Linear scanning point coordination oil cylinder navigation method, navigation axis, navigation component and industrial oil cylinder

Abstract

The present application belongs to the technical field of pressure cylinders, and specifically relates to a linear scanning point-coordinated cylinder navigation method, a navigation axis, a navigation assembly, and an industrial cylinder. The linear scanning point-coordinated cylinder navigation method comprises a point-coordinated step and a linear scanning step; in the point-coordinated step, point-contact is formed between the navigation component and the navigation groove; in the linear scanning step, the point-contact between the navigation component and the navigation groove is maintained, and the navigation component traverses the navigation groove by rolling and / or sliding; the navigation trajectory of the point-contact is a straight line and / or a curve. Compared with the prior art, the linear scanning point-coordinated cylinder navigation method, the cylinder navigation axis, and the industrial cylinder provided in the present application have the technical effects of not being easy to get stuck and having a long service life.

Description

Technical Field

[0001] The present application belongs to the technical field of pressure cylinders, and specifically relates to a linear scanning point coordinated oil cylinder navigation method, a navigation axis, a navigation component and an industrial oil cylinder. Background Art

[0002] The oil cylinder navigation referred to in this application refers to the technology of machining a navigation mechanism with a specific structure, such as a navigation groove, on the oil cylinder piston rod or a separate navigation shaft and configuring corresponding navigation parts to enable the oil cylinder piston rod to complete a specific action or a specific stroke. Figure 1 and Figure 2 , the existing technology adopts Figure 1 Middle A and Figure 2 The arc-shaped navigation groove and the steel ball navigation component shown in C cooperate with each other to complete the navigation of the piston rod. This solution has the following technical problems: the navigation steel ball and the navigation groove adopt a surface contact action mode, and the steel ball will be subjected to the force from the navigation groove in all directions. Once it is subjected to external force (for example, due to abnormalities in the navigation groove, abnormalities in the cylinder body, or impurities entering the hydraulic oil, etc.), it is difficult for the navigation component to adjust its own position to restore the force balance state, which manifests as a stuck phenomenon in the cylinder. Summary of the invention

[0003] In view of this, the present application provides a linear scanning point coordinated cylinder navigation method, a navigation axis, a navigation component and an industrial cylinder to solve the technical problems existing in the prior art.

[0004] The linear scanning point coordination cylinder navigation method provided by this application to solve the technical problem is:

[0005] A linear scanning point-coordinated cylinder navigation method, characterized in that it includes a point-coordinated step and a linear scanning step; in the point-coordinated step, point contact is formed between the navigation component and the navigation groove; in the linear scanning step, the point contact between the navigation component and the navigation groove is maintained, and the navigation component traverses the navigation groove in a rolling manner and / or a sliding manner; the navigation trajectory of the point contact is a straight line and / or a curve.

[0006] As a preferred method of linear scanning point-to-point coordination with oil cylinder navigation, the navigation component is a sphere, the point contact is two point contact points, and the distance between the two point contact points is smaller than the spherical diameter of the navigation component.

[0007] As a preferred method of linear scanning point coordination with oil cylinder navigation, the navigation groove includes straight line segments and / or curve segments.

[0008] The linear scanning point matching cylinder navigation axis provided by this application to solve the technical problem is:

[0009] A linear scanning point-coordinated cylinder navigation axis comprises a navigation axis body, characterized in that a navigation groove is provided on the navigation axis body, the navigation groove can form point contact with a navigation member, and a navigation track formed after the navigation member traverses the navigation groove is a straight line and / or a curve.

[0010] As a preferred embodiment of the linear scanning point-to-point coordination with the oil cylinder navigation axis, the navigation component is a sphere, the point contact is two point contact points, and the distance between the two point contact points is smaller than the spherical diameter of the navigation component.

[0011] As a preferred embodiment of the linear scanning point matching the oil cylinder navigation axis, the navigation groove includes a straight line segment and / or a curve segment.

[0012] The linear scanning point coordination cylinder navigation component provided by this application to solve the technical problem is:

[0013] A linear scanning point matching oil cylinder navigation assembly, comprising a navigation axis and a navigation component, characterized in that:

[0014] A navigation groove is arranged on the axis body of the navigation shaft, and the navigation groove can form a point contact with the navigation member, and the navigation track formed after the navigation member traverses the navigation groove is a straight line and / or a curve.

[0015] As a preferred embodiment of the linear scanning point-to-point coordination cylinder navigation component, the navigation component is a sphere, the point contact is two point contact points, and the distance between the two point contact points is smaller than the spherical diameter of the navigation component.

