Production and processing equipment for buffer sleeve of hydraulic oil cylinder

Abstract

The invention relates to the technical field of cushion collar production and processing, and discloses hydraulic oil cylinder cushion collar production and processing equipment which comprises a third connecting pipe, at least three connecting side plates fixedly connected to one end of the third connecting pipe in an annular array mode, and at least three sealing side plates installed on the side, close to the connecting side plates, of the third connecting pipe in an annular array mode. According to the scheme, the polishing fluid in a high-speed vortex state can be used for effectively impacting burrs on the smooth surface of the buffer sleeve and burrs in a grain area, so that the burrs rapidly fall off. According to the scheme, gravel in fluid can be automatically and uniformly ground, the stability of impact grinding on burrs can be guaranteed, the gravel blocking phenomenon in equipment can be avoided, and the operation stability of the equipment is improved. According to the scheme, the liquid level of polishing fluid in the feeding box is the highest liquid level in equipment, gas can be prevented from being mixed into circulation of the polishing fluid, and the polishing effect is improved.

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 buffer sleeve is deburred by manual grinding, which produces a lot of dust and has low efficiency.

[0009] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: hydraulic cylinder buffer sleeve production and processing equipment, including a grinding component for grinding off 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 in an annular array on the side of the third connecting pipe close to the connecting side plate, the connecting side plate and the sealing side plate together constitute a grinding cylinder, and the third connecting pipe, the connecting side plate, and the sealing side plate are sealed and connected; on the inner wall of the connecting side plate, at least three vortex guide plates are fixedly connected along the length direction of the connecting side plate, the vortex guide plates on all the connecting side plates are distributed in the same position, and the vortex guide plates at the same position on all the connecting side plates pass through the same circular trajectory; the vortex guide plates located on the same circular trajectory jointly guide the vortex of the fluid flowing through; The two ends of the grinding component are connected to a circulation component for fluid circulation, the circulation component includes a circulation pipe, the middle of the circulation pipe is connected to a fluid pump, and the two ends of the circulation pipe are respectively connected to the grinding cylinder and the third connection pipe; By adopting the above technical solution, the buffer sleeve is placed inside the grinding cylinder, and the circulation component is used to circulate the grinding fluid in the grinding cylinder. The grinding fluid is water mixed with gravel. The grinding fluid is affected by the vortex guide plate, and high-speed vortices are generated inside the grinding cylinder and at both ends. The burrs on the smooth surface of the buffer sleeve and the burrs in the textured area can be effectively impacted, so that the burrs fall off quickly.

[0010] As a preferred solution, the buffer sleeve production and processing equipment also includes a flow-limiting component, which includes a first connecting tube that is sealed and connected to one end of the grinding cylinder away from the third connecting tube, a stepped half-tube is fixedly connected to the bottom of one end of the first connecting tube away from the grinding cylinder, a second connecting tube is fixedly connected to one end of the stepped half-tube away from the first connecting tube, and the highest point of the step is the end of the stepped half-tube close to the first connecting tube. A sealing half-tube is provided on the detachable cover above the stepped half-tube to facilitate equipment maintenance, and the joints between the sealing half-tube, the stepped half-tube, the second connecting tube, and the first connecting tube are sealed; By adopting the above technical scheme, the circulation flow direction of the grinding fluid is set to flow from the flow limiting component to the grinding component. During the circulation process, if the distribution uniformity of the gravel in the water flow is poor, that is, the gravel ratio of the grinding fluid in some areas is much higher than the gravel ratio of the grinding fluid in other areas, when the grinding fluid with a high gravel ratio flows through the step half-pipe, part of the gravel will be intercepted by the step to balance the gravel ratio of each area. After the grinding fluid with a low gravel ratio enters the grinding cylinder, it is easier to generate a higher-speed vortex due to the low density of the gravel. The high-speed vortex can affect the step half-pipe, so that a low-speed vortex is also generated at the step half-pipe, and the gravel intercepted at the step half-pipe is rolled up, so as to achieve a balance of the gravel ratio of each area of ​​the grinding fluid. This can not only ensure the stability of the impact grinding of burrs, but also avoid gravel blockage in the equipment, thereby improving the stability of equipment operation.

