CN115816140A - Automatic feeding device of CNC (computer numerical control) machine tool - Google Patents

Abstract

The invention discloses an automatic feeding device for a CNC machine tool, which includes a supporting mechanism and a second motor. The first motor is arranged outside the supporting mechanism, and a lifting mechanism is arranged on the back of the first motor, and a driving rod is arranged on the left side of the lifting mechanism. A connection mechanism is provided on the left side of the driving rod, and an operation panel is installed at the bottom of the connection mechanism, and a turning mechanism is provided on the outside of the operation panel, an adjustment mechanism is provided at the bottom of the second motor, and a linkage mechanism is provided at the bottom of the second motor, and There is a horizontal plate at the bottom of the linkage mechanism, and a twist rod is arranged inside the horizontal plate. A combination mechanism is arranged on the outside of the twist rod, and a positioning mechanism is arranged on the other side of the combination mechanism. This feeding device can make the vertical on the combination mechanism The shaft is aligned with the docking sleeve, without manual observation, which is more convenient for docking, and the extrusion plate and right-angle chuck can clamp the combined mechanism from the side to ensure the stability of the combined mechanism during movement.

Description

A CNC machine tool automatic feeding device

technical field

The invention relates to the technical field of CNC machine tools, in particular to an automatic feeding device for CNC machine tools.

Background technique

CNC machine tool can also be called numerical control machine tool. It is a kind of highly automatic and high-precision processing equipment. It is usually used for the processing of various industrial parts. Input the pre-written program into the CNC machine tool, and the CNC machine tool will start The processing of parts can ensure the production quality of complex parts and facilitate the mass production of parts. In the use of CNC machine tools, the feeding device will be used for feeding, and the combined parts will be placed on the designated place through the automatic feeding device. The location is convenient for CNC processing equipment to process, ensuring the accuracy of processing and reducing manual participation;

After retrieval, the existing Chinese Patent Publication No. is: CN115156973A, which provides a feeding device for a CNC machine tool, including a mechanical arm and a part fixture, and the parts to be processed are placed in some fixtures on the part fixture, and the mechanical arm The arm end of the arm is provided with two cylindrical sleeves, and the distance between the two cylindrical sleeves is adjustable. The lower half of the inner cavity of the cylindrical sleeve begins to have a lower notch, and the upper half of the inner cavity of the cylindrical sleeve An upper notch communicating with the lower notch is provided. By setting fixed vertical shafts on both sides of the part fixture, two cylindrical sleeves corresponding to the vertical shafts are provided at the head end of the mechanical arm, and the inner diameter of the lower half of the cylindrical sleeve inner cavity is evenly reduced from bottom to top. Design, when the two cylindrical sleeves are inserted into the two vertical shafts by the mechanical arm and fixed, even when the part fixture is shifted due to the vibration of the machine tool, it can accurately align the part fixture, and then Efficient and stable transfer and loading of the processed parts as a whole;

Although the above-mentioned patent can facilitate the fixing rod and release of the whole part, the above-mentioned feeding device still has the following problems: the above-mentioned CNC machine tool feeding device allows the cylindrical sleeve to move and align with the vertical axis by controlling two motors , it takes a lot of time, and there will be visual errors at the same time, it is impossible to move the part to the designated position through the extrusion mechanism, thereby reducing the accuracy of the alignment of the cylindrical sleeve with the vertical axis, and the operation panel of the feeding mechanism is installed The parts cannot be turned over when assembling, so that it is necessary to manually observe the alignment from the bottom, which is inconvenient to use and makes the work difficult.

In view of the above problems, an innovative design is carried out on the basis of the original CNC machine tool automatic feeding device.

Contents of the invention

The object of the present invention is to provide an automatic feeding device for CNC machine tools to solve the above-mentioned background technology. The feeding device for CNC machine tools currently on the market controls two motors so that the moving position of the cylindrical sleeve is aligned with the vertical axis by the naked eye. , it takes a lot of time, and there will be visual errors at the same time, it is impossible to move the part to the designated position through the extrusion mechanism, thereby reducing the accuracy of the alignment of the cylindrical sleeve with the vertical axis, and the operation panel of the feeding mechanism is installed The parts cannot be turned over when assembling, so that it is necessary to manually observe the alignment from the bottom, which is inconvenient to use and makes the work difficult.

