A grinding device for automobile parts production

Abstract

The invention discloses a grinding device for automobile parts production, and relates to the technical field of automobile parts production. The grinding device comprises a bottom plate and a grinding mechanism, wherein an adjustment plate is arranged on the bottom plate, and a grinding mechanism is arranged on the adjustment plate. The grinding device also comprises a rotating unit, and the rotating unit comprises a supporting block and an arc block. The supporting block is placed on the adjusting plate, and an annular groove for placing a piston ring is provided on the supporting block. A plurality of arc surface grooves are evenly provided on the supporting block in the annular groove along its circumferential direction, and an arc block is slidably installed in each of the arc surface grooves, and each of the arc blocks synchronously drives the piston ring to rotate in the annular groove to adjust the grinding position of the piston ring; when the piston ring is being polished, the piston ring is placed in the annular groove, and the piston ring is driven to rotate in the annular groove by the arc block to adjust the grinding position of the piston ring, thereby improving the polishing accuracy of the piston ring.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production, in particular to a grinding device for automobile parts production. Background Art

[0002] As is known, the piston ring is a metal ring embedded in the groove of the piston. The piston ring is a metal elastic ring with a large outward expansion deformation. The piston ring is the core component inside the fuel engine. The piston ring, cylinder, piston and cylinder wall together complete the sealing of the fuel gas. The piston ring is made of a blank using a casting process. The surface of the piston ring cast from the blank has burrs. It is necessary to use grinding equipment to grind the piston ring blank to ensure that the surface of the piston ring is smooth and reduce the friction and wear of the piston ring.

[0003] The piston ring is a precision component in the engine. When the piston ring is produced, the control of its end gap (the end gap refers to the gap between the two ends of the piston ring) determines the sealing of the cylinder. When the piston moves up and down in the cylinder, the piston ring can seal the cylinder to prevent gas leakage. If the end gap of the piston ring is too large, the gas will leak out from the gap, resulting in a decrease in engine power and increased fuel consumption. The end gap of the piston ring can also reduce the friction between the piston ring and the cylinder. When the piston moves up and down in the cylinder, the piston ring will rub against the cylinder wall. If the end gap of the piston ring is too small, it will cause the piston ring to get stuck or even burn, damaging the engine. The end gap of the piston ring can also promote the heat dissipation of the engine. When the piston moves up and down in the cylinder, the piston ring will rub against the cylinder wall, and the friction will generate heat. If the end gap of the piston ring is too small, the heat generated by the friction cannot be dissipated, damaging the engine. Therefore, the end gap of the piston ring needs to be precisely polished to ensure the stability of the piston ring sealing the cylinder.

[0004] The piston ring grinding equipment includes a mounting frame, on which a supporting block for placing a piston ring, a precision screw cross slide and a grinding mechanism are provided. The mounting frame is provided with a precision screw cross slide (the precision screw cross slide is a frame body capable of cross motion, and the movement of the device on the slide is driven by the screw), and a grinding mechanism is provided on the precision screw cross slide. The grinding mechanism includes a mounting plate, a motor and a grinding sheet. The mounting plate is mounted on the precision screw cross slide, and a motor is provided on the mounting plate. The output end of the motor is connected to a mounting shaft, and a grinding sheet is installed on the mounting shaft by a threaded connection. A piston groove is provided on the supporting block, and the piston groove is used to place the piston ring. A grinding groove is provided on the supporting block, and the grinding groove is used to accommodate the grinding sheet. Grinding of the piston ring end gap. When grinding the end gap of the piston ring, it is necessary to align one end of the piston ring end gap with the end of the grinding groove, and then position the piston ring on the supporting block, and drive the end of the mounting plate and the end of the mounting frame to align with each other through the precision screw cross slide (that is, the side wall of the mounting plate close to the mounting frame and the side wall of the mounting frame close to the mounting plate are aligned with each other, that is, the ends of the mounting frame and the mounting plate are in a mutually docking position), and then drive the grinding sheet to press against the other end of the piston ring end gap through the precision screw cross slide, so that the other end of the piston ring end gap and the grinding sheet are pressed against each other, and the end gap of the piston ring is polished by driving the grinding sheet through the precision screw cross slide until the end gap of the piston ring is polished.

[0005] For example, the patent with the publication number CN11754917A and the publication date of February 13, 2024, entitled "A grinding device for automobile parts production and its working method", discloses a grinding device for automobile parts production and its working method, including a vacuum cleaner, the top of which is fixedly connected to a workbench, the left side of the top of the workbench is fixedly connected to a first hydraulic telescopic rod, and the top of the first hydraulic telescopic rod is fixedly connected to a top box. By adopting the grinding device designed by the patent, automobile parts of different sizes can be clamped and fixed, and the grinding position can be automatically adjusted left and right, and automatic flipping can be achieved at the same time, without the need for manual pushing and flipping of materials by staff, which not only improves the grinding efficiency, but also ensures the personal safety of staff, and can absorb the debris generated by grinding while grinding, avoiding the trouble of subsequent treatment of the debris, and will not cause harm to other parts, and can recycle the collected debris, which brings great convenience to the processing of automobile parts.

