Grinding wheel loading and unloading device of numerical control grinding machine

Abstract

The invention discloses a grinding wheel loading and unloading device of a numerical control grinding machine, which belongs to the technical field of numerical control grinding machines and comprises a frame, a hand wheel, a transmission shaft, a front side mounting plate, a bearing seat mounting plate, a lead screw, a guide rail and a grinding wheel mounting mechanism. A front side mounting plate is vertically arranged on the frame, the lead screw is rotatably arranged on the side wall of the front side mounting plate and is in threaded connection with the grinding wheel mounting mechanism, the guide rail is arranged beside the lead screw, and the grinding wheel mounting mechanism is connected with the guide rail; the first end of the transmission shaft is connected with the hand wheel, the second end of the transmission shaft is connected with the lead screw, the hand wheel drives the transmission shaft to rotate, and then the transmission shaft drives the lead screw to rotate so as to drive the grinding wheel mounting mechanism to ascend and descend. The liftable grinding wheel mounting mechanism can be driven to move through the frame, and the grinding wheel is driven to lift through the grinding wheel mounting mechanism, so that the difficulty of disassembling and assembling the grinding wheel by workers is greatly reduced, and the disassembling and assembling safety is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of CNC grinders, and in particular, to a grinding wheel loading and unloading device for a CNC grinder. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present application. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present application.

[0003] The grinding wheel (including flange) of a certain CNC grinder weighs 60kg. The grinding wheel is installed at a height of 1.2m-1.3m from the ground. The grinding wheel is fastened with pairs of bolts and nuts on the CNC machine. The operator usually replaces the grinding wheel by manual removal.

[0004] Because there is no platform at the bottom of the grinding wheel, the grinding wheel is suspended in the air. Usually, only one CNC operator can perform the disassembly process. The operator can only hold the grinding wheel with one hand and disassemble the paired bolts and nuts with the other hand. The inconvenient operation leads to long operation time and the operator's hand fatigue. In addition, the grinding wheel has a large outline and heavy weight. There is a risk of the grinding wheel falling during operation, which poses a safety hazard of hitting the operator's feet. The later installation of the new grinding wheel is also done by manual installation, so there is also the need for multiple workers to work at the same time, which has low installation efficiency, high assembly difficulty, and it is difficult to effectively avoid safety risks.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In view of at least one of the above technical problems, the present application provides a CNC grinder grinding wheel loading and unloading device, which can drive a liftable grinding wheel mounting mechanism to move through a frame, and drive the grinding wheel to be lifted and lowered through the grinding wheel mounting mechanism to avoid the grinding wheel being suspended in the air, greatly reducing the difficulty of workers disassembling and installing the grinding wheel and ensuring the safety of disassembly and assembly.

[0007] According to one aspect of the present application, a CNC grinding wheel loading and unloading device is provided, which is used to disassemble and assemble a grinding wheel with a flange on a CNC grinding machine. The CNC grinding wheel loading and unloading device includes a frame, a hand wheel, a transmission shaft, a front mounting plate, a bearing seat mounting plate, a lead screw, a guide rail and a grinding wheel mounting mechanism:

[0008] A caster assembly is provided at the bottom of the frame, and the caster assembly is used to drive the frame to move; a front mounting plate is vertically provided on the frame, a lead screw is rotatably provided on the side wall of the front mounting plate, and the lead screw is connected to a grinding wheel mounting mechanism through a thread, a guide rail is provided beside the lead screw, and the grinding wheel mounting mechanism is connected to the guide rail, and the guide rail is used to guide the grinding wheel mounting mechanism, and the grinding wheel mounting mechanism is used to clamp the grinding wheel;

[0009] A horizontal bearing seat mounting plate is arranged on the top of the front mounting plate, and a rolling bearing seat is arranged on the bearing seat mounting plate. The rolling bearing seat is used to be connected to the transmission shaft, and the first end of the transmission shaft is used to be connected to the handwheel, and the second end of the transmission shaft is used to be connected to the lead screw through the bevel gear assembly. The handwheel is used to drive the transmission shaft to rotate, and then the lead screw is driven to rotate through the transmission shaft to drive the grinding wheel mounting mechanism to rise and fall.

