A special vertical machine for spherical grinding

Abstract

The present invention relates to a special vertical machine for spherical grinding. The special vertical machine includes a ball head, a ball head rotating mechanism, an extension rod upper and lower mechanism and a grinding cylinder rotating mechanism; the extension rod upper and lower mechanism includes a connecting seat, an extension rod, a sliding guide rod, a single-acting cylinder, a cylinder mounting seat and a fixed guide sleeve; the ball head rotating mechanism includes a disc motor mounting bracket, a worm gear box mounting seat, a transmission sprocket, a rotating connecting seat, a worm sprocket, a disc motor sprocket, a worm sprocket, a worm core shaft, a worm, a worm gear box, a worm wheel and a disc motor; the grinding cylinder rotating mechanism includes a reduction motor mounting bracket, a reduction motor, a three-jaw chuck, a grinding cylinder, a spherical pressure cover, a ball head seat, a chuck connecting core shaft, a plane bearing and a three-jaw chuck mounting seat. The present invention increases the contact area of ​​the spherical surface, performs rough, semi-fine and fine grinding on the spherical surface, and is also conducive to improving the roughness and contact area of ​​the spherical surface.

Description

Technical Field

[0001] The invention relates to a spherical grinding machine, in particular to a vertical spherical grinding machine. Background Art

[0002] The existing traditional spherical horizontal grinding machines have disadvantages such as slow grinding speed, cumbersome clamping and poor grinding effect. The ball head is one of the key parts of the press and an important connecting component between the crankshaft and the slider. The surface roughness and spherical coincidence of the ball head, ball head seat and spherical cover play an important role in ensuring the stamping accuracy of the press. Summary of the invention

[0003] The purpose of the present invention is to provide a vertical special machine for spherical grinding to solve the problems in the prior art.

[0004] The technical solution of the present invention is: a vertical special machine for spherical grinding, the vertical special machine comprises a ball head, a ball head rotating mechanism, an extension rod up and down mechanism and a grinding cylinder rotating mechanism;

[0005] The extending rod upper and lower mechanism comprises a connecting seat, an extending rod, a sliding guide rod, a single-acting cylinder, a cylinder mounting seat and a fixed guide sleeve;

[0006] The ball head is fixedly connected to the lower end of the connecting seat, the extension rod is fixedly connected to the upper end of the connecting seat, the upper end of the extension rod is connected to the sliding guide rod, the upper end of the sliding guide rod is connected to the single-acting cylinder through the rotating connecting seat, and the single-acting cylinder is fixedly arranged on the cylinder mounting seat;

[0007] The ball head rotating mechanism comprises a disc motor mounting bracket, a worm gear box mounting seat, a transmission sprocket, a rotating connecting seat, a worm sprocket, a disc motor sprocket, a worm sprocket, a worm shaft, a worm, a worm gear box, a worm wheel and a disc motor;

[0008] The disc motor mounting bracket is arranged on one side of the upper and lower mechanisms of the extension rod, the worm gear box mounting seat is arranged above the disc motor mounting bracket, the rotating connection seat is connected to the outside of the sliding guide rod, the disc motor is arranged in the disc motor mounting bracket, the worm gear box is arranged on the worm gear box mounting seat, the worm wheel, worm and worm wheel mandrel are respectively arranged in the worm gear box, the upper end of the worm wheel mandrel is connected to the worm wheel sprocket, the transmission sprocket is connected to the outside of the fixed guide sleeve, the transmission sprocket is connected to the worm wheel sprocket through a chain, the disc motor sprocket is connected to the output shaft of the disc motor, the disc motor sprocket is connected to the large worm sprocket through a chain, and the large worm sprocket is connected to the worm in the worm gear box;

[0009] The grinding cylinder rotating mechanism comprises a reduction motor mounting bracket, a reduction motor, a three-jaw chuck, a grinding cylinder, a spherical pressure cover, a ball head seat, a chuck connecting mandrel, a plane bearing, and a three-jaw chuck mounting seat;

[0010] The reduction motor is arranged on the reduction motor mounting bracket, the three-jaw chuck mounting seat is arranged on the upper end of the reduction motor mounting bracket, the three-jaw chuck is connected to the three-jaw chuck mounting seat, the grinding cylinder is arranged on the three-jaw chuck and clamped by the three-jaw chuck, the ball head seat is fixedly arranged in the grinding cylinder, the spherical pressure cover is fixedly arranged at the mouth of the grinding cylinder, and the ball head is arranged in the grinding cylinder.

