CN207578138U - A kind of plastic products periphery and transverse plane polishing machine - Google Patents

Abstract

The utility model relates to a polishing machine for the outer circular surface and end plane of plastic products, which comprises a frame and a main shaft transmission system connected to the frame, a polishing cloth wheel rack feeding system, a tailstock and a protective device. The main shaft transmission system includes a main shaft , an indexing plate is installed on the main shaft, and the indexing plate is connected with the chuck through a pull pin, the main shaft is driven to rotate by the first driving device, and the feeding system of the polishing cloth wheel frame includes a bracket and a second driving device fixed on the bracket. The second driving device is connected with the polishing cloth wheel, the bracket is connected with the three-axis linkage system, a cloth wheel protective cover is provided on one side of the polishing cloth wheel, and the cloth wheel protective cover is connected with the exhaust cooling device, and the tailstock is connected with the card of the main shaft drive system The disc fits to clamp both ends of the workpiece. The protective device is used to ensure the personal safety of the operator during the processing and protect the important parts of the polishing machine. The polishing machine of the utility model can realize the polishing of the outer circular surface and the end surface of the complex curve. high working efficiency.

Description

A polishing machine for outer circular surface and end plane of plastic products

technical field

The utility model relates to the technical field of polishing equipment, in particular to a polishing machine for the outer circular surface and end plane of plastic products.

Background technique

The reprocessing of plastic materials is an indispensable and important process in the production process of plastic products. The purpose of improving the surface quality of plastic products is mainly to modify the appearance of plastic products. During the mass production and processing of plastic product shells such as automobile enclosures, electronic product shells, and transparent plastic windows, defects such as scratches, abrasions, and melting marks on the surface exist at a high frequency, so abrasive materials or polishing materials attached to the surface are used. The high-speed rotating polishing wheel of the brightening agent contacts the surface of the workpiece with a certain extrusion force, and uses the friction caused by the relatively high linear speed between the cloth wheel and the surface of the plastic product due to high-speed rotation to polish the inner and outer surfaces of the plastic product. Finishing finishing processing, that is, polishing processing of plastic products.

The current polishing machine is mainly used for effect treatment on the surface and pipes of metal products such as steel, aluminum, copper, etc., while the polishing machine designed for plastic products has not yet been developed and used on a large scale in China.

The main processing area of the cylindrical polishing machine is to perform finishing and finishing precision machining on the outer surface of workpieces that are cylindrical, conical or other shapes, and to remove scratches, burrs, Spots and other surface quality defects make the outer surface of the curved outer circle of the workpiece bright, smooth, have a mirror effect or reach a certain roughness level in the design and use requirements.

The patent application number is 201210050256.4, and the name is: an automatic polishing machine for outer circle and end face. Grinding disc to realize the polishing of the outer circular surface of the workpiece and the end faces on both sides. Since the outer cylindrical polishing grinding head is designed to be installed on the side of the linear guide rail of the bed, it cannot be moved. The workpiece to be polished can be clamped by the headstock and tailstock on the machine bed. Therefore, it can only polish the cylindrical side of the workpiece, and cannot realize the polishing of the complex outer circular surface of the workpiece with continuously variable cross-section. The polishing of the end face of the plugged hole on both sides of the workpiece is completed by the grinding disc, and the polishing area is small. At the same time, the polishing position It is fixed, which is significantly different from the polishing method of the utility model; the patent application number is 201310478211.1, and the name is: cloth wheel polishing machine. This patent mainly designs the structure of the polishing cloth wheel, and lacks the clamping design for the polished workpiece. The polishing track is artificially controlled, the polishing accuracy and surface quality cannot be guaranteed, and at the same time, it causes hidden dangers to the personal safety of the operators. At the same time, the polishing cloth wheel is arranged in the dust collection cover. Compared with the cloth wheel protective cover of the utility model, there is It is inconvenient to replace and cannot clean the polishing debris produced in the polishing process, and cannot reduce the local high temperature during continuous polishing, etc., but the design of the cloth wheel protective cover of the utility model can solve it; the patent application number is 201010593433.4, and the name is : Automatic cloth wheel polishing machine, the patent uses a three-axis linkage platform to control the polishing position of the workpiece, which can realize the movement of the workpiece along the X-axis and Y-axis, and realize the Z-axis rotation through the rotating arm, thereby realizing the replacement of the polishing edge, but lacks the Z-axis direction The height is adjusted and controlled, so the polishing machine cannot completely polish the workpiece with a high height in the Z-axis direction. At the same time, the lack of protective devices during the polishing process makes the operation process a safety hazard, and lacks the polishing debris and damage generated during the polishing process. The cloth collection and processing device produces a large amount of smoke and dust during polishing. The suction device only realizes the fixing of the workpiece position, and has no collection and processing effect; the cloth wheel is directly connected to the motor shaft, and the motor speed is high. When the polishing cloth wheel is in contact with the workpiece When it is used, it is easy to generate vibration and affect the polishing quality. This patent mainly polishes the plane edge and rounded corners of the workpiece, and cannot achieve continuous polishing of the outer circular surface of the workpiece.

