阅读说明：本技术 一种切削加工刀具 (Cutting machining tool ) 是由 张志国 刘山 于 2021-08-31 设计创作，主要内容包括：本发明涉及切削刀具技术领域,具体的说是一种切削加工刀具,包括底座和刀架,所述刀架上安装设有换刀机构、打磨机构、清理机构。所述换刀机构包括电动伸缩杆、连杆、转盘。所述打磨机构包括第一支座、第二支座、砂轮、气筒。所述清理机构包括转轴、第一腔室、第二腔室、滤板。通过设置换刀机构,有利于自动快速的对刀头进行更换,保证对工件的切削工作可以持续进行,提高了对工件的加工效率。通过设置打磨机构,有利于自动对变钝的刀头进行打磨,刀头被打磨之后可以作为备用刀头,以便于下一次换刀机构进行换刀。通过设置收集管和抽气扇,有利于对加工产生的碎屑进行收集,防止碎屑飞散至机床内部的角落,保证了机床内部环境的清洁。(The invention relates to the technical field of cutting tools, in particular to a cutting tool, which comprises a base and a tool rest, wherein the tool rest is provided with a tool changing mechanism, a polishing mechanism and a cleaning mechanism. The tool changing mechanism comprises an electric telescopic rod, a connecting rod and a rotary table. The grinding mechanism comprises a first support, a second support, a grinding wheel and an air cylinder. The cleaning mechanism comprises a rotating shaft, a first chamber, a second chamber and a filter plate. Through setting up tool changing mechanism, be favorable to automatic quick changing the tool bit, guarantee to carry out continuously to the cutting work of work piece, improved the machining efficiency to the work piece. Through setting up grinding machanism, be favorable to the automation to polishing to the tool bit that blunts, the tool bit can regard as reserve tool bit after being polished to tool changing mechanism carries out the tool changing next time. Through setting up the collecting pipe and bleeding the fan, be favorable to collecting the piece that the processing produced, prevent that the piece from scattering to the inside corner of lathe, guaranteed the cleanness of lathe internal environment.)

1. A cutting tool, characterized by: comprises a base (1) and a tool rest (2), wherein the tool changing mechanism (5), a polishing mechanism (6) and a cleaning mechanism (18) are arranged on the tool rest (2), one end of the top of the base (1) is rotatably connected with the tool rest (2), one end of the top of the tool rest (2) is fixedly connected with a first tool bit (3), the other end of the top of the tool rest (2) is fixedly connected with a second tool bit (4), the first tool bit (3) is far away from the base (1), the second tool bit (4) is positioned above the top end of the base (1), the tool changing mechanism (5) is arranged at the top end of the base (1) on two sides close to the tool rest (2), the polishing mechanism (6) is arranged at the top end of the base (1) close to the second tool bit (4), a motor (7) is fixedly connected with the inside of the base (1) under the polishing mechanism (6), and the motor (7) is in transmission connection with the polishing mechanism (6), a cleaning mechanism (18) is arranged in the base (1) and is close to the lower part of the tool rest (2);

the tool changing mechanism (5) comprises an electric telescopic rod (51), a connecting rod (53) and a rotary table (54), the rotary table (54) is fixedly connected to the center of the top end of the tool rest (2), the electric telescopic rod (51) and an air cylinder (56) are fixedly connected to the two sides of the top end of the base (1) far away from the tool rest (2) respectively, the output end of the electric telescopic rod (51) is opposite to the tool rest (2) and is fixedly connected with a moving block (52), the output end of the air cylinder (56) is opposite to the tool rest (2) and is fixedly connected with a locking block (55), one end of the connecting rod (53) is hinged to the edge of the top end of the rotary table (54), and the other end of the connecting rod (53) is hinged to the moving block (52);

