Clamping equipment for valve polishing and using method thereof

Abstract

The invention belongs to the technical field of engine valve production and machining, and particularly relates to clamping equipment for valve grinding and a using method thereof.The clamping equipment comprises a grinding machine box, a grinding wheel is installed in the grinding machine box, a clamping base is installed on the inner bottom wall of the grinding machine box, and a clamping mechanism is installed on the surface of the upper end of the clamping base; the clamping mechanism comprises clamping rods, every two adjacent clamping rods are staggered to form a clamping arm, and each clamping arm is in an X shape; and a detection mechanism is mounted on the surface of the lower end of the clamping arm. According to the clamping equipment for valve polishing and the using method thereof, the clamping mechanism is arranged in the polishing machine box, when a clamping arm is used for clamping and fixing a valve, the valve is driven to ascend and descend through deformation movement of the clamping arm, and then the valve is driven to make contact with and be separated from a polishing wheel; and therefore, the clamping mechanism can conveniently drive the air valve to move while conveniently fixing the air valve.

Description

Technical Field

[0001] The present invention relates to the technical field of engine valve production and processing, and particularly relates to a clamping device for valve grinding and its usage method. Background Art

[0002] During the production and processing of valves, a manipulator transports the valves into the grinding equipment, and then a clamping mechanism is used for fixation. However, the clamping mechanism has a single function, and existing grinding and processing equipment can only grind the surface of the valves, making it inconvenient to detect the grinding effect of the valves. As a result, some defective products will also be received and enter the next process together, thus wasting subsequent processing resources. In the grinding equipment, the debris and sparks of the grinding wheel fly everywhere, making it inconvenient to install the detection equipment inside the grinding and processing equipment, and further inconvenient to detect the valves in a timely manner, thus making it inconvenient to use. Summary of the Invention

[0003] Based on the technical problem that the clamping device for valve grinding in the prior art has a single function, the present invention proposes a clamping device for valve grinding and its usage method.

[0004] A clamping device for valve grinding proposed by the present invention includes a grinding machine case. A grinding wheel is installed inside the grinding machine case, and a clamping base is installed on the inner bottom wall of the grinding machine case. A clamping mechanism is installed on the upper surface of the clamping base. The clamping mechanism includes clamping rods. Two adjacent clamping rods are staggered to form a clamping arm, and the clamping arm is in an X shape. A detection mechanism is installed on the lower surface of the clamping arm. The detection mechanism includes an industrial camera, and the industrial camera is fixedly connected to the outer wall surface of the clamping base through a fixing frame.

[0005] Preferably, clamping plates are fixedly connected to the opposite surfaces of two adjacent clamping arms, and clamping grooves are formed on the surfaces of the clamping plates.

[0006] Through the above technical solution, by making the lower ends of the two clamping plates stagger from each other, it is convenient for the lower ends of the two clamping plates to be close to each other for temporarily storing the valves. Fixed structures such as anti-slip pads can also be installed in the clamping grooves, which is further convenient for fixing the valves.

[0007] Preferably, the intersection points of two adjacent clamping arms are rotatably connected to a rotating shaft through bearings. A blanking rod is fixedly connected to the upper surface of the clamping base, and a sliding groove is formed on the side wall surface of the blanking rod. One end of the rotating shaft is slidably connected to the inner wall of the sliding groove.

[0008] Through the above technical solution, while using the blanking rod to limit the movement of the rotating shaft, the upper end of the blanking rod is used to jack up the falling of the valves, which is convenient for promoting the unbalanced sliding of the valves.

[0009] Preferably, an installation groove is formed on the upper surface of the clamping base, and the lower end surface of the clamping arm is slidably connected to the inner wall of the installation groove.

[0010] Through the above technical solution, the lower end of the clamping arm is limited by the installation groove, so as to facilitate the lifting of the upper end and the middle part of the clamping arm when the lower end of the clamping arm moves horizontally.

[0011] Preferably, a limiting groove is formed on the inner side wall of the lower end of the installation groove, a limiting column is rotatably connected to the side wall surface of the lower end of the clamping arm through a rotating shaft, and the surface of the limiting column is slidably connected to the inner wall of the limiting groove.