Utility model content

The purpose of this utility model is to polish the outer circular surface and end plane of plastic products, provide a special polishing equipment that can change the movement track of the polishing cloth wheel according to the complex outer circular surface of the part, and take into account the polishing requirements of the outer circular surface and the end surface .

In order to achieve the above object, the utility model adopts the following technical solutions:

A polishing machine for outer circular surface and end plane of plastic products, comprising a frame, a main shaft drive system detachably connected to the frame, a polishing cloth wheel rack feeding system, a tailstock and a protective device.

Adjustment wheels are installed at the bottom of the frame, which is convenient to move. The frame is provided with multi-position mounting holes, which is convenient for the position adjustment of the main shaft drive system, the polishing cloth wheel frame feeding system, and the tailstock.

The main shaft transmission system includes a main shaft, on which an indexing plate is installed, and the indexing plate is connected with the chuck through a pull pin, and the main shaft is driven by the first driving device to rotate, and through the locking and pulling out of the pulling pin The state realizes the switching between the state that the chuck rotates with the spindle and the state that the spindle does not rotate and the chuck rotates manually.

The feeding system of the polishing cloth wheel frame includes a support and a second driving device fixed on the support, the second driving device is connected with the polishing cloth wheel, and the polishing cloth wheel is driven to rotate by the second driving device, and the support and the polishing cloth wheel are connected to each other. The three-axis linkage system is connected, and the three-axis linkage system drives the movement of the bracket in three directions to meet the polishing requirements for the complex curved surface. The side of the polishing cloth wheel is equipped with a split cloth wheel that is detachably connected to the bracket. The cover prevents the waste of the polishing material from splashing during the polishing process. At the same time, it can prevent the cloth wheel itself from being broken due to the impact and vibration of polishing due to quality problems. The cloth wheel and the workpiece are dissipated, and at the same time, the abrasive dust and damaged cloth are extracted.

The tailstock cooperates with the chuck of the main shaft transmission system to clamp the two ends of the workpiece to support and center the workpiece.

The protection device is used to ensure the personal safety of the operating workers during the processing and protect the important parts of the polishing machine.

Further, the first driving device includes a transmission motor, and the transmission motor drives the large pulley to rotate through a belt drive. The large pulley is connected to the gearbox to transmit power to the gearbox. The output shaft of the gearbox is connected to the gearbox through a coupling The device outputs the power to the indexing plate and the chuck.

Further, the three-axis linkage system includes an X-axis linear sliding pair fixed on the frame, a Y-axis linear sliding pair is connected to the X-axis linear sliding pair, and the X-axis linear sliding pair drives The Y-axis linear sliding pair moves along the X-axis. The Y-axis linear slide rail pair is connected to the Z-axis linear sliding pair to drive the Z-axis linear sliding pair to move along the Y-axis. The Z-axis slides linearly The pair is connected with the bracket, and drives the bracket to move along the Z axis.

