensional view of the displacement mechanism in the present invention.

[0023] Fig.10 It is a three-dimensional view of the displacement mechanism of the present invention in another direction.

[0024] Fig.11 It is an exploded view of the displacement mechanism in the present invention.

[0025] Fig.12 It is a three-dimensional view of the first belt grinding mechanism in the present invention.

[0026] Fig.13 It is a three-dimensional view of the first belt grinding mechanism in the present invention from another direction.

[0027] Fig.14 It is an exploded view of the first belt grinding mechanism in the present invention.

[0028] Fig.15 It is a structural view of the tension adjustment assembly in the present invention.

[0029] Fig.16 It is a front view of the displacement mechanism and the first abrasive belt grinding mechanism in the present invention.

[0030] Fig.17 It is a schematic diagram of the assembly of the displacement mechanism and the first abrasive belt grinding mechanism in the present invention.

[0031] Fig.18 It is a three-dimensional view of the second belt grinding mechanism in the present invention.

[0032] Fig.19 It is a three-dimensional view of the second belt grinding mechanism in the present invention from another direction.

[0033] Fig. 20 It is a three-dimensional view of the movable driven wheel assembly in the present invention.

[0034] Fig.21 It is a three-dimensional view of the sanding belt assembly in the present invention.

[0035] Fig. 22 It is a front view of the displacement mechanism and the second belt grinding mechanism in the present invention.

[0036] Fig.23 It is a schematic diagram of the assembly of the displacement mechanism and the second belt grinding mechanism in the present invention.

[0037] Fig.24 It is a three-dimensional view of the first polishing mechanism in the present invention.

[0038] Fig.25 It is a three-dimensional view of the first polishing mechanism in the present invention from another direction.

[0039] Fig.26 It is an exploded view of the first polishing mechanism in the present invention.

[0040] Fig. 27 It is a cross-sectional view of the first polishing mechanism in the present invention.

[0041] Fig.28 It is a front view of the displacement mechanism and the first polishing mechanism in the present invention.

[0042] Fig.29 It is a schematic diagram of the assembly of the displacement mechanism and the first polishing mechanism in the present invention.

[0043] Fig.30 It is a three-dimensional view of the second polishing mechanism in the present invention.

[0044] Fig.31 This is a view of the internal structure of the second polishing mechanism in the present invention.

[0045] Fig.32 It is a front view of the displacement mechanism and the second polishing mechanism in the present invention.

[0046] Fig.33 It is a schematic diagram of the assembly of the displacement mechanism and the second polishing mechanism in the present invention.

[0047] Fig.34 This is a three-dimensional view of the first belt grinding mechanism of the present invention when it is working.

[0048] Fig.35 for Fig.34 A is a partial enlarged view of the figure.

[0049] Fig.36 This is a three-dimensional view of the second belt grinding mechanism of the present invention when it is working.

[0050] Fig.37 for Fig.36 A partial enlarged view of B.

[0051] Fig.38 It is a three-dimensional view of the first polishing mechanism in the present invention when working.

[0052] Fig.39 for Fig.38 A partial enlarged view of C in FIG.

[0053] Fig.40 It is a three-dimensional view of the second polishing mechanism in the present invention when working.

[0054] Fig.41 for Fig.38 A partial enlarged view of D in FIG.

[0055] The accompanying drawings are marked as follows: 1. turntable mechanism; 11. turntable; 2. fixture mechanism; 201. fixture base; 202. fixture motor; 203. fixture swivel; 204. fixture cylinder; 205. lower clamp; 206. U-shaped groove; 207. upper clamp; 3. milling mechanism; 301. spindle motor; 302. spindle; 303. nut; 304. milling cutter; 305. spindle base plate; 306. spindle support seat; 307. feed base plate; 308. angle adjustment part; 309. arc groove; 310. feed cylinder; 311. feed guide rail; 312. milling cutter transverse slide; 313. milling cutter advance and retreat slide; 314. milling cutter lifting slide; 4. displacement mechanism; 41. X-axis displacement assembly; 411. X-axis motor; 412 , X-axis screw rod; 413, X-axis screw rod nut; 414, X-axis guide rail; 415, X-axis base plate; 42, Y-axis displacement assembly; 421, Y-axis motor; 422, Y-axis screw rod; 423, Y-axis screw rod nut; 424, Y-axis guide rail; 425, Y-axis base plate; 43, Z-axis displacement assembly; 431, Z-axis motor; 432, Z-axis screw rod; 433, Z-axis linkage frame; 44, Z-axis guide rail; 45, Z-axis bracket; 46, partition plate; 47, accordion cover; 5, first sanding belt grinding mechanism; 51, first bracket assembly; 511, main bracket; 512, sanding belt support plate; 52, first driving wheel assembly; 521, first sanding belt motor; 522, driving wheel sleeve; 523, first sanding belt driving wheel; 53, tension adjustment 1. Joint assembly; 531. Bushing slide; 532. Pivot pin; 533. Tensioning slide; 534. First tensioning cylinder; 535. Swivel; 536. Adjustment lever; 537. Swivel plate; 538. Clamp arm; 54. Driven wheel assembly; 541. Swinging shaft; 542. Swinging bushing; 543. Swinging arm; 544. Sand belt driven wheel; 545. Coupling cylinder; 55. First sand belt; 56. Chip suction cover; 561. Air pipe interface; 57. Dust cover; 6. Second sand belt grinding mechanism; 61. Second bracket assembly; 611. Main support plate; 612. Sand belt motor bracket; 62. Second driving wheel assembly; 621. Second sand belt motor; 622. First transmission wheel; 623. First transmission belt; 624. Second sand belt driving wheel wheel; 625, driving wheel shaft; 63, fixed driven wheel assembly; 631, fixed driven wheel; 632, fixed driven wheel shaft; 64, movable driven wheel assembly; 641, movable driven wheel; 642, driven wheel pivot frame; 643, second tensioning cylinder; 65, sand belt pressing assembly; 651, sand belt pressing cylinder; 652, pressing plate; 653, elastic member; 654, contact plate; 66, second sand belt; 67, sand belt cover; 7, first polishing mechanism; 71, third bracket assembly; 711, support plate; 712, polishing motor bracket; 713, driving shaft sleeve; 72, driving shaft assembly; 721, first polishing motor; 722, second transmission wheel; 723, second transmission belt; 724, driving shaft; 725, driving shaft bearing;73, swing arm assembly; 731, swing arm; 732, swing arm bushing; 733, swing arm bearing; 74, nylon wheel assembly; 741, first nylon wheel; 742, first nylon wheel axle; 743, nylon wheel bushing; 75, transmission assembly; 751, third transmission wheel; 752, third transmission belt; 76, swing arm cylinder assembly; 761, swing arm cylinder; 762, linkage arm; 763, spring; 77, first nylon wheel cover; 7 8. First transmission belt cover; 8. Second polishing mechanism; 801. Vertical mounting plate; 802. Horizontal mounting plate; 803. Second polishing motor; 804. Fourth transmission wheel; 805. Fourth transmission belt; 806. Support seat; 807. Second nylon wheel; 808. Second nylon wheel axle; 809. Buffer seat; 810. Second nylon wheel cover; 811. Second transmission belt cover; 812. Nylon wheel axle cover; 9. Frame; 10. Padlock. ; DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] An automatic grinding and polishing device for padlocks is used for performing surface treatment processes of milling, grinding and polishing on a padlock body; the front and back surfaces of the padlock body 10 are curved surfaces, and the two side surfaces are flat surfaces.

[0058] See also Figure 1-Figure 3 The automatic padlock grinding and polishing equipment includes a turntable mechanism 1 arranged on a frame 9, and a clamp mechanism 2 for clamping and flipping a padlock 10 is circumferentially arranged on the turntable mechanism 1. A milling mechanism 3 for milling the padlock body, a first sanding belt grinding mechanism 5 for grinding the front and back curved surfaces of the padlock body, a second sanding belt grinding mechanism 6 for grinding the side plane of the padlock body, a first polishing mechanism 7 for polishing the front and back curved surfaces of the padlock body, and a second polishing mechanism 8 for polishing the side plane of the padlock body are sequentially arranged along the running direction of the turntable mechanism 1.

