An elastic ring damper grinding device

Abstract

The present invention relates to the technical field of high-speed gearbox part processing, and particularly relates to a grinding device for an elastic ring damper, which includes a processing table, a base arranged on the top of the processing table, and a controller installed on the processing table. The grinding device further includes: a clamping and grinding mechanism arranged at equal angles on the top of the base; the clamping and grinding mechanism is used to grind the inner and outer surfaces of the elastic ring respectively; an oil hydraulic drive mechanism arranged above the center of the base; the oil hydraulic drive mechanism is used to drive the clamping and grinding mechanism to switch the clamping and grinding states of the inner and outer surfaces of the elastic ring. Through the present invention, the grinding process of the inner and outer surfaces of the elastic support ring can be completed after one stroke, without the need to separately clamp and position the inner and outer surfaces of the elastic support ring for grinding when grinding the inner and outer surfaces of the elastic support ring. The operation is simple and the grinding efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed gearbox parts processing, in particular to an elastic ring damper grinding device. Background Art

[0002] High-speed gearbox is an important component of industrial transmission system, widely used in wind power, aerospace, automobile manufacturing and heavy machinery. High-speed gearbox will generate vibration during operation. Since the bearing seat and the box body of the high-speed gearbox are in hard contact, in order to effectively reduce vibration and improve load stability, an elastic ring structure is usually added between the bearing seat and the gearbox. The inner and outer ring walls of the elastic ring are staggered with a series of bosses, which separate the continuous oil film into multiple small oil chambers in the inner and outer cavities. Under the excitation of the journal, the elastic ring produces radial bending deformation, which can automatically adjust the oil film gap between the inner and outer cavities, and can buffer the impact of transient loads on the bearing seat.

[0003] During the production process of the elastic support ring, the surface of the initially formed elastic support ring is relatively rough, and the inner and outer surfaces of the elastic support ring need to be polished by grinding equipment to make the surface smooth.

[0004] In the prior art, grinding equipment needs to grind the inner and outer surfaces of the elastic support ring separately. When grinding the inner surface, the outer surface of the workpiece needs to be fixed and an inner cylindrical grinding head is used to grind the inner surface. When grinding the outer surface, the inner surface of the workpiece needs to be fixed and an outer cylindrical grinding head is used to grind the outer surface. Under this grinding method, the grinding efficiency of the elastic support ring is low, the operation is cumbersome, and the inner and outer surfaces of the elastic support ring are staggered with bosses, which is not conducive to clamping and grinding the inner and outer surfaces of the support ring.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original elastic ring damper grinding equipment. Summary of the invention

[0006] In view of this, the purpose of the present invention is to propose an elastic ring damper grinding equipment to solve the problem in the prior art that the inner and outer surfaces of the elastic support ring need to be ground separately. Under this grinding method, the grinding efficiency of the elastic support ring is low, the operation is cumbersome, and the inner and outer surfaces of the elastic support ring are staggered with bosses, which is not conducive to clamping and grinding the inner and outer surfaces of the support ring.

[0007] Based on the above purpose, the present invention provides an elastic ring damper grinding device, including a processing table, a base arranged on the top of the processing table, and a controller installed on the processing table, and the grinding device also includes:

[0008] A clamping and grinding mechanism is arranged at equal angles on the top of the base;

[0009] The clamping and grinding mechanism is used to grind the inner and outer surfaces of the elastic ring respectively;

[0010] An oil-driven mechanism arranged above the center of the base;

[0011] The oil-driven mechanism is used to drive the clamping and grinding mechanism to switch the clamping and grinding states of the inner and outer surfaces of the elastic ring.

[0012] Furthermore, the clamping and grinding mechanism includes two groups of first oil cylinders oppositely arranged on the top of the base. Bottom plates are fixed between the bottoms of the two groups of first oil cylinders and the top of the base. The inner wall of the end of each group of first oil cylinders is fixedly connected with a first spring. The end of the first spring is fixedly connected with a first piston plate that is slidably matched with the inner wall of the first oil cylinder. A connecting column is fixed to the outer wall of the first piston plate;

[0013] A first oil pressure balancing component is arranged on the top of each group of first oil cylinders. The first oil pressure balancing component is used to regulate the oil pressure inside the first oil cylinder.

[0014] Furthermore, motors are installed at the ends of the connecting columns of one of the clamping and grinding mechanisms. The output ends of the motors are connected with grinding rollers through ratchet assemblies. The tops of the connecting columns of the remaining clamping and grinding mechanisms are rotatably connected with clamping rollers. The tops of the grinding rollers and the clamping rollers are both provided with conical structures;

[0015] Guide plates are relatively fixed at the tops of the two connecting columns of each group of clamping and grinding mechanisms. The guide plates are respectively close to the corresponding grinding rollers and clamping rollers. And the upper ends of the two guide plates of each group of clamping and grinding mechanisms are oppositely provided with extending ends that are inclined towards between the grinding rollers or the clamping rollers.

[0016] Furthermore, switch components are arranged at the bottoms of the first oil cylinders of one of the clamping and grinding mechanisms. The switch components are used to control the opening and closing states of the motors according to the pressure inside the first oil cylinders.