Further, the X-axis linear slide rail pair and the Y-axis linear slide rail pair are electrically driven by a linkage motor, and the Z-axis linear slide rail pair is manually driven by a hand wheel.

Further, the second driving device includes a polishing motor, and the polishing motor drives the rotation of the cloth wheel shaft through the rotation of the belt, the polishing cloth wheel is fixed on the cloth wheel shaft, and the cloth wheel shaft is installed on the cloth wheel shaft through four angular contact ball bearings. On the bracket, the four angular contact ball bearings can prevent axial movement of the cloth wheel shaft during reciprocating motion during polishing in the X-axis direction.

Further, the cloth wheel protective cover is threadedly connected to the bracket through a threaded connecting rod, including the cover body and the end cap detachably connected with the cover body. cover, the polishing cloth wheel can be replaced.

Further, one end of the threaded connecting rod is used to compress the protective cover of the cloth wheel through a nut, and the other end is provided with a rod segment with a rectangular cross-section, which is convenient to cooperate with a wrench to tighten the threaded connecting rod on the bracket.

Further, the exhaust cooling device includes an exhaust fan pipeline and an exhaust fan connected to the exhaust fan pipeline, and the exhaust fan pipeline communicates with the cloth wheel protective cover, so as to accelerate the air flow in the processing area during the processing and enhance the polisher. Excellent heat dissipation performance to avoid surface burns or even damage to the workpiece due to overheating during the polishing process. At the same time, the grinding debris and damaged cloth are drawn out to clean the processing space to ensure that the polishing process can continue.

Further, the protective device includes a spindle box cover, which is used to cover the spindle transmission system and protect the components of the spindle transmission system. The spindle box cover is provided with a spindle box door, and one side of the spindle box cover is provided with The upper roller slideway and the desktop roller slideway, one end of the upper roller slideway is fixed on the upper end of the spindle box cover, and the other end is supported on the frame by the end support frame of the upper slideway, the upper roller slideway and the desktop roller slideway A sliding door that can slide along the upper roller slideway and the desktop roller slideway is set between the lanes, which is used to prevent plastic abrasive chips and damaged cloth from flying out during the processing. The sliding door is equipped with an observation window, which is convenient for the operator to Observe the workpiece during the polishing process.

Further, the tailstock slides on the guide rail of the tailstock body to realize axial movement in the direction of the main shaft to meet the polishing requirements of workpieces of different lengths, cooperate with the chuck to complete centering and clamping of the workpiece, and the tailstock body guide rail is fixed by bolts and nuts on the rack.

The beneficial effects of the utility model:

1. The polishing machine of this utility model can polish the outer circular surface and end plane of plastic products, which is different from the existing polishing machine with a single polishing surface, and realizes one machine with multiple functions, and completes the path planning of the polishing cloth wheel through the linkage of X and Y axes. Realize the polishing process of the complex and continuous outer circular surface of the rotary workpiece; by changing the chuck and using the hand wheel to adjust the height of the polishing cloth wheel in the Z-axis direction, adjust the horizontal height of the polishing cloth wheel, and realize the polishing of different height end planes to meet different requirements. Polishing requirements for shape and size workpieces.

2. An indexing plate is set between the first driving device and the chuck of the main shaft transmission system of the polishing machine of the present utility model. By controlling the pin pulling of the indexing plate, the chuck rotates with the main shaft to process the outer circular surface of the workpiece. When the main shaft is not rotating, the angle of the chuck can be manually adjusted through the indexing plate, which is convenient for processing the end surface of the workpiece.

3. The polishing machine of the utility model is equipped with a split polishing cloth wheel protective cover, and the polishing cloth wheel can be replaced without disassembling the protective cover as a whole.

4. The polishing machine of the present utility model has an air-ventilating cooling device, which can suck out the flying chips generated during the processing in time and play a role of heat dissipation at the same time.

