Abrasive belt grinding and polishing device of grinding and polishing equipment

Abstract

The invention discloses an abrasive belt grinding and polishing device of grinding and polishing equipment, which comprises a gantry bracket, a first lifting mechanism and a second lifting mechanism which are connected to the gantry bracket, and a grinding and polishing assembly which is controlled by the first lifting mechanism and the second lifting mechanism to synchronously lift, the first lifting mechanism and the second lifting mechanism are parallel to each other and are vertically arranged; the first lifting mechanism and the second lifting mechanism each comprise a double-track driving unit, and the grinding and polishing assembly is used for grinding or polishing a workpiece. According to the abrasive belt grinding and polishing device of the grinding and polishing equipment, the two parallel and vertically-distributed lifting mechanisms are arranged on the gantry support and used for driving the grinding and polishing tool to ascend and descend, meanwhile, the rotating flanges are further arranged on the lifting mechanisms and used for driving the grinding and polishing assembly to rotate by an angle, and the abrasive belt grinding and polishing device runs stably and can be compatible with workpieces of different shapes; and the universality is high, and the machining cost can be saved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic grinding and polishing equipment, and in particular to an abrasive belt grinding and polishing device of the grinding and polishing equipment. Background Art

[0002] Existing manual grinding and polishing equipment mainly grinds and polishes the surface of the workpiece by automatically rotating abrasive belts or grinding discs. Existing grinding and polishing equipment is generally only designed for workpieces of specific shapes or structures. Therefore, the grinding and polishing equipment is not compatible with a variety of workpieces with different structures, resulting in poor versatility and high cost of the equipment. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a belt grinding and polishing device for grinding and polishing equipment to solve the technical problem of poor versatility of the prior art grinding and polishing equipment.

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

[0005] An embodiment of the present invention provides a belt grinding and polishing device of a grinding and polishing equipment, which includes: a gantry bracket, a first lifting mechanism and a second lifting mechanism connected to the gantry bracket, and a grinding and polishing assembly controlled by the first lifting mechanism and the second lifting mechanism to rise and fall synchronously, the first lifting mechanism and the second lifting mechanism are parallel to each other and vertically arranged; the first lifting mechanism and the second lifting mechanism both include a dual-track drive unit, and the grinding and polishing assembly is used to grind or polish the workpiece.

[0006] The polishing assembly comprises: a connecting seat, and at least one polishing unit connected to the connecting seat; the polishing unit comprises a polishing drive and a polishing belt whose rotation is controlled by the polishing drive.

[0007] Wherein, the grinding and polishing unit also includes: a mounting plate, a driving pulley and a plurality of driven pulleys connected to the top surface of the mounting plate, a tensioning drive component is also provided on the mounting plate, and a tensioning pulley is also provided at the movable end of the tensioning drive component, the grinding and polishing belt is sequentially wound around the driving pulley, the driven pulley and the tensioning pulley, and the tensioning pulley is driven by the tensioning drive component to tension the grinding and polishing belt.

[0008] Among them, a plurality of installation cavities are provided on the connecting seat, the grinding and polishing drive component is sunk in the installation cavity, the output end of the grinding and polishing drive component is connected to the active pulley through a transmission belt, the grinding and polishing drive component and the transmission belt are located on one side of the bottom surface of the mounting plate, and the two ends of the connecting seat are rotatably connected to the first lifting mechanism and the second lifting mechanism respectively.

[0009] Wherein, the gantry support includes: a first column, a second column and a cross arm whose two ends are respectively connected to the top of the first column and the second column; the first lifting mechanism is connected to the first column, and the second lifting mechanism is connected to the second column.

[0010] Wherein, the first lifting mechanism includes: a first driving unit, a first screw rod controlled by the first driving unit to rotate, two first guide rail units arranged in parallel on both sides of the first screw rod, a first connecting member connected to the first screw rod, and a driven flange unit connected to the first connecting member.

[0011] The first guide rail unit includes a longitudinal guide rail and at least two sliders slidably connected to the longitudinal guide rail, the sliders are also connected to the first connecting member, and the longitudinal guide rail is connected to the first column.

[0012] Wherein, the first lifting mechanism further includes an upper foldable protective cover connected to the upper edge of the first connecting member, and a lower foldable protective cover connected to the lower edge of the first connecting member.

