CN207289742U - Grinding device for grinding machine without dead angle and continuous processing - Google Patents

Abstract

The utility model discloses a grinding device for a grinding machine of incessant processing in no dead angle, including on grinding mechanism and the work piece fixed establishment, grinding mechanism carry out the physics to the part of placing on the work piece fixed establishment and polish, grinding mechanism include slide, rotating housing, casing rotation drive arrangement, abrasive disc drive arrangement and a plurality of abrasive disc, the piece of polishing install in rotating housing surface, the both ends of rotating housing rotate install in the slide, casing rotation drive arrangement installs the one end at rotating housing, abrasive disc drive arrangement and abrasive disc drive realize high frequency straight reciprocating motion; the utility model can adjust the angle of the polishing sheet, and realize polishing without dead angles; drive the rotation that the platform was placed to the work piece through worm gear drive mechanism, for rack and pinion drive mechanism, the utility model discloses can realize five incessant rotations of equidirectional of placing the platform.

Description

Grinding device for grinding machine without dead angle and continuous processing

technical field

The utility model relates to the technical field of machine tools, in particular to a grinding device for a grinding machine for continuous processing without dead ends.

Background technique

The processing of existing industrial products, such as metal or non-metallic engraving, drilling with a diameter of less than 3mm, grinding and polishing of the surface of metal mobile phone cases, etc., is generally processed by five-axis machine tools. The existing five-axis machine tools include racks, X Axis slide table, Y-axis slide table, Z-axis lifting table, A-axis turntable and C-axis swing arm; the A-axis turntable is installed on the X-axis slide table, and the A-axis turntable acts in the X-axis direction through the action of the X-axis slide table Translation: the X-axis slide table is installed on the Y-axis slide table, the X-axis slide table translates in the Y-axis direction through the action of the Y-axis slide table, and the Y-axis slide table is fixedly installed on the frame; The C-axis swing arm is installed on the Z-axis lift platform, and the C-axis swing arm moves up and down in the Z-axis direction through the action of the Z-axis lift platform; the A-axis turntable includes a plurality of rotating spindles that rotate simultaneously, and each rotates The top of the main shaft is fixed with a workpiece placement table for absorbing workpieces; the C-axis swing arm includes a swing arm fixing frame, a swing arm body and at least the same number of processing devices as the rotating main shaft, and the two ends of the swing arm body are rotated and installed On the swing arm fixing frame, the processing device is installed on the swing arm body, and multiple processing devices are used to process multiple workpieces at the same time";

Therefore, in the above-mentioned patent, only the up-and-down movement of the grinding sheet on the C-axis swing arm can be realized. In addition, the workpiece placement table is driven to rotate by the rack and pinion, and can only rotate in one direction, and there will be interruptions in the rotation process.

Utility model content

The utility model aims to provide a grinding device for grinding machines that can adjust the angle of the grinding sheet, realize grinding without dead angles, and realize uninterrupted rotation of the placing table in the same direction.

In order to achieve the above purpose, the utility model provides the following technical solutions: a grinding device for a grinding machine for continuous processing without dead ends, including a grinding mechanism and a workpiece fixing mechanism, and the workpiece fixing mechanism includes a fixing mechanism box, a transmission box body, a rotary transmission mechanism and a workpiece placement table, a transmission box body is arranged in the fixed mechanism box body, and several rotary transmission mechanisms are arranged in the transmission box body. The bottom of the rotating shaft of the table is connected to the worm gear, and the worm gear and the worm are meshed. The worms of the two adjacent rotating transmission mechanisms are connected by connecting bearings. The worm at one end of the transmission box is connected to the output shaft of the workpiece rotating motor through a coupling. It is on the top of the rotating shaft and rotates with the rotary transmission mechanism to realize the 360° rotation of the parts placed on the workpiece placement table; the grinding mechanism physically grinds the parts placed on the workpiece fixing mechanism, and the grinding mechanism includes Sliding seat, rotating housing, housing rotation driving device, grinding disc driving device and several grinding discs, the described grinding discs are installed on the surface of the rotating housing, and the two ends of the rotating housing are rotatably installed on the slide On the seat, the housing rotation driving device is installed at one end of the rotating housing, and is used to drive the rotating housing to rotate to realize the angle adjustment of the rotating housing; reciprocating motion.