[0006] The shortcoming of the existing technology is that, due to the high accuracy requirement of the end gap of the piston ring, the gap of the piston ring needs to be polished after the production is completed. Since one end of the piston ring end gap needs to be aligned with the end of the polishing groove each time, the existing feeding mechanism (such as: manipulator, automatic feeding equipment and other equipment capable of automatic feeding) has difficulty in aligning one end of the piston ring end gap with the end of the polishing groove when feeding the piston ring, resulting in the grinding of the piston ring gap is not accurate enough, which in turn affects the subsequent use of the piston ring. Summary of the invention

[0007] The purpose of the present invention is to provide a grinding device for automobile parts production to solve the technical problems in the related art.

[0008] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding device for automobile parts production, comprising a base plate and a grinding mechanism, the base plate is provided with an adjustment plate, the adjustment plate is provided with a grinding mechanism, and also includes a rotating unit, the rotating unit includes a supporting block and an arc block, the adjusting plate is placed with a supporting block, the supporting block is provided with an annular groove for placing a piston ring, the supporting block is provided with a plurality of arc surface grooves evenly arranged along the circumferential direction of the annular groove, each of the arc surface grooves is slidably installed with an arc block, and each of the arc blocks synchronously drives the piston ring to rotate in the annular groove to achieve the adjustment of the grinding position of the piston ring.

[0009] As mentioned above, the adjustment plate is provided with a precision screw cross slide, and the precision screw cross slide is provided with a grinding mechanism, and the grinding mechanism includes a mounting plate, and the mounting plate is mounted on the slide body on the precision screw cross slide, and a first driving member is arranged on the mounting plate, and the output end of the first driving member is connected to a mounting shaft, and a grinding sheet is mounted on the mounting shaft.

[0010] As mentioned above, a grinding groove for accommodating a grinding sheet is provided on the supporting block, the grinding groove is communicated with the annular groove, and a stopper is provided at the connection position between the annular groove and the grinding groove close to one end of the first driving member.

[0011] As mentioned above, an auxiliary frame is provided on the adjustment plate, a second driving member is provided on the auxiliary frame, the output end of the second driving member is connected to a connecting plate, a connecting tube is provided on the connecting plate, a positioning frame is connected to the bottom end of the connecting tube, and a positioning groove is provided at the bottom end of the positioning frame.

[0012] As mentioned above, the positioning frame is a conical frame, and a receiving groove is provided on the same side of the positioning frame and the grinding groove.

[0013] As mentioned above, a receiving groove is provided in the supporting block, a sliding groove is opened in the middle part of the top end of the supporting block, a driven round rod is slidably installed in the sliding groove, a spring body is sleeved on the driven round rod, the top end of the spring body is connected to the side wall of the driven round rod, and the bottom end of the spring body is connected to the bottom inner wall of the sliding groove.

[0014] As mentioned above, a plurality of spiral grooves are evenly arranged on the outer wall of the driven round rod along its circumferential direction.

[0015] As mentioned above, each of the arc blocks is connected by an arc frame, and a driven ring is connected to the center of the arc frame. The driven ring is sleeved on the outer wall of the driven circular rod, and a plurality of sliding circular rods are evenly arranged on the inner wall of the driven circular ring along its circumferential direction, and each of the sliding circular rods is installed in the spiral groove in a sliding fit manner.

[0016] As mentioned above, a dust suction device is arranged on the top of the auxiliary frame, and a hose is connected to the output end of the dust suction device, and the hose is connected to the connecting pipe.

[0017] As mentioned above, an active round rod is arranged at the bottom end of the connecting pipe.

[0018] The beneficial effects of the present invention are as follows: when it is necessary to grind the end gap of the piston ring, the piston ring to be grinded is placed in the annular groove on the supporting block through the loading and unloading mechanism, and each arc block is synchronously driven to rotate to drive the piston ring to rotate in the annular groove, so as to adjust the grinding position of the piston ring, and then the piston ring is positioned by the positioning mechanism, and the piston ring is polished by the polishing mechanism to achieve precise grinding of the end gap of the piston ring, and then the positioning mechanism releases the positioning operation of the piston ring, and the polished piston ring is taken out by the loading and unloading mechanism, and then the loading and unloading mechanism places the piston ring to be polished in the annular groove again, and this is repeated to achieve continuous grinding of the piston ring, and the piston ring is driven to rotate by the synchronously driven arc blocks, which can improve the accuracy of the position of the piston ring in the annular groove, thereby improving the grinding accuracy of the piston ring. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment provided by the present invention;

[0021] Figure 2 For the present invention Figure 1A schematic cross-sectional structure diagram of a first perspective;

[0022] Figure 3 For the present invention Figure 1 A schematic cross-sectional structure diagram of a second viewing angle;

[0023] Figure 4 For the present invention Figure 2 A schematic diagram of a partially enlarged cross-sectional structure at M;

[0024] Figure 5 It is a partial cross-sectional structural schematic diagram of the motion state of the active round rod extruding the driven round rod according to the present invention;

[0025] Figure 6 It is a schematic diagram of a partial three-dimensional structure inside the supporting block of the present invention;

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the cross-sectional structure of;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the spiral groove on the driven round rod of the present invention;

[0028] Fig. 9 It is a schematic cross-sectional structure diagram of the precision screw cross slide and the grinding mechanism of the present invention;