[0016] As a preferred embodiment of the linear scanning point coordination cylinder navigation assembly, the navigation groove includes a straight line segment and / or a curve segment.

[0017] The linear scanning point matching industrial cylinder provided by this application to solve the technical problem is:

[0018] A linear scanning point matching industrial oil cylinder, characterized in that: it includes a cylinder body, a piston assembly and a first navigation component; the piston assembly includes a navigation axis, and the navigation axis and the first navigation component are both assembled in the cylinder body; a first navigation groove is provided on the navigation axis, and the first navigation component can form a point contact with the first navigation groove, and the navigation trajectory formed by the first navigation component after traversing the first navigation groove is a straight line and / or a curve.

[0019] As a preferred embodiment of the linear scanning point coordination with the industrial cylinder, a second navigation groove is provided on the navigation axis, and the linear scanning point coordination with the industrial cylinder includes a second navigation component; the second navigation component can form point contact with the second navigation groove, and the navigation trajectory formed by the second navigation component after traversing the second navigation groove is a straight line and / or a curve.

[0020] As a preferred embodiment of the linear scanning point matching industrial oil cylinder, the linear scanning point matching industrial oil cylinder also includes a base and a rotation limiter; a piston cavity, a spindle assembly hole, an upper oil circuit, a lower oil circuit and a rotation limiter hole are arranged on the cylinder body; the piston assembly also includes a navigation piston and a limit valve; the navigation axis is provided with a first navigation groove, a synchronization ring, a second navigation groove and a stopper from top to bottom; the navigation piston is provided with a spindle accommodating hole, a rotation limiter groove and a first navigation hole; the limit valve is provided with a spindle accommodating position and a second navigation hole; the base is assembled in the piston cavity, and is used The limit valve is fixedly mounted on the base and is sealed with the piston cavity, one end of the navigation shaft is arranged in the main shaft accommodating position, and the other end of the navigation shaft extends out of the main shaft assembly hole and is sealed with the main shaft assembly hole; the navigation piston is sealably assembled in the piston cavity and sleeved on the navigation shaft; the rotation limit member is assembled in the rotation limit hole and is slidably connected with the rotation limit groove; the second navigation member is assembled in the second navigation hole and is tightly connected with the navigation shaft; the first navigation member is assembled in the first navigation hole and is slidably connected with the first navigation groove.

[0021] As a preferred embodiment of the linear scanning point matching industrial cylinder, the rotation limiter, the second navigation member and the first navigation member are all steel balls, and the rotation limiter, the second navigation member and the first navigation member can form double-point contact with the rotation limiter groove, the second navigation groove and the first navigation groove respectively, and the distance between the double-point contacts is smaller than the spherical diameter of the rotation limiter, the second navigation member and the first navigation member; the first navigation groove is an arc groove, and the second navigation groove and the rotation limiter groove are both straight grooves.

[0022] Beneficial technical effects:

[0023] The linear scanning point-coordinated cylinder navigation method, cylinder navigation axis, and industrial cylinder provided by the present application, due to the use of point contact and linear scanning technology, the navigation part can easily achieve its own balance quickly through rotation, sliding or tilting movement when subjected to various angles of squeezing force in the navigation groove, thereby effectively avoiding the cylinder from getting stuck due to unbalanced force. In specific applications, the service life of similar products that do not adopt the linear scanning point-coordinated technical solution is generally not more than 3 years, while the service life of products that adopt the linear scanning point-coordinated technical solution is not less than 7 years. Therefore, compared with the prior art, the linear scanning point-coordinated industrial cylinder provided by the present application has the technical effects of not being easy to get stuck and having a long service life.

[0024] At the same time, the linear scanning points disclosed in the embodiments of the present application, in conjunction with the industrial cylinder, can also decompose the three-dimensional spatial movement of the lever arm into plane angular movement (or parallel angular movement) and vertical lifting movement, which can not only greatly reduce the space requirements during equipment operation, but also effectively improve the safety performance of the equipment during operation. Compared with the existing technology, it also has technical advantages such as small space requirements, strong applicability and high safety factor.

