Automatic feeding device for flywheel casting grinding

Abstract

The invention relates to the field of casting grinding, and discloses an automatic feeding device for flywheel casting grinding. A workpiece blocking mechanism; the number of the workpiece blocking mechanisms is two, the two workpiece blocking mechanisms are arranged at the front end of the feeding frame and the lower portion of the middle of the feeding frame correspondingly, and the workpiece blocking mechanism at the front end is used for triggering rear stacking while blocking the workpieces in the front. When the flywheel casting starts to move, the linkage arm above the blocking rod also starts to move upwards, the linkage arm moves upwards to drive the connecting sliding block, then the overturning arm rotates around the connecting sliding block, the overturning arm rotates to drive the downward-moving swing arm to swing downwards, and therefore the workpiece blocking barrel is overturned to the position behind the workpiece and located behind the flywheel casting. And subsequent flywheel castings are prevented from being stacked on the previous workpiece, and in this way, when the workpieces in the operation area are polished, the next workpiece is prevented from being stacked with the workpieces behind while the workpieces behind are blocked.

Description

Technical Field

[0001] The present invention relates to the field of casting grinding, and particularly to an automatic feeding device for grinding flywheel castings. Background Art

[0002] A casting grinding device is used to grind the surface of castings. During the casting process, risers and flash residues will be generated on the castings. These risers and flash residues can be removed through grinding to facilitate better processing of the castings. An automatic feeding device for grinding flywheel castings is an automated equipment specifically designed for the grinding process of flywheel castings. Its core function is to achieve automatic feeding of flywheel castings during the grinding process, thereby improving the grinding efficiency.

[0003] According to the Chinese authorized patent publication number: CN212739731U, there is disclosed a product automatic grinding and automatic feeding device, which relates to the field of product automatic grinding and automatic feeding devices. It includes a first installation bin, a first motor is installed inside the first installation bin, and the output end of the first motor is connected to a bottom plate. The top end of the bottom plate is connected to a rotating plate, and a connecting groove is provided inside the rotating plate. Through the settings of the first installation bin, first motor, bottom plate, rotating plate, connecting groove, clamping jaws, loading rack, second installation bin, air cylinder, second motor, pushing block, and sleeve, when the loading rack transports the bearings to one end, the air cylinder and the second motor are started, which will drive the pushing block to press down and rotate, and push the bearings into the inside of the connecting groove. Then the first motor is started, driving the bottom plate to rotate, so as to load multiple groups of bearings into the corresponding connecting grooves. The clamping jaws automatically clamp to achieve automatic feeding and fixing, reducing manual participation and accelerating production. However, this device still has deficiencies. The blocking mechanism of this automatic grinding and automatic feeding device is simply designed, often relying only on a single baffle or stop rod for blocking. After some devices block the workpieces from entering the grinding area, there is no subsequent anti-stacking measure. When the subsequent workpieces continue to be transported to the blocking position, due to the lack of an effective anti-stacking mechanism, the workpieces are prone to accumulate behind the blocking position, forming a stack. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic feeding device for grinding flywheel castings, which solves the above problems.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic feeding device for grinding flywheel castings, comprising:

[0006] A feeding frame;