[0059] The first belt grinding mechanism 5 , the second belt grinding mechanism 6 , the first polishing mechanism 7 and the second polishing mechanism 8 are respectively driven to move by a displacement mechanism 4 .

[0060] See also Figure 4The turntable mechanism 1 is a turntable mechanism in the prior art, and a servo motor and a divider are arranged inside the turntable mechanism 1; the divider in this embodiment has an input end that is an axial hole or an input shaft, and an output end that is a flat disk surface; the rotating shaft of the servo motor is connected to the input end of the divider, and the turntable 11 of the turntable mechanism 1 is horizontally fixed on the output end disk surface of the divider, and the turntable 11 is coaxial with the output end of the divider; the divider in this embodiment is set to be divided into six equal parts, that is, for every rotation of the servo motor of the turntable mechanism 1, the output end of the divider rotates 60° and the turntable 11 is linked to rotate 60°; the turntable mechanism 1 is fixed at the center of the frame 9.

[0061] See also Figure 4 and Figure 5 , each clamp mechanism 2 includes a clamp base 201, a clamp motor 202, a clamp swivel 203, a clamp cylinder 204, a lower clamp block 205 and an upper clamp block 207; the clamp base 201 is a metal base, which has a horizontal surface and a vertical surface, and a circular hole is opened on the vertical surface; the clamp motor 202 is a servo motor or a stepper motor with a reducer, and the output shaft of the reducer is the rotating shaft of the clamp motor 202. The main body of the clamp motor 202 is fixed on the vertical surface of the clamp base 201, and the rotating shaft of the clamp motor 202 passes through the circular hole of the vertical surface; the clamp swivel 203 is a metal seat, and its main body is a flat plate. The back of the flat plate is provided with a sleeve with an outer diameter slightly smaller than the circular hole of the clamp base 201, and the sleeve is sleeved on the clamp The motor 202 is on the rotating shaft and is connected to the rotating shaft key of the clamp motor 202. The rotating shaft of the clamp motor 202 supports the weight of the clamp swivel 203 and drives the clamp swivel 203 to rotate; the lower clamp block 205 is a metal block, and the upper surface is provided with a U-shaped groove 206 that matches the lock hook of the padlock 10. The lower clamp block 205 is fixed to the lower front part of the flat plate of the clamp swivel 203; the cylinder body of the clamp cylinder 204 is fixed to the upper front part of the flat plate of the clamp swivel 203, and the piston rod of the clamp cylinder 204 points in the direction of the lower clamp block 205; the upper clamp block 207 is a metal block, and the upper clamp block 207 is fixed to the front end of the piston rod of the clamp cylinder 204. The clamp cylinder 204 drives the upper clamp block 207 to move, so that the upper clamp block 207 is close to or away from the lower clamp block 205. The clamp base 201 of the clamp mechanism 2 is fixed on the turntable 11 of the turntable mechanism 1. There are six clamp mechanisms 2, which are evenly arranged circumferentially on the turntable 11 of the turntable mechanism 1. The lower clamp block 205 and the upper clamp block 207 of each clamp mechanism 2 face the outside of the turntable mechanism 1.

[0062] See also Figure 6-Figure 8The milling mechanism 3 includes a spindle assembly, a feed table assembly, a milling cutter transverse slide 312, a milling cutter advance and retreat slide 313 and a milling cutter lifting slide 314; the milling cutter transverse slide 312 is a linear electric slide driven by a servo motor, and a mounting platform is provided on the frame 9, and the bottom plate of the milling cutter transverse slide 312 is fixed on the mounting platform, and the slide movement direction of the milling cutter transverse slide 312 is the tangent direction of the turntable mechanism 1; the milling cutter advance and retreat slide 313 is a linear manual slide with a handwheel, and the bottom plate of the milling cutter advance and retreat slide 313 is fixed on the bottom plate of the milling cutter transverse slide 312 On the slide, the milling cutter transverse slide 312 can be linked to the milling cutter advance and retreat slide 313 to move along the tangential direction of the turntable mechanism 1, and the slide movement direction of the milling cutter advance and retreat slide 313 is the radial direction of the turntable mechanism 1; the milling cutter lifting slide 314 is a linear manual slide with a handwheel, and the milling cutter lifting slide 314 is vertically arranged, that is, the slide of the milling cutter lifting slide 314 moves along the vertical direction, and its bottom plate is fixed on the slide of the milling cutter advance and retreat slide 313, so that the milling cutter advance and retreat slide 313 can be linked to the milling cutter lifting slide 314 to move along the radial direction of the turntable mechanism 1. The spindle assembly includes a spindle motor 301, a spindle 302, a nut 303, a milling cutter 304, a spindle base plate 305 and a spindle support seat 306; the spindle base plate 305 is a metal flat plate, the spindle motor 301 is fixed to the upper part of the spindle base plate 305, the spindle support seat 306 is a support seat with a bearing, and the spindle support seat 306 is fixed to the lower part of the spindle base plate 305; the spindle 302 is inserted into the spindle support seat 306 and supported in the spindle support seat 306 by bearings, one end of the spindle 302 is connected to the rotating shaft of the spindle motor 301 through a coupling, and the other end of the spindle 302 is fixed to the milling cutter 304 through a nut 303, that is, the front end of the spindle assembly is the milling cutter 304 for milling the padlock body. The spindle assembly is arranged on the feed table assembly, and the feed table assembly drives the spindle assembly to feed. Specifically, the feed table assembly includes a feed base plate 307, a feed cylinder 310 and a feed guide rail 311; the feed base plate 307 is a metal flat plate, the feed cylinder 310 is fixed on the upper part of the feed base plate 307, and the piston rod of the feed cylinder 310 points vertically downward; there are two feed guide rails 311, and the two feed guide rails 311 are both fixed on the middle part of the feed base plate 307 and are parallel to the piston rod of the feed cylinder 310; the spindle base plate 305 is fixed on the slider of the feed guide rail 311, and the piston rod of the feed cylinder 310 is connected to the spindle base plate 305 through a push block, so that the feed cylinder 310 can drive the spindle assembly to feed.

[0063] Furthermore, arc-shaped angle adjustment parts 308 are formed on both sides of the feed base plate 307, and the two angle adjustment parts 308 are respectively provided with arc-shaped grooves 309. After the screws pass through the arc-shaped grooves 309, they are locked into the slide of the milling cutter lifting slide 314. By adjusting the matching position of the arc-shaped grooves 309 and the screws, the angle of the feed base plate 307 can be adjusted, and then the angle of the milling cutter 304 in the spindle assembly can be adjusted.

