Clamping mechanism and bead turning machine

Abstract

The utility model relates to the field of numerical control machine tools, in particular to a clamping mechanism and a bead turning machine. The clamping mechanism comprises at least two clamping sets and a second rotary driving part, each clamping set comprises at least two clamping units, each clamping unit comprises an ejector pin shaft with a groove, an ejector pin and a locking cap, the ejector pin shafts are fixed to the second rotary driving part, the ejector pins are installed in the grooves, and the locking caps are fixed to the ejector pin shafts. The locking cap is installed at the opening end of the groove in an elastic mode so that the ejector pin can be replaced. The clamping mechanism is provided with the locking cap, the locking cap is installed at the opening end of the groove in an elastic mode, the locking cap is loosened and tightened, the ejector pins of various styles can be replaced, beads of different shapes can be machined, and adaptability is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool field, concretely relates to a clamping mechanism and bead lathe. BACKGROUND

[0002] The bead lathe is used for processing jewelry, ornaments, and the processing process precision of jewelry, ornaments with circular or arc surfaces such as beads and long beads is high, the bead lathe fixes and clamps beads to facilitate the processing mechanism to process the bead surface, different shapes of beads need to be equipped with different thimbles to realize effective clamping, in the existing clamping mechanism, the thimble is fixedly installed, only the beads with corresponding shapes can be processed, and the adaptability is poor. SUMMARY

[0003] The utility model discloses in order to solve the above-mentioned existing bead lathe adaptability poor technical problem, provides a kind of clamping mechanism and bead lathe of replaceable thimble, wide adaptability.

[0004] A clamping mechanism includes at least two groups of clamping groups and a second rotary drive member. Each clamping group includes at least two clamping units. Each clamping unit includes a thimble shaft with a groove, a thimble, and a locking cap. The thimble shaft is fixed to the second rotary drive member. The thimble is installed in the groove. The locking cap is loosely installed at the opening end of the groove to replace the thimble.

[0005] A bead lathe includes a frame, a feeding mechanism, a waiting mechanism, a feeding mechanism, a clamping mechanism, and a processing mechanism. The clamping mechanism includes at least two groups of clamping groups and a second rotary drive member. Each clamping group includes at least two clamping units. Each clamping unit includes a thimble shaft with a groove, a thimble, and a locking cap. The thimble shaft is fixed to the second rotary drive member. The thimble is installed in the groove. The locking cap is loosely installed at the opening end of the groove to replace the thimble.

[0006] Compared with the prior art, the clamping mechanism provided in the embodiments of the utility model is provided with a locking cap, which is loosely installed at the opening end of the groove. By loosening or tightening the locking cap, various styles of thimbles can be replaced to process beads of different shapes, and the adaptability is wide. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0008] Figure 1The utility model provides a kind of three-dimensional structure assembly schematic diagram of bead machine;

[0009] Figure 2 For Figure 1 The three-dimensional structure assembly schematic diagram of feed mechanism, standby mechanism and clamping mechanism shown in the drawing;

[0010] Figure 3 For Figure 2 The three-dimensional structure assembly schematic diagram of standby mechanism shown in the drawing;

[0011] Figure 4 For Figure 3 The partial three-dimensional structure exploded schematic diagram of standby mechanism one angle shown in the drawing;

[0012] Figure 5 For Figure 3 The partial three-dimensional structure exploded schematic diagram of standby mechanism another angle shown in the drawing;

[0013] Figure 6 For Figure 1 The three-dimensional structure assembly schematic diagram of feeding mechanism shown in the drawing;

[0014] Figure 7 For Figure 6 The three-dimensional structure exploded schematic diagram of feeding mechanism shown in the drawing;

[0015] Figure 8 For Figure 2 The three-dimensional structure assembly schematic diagram of clamping mechanism one angle shown in the drawing;

[0016] Figure 9 For Figure 2 The three-dimensional structure assembly schematic diagram of clamping mechanism another angle shown in the drawing;

[0017] Figure 10 For Figure 2 The three-dimensional structure exploded schematic diagram of clamping unit shown in the drawing;

[0018] Figure 11 For Figure 10 The sectional view of clamping unit shown in the drawing;

[0019] Figure 12 For Figure 9 The three-dimensional structure assembly schematic diagram of top-to-top subassembly shown in the drawing;

[0020] Figure 13 For Figure 1 The three-dimensional structure assembly schematic diagram of processing mechanism shown in the drawing;

[0021] Figure 14 For Figure 13 The three-dimensional structure assembly schematic diagram of tool magazine shown in the drawing;

[0022] Figure 15 ForFigure 1 The perspective structural assembly view of the batch flower assembly shown;

[0023] Figure 16 For Figure 1 The perspective structural assembly view of the detection mechanism shown;

[0024] Figure 17 For Figure 15 The perspective structural exploded view of the detection mechanism shown. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] In the embodiments of the present application, the terms "first", "second" are only used for description purposes, to distinguish objects such as substances from each other, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. For example, without departing from the scope of the embodiments of the present application, the first XX can also be referred to as the second XX, and similarly, the second XX can also be referred to as the first XX. Therefore, the features with "first" and "second" can explicitly or implicitly include one or more of the features.