[0007] Workpiece stop mechanism; the number of the workpiece stop mechanisms is set to two, and the two workpiece stop mechanisms are respectively arranged at the front end and the lower part of the middle of the feeding frame. The front workpiece stop mechanism is used to trigger the stacking at the back while stopping the material in front of the workpiece. The workpiece stop mechanism includes a cylinder, a first guide rod, a connecting plate, a blocking rod, a linkage arm, a limit slide rail, a turning arm, a downward moving swing arm, a workpiece blocking cylinder and a reset torsion spring. The cylinder is arranged at the bottom of the feeding frame, and the fixed end of the cylinder is fixedly connected with the feeding frame. The free end of the cylinder is rotatably connected with a first guide rod. One end of the first guide rod far away from the cylinder is rotatably connected with a second guide rod. One end of the second guide rod far away from the first guide rod is fixedly connected with a connecting plate. Two blocking rods are arranged above the connecting plate. Linkage arms are arranged above the two blocking rods. Connecting sliders are slidably connected to the inner sides of the two linkage arms. Turning arms are rotatably connected to the outer sides of the two connecting sliders. One ends of the two turning arms far away from the corresponding connecting sliders are rotatably connected with downward moving swing arms. Inner sides of one ends of the two downward moving swing arms far away from the corresponding turning arms are fixedly connected with workpiece blocking cylinders. The flywheel casting to be polished is conveyed from the rear conveying line to the polishing inlet. The workpiece sensor detects the workpiece and sends a signal to the cylinder. The cylinder extends, pushing the first guide rod, the second guide rod and the connecting plate to move upward. The connecting plate drives the blocking rod to move upward, completely blocking the flywheel casting in front. If there is a polishing operation in the working area, the flywheel casting will be blocked at the polishing inlet, and the subsequent workpieces will continue to be conveyed to the second stop cylinder. When the blocking rod moves up to the highest position, the linkage arm above the blocking rod also starts to move up. The upward movement of the linkage arm drives the connecting slider, and then makes the turning arm rotate around the connecting slider. The rotation of the turning arm drives the downward moving swing arm to swing downward, so that the workpiece blocking cylinder is turned to the rear of the workpiece. The workpiece blocking cylinder is located behind the flywheel casting, avoiding the subsequent flywheel castings from stacking on the previous workpiece. In this way, while realizing the stop of the workpiece in the working area during polishing, the stacking of the next workpiece and the subsequent workpieces is prevented.

[0008] Preferably, a torsion spring is arranged at the rotational connection between the turning arm and the connecting slider. The linkage arm is slidably connected to the inner side of the limit slide rail. The limit slide rail is fixedly connected to the inner side of the diversion plate. A protective sleeve is sleeved on the outer side of the second guide rod.

[0009] Preferably, it further includes a specification adjustment mechanism. The specification adjustment mechanism includes a handwheel ring, a first lead screw sleeve, a second lead screw sleeve, a linear slider, a diversion plate and a handwheel transmission shaft. The handwheel transmission shaft is arranged at the lower part of the middle of the feeding frame and is rotatably connected with the feeding frame. The left and right outer ends of the handwheel transmission shaft are respectively fixedly connected with a first lead screw sleeve and a second lead screw sleeve. The thread directions on the outer surfaces of the first lead screw sleeve and the second lead screw sleeve are opposite.

[0010] Preferably, linear sliders are threadedly connected to the outer sides of the first lead screw sleeve and the second lead screw sleeve. The upper ends of both linear sliders are fixedly connected to flow guiding plates. One end of the handwheel transmission shaft is drivingly connected to a handwheel ring. When it is necessary to adjust the position between the two flow guiding plates according to the flywheel casting to be polished, the operator rotates the handwheel ring. The handwheel ring transmits the rotational motion to the first lead screw sleeve and the second lead screw sleeve through the handwheel transmission shaft. When the handwheel transmission shaft rotates, the first lead screw sleeve and the second lead screw sleeve rotate simultaneously. However, due to the opposite thread directions, they drive the linear sliders to move in opposite directions. The linear sliders are threadedly connected to the first lead screw sleeve and the second lead screw sleeve. As the lead screw sleeves rotate, the two linear sliders move left and right along the feeding frame. The upper ends of the two linear sliders are fixedly connected to flow guiding plates. As the linear sliders move, the positions of the flow guiding plates are also adjusted accordingly, thereby changing the position and spacing of the flywheel casting to be polished to adapt to flywheel castings of different specifications. Through the cooperation of the handwheel ring, lead screw sleeves, and linear sliders, the position of the flow guiding plate can be adjusted quickly and accurately to adapt to flywheel castings of different specifications, improving the flexibility and applicability of the equipment.