[0012] Through the above technical solution, the lower end of the clamping arm is restricted by the limiting column and the limiting groove, so as to facilitate hindering the lifting of the lower end of the clamping arm.

[0013] Preferably, a connecting frame is slidably sleeved on the lower end surface of the clamping rod, the connecting frame is rectangular, threaded holes are formed on the side wall surfaces of the two connecting frames, and a lead screw is threadedly connected to the inner wall of the threaded hole. The thread directions of the two ends of the lead screw are opposite.

[0014] Through the above technical solution, due to the opposite thread directions of the two ends of the lead screw, it is convenient for the two connecting frames on the surface of the lead screw to move in opposite directions when the lead screw rotates.

[0015] Preferably, one end of the lead screw is drivingly connected to a transmission mechanism, a driving motor is fixedly connected to the inside of the clamping base, and the output shaft of the driving motor is drivingly connected to the input end of the transmission mechanism.

[0016] Through the above technical solution, the driving motor and the lead screw are connected by the transmission mechanism, so as to facilitate driving the lead screw to rotate. The transmission mechanism is a traditional synchronous belt and transmission wheel structure, which consists of two transmission wheels respectively connected to the lead screw and the output shaft of the driving motor, and then the two transmission wheels are connected by a synchronous belt.

[0017] Preferably, a driving rod is rotatably connected to the connecting frame through a rotating shaft, a deflecting gear is fixedly sleeved on the surface of the driving rod, a rack is fixedly connected to the upper surface of the clamping base, and the surface of the rack is meshed with the surface of the deflecting gear.

[0018] Through the above technical solution, the driving rod is connected to the rack through the deflecting gear, so as to facilitate the driving rod to rotate itself through the deflecting gear when the driving rod translates.

[0019] Preferably, a baffle is fixedly connected to the end of the driving rod, and the baffle is located above the industrial camera.

[0020] Through the above technical solution, the surface of the industrial camera is shielded by a baffle, so as to avoid damage to the industrial camera caused by debris generated during grinding. Two baffles are arranged to stagger and repeatedly shield the surface of the industrial camera, thereby improving the protection efficiency. Cleaning supplies such as cotton cloth can also be installed on the lower surface of the baffle to clean and maintain the surface of the industrial camera.

[0021] A method of using a clamping device for valve grinding: Step 1, the lower ends of two adjacent clamping plates are close to each other. The grinding machine case places the valve on the surfaces of the two clamping plates through a robotic arm. The drive motor is started, and the drive motor drives the lead screw to rotate through a transmission mechanism. The rotation of the lead screw causes the two connecting frames to approach each other. The connecting frames drive the two clamping rods at the lower ends of the clamping arms to approach each other. The upper ends of the clamping rods squeeze the valve through the clamping plates, causing the valve to slide upward into the card slot and fixing the valve.

[0022] Step 2, at the same time, the two connecting frames drive the two baffles to approach each other through the drive rods. The drive rods drive the deflection gears to slide over the surfaces of the racks. The deflection gears drive the baffles to deflect through the drive rods. The baffles deflect horizontally, and the deflected baffles cover the surface of the industrial camera. While the valve slides upward, the clamping rods deflect and tend to be vertical, driving the valve to rise. The surface of the valve contacts the surface of the grinding wheel. The drive motor is stopped, and the rotating shaft rises on the inner wall of the chute on the blanking rod. The grinding wheel in the grinding machine case is started, and the surface of the grinding wheel at the 3 o'clock direction grinds the surface of the valve.

[0023] Step 3, after grinding is completed, the grinding wheel is stopped, the drive motor is started, the output shaft of the drive motor rotates in the reverse direction, the transmission mechanism drives the lead screw to rotate in the reverse direction, the connecting frames drive the two clamping rods at the lower ends of the clamping arms to separate from each other, the two connecting frames drive the two baffles to separate from each other through the drive rods, the drive rods drive the deflection gears to slide over the surfaces of the racks, the deflection gears drive the baffles to deflect through the drive rods, the baffles deflect vertically, and the industrial camera is exposed.