In order to achieve the above object, the present invention provides the following technical solutions: a CNC machine tool automatic feeding device, including a support mechanism and a motor two, the outside of the support mechanism is provided with a motor one, and the back of the motor one is provided with a lifting mechanism, and the lifting mechanism A driving rod is provided on the left side, and a connecting mechanism is provided on the left side of the driving rod, and an operation panel is installed at the bottom of the connecting mechanism, and an overturning mechanism is provided on the outside of the operation panel, and an adjustment mechanism is provided at the bottom of the second motor. The second bottom is provided with a linkage mechanism, and the bottom of the linkage mechanism is provided with a horizontal plate, and the inside of the horizontal plate is provided with a twist rod, the outer side of the twist rod is provided with a combination mechanism, and the other side of the combination mechanism is provided with a positioning mechanism.

Preferably, the support mechanism includes a main bracket, legs and a bearing plate, and the main bracket is in an "L" shape, and two legs are welded at the bottom of the main bracket, and a bearing plate is welded at the front end of the main bracket, and the bearing A motor one is installed on the top of the plate.

Preferably, the lifting mechanism includes a first linkage rod, a bump, a straight rod, a second linkage rod and an eccentric shaft, and the first linkage rod is connected to the output end of the motor one, and the outer bottom of the first linkage rod is set There is a bump, and the bump is connected to the straight rod through the collar at the bottom of the straight rod. The straight rod is hinged to the left side of the second linkage rod through the same structure, and the right side of the second linkage rod is provided with an eccentric shaft. And the eccentric shaft runs through the main support and is connected with the bottom of the driving rod.

Preferably, the drive rod is connected to the back of the operation panel through a connection mechanism, the connection mechanism includes a mounting cylinder and a hoop, and a hoop is fixed on the outside of the installation cylinder, and the hoop is connected to the back of the operation panel through bolts. The installation cylinder can be rotated outside the upper end of the drive rod, and the back of the operating panel is also provided with a turn-over mechanism, and the other end of the turn-over mechanism is fixed on the outside of the main bracket.

Preferably, the turning mechanism includes a motor, a rotating rod, a sleeve, a movable rod, a chute and a limit block, and the motor is fixed on the outside of the main bracket, a rotating rod is provided on the left side of the motor, and the rotating rod is The side is connected with a sleeve, and the inside of the sleeve is provided with a movable rod, and the bottom of the movable rod is connected with the operation panel, the two sides of the movable rod are provided with a square chute, and the inside of the chute is provided with a limit block, and the limit The block is welded inside the sleeve.

Preferably, the second motor is arranged on the top of the operation panel, and the left side of the operation panel is provided with grooves at both ends, and an adjustment mechanism is arranged inside the groove, and the adjustment mechanism includes a screw rod, a slider, a limit rod and Butt sleeve, and the outer side of the screw rod is provided with a slider, and the inside of both sides of the slider is provided with a limit rod, and the length of the limit rod is consistent with the length of the screw rod, and the screw rod is located in the middle of the two limit rods. The bottom of the slider is provided with a butt sleeve, and the bottom of the butt sleeve corresponds to the position of the combined mechanism. The bottom of the second output shaft of the motor can drive the screw to rotate, and a linkage mechanism is also provided outside the second output shaft of the motor.

Preferably, the linkage mechanism includes a sprocket 1, a chain and a sprocket 2, and a chain is arranged on the outside of the sprocket 1, and a sprocket 2 is arranged inside the other side of the chain, and the sprocket 1, the chain and the sprocket 2 Mesh with each other, the inside of the sprocket two is provided with a twist rod, and the outside of the twist rod is provided with a protrusion, and the protrusion can move on the limit plate at the upper end of the horizontal plate, and the upper end of the twist rod is provided with a disc, so The bottom of the twist rod is provided with an extruding plate, and the extruding plate and the positioning mechanism can jointly extrude the combined mechanism.