[0011] As a preferred solution, the circulation component further comprises a feeding box and a trumpet-shaped connecting pipe, the bottom end of one side wall of the feeding box is fixedly connected with the second connecting pipe, the middle height of one side wall of the feeding box is fixedly connected with the circulation pipe, the top of the feeding box is open, and a cover plate is installed at the opening in an openable manner; the third connecting pipe and the circulation pipe are connected and connected by a trumpet-shaped connecting pipe to adapt to changes in pipe diameter; By adopting the above technical solution, the polishing fluid can be directly injected into the equipment from the top opening of the feeding box, which is convenient and quick. When the equipment is in operation, the polishing fluid level inside the feeding box is the highest level in the equipment.

[0012] As a preferred solution, the volume ratio of gravel to water in the water mixed with gravel is ≥1 / 6 to ensure the gravel density with good grinding and deburring effect, and also to reduce the selection restrictions of the fluid pump. The use of a high-power water pump for the fluid pump can ensure the normal operation of the equipment.

[0013] As a preferred solution, the volume ratio of gravel to water is 1 / 4. When grinding and deburring buffer sleeves with complex structures, including buffer sleeves with large volume or complex surface patterns, the above-mentioned buffer sleeves have more burrs than ordinary buffer sleeves due to the high complexity of the processing technology. The use of high-density gravel can efficiently remove the burrs while ensuring that the probability of gravel clogging is low. It should be noted that the use of this solution will reduce the functionality of the stepped half-pipe.

[0014] As a preferred solution, the step angle of the stepped half-tube is 90°, which can achieve a better gravel retention effect and avoid the gravel being stuck at the angle, thereby avoiding the phenomenon that some gravel cannot enter the grinding fluid circulation.

[0015] As a preferred solution, the sealed half-pipe is transparent, which makes it easy to observe the accumulation of gravel on the step half-pipe, the flow of water and gravel, and facilitates maintenance.

[0016] As a preferred solution, the sealing side panel is transparent, which is conducive to observing the flow of water and gravel inside the grinding cylinder, as well as the status of the buffer sleeve. The sealing side panel is detachably installed on the side of the connecting side panel, which is convenient for placing and removing the buffer sleeve; as a preferred solution, the sealing side panel is installed between two adjacent connecting side panels by means of interference fit in the form of a snap.

[0017] As a preferred solution, the upper surfaces of all the steps of the stepped half-tube are arc-shaped structures, and the sealing half-tube is arc-shaped, so that the interior of the flow-limiting component is easily affected by the eddy current in the grinding cylinder, and the resistance to the eddy current is small, so that the interior of the flow-limiting component is more likely to generate a low-speed eddy current; The adoption of the above technical solution can reduce the requirements for the purity of gravel, and gravel with low mud content can be put into use directly. The flushing function of turbulent flow can prevent mud and gravel from filling each other and accumulating at the junction of the step half-pipe.

[0018] As a preferred solution, the buffer sleeve production and processing equipment also includes a connecting frame that can support and fix the current limiting components, grinding components, and circulation components, and a supporting frame fixed to the connecting frame for high filling support, so that the equipment can be installed stably. The connecting frame can be used to place multiple devices together to carry out centralized processing and production of the buffer sleeve deburring process, thereby improving the equipment's operating stability and handling flexibility. Beneficial Effects

[0019] This solution utilizes a high-speed eddy current state of polishing fluid to effectively impact the burrs on the smooth surface of the buffer sleeve and the burrs in the textured area, so that the burrs fall off quickly.

[0020] This solution can automatically and evenly grind the grit in the fluid, which not only ensures the stability of impact grinding of burrs, but also avoids the grit clogging in the equipment, thereby improving the operation stability of the equipment.

[0021] This solution designs the polishing fluid level inside the feeding box to be the highest level in the equipment, which can prevent gas from mixing into the circulation of the polishing fluid and improve the polishing effect.

[0022] This solution can deburr a buffer sleeve with a complex structure, including a buffer sleeve with a large volume or a buffer sleeve with complex patterns on the surface.

