CN101823218B - Multi-functional cutter grinding machine - Google Patents

Abstract

The invention provides a multifunctional tool grinding machine, which belongs to the technical field of machining equipment. It solves the problem that the existing grinding and drilling machine cannot complete the grinding of different kinds of tools. The multifunctional tool grinding machine includes a body, and the body is provided with at least one first grinding hole for grinding an end mill and at least one second grinding hole for grinding a tap, and the first grinding hole There are grinding wheels connected with the drive mechanism at the inner end of the second grinding hole, and there are also several pieces on the fuselage for fixing the cutter and can be respectively installed in the first grinding hole and the first grinding hole when the cutter is fixed on it. Clamping mechanism for the second grinding hole. The invention has the advantages of simple and compact structure, etc., and can grind end mills and taps.

Description

Multifunctional Tool Grinding Machine

technical field

The invention belongs to the technical field of machining equipment, and relates to a grinding machine, in particular to a multifunctional cutter grinding machine.

Background technique

In parts processing, drilling and thread processing are the most common. The premise of thread processing is to drill the bottom hole first. The end mill can be used for milling grooves and holes of various shapes on parts, step surfaces, sides, outer curved surfaces and various cams, etc., and the processed plane surface is smooth. Taps are used for processing threaded connections. After the tool is used for a period of time, it will wear out and the processing efficiency will decrease. At present, many cutting tools are discarded or reground after being damaged. Manual grinding requires a higher technical level of workers, and the quality of grinding is also unstable.

For this reason, people have carried out long-term exploration, have proposed various equipment that can repair a certain kind of cutter alone, but do not have the equipment that multiple cutter sharpening functions are integrated. For example, the Chinese patent literature discloses a grinding drill [application number: CN200920014738.8], which includes a machine base, a cover body, a motor, a grinding wheel, a drill grinding seat, a drill back angle grinding seat, a drill positioning device and a drill chuck ; It is characterized in that: the drill chuck is composed of a tapered sleeve, a clip, a cage, a knob and an elastic steel frame; the drill bit positioning device is composed of a positioning seat, a button, a stopper and an elastic clip. This grinding machine can grind the twist drill bit. Others have invented a multi-model tap grinding machine [Application No.: CN200510061284.6] which can repair different types of old taps. The handle connected with the connecting arm, the connecting body, and the grinding wheel motor are characterized in that: the connecting body is connected with a lever arm.

Although the above scheme has improved the grinding performance to a certain extent, it still cannot complete the grinding of different types of knives. On the other hand, taps can be divided into right-handed thread taps and left-handed thread taps according to the direction of thread rotation. Among them, right-handed thread taps are the most common, while left-handed thread taps are used for processing left-handed threads. few. Existing small tap grinding machines generally can only grind right-handed thread taps. In addition, the end grinding of the end mill is mainly to grind the rake angle, relief angle, and auxiliary relief angle of the milling cutter. For end mills with 2 edges, 3 edges, and 4 edges, the form of the edge after grinding is slightly different. . At present, the grinding of 3-blade and 4-blade milling cutters is usually divided into two different grinding holes for grinding.

Contents of the invention

The object of the present invention is to solve the above problems, and to provide a multifunctional tool grinding machine with simple and compact structure, capable of grinding end mills and taps.

In order to achieve the above object, the present invention adopts the following technical solutions: the multifunctional tool grinding machine includes a fuselage, which is characterized in that the fuselage is provided with at least one first grinding machine for grinding end mills Holes and at least one second grinding hole for grinding taps, grinding wheels connected with the drive mechanism are provided at the inner ends of the first grinding hole and the second grinding hole, and several grinding wheels for Clamping means for securing the tool and capable of fitting respectively in said first grinding hole and said second grinding hole when the tool is fixed thereto.

Since the first grinding hole for grinding the end mill and at least one second grinding hole for grinding the tap are respectively provided, the present invention can grind two kinds of tools. The overall structure is compact, the function is perfect, and the cost is low.

In the above-mentioned multi-functional tool sharpening machine, the body is provided with several tool setting mechanisms that can adjust the position of the tool when the clamping mechanism installs the tool, and the clamping mechanism is arranged on the tool setting mechanism and One to one correspondence. Since the tool setting mechanism is provided, the tool can be positioned conveniently and the grinding quality can be improved.

In the above-mentioned multifunctional tool grinding machine, the clamping mechanism includes a cylindrical collet seat, a collet and a collet nut, the collet is inserted into the collet seat, and the front end of the collet is conical. Shaped and in contact with the tapered surface of the inner wall of the front end of the collet seat, the collet nut and the rear end of the collet seat are connected through threads, and the collet nut can push the collet to move forward along the axial direction of the collet seat and make the collet The front end of the headstock is tightened.