the grinding mechanism (6) comprises a first support (61), a second support (62), a grinding wheel (66) and an air cylinder (68), the top end of the base (1) is fixedly connected with the first support (61) and the second support (62) at two sides close to the second tool bit (4) respectively, the first support (61) and the second support (62) are connected with lifting columns (63) in a sliding mode, the tops of the two lifting columns (63) extend out of the first support (61) and the second support (62) respectively, a first shaft (65) is rotatably connected between the tops of the two lifting columns (63), the grinding wheel (66) is fixedly connected to the first shaft (65) above the second tool bit (4), a first gear (67) is fixedly connected to the first shaft (65) at a position close to the second support (62), the top end of the base (1) is fixedly connected with the air cylinder (68) at a position close to the air cylinder (56), a piston rod (69) is connected in the air cylinder (68) in a sliding mode, one end, located outside the air cylinder (68), of the piston rod (69) is fixedly connected with the locking block (55), a first guide pipe (681) is connected between the air cylinder (68) and the first support (61) in a penetrating mode, and a second guide pipe (682) is connected between the air cylinder (68) and the second support (62) in a penetrating mode.

2. A cutting tool according to claim 1, wherein: one side of the second support (62) close to the first gear (67) is rotatably connected with a third gear (10), the third gear (10) is in transmission connection with the first gear (67), a motor (7) is fixedly connected to the inner portion of the base (1) at the position close to the lower portion of the first support (61), a second shaft (8) is horizontally and rotatably connected to the inner portion of the base (1) at the position close to the motor (7), the output end of the motor (7) is fixedly connected with one end of the second shaft (8), a second gear (9) is fixedly connected to the second shaft (8) at the position close to the lower portion of the third gear (10), the second gear (9) is meshed with the third gear (10), a first bevel gear (11) is fixedly connected to the second shaft (8) at the position close to the lower portion of the grinding wheel (66), a third shaft (13) is rotatably connected to the inner portion of the base (1) along the width direction of the base (1), one end fixedly connected with second bevel gear (12) that third axle (13) is close to first bevel gear (11), second bevel gear (12) and first bevel gear (11) mesh mutually, the one end fixedly connected with air extraction fan (14) of first bevel gear (11) are kept away from in third axle (13), one side of base (1) is in the below fixedly connected with of being close to first tool bit (3) and collects mouth (15), it is provided with collecting pipe (16) to link up between collecting mouth (15) and air extraction fan (14), the inside of base (1) is provided with collection chamber (17) in the below of being close to collecting pipe (16).

3. A cutting tool according to claim 2, wherein: the cleaning mechanism (18) comprises a rotating shaft (181), a first cavity (184), a second cavity (185) and a filter plate (189), the rotating shaft (181) is fixedly connected to the center of the bottom end of the tool rest (2), a bump (182) is fixedly connected to the rotating shaft (181), the first cavity (184) is arranged in the position, close to the rotating shaft (181), of the inner portion of the base (1), a push rod (183) is connected between the first cavity (184) and the rotating shaft (181) in a sliding mode, one end, far away from the rotating shaft (181), of the push rod (183) is inserted in the first cavity (184), the filter plate (189) is fixedly connected in the position, close to the air suction fan (14), of the inner portion of the base (1), the second cavity (185) is arranged above the position, close to the filter plate (189), the second cavity (185) is communicated with the first cavity (184), and a push rod (186) is connected in the second cavity (185) in a sliding mode, the bottom end of the push rod (186) extends out of the second cavity (185) and is fixedly connected with a cleaning block (187), one side of the cleaning block (187) is abutted to the filter plate (189), the push rod (186) is sleeved with a second spring (188), one end of the second spring (188) is fixedly connected with the cleaning block (187), and the other end of the second spring (188) is fixedly connected with the top wall of the collecting pipe (16).

4. A cutting tool according to claim 3, wherein: the inside of first support (61) and second support (62) all sets up to the cavity, the equal fixedly connected with first spring (64) in inside bottom of first support (61) and second support (62), and the top of first spring (64) and the bottom fixed connection of lift post (63).

5. A cutting machining tool according to claim 4, characterized in that: a movable door (19) is arranged on one side of the base (1) close to the collecting chamber (17), the collecting chamber (17) is communicated with the collecting pipe (16), and the communicating part is close to the filter plate (189).

