CN115958431A - Rotary worktable - Google Patents

Abstract

The invention discloses a rotary worktable which comprises a base, wherein a rotary table body is arranged at the upper end of the base, an annular body is arranged in the middle of the upper end of the base corresponding to the rotary table body, the rotary table body is fixedly connected with a main shaft through a first inner hexagonal bolt, the main shaft penetrates through a hole in the middle of the rotary table body, the main shaft is used for installing a turbine, the turbine is connected with a driving mechanism, handle groups are installed at two ends of the rotary table body, an inner hole of the main shaft is a Morse cone, so that a clamp and a measuring instrument can be conveniently installed, the worktable is braked by rotating the handle clockwise, otherwise, the handle is rotated anticlockwise, the worktable is loosened, so that a worker can conveniently operate the worktable, 360-degree scribed lines are arranged on the circumference of the worktable, the size of a corner is determined through a cursor, the position can be adjusted after a third screw is loosened, the third screw needs to be tightened after the position is adjusted, and the position of the worktable is convenient to adjust.

Description

a rotary table

technical field

The invention relates to the field of workbenches, in particular to a rotary workbench.

Background technique

Rotary table refers to a machine tool accessory with a rotatable table for clamping workpieces and realizing rotation and indexing positioning, referred to as turntable or fourth axis. According to different functions, the turntable can be divided into two types: general turntable and precision turntable.

It is an important accessory for boring machines, drilling machines, milling machines and slotting machines. It is used to process holes, grooves and slopes with indexing requirements. When turning the worktable during processing, it can process arc surfaces and arc grooves. Universal turntables are divided into horizontal turntables, vertical and horizontal turntables and universal turntables according to different structures. The existing rotary table, when in use, is difficult to brake due to the large inertia after the worktable is rotated.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a rotary workbench, which includes a base, a turntable body is arranged at the upper end of the base, and a ring-shaped body is arranged corresponding to the turntable body in the middle part of the upper end of the base, and the turntable body is fixedly connected to the main shaft by the first hexagon socket bolt, and the main shaft Through the hole in the middle of the turntable body, the main shaft is used to install the turbine, the turbine is connected to the driving mechanism, and the two ends of the turntable body are equipped with handle assemblies.

Preferably: the turret body is provided with 360° reticles, each grid is 1°.

Preferably: an oil mirror is installed on the side wall of the base, a second O-ring is set on the oil mirror, an oil plug is installed on the other side wall of the base, and the oil plug is fixed to the base by a first screw.

Preferably: a first hook and a first O-ring are fitted on the first hexagon socket bolt, and the first hook is provided with a hole corresponding to the first hexagon socket bolt.

Preferably: the inside of the base is provided with a first pressure plate, the first pressure plate is set in a bent shape, a hole is opened at the bottom of the first pressure plate, and a T-shaped screw is installed on the first pressure plate at the hole, and the T-shaped screw passes through the first gasket The base is fixed with the inner hexagon nut, the base is provided with a second pressure plate inside, the second pressure plate is set in an L shape, a hole is opened on the upper part of the second pressure plate, and T-shaped screws are installed on the second pressure plate at the hole, and the T-shaped screws pass through the first Spacers and hexagon socket nuts are fixed to the base.

Preferably: a third gasket, a first nut and a second nut are arranged at the bottom of the turntable body, the first nut and the second nut are arranged in a ring shape, and threaded holes are opened on the first nut and the second nut, The first nut and the second nut are connected to the external thread at the bottom of the main shaft.

Preferably: the outer edge of the annular body of the base is provided with a card slot, and a cursor is installed at the card slot, and the cursor is fixed with the annular body of the base by a third screw, and a fourth screw is installed at the bottom of the base, and the base is close to A hexagon socket head cap screw is installed at the upper end of the fourth screw.

Preferably: the side wall of the base is provided with a positioning key, the positioning key is fixed to the base by the sixth screw, and there are two positioning keys, the side wall of the base is equipped with a positioning pin, and the side wall of the base is installed with a threaded pin.

Preferably: the drive mechanism includes a worm, the worm is connected to the worm gear, the end of the worm is provided with an external thread structure, the end of the worm is connected to a key, the worm is fitted with a pin near the key, the worm is fitted with a fourth gasket near the pin, and the worm is located at the fourth The outer side of the gasket is set with a fifth gasket, the outer thread structure of the worm is threaded to connect with the lock nut, the outer side of the worm is set with an eccentric sleeve, and the handle assembly is installed on the eccentric sleeve, the handle assembly is fixed with the eccentric sleeve through the seventh screw, and the worm The other end far away from the vernier disc is threaded to the first bushing, the worm is fitted with a scale ring, and the scale ring and the worm are connected by two spring pieces, the second bushing is installed inside the scale ring, and the second bushing is used to install the handwheel , an oil level plate is installed inside the hand wheel, and a second hook is arranged inside the oil level plate, the second hook is fixed to the oil level plate by the eighth screw, the oil level plate is fixed to the hand wheel by the eighth screw, and the hand wheel is installed with The handle, the handle is fixed to the handwheel through the handle screw, and the middle part of the handwheel is fixed to the vernier plate through the fifth washer and the third nut.

