A double-headed prototyping machine for drilling, milling and grinding

Abstract

The invention discloses a multi-purpose double-head sample making machine for drilling, milling and grinding, comprising a frame, a base is arranged at the bottom of the frame, a transverse support mechanism and a vertical support mechanism are arranged inside the frame, the vertical support mechanism is located above the transverse support mechanism in the frame, a movable workpiece supporting plate is arranged on the transverse support mechanism, a chuck for fixing the sample is arranged on the workpiece supporting plate, a movable double-action cutter head is arranged on the vertical support mechanism, the double-action cutter head is provided with a milling cutter assembly through a cutter head mounting cavity, the frame is an integrated frame, a double-action cutter head that can move up and down is installed on the upper part, a chuck that can move left and right is installed in the middle part, after the chuck moves laterally to both sides to clamp the sample, it moves to a specific position, and with the cooperation of the double-action cutter head that can move up and down and the drill bit, grinding head and milling cutter thereon, the sample is specifically processed, the functionality is strong, and all processing requirements of the sample can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of metal cutting machine tools, in particular to a multi-purpose double-head prototyping machine for drilling, milling and grinding. Background Art

[0002] During the metal smelting process, its composition needs to be tested at a specific time and in a specific process location. The metal solution needs to be extracted and made into a solid sample. After the specific surface of the sample is processed to specific requirements, the processed surface needs to be tested with a specific instrument.

[0003] Among the sample equipment on the market, most are single-function equipment. For example, grinding wheel sample machines (see Chinese patent documents with application numbers 200420062482 and 200920189683) and fast-speed sample machines (see Chinese patent documents with application numbers 20042006248 and 201120034440) are needed. There are equipment with two functions combined: drilling and milling sample machines (see Chinese patent document with application number 200510122704.7). There are also equipment with double-head functions overlapping: fully automatic double-station fast milling sample machines (see Chinese patent document with application number 201120034441.5).

[0004] All of them have the following shortcomings: single-function equipment occupies a large area and is easily contaminated with foreign matter and dust during material transfer, which affects the test results; dual-function equipment has a single and fixed function and does not meet all sample processing requirements; double-head function overlapping equipment solves the problem of excessive milling cutter wear caused by diverse samples, but has a single function and does not meet all sample processing requirements. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-purpose double-head prototyping machine for drilling, milling and grinding to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A multi-purpose double-head prototyping machine for drilling, milling and grinding, comprising a frame, a base is arranged at the bottom of the frame, a lateral support mechanism and a vertical support mechanism are arranged inside the frame, the vertical support mechanism is located above the lateral support mechanism in the frame, a movable workpiece support plate is arranged on the lateral support mechanism, a chuck for clamping and fixing a sample is arranged on the workpiece support plate, a movable double-action cutter head is arranged on the vertical support mechanism, and a milling cutter assembly is arranged on the double-action cutter head through a cutter head mounting cavity;

[0008] The milling cutter assembly includes a milling cutter blade, a milling cutter disc, a chamfering cutter disc, a chamfering cutter blade and a shank. The milling cutter assembly is installed on the cutter head mounting cavity via the shank. A plurality of milling cutter blades are arranged in a circular array on the outer circumferential surface of the milling cutter disc. A chamfering cutter disc is arranged at the center of the disc surface of the milling cutter disc, and a chamfering cutter blade is arranged on the chamfering cutter disc.

[0009] As a further solution of the present invention: a cylindrical hole is opened at the center of the disc surface of the milling cutter disc, and the chamfering cutter disc is arranged in the cylindrical hole of the milling cutter disc and is fixed to the tool handle by fastening bolts passing through the milling cutter disc and the chamfering cutter disc.

[0010] As a further solution of the present invention: a spline anti-rotation structure is provided between the milling cutter disc, the chamfering cutter disc and the tool handle.

