Automatic feeding device for CNC machine tools

Abstract

The present invention discloses an automatic feeding device for a CNC machine tool, comprising a supporting mechanism and a second motor, wherein the first motor is provided on the outside of the supporting mechanism, and a lifting mechanism is provided on the back of the first motor, and a driving rod is provided on the left side of the lifting mechanism, a connecting mechanism is provided on the left side of the driving rod, and an operating panel is installed at the bottom of the connecting mechanism, and a flipping mechanism is provided on the outside of the operating panel, an adjusting mechanism is provided at the bottom of the second motor, a linkage mechanism is provided at the bottom of the second motor, and a horizontal plate is provided at the bottom of the linkage mechanism, and a twisted rod is provided through the inside of the horizontal plate, a combining mechanism is provided on the outside of the twisted rod, and a positioning mechanism is provided on the other side of the combining mechanism. This feeding device can align the vertical axis on the combining mechanism with the docking sleeve, without the need for manual observation, and is more convenient for docking, and the extrusion plate and the right-angle chuck can clamp the combining mechanism from the side to ensure the stability of the combining mechanism during movement.

Description

Technical Field

[0001] The present invention relates to the technical field of CNC machine tools, in particular to an automatic feeding device for CNC machine tools. Background Art

[0002] CNC machine tools, also known as numerically controlled machine tools, are highly automated and high-precision processing equipment commonly used for processing various industrial parts. Pre-programmed programs are input into the CNC machine, and the CNC machine begins processing the parts. This ensures the production quality of complex parts and facilitates mass production of parts. A feeding device is used in conjunction with CNC machine tools for loading. The automated feeding device places assembled parts in designated locations for easy processing by the CNC processing equipment, ensuring processing accuracy and reducing manual intervention.

[0003] After searching, the existing Chinese patent publication number is: CN115156973A, which provides a loading device for a CNC machining center, including a robotic arm and a part fixture. The parts to be processed are placed in a number of fixtures on the part fixture. The arm end of the robotic arm is provided with two cylindrical sleeves, and the spacing value of the two cylindrical sleeves is adjustable. The lower half of the inner cavity of the cylindrical sleeve begins to have a lower slot, and the upper half of the inner cavity of the cylindrical sleeve is provided with an upper slot that communicates with the lower slot. By providing fixed vertical axes on both sides of the part fixture, and cooperating with the head end of the robotic arm with two cylindrical sleeves corresponding to the vertical axes, and utilizing the structural design in which the inner diameter of the lower half of the inner cavity of the cylindrical sleeve decreases uniformly from bottom to top, when the robotic arm inserts the two cylindrical sleeves into the two vertical axes respectively and fixes them, even if the part fixture is offset due to the vibration of the machine tool operation, it can still accurately align the part fixture, thereby efficiently and stably transferring and loading the entire processed part.

[0004] Although the above patent can facilitate the fixing and releasing of the entire part, the above feeding device still has the following problems: the above CNC machine feeding device controls two motors to move the cylindrical sleeve to align it with the vertical axis with the naked eye, which takes a lot of time and there will be visual errors. The part cannot be moved to the specified position as a whole through the extrusion mechanism, thereby reducing the accuracy of the alignment between the cylindrical sleeve and the vertical axis. In addition, the operating panel of this feeding mechanism cannot be flipped when installing the part group, so that manual observation of the alignment status from the bottom is required, which is inconvenient to use and causes certain work difficulties.

[0005] In response to the above problems, an innovative design was carried out based on the original CNC machine tool automatic feeding device. Summary of the Invention

[0006] The object of the present invention is to provide an automatic feeding device for CNC machine tools to solve the problem raised in the above background technology that the feeding device for CNC machine tools currently on the market operates two motors to move the cylindrical sleeve to a position and aligns it with the vertical axis using the naked eye, which takes a lot of time and has visual errors. It is impossible to move the parts as a whole to the specified position through the extrusion mechanism, thereby reducing the accuracy of the alignment between the cylindrical sleeve and the vertical axis. In addition, the operating panel of this feeding mechanism cannot be flipped over when installing the parts group, so that manual observation of the alignment status from the bottom is required, which is inconvenient to use and causes certain working difficulties.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic feeding device for a CNC machine tool, comprising a support mechanism and a second motor, wherein the first motor is provided on the outside of the support mechanism, and a lifting mechanism is provided on the back of the first motor, and a driving rod is provided on the left side of the lifting mechanism, a connecting mechanism is provided on the left side of the driving rod, and an operating panel is installed at the bottom of the connecting mechanism, and a flipping mechanism is provided on the outside of the operating panel, an adjusting mechanism is provided at the bottom of the second motor, a linkage mechanism is provided at the bottom of the second motor, and a horizontal plate is provided at the bottom of the linkage mechanism, and a twisted rod is provided through the inside of the horizontal plate, a combining mechanism is provided on the outside of the twisted rod, and a positioning mechanism is provided on the other side of the combining mechanism.

