Piston double plane sander

Abstract

The utility model discloses a piston double -plane polisher, include: frame, feeding conveying line, polishing mechanism, transfer clamping jaw mechanism, top -hold mechanism and blanking conveying line, feeding conveying line includes first support seat, is equipped with first conveying frame and first conveyer belt on first support seat, the polishing mechanism is located frame top, including millstone servo subassembly, is equipped with double millstone subassembly in millstone servo subassembly top, the transfer clamping jaw mechanism is located frame top, including transfer clamping jaw servo subassembly, is equipped with horizontal shift module in transfer clamping jaw servo subassembly top, is equipped with transfer clamping jaw module in horizontal shift module top, top -hold mechanism is located polishing mechanism top, including elevating servo subassembly, is equipped with polishing clamping jaw subassembly on elevating servo subassembly, the blanking conveying line includes second support seat, is equipped with second conveying frame and second conveyer belt on second support seat. The utility model has solved the technical problem of low production efficiency, insufficient coordination and lack of effective workpiece conveying positioning mechanism in the existing polishing equipment.

Description

Technical Field

[0001] This utility model relates to the field of piston processing technology, specifically to a piston double-plane grinding machine. Background Technology

[0002] In the field of piston machining, the accuracy of the upper and lower planes of the piston directly affects the assembly quality and operating performance of the engine. Therefore, the efficiency and accuracy requirements of its surface grinding process are high.

[0003] Traditional piston surface grinding often employs single-disc equipment in a step-by-step process, requiring manual or additional mechanical workpiece rotation to complete dual-plane grinding. This results in cumbersome procedures, large positioning errors, and low production efficiency. While some automated grinding equipment integrates processes, it generally suffers from complex structures, difficult debugging and maintenance, and a lack of effective workpiece transport and positioning mechanisms. This makes it susceptible to decreased grinding accuracy due to workpiece inertial displacement or operational errors, potentially leading to equipment damage or safety accidents. Furthermore, existing equipment suffers from insufficient coordination between the grinding disc drive and workpiece clamping mechanism, making it difficult to balance grinding efficiency and surface finish, thus failing to meet the demands of high-precision piston mass production. Therefore, developing a highly integrated, precisely positioned, safe, and efficient dual-plane grinding device has become an urgent need in the industry. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a piston double-plane grinding machine to solve the technical problems of low production efficiency, insufficient coordination and lack of effective workpiece conveying and positioning mechanism in the existing piston plane grinding equipment.

[0005] To solve at least one of the above problems, the technical solution adopted by this utility model is as follows: A piston-driven dual-plane grinder, comprising: The machine base is equipped with an outer cover profile, and the outer cover profile is fitted with a transparent sealing plate. The transparent sealing plate has a feed inlet and a discharge outlet. The feeding conveyor line is connected to the feed inlet and includes a first support base. The first support base is provided with a first conveyor frame and a first conveyor belt. The end of the first conveyor frame near the feed inlet is provided with a baffle plate and a first sensing mechanism. The grinding mechanism is located on the top of the machine base and includes a grinding disc servo assembly. A double grinding disc assembly is provided on the top of the grinding disc servo assembly. The double grinding disc assembly moves back and forth laterally under the drive of the grinding disc servo assembly. A transfer gripper mechanism is located on the top of the machine base and includes a transfer gripper servo assembly. A transverse movement module is located on the top of the transfer gripper servo assembly, and a transfer gripper module is located on the top of the transverse movement module. The top holding mechanism is located above the grinding mechanism, including a lifting servo component, on which a grinding gripper component is mounted; The material feeding conveyor line is connected to the discharge port and includes a second support base. The second support base is equipped with a second conveyor frame and a second conveyor belt. The end of the second conveyor frame near the discharge port is equipped with a second sensing mechanism.

[0006] Preferably, the grinding wheel servo assembly includes a first grinding wheel base plate, a first linear guide rail is provided on the first grinding wheel base plate, and a first slide plate is slidably connected to the first linear guide rail via a slider; A first motor is mounted on the base plate of the first grinding disc. The output end of the first motor is connected to a first lead screw via a coupling. A lead screw seat that is threadedly connected to the first lead screw is provided at the bottom of the first slide plate.