Preferably: a mounting hole is opened on the side of the base, and the mounting hole is used for mounting the worm.

Technical effect and advantage of the present invention:

1. The inner hole of the main shaft is Morse taper, which is convenient for the installation of fixtures and measuring instruments. Turn the handle clockwise, and the workbench will be locked. On the contrary, turn the handle counterclockwise, and the workbench will be released, which is convenient for the staff to operate the workbench.

2. There are 360° engraved lines on the circumference of the workbench. The size of the corner is determined by the cursor. After loosening the third screw, the position of the cursor can be adjusted. After the position is adjusted, the third screw needs to be tightened to facilitate the adjustment of the workbench position.

Description of drawings

Fig. 1 is an exploded view of the rotary table provided by the embodiment of the present application;

In the figure: 1. base; 2. turntable body; 3. main shaft; 4. first hexagon socket bolt; 5. first hook; 6. first O-ring; 7. handle assembly; 8. oil mirror; 9 , the second O-ring; 10, the first screw; 11, the oil plug; 12, the hex nut; 13, the first gasket; 14, the pressure plate; 15, the T-shaped screw; 16, the second gasket; 17 , T-shaped screw; 18, third gasket; 19, first nut; 20, second nut; 21, second screw; 22, vernier; 23, third screw; 24, fourth screw; 25, inner hexagon Screw; 26, the fifth screw; 27, positioning key; 28, the sixth screw; 29, screw pin; 30, positioning pin; 31, worm; 32, key; 33, pin; 34, the fourth gasket; 35, Lock nut; 36, fifth gasket; 37, eccentric sleeve; 38, seventh screw; 39, handle assembly; 40, vernier plate; 41, second hook; 42, eighth screw; 43, first casing ; 44, scale ring; 45, second casing; 46, hand wheel; 47, handle; 48, handle screw; 49, ninth screw; 50, fifth gasket; 51, third nut.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

Please refer to Fig. 1. In this embodiment, a rotary table is provided, including a base 1, a turntable body 2 is arranged on the upper end of the base 1, and a 360° engraved line is arranged on the turntable body 2, each grid is 1°, and the middle part of the upper end of the base 1 is Corresponding to the turntable body 2, there is an annular body. The turntable body 2 is fixedly connected to the main shaft 3 through the first hexagon socket head bolt 4. The inner hole of the main shaft 3 is a Morse taper, which is convenient for the installation of fixtures and measuring instruments. The main shaft 3 runs through the middle of the turntable body 2. The hole, the main shaft 3 is used to install the turbine, the turbine is located inside the annular body, the first hook 5 and the first O-ring 6 are set on the first hexagon socket bolt 4, and the first hook 5 corresponds to the first socket bolt 4 A hole is opened, a handle assembly 7 is installed at both ends of the turntable body 2, an oil mirror 8 is installed on the side wall of the base 1, and the oil mirror 8 is equipped with a second O-ring 9 to improve the sealing effect of the oil mirror 8. An oil plug 11 is installed on the other side wall of the base 1 , and the oil plug 11 is fixed to the base 1 by a first screw 10 .

The inside of the base 1 is provided with a first pressure plate 14, the first pressure plate 14 is arranged in a bent shape, the bottom of the first pressure plate 14 is provided with a hole, the first pressure plate 14 is located at the hole and a T-shaped screw 15 is installed, and the T-shaped screw 15 passes through the first The washer 13 and the inner hex nut 12 are fixed with the base 1 .

A second pressure plate 16 is arranged inside the base 1, and the second pressure plate 16 is arranged in an L shape. A hole is opened on the upper part of the second pressure plate 16, and a T-shaped screw 17 is installed at the second pressure plate 16, and the T-shaped screw 17 passes through the first pad. The sheet 13 and the inner hex nut 12 are fixed with the base 1 .

The bottom of the turntable body 2 is provided with a third gasket 18, a first nut 19 and a second nut 20, the first nut 19 and the second nut 20 are arranged in a ring shape, and the first nut 19 and the second nut 20 are provided with Threaded holes, the first nut 19 and the second nut 20 are connected to the external thread at the bottom of the main shaft 3, and then the first nut 19 and the second nut 20 are fixed by bolts.