6. A cutting machining tool according to claim 5, characterized in that: one side of the locking block (55) close to the rotary disc (54) is provided with a plurality of teeth (20), and both sides of the outer wall of the rotary disc (54) are provided with tooth grooves (21) matched with the teeth (20).

Technical Field

The invention relates to the technical field of cutting tools, in particular to a cutting machining tool.

Background

Cutting tools are tools used for cutting in machining, and are classified into various types, such as turning tools, boring tools, milling tools, and drill bits, and are generally mounted on a machine tool for machining a workpiece.

Generally, a cutting tool is fixed at a position where the cutting tool is installed, and after the cutting tool continues to machine a workpiece for a period of time, a tool bit is easily dull, for example, a turning tool for turning, at this time, a worker needs to detach the tool bit from the cutting tool, install a new tool bit and then machine the new tool bit, and it takes a lot of time to detach and install the tool bit, and the cutting tool cannot cut the workpiece when the tool bit is replaced, thereby reducing the machining efficiency of the workpiece. And the staff need shift it to equipment of polishing and polish it after the tool bit becomes blunt, and the tool bit of polishing also needs manual installation and dismantlement, and manual operation has the potential safety hazard and consumes time.

Disclosure of Invention

The invention provides a cutting machining tool aiming at the problems in the prior art. The technical problems that the tool bit of the existing cutting tool is easily blunted after a workpiece is continuously machined for a period of time, the tool bit needs to be replaced and the tool bit needs to be polished can be solved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cutting process cutter, includes base and knife rest, the installation is equipped with tool changing mechanism, grinding machanism, clearance mechanism on the knife rest, the top one end of base is rotated and is connected with the knife rest, the first tool bit of top one end fixedly connected with of knife rest, the top other end fixedly connected with second tool bit of knife rest, the base is kept away from to first tool bit, the second tool bit is located the top of base, tool changing mechanism is installed in the both sides that are close to the knife rest on the top of base, grinding machanism is installed in the top of base being close to second tool bit department, the inside of base is being close to grinding machanism's below fixedly connected with motor, and the motor is connected with the grinding machanism transmission, clearance mechanism is installed in the below that is close to the knife rest in the inside of base.

The tool changing mechanism comprises an electric telescopic rod, a connecting rod and a rotary table, the rotary table is fixedly connected with the center of the top end of a tool rest, the electric telescopic rod and an air cylinder are fixedly connected with the top end of a base respectively at two sides of the tool rest, the output end of the electric telescopic rod is opposite to the tool rest and fixedly connected with a movable block, the output end of the air cylinder is opposite to the tool rest and fixedly connected with a locking block, the top edge of the rotary table is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the movable block.

The polishing mechanism comprises a first support, a second support, a grinding wheel and an air cylinder, the top end of the base is fixedly connected with the first support and the second support at the two sides close to the second tool bit respectively, the insides of the first support and the second support are connected with lifting columns in a sliding way, the tops of the two lifting columns respectively extend out of the first support and the second support, a first shaft is rotatably connected between the tops of the two lifting columns, a grinding wheel is fixedly connected above the second tool bit on the first shaft, a first gear is fixedly connected to the first shaft at a position close to the second support, an air cylinder is fixedly connected to the top end of the base at a position close to the air cylinder, a piston rod is connected in the air cylinder in a sliding manner, and one end of the piston rod, which is positioned outside the air cylinder, is fixedly connected with the locking block, a first guide pipe is connected between the air cylinder and the first support in a penetrating way, and a second guide pipe is connected between the air cylinder and the second support in a penetrating way.