[0017] Furthermore, the first oil pressure balancing component includes a first outer cylinder fixed to the top of the first oil cylinder and communicated with it. The inner wall of the top of the first outer cylinder is fixed with a second spring. The bottom of the second spring is connected with a second piston plate that is slidably matched with the inner wall of the first outer cylinder. An air hole is opened at the top of the first outer cylinder.

[0018] Furthermore, the switch component includes a second outer cylinder fixed to the bottom of the first oil cylinder and communicated with it. An opening and closing switch is installed on the inner wall of the bottom of the second outer cylinder. A third spring is fixed to the inner wall of the bottom end of the second outer cylinder. The top end of the third spring is fixedly connected with a third piston plate that is slidably matched with the inner wall of the second outer cylinder. A push rod facing the opening and closing switch is fixed to the bottom of the third piston plate. An air hole is opened at the bottom of the second outer cylinder.

[0019] Further, the oil hydraulic drive mechanism includes a fixing plate fixed on the processing table. A second oil hydraulic cylinder is fixed on the top of the fixing plate. A connecting cylinder communicating with the second oil hydraulic cylinder is fixed on the top of the second oil hydraulic cylinder. An oil injection port is arranged on the top of the second oil hydraulic cylinder.

[0020] An electric telescopic rod is installed on the top of the fixing plate. The telescopic end of the electric telescopic rod is in sealed sliding fit with the bottom of the second oil hydraulic cylinder. And a fourth piston plate which is in sliding fit with the inner wall of the second oil hydraulic cylinder is fixed at the end of the electric telescopic rod. A top column which is in sealed sliding fit with the inner wall of the connecting cylinder is fixed on the top of the fourth piston plate. An annular groove is formed on the outer wall of the lower end of the top column.

[0021] A second oil pressure balance assembly for balancing the pressure at the bottom of the fourth piston plate is arranged at the bottom of the second oil hydraulic cylinder. A third oil pressure balance assembly for balancing the pressure inside the connecting cylinder is arranged at the top of the connecting cylinder.

[0022] Further, the oil hydraulic drive mechanism further includes first connecting pipes connected to the outer wall of the second oil hydraulic cylinder at equal angles. The other ends of the first connecting pipes are respectively connected to the first oil hydraulic cylinders on the outer sides of each group of clamping and grinding mechanisms. Second connecting pipes are connected to the outer wall of the lower end of the connecting cylinder at equal angles. The other ends of the second connecting pipes are respectively connected to the first oil hydraulic cylinders on the inner sides of each group of clamping and grinding mechanisms.

[0023] Further, the second oil pressure balance assembly includes a third outer cylinder fixed at the bottom of the second oil hydraulic cylinder and communicating with the second oil hydraulic cylinder. A fourth spring is fixedly connected to the inner wall of the bottom end of the third outer cylinder. A fifth piston plate which is in sliding fit with the inner wall of the second oil hydraulic cylinder is fixedly connected to the top of the fourth spring. An air hole is formed in the bottom of the third outer cylinder.

[0024] Further, the third oil pressure balance assembly includes a fourth outer cylinder fixed at the top of the connecting cylinder and communicating with the connecting cylinder. And an oil injection port is arranged at the bottom of the fourth outer cylinder. A fifth spring is fixed to the inner wall of the top of the fourth outer cylinder. A sixth piston plate which is in sliding fit with the inner wall of the fourth outer cylinder is fixed to the bottom end of the fifth spring. An air hole is formed in the top of the fourth outer cylinder.

[0025] Advantages of the present invention: By using a grinding device for an elastic ring damper according to the present invention, through the setting of a clamping and grinding mechanism and a hydraulic driving mechanism. In the clamping and grinding mechanism, by means of the guide plates of the inner and outer rings, elastic support rings with size differences can be clamped between the grinding rollers and the clamping rollers of the inner and outer rings, and the grinding rollers and the clamping rollers can always be attached to the outer wall of the elastic support ring. Under the operating principle of the hydraulic driving mechanism, during one pushing process of the electric telescopic rod, this stroke can be divided into two stages. In the first stage, only the grinding roller of the inner ring rotates to grind the inner surface of the elastic support ring, and the remaining grinding rollers and clamping rollers are always in rolling friction in the rotating direction of the elastic support ring. In the second stage, only the grinding roller of the outer ring rotates to grind the outer surface of the elastic support ring, and the remaining grinding rollers and clamping rollers are also always in rolling friction in the rotating direction of the elastic support ring. After one stroke is completed, the grinding of the inner and outer surfaces of the elastic support ring can be completed. Compared with the prior art, it is not necessary to clamp and position the inner and outer surfaces of the elastic support ring respectively when grinding the inner and outer surfaces of the elastic support ring and then perform grinding. The operation is simple and the grinding efficiency is higher;