As a further solution of the present utility model: the grinding disc driving device includes a grinding disc rotation motor, a main transmission shaft, a reduction box and a cam mechanism, the output shaft of the grinding disc rotation motor is connected with the main transmission shaft, and the deceleration The box is connected with the main transmission shaft, the cam mechanism is connected with the reduction box through the connecting shaft, the grinding sheet is connected with the cam mechanism, and the cam mechanism includes a driving disc, a transmission cam and a driven disc, and the center of the driving disc Fixed on the connecting shaft, the center of the driving disc is connected to the center of the transmission cam, the eccentric hole of the transmission cam is connected to the driven disc through the rotating shaft, and the driven disc is fixedly connected to the grinding sheet.

As a further solution of the present invention: the center of the rotating shaft of the placing table is provided with a through hole, the end of the rotating shaft of the placing table is connected to a vacuum pipeline through a rotary joint, and the vacuum pipeline is connected to a vacuum pump. Vacuuming is carried out by connecting a vacuum pump to achieve stable fixation of the workpiece. The end of the rotating shaft of the placing table of the existing machine tool is connected to the vacuum pipeline through various oil seals. When the shaft rotates in the same direction or in the opposite direction, the oil seal is easily damaged during the long-term rotation. Therefore, the utility model uses a rotary joint for connection to prolong the life of the rotary joint and prevent air leakage from affecting the adsorption effect of the workpiece.

As a further solution of the present utility model: the sliding seat further includes an intermediate shaft, and the intermediate shaft is used to connect the casing rotation driving device and the main transmission shaft.

As a further solution of the present utility model: the intermediate shaft is connected to the sliding seat through a bearing.

As a further solution of the present utility model: the end of the main transmission shaft close to the rotating motor of the grinding sheet is connected to the sliding seat through a bearing.

As a further solution of the present utility model: the reduction box is a worm gear transmission mechanism or a bevel gear transmission mechanism.

Compared with the prior art, the beneficial effect of the utility model is: the utility model can realize the uninterrupted 360-degree rotation of five placing tables in the same direction, and cooperate with the high-frequency reciprocating linear motion grinding disc of the grinding mechanism to perform physical work on the surface of the parts Grinding, high output, excellent results. In particular, the utility model is designed with a hollow structure of the rotating shaft of the placing table, which is vacuumed by connecting with a vacuum pump to achieve stable fixation of the workpiece.

Description of drawings

Fig. 1 is the schematic diagram of the complete machine of a grinding device for a grinding machine for continuous processing without dead ends according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a grinding device for a grinding machine for continuous processing without dead ends according to an embodiment of the present invention;

Fig. 3 is the structural representation of the frame of an embodiment of the utility model;

Fig. 4 is the sectional view of the frame of an embodiment of the present utility model;

Fig. 5 is an overall schematic diagram of a grinding mechanism and a sliding seat of an embodiment of the present invention;

Fig. 6 is a top view of a grinding mechanism and a sliding seat of an embodiment of the present invention;

Fig. 7 is a front view of a grinding mechanism and a sliding seat according to an embodiment of the present invention;

Fig. 8 is an overall schematic diagram of a grinding mechanism according to an embodiment of the present invention;

Fig. 9 is a schematic diagram of the internal structure of a grinding mechanism according to an embodiment of the present invention;

Fig. 10 is a schematic diagram of the connection structure of a stepless speed regulating motor according to an embodiment of the present invention;

Fig. 11 is a structural schematic diagram of a cam mechanism according to an embodiment of the present invention;

Fig. 12 is a cross-sectional view of a cam mechanism according to an embodiment of the present invention;

Fig. 13 is an overall schematic diagram of a workpiece fixing mechanism according to an embodiment of the present invention;

Fig. 14 is a top view of a workpiece fixing mechanism according to an embodiment of the present invention;

Fig. 15 is a schematic structural view of a transmission box according to an embodiment of the present invention;

Fig. 16 is a schematic diagram of the internal structure of the transmission box according to an embodiment of the present invention.

