CN109571181B

CN109571181B - Sanding device

Info

Publication number: CN109571181B
Application number: CN201910082891.2A
Authority: CN
Inventors: 李长明; 乐奎; 吴丰礼
Original assignee: Guangdong Topstar Technology Co Ltd
Current assignee: Guangdong Topstar Technology Co Ltd
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2024-05-28
Anticipated expiration: 2039-01-24
Also published as: CN109571181A

Abstract

The invention belongs to the technical field of production and manufacturing of mobile phone shells, and discloses a sanding device. This sanding device includes: the bearing mechanism is used for bearing the workpiece and can drive the workpiece to rotate; the sanding mechanism is positioned above the bearing mechanism and comprises a sanding driving source and a sanding assembly connected to the output end of the sanding driving source, and the sanding driving source can drive the sanding assembly to rotate and is used for sanding a workpiece; the moving mechanism is respectively connected with the bearing mechanism and the sanding mechanism, the bearing mechanism can move along the Y direction under the driving of the moving mechanism, the sanding mechanism can move along the X direction and the Z direction, and the X direction, the Y direction and the Z direction are mutually perpendicular. The sanding device has three linear degrees of freedom and two rotational degrees of freedom, can realize sanding of various workpieces, is high in universality, solves the problem of high sanding difficulty of arc-shaped workpieces, and accordingly improves production efficiency and sanding precision.

Description

Sanding device

Technical Field

The invention relates to the technical field of production and manufacturing of mobile phone shells, in particular to a sanding device.

Background

Currently, metal mobile phone shells are usually selected as main mobile phones in the market, and due to limitations of molds and injection molding equipment and imperfections in molding process, produced products have phenomena of burrs and uneven surfaces, and sand blasting is needed.

The existing sanding treatment mainly adopts two modes of manual sanding and a polishing device. The manual sanding is performed by operators through sand paper to improve the appearance of the product and reduce the number of defective products, but the mode is time-consuming and labor-consuming, has high labor intensity and low production efficiency, and particularly in the long-time sanding process, as the hands are directly contacted with the product and the sand paper, the fingers are easily damaged such as blisters, abrasion and the like, and the health and safety of the human body are affected; the polishing device is characterized in that the motor is used for driving the polishing head to rotate to achieve the purposes of polishing and sanding, and the degree of freedom is less, so that the polishing device has single limitation, the material of the mobile phone shell is stainless steel metal and is of a streamline arc structure, the polishing and sanding difficulty is high, and the problem of lower precision exists. In addition, for different product needs, sanding with different grades of thickness can be performed only by replacing the sanding heads with different thickness degrees, and the production is discontinuous and has longer production period.

Disclosure of Invention

The invention aims to provide a sanding device which has multiple degrees of freedom and improves production efficiency and sanding precision.

To achieve the purpose, the invention adopts the following technical scheme:

A sanding apparatus comprising:

the bearing mechanism is used for bearing a workpiece and can drive the workpiece to rotate;

The sanding mechanism is positioned above the bearing mechanism and comprises a sanding driving source and a sanding assembly connected to the output end of the sanding driving source, and the sanding driving source can drive the sanding assembly to rotate and is used for sanding the workpiece;

The moving mechanism is respectively connected with the bearing mechanism and the sanding mechanism, the bearing mechanism can move along the Y direction under the driving of the moving mechanism, the sanding mechanism can move along the X direction and the Z direction, and the X direction, the Y direction and the Z direction are mutually perpendicular.

Preferably, the bearing mechanism comprises an offset assembly, a rotating assembly connected to the offset assembly and a carrier for bearing the workpiece, the offset assembly can drive the rotating assembly and the carrier to move along the X direction, and the rotating assembly is connected to the carrier and can drive the carrier to rotate.

Preferably, the offset assembly includes:

An offset driving source;

An eccentric shaft connected to the output end of the offset driving source;

A table connected to the rotating assembly;

and one end of the connecting rod is sleeved on the eccentric shaft, the other end of the connecting rod is connected to the workbench, and the offset driving source can drive the eccentric shaft to rotate and drive the connecting rod to rotate and the workbench to move.

