Disclosure of utility model
Based on the above, it is necessary to provide a single-sided polishing machine which can accurately adjust the pressure of each grinding disc, has uniform stress on products, can monitor the horizontal state of equipment in real time and has high working efficiency.
A single-sided polisher, comprising:
The support assembly comprises a base, a first driving motor, a lower millstone and a transmission mechanism, wherein the upper surface of the base is provided with a drainage groove, the first driving motor is accommodated in an inner cavity of the base, the lower millstone is positioned above the drainage groove, and the transmission mechanism penetrates through the bottom surface of the drainage groove and is respectively in driving connection with an output shaft of the first driving motor and the lower millstone;
The first lifting assembly comprises a first lifting frame fixed on the upper surface of the base and positioned at one side of the drainage groove, a first screw rod rotatably installed on the first lifting frame and extending along the height direction of the first lifting frame, a second driving motor fixed on the first lifting frame and driving the first screw rod to rotate, a first nut sleeved on the first screw rod and in threaded fit with the first screw rod, a first mounting plate fixedly connected with the first nut, a third driving motor fixed on the first mounting plate, and
The disc turning assembly comprises a control box located above the lower disc and a driving assembly contained in the control box, a plurality of disc feeding mechanisms are respectively arranged above and below the control box, the side wall of the control box is in driving connection with an output shaft of a third driving motor, the control box is turned over under the driving of the output shaft of the third driving motor, the driving assembly comprises a plurality of fourth driving motors contained in the control box and corresponding to the disc feeding mechanisms one by one, each disc feeding mechanism comprises a rotary joint, a cylinder barrel sleeved on the rotary joint and communicated with an external air pressure device, a piston penetrating through an inner cavity of the cylinder barrel and sleeved on the rotary joint, a vacuum disc installed at the bottom of the rotary joint and rotating under the driving of the rotary joint, a jig disc fixed on one side of the vacuum disc back to the rotary joint, and a grinding fluid guide piece fixedly connected with one side of the vacuum disc and used for being connected with grinding fluid, the piston is respectively in sealing fit with the cylinder barrel and the rotary joint, and a telescopic end of the piston is fixedly connected with the vacuum disc, and the output end of each fourth driving motor penetrates through a bottom plate of the control box or a corresponding disc and is connected with the rotary joint.
In one embodiment, the bottom surface of the drain tank is provided with a through hole, the supporting component further comprises a mounting ring which is positioned in the drain tank and surrounds the edge of the through hole, and a crossed roller bearing which is fixed on the mounting ring and matched with the transmission mechanism, and the mounting ring is fixedly connected with the bottom surface of the drain tank.
In one embodiment, the first lifting assembly further comprises two first linear guide rails fixed on the first lifting frame and extending along the height direction of the first lifting frame, and two first sliding blocks sleeved on the two first linear guide rails in a one-to-one corresponding sliding manner, wherein the two first linear guide rails are oppositely arranged, and the first mounting plate is arranged on the two first linear guide rails in a straddling manner and fixedly connected with the two first nuts.
In one embodiment, the single-sided polishing machine further comprises a second lifting assembly, wherein the second lifting assembly comprises a second lifting frame fixed on the upper surface of the base and positioned on the other side of the water drainage groove, a second screw rod rotatably installed on the second lifting frame and extending along the height direction of the second lifting frame, a fifth driving motor fixed on the second lifting frame and driving the second screw rod to rotate, a second nut sleeved on the second screw rod and in threaded fit with the second screw rod, two second linear guide rails oppositely arranged and fixed on the second lifting frame and extending along the height direction of the second lifting frame, two second sliding blocks sleeved on the two second linear guide rails in a one-to-one corresponding sliding manner, a second mounting plate fixedly connected with the second nut and the two second sliding blocks respectively, and a supporting rod fixed on the second mounting plate and inserted into the side wall of the control box so as to be in rotational fit with the control box.
In one embodiment, the first lifting frame and the second lifting frame are rectangular cast iron frames formed integrally.
In one embodiment, the jig tray is provided with a plurality of mounting grooves for loading products to be polished, and the bottom surface of the mounting grooves is provided with air holes penetrating through one surface of the jig tray adjacent to the vacuum tray.
In one embodiment, the middle part of the jig disc is provided with a liquid inlet, and the grinding liquid guide piece is provided with a first liquid outlet pipe which is correspondingly communicated with the liquid inlet, and a second liquid outlet pipe which is led out from the edge of the jig disc and corresponds to the lower grinding disc.