Notes: 1. Grinding mechanism; 2. Workpiece fixing mechanism; 3. Rotating shell; 4. Grinding sheet; 5. Main drive shaft; 6. Drive disc; 7. Drive cam; 8. Driven disc; 10. Intermediate shaft; 11. Housing rotation drive device; 12. Fixing mechanism box; 13. Transmission box; 14. Placement table rotation shaft; 15. Worm wheel; 16. Worm; ; 18. Workpiece placement platform; 19. Rotary joint; 20. Connecting bearing; 101. Sliding seat; 102. Ram.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In an embodiment of the utility model, a grinding device for a grinding machine for continuous processing without dead angles includes a grinding mechanism and a workpiece fixing mechanism. The workpiece fixing mechanism includes a fixing mechanism box, a transmission box, a rotating transmission mechanism and The workpiece placement table, the fixed mechanism box is provided with a transmission box body, and several rotation transmission mechanisms are arranged in the transmission box body. The rotation transmission mechanism includes the rotation shaft of the placement table, the worm wheel and the worm, and the bottom of the rotation shaft of the placement table is connected The worm gear, the worm gear and the worm are meshed, and the worms of two adjacent rotating transmission mechanisms are connected by connecting bearings. The worm at one end of the transmission box is connected to the output shaft of the workpiece rotating motor through a coupling. The rotation of the rotating transmission mechanism realizes the 360° rotation of the parts placed on the workpiece placement table; the described grinding mechanism physically polishes the parts placed on the workpiece fixing mechanism, and the described grinding mechanism includes a sliding seat, a rotating housing , a casing rotation drive device, a grinding disc drive device and several grinding discs, the grinding discs are installed on the surface of the rotating housing, the two ends of the rotating housing are rotatably mounted on the sliding seat, and the housing The body rotation driving device is installed at one end of the rotating housing, and is used to drive the rotating housing to rotate to realize the angle adjustment of the rotating housing; the grinding disc driving device and the grinding disc drive the grinding disc to realize high-frequency linear reciprocating motion.

Please refer to Figure 1-16, which is a specific embodiment of the utility model applied on a grinding machine. In this embodiment, there is a grinding machine, and the grinding machine includes a frame, a lifting mechanism, a grinding mechanism 1, a lateral movement mechanism and a workpiece The fixing mechanism 2, the lifting mechanism and the lateral moving mechanism are fixed on the frame, the lifting mechanism drives the grinding mechanism 1 to move up and down relative to the workpiece fixing mechanism 2, and the described lateral moving mechanism drives the workpiece fixing mechanism 2 relative to The grinding mechanism 1 moves back and forth, the workpiece fixing mechanism 2 realizes the rotation of the parts by 360°, the described grinding mechanism 1 physically grinds the parts placed on the workpiece fixing mechanism 2, and the described grinding mechanism 1 includes a sliding seat 101 , a rotating housing 3, a housing rotation driving device, a grinding disc driving device and several grinding discs 4. In this embodiment, the sliding seat is a U-shaped arm, and the grinding discs 4 are mounted on the rotating housing 3 On the surface, the cross-section of the rotating housing 3 can be square, hexagonal or other polygonal, and the rotating housing 3 is selected according to the requirements of the grinding process, and the two ends of the rotating housing 3 are rotatably mounted on the sliding seat 101 , the housing rotation driving device 11 is installed on one end of the rotating housing 3, and is used to drive the rotating housing to rotate to realize the angle adjustment of the rotating housing 3; High-frequency linear reciprocating motion.