[0029] Fig.10 For the present invention Fig. 9 A schematic diagram of a partially enlarged cross-sectional structure at location N;

[0030] Fig.11 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention;

[0031] Fig.12 A schematic diagram of a partial cross-sectional structure of a motion state of a grinding sheet when it is deflected or bent in another embodiment provided by the present invention;

[0032] Fig.13 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention;

[0033] Fig.14 A schematic diagram of the partial three-dimensional structure of a deceleration ring groove according to another embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Bottom plate; 2. Adjustment plate; 3. Support block; 4. Arc block; 5. Annular groove; 6. Arc groove; 7. Moving groove; 8. Third driving member; 9. First lead screw; 10. Clamping plate; 11. Clamping groove; 12. Clamping lead screw; 13. Precision lead screw cross slide; 14. Mounting plate; 15. First driving member; 16. Mounting shaft; 17. Grinding sheet; 18. Grinding groove; 19. Stopper; 20. Rubber block; 21. Auxiliary frame; 22. Second driving member; 2 3. Connecting plate; 24. Connecting pipe; 25. Positioning frame; 26. Dust collection equipment; 27. Hose; 28. Active round rod; 29. ​​Slide groove; 30. Driven round rod; 31. Spring body; 32. Spiral groove; 33. Driven circular ring; 34. Arc frame; 35. Sliding round rod; 36. Speed ​​reduction cylinder; 37. Speed ​​reduction ring groove; 38. Square groove; 39. Oblique rod; 40. Elastic part; 41. Auxiliary ball; 42. Arc rod; 43. Threaded groove; 44. Linear groove. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.14 The present invention is further described in detail.

[0037] An embodiment provided by the present invention relates to a grinding device for automobile parts production, comprising a base plate 1 and a grinding mechanism, wherein the base plate 1 is provided with an adjustment plate 2, and the adjustment plate 2 is provided with a grinding mechanism, and further comprising a rotating unit, wherein the rotating unit comprises a supporting block 3 and an arc block 4, wherein the supporting block 3 is placed on the adjustment plate 2, and an annular groove 5 for placing a piston ring is provided on the supporting block 3, and a plurality of arc surface grooves 6 are evenly provided on the supporting block 3 in the annular groove 5 along its circumferential direction, and an arc block 4 is slidably installed in each of the arc surface grooves 6, and each of the arc blocks 4 is synchronously driven to rotate to drive the piston ring to rotate in the annular groove 5, so as to realize the adjustment of the grinding position of the piston ring.