[0027] It should be understood that when one element is referred to as "connected", "coupled", "cooperated", "attached", "fixed", "abutted" or the like to another element, it can be directly connected to the other element, or there can be an indirect connection. Conversely, when one element is referred to as "directly connected", "directly coupled" or the like to another element, there is no intermediate element. Other words used to describe the relationship between elements should be interpreted in a similar manner (for example, "between" and "directly between", "adjacent" and "directly adjacent", etc.).

[0028] Please refer to Figure 1 and Figure 2 wherein, Figure 1 The perspective structural assembly view of a bead turning machine provided by the present application, Figure 2 For Figure 1 The perspective structural assembly view of the feeding mechanism, the material waiting mechanism and the clamping mechanism shown. The bead turning machine 100 provided in the embodiments of the present application is used for machining a workpiece to be machined 200, and the workpiece to be machined 200 can be jewelry or ornaments with a circular or arc surface. The bead turning machine 100 can be specifically used for turning beads and carving and batch flowers of jewelry beads.

[0029] The bead machine 100 comprises a frame 10, a feeding device arranged on the frame 10, a clamping mechanism 50, a processing mechanism 60 and a detection mechanism 70. The feeding device comprises a feeding mechanism 20, a standby mechanism 30 and a feeding mechanism 40 arranged in sequence. The feeding mechanism 20 is used for feeding the workpiece 200 to be processed. The standby mechanism 30 receives the workpiece 200 to be processed transmitted by the feeding mechanism 20. The feeding mechanism 40 is used for moving the workpiece 200 to be processed from the standby mechanism 30 to the processing space 500 of the clamping mechanism 50. The processing mechanism 60 is arranged in the Y-axis direction of the clamping mechanism 50 and corresponds to the workpiece 200 to be processed, which is used for processing the workpiece 200 to be processed. The detection mechanism 70 is fixed to the processing mechanism 60 and corresponds to the processing space 500, which is used for obtaining image information of the processing space 500. Figure 1 As shown in the XYZ coordinate system, the feeding mechanism 20, the standby mechanism 30 and the clamping mechanism 50 are arranged in sequence in the X-axis direction. The standby mechanism 30 receives the workpiece 200 to be processed transmitted by the feeding mechanism 20. The feeding mechanism 40 is used for moving the workpiece 200 to be processed from the standby mechanism 30 to the processing space 500 of the clamping mechanism 50. The processing mechanism 60 is arranged in the Y-axis direction of the clamping mechanism 50 and corresponds to the workpiece 200 to be processed, which is used for processing the workpiece 200 to be processed. The detection mechanism 70 is fixed to the processing mechanism 60 and corresponds to the processing space 500, which is used for obtaining image information of the processing space 500.

[0030] The feeding mechanism 20 comprises a vibrating disc connecting seat 21, a vibrating disc 23 and a feeding channel 25. The vibrating disc connecting seat 21 is fixed to the frame 10. The vibrating disc 23 is arranged on the vibrating disc connecting seat 21. The vibrating disc 23 vibrates at a predetermined frequency. The vibrating disc 23 has a discharge port 231 corresponding to one end of the feeding channel 25. The workpiece 200 to be processed slides into the feeding channel 25 through the discharge port 231. In this embodiment, the feeding channel 25 is tubular.

[0031] Please refer to the following drawings: Figure 2 Figure 3 Figure 3 Figure 2 The standby mechanism 30 is in communication with the feeding channel 25. The feeding channel 25 extends towards the standby mechanism 30 and is inclined towards the negative half-axis direction of the Z-axis. The standby mechanism 30 comprises an adjusting sliding platform 31, a rotating power assembly 32, a bottom plate 33, a first transmission shaft 34, a second transmission shaft 35, a guide frame 36, a sensor mounting bracket 37 and a sensor 38. The adjusting sliding platform 31, the rotating power assembly 32 and the bottom plate 33 are fixed in sequence along the positive half-axis direction of the Z-axis. The first transmission shaft 34, the second transmission shaft 35 and the guide frame 36 are fixed on the bottom plate 33. The sensor mounting bracket 37 is fixed to the rotating power assembly 32. The sensor 38 is fixed to the sensor mounting bracket 37.

[0032] Please refer to the following drawings: Figure 4 Figure 5 Figure 4 Figure 3 Figure 5 Figure 3 ​​​​​​​​Another perspective view of the shown material preparation mechanism. The adjustment slide 31 includes a first adjustment block 311, a second adjustment block 312, a third adjustment block 313, a first adjustment rod 314, a second adjustment rod 315, and a third adjustment rod 316, which are used to fine-tune the position of the rotary power assembly 32 in the Y-axis direction and the Z-axis direction. The first adjustment block 311 and the second adjustment block 312 are connected by a slide rail slider structure extending along the Y-axis direction, and the first adjustment block 311 is provided with a first slide hole 3111 extending along the Y-axis direction, and the second adjustment block 312 is provided with a column 3121 with a through hole extending along the X-axis direction, which is inserted into the first slide hole 3111, and the first adjustment rod 314 penetrates the first adjustment block 311 and is inserted into the column 3121. By adjusting the first adjustment rod 314, the second adjustment block 312 moves relative to the first adjustment block 311 along the Y-axis direction, and the third adjustment block 313 moves synchronously with the second adjustment block 312, and the first adjustment rod 314 can be a threaded adjustment rod, which is screwed with the column 3121 to adjust the position of the second adjustment block 312 by rotating. The second adjustment block 312 and the third adjustment block 313 are connected by a slide rail slider structure extending along the Z-axis direction, the second adjustment rod 315 penetrates the second adjustment block 312 and is inserted between the slide rail of the second adjustment block 312 and the slider of the third adjustment block 313, the second adjustment block 312 is provided with a second slide hole 3122 extending along the Z-axis direction, and the third adjustment rod 316 penetrates the second slide hole 3122 and the third adjustment block 313 in turn. By adjusting the second adjustment rod 315, the third adjustment block 313 moves relative to the second adjustment block 312 along the Z-axis direction, and after adjustment, the third adjustment rod 316 is locked with the second slide hole 3122, and the second adjustment rod 315 can be a toothed adjustment rod, which is engaged with the slider of the third adjustment block 313 to adjust the position of the third adjustment block 313 by rotating.

