A sanding machine for processing heating plate

Abstract

The utility model relates to a sanding machine for processing a heating plate, comprising a machine base, an automatic feeding mechanism for step-by-step transferring the heating plate is arranged on the machine base, and a loading and unloading mechanism for placing the heating plate on the automatic feeding mechanism, a welding slag scraping mechanism for scraping welding slag on the edge of a heating tube in the heating plate, a turning mechanism for turning the heating plate upside down, a polishing mechanism for polishing the inner groove surface of the heating plate, and a plurality of sanding mechanisms arranged in sequence and used for grinding and drawing various surfaces of the heating plate are arranged in sequence along the transferring direction of the automatic feeding mechanism; this sanding machine can realize automatic loading and unloading, welding slag scraping, turning, polishing, grinding and drawing and other processing procedures for the heating plate, so that the processing of the heating plate can be fully automated, the production efficiency of the heating plate is improved, and the sanding machine is suitable for the automated production line of the heating plate.

Description

Technical Field

[0001] The utility model relates to the field of sanding machines, in particular to a sanding machine used for processing heating discs. Background Art

[0002] The heating plate is an important component of many heating appliances. During the production process of the existing heating plate, it is necessary to draw the inner wall of the heating plate to make the surface drawing uniform. The current conventional practice is that workers manually draw the heating plate, which causes uneven drawing, low work efficiency, high labor costs, and a low degree of automation. The quality control of the heating plate is poor, the drawing effect is not ideal, and other problems. Therefore, the applicant provides a new sanding mechanism solution that can be suitable for use on a fully automated production line of the heating plate to improve production efficiency. Summary of the invention

[0003] The utility model aims to provide a sanding machine for processing a heating plate which has a simple and reasonable structure, is easy to install and has a stable structure.

[0004] A sanding machine for processing a heating plate comprises a machine base, on which an automatic feeding mechanism for steppingly transferring the heating plate is arranged, and along the transfer direction of the automatic feeding mechanism, a loading and unloading mechanism for placing the heating plate on the automatic feeding mechanism, a welding slag scraping mechanism for scraping welding slag on the edge of a heating tube in the heating plate, a turning mechanism for turning the heating plate upside down, a polishing mechanism for polishing the inner groove surface of the heating plate, and a plurality of sanding mechanisms arranged in sequence and used for grinding and drawing each surface of the heating plate are arranged in sequence.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the several sanding mechanisms include a first sanding mechanism for grinding the inner groove surface of the heating plate, a second sanding mechanism for grinding the top surface and the inner side surface of the convex edge of the heating plate, a third sanding mechanism for grinding the central part of the heating plate surface, and a fourth sanding mechanism for grinding the outer ring part of the heating plate surface.

[0007] As a further solution, the automatic feeding mechanism includes a divider turntable and a turntable driver for controlling the stepping rotation of the divider turntable, and the divider turntable is evenly distributed around its rotation center with a plurality of feeding clamps for clamping the heating plate and a rotating drive device for controlling the axial rotation of the feeding clamp on the divider turntable.

[0008] As a further solution, the loading and unloading mechanism includes a rotating disk and a rotating driver that controls the rotating disk to rotate back and forth at 180°, and the rotating disk is evenly distributed around its rotation center with two groups of front and rear arranged picking heads and a picking and placing driving device that controls the translational movement of the picking heads; the picking head includes a suction pipe, the upper end of the suction pipe is connected to the control air circuit, and the lower end of the suction pipe is connected to a vacuum suction cup.

[0009] As a further solution, the welding slag scraping mechanism includes a slag scraping motion component and a welding slag scraping component fixedly connected to the slag scraping motion component; the welding slag scraping component includes a slag scraping locking plate connected to the slag scraping motion component, and the slag scraping locking plate is connected to a welding slag knife and an angle adjustment device for adjusting the falling angle of the welding slag knife.

[0010] As a further solution, the flipping mechanism includes a flipping motion component and a flipping component fixedly connected to the flipping motion component, the flipping component includes a lifting support frame and two flipping claws arranged oppositely, the flipping claws are connected oppositely to the left and right sides of the lifting support frame through a flipping drive device, and the flipping drive device drives the flipping claws to rotate along their own axes and move forward and backward oppositely, so that a clamping flipping space with adjustable width is formed between the two flipping claws.

[0011] As a further solution, the polishing mechanism includes a polishing motion component and a polishing component fixedly connected to the polishing motion component; the polishing component includes a polishing locking plate connected to the scraping motion component, the polishing locking plate is connected to a swingably adjustable motor bracket, the motor bracket is fixed with a polishing motor and a drawing wheel fixed to the output shaft of the polishing motor.

[0012] As a further solution, the sanding mechanism includes a sanding motion component and a sanding component connected to the sanding motion component, the sanding component includes a movable locking plate, and the movable locking plate is connected to a sanding belt support device for holding the sanding belt against the surfaces of the heating disk, a sanding belt retracting device for retracting and unwinding the rolled sanding belt, a sanding belt guide device for guiding the sanding belt in and out of the sanding belt support device, and a sanding belt tensioning device for tensioning the sanding belt.

[0013] As a further solution, the flipping drive device includes a flipping bracket, which is rotatably connected to the flipping main shaft, the inner end of the flipping main shaft is axially connected to a clamping cylinder, and the piston shaft of the clamping cylinder is connected to a flipping claw; the flipping bracket is fixedly connected to a flipping motor, the output shaft of the flipping motor is connected to a driving pulley, the flip main shaft is fixedly connected to a driven pulley, and the driving pulley is connected to the driven pulley through a transmission belt.