[0064] See also Figure 9-11The displacement mechanism 4 includes an X-axis displacement component 41, a Y-axis displacement component 42, a Z-axis displacement component 43 and a Z-axis bracket 45. The X-axis displacement assembly 41 includes an X-axis motor 411, an X-axis screw rod 412, an X-axis screw rod nut 413, an X-axis guide rail 414 and an X-axis base plate 415; the X-axis base plate 415 is a metal flat plate, which can be fixed on a fixed object such as a frame, a base or a platform; the X-axis motor 411 is a servo motor or a stepper motor, and the body of the X-axis motor 411 is fixed on the side of the X-axis base plate 415; both ends of the X-axis screw rod 412 are supported on the X-axis base plate 415 through support seats, one end of the X-axis screw rod 412 is connected to the rotating shaft of the X-axis motor 411 through a coupling, and the X-axis screw rod nut 413 is sleeved on the X-axis screw rod 412; two X-axis guide rails 414 are provided, both of which are linear guide rails, on which sliders are sleeved, and the two X-axis guide rails 414 are fixed on the X-axis base plate 415, located on both sides of the X-axis screw rod 412 and parallel to the X-axis screw rod 412. The Y-axis displacement assembly 42 includes a Y-axis motor 421, a Y-axis lead screw 422, a Y-axis lead screw nut 423, a Y-axis guide rail 424, and a Y-axis base plate 425; the Y-axis base plate 425 is a metal plate, which is fixed on the slider of the X-axis guide rail 414, and the bottom of the Y-axis base plate 425 is fixed to the X-axis lead screw nut 413; the Y-axis motor 421 is a servo motor or a stepper motor, and the Y-axis motor 421 is provided with a reducer, that is, the rotating shaft of the Y-axis motor 421 is connected to the input shaft of the reducer, and the Y-axis motor 421 and the reducer are fixed to the Y-axis base plate 425. Side; both ends of the Y-axis screw rod 422 are supported on the Y-axis bottom plate 425 through support seats respectively, the Y-axis screw rod 422 and the X-axis screw rod 412 are both arranged horizontally and perpendicular to each other, one end of the Y-axis screw rod 422 is connected to the output shaft of the reducer of the Y-axis motor 421 through a coupling, and the Y-axis screw rod nut 423 is sleeved on the Y-axis screw rod 422; there are two Y-axis guide rails 424, both of which are linear guide rails, on which a slider is sleeved, and the two Y-axis guide rails 424 are fixed on the Y-axis bottom plate 425, located on both sides of the Y-axis screw rod 422 and parallel to the Y-axis screw rod 422. The Z-axis bracket 45 is a square metal frame, in the middle of which a partition plate 46 is fixed, and the partition plate 46 divides the Z-axis bracket 45 into upper and lower halves; the Z-axis bracket 45 is arranged vertically and fixed on the slider of the Y-axis guide rail 424, and the bottom of the Z-axis bracket 45 is fixed to the Y-axis screw rod nut 423.The displacement mechanism 4 includes two Z-axis displacement components 43, each of which includes a Z-axis motor 431, a Z-axis screw rod 432 and a Z-axis linkage frame 433; the Z-axis motor 431 is a servo motor or a stepper motor, and the Z-axis motor 431 is provided with a reducer, that is, the rotating shaft of the Z-axis motor 431 is connected to the input shaft of the reducer; the Z-axis motor 431 of one Z-axis displacement component 43 is fixed on the top of the Z-axis bracket 45, and the Z-axis motor 431 of the other Z-axis displacement component 43 is fixed on the partition plate 46; the Z-axis screw rod 432 of one Z-axis displacement component 43 is supported on the upper half of the Z-axis bracket 45 by a bearing passing through the top of the Z-axis bracket 45, the Z-axis screw rod 432 is vertically arranged, and one end of the Z-axis screw rod 432 is connected to the reducer output end of the Z-axis motor 431 at the top of the Z-axis bracket 45; the Z-axis screw rod 432 of the other Z-axis displacement component 43 is connected to the output end of the reducer of the Z-axis motor 431 at the top of the Z-axis bracket 45 The bearing passing through the partition plate 46 is supported on the lower half of the Z-axis bracket 45. The Z-axis screw rod 432 is also vertically arranged, and one end of the Z-axis screw rod 432 is connected to the output end of the reducer of the Z-axis motor 431 on the partition plate 46; the two Z-axis screw rods 432 are connected in a straight line; the Z-axis linkage frame 433 is a metal frame, and each Z-axis linkage frame 433 is provided with a screw nut that can cooperate with the Z-axis screw rod 432. The Z-axis of the two Z-axis displacement components 43 The screw nuts of the linkage frame 433 are respectively mounted on the two Z-axis screw rods 432, so that the Z-axis motor 431 can drive the Z-axis linkage frame 433 to rise and fall through the Z-axis screw rod 432; thereby, two Z-axis displacement components 43 are formed, wherein one Z-axis displacement component 43 is arranged at the upper half of the Z-axis bracket 45, and the other Z-axis displacement component 43 is arranged at the lower half of the Z-axis bracket 45, and the moving parts of the two Z-axis displacement components 43 are the two Z-axis linkage frames 433. The displacement mechanism 4 further includes a Z-axis guide rail 44, which is provided with two Z-axis guide rails 44, both of which are linear guide rails, and a slider is sleeved thereon. The two Z-axis guide rails 44 are both vertically fixed on the Z-axis bracket 45, located on both sides of the Z-axis screw rod 432 and parallel to the Z-axis screw rod 432. The two Z-axis guide rails 44 pass through the upper and lower halves of the Z-axis bracket 45, that is, the two Z-axis displacement components 43 composed of the Z-axis motor 431, the Z-axis screw rod 432 and the Z-axis linkage frame 433 share the two Z-axis guide rails 44. The X-axis displacement component 41 links the Y-axis displacement component 42 to move along the X-axis direction, and the Y-axis displacement component 42 links the Z-axis displacement component 43 to move along the Y-axis direction. Further, an accordion cover 47 is fixed on the X-axis base plate 415 and the Z-axis bracket 45 respectively to protect the X-axis displacement component 41 and the Z-axis displacement component 43.