[0038] Specifically, the piston ring is an important automotive component. The piston ring is a circular ring with a radial end gap. The piston ring needs to be polished by a polishing device during production. The polishing device polishes the end gap of the piston ring to make the end gap of the piston ring more precise. An adjusting plate 2 is provided on the bottom plate 1. A moving groove 7 is provided on the bottom plate 1. The adjusting plate 2 is slidably installed in the moving groove 7. A third driving member 8 is provided on one side of the bottom plate 1. The output end of the third driving member 8 is connected to a first lead screw 9. The first lead screw 9 is rotatably provided in the moving groove 7, and the first lead screw 9 is threadedly connected to the adjusting plate 2. A clamping mechanism is provided on the adjusting plate 2. The clamping mechanism is used to clamp the supporting block 3. The supporting block 3 is clamped by the clamping mechanism so that the supporting block 3 is The position on the adjusting plate 2 is more stable. The clamping mechanism includes a clamping plate 10. Two clamping grooves 11 are symmetrically provided on the adjusting plate 2. A clamping plate 10 is slidably installed in each of the two clamping grooves 11. A clamping screw 12 is rotatably installed in each of the two clamping grooves 11. The two clamping screws 12 are respectively threadedly connected to the corresponding clamping plates 10. The two clamping screws 12 respectively drive the clamping plates 10 threadedly connected thereto to move, so that the two clamping plates 10 clamp and position the supporting block 3, so that the position of the supporting block 3 on the adjusting plate 2 is more stable. It is known to those skilled in the art that the rotation of the clamping screw 12 can be driven by a motor to rotate, or it can be driven by a crank to rotate the clamping screw 12, starting the third driving member 8 (third driving member 8 is a device capable of forward and reverse motion at the conveying end, preferably a motor) drives the first lead screw 9 to rotate, so that the first lead screw 9 can drive the adjustment plate 2 to perform linear reciprocating motion in the moving groove 7. A precision lead screw cross slide 13 is arranged on the adjustment plate 2. The precision lead screw cross slide 13 (the precision lead screw cross slide 13 is a frame capable of cross motion, and the device on the slide body is driven to move by the lead screw. The precision lead screw cross slide 13 is a combined slide composed of two groups of linear slides in the X-axis direction and the Y-axis direction, that is, one group of linear slides is fixed on the slider of the other group of slides, and the supporting block 3 of this embodiment can similarly perform motion in the X-axis direction and the Y-axis direction) is provided with a grinding mechanism, that is, the grinding mechanism is on the precision lead screw cross slide Under the driving action of 13, a cross motion can be performed, and the grinding mechanism can move in a direction perpendicular to the first lead screw 9 for entering the gap and in a direction parallel to the first lead screw 9 for grinding, so that the grinding mechanism can accurately grind the end gap of the piston ring. In order to improve the accuracy of the grinding mechanism for grinding the end gap of the piston ring, this embodiment is provided with a micrometer on the precision screw cross slide 13, and the grinding accuracy of the grinding mechanism for the piston ring end gap is improved by measuring with the micrometer. The grinding mechanism includes a mounting plate 14, and the mounting plate 14 is mounted on the slide body on the precision screw cross slide 13. A first driving member 15 is provided on the mounting plate 14 (the first driving member 15 is a device that can perform forward and reverse motion at the conveying end, preferably a motor).The output end of the first driving member 15 is connected to a mounting shaft 16, on which a grinding sheet 17 is mounted, a grinding groove 18 for accommodating the grinding sheet 17 is provided on the supporting block 3, the grinding groove 18 is communicated with the annular groove 5, a stopper 19 is provided at a connection position with the grinding groove 18 in the annular groove 5 near one end of the first driving member 15, the annular groove 5 is an annular groove body with the same radius as the piston ring, the annular groove 5 and the piston ring have the same shape, the gap between the stopper 19 and the grinding groove 18 is the same as the standard end gap of the piston ring, the stopper 19 and the supporting block 3 are both standard parts, the grinding groove 18 and the annular groove 5 provided on the supporting block 3 are exactly the same as the standard parts of the piston ring, that is, the grinding groove 18 and the stopper 19 on the annular groove 5 are composed of The end gap of the arc surface is exactly the same as that of the piston ring. A plurality of arc surface grooves 6 are evenly opened in the annular groove 5 on the supporting block 3 along its circumferential direction. An arc block 4 is slidably installed in each arc surface groove 6. A rubber block 20 is arranged at the top of each arc block 4. The rubber block 20 protrudes from the arc surface groove 6 and extends into the annular groove 5. It is known to those skilled in the art that the size of the supporting block 3, the annular groove 5, the grinding groove 18, the stopper 19 and other parts arranged on the supporting block 3 can be adapted according to the size of the piston ring to adapt to the grinding process of piston rings of different specifications. When it is necessary to grind the end gap of the piston ring, the piston to be polished is placed by a loading and unloading mechanism (such as a robot, an automatic loading and unloading device, etc., which can perform automatic loading). The piston ring is placed in the annular groove 5 on the supporting block 3. Since the rubber block 20 protrudes from the arc groove 6 and extends into the annular groove 5, the piston ring is supported by the arc block 4 and the rubber block 20, and each arc block 4 is synchronously driven to rotate to drive the piston ring to rotate in the annular groove 5, so as to adjust the grinding position of the piston ring, that is, each arc block 4 is connected by the arc frame 34, and a fourth driving member is provided on the supporting block 3. The arc frame 34 is connected to the output end of the fourth driving member, and the arc frame 34 is driven to rotate by the fourth driving member (the first driving member 15 is a device capable of forward and reverse motion at the conveying end, preferably a motor), and the arc frame 34 is synchronously driven to rotate each arc block 4, and the arc block 4 drives the piston ring to rotate through the rubber block 20, so that One end of the piston ring end gap is pressed against the stopper 19 in the annular groove 5, and then the piston ring is positioned by the positioning mechanism, and one end of the piston ring end gap is pressed against by the stopper 19. After the positioning of the piston ring is completed, the mounting plate 14 is driven to move by the precision screw cross slide 13, so that the end of the mounting plate 14 is aligned with the end of the supporting block 3 (that is, the side wall of the mounting plate 14 close to the supporting block 3 and the side wall of the supporting block 3 close to the mounting plate 14 are aligned with each other, that is, the ends of the supporting block 3 and the mounting plate 14 are in a mutually docking position), and then the grinding sheet 17 is driven by the precision screw cross slide 13 to press against the other end of the piston ring end gap, so that the other end of the piston ring end gap and the grinding sheet 17 are pressed against each other.The first driving member 15 is started to drive the installation shaft 16 to rotate, and the installation shaft 16 drives the grinding sheet 17 to rotate, so that the grinding sheet 17 grinds the piston ring. Through the precise measurement of the micrometer, the precision screw cross slide 13 drives the grinding sheet 17 to grind the end gap of the piston ring until the grinding sheet 17 just contacts the side wall of the grinding groove 18. The grinding of the piston ring end gap can be completed, and then the precision screw cross slide 13 drives the grinding sheet 17 and the piston ring to be separated from each other, and the positioning mechanism releases the positioning operation of the piston ring. The piston ring after grinding is taken out by the loading and unloading mechanism, and then the loading and unloading mechanism places the piston ring to be polished into the annular groove 5. This is repeated to realize the continuous grinding of the piston ring. The piston ring is driven to rotate by the synchronously driven arc block 4 and the rubber block 20, so that one end of the piston ring end gap is pressed against the stopper 19 in the annular groove 5, which can improve the accuracy of the position of the piston ring in the annular groove 5, thereby improving the grinding accuracy of the piston ring.

[0039] The shortcoming of the prior art is that, due to the high precision requirement for the end gap of the piston ring, the gap of the piston ring needs to be polished after the production is completed. Since one end of the piston ring end gap needs to be aligned with the end of the polishing groove 18 each time the polishing is performed, it is difficult for the existing feeding mechanism (such as: manipulator, automatic feeding equipment, etc. that can perform automatic feeding) to align one end of the piston ring end gap with the end of the polishing groove 18 when feeding the piston ring, which results in the grinding of the piston ring gap not being precise enough, thereby affecting the subsequent use of the piston ring.