[0013] Among them, the second lifting mechanism includes: a second driving unit, a second screw rod controlled by the rotation of the second driving unit, a second guide rail unit arranged in parallel on both sides of the second screw rod, a second connecting member connected to the second screw rod, and an active flange unit connected to the second connecting member, the upper end edge of the second connecting member is also connected to an upper folding protective cover, and the lower end edge of the second connecting member is also connected to a lower folding protective cover, and the upper folding protective cover and the lower folding protective cover are both accordion-type protective covers.

[0014] The active flange unit comprises: a flange drive, a right angle commutator and an active flange, the output shaft of the flange drive is connected to the input end of the right angle commutator, and the output end of the right angle commutator is connected to the active flange.

[0015] The belt grinding and polishing device of the grinding and polishing equipment of the present invention is provided with two mutually parallel and vertically distributed lifting mechanisms on a gantry bracket to drive the lifting and lowering action of the grinding and polishing tool. At the same time, a rotating flange is also provided on the lifting mechanism to drive the rotation angle of the grinding and polishing component. It has stable operation and is compatible with workpieces of different shapes. It has strong versatility and can save processing costs.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the gantry device and the grinding and polishing assembly of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure of the abrasive belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention. Figure 3 It is a schematic diagram of an exploded view of a belt grinding and polishing device of a grinding and polishing equipment according to an embodiment of the present invention.

[0019] Figure 4 It is a partial structural schematic diagram of multiple grinding and polishing components of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the internal structure of the grinding and polishing assembly of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the top structure of the grinding and polishing assembly of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0022] Figure 7 and Figure 8 Schematic diagram of the overall structure of the belt grinding and polishing device of the grinding and polishing equipment according to the embodiment of the present invention from different viewing angles.

[0023] Fig. 9 and Fig.10 It is a schematic structural diagram of different viewing angles of the first lifting mechanism of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0024] Fig.11 and Fig.12 It is a schematic structural diagram of different viewing angles of the second lifting mechanism of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0025] Fig.13 and Fig.14 Schematic diagrams of different viewing angles of the internal structure of the second lifting mechanism of the belt grinding and polishing device of the grinding and polishing equipment according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 100-gantry device, 11-gantry bracket, 12-first lifting mechanism, 13-second lifting mechanism, 111-cross arm, 112-first column, 113-second column, 121-first driving unit, 122-first guide rail unit, 1221-first screw rod, 123-lower folding protective cover, 124-upper folding protective cover, 125-first connecting piece, 14-driven flange unit, 131-second guide rail unit, 132-second connecting piece, 133-lower folding protective cover, 134-upper folding protective cover, 135-second driving unit, 136-second screw rod, 137-upper shaft seat, 138-screw rod seat, 1 39-lower shaft seat, 141-flange connecting seat, 142-driven flange, 15-active flange unit, 151-flange drive, 152-right angle commutator, 153-active flange, 154-drag chain, 1311 / 1312-longitudinal guide rail, 1313 / 1314-slider, 400-grinding and polishing assembly, 41-connecting seat, 42, 43, 44, 45-grinding and polishing unit, 421-mounting plate, 422-grinding and polishing drive, 423-active pulley, 424-driven pulley, 425-grinding and polishing belt, 426-tensioning drive, 427-tensioning pulley, 410-mounting cavity, 411, 412-two ends of the connecting seat. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] The main disadvantages of existing manual grinding and polishing equipment are as follows: limited automation level, most equipment relies on manual operation, low efficiency and poor consistency, high labor cost, process reliance on experience, lack of scientific model support for parameter optimization, and difficulty in achieving precise quality control. Among them, for grinding and polishing equipment, maintaining the stability between various functional units is a key factor in improving the quality of grinding and polishing. Therefore, based on the above requirements, this embodiment provides a belt grinding and polishing device for grinding and polishing equipment.

[0036] See also Figures 1 to 14 The present embodiment discloses a belt grinding and polishing device of a grinding and polishing equipment, which includes a gantry device 100 and a grinding and polishing assembly 400 controlled by the gantry device 100, wherein the gantry device 100 is used to drive the grinding and polishing assembly 400 to move up and down in a vertical direction, and the grinding and polishing assembly 400 is used to drive the abrasive belt to perform surface polishing on a workpiece.

[0037] See also Figures 7 to 14 The gantry device 100 includes: a gantry support 11 and a first lifting mechanism 12 and a second lifting mechanism 13 connected to the gantry support 11, wherein the first lifting mechanism 12 and the second lifting mechanism 13 are parallel to each other and vertically arranged; the first lifting mechanism 12 and the second lifting mechanism 13 both include a double-track drive unit. The lifting mechanism of the belt grinding and polishing device 100 of the grinding and polishing equipment of this embodiment adopts a double-guide rail drive unit, which greatly improves the stability of the grinding and polishing tool operation and the accuracy of the lifting action, which is beneficial to the grinding and polishing quality and effect of the automated grinding and polishing equipment.