[0007] Preferably, the dual grinding disc assembly includes a grinding disc base mounted on the top of the first slide plate. Both ends of the top of the grinding disc base are provided with rotary bearing seats. A rotary shaft is rotatably connected inside the rotary bearing seats. A synchronous pulley is threaded on the rotary shaft. The synchronous pulleys are connected to each other by belt drive. A grinding wheel fixing turntable is connected to the top of the rotating shaft, and a grinding stone is installed on the grinding wheel fixing turntable through a grinding wheel clamping ring; One of the rotating shafts has a geared motor connected to its bottom via a coupling, which drives a synchronous pulley to rotate.

[0008] Preferably, the transfer gripper servo assembly includes a second grinding disc base plate, a second linear guide rail is provided on the second grinding disc base plate, and a second slide plate is slidably connected to the second linear guide rail via a slider; A second motor is mounted on the base plate of the second grinding disc. The output end of the second motor is connected to a second lead screw via a coupling. A lead screw seat that is threadedly connected to the second lead screw is provided at the bottom of the second slide plate.

[0009] Preferably, the transverse module includes a transverse mounting plate installed on the top of the second slide plate, a third linear guide rail is provided on the top of the transverse mounting plate, a transverse slide plate is slidably connected to the third linear guide rail via a slider, and a lead screw seat is provided at the bottom of the transverse slide plate, with a third lead screw threadedly connected to the lead screw seat; One end of the third lead screw is connected to the third motor via a coupling, and the other end is mounted on the transverse mounting plate via a bearing housing.

[0010] Preferably, the transfer gripper module includes a module moving plate mounted on the top of the transverse sliding plate. A fourth linear guide rail is provided on one side of the module moving plate. A first lifting mounting plate is slidably connected to the fourth linear guide rail via a slider. The first moving plate is connected to the front of the first lifting mounting plate, and a lead screw seat is connected to the back. A fourth lead screw is threadedly connected to the lead screw seat. One end of the fourth lead screw is connected to the fourth motor via a coupling, and the other end is mounted on the module moving plate via a bearing seat. The first movable plate is provided with multiple gripper mounting plates. Each gripper mounting plate is equipped with a first gripper cylinder at its bottom. The output end of the first gripper cylinder is connected to a first piston gripper. A first nylon gripper block is provided on the gripping surface of the first piston gripper. The first movable plate is also provided with a rotary cylinder mounting plate, and a rotary cylinder is mounted on the front of the rotary cylinder mounting plate; the output end of the rotary cylinder is connected to the rotary plate, and a first gripper cylinder is mounted on the front of the rotary plate; the output end of the first gripper cylinder is connected to a first piston gripper, and a first nylon gripper block is provided on the gripping surface of the first piston gripper.

[0011] Preferably, the lifting servo assembly includes a module support base installed at the end of the first grinding disc base plate. A servo support square tube is provided on the top of the module support base. A fifth linear guide is provided on one side of the servo support square tube. A second lifting mounting plate is slidably connected to the fifth linear guide via a slider. A second moving plate is connected to the front of the second lifting mounting plate, and a lead screw seat is connected to the back. A fifth lead screw is threadedly connected to the lead screw seat. One end of the fifth lead screw is connected to the fifth motor via a coupling, and the other end is mounted on the servo support square tube via a bearing housing.

[0012] Preferably, the grinding gripper assembly includes gripper mounting seats disposed at both ends of the second movable plate, a second gripper cylinder is mounted at the bottom of the gripper mounting seat, a second piston gripper is connected to the output end of the second gripper cylinder, and a second nylon gripper block is disposed at the end of the second piston gripper.

[0013] Preferably, both the first sensing mechanism and the second sensing mechanism include a transmitter and a receiver, which are respectively mounted on both sides of the first conveyor frame and the second conveyor frame via brackets.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The dual grinding disc assembly and synchronous transmission structure can continuously complete piston double-plane grinding. Combined with the automatic transfer of the transfer gripper mechanism and the 180° flipping function driven by the rotary cylinder, the workpiece double-sided processing can be quickly connected, greatly shortening the process time and improving the efficiency of mass production.

[0015] (2) The grinding gripper assembly ensures the stability of the workpiece during the grinding process by using an internal pressing method (the second nylon gripper block extends into the workpiece and presses against the inner surface), reducing clamping deformation and improving the surface machining accuracy and surface finish.

[0016] (3) The feeding conveyor line, the transfer gripper mechanism and the unloading conveyor line form a closed loop process. The workpiece is accurately positioned by the sensing mechanism and the baffle plate. The outer cover profile and the transparent sealing plate form a closed processing space. The workpiece is transferred only through the inlet and outlet, preventing grinding debris from splashing and mechanical parts from being exposed, and reducing the risk of work injury to the operator.