5. The polishing motor of this utility model drives the polishing cloth wheel to rotate through the belt transmission mode. The belt transmission is selected because of its better cushioning performance in the transmission process, which can effectively absorb the vibration in the transmission and ensure that the processing accuracy of the polishing machine can meet the design requirements. Requirements, while improving the stability of the overall structure of the polishing wheel frame;

6. The main shaft transmission system, the polishing cloth wheel rack feeding system and the tailstock of the polishing machine of the utility model are fixed on the machine frame through screw connections, which are convenient for disassembly and installation. At the same time, the main shaft transmission system, tailstock, etc. can be adjusted according to different polishing requirements. Some parts are replaced as a whole and parts to realize the polishing of multi-size and multi-type workpieces.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and not to limit the present application.

Fig. 1 is a three-dimensional structural schematic diagram of the overall structure of the utility model;

Fig. 2 is a front schematic diagram of the overall structure of the utility model;

Fig. 3 is a schematic front view of the main shaft transmission system of the present invention;

Fig. 4 is a schematic side view of the main shaft drive system of the present invention;

Fig. 5 is a schematic diagram of the front view of the feeding system of the polishing cloth wheel frame of the utility model;

Fig. 6 is a schematic side view of the feeding system of the polishing cloth wheel frame of the utility model;

Fig. 7 is a top view schematic diagram of the protective device of the present invention;

Fig. 8 is a schematic front view of the protective device of the present invention;

Fig. 9 is a schematic side view of the protective device of the present invention;

Among them: 1. Frame, 101. Supporting feet, 102. Polishing machine table, 103. Horizontal adjustment wheel, 2. Main shaft drive system, 201. Transmission motor, 202. Web type small pulley, 203. V-shaped belt, 204 .Orifice plate type large pulley, 205. Secondary gearbox, 206. Elastic coupling, 207. Main shaft, 208. Indexing plate, 209. Pull pin, 210. Three-jaw linkage chuck, 3. Polished cloth wheel frame Feed system, 301. X-axis guide frame, 302. X-axis ball screw nut pair, 303. First servo motor, 304. Y-axis guide rail frame, 305. Y-axis ball screw nut pair, 306. Second servo Motor, 307. Z-axis guide rail frame, 308. hand wheel, 309. rib plate, 310. asynchronous motor bracket, 311. asynchronous motor, 312. angular contact ball bearing, 313. cloth wheel shaft, 314. polishing cloth wheel, 315. Cover body, 316. End cover, 317. Threaded connecting rod, 3171. Rod section with square cross section, 318. Flange joint, 319. Z-axis ball screw nut pair, 320. Bearing seat, 4. Tailstock, 5. Protection device, 501. Spindle box cover, 502. Spindle box door, 503. Upper roller slideway, 504. End face support frame of upper slideway, 505. Desktop roller slideway, 506. Double adjustable pulleys around, 507. Sliding door, 5071. Observation window.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background technology, the current polishing machine is mainly for effect treatment on the surface and pipes of metal products such as steel, aluminum, copper, etc., while the polishing machine designed for plastic products has not been developed on a large scale in China at present. And use, aiming at the above problems, the application proposes a polishing machine and working method for the outer circular surface and end plane of plastic products.

In a typical implementation of the present application, as shown in Figures 1-9, a polishing machine for the outer circular surface and end plane of plastic products includes a frame 1, and the frame includes support feet and is fixed on the top of the support feet 101. Polishing machine table 102, the polishing machine table is welded by Q345 plate, which ensures the strength and rigidity of the polishing machine table, and the bottom of the supporting feet is provided with four horizontal adjustment wheels 103 with locking function, so that the whole table The polishing machine can be moved according to the location requirements. When the working position of the polishing machine is determined, the four horizontal adjustment wheels can be locked, and the wheels will not rotate, so as to ensure that the position of the whole machine will not move during the polishing process. There are a plurality of installation holes on the table of the polishing machine tool, and the main shaft drive system 2, the polishing cloth wheel frame feed system 3, the tailstock 4 and the protection device 5 are installed in the installation holes through bolts. Installation on different mounting holes can meet the processing requirements of workpieces of different specifications.