[0011] As a further scheme of the present invention: the transverse support mechanism includes a motor 1, a transverse screw and a workpiece support plate, the motor 1 is arranged on the inner side of the frame via a motor mounting seat, the output shaft of the motor 1 passes through the side of the frame and is connected to a pulley 1, a transverse screw is arranged inside the frame, one end of the transverse screw is arranged on a fixed block, the other end of the transverse screw passes through the frame and is connected to a pulley 2, the pulley 1 and the pulley 2 are connected by a belt 1, a transverse guide rail is horizontally arranged inside the frame and on the upper and lower sides of the transverse screw, a transverse nut seat is fixedly arranged on the back side of the workpiece support plate, the transverse nut seat is threadedly connected to the transverse screw, a transverse slider is arranged on the back side of the workpiece support plate and on the upper and lower sides of the transverse nut seat, the transverse slider is slidably connected to the transverse guide rail, and a chuck is arranged on the front side of the workpiece support plate.

[0012] As a further solution of the present invention: the workpiece support plate is in a “┤” structure.

[0013] As a further solution of the present invention: a micro cylinder is installed inside the chuck.

[0014] As a further scheme of the present invention: the vertical supporting mechanism comprises motor 2, a mounting base and a vertical screw rod, a fixing plate is fixedly arranged on the top surface of the frame, and motor 2 is fixedly arranged on one end of the bottom surface of the fixing plate, and motor 2 is located at the back side of the frame, and the output end of motor 2 passes through the fixing plate and is connected with pulley 3, a vertical screw rod is vertically arranged on the front side of the frame, the top end of the vertical screw rod passes through the fixing plate and is connected with pulley 4, and pulley 4 and pulley 3 are connected by belt 2, and vertical guide rails are vertically arranged inside the frame and on the left and right sides of the vertical screw rod, a vertical nut seat is fixedly arranged on the back side of the mounting base plate, and the vertical nut seat is threadedly connected to the vertical screw rod, a vertical slider is arranged on the back side of the mounting base plate and on the left and right sides of the vertical nut seat, the vertical slider is slidably connected to the vertical guide rail, and a double-moving cutter head is arranged on the front side of the mounting base plate.

[0015] As a further solution of the present invention: a stroke cylinder is installed on the double-moving cutter head.

[0016] As a further solution of the present invention: the double-moving cutter head is provided with a cold knife air blowing elbow for blowing the milling cutter assembly.

[0017] As a further solution of the present invention: a pair of opposing photoelectric switches are arranged inside the lateral support mechanism along the horizontal direction through a U-shaped groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The frame of the multi-purpose double-head milling machine for drilling, milling and grinding in the present invention is an integrated frame. Compared with other bolt-connected structures, it has greater strength and rigidity, reduces vibration during processing, and can process samples with higher hardness, with higher precision, stronger stability, and even higher efficiency. The faster the cooling speed during sample production, the higher the hardness of the sample. The integrated frame structure can process samples with higher hardness, shorten the sample production process, and thus shorten the cycle time of the entire inspection process;

[0020] 2. The frame of the multi-purpose double-head milling machine for drilling, milling and grinding in the present invention is an integrated frame, the upper part of which is equipped with a double-action cutter head that moves up and down, and a chuck that moves horizontally left and right. The double-action cutter head is provided with a knife-beating cylinder that can automatically replace the tool handle. With the cooperation of the double-action cutter head that moves up and down and the chuck that moves left and right, the cutting tool can be automatically replaced under the condition that the tool handle is put into and taken out of a specific position of the chuck. The chuck is provided with a tooling for placing the tool handle tool. After the chuck moves to the left and right sides, the tool handle tool can be replaced under the condition that an external device puts the tool handle tool into the tooling on the chuck and takes the tool handle tool out of the chuck tooling. In this way, the equipment can automatically replace the required drill bit, grinding head or milling cutter according to the processing requirements of the sample, and perform the required processing on the sample. The function of automatic tool changing allows a sample to complete all the required processing in the equipment, occupies a small area, and avoids problems such as contamination caused by the conversion of samples between various functional devices;