[0008] Preferably, the support mechanism includes a main bracket, legs and a load-bearing plate, and the main bracket is "L"-shaped, and two legs are welded to the bottom of the main bracket, a load-bearing plate is welded to the front end of the main bracket, and a motor is installed on the upper end of the load-bearing plate.

[0009] Preferably, the lifting mechanism includes a first linkage rod, a protrusion, a straight rod, a second linkage rod and an eccentric shaft, and the first linkage rod is connected to the output end of motor 1, a protrusion is provided at the bottom outside the first linkage rod, and the protrusion is connected to the straight rod through a ring at the bottom of the straight rod, the straight rod is hinged to the left side of the outside of the second linkage rod through the same structure, and an eccentric shaft is provided on the right side of the second linkage rod, and the eccentric shaft passes through the main bracket and is connected to the bottom of the driving rod.

[0010] Preferably, the driving rod is connected to the back of the operating panel through a connecting mechanism, and the connecting mechanism includes a mounting tube and a clamp, and the clamp is fixed to the outside of the mounting tube, and the clamp is connected to the back of the operating panel through a bolt, and the mounting tube can rotate outside the upper end of the driving rod, and a flip mechanism is also provided on the back of the operating panel, and the other end of the flip mechanism is fixed to the outside of the main bracket.

[0011] Preferably, the flipping mechanism includes a motor, a rotating rod, a sleeve, a movable rod, a slide groove 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 a sleeve is connected to the left side of the rotating rod, and a movable rod is provided through the inside of the sleeve, and the bottom of the movable rod is connected to the operating panel, square slide grooves are provided on both sides of the movable rod, and a limit block is provided inside the slide groove, and the limit block is welded inside the sleeve.

[0012] Preferably, the second motor is arranged at the upper end of the operating panel, and grooves at both ends are provided on the left side of the operating panel, and an adjustment mechanism is provided inside the groove, the adjustment mechanism includes a screw rod, a slider, a limit rod and a docking sleeve, and a slider is provided through the outside of the screw rod, and limit rods are provided through the inside of both sides of the slider, and the length of the limit rod is consistent with the length of the screw rod, the screw rod is located between the two limit rods, a docking sleeve is provided at the bottom of the slider, and the bottom of the docking sleeve corresponds to the position of the combination mechanism, the bottom of the output shaft of the second motor can drive the screw rod to rotate, and a linkage mechanism is also provided on the outside of the output shaft of the second motor.

[0013] Preferably, the linkage mechanism includes sprocket one, chain and sprocket two, and the chain is provided on the outside of sprocket one, and sprocket two is provided inside the other side of the chain, and sprocket one, chain and sprocket two are meshed with each other, a twisted rod is provided through the inside of sprocket two, and a protrusion is provided on the outside of the twisted rod, and the protrusion can move on the limit plate at the upper end of the horizontal plate, a disc is provided at the upper end of the twisted rod, and an extrusion plate is provided at the bottom of the twisted rod, and the extrusion plate and the positioning mechanism can jointly extrude the combined mechanism.

[0014] Preferably, the combined mechanism includes a base plate, a part fixture and a vertical axis, and multiple groups of part fixtures are provided on the upper end of the base plate, vertical axes are provided on both sides of the upper end of the base plate, and the vertical axes can be stuck into the inside of the docking sleeve, and multiple magnetic devices are provided inside the docking sleeve, the bottom of the base 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 to the 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 spacing between the two right-angle chucks is consistent with the size of the base plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the automatic feeding device for CNC machine tools;

[0016] 1. The rotation of motor 2 drives sprocket 1 to rotate, and sprocket 1 drives sprocket 2 to rotate through the chain. Sprocket 2 can make the twist rod move up and down according to the moving direction of the side protrusion on the side limit plate, so that the twist rod gradually descends and the extrusion plate at the bottom of the twist rod pushes the combination mechanism to gradually approach the two right-angle chucks. The right-angle chucks fit the two right angles of the bottom plate. During this process, the bottom plate is pushed to contact part of the right-angle chuck, causing the compression spring to expand and contract until the angle of the right-angle chuck is completely fitted with the bottom plate. At this time, the offset of the combination mechanism is corrected, which can make the vertical axis on the combination mechanism aligned with the docking sleeve. No manual observation is required, which is more convenient for docking. In addition, the extrusion plate and the right-angle chuck can clamp the combination mechanism from the side to ensure the stability of the combination mechanism during movement.

