WO2022256998A1

WO2022256998A1 - Drill bit grinding machine

Info

Publication number: WO2022256998A1
Application number: PCT/CN2021/098758
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: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-12-15

Abstract

A drill bit grinding machine, comprising a base (1), a motor box (2) provided on the base, and a motor provided in the motor box. A grinding wheel (3) is provided at an end of an output shaft of the motor; a grinding seat (4) having a grinding hole is provided on the side of the base where the grinding wheel is located; the base is also provided with an adjustment assembly which facilitates the movement and adjustment of the grinding seat; the grinding seat is fixedly connected to the adjustment assembly by means of a connecting plate (5); a chuck assembly (6) used for clamping a drill bit and in rotational fit with the drill bit is provided in the grinding hole of the grinding seat; and an adjustment structure used for adjusting the position of the grinding seat relative to the grinding wheel is provided between the connecting plate and the grinding seat. The grinding machine is high in grinding precision and simple to operate.

Description

drill bit grinder

technical field

The utility model belongs to the technical field of grinder equipment and relates to a drill bit grinder.

Background technique

The drill bit grinder is a kind of regrinding of the used drill bit with worn cutting edge, so that the drill bit can be repeatedly ground and used, which greatly prolongs the service life of the drill bit. Therefore, some companies have developed a fully automated drill grinder equipped with a four-axis synchronous servo motor to regrind the drill through automatic control, thereby greatly reducing the technical requirements for regrinding the drill and ensuring the quality of the drill after grinding. Quality, and the grinding efficiency is improved through the four-axis synchronous servo motor. Although the drill bit grinding machine driven by the four-axis synchronous servo motor can automatically complete the regrinding of the drill bit, the technical level and the cost of software and hardware for controlling the four-axis synchronous servo motor are very high, so the four-axis synchronous motion The cost of drill grinding machines is extremely high, which is a huge expense and burden for small and medium-sized enterprises, thus weakening consumers' desire to purchase, and instead becoming an obstacle to sales.

Therefore, some enterprises regrind manually, and the regrinding work depends on the position of the drill bit to distinguish different types of grinding discs. Ordinary grinders only provide one kind of grinding disc that can grind different parts. The angle of the drill bit must be re-set up for different parts and configured on different feeding devices for regrinding of different parts. In this way, when the user constantly changes the grinding position, the drill bit to be ground must be continuously disassembled and assembled. , resulting in a waste of time, very inconvenient to use, low grinding accuracy, and at the same time, it is easy to warp during processing after clamping and locking, thus affecting the processing accuracy.

Contents of the invention

The purpose of the utility model is to provide an accurate, fast and easy-to-operate drill grinding machine for the above-mentioned problems in the prior art.

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

In the above-mentioned drill bit grinding machine, the chuck assembly is composed of a chuck sleeve and a locking ring, and there is a gap between the chuck sleeve and the grinding hole for the chuck sleeve to be installed and to facilitate the rotation of the chuck sleeve. The rotating unit, the outer peripheral wall of the front end of the chuck 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 sectional grooves arranged along its circumferential direction, the locking ring is arranged on the step part and connected with the step part, the locking ring is provided with an inner chamfer at the front opening, the An outer chamfer matched with the inner chamfer is provided on the outer peripheral wall of the front end of the stepped portion.

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

In the aforesaid drill grinding machine, the adjustment structure includes an arc-shaped chute and an arc-shaped sliding block that is arranged on the chute and can move along its arc. Groove 1 is arranged on the end surface of the connection plate connected with the grinding seat, the slider is fixedly connected with the grinding seat, and the other end surface of the connection plate is provided with a locking mechanism for locking the slider on the chute 1. Lock the wrench, and the bottom surface of the groove where the connecting plate is located at the first chute is provided with a second chute to facilitate the movement of the locking wrench.

In the above-mentioned drill grinding machine, a tool setting device capable of swinging in the horizontal direction is hinged on the motor box, and a pin bar is provided on the tool setting device to facilitate 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, this drill grinder has the following advantages:

1. The grinding machine has its own camera, which is used for positioning the drill bit before grinding, and measuring the drill bit after grinding. It can grind out self-centering drills with flat relief angles and various chisel blade forms, and adjust the structure And the setting of the adjustment components can ensure the precision of the drill bit, the symmetry is good, the penetrating power of the drill bit is strong, and the service life of the drill bit is effectively extended; moreover, the grinding machine is accurate and fast, and the operation is simple, and it can be easily ground without skill, saving cost and improve efficiency.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the drill grinding machine.

Fig. 2 is a top view structural diagram of the drill grinding machine.

