CN108581540B

CN108581540B - Clamp for machining bolt ball by common lathe

Info

Publication number: CN108581540B
Application number: CN201810692900.5A
Authority: CN
Inventors: 江峰; 祝凤金; 张东方; 吕桂志; 沈勇
Original assignee: Heze University
Current assignee: Heze University
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2024-04-09
Anticipated expiration: 2038-06-29
Also published as: CN108581540A

Abstract

The utility model relates to the technical field of bolt ball processing technology equipment, in particular to a clamp for processing a bolt ball by an ordinary lathe. Compared with the prior art, the clamp for processing the bolt ball by the common lathe has the beneficial effects that: (1) The self-locking property of worm transmission is utilized, so that the clamping efficiency of the bolt ball is improved, and the vertical angle dial is prevented from rotating during processing; (2) The fine adjustment can be realized, the operation error is small, and the processing precision is improved; (3) The eccentric wheel and the locking pin lock the horizontal angle disc, so that the operation is quick and convenient, and the production efficiency is improved; (4) The rotation of the eccentric wheel can drive the transmission shaft to vertically slide at the same time, and the linkage function enables the utility model to be more convenient and rapid in operation, and improves the production efficiency.

Description

Clamp for machining bolt ball by common lathe

Technical Field

The utility model relates to the technical field of bolt ball processing technology equipment, in particular to a clamp for processing a bolt ball by an ordinary lathe.

Background

The bolt ball is an indispensable component part of the grid structure, and is provided with a plurality of internal threaded holes for being connected with the rod piece. The utility model patent with the application number of 200920218210.2 discloses a bolt ball processing positioning fixture, which comprises a base, a horizontal angle dial, a vertical angle dial, a clamping mandrel and the like, wherein the horizontal angle dial is rotatably arranged on the base and is fastened through a locking nut, a vertical wallboard is arranged on the horizontal angle dial, and the vertical angle dial is rotatably arranged on the vertical wallboard and is fastened through the locking nut. The clamping core shaft is arranged in the aperture of the vertical angle disc, one end of the clamping core shaft is provided with external threads for installing the bolt ball, and the other end of the clamping core shaft is provided with four directions. The base is fixedly arranged on a middle slide plate of the common lathe, and when the lathe is used, the bolt ball is firstly arranged on the clamping mandrel; and then, according to the position of the threaded hole to be processed of the bolt ball, loosening the locking nut for fastening the horizontal angle dial and the vertical angle dial, and screwing the locking nut after the horizontal angle dial and the vertical angle dial are rotated in place. The bolt ball processing positioning fixture has the following defects: (1) When the bolt ball is mounted on the clamping mandrel, one hand is required to fix one end of the clamping mandrel through the inner square wrench, and the other hand is required to screw the reference threaded hole of the bolt ball and the outer threads of the clamping mandrel, so that the operation process is time-consuming and labor-consuming, and the bolt ball is easy to be out of hand, so that a guide rail and a lathe bed of an ordinary lathe are crushed and even an operator is crushed; (2) The angle is adjusted by manually rotating the horizontal angle dial and the vertical angle dial, so that the operation error is large, fine adjustment cannot be performed, and the machining precision is affected; (3) Because the center of gravity of the bolt ball is not at the center of the ball, the bolt ball must be held and held during the process of rotating the vertical angle scale, and the vertical angle scale can be rotated once the hand is loosened, so that the operation is complex and inconvenient; (4) When the angle is adjusted, the locking nut is required to be unscrewed, and then the locking nut is screwed after the adjustment is finished, so that the labor intensity is high and the production efficiency is low.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the clamp for processing the bolt ball by the common lathe, which can reduce the labor intensity of workers, improve the production efficiency and the processing precision and eliminate the potential safety hazard.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme: a fixture for processing a bolt ball of an ordinary lathe comprises a base, a horizontal angle disc, a vertical angle disc, a worm wheel, a planetary gear, a sun gear, a transmission shaft, a shaft sleeve, a locking pin, an eccentric wheel and a shifting fork; the top of the base is fixedly provided with a vertical shaft, and the horizontal angle scale is slidably arranged above the base through the vertical shaft; the vertical angle dial is rotatably arranged on the front side of the vertical plate through the horizontal shaft, the horizontal shaft extends to the rear side of the vertical plate, and external threads are arranged at the end part of the horizontal shaft; the worm is arranged on the vertical plate, the axis of the worm is in a vertical direction, the worm wheel is fixedly connected with the vertical angle disc coaxially, and the worm is meshed with the worm wheel; the planetary gear is rotatably arranged on the horizontal angle disc and is coaxial with the worm, the sun gear is fixedly arranged on the vertical shaft, and the planetary gear is meshed with the sun gear; the shaft sleeve is fixedly arranged on the vertical plate, the shaft sleeve is coaxial with the worm and is positioned above the worm, and the transmission shaft is slidably sleeved in the shaft sleeve; the worm is provided with an axial through hole, and the transmission shaft penetrates through the through hole; the lower end of the transmission shaft is fixedly provided with a first friction disc, the lower end of the worm is fixedly provided with a second friction disc, a third friction disc fixedly connected with the planetary gear is arranged above the planetary gear, and the first friction disc is positioned between the second friction disc and the third friction disc; the locking pin penetrates through the horizontal angle disc and the base, an arc-shaped through groove matched with the locking pin is formed in the base, the circle center of the arc-shaped through groove is arranged on the axis of the vertical shaft, and the locking disc is fixedly arranged at the lower end of the locking pin; the eccentric wheel is pivoted with the upper end of the locking pin, the shifting fork is fixedly connected with the eccentric wheel, an annular groove is formed in the first friction disc, and the shifting fork is matched with the annular groove; when the eccentric wheel rotates forwards, the locking pin can be lifted and the shifting fork can be moved upwards.