[0026] Secondly, during the grinding process, there are staggered convex platforms on the inner and outer surfaces of the elastic support ring. When grinding the inner surface, the hydraulic pressure of the first hydraulic cylinder of the inner ring is in an unpressurized state. When the grinding roller and the clamping roller roll over the convex platform, they will adaptively displace. To maintain the oil pressure in the first hydraulic cylinder of the inner ring at this time, the third piston plate will slide adaptively in the second outer cylinder, and the small sliding stroke of the third piston plate caused by the convex platform is not enough to make the ejector rod at its bottom press the opening and closing switch. And the hydraulic pressure of the first hydraulic cylinder of the outer ring is in a continuously pressurized state, which can improve the clamping stability of the elastic support ring when encountering a convex platform. Similarly, adaptive adjustment can also be carried out when grinding the outer surface, so that the inner and outer surfaces of the elastic support ring can be ground even when there are protrusions on the surface of the elastic support ring. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a three-dimensional view of the grinding device for an elastic ring damper in the present invention;

[0029] Figure 2 It is a three-dimensional view of the main mechanism in the present invention;

[0030] Figure 3 It is a three-dimensional view of the clamping and grinding mechanism in the present invention;

[0031] Figure 4 It is a sectional perspective view of the clamping and grinding mechanism in the present invention;

[0032] Figure 5 It is a sectional plan view of the clamping and grinding mechanism in the present invention;

[0033] Figure 6 In the present invention Figure 4 Enlarged view of part A;

[0034] Figure 7 It is a perspective view of the oil hydraulic drive mechanism in the present invention;

[0035] Figure 8 It is a sectional perspective view of the oil hydraulic drive mechanism in the present invention;

[0036] Figure 9 It is a perspective view of the ejector post in the present invention;

[0037] Figure 10 It is a schematic diagram of the rotation direction of the grinding roller during the grinding of the inner and outer surfaces in the present invention;

[0038] Figure 11 It is a three-dimensional schematic diagram of the elastic support ring in the present invention.

[0039] The markings in the figure are:

[0040] 1. Processing table; 2. Base; 3. Controller; 4. Bottom plate; 5. First oil cylinder; 51. First spring; 52. First piston plate; 53. Connecting column; 54. First outer cylinder; 55. Second spring; 56. Second piston plate; 57. Second outer cylinder; 58. Opening and closing switch; 59. Third spring; 510. Third piston plate; 511. Motor; 512. Grinding roller; 513. Clamping roller; 514. Guide plate; 6. Fixed plate; 61. Second oil cylinder; 62. Connecting cylinder; 63. Electric telescopic rod; 64. Fourth piston plate; 65. Ejector post; 66. Annular groove; 67. Third outer cylinder; 68. Fourth spring; 69. Fifth piston plate; 610. Fourth outer cylinder; 611. Fifth spring; 612. Sixth piston plate; 613. First connecting pipe; 614. Second connecting pipe. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0042] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0043] In the first aspect of the present invention, an elastic ring damper grinding device is proposed. As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 10 shown, it includes a processing table 1, a base 2 arranged on the top of the processing table 1, and a controller 3 installed on the processing table 1. The grinding device further includes:

[0044] A clamping and grinding mechanism arranged at equal angles on the top of the base 2;

[0045] The clamping and grinding mechanism is used to grind the inner and outer surfaces of the elastic ring respectively;

[0046] An oil hydraulic driving mechanism arranged above the center of the base 2;

[0047] The oil hydraulic driving mechanism is used to drive the clamping and grinding mechanism to switch the clamping and grinding states of the inner and outer surfaces of the elastic ring.

[0048] The clamping and grinding mechanism includes two groups of first oil cylinders 5 arranged oppositely on the top of the base 2. Bottom plates 4 are fixed between the bottoms of the two groups of first oil cylinders 5 and the top of the base 2. The inner wall of the end of each group of first oil cylinders 5 is fixedly connected with a first spring 51. The end of the first spring 51 is fixedly connected with a first piston plate 52 that is slidably matched with the inner wall of the first oil cylinder 5. A connecting column 53 is fixed on the outer wall of the first piston plate 52;

[0049] A first oil pressure balance assembly is arranged on the top of each group of first oil cylinders 5, and the first oil pressure balance assembly is used to regulate the oil pressure inside the first oil cylinder 5.

[0050] One end of the connecting column 53 of each set of clamping and grinding mechanisms is installed with a motor 511. The output end of the motor 511 is connected to a grinding roller 512 through a ratchet assembly. The top of the connecting column 53 of the remaining clamping and grinding mechanisms is rotatably connected to a clamping roller 513. The tops of the grinding roller 512 and the clamping roller 513 are both provided with a conical structure.

[0051] At the top of the two connecting columns 53 of each set of clamping and grinding mechanisms, guide plates 514 are relatively fixed. The guide plates 514 are respectively close to the corresponding grinding roller 512 and clamping roller 513. And the upper ends of the two guide plates 514 of each set of clamping and grinding mechanisms are relatively provided with extending ends that are inclined towards the space between the grinding roller 512 or the clamping roller 513.

[0052] One end of each of the first oil cylinders 5 of one set of clamping and grinding mechanisms is provided with a switch assembly, and the switch assembly is used to control the opening and closing state of the motor 511 according to the internal pressure of the first oil cylinder 5.

[0053] The first oil pressure balance assembly includes a first outer cylinder 54 fixed to the top of the first oil cylinder 5 and communicating with it. The inner wall of the top of the first outer cylinder 54 is fixed with a second spring 55. The bottom of the second spring 55 is connected with a second piston plate 56 that is slidably matched with the inner wall of the first outer cylinder 54. An air hole is opened at the top of the first outer cylinder 54.