The main shaft drive system 2 includes a first driving device, the first driving device includes a transmission motor 201, the transmission motor is a three-phase asynchronous drive motor, the power of the motor is about 0.5kw, and the speed range is 90-100r/min. The three-phase asynchronous drive motor is fixed on the table of the polishing machine tool, the output shaft of the three-phase asynchronous drive motor is connected to the web type small pulley 202, and the web type small pulley is connected to the orifice type large pulley through two V-shaped belts 203. The belt pulley 204, the orifice type large pulley transmits power to the secondary gearbox 205, the output shaft of the secondary gearbox is connected to the main shaft 207 through the elastic coupling 206, and the indexing plate 208 is installed on the main shaft, so The indexing plate is connected with the three-jaw linkage chuck 210 through the pulling pin 209. When the indexing plate and the three-jaw linkage chuck are locked by pulling the pin, the main shaft rotates, and the indexing plate and the three-jaw linkage chuck can rotate with the main shaft. To process the outer surface of the workpiece, when the three-phase asynchronous drive motor is in the standby state, that is, when the main shaft is not rotating, pull out the pull pin and manually turn the three-jaw linkage chuck to realize the adjustment of the angle of the three-jaw linkage chuck, and then determine After the adjustment of the plane position of the end face to be polished, lock the pin of the index plate to ensure that the position of the plane to be polished will not change during the polishing process. Polishing, reducing the number of workpiece clamping during the polishing process, reducing the burden on workers and improving processing efficiency.

The polishing cloth rack feeding system 3 includes a three-axis linkage system, and the three-axis linkage system includes an X-axis linear sliding pair, a Y-axis linear sliding pair, and a Z-axis linear sliding pair. The PLC controller is selected for control to realize the linkage of X and Y axes, and to realize the polishing requirements for complex curved and convoluted surfaces. Productivity and workload. The X-axis linear sliding pair includes an X-axis rail frame 301 fixed on the table of the polishing machine tool, and an X-axis ball screw nut pair 302 is installed on the X-axis rail frame, and the ball screw nut pair passes through a plum blossom coupling. Connected with the first servo motor 303, driven by the first servo motor to work, the Y-axis linear sliding pair includes a Y-axis guide rail frame 304 fixed on the moving nut of the X-axis linear sliding pair, on the Y-axis guide rail frame A Y-axis ball screw nut pair 305 is installed, the ball screw nut pair is connected to the second servo motor 306 through a plum blossom coupling, and is driven by the second servo motor to work, and the Z-axis linear sliding pair includes a fixed The Z-axis guide rail frame 307 on the Y-axis linear sliding pair moves the nut, and the Z-axis ball screw nut pair 319 is installed on the Z-axis rail frame, and the Z-axis ball screw nut pair is manually operated by the hand wheel 308 Drive, considering that the height of the polishing surface changes less frequently during the polishing process, the height is adjusted by handwheel, which reduces the design and maintenance costs. In order to improve the structural strength, a rib is set between the Z-axis guide rail frame and the Y-axis guide rail frame 309. The Z-axis guide frame is marked with a scale, which can control the height of the polishing cloth wheel in the Z-axis, the effective stroke is 500mm, and a stop structure is set on the Z-axis linear sliding pair, so that after the moving nut moves to a certain position, Lock it down.

An asynchronous motor support 310 is fixed on the moving nut of the Z-axis linear sliding pair. The asynchronous motor support has a T-shaped structure, and an asynchronous motor 311 is fixed above the T-shaped structure. The asynchronous motor is used as a polishing Motor, under the T-shaped structure, a cloth wheel shaft 313 is fixed through a bearing seat 320 and four angular contact ball bearings 312. The asynchronous motor drives the rotation of the cloth wheel shaft through a belt drive, and a polishing cloth wheel 314 is fixed at the end of the cloth wheel shaft. The cloth wheel shaft adopts a cantilever installation method, so four angular contact ball bearings are set to support the cloth wheel shaft and prevent the axial movement of the cloth wheel shaft during processing.