Preferably, the rotating assembly includes:

A rotation driving source;

One end of the speed reducer is connected with the output end of the rotary driving source, the other end of the speed reducer is connected with the carrier, and the rotary driving source drives the carrier to rotate through the speed reducer.

Preferably, the carrying mechanism further comprises:

a driving gear connected to an output end of the rotation driving source;

A driven gear connected to the decelerator and engaged with the driving gear;

and the vacuum generator is arranged in the driven gear, the speed reducer and the carrier in a penetrating way and is used for adsorbing the workpiece on the carrier.

Preferably, the sanding assembly comprises a connecting piece connected to the output end of the sanding driving source and a plurality of sanding components, wherein one sanding component is connected to the side face of each connecting piece, and the sanding components are respectively fixed with different types of sand paper.

Preferably, the sanding member includes:

a vibration driving source;

the grinding head is connected with one side of the grinding head in the vibration driving source, the other side of the grinding head is detachably connected with the abrasive paper through the magic tape, and the vibration driving source can drive the abrasive paper to vibrate through the grinding head.

Preferably, the polishing device further comprises a polishing mechanism, wherein the polishing mechanism and the sanding mechanism are alternatively connected to the moving mechanism, and the polishing mechanism is used for polishing the workpiece.

Preferably, the polishing mechanism comprises a polishing driving source and a plurality of polishing wheels of different types, wherein the output end of the polishing driving source is connected with the polishing wheels and can drive the polishing wheels to rotate.

Preferably, the polishing mechanism further comprises an adjusting assembly, the adjusting assembly comprises an adjusting driving source and a connecting seat, one side of the connecting seat is connected with the adjusting driving source, and the other side of the connecting seat is connected with the polishing driving source.

The invention has the beneficial effects that:

The invention provides a sanding device, when a sanding mechanism carries out sanding on a workpiece placed on a bearing mechanism, the bearing mechanism can be driven to move along a Y direction by arranging a moving mechanism, and the sanding mechanism can move along an X direction and a Z direction, so that the sanding device has three linear degrees of freedom, and the positions of the bearing mechanism and the sanding mechanism are timely adjusted according to actual needs so as to improve the surface appearance of the workpiece; the bearing mechanism can drive the workpiece to rotate, and the sanding driving source can drive the sanding assembly to rotate, so that the bearing mechanism has two rotational degrees of freedom and is used for sanding the whole surface of the workpiece. Therefore, the sanding device has three linear degrees of freedom and two rotational degrees of freedom, can realize sanding of various workpieces, has strong universality, and solves the problem of high sanding difficulty of arc-shaped workpieces, thereby improving the production efficiency and sanding precision.

Drawings

FIG. 1 is a schematic diagram of a sanding apparatus of the present invention;

FIG. 2 is a schematic view of the structure of the abatement base and boot of FIG. 1;

FIG. 3 is a schematic view of the moving mechanism of the sanding apparatus of the present invention;

FIG. 4 is a schematic view of the structure of the bearing mechanism in the sanding apparatus of the present invention;

FIG. 5 is a schematic view of the structure of the rotary assembly of the sanding apparatus of the present invention;

FIG. 6 is a schematic structural view of a sanding mechanism in a sanding apparatus of the present invention;

fig. 7 is a schematic structural view of a polishing mechanism in the sanding apparatus of the present invention.

In the figure:

1. a carrying mechanism; 2. a sanding mechanism; 3. a moving mechanism; 4. a polishing mechanism; 5. a base station; 6. a protective cover;

11. an offset assembly; 12. a rotating assembly; 13. a carrier;

111. An offset driving source; 112. an eccentric shaft; 113. a work table; 114. a connecting rod; 115. a substrate; 116. an X-direction guide rail; 117. an X-direction sliding block;

121. A rotation driving source; 122. a speed reducer; 123. a drive gear; 124. a driven gear;

21. Sanding driving source; 22. a connecting piece; 23. a sanding component; 24. a through hole;

231. a vibration driving source; 232. polishing head;