[0014] As a further solution, the feeding clamp includes a clamp seat assembly with a clamping station on the top surface, and a plurality of bearing clamp assemblies that slide radially back and forth are provided along the outer circumference of the clamping station on the top surface of the clamp seat assembly. The clamp seat assembly is also connected to a clamp screw plate and a lifting drive device for controlling the clamp screw plate to rise and fall along the axial direction. A clamp clamp rod is provided between the clamp screw plate and the bearing clamp assembly. The lower part of the clamp clamp rod is rotatably hinged to the clamp screw plate, and the upper part of the clamp clamp rod is rotatably hinged to the bearing clamp assembly. The clamp screw plate that rises and falls drives the bearing clamp assembly to slide back and forth through the clamp clamp rod to achieve loosening or clamping of the workpiece.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a sanding machine for processing heating plates. The sanding machine can automatically load and unload materials, scrape welding slag, turn over, polish, grind and draw wires on the heating plates, so that the processing of the heating plates can be fully automated. The various mechanisms cooperate closely and can continuously and continuously supplement the processing. The processing steps are rigorous and the processing effect is high in precision. The production efficiency of the heating plates is improved, which helps to reduce labor costs. The sanding machine is suitable for the automated production line of the heating plates. The divider turntable is used for feeding, which can reduce the size of the sanding machine and reduce the area occupied by the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the sanding machine in the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the loading and unloading mechanism in the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the pick-up head and the material picking and placing drive device in the utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the welding slag scraping mechanism in the utility model.

[0021] Figure 5 It is a schematic diagram of the exploded structure of the angle adjustment device and the welding slag inserter in the utility model.

[0022] Figure 6 It is a schematic diagram of scraping welding slag from the heating plate by inserting welding slag in the utility model.

[0023] Figure 7 It is a schematic diagram of the structure of the turning mechanism in the utility model.

[0024] Figure 8 It is a schematic diagram of the structure of the flip driving device in the utility model.

[0025] Fig. 9It is a schematic structural diagram of the first lifting device in the utility model.

[0026] Fig.10 It is a schematic diagram of the polishing mechanism structure in the utility model.

[0027] Fig.11 It is a schematic diagram of the structure of the sanding mechanism in the utility model.

[0028] Fig.12 It is a schematic diagram of the structure of the sanding component in the utility model.

[0029] Fig.13 This is a schematic diagram of the exploded structure of the sand belt support device in the utility model.

[0030] Fig.14 It is a schematic diagram of the structure of the lifting and lateral movement device in the utility model.

[0031] Fig.15 It is a schematic diagram of the positions of the various processed surfaces of the heating plate in the utility model.

[0032] Fig.16 This is a schematic diagram of the structure of the feeding clamp in the utility model.

[0033] Fig.17 It is a schematic diagram of the cross-sectional structure of the feeding fixture of the utility model when the heating plate is released.

[0034] Fig.18 It is a schematic diagram of the cross-sectional structure of the feeding clamp in the utility model when clamping the heating plate.

[0035] Fig.19 It is a schematic diagram of the partial exploded structure of the feeding clamp in the utility model.

[0036] Fig. 20 It is a schematic diagram of the cross-sectional structure of the rotary drive device in the utility model. DETAILED DESCRIPTION

[0037] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0038] like Figure 1 and Fig.15 As shown, a sanding machine for processing a heating plate comprises a machine base 1, on which an automatic feeding mechanism 2 for steppingly transferring a heating plate A is arranged, and along the transferring direction of the automatic feeding mechanism 2, a loading and unloading mechanism 4 for taking and placing the heating plate A on the automatic feeding mechanism 2, a welding slag scraping mechanism 5 for scraping welding slag on the edge of a heating tube A1 in the heating plate A, a turning mechanism 6 for turning the heating plate A upside down, a polishing mechanism 7 for polishing an inner groove surface A3 of the heating plate A, and a plurality of sanding mechanisms arranged in sequence and used for grinding and drawing each surface of the heating plate A are arranged in sequence.

[0039] This sanding machine can automatically load and unload, scrape welding slag, turn over, polish, grind and draw wires on the heating plate, making the processing of the heating plate fully automated. The various mechanisms cooperate closely and can continuously and uninterruptedly supplement the processing. The processing steps are rigorous and the processing effect is high-precision, which improves the production efficiency of the heating plate and helps to reduce labor costs. The sanding machine is suitable for the automated production line of the heating plate. The divider turntable is used for feeding, which can reduce the size of the sanding machine and reduce the area occupied by the factory.

[0040] The plurality of sanding mechanisms include a first sanding mechanism 8 for grinding the inner groove surface A3 of the heating plate, a second sanding mechanism 9 for grinding the convex edge top surface A4 and the inner side surface A5 of the convex edge of the heating plate A, a third sanding mechanism 10 for grinding the central portion A6 of the heating plate A, and a fourth sanding mechanism 11 for grinding the outer ring portion A7 of the heating plate A. The structures of the first sanding mechanism 8 to the fourth sanding mechanism 11 are basically the same, and the difference is that the angle is adjusted according to the different grinding surface positions;

[0041] In this embodiment, the diameter of the heating plate A is relatively large, and the grinding and drawing process of the plate surface alone takes a long time (about twice or more than the time of other mechanisms to process the heating plate A). Therefore, in order not to delay the production process of the sanding machine, the third sanding mechanism 10 and the fourth sanding mechanism 11 are used to grind the inside and outside of the heating plate surface in two steps to improve the production efficiency of the heating plate A.

[0042] In addition, in the present embodiment, the sanding machine can also utilize the loading and unloading mechanism 4, the welding slag scraping mechanism 5, and the flipping mechanism 6 to process other workpieces (such as a metal water cup). Processing the metal water cup requires an additional sanding mechanism, so the several sanding mechanisms also include a fifth sanding mechanism 12 and a sixth sanding mechanism 13. When processing the metal water cup, the polishing mechanism 7 and the first sanding mechanism 8 to the fourth sanding mechanism 11 will be skipped.

[0043] The automatic feeding mechanism 2 includes a divider turntable 21 and a turntable driver for controlling the stepping rotation of the divider turntable 21. The divider turntable 21 is evenly distributed around its rotation center with multiple feeding fixtures 3 for transplanting the heating disk A and a rotating drive device 22 for controlling the axial rotation of the feeding fixture 3 on the divider turntable 21; the processing production line uses the divider turntable for feeding, which can reduce the volume of the processing production line and reduce the area occupied by the factory. During the sanding process, the sanding mechanism is relatively stationary, and the surfaces of the heating disk are circumferentially ground and drawn through the rotation of the feeding fixture 3 itself.

