Numerical control grinding machine with automatic locking function

Abstract

The invention discloses a numerical control grinding machine with an automatic locking function, and relates to the technical field of numerical control grinding machines, the numerical control grinding machine comprises a main body, the main body is rotatably connected with a rotary seat, the rotary seat is provided with a manipulator for grabbing materials, and the main body is provided with a non-return locking mechanism. The non-return assembly is used for preventing the rotating seat from rotating reversely, the elastic assembly is used for forcing the mechanical arm to rotate to the highest point, the non-return assembly prevents the mechanical arm from falling in the process that the mechanical arm rotates to the highest point from the lowest point, and the elastic assembly is used for forcing the mechanical arm to rotate to the lowest point from the highest point. And the elastic assembly forces the manipulator to ascend so as to be matched with the non-return assembly to lock the position of the rotary seat. According to the numerical control grinding machine with the automatic locking function, in the process that the rotating base drives the mechanical arm to move from the lowest point to the highest point, if the driving source of the rotating base is powered off or powered off, the position of the rotating base can be locked through the non-return assembly.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled grinding machines, and in particular to a numerically controlled grinding machine with an automatic locking function. Background Art

[0002] A grinder is a machine tool used for metal processing, usually used to grind workpieces to obtain high precision and good surface finish. Existing grinder equipment is generally equipped with an automated loading and unloading mechanism, such as a manipulator structure, to move the material to the grinder for grinding through the manipulator.

[0003] For example, the patent document with the authorization announcement number CN221159883U and the authorization announcement date June 18, 2024, and the name of the patent document is "An automatic loading and unloading system for a five-axis CNC grinding machine", which includes a manipulator fixing plate, a detachable swivel seat is installed in front of the manipulator fixing plate, a swivel connecting plate is installed on the top of the swivel seat, and a swivel bracket is connected to the side wall of the swivel connecting plate. The swivel bracket is located at the bottom of the swivel seat, and a swivel cylinder assembly is installed at the bottom of the swivel bracket. The swivel cylinder assembly includes a swivel cylinder, and a rotatable connecting disk is installed at the bottom of the swivel cylinder. The swivel cylinder can drive the connecting disk to rotate and drive the rotating block to rotate synchronously when compressed air is passed into the swivel cylinder.

[0004] In the prior art, the manipulator structure is generally fixed on a swivel seat, and the cylinder structure drives the swivel seat to rotate to drive the manipulator structure to move. Obviously, the manipulator structure has a certain weight, and it has a force that forces the swivel seat to rotate downward. When the cylinder structure encounters an unexpected power outage or gas outage, the swivel seat is unsupported and easily swings downward, which may cause the manipulator structure to collide with other parts and cause damage. Summary of the invention

[0005] The purpose of the present invention is to provide a numerically controlled grinding machine with an automatic locking function to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A CNC grinding machine with an automatic locking function comprises a main body, a swivel seat is rotatably connected to the main body, a manipulator for grabbing materials is arranged on the swivel seat, and the main body is provided with:

[0008] The non-return locking mechanism includes a non-return component for preventing the swivel seat from reversing and an elastic component for forcing the manipulator to rotate to the highest point. During the process of the manipulator rotating from the lowest point to the highest point, the non-return component prevents the manipulator from falling. During the process of the manipulator rotating from the highest point to the lowest point, the elastic component forces the manipulator to rise to cooperate with the non-return component to lock the position of the swivel seat.

[0009] The above-mentioned CNC grinding machine with automatic locking function, the non-return assembly includes an arc plate fixed on the main body, the arc plate is provided with a first ratchet and a second ratchet, a slider is slidably connected to the outer wall of the rotating seat, and the first pawl and the second pawl are rotatably connected to the slider.

[0010] In the above-mentioned CNC grinding machine with automatic locking function, the outer wall of the rotary seat is configured with a slide groove, and the slider is slidably connected in the slide groove.