As a further solution of the present utility model: the grinding disc driving device includes a grinding disc rotating motor 9, a main transmission shaft 5, a reduction box and a cam mechanism, and the output shaft of the grinding disc rotating motor 9 is connected with the main transmission shaft 5, The reduction box is connected with the main transmission shaft 5, the cam mechanism is connected with the reduction box through a connecting shaft, and the grinding sheet 4 is connected with the cam mechanism.

As a further solution of the utility model: the cam mechanism includes a driving disc 6, a transmission cam 7 and a driven disc 8, the center of the driving disc 6 is fixed on the connecting shaft, the center of the driving disc 6 is connected to the center of the transmission cam 7, and the transmission The eccentric hole of the cam 7 is connected with the driven disk 8 through the rotating shaft, and the driven disk 8 is fixedly connected with the grinding sheet 4 . In the prior art, there are many ways to achieve linear reciprocating motion, such as hydraulic servo actuators, linear motors, servo electric cylinders, crank slider mechanisms, etc. Secondly, water and abrasives enter these actuators during grinding, which can easily lead to corrosion and damage, therefore, the utility model adopts the principle of the cam mechanism, converts the rotary motion into a linear motion, realizes small load work, and can complete various mobile phone metal polishing and wire drawing processes.

As a further solution of the utility model: the workpiece fixing mechanism 2 includes a fixing mechanism casing 12, a transmission casing 13, a rotary transmission mechanism and a workpiece placement platform 18, and the bottom of the fixing mechanism casing 12 is installed on the ram 102, The bottom of the ram 102 is installed on the slide rail of the frame, the ram 102 is connected to the lateral movement mechanism, the fixed mechanism box 12 is provided with a transmission box 13, and the transmission box 13 is provided with several rotary transmission mechanisms, and the workpiece is placed The table 18 is arranged on the top of the rotary transmission mechanism and rotates with the rotary transmission mechanism, so that the parts can be rotated by 360°, and the polishing sheet 4 can perform mechanical and physical grinding on the workpiece. In this embodiment, the workpiece fixing mechanism is provided with five workpiece placement platforms 18 and five rotating transmission mechanisms, which are individually set according to the parts to be processed.

As a further solution of the utility model: the rotary transmission mechanism includes a placing table rotating shaft 14, a worm wheel 15 and a worm screw 16, the bottom of the placing table rotating shaft 14 is connected to the worm wheel 15, and the worm wheel 15 is meshed with the worm screw 16, and two adjacent rotating drives The worms 16 of the mechanism are connected by connecting bearings 20, and the worm 16 at one end of the transmission box 13 is connected to the output shaft of the workpiece rotating motor 17 through a coupling. The transmission box body 13 is provided with five rotating transmission mechanisms. The workpiece rotating motor 17 drives the worm 16 to rotate clockwise. The worm 16 drives the worm wheel 15 to rotate clockwise. Carry out 360 degree rotations along with placing table rotating shaft 14, when workpiece rotating motor 17 starts, five rotating transmission mechanisms can simultaneously rotate in the same direction (clockwise or counterclockwise).

As a further solution of the present invention: the center of the rotating shaft 14 of the placing table is provided with a through hole, and the end of the rotating shaft 14 of the placing table is connected to a vacuum pipeline through a rotary joint 19, and the vacuum pipeline is connected to a vacuum pump. Vacuuming is carried out by connecting a vacuum pump to achieve stable fixation of the workpiece. The end of the rotating shaft 14 of the placement table of the existing machine tool is connected to the vacuum pipeline through various oil seals. When the rotary shaft 14 of the table rotates in the same direction or in the opposite direction, the oil seal is easily damaged during the long-term rotation. Therefore, the utility model adopts the rotary joint 19 for connection, prolongs the life of the rotary joint 19, and prevents air leakage from affecting the adsorption effect of the workpiece.