The polishing cloth wheel is usually made of woolen cloth or fine cotton cloth discs stacked on each other and pressed between the metal sheets. The thickness of the stack is about 3 to 4 cm. The polishing wheel used to improve the gloss generally does not need seams to ensure The softness and shape of the polishing cloth wheel can be changed at any time with the outer surface of the workpiece to be polished, so as to polish the arc and chamfering position on the outer surface of the workpiece. If a harder buff is desired, it can be stitched with thread. According to the requirements of hardness, the stitches can be 3-6 mm. The polishing wheel with dense stitches is harder and can polish some plastic products with heavy scratches. The diameter of the polishing wheel is generally not greater than 300 mm. If the plastic products to be polished are outside If the glossiness of the round surface is high, you need to use a particularly soft polishing wheel with a diameter of less than 250 mm, and you can use cotton yarn or cloth strips to make a disc. When processing thermoplastic products, the rotational speed of the polishing wheel should not exceed the line speed of 1200m/min, while for processing thermosetting plastic products, the line speed of the polishing wheel should generally be controlled within a reasonable range of 1200-1800m/min.

During the polishing process, in order to ensure the polishing quality and the personal safety of the operators, it is considered to install a cloth wheel protective cover on the outside of the polishing cloth wheel. It is necessary to prevent the cloth wheel itself from being broken when it is subjected to polishing impact and vibration due to quality problems. The cloth wheel protective cover includes a cover body 315, and the cover body is detachably connected with an end cover 316 by bolts. The cover body is welded by A3 steel plates. For the convenience of changing the polishing cloth wheel, the end cover is set to be Detachable type, under the premise of not dismantling the whole protective cover, the polishing cloth wheel can be replaced by removing the end cover of the cloth wheel protective cover, which is faster and more convenient. The cloth wheel protective cover is fixedly connected to the asynchronous motor bracket through three threaded connecting rods 317, one end of the threaded connecting rod is fastened on the asynchronous motor bracket through a threaded structure, and the other end is connected to the cover body through a threaded structure, and a nut For fastening, the threaded connecting rod is provided with a section 3171 with a square section, which is convenient to use a wrench to tighten the threaded connecting rod on the asynchronous motor bracket.

In order to ensure a certain strength and rigidity at the joint between the side of the cover body and the threaded connecting rod through a nut, a steel plate with a thickness of 3 mm is selected. Considering the material of the polishing cloth wheel and the material to be polished is plastic, the flying debris generated during the polishing process is mainly in the form of powder , The force exerted on the surrounding objects during splashing is small, so the steel plate of other parts of the cover body is selected to be a thin steel plate with a thickness of 1mm.

The cover body is connected with an exhaust pipeline through a flange joint 318, and the exhaust pipeline is connected with the exhaust fan to form an exhaust cooling device. During the processing, the air flow in the processing area is accelerated by the action of the exhaust fan. Enhance the heat dissipation performance of the polishing machine to avoid surface burns or even damage to the workpiece due to overheating during the polishing process. At the same time, the grinding debris and damaged cloth are drawn out to clean the processing space to ensure that the polishing process can continue. The exhaust fan and the hopper for receiving abrasive debris and damaged cloth are installed under the table of the polishing machine tool, so that the overall structure of the machine tool is more compact.

The protective device 5 includes a headstock cover 501 fixed on the table of the polishing machine tool, and a headstock door 502 is installed on the headstock cover, and the headstock cover and the headstock door protect the spindle transmission system to a certain extent. Protect the transmission parts of the machine tool, prevent the interference of plastic abrasives, damaged cloth and dust generated during the polishing process, avoid the accelerated aging of the belt exposed to the working environment for a long time, and at the same time, prevent workers from accidentally touching high-speed rotating parts such as pulleys during operation The upper end of the headstock cover is fixed with one end of the upper roller slideway 503, the other end of the upper roller slideway is fixed with an upper slideway end support frame 504, and the upper slideway end surface support frame is fixed on the table of the polishing machine tool , used to support the upper roller slideway, the tabletop roller slideway 505 is fixed on the polishing machine table, and a sliding door is slidably connected between the upper roller slideway and the desktop roller slideway through the surrounding adjustable double pulleys 506 507, which can prevent plastic abrasive debris and damaged cloth from flying out during the polishing process. When it is necessary to replace the workpiece or adjust the end plane to be polished, move the sliding door horizontally to the position of the tailstock body, which is convenient for the operator to operate. At the same time, there is a Observation window 5071, the observation window is equipped with toughened glass, which is convenient for operators to observe the workpiece to be polished in real time during the polishing process.

