CN203077021U - Fully-automatic cutter grinder for saw-blade milling cutter - Google Patents

Abstract

The utility model discloses a fully-automatic cutter grinder for a saw-blade milling cutter, which relates to a cutter grinder. The fully-automatic cutter grinder is provided with a grinding head support, an upper movable plate, a cam translation plate, an E-shaped frame, a cam, a speed reduction motor, a cam key, a steel ball, a pull plate, a left-upper guide rail side, a right-upper guide rail side, a lower movable plate, a guide column head upper support seat, a slide shaft, a guide column head lower support seat, a table plate, a right movable plate, an L-shaped guide rail, a grinding head shaft, a grinding head shaft outer sleeve, a grinding wheel, a small belt wheel, a grinding head support, a grinding head small belt wheel key, a motor, a large belt wheel, a lower support, a belt wheel key, a belt wheel motor shaft, a first T-shaped seat, a third T-shaped seat, a second T-shaped seat, an adjusting bolt, a rotary transmission shaft, a rotary shaft housing, a tooth cutter, a stepper motor, a front cover plate, a side cover plate, a lower cover plate, a right-side cover plate, a rear small cover plate, a middle cover plate, a left-rear cover plate, a power switch, a circular-head inclined thread hole handle, a belt and an upper support seat baring. With the adoption of the fully-automatic cutter grinder, a workpiece can be automatically machined on a small table-type machine bed, and the production cost is reduced while the machining accuracy of the blade is ensured.

Description

Saw blade milling cutter automatic sharpening machine

technical field

The utility model relates to a sharpening machine, in particular to an automatic sharpening machine for saw blades and milling cutters.

Background technique

In mechanical processing, the grinding problem of thin slice saw blade milling cutter is often encountered. Many manufacturers use tool grinders or ordinary grinding wheels for grinding. However, the tool grinding machine is expensive, inefficient, and troublesome to operate, and the manual grinding of ordinary grinding wheels cannot guarantee the accuracy. General CNC machine tools are expensive, resulting in increased maintenance and production costs.

The existing simple CNC knife sharpening machine is mainly used for sharpening cutting knives. The machine tool is composed of a grinding head, a workbench, a bed, and a motor. The structure is relatively simple, but the control system uses a simple control circuit. Its accuracy and stability The performance is not as good as the control system based on the single chip microcomputer. The CNC system used in the aforementioned tool grinding machine is very expensive, while the simple control of the single-chip microcomputer has great advantages and exclusiveness, and the price is low.

Contents of the invention

The purpose of the utility model is to solve the problems of high precision and high production cost of the existing machine tools for processing saw blades and milling cutters, and provide a saw that can automatically process workpieces on small desktop machine tools and reduce production costs while ensuring the processing accuracy of the blades. Sheet milling cutter automatic sharpening machine.

The utility model is provided with a grinding head support, an upper movable plate, a cam translation plate, an E-shaped frame, a cam, a decelerating motor, a cam key, a steel ball, a pull plate, an upper left guide rail edge, an upper right guide rail edge, a lower movable plate, and an upper guide column head. Support, sliding shaft, lower support of guide column head, platen, right movable plate, L-shaped guide rail, grinding head shaft, grinding head shaft outer cover, grinding wheel, small pulley, grinding head bracket, grinding head small pulley key, motor, Large pulley, lower bracket, pulley key, pulley motor shaft, 1st T-shaped seat, 3rd T-shaped seat, 2nd T-shaped seat, adjusting bolt, rotary transmission shaft, rotary shaft shell, gear cutter, stepping motor, front cover Plate, side cover, lower cover, right side cover, rear small cover, middle cover, left rear cover, power switch, round head oblique threaded hole handle, belt and upper support bearing;

The grinding head shaft is inserted into the grinding head support along the axis hole of the grinding head support. The two ends of the grinding head support are respectively equipped with bearings. The bearing end caps of the grinding head shaft are locked at both ends of the grinding head support. The inner sleeve is on the grinding head shaft, and it is closely matched with the tapered step of the grinding head shaft. The grinding wheel is placed on the step of the outer casing of the grinding head shaft. Align the key of the small pulley of the grinding head so that the small pulley and the shaft of the grinding head form a tight fit; The lower support of the column head is set in the sliding shaft;

The two ends of the rotary transmission shaft are respectively provided with bearings, the rotary shaft casing and the gear cutter are set on the rotary transmission shaft, and the rotary shaft casing is fixed on the upper movable plate by bolts and pins;

