Radial adjustable multi-head drilling device

Abstract

The invention discloses a radial adjustable multi-head drilling device which comprises a fixed sleeve used for being connected with a drilling machine, and a main shaft of the drilling machine is rotationally connected to the fixed sleeve; the supporting plate is connected to the fixing sleeve through a diagonal draw bar, and a plurality of sliding rails are evenly connected to the supporting plate in the circumferential direction; the sliding block is in sliding fit with the sliding rail, and an elastic piece is connected between the sliding block and the fixed sleeve; the center shaft is connected to a main shaft of the drilling machine, and the main shaft of the drilling machine drives the center shaft; the driven shaft is rotationally connected to the sliding block, and the bottom end of the driven shaft is connected with a clamping base used for installing a drill bit; the driving gear is connected to the central shaft; the driven gear is connected to the driven shaft; the transition gear is meshed with the driving gear and the driven gear; and the rotating mechanism drives the transition gears to revolve so as to increase or reduce the distance between the driven gear and the driving gear. The distribution angle of the drill bits can be flexibly adjusted in the circumferential direction according to the hole site layout and machining requirements of different workpieces, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, in particular to a radially adjustable multi-head drilling device. Background Art

[0002] In the machining industry, multi-head drilling equipment significantly improves production efficiency by virtue of its ability to process multiple holes simultaneously, and is widely used in automotive parts manufacturing, electronic equipment production and other fields.

[0003] However, existing multi-tip drilling equipment generally suffers from inconvenient circumferential angle adjustment. The drill bit mounting position of traditional multi-tip drills is relatively fixed, making it difficult to flexibly adjust the drill bit's distribution angle in the circumferential direction to suit the hole layout and processing requirements of different workpieces. This often requires frequent equipment replacement or fixture readjustment when working with workpieces with complex hole layouts, increasing processing costs and time while reducing production efficiency. Furthermore, the fixed circumferential layout limits the equipment's versatility, making it unable to meet diverse processing needs.

[0004] Therefore, a radially adjustable multi-head drilling device is badly needed. Summary of the Invention

[0005] The purpose of the present invention is to provide a radially adjustable multi-head drilling device, which can flexibly adjust the distribution angle of the drill bits in the circumferential direction according to the hole layout and processing requirements of different workpieces, improve production efficiency, reduce production costs, and solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A radially adjustable multi-head drilling device includes a fixed sleeve for connecting to a drilling machine, and the main shaft of the drilling machine is rotatably connected to the fixed sleeve; a support plate is connected to the fixed sleeve through an inclined pull rod, and a plurality of slide rails are evenly connected to the support plate in the circumferential direction; a slider is slidably fitted in the slide rail, and an elastic member is connected between the slider and the fixed sleeve; a central shaft is connected to the main shaft of the drilling machine, and the main shaft of the drilling machine drives the central shaft; a driven shaft is rotatably connected to the slider, and the bottom end of the driven shaft is connected to a clamping seat for mounting a drill bit; a driving gear is connected to the central shaft; a driven gear is connected to the driven shaft; a transition gear is meshed with the driving gear and the driven gear; and a rotating mechanism drives each transition gear to revolve to increase or decrease the distance between the driven gear and the driving gear.

[0007] A further solution of the present invention is that the support plate includes a central circular plate, three webs are arranged in a ring-shaped array on the circular plate, three slide rails are connected to the bottom of the webs by bolts, and one end of the slide rail is connected to a baffle.

[0008] A further solution of the present invention is that the outer wall of the fixed sleeve is connected to a jacket, one end of the three inclined rods is connected to the jacket, and the other end is connected to the baffle.

[0009] A further solution of the present invention is that a slide groove is provided on the slide rail, and the slider slides in the slide groove; the elastic member is a spring, one end of the spring is connected to the inner side of the slider, and the other end is connected to the outer wall of the fixed sleeve.

[0010] A further solution of the present invention is that the driving gear is connected to the bottom end of the central shaft, the top end of the driven shaft is rotatably connected to the slider through a bearing, and the driven gear is connected to the middle of the driven shaft.

[0011] A further solution of the present invention is that the central axis above the support plate is rotatably connected to the upper triangular plate, a spacer is provided between the upper triangular plate and the support plate, the bottom end of the central axis is rotatably connected to the lower triangular plate, the upper triangular plate and the lower triangular plate are connected by a long screw, and three transition gears are rotatably connected to the three ends of the lower triangular plate.

[0012] A further solution of the present invention is that the rotating mechanism includes a support, the support is connected to the support plate, a worm is rotatably connected to the support, a worm wheel is connected above the upper triangular plate by bolts, and the worm wheel is engaged with the worm wheel.

[0013] A further solution of the present invention is that a locking screw is connected to the support, and the locking screw can abut against the outer wall of one end of the worm.

[0014] A further solution of the present invention is that one end of the worm is connected to a square head.

[0015] A further solution of the present invention is that the top end of the central shaft is in the shape of a Morse cone for connection to the main shaft of the drilling machine, and the bottom end of the driven shaft is in the shape of a Morse cone for mounting a clamping seat.