As a further solution of the present invention: the sliding seat 101 further includes an intermediate shaft 10 for connecting the housing rotation driving device and the main transmission shaft 5 .

As a further solution of the present invention: the intermediate shaft 10 is connected to the sliding seat 101 through a bearing.

As a further solution of the present invention: the end of the main drive shaft 5 close to the grinding sheet rotating motor 9 is connected to the sliding seat 101 through a bearing.

As a further solution of the utility model: the lifting mechanism includes a lifting screw pair 103 and a traction mechanism, the lifting screw pair 103 is connected to the lifting screw motor, the screw nut of the lifting screw pair 103 is connected to the grinding shell 3, and the grinding shell 3 The rear side of the frame 100 is installed on the lifting slide rail vertically arranged, and the top of the grinding housing 3 is connected to the traction belt 104 of the traction mechanism, and the traction belt 104 is connected to the traction belt reel on the traction motor main shaft after bypassing the traction pulley superior.

As a further solution of the present invention: the lateral movement mechanism includes a lateral screw pair 105 , and the screw nut of the lateral screw pair 105 is connected to the ram 102 .

As a further solution of the utility model: the reduction box is a worm gear transmission mechanism or a bevel gear transmission mechanism.

As a further solution of the present utility model: a machine cover 200 is provided on the outside of the grinding device for a grinding machine for continuous processing without dead ends.

In this embodiment, the grinding sheet rotating motor 9 or the grinding sheet driving device or the workpiece rotating motor 17 is a motor. Further, the motor is a variable frequency motor, but it should be noted that the driving device can also be of other structures , such as servo motors, linear motors, stepless speed regulation motors, etc. In addition, the motors are controlled by a controller to realize multi-axis linkage control. Therefore, the utility model solves the problem of the consistency of the synchronization of the grinding mechanism and the workpiece fixing mechanism.

Structural features and working principle of the utility model: when working, the parts are respectively vacuum-adsorbed on the workpiece fixing mechanism, and the parts rotate in the same direction with the workpiece fixing mechanism, and the lifting mechanism and the lateral moving mechanism respectively drive the sliding seat 101 to lift and the ram The translation of 102 further drives the lifting of the grinding mechanism 1 and the translation of the workpiece fixing mechanism 2;

For the grinding mechanism 1, the grinding piece rotation motor 9 drives the main transmission shaft 5 to rotate, drives the cam mechanism through the cross-axis transmission mechanism, and drives the four-sided grinding piece 4 to perform uninterrupted high-frequency reciprocating linear motion through the cam mechanism to polish the horizontal surface of the part After the horizontal surface of the part is polished, the housing rotation drive device 11 drives the entire grinding mechanism 1 to rotate through the intermediate shaft 10, adjusts the angle of the grinding sheet 4, and grinds the four sides and corners of the part to achieve grinding without dead ends; After one process is completed, the rotating shell rotates, and the grinding plate on the adjacent side of the rotating shell completes the second process. In this way, five identical workpieces can be clamped at one time to complete multiple processes continuously.