[0054] The switch assembly includes a second outer cylinder 57 fixed to the bottom of the first oil cylinder 5 and communicating with it. An opening and closing switch 58 is installed on the inner wall of the bottom of the second outer cylinder 57. A third spring 59 is fixed to the inner wall of the bottom end of the second outer cylinder 57. The top end of the third spring 59 is fixedly connected with a third piston plate 510 that is slidably matched with the inner wall of the second outer cylinder 57. A push rod facing the opening and closing switch 58 is fixed to the bottom of the third piston plate 510. An air hole is opened at the bottom of the second outer cylinder 57.

[0055] As an example of this embodiment, the elastic support ring is placed between the guide plates 514 of the inner and outer rings. The bottom of the elastic support ring may be located at any position between the guide plates 514 of the inner and outer rings, and the upper ends of the guide plates 514 of the inner and outer rings are inclined towards the gap between the grinding roller 512 and the clamping roller 513. At this time, when pressing the elastic support ring, according to the size of the elastic support ring, its bottom squeezes the inclined surface of the guide plate 514 of the inner or outer ring in each set of clamping and grinding mechanisms and moves downward. The corresponding guide plate 514 of the outer or inner ring is displaced accordingly. If the size of the elastic support ring is smaller than the gap position in the initial state, the guide plate 514 of the inner ring is squeezed and contracts inward, and the support ring is clamped between the grinding rollers 512 or clamping rollers 513 of the inner and outer rings. At this time, the connecting column 53 of the inner ring pushes the first piston plate 52 to slide inward and squeezes the oil in the first spring 51 and the first oil cylinder 5. The first spring 51 of the outer ring is reset by a corresponding distance and pushes the first piston plate 52 to slide inward. The grinding rollers 512 or clamping rollers 513 of the inner and outer rings always fit the inner and outer surfaces of the elastic support ring and are initially clamped under the elastic force of the first spring 51. When the first piston plates 52 of the inner and outer rings have relative displacement in the first oil cylinder 5, to ensure the pressure balance in the first oil cylinder 5, the second piston plate 56 of the inner ring slides upward in the first outer cylinder 54 and continues to squeeze the second spring 55, while the second piston plate 56 of the outer ring slides downward in the first outer cylinder 54, and the second spring 55 is reset by a corresponding distance;

[0056] Under the action of the oil hydraulic drive mechanism, when grinding the inner surface of the grinding elastic ring, the third piston plate 510 will drive the ejector rod to press the opening and closing switch 58 at the bottom. The opening and closing switch 58 on the outer ring is electrically connected to the motor 511 on the inner ring, causing the motor 511 on the inner ring to start rotating counterclockwise. The ratchet assembly between the output end of the motor 511 and its corresponding grinding roller 512 is in a non-rotatable direction, so that the motor 511 drives the grinding roller 512 to rotate counterclockwise through the ratchet assembly. The clamping rollers 513 on the inner ring are all attached to the inner wall of the elastic support ring. While the grinding roller 512 on the inner ring grinds the inner surface of the support ring, it will drive the support ring to rotate counterclockwise. The grinding roller 512 located on the outer ring is rotating clockwise at this time. In this rotation direction, the ratchet assembly between the output end of the motor 511 and the corresponding grinding roller 512 is in a rotatable direction, and the clamping rollers 513 on the outer ring roll while attaching to the outer surface of the support ring. After the ejector rod presses the opening and closing switch 58, the oil hydraulic fluid is still being delivered to the first oil hydraulic cylinder 5 on the outer ring. At this time, the oil hydraulic fluid will push the second piston plate 56 on the outer ring to slide upward in the first outer cylinder 54, and the second piston plate 56 will squeeze the second spring 55. As the second spring 55 is squeezed, the elastic force is continuously increasing, causing the oil hydraulic pressure in the first oil hydraulic cylinder 5 to continuously increase. The clamping force of the grinding roller 512 and the clamping roller 513 on the outer ring on the outer surface of the support ring also increases synchronously. By the rapid rotation of the grinding roller 512 on the inner ring driven by the motor 511 to grind the inner surface of the support ring, and at the same time the support ring rotates under the action of rolling friction, the inner surface of the support ring can be completely ground. When grinding the outer surface, similarly, the ejector rod at the bottom of the third piston plate 510 on the inner ring presses the opening and closing switch 58, and the motor 511 on the outer ring starts to rotate counterclockwise. At this time, the ratchet assembly between the grinding roller 512 on the outer ring and the motor 511 is non-rotatable in this direction, so that the motor 511 drives the grinding roller 512 on the outer ring to rotate counterclockwise. Then, while the grinding roller 512 on the outer ring grinds the outer surface of the support ring, it will drive the support ring to rotate clockwise. The grinding roller 512 located on the inner ring is rotating clockwise at this time. In this rotation direction, the ratchet assembly between the output end of the motor 511 and the grinding roller 512 on the inner ring is in a rotatable direction. As the oil hydraulic fluid continues to be delivered, the clamping force of the grinding roller 512 and the clamping roller 513 on the inner ring on the inner surface of the support ring also increases synchronously. By the rapid rotation of the grinding roller 512 on the outer ring driven by the motor 511 to grind the outer surface of the support ring, and at the same time the support ring rotates under the action of rolling friction, the outer surface of the support ring can be completely ground.