[0016] Beneficial effects of the present invention: The radially adjustable multi-head drilling device of the present invention can flexibly adjust the distribution angle of the drill bits in the circumferential direction according to the hole layout and processing requirements of different workpieces, thereby improving production efficiency and reducing production costs.

[0017] The radially adjustable multi-head drilling device of the present invention has an adjustable circumferential arrangement of the drill bits, which ensures the versatility of the equipment and can meet diverse processing requirements.

[0018] In the radially adjustable multi-head drilling device of the present invention, one end of the worm is connected with a square head, which makes it convenient for operators to adjust the worm and change the distribution angle of the drill bits.

[0019] The radially adjustable multi-head drill device of the present invention has a locking screw connected to the support. The locking screw can abut against the outer wall of one end of the worm, playing a locking role during drilling, thereby ensuring drilling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the local structure of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the rotating mechanism of the present invention.

[0024] Figure 5 Schematic diagram of the structure of the support plate of the present invention.

[0025] In the figure: 1-fixed sleeve, 2-main shaft, 3-support plate, 4-oblique tie rod, 5-slide rail, 6-slider, 7-center shaft, 8-driven shaft, 9-driving gear, 10-driven gear, 11-transition gear, 12-baffle, 13-jacket, 15-upper triangular plate, 16-spacer, 17-lower triangular plate, 18-long screw, 19-support, 20-worm, 21-worm wheel, 22-locking screw, 23-square head. DETAILED DESCRIPTION

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: Figures 1 to 5 As shown, a radially adjustable multi-head drilling device includes a fixed sleeve 1 for connecting to a drilling machine, and the main shaft 2 of the drilling machine is rotatably connected to the fixed sleeve 1; a support plate 3 is connected to the fixed sleeve 1 through an inclined rod 4, and three slide rails 5 are evenly connected to the support plate 3 in the circumferential direction; a slider 6 is slidably fitted in the slide rail 5, and an elastic member is connected between the slider 6 and the fixed sleeve 1; a central shaft 7 is connected to the main shaft 2 of the drilling machine, and the main shaft 2 of the drilling machine drives the central shaft 7; a driven shaft 8 is rotatably connected to the slider 6, and the bottom end of the driven shaft 8 is connected to a clamp for mounting a drill bit; a driving gear 9 is connected to the central shaft 7; a driven gear 10 is connected to the driven shaft 8; a transition gear 11 is meshed with the driving gear 9 and the driven gear 10; a rotating mechanism drives each transition gear 11 to revolve to increase or decrease the distance between the driven gear 10 and the driving gear 9.

[0028] The support plate 3 includes a central circular plate with three webs arranged in a ring-shaped pattern. Three slide rails 5 are connected to the bottom of the webs by bolts. One end of the slide rail 5 is connected to a baffle 12 .

[0029] The outer wall of the fixed sleeve 1 is connected to a jacket 13 , one end of the three inclined rods 4 is connected to the jacket 13 , and the other end is connected to the baffle 12 .

[0030] A slide groove is provided on the slide rail 5 , and the slider 6 is slidably fitted in the slide groove; the elastic member is a spring, one end of the spring is connected to the inner side of the slider 6 , and the other end is connected to the outer wall of the fixed sleeve 1 .

[0031] The driving gear 9 is connected to the bottom end of the central shaft 7 , the top end of the driven shaft 8 is rotatably connected to the slider 6 through a bearing, and the driven gear 10 is connected to the middle of the driven shaft 8 .

[0032] The central shaft 7 above the support plate 3 is rotatably connected to the upper triangular plate 15, and a spacer 16 is provided between the upper triangular plate 15 and the support plate 3. The bottom end of the central shaft 7 is rotatably connected to the lower triangular plate 17. The upper triangular plate 15 and the lower triangular plate 17 are connected by a long screw 18, and the three transition gears 11 are rotatably connected to the three ends of the lower triangular plate 17.

[0033] The rotating mechanism includes a support 19 , which is connected to the support plate 3 . A worm 20 is rotatably connected to the support 19 . A worm gear 21 is connected to the upper side of the upper triangular plate 15 via bolts, and the worm gear 21 is engaged with the worm 20 .

[0034] A locking screw 22 is connected to the support 19 , and the locking screw 22 can abut against the outer wall of one end of the worm 20 .

[0035] One end of the worm 20 is connected to a square head 23 .

[0036] The top end of the central shaft 7 is in the shape of a Morse cone for connection to the main shaft 2 of the drilling machine, and the bottom end of the driven shaft 8 is in the shape of a Morse cone for mounting a clamping seat.

[0037] The specific working principle of the present invention is as follows: Before operation, the fixed sleeve 1 is connected to the flange of the main shaft 2 of the drilling machine, and the central shaft 7 is powered by the main shaft 2 of the drilling machine.