The tool is inserted in the collet, and when the collet nut is installed on the rear end of the collet seat, as the collet nut rotates, its front end pushes the collet to move forward. Since the front end of the collet has several jaws and is tapered, when the front end of the collet contacts the tapered surface of the inner wall of the front end of the chuck seat, the front end of the collet is tightened, and the tool is firmly clamped.

In the above-mentioned multifunctional tool sharpening machine, the tool setting mechanism includes a seat body arranged on the fuselage. One end of the seat body has a positioning hole that can be inserted into the chuck seat, and the other end is provided with a hole that can be in contact with the tool. The knife setting plate is provided with a limit plate on one side of the knife setting plate, and a scale line is arranged on the knife setting plate.

In the above-mentioned multifunctional tool sharpening machine, the inner side of the chuck nut is provided with a bearing, and the outer surface of the rear end of the chuck seat has several evenly distributed gaps.

In the above-mentioned multi-function cutter grinding machine, the first grinding hole is arranged on the grinding seat, and the grinding seat is arranged on a moving mechanism that can drive its longitudinal movement and lateral movement, and the described grinding seat can be relatively Swing on the mobile mechanism.

In the above-mentioned multi-functional cutter grinding machine, the moving mechanism includes a horizontal carriage and a longitudinal carriage, the grinding seat is arranged on the longitudinal carriage, and a device capable of driving the transverse carriage to move is provided on the fuselage. Horizontal driving mechanism, the horizontal driving mechanism includes a horizontal adjustment handle, the horizontal carriage is provided with a longitudinal driving mechanism capable of driving the longitudinal carriage to move, and the longitudinal driving mechanism includes a longitudinal adjustment handle.

The grinding of tap cutting cone teeth is carried out with the plane of the grinding wheel, and the grinding of the inclination angle of the tap edge is carried out with the rounded corner of the grinding wheel. First swing the grinding seat to a position tangent to the grinding wheel, and then adjust to the fillet of the grinding wheel to grind the blade inclination angle of the tap.

In the above-mentioned multifunctional cutter grinding machine, the first threaded hole that enables the grinding wheel to grind the left-handed thread when the limit screw is installed on the grinding seat and the first threaded hole that enables the grinding wheel to grind the right-hand thread when the limit screw is installed Second threaded hole for screw thread.

In the above-mentioned multifunctional tool sharpening machine, the front end of the chuck seat has several positioning notches and positioning steps that can be matched with the second threaded holes.

Compared with the existing technology, the advantages of the multifunctional tool grinding machine are: 1. Reasonable design, simple and compact structure, various functions and wide application range. 2. High working stability, easy to operate and use, effectively improving the grinding quality.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure provided by the present invention.

Fig. 2 is a schematic perspective view of another perspective structure provided by the present invention.

Fig. 3 is a perspective view of the clamping mechanism provided by the present invention.

Fig. 4 is a sectional view of the clamping mechanism provided by the present invention.

In the figure, the fuselage 1, the first grinding hole 2, the second grinding hole 3, the clamping mechanism 4, the collet seat 41, the collet 42, the collet nut 43, the bearing 44, the knife setting mechanism 5, the seat body 51, Positioning hole 52, knife setting plate 53, limit plate 54, scale line 55, grinding seat 6, first threaded hole 61, second threaded hole 62, horizontal carriage 71, longitudinal carriage 72, transverse adjustment handle 73, longitudinal Adjust handle 74, stop screw 7, cutter 8.

Detailed ways

As shown in Figures 1 and 2, the multifunctional tool grinding machine includes a body 1, on which three first grinding holes 2 for grinding end mills and a first grinding hole 2 for grinding taps are arranged. Two grinding holes 3. Both the first grinding hole 2 and the inner end of the second grinding hole 3 are provided with grinding wheels connected with the driving mechanism. Two clamping mechanisms 4 are provided on the body 1 for fixing the cutter 8 and can be respectively installed in the first grinding hole 2 and the second grinding hole 3 when the cutter 8 is fixed thereon. The fuselage 1 is provided with two tool setting mechanisms 5 that can adjust the position of the tool 8 when the clamping mechanism 4 is installed with the tool 8, and the clamping mechanism 4 is arranged on the tool setting mechanism 5 and corresponds one by one.