Fig. 3 is a schematic cross-sectional structural diagram of the drill 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. chuck sleeve; 8. locking ring; 9. rotating unit; 10. Step part; 11. Grooving; 12. Locking switch seat; 13. Chute one; 14. Slider; 15. Locking wrench; 16. Chute two; 17. Tool setting device; 18. Pin rod ; 19, camera assembly; 20, display screen.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

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

In further detail, in order to prevent the drill bit from tilting during processing and affect the processing accuracy, the chuck assembly 6 is composed of a chuck sleeve 7 and a locking ring 8, and a set is provided between the outer peripheral wall of the chuck sleeve 7 and the inner peripheral wall of the grinding hole. The chuck sleeve 7 is installed and convenient to the rotating unit 9 of the chuck sleeve 7. The rotating unit 9 is composed of two rotating bearings. The two rotating bearings are respectively arranged at the ports of the front and rear ends of the grinding hole. The front end is located on the outer peripheral wall of the grinding seat 4, and a radially outwardly protruding step portion 10 is provided. The diameter of the step portion 10 increases step by step from the outside to the inside. The direction is set and extends to the body of the chuck sleeve 7 and makes it have an elastic split groove 11. The locking ring 8 is arranged on the step portion 10 and connected with the step portion 10. The locking ring 8 is located at the front end The opening is provided with an inner chamfer, and the outer peripheral wall of the front end of the step part 10 is provided with an outer chamfer matching the inner chamfer. ring, when the chuck sleeve 7 clamps the workpiece, the locking ring 8 is removed first, the opening of the chuck sleeve 7 at the step portion 10 is opened, and the drill bit is put in, and then the locking ring 8 is reassembled, so that The step portion 10 at the chuck sleeve 7 can realize the clamping function for the drill bit, so that the tool will not vibrate slightly during machining, thereby ensuring the machining accuracy.

To further elaborate, in order to prevent it from rotating during processing and to facilitate the adjustment of the knife, the grinding seat 4 is provided with a locking switch seat 12 that prevents the chuck sleeve 7 from rotating. The locking switch seat 12 is composed of a housing, a locking switch plate, two springs, a return lever and a locking lever, the housing is disassembled and connected to the grinding seat 4, and the upper end surface of the housing is provided with a mounting groove for the locking switch plate to be installed, and is locked with the locking The switch plate is movably connected by the pin shaft, and the bottom surface of the housing located in the installation groove is provided with an axially downward recessed installation groove for the installation of the return rod and the locking rod, and the housing is located in the installation groove at the locking rod. Axially extending downward into the grinding seat 4 and communicating 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 respectively A radially outwardly protruding convex ring is provided, and the setting of the convex ring prevents the locking rod and the return rod from detaching from the casing sleeve and cooperates with the spring, and the upper end of the locking rod is firmly connected with the locking switch plate. When the locking switch base 12 is in the locked state, the end of the locking switch plate located on the locking lever fits with the bottom surface of the installation groove, and the end located on the return lever is tilted up through the return lever, when adjustment is required , press the lock switch plate at one end of the return lever, the lock switch plate lifts the end of the lock lever through the pin shaft, thereby pulling up the lock lever, so that the chuck 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 through a few seconds, so that the locking lever is locked to the chuck 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 pins that facilitate 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 on it is parallel to the outer surface of the above-mentioned grinding wheel 3 .

In further detail, in order to improve the accuracy 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 only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims

A kind of drill grinder, comprises support (1), is located at the motor box (2) on the support (1) and is arranged on the motor in the motor box (2), the end of this motor output shaft is provided with emery wheel ( 3), the base (1) is located on one side of the grinding wheel (3) and is provided with a grinding base (4) with a grinding hole, and the base (1) is also provided with a grinding base (4) that facilitates the movement and adjustment of the grinding base (4). The adjustment assembly is characterized in that the grinding seat (4) is fixedly connected with the adjustment assembly through a connecting plate (5), and the grinding hole in the grinding seat (4) is provided with a And the collet assembly (6) which rotates with it, and 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 grinding machine according to claim 1, characterized in that, the chuck assembly (6) is composed of a chuck sleeve (7) and a locking ring (8), and the chuck sleeve (7) ) and the grinding hole are provided with a rotating unit (9) for the installation of the chuck sleeve (7) and for the rotation of the chuck sleeve (7). The outer peripheral wall of the front end of the chuck sleeve (7) is provided with radially outward protruding step portion (10), the diameter of the step portion (10) increases step by step from the outside to the inside, and the step portion (10) is provided with several cross-sections arranged along its circumferential direction Groove (11), the locking ring (8) is set on the step portion (10) and connected with the step 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 matching the inner chamfer.
A drill bit grinding machine according to claim 1, characterized in that, the grinding seat (4) is provided with a locking switch seat (12) which prevents the chuck sleeve (7) from rotating.
A kind of drill grinding machine according to claim 1, characterized in that, the adjustment structure includes a circular arc-shaped chute one (13) and is arranged on the chute one (13) and can be moved along it. The slider (14) that moves in an arc and is arc-shaped, the chute one (13) is arranged on the end face that the connecting plate (5) is connected with the grinding seat (4), and the slider (14) and The grinding seats (4) are fixedly connected, and the other end surface of the connecting plate (5) is provided with a locking wrench (15) for locking the slider (14) on the chute one (13), and the connecting plate (5) A chute 2 (16) convenient to the movement of the locking wrench (15) is provided on the bottom surface of the chute 1 (13).
A drill grinder according to claim 1, characterized in that, said motor box (2) is hinged with a tool setting device (17) that can swing in the horizontal direction, and the tool setting device (17) is provided with There is a pin bar (18) that is convenient for the horizontal swing of the knife setting device (17).
A kind of drill grinding machine according to claim 1, characterized in that, the base (1) is provided with a camera assembly (19) that is matched with the tool setting device (17) and is used for shooting, the A display screen (20) matched with the camera assembly (19) is arranged on the motor box (2).