[0024] Step 4, the clamping rods deflect and tend to be horizontal, the valve slides down on the upper surface of the clamping arm, the rotating shaft slides down on the inner wall of the chute on the blanking rod. During the sliding process of the valve, the upper surface of the blanking rod obstructs one end of the valve, and the grinding surface of the valve slides down towards the surface of the industrial camera due to imbalance.

[0025] The beneficial effects in the present invention are as follows:

[0026] 1. By setting the clamping mechanism in the grinding machine case, while clamping and fixing the valve by using the clamping arm, the deformation and movement of the clamping arm drive the valve to lift and lower, thereby driving the valve to contact and separate from the grinding wheel. Thus, the clamping mechanism is convenient for fixing the valve and also convenient for driving the valve to move.

[0027] 2. By installing a detection mechanism on the surface of the clamping base, while using the industrial camera in the detection mechanism to detect the polished surface of the valve, the surface of the industrial camera is shielded and protected by the baffle in the detection mechanism, and the movement of the baffle is synchronized with the operation of the clamping mechanism, so as to facilitate the removal of the baffle when the valve is unloaded, and when the valve is polished, the baffle shields and protects the surface of the industrial camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of a clamping device and its usage method for valve polishing proposed by the present invention;

[0029] Figure 2 Cross-sectional view of the polishing machine box structure of a clamping device and its usage method for valve polishing proposed by the present invention;

[0030] Figure 3 Stereogram of the clamping base structure of a clamping device and its usage method for valve polishing proposed by the present invention;

[0031] Figure 4 Cross-sectional view of the clamping base structure of a clamping device and its usage method for valve polishing proposed by the present invention;

[0032] Figure 5 A clamping device and its usage method for valve polishing proposed by the present invention Figure 4 Enlarged view of the structure at A in

[0033] Figure 6 Stereogram of the clamping rod structure of a clamping device and its usage method for valve polishing proposed by the present invention;

[0034] Figure 7 Cross-sectional view of the transmission mechanism of a clamping device and its usage method for valve polishing proposed by the present invention.

[0035] In the figure: 1. Polishing machine box; 2. Polishing wheel; 3. Clamping base; 4. Clamping rod; 41. Clamping plate; 42. Card slot; 43. Rotating shaft; 44. Unloading rod; 45. Installation groove; 46. Limiting groove; 47. Limiting column; 5. Industrial camera; 51. Connection frame; 52. Lead screw; 53. Transmission mechanism; 54. Driving motor; 55. Driving rod; 56. Deflection gear; 57. Rack; 58. Baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0037] Referring toFigures 1 - 7 , A clamping device for valve grinding and its use method, including a grinding machine case 1. A grinding wheel 2 is installed inside the grinding machine case 1. A clamping base 3 is installed on the inner bottom wall of the grinding machine case 1. A clamping mechanism is installed on the upper surface of the clamping base 3. The clamping mechanism includes clamping rods 4. Adjacent two clamping rods 4 are staggered to form a clamping arm, and the clamping arm is in an X shape; a detection mechanism is installed on the lower surface of the clamping arm. The detection mechanism includes an industrial camera 5, and the industrial camera 5 is fixedly connected to the outer wall surface of the clamping base 3 through a fixing frame.

[0038] In order to fix the valve, clamping plates 41 are fixedly connected to the opposite surfaces of adjacent two clamping arms. A clamping groove 42 is opened on the surface of the clamping plate 41. By making the lower ends of the two clamping plates 41 stagger from each other, it is convenient for the lower ends of the two clamping plates 41 to approach and combine to temporarily store the valve. Fixed structures such as anti-slip pads can also be installed in the clamping groove 42, and then it is convenient to further fix the valve. The intersection points of adjacent two clamping arms are all rotatably connected through bearings with a rotating shaft 43. A blanking rod 44 is fixedly connected to the upper surface of the clamping base 3. A sliding groove is opened on the side wall surface of the blanking rod 44. One end of the rotating shaft 43 is slidably connected to the inner wall of the sliding groove. While using the blanking rod 44 to limit the movement of the rotating shaft 43, the upper end of the blanking rod 44 is used to lift the falling of the valve, and then it is convenient to cause the valve to slide down out of balance.