[0040] The beneficial effect of this embodiment is that when the end gap of the piston ring needs to be polished, the piston ring to be polished is placed in the annular groove 5 on the supporting block 3 through the loading and unloading mechanism, and each arc block 4 is synchronously driven to rotate to drive the piston ring to rotate in the annular groove 5 to adjust the grinding position of the piston ring, and then the piston ring is positioned by the positioning mechanism, and the piston ring is polished by the polishing mechanism to achieve precise polishing of the end gap of the piston ring, and then the positioning mechanism releases the positioning operation of the piston ring, and the polished piston ring is taken out by the loading and unloading mechanism, and then the loading and unloading mechanism places the piston ring to be polished in the annular groove 5 again, and this is repeated to achieve continuous polishing of the piston ring. The piston ring is driven to rotate by the synchronously driven arc blocks 4, which can improve the accuracy of the position of the piston ring in the annular groove 5, thereby improving the polishing accuracy of the piston ring.

[0041] In another embodiment provided by the present invention, an auxiliary frame 21 is provided on the adjustment plate 2, a second driving member 22 is provided on the auxiliary frame 21, the output end of the second driving member 22 is connected to a connecting plate 23, a connecting tube 24 is provided on the connecting plate 23, a positioning frame 25 is connected to the bottom end of the connecting tube 24, a positioning groove is provided at the bottom end of the positioning frame 25; the positioning frame 25 is a conical frame, and a receiving groove is provided on the same side of the positioning frame 25 and the grinding groove 18.

[0042] Specifically, the positioning frame 25 is a conical structure with a hollow center. A positioning groove is provided at the bottom end of the positioning frame 25. The positioning groove is arranged along the trajectory of the bottom end of the positioning frame 25, and the positioning groove and the piston ring are adapted to each other. The positioning frame 25 and the connecting pipe 24 are threadedly connected. The size of the positioning frame 25 can be replaced according to the different specifications of the piston ring. When the piston ring and the supporting block 3 are replaced, the position of the supporting block 3 on the adjusting plate 2 is adjusted, that is, the two clamping screws 12 respectively drive the clamping plates 10 threadedly connected thereto to move, so that the two clamping plates 10 clamp and position the supporting block 3, and then adjust the position of the supporting block 3 on the adjusting plate 2, and then according to the size of the annular groove 5, the stopper 19 and the grinding groove 18 arranged on the supporting block 3, the specifications of the positioning frame 25 are replaced. When the loading and unloading mechanism places the piston ring to be ground into the annular groove 5 on the supporting block 3, the arc frame 34 synchronously drives Each arc block 4 rotates, and the arc block 4 drives the piston ring to rotate through the rubber block 20 until one end of the piston ring end gap is pressed against the stopper 19 in the annular groove 5, and then the second driving member 22 is started (the second driving member 22 is a device that can linearly reciprocate at the conveying end, preferably a cylinder or an electric push rod) to drive the connecting plate 23 to move toward one end of the supporting block 3, and the connecting plate 23 drives the connecting pipe 24 to move toward one end of the supporting block 3, and the connecting pipe 24 drives the positioning frame 25 to press against the top of the piston ring. Since a positioning groove is provided at the bottom end of the positioning frame 25, and the positioning groove and the piston ring are adapted to each other, the positioning frame 25 can stably position the piston ring to prevent the piston ring from being displaced during grinding and preventing the piston ring from deviating during grinding. In addition, a transfer groove is provided on the positioning frame 25, and when the grinding sheet 17 grinds the piston ring, the positioning frame 25 will not affect the grinding operation of the grinding sheet 17 on the piston ring.

[0043] In another embodiment provided by the present invention, a dust suction device 26 is provided at the top of the auxiliary frame 21, and a hose 27 is connected to the output end of the dust suction device 26, and the hose 27 is connected to the connecting pipe 24. Specifically, the dust suction device 26 is a device that can suck air from the suction port to absorb debris (such as a vacuum cleaner), and the hose 27 is a flexible pipe that can be retracted (such as a rubber retractable hose 27). When the second driving member 22 moves toward one end of the supporting block 3 through the connecting plate 23 connecting pipe 24, the connecting pipe 24 stretches the hose 27 so that the length of the hose 27 adapts to the linear movement of the connecting pipe 24. When the grinding sheet 17 and the piston ring are in contact for grinding. Debris will be generated, and the debris is difficult to handle. In the present embodiment, when the grinding disc 17 is grinding the piston ring, the dust collecting device 26 is started so that it can absorb the debris generated when the piston ring is grinded through the positioning frame 25 of the conical structure to prevent the debris from flying around, and the debris can be comprehensively collected and processed. At the same time, since the temperature of the grinding disc 17 increases when the grinding disc 17 is grinding the piston ring, the dust collecting device 26 generates a certain amount of air flow when inhaling air, and can cool the grinding disc 17 to a certain extent. The positioning frame 25 is a conical structure, which can, to a certain extent, block the debris generated when the piston ring is grinded, thereby improving the stability of the dust collecting device 26 in absorbing debris.