[0025] The technical solution and technical effects of the present application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 :Schematic diagram of the technical principle of the linear scanning point combined with the cylinder navigation method Figure 1 ;

[0027] Figure 2 :Schematic diagram of the technical principle of the linear scanning point combined with the cylinder navigation method Figure 2 ;

[0028] Figure 3 : Linear scanning points are matched with the exploded diagram of industrial cylinder structure;

[0029] Figure 4 : Figure 3 The perspective view of the oil cylinder body structure;

[0030] Logo Description:

[0031] 10-cylinder body, 20-piston assembly, 30-base, 40-rotation limiter, 50-second navigation member, 60-first navigation member;

[0032] 110-piston chamber, 120-spindle assembly hole, 130-upper oil circuit, 140-lower oil circuit, 150-rotation limit hole;

[0033] 210-navigation shaft, 220-navigation piston, 230-limit valve;

[0034] 2110 - first navigation groove, 2120 - synchronization ring, 2130 - second navigation groove, 2140 - stopper;

[0035] 2210-spindle accommodating hole, 2220-rotation limiting groove, 2230-first navigation hole;

[0036] 2310-spindle accommodation position, 2320-second navigation hole. DETAILED DESCRIPTION

[0037] For the convenience of description, this application stipulates that the direction in which the cylinder piston shaft extends is upward, and the opposite direction is downward.

[0038] See also Figure 1 and Figure 2 , the existing technology adopts Figure 1 Middle A and Figure 2The arc-shaped navigation groove and the steel ball navigation part shown in C cooperate with each other to complete the navigation of the piston rod. In this technical solution, there is surface contact between the navigation part and the navigation groove, and the navigation trajectory is a three-dimensional curved surface. Since the navigation steel ball is subjected to all-round force in the navigation groove, it is not easy to quickly find the balance point when subjected to unexpected external force and it is easy to get stuck. The solution provided by this application is to realize the navigation of the cylinder piston rod through a linear scanning point coordination method. The specific implementation method includes two steps:

[0039] The point-to-point matching step forms a point-to-point contact between the navigation member and the navigation groove; the point-to-point contact formed in this step may be a single-point contact ( Figure 1 B and C in the figure) can also be double-point contact ( Figure 2 D), but not surface contact or line contact;

[0040] The linear scanning step maintains the point contact between the navigation element and the navigation groove, and allows the navigation element to traverse the navigation groove in a rolling and / or sliding manner; this step is also the navigation process, and the navigation element and the navigation groove generate mutual force through the pressure transmitted by the hydraulic oil to Figure 1 In the case of single-point contact shown in C, the navigation element and the navigation groove are squeezed by each other due to the hydraulic pressure on either side. The navigation element interacts with the navigation groove while scanning along the navigation groove. Macroscopically, the piston rod completes a specific action or a specific stroke according to the morphological structure of the navigation groove. After the scan is completed, the scanning trajectory is a curve and / or a straight line. Figure 2 In the case of double-point contact shown in D, after scanning is completed, the scanning trajectory is two parallel trajectory lines, and the trajectory line can be in the form of a curve and / or a straight line. In addition, the distance between the two point contact points is less than the spherical diameter of the navigation element.

[0041] In accordance with the above method, the linear scanning point provided by the present application in conjunction with the navigation axis and navigation assembly should be able to satisfy that the navigation groove can form point contact with the navigation part, and the navigation track formed after the navigation part traverses the navigation groove is a straight line and / or a curve. In the application of double-point contact and using a steel ball as a navigation part, it should also be able to satisfy that the distance between the two point contact points is less than the spherical diameter of the navigation part.

[0042] See also Figure 3 and Figure 4 , Figure 3 and Figure 4 The industrial oil cylinder realized by using the linear scanning point matching navigation method is shown, which includes a cylinder body 10, a piston assembly 20, a base 30, a rotation limiter 40, a second navigation part 50 and a first navigation part 60.

[0043] The cylinder body 10 is provided with a piston chamber 110, a spindle assembly hole 120, an upper oil circuit 130, a lower oil circuit 140 and a rotation limit hole 150. The piston chamber 110 is used to assemble the piston assembly 20, the spindle assembly hole 120 is used to assemble the navigation axis, the upper oil circuit 130 and the lower oil circuit 140 are used to provide ascending hydraulic pressure and descending hydraulic pressure respectively, and the first navigation component 60 is used for corner navigation.