In one embodiment, the axial direction of the output shaft of the fourth driving motor is the same as the extending direction of the rotary joint.
In one embodiment, the axial direction of the output shaft of the fourth driving motor is perpendicular to the extending direction of the rotary joint, and the tray assembly further comprises a hollow right-angle speed reducer, and the hollow right-angle speed reducer is connected with the output shaft of the fourth driving motor and the rotary joint respectively.
In one embodiment, a first disc is arranged on a top plate of the control box, a second disc is arranged on a bottom plate of the control box, four upper grinding disc mechanisms are uniformly arranged on the first disc along the circumferential direction, and four upper grinding disc mechanisms are uniformly arranged on the second disc along the circumferential direction.
The single-sided polishing machine can realize independent control of each jig disc and the rotating speed of a product fixed on the jig disc by correspondingly controlling the corresponding upper grinding disc mechanisms through the plurality of fourth driving motors, can realize accurate adjustment of the pressure of each jig disc by driving the vacuum disc to lift through the piston so as to control the uniform stress of the product positioned between the jig disc and the lower grinding disc, so that the thickness of the polished and ground product is uniform, the surface quality of the product is improved, the horizontal state of the turnover disc assembly can be known in real time by monitoring the working parameters of the second driving motor and the third driving motor, the horizontal state of the turnover disc assembly is adjusted by adjusting the working parameters of the second driving motor and the third driving motor, periodic shutdown detection is not needed, the detection time is shortened, and the equipment working efficiency is improved.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
Referring to fig. 1, the utility model discloses a single-sided polishing machine capable of accurately adjusting the pressure of each grinding disc, enabling uniform stress of products and real-time monitoring of the horizontal state of the equipment and high working efficiency of the equipment, wherein the single-sided polishing machine comprises a supporting component 100, a first lifting component 200 and a turning disc component 300, wherein the supporting component 100 is used as a machine table of the whole single-sided polishing machine and is used for providing a lower grinding disc part of the polishing machine, the turning disc component 300 is used for installing products to be polished and driving the products to rotate so as to enable the products to rotate relatively with the lower grinding disc in the process of contacting with the lower grinding disc, so that uneven parts of the surfaces of the products and the thicknesses of the surfaces of the products to be removed can be removed are removed, the first lifting component 200 is used for supporting and installing the turning disc component 300 and adjusting the vertical height of the turning disc component 300 and the angle of the turning disc component 300 in a vertical plane, so that the products to be polished arranged on the upper surface and the lower surface of the turning disc component 300 can be alternately matched with the lower grinding disc and polished, and when the lower grinding disc contacts with the products below the turning disc component 300 and polishes, an operator can take the products above the turning disc component 300 or a new polishing machine to continuously lift the products to be carried out, and the polishing efficiency is improved.
Specifically, referring to fig. 1-3, the support assembly 100 includes a base 120 having a drainage groove 110 on an upper surface thereof, a first driving motor 130 accommodated in an inner cavity of the base 120, a lower grinding disc 140 located above the drainage groove 110, and a transmission mechanism 150 penetrating a bottom surface of the drainage groove 110 and respectively in driving connection with an output shaft of the first driving motor 130 and the lower grinding disc 140. In this embodiment, the diameter of the drain groove 110 is larger than the diameter of the lower grinding stone 140, that is, the projection of the lower grinding stone 140 on the upper surface of the base 120 falls completely into the drain groove 110, so that the grinding waste liquid during the product polishing process drops into the drain groove 110 via the edge of the lower grinding stone 140. Further, the bottom of the drain tank 110 communicates with an external waste collection tank to intensively collect and treat the ground waste. In addition, in the embodiment, the base 120 is an integrally formed cast iron frame, each side of the base 120 is provided with a baffle, at least one side of the base 120 is provided with an openable access door, the first driving motor 130 is a servo motor, and a speed reducer is installed between the first driving motor 130 and the transmission mechanism 150, so that the rotation speed of the lower grinding disc 140 meets the operation requirement. The transmission mechanism 150 is actually a lower grinding disc 140 mounting shaft in driving connection with the speed reducer, and in addition, the top end of the transmission mechanism 150 is higher than the upper surface of the base 120, so that the lower grinding disc 140 is located above the base 120, and interference between the turnover disc assembly 300 and the base 120 in product polishing operation is avoided.
