Numerical control grinding machine with automatic locking function

Abstract

The application discloses a numerical control grinding machine with automatic locking function and relates to the technical field of numerical control grinding machines.The numerical control grinding machine comprises a main body, a rotary seat rotatably connected to the main body, a mechanical hand provided on the rotary seat and used for grabbing materials, and a check locking mechanism provided on the main body and comprising a check assembly used for preventing the rotary seat from reversing and an elastic assembly used for forcing the mechanical hand to rotate to the highest point.In the process that the mechanical hand rotates from the lowest point to the highest point, the check assembly prevents the mechanical hand from falling down;in the process that the mechanical hand rotates from the highest point to the lowest point, the elastic assembly forces the mechanical hand to rise up so as to lock the position of the rotary seat together with the check assembly.The numerical control grinding machine with automatic locking function can lock the position of the rotary seat through the check assembly if the driving source of the rotary seat is in the condition of air cut-off or power cut-off in the process that the rotary seat drives the mechanical hand to move from the lowest point to the highest point.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control grinding machine, and particularly relates to a numerical control grinding machine with automatic locking function. BACKGROUND

[0002] The grinding machine is a machine tool for metal processing, which is usually used for grinding workpieces to obtain high precision and good surface finish. The existing grinding machine equipment generally has an automatic feeding and discharging mechanism, such as a mechanical hand structure, to move the material to the grinding machine for grinding by the mechanical hand.

[0003] For example, a patent document with the name of "Automatic feeding and discharging system of five-axis numerical control grinding machine" with the authorization announcement number CN221159883U and the authorization announcement date of June 18, 2024, which includes a mechanical hand fixing plate, a detachable rotary seat is installed in front of the mechanical hand fixing plate, a rotary connecting plate is installed on the top of the rotary seat, a rotary support is connected to the side wall of the rotary connecting plate, the rotary support is located at the bottom of the rotary seat, a rotary cylinder assembly is installed at the bottom of the rotary support, the rotary cylinder assembly includes a rotary cylinder, a rotatable connecting disc is installed at the bottom of the rotary cylinder, and the rotary cylinder is connected to the compressed air to drive the connecting disc to rotate and simultaneously drive the rotating block to rotate synchronously.

[0004] In the prior art, the mechanical hand structure is generally fixed on the rotary seat, so that the rotary seat is driven to rotate by the cylinder structure to move the mechanical hand structure. Obviously, the mechanical hand structure has a certain weight, which has a force to make the rotary seat rotate downward. When the cylinder structure encounters unexpected power failure or gas failure, the rotary seat is not supported and is easy to swing downward, which may cause damage to the mechanical hand structure and other parts. SUMMARY

[0005] The purpose of the present application is to provide a numerical control grinding machine with automatic locking function to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A numerical control grinding machine with automatic locking function, comprising a main body, a rotary seat is rotatably connected to the main body, a mechanical hand for grabbing material is arranged on the rotary seat, and the main body is provided with:

[0008] A check locking mechanism, comprising a check assembly for preventing the rotary seat from rotating in reverse and an elastic assembly for forcing the mechanical hand to rotate to the highest point, wherein during the rotation of the mechanical hand from the lowest point to the highest point, the check assembly prevents the mechanical hand from falling, and during the rotation of the mechanical hand from the highest point to the lowest point, the elastic assembly forces the mechanical hand to rise to lock the position of the rotary seat in cooperation with the check assembly.

[0009] The above-mentioned CNC grinding machine with automatic locking function, the non-return assembly includes an arc-shaped plate fixed on the main body, the arc-shaped plate is provided with a first ratchet and a second ratchet, a slider is slidably connected to the outer wall of the rotary 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 groove, 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 groove, 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 provided between them, 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 slider 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 rotary groove constructed on the main body, a resistance block is slidably connected in the rotary groove, and a second elastic member for forcing the resistance block to rotate is provided in the rotary groove.