[0011] Preferably, it further includes an installation and conveying mechanism. The installation and conveying mechanism includes a driving motor, conveying rollers, driving sprockets, driving chains, transmission sprockets, and transmission chains. The driving motor is fixedly connected to the feeding frame. The output end of the driving motor is drivingly connected to a driving sprocket, and the driving sprocket is meshingly connected to a driving chain on the outside.

[0012] Preferably, the number of the conveying rollers is set to be multiple. The multiple conveying rollers are horizontally distributed inside the feeding frame. Each conveying roller is rotatably connected to the feeding frame. One end of each conveying roller penetrates through the feeding frame, and transmission sprockets are fixedly connected to the outside of the ends of the conveying rollers that penetrate through the feeding frame. A transmission chain is sleeved on the outside of the multiple transmission sprockets, and each transmission sprocket is meshingly connected to the transmission chain.

[0013] Preferably, the outside of the two middle transmission sprockets is sleeved inside the driving chain and is meshingly connected to the driving chain.

[0014] Preferably, a plurality of spacing adjustment holes are provided on the upper surface of the connecting plate, and the blocking rod is threadedly connected to the connecting plate through the spacing adjustment holes.

[0015] Preferably, a position sensor is provided on the inner side of the front end of the feeding frame, and the position sensor is electrically connected to the air cylinder.

[0016] Preferably, a plurality of flywheel castings to be polished are arranged between the two flow guiding plates.

[0017] Beneficial effects

[0018] The present invention provides an automatic feeding device for grinding flywheel castings. Compared with the prior art, it has the following beneficial effects:

[0019] 1. In the present invention, through the workpiece baffle mechanism provided, the flywheel casting to be ground is conveyed from the rear conveying line to the grinding inlet. The workpiece sensor detects the workpiece and sends a signal to the cylinder. The cylinder extends, pushing the first guide rod, the second guide rod and the connecting plate upward. The connecting plate drives the blocking rod upward to completely block the flywheel casting in front. If there is a grinding operation in the working area, the flywheel casting will be blocked at the grinding inlet, and the subsequent workpieces will continue to be conveyed to the second baffle cylinder. When the blocking rod moves up to the highest position, the linkage arm above the blocking rod also starts to move up. The upward movement of the linkage arm drives the connecting slider, and then the flipping arm rotates around the connecting slider. The rotation of the flipping arm drives the downward swinging arm to swing downward, so that the workpiece retaining cylinder flips to the rear of the workpiece. The workpiece retaining cylinder is located behind the flywheel casting, avoiding the subsequent flywheel castings from stacking on the previous workpiece. In this way, while realizing the baffle of the rear workpieces when grinding the workpieces in the working area, it prevents the next workpiece from stacking with the subsequent workpieces, ensuring that the rear flywheel castings can be effectively blocked during the grinding operation in the working area, and at the same time avoiding the blockage caused by stacking, and ensuring the continuity and smoothness of the production process;

[0020] 2. In the present invention, through the specification adjustment mechanism provided, if it is necessary to adjust the position between the two guide plates according to the flywheel casting to be ground, the operator rotates the handwheel ring. The handwheel ring transmits the rotation action to the first lead screw sleeve and the second lead screw sleeve through the handwheel transmission shaft. When the handwheel transmission shaft rotates, the first lead screw sleeve and the second lead screw sleeve rotate simultaneously. However, due to the opposite thread directions, they drive the linear sliders to move in opposite directions. The linear sliders are threadedly connected to the first lead screw sleeve and the second lead screw sleeve. As the lead screw sleeves rotate, the two linear sliders move left and right along the feeding frame. The upper ends of the two linear sliders are fixedly connected with guide plates. As the linear sliders move, the positions of the guide plates are also adjusted accordingly, so as to change the position and spacing of the flywheel casting to be ground to adapt to flywheel castings of different specifications. Through the cooperation of the handwheel ring, the lead screw sleeve and the linear slider, the position of the guide plate can be quickly and accurately adjusted to adapt to flywheel castings of different specifications, improving the flexibility and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front three-dimensional structural schematic diagram of an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0022] Figure 2 is a top three-dimensional structural schematic diagram of an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0023] Figure 3Side sectional structure schematic diagram of an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0024] Figure 4 An automatic feeding device for grinding flywheel castings proposed by the present invention Figure 3 Enlarged view of A in