[0038] like Figure 8 As shown, the gantry support 11 includes: a first column 112, a second column 113, and a cross arm 111 whose two ends are respectively connected to the top of the first column 112 and the second column 113; the first lifting mechanism 12 is connected to the first column 112, and the second lifting mechanism 13 is connected to the second column 113. The first column 112, the second column 113 and the cross arm 111 together form an inverted U-shaped support frame mechanism, that is, a roughly gantry structure.

[0039] Please refer again Fig. 9 and Fig.10 The first lifting mechanism 12 includes: a first driving unit 121, a first screw rod 1221 controlled by the rotation of the first driving unit 121, two first guide rail units 122 arranged in parallel on both sides of the first screw rod 1221, a first connecting member 125 connected to the first screw rod 1221, and a driven flange unit 14 connected to the first connecting member 125.

[0040] The first guide rail unit 122 includes a longitudinal guide rail and at least two sliders slidably connected to the longitudinal guide rail, the sliders are also connected to the first connecting member 125, and the longitudinal guide rail is connected to the first column 112. The sliders are buckled with the longitudinal guide rail in a trapezoidal opening.

[0041] The driven flange unit 14 includes: a flange connection seat 141 connected to the first connection member 125 and a flange plate 142 connected to the flange connection seat 141. Specifically, the axial direction of the flange plate 142 is perpendicular to the lifting direction of the first lifting mechanism 12, and the plate surface of the flange plate 142 is horizontally arranged toward the second lifting mechanism 13 side.

[0042] In this embodiment, the first driving unit 122 is a rotation driving module such as a servo motor.

[0043] Since the belt grinding and polishing device 100 of the grinding and polishing equipment is used for the lifting and rotating actions of the grinding and polishing tool, there must be debris and other particles generated by grinding and polishing during the grinding and polishing of the workpiece. In order to improve the smooth operation and service life of the first lifting mechanism 12 and the second lifting mechanism 13, the first lifting mechanism 12 also includes an upper folding protective cover 124 connected to the upper edge of the first connecting member 125, and a lower folding protective cover 123 connected to the lower edge of the first connecting member 125. Specifically, the upper folding protective cover 124 and the lower folding protective cover 123 are both accordion-type protective covers. The driven flange unit 14 follows the first connecting member 125, and is controlled by the first driving unit 121 to lift and lower along the first guide rail unit 122, and the top edge of the upper folding protective cover 124 is fixedly connected to the top of the first column 112, and the lower edge of the lower folding protective cover 123 is fixedly connected to the bottom of the first column 112. During the synchronous lifting and lowering process of the first connecting member 125 and the driven flange unit 14, the upper foldable protective cover 124 and the lower foldable protective cover 123 both follow the first connecting member 125 to extend and retract in the vertical direction, thereby keeping the internal structure of the first lifting mechanism 12 always inside the variable sealing protective cover composed of the first connecting member 125, the upper foldable protective cover 124 and the lower foldable protective cover 123, thereby preventing external grinding and polishing debris from entering and damaging the track, affecting its smoothness and service life.

[0044] Please refer again Figures 11 to 14 The second lifting mechanism 13 includes: a second driving unit 135, a second screw rod 136 controlled by the rotation of the second driving unit 135, a second guide rail unit 131 arranged in parallel on both sides of the second screw rod 136, a second connecting member 132 connected to the second screw rod 136, and an active flange unit 15 connected to the second connecting member 132.

[0045] The upper edge of the second connecting member 132 is further connected to an upper foldable protective cover 134 , and the lower edge of the second connecting member 132 is further connected to a lower foldable protective cover 133 .

[0046] In this embodiment, the upper foldable protective cover 134 and the lower foldable protective cover 133 are both accordion-type protective covers. The functions of the upper foldable protective cover 134 and the lower foldable protective cover 133 are the same as those of the first lifting mechanism 12.

[0047] The active flange unit 15 includes: a flange driver 151, a right-angle commutator 152 and an active flange 153. The output shaft of the flange driver 151 is connected to the input end of the right-angle commutator 152, and the output end of the right-angle commutator 152 is connected to the active flange 153. The flange driver 151 is vertically arranged on the second column 113, and the rotation direction of the active flange 153 is horizontal, so the right-angle commutator 152 is used for transmission commutation between the two to realize the right-angle commutation of the power of the flange driver 151. The second connecting member 132 is also provided with a drag chain 154, which is used to set the wire electrically connected to the servo motor.

