WO2022052159A1

WO2022052159A1 - Drill bit grinding machine

Info

Publication number: WO2022052159A1
Application number: PCT/CN2020/116813
Authority: WO
Inventors: 虞荣江; 虞林隆
Original assignee: 浙江美日智能装备有限公司
Priority date: 2020-09-08
Filing date: 2020-09-22
Publication date: 2022-03-17
Also published as: CN212918690U

Abstract

A drill bit grinding machine, comprising a base (1), an electric motor box (2) arranged on the base (1), and an electric motor arranged in the electric motor box (2), wherein a grinding wheel (3) is arranged at an end of an output shaft of the electric motor; a grinding base (4) with a grinding hole is arranged on a side of the base (1) where the grinding wheel (3) is positioned; the base (1) is also provided with a regulating assembly which facilitates the movement and regulation of the grinding base (4); the grinding base (4) is fixedly connected to the regulating assembly by means of a connecting plate (5); a chuck assembly (6) for clamping a drill bit and in rotational fit with the drill bit is arranged in the grinding hole of the grinding base (4); and a regulating structure for regulating the position of the grinding base (4) relative to the grinding wheel (3) is arranged between the connecting plate (5) and the grinding base (4). The drill bit grinding machine has the advantages of easy operation and a high grinding accuracy.

Description

A drill grinder

technical field

The utility model belongs to the technical field of grinding machine equipment, and relates to a drill grinding machine.

Background technique

The drill grinder is a kind of regrinding of the worn drill bit, so that the drill bit can be used repeatedly and greatly prolong the service life of the drill bit. Therefore, some companies have developed a fully automated drill grinder equipped with a four-axis simultaneous servo motor, and re-grind the drill through automatic control, thereby greatly reducing the technical requirements for re-grinding of the drill, and can ensure the grinding High quality, and improve grinding efficiency through four-axis simultaneous servo motor. Although the drill grinding machine driven by the four-axis simultaneous servo motor can indeed automatically complete the re-grinding of the drill, the technical level and software and hardware costs of controlling the four-axis simultaneous movement of the servo motor are very high, which makes the four-axis simultaneous movement. The cost of the drill grinder is extremely high, which is a huge expense and burden for small and medium-sized enterprises, thus weakening the consumer's desire to purchase, but instead becoming an obstacle to sales.

Therefore, some companies re-grind manually, and the re-grinding work also distinguishes different types of grinding discs according to the parts of the grinding bits. Ordinary grinding machines only provide one type of grinding disc that can grind different parts. When grinding the drill bit The angle of the drill bit must be re-arranged for different parts and arranged on different feeding devices for regrinding of different parts. In this way, when the user constantly changes the grinding part, the disassembly and assembly of the drill bit to be ground must be continuously carried out. , resulting in a waste of time, very inconvenient to use, low grinding precision, and easy to warp during processing after clamping and locking, thus affecting the processing accuracy.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a precise, fast and easy-to-operate drill bit grinding machine for the above problems existing in the prior art.

The purpose of this utility model can be achieved through the following technical solutions: a drill grinding machine, comprising a machine base, a motor box arranged on the machine base, and a motor arranged in the motor box, and the end of the motor output shaft is provided with a grinding wheel , the machine seat is located on one side of the grinding wheel and is provided with a grinding seat with grinding holes, and the machine seat is also provided with an adjustment component that facilitates the movement and adjustment of the grinding seat. It is characterized in that the grinding seat is connected to the The adjusting components are fixedly connected, the grinding hole in the grinding seat is provided with a chuck assembly for holding the drill bit and rotating with it, and between the connecting plate and the grinding seat is provided for adjusting the grinding seat relative to each other. Adjustment structure at the position of the grinding wheel.