[0044] like Figure 2 and Figure 3As shown, the loading and unloading mechanism 4 includes a rotating disk 41 and a rotating driver 42 for controlling the rotating disk 41 to reciprocate at 180°. Two groups of pick-up heads 43 and a material taking and unloading driving device 44 for controlling the translational movement of the pick-up heads 43 are evenly distributed on the rotating disk 41 around its rotation center; through the reciprocating rotation of the two groups of pick-up heads 43, the loading speed and unloading speed of the processing production line can be maintained, thereby improving production efficiency;

[0045] The picking head 43 includes a suction cup locking block 431, and the suction cup locking block 431 is connected to a suction pipe 432. The upper end of the suction pipe 432 is connected to the control air circuit, and the lower end of the suction pipe 432 is connected to a vacuum suction cup 433; the heating plate A is sucked from the center by the vacuum suction cup 433, and the heating plate A is placed on the feeding fixture 3, which can prevent other robots from scratching the heating plate A.

[0046] The material picking and placing drive device 44 includes a third supporting column 441 and a forward sliding rail plate 442, and the third supporting column 441 is fixedly connected with a fixed sliding block 443 and a transverse cylinder 444, and the piston shaft of the transverse cylinder 444 is connected to the forward sliding rail plate 442, and the forward sliding rail plate 442 is fixedly connected with a movable sliding rail 445 that slides with the fixed sliding block 443 and a lifting cylinder 446, and the piston shaft of the lifting cylinder 446 is connected to the picking head 43.

[0047] When one of the pick-up heads 43 is transferred to the top of the automatic feeding mechanism 2, the pick-up head 43 puts the heating plate A onto one of the feeding fixtures 3 on the automatic feeding mechanism 2, and then when the next feeding fixture 3 delivers the processed heating plate A to the bottom of the pick-up head 43, the pick-up head 43 moves downward to suck the heating plate A and waits for it to be transferred after it is rotated;

[0048] When the other picking head 43 is transferred to the outside of the machine base 1, the picking head 43 places the heating disk A just sucked away at the finished product stacking position, and then the transverse cylinder 444 drives the picking head 43 to move, so that the picking head 43 is transferred to the workpiece stacking position, and the heating disk A to be processed is sucked up and transferred to the feeding fixture 3 after rotation.

[0049] The third supporting column 441 is also fixedly provided with a left limit buffer 45 and a right limit buffer 46 which cooperate with the rear end of the forward extending slide rail plate 442 or the movable slide block 638 .

[0050] like Figures 4 to 6 As shown, the welding slag scraping mechanism 5 includes a scraping slag motion component and a welding slag scraping component 52 fixedly connected to the scraping slag motion component; the welding slag scraping component 52 includes a scraping slag locking plate 54 connected to the scraping slag motion component, and the scraping slag locking plate 54 is connected to a welding slag knife 55 and an angle adjustment device 56 for adjusting the falling angle of the welding slag knife 55.

[0051] The slag scraping motion assembly includes a second supporting column 51 and a first lifting and lateral movement device 53 connected to the second supporting column 51, and the welding slag scraping assembly 52 is fixedly connected to the first lifting and lateral movement device 53; the welding slag knife 55 can be translated and slid in the horizontal direction and the vertical direction through the first lifting and lateral movement device 53, and the welding slag knife 55 can be adjusted according to the heating plates A of different specifications by using the angle adjustment device 56, so that the processing production line has a wider range of uses.

[0052] The angle adjustment device 56 includes a rotating lock plate 561 and an adjustment block 562. The rotating lock plate 561 is horizontally connected to the scraper lock plate 54. The transverse portion 562a of the adjustment block 562 is rotatably connected to the bottom surface of the rotating lock plate 561, and a left-right adjustment structure is provided between the adjustment block 562 and the scraper lock plate 54. The handle 551 of the welding slag inserter 55 is rotatably connected to the longitudinal portion 562b of the adjustment block 562, and an up-down adjustment structure is provided between the adjustment block 562 and the longitudinal portion 562b.

[0053] Specifically, the left-right adjustment structure includes a pair of symmetrically arranged left-right arc-shaped sliding holes 563 opened on the rotating lock plate 561 and an upper fastening hole 564 opened on the transverse portion 562a of the adjustment block 562 corresponding to the left-right arc-shaped sliding holes 563. A fastening unit (a combination of a bolt and a nut) is connected between the upper fastening hole 564 and the left-right arc-shaped sliding holes 563. After adjusting the position, the fastening unit is tightened to fix the left-right angle of the adjustment block 562.

[0054] The up and down adjustment structure includes a pair of symmetrically arranged upper and lower arc-shaped sliding holes 565 opened on the longitudinal portion 562b of the adjustment block 562 and a lower fastening hole 566 opened on the handle 551 corresponding to the upper and lower arc-shaped sliding holes 565. A fastening unit is connected between the lower fastening hole 566 and the upper and lower arc-shaped sliding holes 565. After the position is adjusted, the fastening unit is tightened to fix the up and down angles of the welding slag insert 55. The left and right adjustment structure and the up and down adjustment structure are simple in structure and easy to adjust.

[0055] like Figure 7 and Figure 8 As shown, the flipping mechanism 6 includes a flipping motion component and a flipping component fixedly connected to the flipping motion component, the flipping component includes a lifting support frame 62 and two flipping jaws 64 arranged oppositely, the flipping jaws 64 are connected to the left and right sides of the lifting support frame 62 through a flipping drive device 65, and the flipping drive device 65 drives the flipping jaws 64 to rotate along their own axial direction and move forward and backward to form a clamping flipping space with adjustable width between the two flipping jaws 64; the flipping mechanism 6 of this sanding machine can lift the heating plate A on the feeding clamp 3, and flip the heating plate A up and down, completely realizing full-automatic processing and improving the production efficiency of the heating plate A.