[0017] 2. By starting motor 1, motor 1 will drive the first linkage rod to rotate clockwise. A protrusion is provided at the bottom outer side of the first linkage rod, and the protrusion is sleeved on the bottom of the straight rod. The upper end of the straight rod is also installed at the left end of the outer side of the second linkage rod in the same way. 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 driving rod rotates to the lower end. At this time, starting the motor will drive the rotating rod to rotate, and the rotating rod will drive the sleeve to rotate. A movable rod is provided through the sleeve, and the bottom of the movable rod is connected to the operating plate. 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 slide groove, thereby pushing the operating plate to flip downward, and the operating plate can rotate around the mounting cylinder. At this time, it is convenient to place the combination mechanism. In the initial state, the bottom surface of the operating plate faces the side, which can make it more convenient for the staff to install the combination mechanism, facilitate the alignment of the combination mechanism, reduce the difficulty of work, and can be quickly aligned and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the feeding device of the present invention before use;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the combination mechanism and the positioning mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the feeding device of the present invention after use;

[0022] Figure 5 This is a schematic diagram of the front three-dimensional structure of the feeding device of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning mechanism and the adjustment mechanism of the present invention;

[0024] Figure 7 It is a schematic side sectional structure diagram of the turning mechanism of the present invention.

[0025] In the figure: 1. Support mechanism; 101. Main bracket; 102. Support leg; 103. Loading plate; 2. Motor 1; 3. Lifting mechanism; 301. First linkage rod; 302. Bump; 303. Straight rod; 304. Second linkage rod; 305. Eccentric shaft; 4. Driving rod; 5. Connecting mechanism; 501. Mounting cylinder; 502. Clamp; 6. Operation panel; 7. Turning mechanism; 701. Motor; 702. Rotating rod; 703. Sleeve; 704. Movable rod; 705. Slide; 706. Limit block; 8. Electric Machine 2; 9. Adjusting mechanism; 901. Screw rod; 902. Slider; 903. Limit rod; 904. Docking sleeve; 10. Horizontal plate; 11. Linkage mechanism; 1101. Sprocket 1; 1102. Chain; 1103. Sprocket 2; 12. Twist rod; 1201. Disc; 1202. Extrusion plate; 13. Combination mechanism; 1301. Bottom plate; 1302. Part fixture; 1303. Vertical axis; 14. Positioning mechanism; 1401. Electric telescopic rod; 1402. Right-angle chuck; 1403. Compression spring. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7 The present invention provides a technical solution: an automatic feeding device for a CNC machine tool, comprising a support mechanism 1 and a motor 2 8, a motor 1 2 is provided on the outside of the support mechanism 1, and a lifting mechanism 3 is provided on the back of the motor 1 2, and a driving rod 4 is provided on the left side of the lifting mechanism 3, a connecting mechanism 5 is provided on the left side of the driving rod 4, and an operating panel 6 is installed at the bottom of the connecting mechanism 5, and a flipping mechanism 7 is provided on the outside of the operating panel 6, an adjusting mechanism 9 is provided at the bottom of the motor 2 8, a linkage mechanism 11 is provided at the bottom of the motor 2 8, and a horizontal plate 10 is provided at the bottom of the linkage mechanism 11, and a twisted rod 12 is provided through the inside of the horizontal plate 10, a combination mechanism 13 is provided on the outside of the twisted rod 12, and a positioning mechanism 14 is provided on the other side of the combination mechanism 13.

[0028] The supporting mechanism 1 includes a main bracket 101, supporting legs 102 and a supporting plate 103. The main bracket 101 is "L"-shaped, and two supporting legs 102 are welded to the bottom of the main bracket 101. A supporting plate 103 is welded to the front end of the main bracket 101, and a motor 2 is installed on the upper end of the supporting plate 103 to ensure the stability of the feeding device. It can be independently supported next to the CNC machine tool.