In one embodiment, the bottom surface of the drain tank 110 is provided with a through hole, and the support assembly 100 further includes a mounting ring 160 disposed in the drain tank 110 and surrounding the edge of the through hole, and a cross roller bearing 170 fixed on the mounting ring 160 and cooperating with the transmission mechanism 150, where the mounting ring 160 is fixedly connected to the bottom surface of the drain tank 110. By arranging the crossed roller bearing 170, the rotation precision of the lower grinding disc 140 is improved, the rotation stability of the lower grinding disc 140 is improved, the shaking of the lower grinding disc 140 in the polishing operation process is reduced, and the polishing quality of products is improved. The bottom of the base 120 is also provided with a support leg 180 for lifting the whole polishing machine to avoid the water inlet of the electric devices in the base from being affected by damp, and the base 120 is also provided with a control panel 190 electrically connected with each driving motor, so that an operator can adjust the working parameters of the polishing machine by operating the control panel 190.
Referring to fig. 1 to 4, the first elevation assembly 200 includes a first elevation frame 210 fixed to an upper surface of the base 120 and located at one side of the drain tank 110, a first screw rod 220 rotatably installed on the first elevation frame 210 and extending in a height direction of the first elevation frame 210, a second driving motor 230 fixed to the first elevation frame 210 and driving the first screw rod 220 to rotate, a first nut 221 sleeved on the first screw rod 220 and screw-coupled with the first screw rod 220, a first mounting plate 240 fixedly connected with the first nut 221, and a third driving motor 250 fixed to the first mounting plate 240. In this embodiment, the first screw rod 220 is a precision ball screw, the first lifting frame 210 is a rectangular cast iron frame formed integrally, and includes a left upright post and a right upright post which are arranged relatively, an upper transverse plate fixedly connected with the tops of the left upright post and the right upright post, and a lower transverse plate fixedly connected with the bottoms of the left upright post and the right upright post, wherein the left upright post, the right upright post, the upper transverse plate and the lower transverse plate enclose a first installation cavity, the first screw rod 220 is accommodated in the first installation cavity and is respectively in running fit with the upper transverse plate and the lower transverse plate, the second driving motor 230 is a servo motor, and a speed reducer is arranged between the second driving motor 230 and the bottom end of the first screw rod 220 so that the first screw rod 220 rotates at a relatively low speed, thereby achieving the purpose of precisely controlling the heights of the first installation plate 240 and the third driving motor 250 and further achieving the purpose of controlling the height of the turnplate assembly 300. Specifically, in the present embodiment, when the second driving motor 230 works, the rotation speed of the output end of the second driving motor 230 is reduced by the speed reducer, so that the first screw rod 220 rotates at a lower rotation speed, and as the first screw rod 220 is in threaded engagement with the first nut 221, in the process of rotating the first screw rod 220, the first nut 221 drives the first mounting plate 240 to move along the axial direction of the first screw rod 220, so as to realize lifting of the first mounting plate 240 and the pan assembly 300. The third driving motor 250 is used for controlling the entire turnover of the turnover assembly 300 so that the products at both sides of the turnover assembly 300 can be polished alternately. Similarly, in this embodiment, the third driving motor 250 is a servo motor, and the output shaft of the third driving motor 250 is connected with a speed reducer, so that the pan assembly 300 can be turned at a relatively low rotation speed, so as to accurately adjust the horizontal state of the pan assembly 300.
Further, in order to improve the stability of lifting the tray assembly 300, the first lifting assembly 200 further includes two first linear rails 260 fixed on the first lifting frame 210 and extending along the height direction of the first lifting frame 210, two first sliders 270 slidably sleeved on the two first linear rails 260 in a one-to-one correspondence manner, and the two first linear rails 260 are oppositely disposed, and the first mounting plate 240 spans the two first linear rails 260 and is fixedly connected with the two first nuts. In this embodiment, the two first linear guide rails 260 are respectively fixed on the left upright and the right upright, the first mounting plate 240 is straddled on the two first linear guide rails 260, and the stability of the first mounting plate 240 is improved by increasing the indirect matching area between the first mounting plate 240 and the first lifting frame 210, so that the stability of the lifting process of the first mounting plate 240 and the tray assembly 300 is reduced.
