Precise grinding and polishing device for rubber roller surface with grinding changed from turning

Abstract

The utility model relates to the field of mechanical equipment, in particular to a precise grinding and polishing device for a rubber roller surface changed from a vehicle to grinding. The device is suitable for precisely grinding and polishing high-requirement rubber roller surfaces mounted on special equipment of various PCB (Printed Circuit Board) grinding machines. The abrasive belt of the device is made of silicon carbide abrasive materials, the problem that the rubber surface is scratched due to sand falling of a conventional abrasive belt is solved, meanwhile, heat generated during high-speed rotation of the abrasive belt is reduced due to the fact that the non-stick property of the silicon carbide abrasive belt is matched with the autorotation characteristic of the contact wheel, and grinding and polishing of the low-melting-point rubber surface are facilitated. Due to the design of the base supporting plate, a numerical control lathe tool rest can be clamped conveniently, stress is good, the effective stroke of the device is not limited through a numerical control lathe grinding mode, a numerical control lathe or a center lathe can be used in a matched mode according to the model of the numerical control lathe or the center lathe, and installation and use are more flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment field, concretely is a rubber roller surface precision grinding and polishing device of car modification grinding. BACKGROUND

[0002] Rubber roller plays multiple roles in industrial applications, such as supporting transmission, buffering and damping, anti-skid stability, and protecting workpieces, especially in occasions requiring accurate control of material processing and equipment protection, such as special equipment for various PCB grinding machines. These devices have higher requirements for the roller surface precision and surface texture of rubber rollers. The common grinding and polishing method for rubber rollers is to use hand-dragged sandpaper on a general lathe, which has deficiencies in the precision and surface texture of the rubber roller surface. Moreover, conventional rubber roller surface polishing often needs to be combined with water sand belt and polishing powder, which is harmful to human body and has safety hazards. The sand belt of the conventional sand belt polishing machine easily generates heat when contacting the surface of the processed object, which is not friendly to low-melting-point rubber surfaces. The utility model effectively disperses heat through the non-stick property of the silicon carbide sand belt and the self-rotation feature of the guide wheel, which is beneficial to the grinding and polishing of low-melting-point rubber surfaces. At present, there is no polishing mechanism in the industry that can grind rubber by using a numerical control lathe without affecting the size of the rubber surface or controlling it below the micron level and having a higher surface smoothness than similar modified equipment. SUMMARY

[0003] The utility model aims at providing a rubber roller surface precision grinding and polishing device of car modification grinding, which effectively solves the problems raised in the background technology.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A rubber roller surface precision grinding and polishing device of car modification grinding, the grinding and polishing device is installed on a lathe, comprising a main mounting plate, the main mounting plate is provided with a roller mounting plate, the roller mounting plate is provided with a fine adjustment sliding plate and a supporting roller, the fine adjustment sliding plate is provided with a fine adjustment roller and a dial indicator, one end of the main mounting plate is provided with a transmission motor and a tension adjusting arm, one end of the tension adjusting arm is a circular structure, the circular structure is connected with the transmission motor, the transmission motor is provided with a driving wheel and a safety guard, the driving wheel is provided with a silicon carbide sand belt, the silicon carbide sand belt passes through the supporting roller and the fine adjustment roller, and the tension adjusting arm is provided with a hydraulic supporting rod and an adjusting locking block.

[0006] Further, the main mounting plate is fixed on a base support plate, the base support plate is installed on a fixed base, and the fixed base is installed on a four-square tool rest; the four-square tool rest comprises a sliding plate and a sliding rail, and the fixed base is installed on the sliding plate and can move along the sliding rail.

[0007] Further, the supporting roller is provided with a spiral groove to prevent the abrasive belt from running out of position, and the surface of the fine adjustment roller is provided with a slope structure to smoothly grind the rubber roller step.

[0008] Further, one end of the fine adjustment sliding plate is provided with a slot, and the dial indicator is installed on the slot to fine adjust through the numerical value indication of the dial indicator, thereby replacing the tension meter to control the wrapping area range of the abrasive belt on the machining surface.

