A production and processing equipment for hydraulic cylinder buffer sleeves

Abstract

The present invention relates to the technical field of production and processing of buffer sleeves, and discloses a production and processing device for hydraulic cylinder buffer sleeves, including a third connecting pipe, and at least three connecting side plates fixedly connected to one end of the third connecting pipe in an annular array, and at least three sealing side plates installed on the side of the third connecting pipe close to the connecting side plates in an annular array. This solution utilizes the grinding fluid in a high-speed eddy current state to effectively impact the burrs on the smooth surface of the buffer sleeve and the burrs in the textured area, causing the burrs to fall off quickly. This solution can automatically and evenly grind the grit in the grinding fluid, which can not only ensure the stability of impact grinding on the burrs, but also avoid the phenomenon of grit blockage in the equipment, improving the operation stability of the equipment. This solution designs the liquid level of the grinding fluid in the feeding box as the highest liquid level in the equipment, which can avoid the mixing of gas into the circulation of the grinding fluid and improve the grinding effect.

Description

Technical Field

[0001] The invention relates to the technical field of buffer sleeve production and processing, and in particular to a hydraulic cylinder buffer sleeve production and processing equipment. Background Art

[0002] The hydraulic cylinder buffer sleeve is a device used in the hydraulic cylinder. Its main function is to generate a buffer force by compressing the oil when the cylinder moves to near the end of the stroke, thereby slowing down the movement speed of the piston rod, reducing impact and vibration, and protecting the cylinder and related components.

[0003] The production process of hydraulic cylinder buffer sleeves includes design, material selection, mold manufacturing, molding processing, fine finishing and deburring, and quality inspection. In the existing technology, the deburring process requires manual grinding, which has high safety risks and low deburring efficiency.

[0004] The utility model patent with authorization announcement number CN205154807U: A high-pressure cylinder buffer sleeve, discloses a buffer sleeve technical solution in which the angle between the first transition slope and the axis of the buffer sleeve body is designed to be 5°~45°, so that the surface quality of the buffer slope is good and the position accuracy is high.

[0005] The Chinese utility model patent with authorization announcement number CN202718966U: A hydraulic cylinder buffer sleeve discloses a technical solution in which the outer surface of a steel cone is designed with 3-6 buffer slopes axially spaced apart, which can buffer the movement speed of the piston from fast to slow, and the piston slowly stops when approaching the inner end surface of the cylinder head.

[0006] The Chinese utility model patent with authorization announcement number CN217019668U: A tooling for processing the outer circle of a cylinder buffer sleeve, discloses a technical solution that can sleeve multiple buffer sleeves according to the movement of a telescopic core shaft, thereby meeting the processing needs of large quantities of buffer sleeves.

[0007] The above patents respectively improve the buffering effect of the buffer sleeve itself, and design processing equipment for the buffer sleeve with limited material to steel; the prior art uses manual grinding to remove burrs from the buffer sleeve, which produces a lot of dust and has low efficiency, and the prior art lacks equipment for removing burrs from the buffer sleeve, so the field is in urgent need of a hydraulic cylinder buffer sleeve production and processing equipment to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to provide a production and processing device for a hydraulic cylinder buffer sleeve, so as to solve the technical problem that the existing technology uses manual grinding to remove burrs from the buffer sleeve, resulting in large dust and low efficiency.

[0009] To achieve the above object, the present invention provides the following technical solutions: a production and processing device for a hydraulic cylinder buffer sleeve, including a grinding component for grinding off the burrs on the surface of the buffer sleeve; the grinding component includes a third connecting pipe, and at least three connecting side plates fixedly connected to one end of the third connecting pipe in an annular array, and at least three sealing side plates installed on the third connecting pipe near the connecting side plates in an annular array. The connecting side plates and the sealing side plates jointly form a grinding cylinder body, and the third connecting pipe, the connecting side plates, and the sealing side plates are hermetically connected; on the inner wall of the connecting side plates, at least three eddy current guiding pieces are fixedly connected along the length direction of the connecting side plates. The distribution positions of the eddy current guiding pieces on all the connecting side plates are the same, and the eddy current guiding pieces at the same position on all the connecting side plates pass through the same circular trajectory; the eddy current guiding pieces located on the same circular trajectory jointly conduct eddy current guidance on the flowing fluid.