Preferably, the combined mechanism includes a bottom plate, a part fixture and a vertical shaft, and multiple sets of part fixtures are arranged on the top of the bottom plate, vertical shafts are arranged on both sides of the top of the bottom plate, and the vertical shaft can be snapped into the inside of the butt sleeve, and the butt joint A plurality of magnetic devices are arranged inside the sleeve, and the bottom of the bottom plate is in contact with two positioning mechanisms, and the positioning mechanism includes an electric telescopic rod, a right-angle chuck and a compression spring, and the front end of the electric telescopic rod is connected with a right-angle chuck through a bearing , the right-angle chuck is composed of a right-angle and an extension plate, and a compression spring is connected between the extension plates of the two right-angle chucks, and the distance between the two right-angle chucks matches the size of the bottom plate.

Compared with the prior art, the beneficial effects of the present invention are: the CNC machine tool automatic feeding device;

1. The second rotation of the motor drives the rotation of the first sprocket, and the first rotation of the sprocket drives the second rotation of the sprocket through the chain. The rod gradually descends so that the extrusion plate at the bottom of the twist rod pushes the combination mechanism gradually close to the two right-angle chucks, and the right-angle chucks are attached to the two right angles of the bottom plate. Make the compression spring expand and contract until the angle of the right-angle chuck and the bottom plate are fully fitted. At this time, the offset of the combined mechanism is corrected, so that the vertical axis on the combined mechanism can be aligned with the docking sleeve, which is more convenient for docking without manual observation. The pressing plate and the right-angle chuck can clamp the combination mechanism from the side to ensure the stability of the combination mechanism during movement.

2. By starting the motor one, the motor one will drive the first linkage rod to rotate clockwise. There is a bump on the outer bottom of the first linkage rod, and the bump is placed on the bottom of the straight rod. The upper end of the straight rod is also installed on the second rod in the same way. The left end of the outer side of the linkage rod. At this time, the rotation of the first linkage rod will drive the second linkage rod to rotate around the eccentric shaft through the straight rod, so that the drive rod will rotate to the lower end. At this time, start the motor, and the motor will drive the rotation rod to rotate. The sleeve is driven to rotate, and a movable rod is installed through the sleeve, and the bottom of the movable rod is connected to the operation panel. At this time, the rotation of the sleeve will drive the movable rod to move downward according to the moving direction of the limit block in the chute, thus pushing the When the operation panel is turned down, the operation panel can be rotated around the installation cylinder. At this time, it is convenient to place the combination mechanism. In the initial state, the bottom of the operation panel is facing the side, which can make it easier for the staff to install the combination mechanism, facilitate the alignment of the combination mechanism, and reduce the workload. Difficulty, can be quickly aligned and installed.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the feeding device of the present invention before use;

Fig. 2 is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the combination mechanism and the positioning mechanism of the present invention;

Fig. 4 is the schematic diagram of the structure of the feeding device of the present invention after use;

Fig. 5 is a schematic diagram of the front three-dimensional structure of the feeding device of the present invention;

Fig. 6 is a schematic diagram of the three-dimensional structure of the positioning mechanism and the adjustment mechanism of the present invention;

Fig. 7 is a side sectional schematic diagram of the turning mechanism of the present invention.