The outer edge of the annular body of the base 1 is provided with a card slot, and a cursor 22 is installed at the slot, and the cursor 22 is fixed to the annular body of the base 1 by a third screw 23, and a fourth screw 24 is installed at the bottom of the base 1. A hexagon socket head cap screw 25 is mounted on the base 1 close to the upper end of the fourth screw 24 .

The side wall of base 1 is provided with positioning key 27, and positioning key 27 is fixed with base 1 by the 6th screw 28, and positioning key 2 is provided with two, and positioning pin 30 is installed at the side wall of base 1, and the side of base 1 A threaded pin 29 is installed at the wall, and the threaded pin 29 is fixed to the base 1 by the sixth screw 28 .

The side of the base 1 is provided with a mounting hole, and a worm 31 is installed in the mounting hole, the worm 31 is connected to the turbine, the end of the worm 31 is provided with an external thread structure, the end of the worm 31 is connected to the key 32, and the worm 31 is fitted with a pin 33 near the key 32 The worm 31 is fitted with a fourth washer 34 near the pin 33 , the worm 31 is set with a fifth washer 36 outside the fourth washer 34 , and the external thread structure of the worm 31 is threadedly connected with a lock nut 35 .

An eccentric sleeve 37 is sleeved on the outside of the worm 31 , and a handle assembly 39 is mounted on the eccentric sleeve 37 , and the handle assembly 39 is fixed to the eccentric sleeve 37 by a seventh screw 38 .

The other end of the worm 31 away from the vernier plate 40 is screwed to the first bushing 43, the worm 31 is covered with a scale ring 44, the scale ring 44 and the worm 31 are connected by two spring pieces, and the scale ring 44 is equipped with a second sleeve 45. The second bushing 45 is used to install the handwheel 46. An oil level plate 40 is installed inside the hand wheel 46. A second hook 41 is arranged inside the oil level plate 40. The second hook 41 connects with the oil level plate through the eighth screw 42 40 is fixed, the oil level plate 40 is fixed with the hand wheel 46 through the eighth screw 42, the handle 47 is installed on the hand wheel 46, the handle 47 is fixed with the hand wheel 46 through the handle screw 48, and the middle part of the hand wheel 46 is passed through the fifth gasket 50 And the third nut 51 is fixed with the vernier plate 40 .

Among them, the adjustment of the axial position of the worm 31: when the axial movement of the worm 31 occurs due to wear, it is necessary to remove the hand wheel 46 and the fifth washer 36 first, and tighten the lock nut 35 to eliminate the axial movement of the worm 21 , reinstall the hand wheel 46 and the fifth gasket 36;

Adjustment of the limit screw of the eccentric sleeve 37: When the vernier disc 40 is turned counterclockwise, and the worm 31 and the turbine cannot be meshed correctly, the sixth screw 28 needs to be unscrewed, and the position of the threaded pin 29 should be adjusted until the meshing is correct, and then reinstalled. Upper sixth screw 28;

Adjustment of the zero position of the scale ring 44: the scale ring 44 and the worm 31 are connected by two spring pieces. When adjusting, turn the handle 39 to lock the worm 31, and turn the scale ring 44 slightly so that the zero line corresponds to the vernier plate 40 After adjusting, unclamp the handle assembly 39 to get final product.

The working principle of the present invention is:

Turn the handwheel 46 clockwise. If the handwheel 36 turns over the predetermined position, it needs to be turned counterclockwise through a certain angle, and then turn clockwise to the predetermined position again to eliminate the gap between the worm 31 pairs. Turn the eccentric sleeve 37 counterclockwise to tighten the brake. The screw 25 is loosened, and then the handle 39 is loosened, and the vernier disc 40 is turned clockwise. At this time, the worm 31 is disengaged from the turbine, and the workbench can be rotated at a large angle manually. Otherwise, the vernier disc 40 is turned counterclockwise to make the worm 31 is in the meshing position with the turbine, and the screw 25 is tightened, and the hand wheel 46 can be used for indexing or continuous processing;

Turn the handle 7 clockwise, and the workbench will be braked; otherwise, turn the handle 7 counterclockwise, and the workbench will be released;

There are 360° engraved lines on the circumference of the workbench. The size of the corner is determined by the cursor 22. After loosening the third screw 23, the position of the cursor 22 can be adjusted. After the position is adjusted, the third screw 23 needs to be tightened;

The transmission ratio of the workbench is 1:90, the handwheel 40 turns every 90 turns, the workbench turns 1 turn, the handwheel 46 turns 1 turn, the workbench turns 4° (360°/90=4°), the scale ring 44 turns every The grid scale value is 1, and the scale line division value on the vernier disc 40 is 10 °. From the scale ring 44, the minute value is read, and the second value is obtained from the vernier disc 40.

Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, shall be implemented according to conventional means in the art.