[0010] Both ends of the grinding component are connected to a circulation component that plays a role in fluid circulation. The circulation component includes a circulation pipe, and a fluid pump is connected and communicated in the middle of the circulation pipe. The two ends of the circulation pipe are respectively connected and communicated with the grinding cylinder body and the third connecting pipe;

[0011] Adopting the above technical solutions, the buffer sleeve is placed inside the grinding cylinder body, and the grinding fluid in the grinding cylinder body is circulated by the circulation component. The grinding fluid is water mixed with sand. Affected by the eddy current guiding pieces, high-speed eddies will be generated inside and at both ends of the grinding cylinder body, which can effectively impact the burrs on the smooth surface of the buffer sleeve and the burrs in the textured area, causing the burrs to fall off quickly.

[0012] As a preferred solution, the production and processing device for the buffer sleeve further includes a flow limiting component. The flow limiting component includes a first connecting pipe hermetically connected to the end of the grinding cylinder body far from the third connecting pipe. At the bottom of the end of the first connecting pipe far from the grinding cylinder body, a stepped half pipe is fixedly connected. At the end of the stepped half pipe far from the first connecting pipe, a second connecting pipe is fixedly connected. The end of the stepped half pipe near the first connecting pipe is the highest point of the step. A sealing half pipe is detachably covered above the stepped half pipe for convenient equipment maintenance. The joints between the sealing half pipe, the stepped half pipe, the second connecting pipe, and the first connecting pipe are sealed;

[0013] With the above technical solution, the circulating flow direction of the grinding fluid is set to flow from the flow-limiting component to the grinding component. During the circulation of the grit, if there is a phenomenon of poor uniformity of the grit distribution in the water flow, that is, the grit content ratio of the grinding fluid in some areas is much higher than that in other areas of the grinding fluid. When the grinding fluid with a high grit content ratio flows through the stepped half pipe, some grit will be intercepted by the steps to balance the grit content ratio of each area. After the grinding fluid with a low grit content ratio enters the grinding cylinder, due to the low density of the grit content, it is easier to generate a higher-speed eddy current. The high-speed eddy current can affect the stepped half pipe, causing a low-speed eddy current to be generated at the stepped half pipe, rolling up the grit intercepted at the stepped half pipe, and realizing the balance of the grit content ratio of each area of the grinding fluid. This can not only ensure the stability of the impact grinding of the burrs, but also avoid the phenomenon of grit blockage in the equipment, and improve the operation stability of the equipment.

[0014] As a preferred solution, the circulating component further includes a feeding box and a horn-shaped connecting pipe. The bottom end of one side wall of the feeding box is fixedly connected and communicated with the second connecting pipe, the middle height of one side wall of the feeding box is fixedly connected and communicated with the circulating pipe, the top of the feeding box is open, and a cover plate is installed in an opening and closing manner at the opening; the third connecting pipe and the circulating pipe are connected and communicated by a horn-shaped connecting pipe to adapt to the change of the pipe diameter;

[0015] With the above technical solution, the grinding fluid can be directly injected into the equipment from the top opening of the feeding box, which is convenient and fast. Under the operating state of the equipment, the liquid level of the grinding fluid inside the feeding box is the highest liquid level inside the equipment.

[0016] As a preferred solution, for the water mixed with grit, the volume ratio of grit to water ≥ 1 / 6 to ensure a grit content density with a good burr grinding and removal effect, and it can also reduce the selection limit of the fluid pump. Using a high-power water pump for the fluid pump can ensure the normal operation of the equipment.