The technical scheme of the utility model is as follows: the transmission shaft is provided with a limiting plate, the limiting plate is positioned below the shaft sleeve, and a spring is arranged between the shaft sleeve and the limiting plate. By adopting the technical scheme, after the eccentric wheel reversely rotates to release the locking between the horizontal angle disc and the base, the first friction disc is in close contact with the third friction disc when in spring, so that the first friction disc and the third friction disc are prevented from slipping when in transmission, and the transmission efficiency is ensured.

The technical scheme of the utility model is as follows: the worm wheel is positioned at the front side of the vertical plate. By adopting the technical scheme, the worm wheel, the worm, the planetary gear and the sun gear are all positioned on the front side of the vertical plate, and the vertical plate can prevent scrap iron and cutting fluid generated during processing of the bolt ball from splashing on the parts to cause part damage.

The technical scheme of the utility model is as follows: the upper end of the transmission shaft is provided with a knob or a hand wheel, and the eccentric wheel is fixedly provided with a trigger. For the bolt ball processing positioning clamp disclosed in the patent application number 200920218210.2, tools such as an internal square wrench, a solid wrench or an adjustable wrench are required to be used in the process of clamping the bolt ball and adjusting the angle, and once the tools are lost, the tools cannot work, so that the production progress is affected. By adopting the technical scheme, tools are not needed in the process of clamping the bolt ball and adjusting the angle, and the problems can be effectively solved.

The technical scheme of the utility model is as follows: the locking pins are arranged in two and symmetrically arranged on the left side and the right side of the horizontal angle disc. By adopting the technical scheme, the locking firmness of the horizontal angle disc and the base can be further enhanced.