[0011] Furthermore, a protective cover is provided on the outer side of the three-jaw chuck mounting seat.

[0012] Furthermore, the fixed guide sleeve is arranged outside the sliding guide rod.

[0013] Furthermore, the ball head rotating mechanism also includes a tensioning wheel mechanism, and the tensioning wheel mechanism adjusts the tension of the chain between the disc motor sprocket and the worm sprocket.

[0014] Furthermore, the chuck connecting core shaft is connected to the output shaft of the reduction motor, and the reduction motor drives the three-jaw chuck and the grinding cylinder to rotate relative to the ball head through the chuck connecting core shaft and the plane bearing.

[0015] The beneficial effects of the present invention are as follows: the rotation direction of the ball head and the rotation direction of the ball head seat and the spherical pressure cover are different, which can produce a higher linear speed and improve the surface roughness. The contact area of ​​the spherical surface is increased by the deadweight of the ball head and the locking force of the adjusting screw. At the same time, the frequency converter is used to adjust the speed of the reduction motor and the disc motor, and the use of 50 mesh, 200 mesh, and 400 mesh abrasive sand is used to perform coarse, semi-fine, and fine grinding on the spherical surface, which is also beneficial to improving the spherical surface roughness and contact area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 yes Figure 1 Schematic diagram of the AA structure.

[0018] Figure 3 It is a working schematic diagram of the present invention.

[0019] In the figure, 1 is a speed regulating motor mounting bracket, 2 is a reduction motor, 3 is a protective cover, 4 is a three-jaw chuck, 5 is a grinding cylinder, 6 is a connecting seat, 7 is an extension rod, 8 is a disc motor mounted to the bracket, 9 is a worm gear box mounting seat, 10 is a transmission sprocket, 11 is a sliding guide rod, 12 is a rotating connecting seat, 13 is a single-acting cylinder, 14 is a cylinder mounting seat, 15 is a fixed guide sleeve, 16 is a large worm sprocket, 17 is a tensioning wheel mechanism, 18 is a disc motor sprocket, 19 is a worm sprocket, 20 is a worm core shaft, 21 is a worm, 22 is a worm gear box, 23 is a worm, 24 is a disc motor, 25 is a ball head, 26 is a spherical pressure cover, 27 is a ball head seat, 28 is a chuck connecting core shaft, 29 is a plane bearing, and 30 is a three-jaw chuck mounting seat. DETAILED DESCRIPTION

[0020] A spherical grinding vertical machine, the vertical machine comprising a ball head 25, a ball head rotating mechanism, an extension rod up and down mechanism and a grinding cylinder rotating mechanism;

[0021] The extension rod upper and lower mechanism includes a connecting seat 6, an extension rod 7, a sliding guide rod 11, a single-acting cylinder 13, a cylinder mounting seat 14 and a fixed guide sleeve 15;

[0022] The ball head 25 is fixedly connected to the lower end of the connecting seat 6, the extension rod 7 is fixedly connected to the upper end of the connecting seat 6, the upper end of the extension rod 7 is connected to the sliding guide rod 11, the upper end of the sliding guide rod 11 is connected to the single-acting cylinder 13 through the rotating connecting seat 12, and the single-acting cylinder 13 is fixedly arranged on the cylinder mounting seat 14;

[0023] The ball head rotating mechanism includes a disc motor mounting bracket 8, a worm gear box mounting seat 9, a transmission sprocket 10, a rotating connection seat 12, a worm sprocket 16, a disc motor sprocket 18, a worm sprocket 19, a worm shaft 20, a worm 21, a worm gear box 22, a worm wheel 23 and a disc motor 24;

[0024] The disc motor mounting bracket 8 is arranged on one side of the upper and lower mechanisms of the extension rod, the worm gear box mounting seat 9 is arranged above the disc motor mounting bracket 8, the rotating connection seat 12 is connected to the outside of the sliding guide rod 11, the disc motor 24 is arranged in the disc motor mounting bracket 8, the worm gear box 22 is arranged on the worm gear box mounting seat 9, the worm wheel 23, the worm 21 and the worm wheel mandrel 20 are respectively arranged in the worm gear box 22, the upper end of the worm wheel mandrel 20 is connected to the worm wheel sprocket 19, the transmission sprocket 10 is connected to the outside of the fixed guide sleeve 15, the transmission sprocket 10 is connected to the worm wheel sprocket 19 through a chain, the disc motor sprocket 18 is connected to the output shaft of the disc motor 24, the disc motor sprocket 18 is connected to the large worm sprocket 16 through a chain, and the large worm sprocket 16 is connected to the worm 21 in the worm gear box 22;