[0017] As a preferred solution, the volume ratio of grit to water is 1 / 4. When deburring a complex buffer sleeve, including a buffer sleeve with a large volume or a complex surface texture, the above buffer sleeve has more burrs than ordinary buffer sleeves due to the high complexity of the processing technology. Using high-density grit can efficiently remove the burrs while ensuring a low probability of grit blockage. It should be noted that using this solution will reduce the functionality of the stepped half pipe.

[0018] As a preferred solution, the step angle of the stepped half pipe is 90°, which can obtain a better grit interception effect, and at the same time can avoid the angle getting stuck with the grit and prevent the phenomenon that some grit cannot enter the grinding fluid circulation.

[0019] As a preferred solution, the sealed half pipe is transparent, which is convenient for observing the grit accumulation condition on the stepped half pipe, the flow condition of the water flow and the grit, and is conducive to maintenance.

[0020] As a preferred solution, the sealed side plate is transparent, which is conducive to observing the flow of water and grit inside the grinding cylinder and the state of the buffer sleeve. The sealed side plate is detachably installed on the side of the connecting side plate, facilitating the placement and removal of the buffer sleeve. As a preferred solution, the sealed side plate is installed between two adjacent connecting side plates by interference fit in the form of a buckle.

[0021] As a preferred solution, the upper surfaces of all steps of the stepped half-tube are arc-shaped structures, and the sealed half-tube is arc-shaped, making it easy for the internal flow-limiting component to be affected by the eddy current inside the grinding cylinder, with little resistance to the eddy current, and making it easier to generate low-speed eddy currents inside the flow-limiting component.

[0022] By adopting the above technical solution, the requirement for the purity of the grit can be reduced, and grit with a low mud content can also be directly put into use. Utilizing the flushing function of the turbulent flow can avoid the mutual filling of mud and grit and their accumulation at the step joints of the stepped half-tube.

[0023] As a preferred solution, the buffer sleeve production and processing equipment further includes a connecting frame body that can support and fix the flow-limiting component, the grinding component, and the circulation component, and a support frame body fixed on the connecting frame body for height filling and support, making the equipment installation stable. By using the connecting frame body to centrally place multiple pieces of equipment, centralized processing and production of the deburring process of the buffer sleeve can be carried out, improving the operation stability and handling flexibility of the equipment. Beneficial effects

[0024] This solution utilizes the grinding fluid in a high-speed eddy current state to effectively impact the burrs on the smooth surface of the buffer sleeve and the burrs in the textured area, causing the burrs to fall off quickly.

[0025] This solution can automatically and evenly distribute the grit in the grinding fluid, not only ensuring the stability of impact grinding on the burrs but also avoiding the phenomenon of grit blockage inside the equipment, improving the operation stability of the equipment.

[0026] This solution designs the liquid level of the grinding fluid inside the feeding box to be the highest liquid level inside the equipment, which can avoid gas mixing into the circulation of the grinding fluid and improve the grinding effect.

[0027] This solution can deburr buffer sleeves with complex structures, including buffer sleeves with large volumes or complex textures on the surface.

[0028] This solution designs a transparent sealed side plate, which is conducive to observing the flow of water and grit inside the grinding cylinder and the state of the buffer sleeve.

[0029] This solution designs the upper surfaces of all steps of the stepped half-tube to be arc-shaped structures. With the help of the image of the eddy current, the requirement for the purity of the grit can be reduced, and grit with a low mud content can also be directly put into use, reducing the use cost.

[0030] In the prior art, manual grinding is used to deburr the buffer sleeve, which results in a large amount of dust and low efficiency. In this solution, eddy currents are used to perform non-contact deburring on the buffer sleeve, with low safety hazards and high efficiency. Brief Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is the overall structure schematic diagram provided for Embodiment 1 of the present invention;

[0033] Figure 2 It is the exploded view of the partial structure provided for Embodiment 1 of the present invention;

[0034] Figure 3 It is the partial disassembly diagram of the overall structure provided for Embodiment 1 of the present invention;

[0035] Figure 4 It is the centralized production and installation schematic diagram provided for Embodiment 1 of the present invention.