[0021] 3. In the present invention, a stroke cylinder is arranged on the double-acting cutter head, and a micro-cylinder is installed in the chuck. The sample height detection process is as follows: after the chuck clamps the sample, it moves under the stroke cylinder. After the stroke cylinder extends to support the upper surface of the sample, the cylinder stops extending. The stroke cylinder has sent the number of pulses corresponding to the extended stroke to the control system. The system calculates the height of the upper surface of the sample higher than the upper surface of the chuck claws based on the number of pulses and other information, thereby detecting the height of the sample and completing the detection. The process of sample height control is as follows: the external equipment puts the sample on the push rod on the micro-cylinder in the extended state in the chuck, and the stroke cylinder extends. After extending a certain distance, it supports the upper surface of the sample. Since the diameter of the stroke cylinder is larger than that of the micro-cylinder, the stroke cylinder continues to extend, and the micro-cylinder is contracting. During this process, the stroke cylinder is constantly moving toward the control system according to the extended distance. The system sends pulses. When the sent pulses reach the set number, the system puts the three-position five-way center-sealed double-coil solenoid valve that controls the stroke cylinder in the center-sealed state, and the stroke cylinder and the micro cylinder are in the stopped state. Then the claws of the chuck clamp the sample, and the stroke cylinder and the micro cylinder are retracted at the same time. From the time the system receives a certain number of pulses to the time the stroke cylinder and the micro cylinder are in the stopped state, the two cylinders have a certain small amount of expansion and contraction, and the expansion and contraction cannot be accurately controlled. However, the stroke cylinder will still send proportional pulses to the system during the small expansion and contraction process, so the system will still calculate this expansion and contraction, and then accurately calculate the actual height of the sample. This process completes the clamping of the sample, the approximate control of the sample height and the accurate measurement of the actual height, and has the function of detecting and controlling the sample height, and the requirements for external equipment to clamp and take out the sample are less.

[0022] 4. In the present invention, a pair of opposing photoelectric switches are installed inside the transverse support mechanism through a U-shaped groove. After the chuck clamps the sample, it passes through the measuring area formed by the U-shaped groove at a certain speed. When the sample blocks the light of the photoelectric switch, the photoelectric switch will send a message to the system; after the sample passes through the photoelectric switch, the photoelectric switch will send a message to the system. The system calculates the moving distance of the chuck during this period of time, infers the size of the sample diameter, and completes the measurement of the sample diameter. Through the parameters of the sample height and diameter size, the system controls one of the two moving cutter heads to descend to a certain height, controls the rotation speed of the moving cutter head, and controls the chuck to directly go to the starting point most suitable for the sample, and moves to a suitable processing end point at a suitable moving speed. Suitable processing parameters can be given for samples of different shapes, so as to achieve high efficiency and greatly reduce waste;

[0023] 5. The milling cutter assembly in the present invention includes a milling cutter blade, a milling cutter disc, a chamfering cutter disc, a chamfering blade and a shank. A plurality of milling cutter blades are arranged in a circular array on the outer circumferential surface of the milling cutter disc. A chamfering cutter disc is arranged at the center of the disc surface of the milling cutter disc. The chamfering cutter disc is provided with a chamfering blade. The milling cutter assembly can not only mill the end face of the sample, but also chamfer the standard sample, and is highly practical.

[0024] 6. The chamfering process is as follows: replace the chamfering tool as needed, clamp the sample on one side with the chuck, detect the height of the upper surface of the sample and the diameter of the sample. The program will calculate the height of the power head according to the height, diameter, and size of the chamfer, and then perform chamfering according to the calculated results according to the chamfering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a stereoscopic view of a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0027] Figure 2 This is the front view of a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0028] Figure 3 This is a schematic diagram of the structure of installing a base plate in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0029] Figure 4 This is the rear view of a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0030] Figure 5 This is a schematic diagram of the structure of the milling cutter assembly in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0031] Figure 6 This is a schematic diagram of the structure of a chuck in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0032] Figure 7 The schematic diagram of the structure of the tool sharpening assembly in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0033] Figure 8 This is a schematic diagram of the structure of the drill bit assembly in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0034] Fig. 9 The present invention is a structural schematic diagram of the combination of a milling cutter assembly and a drill bit assembly in a multi-purpose double-head prototyping machine for drilling, milling and grinding.