[0033] The rotary power assembly 32 includes a first mounting seat 321, a first rotary drive 322, a bearing rod 323, a bearing 324, a driving wheel 325, and a belt 326. The first mounting seat 321 is fixed to the third adjustment block 313, and the position of the first mounting seat 321 in the Y-axis and Z-axis directions can be adjusted by the adjustment slide 31. The bottom plate 33 is fixed to the first mounting seat 321 to form a receiving space 3210, the first rotary drive 322 is fixed to the receiving space 3210, the bearing rod 323 penetrates the first mounting seat 321 and is sleeved in the bearing 324, and the bearing 324, the driving wheel 325, the belt 326, the first transmission shaft 34, and the second transmission shaft 35 are drivingly connected by the belt 326.

[0034] The first transmission shaft 34 and the second transmission shaft 35 are arranged opposite to each other on the surface of the bottom plate 33 away from the first rotary driving member 322, forming a workpiece channel 340, the width of the workpiece channel 340 is set corresponding to the diameter of the workpiece 200 to be processed. The first rotary driving member 322 drives the first transmission shaft 34 and the second transmission shaft 35 to rotate, so that the inner hole of the workpiece 200 to be processed is arranged in order in the workpiece channel 340. The adjusting slide table 31 can adjust the position of the first mounting seat 321 by adjusting the relative position of the first adjusting block 311 and the second adjusting block 312 in the Y-axis direction, thereby adjusting the position of the workpiece channel 340 in the Y-axis direction, and similarly, the workpiece channel 340 can adjust the position of the workpiece channel 340 in the Z-axis direction by adjusting the relative position of the second adjusting block 312 and the third adjusting block 313 in the Z-axis direction, so as to be aligned with the feeding mechanism 40.

[0035] The guide frame 36 is fixed to the surface of the bottom plate 33 away from the first rotary driving member 322, and is arranged at the entrance of the workpiece channel 340, that is, in communication with the feeding channel 25 of the feeding mechanism 20, in the shape of a "J", spanning the two sides of the first transmission shaft 34 and the second transmission shaft 35, the feeding channel 25 penetrates the guide frame 36, guiding the workpiece 200 to be processed to roll into the workpiece channel 340. The inductor mounting frame 37 is arranged on the first mounting seat 321, and the inductor 38 is arranged on the inductor mounting frame 37 and corresponds to the detection position 3400, detecting whether the workpiece channel 340 has the workpiece 200 to be processed.

[0036] Among them, the belt 326 can be a polyurethane round belt.

[0037] It can be understood that the first rotary driving member 322 can be a rotary motor, and the rotary power assembly 32 can also be other power-providing devices, as long as it can drive the first transmission shaft 34 and the second transmission shaft 35 to rotate.

[0038] Please refer to Figure 6-7 , Figure 6 for Figure 1 the three-dimensional structure assembly diagram of the feeding mechanism shown, Figure 7 for Figure 6The three-dimensional structure of the feeding mechanism is shown in the exploded view. The feeding mechanism 40 includes a feeding slide rail 411, a first driving member 412, a feeding frame 413, a second driving member 414, a counterweight 415, a suction rod assembly 416, and a guide assembly 417. The feeding slide rail 411 extends along the X-axis direction, i.e., the feeding slide rail 411 extends along the direction from the feeding mechanism 30 to the clamping mechanism 50. The first driving member 412 drives the feeding frame 413 to move along the feeding slide rail 411. The second driving member 414 is fixed to the feeding frame 413, and the driving rod 4141 of the second driving member 414 penetrates through the counterweight 415 and is fixedly connected with the suction rod assembly 416. The guide assembly 417 includes a linear bearing 4171 and a linear guide shaft 4172. The linear bearing 4171 is fixed to the feeding frame 413 and is sleeved with the linear guide shaft 4172. The linear guide shaft 4172 penetrates through the feeding frame 413 and is fixed to the counterweight 415. When the driving rod 4141 of the second driving member 414 extends or retracts along the Z-axis direction, the counterweight 415 and the linear guide shaft 4172 move synchronously. The linear guide shaft 4172 and the linear bearing 4171 cooperate with each other to keep linear movement, which can increase the driving stability of the second driving member 414.

[0039] The first driving member 412 can be a servo motor, and the second driving member 414 can be a pneumatic cylinder.