[0057] As an implementation method, as Figure 7 , Figure 8 , Figure 9 shown, the oil hydraulic drive mechanism includes a fixed plate 6 fixed on the processing table 1. The top of the fixed plate 6 is fixed with a second oil hydraulic cylinder 61. The top of the second oil hydraulic cylinder 61 is fixed with a connecting cylinder 62 communicated with it. The top of the second oil hydraulic cylinder 61 is provided with an oil injection port;

[0058] An electric telescopic rod 63 is installed on the top of the fixed plate 6. The telescopic end of the electric telescopic rod 63 is hermetically and slidably fitted with the bottom of the second oil cylinder 61. And a fourth piston plate 64 that is slidably fitted with the inner wall of the second oil cylinder 61 is fixed to the end of the electric telescopic rod 63. A top column 65 that is hermetically and slidably fitted with the inner wall of the connecting cylinder 62 is fixed to the top of the fourth piston plate 64. An annular groove 66 is formed on the outer wall of the lower end of the top column 65.

[0059] A second oil pressure balance assembly for balancing the pressure at the bottom of the fourth piston plate 64 is arranged at the bottom of the second oil cylinder 61. A third oil pressure balance assembly for balancing the pressure inside the connecting cylinder 62 is arranged at the top of the connecting cylinder 62.

[0060] The oil hydraulic driving mechanism further includes a first connecting pipe 613 that is connected to the outer wall of the second oil cylinder 61 at equal angles. The other ends of the first connecting pipes 613 are respectively connected to the first oil cylinders 5 on the outer sides of each group of clamping and grinding mechanisms. Second connecting pipes 614 are connected to the outer wall of the lower end of the connecting cylinder 62 at equal angles. The other ends of the second connecting pipes 614 are respectively connected to the first oil cylinders 5 on the inner sides of each group of clamping and grinding mechanisms.

[0061] The second oil pressure balance assembly includes a third outer cylinder 67 that is fixed to the bottom of the second oil cylinder 61 and communicates with it. A fourth spring 68 is fixedly connected to the inner wall of the bottom end of the third outer cylinder 67. A fifth piston plate 69 that is slidably fitted with the inner wall of the second oil cylinder 61 is fixedly connected to the top of the fourth spring 68. An air hole is formed at the bottom of the third outer cylinder 67.

[0062] The third oil pressure balance assembly includes a fourth outer cylinder 610 that is fixed to the top of the connecting cylinder 62 and communicates with it. And an oil injection port is arranged at the bottom of the fourth outer cylinder 610. A fifth spring 611 is fixed to the inner wall of the top of the fourth outer cylinder 610. A sixth piston plate 612 that is slidably fitted with the inner wall of the fourth outer cylinder 610 is fixed to the bottom end of the fifth spring 611. An air hole is formed at the top of the fourth outer cylinder 610.

[0063] As the present embodiment, since the controller 3 is electrically connected to the electric telescopic rod 63, the electric telescopic rod 63 is started by controlling the controller 3, and the electric telescopic rod 63 pushes the fourth piston plate 64 to slide upward in the second oil cylinder 61 to above the connecting port of the first connecting tube 613, and the connecting port of the first connecting tube 613 is located in the middle of the second oil cylinder 61, located in the area below the fourth piston plate 64. To ensure pressure balance, the fifth piston plate 69 slides to the top in the third outer cylinder 67, pushing the oil inside it to below the fourth piston plate 64, located in the area above the fourth piston plate 64, and the oil is transported to the first oil cylinder 5 of the outer ring through the first connecting tube 613, respectively, to achieve clamping of the outer surface of the elastic support ring and grinding of the inner surface. When the fourth piston plate 64 moves past the connecting port of the first connecting tube 613, the top column 65 will slide the same stroke in the connecting cylinder 62, and the top of the top column 65 will push the oil to the fourth outer cylinder 610 The sixth piston plate 612 is pushed inwardly, so that the sixth piston plate 612 squeezes the fifth spring 611, and the top of the annular groove 66 located on the outer wall of the top column 65 just moves to below the connecting port of the second connecting tube 614 and the connecting tube 62. Then, when the electric telescopic rod 63 continues to drive the fourth piston plate 64 to slide up, the bottom end of the fourth piston plate 64 moves through the connecting port of the first connecting tube 613, and begins to draw back the oil in the first oil cylinder 5 delivered to the outer ring through the first connecting tube 613, relieves the increased pressure in the first oil cylinder 5, stops grinding the inner surface, and the fourth piston plate 64 continues to push the top column 65 upward, and the oil at the top of the fourth piston plate 64 is transported to the second connecting tube 614 through the annular groove 66 and begins to be transported to the first oil cylinder 5 of the inner circle. Similarly, the inner surface of the elastic support ring is positioned and the outer surface is polished until the fourth piston plate 64 moves to the top of the second oil cylinder 61 and is in the maximum stroke state, and the electric telescopic rod 63 stops.