Referring to fig. 1-7, the pan assembly 300 includes a control box 310 located above the lower grinding disc 140 and a driving assembly accommodated in the control box 310, wherein a plurality of upper grinding disc mechanisms are respectively arranged above and below the control box 310, a side wall of the control box 310 is in driving connection with an output shaft of the third driving motor 250, the control box 310 is driven by the output shaft of the third driving motor 250 to turn over, the driving assembly includes a plurality of fourth driving motors 320 accommodated in the control box 310 and corresponding to the upper grinding disc mechanisms one by one, the upper grinding disc mechanisms include rotary joints 330, cylinder barrels 340 sleeved on the rotary joints 330 and communicated with an external air pressure device, pistons 350 penetrating through inner cavities of the cylinder barrels 340 and sleeved on the rotary joints 330, a vacuum disc 360 installed at the bottom of the rotary joints 330 and driven by the rotary joints 330, a jig disc 370 fixed on one surface of the vacuum disc 360 and opposite to the rotary joints 330, a grinding fluid guide 380 fixedly connected with one surface of the vacuum disc 360 and used for accessing grinding fluid, and the grinding fluid guide 380 is used for conveying the grinding fluid to contact parts between products and the lower grinding discs 140. The piston 350 is respectively in sealing fit with the cylinder 340 and the rotary joint 330, the telescopic end of the piston 350 is fixedly connected with the vacuum disc 360, and the output end of each fourth driving motor 320 penetrates through the top plate or the bottom plate of the control box 310 and is in driving connection with the rotary joint 330 of the corresponding upper grinding disc mechanism, that is, each upper grinding disc mechanism is independently driven by one fourth driving motor 320 to control the rotating speed, and each jig disc 370 is controlled to lift by the independent piston 350, so that the pressure of each jig disc 370 can be accurately controlled in the polishing operation process, so that all parts on a product are uniformly stressed, and the polishing effect is improved.
In this embodiment, the bottom end of the rotary joint 330 is provided with a non-circular groove, the middle of the vacuum disk 360 adjacent to one surface of the rotary joint 330 is provided with a plunger rod, the plunger rod is slidably inserted into the non-circular groove, and the outline of the ring side of the plunger rod is adapted to the shape of the inner outline of the non-circular groove, so, in the process of rotating the rotary joint 330, the rotary joint 330 drives the plunger rod and the vacuum disk 360 to synchronously rotate, and further the jig disk 370 fixed on the vacuum disk 360 and the product installed in the jig disk 370 synchronously rotate. Meanwhile, when the pressure of the jig disc 370 needs to be regulated, the piston 350 is pushed by the gas in the cylinder 340 to approach or depart from the third driving motor so as to drive the vacuum disc 360 and the jig disc 370 to lift, and the purpose of regulating the pressure of the jig disc 370 is achieved by regulating the distance between the jig disc 370 and the lower grinding disc 140 so as to improve the stress condition of the product. In addition, in this embodiment, it is necessary to ensure that the rotation directions of the jig plate 370 and the lower grinding plate 140 are opposite in order to improve the polishing efficiency of the product.
In one embodiment, the jig plate 370 is provided with a plurality of mounting grooves 371 for loading products to be polished, and the bottom surface of the mounting grooves 371 is provided with air holes penetrating through one surface of the jig plate 370 adjacent to the vacuum plate 360. The edge of the jig plate 370 is fixed with the vacuum plate 360 by screws, the vacuum plate 360 is communicated with an external vacuum device, when a product needs to be clamped, the vacuum plate 360 is communicated with the external vacuum device, negative pressure is formed in the mounting groove 371, and then a product to be polished is placed in the mounting groove 371, so that the product is adsorbed in the mounting groove 371 under the action of the negative pressure, and the product is fixed. In addition, in this embodiment, the middle part of the jig plate 370 is provided with the liquid inlet 372, and the grinding liquid guide 380 is provided with the first liquid outlet pipe corresponding to the liquid inlet 372, the second liquid outlet pipe leading out from the edge of the jig plate 370 and corresponding to the lower grinding disc 140, so that grinding liquid can be filled from the center and the edge of the jig plate 370 simultaneously in the product polishing process, so that the grinding liquid can flow into between the product and the lower grinding disc 140 more uniformly, the product grinding uniformity is improved, and the product flatness is improved.
The fourth driving motor 320 adopted in the present embodiment is a servo motor. In one embodiment, the axial direction of the output shaft of the fourth driving motor 320 is the same as the extending direction of the rotary joint 330. Further, a decelerator is provided between the fourth driving motor 320 and the rotary joint 330. In another embodiment, the axial direction of the output shaft of the fourth driving motor 320 is perpendicular to the extending direction of the rotary joint 330, and the pan assembly 300 further includes a hollow right angle reducer 390 connected to the output shaft of the fourth driving motor 320 and the rotary joint 330, respectively. In actual production, the installation direction of the fourth driving motor 320 can be reasonably arranged according to the structure of the control box 310, and a suitable speed reducer is selected, which is not described herein.