[0035] In the figure: 1, frame; 101, base; 2, horizontal support mechanism; 201, motor 1; 202, pulley 1; 203, belt 1; 204, pulley 2; 205, horizontal screw; 206, fixed block; 207, horizontal guide rail; 208, horizontal slide block; 209, chuck; 210, workpiece support plate; 3, vertical support mechanism; 301, fixed plate; 302, motor 2; 303, pulley 3; 3 04. Belt two; 305. Pulley four; 306. Mounting base plate; 307. Vertical screw; 4. Double-acting cutter head; 401. Cutter head mounting cavity; 402. Cold knife air blowing elbow; 5. Milling cutter assembly; 501. Milling cutter blade; 502. Milling cutter disc; 503. Chamfering cutter disc; 504. Chamfering blade; 6. Sharpening cutter assembly; 601. Sharpening grinding wheel; 7. Drill bit assembly; 701. Drill bit holder; 702. Drill bit. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figures 1 to 6 In an embodiment of the present invention, a multi-purpose double-head prototyping machine for drilling, milling and grinding includes a frame 1, a base 101 is provided at the bottom of the frame 1, a lateral support mechanism 2 and a vertical support mechanism 3 are provided inside the frame 1, the vertical support mechanism 3 is located above the lateral support mechanism 2 in the frame 1, a movable workpiece support plate 210 is provided on the lateral support mechanism 2, a chuck 209 for fixing the sample is provided on the workpiece support plate 210, a movable double-action cutter head 4 is provided on the vertical support mechanism 3, and a milling cutter assembly 5 is provided on the double-action cutter head 4 through a cutter head mounting cavity 401;

[0039] The milling cutter assembly 5 includes a milling cutter blade 501, a milling cutter disc 502, a chamfering cutter disc 503, a chamfering blade 504 and a shank. The milling cutter assembly 5 is installed on the cutter head mounting cavity 401 via the shank. A plurality of milling cutter blades 501 are arranged in a circular array on the outer circumferential surface of the milling cutter disc 502. A chamfering cutter disc 503 is arranged at the center of the disc surface of the milling cutter disc 502, and a chamfering blade 504 is arranged on the chamfering cutter disc 503.

[0040] When in use, the workpiece support plate 210 is driven by the lateral support mechanism 2 to drive the chuck 209 to move in the lateral direction, so as to adjust the position of the sample. The milling cutter assembly 5 is driven by the vertical support mechanism 3 to move in the vertical direction, so as to adjust the position of the milling cutter assembly 5. By arranging a milling cutter blade 501 and a chamfering blade 504 on the milling cutter assembly 5, the milling cutter assembly 5 can not only mill the end face of the sample, but also chamfer the standard sample.

[0041] See also Figure 5 A cylindrical hole is provided at the center of the milling cutter disc 502, and the chamfering cutter disc 503 is arranged in the cylindrical hole of the milling cutter disc 502, and is fixed to the tool handle by fastening bolts passing through the milling cutter disc 502 and the chamfering cutter disc 503. The cylindrical hole facilitates the embedded installation of the chamfering cutter disc 503 in the milling cutter disc 502, and the fastening bolts make the milling cutter disc 502 and the chamfering cutter disc 503 more firmly fixed on the tool handle.

[0042] See also Figure 5 A spline anti-rotation structure is provided between the milling cutter disc 502, the chamfering cutter disc 503 and the tool handle, so that the milling cutter assembly 5 is safer and more efficient during use.