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

[0017] In the above-mentioned CNC grinding machine with automatic locking function, a protrusion is constructed on the inner wall of the rotary groove, and 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 technical scheme, the numerical control grinding machine with the automatic locking function can lock the position of the rotating seat through the check valve assembly and the gravity of the mechanical arm if the driving source of the rotating seat is out of gas or power during the process that the rotating seat drives the mechanical arm to move from the lowest point to the highest point; the numerical control grinding machine can lock the position of the rotating seat through the check valve assembly and the elastic assembly if the driving source of the rotating seat is out of gas or power during the process that the rotating seat drives the mechanical arm to move from the highest point to the lowest point, so as to avoid the situation that the mechanical arm is knocked during the process that the mechanical arm loses support and swings down. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0021] Figure 2 The mechanical arm structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0022] Figure 3 The arc-shaped plate structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0023] Figure 4 The slider structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0024] Figure 5 The extension structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0025] Figure 6 The first elastic member structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0026] Figure 7 The rotating groove structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0027] Figure 8 The connecting plate structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0028] Figure 9 The connecting plate structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0029] Explanation of reference signs:

[0030] 1, main body; 2, rotating seat; 3, mechanical hand; 4, rotating cylinder; 5, arc plate; 6, first ratchet; 7, second ratchet; 8, sliding block; 9, first pawl; 10, second pawl; 11, sliding groove; 12, first elastic member; 13, first wedge block; 14, second wedge block; 15, rotating groove; 16, abutting block; 17, second elastic member; 18, extension; 19, protruding part; 20, movable block; 21, connecting plate; 22, arc-shaped groove; 23, connecting column. DETAILED DESCRIPTION

[0031] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0032] Reference Figure 1-9 , the embodiment of the present application provides a numerical control grinding machine with automatic locking function, including main body 1, the main body 1 is rotatably connected with rotating seat 2, the rotating seat 2 is provided with the mechanical hand 3 for grabbing material, the main body 1 is provided with check locking mechanism, it includes for preventing the rotating seat 2 reverse rotation check subassembly and for forcing mechanical hand 3 to rotate to the highest point elastic component, in the process that the mechanical hand 3 rotates from the lowest point to the highest point, the check subassembly prevents mechanical hand 3 to fall, in the process that the mechanical hand 3 rotates from the highest point to the lowest point, the elastic component forces mechanical hand 3 to rise, to cooperate the position of the check subassembly locking rotating seat 2.

[0033] Specifically, a grinding mechanism, a rotary seat 2 and a manipulator 3 are generally provided on a grinding machine. The rotary seat 2 can drive the manipulator 3 to rotate to switch the position of the manipulator 3, so as to pick up the material or move the material to the grinding mechanism for grinding operation; in this embodiment, the rotary seat 2 is rotatably connected to the main body 1 to drive the manipulator 3 to move through the rotary seat 2 (the manipulator 3 can use a combination of a cylinder and a clamp to grab the material), and a rotating cylinder 4 can be provided on the main body 1 to drive the rotary seat 2 to rotate back and forth within the range of 0-180 degrees. The positions of 0 degrees and 180 degrees are the lowest and highest points of the position of the manipulator 3, respectively, so that the manipulator 3 can pick up the material at the lowest and highest points of the position or move the material to the grinding mechanism for grinding operation. The innovation of the embodiment of the present invention is that a non-return locking mechanism is provided 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 of the rotating cylinder 4 driving 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 gas, 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 of the rotating cylinder 4 driving the swivel seat 2 to rotate to drive the manipulator 3 to move from the highest point to the lowest point, the other group of ratchet pawl structures The claw structure operates to prevent the swivel seat 2 from reversing. At the same time, the elastic component forces the swivel seat 2 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 by the non-return locking mechanism, so as to avoid the manipulator 3 from swinging downward under the action of gravity as much as possible, and to avoid the manipulator 3 from colliding with other structures and causing damage during the swinging process.

[0034] In another embodiment provided by the present invention, the non-return assembly includes an arc-shaped plate 5 fixed to the main body 1, the arc-shaped 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 rotary 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-shaped plate 5 is larger than the outer diameter of the rotary 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-shaped 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 rotary 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-shaped 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 rotary seat 2; when the slider 8 is in the slide groove 1 1 (the end of the sliding 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 sliding groove 11 (the end of the sliding 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] When the swivel seat 2 drives the manipulator 3 to move to the highest point, the first pawl 9 and the second pawl 10 are engaged with each other and the swivel seat 2 is engaged with the first pawl 9 and the second pawl 10 is engaged with the first ratchet 6. When the second pawl 10 is engaged with the second ratchet 7, the second pawl 10 is engaged with the second ratchet 7, thereby preventing the manipulator 3 from falling downward. 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 setting 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 slewing seat 2 is cut off or the power is cut off, the position of the slewing seat 2 can be locked by using the non-return assembly and the elastic assembly, so as to avoid the manipulator 3 from losing control and swinging downward under the action of gravity.