Compared with the prior art, the clamp for processing the bolt ball by the common lathe has the beneficial effects that: (1) The worm drive has self-locking property (namely, only the worm can be used as a driving piece to drive the worm wheel to rotate, otherwise, the worm is not used), so that the horizontal shaft is kept motionless when the bolt ball is clamped, and the bolt ball can be simultaneously supported by both hands for clamping, thereby saving labor, and preventing the guide rail and the lathe bed of the common lathe from being crushed and even operators from being crushed due to the fact that the bolt ball is out of hands; (2) The horizontal angle dial and the vertical angle dial are respectively adjusted by twisting the transmission shaft, so that the fine adjustment can be realized, the operation error is small, and the machining precision is improved; (3) Because the worm transmission has self-locking property, even if the center of the bolt ball is not positioned at the ball center, the vertical angle scale can not rotate due to the reasons in the process of adjusting the vertical angle scale, and the operation is simple and convenient; (4) The worm transmission has self-locking property, and can prevent the bolt ball from being acted by the cutter to rotate the vertical angle scale, so that the vertical angle scale does not need to be locked; the eccentric wheel and the locking pin ensure the locking of the horizontal angle disc, and the eccentric wheel is only required to be pulled in the locking and unlocking process, so that the process of adjusting the ball angle of the bolt is quick and convenient, and the production efficiency is improved; (5) The forward rotating eccentric wheel can simultaneously realize the locking of the horizontal angle disc and the contact of the first friction disc and the second friction disc, and the reverse rotating eccentric wheel can simultaneously realize the unlocking of the horizontal angle disc and the contact of the first friction disc and the third friction disc, so that the interlocking function enables the utility model to be more convenient and faster in operation, and improves the production efficiency.

Drawings

Fig. 1 is a front view of a jig (horizontal angle disc and base locked state) for machining a bolt ball for a common lathe.

Fig. 2 is a view in the direction A-A of fig. 1 (horizontal angle scale and base locked state).

Fig. 3 is a plan view of a jig for machining a bolt ball for a common lathe (a horizontal angle scale and a base locking state).

Fig. 4 is a bottom view of a jig for a common lathe machining a bolt ball (a horizontal angle dial and a base lock state).

Fig. 5 is a side view of a jig for machining a bolt ball for a common lathe (horizontal angle dial and base unlock state).

Fig. 6 is a schematic view showing a structure in which a jig for machining a bolt ball by a common lathe is mounted on a common lathe.

Fig. 7 is a partial enlarged view of the portion B in fig. 6.

In the figure: 1. the device comprises a base, 2, a horizontal angle disc, 3, a vertical angle disc, 4, a vertical shaft, 5, a vertical plate, 6, a horizontal shaft, 7, a worm, 8, a worm wheel, 9, a planetary gear, 10, a sun gear, 11, a transmission shaft, 12, a shaft sleeve, 13, a locking pin, 14, an eccentric wheel, 15, a shifting fork, 16, a first friction disc, 17, a second friction disc, 18, a third friction disc, 19, an arc-shaped through groove, 20, a locking disc, 21, an annular groove, 22, a limiting plate, 23, a spring, 24, a knob, 25, a spanner handle, 26, a common lathe, 27, a middle slide plate, 28, a slide carriage, 29 and a bolt ball.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the following description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.

Fig. 1 to 7 show a jig for machining a bolt ball for a general lathe according to the present utility model, which includes a base 1, a horizontal angle dial 2, a vertical angle dial 3, a worm 7, a worm wheel 8, a planetary gear 9, a sun gear 10, a transmission shaft 11, a shaft sleeve 12, a locking pin 13, an eccentric 14, and a fork 15.

The top of the base 1 is fixedly provided with a vertical shaft 4, the horizontal angle dial 2 is slidably arranged above the base 1 through the vertical shaft 4, and the horizontal angle dial 2 can rotate around the vertical shaft 4 and can axially slide along the vertical shaft 4.

The horizontal angle dial 2 is provided with a vertical plate 5, the vertical angle dial 3 is fixedly provided with a horizontal shaft 6, and the vertical angle dial 3 is rotatably arranged on the front side of the vertical plate 5 through the horizontal shaft 6. The horizontal shaft 6 extends to the rear side of the riser 5, and the end of the horizontal shaft 6 is provided with external threads for mating with a reference threaded hole on the bolt ball 29.

The horizontal angle dial 2 and the vertical angle dial 3 are provided with scales.

The worm 7 is arranged on the vertical plate 5, the axis of the worm 7 is vertical, the worm wheel 8 is fixedly connected with the vertical angle disc 3 coaxially and is positioned at the front side of the vertical plate 5, and the worm 7 is meshed with the worm wheel 8.

A planetary gear 9 is rotatably mounted on the horizontal angle plate 2 and coaxial with the worm 7, a sun gear 10 is fixedly mounted on the vertical shaft 4, and the planetary gear 9 is meshed with the sun gear 10.