[0011] In the above-mentioned CNC grinding machine with automatic locking function, when the slider is at one end of the slide slot, the first pawl is adapted to the first ratchet, and the second pawl is separated from the second ratchet; when the slider is at the other end of the slide slot, the second pawl is adapted to the second ratchet, and the first pawl is separated from the first ratchet.

[0012] In the above-mentioned CNC grinding machine with automatic locking function, the first pawl and the second pawl are coaxially arranged and a torsion spring is arranged therebetween, and the torsion spring is used to force the first pawl and the second pawl to approach each other.

[0013] In the above-mentioned CNC grinding machine with automatic locking function, the outer wall of the rotary seat is provided with a first elastic member, and the first elastic member is used to force the sliding block to be located at one end of the sliding groove.

[0014] The above-mentioned CNC grinding machine with automatic locking function has a first wedge block and a second wedge block fixed on the main body. When the rotary seat drives the manipulator to rotate to the lowest point, the slider contacts the first wedge block to force the slider to slide to one end of the slide groove; when the rotary seat drives the manipulator to rotate to the highest point, the slider contacts the second wedge block to force the slider to slide to the other end of the slide groove.

[0015] In the above-mentioned CNC grinding machine with automatic locking function, the elastic component includes a revolving groove constructed on the main body, a resistance block is slidably connected in the revolving groove, and a second elastic member for forcing the resistance block to rotate is arranged in the revolving groove.

[0016] In the above-mentioned CNC grinding machine with automatic locking function, an extension portion is constructed on the slider, and when the slider moves to the other end of the slide slot, the extension portion moves into the rotary slot and is resisted by the resistance block.

[0017] In the above-mentioned CNC grinding machine with automatic locking function, the inner wall of the rotary groove is structured with a protrusion, the extension part is located on one side of the protrusion when it moves to the rotary groove, and abuts against the abutment block when the extension part passes over the protrusion.

[0018] In the above technical scheme, the present invention provides a CNC grinding machine with automatic locking function. In the process of the swivel seat driving the manipulator to move from the lowest point to the highest point, if the driving source of the swivel seat is out of air or power, the position of the swivel seat can be locked by the non-return assembly and the gravity of the manipulator; in the process of the swivel seat driving the manipulator to move from the highest point to the lowest point, if the driving source of the swivel seat is out of air or power, the position of the swivel seat can be locked by the non-return assembly and the elastic force assembly, so as to avoid the situation of collision with the machine when the manipulator loses support and swings down. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a manipulator provided in yet another embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a curved plate structure provided in yet another embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a slider structure provided in yet another embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the structure of an extension portion provided in yet another embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a first elastic member provided in yet another embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the rotary trough structure provided by another embodiment of the present invention;

[0027] Figure 8 A schematic diagram of the structure of a connecting plate provided in another embodiment of the present invention;

[0028] Fig. 9 A further structural schematic diagram of a connecting plate provided in yet another embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Main body; 2. Rotating seat; 3. Manipulator; 4. Rotating cylinder; 5. Arc plate; 6. First ratchet; 7. Second ratchet; 8. Sliding block; 9. First pawl; 10. Second pawl; 11. Slide; 12. First elastic member; 13. First wedge block; 14. Second wedge block; 15. Rotating groove; 16. Interference block; 17. Second elastic member; 18. Extension; 19. Protrusion; 20. Movable block; 21. Connecting plate; 22. Arc groove; 23. Connecting column. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1-9 An embodiment of the present invention provides a CNC grinding machine with an automatic locking function, comprising a main body 1, a swivel seat 2 is rotatably connected to the main body 1, a manipulator 3 for grabbing materials is arranged on the swivel seat 2, and a non-return locking mechanism is arranged on the main body 1, which comprises a non-return component for preventing the swivel seat 2 from reversing and an elastic component for forcing the manipulator 3 to rotate to the highest point. In the process of the manipulator 3 rotating from the lowest point to the highest point, the non-return component prevents the manipulator 3 from falling, and in the process of the manipulator 3 rotating from the highest point to the lowest point, the elastic component forces the manipulator 3 to rise to cooperate with the non-return component to lock the position of the swivel seat 2.