[0040] The feeding frame 413 is provided with a strip-shaped hole corresponding to the linear guide shaft 4172, which can increase the fault tolerance.

[0041] The suction rod assembly 416 includes a suction rod head 4161, a vacuum suction head 4162, and a gas pipe joint 4163. The suction rod head 4161 is fixed to the end of the driving rod 4141. The vacuum suction head 4162 is arranged at the end of the suction rod head 4161 and moves reciprocally along the Z-axis under the driving of the driving rod 4141. The gas pipe joint 4163 is arranged in the Y-axis direction of the suction rod head 4161. The vacuum suction head 4162 is used for sucking the workpiece 200 from the workpiece channel 340. The vacuum suction head 4162 can be a rubber vacuum suction head.

[0042] It can be understood that the diameter of the suction nozzle of the vacuum suction head 4162 is smaller than the diameter of the workpiece 200. In addition, a person skilled in the art can replace the vacuum suction head 4162 with a suction nozzle of different diameter to adapt to workpieces 200 of different diameters.

[0043] Please refer to Figure 2 , 8 and 9, Figure 8 for Figure 2 the three-dimensional structure of the clamping mechanism at an angle, Figure 9 for Figure 2Another perspective view of the clamping mechanism is shown. The clamping mechanism 50 includes a mounting plate 51, at least two sets of clamping groups and a centering assembly 54 disposed on opposite sides of the mounting plate 51, one set of clamping groups corresponding to one centering assembly 54, and each clamping group including at least two clamping units 520. In this embodiment, the at least two sets of clamping groups include a first clamping group 52 and a second clamping group 53, the first clamping group 52 including two clamping units 520 disposed opposite to each other along the X-axis direction, and the second clamping group 53 including two clamping units 520 disposed opposite to each other along the Y-axis direction. The number of the centering assemblies 54 is two, a first centering assembly 541 corresponding to the first clamping group 52 and configured to drive the two clamping units 520 of the first clamping group 52 to move opposite to or away from each other along the X-axis direction, and a second centering assembly 542 corresponding to the second clamping group 53 and configured to drive the two clamping units 520 of the second clamping group 53 to move opposite to or away from each other along the Y-axis direction, so that the four clamping units 520 clamp the workpiece 200 to be processed from four different directions in the processing space 500.

[0044] It can be understood that in other embodiments, the number of clamping groups can be three, four, five, etc., as long as the clamping groups can clamp the workpiece 200 to be processed in the processing space 500.

[0045] Please refer to Figure 10 and 11 , Figure 10 is Figure 2 a perspective view of the clamping unit, Figure 11 is Figure 10 a sectional view of the clamping unit. The clamping unit 520 includes a second rotary drive 521, a needle shaft 523 having a groove 5231, a needle 524, and a locking cap 525, the needle shaft 523 being fixed to the second rotary drive 521, the needle 524 being installed in the groove 5231 and configured to clamp the workpiece 200 to be processed, the space surrounded by the four clamping units 520 being the processing space 500, and the locking cap 525 being loosely installed at the opening end of the groove 5231 to replace the needle 524. The locking cap 525 includes a hollow cap body 5251 and a hollow spring chuck 5253 disposed in the cap body 5251, the spring chuck 5253 being sleeved on the needle 524 and clamped between the needle shaft 523 and the needle 524. The second rotary drive 521 drives the needle shaft 523 to rotate, thereby driving the needle 524 to rotate and further driving the workpiece 200 to be processed to rotate, so as to facilitate the machining mechanism 60 to process the workpiece 200 to be processed in all directions. In this embodiment, the second rotary drive 521 can drive the needle 524 to rotate by 360 degrees.

[0046] It is understood that the user can replace different types of ejector pins 524 as needed by loosening and tightening the locking cap 525 to process different workpieces 200. When the workpiece 200 to be processed is a bead with an inner hole, the four ejector pins 524 can be configured with two opposing ejector pins 524 in a group with pointed tips to fit the inner hole of the bead, and the other group of two opposing ejector pins 524 can be configured with rounded tips to fit the rounded surface of the bead.

[0047] Among them, the second rotary driving member 521 can be a rotary motor, and the ejector shaft 523 is connected to the second rotary driving member 521 through a coupling 591 to achieve synchronous rotation. The ejector shaft 523 is accommodated in the second mounting seat 592, and the second rotary driving member 521 is fixed to the second mounting seat 592 through a pad 593, and the second mounting seat 592 is connected to the mounting plate 51 through a slide rail slider structure. The ejector shaft 523 is outer-circuited with a plurality of centripetal thrust ball bearings 595, washers 596 and sealing ring deep groove ball bearings 597, washers 596 are arranged between the centripetal thrust ball bearings 595, and a bearing cover 598 is arranged between the centripetal thrust ball bearings 595 and the second mounting seat 592.