[0010] In some embodiments of the present application, the grinding wheel mounting mechanism includes an upper limit piece and a grinding wheel mounting piece for upper and lower splicing, and a locking assembly, the locking assembly is used to lock and fix the upper limit piece and the grinding wheel mounting piece that are assembled upper and lower, a grinding wheel mounting groove for placing the grinding wheel is opened on the top of the grinding wheel mounting piece, a grinding wheel limit groove for limiting the upper part of the grinding wheel is opened on the bottom of the upper limit piece, a first semicircular through hole is opened on the side wall of the grinding wheel mounting piece, a second semicircular through hole is opened on the side wall of the upper limit piece, the second semicircular through hole is used to dock with the first semicircular through hole to enclose a limiting through hole, and the limiting through hole is used to support and limit the flange on the grinding wheel.

[0011] In some embodiments of the present application, the locking assembly includes a pull buckle and a locking hook. The pull buckle is arranged on the side wall of the upper limit member, and the locking hook is arranged on the side wall of the grinding wheel mounting member. The pull buckle is used to cooperate with the locking hook member to splice and fix the upper limit member and the grinding wheel mounting member up and down.

[0012] In some embodiments of the present application, buffer pads are provided on the inner wall surfaces of the grinding wheel mounting groove and the grinding wheel limiting groove.

[0013] In some embodiments of the present application, a plurality of coaxial limit grooves are provided in an annular array on the side wall of the grinding wheel mounting groove, and each circle of the limit grooves is coaxially arranged along the center of the first semicircular through hole. The grinding wheel mounting mechanism also includes a limit support, a first locking member and a second locking member. There are multiple limit supports, and each limit support is used to be passed through each limit groove of the same circle to support grinding wheels of different diameters through each limit support; the first locking member and the second locking member are used to respectively cooperate with the preset limit screw holes of the limit support located on the two ends of the outer side of the grinding wheel mounting member to limit and fix the limit support in the limit groove.

[0014] In some embodiments of the present application, the grinding wheel mounting mechanism also includes an arc-shaped limit frame, an arc-shaped slide groove is opened in the limit frame, and a plurality of locking screw holes are spaced apart on the side wall of the limit frame. The first locking member is also used to pass through the locking screw hole and the limit screw hole in sequence, thereby connecting and locking the limit support member and the limit frame.

[0015] In some embodiments of the present application, a plurality of limiting plates are arranged in a circular array in the grinding wheel limiting groove, and each limiting plate is connected to the top wall of the grinding wheel limiting groove through a compression spring.

[0016] In some embodiments of the present application, a handwheel mounting seat and a handwheel limit seat are provided on the bearing seat mounting plate, the handwheel limit seat is arranged inside the handwheel mounting seat, a plurality of handwheel limit grooves are provided in a circular array of the handwheel limit seat, and a plurality of handwheel limit bosses are provided in a circular array on the handwheel, and each handwheel limit boss is used to cooperate with each handwheel limit groove to limit the rotation of the handwheel and the transmission shaft.

[0017] In some embodiments of the present application, the bevel gear assembly includes a first bevel gear and a second bevel gear for cooperating with each other, the first bevel gear is arranged at the second end of the transmission shaft, and the second bevel gear is arranged at the top end of the screw.

[0018] In some embodiments of the present application, the caster assembly includes fixed casters and movable casters, the fixed casters are arranged in pairs on the front side of the bottom of the frame, and the movable casters are arranged in pairs on the rear side of the bottom of the frame; a handle base is arranged on the frame, and a handle is arranged on the handle base.

[0019] This application has the following beneficial effects:

[0020] The grinding wheel loading and unloading device of the CNC grinder of the present application provides an installation environment through a movable frame, and a limited grinding wheel is installed through a grinding wheel installation mechanism. A front mounting plate is vertically arranged on the frame, a horizontal bearing seat mounting plate is arranged on the top of the front mounting plate, a rotatable screw is arranged on the side wall of the front mounting plate, a guide rail is arranged next to the screw, the screw is connected to the grinding wheel installation mechanism, and the guide rail guides the grinding wheel installation mechanism; at the same time, a rotatable transmission shaft is arranged on the bearing seat installation plate, a hand wheel is arranged at the first end of the transmission shaft, and a bevel gear is arranged at the second end of the transmission shaft. The assembly is connected to the lead screw, so that the transmission shaft can be driven to rotate by the handwheel, and then the lead screw can be driven to rotate, and the grinding wheel installation mechanism can be driven to rise and fall by the lead screw, so that the workers can adjust the grinding wheel to a suitable position for assembly by moving the frame and controlling the position of the grinding wheel installation mechanism, or first limit the grinding wheel on the grinder by the grinding wheel installation mechanism, and then take over by the grinding wheel installation mechanism after the grinding wheel is removed, so as to quickly and safely remove the grinding wheel, thereby greatly reducing the installation strength of the grinding wheel, ensuring the safety of disassembly and assembly of the grinding wheel, and improving the disassembly and assembly efficiency of the grinding wheel.