The motor shaft of the geared motor is put into the stepped cylinder of the E-shaped frame. The cam key fixes the cam on the motor shaft of the geared motor. The motor shaft of the geared motor is fixed by a pin and a coupling, and the geared motor is fixed under the E-shaped frame. bottom plate;

The platen is set on the grinding head support, the first T-shaped seat is locked on the leftmost end of the platen with screws, the lower support of the guide column head is locked on the upper and lower edges of the left end of the platen, and the lower movable plate is set on the lower support of the guide column head and placed In the center of the two sliding shaft assemblies, lock the upper support of the guide column head on the sliding shaft assembly to the lower movable plate, set the pull plate at the tail of the adjusting bolt, and tightly fit the pull plate on the lower movable plate, the upper right guide rail edge and the upper left The edge of the guide rail is fixed on the lower movable plate through screw connection, the steel ball is inserted into the groove of the guide rail, the upper movable plate is set in the L-shaped guide rail, and the rotary shaft shell is set on the upper movable plate; the E-shaped frame is fixed on the lower movable plate, and the cam The translation plate is set on the cam, the stepper motor is locked on the cam translation plate, the motor shaft of the stepper motor is aligned with the rotary transmission shaft and inserted into the front cover;

The L-shaped guide rail is locked on the table, the right movable plate is set on the L-shaped guide rail, the third T-shaped seat is locked on the table by screws, the second T-shaped seat is locked on the right movable plate, and the lower bracket is fixed on the right movable plate , the pulley motor shaft is inserted into the motor, the pulley key is set in the pulley motor shaft, the large pulley is set in the pulley motor shaft, the grinding head bracket is fixed on the right movable plate, and the belt is set between the pulley motor shaft and the large pulley superior;

The front cover, side cover, lower cover, right side cover, rear small cover, middle cover and left rear cover are arranged on the grinding head support, and the power switch is arranged on the front cover.

The design features of the utility model are: based on the control of the single-chip microcomputer, the angle between the teeth can be automatically indexed, and the grinding of saw blade milling cutters with different front angles can be realized, and the operation is convenient. Based on the single-chip microcomputer to control the movement of the desktop machine tool, and through the rotation of the grinding wheel, the multi-piece thin saw blade milling cutter is automatically ground and formed at the same time.

Description of drawings

Fig. 1 is a front view assembly diagram of an embodiment of the utility model.

FIG. 2 is a top view assembly diagram of FIG. 1 .

FIG. 3 is a schematic assembly diagram of a cross-sectional view taken along the M direction in FIG. 1 .

Fig. 4 is a right side view assembly diagram of Fig. 1 .

Detailed ways

Referring to Figures 1 to 4, the embodiment of the utility model is provided with a grinding head bracket 1, an upper movable plate 2, a cam translation plate 3, an E-shaped frame 4, a motor shaft 5, a bearing 6, a cam 7, a reduction motor 8, and a shaft coupling 9. Cam key 10, steel ball 11, pull plate 12, upper left guide rail edge 13, upper right guide rail edge 14, lower movable plate 15, upper support of guide column head 16, sliding shaft 17, lower support of guide column head 18, platen 19 , right movable plate 20, L-shaped guide rail 21, grinding head shaft 22, bearing 23, grinding head shaft outer cover 24, iron gasket 25, grinding head shaft outer cover locking ring 26, grinding wheel 27, small pulley 28, grinding head support 29 , grinding head small pulley key 30, grinding head shaft bearing end cover 31, motor 32, large pulley 33, lower bracket 34, pulley key 35, pulley motor shaft 36, the first T-shaped seat 37, the third T-shaped seat 38 , 2nd T-shaped seat 39, adjusting bolt 40, adjusting bolt 41, rotary transmission shaft 42, bearing 43, bearing 44, rotary shaft shell 45, 120 gear cutter 46, stepper motor 47, simple coupling 48, front cover 49. Side cover 50, lower cover 51, right cover 52, rear small cover 53, middle cover 54, left rear cover 55, power switch 56, round head oblique threaded hole handle 57, handle bolt 58, belt 59 and upper support bearing 60.