The tailstock is slidably connected to the polishing machine table through the tailstock body guide rail, and the tailstock is an important part of the machine tool for processing rotary workpieces, and mainly cooperates with the chuck to support and center the workpieces. The center height of the tailstock, the top position and the structural form of the joint surface with the worktable (bed) are the same as the headstock, but the tailstock also has its own characteristics: the tailstock structure of the general cylindrical grinder is relatively simple, and the tailstock sleeve The cylinder can move axially but does not rotate, and its overall dimensions are much smaller than the head frame. The structural design of the tailstock is very mature at present. In the design and production of machine tools, the tailstock has tended to be integrated and modularized. There are various finished tailstocks with different center heights on the market. Considering the cost and precision, the tailstock The body is not designed separately. This utility model uses a small quick-release tailstock model CN0620. The height of the tailstock can be installed on the bed table or the base as required, so that the tailstock thimble and the center line of the three-jaw linkage chuck stay on the same level.

The utility model also discloses a working method of a plastic product outer circular surface and end plane polishing machine, which includes the following steps:

Step 1: Install the workpiece on the three-jaw linkage chuck, feed the tailstock, clamp and center the workpiece.

Step 2: Manually turn the hand wheel to make the polishing cloth wheel reach the required processing height in the Z-axis direction.

Step 3: Start the three-phase asynchronous drive motor, the main shaft drives the three-jaw linkage chuck and the workpiece to rotate at a low speed, the speed range is 90-100r/min, start the asynchronous motor and the three-axis linkage system, the polishing cloth wheel rotates, and polish the outer circular end surface of the workpiece For processing, through the PLC control program, the polishing cloth wheel is linked in the X-axis and Y-axis directions to polish the complex outer circular surface of the workpiece.

Step 4: Stop the three-phase asynchronous drive motor, retract the tailstock, pull out the pull pin of the index plate, adjust the angle of the three-jaw linkage chuck, adjust the position of the end face of the workpiece to be polished, lock the pull pin, start the asynchronous motor, and use a polishing cloth The end face of the wheel is polished against the end face of the workpiece.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (9)