[0044] The piston assembly 20 includes a navigation shaft 210, a navigation piston 220 and a limit valve 230. The navigation shaft 210 is provided with a first navigation groove 2110, a synchronization ring 2120, a second navigation groove 2130 and a stopper 2140 from top to bottom. The synchronization ring 2120 is provided between the first navigation groove 2110 and the second navigation groove 2130 and is integrally formed with the navigation shaft 210, and the stopper 2140 is located below the second navigation groove 2130 and is integrally formed with the navigation shaft 210. The navigation piston 220 is provided with a spindle accommodating hole 2210, a rotation limit groove 2220 and a first navigation hole 2230. The limit valve 230 is provided with a spindle accommodating position 2310 and a second navigation hole 2320.

[0045] The base 30 is assembled in the piston cavity 110 and is used to seal the piston cavity 110. The limit valve 230 is fixedly mounted on the base 30 and is sealedly connected to the piston cavity 110. One end of the navigation shaft 210 is set in the main shaft accommodating position 2310, and the other end of the navigation shaft 210 extends out of the main shaft assembly hole 120 and is sealedly connected to the main shaft assembly hole 120. The navigation piston 220 is sealedly assembled in the piston cavity 110 and sleeved on the navigation shaft 210.

[0046] The rotation limit member 40 is assembled in the rotation limit hole 150 and is slidably connected to the rotation limit groove 2220; the second navigation member 50 is assembled in the second navigation hole 2320 and is in close contact with the navigation axis 210; the first navigation member 60 is assembled in the first navigation hole 2230 and is slidably connected to the first navigation groove 2110.

[0047] Sealing rings are used to establish sealed connections between the navigation shaft 210 and the spindle assembly hole 120, between the limit valve 230 and the piston chamber 110, and between the navigation piston 220 and the piston chamber 110. The specifications and models of the sealing rings can be flexibly configured according to the characteristics of the sealing parts.

[0048] The rotation limiter 40, the second navigation member 50 and the first navigation member 60 are all steel balls, and are respectively packaged in the rotation limiter hole 150, the second navigation hole 2320 and the first navigation hole 2230 by screws. The first navigation groove 2110 is a three-dimensional arc groove, the second navigation groove 2130 is a linear groove, and the rotation limiter groove 2220 is a linear groove. The first navigation groove 2110, the second navigation groove 2130 and the rotation limiter groove 2220 are all three in number.

[0049] The linear scanning point disclosed in the present application can cooperate with the industrial oil cylinder to complete the following two strokes: a horizontal rotation followed by a vertical descent stroke and a vertical ascent followed by a horizontal rotation stroke. The following is an explanation.

[0050] 1. Horizontal rotation first and then vertical descent. Hydraulic oil is fed from the upper oil circuit 130 to the upper part of the navigation piston 220. The navigation piston 220 and the navigation shaft 210 generate mutual force through the cooperation of the first navigation member 60 and the first navigation groove 2110. At this time, since the navigation piston 220 cannot rotate itself under the action of the rotation limit groove 2220 and the rotation limit member 40, the navigation piston 220 can only move downward; at the same time, since the second navigation groove 2130 and the second navigation member 50 of the navigation shaft 210 have not yet reached a mating connection state, the navigation shaft 210 cannot move up and down under the tightening action of the second navigation member 50, thereby prompting the navigation shaft 210 to rotate alone. When the first navigation member 60 reaches the end of the first navigation groove 2110 (at this time the navigation shaft 210 has completed a predetermined rotation angle), the navigation piston 220 descends to the synchronization ring 2120, and the second navigation member 50 has been rotated to the point where it can form a mating connection with the second navigation groove 2130; at this time, the navigation piston 220 begins to perform a synchronous descending motion with the navigation shaft 210 until the predetermined stroke is completed, such as clamping the workpiece.

[0051] 2. First vertical rise and then horizontal rotation stroke. Remove the oil pressure of the upper oil circuit, and feed the hydraulic oil from the lower oil circuit 140 to the lower part of the navigation piston 220. The navigation piston 220 and the navigation shaft 210 first move upward at the same time. When the second navigation member 50 reaches the stopper 2140, the navigation shaft 210 stops rising under the action of the stopper 2140. At this time, the first navigation member 60 and the first navigation groove 2110 begin to generate mutual force, and the navigation shaft 210 begins to rotate in the opposite direction. The navigation piston 220 continues to rise until the predetermined stroke is completed.