31. An X-direction driving assembly; 32. a Y-direction drive assembly; 33. a Z-direction drive assembly;

311. An X-direction driving source; 312. an X-direction platform; 313. an X-direction driving wheel; 314. an X-direction conveyor belt; 315. x-direction driven wheel;

321. A Y-direction driving source; 322. a Y-direction platform;

331. A Z-direction driving source; 332. a Z-direction platform; 333. a Z-direction driving wheel; 334. a Z-direction conveyor belt; 335. z-direction driven wheels;

41. A polishing drive source; 42. a polishing wheel; 43. an adjustment assembly;

431. Adjusting a driving source; 432. and a connecting seat.

Detailed Description

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a sanding apparatus according to the present invention, and fig. 2 is a schematic structural view of a base station and a protective cover of fig. 1. The embodiment provides a sanding device for sanding a workpiece, the workpiece is specifically a mobile phone shell, as shown in fig. 1-2, the sanding device comprises a base station 5, a protective cover 6, a bearing mechanism 1, a sanding mechanism 2 and a moving mechanism 3, wherein the bearing mechanism 1, the sanding mechanism 2 and the moving mechanism 3 are all arranged on the base station 5 and are covered in the protective cover 6. The bearing mechanism 1 is used for bearing and fixing the workpiece, and because the workpiece is of a streamline arc structure, the bearing mechanism 1 can drive the workpiece to rotate so as to sand the circumference of the workpiece and prevent the workpiece from generating processing dead angles. The sanding mechanism 2 is located above the bearing mechanism 1, and the sanding mechanism 2 specifically comprises a sanding driving source 21 and a sanding assembly, wherein the output end of the sanding driving source 21 is connected with sanding and can drive the sanding assembly to rotate, so that the surface of a workpiece is sanded, and the purpose of improving the appearance of the workpiece is achieved by removing positioning burrs, pits and the like on the surface of the workpiece. The moving mechanism 3 is respectively connected with the bearing mechanism 1 and the sanding mechanism 2, the moving mechanism 3 is used for timely adjusting the positions of the bearing mechanism 1 and the sanding mechanism 2, the bearing mechanism 1 can move along the Y direction under the driving of the moving mechanism 3, the sanding mechanism 2 can move along the X direction and the Z direction, and the X direction, the Y direction and the Z direction are mutually perpendicular.

The embodiment provides a sanding device, when a sanding mechanism 2 carries out sanding on a workpiece placed on a bearing mechanism 1, the bearing mechanism 1 can be driven to move along a Y direction by arranging a moving mechanism 3, and the sanding mechanism 2 can move along an X direction and a Z direction, so that the sanding device has three linear degrees of freedom, and the positions of the bearing mechanism 1 and the sanding mechanism 2 are timely adjusted according to actual needs so as to improve the surface appearance of the workpiece; the bearing mechanism 1 can drive the workpiece to rotate, and the sanding driving source 21 can drive the sanding assembly to rotate, so that the sanding assembly has two rotational degrees of freedom and is used for sanding the whole surface of the workpiece. Therefore, the sanding device has three linear degrees of freedom and two rotational degrees of freedom, can realize sanding of various workpieces, has strong universality, and solves the problem of high sanding difficulty of arc-shaped workpieces, thereby improving the production efficiency and sanding precision.

In order to realize accurate automatic control, the sanding device further comprises a control mechanism, wherein the control mechanism is respectively and electrically connected with the bearing mechanism 1, the sanding mechanism 2 and the moving mechanism 3, and the cooperation among the bearing mechanism 1, the sanding mechanism 2 and the moving mechanism 3 is realized according to actual needs.

Fig. 3 is a schematic structural diagram of a moving mechanism in the sanding apparatus according to the present invention, as shown in fig. 2-3, the moving mechanism 3 includes an X-direction driving component 31, a Y-direction driving component 32, and a Z-direction driving component 33, the carrying mechanism 1 is disposed on the Y-direction driving component 32, so that the Y-direction driving component 32 can drive the carrying mechanism 1 to move along the Y-direction, and the Z-direction driving component 33 is disposed on the X-direction driving component 31, and the sanding mechanism 2 is disposed on the Z-direction driving component 33, so that the X-direction driving component 31 can drive the Z-direction driving component 33 and the sanding mechanism 2 can move along the X-direction, and the Z-direction driving component 33 can drive the sanding mechanism 2 to move along the Z-direction.