[0033] Specifically, a grinding mechanism, a rotating seat 2 and a manipulator 3 are generally provided on a grinding machine. The rotating seat 2 can drive the manipulator 3 to rotate to switch the position of the manipulator 3, thereby picking up materials or moving the materials to the grinding mechanism for grinding operations. In this embodiment, the rotating seat 2 is rotatably connected to the main body 1 to drive the manipulator 3 to move through the rotating seat 2 (the manipulator 3 can use a combination of a cylinder and a clamp to grab the material). A rotating cylinder 4 can be provided on the main body 1 to drive the rotating seat 2 to reciprocate within the range of 0-180 degrees. The positions of 0 degrees and 180 degrees are respectively the lowest and highest points of the position of the manipulator 3, so that the manipulator 3 can pick up materials at the lowest and highest points of the position or move the materials to the grinding mechanism for grinding operations. The innovation of the embodiment of the present invention is that a non-return locking mechanism is arranged on the main body 1, and the non-return locking mechanism includes a non-return component and an elastic component. The elastic component can select a spring structure in the prior art, which can force the swivel seat 2 to rotate to one side to drive the manipulator 3 to move to the highest point during operation; the non-return component can select a ratchet pawl structure in the prior art, which can be provided with two groups. In the process that the rotating cylinder 4 drives the swivel seat 2 to rotate to drive the manipulator 3 to move from the lowest point to the highest point, one group of ratchet pawl structures operates to prevent the swivel seat 2 from rotating. During this process, the elastic component does not operate. If the rotating cylinder 4 is suddenly cut off from air, the swivel seat 2 loses the supporting force of the rotating cylinder 4, so that the swivel seat 2 has a tendency to swing downward under the action of the gravity of the manipulator 3. At this time, a group of ratchet pawl mechanisms can prevent the swivel seat 2 from swinging downward, thereby locking the position of the swivel seat 2 by the non-return component and the gravity of the manipulator 3; in the process that the rotating cylinder 4 drives the swivel seat 2 to rotate to drive the manipulator 3 to move from the highest point to the lowest point, another group of ratchet pawl structures The claw structure operates to prevent the swivel seat 2 from reversing, and at the same time the elastic component forces the swivel seat 2 to tend to drive the manipulator 3 to move to the highest point. During this process, the rotating cylinder 4 needs to overcome the elastic force of the elastic component on the swivel seat 2. If the rotating cylinder 4 is suddenly cut off, the swivel seat 2 loses the supporting force of the rotating cylinder 4, so that the swivel seat 2 has a tendency to rotate under the action of the elastic component (the force of the elastic component on the swivel seat 2 is greater than the force of the manipulator 3 on the swivel seat 2), and the other set of ratchet and pawl structures can prevent the swivel seat 2 from rotating. In summary, in the process of the rotary cylinder 4 driving the rotary seat 2 to rotate so as to drive the manipulator 3 to move back and forth between the lowest point and the highest point, if the driving source of the rotary seat 2 (such as the rotary cylinder 4) is out of air or power, the position of the rotary seat 2 and the manipulator 3 can be limited in time through the non-return locking mechanism, thereby preventing the manipulator 3 from swinging downward under the action of gravity and avoiding damage caused by collision with other structures during the swinging process.