[0056] The flipping drive device 65 includes a flipping bracket 651. A flipping main shaft 652 is rotatably connected to the flipping bracket 651. A clamping cylinder 653 is axially connected to the inner end of the flipping main shaft 652. A flipping gripper 64 is connected to the piston shaft of the clamping cylinder 653. A flipping motor 654 is fixedly connected to the flipping bracket 651. An active pulley 656 is connected to the output shaft of the flipping motor 654. A driven pulley 657 is fixed to the flipping main shaft 652. The active pulley 656 is in transmission connection with the driven pulley 657 through a transmission belt 655.

[0057] When the clamping cylinder 653 works, the two flipping grippers 64 move towards each other to clamp the heating plate A on the automatic feeding mechanism 2 and lift it to a sufficient height. Then, the flipping motor 654 works, driving the clamping cylinder 653 to rotate together, so that the heating plate A is turned over up and down.

[0058] The lifting support frame is of a "U" - shaped structure, and the flipping bracket 651 is fixedly connected to the left and right end arms of the lifting support frame.

[0059] A flipping detection piece 659 is coaxially connected to the flipping motor 654. A detection notch 6591 is formed at the edge of the flipping detection piece 659. A position - in - place detection switch 66 is installed on the flipping bracket 651 and is matched with the detection notch 6591. By the cooperation of the position - in - place detection switch 66 and the detection notch 6591, the flipping motor 654 can be controlled to return to the initial position.

[0060] A first V - shaped clamping opening 641 is formed on the clamping surface of the flipping gripper 64. The first V - shaped clamping opening 641 is adapted to the circular - structured heating plate A, making the flipping gripper 64 more firm and stable when clamping the heating plate A.

[0061] In addition, the flipping motion assembly includes a first support column 61 and a first lifting device 63 connected to the first support column 61. The lifting support frame 62 is fixed on the first lifting device 63.

[0062] As Fig. 9 shown, the first lifting device 63 includes a longitudinal bellows module 6A. The longitudinal bellows module 6A includes a module seat 631 fixed to the first support column 61, a drive unit 632, a coupling 633, a lead screw shaft 634, and a lead screw nut 635 connected to the module seat 631. The output end of the drive unit 632 is connected to one end of the coupling 633. The lead screw shaft 634 is connected to the other end of the coupling 633. The lead screw nut 635 is sleeved on the lead screw shaft 634 and is connected to a lifting seat 636. The lifting support frame 62 is fixed on the lifting seat 636. When moving, the lead screw nut 635 drives the lifting support frame 62 to move up and down in the vertical direction under the drive of the lead screw shaft 634.

[0063] The first lifting device 63 also includes a slide rail assembly, which includes a fixed slide rail 637 and a movable slider 638. The fixed slide rail 637 is fixedly connected to the module base 631, and the movable slider 638 is fixedly connected to the lifting base 636. The lifting base 636 slides linearly on the module base 631 through the cooperation of the driving unit 632 and the slide rail assembly.

[0064] like Fig.10 As shown, the polishing mechanism 7 includes a polishing motion component and a polishing component fixedly connected to the polishing motion component; the polishing component includes a polishing lock plate 71 connected to the scraping motion component, the polishing lock plate 71 is connected to a swingable motor bracket 72, the motor bracket 72 is fixed with a polishing motor 73 and a drawing wheel 74 fixed on the output shaft of the polishing motor 73; because the entire inner groove of the heating plate A needs to be sandblasted during production, there will be sand on the inner groove surface A3 after spraying, so it is necessary to polish first, throw away the sand, and then sand.

[0065] The polishing motion assembly includes a fourth supporting column 75 and a second lifting and lateral movement device 76 connected to the fourth supporting column 75, and the polishing lock plate 71 is fixed on the second lifting and lateral movement device 76;

[0066] The polishing lock plate 71 is provided with an arc-shaped sliding hole, and the motor bracket 72 is provided with a fastening hole corresponding to the arc-shaped sliding hole. Similarly, after the fastening unit passes through the fastening hole and the arc-shaped sliding hole, the fastening unit is tightened after adjusting the angle, thereby locking the angle of the wire drawing wheel 74.

[0067] like Figures 11 to 13 As shown, the sanding mechanism 8 includes a sanding motion component and a sanding component connected to the sanding motion component, and the sanding component includes a movable locking plate 81, and the movable locking plate 81 is connected with a sanding belt support device 82 for holding the sanding belt B against the heating disk, a sanding belt retracting device 83 for retracting and unwinding the rolled sanding belt B, a sanding belt guide device 84 for guiding the sanding belt B in and out of the sanding belt support device 82, and a sanding belt tensioning device 85 for tensioning the sanding belt B.

[0068] The sanding belt support device 82 includes a bearing support 821 fixed at the lower part of the movable locking plate 81, and the left and right sides of the bearing support 821 are provided with sanding belt channels 822 for the sanding belt B to slide in a U-turn manner. The bottom of the bearing support 821 is connected to a locking block 823 with a movable angle adjustment, and the bottom of the locking block 823 is fixed with a sanding belt pressing block 824 that presses the sanding belt B on the heating plate; the locking block 823 can drive the sanding belt pressing block 824 to swing left and right, so that the sanding belt pressing block 824 can press the sanding belt B against different end surfaces of the heating plate, and when used in conjunction with a rotatable feeding clamp, the sanding belt B can perform wire drawing on the surface of the heating plate.

[0069] The sanding belt rewinding device 83 includes an unwinding turntable 831 and a winding turntable 832 that rotate on the upper part of the movable locking plate 81, and the sanding belt guide device 84 and the sanding belt support device 82 are arranged between the unwinding turntable 831 and the winding turntable 832 along the sliding direction of the sanding belt B, and the movable locking plate 81 is fixedly connected with a winding and unwinding power component that drives the unwinding turntable 831 and the winding turntable 832 to rotate; through the cooperation between the unwinding turntable 831 and the winding turntable 832, automatic feeding can be achieved after each section of the sanding belt B is ground by a set number of heating disks, thereby ensuring the roughness of the sanding belt B and maintaining the wire drawing effect of each heating disk.