Claims (10)

1. A rotary table, comprising a base (1), characterized in that, the upper end of the base (1) is provided with a turntable body (2), and the middle part of the upper end of the base (1) is provided with a ring corresponding to the turntable body (2). Shaped body, the turntable body (2) is fixedly connected to the main shaft (3) through the first hexagon socket head bolt (4), the main shaft (3) runs through the hole in the middle of the turntable body (2), and the main shaft (3) is used for A turbine is installed, the turbine is connected with a driving mechanism, and handle assemblies (7) are installed at both ends of the turntable body (2). 2. A rotary table according to claim 1, characterized in that, the rotary table body 2 is provided with 360° engraved lines, each grid is 1°. 3. A rotary table according to claim 1, characterized in that an oil mirror (8) is installed on the side wall of the base (1), and the oil mirror (8) is sleeved with a second O-ring (9), an oil plug (11) is installed on the other side wall of the base (1), and the oil plug (11) is fixed to the base (1) by the first screw (10). 4. A rotary table according to claim 1, characterized in that, the first hexagon socket bolt (4) is fitted with a first hook (5) and a first O-ring (6), and The first hook (5) is provided with a hole corresponding to the first hexagon socket bolt (4). 5. A rotary table according to claim 3, characterized in that a first pressing plate (14) is arranged inside the base (1), the first pressing plate (14) is arranged in a bent shape, the first pressing plate (14) The bottom is provided with a hole, and the first pressure plate (14) is located at the hole to install a T-shaped screw (15), and the T-shaped screw (15) passes through the first gasket (13) and the inner hex nut (12) and the base ( 1) Fixed, the base (1) is provided with a second pressure plate (16), the second pressure plate (16) is set in an L shape, the upper part of the second pressure plate (16) is provided with a hole, and the second pressure plate (16) is installed at the hole There are T-shaped screws (17), and the T-shaped screws (17) are fixed with the base (1) by the first gasket (13) and hexagon socket nut (12). 6. A rotary table according to claim 1, characterized in that, a third gasket (18), a first nut (19) and a second nut (20) are provided at the bottom of the turntable body (2) ), the first nut (19) and the second nut (20) are arranged in a ring shape, and the first nut (19) and the second nut (20) are provided with threaded holes, the first nut (19) and the second nut (20) connect the external thread at the bottom of the main shaft (3). 7. A kind of rotary table according to claim 5, characterized in that, the outer edge of the annular body of the base (1) is provided with a card slot, and a cursor (22) is installed at the card slot, and the cursor ( 22) The third screw (23) is fixed to the annular body of the base (1), the bottom of the base (1) is equipped with a fourth screw (24), and the base (1) is installed near the upper end of the fourth screw (24). Socket head cap screws (25). 8. A rotary table according to claim 7, characterized in that, the side wall of the base (1) is provided with a positioning key (27), and the positioning key (27) is connected with the sixth screw (28) The base (1) is fixed, and two positioning keys (2) are provided, a positioning pin (30) is installed at the side wall of the base (1), and a threaded pin (29) is installed at the side wall of the base (1). 9. A rotary table according to claim 1, characterized in that the drive mechanism includes a worm (31), the worm (31) is connected to the turbine, the end of the worm (31) is provided with an external thread structure, the worm (31) ) is connected to the key (32), the worm (31) is set with a pin (33) close to the key (32), the worm (31) is set with a fourth gasket (34) close to the pin (33), and the worm (31) is located The fifth gasket (36) is sleeved on the outside of the fourth gasket (34), the lock nut (35) is threadedly connected to the external thread structure of the worm (31), and the eccentric sleeve (37) is sleeved on the outside of the worm (31). A handle assembly (39) is installed on the eccentric sleeve (37), and the handle assembly (39) is fixed with the eccentric sleeve (37) by the seventh screw (38). A sleeve (43), a scale ring (44) is set on the worm (31), the scale ring (44) is connected with the worm (31) by two spring pieces, and a second sleeve is installed in the scale ring (44) (45), the second sleeve (45) is used to install the hand wheel (46), the oil level plate (40) is installed in the hand wheel (46), and the second hook (41) is arranged on the inside of the oil level plate (40) , the second hook (41) is fixed to the oil level plate (40) through the eighth screw (42), the oil level plate (40) is fixed to the hand wheel (46) through the eighth screw (42), and the hand wheel (46) A handle (47) is installed, and the handle (47) is fixed to the hand wheel (46) through the handle screw (48), and the middle part of the hand wheel (46) is connected to the vernier plate through the fifth washer (50) and the third nut (51) (40) FIXED. 10. A rotary table according to claim 1, characterized in that, a mounting hole is opened on the side of the base (1), and the mounting hole is used for mounting the worm (31).

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