Specifically, a third gear is rotatably connected to one side of the second support close to the first gear and is in transmission connection with the first gear, a motor is fixedly connected to the lower portion of the base close to the first support, a second shaft is horizontally and rotatably connected to the inner portion of the base close to the motor, the output end of the motor is fixedly connected to one end of the second shaft, a second gear is fixedly connected to the lower portion of the second shaft close to the third gear and is meshed with the third gear, a first bevel gear is fixedly connected to the lower portion of the second shaft close to the grinding wheel, a third shaft is rotatably connected to the inner portion of the base along the width direction of the base, a second bevel gear is fixedly connected to one end of the third shaft close to the first bevel gear and is meshed with the first bevel gear, an air suction fan is fixedly connected to one end of the third shaft far away from the first bevel gear, and a collection port is fixedly connected to one side of the base close to the lower portion of the first cutter head, the collecting pipe is arranged between the collecting port and the air exhaust fan in a penetrating way, and the collecting chamber is arranged in the base below the collecting pipe.

Specifically, the cleaning mechanism comprises a rotating shaft, a first chamber, a second chamber and a filter plate, the center of the bottom end of the tool rest is fixedly connected with the rotating shaft, the rotating shaft is fixedly connected with a lug, the first chamber is arranged in the base close to the rotating shaft, a mandril is connected between the first chamber and the rotating shaft in a sliding way, one end of the mandril far away from the rotating shaft is inserted in the first chamber, the filter plate is fixedly connected in the collecting pipe close to the exhaust fan, the second chamber is arranged in the base close to the upper part of the filter plate, and the second chamber is communicated with the first chamber, a push rod is connected in the second chamber in a sliding manner, the bottom end of the push rod extends out of the second chamber and is fixedly connected with a cleaning block, one side of the cleaning block is abutted against the filter plate, a second spring is sleeved on the push rod, one end of the second spring is fixedly connected with the cleaning block, and the other end of the second spring is fixedly connected with the top wall of the collecting pipe.

Specifically, the inside of first support and second support all sets up to the cavity, the first spring of the equal fixedly connected with in inside bottom of first support and second support, and the top of first spring and the bottom fixed connection of lift post.

Specifically, a movable door is arranged on one side of the base close to the collecting chamber, the collecting chamber is communicated with the collecting pipe, and the communicating part is close to the filter plate.

Specifically, one side of the locking block, which is close to the rotary table, is provided with a plurality of teeth, and tooth grooves are formed in two sides of the outer wall of the rotary table.

The invention has the beneficial effects that:

by arranging the tool changing mechanism, the tool bit can be automatically and quickly replaced, the cutting work of the workpiece can be continuously carried out, and the processing efficiency of the workpiece is improved. When the first tool bit becomes blunt, the tool changing mechanism automatically operates and the positions of the first tool bit and the second tool bit are exchanged, the second tool bit continues to cut the workpiece, and the grinding mechanism grinds the workpiece after the first tool bit moves to the position of the original second tool bit.

And 2, the grinding mechanism is arranged, so that the dull cutter head can be ground automatically, and the cutter head can be used as a spare cutter head after being ground, so that the cutter can be changed by the cutter changing mechanism next time. The tool changing mechanism and the grinding mechanism are mutually matched to enable the first tool bit and the second tool bit to cut the workpiece alternately, so that the machining efficiency of the workpiece is improved, the tool bit is not required to be frequently installed and detached by workers, and the labor intensity of the workers is reduced. When the tool changing mechanism operates, the tool changing mechanism lifts up the grinding wheel through a series of structures such as an air cylinder and the like, so that the grinding wheel is prevented from colliding with the tool bit in the tool changing process, and the tool bit is protected.

And 3, the collection pipe and the exhaust fan are arranged, so that the collection of the chips generated by processing is facilitated, the chips are prevented from scattering to corners inside the machine tool, and the cleanness of the internal environment of the machine tool is ensured. Through setting up clearance mechanism, be favorable to clearing up the piece on the filter plate to guarantee the air that passes through that the filter plate can be smooth, and when the push rod drove clearance piece and descend, the clearance piece pushes away the filter plate and the piece in the collecting vessel to the inside of collecting the room, prevents that the piece from piling up in the intercommunication department of collecting vessel and collecting the room, so that follow-up staff clears away the piece from the inside of base through collecting the room.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of a cutting tool according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is a schematic view of the tool changing mechanism of the present invention;

fig. 6 is an enlarged schematic view of the portion C shown in fig. 4.