[0017] (4) The core components such as the grinding disc assembly and the gripper mechanism are installed independently and modularly, which facilitates quick disassembly and replacement; the servo motor and the lead screw transmission system are compactly laid out, reducing mechanical interference and reducing maintenance difficulty.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is an overall view of the piston double-plane grinder according to an embodiment of the present utility model; Figure 2 This is a structural diagram of the feeding conveyor line according to an embodiment of the present utility model; Figure 3 This is a structural diagram of the material feeding conveyor line according to an embodiment of the present utility model; Figure 4 This is a structural diagram of the grinding mechanism according to an embodiment of the present utility model; Figure 5 This is a structural diagram of the transfer gripper mechanism according to an embodiment of the present utility model; Figure 6 This is a structural diagram of the supporting mechanism according to an embodiment of the present utility model; Figure 7 This is a structural diagram of the mechanism assembly of an embodiment of the present utility model.

[0020] Reference numerals: 1. Base; 2. Outer casing profile; 3. Transparent window / door; 4. Transparent sealing plate; 5. Electrical cabinet; 6. Control box; 7. Connector; 8. Square tube; 9. Feeding conveyor line; 10. Discharging conveyor line; 11. First support base; 12. First conveyor frame; 13. First conveyor belt; 14. Baffle plate; 15. Bracket; 16. Piston workpiece to be ground; 17. Second support base; 18. Second conveyor frame; 19. Second conveyor belt; 20. Finished workpiece. Grinding piston workpiece; 21. First grinding disc base plate; 22. First linear guide rail; 23. Slider; 24. First slide plate; 25. First motor; 26. Coupling; 27. First lead screw; 28. Grinding disc base; 29. ​​Rotary bearing seat; 30. Synchronous pulley; 31. Belt; 32. Grinding disc fixed turntable; 33. Grinding disc clamping ring; 34. Grinding stone; 35. Grinding disc cover; 36. Gear motor; 37. Second grinding disc base plate; 38. Second linear guide rail; 39. Second slide plate; 40. Second motor; 41. Second lead screw; 42. Transverse mounting plate; 43. Third linear guide; 44. Transverse slide plate; 45. Third lead screw; 46. Module moving plate; 47. Fourth linear guide; 48. First lifting mounting plate; 49. First moving plate; 50. Fourth lead screw; 51. Fourth motor; 52. Gripper mounting plate; 53. First gripper cylinder; 54. First piston gripper; 55. First nylon gripper block 56. Rotary cylinder mounting plate; 57. Rotary cylinder; 58. Rotary plate; 59. Module support base; 60. Servo support square tube; 61. Fifth linear guide rail; 62. Second lifting mounting plate; 63. Second moving plate; 64. Fifth lead screw; 65. Fifth motor; 66. Gripper mounting base; 67. Second gripper cylinder; 68. Second piston gripper; 69. Second nylon gripper block; 70. Grinding mechanism; 71. Transfer gripper mechanism; 72. Top holding mechanism. Detailed Implementation

[0021] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0022] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0025] See Figures 1-3 , Figure 7 This utility model discloses a piston double-plane grinding machine, including: a base 1, a feeding conveyor line 9, a grinding mechanism 70, a transfer gripper mechanism 71, a top holding mechanism 72, and a discharge conveyor line 10.

[0026] The base 1 is provided with an outer cover profile 2. The front and back of the outer cover profile 2 are equipped with transparent windows 3, and the top and sides are equipped with transparent sealing plates 4. The two transparent sealing plates 4 are respectively provided with a feed port and a discharge port.

[0027] The feeding conveyor line 9 is connected to the feed inlet and includes a first support base 11. A first conveyor frame 12 is provided on the first support base 11. A first conveyor belt 13 is provided inside the first conveyor frame 12 for conveying the piston workpiece 16 to be ground. A baffle plate 14 and a first sensing mechanism are provided at the end of the first conveyor frame 12 near the feed inlet. When the first sensing mechanism senses that the piston workpiece 16 to be ground has passed, it stops the first conveyor belt 13 and prevents the piston workpiece 16 to be ground from continuing to move forward due to inertia through the baffle plate 14.

[0028] The grinding mechanism 70 is located on the top of the base 1 and inside the outer cover profile 2. It includes a grinding disc servo assembly. The top of the grinding disc servo assembly is equipped with a double grinding disc assembly for grinding the front and back sides of the piston workpiece. The double grinding disc assembly moves back and forth laterally under the drive of the grinding disc servo assembly.