[0038] During drilling, the drill bit moves downward along with the main spindle 2 of the drilling machine. The main spindle 2 of the drilling machine drives the center shaft 7 to rotate, the center shaft 7 drives the driving gear 9 to rotate, the driving gear 9 drives the transition gear 11 to rotate, the transition gear drives the driven gear 10 to rotate, and the driven gear 10 drives the driven shaft 8 to rotate so that the drill bit works to drill holes distributed in a circular array on the workpiece.

[0039] When the drill bit needs to be adjusted, loosen the locking screw 22, rotate the square head 23 clockwise with the tool, the worm 20 drives the worm wheel 21 to rotate in the forward direction, the worm wheel 21 drives the transition gear 11 to revolve, the transition gear 11 squeezes and pushes the driven gear 10, and the three sliders 6 move in the opposite direction, so that the diameter of the circle where the three drill bits are located increases. After the adjustment is completed, tighten the locking screw 22 to continue the drilling operation.

[0040] In addition, the square head 23 can also be rotated counterclockwise by the tool, and the worm 20 can reversely drive the worm wheel 21 to rotate, and the worm wheel 21 can drive the transition gear 11 to revolve. Under the action of spring tension, the driven gear 10 squeezes the transition gear 11, and the three sliders 6 move toward each other, so that the diameter of the circle where the three drill bits are located becomes smaller. After the adjustment is completed, tighten the locking screw 22 to continue the drilling operation.

[0041] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A radially adjustable multi-head drilling device, characterized in that: include: A fixed sleeve (1) is used for connecting to a drilling machine, and a main shaft (2) of the drilling machine is rotatably connected to the fixed sleeve (1); The support plate (3) is connected to the fixed sleeve (1) via the inclined tie rod (4), and a plurality of slide rails (5) are evenly connected to the support plate (3) in the circumferential direction; A slider (6) is slidably engaged with the slide rail (5), and an elastic member is connected between the slider (6) and the fixed sleeve (1); A central shaft (7) is connected to the main shaft (2) of the drilling machine, and the main shaft (2) of the drilling machine drives the central shaft (7); A driven shaft (8) is rotatably connected to the slider (6), and a clamping seat for mounting a drill bit is connected to the bottom end of the driven shaft (8); A driving gear (9) is connected to the central shaft (7); a driven gear (10) is connected to the driven shaft (8); and a transition gear (11) is meshed with the driving gear (9) and the driven gear (10). The rotating mechanism drives each transition gear (11) to revolve to increase or decrease the distance between the driven gear (10) and the driving gear (9).

2. A radially adjustable multi-head drilling device according to claim 1, characterized in that: The support plate (3) comprises a central circular plate, on which three webs are arranged in a ring-shaped array, three slide rails (5) are connected to the bottom of the webs via bolts, and one end of the slide rail (5) is connected to a baffle (12).

3. A radially adjustable multi-head drilling device according to claim 2, characterized in that: The outer wall of the fixed sleeve (1) is connected to a jacket (13), one end of the three inclined rods (4) is connected to the jacket (13), and the other end is connected to the baffle (12).

4. The radially adjustable multi-head drilling device according to claim 1, characterized in that: The slide rail (5) is provided with a slide groove, and the slider (6) is slidably matched with the slide groove; the elastic member is a spring, one end of the spring is connected to the inner side of the slider (6), and the other end is connected to the outer wall of the fixed sleeve (1).

5. A radially adjustable multi-head drilling device according to claim 1 or 4, characterized in that: The driving gear (9) is connected to the bottom end of the central shaft (7), the top end of the driven shaft (8) is rotatably connected to the slider (6) through a bearing, and the driven gear (10) is connected to the middle of the driven shaft (8).

6. The radially adjustable multi-head drilling device according to claim 1, characterized in that: The central shaft (7) above the support plate (3) is rotatably connected to an upper triangular plate (15), a spacer (16) is provided between the upper triangular plate (15) and the support plate (3), the bottom end of the central shaft (7) is rotatably connected to a lower triangular plate (17), the upper triangular plate (15) and the lower triangular plate (17) are connected via a long screw (18), and three transition gears (11) are rotatably connected to the three ends of the lower triangular plate (17).

7. The radially adjustable multi-head drilling device according to claim 6, characterized in that: The rotating mechanism includes a support (19), the support (19) is connected to the support plate (3), a worm (20) is rotatably connected to the support (19), a worm wheel (21) is connected to the upper side of the upper triangular plate (15) by bolts, and the worm wheel (21) is engaged with the worm (20).

8. The radially adjustable multi-head drilling device according to claim 7, characterized in that: A locking screw (22) is connected to the support (19), and the locking screw (22) can abut against the outer wall of one end of the worm (20).

9. The radially adjustable multi-head drilling device according to claim 7, characterized in that: One end of the worm (20) is connected to a square head (23).

10. The radially adjustable multi-head drilling device according to claim 1, characterized in that: The top end of the central shaft (7) is in the shape of a Morse cone for connection to the main shaft (2) of the drilling machine, and the bottom end of the driven shaft (8) is in the shape of a Morse cone for mounting a clamping seat.

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