In the above-mentioned drill grinding machine, the collet assembly is composed of a collet sleeve and a locking ring, and a collet sleeve is installed between the collet sleeve and the grinding hole and is convenient for the collet sleeve to rotate. The rotating unit, the outer peripheral wall of the front end of the collet sleeve is provided with a radially outwardly protruding step portion, the diameter of the step portion increases step by step from the outside to the inside, and the step portion is provided with There are several grooves arranged along its circumferential direction, the locking ring is arranged on the step part and is connected with the step part, the locking ring is located at the front opening and is provided with an inner chamfer, the The outer peripheral wall of the front end of the stepped part is provided with an outer chamfer matched with the inner chamfer.

In the above drill grinding machine, the grinding seat is provided with a locking switch seat for preventing the rotation of the collet sleeve.

In the above-mentioned drill bit grinding machine, the adjustment structure includes a circular arc-shaped chute 1 and an arc-shaped sliding block arranged on the sliding chute 1 and capable of moving along its arc. The first groove is arranged on the end face of the connecting plate connected with the grinding seat, the sliding block is fixedly connected with the grinding seat, and the other end surface of the connecting plate is provided with a sliding block to lock the sliding block on the sliding groove one. The wrench is locked, and the bottom surface of the slot where the connecting plate is located at one slot of the chute is provided with a second chute which is convenient for the movement of the locking wrench.

In the above-mentioned drill grinding machine, a tool setting device capable of swinging in a horizontal direction is hinged on the motor box, and the tool setting device is provided with a pin rod that facilitates the horizontal swing of the tool setting device.

In the above-mentioned drill grinding machine, a camera assembly matched with the tool setting device and used for shooting is arranged on the base, and a display screen matched with the camera assembly is arranged on the motor box.

Compared with the prior art, the drill grinder has the following advantages:

1. The grinder is equipped with a camera, which is used for the positioning of the drill bit before grinding. After grinding, the drill is measured, and a self-centering drill with a flat relief angle and a variety of chisel edge forms can be ground, and the structure can be adjusted. And the setting of adjustment components can ensure the accuracy and symmetry of the drill bit, so that the drill bit has strong penetrating power and effectively prolongs the service life of the drill bit; and the grinding machine is accurate, fast, and simple to operate. It can be easily ground without skills, saving energy cost and improve efficiency.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of the drill grinding machine.

Figure 2 is a schematic top view of the drill grinding machine.

Fig. 3 is a schematic cross-sectional view of the drill bit grinding machine in the direction of Fig. 2A-A.

In the figure, 1, machine base; 2, motor box; 3, grinding wheel; 4, grinding seat; 5, connecting plate; 6, chuck assembly; 7, collet sleeve; 8, locking ring; 9, rotating unit; 10. Step; 11. Groove; 12. Locking switch seat; 13. Chute 1; 14. Slider; 15. Locking wrench; 16. Chute 2; 17. Tool setting device; 18. Pin rod ; 19. Camera assembly; 20. Display screen.

detailed description

The following are specific embodiments of the present utility model combined with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

As shown in Fig. 1, Fig. 2, Fig. 3, the drill grinding machine includes a machine base 1, a motor box 2 arranged on the machine base 1, and a motor with an output shaft arranged in the motor box 2, and the motor output The end of the shaft is provided with a grinding wheel 3, the machine base 1 is located on one side of the grinding wheel 3 and is provided with a grinding seat 4 with grinding holes, and the machine base 1 is also provided with an adjustment component that facilitates the movement and adjustment of the grinding seat 4. The adjustment component is composed of It is composed of a double-layer support plate and a rotating seat. An assembly plate is arranged between the double-layer support plate and the rotating seat. The assembly plate is also provided with a limiting unit. The lower carriage on the sliding seat can move longitudinally along the sliding seat and the upper carriage on the lower carriage which can move laterally along the lower carriage. The first drive unit that moves longitudinally, the lower carriage is provided with a second drive unit for driving the upper carriage to move laterally along the lower carriage, and the grinding seat 4 is fixedly connected to the adjusting assembly through the connecting plate 5. The grinding hole is provided with a chuck assembly 6 for holding the drill bit and rotating with it. Between the connecting plate 5 and the grinding seat 4 is an adjusting structure for adjusting the position of the grinding seat 4 relative to the grinding wheel 3. The adjusting structure includes a circular arc. A chute one 13 and a sliding block 14 which is arranged on the chute one 13 and can move along its arc and is in the shape of an arc, the chute one 13 is arranged on the connecting plate 5 and is connected with the grinding seat 4 The sliding block 14 is fixedly connected with the grinding seat 4, and the sliding block 14 drives the grinding seat 4 to adjust the position. The other end surface of the connecting plate 5 is provided with a sliding groove to lock the sliding block 14 on the sliding groove. The locking wrench 15 on the first 13, and the connecting plate 5 is located on the groove bottom surface of the sliding groove 1 13. There is a circular arc-shaped sliding groove 16 on the connecting plate 5, which is convenient for the locking wrench 15 to move with the slider 14. A stroke stop is provided.