[0025] Figure 5 Structure schematic diagram of the specification adjustment mechanism in an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0026] Figure 6 Front sectional structure schematic diagram of an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0027] Figure 7 Structure schematic diagram of the lower half of the workpiece blocking mechanism in an automatic feeding device for grinding flywheel castings proposed by the present invention;

[0028] Figure 8 Structure schematic diagram of the overall workpiece blocking mechanism in an automatic feeding device for grinding flywheel castings proposed by the present invention.

[0029] Legend description:

[0030] 1. Feeding frame; 2. Workpiece blocking mechanism; 201. Cylinder; 202. First guiding rod; 203. Connecting plate; 204. Blocking rod; 205. Protective sleeve; 206. Linkage arm; 207. Limit sliding rail; 208. Flipping arm; 209. Lower moving swing arm; 210. Workpiece blocking cylinder; 211. Reset torsion spring; 212. Spacing adjustment hole; 213. Second guiding rod; 214. Connecting slider; 3. Specification adjustment mechanism; 301. Handwheel ring; 302. First lead screw sleeve; 303. Second lead screw sleeve; 304. Linear slider; 305. Deflector; 306. Handwheel transmission shaft; 4. Flywheel casting to be ground; 5. Installation and conveying mechanism; 501. Driving motor; 502. Conveying roller; 503. Driving sprocket; 504. Driving chain; 505. Driving sprocket; 506. Driving chain; 6. Position sensor. Specific implementation manners

[0031] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-8 , the present invention provides two technical solutions, specifically including the following embodiments:

[0033] Example 1:

[0034] An automatic feeding device for grinding a flywheel casting, comprising: a feeding frame 1; the front end of the feeding frame 1 is used to set the equipment position in the grinding operation area of the flywheel casting, a workpiece baffle mechanism 2; the number of the workpiece baffle mechanisms 2 is set to two, and the two workpiece baffle mechanisms 2 are respectively arranged under the front end and the middle of the feeding frame 1. The front workpiece baffle mechanism 2 is used to trigger the stacking at the rear while blocking the workpiece in front. The workpiece baffle mechanism 2 includes a cylinder 201, a first guide rod 202, a connecting plate 203, a blocking rod 204, a linkage arm 206, a limit slide rail 207, a turning arm 208, a downward moving swing arm 209, a workpiece blocking cylinder 210 and a return torsion spring 211. The cylinder 201 is arranged at the bottom of the feeding frame 1, and the fixed end of the cylinder 201 is fixedly connected with the feeding frame 1. The free end of the cylinder 201 is rotatably connected with a first guide rod 202. The end of the first guide rod 202 far from the cylinder 201 is rotatably connected with a second guide rod 213. The end of the second guide rod 213 far from the first guide rod 202 is fixedly connected with a connecting plate 203. Above the connecting plate 203, there are two blocking rods 204. Above the two blocking rods 204, there are linkage arms 206. The inner sides of the two linkage arms 206 are both slidably connected with connecting sliders 214. The outer sides of the two connecting sliders 214 are both rotatably connected with turning arms 208. The ends of the two turning arms 208 far from the corresponding connecting sliders 214 are both rotatably connected with downward moving swing arms 209. The inner sides of the ends of the two downward moving swing arms 209 far from the corresponding turning arms 208 are both fixedly connected with workpiece blocking cylinders 210. A torsion spring is arranged at the rotational connection between the turning arm 208 and the connecting slider 214. The linkage arm 206 is slidably connected inside the limit slide rail 207. The limit slide rail 207 is fixedly connected inside the flow guiding plate 305. A protective sleeve 205 is sleeved on the outer side of the second guide rod 213. A plurality of spacing adjustment holes 212 are arranged on the upper surface of the connecting plate 203. The blocking rod 204 is threadedly connected with the connecting plate 203 through the spacing adjustment hole 212. A position sensor 6 is arranged inside the front end of the feeding frame 1. The position sensor 6 is electrically connected with the cylinder 201. The position sensor 6 is a diffuse reflection type sensor, used to detect the flywheel casting 4 to be ground and the mechanical position, and execute the action of the workpiece baffle mechanism 2 by receiving the sensor signal.