[0036] As an alternative to providing two torsion springs on the slider 8 to respectively force the first pawl 9 and the second pawl 10 to approach the curved plate 5, preferably, the first pawl 9 and the second pawl 10 are coaxially arranged with a torsion spring provided therebetween, the torsion spring being 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 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 affixed to the first ratchet 6 or the outer wall of the curved plate 5 under the action of the torsion spring, and the second pawl 10 is affixed to the second ratchet 7 or the outer wall of the curved plate 5 under the action of the torsion spring. In this way, the first pawl 9 and the second pawl 10 can operate in an adaptive manner during the reciprocating rotation of the swivel seat 2.

[0037] Furthermore, a first elastic member 12 is provided on the outer wall of the swivel seat 2, and the first elastic member 12 is used to force the slider 8 to be at one end of the slide groove 11. A first wedge block 13 and a second wedge block 14 are fixed to the main body 1. When the swivel seat 2 drives the manipulator 3 to rotate to the lowest point, the slider 8 contacts the first wedge block 13, forcing the slider 8 to slide to one end of the slide groove 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, forcing the slider 8 to slide to the other end of the slide groove 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 rotary 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 rotary 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 rotary seat 2 and the side wall of the slider 8. At this time, the direction of the force exerted by the first elastic member 12 on the slider 8 is perpendicular to the sliding direction of the slider 8, and 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 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 13. The first wedge block 14 and the first elastic member 12 move away from the main body 1 until the slider 8 passes the middle position of the slide groove 11. The first wedge block 13 and the first elastic member 12 jointly 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 and the slider 8 contact each other, the first pawl 9 and the second elastic member 12 move 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. 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 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 moves the second pawl 10 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 arrangement is that, during the process of the rotation seat 2 driving the mechanical claw from the highest point to the lowest point, the second pawl 10 and the second ratchet wheel 7 are adapted to operate until the mechanical claw is about to move to the lowest point, at which time the slider 8 on the rotation seat 2 and the first wedge 13 on the main body 1 are in contact with each other to force the slider 8 to move to the end of the sliding slot 11 away from the main body 1, so as to switch the positions of the first pawl 9 and the second pawl 10, and then the first pawl 9 and the first ratchet wheel 6 are adapted to operate until the mechanical claw is reset to the highest point, at which time the second wedge 14 and the slider 8 are in contact with each other to force the slider 8 to move to the end of the sliding slot 11 close to the main body 1, so as to switch the positions of the first pawl 9 and the second pawl 10 again, and then the check assembly is adapted to operate during the process of the rotary cylinder 4 driving the rotation seat 2 and the mechanical claw 3 to rotate, so as to lock the rotation seat 2 when the driving source of the rotation seat 2 is powered off or loses gas.

[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 rotary groove 15 constructed on the main body 1, and a resistance block 16 is slidably connected in the rotary groove 15. A second elastic member 17 for forcing the resistance block 16 to rotate is provided in the rotary groove 15. An extension portion 18 is constructed on the slider 8. When the slider 8 moves to the other end of the slide groove 11 (close to one end of the main body 1), the extension portion 18 moves into the rotary groove 15 and is resisted by the resistance block 16. A protrusion 19 is constructed on the inner wall of the rotary groove 15. When the extension portion 18 moves to the rotary groove 15, it is on the side of the protrusion 19. 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 contact block 16, so that the second elastic member 17 forces the contact block 16 to move to the side away from the second elastic member 17; the extension 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 18. When the rotary seat 2 drives the manipulator 3 to move to the highest point, the slider 8 switches When the slider 8 is switched to the end of the chute 11 close to the main body 1, the extension 18 is close to 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 interference block 16 moves away from the second elastic member 17 and contacts the protrusion 19. Subsequently, when the slider 8 is switched 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 the side of the protrusion 19 and does not conflict with the interference block 16 (that is, there is a gap in the rotary groove 15). A certain space can make the extension part 18 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 part 18 move with the rotary seat 2, so that the extension part 18 passes over the protrusion 19 and abuts against the resistance block 16, so that when the manipulator 3 moves to the lowest point, the second elastic member 17 and the resistance 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 cut off or the power is cut off, the second elastic member 17 and the resistance block 16 can force the extension part 18 to move downward. The extension 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 18 to move out of the swivel groove 15, so that the contact block 16 loses the contact with the extension 18, and thus under the action of the second elastic member 17, the contact block 16 is forced to contact the protrusion 19 again, so that the next time the slider 8 approaches the main body 1, it will contact the extension 18 again.