[0036] Description of the Reference Numerals:

[0037] 100, current-limiting component; 101, stepped half-tube; 102, first connection pipe; 103, second connection pipe; 104, sealing half-tube; 200, grinding component; 201, third connection pipe; 202, connection side plate; 203, sealing side plate; 204, eddy current guiding piece; 300, circulation component; 301, flared connection pipe; 302, fluid pump; 303, circulation pipe; 304, feeding box; 401, connection frame body; 402, support frame body. Detailed Embodiments

[0038] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail in conjunction with the drawings.

[0039] Such as Figures 1-3As shown in the figure, the production and processing equipment for the hydraulic cylinder buffer sleeve provided in Embodiment 1 of the present invention includes a grinding component 200 for grinding off the burrs on the surface of the buffer sleeve; the grinding component 200 includes a third connecting pipe 201, and three connecting side plates 202 fixedly connected in an annular array at one end of the third connecting pipe 201, and three sealing side plates 203 installed in an annular array on the side of the third connecting pipe 201 close to the connecting side plates 202. The connecting side plates 202 and the sealing side plates 203 together form a grinding cylinder body, and the third connecting pipe 201, the connecting side plates 202, and the sealing side plates 203 are hermetically connected; on the inner wall of the connecting side plate 202, three eddy current guiding pieces 204 are fixedly connected along the length direction of the connecting side plate 202. The distribution positions of the eddy current guiding pieces 204 on all the connecting side plates 202 are the same, and the eddy current guiding pieces 204 at the same positions on all the connecting side plates 202 pass through the same circular trajectory; the eddy current guiding pieces 204 located on the same circular trajectory together conduct eddy current guidance on the flowing fluid.

[0040] Both ends of the grinding component 200 are connected to a circulation component 300 that plays a role in fluid circulation. The circulation component 300 includes a circulation pipe 303. A fluid pump 302 is connected and communicated in the middle of the circulation pipe 303. Both ends of the circulation pipe 303 are respectively connected and communicated with the grinding cylinder body and the third connecting pipe 201.

[0041] Adopting the above technical solution, the buffer sleeve is placed inside the grinding cylinder body, and the grinding fluid is circulated inside the grinding cylinder body by using the circulation component 300. The grinding fluid is water mixed with grit. Affected by the eddy current guiding pieces 204, high-speed eddies will be generated inside and at both ends of the grinding cylinder body, which can effectively impact the burrs on the smooth surface of the buffer sleeve and the burrs in the textured area, causing the burrs to fall off quickly.

[0042] The production and processing equipment for the buffer sleeve further includes a flow limiting component 100. The flow limiting component 100 includes a first connecting pipe 102 hermetically connected to the end of the grinding cylinder body far from the third connecting pipe 201. A stepped half pipe 101 is fixedly connected to the bottom of the end of the first connecting pipe 102 far from the grinding cylinder body. A second connecting pipe 103 is fixedly connected to the end of the stepped half pipe 101 far from the first connecting pipe 102. The end of the stepped half pipe 101 close to the first connecting pipe 102 is the highest point of the step. A sealing half pipe 104 is detachably covered above the stepped half pipe 101 for convenient equipment maintenance. The joints between the sealing half pipe 104, the stepped half pipe 101, the second connecting pipe 103, and the first connecting pipe 102 are sealed.