[0009] Further, the main mounting plate is provided with a sliding groove, the top of the hydraulic supporting rod is connected with the tension adjusting arm, the top of the hydraulic supporting rod is connected with the sliding groove, the other end of the tension adjusting arm is provided with a slot, the slot is provided with a supporting wheel, and the adjusting locking block is installed on the slot and connected with the supporting wheel at the bottom.

[0010] Further, the four-square tool holder is provided with a pneumatic tailstock and a chuck, the pneumatic tailstock is provided with a rotary center and a tailstock pull rod, the chuck clamps and positions the rubber roller, the rotary center is connected with the rubber roller, and the tailstock pull rod is interlocked with the lathe to fix the tailstock.

[0011] Further, the safety shield is arranged behind the driving wheel to prevent the personnel from contacting the high-speed rotating driving wheel, prevent dust and machining debris from splashing, and avoid potential safety hazards.

[0012] The improved technical scheme has the following beneficial effects:

[0013] 1. The polishing and grinding device modified from the numerical control lathe is flexible to use, the machining state of the lathe can be switched at any time, the polishing operation can be automatically realized by cooperating with the mechanical hand, and the polishing and grinding efficiency is effectively improved.

[0014] 2. The device has a simple structure and is easy to maintain, the key parts are provided with safety protection, the high temperature generated by hard friction of the moving parts is avoided, and the service life can be effectively prolonged.

[0015] 3. The special customized silicon carbide abrasive belt is not easy to scratch the workpiece surface, so that higher quality surface polishing and grinding effects in the industry are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic view of the utility model.

[0017] Fig. 2 is a structural side view of the utility model.

[0018] Fig. 3 is a schematic view of the main mounting plate of the present application.

[0019] Fig. 4 is a tailstock center of the present application.

[0020] In the figure: 1, main mounting plate; 11, sliding groove; 2, base support frame; 21, fixed base; 22, four knife holder; 3, roller mounting plate; 31, supporting roller; 32, fine adjustment sliding plate; 321, fine adjustment roller; 322, dial indicator; 4, transmission motor; 41, driving wheel; 42, safety shield; 5, silicon carbide abrasive belt; 6, tension adjusting arm; 61, adjusting locking block; 62, supporting wheel; 63, hydraulic supporting rod; 7, pneumatic tailstock center; 71, rotary center; 72, tailstock pull rod; 8, chuck; 9, rubber roller. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be described in detail below with reference to the accompanying drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0022] Reference Figures 1-4 The present application provides a rubber roller surface precision grinding and polishing device for turning into grinding, which is installed on a lathe and comprises a main mounting plate 1, a roller mounting plate 3 fixedly installed on the main mounting plate 1, supporting rollers 31 and a fine adjustment sliding plate 32 installed on the roller mounting plate 3, fine adjustment rollers 321 and a dial indicator 322 installed on the fine adjustment sliding plate 32. The other end of the main mounting plate 1 is provided with a transmission motor 4 and a tension adjusting arm 6, one end of the tension adjusting arm 6 is in a circular structure, and the circular structure is connected with the transmission motor 4. The transmission motor 4 is provided with a driving wheel 41 and a safety shield 42, the driving wheel 41 is hung with a silicon carbide abrasive belt 5, and the silicon carbide abrasive belt 5 passes through the supporting rollers 31 and the fine adjustment rollers 321. The tension adjusting arm 6 is connected with an adjusting locking block 61 and a hydraulic supporting rod 63.

[0023] In use, the main mounting plate 1 is fixed on a base support plate 2, the base support plate 2 is installed on a fixed base 21, and the fixed base 21 is installed on a four knife holder 22. The four knife holder 22 comprises a sliding plate and a sliding rail, and the fixed base 21 is installed on the sliding plate and can move along the sliding rail. The device as a whole has been subjected to basic mechanical analysis, and the reasonable design of the base support structure has good anti-seismic effect, and is convenient for clamping and bearing stress of the numerical control lathe tool holder.

[0024] Specifically, the safety shield 42 installed on the transmission motor 4 covers the rear of the driving wheel 41, preventing personnel from contacting the high-speed rotating driving wheel 41, and preventing dust and machining debris from splashing, thereby avoiding potential safety hazards.