[0043] See also Figure 1-4 The transverse support mechanism 2 includes a motor 201, a transverse screw 205 and a workpiece support plate 210. The motor 201 is arranged on the inner side of the frame 1 through a motor mounting seat. The output shaft of the motor 201 passes through the side of the frame 1 and is connected to a pulley 202. A transverse screw 205 is arranged inside the frame 1. One end of the transverse screw 205 is arranged on a fixed block 206. The other end of the transverse screw 205 passes through the frame 1 and is connected to a pulley 204. The pulley 202 and the pulley 204 are connected to each other. 4 are connected by a belt 203, and a transverse guide rail 207 is horizontally arranged inside the frame 1 and located on the upper and lower sides of the transverse screw 205. A transverse nut seat is fixedly arranged on the back side of the workpiece support plate 210, and the transverse nut seat is threadedly connected to the transverse screw 205. A transverse slider 208 is arranged on the back side of the workpiece support plate 210 and located on the upper and lower sides of the transverse nut seat. The transverse slider 208 is slidably connected to the transverse guide rail 207, and a chuck 209 is arranged on the front side of the workpiece support plate 210.

[0044] When in use, the motor 201 drives the pulley 202 to rotate via the belt 203, so that the pulley 204 drives the transverse screw 205 to rotate, and the transverse screw 205 drives the transverse nut seat to drive the workpiece support plate 210 to move in the transverse direction, thereby adjusting the position of the chuck 209 in the horizontal direction, and through the transverse slider 208 on the back of the workpiece support plate 210, the workpiece support plate 210 can move more stably in the horizontal direction, providing stability for the sample movement.

[0045] See also Figure 1-3 The workpiece support plate 210 is in a “┤” structure, which facilitates the installation of the chuck 209 on the workpiece support plate 210 .

[0046] See also Figure 1-4 The vertical support mechanism 3 includes a second motor 302, a mounting base plate 306 and a vertical screw 307. A fixing plate 301 is fixedly arranged on the top surface of the frame 1. One end of the bottom surface of the fixing plate 301 is fixedly arranged with a second motor 302. The second motor 302 is located on the back of the frame 1. The output end of the second motor 302 passes through the fixing plate 301 and is connected to a third pulley 303. A vertical screw 307 is vertically arranged on the front of the frame 1. The top end of the vertical screw 307 passes through the fixing plate 301 and is connected to a fourth pulley 305. The pulley four 305 is connected to the pulley three 303 through the belt two 304. A vertical guide rail is vertically arranged inside the frame 1 and on the left and right sides of the vertical screw 307. A vertical nut seat is fixedly arranged on the back of the mounting base 306. The vertical nut seat is threadedly connected to the vertical screw 307. A vertical slider is arranged on the back of the mounting base 306 and on the left and right sides of the vertical nut seat. The vertical slider is slidably connected to the vertical guide rail. A double-movable cutter head 4 is arranged on the front of the mounting base 306.

[0047] When in use, the motor 2 302 drives the pulley 3 303 to rotate via the belt 2 304, so that the pulley 4 305 drives the vertical screw 307 to rotate, and the vertical screw 307 drives the vertical nut seat to drive the mounting base plate 306 to move in the vertical direction, so as to adjust the position of the double-moving cutter head 4 in the vertical direction, and through the vertical slider on the back of the mounting base plate 306, the mounting base plate 306 can move more stably in the vertical direction, thereby providing stability for the sample movement.

[0048] See also Figure 1-3, a stroke cylinder is installed on the double-action cutter head 4, and a micro-cylinder is installed inside the chuck 209 to detect the sample height. The specific process is: after the chuck 209 clamps the sample, it moves under the stroke cylinder. After the stroke cylinder extends to support the upper surface of the sample, the stroke cylinder stops extending. The stroke cylinder has sent the number of pulses corresponding to the extended stroke to the control system. The system calculates the height of the upper surface of the sample higher than the upper surface of the chuck 209 claws based on the number of pulses and other information, thereby detecting the height of the sample and completing the detection; the process of controlling the sample height is: the external equipment puts the sample on the push rod on the micro-cylinder in the extended state in the chuck 209, and the stroke cylinder extends. After extending a certain distance, it supports the upper surface of the sample. Since the stroke cylinder diameter is larger than the micro-cylinder The cylinder has a large diameter, the stroke cylinder continues to extend, and the micro cylinder is contracting. During this process, the stroke cylinder has been continuously sending pulses to the control system according to the extended distance. When the sent pulses reach the set number, the system puts the three-position, five-way, center-sealed double-coil solenoid valve that controls the stroke cylinder in the center-sealed state, and the stroke cylinder and the micro cylinder will be in a stopped state. The claws of the chuck 209 clamp the sample, and the stroke cylinder and the micro cylinder are retracted at the same time. From the time the system receives a certain number of pulses to the time the stroke cylinder and the micro cylinder are in the stopped state, both cylinders have a certain small amount of expansion and contraction, and the expansion and contraction cannot be accurately controlled. However, during the small expansion and contraction process, the stroke cylinder will still send proportional pulses to the system, so the system will still calculate this expansion and contraction, and then accurately calculate the actual height of the sample.