[0034] In another embodiment provided by the present invention, the non-return assembly includes an arc plate 5 fixed on the main body 1, the arc plate 5 is provided with a first ratchet 6 and a second ratchet 7, a slider 8 is slidably connected to the outer wall of the rotating seat 2, and the slider 8 is rotatably connected to the first pawl 9 and the second pawl 10. Specifically, the inner diameter of the arc plate 5 is larger than the outer diameter of the rotating seat 2 and the two are coaxially arranged, the first ratchet 6 and the second ratchet 7 are both located on the inner side of the arc plate 5, and the first ratchet 6 is located on the side of the second ratchet 7 away from the main body 1 (the first ratchet 6 and the second ratchet 7 are both part of a complete ratchet); the outer wall of the rotating seat 2 is constructed with a slide groove 11, and the slider 8 is slidably connected in the slide groove 11; the slide groove 11 is arranged along the height direction of the arc plate 5, so that the slider 8 can drive the first pawl 9 and the second pawl 10 to slide on the outer wall of the rotating seat 2; when the slider 8 is in the slide groove 1 1 (the end of the slide groove 11 away from the main body 1), the first pawl 9 is adapted to the first ratchet 6, and the second pawl 10 is separated from the second ratchet 7 (the second pawl 10 is located between the first ratchet 6 and the second ratchet 7 and abuts against the inner wall of the arc plate 5); when the slider 8 is at the other end of the slide groove 11 (the end of the slide groove 11 close to the main body 1), the second pawl 10 is adapted to the second ratchet 7, and the first pawl 9 is separated from the first ratchet 6 (the first pawl 9 is located between the first ratchet 6 and the second ratchet 7 and abuts against the inner wall of the arc plate 5).

[0035] In this embodiment, a linear driving structure can be provided on the rotating seat 2 to drive the slider 8 to move in the slide groove 11; two torsion springs can be provided on the slider 8 to respectively force the first pawl 9 and the second pawl 10 to approach the arc plate 5; when the rotating seat 2 drives the manipulator 3 to move from the lowest point to the highest point, the slider 8 is moved to the end of the slide groove 11 away from the main body 1. At this time, the first pawl 9 and the first ratchet 6 are adapted (the second pawl 10 abuts against the inner wall of the arc plate 5 under the action of the corresponding torsion spring). When the rotating seat 2 drives the manipulator 3 to move to the highest point, the first pawl 9 intermittently abuts against the outer walls of each tooth of the first pawl 9 under the action of a torsion spring. When the driving source of the rotating seat 2 is cut off or powered off, the gravity of the manipulator 3 forces the rotating seat 2 to rotate to make the manipulator 3 fall. At this time, the first pawl 9 can be clamped on the first ratchet 6 under the action of a torsion spring. When the rotary seat 2 drives the manipulator 3 to move from the highest point to the lowest point, the slider 8 is moved to the end of the slide groove 11 close to the main body 1. At this time, the second pawl 10 and the second ratchet 7 are adapted and the elastic component is running. When the rotary seat 2 drives the manipulator 3 to move downward, the second pawl 10 rotates relative to the second ratchet 7. During the process, the elastic component applies elastic force to the rotary seat 2 to form resistance to the downward movement of the manipulator 3. When the driving source of the rotary seat 2 is cut off or the power is cut off, the gravity of the manipulator 3 forces the manipulator 3 to continue to move to the lowest point, and the elastic component can overcome the gravity of the manipulator 3 and force the rotary seat 2 to rotate to drive the manipulator 3 to move toward the highest point, so that the second pawl 10 is stuck between the two adjacent teeth on the second ratchet 7, thereby preventing the manipulator 3 from swinging under the action of gravity. The advantage of such a configuration is that by adjusting the position of the slider 8, the first pawl 9 and the second pawl 10 can be adapted to operate, so that when the driving source of the swivel seat 2 is cut off from air or power, the position of the swivel seat 2 can be locked by using the check assembly and the elastic assembly to prevent the manipulator 3 from losing control and swinging downward under the action of gravity.