In the figure: 1, support mechanism; 101, main bracket; 102, outrigger; 103, bearing plate; 2, motor one; 3, lifting mechanism; 301, first linkage rod; 302, bump; 304, the second linkage rod; 305, the eccentric shaft; 4, the driving rod; 5, the connecting mechanism; 501, the installation cylinder; 502, the hoop; 6, the operation panel; Rod; 703, sleeve; 704, movable rod; 705, chute; 706, limit block; 8, motor two; 9, adjustment mechanism; 901, screw mandrel; 902, slide block; , butt sleeve; 10, horizontal plate; 11, linkage mechanism; 1101, sprocket one; 1102, chain; 1103, sprocket two; 12, twist rod; 1201, disc; 1202, extrusion plate; 13, combined mechanism 1301, base plate; 1302, part fixture; 1303, vertical shaft; 14, positioning mechanism; 1401, electric telescopic rod; 1402, right-angle chuck; 1403, compression spring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-7, the present invention provides a technical solution: a CNC machine tool automatic feeding device, including a support mechanism 1 and a motor 2 8, a motor 1 is provided on the outside of the support mechanism 1, and a motor 2 is provided on the back of the motor 2 The lifting mechanism 3, and the left side of the lifting mechanism 3 is provided with a drive rod 4, the left side of the drive rod 4 is provided with a connecting mechanism 5, and the bottom of the connecting mechanism 5 is equipped with an operation panel 6, and the outside of the operation panel 6 is provided with a turning mechanism 7, The bottom of the motor two 8 is provided with an adjustment mechanism 9, the bottom of the motor two 8 is provided with a linkage mechanism 11, and the bottom of the linkage mechanism 11 is provided with a horizontal plate 10, and the inside of the horizontal plate 10 is provided with a twist rod 12, and the outside of the twist rod 12 is provided with a combination mechanism 13, and the other side of the combination mechanism 13 is provided with a positioning mechanism 14.

The support mechanism 1 includes a main bracket 101, legs 102 and a bearing plate 103, and the main bracket 101 is in an "L" shape, and the bottom of the main bracket 101 is welded with two legs 102, and the front end of the main bracket 101 is welded with a bearing plate 103, And the upper end of the bearing plate 103 is equipped with a motor-2 to ensure the stability of the feeding device, which can be independently supported beside the CNC machine tool.

The lifting mechanism 3 includes a first linkage rod 301, a projection 302, a straight rod 303, a second linkage rod 304 and an eccentric shaft 305, and the first linkage rod 301 is connected with the output end of the motor one 2, and the first linkage rod 301 outside The bottom is provided with a bump 302, and the bump 302 is connected to the straight rod 303 through the collar at the bottom of the straight rod 303. The straight rod 303 is hinged to the left side of the second linkage rod 304 through the same structure, and the second linkage rod 304 The right side is provided with an eccentric shaft 305, and the eccentric shaft 305 runs through the main bracket 101 and is connected to the bottom of the driving rod 4, which is convenient for loading and unloading.

The drive rod 4 is connected to the back of the operation panel 6 through the connection mechanism 5. The connection mechanism 5 includes a mounting cylinder 501 and a hoop 502, and the outside of the installation cylinder 501 is fixed with a hoop 502, and the hoop 502 is connected to the back of the operation panel 6 through bolts. , the mounting cylinder 501 can rotate outside the upper end of the drive rod 4, the back of the operating panel 6 is also provided with a turning mechanism 7, and the other end of the turning mechanism 7 is fixed on the outside of the main bracket 101, so that the operating panel 6 can be turned over smoothly.

The turning mechanism 7 includes a motor 701, a rotating rod 702, a sleeve 703, a movable rod 704, a chute 705 and a limit block 706, and the motor 701 is fixed on the outside of the main bracket 101, and the left side of the motor 701 is provided with a rotating rod 702, And the left side of the rotating rod 702 is connected with a sleeve 703, and the inside of the sleeve 703 is provided with a movable rod 704, and the bottom of the movable rod 704 is connected with the operation panel 6, and the two sides of the movable rod 704 are provided with a square chute 705, and the sliding A limit block 706 is arranged inside the groove 705, and the limit block 706 is welded inside the sleeve 703, which facilitates the installation of the operation panel 6 and the combined mechanism 13.

The motor two 8 is arranged on the upper end of the operation panel 6, and the left side of the operation panel 6 is provided with grooves at both ends, and the inside of the groove is provided with an adjustment mechanism 9, and the adjustment mechanism 9 includes a screw rod 901, a slide block 902, and a limit rod 903 and the butt sleeve 904, and the outer side of the screw rod 901 is provided with a slider 902, and the inside of both sides of the slider 902 is provided with a limit rod 903, and the length of the limit rod 903 is consistent with the length of the screw rod 901, and the screw rod 901 is located at two In the middle of the limit rod 903, the bottom of the slider 902 is provided with a butt sleeve 904, and the bottom of the butt sleeve 904 corresponds to the position of the combined mechanism 13, the bottom of the output shaft of the motor 28 can drive the screw rod 901 to rotate, and the outside of the output shaft of the motor 28 is also provided There is a linkage mechanism 11, which can allow the position of the butt sleeve 904 to be adjusted.