[0025] The grinding cylinder rotating mechanism comprises a reduction motor mounting bracket 1, a reduction motor 2, a three-jaw chuck 3, a grinding cylinder 5, a spherical pressure cover 26, a ball head seat 27, a chuck connecting spindle 28, a plane bearing 29, and a three-jaw chuck mounting seat 30;

[0026] The reduction motor 2 is arranged on the reduction motor mounting bracket 1, the three-jaw chuck mounting seat 30 is arranged at the upper end of the reduction motor mounting bracket 1, the three-jaw chuck 4 is connected to the three-jaw chuck mounting seat 30, the grinding cylinder 5 is arranged on the three-jaw chuck 4 and clamped by the three-jaw chuck 4, the ball head seat 27 is fixedly arranged in the grinding cylinder 5, the spherical pressure cover 26 is fixedly arranged at the mouth of the grinding cylinder 5, and the ball head 25 is arranged in the grinding cylinder 5.

[0027] A protective cover 3 is disposed on the outer side of the three-jaw chuck mounting seat 30 .

[0028] The fixed guide sleeve 15 is arranged outside the sliding guide rod 11 .

[0029] The ball head rotating mechanism further comprises a tensioning wheel mechanism 17 , and the tensioning wheel mechanism 17 adjusts the tension of the chain between the disc motor sprocket 18 and the worm sprocket 16 .

[0030] The chuck connecting spindle 28 is connected to the output shaft of the reduction motor 2. The reduction motor 2 drives the three-jaw chuck 4 and the grinding cylinder 5 to rotate relative to the ball head 25 through the chuck connecting spindle 28 and the plane bearing 29.

[0031] The working process of the present invention is: open the compressed air reversing valve, inflate the single-acting cylinder 13, the single-acting cylinder 13 drives the sliding guide rod 11 connected thereto to lift upward, thereby driving the extension rod 7 to lift upward, install the grinding cylinder 5 on the three-jaw chuck 4, and clamp the grinding cylinder 5 with the three-jaw chuck 4, evenly apply grinding sand on the spherical surfaces of the ball head seat 27 and the spherical pressure cover 26, first install the ball head seat 27 into the grinding cylinder 5 with screws, then put the ball head 25 into the ball head seat 27, and then install the spherical pressure cover 26 on the mouth of the grinding cylinder 5 with screws, and finally connect and fix the connecting seat 6 with the ball head 25 with screws;

[0032] Open the compressed air reversing valve in reverse to slowly move the extension rod 7 downwards. When the lower end of the extension rod 7 is close to the end face of the connecting seat 6, it stops. The connecting seat 6 and the extension rod 7 are connected and fixed by screws.

[0033] Turn on the reduction motor 2, and drive the three-jaw chuck 4 and the grinding cylinder 5 fixed thereon to rotate through the action of the chuck connecting the mandrel 28 and the plane bearing 29. Since the ball head seat 27 and the spherical pressure cover 26 are fixed to the grinding cylinder 5 as a whole by screws, the ball head seat 27 generates a rotational motion relative to the ball head 25, and grinding begins;

[0034] After the reduction motor 2 is started for about 30 seconds, the disc motor 24 is turned on, and the worm wheel 23 and the worm 21 are driven to rotate relative to each other through the disc motor sprocket 18, the tensioning wheel mechanism 17, and the worm sprocket 16. The rotation of the worm wheel 23 is converted into the rotation of the worm wheel mandrel 20, the worm wheel mandrel sprocket 19, the transmission sprocket 10, and the sliding guide rod 11 through the key and chain transmission, and finally the extension rod 7 is driven to rotate. Since the extension rod 7 and the connecting seat 6 are connected by screws, and the connecting seat 6 and the ball head 25 are connected by screws, the ball head 25 begins to rotate in the opposite direction to the ball head seat 27 under the action of the screws;