[0029] The transfer gripper mechanism 71 is located on the top of the base 1 and inside the outer cover profile 2. It includes a transfer gripper servo assembly, a transverse module on the top of the transfer gripper servo assembly, and a transfer gripper module on the top of the transverse module. Driven by the transverse module, the transfer gripper module clamps the piston workpiece 16 to be ground from the feeding conveyor line 9 and moves it to below the top holding mechanism 72.

[0030] The top holding mechanism 72 is located above the grinding mechanism 70 and inside the outer cover profile 2. It includes a lifting servo component and a grinding gripper component. Driven by the lifting servo component, the grinding gripper component holds the piston workpiece 16 to be ground from the transfer gripper module and moves it to the double grinding disc assembly for grinding.

[0031] The unloading conveyor line 10 is connected to the discharge port and includes a second support base 17. A second conveyor frame 18 is provided on the second support base 17. A second conveyor belt 19 is provided inside the second conveyor frame 18 for conveying the ground piston workpiece. A second sensing mechanism is provided at the end of the second conveyor frame 18 near the discharge port. When the second sensing mechanism senses the ground piston workpiece 20, it starts the second conveyor belt 19 to convey the ground piston workpiece 20 to the next process.

[0032] Specifically, this embodiment mainly consists of six core parts: base 1, feeding conveyor line 9, grinding mechanism 70, transfer gripper mechanism 71, top holding mechanism 72, and unloading conveyor line 10. The grinding mechanism 70, transfer gripper mechanism 71, and top holding mechanism 72 are integrated into the outer cover profile 2 on the top of the base 1. The outer cover is equipped with a transparent window 3 and a sealing plate to facilitate observation and protect the internal components. The sealing plates on both sides are respectively opened with inlet and outlet ports to form a workpiece flow channel.

[0033] Feeding conveyor line 9: When the piston workpiece 16 to be ground is transported to the vicinity of the feed inlet by the first conveyor belt 13, the first sensing mechanism triggers a signal to stop the first conveyor belt 13 from running. At the same time, the baffle plate 14 prevents the workpiece from moving forward due to inertia, thus achieving precise positioning.

[0034] Transfer gripper mechanism 71: The transfer gripper servo component drives the transverse module to move the transfer gripper module to the loading position. After clamping the workpiece, the workpiece is transferred to the bottom of the top holding mechanism 72 through transverse and lifting actions.

[0035] Holding mechanism 72: The lifting servo component drives the grinding gripper assembly to descend and hold the workpiece on the transfer gripper module (by extending into the workpiece and pressing against the inner surface to achieve stable fixation). Then the transfer gripper module releases the workpiece, the grinding gripper assembly moves above the dual grinding disc assembly, and presses the workpiece onto the grinding stone 34 of one grinding disc for grinding.

[0036] Grinding mechanism 70: The grinding disc servo component drives the dual grinding disc assembly to move laterally. The dual grinding discs rotate synchronously under the transmission of the reduction motor 36 and the synchronous wheel 30. The grinding discs grind one surface of the workpiece through the grinding stone 34. The lateral movement ensures the uniformity of grinding. After single-sided grinding is completed, the grinding gripper assembly moves to the first clamping position. The transfer gripper module moves to the first clamping position to clamp and flip the workpiece so that the un-grinded surface is facing down. The grinding gripper assembly once again holds the workpiece from the transfer gripper module and presses it onto the grinding stone 34 of the other grinding disc for grinding.

[0037] Material feeding conveyor line 10: After double-sided grinding is completed, the grinding gripper assembly moves to the second clamping position, the transfer gripper module moves to the second clamping position to clamp the workpiece, and the workpiece is transferred to the feeding position of the material feeding conveyor line 10 through horizontal and vertical movements. The ground piston workpiece 20 is released, and the second sensing mechanism detects the workpiece and starts the second conveyor belt 19 to send it out from the discharge port.

[0038] See Figure 4 In one possible embodiment, the grinding wheel servo assembly includes a first grinding wheel base plate 21, a first linear guide rail 22 is provided on the first grinding wheel base plate 21, and a first slide plate 24 is slidably connected to the first linear guide rail 22 via a slider 23. A first motor 25 is installed on the first grinding disc base plate 21. The output end of the first motor 25 is connected to a first lead screw 27 through a coupling 26. A lead screw seat is provided at the bottom of the first slide plate 24 and is threadedly connected to the first lead screw 27. The first motor 25 drives the first lead screw 27 to rotate forward and backward, causing the lead screw seat to move back and forth along the first lead screw 27, thereby driving the first slide plate 24 to slide back and forth on the first linear guide rail 22.