Linkage mechanism 11 comprises sprocket one 1101, chain 1102 and sprocket two 1103, and sprocket one 1101 outside is provided with chain 1102, and chain 1102 other side inside is provided with sprocket two 1103, and sprocket one 1101, chain 1102 and sprocket 2 1103 mesh with each other, sprocket 2 1103 is provided with a twist rod 12 inside, and the outside of the twist rod 12 is provided with a protrusion, and the protrusion can move on the limit plate at the upper end of the horizontal plate 10, and the twist rod 12 A disc 1201 is provided at the upper end, and a pressing plate 1202 is provided at the bottom of the twist rod 12, and the pressing plate 1202 and the positioning mechanism 14 can jointly press the combined mechanism 13, so that the pressing plate 1202 can move downward.

The combined mechanism 13 includes a bottom plate 1301, a part fixture 1302 and a vertical shaft 1303, and the upper end of the bottom plate 1301 is provided with multiple sets of part fixtures 1302, and the upper end of the bottom plate 1301 is provided with a vertical shaft 1303 on both sides, and the vertical shaft 1303 can be snapped into the inside of the docking sleeve 904 , and the inside of the docking sleeve 904 is provided with a plurality of magnetic devices, the bottom of the bottom plate 1301 is in contact with the two positioning mechanisms 14, and the positioning mechanism 14 includes an electric telescopic rod 1401, a right-angle chuck 1402 and a compression spring 1403, and the electric telescopic rod 1401 The front end is connected with a right-angle chuck 1402 through a bearing. The right-angle chuck 1402 is composed of a right angle and an extension plate, and a compression spring 1403 is connected between the extension plates of the two right-angle chucks 1402. The distance between the two right-angle chucks 1402 is the same as The dimensions of the bottom plate 1301 match, and it is convenient to clamp the combined mechanism 13 from the side.