[0029] The lifting mechanism 3 includes a first linkage rod 301, a protrusion 302, a straight rod 303, a second linkage rod 304 and an eccentric shaft 305, and the first linkage rod 301 is connected to the output end of the motor 2, a protrusion 302 is provided at the bottom outside the first linkage rod 301, and the protrusion 302 is connected to the straight rod 303 through the ring at the bottom of the straight rod 303, the straight rod 303 is hinged to the left side of the outside of the second linkage rod 304 through the same structure, and an eccentric shaft 305 is provided on the right side of the second linkage rod 304, and the eccentric shaft 305 passes through the main bracket 101 and is connected to the bottom of the driving rod 4 to facilitate loading and unloading.

[0030] The driving rod 4 is connected to the back of the operating panel 6 through a connecting mechanism 5. The connecting mechanism 5 includes a mounting tube 501 and a clamp 502. The clamp 502 is fixed to the outside of the mounting tube 501, and the clamp 502 is connected to the back of the operating panel 6 through a bolt. The mounting tube 501 can rotate on the outside of the upper end of the driving rod 4. A flipping mechanism 7 is also provided on the back of the operating panel 6, and the other end of the flipping mechanism 7 is fixed to the outside of the main bracket 101, so that the operating panel 6 can be flipped smoothly.

[0031] The flipping mechanism 7 includes a motor 701, a rotating rod 702, a sleeve 703, a movable rod 704, a slide 705 and a limit block 706, and the motor 701 is fixed to the outside of the main bracket 101, a rotating rod 702 is arranged on the left side of the motor 701, and the sleeve 703 is connected to the left side of the rotating rod 702, and a movable rod 704 is arranged through the inside of the sleeve 703, and the bottom of the movable rod 704 is connected to the operating panel 6, square slides 705 are arranged on both sides of the movable rod 704, and a limit block 706 is arranged inside the slide 705, and the limit block 706 is welded inside the sleeve 703, which facilitates the installation of the operating panel 6 and the combination mechanism 13.

[0032] Motor 2 8 is arranged at the upper end of the operating panel 6, and grooves at both ends are arranged on the left side of the operating panel 6, and an adjustment mechanism 9 is arranged inside the groove. The adjustment mechanism 9 includes a screw rod 901, a slider 902, a limit rod 903 and a docking sleeve 904, and a slider 902 is arranged on the outside of the screw rod 901, and limit rods 903 are arranged on 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, and a docking sleeve 904 is arranged at the bottom of the slider 902, and the bottom of the docking sleeve 904 corresponds to the position of the combination mechanism 13. The bottom of the output shaft of motor 2 8 can drive the screw rod 901 to rotate, and a linkage mechanism 11 is also arranged on the outside of the output shaft of motor 2 8, which can adjust the position of the docking sleeve 904.

[0033] The linkage mechanism 11 includes sprocket 1101, chain 1102 and sprocket 2 1103, and chain 1102 is arranged on the outside of sprocket 1101, and sprocket 2 1103 is arranged inside the other side of chain 1102, and sprocket 1101, chain 1102 and sprocket 2 1103 are meshed with each other, a twisted rod 12 is arranged through the inside of sprocket 2 1103, and a protrusion is arranged on the outside of the twisted rod 12, and the protrusion can move on the limit plate at the upper end of the horizontal plate 10, a disc 1201 is arranged on the upper end of the twisted rod 12, and an extrusion plate 1202 is arranged at the bottom of the twisted rod 12, and the extrusion plate 1202 and the positioning mechanism 14 can jointly squeeze the combination mechanism 13, so that the extrusion plate 1202 can move downward.

[0034] The combination mechanism 13 includes a base plate 1301, a part fixture 1302 and a vertical shaft 1303, and multiple groups of part fixtures 1302 are provided on the upper end of the base plate 1301, and vertical shafts 1303 are provided on both sides of the upper end of the base plate 1301, and the vertical shafts 1303 can be stuck into the inside of the docking sleeve 904, and multiple magnetic devices are provided inside the docking sleeve 904, the bottom of the base 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 clamp 1402 and a compression spring 1403, and the front end of the electric telescopic rod 1401 is connected to the right-angle clamp 1402 through a bearing, the right-angle clamp 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 clamps 1402, and the spacing between the two right-angle clamps 1402 is consistent with the size of the base plate 1301, which is convenient for clamping the combination mechanism 13 from the side.