1. A polishing machine for the outer circular surface and end plane of plastic products, characterized in that it includes a frame and a main shaft drive system detachably connected to the frame, a polishing cloth wheel frame feed system, a tailstock and a protective device; Adjustment wheels are installed at the bottom of the frame, which is convenient to move, and multi-position mounting holes are provided on the frame, which is convenient for the position adjustment of the main shaft drive system, the feeding system of the polishing cloth wheel frame, and the tailstock; The main shaft transmission system includes a main shaft, on which an indexing plate is installed, and the indexing plate is connected with the chuck through a pull pin, and the main shaft is driven by the first driving device to rotate, and through the locking and pulling out of the pulling pin The state realizes the switching between the chuck rotating with the spindle and the chuck manually rotating; The feeding system of the polishing cloth wheel frame includes a support and a second driving device fixed on the support, the second driving device is connected with the polishing cloth wheel, and the polishing cloth wheel is driven to rotate by the second driving device, and the support and the polishing cloth wheel are connected to each other. The three-axis linkage system is connected, and the three-axis linkage system drives the movement of the bracket in three directions to meet the polishing requirements for the complex curved surface. The side of the polishing cloth wheel is equipped with a split cloth wheel that is detachably connected to the bracket. The protective cover prevents the waste of the polishing material from splashing during the polishing process. At the same time, it can prevent the cloth wheel itself from being broken due to the impact and vibration of polishing due to quality problems. The cloth wheel protective cover is connected with the exhaust cooling device. The polishing cloth wheel and workpiece dissipate heat, and at the same time extract abrasive debris and damaged cloth; The tailstock cooperates with the chuck of the main shaft drive system to clamp the two ends of the workpiece, supporting and centering the workpiece; The protection device is used to ensure the personal safety of the operating workers during the processing and protect the important parts of the polishing machine. 2. A kind of plastic product cylindrical surface and end plane polishing machine as claimed in claim 1, it is characterized in that, described first driving device comprises transmission motor, and described transmission motor transmits power to gearbox through belt transmission, The gearbox output shaft outputs power to the main shaft. 3. A kind of polishing machine for outer circular surface and end plane of plastic products as claimed in claim 1, characterized in that, the three-axis linkage system includes an X-axis linear sliding pair fixed on the frame, and the X-axis A Y-axis linear sliding pair is connected to the linear sliding pair, the X-axis linear sliding pair drives the Y-axis linear sliding pair to move along the X-axis, and the Y-axis linear sliding pair is connected to the Z-axis linear sliding pair , drive the Z-axis linear sliding pair to move along the Y-axis, the Z-axis linear sliding pair is connected to the bracket, and drives the bracket to move along the Z-axis. 4. A polishing machine for the outer circular surface and end plane of plastic products as claimed in claim 3, wherein the X-axis linear sliding pair and the Y-axis linear sliding pair are driven by electric motors, and the Z-axis linear sliding pair The vice is manually driven through the handwheel. 5. A kind of plastic product cylindrical surface and end plane polishing machine as claimed in claim 1, it is characterized in that, described second driving device comprises polishing motor, and described polishing motor drives the rotation of cloth wheel axle by belt rotation, so The polishing cloth wheel is fixed on the cloth wheel shaft, and the cloth wheel shaft is installed on the support through four angular contact ball bearings. 6. A kind of polishing machine for outer circular surface and end plane of plastic products as claimed in claim 1, characterized in that, the cloth wheel protective cover is threaded on the bracket through a threaded connecting rod, including a cover body and a cover body that can be connected with the cover body. Disassemble the connected end cover. With this split structure, the polishing cloth wheel can be replaced by removing the end cover without dismantling the protective cover of the cloth wheel as a whole. 7. A kind of polishing machine for the outer circular surface and end plane of plastic products as claimed in claim 6, characterized in that, one end of the threaded connecting rod compresses the cloth wheel protective cover through a nut, and the other end is provided with a section with a section of The rectangular rod section is convenient to cooperate with the wrench to tighten the threaded connecting rod on the bracket. 8. A kind of plastic product outer circle surface and end plane polishing machine as claimed in claim 1, it is characterized in that, described exhaust cooling device comprises exhaust fan pipeline and the exhaust fan that is connected with exhaust fan pipeline, and described exhaust fan The machine pipeline is connected with the protective cover of the cloth wheel. During the processing, the air flow in the processing area is accelerated, the heat dissipation performance of the polishing machine is enhanced, and the surface of the polished workpiece is prevented from being burnt or even damaged due to overheating during the process. At the same time, the abrasive debris and damaged cloth are removed Pull out to clean the processing space and ensure that the polishing process can continue. 9. A polishing machine for the outer circular surface and end plane of plastic products as claimed in claim 1, wherein the protective device includes a spindle box cover for covering the spindle transmission system and protecting the components of the spindle transmission system , the spindle box cover is provided with a spindle box door, one side of the spindle box cover is provided with an upper roller slideway and a desktop roller slideway, one end of the upper roller slideway is fixed on the upper end of the spindle box cover, and the other end Supported on the frame by the end surface support frame of the upper slideway, a sliding door that can slide along the upper roller slideway and the desktop roller slideway is set between the upper roller slideway and the desktop roller slideway, which is used in the processing process to prevent Plastic abrasive chips and damaged cloth fly out, and the sliding door is provided with an observation window, which is convenient for the operator to observe the workpiece during the polishing process.