The shaft sleeve 12 is fixedly arranged on the vertical plate 5, the shaft sleeve 12 is coaxial with the worm 7 and is positioned above the worm 7, and the transmission shaft 11 is slidably sleeved in the shaft sleeve 12. The transmission shaft 11 is provided with a limiting plate 22, the limiting plate 22 is positioned below the shaft sleeve 12, and a spring 23 is arranged between the shaft sleeve 12 and the limiting plate 22.

The worm 7 is provided with an axial through hole, and the transmission shaft 11 passes through the through hole.

The upper end of the transmission shaft 11 is provided with a knob 24, the lower end of the transmission shaft 11 is fixedly provided with a first friction disk 16, the lower end of the worm 7 is fixedly provided with a second friction disk 17, a third friction disk 18 fixedly connected with the planetary gear 9 is arranged above the planetary gear 9, and the first friction disk 16 is positioned between the second friction disk 17 and the third friction disk 18.

The locking pins 13 are arranged symmetrically on the left side and the right side of the horizontal angle disc 2. The locking pin 13 penetrates through the horizontal angle disc 2 and the base 1, an arc-shaped through groove 19 matched with the locking pin 13 is formed in the base 1, the circle center of the arc-shaped through groove 19 is arranged on the axis of the vertical shaft 4, and a locking disc 20 is fixedly arranged at the lower end of the locking pin 13. The eccentric wheel 14 is pivoted with the upper end of the locking pin 13, the shifting fork 15 is fixedly connected with the eccentric wheel 14, the first friction disk 16 is provided with an annular groove 21, and the shifting fork 15 is matched with the annular groove 21. A trigger 25 is fixedly arranged on the eccentric wheel 14, and the eccentric wheel 14 can lift the locking pin 13 and enable the shifting fork 15 to move upwards when rotating forwards.

The base 1 is fixedly mounted on a middle slide plate 27 of the common lathe 26, and the axis of the horizontal shaft 6 is coplanar with the axis of the main shaft of the common lathe 26. To avoid interference, the small slide of the common lathe 26 is removed.

The working principle of the clamp for processing the bolt ball by the common lathe is as follows:

first, the bolt ball 29 is screwed and fixed on the horizontal shaft 6 through the reference screw hole, and the worm drive has self-locking property, so that the bolt ball 29 can be held by both hands to perform the operation, and the guide rail and the lathe bed of the common lathe 26 and even operators are crushed due to the fact that the bolt ball 29 is out of hand can be prevented.

Then, the knob 24 is screwed to rotate the transmission shaft 11 while the first friction disk 16 is in contact with the second friction disk 17 (as shown in fig. 2), the rotation of the transmission shaft 11 is transmitted to the vertical angle dial 3 through the worm 7 and the worm wheel 8, and the rotation angle of the vertical angle dial 3 is controlled by the scale marks on the vertical angle dial 3 and the riser 5 until the vertical angle dial 3 is adjusted to the target angle, during which the lock pin 13 slides in the arc-shaped through groove 19.

After the angle of the vertical angle dial 3 is adjusted, the trigger 25 is lifted upwards to reversely rotate the eccentric wheel 14, and in the process, the distance from the contact point of the eccentric wheel 14 and the horizontal angle dial 2 to the pivot point of the eccentric wheel 14 and the locking pin 13 is gradually reduced, so that the locking pin 13 moves downwards for a certain distance, the distance between the eccentric wheel 14 and the locking disc 20 is increased, and the horizontal angle dial 2 is unlocked from the base 1. At the same time, the lever action of the eccentric wheel 14 causes the shifting fork 15 to move downwards, and the shifting fork 15 drives the first friction wheel 16 to move downwards, so that the first friction wheel 16 is in contact with the third friction wheel 18 (as shown in fig. 5). The knob 24 is screwed to rotate the transmission shaft 11, the transmission shaft 11 drives the star gear 9 to rotate, the star gear 9 revolves around the sun gear 10 and drives the horizontal angle dial 2 to rotate, and the rotation angle of the horizontal angle dial 2 is controlled through the horizontal angle dial 2 and the scales on the base 1 until the target angle of the horizontal angle dial 2 is adjusted.