As shown in FIGS. 3 and 4 , the clamping mechanism 4 includes a cylindrical chuck seat 41 , a collet 42 and a chuck nut 43 . The collet 42 is inserted into the chuck seat 41 , and the front end of the collet 42 has several claws and is tapered. The front end of the collet 42 is in contact with the tapered surface of the inner wall of the front end of the chuck seat 41 . The collet nut 43 and the rear end of the collet seat 41 are threadedly connected, and the collet nut 43 can push the collet 42 to move forward along the axial direction of the collet seat 41 and tighten the front end of the collet seat 41 . Cutter is inserted in the collet, when collet nut 43 is installed on collet seat 41 rear end, along with the rotation of collet nut 43, its front end pushes collet 42 to move forward. When the front end of the collet 42 is in contact with the tapered surface of the inner wall of the front end of the chuck seat 41, the front end of the collet 42 is tightened, and the tool 8 is firmly clamped. The inner side of the collet nut 43 is provided with a bearing 44, and the outer surface of the rear end of the collet seat 41 has a number of evenly distributed gaps. The bearing 44 is not only comfortable to operate during grinding, prolongs the service life, but also improves the precision of grinding.

As shown in Figures 3 and 4, the tool setting mechanism 5 includes a seat body 51 arranged on the fuselage 1. One end of the seat body 51 has a positioning hole 52 that can be inserted into the chuck seat 41, and the other end is provided with a hole that can be in contact with the tool. The knife setting plate 53 is provided with a limiting plate 54 on one side of the knife setting plate 53 , and a scale line 55 is provided on the knife setting plate 53 . Through the tool setting mechanism 5, the tool 8 is accurately set before grinding, so as to determine the grinding position and the grinding allowance.

The positioning hole 52 and the positioning boss on the tool setting mechanism 5 can accurately position the clamping mechanism 4 . The limit plate 54 and the knife setting plate 53 on the tool setting mechanism 5 are used to determine the length and angle of the tool 8 . A scale mark 55 is provided on the upper end of the knife setting plate 53 , so that it can be adjusted to a corresponding position according to the size of the diameter of the knife 8 . The clamping mechanism 4 is positioned on the tool setting mechanism 5, and after the cutter 8 is accurately positioned on the limiting plate 54 and the tool setting plate 53, the clamping mechanism 4 is locked, and the tool 8 has just completed the accurate tool setting work.

The first grinding hole 2 is arranged on the grinding seat 6, which is arranged on a moving mechanism capable of driving the grinding seat 6 to move longitudinally and laterally, and the grinding seat 6 can swing relative to the moving mechanism. The moving mechanism includes a horizontal carriage 71 and a longitudinal carriage 72, and the grinding seat 6 is arranged on the longitudinal carriage 72. The fuselage 1 is provided with a transverse driving mechanism capable of driving the transverse carriage 71 to move. The horizontal driving mechanism includes a horizontal adjustment handle 73 , and the horizontal carriage 71 is provided with a longitudinal driving mechanism capable of driving the longitudinal carriage 72 to move, and the longitudinal driving mechanism includes a longitudinal adjustment handle 74 . The grinding seat 6 is provided with a first threaded hole 61 that enables the grinding wheel to grind a left-handed thread when the limit screw 7 is installed, and a second threaded hole 62 that enables the grinding wheel to grind a right-handed thread when the limit screw 7 is installed. The front end of the chuck seat 41 has several positioning notches and positioning steps that can be matched with the second threaded hole 62 . Grinding seat 6 is hinged on the slide table, and this slide table is fixed on the longitudinal carriage 72 .

Drive the grinding wheel to rotate, insert the clamping mechanism 4 after tool setting into the first grinding hole 2 or the second grinding hole 3, and the tool 8 can be ground. The grinding wheel used for grinding the tool is made of super wear-resistant electroplated superhard grinding tool with extremely high speed to ensure high cutting and long durability of the grinding wheel. The position of each grinding hole is processed through heart calculation, which ensures that the cutter 8 and the emery wheel have correct positions during grinding. The clamping mechanism 4 is correctly positioned in the first grinding hole 2 or the second grinding hole 3 . When grinding, only need to rotate the clamping mechanism 4 left and right, the tool 8 can be quickly finished grinding.

According to the direction of thread rotation, the tool 8 taps can be divided into right-handed thread taps and left-handed thread taps. Among them, right-handed thread taps are the most common, while left-handed thread taps are used to process left-handed threads, which are mainly used in special occasions and are used in less quantities. When the limit screw 7 is installed on the first threaded hole 61, the grinding wheel can be ground to the left-handed thread, and when the limit screw 7 is installed on the second threaded hole 62, the emery wheel can be ground to the right-handed thread. The rotation angle of the clamping mechanism 4 is limited by the limit screw 7 .

The tool has cutting cone teeth and edge inclination on the 8 taps. The inclination angle of the blade can make the chips flow out to the unprocessed direction, which is beneficial to improve the smoothness of the threaded hole and the cutting performance of the tap. The grinding of the tap cutting taper teeth is carried out with the plane of the grinding wheel, and the grinding of the inclination angle of the tap edge is carried out with the rounded corner of the grinding wheel. The moving mechanism can move back and forth left and right and adjust the grinding seat 6. In addition, the grinding seat 6 swings up and down. After the grinding seat 6 swings to the position tangent to the emery wheel, the blade inclination angle of the screw tap can be ground when the cutter 8 is adjusted to the fillet position of the emery wheel by adjusting the moving mechanism.