[0039] In order to install the clamping arm, an installation groove 45 is opened on the upper surface of the clamping base 3. The lower surface of the clamping arm is slidably connected to the inner wall of the installation groove 45. Using the installation groove 45 to limit the lower end of the clamping arm, it is convenient to promote the lifting of the upper end and the middle part of the clamping arm when the lower end of the clamping arm moves horizontally. A limiting groove 46 is opened on the inner side wall of the lower end of the installation groove 45. A limiting column 47 is rotatably connected to the side wall surface of the lower end of the clamping arm through a rotating shaft. The surface of the limiting column 47 is slidably connected to the inner wall of the limiting groove 46. Using the limiting column 47 and the limiting groove 46 to limit the lower end of the clamping arm, it is convenient to prevent the lower end of the clamping arm from lifting.

[0040] By setting the clamping mechanism inside the grinding machine case 1, while using the clamping arm to clamp and fix the valve, the deformation movement of the clamping arm drives the valve to lift, and then drives the valve to contact and separate from the grinding wheel 2. Thus, the clamping mechanism is convenient for fixing the valve and also convenient for driving the valve to move.

[0041] In order to drive the lower end of the clamping arm, a connecting frame 51 is slidably sleeved on the lower end surface of the clamping rod 4. The connecting frame 51 is rectangular. Threaded holes are formed on the side wall surfaces of the two connecting frames 51. A lead screw 52 is threadedly connected to the inner wall of the threaded hole. The thread directions on the two ends of the lead screw 52 are opposite. By using the opposite thread directions on the two ends of the lead screw 52, it is convenient for the two connecting frames 51 on the surface of the lead screw 52 to move in opposite directions when the lead screw 52 rotates. One end of the lead screw 52 is drivingly connected to a transmission mechanism 53. A driving motor 54 is fixedly connected inside the clamping base 3. The output shaft of the driving motor 54 is drivingly connected to the input end of the transmission mechanism 53. By using the transmission mechanism 53 to connect the driving motor 54 and the lead screw 52, it is convenient to drive the lead screw 52 to rotate. The transmission mechanism 53 is a traditional synchronous belt and transmission wheel structure, which consists of two transmission wheels respectively connected to the lead screw 52 and the output shaft of the driving motor 54, and then the two transmission wheels are connected by a synchronous belt.

[0042] In order to protect the surface of the industrial camera 5, a driving rod 55 is rotatably connected to the connecting frame 51 through a rotating shaft. A deflection gear 56 is fixedly sleeved on the surface of the driving rod 55. A rack 57 is fixedly connected to the upper surface of the clamping base 3. The surface of the rack 57 meshes with the surface of the deflection gear 56. By using the driving rod 55 to connect with the rack 57 through the deflection gear 56, it is convenient for the rack 57 to drive the driving rod 55 to rotate self when the driving rod 55 translates. A baffle 58 is fixedly connected to the end of the driving rod 55. The baffle 58 is located above the industrial camera 5. By using the baffle 58 to block the surface of the industrial camera 5, it is convenient to prevent the debris generated during grinding from damaging the industrial camera 5. And two baffles 58 are arranged to stagger and repeatedly block the surface of the industrial camera 5, thereby improving the protection efficiency. Cleaning supplies such as cotton cloth can also be installed on the lower surface of the baffle 58 to clean and maintain the surface of the industrial camera 5.

[0043] By arranging a detection mechanism on the surface of the clamping base 3, while using the industrial camera 5 in the detection mechanism to detect the grinding surface of the valve, using the baffle 58 in the detection mechanism to shield and protect the surface of the industrial camera 5, and making the movement of the baffle 58 synchronous with the operation of the clamping mechanism, it is convenient to move the baffle 58 away when the valve is unloaded, and block the surface of the industrial camera 5 with the baffle 58 during valve grinding.