Further, as shown in fig. 3, the Y-driving assembly 32 includes a Y-driving source 321 and a Y-stage 322 connected to an output end of the Y-driving source 321, where the Y-driving source 321 is specifically a Y-driving motor, and the carrying mechanism 1 is disposed on the Y-stage 322, so that the Y-driving assembly 32 can drive the Y-stage 322 and drive the carrying mechanism 1 to move along the Y-direction.

Further, as shown in fig. 3, the X-direction driving assembly 31 includes an X-direction driving source 311 and an X-direction stage 312 connected to an output end of the X-direction driving source 311, the X-direction driving source 311 is specifically an X-direction driving motor, and the Z-direction driving assembly 33 includes a Z-direction driving source 331 and a Z-direction stage 332 connected to the Z-direction driving source 331, the Z-direction driving source 331 is specifically a Z-direction driving motor. The Z-direction driving assembly 33 is arranged on the X-direction platform 312, the sanding mechanism 2 is arranged on the Z-direction platform 332, an X-direction driving wheel 313 is arranged at the output end of the X-direction driving source 311, an X-direction driven wheel 315 is arranged at one end of the X-direction lead screw nut mechanism, and an X-direction conveying belt 314 is wound and tensioned between the X-direction driving wheel 313 and the X-direction driven wheel 315, so that the X-direction driving source 311 drives the X-direction driving wheel 313 to rotate and drives the X-direction driven wheel 315 and the X-direction lead screw nut mechanism to rotate through the X-direction conveying belt 314, thereby driving the X-direction platform 312 and driving the Z-direction driving assembly 33 and the sanding mechanism 2 to move along the X-direction. Similarly, the Z-direction driving source 331 drives the Z-direction driving wheel 333 to rotate and drives the Z-direction driven wheel 335 to rotate and the Z-direction screw nut mechanism to rotate through the Z-direction conveying belt 334, so as to drive the Z-direction platform 332 and drive the sanding mechanism 2 to move along the Z-direction.

Because the bearing mechanism 1 is only connected with the Y-direction driving component 32, the Y-direction driving component 32 can drive the Y-direction platform 322 and drive the bearing mechanism 1 to move along the Y-direction, in order to realize that the bearing mechanism 1 can not only realize the rotation of a workpiece but also realize the movement in the X-direction, fig. 4 is a schematic structural diagram of the bearing mechanism in the sanding device of the invention. As shown in fig. 4, the carrying mechanism 1 includes an offset assembly 11, a rotating assembly 12 and a carrier 13, the carrier 13 is used for carrying a workpiece, the rotating assembly 12 is disposed on the offset assembly 11, the offset assembly 11 can drive the rotating assembly 12 and the carrier 13 to move along the X direction, and the rotating assembly 12 is connected to the carrier 13 and can drive the carrier 13 to rotate, thereby more precisely controlling the direction of the workpiece.

Further, the offset assembly 11 includes a base plate 115, an offset driving source 111, an eccentric shaft 112, a workbench 113 and a connecting rod 114, the offset driving source 111 is specifically an offset motor, the offset driving source 111 is fixedly disposed on the base plate 115, an output end of the offset driving source 111 is connected to the eccentric shaft 112, the workbench 113 is a bearing structure of the rotating assembly 12, and the rotating assembly 12 is disposed on the workbench 113. As shown in fig. 4, in order to realize the transmission connection between the eccentric shaft 112 and the table 113, one end of the connecting rod 114 is sleeved on the eccentric shaft 112, the other end is connected to the table 113, and the offset driving source 111 can drive the eccentric shaft 112 to rotate. In order to achieve the guiding effect for the table 113, an X-direction guide rail 116 is provided on the base plate 115, an X-direction slider 117 is provided at the bottom of the table 113 corresponding to the X-direction guide rail 116, and the X-direction slider 117 is slidably provided along the X-direction guide rail 116. According to the principle of the crank slide block mechanism, the offset shaft corresponds to a crank, the connecting rod 114 corresponds to a connecting rod, and the workbench 113 corresponds to a slide block, so that the eccentric shaft 112 drives the connecting rod 114 to rotate, and the rotation of the connecting rod 114 can drive the workbench 113 to move along the X-direction guide rail 116 in the X-direction.