The grinding head shaft 22 is inserted into the grinding head support 29 along the axis hole of the grinding head support 29. The two ends of the grinding head support 29 are respectively provided with bearings. The bearing end caps of the grinding head shaft 22 are locked on the two ends of the grinding head support 29. The tapered hole of the outer cover 24 is inwardly sleeved on the grinding head shaft 22, and is closely matched with the tapered step of the grinding head shaft 22. In the keyway of the grinding head shaft 22, the keyway of the small pulley 28 is aligned with the small pulley key 30 of the grinding head so that the small pulley 28 and the grinding head shaft 22 form a tight fit; the upper support bearing 60 is sleeved on the sliding shaft 17, and the guide The upper support 16 of the column head penetrates into the sliding shaft 17 and is set on the upper support bearing 60, and the lower support 18 of the guide column head is arranged in the sliding shaft 17;

The two ends of the rotary transmission shaft 42 are respectively provided with bearings, the rotary shaft casing 45 and the 120 gear cutters 46 are sleeved on the rotary transmission shaft 42, and the rotary shaft casing 45 is fixed on the upper movable plate 2 by bolts and pins;

The motor shaft of the deceleration motor 8 is put into the stepped cylinder of the E-shaped frame 4, and the cam key 10 fixes the cam 7 on the motor shaft of the deceleration motor 8, and the motor shaft of the deceleration motor 8 is fixed by a pin and a coupling, and the deceleration motor 8 Be fixed on the lower bottom plate of the E-shaped frame 4;

Platen 19 is located on the grinding head support 1, the first T-shaped seat 37 is locked on the leftmost end of the platen 19 with screws, the lower bearing 18 of the guide column head is locked on the upper and lower edges of the left end of the platen 19, and the lower movable plate 15 is located on the guide rail. The column head lower support 18 is placed in the center of the two sliding shaft assemblies, the guide column head upper support 16 on the sliding shaft assembly is locked on the lower movable plate 15, the pull plate 12 is located at the tail of the adjustment bolt 41, and the pull plate 12 Tightly fit on the lower movable plate 15, the upper right guide rail edge 14 and the upper left guide rail edge 13 are fixed on the lower movable plate 15 through threaded connection, the steel ball 11 snaps into the guide rail groove, the upper movable plate 2 is arranged in the L-shaped guide rail 21, and the rotary shaft The shell 45 is located on the upper movable plate 2; the E-shaped frame 4 is fixed on the lower movable plate 15, the cam translation plate 3 is located on the cam 7, the stepping motor 48 is locked on the cam translation plate 3, and the stepping motor 48 The motor shaft is aligned with the rotary drive shaft 42 and inserted into the front cover 49;

The L-shaped guide rail 21 is locked on the platen 19, the right movable plate 20 is located on the L-shaped guide rail 21, the 3rd T-shaped seat 38 is locked on the platen 19 by screws, and the second T-shaped seat 39 is locked on the right movable plate 20, Lower support 34 is fixed on the right movable plate 20, and pulley motor shaft 36 is inserted in the motor 32, and pulley key 35 is located in the pulley motor shaft 36, and large belt pulley 33 is located in the pulley motor shaft 36, and grinding head support 29 Fixed on the right movable plate 20, the belt 59 is located on the pulley motor shaft 36 and the large pulley 33;

Front cover plate 49, side cover plate 50, lower cover plate 51, right side cover plate 52, rear small cover plate 53, middle cover plate 54, left rear cover plate 55 are arranged on the grinding head support 1, and power switch 56 is located at On the front cover plate 49.

Before the machine tool is started, first adjust the adjusting bolt 41, pull out the lower movable plate 15, leave the workpiece clamping position, place the workpiece on the top of the rotary indexing shaft assembly, and clamp the workpiece, adjust according to the required tooth depth Adjust the bolt 41, if the tooth depth is shallow, the initial distance between the lower movable plate 15 and the right movable plate 20 is adjusted closer, otherwise, the distance is adjusted farther. The number of rotations required for adjusting the bolt 41 can also be calculated according to the depth of the teeth.

After adjusting the adjustment bolt 41, adjust the adjustment bolt 40 again to stagger a distance between the grinding wheel 27 and the diameter of the workpiece along the centerline direction of the upper movable plate 2, so that the angle between the cutting surface of the grinding wheel and the tooth surface of the workpiece will change by an angle, then The front and rear angles of the workpiece to be ground will change, and the number of rotations of 40 circles can be calculated according to the difference of the front and rear angles of the workpiece.

Then input the desired number of teeth through the numerical control keyboard, turn on the power switch 56, then the reduction motor 8 is turned on, and the motor shaft 5 is driven to rotate through the shaft coupling 9 to drive the cam 7 to rotate, and the cam 7 drags the cam translation plate 3 to move back and forth. The translation plate 3 and the upper movable plate 2 move synchronously, and the upper movable plate 2 has a left upper guide rail edge 13 and a right upper guide rail edge 14 to limit its left and right movement, so the cam translation plate 3 can only move forward and backward. At this time, the cam translation plate 3 Drive the stepper motor 47 to move back and forth and the stepper motor is connected with the rotary drive shaft 42 through a simple coupling 48, so that the whole rotary indexing shaft assembly is pulled and the movable plate 2 is reciprocated.