In further detail, in order to prevent the drill bit from being lifted during processing and affecting the processing accuracy, the collet assembly 6 is composed of a collet sleeve 7 and a locking ring 8. The rotating unit 9 is installed on the collet sleeve 7 and is convenient for the rotation of the collet sleeve 7. The rotating unit 9 is composed of two rotating bearings, and the two rotating bearings are respectively arranged at the ports at the front and rear ends of the grinding holes. The outer peripheral wall of the front end portion located outside the grinding seat 4 is provided with a step portion 10 that protrudes radially outward. The diameter of the step portion 10 increases step by step from the outside to the inside. The groove 11 is arranged in the direction and extends to the sleeve of the collet sleeve 7 to make it elastic. The locking ring 8 is arranged on the stepped portion 10 and connected with the stepped portion 10. The locking ring 8 is located at the front end The opening is provided with an inner chamfer, the outer peripheral wall of the front end of the step portion 10 is provided with an outer chamfer matched with the inner chamfer, and the outer peripheral wall of the collet table located at the front end is also provided with a limit to prevent it from being assembled too deep. When the collet sleeve 7 clamps the workpiece, first remove the locking ring 8, open the opening of the collet sleeve 7 at the step part 10, put the drill bit in, and then reassemble the locking ring 8 so that the The step portion 10 at the collet sleeve 7 can realize the clamping function for the drill bit, so that the tool will not warp slightly during processing, thereby ensuring the processing accuracy.

In further detail, in order to prevent it from rotating during processing and at the same time to facilitate the adjustment of the tool, the grinding seat 4 is provided with a locking switch seat 12 that prevents the rotation of the collet sleeve 7. The locking switch seat 12 consists of the housing, the locking switch It consists of a plate, two springs, a return rod and a locking rod. The casing is disassembled and connected to the grinding seat 4. The upper end face of the casing is provided with a mounting groove for the locking switch The switch plate is movably connected by a pin shaft, the casing is located on the bottom surface of the groove of the installation groove and is provided with an installation groove which is recessed axially downward and is used for the installation of the return rod and the locking rod, and the casing is located at the installation groove at the locking rod It extends axially downward into the grinding seat 4 and communicates with the grinding hole in the grinding seat 4. The two springs are respectively sleeved on the return rod and the locking rod, and the outer peripheral walls of the locking rod and the return rod are A raised convex ring is arranged radially outwards, the setting of the convex ring prevents the locking rod and the return rod from being detached from the casing and fitted with the spring, and the upper end of the locking rod is fixedly connected with the locking switch plate, When the locking switch seat 12 is in the locked state, the locking switch plate is located at one end of the locking rod and is in contact with the bottom surface of the installation groove, and the end located at the return rod is lifted by the return rod. When adjustment is required , press the locking switch plate at one end of the return lever, and the locking switch plate lifts the end of the locking lever through the pin, thereby pulling up the locking lever, so that the collet sleeve 7 can be rotated and adjusted, and the spring makes the The return lever can push the locking switch plate back to the initial position after a few seconds, so that the locking lever can lock the collet sleeve 7 again.