[0048] Please refer to Figure 8 、 9 and 12, Figure 12 for Figure 9 The diagram shows a schematic diagram of the three-dimensional structure of the top-to-bottom assembly. The two clamping units 520, which are positioned opposite each other along the X-axis, are a first clamping unit 520a and a second clamping unit 520b. The first top-to-bottom assembly 541 is fixed to a surface of the mounting plate 51 away from the clamping group and includes a third driving member 5411, a screw rod 5412, a first transmission member 5413, and a second transmission member 5414. The third driving member 5411 drives the screw rod 5412 in forward and reverse rotation. The first transmission member 5413 is fixed to the screw rod 5412 and the second mounting base 592 of the first clamping unit 520a. The second transmission member 5414 is fixed to the screw rod 5412 and the second mounting base 592 of the second clamping unit 520b. When the third driving member 5411 drives the screw rod 5412 to rotate forward and reverse, the first clamping unit 520a and the second clamping unit 520b can be driven to move toward or away from each other through the slide rail structure through the first transmission member 5413 and the second transmission member 5414, so that the ejector pin 524 clamps and releases the workpiece 200 to be processed.

[0049] Among them, the third driving member 5411 can be a servo motor, the first transmission member 5413 and the second transmission member 5414 can be fixedly connected to the screw 5412 through a screw nut, the first transmission member 5413 passes through the mounting plate 51 and is fixedly connected to the first clamping unit 520a, and the second transmission member 5414 passes through the mounting plate 51 and is fixedly connected to the second clamping unit 520b.

[0050] It can be understood that the structure of the two clamping units 520 and the second pair of top assembly 542 arranged oppositely along the Y-axis direction is the same as that of the two clamping units 520 and the first pair of top assembly 541 arranged oppositely along the X-axis direction, which will not be described here.

[0051] When the clamping units 520 and the top assembly 54 work, the four clamping units 520 can clamp and fix the workpiece 200 from four different directions during the machining process of the workpiece 200, so as to maintain the workpiece 200 fixed. When the workpiece 200 needs to be rotated, according to the need of the rotation direction, the opposite two clamping units 520 clamp the workpiece 200 and rotate synchronously, so as to complete the rotation of the workpiece 200. At this time, the top assembly 54 drives the other two clamping units 520 to move backward, so as to avoid damaging the workpiece 200 by the ejector pin 524.

[0052] Further, referring to Figure 8 , the clamping mechanism 50 further comprises a material guide groove 55, a bead removing piece 56 and a tool setting gauge 57. The material guide groove 55 is arranged below the machining space 500. The debris generated when the workpiece 200 is machined falls into the material guide groove 55 and slides along the material guide groove 55 to the bottom of the material guide groove 55, thereby improving the recovery rate of the debris. The bead removing piece 56 is fixed to the mounting plate 51 and corresponds to the machining space 500. The bead removing piece 56 is in the shape of "7" and has a sharp end facing the machining space 500. The tool setting gauge 57 is fixed to the clamping unit 520.

[0053] Further, referring to Figure 2 , the clamping mechanism 50 further comprises a swing assembly 58. The swing assembly 58 comprises a left support plate 581, a right support plate 582, a speed reducer 583, a third mounting seat 584 and a third rotary driving member 585. The mounting plate 51 is in the shape of inverted U and comprises a horizontal plate 511 and two vertical plates 512. The horizontal plate 511 is in the shape of cross and is used for mounting the four clamping units 520. The four clamping units 520 are respectively mounted at the four ends of the horizontal plate 511. The two vertical plates 512 are arranged along the X-axis direction. The left support plate 581 and the right support plate 582 are arranged oppositely along the X-axis direction and are respectively fixed to the two vertical plates 512 away from the horizontal plate 511. The speed reducer 583 is fixed to the left support plate 581 and is drivingly connected with the vertical plate 512. The third rotary driving member 585 is fixed to the speed reducer 583 through the third mounting seat 584. The third rotary driving member 585 drives the mounting plate 51 to swing in the rocking mode at a predetermined angle. In this embodiment, the third rotary driving member 585 can be a rotary motor. The swing angle of the mounting plate 51 is plus or minus 110 degrees.

[0054] Please refer to Figure 13 , in order to Figure 1The three-dimensional structure assembly diagram of the processing mechanism is shown. The processing mechanism 60 is arranged in the positive half-axis direction of the Z-axis of the clamping mechanism 50, and includes a processing support 61, an X-axis module 62, a Y-axis module 63, a Z-axis module 64, and a processing assembly 65. The processing support 61 includes a crossbeam 611 and a stand 612 at both ends of the crossbeam 611. The X-axis module 62 is arranged on the crossbeam 611 of the processing support 61 in the X-axis direction. The Y-axis module 63 is arranged on the X-axis module 62 in the Y-axis direction. The Z-axis module 64 is arranged on the Y-axis module 63 in the Z-axis direction. The feeding slide rail 411 of the feeding mechanism 40 is fixed to the side of the stand 612 facing the clamping mechanism 50.

[0055] Preferably, the processing support 61 is a gantry.

[0056] The X-axis module 62 includes an X-axis servo motor 621, an X-axis ball screw 622, an X-axis movable part 623, and an X-axis linear guide rail set 624 arranged on both sides of the X-axis ball screw 622. The X-axis ball screw 622 is mounted on the crossbeam 611 in the X-axis direction. The X-axis movable part 623 is arranged on the X-axis linear guide rail set 624. The Y-axis module 63 is arranged on the X-axis movable part 623. The X-axis servo motor 621 drives the X-axis movable part 623 and the Y-axis module 63 to move reciprocally on the X-axis linear guide rail set 624 in the X-axis direction.