[0035] Working principle: When using the automatic feeding device of the CNC machine tool, first place multiple parts in the part fixture 1302 to complete the installation work, then in the initial state, the left side of the base plate 1301 is placed against the extrusion plate 1202, and then the motor 2 8 is started. The motor 2 8 will drive the screw rod 901 with two sections of opposite threads to rotate, so that the slider 902 passing through the outside of the screw rod 901 moves toward each other under the action of the limit rod 903 passing through both sides, thereby driving the docking sleeve 904 to align with the vertical axis 1303. At the same time, the rotation of the motor 2 8 drives the sprocket 1101 to rotate, and the sprocket 1 1101 drives the sprocket 2 1103 to rotate through the chain 1102. The sprocket 2 1103 can allow the twist rod 12 to move up and down according to the moving direction of the side protrusion on the side limit plate. The movement causes the twist rod 12 to gradually descend, causing the extrusion plate 1202 at the bottom of the twist rod 12 to push the combination mechanism 13 gradually close to the two right-angle clamps 1402, and the right-angle clamps 1402 fit the two right angles of the bottom plate 1301. During this process, the bottom plate 1301 is pushed to contact a partial area of ​​the right-angle clamp 1402, causing the compression spring 1403 to expand and contract until the angle of the right-angle clamp 1402 and the bottom plate 1301 are completely fitted. At this time, the offset of the combination mechanism 13 is corrected, allowing the vertical axis 1303 on the combination mechanism 13 to be aligned with the docking sleeve 904, without manual observation, making docking more convenient, and the extrusion plate 1202 and the right-angle clamp 1402 can clamp the combination mechanism 13 from the side to ensure the stability of the combination mechanism 13 during movement. After the first linkage rod 301 is rotated, the second linkage rod 304 is rotated around the eccentric shaft 305 through the straight rod 303, thereby rotating the drive rod 4 to the lower end. At this time, the motor 701 is started, and the motor 701 drives the rotating rod 702 to rotate, and the rotating rod 702 drives the sleeve 904 to rotate. When the cylinder 703 rotates, a movable rod 704 is provided through the sleeve 703, and the bottom of the movable rod 704 is connected to the operating plate 6. At this time, the rotation of the sleeve 703 will drive the movable rod 704 to move downward according to the moving direction of the limit block 706 in the slide groove 705, thereby pushing the operating plate 6 to flip downward, and the operating plate 6 can rotate around the installation cylinder 501. At this time, it is convenient to place the combination mechanism 13. Starting the electric telescopic rod 1401 to extend can allow the right-angle chuck 1402 to drive the vertical shaft 1303 to disengage from the docking sleeve 904. The electric telescopic rod 1401 is a relatively mature technology on the existing market and will not be described in detail here. The docking sleeve 904 can loosen the vertical shaft 1303 through electromagnetic means. At this time, the motor 2 8 rotates in the opposite direction, and the extrusion plate 1202 is driven by the above operation.However, this time the movement is reversed, so that the extrusion plate 1202 no longer squeezes the bottom plate 1301, allowing the combined mechanism 13 to fall off and be placed in the designated position for CNC machining, completing the entire feeding process. The contents not described in detail in this manual belong to the prior art known to professionals in this field.

[0036] 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 scope of protection of the present invention.

Claims

1. An automatic feeding device for a CNC machine tool, comprising a support mechanism (1) and a second motor (8), characterized in that: The support mechanism (1) is provided with a motor (2) on the outside, and a lifting mechanism (3) is provided on the back of the motor (2), and a driving rod (4) is provided on the left side of the lifting mechanism (3), a connecting mechanism (5) is provided on the left side of the driving rod (4), and an operating panel (6) is installed at the bottom of the connecting mechanism (5), and a flipping mechanism (7) is provided on the outside of the operating panel (6), an adjusting mechanism (9) is provided at the bottom of the motor (8), a linkage mechanism (11) is provided at the bottom of the motor (8), and a horizontal plate (10) is provided at the bottom of the linkage mechanism (11), and a twisted rod (12) is provided inside the horizontal plate (10), a combination mechanism (13) is provided on the outside of the twisted rod (12), and a positioning mechanism (14) is provided on the other side of the combination mechanism (13); The second motor (8) is arranged at the upper end of the operating panel (6), and the left side of the operating panel (6) is provided with grooves at both ends, 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 docking sleeve (904), and the outer side of the screw rod (901) is provided with a slider (902), and the inside of the slider (902) is provided with limit rods (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 between the two limit rods (903), and the bottom of the slider (902) is provided with a docking sleeve (904), and the bottom of the docking sleeve (904) corresponds to the position of the combination mechanism (13), the bottom of the output shaft of the second motor (8) drives the screw rod (901) to rotate, and a linkage mechanism (11) is also provided outside the output shaft of the second motor (8); The combination mechanism (13) includes a base plate (1301), a parts fixture (1302) and a vertical shaft (1303), and a plurality of parts fixtures (1302) are provided on the upper end of the base plate (1301), vertical shafts (1303) are provided on both sides of the upper end of the base plate (1301), and the vertical shafts (1303) are inserted into the interior of the docking sleeve (904), and a plurality of magnetic devices are provided inside the docking sleeve (904), and the bottom of the base 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 clamp (1402) and a compression spring (1403), and the front end of the electric telescopic rod (1401) is connected to the right-angle clamp (1402) through a bearing, the right-angle clamp (1402) is composed of a right angle and an extension plate, and the compression spring (1403) is connected between the extension plates of the two right-angle clamps (1402), and the spacing between the two right-angle clamps (1402) is consistent with the size of the base plate (1301).