[0036] As an alternative to setting two torsion springs on the above-mentioned slider 8 to respectively force the first pawl 9 and the second pawl 10 to approach the arc plate 5, preferably, the first pawl 9 and the second pawl 10 are coaxially arranged and a torsion spring is arranged between them, and the torsion spring is used to force the first pawl 9 and the second pawl 10 to approach each other. Specifically, in this embodiment, only one torsion spring is required to be arranged on the slider 8, and the first pawl 9 and the second pawl 10 are forced to approach each other by the torsion spring, wherein the first pawl 9 is attached to the first ratchet wheel 6 or the outer wall of the arc plate 5 under the action of the torsion spring, and the second pawl 10 is attached to the second ratchet wheel 7 or the outer wall of the arc plate 5 under the action of the torsion spring, so that the first pawl 9 and the second pawl 10 can be adapted to operate during the reciprocating rotation of the swivel seat 2.

[0037] Furthermore, the outer wall of the swivel seat 2 is provided with a first elastic member 12, and the first elastic member 12 is used to force the slider 8 to be at one end of the slide slot 11. The main body 1 is fixed with a first wedge block 13 and a second wedge block 14. When the swivel seat 2 drives the manipulator 3 to rotate to the lowest point, the slider 8 contacts the first wedge block 13 to force the slider 8 to slide to one end of the slide slot 11; when the swivel seat 2 drives the manipulator 3 to rotate to the highest point, the slider 8 contacts the second wedge block 14 to force the slider 8 to slide to the other end of the slide slot 11.Specifically, the first elastic member 12 can adopt a spring structure in the prior art, one end of which is fixed (or hinged) on the outer wall of the rotating seat 2, and the other end is fixed (or hinged) on the slider 8. The first elastic member 12 is in a compressed state, which can force the slider 8 to move away from the connection point between the first elastic member 12 and the rotating seat 2; when the slider 8 is in the middle position of the slide groove 11, the first elastic member 12 is perpendicular to the outer wall of the rotating seat 2 and the side wall of the slider 8. At this time, the direction of the force of the first elastic member 12 on the slider 8 is perpendicular to the sliding direction of the slider 8. The first elastic member 12 cannot force the slider 8 to slide along the slide groove 11 (the influence of the slider 8's own gravity is not considered at this time). When the slider 8 deviates from the center position of the slide groove 11, the elastic force of the first elastic member 12 can force the slider 8 to move away from the connection point between the first elastic member 12 and the rotary seat 2, thereby forcing the slider 8 to be at one end of the slide groove 11; the first wedge block 13 and the second wedge block 14 are respectively located at the two ends of the rotation stroke of the slider 8. When the slider 8 rotates to the end of the stroke with the rotary seat 2, the slider 8 can be forced to slide in the slide groove 11 through the first wedge block 13 or the wedge block; the first wedge block 13 is closer to the main body 1 (relative to the second wedge block 14). When the first wedge block 13 and the slider 8 conflict with each other, the first wedge block 13 can force the slider 8 to overcome the first elastic member 12. The first wedge block 13 and the first elastic member 12 force the slider 8 to move to the end away from the main body 1, thereby driving the first pawl 9 and the second pawl 10 to move away from the main body 1 synchronously, so that the second pawl 10 moves between the first ratchet 6 and the second ratchet 7 and contacts the inner wall of the arc plate 5, and at the same time, the first pawl 9 moves to a position adapted to the first ratchet 6 (at this time, the first pawl 9 is at the end of the first ratchet 6, so that the first pawl 9 can smoothly transition from the inner wall of the arc plate 5 to the outer wall of the first ratchet 6); when the second wedge block 14 contacts the slider 8, the first pawl 9 and the second ratchet 7 are moved away from the main body 1. The second wedge block 14 can force the slider 8 to overcome the elastic force of the first elastic member 12 and approach the main body 1 until the slider 8 passes the middle position of the slide groove 11, and the second wedge block 14 and the first elastic member 12 jointly force the slider 8 to move to one end close to the main body 1, thereby driving the first pawl 9 and the second pawl 10 to approach the main body 1, so that the first pawl 9 moves to between the first ratchet 6 and the second ratchet 7 and abuts against the inner wall of the arc plate 5, and at the same time, the second pawl 10 moves to a position adapted to the second ratchet 7 (at this time, the second pawl 10 is at the end of the second ratchet 7, so that the second pawl 10 can smoothly transition from the inner wall of the arc plate 5 to the outer wall of the second ratchet 7).