[0021] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, this application also has other purposes, features and advantages. The following will further describe this application in detail with reference to the figures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the present application;

[0024] Figure 2 It is a structural schematic diagram of a hand wheel of a preferred embodiment of the present application;

[0025] Figure 3 It is a structural schematic diagram of a hand wheel limit seat of a preferred embodiment of the present application;

[0026] Figure 4 It is a schematic diagram of the installation of the front side mounting plate of the preferred embodiment of the present application;

[0027] Figure 5 It is a structural schematic diagram of a grinding wheel mounting member of a preferred embodiment of the present application;

[0028] Figure 6 It is a schematic diagram of the installation of the limiting support plate of the preferred embodiment of the present application;

[0029] Figure 7 It is a schematic diagram of the structure of the limit frame of the preferred embodiment of the present application;

[0030] Legend: 100, frame; 1, hand wheel; 101, hand wheel limit boss; 2, fixed side mounting seat; 3, grinding wheel mounting piece; 301, grinding wheel mounting groove; 302, limit groove; 303, limit frame; 304, first locking piece; 305, locking screw hole; 306, limit support piece; 307, slide groove; 308, second locking piece; 4, first bevel gear; 5, buffer pad; 6, front side mounting plate; 7, upper limit piece; 8, lead screw; 9, hand wheel limit seat; 91, hand wheel limit groove; 10, push handle; 11, push handle base; 12, bearing seat mounting Mounting plate; 13. Handwheel mounting seat; 14. Bottom plate mounting seat; 15. Screw nut fixing seat; 16. Slide rail mounting seat; 17. First platform support plate; 18. Second platform support plate; 19. Second bevel gear; 20. Guide rail; 21. Transmission shaft; 22. Connecting bolt; 23. First locking screw; 24. Second nut; 25. Countersunk head screw; 26. Second locking screw; 27. Third locking screw; 28. Fourth locking screw; 29. ​​Fifth locking screw; 30. Fixed caster; 31. Movable caster; 32. Rolling bearing seat; 33. Buckle. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0032] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the present application; Figure 2 It is a structural schematic diagram of a hand wheel of a preferred embodiment of the present application; Figure 3 It is a structural schematic diagram of a hand wheel limit seat of a preferred embodiment of the present application; Figure 4 It is a schematic diagram of the installation of the front side mounting plate of the preferred embodiment of the present application; Figure 5 It is a structural schematic diagram of a grinding wheel mounting member of a preferred embodiment of the present application; Figure 6 It is a schematic diagram of the installation of the limiting support plate of the preferred embodiment of the present application; Figure 7 It is a schematic diagram of the structure of the limit frame of the preferred embodiment of the present application.

[0033] A grinding wheel loading and unloading device for a CNC grinder is used for disassembling and assembling a grinding wheel with a flange on a CNC grinder. The grinding wheel loading and unloading device for a CNC grinder comprises a frame 100, a hand wheel 1, a transmission shaft 21, a front mounting plate 6, a bearing seat mounting plate 12, a lead screw 8, a guide rail 20 and a grinding wheel mounting mechanism:

[0034] A caster assembly is provided at the bottom of the frame 100, and the caster assembly is used to drive the frame 100 to move; a front mounting plate 6 is vertically provided on the frame 100, a lead screw 8 is rotatably provided on the side wall of the front mounting plate 6, and the lead screw 8 is connected to the grinding wheel mounting mechanism through a thread, a guide rail 20 is provided beside the lead screw 8, and the grinding wheel mounting mechanism is connected to the guide rail 20, and the guide rail 20 is used to guide the grinding wheel mounting mechanism, and the grinding wheel mounting mechanism is used to clamp the grinding wheel;

[0035] A horizontal bearing seat mounting plate 12 is arranged on the top of the front mounting plate 6, and a rolling bearing seat 32 is arranged on the bearing seat mounting plate 12. The rolling bearing seat 32 is used to connect with the transmission shaft 21. The first end of the transmission shaft 21 is used to connect with the handwheel 1. The second end of the transmission shaft 21 is used to connect with the lead screw 8 through a bevel gear assembly. The handwheel 1 is used to drive the transmission shaft 21 to rotate, and then drive the lead screw 8 to rotate through the transmission shaft 21 to drive the grinding wheel mounting mechanism to rise and fall.