[0065] See also Figure 12-Figure 17The first abrasive belt grinding mechanism 5 includes a first bracket assembly 51, a first driving wheel assembly 52, a driven wheel assembly 54 and a first abrasive belt 55. The first bracket assembly 51 is a metal assembly, which includes a main bracket 511 and an abrasive belt support plate 512; the main bracket 511 is composed of a horizontal plate and a vertical plate, and the abrasive belt support plate 512 is fixed on the horizontal plate of the main bracket 511 and is perpendicular to the horizontal plate; the first abrasive belt 55 is a strip-shaped abrasive belt for grinding, which has a certain flexibility to fit the curved surface; the first driving wheel assembly 52 and the driven wheel assembly 54 are both arranged on the first bracket assembly 51, and the first driving wheel assembly 52 and the driven wheel assembly 54 tighten the first abrasive belt 55, and the part of the first abrasive belt 55 between the first driving wheel assembly 52 and the driven wheel assembly 54 is the grinding part. The driven wheel assembly 54 comprises a swing shaft 541, a swing sleeve 542, a swing arm 543 and a sanding belt driven wheel 544; the swing shaft 541 is a metal rotating shaft, which is fixed on the sanding belt supporting plate 512 of the first bracket assembly 51; the swing sleeve 542 is a cylindrical metal sleeve, and the swing arm 543 is a metal swing arm, the swing sleeve 542 is fixed to one end of the swing arm 543, and the fixing method is welding or integral molding, and the sanding belt driven wheel 544 is pivotally connected to the other end of the swing arm 543; the swing sleeve 542 is sleeved on the swing shaft 541, and a bearing is provided between the swing sleeve 542 and the swing shaft 541, and the rotating axes of the sanding belt driven wheel 544 and the swing sleeve 542 are parallel to each other; after assembly, the driven wheel assembly 54 can rotate around the swing shaft 541, that is, the swing of the driven wheel assembly 54 is realized; after assembly, the first driving wheel assembly 52 and the sanding belt driven wheel 544 tension the first sanding belt 55. Furthermore, the driven wheel assembly 54 also includes a coupling cylinder 545; the coupling cylinder 545 is fixed on the first bracket assembly 51, the piston rod of the coupling cylinder 545 points to the swing arm 543, and the piston rod of the coupling cylinder 545 is hinged at one end of the swing arm 543 close to the sand belt driven wheel 544, for example, a hinge seat is set on the top surface of the swing arm 543, and the swing arm 543 and the piston rod of the coupling cylinder 545 are connected by a pin that penetrates the hinge seat and the piston rod of the coupling cylinder 545, so as to realize the hinge between the piston rod of the coupling cylinder 545 and the swing arm 543, so that the coupling cylinder 545 can link the driven wheel assembly 54 to swing. When the piston rod of the coupling cylinder 545 is extended, the swing arm 543 is linked to swing outward; when the piston rod of the coupling cylinder 545 is retracted, the swing arm 543 is linked to swing inward.The first driving wheel assembly 52 includes a first sanding belt motor 521, a driving wheel sleeve 522 and a first sanding belt driving wheel 523; the first sanding belt motor 521 is a main shaft motor 301, one end of the driving wheel sleeve 522 is a fixed disk that can be fixed on the first sanding belt motor 521, and the other end is a sleeve portion, and one end of the first sanding belt driving wheel 523 has a rotating shaft that can penetrate the driving wheel sleeve 522; the driving wheel sleeve 522 is fixed to the first sanding belt motor 521, and a shaft for the driving wheel sleeve 522 to penetrate is provided on the sanding belt support plate 512 of the first bracket assembly 51. The sleeve portion of the driving wheel sleeve 522 passes through the through hole, so that the front end of the sleeve portion and the sand belt driven wheel 544 are both located on the same side of the sand belt support plate 512; the rotating shaft of the first sand belt driving wheel 523 passes through the driving wheel sleeve 522 and is connected to the rotating shaft of the first sand belt motor 521, so that the first sand belt motor 521 can drive the first sand belt driving wheel 523 to rotate, and a bearing is provided between the rotating shaft of the first sand belt driving wheel 523 and the driving wheel sleeve 522; after the assembly is completed, the first sand belt driving wheel 523 and the driven wheel assembly 54 tension the first sand belt 55. In each first sand belt grinding mechanism 5, the first sand belt 55 is supported and tensioned by the first sand belt driving wheel 523 and the sand belt driven wheel 544. When the first sand belt driving wheel 523 rotates, it drives the first sand belt to run, and the sand belt driven wheel 544 rotates with the first sand belt 55. Furthermore, the first abrasive belt grinding mechanism 5 also includes a tensioning adjustment component 53 for adjusting the tensioning force and angle of the first abrasive belt driving wheel 523. The tensioning adjustment component 53 includes a sleeve slide 531, a tensioning slide 533 and a first tensioning cylinder 534; the tensioning slide 533 is a slide with a clamping rib, and there are two tensioning slides 533, and the two tensioning slides 533 are horizontally fixed on the abrasive belt support plate 512 of the first bracket assembly 51; the main body of the sleeve slide 531 is a vertically arranged metal plate, and two parallel wing plates are horizontally arranged on the sleeve slide 531, and a through hole is also opened on the sleeve slide 531 for the sleeve portion of the driving wheel sleeve 522 to pass through, and the driving wheel sleeve 522 After passing through the through hole, it is pivoted to the wing plate of the sleeve slide 531 through the pivot pin 532; the sleeve slide 531 is inserted between the two tensioning slides 533, and the clamping ribs of the tensioning slide 533 clamp the upper and lower sides of the sleeve slide 531, so that the sleeve slide 531 can slide on the tensioning slide 533; the first tensioning cylinder 534 is fixed to one end of the sanding belt support plate 512, and the piston rod of the first tensioning cylinder 534 is fixedly connected to the sleeve slide 531, so that the first tensioning cylinder 534 can link the sleeve slide 531 to slide on the tensioning slide 533.When the piston rod of the first tensioning cylinder 534 retracts, the sleeve slide plate 531 and the driving wheel sleeve 522 are pulled to pull up the first sanding belt driving wheel 523, thereby increasing the tensioning force of the first sanding belt driving wheel 523 on the first sanding belt 55; when the piston rod of the first tensioning cylinder 534 extends, the sleeve slide plate 531 and the driving wheel sleeve 522 are pushed out to push out the first sanding belt driving wheel 523, thereby reducing the tensioning force of the first sanding belt driving wheel 523 on the first sanding belt 55. The tension adjustment assembly 53 also includes a swivel 535, an adjustment lever 536 and a swivel plate 537; the swivel plate 537 is straddled and fixed to the two wing plates of the sleeve slide plate 531, and the swivel 535 passes through the swivel plate 537 and is threadedly engaged with the swivel plate 537; the adjustment lever 536 is a crank connecting rod, the middle of which is a pivot axis, and the pivot axis of the adjustment lever 536 is straddled and pivotally connected to the two wing plates of the sleeve slide plate 531; the two ends of the adjustment lever 536 are respectively The rotating shaft 535 is pivotally connected to the rotating shaft 535 and the driving wheel sleeve 522; wherein, the driving wheel sleeve 522 is provided with a clamping arm 538 which cooperates with one end of the adjusting lever 536, and the clamping arm 538 clamps one end of the adjusting lever 536 to realize the pivotal connection between the adjusting lever 536 and the driving wheel sleeve 522; one end of the rotating shaft 535 is a handle, and the other end is a clamping wheel, and one end of the adjusting lever 536 is clamped by the clamping wheel to realize the pivotal connection between the adjusting lever 536 and the rotating shaft 535. When the handle of the rotating shaft 535 is rotated, the clamping wheel of the rotating shaft 535 moves to the inside or outside of the rotating shaft plate 537, thereby pulling one end of the adjusting lever 536 pivoted at the rotating shaft 535 and prying the adjusting lever 536, so that the other end of the adjusting lever 536 pivoted at the driving wheel sleeve 522 moves, thereby adjusting the angle of the driving wheel sleeve 522 relative to the sleeve slide plate 531, and then adjusting the angle of the first sanding belt driving wheel 523. Furthermore, a chip hood 56 that half surrounds the first sanding belt 55 is fixed to the front side of the sanding belt support plate 512, and an air pipe interface 561 that is connected to the inside of the chip hood 56 is provided on the chip hood 56. The air pipe of the dust collection device is connected to the air pipe interface 561. After the dust collection device is running, negative pressure is generated inside the chip hood 56, and the debris generated during the grinding process is sucked into the dust collection device through the air pipe interface 561 and the air pipe, thereby preventing the debris generated during the grinding process from splashing. Furthermore, a dust cover 57 that half surrounds the tension adjustment component 53 is fixed to the rear side of the sanding belt support plate 512 to prevent dust and debris from entering the tension adjustment component 53.The first bracket assembly 51 of the first belt grinding mechanism 5 is fixed on the Z-axis linkage frame 433. Specifically, the main bracket 511 in each first belt grinding mechanism 5 is fixed on a Z-axis linkage frame 433 by bolts, and the main bracket 511 is also fixed to the slider of the Z-axis guide rail 44, so that the two Z-axis displacement assemblies 43 respectively link the two first belt grinding mechanisms 5 to move along the Z-axis direction; the two first belt grinding mechanisms 5 are opposite to each other on the Z-axis displacement assembly 43, so that the grinding parts of the first belts 55 of the two first belt grinding mechanisms 5 are opposite to each other, and the Z-axis displacement assembly 43 links the two first belt grinding mechanisms 5 to close or separate along the Z-axis direction, so that the first belts 55 of the two first belt grinding mechanisms 5 can approach or move away from the workpiece to be polished from the upper and lower surfaces respectively. The X-axis bottom plate 415 in the displacement mechanism 4 that drives the first belt grinding mechanism 5 to move is fixed on the frame 9, so that the displacement mechanism 4 and the first belt grinding mechanism 5 are located next to the turntable mechanism 1. The lower clamping block 205 and the upper clamping block 207 of the clamping mechanism 2 face the area between the two first belt grinding mechanisms 5. After the clamping mechanism 2 clamps the padlock 10, the padlock body extends to the area between the two first belt grinding mechanisms 5 and is located between the two first belts 55 of the two first belt grinding mechanisms 5 that are opposite to each other.