The utility model adopts the above-mentioned structure, the high-frequency linear reciprocating motion of the grinding piece performs mechanical and physical grinding on the workpiece, the rotating shell can rotate from 0 to 360 degrees, and can be processed continuously at any angle, which changes the traditional pneumatic or electric rotating grinding piece to perform mechanical and physical grinding on the workpiece. The grinding method of mechanical physical grinding; the rotating shell is a cuboid structure or a hexagonal structure or any polygonal structure, and each surface is equipped with a grinding sheet, which can simultaneously polish and brush five identical workpieces. One side of the grinding piece completes a grinding process, so it can realize the continuous completion of multiple processes, and the production efficiency and product quality are greatly improved; in addition, the utility model has a compact structure, is easy to make waterproof, easy to achieve lubrication, reliable and durable; thus Compared with other linear reciprocating motion mechanisms, it has obvious advantages, such as small vibration, fast speed, low noise, and long service life; for the workpiece fixing mechanism 2, the rotating motor drives five worm gears. Drive the rotation of the five placing table rotating shafts 14 and the workpiece placing table 18 provided on the placing table rotating shaft 14. Compared with the rack and pinion transmission mechanism, the utility model can realize the uninterrupted 360-degree rotation of the five placing tables in the same direction. Rotate, cooperate with the high-frequency reciprocating linear motion grinding disc of the grinding mechanism to perform physical work on the surface of the part, with large output and excellent effect. In particular, the utility model designs the rotating shaft 14 of the placing table with a hollow structure, which is vacuumed by connecting with a vacuum pump, so as to realize stable fixing of the workpiece.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. a kind of sanding apparatus for the grinding machine uninterruptedly processed for no dead angle, including workpiece polishing mechanism and workpiece fixed mechanism, its It is characterized in that,

The workpiece fixed mechanism includes fixed mechanism babinet, transmission case body, rotating actuator and workpiece placement station, fixed Transmission case body is equipped with mechanism case body, several rotating actuators, the rotating actuator bag are equipped with transmission case body Include mounting table rotation axis, worm gear and worm screw, the bottom connection worm gear of mounting table rotation axis, worm gear and worm engaging, adjacent two rotation Turn to connect by connecting bearing between the worm screw of transmission mechanism, the worm screw of transmission case body one end connects workpiece by shaft coupling and rotates The output shaft of motor, workpiece placement station are arranged on rotation axis top and as rotating actuator rotate, and realization is placed on workpiece and puts Put the rotation of 360 ° of part on platform；

The workpiece polishing mechanism carries out physics polishing to the part being placed on workpiece fixed mechanism, and the workpiece polishing mechanism includes Slide, rotation housing, housing into rotation driving device, grinding driving device and several grinding disc, grinding disc installation In rotation surface of shell, the both ends rotational installation of the rotation housing is on the slide, the housing into rotation driving device Installed in one end of rotation housing, for driving rotation housing into rotation to realize the angle adjustment of rotation housing；The grinding driving Device is connected with grinding disc, and driving grinding disc realizes straight reciprocating motion.

A kind of 2. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 1, it is characterised in that The grinding driving device includes grinding disc rotary electric machine, final drive shaft, reduction box and cam mechanism, and the grinding disc turns Dynamic motor output shaft is connected with final drive shaft, and the reduction box is connected with final drive shaft, and the cam mechanism passes through connection Axis is connected with reduction box, and the grinding disc is connected with cam mechanism, the cam mechanism include driving disc spacing pressing, driving cam and Clutch plate, the center of driving disc spacing pressing are fixed in connecting shaft, and active disk center connects the center of driving cam, the bias of driving cam Hole connects clutch plate by shaft, and clutch plate is fixedly connected with grinding disc.

A kind of 3. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 1, it is characterised in that The mounting table rotating shaft center is equipped with through hole, and mounting table rotates the tip of the axis and connects vacuum pipe by swivel joint, very Vacant duct connects vacuum pump, is vacuumized by connecting vacuum pump, realizes the firm fixation to workpiece.

A kind of 4. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 1, it is characterised in that The slide further includes a jackshaft, and the jackshaft is used to connect the housing into rotation driving device and final drive shaft.

A kind of 5. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 4, it is characterised in that The jackshaft connects slide by bearing.

A kind of 6. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 2, it is characterised in that The final drive shaft connects slide close to one end of grinding disc rotary electric machine by bearing.

A kind of 7. sanding apparatus of grinding machine uninterruptedly processed for no dead angle according to claim 2, it is characterised in that The reduction box is Worm and worm-wheel gearing or bevel gear transmission.