[0070] In this embodiment, the upper part of the movable locking plate 81 is connected to a longitudinal locking plate 811, the unwinding turntable 831 is rotatably connected to the longitudinal locking plate 811, the middle position of the longitudinal locking plate 811 is connected to a transverse locking plate 812, and the winding turntable 832 is rotatably connected to the transverse locking plate 812, so that the winding turntable 832 is arranged obliquely below the unwinding turntable 831;

[0071] In addition, the unwinding and winding power assembly includes an unwinding motor 833 and a winding motor 834 fixed above and below the longitudinal locking plate 811, and the output shafts of the unwinding motor 833 and the winding motor 834 are connected with driving pulleys, and the unwinding turntable 831 and the winding turntable 832 are both connected with driven pulleys, and the driven pulleys are connected to the driving pulleys through a transmission belt, so that the unwinding motor 833 and the winding motor 834 respectively drive the unwinding turntable 831 and the winding turntable 832 to rotate in steps.

[0072] The abrasive belt guide device 84 includes a first introduction wheel 841 and a second introduction wheel 842 rotatably connected to the movable locking plate 81, the first introduction wheel 841 and the second introduction wheel 842 are placed between the unwinding turntable 831 and the abrasive belt support device 82, the first introduction wheel 841 is arranged close to the unwinding turntable 831, and the second introduction wheel 842 is arranged close to the abrasive belt support device 82;

[0073] The sanding belt guide device 84 also includes a first guide wheel 843 and a second guide wheel 844 rotatably connected to the movable locking plate 81, the first guide wheel 843 and the second guide wheel 844 are placed between the sanding belt support device 82 and the winding turntable 832, the first guide wheel 841 is arranged close to the sanding belt support device 82, and the second guide wheel 844 is arranged close to the winding turntable 832.

[0074] Since the distance between the unwinding turntable 831 and the winding turntable 832 is greater than the distance between the two sanding belt channels 822, the sanding belt guide device 84 can change the sliding direction of the sanding belt B so that the sanding belt B can enter and exit the sanding belt channel 822 as straight as possible, avoiding friction with the sanding belt support device 82.

[0075] The sanding belt tensioning device 85 includes a tensioning slide plate 851 and a tensioning push plate 852. The tensioning push plate 852 is slidably connected to the tensioning slide plate 851 through a tensioning slide group 853. A tensioning cylinder 854 is fixed to one side of the tensioning slide plate 851. The piston shaft of the tensioning cylinder 854 is connected to the tensioning push plate 852. A guide wheel seat 855 is connected to the tensioning push plate 852. The second introduction wheel 842 is rotatably connected to the guide wheel seat 855 and serves as a tensioning wheel. The tensioning cylinder 854 can push the second introduction wheel 842 to slide back and forth, and can adjust the force of pressing the sanding belt B so that the sanding belt B can be adjusted in tightness.

[0076] The movable locking plate 81 is also fixedly connected to a sanding belt clamping cylinder 86 and a fixed clamping plate 862, and the piston shaft of the sanding belt clamping cylinder 86 is connected to a movable clamping plate 861 that moves relative to the fixed clamping plate 862, and a clamping channel is formed between the movable clamping plate 861 and the fixed clamping plate 862, and the clamping channel is arranged between the unwinding turntable 831 and the first introduction wheel 841; when the sanding belt retracting device 83 finishes feeding the sanding belt B, the sanding belt B will rebound and cannot be completely tightened, so the sanding belt B is clamped by the movable clamping plate 861 and the fixed clamping plate 862 to keep the sanding belt B in a tightened state.

[0077] The bearing bracket 821 includes a bearing lock plate 8211 arranged at the front and rear and a middle limit plate 8212 connecting the front and rear bearing lock plates 8211. A sanding belt channel 822 is formed between the front and rear bearing lock plates 8211 and the middle limit plate 8212. The two sanding belt channels 822 are arranged parallel to each other, and a plurality of tensioning shafts 8213 limited to the sanding belt B are connected along the sanding belt channel 822 between the front and rear bearing lock plates 8211.

[0078] The bearing bracket 821 guides the sanding belt B to enter and exit the two sanding belt channels 822, which can narrow the distance between the sanding belts B and help the sanding belt B to grind the end surface of the narrow position of the heating plate. In addition, the tensioning shaft 8213 can limit the sanding belt B, and the roller on the tensioning shaft 8213 can reduce the friction of the sanding belt B.

[0079] A bevel locking block 825 is connected to the bottom of the bearing bracket 821, and the locking block 823 is rotatably connected to the bevel locking block 825 via the central axis, and the locking block 823 is provided with at least one fastening hole 8231 along the outer periphery of the central axis, and the bevel locking block 825 is provided with an arc-shaped sliding hole 8251 corresponding to the rotation path of the fastening hole 8231, and a fastening unit (a combination of a bolt and a nut) is connected between the fastening hole 8231 and the arc-shaped sliding hole 8251. After adjusting the position, the fastening unit is tightened to fix the left and right angles of the locking block 823; the angle of the sanding belt pressing block 824 can be adjusted according to the end surface position of the heating disk to adapt to different grinding end surfaces of the heating disk.

[0080] The locking block 823 and the sanding belt pressing block 824 are interconnected to form an unequal-sided trapezoidal structure, wherein the left and right sides of the locking block 823 are provided with limiting grooves 8232 adapted to the width of the sanding belt B, wherein the locking block 823 is connected to a baffle 826 on the side corresponding to the discharge of the sanding belt B, and the sanding belt B is limited between the baffle 826 and the limiting groove 8232, so that the sanding belt B remains in contact with the left and right sides of the locking block 823 during the sliding process, and the sanding belt B realizes the limiting effect.

[0081] The movable locking plate 81 is also fixedly connected to a travel switch 87, on which a travel switch key 871 is provided. The travel switch key 871 is pressed against the sanding belt B between the second guide wheel 844 and the winding turntable 832; the travel switch 87 is mainly used to detect whether the sanding belt B is broken or whether the sanding belt B is used up.