[0057] The Y-axis module 63 includes a Y-axis servo motor 631, a Y-axis ball screw, a Y-axis movable part 633, and a Y-axis linear guide rail set 634 arranged on both sides of the Y-axis ball screw. The Y-axis ball screw is mounted on the X-axis movable part 623 in the Y-axis direction. The Y-axis movable part 633 is arranged on the Y-axis linear guide rail set 634. The Z-axis module 64 is arranged on the Y-axis movable part 633. The Y-axis servo motor 631 drives the Y-axis movable part 633 and the Z-axis module 64 to move reciprocally on the Y-axis linear guide rail set 634 in the Y-axis direction.

[0058] The Z-axis module 64 includes a Z-axis servo motor 641, a Z-axis ball screw, a spindle connecting plate 643, a Z-axis movable part 645, and a Z-axis linear guide rail set 646 arranged on both sides of the Z-axis ball screw. The Z-axis ball screw is mounted on the Y-axis movable part 633 in the Z-axis direction. The spindle connecting plate 643 is arranged on the Z-axis movable part 645. The Z-axis servo motor 641 drives the spindle connecting plate 643 to move reciprocally on the Z-axis linear guide rail set 646 in the Z-axis direction. The processing assembly 65 is fixedly mounted on the spindle connecting plate 643.

[0059] The processing assembly 65 includes a spindle rotating motor 651 and a tool mounting seat 652. The tool mounting seat 652 is arranged at the end of the spindle rotating motor 651. A tool is mounted on the tool mounting seat 652. The tool rotates under the control of the spindle rotating motor 651.

[0060] When the processing mechanism 60 is working, driven by the X-axis module 62, the Y-axis module 63 and the Z-axis module 64, the tool reaches the processing space 500, and the spindle rotation motor 651 drives the tool on the tool mounting seat 652 to rotate to perform processing operations on the workpiece 200 to be processed.

[0061] Further, see Figure 14 ,for Figure 13 The schematic diagram of the three-dimensional structure assembly of the tool magazine is shown. The processing mechanism 60 also includes a tool magazine assembly 66, which is fixedly mounted on the column 612 via a tool magazine fixing plate 68. The tool magazine assembly 66 includes a tool magazine servo motor 661, a tool magazine reducer 662, a tool magazine base plate 663, and a rotating cutter disc 664. The rotating cutter disc 664, the tool magazine servo motor 661, and the tool magazine reducer 662 are respectively mounted on either side of the tool magazine base plate 663. The rotating cutter disc 664 rotates under the drive of the tool magazine servo motor 661 and the tool magazine reducer 662. The rotating cutter disc 664 is equipped with a plurality of claws 665. The plurality of claws 665 are arranged on the same circumference with the center of the rotating cutter disc 664 as the center. The claws 665 are equipped with cutting tools.

[0062] In this embodiment, the tool magazine base plate 663 and rotating cutterhead 664 are mounted horizontally, and the mounting orientation of the jaws 665 and the tool is aligned with the orientation of the tool on the machining assembly 65, facilitating tool replacement. When a tool change is required, the tool magazine servo motor 661 and tool magazine reducer 662 rotate the rotating cutterhead 664, moving the desired tool to a predetermined position. The X-axis module 62, Y-axis module 63, and Z-axis module 64 then drive the machining assembly 65 to the tool magazine assembly 66 for tool replacement.

[0063] Further, please refer to Figure 13 and Figure 15 ,for Figure 1 The three-dimensional structural assembly diagram of the cutting assembly is shown. The processing mechanism 60 also includes a cutting assembly 67, which is mounted on the spindle connecting plate 643 and includes a fourth mounting seat 670, a Z-axis lifting module 671, a fourth rotary drive member 672, and a cutting knife 673. The Z-axis lifting module 671 is fixed to the spindle connecting plate 643, the fourth rotary drive member 672 is fixed to the Z-axis lifting module 671 via the fourth mounting seat 670, and the cutting knife 673 is fixed to the fourth rotary drive member 672. The Z-axis lifting module 671 adjusts the position of the fourth rotary drive member 672 and the cutting knife 673 on the Z axis, allowing them to move toward or away from the processing space 500. The fourth rotary drive member 672 drives the cutting knife 673 to rotate, processing the workpiece 200.

[0064] The fourth rotary driving member 672 comprises a first rotary motor 6721 and a second rotary motor 6722. The first rotary motor 6721 and the second rotary motor 6722 are fixed to the fourth mounting base 670. The batch assembly 67 further comprises a first synchronous wheel 674, a bearing transmission base 675, a second synchronous wheel 676, a third synchronous wheel 677 and a fourth synchronous wheel 678.

[0065] The motor shaft of the first rotary motor 6721 is connected with the first synchronous wheel 674, and the bearing transmission base 675 is sleeved on the motor shaft. The batch tool 673 and the second synchronous wheel 676 are installed on the bearing transmission base 675, and the center of the batch tool 673 is synchronously rotatably connected with the second synchronous wheel 676. The bearing transmission base 675 is provided with a support block 6751 and a transition wheel 6753, the transition wheel 6753 is installed on the support block 6751, the first synchronous wheel 674, the transition wheel 6753 and the second synchronous wheel 676 are connected through a belt transmission, the first rotary motor 6721 drives the first synchronous wheel 674 to rotate, and the transition wheel 6753, the second synchronous wheel 676 and the batch tool 673 are synchronously rotated through the belt transmission, so that the batch tool 673 rotates around its center to process the surface of the to-be-processed bead.