[0040] The advantage of such a setting is that by setting the protrusion 19, the position of the interference 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 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 interference block 16 can apply resistance to the extension 18, so as to cooperate with the non-return assembly to lock the position of the swivel seat 2 when the driving source of the swivel seat 2 is cut off from air or power; until the slider 8 switches to the end of the slide groove 11 away from the main body 1, the extension 18 moves out of the rotary groove 15, and the interference 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 rotary groove 15, the rotary groove 15 is further constructed into a spiral shape, and one end of the rotary groove 15 having a protrusion 19 is farther away from the rotary seat 2 than the other end, and a movable block 20 is slidably connected in the rotary 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, and a connecting plate 21 is fixed on the outer wall of the rotary 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 interference 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 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 interference 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 movable space in the rotary groove 15 (the moving path of the extension portion 18 is different from the path of the rotary groove 15. 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 interference 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 interference 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. At this time, the position of the movable block 20 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 at the same time the swivel seat 2 drives the connecting plate 21 to rotate clockwise, forcing 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 Figure 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 separates from the resistance block 16, so that the resistance block 16 is reset along the rotary groove 15 under the action of the second elastic member 17, and then the rotary seat 2 drives the manipulator 3 to move to the highest point to drive the movable block 20 to reset. This 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 rotary seat 2 is reduced, thereby reducing energy waste while applying resistance to the rotary seat 2, and being more adapted to the operation of the check assembly.

[0042] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A CNC grinding machine with an automatic locking function, comprising a main body, a rotary seat rotatably connected to the main body, and a manipulator for grabbing materials provided on the rotary seat, characterized in that: The main body is provided with: A non-return locking mechanism, comprising a non-return assembly for preventing the swivel seat from reversing and an elastic assembly 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 assembly prevents the manipulator from falling. During the process of the manipulator rotating from the highest point to the lowest point, the elastic assembly forces the manipulator to rise to cooperate with the non-return assembly to lock the position of the swivel seat. The anti-return assembly includes an arc-shaped plate fixed to the main body, the arc-shaped plate is provided with a first ratchet and a second ratchet, a slider is slidably connected to the outer wall of the rotary seat, and the slider is rotatably connected to the first pawl and the second pawl; The outer wall of the rotary seat is configured with a slide groove, and the slider is slidably connected in the slide groove; A first wedge block and a second wedge block are 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.

2. The CNC grinding machine with automatic locking function according to claim 1, characterized in that: 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.

3. The CNC grinding machine with automatic locking function according to claim 2, characterized in that: The first pawl and the second pawl are coaxially arranged with a torsion spring disposed therebetween. The torsion spring is used to force the first pawl and the second pawl to approach each other.

4. The CNC grinding machine with automatic locking function according to claim 2, characterized in that: A first elastic member is provided on the outer wall of the swivel seat, and the first elastic member is used to force the sliding block to be located at one end of the sliding groove.

5. The CNC grinding machine with automatic locking function according to claim 1, characterized in that: The elastic component includes a rotation groove constructed on the main body, a resistance block is slidably connected in the rotation groove, and a second elastic member for forcing the resistance block to rotate is arranged in the rotation groove.

6. The CNC grinding machine with automatic locking function according to claim 5, characterized in that: An extension portion is constructed on the slider. When the slider moves to the other end of the slide groove, the extension portion moves into the rotary groove and is abutted by the abutment block.

7. The CNC grinding machine with automatic locking function according to claim 6, characterized in that: A convex portion is formed on the inner wall of the rotary groove. When the extension portion moves to the rotary groove, it is located on one side of the convex portion. When the extension portion passes over the convex portion, it abuts against the abutment block.

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