[0082] In addition, the sanding motion assembly includes a fifth supporting column 88 and a third lifting and lateral movement device 89 connected to the fifth supporting column 88, and the movable locking plate 81 is fixed to the third lifting and lateral movement device 89;

[0083] In addition, if Fig.14As shown, the first lifting and transverse moving device 53, the second lifting and transverse moving device 76 and the third lifting and transverse moving device 89 all include a longitudinal accordion module 6A and a transverse accordion module 6B connected to the longitudinal accordion module 6A. The longitudinal accordion module 6A and the transverse accordion module 6B of the first lifting and transverse moving device 53, the second lifting and transverse moving device 76 and the third lifting and transverse moving device 89 have the same structure, and the difference lies in the different movement directions. Moreover, the longitudinal accordion module 6A has the same or similar structure to the longitudinal accordion module 6A of the first lifting device 63, so it will not be elaborated in detail.

[0084] like Figures 16 to 20 As shown, the feeding clamp 3 includes a clamp seat assembly 31 with a clamping station 301 on the top surface, and a plurality of bearing clamp assemblies 32 that slide radially back and forth are provided on the top surface of the clamp seat assembly 31 along the outer periphery of the clamping station 301, and a clamp screw plate 33 and a lifting drive device 34 for controlling the clamp screw plate 33 to rise and fall along the axial direction are also connected to the clamp seat assembly 31, and a clamp rod 35 is provided between the clamp screw plate 33 and the bearing clamp assembly 32, and the lower part of the clamp rod 35 is rotatably hinged to the clamp screw plate 33, and the upper part of the clamp rod 35 is rotatably hinged to the bearing clamp assembly 32, and the clamp screw plate 33 that rises and falls drives the bearing clamp assembly 32 to slide back and forth through the clamp rod 35 to realize the loosening or clamping of the workpiece A.

[0085] This sanding machine adopts this clamp structure, so that the clamp structure can adapt to the assembly line work of the sanding machine. The up and down lifting action of the clamp screw plate 33 drives several bearing clamp assemblies 32 to slide horizontally forward and backward, so that the clamp structure can be fully compatible with workpieces A of various diameter specifications. The workpiece A is clamped firmly and stably, which can improve the fixing effect, ensure the processing accuracy of the workpiece A, and can quickly complete the grasping or releasing action, thereby improving the processing efficiency.

[0086] In this embodiment, four bearing clamp assemblies 32 are provided, and the four bearing clamp assemblies 32 are distributed in a cross structure.

[0087] The bearing clamp assembly 32 includes a slide rail pair, a fixture sliding lock block 321 and a positioning bearing clamp 322. The fixture sliding lock block 321 is slidably connected to the top surface of the fixture seat assembly 31 through the slide rail pair. The positioning bearing clamp 322 is rotatably connected to the top of the fixture sliding lock block 321 through a rotating shaft, and the positioning bearing clamp 322 is provided with a second V-shaped clamping opening 3221 facing the clamping station 301.

[0088] The positioning bearing clamp 322 is driven to slide back and forth by the fixture sliding lock block 321 to complete the loosening or clamping action of the workpiece A, and the positioning bearing clamp 322 is rotatably connected to the fixture sliding lock block 321. After the positioning bearing clamp 322 touches the workpiece A, the flexible clamp principle can be used to make the second V-shaped clamp 3221 automatically adjust and clamp the workpiece A.

[0089] A pair of locking block hinged arms 3211 extend vertically downward from the rear end of the clamp sliding locking block 321, and the bottom ends of the locking block hinged arms 3211 are rotatably hinged to the upper part of the clamp clamping rod 35; a number of pairs of hinged seats 331 extend outward from the sides of the clamp screw plate 33 corresponding to the number of the clamp screw plates 33, and the hinged seats 331 are rotatably hinged to the lower part of the clamp clamping rod 35; the clamp clamping rod 35 is movably hinged between the clamp sliding locking block 321 and the clamp screw plate 33, so that the up and down lifting action of the clamp screw plate 33 is converted into the forward and backward sliding of the clamp sliding locking block 321.

[0090] The lifting drive device 34 includes a ball screw 341 and a stepper motor or a servo motor 342. The ball screw 341 is connected to the upper part of the clamp seat assembly 31 and rotates along the central axis direction. The stepper motor or the servo motor 342 is fixed to the lower part of the clamp seat assembly 31, and its output shaft is connected to the ball screw 341. The clamp screw plate 33 is fixed on the nut sleeve 343 of the ball screw 341. The ball screw 341 is used to realize the up and down lifting of the clamp screw plate 33, and the rotational motion is converted into linear motion, which can reduce friction and noise. According to the rotation speed of the stepper motor or the servo motor 342, high-speed lifting can be achieved, and the movement efficiency is high.

[0091] The clamp seat assembly 31 includes a clamping jaw cylinder lock plate 311 and a rotating bearing sleeve 312, and the clamping jaw cylinder lock plate 311 and the rotating bearing sleeve 312 are connected by a plurality of optical axes 313. The clamp screw plate 33 is provided with a side hole 332 which forms a linear sliding fit with the optical axis 313. The clamp screw plate 33 cooperates with the optical axis 313 through the side hole 332 and has a certain guiding effect, which helps the clamp screw plate 33 to rise and fall.

[0092] A jig positioning shaft 36 is connected to the center of the top surface of the jig seat assembly 31, and a plurality of bearing clamp assemblies 32 are evenly distributed along the periphery of the jig positioning shaft 36. A jig positioning support plate 37 is connected to the top end of the jig positioning shaft 36. The jig positioning support plate 37 constitutes a clamping station 301. The jig replacement can be quickly completed by only replacing the jig positioning support plate 37.

[0093] The slide rail pair mainly includes a clamp fixed slide rail 323 and a clamp slider 324 slidably connected to the clamp fixed slide rail 323. The clamp fixed slide rail 323 is radially fixed on the top surface of the clamp cylinder lock plate 311, and the clamp sliding lock block 321 is fixed on the clamp slider 324. In addition, the clamp cylinder lock plate 311 includes a circular main body, and the edge of the circular main body is radially extended with extension plates corresponding to the number of clamp fixed slide rails 323. A part of the clamp fixed slide rail 323 is arranged on the circular main body, and the other part is arranged on the extension plate. The pair of locking block articulated arms 3211 extend along the left and right sides of the clamp fixed slide rail 323 and the extension plate to the bottom of the clamp cylinder lock plate 311 and are hinged to the clamp clamp rod 35.