Tool 8 The end grinding of the end mill is mainly to grind the rake angle, back angle and auxiliary back angle of the end mill. For 2-blade, 3-blade, and 4-blade end mills, the form of the edge after grinding is slightly different: the keyway and flat-bottomed hole are processed, and the bottom of the hole must be countersinked. There are two blades connected together. The first grinding holes in the present invention are all processed by numerical control. All types of first grinding holes 2 are installed on the same body 1, which ensures the unity of the grinding allowance and the grinding reference. The grinding of the 3-edged and 4-edged blades in the present invention is in the same first grinding hole 2 .

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention 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 present invention or go beyond the definition of the appended claims range.

Although the body 1, the first grinding hole 2, the second grinding hole 3, the clamping mechanism 4, the chuck seat 41, the collet 42, the chuck nut 43, the bearing 44, the knife setting mechanism 5, Seat body 51, positioning hole 52, knife setting plate 53, limit plate 54, scale line 55, grinding seat 6, first threaded hole 61, second threaded hole 62, horizontal carriage 71, longitudinal carriage 72, lateral adjustment Terms such as handle 73, longitudinal adjustment handle 74, stop screw 7, cutter 8, but do not exclude the possibility of using other terms. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (7)

1. multi-functional cutter grinding machine, comprise fuselage (1), it is characterized in that, described fuselage (1) is provided with at least one first grinding hole (2) that is used for the reconditioning end mill(ing) cutter and at least one is used for second grinding hole (3) of reconditioning screw tap, inner place is equipped with and the joining emery wheel of driving mechanism at the first grinding hole (2) and the second grinding hole (3), also is provided with several and is used for fixed cutting tool (8) and can be loaded on respectively the clamp mechanism (4) of above-mentioned the first grinding hole (2) and the second grinding hole (3) when being fixed thereon when cutter (8) on fuselage (1); Described the first grinding hole (2) is arranged on the grinding base (6), and this grinding base (6) is arranged in the travel mechanism that can drive its longitudinal shift and transverse shift, and described grinding base (6) can swing with respect to travel mechanism; Described travel mechanism comprises cross slide (71) and vertical planker (72), described grinding base (6) is arranged on vertical planker (72), be provided with the transversal driving mechanism that can drive cross slide (71) movement at fuselage (1), described transversal driving mechanism comprises a lateral adjustments handle (73), described cross slide (71) is provided with and can drives the mobile longitudinal driving mechanism of vertical planker (72), and described longitudinal driving mechanism comprises a vertical regulating handle (74); Grinding base (6) is hinged on the slide unit, and grinding base (6) can swing up and down, and this slide unit is fixed on vertical planker (72).

2. multi-functional cutter grinding machine according to claim 1, it is characterized in that, described fuselage (1) is provided with several tool setting mechanisms (5) that can adjust the tool position when clamp mechanism (4) mounting cutter, and it is upper and corresponding one by one that described clamp mechanism (4) is arranged on tool setting mechanism (5).

3. multi-functional cutter grinding machine according to claim 2, it is characterized in that, described clamp mechanism (4) comprises the base of the carrier head (41) of tubular, collet chuck (42) and chuck nut (43), described collet chuck (42) inserts in the base of the carrier head (41), the front end of collet chuck (42) is tapered and contact with the taper surface of base of the carrier head (41) front inner wall, and described chuck nut (43) can promote collet chuck (42) with base of the carrier head (41) rear end by thread connection and chuck nut (43) and axially move forward and make base of the carrier head (41) front end to tighten up along base of the carrier head (41).

4. multi-functional cutter grinding machine according to claim 3, it is characterized in that, described tool setting mechanism (5) comprises the pedestal (51) that is arranged on the fuselage (1), end at pedestal (51) has the locating hole (52) that can insert base of the carrier head (41), the other end be provided with can contact with cutter to knife plate (53), be provided with limiting plate (54) in the side to knife plate (53), knife plate (53) is being provided with graduation mark (55).

5. multi-functional cutter grinding machine according to claim 4 is characterized in that, described chuck nut (43) inboard is provided with bearing (44), and described base of the carrier head (41) rear end lateral surface has some uniform breach.

6. multi-functional cutter grinding machine according to claim 1, it is characterized in that, described grinding base (6) is provided with first screwed hole (61) that can make emery wheel reconditioning left hand thread when mounting limit screw (7) and can makes second screwed hole (62) of emery wheel reconditioning right-handed thread when mounting limit screw (7).

7. multi-functional cutter grinding machine according to claim 5 is characterized in that, described base of the carrier head (41) front end has some locating notch and positioning steps that can coincide with the second screwed hole (62).

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