[0044] Working principle: Step 1, the lower ends of two adjacent clamping plates 41 are close to each other. The grinding machine case 1 places the valve on the surfaces of the two clamping plates 41 through the robotic arm. The driving motor 54 is started, and the driving motor 54 drives the lead screw 52 to rotate through the transmission mechanism 53. The rotation of the lead screw 52 causes the two connecting frames 51 to approach each other. The connecting frame 51 drives the two clamping rods 4 at the lower end of the clamping arm to approach each other. The upper ends of the clamping rods 4 squeeze the valve through the clamping plates 41, causing the valve to slide upward into the card slot 42 and fixing the valve.

[0045] Step 2, meanwhile, the two connecting frames 51 drive the two baffles 58 to approach each other through the driving rods 55. The driving rod 55 drives the deflecting gear 56 to slide on the surface of the rack 57. The deflecting gear 56 drives the baffle 58 to deflect through the driving rod 55. The baffle 58 deflects horizontally. The deflected baffle 58 covers the surface of the industrial camera 5. While the valve slides upward, the clamping rod deflects and tends to be erected, driving the valve to rise. The surface of the valve contacts the surface of the grinding wheel 2. The driving motor 54 is stopped, and the rotating shaft 43 rises on the inner wall of the chute on the surface of the blanking rod 44. The grinding wheel 2 in the grinding machine case 1 is started, and the surface of the grinding wheel 2 at the 3 o'clock direction grinds the surface of the valve.

[0046] Step 3, after grinding is completed, the grinding wheel 2 is stopped, and the driving motor 54 is started. The output shaft of the driving motor 54 rotates in the reverse direction. The transmission mechanism 53 drives the lead screw 52 to rotate in the reverse direction. The connecting frame 51 drives the two clamping rods 4 at the lower end of the clamping arm to separate from each other. The two connecting frames 51 drive the two baffles 58 to separate from each other through the driving rods 55. The driving rod 55 drives the deflecting gear 56 to slide on the surface of the rack 57. The deflecting gear 56 drives the baffle 58 to deflect through the driving rod 55. The baffle 58 deflects and stands upright, and the industrial camera 5 is exposed.

[0047] Step 4, the clamping rod 4 deflects and tends to be horizontal. The valve slides down on the upper surface of the clamping arm. The rotating shaft 43 slides down on the inner wall of the chute on the surface of the blanking rod 44. During the process of the valve sliding down, the upper surface of the blanking rod 44 obstructs one end of the valve, and the grinding surface of the valve slides down toward the surface of the industrial camera 5 due to imbalance.

[0048] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A clamping device for valve grinding, including a grinding machine case (1), and a grinding wheel (2) is installed inside the grinding machine case (1), characterized in that: A clamping base (3) is installed on the inner bottom wall of the grinding machine case (1). A clamping mechanism is installed on the upper surface of the clamping base (3). The clamping mechanism includes clamping rods (4). Adjacent two clamping rods (4) are staggered to form a clamping arm, and the clamping arm is in an X shape. A detection mechanism is installed on the lower surface of the clamping arm. The detection mechanism includes an industrial camera (5), and the industrial camera (5) is fixedly connected to the outer wall surface of the clamping base (3) through a fixing frame.

2. The clamping device for valve grinding according to claim 1, characterized in that: Clamping plates (41) are fixedly connected to the opposite surfaces of adjacent two clamping arms, and clamping grooves (42) are formed on the surfaces of the clamping plates (41).

3. The clamping device for valve grinding according to claim 2, characterized in that: The intersection points of adjacent two clamping arms are all rotatably connected by bearings with rotating shafts (43). A blanking rod (44) is fixedly connected to the upper surface of the clamping base (3). A chute is formed on the side wall surface of the blanking rod (44), and one end of the rotating shaft (43) is slidably connected to the inner wall of the chute.

4. The clamping device for valve grinding according to claim 3, characterized in that: An installation groove (45) is formed on the upper surface of the clamping base (3), and the lower surface of the clamping arm is slidably connected to the inner wall of the installation groove (45).