[0043] With the above technical solution, the circulating flow direction of the grinding fluid is set to flow from the flow-limiting component 100 to the grinding component 200. During the circulation of the grit, if there is a phenomenon of poor uniformity of the grit distribution in the water flow, that is, the grit content ratio of the grinding fluid in some areas is much higher than that in other areas. When the grinding fluid with a high grit content ratio flows through the stepped half-pipe 101, some grit will be intercepted by the steps to balance the grit content ratio in each area. When the grinding fluid with a low grit content ratio enters the grinding cylinder, due to the low density of the grit, it is easier to generate a higher-speed eddy current. The high-speed eddy current can affect the area of the stepped half-pipe 101, causing a low-speed eddy current to be generated at the stepped half-pipe 101, and rolling up the grit intercepted at the stepped half-pipe 101, realizing the balance of the grit content ratio in each area of the grinding fluid. This can not only ensure the stability of impact grinding on burrs, but also avoid the phenomenon of grit blockage in the equipment, improving the operating stability of the equipment.

[0044] The circulation component 300 further includes a feeding box 304 and a flared connecting pipe 301. The bottom end of one side side wall of the feeding box 304 is fixedly connected to the second connecting pipe 103, the middle height of one side side wall of the feeding box 304 is fixedly connected to the circulation pipe 303, the top of the feeding box 304 is open, and a cover plate is installed in an opening and closing manner at the opening; The third connecting pipe 201 and the circulation pipe 303 are connected and communicated by means of a flared connecting pipe 301 to adapt to the change of pipe diameter;

[0045] With the above technical solution, the grinding fluid can be directly injected into the equipment from the top opening of the feeding box 304, which is convenient and fast. When the equipment is in operation, the liquid level of the grinding fluid inside the feeding box 304 is the highest liquid level inside the equipment, which can avoid gas mixing into the circulation of the grinding fluid and improve the grinding effect.

[0046] The water mixed with grit has a volume ratio of grit to water of 1 / 6 to ensure a grit density with good burr grinding and deburring effect, and can also reduce the selection limit of the fluid pump 302. Using a high-power water pump for the fluid pump 302 can ensure the normal operation of the equipment. In another embodiment 2, the volume ratio of grit to water is 1 / 4. When deburring a complex buffer sleeve, including a buffer sleeve with a large volume or a complex surface texture, the above buffer sleeve has more burrs than ordinary buffer sleeves due to the high complexity of the processing technology. Using high-density grit can efficiently remove the burrs while taking into account ensuring a low probability of grit blockage. It should be noted that using this solution will reduce the functionality of the stepped half-pipe 101.

[0047] The step angle of the stepped half-pipe 101 is 90°, which can obtain a better grit interception effect, and at the same time can avoid the angle getting stuck with grit, avoiding the phenomenon that some grit cannot enter the circulation of the grinding fluid.

[0048] The sealed half-pipe 104 is transparent, which is convenient for observing the accumulation condition of grit on the stepped half-pipe 101, the flow condition of water and grit, and is conducive to maintenance.

[0049] The sealed side plate 203 is transparent, which is conducive to observing the flow condition of water and grit inside the grinding cylinder, and observing the state of the buffer sleeve. The sealed side plate 203 is detachably installed on the side of the connecting side plate 202, which is convenient for placing and taking the buffer sleeve; As a preferred solution, the sealed side plate 203 is installed between two adjacent connecting side plates 202 by interference fit in the form of a buckle.

[0050] The upper surfaces of all the steps of the stepped half-pipe 101 are arc-shaped structures, and the sealed half-pipe 104 is arc-shaped, so that the inside of the flow-limiting component 100 is easily affected by the eddy current in the grinding cylinder, with little resistance to the eddy current, and it is easier to generate low-speed eddy currents inside the flow-limiting component 100;

[0051] Adopting the above technical solution can reduce the requirement for the purity of grit, and grit with a low mud content can also be directly put into use. By using the flushing function of turbulent flow, it is possible to avoid the mutual filling of mud and grit and their accumulation at the step joints of the stepped half-pipe 101.