[0044] In another embodiment provided by the present invention, an active round rod 28 is provided at the bottom end of the connecting tube 24; a receiving groove is provided in the supporting block 3, a slide groove 29 is provided in the middle of the top end of the supporting block 3, a driven round rod 30 is slidably installed in the slide groove 29, a spring body 31 is sleeved on the driven round rod 30, the top end of the spring body 31 is connected to the side wall of the driven round rod 30, and the bottom end of the spring body 31 is connected to the inner wall of the bottom end of the slide groove 29. The outer wall of the driven circular rod 30 is evenly provided with a plurality of spiral grooves 32 along its circumferential direction; each of the arc blocks 4 is connected by an arc frame 34, and a driven circular ring 33 is connected to the center of the arc frame 34, and the driven circular ring 33 is sleeved on the outer wall of the driven circular rod 30, and a plurality of sliding circular rods 35 are evenly provided on the inner wall of the driven circular ring 33 along its circumferential direction, and each of the sliding circular rods 35 is installed in the spiral groove 32 in a sliding fit manner.

[0045] Specifically, when the end gap of the piston ring needs to be polished, the piston ring to be polished is placed in the annular groove 5 on the support block 3 through the loading and unloading mechanism. Since the rubber block 20 protrudes from the arc groove 6 and extends into the annular groove 5, the piston ring is supported by the arc block 4 and the rubber block 20, and the second driving member 22 is started to drive the connecting plate 23 to move toward one end of the support block 3, and the connecting plate 23 drives the connecting tube 24 to move toward one end of the support block 3, and the connecting tube 24 drives the active round rod 28 to move toward one end of the support block 3. The active round rod 28 first presses against the driven round rod 30, and the active round rod 28 pushes the driven round rod 30 to slide inward in the slide groove 29 (the active round rod 28 pushes the driven round rod 30 to move toward the adjustment plate 2, that is, the driven rod 30 slides toward the bottom end). Since a plurality of spiral grooves 32 are evenly provided on the outer wall of the driven rod 30, the bottom end of the spiral groove 32 is a thread groove 43 structure, and the top end of the spiral groove 32 is a linear groove 44, during the sliding process of the driven rod 30 toward the bottom end, the driven rod 30 drives the spiral groove 32 to slide toward the bottom end. Since a sliding rod 35 is provided in the spiral groove 32 for sliding, during the sliding process of the spiral groove 32 toward the bottom end, the sliding rod 35 slides along the track of the spiral groove 32, that is, the sliding rod 35 slides from the thread groove 43 to the linear groove 44, the driven rod 30 drives the driven ring 33 to rotate through the sliding rod 35, and the driven ring 33 synchronously drives each arc block 4 through the arc frame 34. The arc block 4 rotates in the arc groove 6, and the arc block 4 drives the piston ring to rotate through the rubber block 20, so that one end of the piston ring end gap is pressed against the stopper 19 in the annular groove 5. At the same time, the driven round rod 30 squeezes the spring body 31, so that the spring body 31 is in a compressed state. The second driving member 22 continues to drive the positioning frame 25 to move close to one end of the supporting block 3 through the connecting plate 23 and the connecting pipe 24, until the positioning frame 25 is pressed against the top of the piston ring, so that the positioning frame 25 can stably position the piston ring. When the positioning of the piston ring is completed, the precision screw cross slide 13 drives the mounting plate 14 to move, so that the end of the mounting plate 14 is aligned with the end of the supporting block 3 (that is, the mounting plate 14 is close to the supporting block 3). The side wall of one side of the block 3 and the side wall of the supporting block 3 close to the mounting plate 14 are aligned with each other, that is, the ends of the supporting block 3 and the mounting plate 14 are in a butt-jointed position), and then the grinding sheet 17 is driven by the precision screw cross slide 13 to press against the other end of the piston ring end gap, so that the other end of the piston ring end gap and the grinding sheet 17 press against each other, and the first driving member 15 is started to drive the mounting shaft 16 to rotate, and the mounting shaft 16 drives the grinding sheet 17 to rotate, so that the grinding sheet 17 grinds the piston ring, and at the same time, the dust collection device 26 is started to absorb the debris generated during the grinding of the piston ring through the positioning frame 25 of the conical structure to prevent the debris from flying around, and the debris can be comprehensively collected and processed, and the precise measurement of the micrometer is performed.The precision screw cross slide 13 drives the grinding sheet 17 to grind the end gap of the piston ring until the grinding sheet 17 just contacts the side wall of the grinding groove 18, and the grinding of the end gap of the piston ring is completed. When the positioning frame 25 positions the piston ring, the positioning frame 25 can drive the active round rod 28 to move, and the active round rod 28 drives the piston ring to rotate through the driven round rod 30 and the arc block 4, so that the placement of the piston ring is more accurate. The positioning frame 25 can also be used to position the piston ring, and the dust collection device 26 set at the top of the positioning frame 25 can be used to collect the debris generated when the piston ring is ground.