5. The clamping device for valve grinding according to claim 4, wherein: A limiting groove (46) is formed on the lower inner side wall of the installation groove (45). A limiting column (47) is rotatably connected to the lower side wall surface of the clamping arm through a rotating shaft, and the surface of the limiting column (47) is slidably connected to the inner wall of the limiting groove (46).

6. The clamping device for valve grinding according to claim 5, characterized in that: A connecting frame (51) is slidably sleeved on the lower surface of the clamping rod (4). The connecting frame (51) is rectangular. Threaded holes are formed on the side wall surfaces of the two connecting frames (51), and screw rods (52) are threadedly connected to the inner walls of the threaded holes. The threaded directions of the two ends of the screw rod (52) are opposite.

7. The clamping device for valve grinding according to claim 6, characterized in that: One end of the screw rod (52) is drivingly connected to a transmission mechanism (53). A driving motor (54) is fixedly connected to the inside of the clamping base (3), and the output shaft of the driving motor (54) is drivingly connected to the input end of the transmission mechanism (53).

8. The clamping device for valve grinding according to claim 7, characterized in that: The connecting frame (51) is rotatably connected to a driving rod (55) through a rotating shaft. A deflection gear (56) is fixedly sleeved on the surface of the driving rod (55). A rack (57) is fixedly connected to the upper surface of the clamping base (3), and the surface of the rack (57) is meshed with the surface of the deflection gear (56).

9. The clamping device for valve grinding according to claim 8, wherein: A baffle (58) is fixedly connected to the end of the driving rod (55), and the baffle (58) is located above the industrial camera (5).

10. The usage method of a clamping device for valve grinding according to any one of claims 1-9 is as follows: Step 1, the lower ends of two adjacent clamping plates (41) are close to each other. The grinding machine case (1) places the valve on the surfaces of the two clamping plates (41) through a robotic arm. Start the driving motor (54). The driving motor (54) drives the lead screw (52) to rotate through the transmission mechanism (53). The rotation of the lead screw (52) causes the two connecting frames (51) to approach each other. The connecting frames (51) drive the two clamping rods (4) at the lower ends of the clamping arms to approach each other. The upper ends of the clamping rods (4) squeeze the valve through the clamping plates (41), causing the valve to slide upward into the card slot (42) and fixing the valve. Step 2, at the same time, the two connecting frames (51) drive the two baffle plates (58) to approach each other through the driving rod (55). The driving rod (55) drives the deflection gear (56) to slide on the surface of the rack (57). The deflection gear (56) drives the baffle plate (58) to deflect through the driving rod (55). The baffle plate (58) deflects horizontally. The deflected baffle plate (58) covers the surface of the industrial camera (5). While the valve slides upward, the clamping rod deflects and tends to be vertical, driving the valve to rise. The surface of the valve contacts the surface of the grinding wheel (2). Stop the driving motor (54). The rotating shaft (43) rises on the inner wall of the chute on the surface of the blanking rod (44). Start the grinding wheel (2) in the grinding machine case (1). The surface of the grinding wheel (2) at the 3 o'clock direction grinds the surface of the valve. Step 3, after grinding, stop the grinding wheel (2). Start the driving motor (54). The output shaft of the driving motor (54) rotates in the reverse direction. The transmission mechanism (53) drives the lead screw (52) to rotate in the reverse direction. The connecting frame (51) drives the two clamping rods (4) at the lower ends of the clamping arms to separate from each other. The two connecting frames (51) drive the two baffle plates (58) to separate from each other through the driving rod (55). The driving rod (55) drives the deflection gear (56) to slide on the surface of the rack (57). The deflection gear (56) drives the baffle plate (58) to deflect through the driving rod (55). The baffle plate (58) deflects vertically, and the industrial camera (5) is exposed. Step 4, the clamping rod (4) deflects and tends to be horizontal. The valve slides down on the upper surface of the clamping arm. The rotating shaft (43) slides down on the inner wall of the chute on the surface of the blanking rod (44). During the sliding of the valve, the upper surface of the blanking rod (44) obstructs one end of the valve. The unbalanced grinding surface of the valve slides towards the surface of the industrial camera (5).

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