After the angle of the horizontal angle dial 2 is adjusted, the trigger 25 is pressed to rotate the eccentric wheel 14 forward, and in the process, the distance from the contact point of the eccentric wheel 14 and the horizontal angle dial 2 to the pivot point of the eccentric wheel 14 and the locking pin 13 is gradually increased, so that the locking pin 13 moves up a distance to press and lock the horizontal angle dial 2 and the base 1 between the eccentric wheel 14 and the locking disc 20.

The left and right feed and the front and rear feed of the bolt ball 29 are respectively performed by the carriage box 28 and the center slide plate 27, and the common lathe 26 performs the plane milling, drilling and tapping processing of the bolt ball 29.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a anchor clamps for normal lathe processing bolt ball, includes base (1), horizontal angle scale (2) and vertical angle scale (3), its characterized in that: the top of the base (1) is fixedly provided with a vertical shaft (4), and the horizontal angle disc (2) is slidably arranged above the base (1) through the vertical shaft (4); the vertical angle dial (3) is rotatably arranged on the front side of the vertical plate (5) through the horizontal shaft (6), the horizontal shaft (6) extends to the rear side of the vertical plate (5), and external threads are arranged at the end part of the horizontal shaft (6); the device also comprises a worm (7), a worm wheel (8), a planetary gear (9), a sun gear (10), a transmission shaft (11), a shaft sleeve (12), a locking pin (13), an eccentric wheel (14) and a shifting fork (15); the worm (7) is arranged on the vertical plate (5) and the axis of the worm is in a vertical direction, the worm wheel (8) is fixedly connected with the vertical angle disc (3) coaxially, and the worm (7) is meshed with the worm wheel (8); the planetary gear (9) is rotatably arranged on the horizontal angle disc (2) and is coaxial with the worm (7), the sun gear (10) is fixedly arranged on the vertical shaft (4), and the planetary gear (9) is meshed with the sun gear (10); the shaft sleeve (12) is fixedly arranged on the vertical plate (5), the shaft sleeve (12) is coaxial with the worm (7) and is positioned above the worm (7), and the transmission shaft (11) is slidably sleeved in the shaft sleeve (12); an axial through hole is formed in the worm (7), and the transmission shaft (11) penetrates through the through hole; a first friction disc (16) is fixedly arranged at the lower end of the transmission shaft (11), a second friction disc (17) is fixedly arranged at the lower end of the worm (7), a third friction disc (18) fixedly connected with the planetary gear (9) is arranged above the planetary gear, and the first friction disc (16) is positioned between the second friction disc (17) and the third friction disc (18); the locking pin (13) penetrates through the horizontal angle disc (2) and the base (1), an arc-shaped through groove (19) matched with the locking pin (13) is formed in the base (1), the circle center of the arc-shaped through groove (19) is arranged on the axis of the vertical shaft (4), and a locking disc (20) is fixedly arranged at the lower end of the locking pin (13); the eccentric wheel (14) is pivoted with the upper end of the locking pin (13), the shifting fork (15) is fixedly connected with the eccentric wheel (14), an annular groove (21) is formed in the first friction disc (16), and the shifting fork (15) is matched with the annular groove (21); when the eccentric wheel (14) rotates forwards, the locking pin (13) can be pulled and the shifting fork (15) moves upwards; a limiting plate (22) is arranged on the transmission shaft (11), the limiting plate (22) is positioned below the shaft sleeve (12), and a spring (23) is arranged between the shaft sleeve (12) and the limiting plate (22); the worm wheel (8) is positioned at the front side of the vertical plate (5).

2. The jig for ordinary lathe machining a bolt ball according to claim 1, wherein: the upper end of the transmission shaft (11) is provided with a knob (24) or a hand wheel, and the eccentric wheel (14) is fixedly provided with a trigger (25).

3. The jig for ordinary lathe machining a bolt ball according to claim 1, wherein: the locking pins (13) are arranged in two and symmetrically arranged on the left side and the right side of the horizontal angle disc (2).