[0036] In some embodiments, two guide rails 20 are provided, and the two guide rails 20 are respectively arranged on both sides of the screw 8. A slider is slidably arranged on each guide rail 20, and the sliders on both sides are connected to the grinding wheel mounting mechanism through the first platform support plate 17 and the second platform support plate 18 respectively.

[0037] In some embodiments, a screw nut fixing seat 15 is provided on the screw 8, and the grinding wheel mounting mechanism is connected to the screw nut fixing seat 15. The screw 8 drives the screw nut fixing seat 15 and the grinding wheel mounting mechanism to rise and fall by rotating.

[0038] The grinding wheel loading and unloading device of the CNC grinder of the present application provides an installation environment through a movable frame 100, and a limited grinding wheel is installed through a grinding wheel installation mechanism. A front side mounting plate 6 is vertically arranged on the frame 100, a horizontal bearing seat mounting plate 12 is arranged on the top of the front side mounting plate 6, a rotatable lead screw 8 is arranged on the side wall of the front side mounting plate 6, a guide rail 20 is arranged next to the lead screw 8, the lead screw 8 is connected to the grinding wheel installation mechanism, and the guide rail 20 guides the grinding wheel installation mechanism; at the same time, a rotatable transmission shaft 21 is arranged on the bearing seat mounting plate 12, a handwheel 1 is arranged at the first end of the transmission shaft 21, and the transmission shaft 21 The second end is connected with the lead screw 8 through the bevel gear assembly, so that the transmission shaft 21 can be driven to rotate by the handwheel 1, and then the lead screw 8 can be driven to rotate, and the grinding wheel installation mechanism can be driven to rise and fall by the lead screw 8, so that the workers can adjust the grinding wheel to a suitable position for assembly by moving the frame 100 and controlling the position of the grinding wheel installation mechanism, or first limit the grinding wheel on the grinder through the grinding wheel installation mechanism, and then take it over through the grinding wheel installation mechanism after the grinding wheel is removed, so as to quickly and safely remove the grinding wheel, thereby greatly reducing the installation strength of the grinding wheel, ensuring the safety of disassembly and assembly of the grinding wheel, and improving the disassembly and assembly efficiency of the grinding wheel.

[0039] Preferably, please refer to Figure 1As shown, the grinding wheel mounting mechanism includes an upper limiting member 7 and a grinding wheel mounting member 3 for upper and lower splicing, and a locking assembly, the locking assembly is used to lock and fix the upper limiting member 7 and the grinding wheel mounting member 3 that are assembled and connected up and down, a grinding wheel mounting groove 301 for placing the grinding wheel is provided on the top of the grinding wheel mounting member 3, a grinding wheel limiting groove for limiting the upper part of the grinding wheel is provided on the bottom of the upper limiting member 7, a first semicircular through hole is provided on the side wall of the grinding wheel mounting member 3, a second semicircular through hole is provided on the side wall of the upper limiting member 7, the second semicircular through hole is used to dock with the first semicircular through hole to enclose a limiting through hole, and the limiting through hole is used to support and limit the flange on the grinding wheel.

[0040] It is understandable that the grinding wheel mounting member 3 and the upper limiting member 7 can be assembled, and after the two are assembled, a limiting through hole is formed in the middle to support and limit the flange on the grinding wheel, so as to achieve the installation and limiting of the grinding wheel with the flange, and through the upper and lower assembled structure, the grinding wheel can be placed conveniently by removing the upper limiting member 7. The grinding wheel mounting member 3 and the upper limiting member 7 are both flat box-shaped structures, which will not cause excessive interference to the disassembly and assembly process of the grinding wheel.

[0041] Preferably, please refer to Figure 1 As shown, the locking assembly includes a pull buckle 33 and a locking hook. The pull buckle 33 is arranged on the side wall of the upper limit member 7, and the locking hook is arranged on the side wall of the grinding wheel mounting member 3. The pull buckle 33 is used to cooperate with the locking hook to splice and limit the upper limit member 7 and the grinding wheel mounting member 3 up and down.