[0025] Specifically, the support roller 31 plays a role in correcting deviation through the design of a spiral groove, which can prevent the sand belt from running out of position. The surface of the fine adjustment roller 321 can pass the step of the rubber roller through the inclined surface structure, making the grinding smooth. The contact wheel mechanism is filled with grease for lubrication. Through the non-stick contact wheel self-rotation characteristics of the silicon carbide abrasive belt 5, the heat generated by the high-speed rotation of the contact wheel and the polishing belt is effectively dispersed, which is very friendly to the low-melting-point rubber surface.

[0026] Specifically, the silicon carbide abrasive belt 5 uses silicon carbide abrasive instead of the abrasive of conventional abrasive belts. Through process route planning optimization, the use of silicon carbide can solve the problem of conventional abrasive belt dropping sand and scratching the rubber surface, and the conventional polishing powder method is abandoned, which will not produce harmful substances to the environment, and is more energy-saving and environmentally friendly.

[0027] Specifically, one end of the fine adjustment sliding plate 32 is provided with a slot, and the dial gauge 322 is installed on the slot, replacing the tension meter to control the wrapping area range of the sand belt to the processing surface. It is found through multiple field tests that when the guide wheel is pushed forward, the wrapping area of the sand belt to the roller surface will increase, and this suitable adjustable wrapping area range is indicated by the numerical value of the dial gauge 322 for fine adjustment, so that the polishing surface can achieve the most ideal surface effect. At the same time, the value can also be indicated to prevent the vibration caused by the high-speed movement of the suspended sand belt in the local area.

[0028] Specifically, the main mounting plate 1 is fixed with a sliding groove 11, the top of the hydraulic support rod 63 is connected with the tension adjusting arm 6, the top is connected with the sliding groove 11, and the tension adjusting arm 6 adjusts the tensioning force through the hydraulic support rod 63. When the grinding and polishing device is running, the tensioning force is dynamically adjusted to adapt to the length change of the silicon carbide abrasive belt 5 in the processing process, thereby improving the stability of the device during operation. The other end of the tension adjusting arm 6 is provided with a slot, and the slot is provided with a supporting wheel 62. The adjusting locking block 61 is installed on the slot and the bottom is connected with the supporting wheel 61. The adjusting locking block 61 locks the supporting wheel 62 at the same time, so as to ensure that the supporting wheel 62 will not loosen when it is subjected to vibration changes.

[0029] Specifically, a pneumatic tailstock center 7 and a chuck 8 are arranged beside the four-sided tool holder 2. The pneumatic tailstock center 7 has a swivel center 71 and a tailstock pull rod 72. The rubber roller 9 is clamped and positioned by the chuck 8. The swivel center 71 is connected with the rubber roller 9, and the positions of the two are fixed to facilitate subsequent processing. The tailstock pull rod 72 is interlocked with the lathe to fix the tailstock center 7 during processing.

[0030] When working:

[0031] By replacing the dead center of the lathe tailstock with a swivel center, the vibration during the grinding process is significantly improved. Through parameter adjustment, the rubber roller can be ground and processed.

[0032] The final test parameters on the device of the utility model are: workpiece rotating speed 640 revolutions, grinding feed speed about 40mm / min, infeed 1.5mm, pre-press 0.02mm, the rubber roller after rubberizing is clamped on the lathe at 640 revolutions / min, 1000 mesh silicon carbide polishing belt is used for polishing about 3min / strip (two-way rough polishing twice), and the surface can reach the use requirement (4min is needed for processing one finished product). When the allowance exceeds 0.05mm, vibration begins to appear, therefore, the processing allowance cannot exceed 0.05mm.

[0033] Further completing the outer diameter grinding process of the conveying rubber roller (size guarantee and rubber surface appearance), the requirements are: outer diameter size tolerance 0-0.005mm, smooth rubber surface, no obvious visible knife marks or vibration marks.

[0034] The rubber roller after rough polishing is continuously fixed on the lathe, the two end centers are pre-loosened a little bit, the rotating speed is adjusted to 800 revolutions / min, 2000 mesh silicon carbide polishing belt is used for polishing about 1min30 seconds / strip (automatic feed polishing once), and the use requirement can be reached.