[0048] Please refer again Fig.13 and Fig.14 The second guide rail unit 131 includes: a longitudinal guide rail 1311 (1312) and at least two sliders 1313 (1314) slidably connected to the longitudinal guide rail 1311, the slider 1313 is also connected to the second connecting member 132, and the longitudinal guide rail 1311 is connected to the second column 113.

[0049] The longitudinal guide rails 1311 and 1312 are fixedly connected to the second column 113 and are parallelly distributed on both sides of the second screw rod 126. The second screw rod 136 is also provided with a screw rod seat 138, which is also connected to the second connecting member 132, so as to convert the rotational power of the second screw rod 136 into vertical lifting power. The second screw rod 136 is also provided with an upper shaft seat 137 near the upper end and a lower shaft seat 139 near the lower end, and the second screw rod 136 is rotatably plugged into the upper shaft seat 137 and the lower shaft seat 139. The second drive unit 135, the second guide rail unit 131, the second screw rod 136, the screw rod seat 138, the upper shaft seat 137, and the lower shaft seat 139 form a screw drive module.

[0050] In this embodiment, the second driving unit 135 and the flange driving member 151 are both servo motors.

[0051] Please refer again Figure 7The first lifting mechanism 12 and the second lifting mechanism 13 connected to the gantry bracket 11 are used to drive the driven flange unit 14 and the active flange unit 15 to synchronously lift and lower, respectively. The driven flange unit 14 and the active flange unit 15 are arranged opposite to each other, and a grinding and polishing tool, such as a rough grinding tool and a fine grinding tool, is arranged between the two. The two ends of the grinding and polishing tool are connected to the driven flange 142 and the active flange 153 by screws. When the angle of the grinding and polishing tool needs to be adjusted, the flange driving unit 151 is controlled to start, and the active flange 153 is driven to rotate a certain angle through the right-angle commutator 152, so as to achieve the angle adjustment of the grinding and polishing tool.

[0052] The gantry device 100 of this embodiment is provided with two parallel and vertically distributed lifting mechanisms on the gantry support. The first lifting mechanism adopts double tracks and at least two sliders slidably connected to the double tracks, thereby improving the lifting stability of the first lifting mechanism. Similarly, the second lifting mechanism also adopts a mechanism of double tracks and at least two sliders, thereby improving the lifting stability on this side. At the same time, the grinding and polishing tool lifting execution device composed of the first lifting mechanism and the second lifting mechanism further improves the stability of the overall lifting operation, thereby forming a multi-level stable design to improve stability, which is used to drive the lifting action of the grinding and polishing tool. At the same time, a rotating flange is also provided on the lifting mechanism to cooperate with the lifting mechanism to realize the rotation operation of the grinding and polishing tool. The gantry device has a stable and reliable structure and can realize the precise lifting and rotating action of the grinding and polishing tool.

[0053] Please refer again Figures 1 to 6 The polishing assembly 400 includes: a connecting seat 41, and at least one polishing unit 42 connected to the connecting seat 41; the polishing unit 42 includes a polishing driving member 422 and a polishing belt 425 controlled by the polishing driving member 422 to rotate.

[0054] In this embodiment, the grinding and polishing units are provided in four groups, wherein the grinding and polishing units 42 and 43 are one group, which are arranged on the same side of the connecting seat 41. The grinding and polishing units 44 and 45 are the second group, which are both arranged on the other side of the connecting seat 41. The main structures of the grinding and polishing units 42, 43, 44 and 45 are the same, and the only difference is that the mesh number of the grinding and polishing belt is different, that is, the particle size is different.

[0055] Specifically, taking the grinding and polishing unit 42 as an example, the grinding and polishing unit 42 also includes: a mounting plate 421, a driving pulley 423 connected to the top surface of the mounting plate 421, and a plurality of driven pulleys 424. The mounting plate 421 is also provided with a tensioning drive 426, and the movable end of the tensioning drive 426 is also provided with a tensioning pulley 427. The grinding and polishing belt 425 is sequentially wound around the driving pulley 423, the driven pulley 424 and the tensioning pulley 427, and the tensioning drive 426 drives the tensioning pulley 427 to tension the grinding and polishing belt 425.

[0056] In this embodiment, the grinding and polishing belt 425 is tensioned to form a substantially U-shaped opening, and the outer protruding portion thereof is the grinding and polishing position in contact with the workpiece.