[0066] See also Figure 18-Figure 23The second abrasive belt grinding mechanism 6 includes a second bracket assembly 61, a second driving wheel assembly 62, a fixed driven wheel assembly 63, a movable driven wheel assembly 64, a pressure sand belt assembly 65 and a second abrasive belt 66. The second bracket assembly 61 is a metal assembly, which includes a main support plate 611 and a sand belt motor bracket 612, and the sand belt motor bracket 612 is fixed to the rear side of the main support plate 611; the second abrasive belt 66 is a strip-shaped abrasive belt for grinding, which has a certain flexibility; the second driving wheel assembly 62, the fixed driven wheel assembly 63, the movable driven wheel assembly 64 and the pressure sand belt assembly 65 are all arranged on the second bracket assembly 61, and the second driving wheel assembly 62, the fixed driven wheel assembly 63 and the movable driven wheel assembly 64 tension the second abrasive belt 66, and the pressure sand belt assembly 65 presses the second abrasive belt 66 from the inner side of the tensioned second abrasive belt 66, and the part of the second abrasive belt 66 pressed by the pressure sand belt assembly 65 is the grinding part. Specifically, the second driving wheel assembly 62 includes a second sanding belt motor 621, a first transmission wheel 622, a first transmission belt 623, a second sanding belt driving wheel 624 and a driving wheel shaft 625; the second sanding belt motor 621 is fixed to the sanding belt motor bracket 612 of the second bracket assembly 61, and a first transmission wheel 622 is sleeved on the rotating shaft of the second sanding belt motor 621; the driving wheel shaft 625 is pivotally connected to the second bracket assembly 61, specifically, a bearing is passed through the main support plate 611 of the second bracket assembly 61, and the driving wheel shaft 625 is inserted into The bearing; a first transmission wheel 622 is sleeved on one end of the driving wheel shaft 625, and the second sanding belt driving wheel 624 is sleeved on the other end of the driving wheel shaft 625. The first transmission belt 623 is transmitted between the two first transmission wheels 622, so that the second sanding belt motor 621 can drive the second sanding belt driving wheel 624 to rotate; in this embodiment, the first transmission belt 623 is a transmission belt, and correspondingly, the first transmission wheel 622 is a pulley; in other embodiments, the first transmission belt 623 is a synchronous belt, and correspondingly, the first transmission wheel 622 is a synchronous wheel. Specifically, the fixed driven wheel assembly 63 includes a fixed driven wheel 631 and a fixed driven wheel shaft 632; the fixed driven wheel 631 is pivotally connected to the second bracket assembly 61 through the fixed driven wheel shaft 632. Specifically, the fixed driven wheel shaft 632 is fixed on the main support plate 611 of the second bracket assembly 61, and the fixed driven wheel 631 is sleeved on the fixed driven wheel shaft 632. A bearing is provided between the fixed driven wheel 631 and the fixed driven wheel shaft 632.Specifically, the movable driven wheel assembly 64 includes a movable driven wheel 641, a driven wheel pivot frame 642 and a second tensioning cylinder 643; the cylinder body of the second tensioning cylinder 643 is fixed on the main support plate 611 of the second bracket assembly 61; the movable driven wheel 641 is pivoted on the driven wheel pivot frame 642, specifically, the driven wheel pivot frame 642 is a metal frame, which is provided with a pivot shaft for pivoting the movable driven wheel 641, the movable driven wheel 641 is sleeved on the pivot shaft, and a bearing is provided between the movable driven wheel 641 and the pivot shaft of the driven wheel pivot frame 642; the driven wheel pivot frame 642 is fixed to the front end of the piston rod of the second tensioning cylinder 643, so that the second tensioning cylinder 643 can link the movable driven wheel 641 to rise and fall through the driven wheel pivot frame 642. After assembly, the second sanding belt driving wheel 624, the fixed driven wheel assembly 63 and the movable driven wheel assembly 64 are all located on the same surface of the main support plate 611, and the second driving wheel assembly 62, the fixed driven wheel assembly 63 and the movable driven wheel assembly 64 tension the second sanding belt 66 into a triangle, that is, the second sanding belt driving wheel 624, the fixed driven wheel 631 and the movable driven wheel 641 are used as three vertices to tension the second sanding belt 66 into a triangle. When the piston rod of the second tensioning cylinder 643 is extended, the movable driven wheel 641 is lifted, thereby increasing the tension of the movable driven wheel 641 on the second sanding belt 66; when the piston rod of the second tensioning cylinder 643 is retracted, the movable driven wheel 641 is pulled back, thereby reducing the tension of the movable driven wheel 641 on the second sanding belt 66. The sand-pressing belt assembly 65 comprises a sand-pressing belt cylinder 651, a pressing plate 652, an elastic member 653 and a contact plate 654; the cylinder body of the sand-pressing belt cylinder 651 is fixed on the main support plate 611 of the second bracket assembly 61; the pressing plate 652 is a metal flat plate, which is fixed on the piston rod of the sand-pressing belt cylinder 651; the contact plate 654 is a metal plate with a flat surface; the elastic member 653 is a plastic member with elastic force, such as rubber and silicone; the contact plate 654 is connected to the pressing plate 652 through the elastic member 653, that is, one end of the elastic member 653 is connected to the contact plate 654, and the other end is connected to the pressing plate 652; the screw passes through After pressing the movable plate 652, screw in the elastic member 653 to realize the connection between the elastic member 653 and the pressing plate 652; similarly, after the screw passes through the contact plate 654, screw in the elastic member 653 to realize the connection between the elastic member 653 and the contact plate 654; the contact plate 654 is connected to the four corners of the pressing plate 652 with an elastic member 653; after the assembly is completed, the entire pressing sand belt assembly 65 is located on the inner side of the triangle opened by the second sand belt 66, and the contact plate 654 is aligned with the second sand belt 66 from the inner side of the second sand belt 66, and the aligned part of the contact plate 654 is located between the second sand belt driving wheel 624 and the fixed driven wheel 631.After the piston rod of the sand belt pressing cylinder 651 is extended, the contact plate 654 can contact and press the second sand belt 66. The part of the second sand belt 66 pressed by the contact plate 654 is the grinding part. When the grinding part contacts the workpiece to be processed, the contact plate 654 can press the grinding part of the second sand belt 66 onto the plane of the workpiece to be processed, thereby realizing the plane grinding process; the elastic member 653 can buffer the force applied by the sand belt pressing cylinder 651 to the contact plate 654 to protect the workpiece to be processed and the sand belt pressing cylinder 651. Further, the second sand belt grinding mechanism 6 also includes a sand belt cover 67 that semi-surrounds the second sand belt 66. The sand belt cover 67 is a metal cover body. The sand belt cover 67 is fixed on the main support plate 611 of the second bracket assembly 61. The cover body of the sand belt cover 67 surrounds the rest of the second sand belt 66 except the grinding part. The second bracket assembly 61 of the second sanding belt grinding mechanism 6 is fixed on the Z-axis linkage frame 433. Specifically, the main support plate 611 in each second sanding belt grinding mechanism 6 is fixed on a Z-axis linkage frame 433 by bolts, and the main support plate 611 is also fixed to the slider of the Z-axis guide rail 44, so that the two Z-axis displacement assemblies 43 respectively link the two second sanding belt grinding mechanisms 6 to move along the Z-axis direction; the two second sanding belt grinding mechanisms 6 are opposite to each other on the Z-axis displacement assembly 43, so that the grinding parts of the second sanding belts 66 of the two second sanding belt grinding mechanisms 6 are opposite to each other, and the Z-axis displacement assembly 43 links the two second sanding belt grinding mechanisms 6 to close or separate along the Z-axis direction, so that the grinding parts of the second sanding belts 66 of the two second sanding belt grinding mechanisms 6 can approach or move away from the workpiece to be polished from the upper and lower sides respectively. The X-axis bottom plate 415 in the displacement mechanism 4 driving the second belt grinding mechanism 6 is fixed on the frame 9, so that the displacement mechanism 4 and the second belt grinding mechanism 6 are located beside the turntable mechanism 1. The lower clamping block 205 and the upper clamping block 207 of the clamping mechanism 2 face the area between the two second belt grinding mechanisms 6. After the clamping mechanism 2 clamps the padlock 10, the padlock body extends to the area between the two second belt grinding mechanisms 6 and is located between the two second belts 66 of the two second belt grinding mechanisms 6 that are opposite to each other.