Fig. 5 is a schematic structural diagram of a rotating assembly in the sanding device according to the present invention, in order to realize rotation of the carrier 13, as shown in fig. 4-5, the rotating assembly 12 specifically includes a rotating driving source 121 and a speed reducer 122, the rotating driving source 121 specifically is a rotating servo motor, the speed reducer 122 specifically is a hollow harmonic speed reducer, and the harmonic speed reducer can effectively prevent backlash and improve rotation precision. One end of the speed reducer 122 is connected to the output end of the rotary driving source 121, the other end is connected to the carrier 13, and the rotary driving source 121 drives the carrier 13 to rotate through the speed reducer 122. For the rotation of the carrier 13, the servo motor and the speed reducer 122 are combined, the servo motor can rotate positively and negatively, the speed reducer 122 has the functions of reducing the rotating speed and increasing the torque, and can bear workpieces with larger mass, so that the carrier 13 has the advantages of high rigidity and good precision, and the jump error of the carrier 13 can be maintained within the range of less than or equal to 0.03 mm.

Since the carrier 13 can only carry the workpiece, in order to fix the workpiece on the carrier 13, a vacuum generator may be used to adsorb the workpiece on the carrier 13, but the vacuum generator needs to introduce an air source into the bottom of the carrier 13 through an air pipe, if the decelerator 122 is directly connected with the output end of the rotation driving source 121, the installation space of the rotation driving source 121 may have difficulty, and more importantly, as the rotation driving source 121 rotates, the air pipe may be wound, which affects the normal use and the service life. In order to solve the above-mentioned problem, as shown in fig. 5, the carrying mechanism 1 further includes a driving gear 123, a driven gear 124 and a vacuum generator, wherein the driving gear 123 is connected to the output end of the rotary driving source 121, the driven gear 124 is connected to the speed reducer 122 and is meshed with the driving gear 123, so that the rotary driving source 121 drives the driving gear 123 to rotate, and the driving gear 123 and the driven gear 124 are meshed to drive the speed reducer 122 to synchronously rotate, thereby realizing the rotation of the carrier 13. The air pipe of the vacuum generator penetrates through the center holes of the driven gear 124 and the speed reducer 122 and is communicated with the bottom of the carrier 13, so that the workpiece is adsorbed on the carrier 13. With this arrangement, the work is prevented from being displaced to affect the sanding accuracy, and the positions of the air pipe and the rotary drive source 121 are avoided by the meshing of the driving gear 123 and the driven gear 124.

Fig. 6 is a schematic structural diagram of a sanding mechanism in a sanding device according to the present invention, as shown in fig. 6, in order to realize sanding processes of different grades in thickness for different product needs, the sanding assembly includes a connecting piece 22 connected to an output end of a sanding driving source 21 and a plurality of sanding members 23, and the sanding driving source 21 is specifically a sanding driving motor, and the sanding driving source 21 drives the sanding members 23 to rotate through the connecting piece 22 for sanding a surface of a workpiece. In this embodiment, the number of the sanding members 23 is three, a space may be divided into 120 degrees, and a total of three sections may be divided, and coarse, middle and fine sanding is performed respectively, so that the connectors 22 have a mitsubishi structure, the number of sides of the connectors 22 is the same as the number of the sanding members 23, one sanding member 23 is connected to the side of each connector 22, and the three sanding members 23 fix three different types of sandpaper of coarse, middle and fine respectively.