[0066] The motor shaft of the second rotary motor 6722 is connected with the third synchronous wheel 677, and the bearing transmission base 675 is sleeved with the synchronously rotating fourth synchronous wheel 678. The third synchronous wheel 677 and the fourth synchronous wheel 678 are connected through a belt transmission. The second rotary motor 6722 drives the third synchronous wheel 677 to rotate, and the fourth synchronous wheel 678, the bearing transmission base 675 and the batch tool 673 are synchronously rotated through the belt transmission. The batch tool 673 rotates around the center of the shaft of the fourth synchronous wheel 678, that is, rotates around the Z-axis, so as to adjust the angle of the batch tool 673 and realize 360-degree angle adjustment.

[0067] The Z-axis lifting module 671 can be a cylinder driving device, a lead screw lifting device or the like.

[0068] Please refer to Figure 16-17 , Figure 16 for Figure 1 the assembly diagram of the three-dimensional structure of the detection mechanism, Figure 17 for Figure 16 the exploded view of the three-dimensional structure of the detection mechanism. The detection mechanism 70 is fixed to the tool magazine fixing plate 68 and comprises a mounting bracket 71, a lens mounting base 72, a camera 73 and a protective lens 75. The lens mounting base 72 is rotatably installed on the mounting bracket 71, the camera 73 is installed on the lens mounting base 72, the lens 731 of the camera 73 is accommodated in the lens mounting base 72, the lens 731 is a wide-angle telephoto lens, and the protective lens 75 is provided on the lens 731 to prevent dust and filter light UV.

[0069] By adjusting the angle of the lens mount 72 relative to the mounting bracket 71, the lens 731 can be aligned with the machining space 500, so that the machining process and machining effect of the workpiece 200 to be machined can be more intuitively detected.

[0070] The mounting bracket 71 is provided with a first through hole 711 and an arc-shaped hole 712, the lens mount 72 is provided with a second through hole 721 corresponding to the first through hole 711 and a third through hole 722 corresponding to the arc-shaped hole 712, the first bolt passes through the first through hole 711 and the second through hole 721, and the second bolt passes through the arc-shaped hole 712 and the third through hole 722. When the mounting bracket 71 and the lens mount 72 can rotate relative to the first bolt as a fulcrum, at this time, the third through hole 722 slides along the extension direction of the arc-shaped hole 712, and when the lens 731 is aligned with the machining space 500, the second bolt is locked, the relative position of the mounting bracket 71 and the lens mount 72 can be maintained, and stable image acquisition can be realized.

[0071] When the ball turning machine 100 works, the workpiece 200 to be machined is added to the vibration disc 23 of the feeding mechanism 20, the vibration disc 23 vibrates to make the workpiece 200 to be machined enter the feeding channel 25 in order, and then enter the workpiece channel 340 of the workpiece feeding mechanism 30 from the feeding channel 25; the first rotary driving member 322 drives the first transmission shaft 34 and the second transmission shaft 35 to rotate, so that the inner holes of the workpiece 200 to be machined are arranged in order in the workpiece channel 340; the first driving member 412 drives the feeding frame 413 to move along the feeding slide rail 411 to above the workpiece channel 340; when the driving rod 4141 of the second driving member 414 extends along the Z-axis direction, the balance block 415 and the linear guide shaft 4172 move synchronously, the driving rod 4141 keeps linearly extending, and at the same time, the vacuum suction head 4162 moves along the negative half-axis of the Z-axis to the workpiece channel 340 to suck the workpiece 200 to be machined; after the workpiece 200 to be machined is sucked, when the driving rod 4141 of the second driving member 414 retracts along the Z-axis direction, the balance block 415 and the linear guide shaft 4172 move synchronously, the driving rod 4141 keeps linearly retracting, and at the same time, the vacuum suction head 4162 moves along the positive half-axis of the Z-axis with the workpiece 200 to be machined; the first driving member 412 drives the feeding frame 413 to move along the feeding slide rail 411 to above the clamping mechanism 50, releases the workpiece 200 to be machined to the machining space 500 of the clamping mechanism 50, and adjusts the machining surface of the workpiece 200 to be machined to the machining direction of the machining mechanism 60 in cooperation with the clamping mechanism 50; the machining mechanism 60 selects the preset tool or the batch flower tool 673 according to needs, moves it to the machining space 500, and processes the workpiece 200 to be machined, and at the same time, the detection mechanism 70 obtains the image information of the machining space 500.

[0072] Compared with the prior art, the ball turning machine 100 provided by the embodiment of the utility model sets a detection mechanism 70, obtains image information of the machining space 500, and can more intuitively detect the machining process and machining effect.

[0073] The standby mechanism 30 is provided with a first rotary power assembly 32 to drive the first transmission shaft 34 and the second transmission shaft 35 to rotate, so that the inner holes of the workpieces 200 to be machined are orderly arranged in the workpiece channel 340, and the suction rod assembly 416 of the feeding mechanism 40 cannot suck the workpieces 200 to be machined.