[0067] See also Figure 24-Figure 29The first polishing mechanism 7 includes a third bracket assembly 71, a driving shaft assembly 72, a swing arm assembly 73, a nylon wheel assembly 74 and a transmission assembly 75. The third bracket assembly 71 is a metal assembly, which includes a support plate 711 and a polishing motor bracket 712, and the polishing motor bracket 712 is fixed to the rear side of the support plate 711; the driving shaft assembly 72 is arranged on the third bracket assembly 71, the swing arm assembly 73 is pivotally connected to the third bracket assembly 71, the nylon wheel assembly 74 is arranged on the swing arm assembly 73, and the transmission assembly 75 is transmitted between the driving shaft assembly 72 and the nylon wheel assembly 74. Specifically, the driving shaft assembly 72 includes a first polishing motor 721, a second transmission wheel 722, a second transmission belt 723, a driving shaft 724 and a driving shaft bearing 725. The third bracket assembly 71 is provided with an active shaft sleeve 713, which is a cylindrical shaft sleeve. The support plate 711 is provided with a through hole matching the inner wall of the active shaft sleeve 713. The active shaft sleeve 713 is fixed to the support plate 711 and aligned with the through hole on the support plate 711. The active shaft 724 is inserted into the active shaft sleeve 713. Two active shaft bearings 725 are provided, both of which are located between the active shaft 724 and the active shaft sleeve 713, so as to support the active shaft 724 in the active shaft sleeve 713 and enable the active shaft 724 to rotate in the active shaft sleeve 713. One end of the active shaft 724 is inserted from the front side. The first polishing motor 721 is fixed on the polishing motor bracket 712 of the third bracket assembly 71, and a second transmission wheel 722 is respectively sleeved on the rear end of the driving shaft 724 and the rotating shaft of the first polishing motor 721. The two second transmission wheels 722 are respectively connected with the driving shaft 724 and the rotating shaft of the first polishing motor 721. The second transmission belt 723 is transmitted between the two second transmission wheels 722, so that the first polishing motor 721 can drive the driving shaft 724 to rotate through the second transmission wheel 722 and the second transmission belt 723. In this embodiment, the second transmission belt 723 is a transmission belt, and correspondingly, the second transmission wheel 722 is a pulley; in other embodiments, the second transmission belt 723 is a synchronous belt, and correspondingly, the second transmission wheel 722 is a synchronous wheel. Specifically, the swing arm assembly 73 includes a swing arm 731, a swing arm sleeve 732 and a swing arm bearing 733. The swing arm shaft sleeve 732 is sleeved on the driving shaft sleeve 713, so that the swing arm shaft sleeve 732 is coaxial with the driving shaft 724, and the swing arm bearing 733 is arranged between the swing arm shaft sleeve 732 and the driving shaft sleeve 713; one end of the swing arm 731 is connected to the swing arm shaft sleeve 732. In this embodiment, the swing arm shaft sleeve 732 is passed through one end of the swing arm 731 and is fixed to the swing arm 731 by screws; after the assembly is completed, the swing arm 731 can rotate around the axis of the swing arm shaft sleeve 732, that is, the swing arm 731 can swing on the third bracket assembly 71; the nylon wheel assembly 74 is arranged on the swing arm 731, so that the nylon wheel assembly 74 can swing with the swing arm 731.Specifically, the nylon wheel assembly 74 includes a first nylon wheel 741, a first nylon wheel shaft 742 and a nylon wheel shaft sleeve 743; the nylon wheel shaft sleeve 743 is inserted into the swing arm 731 and is located at the other end of the swing arm 731 relative to the swing arm shaft sleeve 732; the first nylon wheel shaft 742 is inserted into the nylon wheel shaft sleeve 743, and a bearing is provided between the first nylon wheel shaft 742 and the nylon wheel shaft sleeve 743, so that the first nylon wheel shaft 742 can rotate in the nylon wheel shaft sleeve 743; the first The nylon wheel 741 is a nylon wheel used for metal polishing. The first nylon wheel 741 is sleeved on one end of the first nylon wheel shaft 742 and is key-connected to the first nylon wheel shaft 742, so that the first nylon wheel 741 is located at the outermost side of the first polishing mechanism 7, and the first nylon wheel 741 can rotate together with the first nylon wheel shaft 742; the transmission assembly 75 transmits between the driving shaft 724 and the first nylon wheel shaft 742, so that the first polishing motor 721 can drive the first nylon wheel 741 to rotate. Specifically, the transmission assembly 75 includes a third transmission wheel 751 and a third transmission belt 752; a third transmission wheel 751 is respectively sleeved on the driving shaft 724 and the first nylon wheel shaft 742, and the two third transmission wheels 751 are respectively connected with the driving shaft 724 and the first nylon wheel shaft 742 by a key, and the third transmission belt 752 is transmitted between the two third transmission wheels 751; in this embodiment, the third transmission belt 752 is a synchronous belt, and correspondingly, the third transmission wheel 751 is a synchronous wheel; in other embodiments, the third transmission belt 752 is a transmission belt, and correspondingly, the third transmission wheel 751 is a pulley. Further, the first polishing mechanism 7 also includes a swing arm cylinder assembly 76 for linking the swing arm assembly 73 to swing, so as to adjust the pressure of the first nylon wheel 741 on the workpiece to be processed.Specifically, the swing arm cylinder assembly 76 includes a swing arm cylinder 761, a linkage arm 762 and a spring 763; the cylinder body of the swing arm cylinder 761 is fixed on the support plate 711 of the third bracket assembly 71; the linkage arm 762 is a metal arm, which includes a rectangular horizontal portion and a cylindrical vertical portion. The horizontal portion of the linkage arm 762 is fixed to the front end of the piston rod of the swing arm cylinder 761, and the end of the vertical portion is hinged to the swing arm 731. For example, an articulated seat is provided on the top surface of the swing arm 731, and the swing arm 731 and the linkage arm 762 are connected by a pin that penetrates the articulated seat and the vertical portion of the linkage arm 762, so as to realize the hinge connection between the vertical portion and the swing arm 731; the swing arm cylinder 761 can be connected to the linkage arm 762 through the linkage arm 762 The swing arm assembly 73 is linked to swing, that is, when the piston rod of the swing arm cylinder 761 is extended, the swing arm 731 is linked to swing toward the outside of the third bracket assembly 71 through the linking arm 762 to increase the pressure of the first nylon wheel 741 on the workpiece to be processed; when the piston rod of the swing arm cylinder 761 is retracted, the swing arm 731 is linked to swing toward the inside of the third bracket assembly 71 through the linking arm 762 to reduce the pressure of the first nylon wheel 741 on the workpiece to be processed; the spring 763 is sleeved on the vertical part of the linking arm 762 to buffer the impact of the swing arm cylinder 761 on the swing arm assembly 73 and the nylon wheel assembly 74 when the swing arm cylinder 761 is in motion, and can also buffer the impact of the first nylon wheel 741 on the swing arm cylinder 761 when it contacts the workpiece to be processed. Further, the swing arm 731 is provided with a first transmission belt cover 78 surrounding the transmission assembly 75, and the first transmission belt cover 78 is fixed on the swing arm 731 and covers the entire transmission assembly 75. Furthermore, a first nylon wheel cover 77 is provided on the swing arm 731, which semi-surrounds the first nylon wheel 741. The first nylon wheel cover 77 is fixed on the first transmission belt cover 78 and surrounds the first nylon wheel 741 half a circle; the portion of the first nylon wheel 741 not surrounded by the first nylon wheel cover 77 is the polishing portion that contacts the workpiece to be processed. The third bracket assembly 71 of the first polishing mechanism 7 is fixed on the Z-axis linkage frame 433. Specifically, the support plate 711 in each first polishing mechanism 7 is fixed on a Z-axis linkage frame 433 by bolts, and the support plate 711 is also fixed to the slider of the Z-axis guide rail 44, so that the two Z-axis displacement assemblies 43 respectively link the two first polishing mechanisms 7 to move along the Z-axis direction; the two first polishing mechanisms 7 are opposite to each other on the Z-axis displacement assembly 43, so that the polishing parts of the first nylon wheels 741 of the two first polishing mechanisms 7 are opposite to each other, and the Z-axis displacement assembly 43 links the two first polishing mechanisms 7 to close or separate along the Z-axis direction, so that the polishing parts of the first nylon wheels 741 of the two first polishing mechanisms 7 can approach or move away from the workpiece to be processed from the upper and lower surfaces respectively. The X-axis bottom plate 415 in the displacement mechanism 4 that drives the first polishing mechanism 7 to move is fixed on the frame 9, so that the displacement mechanism 4 and the first polishing mechanism 7 are located next to the turntable mechanism 1.The lower clamping block 205 and the upper clamping block 207 of the clamping mechanism 2 face the area between the two first polishing mechanisms 7. After the clamping mechanism 2 clamps the padlock 10, the padlock body extends to the area between the two first polishing mechanisms 7 and is located between the two first nylon wheels 741 of the two first polishing mechanisms 7 that are opposite to each other.