In further detail, in order to ensure the machining accuracy without affecting the machining of the tool, the motor box 2 is hinged with a tool setting device 17 that can swing in the horizontal direction. The tool setting device 17 is provided with a pin that facilitates the horizontal swing of the tool setting device 17. When the tool setting device 17 is in a horizontal state, the tool setting surface provided thereon is parallel to the outer surface of the above-mentioned grinding wheel 3 .

More specifically, in order to improve the precision of tool setting, the machine base 1 is provided with a camera assembly 19 matched with the tool setting device 17 and used for shooting, and the motor box 2 is provided with a display screen 20 matched with the camera assembly 19 .

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Claims

A drill grinding machine, comprising a machine base (1), a motor box (2) arranged on the machine base (1), and a motor arranged in the motor box (2), the end of the motor output shaft is provided with a grinding wheel ( 3), the machine base (1) is provided with a grinding seat (4) with a grinding hole on one side of the grinding wheel (3), and the machine base (1) is also provided with a convenient grinding seat (4) to move and adjust. The adjusting assembly is characterized in that the grinding seat (4) is fixedly connected with the adjusting assembly through the connecting plate (5), and the grinding hole in the grinding seat (4) is provided with a hole for holding the drill bit In the chuck assembly (6) rotatably matched with it, an adjustment structure for adjusting the position of the grinding seat (4) relative to the grinding wheel (3) is provided between the connecting plate (5) and the grinding seat (4).
A drill bit grinding machine according to claim 1, characterized in that, the collet assembly (6) is composed of a collet sleeve (7) and a locking ring (8), and the collet sleeve (7) ) and the grinding hole is provided with a rotating unit (9) for installing the collet sleeve (7) and facilitating the rotation of the collet sleeve (7), the outer peripheral wall of the front end of the collet sleeve (7) is provided with a The stepped portion (10) protruding radially outward, the diameter of the stepped portion (10) increases step by step from the outside to the inside, the stepped portion (10) is provided with a plurality of cross-sections arranged along the circumferential direction thereof. Groove (11), the locking ring (8) is arranged on the stepped portion (10) and connected with the stepped portion (10), the locking ring (8) is located at the front opening and is provided with an inner For chamfering, the outer peripheral wall of the front end of the step portion (10) is provided with an outer chamfer matched with the inner chamfer.
A drill grinding machine according to claim 1, characterized in that, the grinding seat (4) is provided with a locking switch seat (12) for preventing the rotation of the collet sleeve (7).
A drill grinding machine according to claim 1, characterized in that, the adjusting structure comprises an arc-shaped chute 1 (13) and a chute 1 (13) provided on the chute 1 (13) and capable of moving along the A sliding block (14) that moves in an arc and is in the shape of an arc, the first sliding groove (13) is arranged on the end surface where the connecting plate (5) is connected with the grinding seat (4), and the sliding block (14) is connected to the The grinding seat (4) is fixedly connected to each other, the other end face of the connecting plate (5) is provided with a locking wrench (15) for locking the slider (14) on the first chute (13), and the connecting plate (5) A second chute (16) is provided on the bottom surface of the slot located at the first chute (13) to facilitate the movement of the locking wrench (15).
A drill grinding machine according to claim 1, characterized in that a tool setting device (17) capable of swinging in a horizontal direction is hinged on the motor box (2), and the tool setting device (17) is provided with There is a pin rod (18) that facilitates the horizontal swing of the knife setting device (17).
A drill grinding machine according to claim 1, characterized in that, a camera assembly (19) matched with a tool setting device (17) and used for photographing is provided on the machine base (1), and the A display screen (20) matched with the camera assembly (19) is arranged on the electric motor box (2).