[0035] During operation, the flywheel casting 4 to be polished is conveyed to the polishing inlet by the rear conveyor line. The workpiece sensor detects the workpiece and sends a signal to the cylinder 201. The cylinder 201 extends, pushing the first guide rod 202, the second guide rod 213 and the connecting plate 203 upward. The connecting plate 203 drives the blocking rod 204 upward to completely block the flywheel casting in front. If there is a polishing operation in the working area, the flywheel casting will be blocked at the polishing inlet, and the subsequent workpieces will continue to be conveyed to the second material blocking cylinder 201. When the blocking rod 204 moves up to the highest position, the linkage arm 206 above the blocking rod 204 also starts to move up. The upward movement of the linkage arm 206 drives the connecting slider 214, and then the flipping arm 208 rotates around the connecting slider 214. The rotation of the flipping arm 208 drives the downward swinging arm 209 to swing downward, so that the workpiece retaining cylinder 210 flips to the rear of the workpiece. The workpiece retaining cylinder 210 is located behind the flywheel casting, preventing the subsequent flywheel castings from stacking on the previous workpiece. In this way, while realizing the blocking of the rear workpieces during the polishing of the workpieces in the working area, it also prevents the next workpiece from stacking with the subsequent workpieces, ensuring that the rear flywheel castings can be effectively blocked during the polishing operation in the working area, while avoiding the blockage caused by stacking, and guaranteeing the continuity and smoothness of the production process.

[0036] Embodiment 2:

[0037] On the basis of Embodiment 1, it further includes a specification adjustment mechanism 3. The specification adjustment mechanism 3 includes a handwheel ring 301, a lead screw sleeve 301, a lead screw sleeve 303, a linear slider 304, a deflector 305, and a handwheel transmission shaft 306. The handwheel transmission shaft 306 is arranged below the middle of the feeding frame 1 and is rotatably connected to the feeding frame 1. Lead screw sleeves 302 and 303 are respectively fixedly connected to the outer sides of the left and right ends of the handwheel transmission shaft 306. The thread directions on the outer surfaces of the lead screw sleeve 302 and the lead screw sleeve 303 are opposite. Linear sliders 304 are threadedly connected to the outer sides of the lead screw sleeve 302 and the lead screw sleeve 303. Deflectors 305 are fixedly connected to the upper ends of the two linear sliders 304. One end of the handwheel transmission shaft 306 is drivingly connected to the handwheel ring 301. When it is necessary to adjust the position between the two deflectors 305 according to the flywheel casting 4 to be polished, the operator rotates the handwheel ring 301. The handwheel ring 301 transmits the rotation action to the lead screw sleeve 302 and the lead screw sleeve 303 through the handwheel transmission shaft 306. When the handwheel transmission shaft 306 rotates, the lead screw sleeve 302 and the lead screw sleeve 303 rotate simultaneously. However, due to the opposite thread directions, they will drive the linear sliders 304 to move in opposite directions. The linear sliders 304 are threadedly connected to the lead screw sleeve 302 and the lead screw sleeve 303. As the lead screw sleeves rotate, the two linear sliders 304 move left and right along the feeding frame 1. Deflectors 305 are fixedly connected to the upper ends of the two linear sliders 304. As the linear sliders 304 move, the positions of the deflectors 305 are also adjusted accordingly, thereby changing the position and spacing of the flywheel casting 4 to be polished to adapt to flywheel castings of different specifications. It further includes an installation and conveying mechanism 5. The installation and conveying mechanism 5 includes a driving motor 501, conveying rollers 502, driving sprockets 503, driving chains 504, transmission sprockets 505, and transmission chains 506. The driving motor 501 is fixedly connected to the feeding frame 1. The output end of the driving motor 501 is drivingly connected to a driving sprocket 503. A driving chain 504 is meshingly connected to the outer side of the driving sprocket 503. The number of the conveying rollers 502 is set to be multiple. The multiple conveying rollers 502 are horizontally distributed inside the feeding frame 1. Each conveying roller 502 is rotatably connected to the feeding frame 1. One end of each conveying roller 502 penetrates through the feeding frame 1, and transmission sprockets 505 are fixedly connected to the outer sides of the ends of the conveying rollers 502 that penetrate through the feeding frame 1. Transmission chains 506 are sleeved on the outer sides of the multiple transmission sprockets 505, and each transmission sprocket 505 is meshingly connected to the transmission chain 506. The outer sides of the middle two transmission sprockets 505 are sleeved inside the driving chain 504 and are meshingly connected to the driving chain 504. A plurality of flywheel castings 4 to be polished are arranged between the two deflectors 305. When the driving motor 501 is started, its output end drives the driving sprocket 503 through transmission connection. As the driving motor 501 operates, the driving sprocket 503 drives the driving chain 504 to perform a cyclic motion. When the driving chain 504 moves,It will directly drive the rotation of these two intermediate drive sprockets 505. The rotation of the two intermediate drive sprockets 505 will be further transmitted to other drive sprockets 505 to achieve the synchronous rotation of all conveying rollers 502. With the synchronous rotation of the conveying rollers 502, the flywheel casting moves forward along the feeding frame 1 under the drive of the conveying rollers 502 until it reaches the designated grinding position. If there is an operation in the working area, the flywheel casting 4 to be ground will be blocked at the grinding inlet. Subsequently, the flywheel casting 4 to be ground continues to be conveyed to the position of the middle workpiece blocking mechanism 2. The drive motor 501 stops rotating. After the operation in the working area is completed, the workpiece blocking mechanism 2 descends, pushing the flywheel casting 4 to be ground at the first station into the working area for positioning, completing the preliminary positioning work. The drive motor 501 starts, transferring the flywheel casting 4 to be ground to the previous station. Such steps are cycled to complete batch operations.

[0038] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the application shall be included in the protection scope of the present application.

Claims

1. An automatic feeding device for grinding flywheel castings, characterized in that: include: Feeding frame (1); A workpiece blocking mechanism (2); the number of the workpiece blocking mechanisms (2) is set to two, and the two workpiece blocking mechanisms (2) are respectively arranged at the front end and the lower middle part of the feeding frame (1); the front end workpiece blocking mechanism (2) is used to block the workpiece in front and trigger the stacking at the rear at the same time; the workpiece blocking mechanism (2) comprises a cylinder (201), a guide rod (202), a connecting plate (203), a blocking rod (204), a linkage arm (206), a limit slide rail (207), a flip arm (208), a downward swing arm (209), a workpiece blocking cylinder (210) and a reset torsion spring (211); the cylinder (201) is arranged at the bottom of the feeding frame (1), and the fixed end of the cylinder (201) is fixedly connected to the feeding frame (1), and the free end of the cylinder (201) is rotatably connected to the guide rod (202); One end of the guide rod 1 (202) away from the cylinder (201) is rotatably connected to the guide rod 2 (213), and one end of the guide rod 2 (213) away from the guide rod 1 (202) is fixedly connected to the connecting plate (203), and two blocking rods (204) are arranged above the connecting plate (203), and linkage arms (206) are arranged above the two blocking rods (204), and the inner sides of the two linkage arms (206) are slidably connected to connecting sliders (214), and the outer sides of the two connecting sliders (214) are rotatably connected to flip arms (208), and the ends of the two flip arms (208) away from the corresponding connecting sliders (214) are rotatably connected to downward swing arms (209), and the inner sides of the ends of the two downward swing arms (209) away from the corresponding flip arms (208) are fixedly connected to workpiece blocking cylinders (210).