[0052] In the process of completing the above-mentioned stroke, the rotation limit member 40, the second navigation member 50, and the first navigation member 60 respectively form double-point contacts with the rotation limit groove 2220, the second navigation groove 2130, and the first navigation groove 2110, and the distance between the two contact points is respectively less than the spherical diameter of the rotation limit member 40, the second navigation member 50, and the first navigation member 60. Due to the use of point contact and linear scanning technology, the navigation member can easily achieve its own balance quickly through rotation, sliding or tilting movement when subjected to various angles of squeezing force from the navigation groove, thereby effectively avoiding the cylinder jamming caused by unbalanced force. In specific applications, the service life of similar products that do not adopt the linear scanning point matching technical solution is generally not more than 3 years, and the service life of products that adopt the linear scanning point matching technical solution is not less than 7 years. Therefore, the linear scanning point matching industrial cylinder provided by the present application has technical effects such as not easy to jam and long service life compared with the prior art.

[0053] At the same time, the linear scanning points disclosed in this application, in conjunction with the industrial cylinder, can also decompose the three-dimensional spatial movement of the lever arm into plane angular movement (or parallel angular movement) and vertical lifting movement, which can not only greatly reduce the space requirements during equipment operation, but also effectively improve the safety performance of the equipment during operation. Compared with the existing technology, it also has technical advantages such as small space requirements, strong applicability and high safety factor.

[0054] The technical scheme and technical effects of the present application are described in detail above in combination with the drawings and specific embodiments of the specification. It should be noted that the specific implementation methods disclosed in the specification are only preferred embodiments of the present application, and technical personnel in the field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and fall within the scope of protection of this patent.

Claims

1. The linear scanning point is matched with the industrial cylinder, which is characterized by: It comprises a cylinder body (10), a piston assembly (20) and a first navigation component (60); the piston assembly (20) comprises a navigation axis (210), and the navigation axis (210) and the first navigation component (60) are both assembled in the cylinder body (10); The navigation axis (210) is provided with a first navigation groove (2110), the first navigation member (60) can form point contact with the first navigation groove (2110), and the navigation track formed by the first navigation member (60) after traversing the first navigation groove (2110) is a straight line and / or a curve; The navigation axis (210) is provided with a second navigation groove (2130), and the linear scanning point-coordinated industrial cylinder comprises a second navigation member (50); the second navigation member (50) is capable of forming point contact with the second navigation groove (2130), and a navigation track formed by the second navigation member (50) after traversing the second navigation groove (2130) is a straight line and / or a curve; The linear scanning point matching industrial oil cylinder also includes a base (30) and a rotation limiter (40); The cylinder body (10) is provided with a piston chamber (110), a main shaft assembly hole (120), an upper oil circuit (130), a lower oil circuit (140) and a rotation limit hole (150); The piston assembly (20) further comprises a navigation piston (220) and a limit valve (230); a synchronization ring (2120) and a stopper (2140) are further provided on the navigation shaft (210); the first navigation groove (2110), the synchronization ring (2120), the second navigation groove (2130) and the stopper (2140) are sequentially arranged on the navigation shaft (210) from top to bottom; the navigation piston (220) is provided with a main shaft accommodating hole (2210), a rotation limit groove (2220) and a first navigation hole (2230); the limit valve (230) is provided with a main shaft accommodating position (2310) and a second navigation hole (2320); The base (30) is assembled in the piston cavity (110) and is used to seal the piston cavity (110); The limit valve (230) is fixedly mounted on the base (30) and is sealedly connected to the piston chamber (110); one end of the navigation shaft (210) is arranged in the main shaft accommodating position (2310); the other end of the navigation shaft (210) extends out of the main shaft assembly hole (120) and is sealedly connected to the main shaft assembly hole (120); the navigation piston (220) is sealedly mounted in the piston chamber (110) and sleeved on the navigation shaft (210); The rotation limiting member (40) is assembled in the rotation limiting hole (150) and is slidably connected to the rotation limiting groove (2220); The second navigation component (50) is assembled in the second navigation hole (2320) and is tightly connected to the navigation axis (210); The first navigation member (60) is assembled in the first navigation hole (2230) and is slidably connected to the first navigation groove (2110).

2. The linear scanning point matching industrial cylinder according to claim 1 is characterized in that: The rotation limiter (40), the second navigation member (50) and the first navigation member (60) are all steel balls, and the rotation limiter (40), the second navigation member (50) and the first navigation member (60) can form double-point contacts with the rotation limiter groove (2220), the second navigation groove (2130) and the first navigation groove (2110) respectively, and the distance between the double-point contacts is smaller than the spherical diameters of the rotation limiter (40), the second navigation member (50) and the first navigation member (60); the first navigation groove (2110) is an arc groove, and the second navigation groove (2130) and the rotation limiter groove (2220) are all linear grooves.

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