[0052] Such as Figure 4 As shown, the buffer sleeve production and processing equipment further includes a connecting frame body 401 that can support and fix the flow-limiting component 100, the grinding component 200, and the circulation component 300, and a support frame body 402 fixed on the connecting frame body 401 for height filling and support, so that the equipment is installed stably. By using the connecting frame body 401, multiple sets of equipment are placed together for centralized processing and production of the deburring process of the buffer sleeve, improving the operation stability and handling flexibility of the equipment.

[0053] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic cylinder buffer sleeve production and processing equipment, characterized by: The invention comprises a grinding component (200) for grinding off burrs on the surface of the buffer sleeve; the grinding component (200) comprises a third connecting tube (201), and at least three connecting side plates (202) fixedly connected to one end of the third connecting tube (201) in an annular array, and at least three sealing side plates (203) installed in an annular array on a side of the third connecting tube (201) close to the connecting side plate (202), the connecting side plate (202) and the sealing side plate (203) together forming a grinding cylinder, and the third connecting tube (201), the connecting side plate (202) and the sealing side plate (203) are sealed and connected; at least three vortex guide pieces (204) are fixedly connected on the inner wall of the connecting side plate (202) along the length direction of the connecting side plate (202); the vortex guide pieces (204) on all the connecting side plates (202) are distributed at the same position; the vortex guide pieces (204) at the same position on all the connecting side plates (202) pass through the same circular trajectory; the vortex guide pieces (204) located on the same circular trajectory jointly guide the vortex of the fluid flowing through; Both ends of the polishing component (200) are connected to a circulation component (300) for fluid circulation, the circulation component (300) comprises a circulation pipe (303), the middle of the circulation pipe (303) is connected to a fluid pump (302), and both ends of the circulation pipe (303) are respectively connected to the polishing cylinder and the third connection pipe (201); The buffer sleeve is placed inside the grinding cylinder, and the grinding fluid is circulated in the grinding cylinder by using a circulation component (300); The buffer sleeve production and processing equipment also includes a flow limiting component (100), the flow limiting component (100) including a first connecting tube (102) sealed and connected to an end of the grinding cylinder away from the third connecting tube (201), a stepped half-tube (101) fixedly connected to the bottom of the end of the first connecting tube (102) away from the grinding cylinder, a second connecting tube (103) fixedly connected to an end of the stepped half-tube (101) away from the first connecting tube (102), the highest point of the step at the end of the stepped half-tube (101) close to the first connecting tube (102), a sealing half-tube (104) provided on a detachable cover above the stepped half-tube (101), and the joints between the sealing half-tube (104), the stepped half-tube (101), the second connecting tube (103) and the first connecting tube (102) are sealed; The upper surfaces of all the steps of the stepped half-tube (101) are arc-shaped structures, and the sealing half-tube (104) is also arc-shaped.

2. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized in that: The circulation component (300) further comprises a feeding box (304) and a trumpet-shaped connecting pipe (301); the bottom end of a side wall of the feeding box (304) is fixedly connected to the second connecting pipe (103); the middle height of a side wall of the feeding box (304) is fixedly connected to the circulation pipe (303); the top end of the feeding box (304) is open, and a cover plate is installed at the opening in an openable manner; the third connecting pipe (201) and the circulation pipe (303) are connected and communicated with each other by means of the trumpet-shaped connecting pipe (301).

3. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized in that: The polishing fluid is water mixed with gravel; the volume ratio of the water mixed with gravel to water is ≥1 / 6.

4. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 3 is characterized by: The volume ratio of gravel to water is 1 / 4.

5. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized in that: The step angle of the stepped half pipe (101) is 90°.

6. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized by: The sealing half tube (104) is transparent.

7. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized by: The sealing side plate (203) is transparent, and the sealing side plate (203) is detachably mounted on the side of the connecting side plate (202).

8. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 2 is characterized by: The buffer sleeve production and processing equipment also includes a connecting frame (401) capable of supporting and fixing the flow limiting component (100), the grinding component (200), and the circulation component (300), and a supporting frame (402) fixedly connected to the connecting frame (401) for high filling support.

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