[0094] A screw support 344 is provided on the top surface of the clamping jaw cylinder lock plate 311, and the top end of the ball screw 341 is rotatably connected to the screw support 344; a screw support seat 345 is provided on the top of the rotating bearing sleeve 312, and the bottom end of the ball screw 341 is rotatably connected to the screw support seat 345 and extends into the rotating bearing sleeve 312; the screw support 344 and the screw support seat 345 ensure the axial rotation of the ball screw 341.

[0095] The bottom of the rotating bearing sleeve 312 is also connected to a servo plate 314, the stepper motor or servo motor 342 is fixedly connected to the servo plate 314, and the output shaft of the stepper motor or servo motor 342 extends into the rotating bearing sleeve 312, and a coupling 346 is provided in the rotating bearing sleeve 312, and the lower end of the ball screw 341 is connected to the output shaft of the stepper motor or servo motor 342 through the coupling 346; the coupling 346 is used to prevent the ball screw 341 from being subjected to excessive load, and plays a role in overload protection. In addition, it has a function of compensating for offset. The coupling 346 can also compensate for the inaccurate manufacturing and installation between the two shafts.

[0096] The rotary drive device 22 includes a rotary closed-loop motor 211, a driving wheel is fixed on the output shaft of the rotary closed-loop motor 211, a driven wheel is fixed on the clamp seat assembly 31, the rotary closed-loop motor 211 is transmission-connected to the clamp seat assembly 31 through the cooperation of the driving wheel and the driven wheel, and the rotary closed-loop motor 211 can be a stepping motor, a servo motor, or a speed-regulating motor.

[0097] The driving wheel is a first belt pulley 212 , and the driven wheel is a second belt pulley 213 . The first belt pulley 212 is connected to the second belt pulley 213 via a belt 214 .

[0098] Combined with the above structure, its working principle is:

[0099] 1. A picking head 43 in the loading and unloading mechanism 4 sucks up a heating disk A at the workpiece stacking position of the heating disk A. After the rotary driver 42 drives the rotary disk 41 to rotate 180°, the picking head 43 is transferred to the front above the feeding fixture 3 placed on the divider turntable 21. At the same time, another picking head 43 is transferred to the rear and placed above the workpiece stacking position (if a finished heating disk A is clamped away, it is first transferred to the finished product stacking position and the finished heating disk A is placed first). Then the front picking head 43 places the back of the heating disk A on the feeding fixture 3.

[0100] 2. The turntable driver drives the divider turntable 21 to rotate step by step, and drives the feeding fixture 3 to rotate axially to send the heating plate A to the bottom of the welding slag scraping mechanism 5. The first lifting and transverse movement device 53 controls the welding slag knife 55 to move downward, so that the welding slag knife 55 cuts into the edge position A2 of the heating tube A1 in the heating plate A. Then the feeding fixture 3 drives the heating plate A to rotate axially, so that the welding slag knife 55 slides along the edge position A2 of the heating tube A1, and the welding slag at the edge position A2 is scraped off.

[0101] 3. After the welding slag is scraped off, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the flipping mechanism 6. The first lifting device 63 works to control the flipping jaws 64 and the flipping drive device 65 to move downward, so that the flipping jaws 64 move down to the left and right sides of the heating plate A. The clamping cylinder 653 in the flipping drive device 65 works to drive the two flipping jaws 64 to move in opposite directions and clamp the heating plate A. After the first lifting device 63 lifts the flipping jaws 64 and the flipping drive device 65 to a certain height, the flipping motor 654 in the flipping drive device 65 works, and the pulley combination structure drives the clamping cylinder 653 and the flipping jaws 64 to rotate axially. The flipped heating plate A is finally placed back on the feeding fixture 3 with the front side to complete the up and down flipping work.

[0102] 4. After the upside-down flipping is completed, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the polishing mechanism 7, and the second lifting and transverse movement device 76 works to control the drawing wheel 74 to move downward, so that the drawing wheel 74 is against the inner groove surface A3 of the heating plate A, and then the polishing motor 73 drives the drawing wheel 74 to rotate at high speed, and then the feeding fixture 3 synchronously drives the heating plate A to rotate axially, so that the drawing wheel 74 rolls along the annular inner groove surface A3 of the heating tube A1, and the sand on the inner groove surface A3 is thrown away.

[0103] 5. After polishing is completed, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the first sanding mechanism 8, and the third lifting and transverse movement device 89 works to control the downward movement of the sanding assembly, wherein the sanding belt pressing block 824 of the sanding belt support device 82 presses the sanding belt B against the inner groove surface A3, and then the feeding fixture 3 synchronously drives the heating plate A to rotate axially, so that the sanding belt B slides along the inner groove surface A3 of the heating tube A1 to complete the wire drawing of the inner groove surface A3.

[0104] 6. After the wire drawing of the inner groove surface A3 is completed, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the second sanding mechanism 9, and the third lifting and transverse movement device 89 of the second sanding mechanism 9 works to control the downward movement of the sanding assembly, wherein the sanding belt support device 82 presses the sanding belt B against the convex edge top surface A4 through the bottom surface of the sanding belt pressing block 824, and then the feeding fixture 3 synchronously drives the heating plate A to rotate axially, so that the sanding belt B slides along the convex edge top surface A4 of the heating tube A1, and the wire drawing of the convex edge top surface A4 is completed. After that, the third lifting and transverse movement device 89 controls the movement of the sanding assembly again, so that the side of the sanding belt pressing block 824 presses the sanding belt B against the inner side surface A5 of the convex edge, and the wire drawing of the inner side surface A5 of the convex edge is completed with the same action.