Working principle: When using the automatic feeding device for CNC machine tools, first put multiple parts in the part fixture 1302 to complete the installation work, then attach the left side of the bottom plate 1301 to the extrusion plate 1202 in the initial state, and then start the motor 2 8, the motor 2 8 will drive the screw rod 901 with two sections of opposite threads to rotate, so that the slider 902 penetrating through the screw rod 901 will move towards each other under the action of the limit rod 903 penetrating on both sides, thereby driving the pair of butt sleeves 904 Quasi-vertical axis 1303, at the same time motor two 8 rotations drive sprocket one 1101 to rotate, sprocket one 1101 drives sprocket two 1103 to rotate through chain 1102, sprocket two 1103 can make twist rod 12 protrude on the side according to the limit of side The moving direction on the bit plate moves up and down, so that the twist rod 12 gradually descends so that the extrusion plate 1202 at the bottom of the twist rod 12 pushes the combined mechanism 13 to gradually approach the two right-angle chucks 1402, and the right-angle chuck 1402 is attached to the two sides of the bottom plate 1301. In this process, the bottom plate 1301 is pushed into contact with the part of the right-angle chuck 1402, so that the compression spring 1403 expands and contracts until the angle between the right-angle chuck 1402 and the bottom plate 1301 is completely attached, at this time, the offset of the combination mechanism 13 is dialed. Positively, the vertical axis 1303 on the combination mechanism 13 can be aligned with the docking sleeve 904 without manual observation, which is more convenient for docking, and the extrusion plate 1202 and the right-angle chuck 1402 can clamp the combination mechanism 13 from the side to ensure that the combination mechanism 13 Stability during the moving process, then start the electric telescopic rod 1401, so that the right-angle chuck 1402 drives the bottom plate 1301 to move backward so that the vertical shaft 1303 is inserted into the docking sleeve 904 to complete the docking, and then start the motor one 2, and the motor one 2 will drive the second A linkage rod 301 rotates clockwise, the outer bottom of the first linkage rod 301 is provided with a protrusion 302, and the protrusion 302 is sleeved on the bottom of the straight rod 303, and the upper end of the straight rod 303 is also installed on the outer left end of the second linkage rod 304 in the same way. At this time, the rotation of the first linkage rod 301 will drive the second linkage rod 304 to rotate around the eccentric shaft 305 through the straight rod 303, thereby allowing the drive rod 4 to rotate to the lower end. At this time, start the motor 701, and the motor 701 will drive the rotation rod 702 to rotate , the rotating rod 702 drives the sleeve 703 to rotate, and the movable rod 704 is installed through the sleeve 703, and the bottom of the movable rod 704 is connected to the operation panel 6. At this time, the rotation of the sleeve 703 will drive the movable rod 704 to slide in accordance with the limit block 706. The direction of movement in the slot 705 moves downwards, thereby pushing the operating panel 6 to turn downwards, and the operating panel 6 can rotate around the installation cylinder 501. At this time, it is convenient to place the combination mechanism 13, and the extension of the electric telescopic rod 1401 can make the right-angle clamp The head 1402 drives the vertical shaft 1303 to disengage from the docking sleeve 904. The electric telescopic rod 1401 is a relatively mature technology in the existing market, and will not be detailed here. The docking sleeve 904 can loosen the vertical shaft 1303 through electromagnetic, and at this time, the reverse rotation of the motor 2. 8. Drive the extrusion plate 1202 with the above operation, but this time it is reverse movement, so that the extrusion plate 1202 no longer squeezes the bottom plate 1301, so that the combined mechanism 13 can fall off, and it is placed at the designated position for CNC machining, and the entire feeding process is completed. Material work, the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (8)