[0064] Specifically: First, in the initial state, the interior of the fourth outer cylinder 610 is located in the area below the sixth piston plate 612, the interior of the connecting cylinder 62, the interior of the second oil cylinder 61 is located in the top and bottom areas of the fourth piston plate 64, the interior of the third outer cylinder 67 is located in the area above the fifth piston plate 69, the interior of the first connecting pipe 613 and the second connecting pipe 614, the area on one side of the first piston plate 52 in the first oil cylinder 5 of the inner and outer circles, and the area below the second piston plate 56 in the first outer cylinder 54 are all filled with oil, wherein the second spring 55 and the first spring 51 in the first oil cylinder 5 of the inner and outer circles are both in a compressed state, so that the grinding rollers 512 or the clamping rollers 513 in each group of clamping and grinding mechanisms are in a state of resistance, and under the premise of this state, the elastic force of the first spring 51 of the inner and outer circles is greater than the elastic force of the second spring 55, the elastic force of the third spring 59 is less than the elastic force of the second spring 55, and the elastic force of the fifth spring 611 is greater than the elastic force of the first spring 51.

[0065] Due to slight differences in the size of the elastic support ring, when the elastic support ring is placed between the guide plates 514 of the inner and outer rings, the bottom of the elastic support ring may be located at any position between the guide plates 514 of the inner and outer rings. The upper ends of the guide plates 514 of the inner and outer rings are inclined towards the gap between the grinding roller 512 and the clamping roller 513. At this time, when pressing the elastic support ring, according to the size of the elastic support ring, its bottom squeezes the inclined surface of the guide plate 514 of the inner or outer ring in each set of clamping and grinding mechanisms and moves downward. The corresponding guide plate 514 of the outer or inner ring undergoes a corresponding displacement. If the size of the elastic support ring is smaller than the gap position in the initial state, the guide plate 514 of the inner ring is squeezed and contracts inward, and the support ring is clamped between the grinding rollers 512 or clamping rollers 513 of the inner and outer rings. At this time, the connecting column 53 of the inner ring pushes the first piston plate 52 to slide inward and squeezes the oil in the first spring 51 and the first oil cylinder 5. The first spring 51 of the outer ring resets a corresponding distance and pushes the first piston plate 52 to slide inward. The grinding rollers 512 or clamping rollers 513 of the inner and outer rings always fit the inner and outer surfaces of the elastic support ring and perform preliminary clamping under the elastic force of the first spring 51. When the first piston plates 52 of the inner and outer rings undergo relative displacement in the first oil cylinder 5, to ensure pressure balance in the first oil cylinder 5, the second piston plate 56 of the inner ring slides upward in the first outer cylinder 54 and continues to squeeze the second spring 55, while the second piston plate 56 of the outer ring slides downward in the first outer cylinder 54, and the second spring 55 resets a corresponding distance.

[0066] Then, since the controller 3 is electrically connected to the electric telescopic rod 63, the electric telescopic rod 63 is controlled by the controller 3 to start. The electric telescopic rod 63 then pushes the fourth piston plate 64 to slide upward in the second oil cylinder 61 to above the connection port of the first connecting pipe 613, and the connection port of the first connecting pipe 613 is located in the middle of the second oil cylinder 61 and in the area below the fourth piston plate 64. To ensure pressure balance, the fifth piston plate 69 slides to the top in the third outer cylinder 67, pushing the oil inside it to below the fourth piston plate 64. In the area above the fourth piston plate 64, the oil is respectively transported to the first oil cylinders 5 on the outer ring through the first connecting pipe 613. Since the grinding rollers 512 or clamping rollers 513 on the outer ring are in contact with the outer surface of the elastic support ring, when the oil is continuously transported into the first oil cylinders 5 on the outer ring, the oil will first squeeze the third piston plate 510 to slide downward in the second outer cylinder 57 until the third piston plate 510 drives the ejector rod to press the opening and closing switch 58 at the bottom. The opening and closing switch 58 on the outer ring is electrically connected to the motor 511 on the inner ring, causing the motor 511 on the inner ring to start rotating counterclockwise. The ratchet assembly between the output end of the motor 511 and the corresponding grinding roller 512 is in a non-rotatable direction, so that the motor 511 drives the grinding roller 512 to rotate counterclockwise through the ratchet assembly. The clamping rollers 513 on the inner ring are all in contact with the inner wall of the elastic support ring. While the grinding roller 512 on the inner ring grinds the inner surface of the support ring, it will drive the support ring to rotate counterclockwise. At this time, the grinding roller 512 on the outer ring is rotating clockwise. In this rotation direction, the ratchet assembly between the output end of the motor 511 and the corresponding grinding roller 512 is in a rotatable direction, and the clamping rollers 513 on the outer ring roll while in contact with the outer surface of the support ring. After the ejector rod presses the opening and closing switch 58, the oil is still being transported into the first oil cylinders 5 on the outer ring. At this time, the oil will push the second piston plate 56 on the outer ring to slide upward in the first outer cylinder 54, and the second piston plate 56 will squeeze the second spring 55. As the second spring 55 is squeezed, the elastic force is continuously increasing, causing the oil pressure in the first oil cylinder 5 to continuously increase. The clamping force of the grinding rollers 512 and clamping rollers 513 on the outer ring on the outer surface of the support ring also increases synchronously. By quickly rotating the grinding roller 512 on the inner ring driven by the motor 511 to grind the inner surface of the support ring, and at the same time the support ring rotates under the action of rolling friction, the inner surface of the support ring can be completely ground.