[0039] See Figure 4 In one possible embodiment, the dual grinding disc assembly includes a grinding disc base 28 mounted on the top of the first slide plate 24. Both ends of the top of the grinding disc base 28 are provided with rotary bearing seats 29. A rotary shaft is rotatably connected inside the rotary bearing seats 29. A synchronous pulley 30 passes through the rotary shaft. The synchronous pulleys 30 are connected to each other by a belt 31. A grinding wheel fixing turntable 32 is connected to the top of the rotating shaft. A grinding wheel 34 is installed on the grinding wheel fixing turntable 32 through a grinding wheel clamping ring 33. A grinding wheel cover 35 is provided outside the grinding wheel fixing turntable 32. One of the rotating shafts is connected to a geared motor 36 via a coupling 26 at its bottom. This motor drives a synchronous pulley 30 to rotate. When the synchronous pulley 30 rotates, it drives another synchronous pulley 30 to rotate synchronously under the transmission of the belt 31, thereby achieving synchronous rotation of the grinding stones 34 at both ends of the top of the grinding disc base 28.

[0040] Specifically, after the first motor 25 starts, it drives the first lead screw 27 to rotate forward or reverse through the coupling 26. The first lead screw 27 forms a threaded transmission with the lead screw seat at the bottom of the first slide plate 24, converting the rotational motion into linear motion. At this time, the first slide plate 24 slides back and forth along the first linear guide rail 22, driving the double grinding disc assembly mounted on its top to move laterally as a whole, realizing back-and-forth grinding of the workpiece surface and improving the uniformity of grinding.

[0041] The geared motor 36 drives a rotating shaft to rotate via a coupling 26. The synchronous pulley 30 on this rotating shaft drives the synchronous pulley 30 on another rotating shaft to rotate synchronously via a belt 31, so that the rotating shafts at both ends of the grinding disc base 28 rotate at the same speed and in the same direction. The grinding disc fixed turntable 32 at the top of the rotating shaft rotates synchronously with the shaft, and the grinding stone 34 fixed by the grinding disc clamping ring 33 rotates at high speed accordingly, forming a grinding working surface.

[0042] See Figure 5 In one possible embodiment, the transfer gripper servo assembly includes a second grinding disc base plate 37, a second linear guide rail 38 is provided on the second grinding disc base plate 37, and a second slide plate 39 is slidably connected to the second linear guide rail 38 via a slider 23. A second motor 40 is installed on the second grinding disc base plate 37. The output end of the second motor 40 is connected to a second lead screw 41 through a coupling 26. A lead screw seat is provided at the bottom of the second slide plate 39 and is threadedly connected to the second lead screw 41. The second motor 40 drives the second lead screw 41 to rotate forward and backward, causing the lead screw seat to move back and forth along the second lead screw 41, thereby driving the second slide plate 39 to slide back and forth on the second linear guide rail 38.

[0043] See Figure 5 In one possible embodiment, the transverse module includes a transverse mounting plate 42 mounted on the top of the second slide plate 39, a third linear guide rail 43 is provided on the top of the transverse mounting plate 42, a transverse slide plate 44 is slidably connected to the third linear guide rail 43 via a slider 23, a lead screw seat is provided at the bottom of the transverse slide plate 44, and a third lead screw 45 is threadedly connected to the lead screw seat. One end of the third lead screw 45 is connected to the third motor via the coupling 26, and the other end is mounted on the transverse mounting plate 42 via the bearing seat. The third motor drives the third lead screw 45 to rotate forward and backward, causing the lead screw seat to move back and forth along the third lead screw 45, thereby driving the transverse slide plate 44 to slide back and forth on the third linear guide 43.