[0042] It can be understood that by cooperating with the buckle 33 and the locking hook, the upper limit member 7 can be conveniently connected and limited with the grinding wheel mounting member 3. Since the grinding wheel is mainly loaded by the grinding wheel mounting member 3, the upper limit member 7 can be locked and connected with the grinding wheel mounting member 3 through a buckle structure with general connection strength. The buckle structure can realize the rapid locking and disassembly of the grinding wheel in the grinding wheel mounting mechanism, ensuring that the grinding wheel is not damaged during transportation, and the disassembly and assembly are convenient and efficient.

[0043] Preferably, buffer pads 5 are provided on the inner wall surfaces of the grinding wheel installation groove 301 and the grinding wheel limiting groove.

[0044] It is understandable that in order to ensure that the larger grinding wheel is not damaged during transportation, a grinding wheel installation mechanism with an upper and lower assembly structure is specially set up, and a buffer pad 5 is provided on the inner wall of the grinding wheel installation groove 301 and the grinding wheel limit groove. The buffer pad 5 is preferably made of rubber and is designed to be contoured according to the shape of the grinding wheel. The buffer pad 5 can support, balance and protect the grinding wheel, cooperate with the grinding wheel mounting member 3 to support the grinding wheel, and the upper limit member 7 shields and protects the grinding wheel to avoid bumping and damage to the grinding wheel during transportation.

[0045] Preferably, please refer to Figure 5 ,6 As shown in , 7, a plurality of coaxial limit grooves 302 are provided in an annular array on the side wall of the grinding wheel mounting groove 301, and each circle of the limit grooves 302 is coaxially arranged along the center of the first semicircular through hole. The grinding wheel mounting mechanism also includes a limit support 306, a first locking member 304 and a second locking member 308. There are multiple limit supports 306, and each limit support 306 is used to be inserted into each limit groove 302 of the same circle to support grinding wheels of different diameters through each limit support 306; the first locking member 304 and the second locking member 308 are used to respectively cooperate with the preset limit screw holes of the limit support 306 located on the two ends of the outer side of the grinding wheel mounting member 3, so as to limit and fix the limit support 306 in the limit groove 302.

[0046] It can be understood that the multiple limit grooves 302 arranged in each circle of annular array on the side wall of the grinding wheel mounting member 3 can cooperate with the multiple limit support members 306, and then the grinding wheel is supported and limited by the limit support members 306. Since the diameters of the limit grooves 302 in each circle are different, the limit support members 306 are arranged in the limit grooves 302 at different positions to achieve support and limitation of grinding wheels of different diameters, so as to meet the installation requirements of grinding wheels of different sizes and effectively improve the adaptability of the grinding wheel mounting mechanism.

[0047] Preferably, please refer to Figure 5 , 6 As shown in , 7, the grinding wheel mounting mechanism also includes an arc-shaped limit frame 303, in which an arc-shaped slide groove 307 is opened, and a plurality of locking screw holes 305 are spaced apart on the side wall of the limit frame 303. The first locking member 304 is also used to pass through the locking screw hole 305 and the limit screw hole in sequence, thereby connecting and locking the limit support member 306 with the limit frame 303.

[0048] It can be understood that one side of the limiting support member 306 can be limited by the limiting frame 303. At the same time, since each limiting support member 306 is connected to the limiting frame 303 through the first locking member 304, all the limiting support members 306 can be taken out of the limiting groove 302 or inserted into the limiting groove 302 at one time through the limiting frame 303, which greatly improves the efficiency of installing and adjusting the position of the limiting support member 306, thereby effectively improving the overall work efficiency.

[0049] It should be noted that the limiting support members 306 can slide in the sliding grooves 307 to adjust the positions of the limiting support members 306 so as to cooperate with the limiting grooves 302 at different positions.

[0050] Preferably, a plurality of limiting plates are arranged in an annular array in the grinding wheel limiting groove, and each limiting plate is connected to the top wall of the grinding wheel limiting groove via a compression spring.

[0051] It can be understood that the limit plate can press and limit the side wall of the upper part of the grinding wheel, and the compression spring can not only play a buffering role, but also adjust the position of the limit plate to adapt to the limiting requirements of grinding wheels of different sizes and ensure the stability of the limit plate in limiting the grinding wheel.