[0067] When the fourth piston plate 64 moves past the connection port of the first connecting pipe 613, the ejector rod 65 slides the same stroke within the connecting cylinder 62. The top of the ejector rod 65 then pushes the hydraulic oil into the fourth outer cylinder 610, causing the sixth piston plate 612 to compress the fifth spring 611. The top of the annular groove 66 on the outer wall of the ejector rod 65 just moves below the connection port of the second connecting pipe 614 and the connecting cylinder 62. Then, when the electric telescopic rod 63 continues to drive the fourth piston plate 64 to slide upward, the bottom end of the fourth piston plate 64 moves past the connection port of the first connecting pipe 613, and starts to draw back the hydraulic oil in the first hydraulic oil cylinder 5 transported to the outer ring through the first connecting pipe 613, relieving the increased pressure in the first hydraulic oil cylinder 5. At the same time, the ejector rod at the bottom of the third piston plate 510 resets, stopping the pressing of the opening and closing switch 58, and the motor 511 in the inner ring stops rotating. However, the fourth piston plate 64 will continue to push the ejector rod 65 upward, and the hydraulic oil at the top of the fourth piston plate 64 is transported into the second connecting pipe 614 through the annular groove 66 and starts to be transported into the first hydraulic oil cylinder 5 in the inner ring. Similarly, the ejector rod at the bottom of the third piston plate 510 in the inner ring presses the opening and closing switch 58, and the motor 511 in the outer ring starts to rotate counterclockwise. At this time, the ratchet assembly of the grinding roller 512 and the motor 511 in the outer ring cannot rotate in this direction, so that the motor 511 drives the grinding roller 512 in the outer ring to rotate counterclockwise. Then, while the grinding roller 512 in the outer ring grinds the outer surface of the grinding support ring, it will drive the support ring to rotate clockwise. The grinding roller 512 in the inner ring is rotating clockwise at this time. In this rotation direction, the ratchet assembly between the output end of the motor 511 and the grinding roller 512 in the inner ring is in the rotatable direction. As the hydraulic oil continues to be transported, the clamping force of the grinding roller 512 and the clamping roller 513 in the inner ring on the inner surface of the support ring also increases synchronously. The outer surface of the support ring can be completely ground by the rapid rotation of the grinding roller 512 in the outer ring driven by the motor 511, and at the same time, the support ring rotates under the action of rolling friction until the fourth piston plate 64 moves to the top of the second hydraulic oil cylinder 61 and is in the maximum stroke state, and the electric telescopic rod 63 stops.

[0068] Finally, during the above working process, the movement of the fourth piston plate 64 from the initial position to the top of the second hydraulic cylinder 61 is a grinding process, in which the inner and outer surfaces of the elastic support ring can be ground. Even during the grinding process, there are bosses distributed alternately on the inner and outer surfaces of the elastic support ring. When grinding the inner surface, the hydraulic pressure in the first hydraulic cylinder 5 of the inner ring is in an unpressurized state. When the grinding roller 512 and the clamping roller 513 roll over the bosses, they will adaptively displace, causing the connecting column 53 to drive the first piston plate 52 to slide. To maintain the oil pressure in the first hydraulic cylinder 5 of the inner ring at this time, the third piston plate 510 will slide adaptively in the second outer cylinder 57. However, the small sliding stroke of the third piston plate 510 caused by the bosses is not enough to make the ejector rod at its bottom press the opening and closing switch 58. Similarly, adaptive adjustment can also be carried out when grinding the outer surface, so that the inner and outer surfaces of the elastic support ring can be ground even when there are protrusions on its surface.