While pressing the power supply, the stepper motor 47 is opened, and it is driven to do intermittent rotation by the single-chip microcomputer system, and the stepper motor 47 controls the workpiece to rotate one tooth. When the workpiece leaves the grinding wheel, the stepper motor receives a high-level signal and starts to rotate. During the time between the workpiece leaving the grinding wheel and contacting the grinding wheel again, the workpiece completes the rotation of one tooth and enters the cutting of the next tooth. The angle of rotation of one tooth can be adjusted according to the workpiece. The number of teeth is calculated and controlled by a numerical control system.

When the feeding action is completed, the motor 32 also rotates and drives the large pulley 33 to rotate to drive the transmission of the belt 59 to rotate the small pulley 28, the small pulley 28 drives the rotation of the grinding head shaft 22, and the grinding head shaft 22 drives the grinding wheel 27 to rotate to grind the workpiece.

Claims (1)

1. Automatic sharpening machine for saw blade and milling cutter, which is characterized in that it is equipped with a grinding head bracket, an upper movable plate, a cam translation plate, an E-shaped frame, a cam, a gear motor, a cam key, a steel ball, a pull plate, and the upper left rail edge , upper right guide rail edge, lower movable plate, upper support of guide column head, sliding shaft, lower support of guide column head, platen, right movable plate, L-shaped guide rail, grinding head shaft, grinding head shaft outer casing, grinding wheel, small pulley, grinding wheel Head bracket, grinding head small pulley key, motor, large pulley, lower bracket, pulley key, pulley motor shaft, 1st T-shaped seat, 3rd T-shaped seat, 2nd T-shaped seat, adjusting bolt, rotary drive shaft, rotary Rotary shaft housing, gear cutter, stepping motor, front cover, side cover, lower cover, right cover, rear small cover, middle cover, left rear cover, power switch, round head oblique threaded hole Handle, belt and upper support bearings; The grinding head shaft is inserted into the grinding head support along the axis hole of the grinding head support. The two ends of the grinding head support are respectively equipped with bearings. The bearing end caps of the grinding head shaft are locked at both ends of the grinding head support. The inner sleeve is on the grinding head shaft, and it is closely matched with the tapered step of the grinding head shaft. The grinding wheel is placed on the step of the outer casing of the grinding head shaft. Align the key of the small pulley of the grinding head so that the small pulley and the shaft of the grinding head form a tight fit; The lower support of the column head is set in the sliding shaft; The two ends of the rotary transmission shaft are respectively provided with bearings, the rotary shaft casing and the gear cutter are set on the rotary transmission shaft, and the rotary shaft casing is fixed on the upper movable plate by bolts and pins; The motor shaft of the geared motor is put into the stepped cylinder of the E-shaped frame. The cam key fixes the cam on the motor shaft of the geared motor. The motor shaft of the geared motor is fixed by a pin and a coupling, and the geared motor is fixed under the E-shaped frame. bottom plate; The platen is set on the grinding head support, the first T-shaped seat is locked on the leftmost end of the platen with screws, the lower support of the guide column head is locked on the upper and lower edges of the left end of the platen, and the lower movable plate is set on the lower support of the guide column head and placed In the center of the two sliding shaft assemblies, lock the upper support of the guide column head on the sliding shaft assembly to the lower movable plate, set the pull plate at the tail of the adjusting bolt, and tightly fit the pull plate on the lower movable plate, the upper right guide rail edge and the upper left The edge of the guide rail is fixed on the lower movable plate through screw connection, the steel ball is inserted into the groove of the guide rail, the upper movable plate is set in the L-shaped guide rail, and the rotary shaft shell is set on the upper movable plate; the E-shaped frame is fixed on the lower movable plate, and the cam The translation plate is set on the cam, the stepper motor is locked on the cam translation plate, the motor shaft of the stepper motor is aligned with the rotary transmission shaft and inserted into the front cover; The L-shaped guide rail is locked on the table, the right movable plate is set on the L-shaped guide rail, the third T-shaped seat is locked on the table by screws, the second T-shaped seat is locked on the right movable plate, and the lower bracket is fixed on the right movable plate , the pulley motor shaft is inserted into the motor, the pulley key is set in the pulley motor shaft, the large pulley is set in the pulley motor shaft, the grinding head bracket is fixed on the right movable plate, and the belt is set between the pulley motor shaft and the large pulley superior; The front cover, side cover, lower cover, right side cover, rear small cover, middle cover and left rear cover are arranged on the grinding head support, and the power switch is arranged on the front cover.

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