In the figure: 1. a base; 2. a tool holder; 3. a first cutter head; 4. a second cutter head; 5. a tool changing mechanism; 51. an electric telescopic rod; 52. a moving block; 53. a connecting rod; 54. a turntable; 55. a locking block; 56. a cylinder; 6. a polishing mechanism; 61. a first support; 62. a second support; 63. a lifting column; 64. a first spring; 65. a first shaft; 66. a grinding wheel; 67. a first gear; 68. an air cylinder; 681. a first conduit; 682. a second conduit; 69. a piston rod; 7. a motor; 8. a second shaft; 9. a second gear; 10. a third gear; 11. a first bevel gear; 12. a second bevel gear; 13. a third axis; 14. an air extracting fan; 15. a collection port; 16. a collection pipe; 17. a collection chamber; 18. a cleaning mechanism; 181. a rotating shaft; 182. a bump; 183. a top rod; 184. a first chamber; 185. a second chamber; 186. a push rod; 187. cleaning the block; 188. a second spring; 189. filtering the plate; 19. a movable door; 20. teeth; 21. a tooth socket.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a cutting tool according to the present invention includes a base 1 and a tool holder 2, the tool changing mechanism 5, the polishing mechanism 6 and the cleaning mechanism 18 are arranged on the tool rest, one end of the top of the base 1 is rotatably connected with the tool rest 2, one end of the top of the tool rest 2 is fixedly connected with the first tool bit 3, the other end of the top of the tool rest 2 is fixedly connected with the second tool bit 4, the first tool bit 3 is far away from the base 1, the second tool bit 4 is positioned above the top end of the base 1, the tool changing mechanism 5 is arranged at the two sides of the top end of the base 1 close to the tool rest 2, the polishing mechanism 6 is arranged at the position of the top end of the base 1 close to the second tool bit 4, the motor 7 is fixedly connected in the inner part of the base 1 below the polishing mechanism 6, and the motor 7 is connected with the grinding mechanism 6 in a transmission way, and a cleaning mechanism 18 is arranged in the base 1 and is close to the lower part of the tool rest 2.

Tool changing mechanism 5 includes electric telescopic handle 51, connecting rod 53, carousel 54, the top center fixedly connected with carousel 54 of knife rest 2, fixedly connected with electric telescopic handle 51 and cylinder 56 are do not distinguished in the top of base 1 keeping away from the both sides of knife rest 2 punishment, electric telescopic handle 51's output and knife rest 2 are relative and fixedly connected with movable block 52, the output of cylinder 56 is relative and fixedly connected with locking block 55 with knife rest 2, the top edge of carousel 54 articulates there is the one end of connecting rod 53, the other end of connecting rod 53 is articulated with movable block 52. The output end of the air cylinder 56 is started to be shortened firstly, the air cylinder 56 drives the locking block 55 to be away from the tool rest 2, and the locking block 55 is separated from the rotary disc 54 to unlock the tool rest 2. Then, the electric telescopic rod 51 is started to enable the output end of the electric telescopic rod to extend, the electric telescopic rod 51 drives the moving block 52 to be close to the tool rest 2, the moving block 52 drives the rotary table 54 to rotate through the connecting rod 53 in the moving process, the rotary table 54 drives the tool rest 2 to rotate, when the output end of the electric telescopic rod 51 extends to the longest length, the tool rest 2 rotates by one hundred eighty degrees, the positions of the first tool bit 3 and the second tool bit 4 are exchanged, the workpiece is cut by the sharp second tool bit 4 at the moment, the first tool bit 3 is located below the grinding wheel 66, and the grinding mechanism 6 grinds the first tool bit 3.