[0052] Preferably, please refer to Figure 1 As shown, a handwheel mounting seat 13 and a handwheel limiting seat 9 are provided on the bearing seat mounting plate 12. The handwheel limiting seat 9 is arranged in the handwheel mounting seat 13. The handwheel limiting seat 9 is provided with a plurality of handwheel limiting grooves 91 in a circular array. A plurality of handwheel limiting bosses 101 are provided on the handwheel 1 in a circular array. Each handwheel limiting boss 101 is used to cooperate with each handwheel limiting groove 91 to limit the rotation of the handwheel 1 and the transmission shaft 21.

[0053] It is understandable that when the stability of the grinding wheel mounting mechanism needs to be maintained, such as when the frame 100 is moving, it is necessary to avoid the handwheel 1 from being rotated erroneously, which will cause unnecessary movement of the grinding wheel mounting mechanism and affect the transportation of the grinding wheel. At this time, the handwheel 1 can be prevented from rotating by snapping the handwheel limiting boss 101 into the handwheel limiting groove 91 of the handwheel limiting seat 9.

[0054] It should be noted that the first end of the transmission shaft 21 is used to connect with the handwheel 1. Preferably, the handwheel 1 is sleeved on the transmission shaft 21 and connected through a flat key, so that the handwheel 1 can slide on the transmission shaft 21, thereby realizing the connection and disconnection of the handwheel 1 and the handwheel limit seat 9.

[0055] Preferably, please refer to Figure 1 As shown, the bevel gear assembly includes a first bevel gear 4 and a second bevel gear 19 for cooperating with each other. The first bevel gear 4 is arranged at the second end of the transmission shaft 21, and the second bevel gear 19 is arranged at the top end of the screw 8.

[0056] It can be understood that the transmission shaft 21 can cooperate with the second bevel gear 19 at the top of the screw 8 through the first bevel gear 4, so that the screw 8 is driven to rotate through the transmission shaft 21, which is convenient for transmitting the rotational motion of the handwheel 1, and the handwheel 1 is set on the bearing seat mounting plate 12, which can be convenient for workers to operate.

[0057] Preferably, please refer to Figure 1 As shown, the caster assembly includes a fixed caster 30 and a movable caster 31. The fixed casters 30 are arranged in pairs at the front side of the bottom of the frame 100, and the movable casters 31 are arranged in pairs at the rear side of the bottom of the frame 100. A push handle base 11 is arranged on the frame 100, and a push handle 10 is arranged on the push handle base 11.

[0058] It is understandable that the push handle 10 is provided on the frame 100 so that the worker can directly push the frame 100 to move, and the movable caster 31 can realize the flexible steering of the frame 100. It should be noted that the movable caster 31 preferably adopts a metal rim brake flat bottom movable caster to meet the braking function of the frame 100.

[0059] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0060] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection of this application.

Claims

1. A grinding wheel loading and unloading device for a CNC grinding machine, used for disassembling and assembling a grinding wheel with a flange on a CNC grinding machine, characterized in that: The grinding wheel loading and unloading device for a numerically controlled grinding machine comprises a frame (100), a hand wheel (1), a transmission shaft (21), a front side mounting plate (6), a bearing seat mounting plate (12), a lead screw (8), a guide rail (20) and a grinding wheel mounting mechanism: A caster assembly is arranged at the bottom of the vehicle frame (100), and the caster assembly is used to drive the vehicle frame (100) to move; a front side mounting plate (6) is vertically arranged on the vehicle frame (100), a lead screw (8) is rotatably arranged on the side wall of the front side mounting plate (6), and the lead screw (8) is connected to the grinding wheel mounting mechanism through a thread, a guide rail (20) is arranged beside the lead screw (8), and the grinding wheel mounting mechanism is connected to the guide rail (20), and the guide rail (20) is used to guide the grinding wheel mounting mechanism, and the grinding wheel mounting mechanism is used to clamp the grinding wheel; A horizontal bearing seat mounting plate (12) is arranged on the top of the front mounting plate (6), a rolling bearing seat (32) is arranged on the bearing seat mounting plate (12), the rolling bearing seat (32) is used to be connected with the transmission shaft (21), the first end of the transmission shaft (21) is used to be connected with the hand wheel (1), the second end of the transmission shaft (21) is used to be connected with the lead screw (8) through a bevel gear assembly, the hand wheel (1) is used to drive the transmission shaft (21) to rotate, and then drive the lead screw (8) to rotate through the transmission shaft (21) to drive the grinding wheel mounting mechanism to move up and down.

2. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 1, characterized in that: The grinding wheel mounting mechanism comprises an upper limit piece (7) and a grinding wheel mounting piece (3) for upper and lower splicing, and a locking assembly, the locking assembly being used to lock and fix the upper limit piece (7) and the grinding wheel mounting piece (3) which are butt-jointed and assembled, the grinding wheel mounting piece (3) being provided with a grinding wheel mounting groove (301) for placing a grinding wheel at the top, the upper limit piece (7) being provided with a grinding wheel limit groove for limiting the upper part of the grinding wheel at the bottom, the side wall of the grinding wheel mounting piece (3) being provided with a first semicircular through hole, the side wall of the upper limit piece (7) being provided with a second semicircular through hole, the second semicircular through hole being used to butt-join with the first semicircular through hole to form a limit through hole, the limit through hole being used to support and limit the flange on the grinding wheel.

3. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 2, characterized in that: The locking assembly comprises a buckle (33) and a locking hook, wherein the buckle (33) is arranged on the side wall of the upper limiting member (7), and the locking hook is arranged on the side wall of the grinding wheel mounting member (3), and the buckle (33) is used to cooperate with the locking hook to fix the upper limiting member (7) and the grinding wheel mounting member (3) in a vertically spliced ​​and limited manner.

4. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 2, characterized in that: Buffer pads (5) are provided on the inner wall surfaces of the grinding wheel installation groove (301) and the grinding wheel limiting groove.

5. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 2, characterized in that: A plurality of coaxial limiting grooves (302) are arranged in an annular array on the side wall of the grinding wheel mounting groove (301), and each limiting groove (302) is coaxially arranged along the center of the first semicircular through hole. The grinding wheel mounting mechanism also includes a limiting support member (306), a first locking member (304) and a second locking member (308). A plurality of limiting support members (306) are provided, and each limiting support member (306) is used to be inserted into each limiting groove (302) of the same circle so as to support grinding wheels of different diameters through each limiting support member (306); the first locking member (304) and the second locking member (308) are used to respectively cooperate with the limiting screw holes preset on the two ends of the limiting support member (306) on the outer side of the grinding wheel mounting member (3) so as to limit and fix the limiting support member (306) in the limiting groove (302).

6. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 5, characterized in that: The grinding wheel installation mechanism also includes a limit frame (303) with an arc-shaped structure, a slide groove (307) with an arc-shaped structure is provided in the limit frame (303), a plurality of locking screw holes (305) are provided on the side wall of the limit frame (303) at intervals, and the first locking member (304) is also used to pass through the locking screw hole (305) and the limit screw hole in sequence, thereby connecting and locking the limit support member (306) and the limit frame (303).

7. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 4, characterized in that: A plurality of limiting plates are arranged in an annular array in the grinding wheel limiting groove, and each limiting plate is connected to the top wall of the grinding wheel limiting groove through a compression spring.

8. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 1, characterized in that: A handwheel mounting seat (13) and a handwheel limiting seat (9) are arranged on the bearing seat mounting plate (12); the handwheel limiting seat (9) is arranged in the handwheel mounting seat (13); a plurality of handwheel limiting grooves (91) are arranged in an annular array on the handwheel limiting seat (9); a plurality of handwheel limiting bosses (101) are arranged in an annular array on the handwheel (1); each handwheel limiting boss (101) is used to cooperate with each handwheel limiting groove (91) to rotationally limit the handwheel (1) and the transmission shaft (21).

9. The grinding wheel loading and unloading device for a CNC grinding machine according to claim 1, characterized in that: The bevel gear assembly comprises a first bevel gear (4) and a second bevel gear (19) for cooperating with each other, wherein the first bevel gear (4) is arranged at the second end of the transmission shaft (21), and the second bevel gear (19) is arranged at the top end of the lead screw (8).

10. The grinding wheel loading and unloading device for a CNC grinder according to claim 9, characterized in that: The caster assembly comprises fixed casters (30) and movable casters (31); the fixed casters (30) are arranged in pairs at the front side of the bottom of the frame (100), and the movable casters (31) are arranged in pairs at the rear side of the bottom of the frame (100); a handle base (11) is arranged on the frame (100), and a handle (10) is arranged on the handle base (11).

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