[0069] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0070] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An elastic ring damper grinding device, comprising a processing table (1), a base (2) arranged on the top of the processing table (1), and a controller (3) installed on the processing table (1), characterized in that, The grinding equipment further includes: A clamping and grinding mechanism arranged at equal angles on the top of the base (2); The clamping and grinding mechanism is used to grind the inner and outer surfaces of the elastic ring respectively; An oil hydraulic driving mechanism arranged above the center of the base (2); The oil hydraulic driving mechanism is used to drive the clamping and grinding mechanism to switch the clamping and grinding states of the inner and outer surfaces of the elastic ring; The clamping and grinding mechanism includes two groups of first oil cylinders (5) arranged oppositely on the top of the base (2). Bottom plates (4) are fixed between the bottoms of the two groups of first oil cylinders (5) and the top of the base (2). A first spring (51) is fixedly connected to the inner wall of the end of each group of first oil cylinders (5). The end of the first spring (51) is fixedly connected to a first piston plate (52) that is slidably fitted with the inner wall of the first oil cylinder (5). A connecting column (53) is fixed to the outer wall of the first piston plate (52); A first oil pressure balancing component is arranged at the top of each group of first oil cylinders (5), and the first oil pressure balancing component is used to regulate the oil pressure inside the first oil cylinder (5); The oil hydraulic driving mechanism includes a fixing plate (6) fixed on the processing table (1). A second oil cylinder (61) is fixed to the top of the fixing plate (6). A connecting cylinder (62) communicated with the second oil cylinder (61) is fixed to the top of the second oil cylinder (61). An oil injection port is arranged at the top of the second oil cylinder (61); An electric telescopic rod (63) is installed on the top of the fixing plate (6). The telescopic end of the electric telescopic rod (63) is hermetically and slidably fitted with the bottom of the second oil cylinder (61). A fourth piston plate (64) that is slidably fitted with the inner wall of the second oil cylinder (61) is fixed to the end of the electric telescopic rod (63). A top column (65) that is hermetically and slidably fitted with the inner wall of the connecting cylinder (62) is fixed to the top of the fourth piston plate (64). An annular groove (66) is formed on the outer wall of the lower end of the top column (65); A second oil pressure balancing component for balancing the pressure at the bottom of the fourth piston plate (64) is arranged at the bottom of the second oil cylinder (61), and a third oil pressure balancing component for balancing the pressure inside the connecting cylinder (62) is arranged at the top of the connecting cylinder (62).

2. The grinding device for an elastic ring damper according to claim 1, wherein Motors (511) are installed at the ends of the connecting columns (53) of one of the groups of clamping and grinding mechanisms. The output ends of the motors (511) are connected with grinding rollers (512) through ratchet assemblies. The tops of the connecting columns (53) of the remaining clamping and grinding mechanisms are rotatably connected with clamping rollers (513). The tops of the grinding rollers (512) and the clamping rollers (513) are both arranged in a conical structure; Two groups of connecting columns (53) of each group of clamping and grinding mechanisms are relatively fixed with guide plates (514) at the top. The guide plates (514) are respectively close to the corresponding grinding rollers (512) and clamping rollers (513), and the upper ends of the two groups of guide plates (514) of each group of clamping and grinding mechanisms are relatively provided with extending ends that are inclined towards between the grinding rollers (512) or the clamping rollers (513).

3. An elastic ring damper grinding device according to claim 2, characterized in that, A switch assembly is provided at the bottom of the first oil cylinder (5) of each set of the clamping and grinding mechanisms, and the switch assembly is used to control the opening and closing state of the motor (511) according to the internal pressure of the first oil cylinder (5).

4. An elastic ring damper grinding device according to claim 1, characterized in that, The first oil pressure balance assembly includes a first outer cylinder (54) fixed to the top of the first oil cylinder (5) and communicating with it. A second spring (55) is fixed to the inner wall of the top of the first outer cylinder (54). The bottom of the second spring (55) is connected to a second piston plate (56) that is slidably engaged with the inner wall of the first outer cylinder (54). An air hole is provided at the top of the first outer cylinder (54).

5. An elastic ring damper grinding device according to claim 3, characterized in that, The switch assembly includes a second outer cylinder (57) fixed to the bottom of the first oil cylinder (5) and communicating with it. An opening and closing switch (58) is installed on the inner wall of the bottom of the second outer cylinder (57). A third spring (59) is fixed to the inner wall of the bottom end of the second outer cylinder (57). The top end of the third spring (59) is fixedly connected to a third piston plate (510) that is slidably engaged with the inner wall of the second outer cylinder (57). A push rod facing the opening and closing switch (58) is fixed to the bottom of the third piston plate (510). An air hole is provided at the bottom of the second outer cylinder (57).

6. The grinding device for an elastic ring damper according to claim 1, wherein, The oil hydraulic drive mechanism further includes a first connecting pipe (613) connected to the outer wall of the second oil cylinder (61) at equal angles. The other ends of the first connecting pipes (613) are respectively connected to the first oil cylinders (5) on the outer sides of each set of clamping and grinding mechanisms. The lower outer wall of the connecting cylinder (62) is connected with second connecting pipes (614) at equal angles. The other ends of the second connecting pipes (614) are respectively connected to the first oil cylinders (5) on the inner sides of each set of clamping and grinding mechanisms.

7. An elastic ring damper grinding device according to claim 1, characterized in that, The second oil pressure balance assembly includes a third outer cylinder (67) fixed to the bottom of the second oil cylinder (61) and communicating with it. A fourth spring (68) is fixedly connected to the inner wall of the bottom end of the third outer cylinder (67). The top of the fourth spring (68) is fixedly connected to a fifth piston plate (69) that is slidably engaged with the inner wall of the second oil cylinder (61). An air hole is provided at the bottom of the third outer cylinder (67).

8. The grinding device for an elastic ring damper according to claim 1, characterized in that, The third oil pressure balance assembly includes a fourth outer cylinder (610) fixed to the top of the connecting cylinder (62) and communicating with it. A filling port is provided at the bottom of the fourth outer cylinder (610). A fifth spring (611) is fixed to the inner wall of the top of the fourth outer cylinder (610). The bottom end of the fifth spring (611) is fixed with a sixth piston plate (612) that is slidably engaged with the inner wall of the fourth outer cylinder (610). An air hole is provided at the top of the fourth outer cylinder (610).

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