In addition, in this embodiment, a first disc 311 is disposed on a top plate of the control box 310, a second disc 312 is disposed on a bottom plate of the control box 310, four upper grinding disc mechanisms are uniformly disposed on the first disc 311 along a circumferential direction, and four upper grinding disc mechanisms are uniformly disposed on the second disc 312 along the circumferential direction. Correspondingly, eight fourth driving motors 320 are accommodated in the control box 310, wherein four fourth driving motors 320 are fixed on the top plate of the control box 310, and the other four fourth driving motors 320 are fixed on the bottom plate of the control box 310, so that when the polishing machine performs single polishing operation, products on the four jig plates 370 are simultaneously contacted with the lower grinding disc 140 and polished, and polishing efficiency is improved. Under the condition that products on jigs on two sides of the control box 310 are alternately matched with the lower grinding disc 140 to polish through the overturning control box 310, the working procedure of stopping the machine to take and put the products is omitted, the productivity of the polishing machine per hour reaches 400PCS, under the condition that the pressure of each jig disc 370 is independently controlled to enable the products to be uniformly stressed, the polishing rate of the polishing machine adopting the scheme can reach 95%, and compared with the productivity 300PCS of the traditional grinding machine equipment per hour, the productivity of the polishing machine of the scheme is obviously improved, and the yield of the products is also improved.
Referring to fig. 1 to 4 and fig. 8, in an embodiment, the single-sided polishing machine further includes a second lifting assembly 400, the second lifting assembly 400 includes a second lifting frame 410 fixed on an upper surface of the base 120 and located at the other side of the drainage channel 110, a second screw rod 420 rotatably installed on the second lifting frame 410 and extending along a height direction of the second lifting frame 410, a fifth driving motor 430 fixed on the second lifting frame 410 and driving the second screw rod 420 to rotate, a second nut 421 sleeved on the second screw rod 420 and in threaded engagement with the second screw rod 420, two second linear guide rails 440 oppositely disposed and fixed on the second lifting frame 410 and extending along the height direction of the second lifting frame 410, two second sliders 450 slidably sleeved on the two second linear guide rails 440 in one-to-one correspondence, a supporting rod 470 fixedly connected with the second nut 421 and the two second sliders 450 respectively, fixed on the second mounting plate 460 and inserted into a side wall of the control box 310 to be in rotational engagement with the control box 310. Preferably, the first lifting frame 210 and the second lifting frame 410 are rectangular cast iron frames formed integrally. In this embodiment, the structure of the second lifting frame 410 is the same as that of the first lifting frame 210, a second installation cavity is also provided in the second lifting frame 410, the second screw rod 420 and the two second linear guide rails 440 are both disposed in the second installation cavity, and the lifting process of the second installation plate 460 is the same as that of the first installation plate 240, and the foregoing description about the lifting process of the first installation plate 240 will be referred to specifically, and will not be repeated here. Through setting up second lifting unit 400, second lifting unit 400 supports the dish subassembly 300 with first lifting unit 200 jointly, has further improved the stability of dish subassembly 300 lift process and the stability of dish subassembly 300 installation, avoids tool dish 370 to produce at the product polishing in-process and rocks to promote the product polishing effect.
The single-sided polishing machine correspondingly controls the corresponding upper grinding disc mechanisms to work through the plurality of fourth driving motors 320, can realize independent control of the rotation speeds of each jig disc 370 and products fixed on the jig discs 370, can realize accurate adjustment of the pressure of each jig disc 370 by driving the vacuum discs 360 to lift through the pistons 350, can control the products between the jig discs 370 and the lower grinding discs 140 to be uniformly stressed, can enable the thickness of the polished products to be uniform, and can improve the surface quality of the products, can realize the horizontal state of the turnover disc assembly 300 in real time by monitoring the working parameters of the second driving motor 230 and the third driving motor 250, can adjust the horizontal state of the turnover disc assembly 300 by adjusting the working parameters of the second driving motor 230 and the third driving motor 250, does not need to stop the detection regularly, reduces the detection time, and is beneficial to improving the working efficiency of equipment.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.