[0046] When the grinding operation of the piston ring end gap is completed, the grinding sheet 17 and the piston ring are separated from each other through the precision screw cross slide 13, and the second driving member 22 drives the positioning frame 25 to move away from the end of the supporting block 3 through the connecting plate 23 and the connecting pipe 24 until the positioning frame 25 releases the positioning operation of the piston ring. At the same time, the positioning frame 25 drives the active round rod 28 to move away from the end of the supporting block 3 until the active round rod 28 and the driven round rod 30 are separated from each other. Under the rebound action of the spring body 31, the spring body 31 brings The driven rod 30 slides in the slide groove 29 toward the outside thereof (the driven rod 30 slides toward the end away from the adjusting plate 2, that is, the driven rod 30 slides toward the top). Since a plurality of spiral grooves 32 are evenly provided on the outer wall of the driven rod 30, the bottom end of the spiral groove 32 is a threaded groove 43 structure, and the top end of the spiral groove 32 is a linear groove 44. In the process of the driven rod 30 sliding toward the top, the driven rod 30 drives the spiral groove 32 to slide toward the top. Since a sliding rod 35 is provided in the spiral groove 32, the spiral groove 32 is moved to the top. In the process of sliding toward the top, the sliding rod 35 slides along the track of the spiral groove 32, that is, the sliding rod 35 slides from the linear groove 44 to the spiral groove 43, and the driven rod 30 drives the driven ring 33 to rotate through the sliding rod 35. The driven ring 33 synchronously drives each arc block 4 to rotate in the arc groove 6 through the arc frame 34, and the arc block 4 drives the rubber block 20 to rotate, so that the arc block 4 and the rubber block 20 slide to the initial position, so that the arc block 4 and the rubber block 20 can drive the piston ring to the stopper 19 next time. The end is rotated to facilitate the next grinding of the piston ring. The polished piston ring is taken out through the loading and unloading mechanism, and then the loading and unloading mechanism places the piston ring to be polished into the annular groove 5. This is repeated to achieve continuous grinding of the piston ring. The piston ring is driven to rotate by the synchronously driven arc block 4 and the rubber block 20, so that one end of the piston ring end gap is pressed against the stopper 19 in the annular groove 5, which can improve the accuracy of the position of the piston ring in the annular groove 5, thereby improving the grinding accuracy of the piston ring.

[0047] In another embodiment provided by the present invention, a deceleration cylinder 36 is provided on the mounting plate 14, and the deceleration cylinder 36 surrounds the first driving member 15, that is, the first driving member 15 is located inside the deceleration cylinder 36, and the center of the deceleration cylinder 36 coincides with the center of the mounting shaft 16. A deceleration ring groove 37 is provided on the annular end surface of the deceleration cylinder 36 away from the mounting plate 14, and the annular inner wall at the bottom of the deceleration ring groove 37 is a wavy ring structure, that is, the inner wall of the deceleration ring groove 37 is an annular groove body connected by various arc surfaces that rise and fall up and down, and two square grooves 38 are symmetrically provided on the outer wall of the mounting shaft 16, and an inclined rod 39 is slidably installed in each of the two square grooves 38, and the side walls of the two inclined rods 39 are connected to the corresponding inner walls of the square grooves 38 by an elastic member 40, and an auxiliary ball 41 is rotatably provided at the end of the inclined rod 39, and an arc rod 42 is respectively provided on the two inclined rods 39, and the two arc rods 42 are rotatably installed in the deceleration ring groove 37.