The grinding mechanism 6 comprises a first support 61, a second support 62, a grinding wheel 66 and an air cylinder 68, wherein the top end of the base 1 is fixedly connected with the first support 61 and the second support 62 at two sides close to the second tool bit 4 respectively, the first support 61 and the second support 62 are connected with a lifting column 63 in a sliding manner, the top parts of the two lifting columns 63 extend out of the first support 61 and the second support 62 respectively, a first shaft 65 is rotatably connected between the top parts of the two lifting columns 63, the grinding wheel 66 is fixedly connected on the first shaft 65 above the second tool bit 4, a first gear 67 is fixedly connected on the first shaft 65 close to the second support 62, the top end of the base 1 is fixedly connected with the air cylinder 56, the air cylinder 68 is connected with a piston rod 69 in a sliding manner, one end of the piston rod 69, which is positioned at the outer part of the air cylinder 68, is fixedly connected with the locking block 55, a first guide pipe 681 is connected between the air cylinder 68 and the first support 61, a second conduit 682 extends through the cylinder 68 and the second holder 62. When the output of the cylinder 56 is shortened, the locking block 55 drives the piston rod 69 to push the air inside the cylinder 68, and the air inside the cylinder 68 enters the first seat 61 through the first guide tube 681 and the second seat 62 through the second guide tube 682. After the air enters the first support 61 and the second support 62, the air pushes the lifting column 63 to ascend, the lifting column 63 drives the first shaft 65 to ascend, the first shaft 65 drives the grinding wheel 66 to be far away from the tool rest 2, and the tool bit and the grinding wheel 66 are prevented from colliding during tool changing.

Specifically, a third gear 10 is rotatably connected to one side of the second support 62 close to the first gear 67, the third gear 10 is in transmission connection with the first gear 67, a motor 7 is fixedly connected to the lower portion of the base 1 close to the first support 61, a second shaft 8 is horizontally and rotatably connected to the inner portion of the base 1 close to the motor 7, the output end of the motor 7 is fixedly connected to one end of the second shaft 8, a second gear 9 is fixedly connected to the lower portion of the second shaft 8 close to the third gear 10, the second gear 9 is meshed with the third gear 10, a first bevel gear 11 is fixedly connected to the lower portion of the second shaft 8 close to a grinding wheel 66, a third shaft 13 is rotatably connected to the inner portion of the base 1 along the width direction of the base 1, a second bevel gear 12 is fixedly connected to one end of the third shaft 13 close to the first bevel gear 11, the second bevel gear 12 is meshed with the first bevel gear 11, an air exhaust fan 14 is fixedly connected to one end, far away from the first bevel gear 11, of the third shaft 13, a collecting port 15 is fixedly connected to one side of the base 1 below the first cutter head 3, a collecting pipe 16 is arranged between the collecting port 15 and the air exhaust fan 14 in a penetrating mode, and a collecting chamber 17 is arranged inside the base 1 below the collecting pipe 16. The output of motor 7 drives second shaft 8 and rotates, and second shaft 8 drives second gear 9 and rotates, and second gear 9 drives first gear 67 through third gear 10 and rotates, and first gear 67 drives emery wheel 66 through primary shaft 65 and rotates, polishes the cutter head when emery wheel 66 rotates. When the output of motor 7 rotated, motor 7 drove first bevel gear 11 through second shaft 8 and rotated, and first bevel gear 11 drove third axle 13 through second bevel gear 12 and rotates, and third axle 13 drove the fan of bleeding 14 and rotates, produced negative pressure when the fan of bleeding 14 rotated, and the piece that the cutting produced gets into collecting pipe 16 through collecting mouth 15.