2. The automatic feeding device for CNC machine tools according to claim 1, characterized in that: The support mechanism (1) comprises a main support (101), legs (102) and a bearing plate (103), wherein the main support (101) is L-shaped, and two legs (102) are welded to the bottom of the main support (101), a bearing plate (103) is welded to the front end of the main support (101), and a motor (2) is mounted on the upper end of the bearing plate (103).

3. The automatic feeding device for CNC machine tools according to claim 2, characterized in that: The lifting mechanism (3) includes a first linkage rod (301), a protrusion (302), a straight rod (303), a second linkage rod (304) and an eccentric shaft (305), and the first linkage rod (301) is connected to the output end of the motor (2), a protrusion (302) is provided at the bottom of the outer side of the first linkage rod (301), and the protrusion (302) is connected to the straight rod (303) through a ring at the bottom of the straight rod (303), and the straight rod (303) is hinged to the left side of the outer side of the second linkage rod (304) through the same structure, and an eccentric shaft (305) is provided on the right side of the second linkage rod (304), and the eccentric shaft (305) passes through the main bracket (101) and is connected to the bottom of the driving rod (4).

4. The automatic feeding device for CNC machine tools according to claim 2, characterized in that: The driving rod (4) is connected to the back of the operating panel (6) via a connecting mechanism (5). The connecting mechanism (5) comprises a mounting tube (501) and a clamping hoop (502). The clamping hoop (502) is fixed to the outside of the mounting tube (501), and the clamping hoop (502) is connected to the back of the operating panel (6) via a bolt. The mounting tube (501) rotates outside the upper end of the driving rod (4). A flipping mechanism (7) is further provided on the back of the operating panel (6), and the other end of the flipping mechanism (7) is fixed to the outside of the main bracket (101).

5. The automatic feeding device for CNC machine tools according to claim 1, characterized in that: The flip mechanism (7) comprises a motor (701), a rotating rod (702), a sleeve (703), a movable rod (704), a slide groove (705) and a limit block (706), wherein the motor (701) is fixed on the outside of the main bracket (101), a rotating rod (702) is provided on the left side of the motor (701), and the sleeve (703) is connected to the left side of the rotating rod (702), and a movable rod (704) is provided inside the sleeve (703), and the bottom of the movable rod (704) is connected to the operating panel (6), square slide grooves (705) are provided on both sides of the movable rod (704), and a limit block (706) is provided inside the slide groove (705), and the limit block (706) is welded inside the sleeve (703).

6. The automatic feeding device for CNC machine tools according to claim 1, characterized in that: The linkage mechanism (11) includes a sprocket 1 (1101), a chain (1102) and a sprocket 2 (1103), and the chain (1102) is arranged on the outside of the sprocket 1 (1101), and the sprocket 2 (1103) is arranged inside the other side of the chain (1102), and the sprocket 1 (1101), the chain (1102) and the sprocket 2 (1103) are meshed with each other, a twisted rod (12) is arranged inside the sprocket 2 (1103), and a protrusion is arranged on the outside of the twisted rod (12), and the protrusion moves on the limit plate at the upper end of the transverse plate (10), a disc (1201) is arranged at the upper end of the twisted rod (12), and an extrusion plate (1202) is arranged at the bottom of the twisted rod (12), and the extrusion plate (1202) and the positioning mechanism (14) jointly extrude the combination mechanism (13).

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