[0038] The advantage of such an arrangement is that in the process of the swivel seat 2 driving the mechanical claw to move from the highest point to the lowest point, the second pawl 10 and the second ratchet 7 operate adaptively until the mechanical claw is about to move to the lowest point, the slider 8 on the swivel seat 2 and the first wedge block 13 on the main body 1 conflict with each other, forcing the slider 8 to move to the end of the slide groove 11 away from the main body 1, thereby causing the first pawl 9 and the second pawl 10 to switch positions, so that the first pawl 9 and the first ratchet 6 operate adaptively, until the mechanical claw is reset to the highest point, the second wedge block 14 and the slider 8 conflict with each other to force the slider 8 to move to the end of the slide groove 11 close to the main body 1, thereby switching the positions of the first pawl 9 and the second pawl 10 again, and then in the process of the rotating cylinder 4 driving the swivel seat 2 and the manipulator 3 to rotate, the non-return assembly operates adaptively to lock the swivel seat 2 when the driving source of the swivel seat 2 is powered off or the air is cut off.

[0039] In another embodiment provided by the present invention, as an alternative to the above-mentioned elastic component directly using a spring structure, preferably, the elastic component includes a revolving groove 15 constructed on the main body 1, and a resistance block 16 is slidably connected in the revolving groove 15, and a second elastic member 17 for forcing the resistance block 16 to rotate is provided in the revolving groove 15. An extension portion 18 is constructed on the slider 8, and when the slider 8 moves to the other end of the slide groove 11 (one end close to the main body 1), the extension portion 18 moves into the revolving groove 15 and is resisted by the resistance block 16. The inner wall of the revolving groove 15 is constructed with a protrusion 19, and when the extension portion 18 moves to the revolving groove 15, it is on the side of the protrusion 19, and when the extension portion 18 passes over the protrusion 19, it abuts against the resistance block 16. Specifically, the rotary groove 15 is constructed in an arc shape and is located between the rotary seat 2 and the arc plate 5. The second elastic member 17 can use a spring structure in the prior art, one end of which is fixed to the inner wall of the rotary groove 15, and the other end is fixed to the abutment block 16, so that the abutment block 16 is forced to move to the side away from the second elastic member 17 through the second elastic member 17; the extension portion 18 is located on the side of the slider 8 close to the main body 1, and the first pawl 9 and the second pawl 10 are both rotatably connected to the extension portion 18. When the rotary seat 2 drives the manipulator 3 to move to the highest point, the slider 8 switches To the end of the chute 11 close to the main body 1, at this time, the extension 18 approaches the main body 1 together with the slider 8 and is embedded in the rotary groove 15; the sum of the widths of the protrusion 19 and the extension 18 is equal to the width of the rotary groove 15. Under the elastic force of the second elastic member 17, the abutment block 16 moves away from the second elastic member 17 and abuts against the protrusion 19. Then, when the slider 8 switches to the end of the chute 11 close to the main body 1, it drives the extension 18 to be embedded in the rotary groove 15. At this time, the extension 18 is located on one side of the protrusion 19 and does not abut against the abutment block 16 (that is, there is a protrusion in the rotary groove 15). A certain space allows the extension 18 to be embedded in the rotary groove 15 with the slider 8), until the rotary seat 2 drives the manipulator 3 to move downward from the highest point, the slider 8 and the extension 18 move with the rotary seat 2, so that the extension 18 passes over the protrusion 19 and abuts against the abutment block 16, so that when the manipulator 3 moves to the lowest point, the second elastic member 17 and the abutment block 16 apply resistance to the slider 8 and the rotary seat 2. During this process, if the driving source of the rotary seat 2 is out of gas or power, the second elastic member 17 and the abutment block 16 can force the extension 18 to move downward from the highest point. The extension portion 18 and the slider 8 move in opposite directions, thereby forcing the manipulator 3 to move to the highest point, thereby cooperating with the non-return assembly to lock the position of the swivel seat 2 and the manipulator 3; when the swivel seat 2 drives the manipulator 3 to move to the lowest point, the slider 8 switches to the end of the slider 8 away from the main body 1, so as to drive the extension portion 18 to move out of the swivel groove 15, so that the contact block 16 loses the contact with the extension portion 18, thereby forcing the contact block 16 to contact with the protrusion 19 again under the action of the second elastic member 17, so that the next time the slider 8 approaches the main body 1, it will contact with the extension portion 18 again.