[0068] See also Figure 30-Figure 33The second polishing mechanism 8 includes a fourth bracket assembly, a second polishing motor 803, a second nylon wheel 807, a second nylon wheel axle 808, a fourth transmission wheel 804 and a fourth transmission belt 805; the second polishing motor 803 is fixed on the fourth bracket assembly, the second nylon wheel axle 808 is pivotally connected to the fourth bracket assembly, the second nylon wheel 807 is sleeved on the second nylon wheel axle 808, and the second polishing motor 803 drives the second nylon wheel axle 808 to rotate. Specifically, the fourth bracket assembly includes a vertical mounting plate 801 arranged vertically and a horizontal mounting plate 802 arranged horizontally, and the vertical mounting plate 801 and the horizontal mounting plate 802 are fixed to each other; the second polishing motor 803 is fixed on the vertical mounting plate 801 of the fourth bracket assembly, and the bottom surface of the horizontal mounting plate 802 is provided with two support seats 806 with bearings, and the second nylon wheel axle 808 passes through the bearings in the two support seats 806 respectively; the second nylon wheel 807 is sleeved on one end of the second nylon wheel axle 808 and is located on the outside of the fourth bracket assembly; a fourth transmission wheel 804 is respectively sleeved on the other end of the second nylon wheel axle 808 and the rotating shaft of the second polishing motor 803, and the fourth transmission belt 805 is transmitted between the two fourth transmission wheels 804, so that the second polishing motor 803 can drive the second nylon wheel axle 808 to rotate, and then drive the second nylon wheel 807 to rotate. Further, the second polishing mechanism 8 also includes a buffer seat 809; the buffer seat 809 is a spring buffer seat in the prior art, and the second polishing motor 803 is fixed to the fourth bracket assembly through the buffer seat 809, that is, the buffer seat 809 is fixed to the vertical mounting plate 801, and the second polishing motor 803 is fixed to the buffer seat 809; the buffer seat 809 is provided to protect the second polishing motor 803. Further, the second polishing mechanism 8 also includes a second nylon wheel cover 810 fixed to the horizontal mounting plate 802 and semi-enclosing the second nylon wheel 807, and the part of the second nylon wheel 807 not surrounded by the second nylon wheel cover 810 is the polishing part in contact with the workpiece to be processed. Further, the second polishing mechanism 8 also includes a nylon wheel axle cover 812 fixed below the horizontal mounting plate 802 and covering the support seat 806 and the second nylon wheel axle 808. Further, the second polishing mechanism 8 also includes a second transmission belt cover 811 fixed to the second polishing motor 803 and covering the fourth transmission wheel 804 and the fourth transmission belt 805.The fourth bracket assembly of the second polishing mechanism 8 is fixed on the Z-axis linkage frame 433. Specifically, the vertical mounting plate 801 in each second polishing mechanism 8 is fixed on a Z-axis linkage frame 433 by bolts, and the vertical mounting plate 801 is also fixed to the slider of the Z-axis guide rail 44, so that the two Z-axis displacement assemblies 43 respectively link the two second polishing mechanisms 8 to move along the Z-axis direction; the two second polishing mechanisms 8 are opposite to each other on the Z-axis displacement assembly 43, so that the polishing parts of the second nylon wheels 807 of the two second polishing mechanisms 8 are opposite to each other, and the Z-axis displacement assembly 43 links the two second polishing mechanisms 8 to close or separate along the Z-axis direction, so that the polishing parts of the second nylon wheels 807 of the two second polishing mechanisms 8 can approach or move away from the workpiece to be processed from the upper and lower surfaces respectively. The X-axis bottom plate 415 in the displacement mechanism 4 that drives the second polishing mechanism 8 to move is fixed on the frame 9, so that the displacement mechanism 4 and the second polishing mechanism 8 are located next to the turntable mechanism 1. The lower clamping block 205 and the upper clamping block 207 of the clamping mechanism 2 face the area between the two second polishing mechanisms 8. After the clamping mechanism 2 clamps the padlock 10, the padlock body extends to the area between the two second polishing mechanisms 8 and is located between the two second nylon wheels 807 of the two second polishing mechanisms 8 that are opposite to each other.

[0069] When the automatic padlock grinding and polishing equipment is in operation, follow the steps below:

[0070] S1, loading and unloading stage: the piston rod of the clamp cylinder 204 of a clamp mechanism 2 in front of the milling mechanism 3 retracts to open the upper clamp block 207, and the staff, external mechanism or robot removes the polished padlock 10, and places the lock hook of the padlock 10 to be processed in the U-shaped groove 206 of the lower clamp block 205, and the piston rod of the clamp cylinder 204 extends to close the upper clamp block 207 and the lower clamp block 205 to clamp the lock hook of the padlock 10.

[0071] S2, milling stage: the turntable 11 of the turntable mechanism 1 rotates 60°, so that the clamp mechanism 2 is aligned with the milling mechanism 3, the padlock 10 to be processed is located under the milling cutter 304, the spindle motor 301 has been running in advance, the piston rod of the feed cylinder 310 extends, and the spindle assembly is driven to feed, the milling cutter 304 rotating at high speed contacts the curved surface on the front side of the padlock 10, and the arched surface of the front side of the padlock 10 is milled flat, and then the piston rod of the feed cylinder 310 retracts, and the spindle assembly is driven to retract.

[0072] S3, upper and lower curved surface grinding stage: please refer to Figure 34-Figure 35, the turntable 11 of the turntable mechanism 1 rotates 60°, so that the clamp mechanism 2 is aligned with the first sanding belt grinding mechanism 5, and the padlock 10 to be processed reaches the area between the two first sanding belt grinding mechanisms 5; the first sanding belt motors 521 of the two first sanding belt grinding mechanisms 5 have been started in advance, so that the first sanding belt driving wheel 523 rotates, thereby driving the first sanding belt 55 to run; the Z-axis motor 431 runs to drive the two first sanding belt grinding mechanisms 5 to close up and down, and the first sanding belts 55 of the two first sanding belt grinding mechanisms 5 contact the padlock body. The flexible first sanding belt 55 will fit the two curved surfaces of the padlock body, thereby grinding the two curved surfaces of the padlock body. After the grinding process is completed, the Z-axis motor 431 runs again to drive the two first sanding belt grinding mechanisms 5 to separate up and down.

[0073] S4, side plane grinding stage: please refer to Figure 36-Figure 37 , the turntable 11 of the turntable mechanism 1 rotates 60°, so that the clamp mechanism 2 is aligned with the second abrasive belt grinding mechanism 6, and the padlock 10 to be processed reaches the area between the two second abrasive belt grinding mechanisms 6; the rotating shaft of the clamp motor 202 rotates 90°, so that the clamp swivel seat 203, the clamp cylinder 204, the lower clamp block 205 and the upper clamp block 207 rotate 90° to rotate the two side planes of the padlock body to the horizontal direction; the second abrasive belt motors 621 of the two second abrasive belt grinding mechanisms 6 have been started in advance, so that the second abrasive belt motors 621 are aligned with the second abrasive belt grinding mechanisms 6. The moving wheel 624 rotates, thereby driving the second sanding belt 66 to run; the piston rod of the sanding belt pressing cylinder 651 extends to push out the contact plate 654 and press the second sanding belt 66, and the Z-axis motor 431 runs to drive the two second sanding belt grinding mechanisms 6 to close up and down, and the second sanding belts 66 of the two second sanding belt grinding mechanisms 6 contact the two side planes of the padlock body, and the contact plate 654 of the sanding belt pressing assembly 65 can press the second sanding belt 66 tightly against the side plane of the padlock body, thereby grinding the two side planes of the padlock body. After the grinding process is completed, the Z-axis motor 431 runs again to drive the two second sanding belt grinding mechanisms 6 to separate up and down.