[0049] The double-moving cutter head 4 is provided with a cold cutter air blowing elbow 402 for blowing the milling cutter assembly 5, so as to achieve blowing of the milling cutter assembly 5 during the processing.

[0050] See also Figure 1-3 A pair of opposing photoelectric switches are arranged inside the transverse support mechanism 2 along the horizontal direction through the U-shaped groove, that is, after the chuck 209 clamps the sample, it passes through the measuring area formed by the U-shaped groove at a certain speed. When the sample blocks the light of the photoelectric switch, the photoelectric switch will send a message to the system. After the sample passes through the photoelectric switch, the photoelectric switch will send a message to the system. The system calculates the moving distance of the chuck 209 during this period of time, infers the size of the sample diameter, and completes the measurement of the sample diameter. Through the parameters of the sample height and diameter size, the system controls the double-moving cutter head 4 to descend to a certain height and controls the rotation speed of the double-moving cutter head 4; at the same time, the chuck 209 is controlled to directly go to the starting point most suitable for the sample, and move to the suitable processing end point at a suitable moving speed. It can provide suitable processing parameters for samples of different shapes, achieve high efficiency, and greatly reduce waste.

[0051] Embodiment 2

[0052] See also Figure 7The difference between this embodiment and the first embodiment is that the milling cutter assembly 5 is replaced by a sharpening assembly 6, and the sharpening assembly 6 includes a sharpening wheel 601 and a tool handle. The inner cavity of the sharpening wheel 601 is provided with a grinding wheel reinforcement edge and a step hole fixed to the tool handle, as well as a cylindrical hole for positioning. The sharpening wheel 601 is fixed to the tool handle through the cylindrical hole by a fastening bolt.

[0053] Embodiment 3

[0054] See also Figure 8 The difference between this embodiment and the first embodiment is that the milling cutter assembly 5 is replaced by a drill assembly 7, and the drill assembly 7 includes a drill bit 702, a drill bit fixing seat 701 and a tool handle. The drill bit fixing seat 701 is used to fix the drill bit 702 and is connected to the tool handle. The drill bit fixing seat 701 has a cylindrical hole for positioning, which facilitates the installation of the drill bit 702 by tightening bolts.

[0055] Embodiment 4

[0056] See also Fig. 9 The difference between this embodiment and the first embodiment is that the two milling cutter assemblies 5 are replaced by any combination of a milling cutter assembly 5, a sharpening assembly 6 and a drill assembly 7.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-purpose double-head prototyping machine for drilling, milling and grinding, comprising a frame (1), wherein a base (101) is provided at the bottom of the frame (1), It is characterized in that The frame (1) is provided with a transverse support mechanism (2) and a vertical support mechanism (3), the vertical support mechanism (3) is located above the transverse support mechanism (2) in the frame (1), the transverse support mechanism (2) is provided with a movable workpiece support plate (210), the workpiece support plate (210) is provided with a chuck (209) for clamping and fixing the sample, the vertical support mechanism (3) is provided with a movable double-action cutter head (4), the double-action cutter head (4) is provided with a processing assembly via a cutter head mounting cavity (401), and the processing assembly includes a milling cutter assembly (5), a grinding cutter assembly (6) or a drill head assembly (7); The milling cutter assembly (5) comprises a milling cutter blade (501), a milling cutter disc (502), a chamfering cutter disc (503), a chamfering cutter blade (504) and a cutter handle; the milling cutter assembly (5) is mounted on the cutter head mounting cavity (401) via the cutter handle; a plurality of milling cutter blades (501) are arranged in a ring array on the outer circumferential surface of the milling cutter disc (502); a chamfering cutter disc (503) is arranged at the center of the disc surface of the milling cutter disc (502); and a chamfering cutter disc (503) is provided with a chamfering cutter blade (504); A micro cylinder is installed inside the chuck (209); The double-action cutter head (4) is provided with a stroke cylinder; A pair of opposing photoelectric switches are arranged inside the transverse support mechanism (2) along the horizontal direction via a U-shaped groove.

2. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 1, It is characterized in that A cylindrical hole is provided at the center of the milling cutter disc (502), and the chamfering cutter disc (503) is arranged in the cylindrical hole of the milling cutter disc (502) and is fixed to the tool handle by fastening bolts passing through the milling cutter disc (502) and the chamfering cutter disc (503).

3. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 2, It is characterized in that A spline anti-rotation structure is provided between the milling cutter disc (502), the chamfering cutter disc (503) and the tool handle.

4. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 1, It is characterized in that The transverse support mechanism (2) comprises a motor (201), a transverse screw (205) and a workpiece support plate (210); the motor (201) is arranged on the inner side of the frame (1) via a motor mounting seat; the output shaft of the motor (201) passes through the side of the frame (1) and is connected to a pulley (202); a transverse screw (205) is arranged inside the frame (1); one end of the transverse screw (205) is arranged on a fixed block (206); the other end of the transverse screw (205) passes through the frame (1) and is connected to a pulley (204); the pulley (202) and the pulley (204) are connected to each other. The two (204) are connected by a belt one (203); a transverse guide rail (207) is horizontally arranged inside the frame (1) and located on the upper and lower sides of the transverse screw rod (205); a transverse nut seat is fixedly arranged on the back of the workpiece support plate (210); the transverse nut seat is threadedly connected to the transverse screw rod (205); a transverse slider (208) is arranged on the back of the workpiece support plate (210) and located on the upper and lower sides of the transverse nut seat; the transverse slider (208) is slidably connected to the transverse guide rail (207); and a chuck (209) is arranged on the front of the workpiece support plate (210).

5. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 4, It is characterized in that The workpiece support plate (210) is in a "┤" structure.

6. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 1, It is characterized in that The vertical support mechanism (3) comprises a second motor (302), a mounting base plate (306) and a vertical screw rod (307). A fixing plate (301) is fixedly arranged on the top surface of the frame (1). One end of the bottom surface of the fixing plate (301) is fixedly arranged with the second motor (302). The second motor (302) is located on the back of the frame (1). The output end of the second motor (302) passes through the fixing plate (301) and is connected to a third pulley (303). A vertical screw rod (307) is vertically arranged on the front surface of the frame (1). The top end of the vertical screw rod (307) passes through the fixing plate (301) and is connected to a belt pulley (303). Wheel four (305), the pulley four (305) is connected to the pulley three (303) through the belt two (304), a vertical guide rail is vertically arranged inside the frame (1) and on the left and right sides of the vertical screw rod (307), a vertical nut seat is fixedly arranged on the back side of the mounting base (306), and the vertical nut seat is threadedly connected to the vertical screw rod (307), a vertical slider is arranged on the back side of the mounting base (306) and on the left and right sides of the vertical nut seat, and the vertical slider is slidably connected to the vertical guide rail, and a double-movable cutter head (4) is arranged on the front side of the mounting base (306).

7. A multi-purpose double-head prototyping machine for drilling, milling and grinding according to claim 1, It is characterized in that The double-moving cutter head (4) is provided with a cold cutter air blowing elbow (402) for blowing the milling cutter assembly (5).

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