[0023] This solution designs a transparent sealing side panel, which is conducive to observing the flow of water and gravel inside the grinding cylinder, as well as the status of the buffer sleeve.

[0024] The upper surfaces of all the steps of the stepped half-pipe designed in this scheme are arc-shaped structures. With the help of the image of eddy current, the requirements for the purity of gravel can be reduced, and gravel with low mud content can also be put into use directly, reducing the cost of use.

[0025] The prior art uses manual grinding to remove burrs from the buffer sleeve, which produces a lot of dust and has low efficiency. The present invention utilizes eddy current to remove burrs from the buffer sleeve in a contactless manner, which has low safety risks and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided by Embodiment 1 of the present invention; Figure 2 An exploded view of a portion of the structure provided in Example 1 of the present invention; Figure 3 A partial disassembly diagram of the overall structure provided in Example 1 of the present invention; Figure 4 A schematic diagram of the centralized production installation provided in Example 1 of the present invention.

[0028] Description of reference numerals: 100, current limiting component; 101, stepped half-tube; 102, first connecting tube; 103, second connecting tube; 104, sealing half-tube; 200, polishing component; 201, third connecting tube; 202, connecting side plate; 203, sealing side plate; 204, vortex guide plate; 300, circulation component; 301, trumpet-shaped connecting tube; 302, fluid pump; 303, circulation tube; 304, feeding box; 401, connecting frame; 402, supporting frame. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-3As shown, the hydraulic cylinder buffer sleeve production and processing equipment provided in Example 1 of the present invention includes a grinding component 200 for grinding off burrs on the surface of the buffer sleeve; the grinding component 200 includes a third connecting tube 201, and three connecting side plates 202 fixedly connected to one end of the third connecting tube 201 in an annular array, and three sealing side plates 203 installed in an annular array on the 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 constitute a grinding cylinder. The three connecting pipes 201, the connecting side plate 202, and the sealing side plate 203 are sealed and connected; on the inner wall of the connecting side plate 202, three vortex guide pieces 204 are fixedly connected along the length direction of the connecting side plate 202, and the vortex guide pieces 204 on all the connecting side plates 202 are distributed at the same position, and 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 with a circulation component 300 for fluid circulation, and the circulation component 300 includes a circulation pipe 303, and the middle of the circulation pipe 303 is connected with a fluid pump 302, and both ends of the circulation pipe 303 are respectively connected with the polishing cylinder and the third connection pipe 201; By adopting the above technical solution, the buffer sleeve is placed inside the grinding cylinder, and the circulation component 300 is used to circulate the grinding fluid in the grinding cylinder. The grinding fluid is water mixed with gravel. The grinding fluid is affected by the vortex guide plate 204, and high-speed vortices are generated inside the grinding cylinder and at both ends. The burrs on the smooth surface of the buffer sleeve and the burrs in the textured area can be effectively impacted, so that the burrs fall off quickly.

[0031] The buffer sleeve production and processing equipment also includes a flow limiting component 100, which includes a first connecting tube 102 that is sealed and connected to one end of the grinding cylinder away from the third connecting tube 201, a stepped half-tube 101 is fixedly connected to the bottom of one end of the first connecting tube 102 away from the grinding cylinder, and a second connecting tube 103 is fixedly connected to one end of the stepped half-tube 101 away from the first connecting tube 102. The end of the stepped half-tube 101 close to the first connecting tube 102 is the highest point of the step, and a detachable cover above the stepped half-tube 101 is provided with a sealing half-tube 104 to facilitate equipment maintenance, 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; By adopting the above technical solution, the circulation flow direction of the polishing fluid is set to flow from the flow limiting component 100 to the polishing component 200. During the circulation process, if the distribution uniformity of the gravel in the water flow is poor, that is, the gravel ratio of the polishing fluid in some areas is much higher than the gravel ratio of the polishing fluid in other areas, when the polishing fluid with a high gravel ratio flows through the stepped half-pipe 101, part of the gravel will be intercepted by the steps to balance the gravel ratio of each area. After the polishing fluid with a low gravel ratio enters the polishing cylinder, it is easier to generate a higher-speed vortex due to the low density of the gravel. The high-speed vortex can affect the stepped half-pipe 101, so that a low-speed vortex is also generated at the stepped half-pipe 101, and the gravel intercepted at the stepped half-pipe 101 is rolled up, so as to achieve a balance of the gravel ratio of each area of ​​the polishing fluid, which can not only ensure the stability of the impact grinding of burrs, but also avoid gravel blockage in the equipment, thereby improving the stability of equipment operation.