[0057] like Figure 3 As shown, the connecting seat 41 is provided with a plurality of mounting cavities 410, the grinding and polishing drive member 422 is sunk in the mounting cavity 410, the output end of the grinding and polishing drive member 422 is connected to the active pulley 423 through a transmission belt, the grinding and polishing drive member 422 and the transmission belt are located on one side of the bottom surface of the mounting plate 421, and the two ends 411 and 412 of the connecting seat 41 are rotatably connected to the flange 142 of the first lifting mechanism 12 and the active flange 153 of the second lifting mechanism 13 respectively.

[0058] The belt grinding and polishing device of the grinding and polishing equipment of this embodiment is provided with two mutually parallel and vertically distributed lifting mechanisms on the gantry bracket to drive the lifting and lowering action of the grinding and polishing tool. At the same time, a rotating flange is also provided on the lifting mechanism to drive the rotation angle of the grinding and polishing component. It has stable operation and is compatible with workpieces of different shapes. It has strong versatility and can save processing costs.

[0059] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A belt grinding and polishing device for a grinding and polishing equipment, characterized in that: include: A gantry support, a first lifting mechanism and a second lifting mechanism connected to the gantry support, and a grinding and polishing assembly controlled by the first lifting mechanism and the second lifting mechanism for synchronous lifting, wherein the first lifting mechanism and the second lifting mechanism are parallel to each other and vertically arranged; the first lifting mechanism and the second lifting mechanism both include a dual-track drive unit, and the grinding and polishing assembly is used for grinding or polishing a workpiece.

2. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 1, characterized in that: The grinding and polishing assembly comprises: a connecting seat and at least one grinding and polishing unit connected to the connecting seat; the grinding and polishing unit comprises a grinding and polishing driving member and a grinding and polishing belt whose rotation is controlled by the grinding and polishing driving member.

3. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 2, characterized in that: The grinding and polishing unit also includes: a mounting plate, a driving pulley and a plurality of driven pulleys connected to the top surface of the mounting plate, a tensioning drive component is also provided on the mounting plate, and a tensioning pulley is also provided on the movable end of the tensioning drive component, the grinding and polishing belt is sequentially wound around the driving pulley, the driven pulley and the tensioning pulley, and the tensioning pulley is driven by the tensioning drive component to tension the grinding and polishing belt.

4. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 3, characterized in that: The connecting seat is provided with a plurality of mounting cavities, the grinding and polishing drive member is sunk in the mounting cavities, the output end of the grinding and polishing drive member is connected to the active pulley through a transmission belt, the grinding and polishing drive member and the transmission belt are located on one side of the bottom surface of the mounting plate, and the two ends of the connecting seat are rotatably connected to the first lifting mechanism and the second lifting mechanism respectively.

5. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to any one of claims 1 to 4, characterized in that: The gantry support includes: a first column, a second column, and a cross arm whose two ends are respectively connected to the top of the first column and the second column; the first lifting mechanism is connected to the first column, and the second lifting mechanism is connected to the second column.

6. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 5, characterized in that: The first lifting mechanism includes: a first driving unit, a first screw rod controlled by the first driving unit to rotate, two first guide rail units arranged in parallel on both sides of the first screw rod, a first connecting member connected to the first screw rod, and a driven flange unit connected to the first connecting member.

7. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 6, characterized in that: The first guide rail unit includes a longitudinal guide rail and at least two sliders slidably connected to the longitudinal guide rail, the sliders are also connected to the first connecting member, and the longitudinal guide rail is connected to the first column.

8. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 7, characterized in that: The first lifting mechanism further includes an upper foldable protective cover connected to the upper edge of the first connecting member, and a lower foldable protective cover connected to the lower edge of the first connecting member.

9. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 8, characterized in that: The second lifting mechanism includes: a second driving unit, a second screw rod controlled by the rotation of the second driving unit, a second guide rail unit arranged in parallel on both sides of the second screw rod, a second connecting member connected to the second screw rod, and an active flange unit connected to the second connecting member, the upper end edge of the second connecting member is also connected to an upper folding protective cover, and the lower end edge of the second connecting member is also connected to a lower folding protective cover, and the upper folding protective cover and the lower folding protective cover are both accordion-type protective covers.

10. The abrasive belt grinding and polishing device of the grinding and polishing equipment according to claim 9, characterized in that: The active flange unit comprises: a flange drive, a right angle commutator and an active flange, wherein the output shaft of the flange drive is connected to the input end of the right angle commutator, and the output end of the right angle commutator is connected to the active flange.

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