2. The automatic feeding device for grinding flywheel castings according to claim 1, characterized in that: A torsion spring is provided at the rotational connection between the flip arm (208) and the connecting slider (214); the linkage arm (206) is slidably connected to the inner side of the limiting slide rail (207); the limiting slide rail (207) is fixedly connected to the inner side of the guide plate (305); and a protective sleeve (205) is provided on the outer side of the second guide rod (213).

3. The automatic feeding device for grinding flywheel castings according to claim 1, characterized in that: The invention also comprises a specification adjustment mechanism (3), wherein the specification adjustment mechanism (3) comprises a hand wheel ring (301), a lead screw sleeve 1 (302), a lead screw sleeve 2 (303), a linear slider (304), a guide plate (305), and a hand wheel transmission shaft (306). The hand wheel transmission shaft (306) is arranged at the lower middle part of the feeding frame (1) and is rotatably connected to the feeding frame (1). The outer sides of the left and right ends of the hand wheel transmission shaft (306) are respectively fixedly connected with the lead screw sleeve 1 (302) and the lead screw sleeve 2 (303). The thread directions of the outer surfaces of the lead screw sleeve 1 (302) and the lead screw sleeve 2 (303) are opposite.

4. The automatic feeding device for grinding flywheel castings according to claim 3 is characterized in that: The outer sides of the first screw sleeve (302) and the second screw sleeve (303) are both threadedly connected with a linear slider (304), the upper ends of the two linear sliders (304) are fixedly connected with a guide plate (305), and one end of the handwheel transmission shaft (306) is transmission-connected with a handwheel ring (301).

5. The automatic feeding device for grinding flywheel castings according to claim 1, characterized in that: The invention also comprises a conveying installation mechanism (5), wherein the conveying installation mechanism (5) comprises a driving motor (501), a conveying roller (502), a driving sprocket (503), a driving chain (504), a transmission sprocket (505) and a transmission chain (506), wherein the driving motor (501) is fixedly connected to the feeding frame (1), the output end of the driving motor (501) is drivingly connected to the driving sprocket (503), and the outer side of the driving sprocket (503) is meshingly connected to the driving chain (504).

6. The automatic feeding device for grinding flywheel castings according to claim 5, characterized in that: The number of the conveying rollers (502) is set to be multiple, and the multiple conveying rollers (502) are laterally distributed inside the feeding frame (1), each of the conveying rollers (502) is rotatably connected to the feeding frame (1), one end of each of the conveying rollers (502) passes through the feeding frame (1), and the outer side of the end of the conveying roller (502) passing through the feeding frame (1) is fixedly connected with a transmission sprocket (505), and the outer sides of the multiple transmission sprockets (505) are sleeved with transmission chains (506), and each of the transmission sprockets (505) is meshedly connected with the transmission chain (506).

7. The automatic feeding device for grinding flywheel castings according to claim 5, characterized in that: The outer sides of the two middle transmission sprockets (505) are sleeved on the inner sides of the driving chain (504) and meshedly connected with the driving chain (504).

8. The automatic feeding device for grinding flywheel castings according to claim 1, characterized in that: The upper surface of the connecting plate (203) is provided with a plurality of spacing adjustment holes (212), and the blocking rod (204) is threadedly connected to the connecting plate (203) through the spacing adjustment holes (212).

9. The automatic feeding device for grinding flywheel castings according to claim 1, characterized in that: A position sensor (6) is provided on the inner side of the front end of the feeding frame (1), and the position sensor (6) is electrically connected to the cylinder (201).

10. The automatic feeding device for grinding flywheel castings according to claim 3, characterized in that: A plurality of flywheel castings (4) to be polished are arranged between the two guide plates (305).

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