[0035] After grinding for 5-10 minutes, first turn off the disc motor 24, then turn off the reduction motor 2, loosen the screws between the grinding cylinder 5, the connecting seat 6, the extension rod 7, and the spherical pressure cover 26, lift the ball head 26 with a crane, and evenly apply higher mesh grinding sand on the spherical surface of the ball head seat 27 and the spherical pressure cover 26, repeat the above clamping steps, and then increase the inverter parameters to speed up the reduction motor 2 and the disc motor 24. A higher linear speed can be generated to improve the surface roughness. The contact area of ​​the spherical surface is increased by the deadweight of the ball head 25 and the locking force of the adjusting screw. At the same time, the speed of the reduction motor 2 and the disc motor 24 is adjusted by the inverter. With the use of 50 mesh, 200 mesh, and 400 mesh grinding sand, the ball head 25, the ball head seat 27, and the spherical pressure cover 26 are subjected to coarse, semi-fine, and fine grinding in turn, which is beneficial to improving the spherical surface roughness and contact area.

[0036] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0038] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical special machine for spherical grinding, characterized by: The vertical special machine comprises a ball head (25), a ball head rotating mechanism, an extension rod up and down mechanism and a grinding cylinder rotating mechanism; The extending rod upper and lower mechanism comprises a connecting seat (6), an extending rod (7), a sliding guide rod (11), a single-acting cylinder (13), a cylinder mounting seat (14) and a fixed guide sleeve (15); The ball head (25) is fixedly connected to the lower end of the connecting seat (6), the extension rod (7) is fixedly connected to the upper end of the connecting seat (6), the upper end of the extension rod (7) is connected to the sliding guide rod (11), the upper end of the sliding guide rod (11) is connected to the single-acting cylinder (13) through the rotating connecting seat (12), and the single-acting cylinder (13) is fixedly arranged on the cylinder mounting seat (14); The ball head rotating mechanism comprises a disc motor mounting bracket (8), a worm gear box mounting seat (9), a transmission sprocket (10), a rotating connecting seat (12), a large worm sprocket (16), a disc motor sprocket (18), a worm sprocket (19), a worm wheel core shaft (20), a worm (21), a worm gear box (22), a worm wheel (23) and a disc motor (24); The disc motor mounting bracket (8) is arranged on one side of the upper and lower mechanism of the extension rod, the worm gear box mounting seat (9) is arranged above the disc motor mounting bracket (8), the rotating connection seat (12) is connected to the outside of the sliding guide rod (11), the disc motor (24) is arranged in the disc motor mounting bracket (8), the worm gear box (22) is arranged on the worm gear box mounting seat (9), and the worm wheel (23), the worm (21) and the worm wheel core shaft (20) are respectively arranged in the worm gear box (22). The upper end of the worm wheel core shaft (20) is connected to the worm wheel sprocket (19), the transmission sprocket (10) is connected to the outside of the fixed guide sleeve (15), the transmission sprocket (10) and the worm wheel sprocket (19) are connected by a chain, the disc motor sprocket (18) is connected to the output shaft of the disc motor (24), the disc motor sprocket (18) and the worm sprocket (16) are connected by a chain, and the worm sprocket (16) is connected to the worm (21) in the worm gear box (22); The grinding cylinder rotating mechanism comprises a reduction motor mounting bracket (1), a reduction motor (2), a three-jaw chuck (4), a grinding cylinder (5), a spherical pressure cover (26), a ball head seat (27), a chuck connecting spindle (28), a plane bearing (29), and a three-jaw chuck mounting seat (30); The reduction motor (2) is arranged on the reduction motor mounting bracket (1), the three-jaw chuck mounting seat (30) is arranged at the upper end of the reduction motor mounting bracket (1), the three-jaw chuck (4) is connected to the three-jaw chuck mounting seat (30), the grinding cylinder (5) is arranged on the three-jaw chuck (4) and clamped by the three-jaw chuck (4), the ball head seat (27) is fixedly arranged in the grinding cylinder (5), the spherical pressure cover (26) is fixedly arranged at the mouth of the grinding cylinder (5), and the ball head (25) is arranged in the grinding cylinder (5); A protective cover (3) is provided on the outer side of the three-jaw chuck mounting seat (30); The fixed guide sleeve (15) is arranged outside the sliding guide rod (11); The ball head rotating mechanism further comprises a tensioning wheel mechanism (17), wherein the tensioning wheel mechanism (17) adjusts the tension of the chain between the disc motor sprocket (18) and the worm sprocket (16); The chuck connecting spindle (28) is connected to the output shaft of the reduction motor (2), and the reduction motor (2) drives the three-jaw chuck (4) and the grinding cylinder (5) to rotate relative to the ball head (25) through the chuck connecting spindle (28) and the plane bearing (29).

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