1. A CNC machine tool automatic feeding device, comprising support mechanism (1) and motor two (8), is characterized in that: described support mechanism (1) outside is provided with motor one (2), and motor one (2) The back is provided with a lifting mechanism (3), and the left side of the lifting mechanism (3) is provided with a driving rod (4), and the left side of the driving rod (4) is provided with a connecting mechanism (5), and the bottom of the connecting mechanism (5) is installed There is an operation panel (6), and an overturning mechanism (7) is provided on the outside of the operation panel (6), an adjustment mechanism (9) is provided at the bottom of the second motor (8), and a linkage is provided at the bottom of the second motor (8). mechanism (11), and the bottom of the linkage mechanism (11) is provided with a horizontal plate (10), and the inside of the horizontal plate (10) is provided with a twist rod (12), and the outside of the twist rod (12) is provided with a combination mechanism (13 ), and the other side of the combined mechanism (13) is provided with a positioning mechanism (14). 2. A kind of CNC machine tool automatic feeding device according to claim 1, characterized in that: said support mechanism (1) includes a main support (101), supporting legs (102) and bearing plate (103), and The main support (101) is "L" shaped, and the bottom of the main support (101) is welded with two legs (102), and the front end of the main support (101) is welded with a bearing plate (103), and the bearing plate (103) A motor one (2) is installed on the upper end. 3. A CNC machine tool automatic feeding device according to claim 2, characterized in that: the lifting mechanism (3) includes a first linkage rod (301), a bump (302), a straight rod (303) , the second linkage lever (304) and the eccentric shaft (305), and the first linkage lever (301) is connected with the output end of the motor one (2), and the outer bottom of the first linkage lever (301) is provided with a bump ( 302), and the projection (302) is connected with the straight rod (303) through the collar at the bottom of the straight rod (303), and the straight rod (303) is hinged with the outside left side of the second linkage rod (304) through the same structure connected, and the right side of the second linkage rod (304) is provided with an eccentric shaft (305), and the eccentric shaft (305) passes through the main bracket (101) and is connected to the bottom of the drive rod (4). 4. A kind of CNC machine tool automatic feeding device according to claim 2, characterized in that: the drive rod (4) is connected to the back of the operation panel (6) through a connecting mechanism (5), and the connecting mechanism (5) ) includes an installation cylinder (501) and a hoop (502), and the outside of the installation cylinder (501) is fixed with a hoop (502), and the hoop (502) is connected to the back of the operation panel (6) through bolts, the installation The barrel (501) can rotate outside the upper end of the drive rod (4), and the back of the operating panel (6) is also provided with a turning mechanism (7), and the other end of the turning mechanism (7) is fixed on the outside of the main bracket (101) . 5. A kind of CNC machine tool automatic feeding device according to claim 1, characterized in that: the turning mechanism (7) includes a motor (701), a rotating rod (702), a sleeve (703), a movable Rod (704), chute (705) and limit block (706), and the motor (701) is fixed on the outside of the main bracket (101), the left side of the motor (701) is provided with a rotating rod (702), and rotates The left side of the rod (702) is connected with a sleeve (703), and the inside of the sleeve (703) is provided with a movable rod (704), and the bottom of the movable rod (704) is connected with the operation panel (6), and the movable rod ( 704) is provided with a square chute (705) on both sides, and a limit block (706) is arranged inside the chute (705), and the limit block (706) is welded inside the sleeve (703). 6. A kind of CNC machine tool automatic feeding device according to claim 1, characterized in that: the second motor (8) is arranged on the upper end of the operation panel (6), and the left side of the operation panel (6) is provided with two ends groove, and an adjustment mechanism (9) is provided inside the groove, and the adjustment mechanism (9) includes a screw rod (901), a slider (902), a limit rod (903) and a butt sleeve (904), and A slider (902) is provided through the outer side of the screw rod (901), and a limit rod (903) is installed inside both sides of the slider (902), and the length of the limit rod (903) is consistent with the length of the screw rod (901). The screw rod (901) is located between the two limit rods (903), the bottom of the slider (902) is provided with a butt sleeve (904), and the bottom of the butt sleeve (904) corresponds to the position of the combination mechanism (13), The bottom of the output shaft of the second motor (8) can drive the screw rod (901) to rotate, and a linkage mechanism (11) is also arranged outside the output shaft of the second motor (8). 7. A kind of CNC machine tool automatic feeding device according to claim 1, characterized in that: said linkage mechanism (11) includes sprocket one (1101), chain (1102) and sprocket two (1103), And sprocket one (1101) outside is provided with chain (1102), and chain (1102) other side inside is provided with sprocket two (1103), and sprocket one (1101), chain (1102) and sprocket two ( 1103) are engaged with each other, the inside of the second sprocket (1103) is provided with a twist rod (12), and the outside of the twist rod (12) is provided with a protrusion, and the protrusion can be placed on the limit plate at the upper end of the horizontal plate (10) Moving up, the upper end of the twist rod (12) is provided with a disc (1201), the bottom of the twist rod (12) is provided with a squeeze plate (1202), and the squeeze plate (1202) and the positioning mechanism (14) can be Co-extruding combined mechanism (13). 8. A kind of CNC machine tool automatic feeding device according to claim 6, characterized in that: said combined mechanism (13) includes a base plate (1301), a part fixture (1302) and a vertical shaft (1303), and the base plate The upper end of (1301) is provided with multiple sets of parts fixtures (1302), and the upper end of the bottom plate (1301) is provided with vertical shafts (1303) on both sides, and the vertical shafts (1303) can be snapped into the inside of the butt sleeve (904), and the butt sleeve (904) is provided with a plurality of magnetic devices inside, the bottom of the bottom plate (1301) is in contact with two positioning mechanisms (14), and the positioning mechanism (14) includes an electric telescopic rod (1401), a right-angle chuck (1402) and a compression spring (1403), and the front end of the electric telescopic rod (1401) is connected with a right-angle chuck (1402) through a bearing. The right-angle chuck (1402) is composed of a right angle and an extension plate, and two right-angle chucks ( A compression spring (1403) is connected between the extension plates of 1402), and the distance between the two right-angle chucks (1402) matches the size of the bottom plate (1301).

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