Specifically, the cleaning mechanism 18 includes a rotating shaft 181, a first chamber 184, a second chamber 185, and a filter plate 189, the rotating shaft 181 is fixedly connected to the center of the bottom end of the tool holder 2, a protrusion 182 is fixedly connected to the rotating shaft 181, the first chamber 184 is disposed in the base 1 near the rotating shaft 181, a push rod 183 is slidably connected between the first chamber 184 and the rotating shaft 181, one end of the push rod 183 away from the rotating shaft 181 is inserted into the first chamber 184, the filter plate 189 is fixedly connected to the inner portion of the collecting pipe 16 near the suction fan 14, the second chamber 185 is disposed in the base 1 near the upper portion of the filter plate 189, the second chamber 185 is communicated with the first chamber 184, a push rod 186 is slidably connected to the second chamber 185, the bottom end of the push rod 186 extends out of the second chamber 185 and is fixedly connected with a cleaning block 187, one side of the cleaning block 187 abuts against the filter plate 189, a second spring 188 is sleeved on the push rod 186, one end of the second spring 188 is fixedly connected to the cleaning block 187, and the other end of the second spring 188 is fixedly connected to the top wall of the collection tube 16. The tool rest 2 rotates to drive the rotating shaft 181, the rotating shaft 181 rotates to drive the lug 182 to rotate, the lug 182 rotates to push the ejector rod 183, the ejector rod 183 moves towards the direction far away from the rotating shaft 181, the ejector rod 183 pushes the air in the first cavity 184, the air in the first cavity 184 enters the second cavity 185, the air pressure in the second cavity 185 increases to enable the push rod 186 to descend, and the push rod 186 descends to scrape and clean the chips on the filter plate 189 through the cleaning block 187. After the lug 182 rotates, the lug 183 is separated from the push rod 183, the second spring 188 pulls the cleaning block 187 and the push rod 186 to ascend and reset, the push rod 186 pushes air in the second chamber 185 into the first chamber 184, and the push rod 183 is pushed by the air to move towards the direction close to the lug 182, so that when the rotating shaft 181 rotates next time, the lug 182 can push the push rod 183 again.

Specifically, the inside of first support 61 and second support 62 all sets up to the cavity, and the first spring 64 of the equal fixedly connected with in inside bottom of first support 61 and second support 62, and the top of first spring 64 and the bottom fixed connection of lift post 63. Through setting up first spring 64 to after the tool changing, the decline that lift post 63 can be quick resets, and first gear 67 and third gear 10 mesh mutually, and emery wheel 66 rotates and polishes the tool bit.

Specifically, a movable door 19 is installed on one side of the base 1 near a collection chamber 17, the collection chamber 17 is communicated with a collection pipe 16, and the communication position is near a filter plate 189. When the push rod 186 lowers the purge block 187, the purge block 187 pushes the filter plate 189 and debris within the collection tube 16 into the interior of the collection chamber 17. The personnel can clean up the debris inside the collection chamber 17 by opening the flap 19.

Specifically, one side of the locking block 55 close to the rotary disc 54 is provided with a plurality of teeth 20, and both sides of the outer wall of the rotary disc 54 are provided with tooth grooves 21. After the tool changing is finished, the output end of the air cylinder 56 extends, the air cylinder 56 drives the locking block 55 to be close to the rotary disc 54, finally, the teeth 20 on the locking block 55 are inserted into the tooth grooves 21 on the rotary disc 54, and the locking block 55 fixes the rotary disc 54 to prevent the tool rest 2 from rotating.

The working principle is as follows: when the cutting tool is used, the base 1 is fixed on a tool mounting position, the first tool bit 3 is aligned to a workpiece, and then the base 1 is moved to enable the first tool bit 3 to be close to the workpiece, so that the workpiece is cut. After a certain period of cutting, the first tool tip 3 becomes dull, and the tool changing mechanism 5 is used to change tools.

Working process of the tool changing mechanism 5: the air cylinder 56 is started to shorten the output end, the air cylinder 56 drives the locking block 55 to be away from the tool rest 2, and the locking block 55 is separated from the rotary disc 54 to unlock the tool rest 2. Then, the electric telescopic rod 51 is started to enable the output end of the electric telescopic rod to extend, the electric telescopic rod 51 drives the moving block 52 to be close to the tool rest 2, the moving block 52 drives the rotary table 54 to rotate through the connecting rod 53 in the moving process, the rotary table 54 drives the tool rest 2 to rotate, when the output end of the electric telescopic rod 51 extends to the longest length, the tool rest 2 rotates by one hundred eighty degrees, the positions of the first tool bit 3 and the second tool bit 4 are exchanged, the workpiece is cut by the sharp second tool bit 4 at the moment, the first tool bit 3 is located below the grinding wheel 66, and the grinding mechanism 6 grinds the first tool bit 3. After the tool changing is finished, the output end of the air cylinder 56 extends, the air cylinder 56 drives the locking block 55 to be close to the rotary disc 54, finally, the teeth 20 on the locking block 55 are inserted into the tooth grooves 21 on the rotary disc 54, and the locking block 55 fixes the rotary disc 54 to prevent the tool rest 2 from rotating. The tool changing mechanism 5 is beneficial to automatically changing the tool bit, and the working efficiency is improved.