When coarse sanding is required, the first sanding component 23 is provided with coarse sand paper, and the sanding driving source 21 drives the first sanding component 23 to repeatedly rotate by 120 degrees in a first section through the connecting piece 22, so as to perform coarse sanding on a workpiece; when the intermediate sanding is required, the second sanding member 23 is provided with intermediate sandpaper, and the sanding driving source 21 drives the second sanding member 23 to repeatedly rotate by 120 ° in a second section, that is, the section, through the connecting piece 22, for intermediate sanding of the workpiece. The fine sanding process is similar to the coarse sanding process and the middle sanding process, and the three intervals are passed, so that the detailed description is omitted. Through setting up this kind of mode, after carrying out coarse sanding in first interval, can directly carry out the well sanding in second interval, can carry out the fine sanding in third interval after well sanding, not only can select the degree grade of sanding, more importantly, compare with prior art, need not to change abrasive paper repeatedly, production is continuous uninterrupted, has saved production time, has improved production efficiency.

In order to further improve sanding quality, as shown in fig. 6, the sanding component 23 includes a vibration driving source 231 and a sanding head 232, the vibration driving source 231 is specifically a vibration cylinder, one side of the sanding head 232 is connected to the output end of the vibration driving source 231, and the other side of the sanding head 232 is detachably connected to the abrasive paper through a magic tape, so that quick replacement of various types of abrasive paper can be realized by adopting the magic tape. The vibration driving source 231 can drive the sand paper to vibrate through the polishing head 232, the energy-saving efficient pneumatic polishing head 232 is adopted, the air pressure is adjustable, different vibration frequencies are realized, and the sand polishing effect is improved.

In order to position the sanding initial position of the workpiece, the sanding mechanism 2 can perform profiling, a through hole 24 is arranged along the axial direction of the connecting piece 22, and a calibration piece is penetrated in the through hole 24, is a bar with a cylindrical structure, and exceeds one end of the connecting piece 22 to be used for abutting against the surface of the workpiece. Because the moving mechanism 3 is respectively connected with the bearing mechanism 1 and the sanding mechanism 2, a space XYZ coordinate system can be determined, and the control mechanism can calculate the position of a workpiece according to the distance between the axis of the calibration piece and the end face of the polishing head 232, so that the moving track of the moving mechanism 3, the sanding mechanism 2 and the bearing mechanism 1 is controlled, and the automatic adjustment of the processing sanding point position and the single feeding amount is realized.

Fig. 7 is a schematic structural view of a polishing mechanism in the sanding apparatus of the present invention. In order to further improve the surface quality of the workpiece, as shown in fig. 7, the sanding device further comprises a polishing mechanism 4, wherein the polishing mechanism 4 and the sanding mechanism 2 are alternatively detachably connected to the moving mechanism 3, and the polishing mechanism 4 is used for polishing the workpiece after sanding is completed. Specifically, the polishing mechanism 4 and the sanding mechanism 2 are detachably connected to the Z-direction moving platform by bolts.

Further, as shown in fig. 7, the polishing mechanism 4 includes a polishing driving source 41 and polishing wheels 42, the polishing driving source 41 is specifically a polishing driving motor, the polishing wheels 42 are a plurality of polishing wheels 42 of different types, and in this embodiment, the number of polishing wheels 42 is specifically three, and polishing of three grades of coarse, medium and fine can be performed. One of the polishing wheels 42 located at the lowest position can be polished by an end face or a side face, the other two polishing wheels 42 can be polished by a side face, and in order to ensure the polishing effect, the two polishing wheels 42 are circumferentially provided with a plurality of imitation grooves, and the cambered surfaces of the imitation grooves are slightly larger than those of the workpiece so as to perform rough, middle and fine circle profiling on the workpiece. And after rough polishing, the polishing is directly performed in middle and fine polishing, so that labor and production time are saved. Three polishing wheels 42 are installed at the same time up and down at the output end of the polishing driving source 41, the polishing driving source 41 can drive the polishing wheels 42 to rotate, and polishing liquid is sprayed to the workpiece through a pipeline so as to polish the workpiece. Specifically, the output end of the polishing driving source 41 can be detachably connected with the polishing wheel 42 by adopting a bolt or clamping manner, so that the consumable materials of the polishing wheels of various types can be replaced quickly.