[0044] See Figure 5 In one possible embodiment, the transfer gripper module includes a module moving plate 46 mounted on the top of the transverse sliding plate 44. A fourth linear guide rail 47 is provided on one side of the module moving plate 46. A first lifting mounting plate 48 is slidably connected to the fourth linear guide rail 47 via a slider 23. A first moving plate 49 is connected to the front of the first lifting mounting plate 48, and a lead screw seat is connected to the back. A fourth lead screw 50 is threadedly connected to the lead screw seat. One end of the fourth lead screw 50 is connected to the fourth motor 51 via the coupling 26, and the other end is mounted on the module moving plate 46 via the bearing seat. The fourth motor 51 drives the fourth lead screw 50 to rotate forward and backward, causing the lead screw seat to move up and down along the fourth lead screw 50, thereby driving the first lifting mounting plate 48 to slide up and down on the fourth linear guide rail 47. The first movable plate 49 is provided with multiple gripper mounting plates 52. Each gripper mounting plate 52 is equipped with a first gripper cylinder 53 at its bottom. The output end of the first gripper cylinder 53 is connected to a first piston gripper 54. The gripping surface of the first piston gripper 54 is provided with a first nylon gripper block 55. The first piston gripper 54 is used to grip the outer surface of the piston workpiece 16 to be ground by the first nylon gripper block 55 under the drive of the first gripper cylinder 53, and to ensure the stability during gripping. The first movable plate 49 is also provided with a rotary cylinder mounting plate 56, and a rotary cylinder 57 is mounted on the front of the rotary cylinder mounting plate 56; the output end of the rotary cylinder 57 is connected to a rotary plate 58, and a first gripper cylinder 53 is mounted on the front of the rotary plate 58; the output end of the first gripper cylinder 53 is connected to a first piston gripper 54, and a first nylon gripper block 55 is provided on the gripping surface of the first piston gripper 54; the first piston gripper 54 is used to grip the outer surface of the piston workpiece 16 to be ground by the first nylon gripper block 55 under the drive of the first gripper cylinder 53, and to ensure the stability during gripping; the rotary cylinder 57 is used to flip the piston workpiece so that the unground surface faces down.

[0045] Specifically, the second motor 40 drives the second lead screw 41 to rotate in both directions. Through the threaded engagement between the second lead screw 41 and the lead screw seat, the second slide plate 39 is driven to slide back and forth along the second linear guide rail 38, thereby realizing the overall front-to-back position adjustment of the transverse module and the transfer gripper module.

[0046] The third motor drives the third lead screw 45 to rotate, causing the transverse slide plate 44 to slide laterally along the third linear guide rail 43, which in turn drives the transfer gripper module to move left and right, precisely adjusting the transverse coordinates of the gripper to ensure alignment with the workpiece to be clamped.

[0047] The fourth motor 51 drives the fourth lead screw 50 to rotate, causing the first lifting mounting plate 48 to slide up and down along the fourth linear guide rail 47, controlling the height of the first moving plate 49 and the gripper, thus realizing the gripper's picking and unloading actions. The first gripper cylinder 53 drives the first piston gripper 54 to close, clamping the outer surface of the piston workpiece 16 to be ground through the first nylon gripper block 55. The nylon material ensures clamping stability and avoids damage to the workpiece.

[0048] After one side of the workpiece is polished, the polishing jaw assembly moves the workpiece to the first clamping position. The lateral position and height of the rotating plate 58 and its jaws are controlled to move it to the first clamping position. The first piston jaw 54 is driven by the first jaw cylinder 53 on the rotating plate 58 to clamp the workpiece from the first clamping position. The rotating plate 58 is rotated 180° by the rotating cylinder 57, causing the first piston jaw 54 holding the workpiece to flip so that the unpolished surface is facing down. Then the workpiece is released and handed over to the top holding mechanism 72 for fixation.

[0049] See Figure 6In one possible embodiment, the lifting servo assembly includes a module support base 59 mounted on the end of the first grinding disc base plate 21. A servo support square tube 60 is provided on the top of the module support base 59. A fifth linear guide rail 61 is provided on one side of the servo support square tube 60. A second lifting mounting plate 62 is slidably connected to the fifth linear guide rail 61 via a slider 23. A second moving plate 63 is connected to the front of the second lifting mounting plate 62, and a lead screw seat is connected to the back. A fifth lead screw 64 is threadedly connected to the lead screw seat. One end of the fifth lead screw 64 is connected to the fifth motor 65 via the coupling 26, and the other end is mounted on the servo support square tube 60 via the bearing seat. The fifth motor 65 drives the fifth lead screw 64 to rotate forward and backward, causing the lead screw seat to move up and down along the fifth lead screw 64, thereby driving the second lifting mounting plate 62 to slide up and down on the fifth linear guide rail 61.