[0032] The circulation component 300 also includes a feeding box 304 and a trumpet-shaped connecting pipe 301. The bottom end of one side wall of the feeding box 304 is fixedly connected to the second connecting pipe 103, and the middle height of one 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 at the opening in an openable manner. The third connecting pipe 201 and the circulation pipe 303 are connected and connected by the trumpet-shaped connecting pipe 301 to adapt to the change of pipe diameter. By adopting the above technical solution, the polishing fluid can be directly injected into the equipment from the top opening of the feeding box 304, which is convenient and quick. When the equipment is in operation, the polishing fluid level inside the feeding box 304 is the highest level in the equipment, which can avoid gas mixing into the circulation of the polishing fluid and improve the polishing effect.

[0033] The volume ratio of the water mixed with gravel is 1 / 6 to ensure the density of gravel with good grinding and deburring effect, and can also reduce the selection restrictions of the fluid pump 302. The fluid pump 302 uses a high-power water pump to ensure the normal operation of the equipment. In another embodiment 2, the volume ratio of gravel to water is 1 / 4. When grinding and deburring a buffer sleeve with a complex structure, including a buffer sleeve with a large volume or a surface with complex patterns, the above-mentioned buffer sleeve has more burrs than ordinary buffer sleeves due to the high complexity of the processing technology. The use of high-density gravel can remove the burrs efficiently, while ensuring that the probability of gravel clogging is low. It should be noted that the use of this solution will reduce the functionality of the stepped half pipe 101.

[0034] The step angle of the stepped half-tube 101 is 90°, which can achieve a better gravel retention effect and prevent the gravel from being stuck at an angle, thereby preventing some gravel from being unable to enter the grinding fluid circulation.

[0035] The sealed half pipe 104 is transparent, which makes it easy to observe the accumulation of gravel on the step half pipe 101, the flow of water and gravel, and is conducive to maintenance.

[0036] The sealing side plate 203 is transparent, which is convenient for observing the flow of water and gravel inside the grinding cylinder, as well as the status of the buffer sleeve. The sealing side plate 203 is detachably installed on the side of the connecting side plate 202, which is convenient for placing and removing the buffer sleeve. As a preferred embodiment, the sealing side plate 203 is installed between two adjacent connecting side plates 202 by means of an interference fit in the form of a snap.

[0037] The upper surfaces of all the steps of the stepped half-tube 101 are arc-shaped structures, and the sealing half-tube 104 is arc-shaped, so that the interior of the flow-limiting component 100 is easily affected by the eddy current in the grinding cylinder, and the resistance to the eddy current is small, so that the interior of the flow-limiting component 100 is more likely to generate a low-speed eddy current; The adoption of the above technical solution can reduce the requirements for the purity of gravel, and gravel with low mud content can be directly put into use. The flushing function of turbulence can be used to prevent mud and gravel from filling each other and accumulating at the junction of the steps of the step half pipe 101.

[0038] like Figure 4 As shown, the buffer sleeve production and processing equipment also includes a connecting frame 401 that can support and fix the current 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, so that the equipment can be installed stably, and multiple devices can be placed together using the connecting frame 401 to carry out centralized processing and production of the buffer sleeve deburring process, thereby improving the equipment operation stability and transportation flexibility.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A 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 a circulation component (300) is used to circulate the grinding fluid in the grinding cylinder.

2. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 is characterized in that: 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.

3. A hydraulic cylinder buffer sleeve production and processing equipment according to claim 1 or 2, 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).

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

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

6. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 2 is characterized in that: The step angle of the stepped half pipe (101) is 90°.

7. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 2 is characterized by: The sealing half tube (104) is transparent.

8. 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).

9. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 2 is characterized by: 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.

10. The hydraulic cylinder buffer sleeve production and processing equipment according to claim 3, characterized in that: 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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