Wherein the pressure of the output shaft of the polishing drive source 41 can display the load factor on the display screen. According to the main load rate or the product production effect, the single feeding quantity value in the program can be adjusted, so that the three-dimensional polishing pressure of the workpieces in the same batch is kept equal. In order to further guarantee the quality of polishing, be provided with the flowmeter on the pipeline, can manually adjust polishing liquid measure size through the flowmeter, control mechanism is electric in flowmeter and alarm respectively, when the flow is too low, reports to the police through the alarm, prevents to burn the work piece.

To further improve the accuracy of polishing, the polishing mechanism 4 further includes an adjustment assembly 43 for adjusting the angle of the polishing wheel 42. Specifically, the adjusting assembly 43 includes an adjusting drive source 431 and a connection base 432, the adjusting drive source 431 is an adjusting motor, and one side of the connection base 432 is connected to the adjusting drive source 431 and the other side is connected to the polishing drive source 41. The adjusting driving source 431 drives the polishing driving source 41 and the polishing wheel 42 to rotate through the connecting seat 432, so that the polishing wheel 42 swings at different angles, the attaching effect of the polishing wheel 42 and the surface of a workpiece is guaranteed, and the polishing precision is improved.

It should be noted that, in the polishing process, the polishing solution needs to be sprayed to the workpiece for auxiliary polishing, in the sanding and polishing processes, the cooling solution needs to be sprayed to the workpiece for cooling, and impurities are taken away by the cooling solution, so that each electric element in the sanding device needs to be waterproof, and the bearing mechanism 1, the sanding mechanism 2, the moving mechanism 3 and the polishing mechanism 4 are all provided with waterproof covers and/or drain holes, so that anti-blocking combination is realized, and the waterproof protection effect is realized.

The working process of the sanding device provided by the embodiment comprises the following steps:

1) The X-direction driving source 311 can drive the X-direction platform 312 and drive the Z-direction driving component 33 and the sanding mechanism 2 to move along the X-direction, the Z-direction driving component 33 can drive the Z-direction platform 332 and drive the sanding mechanism 2 to move along the Z-direction, and the Y-direction driving component 32 can drive the Y-direction platform 322 and drive the bearing mechanism 1 to move along the Y-direction, so as to adjust the relative positions of the sanding mechanism 2 and the bearing mechanism 1;

2) The workpiece is adsorbed on the carrier 13 through a vacuum generator, the offset driving source 111 can drive the eccentric shaft 112 to rotate, the eccentric shaft 112 drives the connecting rod 114 to rotate and the workbench 113 to move along the X direction, and the rotating driving source drives the carrier 13 and the workpiece to rotate through the speed reducer 122;

3) When the workpiece needs sanding, the sanding driving source 21 drives the sanding component 23 to rotate through the connecting piece 22, so as to perform sanding with different grades on the surface of the workpiece;

4) When a workpiece needs to be polished, the polishing mechanism 4 is replaced with the sanding mechanism 2, the polishing driving source 41 and the polishing wheel 42 are driven to rotate by the adjusting driving source 431 through the connecting seat 432, the polishing wheel 42 can swing at different angles, the polishing driving source 41 can drive the polishing wheel 42 to rotate, and polishing liquid is sprayed to the workpiece through a pipeline so as to polish the workpiece.

The sanding device provided by the invention can be applied to an automatic production line, and the production line comprises the sanding device, so that the production line has three linear degrees of freedom, and the positions of the bearing mechanism 1 and the sanding mechanism 2 are timely adjusted according to actual needs so as to improve the surface appearance of a workpiece; the bearing mechanism 1 can drive the workpiece to rotate, and the sanding driving source 21 can drive the sanding assembly to rotate, so that the sanding assembly has two rotational degrees of freedom and is used for sanding the whole surface of the workpiece. Therefore, the sanding device has three linear degrees of freedom and two rotational degrees of freedom, can realize sanding of various workpieces, has strong universality, and solves the problem of high sanding difficulty of arc-shaped workpieces, thereby improving the production efficiency and sanding precision.