[0074] When the driving rod of the second driving part 414 is extended or retracted, the balance block 415 and the linear guide shaft 4172 are synchronously moved, the extension and retraction stability of the second driving part 414 is improved, and the reliability of the feeding mechanism 40 in sucking the workpieces 200 to be machined is improved.

[0075] The clamping mechanism 50 is provided with a locking cap 525 which can be tightly or loosely installed at the opening end of the groove 5231, and the locking cap 525 can be loosened or tightened to replace various styles of the ejector pin 524.

[0076] The clamping mechanism 50 drives the first clamping unit 520a and the second clamping unit 520b to move towards or away from each other through the forward and reverse rotation of the lead screw 5412 of the pair of ejector assemblies 54, so that the ejector pin 524 clamps or loosens the workpiece 200 to be machined.

[0077] The batch processing assembly 67 is provided with a Z-axis lifting module 671 to adjust the position of the fourth rotary driving part 672 and the batch processing cutter 673 on the Z-axis, the fourth rotary driving part 672 is fixed to the Z-axis lifting module 671, and the Z-axis position of the batch processing cutter 673 is independently adjusted, so that the machining is convenient. The second rotary motor 6722 drives the third synchronous wheel 677 to rotate, the fourth synchronous wheel 678, the bearing transmission seat 675 and the batch processing cutter 673 are synchronously rotated through belt transmission, the batch processing cutter 673 rotates around the Z-axis, the angle of the batch processing cutter 673 is adjusted, and 360-degree angle adjustment is realized. The first rotary motor 6721 drives the first synchronous wheel 674 to rotate, the batch processing cutter 673 is synchronously rotated through belt transmission of the transition wheel 6753, the second synchronous wheel 676 and the batch processing cutter 673, and the batch processing cutter 673 rotates around its center, so that self-rotation batch processing machining is realized.

[0078] The above only describes some embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A clamping mechanism comprising: at least two clamping groups, each of the clamping groups comprising at least two clamping units, wherein the clamping units comprise: a second rotary drive; a needle shaft with a groove fixed to the second rotary drive; a needle installed in the groove; a locking cap loosely installed at an opening end of the groove to replace the needle.

2. The clamping mechanism of claim 1, wherein, The locking cap comprises a hollow cap body and a hollow spring collet arranged in the cap body, the spring collet is sleeved on the needle and clamped between the needle shaft and the needle.

3. The clamping mechanism of claim 1, wherein, Further comprising a mounting plate, a mounting seat and a backing plate, the needle shaft is accommodated in the mounting seat, the second rotary drive is fixed to the mounting seat through the backing plate, and the mounting seat is connected to the mounting plate through a sliding rail and sliding block structure.

4. The clamping mechanism of claim 3, wherein The needle shaft is sleeved with a plurality of radial thrust ball bearings and a gasket, the gasket is arranged between the radial thrust ball bearings, and the radial thrust ball bearings are arranged between the mounting seat and the bearing gland.

5. The clamping mechanism of claim 1, wherein, The clamping mechanism further comprises a mounting plate and a counter-pressing assembly, the counter-pressing assembly is arranged on opposite sides of the mounting plate relative to the clamping groups, each of the clamping groups comprises a first clamping unit and a second clamping unit arranged opposite to each other on the mounting plate, and comprises a lead screw, a first transmission member and a second transmission member, the first transmission member is fixed to the lead screw and the first clamping unit, the second transmission member is fixed to the lead screw and the second clamping unit, and the lead screw drives the first clamping unit and the second clamping unit to move towards or away from each other by forward and reverse rotation.

6. The clamping mechanism of claim 5, wherein, The first transmission member and the second transmission member are fixedly connected to the lead screw through a lead screw nut, the first transmission member is fixedly connected to the first clamping unit through the mounting plate, and the second transmission member is fixedly connected to the second clamping unit through the mounting plate.

7. The clamping mechanism of claim 5, wherein The at least two clamping groups comprise a first clamping group and a second clamping group, the first clamping group comprises the first clamping unit and the second clamping unit arranged opposite to each other along an X-axis direction, the second clamping group comprises the first clamping unit and the second clamping unit arranged opposite to each other along a Y-axis direction, and the counter-pressing assembly comprises a first counter-pressing assembly corresponding to the first clamping group and a second counter-pressing assembly corresponding to the second clamping group.

8. The clamping mechanism of claim 5, wherein, Further comprising a material guide groove and a bead removing piece arranged on the mounting plate, the material guide groove is arranged corresponding to a machining space surrounded by the clamping units, and the bead removing piece is arranged corresponding to the machining space and in a "7" shape with a pointed end facing the machining space.

9. The clamping mechanism of claim 5, wherein, Further comprising a swing assembly, the swing assembly comprises a left support plate, a right support plate and a third rotary drive, the mounting plate is in an inverted U shape and is fixed to the left support plate and the right support plate, and the third rotary drive drives the mounting plate to swing in a cradle manner at a predetermined angle.

10. A ball making machine, comprising a frame, a feeding mechanism, a waiting mechanism, a loading mechanism, a clamping mechanism and a processing mechanism arranged on the frame, characterized in that, The clamping mechanism is as claimed in any one of claims 1-9.

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