[0105] 7. After the drawing of the convex edge top surface A4 and the convex edge inner side surface A5 is completed, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the third sanding mechanism 10, and the third lifting and transverse movement device 89 of the third sanding mechanism 10 works to control the sanding assembly to move downward, and the bottom surface of the sanding belt pressing block 824 presses the sanding belt B against the central part A6 of the surface of the heating plate A, and the drawing of the central part A6 of the surface of the heating plate A is completed with the same action.

[0106] 8. After the wire drawing of the center part A6 is completed, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the fourth sanding mechanism 11, and the third lifting and transverse movement device 89 of the fourth sanding mechanism 11 works to control the sanding assembly to move downward. The bottom surface of the sanding belt pressing block 824 presses the sanding belt B against the outer ring part A7 of the disk surface, and the wire drawing of the outer ring part A7 of the heating plate A is completed with the same action.

[0107] 9. After the outer ring part A7 is drawn, the divider turntable 21 continues to rotate axially to send the heating plate A to the bottom of the loading and unloading mechanism 4 again, and the processed heating plate is sent to the finished product stacking position by the action of step 1.

[0108] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A sanding machine for processing a heating plate, comprising a machine base, characterized in that: An automatic feeding mechanism for step-by-step transport of the heating plate is arranged on the machine base, and a loading and unloading mechanism for placing the heating plate on the automatic feeding mechanism, a welding slag scraping mechanism for scraping welding slag on the edge of the heating tube in the heating plate, a turning mechanism for turning the heating plate upside down, a polishing mechanism for polishing the inner groove surface of the heating plate, and a plurality of sanding mechanisms arranged in sequence and used for grinding and drawing each surface of the heating plate are arranged in sequence along the transport direction of the automatic feeding mechanism.

2. A sanding machine for processing a heating plate according to claim 1, characterized in that The plurality of sanding mechanisms include a first sanding mechanism for grinding the inner groove surface of the heating plate, a second sanding mechanism for grinding the top surface and the inner side surface of the convex edge of the heating plate, a third sanding mechanism for grinding the central part of the heating plate surface, and a fourth sanding mechanism for grinding the outer ring part of the heating plate surface.

3. A sanding machine for processing a heating plate according to claim 1, characterized in that The automatic feeding mechanism includes a divider turntable and a turntable driver for controlling the stepping rotation of the divider turntable. The divider turntable is evenly distributed around its rotation center with a plurality of feeding fixtures for clamping the heating plate and a rotation driving device for controlling the axial rotation of the feeding fixture on the divider turntable.

4. A sanding machine for processing a heating plate according to claim 1, characterized in that :The loading and unloading mechanism includes a rotating disk and a rotating driver that controls the rotating disk to rotate back and forth at 180°. The rotating disk is evenly distributed around its rotation center with two groups of front and rear pickup heads and a material picking and placing drive device that controls the translational movement of the pickup heads; the pickup head includes a suction pipe, the upper end of the suction pipe is connected to the control air circuit, and the lower end of the suction pipe is connected to a vacuum suction cup.

5. A sanding machine for processing a heating plate according to claim 1, characterized in that :The welding slag scraping mechanism includes a slag scraping motion component and a welding slag scraping component fixedly connected to the slag scraping motion component; the welding slag scraping component includes a slag scraping locking plate connected to the slag scraping motion component, and the slag scraping locking plate is connected to a welding slag knife and an angle adjustment device for adjusting the falling angle of the welding slag knife.

6. A sanding machine for processing a heating plate according to claim 1, characterized in that The flip mechanism includes a flip motion component and a flip component fixedly connected to the flip motion component, the flip component includes a lifting support frame and two flip clamps arranged oppositely, the flip clamps are connected oppositely to the left and right sides of the lifting support frame through a flip driving device, and the flip driving device drives the flip clamps to rotate along their own axes and move forward and backward oppositely, so that a clamping flip space with an adjustable width is formed between the two flip clamps.

7. A sanding machine for processing a heating plate according to claim 1, characterized in that :The polishing mechanism includes a polishing motion component and a polishing component fixedly connected to the polishing motion component; the polishing component includes a polishing locking plate connected to the scraping motion component, and the polishing locking plate is connected to a swingable and adjustable motor bracket, and a polishing motor and a drawing wheel fixed to the output shaft of the polishing motor are fixed on the motor bracket.

8. A sanding machine for processing a heating plate according to claim 1 or 2, characterized in that : The sanding mechanism includes a sanding motion component and a sanding component connected to the sanding motion component, the sanding component includes a movable locking plate, the movable locking plate is connected with a sanding belt support device for holding the sanding belt against the surfaces of the heating plate, a sanding belt retracting device for retracting and unwinding the rolled sanding belt, a sanding belt guide device for guiding the sanding belt in and out of the sanding belt support device, and a sanding belt tensioning device for tensioning the sanding belt.

9. A sanding machine for processing a heating plate according to claim 6, characterized in that : The flip driving device includes a flip bracket, which is rotatably connected to the flip main shaft, the inner end of the flip main shaft is axially connected to the clamping cylinder, and the piston shaft of the clamping cylinder is connected to the flip clamping claw; the flip bracket is fixedly connected to the flip motor, the output shaft of the flip motor is connected to the driving pulley, the flip main shaft is fixed with a driven pulley, and the driving pulley is connected to the driven pulley through a transmission belt.

10. A sanding machine for processing a heating plate according to claim 3, characterized in that : The feeding clamp includes a clamp seat assembly with a clamping station on the top surface, and a plurality of bearing clamp assemblies that slide radially back and forth are arranged along the outer circumference of the clamping station on the top surface of the clamp seat assembly, and the clamp seat assembly is also connected to a clamp screw plate and a lifting drive device for controlling the clamp screw plate to rise and fall along the axial direction, and a clamp clamping rod is arranged between the clamp screw plate and the bearing clamp assembly, the lower part of the clamp clamping rod is rotatably hinged to the clamp screw plate, and the upper part of the clamp clamping rod is rotatably hinged to the bearing clamp assembly, and the clamp screw plate that rises and falls drives the bearing clamp assembly to slide back and forth through the clamp clamping rod to realize the loosening or clamping of the workpiece.

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