In the description herein, it should be understood that the terms "upper," "lower," "right," and the like are used for convenience in description and simplicity of operation only, and are not to be construed as limiting the invention, as the devices or elements referred to must have, be constructed or operated in a particular orientation. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, the foregoing description of the preferred embodiments and the principles of the invention is provided herein. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims

1. A sanding device comprising:

the bearing mechanism (1) is used for bearing a workpiece, and the bearing mechanism (1) can drive the workpiece to rotate;

The sanding mechanism (2) is positioned above the bearing mechanism (1), the sanding mechanism (2) comprises a sanding driving source (21) and a sanding assembly connected to the output end of the sanding driving source (21), and the sanding driving source (21) can drive the sanding assembly to rotate and is used for sanding the workpiece;

the moving mechanism (3) is respectively connected with the bearing mechanism (1) and the sanding mechanism (2), the bearing mechanism (1) can move along the Y direction under the driving of the moving mechanism (3), the sanding mechanism (2) can move along the X direction and the Z direction, and the X direction, the Y direction and the Z direction are mutually perpendicular;

the sanding assembly comprises a connecting piece (22) connected to the output end of the sanding driving source (21) and a plurality of sanding components (23), each side surface of the connecting piece (22) is correspondingly connected with one sanding component (23), and the sanding components (23) are respectively fixed with sand paper of different types;

and the polishing mechanism (4) is selectively connected with the moving mechanism (3) by the polishing mechanism (4) and the sanding mechanism (2), and the polishing mechanism (4) is used for polishing the workpiece.

2. Sanding apparatus according to claim 1, characterized in that the carrying means (1) comprises an offset assembly (11), a rotating assembly (12) connected to the offset assembly (11) and a carrier (13) for carrying the workpiece, the offset assembly (11) being capable of driving the rotating assembly (12) and the carrier (13) to move in the X-direction, the rotating assembly (12) being connected to the carrier (13) and being capable of driving the carrier (13) to rotate.

3. Sanding apparatus according to claim 2, wherein the offset assembly (11) comprises:

an offset drive source (111);

An eccentric shaft (112) connected to an output end of the offset drive source (111);

a table (113) connected to the rotating assembly (12);

And one end of the connecting rod (114) is sleeved on the eccentric shaft (112), the other end of the connecting rod is connected to the workbench (113), and the offset driving source (111) can drive the eccentric shaft (112) to rotate and drive the connecting rod (114) to rotate and the workbench (113) to move.

4. A sanding apparatus as defined in claim 3, wherein the rotary assembly (12) includes:

A rotation drive source (121);

The speed reducer (122), one end of the speed reducer (122) is connected to the output end of the rotary driving source (121), the other end of the speed reducer is connected to the carrier (13), and the rotary driving source (121) drives the carrier (13) to rotate through the speed reducer (122).

5. Sanding apparatus according to claim 4, characterized in that the carrying means (1) further comprise:

a drive gear (123) connected to an output end of the rotation drive source (121);

a driven gear (124) connected to the decelerator (122) and meshed with the driving gear (123);

And the vacuum generator is arranged in the driven gear (124) and the speed reducer (122) in a penetrating way and communicated with the carrier (13) and is used for adsorbing the workpiece on the carrier (13).

6. Sanding apparatus according to claim 1, characterized in that the sanding member (23) comprises:

A vibration drive source (231);

And one side of the polishing head (232) is connected with the vibration driving source (231), the other side of the polishing head is detachably connected with the abrasive paper, and the vibration driving source (231) can drive the abrasive paper to vibrate through the polishing head (232).

7. Sanding apparatus according to claim 1, characterized in that the polishing mechanism (4) comprises a polishing drive source (41) and a plurality of polishing wheels (42), the output end of the polishing drive source (41) being connected to the polishing wheels (42) and being capable of driving the polishing wheels (42) to rotate.

8. The sanding apparatus of claim 7, wherein the polishing mechanism (4) further comprises an adjustment assembly (43), the adjustment assembly (43) comprising an adjustment drive source (431) and a connection base (432), one side of the connection base (432) being connected to the adjustment drive source (431) and the other side being connected to the polishing drive source (41).