[0040] The advantage of such a configuration is that, by providing the protrusion 19, the position of the abutment block 16 can be restricted, so that when the slider 8 switches to the end of the slide groove 11 close to the main body 1, the extension portion 18 can move into the rotary groove 15, and in the process of the manipulator 3 moving from the highest point to the lowest point, the second elastic member 17 and the abutment block 16 can apply resistance to the extension portion 18, so as to cooperate with the check assembly to lock the position of the swivel seat 2 when the driving source of the swivel seat 2 is out of air or power; until the slider 8 switches to the end of the slide groove 11 away from the main body 1, the extension portion 18 moves out of the rotary groove 15, and the abutment block 16 is reset to the position abutting against the protrusion 19, thereby adapting to the reciprocating rotation of the swivel seat 2.

[0041] In another embodiment provided by the present invention, as an alternative solution for fixing one end of the above-mentioned second elastic member 17 on the inner wall of the rotating groove 15, further, the rotating groove 15 is constructed in a spiral shape, and one end of the rotating groove 15 with a protrusion 19 is farther away from the rotating seat 2 than the other end, and a movable block 20 is slidably connected in the rotating groove 15, and the two ends of the second elastic member 17 are respectively fixed on the movable block 20 and the resistance block 16, a connecting plate 21 is fixed on the outer wall of the rotating seat 2, and an arc groove 22 is constructed on the connecting plate 21, and a connecting column 23 is constructed on the movable block 20, and the connecting column 23 is slidably set in the arc groove 22. Specifically, in the above embodiment, the resistance block 16 is squeezed by the extension portion 18 to force the second elastic member 17 to deform, wherein the elastic deformation of the second elastic member 17 is relatively large. In this embodiment, one end of the second elastic member 17 is fixed on the movable block 20, and the other end is fixed on the resistance block 16. The sum of the widths of the extension portion 18 and the protrusion 19 is smaller than the width of the rotary groove 15, so that the extension portion 18 has a certain activity space in the rotary groove 15 (the moving path of the extension portion 18 is different from the path of the rotary groove 15, and for this reason, the extension portion 18 needs to be reduced so that it can rotate 180 degrees in the rotary groove 15). At the same time, the widths of the resistance block 16 and the movable block 20 are slightly smaller than the width of the rotary groove 15, so that the extension portion 18, the resistance block 16 and the movable block 20 can all move in the spiral rotary groove 15; when the rotary seat 2 drives the manipulator 3 to move to the highest point, the extension portion 18 is embedded in the rotary groove 15, and the position of the movable block 20 at this time is as shown in FIG. Figure 8 As shown, the rotary seat 2 then drives the manipulator 3 to move from the highest point to the lowest point, that is, Figure 8 The middle extension portion 18 rotates clockwise to abut against the abutment block 16, and the swivel seat 2 drives the connecting plate 21 to rotate clockwise, so as to force the connecting column 23 to move through the inner wall of the arc groove 22, thereby driving the movable block 20 to rotate clockwise in the swivel groove 15. During this process, the displacement of the abutment block 16 is greater than the displacement of the movable block 20, so that the manipulator 3 can squeeze the second elastic member 17 through the extension portion 18 during the process of moving to the lowest point, until the swivel seat 2 rotates 180 degrees to Fig. 9 When in the position shown, the slider 8 switches to the end of the slide groove 11 away from the main body 1, and the extension part 18 is separated from the resistance block 16, so that the resistance block 16 is reset along the rotating groove 15 under the action of the second elastic member 17, and then the rotating seat 2 drives the manipulator 3 to move to the highest point to drive the movable block 20 to reset. Such reciprocating movement can adapt to the reciprocating rotation stroke of the manipulator 3. Compared with the above embodiment, during the movement of the manipulator 3 from the highest point to the lowest point, the second elastic member 17 is squeezed and the deformation is relatively low, and the work done by the driving source of the rotating seat 2 is reduced, thereby reducing energy waste while applying resistance to the rotating seat 2, and is more suitable for the operation of the non-return assembly.