[0074] S5, upper and lower curved surface polishing stage: please refer to Figure 38-Figure 39, the turntable 11 of the turntable mechanism 1 rotates 60°, so that the fixture mechanism 2 is aligned with the first polishing mechanism 7, and the padlock 10 to be processed reaches the area between the two first polishing mechanisms 7; the rotating shaft of the fixture motor 202 rotates 90°, so that the fixture rotating seat 203, the fixture cylinder 204, the lower clamping block 205 and the upper clamping block 207 rotate 90°, so as to rotate the two curved surface planes of the padlock body to the horizontal direction; the first polishing motors 721 of the two first polishing mechanisms 7 have been started in advance, and the first polishing motor 721 drives the first nylon wheel 741 to rotate through the driving shaft 724 and the transmission assembly 75, and the Z-axis motor 431 runs to drive the two first polishing mechanisms 7 to close up and down, and the first nylon wheels 741 of the two first polishing mechanisms 7 contact the upper and lower curved surfaces of the padlock body, thereby polishing the upper and lower curved surfaces of the padlock body. After the polishing process is completed, the Z-axis motor 431 runs again to drive the two first polishing mechanisms 7 to separate up and down.

[0075] S6, side plane polishing stage: please refer to Figure 40-41 , the turntable 11 of the turntable mechanism 1 rotates 60°, so that the clamp mechanism 2 is aligned with the second polishing mechanism 8, and the padlock 10 to be processed reaches the area between the two second polishing mechanisms 8; the rotating shaft of the clamp motor 202 rotates 90°, so that the clamp swivel 203, the clamp cylinder 204, the lower clamp block 205 and the upper clamp block 207 rotate 90° to rotate the two side planes of the padlock body to the horizontal direction; the second polishing motors 803 of the two second polishing mechanisms 8 have been started in advance, and the second polishing motor 803 drives the second nylon wheel 807 to rotate through the fourth transmission wheel 804 and the fourth transmission belt 805, and the Z-axis motor 431 runs to drive the two second polishing mechanisms 8 to close up and down, and the second nylon wheels 807 of the two second polishing mechanisms 8 contact the two side planes of the padlock body, thereby polishing the two side planes of the padlock body. After the polishing process is completed, the Z-axis motor 431 runs again to drive the two second polishing mechanisms 8 to separate up and down.

[0076] S7, reset stage: the shaft of the clamp motor 202 rotates 90°, so that the clamp swivel 203, the clamp cylinder 204, the lower clamp block 205 and the upper clamp block 207 rotate 90° to rotate the two curved surfaces of the padlock body to the horizontal direction; the turntable 11 of the turntable mechanism 1 rotates 60° to align the clamp mechanism 2 with the staff, external mechanism or robot, and return to step S1.

[0077] Repeating the above steps can complete the automated surface treatment process of milling, grinding and polishing the padlock body. It can be understood that since the turntable mechanism 1 is provided with six clamp mechanisms 2 corresponding to six workstations, the above steps S1-S7 are performed simultaneously.

[0078] This padlock automatic grinding and polishing equipment is provided with a milling mechanism 3, a first sanding belt grinding mechanism 5, a second sanding belt grinding mechanism 6, a first polishing mechanism 7 and a second polishing mechanism 8 in sequence along the running direction of the turntable mechanism 1, and can automatically complete the milling, grinding and polishing processes of multiple surfaces in the padlock body, thereby improving the degree of automation of the padlock production line, improving production efficiency and reducing production costs.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic padlock grinding and polishing device, characterized in that: It comprises a turntable mechanism, wherein a clamp mechanism for clamping and flipping a padlock is disposed circumferentially on the turntable mechanism, and a milling mechanism for milling a padlock body, a first sanding belt grinding mechanism for grinding the front and back curved surfaces of the padlock body, a second sanding belt grinding mechanism for grinding the side plane of the padlock body, a first polishing mechanism for polishing the front and back curved surfaces of the padlock body, and a second polishing mechanism for polishing the side plane of the padlock body are sequentially disposed along the running direction of the turntable mechanism; The milling mechanism includes a spindle assembly, a feed table assembly, a milling cutter traverse slide, a milling cutter advance and retreat slide, and a milling cutter lifting slide; The milling cutter transverse slide links the milling cutter advance and retreat slide to move along the tangential direction of the turntable mechanism, the milling cutter advance and retreat slide links the milling cutter lifting slide to move along the radial direction of the turntable mechanism, and the milling cutter lifting slide links the feed table assembly to rise and fall; the front end of the spindle assembly is a milling cutter for milling the padlock body, the spindle assembly is arranged on the feed table assembly, and the feed table assembly links the spindle assembly to feed; The first abrasive belt grinding mechanism, the second abrasive belt grinding mechanism, the first polishing mechanism and the second polishing mechanism are respectively driven to move by a displacement mechanism; The displacement mechanism includes an X-axis displacement component, a Y-axis displacement component and a Z-axis displacement component; the X-axis displacement component links the Y-axis displacement component to move along the X-axis direction, and the Y-axis displacement component links the Z-axis displacement component to move along the Y-axis direction; the first belt grinding mechanism, the second belt grinding mechanism, the first polishing mechanism and the second polishing mechanism are respectively arranged on the Z-axis displacement component of the displacement mechanism; The first abrasive belt grinding mechanism comprises a first bracket assembly, a first driving wheel assembly, a driven wheel assembly and a first abrasive belt; the first driving wheel assembly and the driven wheel assembly are both arranged on the first bracket assembly, the first driving wheel assembly and the driven wheel assembly tension the first abrasive belt, and the portion of the first abrasive belt between the first driving wheel assembly and the driven wheel assembly is a grinding portion; The first belt grinding mechanisms are provided with two; the first bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two first belt grinding mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two first belt grinding mechanisms to close or separate along the Z-axis direction; The second abrasive belt grinding mechanism comprises a second bracket assembly, a second driving wheel assembly, a fixed driven wheel assembly, a movable driven wheel assembly, a pressing sand belt assembly and a second abrasive belt; the second driving wheel assembly, the fixed driven wheel assembly, the movable driven wheel assembly and the pressing sand belt assembly are all arranged on the second bracket assembly, the second driving wheel assembly, the fixed driven wheel assembly and the movable driven wheel assembly tension the second abrasive belt, the pressing sand belt assembly presses the second abrasive belt from the inner side of the tensioned second abrasive belt, and the portion of the second abrasive belt pressed by the pressing sand belt assembly is the grinding portion; The second belt grinding mechanism is provided with two; the second bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two second belt grinding mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two second belt grinding mechanisms to close or separate along the Z-axis direction; The first polishing mechanism comprises a third bracket assembly, a driving shaft assembly, a swing arm assembly, a nylon wheel assembly and a transmission assembly; the driving shaft assembly is arranged on the third bracket assembly, the swing arm assembly is pivotally connected to the third bracket assembly, the nylon wheel assembly is arranged on the swing arm assembly, and the transmission assembly transmits between the driving shaft assembly and the nylon wheel assembly; The first polishing mechanisms are provided with two; the third bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two first polishing mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two first polishing mechanisms to close or separate along the Z-axis direction; The second polishing mechanism comprises a fourth bracket assembly, a second polishing motor, a second nylon wheel and a second nylon wheel axle; the second polishing motor is fixed to the fourth bracket assembly, the second nylon wheel axle is pivotally connected to the fourth bracket assembly, the second nylon wheel is sleeved on the second nylon wheel axle, and the second polishing motor drives the second nylon wheel axle to rotate; There are two second polishing mechanisms; the fourth bracket assembly is fixed on the corresponding moving part of the Z-axis displacement assembly, the two second polishing mechanisms are opposite to each other on the Z-axis displacement assembly, and the Z-axis displacement assembly links the two second polishing mechanisms to close or separate along the Z-axis direction.

2. The automatic padlock grinding and polishing device according to claim 1, characterized in that: The clamp mechanism includes a clamp base, a clamp motor, a clamp swivel, a clamp cylinder, a lower clamp block and an upper clamp block; the clamp base is fixed on the turntable of the turntable mechanism, and the clamp motor is fixed on the clamp base; the lower clamp block is provided with a U-shaped groove matching the lock hook of the padlock, the clamp cylinder and the lower clamp block are both fixed on the clamp swivel, and the clamp cylinder drives the upper clamp block to move closer to or away from the lower clamp block; the clamp motor drives the clamp swivel to rotate.

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