[0035] Grinding belt feed speed about 30mm / min, sand belt infeed amount 0.01mm, the rubber roller after grinding is clamped on the lathe at 800 revolutions / min, 3000 mesh silicon carbide sand belt is used for polishing about 2min / strip (automatic feed polishing once), and the surface can reach the use requirement (4min is needed for processing one finished product, including feeding and clamping). When the allowance exceeds 0.02mm, vibration begins to appear again, and the processing allowance cannot exceed 0.02mm.

[0036] Different from the rough polishing mode of the conventional polishing mechanism, the utility model controls the key points of rubber surface polishing, the key points are: the first is the wrapping area size of the sand belt on the rubber surface, the second is the relationship between the sand belt mesh and the mechanism fine adjustment, the third is that the precision, surface finish and sand belt amplitude balance are in an ideal stage, and a solution is provided for the rubber roller or other material rubber roller with high requirements and high precision.

[0037] The utility model can flexibly switch the processing state of the numerical control lathe through simple transformation of the numerical control lathe, the device has no limit to the effective stroke, and the numerical control lathe or the ordinary lathe can be used according to respective models. The rubber roller step position can be effectively avoided through the numerical control lathe instruction, and the rear use instruction is loosened to reset automatically, so that people can not participate, and the machine tool is more automatic. Compared with the traditional manual polishing, the polishing efficiency is more than 3 times that of the traditional manual polishing, and the surface quality has a great advantage over most same industries on the market.

[0038] It should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, and the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A precision grinding and polishing device for rubber roller surfaces on a vehicle, wherein the grinding and polishing device is installed on a vehicle, characterized in that: The utility model provides a kind of four-square knife rest, including main mounting plate, the main mounting plate is provided with roller mounting plate, the roller mounting plate is provided with fine adjustment sliding plate and support roller, fine adjustment sliding plate is equipped with fine adjustment roller and dial gauge;The other end of the main mounting plate is provided with transmission motor and tensioning adjusting arm, one end of the tensioning adjusting arm is circular structure, the circular structure is connected with transmission motor, the transmission motor has driving wheel and safety shield, the driving wheel has silicon carbide abrasive belt, the silicon carbide abrasive belt passes through support roller and fine adjustment roller, the tensioning adjusting arm is provided with hydraulic support rod and adjusting locking block.

2. A device for precision grinding and polishing of rubber roller surface of a vehicle modified grinder as claimed in claim 1, wherein: The main mounting plate is fixed on the base support plate, the base support plate is installed on the fixed base, and the fixed base is installed on the four-square knife rest.

3. A device for precision grinding and polishing of rubber roller surface of a vehicle modified grinder as claimed in claim 2, wherein: The four-square knife rest includes a sliding plate and a sliding rail, and the fixed base is installed on the sliding plate and can move along the sliding rail.

4. The device for precision grinding and polishing of rubber roller surface of claim 1, wherein: The support roller is provided with a spiral groove, and the fine adjustment roller has an inclined surface structure.

5. The device for precision grinding and polishing of rubber roller surface of claim 1, wherein: The fine adjustment sliding plate is provided with a slot at one end, and the dial gauge is installed on the slot.

6. A device for precision grinding and polishing of rubber roller surface of a vehicle modified grinder as claimed in claim 1, wherein: The main mounting plate has a sliding groove, the top of the hydraulic support rod is connected with the tensioning adjusting arm, the top is connected with the sliding groove, the other end of the tensioning adjusting arm is provided with a slot, the slot is provided with a support wheel below, and the adjusting locking block is installed on the slot and connected with the support wheel at the bottom.

7. The precision grinding and polishing device for rubber roller surfaces modified from machine tools according to claim 2, characterized in that: The four-square knife rest is provided with a pneumatic center tailstock and a chuck beside it, the pneumatic center tailstock is provided with a rotary center and a tailstock pull rod, the chuck clamps and positions a rubber roller, the rotary center is connected with the rubber roller, and the tailstock pull rod fixes the center tailstock.

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