[0048] Specifically, since the pressing force between the piston ring and the polishing sheet 17 is relatively large when the polishing sheet 17 is polishing the piston ring, there are only two stress points when the polishing sheet 17 is polishing the piston ring, namely, the installation connection position between the polishing sheet 17 and the installation shaft 16 and the abutment polishing position between the polishing sheet 17 and the piston ring. Moreover, the abutment polishing position between the polishing sheet 17 and the piston ring is subjected to relatively large force, which may cause the circumferential direction of the polishing sheet 17 to have a deformation tendency of deflection or bending (such as Fig.12 As shown in the figure, an elastic member 40 is provided between the inclined rod 39 and the inner wall of the square groove 38 (the elastic member 40 is a component capable of telescopic reset, preferably a spring), and the elastic member 40 provides elastic force for the inclined rod 39, so that the auxiliary ball 41 on the inclined rod 39 is pressed against the grinding sheet 17, so that the elastic member 40, the inclined rod 39 and the auxiliary ball 41 provide a certain grinding support force for the grinding sheet 17, that is, when the grinding sheet 17 is grinding the piston ring, the three force bearing points are the connection position of the grinding sheet 17 and the mounting shaft 16, the abutment position of the inclined rod 39 and the auxiliary ball 41 and the grinding sheet 17, and the installation connection position of the grinding sheet 17 and the mounting shaft 16, so that when the grinding sheet 17 is grinding the piston ring, the force on the grinding sheet 17 is more uniform, and when the piston ring needs When grinding is to be performed, the first driving member 15 is started to drive the mounting shaft 16 to rotate, and the mounting shaft 16 drives the grinding sheet 17 to rotate, so that the grinding sheet 17 grinds the piston ring. At the same time, the mounting shaft 16 drives the inclined rod 39 to rotate, and the inclined rod 39 drives the arc rod 42 to rotate in the reduction ring groove 37. When the grinding sheet 17 deflects or bends toward one end of the reduction cylinder 36, the bending position of the grinding sheet 17 pushes the ball and the inclined rod 39 to slide toward one end of the reduction cylinder 36. The inclined rod 39 performs a certain extrusion operation on the elastic member 40, so that the elastic member 40 is in a compressed state. At the same time, the inclined rod 39 drives the arc rod 42 to slide into the reduction ring groove 37. Since the annular inner wall at the bottom of the reduction ring groove 37 is a wavy annular structure (such as Fig.14 As shown in the figure, there is a certain friction and resistance between the deceleration ring groove 37 and the arc rod 42, that is, when the grinding sheet 17 is bent, the arc rod 42 will extend into the deceleration ring groove 37, so that the arc rod 42 and the trough of the deceleration ring groove 37 will abut and rub. What's more, when the arc rod 42 extends deeper into the deceleration ring groove 37, the arc rod 42 will extend into the trough position of the deceleration ring groove 37, and the peak of the deceleration ring groove 37 will produce a blocking operation on one end of the arc rod 42. At this time, the friction and resistance between the arc rod 42 and the deceleration ring groove 37 are sensed by the sensor on the deceleration cylinder 36, and the sensor sends a signal at this time, so that the first driving member 15 stops rotating. It is common knowledge in the field that the friction between the arc rod 42 and the deceleration ring groove 37 is sensed by the sensor, and it will not be repeated. The staff will replace the grinding sheet 17; when the grinding sheet 17 moves away from When one end of the reduction cylinder 36 is deflected or bent, the elastic member 40 provides elastic force for the inclined rod 39 (that is, when the grinding sheet 17 is installed, the grinding sheet 17 pushes the auxiliary ball 41 and the inclined rod 39 to a certain extent, so that the elastic member 40 is in a slightly compressed state). The inclined rod 39 is pressed against the inner wall of the end of the square groove 38 under the pushing action of the elastic member 40. At this time, the sensor senses that the inclined rod 39 and the square groove 38 are pressed against each other, and the sensor sends a signal to stop the first driving member 15 from rotating. It is common knowledge in the field that the inclined rod 39 and the square groove 38 are pressed against each other by the sensor. It is not repeated here. The staff replaces the grinding sheet 17. Through the sliding of the inclined rod 39 in the square groove 38 and the friction between the arc rod 42 and the reduction ring groove 37, the working condition of the grinding sheet 17 can be known in time, thereby improving the stability of the grinding sheet 17 in grinding the piston ring.

[0049] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grinding device for automobile parts production, comprising a base plate and a grinding mechanism, wherein the base plate is provided with an adjustment plate, and the adjustment plate is provided with a grinding mechanism, characterized in that: It also includes a rotating unit, which includes a supporting block and an arc block. The supporting block is placed on the adjustment plate, and an annular groove for placing a piston ring is provided on the supporting block. A plurality of arc surface grooves are evenly provided on the supporting block in the annular groove along its circumferential direction, and an arc block is slidably installed in each of the arc surface grooves. Each of the arc blocks synchronously drives the piston ring to rotate in the annular groove to adjust the grinding position of the piston ring. The supporting block is provided with a receiving groove, a slide groove is provided in the middle of the top of the supporting block, a driven round rod is slidably installed in the slide groove, a spring body is sleeved on the driven round rod, the top end of the spring body is connected to the side wall of the driven round rod, and the bottom end of the spring body is connected to the inner wall of the bottom end of the slide groove; The outer wall of the driven round rod is provided with a plurality of spiral grooves evenly arranged along its circumferential direction; Each of the arc blocks is connected by an arc frame, and a driven ring is connected to the center of the arc frame. The driven ring is sleeved on the outer wall of the driven circular rod. A plurality of sliding circular rods are evenly arranged on the inner wall of the driven circular ring along its circumferential direction, and each of the sliding circular rods is installed in the spiral groove in a sliding fit manner.

2. A grinding device for automobile parts production according to claim 1, characterized in that: A precision screw cross slide is arranged on the adjustment plate, a grinding mechanism is arranged on the precision screw cross slide, the grinding mechanism comprises a mounting plate, the mounting plate is mounted on the slide body on the precision screw cross slide, a first driving member is arranged on the mounting plate, an output end of the first driving member is connected to a mounting shaft, and a grinding sheet is mounted on the mounting shaft.

3. A grinding device for automobile parts production according to claim 2, characterized in that: The supporting block is provided with a grinding groove for accommodating a grinding sheet, the grinding groove is communicated with the annular groove, and a stopper is provided at a connection position between the annular groove and the grinding groove close to one end of the first driving member.

4. A grinding device for automobile parts production according to claim 3, characterized in that: An auxiliary frame is arranged on the adjustment plate, a second driving member is arranged on the auxiliary frame, an output end of the second driving member is connected with a connecting plate, a connecting pipe is arranged on the connecting plate, a positioning frame is connected to the bottom end of the connecting pipe, and a positioning groove is provided at the bottom end of the positioning frame.

5. A grinding device for automobile parts production according to claim 4, characterized in that: The positioning frame is a conical frame, and a receiving groove is arranged on the same side of the positioning frame and the grinding groove.

6. A grinding device for automobile parts production according to claim 4, characterized in that: A dust suction device is arranged on the top of the auxiliary frame, and a hose is connected to the output end of the dust suction device, and the hose is connected to the connecting pipe.

7. A grinding device for automobile parts production according to claim 4, characterized in that: An active round rod is arranged at the bottom end of the connecting pipe.

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