[0050] See Figure 6 In one possible embodiment, the grinding gripper assembly includes gripper mounting seats 66 disposed at both ends of the second moving plate 63. A second gripper cylinder 67 is mounted on the bottom of the gripper mounting seat 66. A second piston gripper 68 is connected to the output end of the second gripper cylinder 67. A second nylon gripper block 69 is disposed at the end of the second piston gripper 68. The second nylon gripper block 69 is used to extend into the piston workpiece under the drive of the fifth motor 65 and to press against the inner surface of the piston workpiece under the drive of the second gripper cylinder 67, thereby achieving the holding of the piston workpiece and ensuring stability during holding.

[0051] Specifically, after the fifth motor 65 starts, it drives the fifth lead screw 64 to rotate in both directions through the coupling 26, causing the lead screw seat to move up and down along the fifth lead screw 64, thereby driving the second lifting mounting plate 62 and the second moving plate 63 to slide up and down along the fifth linear guide rail 61, thereby realizing the height adjustment of the grinding gripper assembly.

[0052] When the grinding gripper assembly moves to the position of the piston workpiece 16 to be ground, the second nylon gripper block 69 at the end extends into the workpiece; then, the second gripper cylinder 67 drives the second piston gripper 68 to open, and the second nylon gripper block 69 presses against the inner surface of the workpiece to complete the stable holding of the piston workpiece and provide fixed support for the grinding process.

[0053] See Figure 2 In one possible embodiment, the first sensing mechanism includes a transmitter and a receiver, which are respectively mounted on both sides of the first conveyor frame 12 via a bracket 15.

[0054] See Figure 3 In one possible embodiment, the second sensing mechanism includes a transmitter and a receiver, which are respectively mounted on both sides of the second conveyor frame 18 via a bracket 15.

[0055] Specifically, the transmitter and receiver are respectively positioned on both sides of the first conveyor frame 12 via bracket 15, forming a photoelectric sensing area. When the piston workpiece 16 to be ground is conveyed by the first conveyor belt 13 to the vicinity of the feed inlet and passes through the sensing area, the signal emitted by the transmitter is blocked by the workpiece. After the receiver cannot receive the signal, it triggers the sensing and stops the operation of the first conveyor belt 13. At the same time, the baffle plate 14 prevents the workpiece from continuing to move forward due to inertia, thus achieving precise positioning of the workpiece at the loading position.

[0056] The transmitter and receiver are respectively positioned on both sides of the second conveyor frame 18 via bracket 15, forming a photoelectric sensing area. When the polished piston workpiece 20 is transferred to the second conveyor belt 19 of the unloading conveyor line 10, the signal emitted by the transmitter is blocked by the workpiece. After the receiver cannot receive the signal, it triggers the induction and starts the second conveyor belt 19 to transport the polished piston workpiece 20 from the discharge port to the next process.

[0057] In one possible embodiment, the transparent window door 3 is provided with a handle; the outer casing profile 2 is provided with an operation box 6 on one side and an electrical cabinet 5 on the other side. The operation box 6 is electrically connected to the electrical components inside the outer casing profile 2 through wires provided in the connector 7 and the square tube 8.

[0058] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A piston-driven double-plane grinder, characterized in that, include: The machine base is equipped with an outer cover profile, and the outer cover profile is fitted with a transparent sealing plate. The transparent sealing plate has a feed inlet and a discharge outlet. The feeding conveyor line is connected to the feed inlet and includes a first support base. The first support base is provided with a first conveyor frame and a first conveyor belt. The end of the first conveyor frame near the feed inlet is provided with a baffle plate and a first sensing mechanism. The grinding mechanism is located on the top of the machine base and includes a grinding disc servo assembly. A double grinding disc assembly is provided on the top of the grinding disc servo assembly. The double grinding disc assembly moves back and forth laterally under the drive of the grinding disc servo assembly. The transfer gripper mechanism is located on the top of the machine base and includes a transfer gripper servo assembly. A transverse movement module is located on the top of the transfer gripper servo assembly, and a transfer gripper module is located on the top of the transverse movement module. The top holding mechanism is located above the grinding mechanism, including a lifting servo component, on which a grinding gripper component is mounted; The material feeding conveyor line is connected to the discharge port and includes a second support base. The second support base is equipped with a second conveyor frame and a second conveyor belt. The end of the second conveyor frame near the discharge port is equipped with a second sensing mechanism.