The working process of the grinding mechanism 6 is as follows: the output of motor 7 drives second shaft 8 and rotates, and second shaft 8 drives second gear 9 and rotates, and second gear 9 drives first gear 67 through third gear 10 and rotates, and first gear 67 drives emery wheel 66 through primary shaft 65 and rotates, polishes the cutter head when emery wheel 66 rotates. When the output of the cylinder 56 is shortened, the locking block 55 drives the piston rod 69 to push the air inside the cylinder 68, and the air inside the cylinder 68 enters the first seat 61 through the first guide tube 681 and the second seat 62 through the second guide tube 682. After the air enters the first support 61 and the second support 62, the air pushes the lifting column 63 to ascend, the lifting column 63 drives the first shaft 65 to ascend, the first shaft 65 drives the grinding wheel 66 to be far away from the tool rest 2, and the tool bit and the grinding wheel 66 are prevented from colliding during tool changing. When the output end of the air cylinder 56 extends, the locking block 55 drives the piston rod 69 to pump the air cylinder 68, air in the first support 61 and the second support 62 enters the air cylinder 68, the lifting column 63 descends and resets, the first gear 67 is meshed with the third gear 10, and the grinding wheel 66 rotates to grind the cutter head.

When the output of motor 7 rotated, motor 7 drove first bevel gear 11 through secondary shaft 8 and rotated, and first bevel gear 11 drove third axle 13 through second bevel gear 12 and rotates, and third axle 13 drove and aspirates fan 14 and rotates, and 14 rotations of aspirating produce the negative pressure, and the piece that the cutting produced gets into collecting pipe 16 through collecting mouth 15, and filter plate 189 blocks the piece, prevents that it from adhering to on aspirating fan 14. After a period of time, a large amount of debris adheres to the filter plates 189, the air blocking effect of the filter plates 189 is increased, the cleaning mechanism 18 is driven to work when the tool changing mechanism 5 operates, and the debris on the filter plates 189 is cleaned by the cleaning mechanism 18.

Working process of the cleaning mechanism 18: the tool rest 2 rotates to drive the rotating shaft 181, the rotating shaft 181 rotates to drive the lug 182 to rotate, the lug 182 rotates to push the ejector rod 183, the ejector rod 183 moves towards the direction far away from the rotating shaft 181, the ejector rod 183 pushes the air in the first cavity 184, the air in the first cavity 184 enters the second cavity 185, the air pressure in the second cavity 185 increases to enable the push rod 186 to descend, and the push rod 186 descends to scrape and clean the chips on the filter plate 189 through the cleaning block 187. After the lug 182 rotates, the lug 183 is separated from the push rod 183, the second spring 188 pulls the cleaning block 187 and the push rod 186 to ascend and reset, the push rod 186 pushes air in the second chamber 185 into the first chamber 184, and the push rod 183 is pushed by the air to move towards the direction close to the lug 182, so that when the rotating shaft 181 rotates next time, the lug 182 can push the push rod 183 again. In summary, when the tool changing mechanism 5 changes tools once, the cleaning mechanism 18 cleans the debris on the filter plates 189 once to ensure that the filter plates 189 can smoothly pass through the air, and when the push rod 186 drives the cleaning block 187 to descend, the cleaning block 187 pushes the debris in the filter plates 189 and the collection pipe 16 to the inside of the collection chamber 17.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.