[0042] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CNC grinding machine with an automatic locking function, comprising a main body, a rotary seat rotatably connected to the main body, a manipulator for grabbing materials disposed on the rotary seat, characterized in that: The main body is provided with: The non-return locking mechanism includes a non-return component for preventing the swivel seat from reversing and an elastic component for forcing the manipulator to rotate to the highest point. During the process of the manipulator rotating from the lowest point to the highest point, the non-return component prevents the manipulator from falling. During the process of the manipulator rotating from the highest point to the lowest point, the elastic component forces the manipulator to rise to cooperate with the non-return component to lock the position of the swivel seat.

2. A CNC grinding machine with automatic locking function according to claim 1, characterized in that: The non-return assembly comprises an arc-shaped plate fixed on the main body, a first ratchet and a second ratchet are arranged on the arc-shaped plate, a sliding block is slidably connected to the outer wall of the swivel seat, and a first pawl and a second pawl are rotatably connected to the sliding block.

3. A CNC grinding machine with automatic locking function according to claim 2, characterized in that: The outer wall of the swivel seat is configured with a slide groove, and the sliding block is slidably connected in the slide groove.

4. A CNC grinding machine with automatic locking function according to claim 3, characterized in that: When the slider is at one end of the slide slot, the first pawl is matched with the first ratchet and the second pawl is separated from the second ratchet; when the slider is at the other end of the slide slot, the second pawl is matched with the second ratchet and the first pawl is separated from the first ratchet.

5. The CNC grinding machine with automatic locking function according to claim 4, characterized in that: The first pawl and the second pawl are coaxially arranged with a torsion spring arranged therebetween, and the torsion spring is used to force the first pawl and the second pawl to approach each other.

6. The CNC grinding machine with automatic locking function according to claim 4, characterized in that: The outer wall of the swivel seat is provided with a first elastic member, and the first elastic member is used to force the sliding block to be located at one end of the sliding groove.

7. A CNC grinding machine with automatic locking function according to claim 6, characterized in that: A first wedge block and a second wedge block are fixed on the main body. When the swivel seat drives the manipulator to rotate to the lowest point, the slider contacts the first wedge block to force the slider to slide to one end of the slide groove; when the swivel seat drives the manipulator to rotate to the highest point, the slider contacts the second wedge block to force the slider to slide to the other end of the slide groove.

8. The CNC grinding machine with automatic locking function according to claim 7, characterized in that: The elastic component comprises a revolving groove constructed on the main body, a resisting block is slidably connected in the revolving groove, and a second elastic member for forcing the resisting block to rotate is arranged in the revolving groove.

9. The CNC grinding machine with automatic locking function according to claim 8, characterized in that: An extension portion is configured on the slider, and when the slider moves to the other end of the slide slot, the extension portion moves into the rotary slot and is resisted by the resisting block.

10. The CNC grinding machine with automatic locking function according to claim 9, characterized in that: The inner wall of the rotary groove is configured with a protrusion, and when the extension moves to the rotary groove, it is located at one side of the protrusion, and when the extension passes over the protrusion, it abuts against the abutment block.

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