2. The piston double-plane grinder according to claim 1, characterized in that, The grinding wheel servo assembly includes a first grinding wheel base plate, a first linear guide rail on the first grinding wheel base plate, and a first slide plate slidably connected to the first linear guide rail via a slider; A first motor is mounted on the base plate of the first grinding disc. The output end of the first motor is connected to a first lead screw via a coupling. A lead screw seat that is threadedly connected to the first lead screw is provided at the bottom of the first slide plate.

3. The piston double-plane grinder according to claim 2, characterized in that, The dual grinding disc assembly includes a grinding disc base mounted on the top of the first sliding plate. Both ends of the top of the grinding disc base are provided with rotary bearing seats. A rotary shaft is rotatably connected inside the rotary bearing seats. A synchronous pulley is threaded through the rotary shaft. The synchronous pulleys are connected to each other by belt drive. A grinding wheel fixing turntable is connected to the top of the rotating shaft, and a grinding stone is installed on the grinding wheel fixing turntable through a grinding wheel clamping ring; One of the rotating shafts has a geared motor connected to its bottom via a coupling, which drives a synchronous pulley to rotate.

4. The piston double-plane grinder according to claim 1, characterized in that, The transfer gripper servo assembly includes a second grinding disc base plate, a second linear guide rail on the second grinding disc base plate, and a second slide plate slidably connected to the second linear guide rail via a slider. A second motor is mounted on the base plate of the second grinding disc. The output end of the second motor is connected to a second lead screw via a coupling. A lead screw seat that is threadedly connected to the second lead screw is provided at the bottom of the second slide plate.

5. The piston double-plane grinder according to claim 4, characterized in that, The transverse module includes a transverse mounting plate installed on the top of the second slide plate, a third linear guide rail is provided on the top of the transverse mounting plate, a transverse slide plate is slidably connected to the third linear guide rail via a slider, and a lead screw seat is provided at the bottom of the transverse slide plate, with a third lead screw threadedly connected to the lead screw seat. One end of the third lead screw is connected to the third motor via a coupling, and the other end is mounted on the transverse mounting plate via a bearing housing.

6. The piston double-plane grinder according to claim 5, characterized in that, The transfer gripper module includes a module moving plate installed on the top of the transverse sliding plate. A fourth linear guide rail is provided on one side of the module moving plate. A first lifting mounting plate is slidably connected to the fourth linear guide rail via a slider. The first moving plate is connected to the front of the first lifting mounting plate, and a lead screw seat is connected to the back. A fourth lead screw is threadedly connected to the lead screw seat. One end of the fourth lead screw is connected to the fourth motor via a coupling, and the other end is mounted on the module moving plate via a bearing seat. The first movable plate is provided with multiple gripper mounting plates. Each gripper mounting plate is equipped with a first gripper cylinder at its bottom. The output end of the first gripper cylinder is connected to a first piston gripper. A first nylon gripper block is provided on the gripping surface of the first piston gripper. The first movable plate is also provided with a rotary cylinder mounting plate, and a rotary cylinder is mounted on the front of the rotary cylinder mounting plate; the output end of the rotary cylinder is connected to the rotary plate, and a first gripper cylinder is mounted on the front of the rotary plate; the output end of the first gripper cylinder is connected to a first piston gripper, and a first nylon gripper block is provided on the gripping surface of the first piston gripper.

7. The piston double-plane grinder according to claim 2, characterized in that, The lifting servo assembly includes a module support base installed at the end of the first grinding disc base plate. A servo support square tube is provided on the top of the module support base. A fifth linear guide is provided on one side of the servo support square tube. A second lifting mounting plate is slidably connected to the fifth linear guide via a slider. A second moving plate is connected to the front of the second lifting mounting plate, and a lead screw seat is connected to the back. A fifth lead screw is threadedly connected to the lead screw seat. One end of the fifth lead screw is connected to the fifth motor via a coupling, and the other end is mounted on the servo support square tube via a bearing housing.

8. The piston double-plane grinder according to claim 7, characterized in that, The grinding gripper assembly includes gripper mounting seats at both ends of the second movable plate. A second gripper cylinder is mounted at the bottom of the gripper mounting seat. A second piston gripper is connected to the output end of the second gripper cylinder. A second nylon gripper block is provided at the end of the second piston gripper.

9. The piston double-plane grinder according to claim 1, characterized in that, Both the first sensing mechanism and the second sensing mechanism include a transmitter and a receiver, which are respectively mounted on both sides of the first conveyor frame and the second conveyor frame via brackets.

Images