High-strength linear optical axis

Abstract

The utility model belongs to the field of linear optical shafts, and particularly relates to a high-strength linear optical shaft which comprises an inner shaft, an outer shaft and an end cover, first threaded holes are formed in one end of the inner shaft, limiting strips are fixed to the circumferential face of the inner shaft at equal intervals, the outer shaft is provided with a round cavity, and round openings are formed in the two ends of the outer shaft. Limiting grooves are fixed to a circular cavity of the outer shaft at equal intervals, an assembling cavity is formed in one side of the end cover, a second threaded hole is formed in the other side of the end cover, when the outer shaft is arranged on the inner shaft in a sleeving mode, the end cover is arranged on the inner shaft in a sleeving mode, the end of the outer shaft abuts against the assembling cavity, and fastening bolts are arranged on the containing grooves in a threaded fit mode. And the fastening bolt extends into the first threaded hole. By means of the inner shaft, the first threaded hole, the outer shaft, the end cover and the fastening bolt, when the device is used, only the outer shaft needs to be detached for independent replacement after the outer wall of the optical shaft is abraded, the inner shaft can be reused, material consumption is reduced, and the material cost in the equipment maintenance process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of linear optical axes, specifically a high-intensity linear optical axis. Background Technology

[0002] As a key basic component guiding linear motion in fields such as mechanical transmission and automation equipment, linear optical shafts are widely used in machine tools, robots, conveying devices and other equipment. They rely on high-precision cylindrical surfaces and matching sliding bearings to achieve low-friction and high-stability linear guiding functions.

[0003] In existing technologies, linear optical axes mostly adopt a one-piece structure design, that is, the entire optical axis is processed from a single material. The outer wall of the optical axis is in direct contact with the external environment and supporting components, and is subjected to friction, bumps, and impacts over a long period of time. This makes it prone to problems such as wear on the outer wall and a decrease in surface precision. Because it is a one-piece structure, when the wear on the outer wall of the optical axis is severe and affects the operating accuracy and stability of the equipment, the entire linear optical axis must be replaced, resulting in a large amount of material loss and increased operating costs. Therefore, a high-strength linear optical axis is proposed to address the above problems. Utility Model Content

[0004] To address the problem in existing technologies where severe wear on the outer wall of the optical axis affects the operational accuracy and stability of the equipment, requiring the replacement of the entire linear optical axis, resulting in significant material waste and increased operating costs, this invention proposes a high-strength linear optical axis.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-strength linear optical axis, including an inner shaft, an outer shaft and an end cap. One end of the inner shaft is provided with a first threaded hole. Limiting strips are fixed at equal intervals on the circumferential surface of the inner shaft. The outer shaft has a circular cavity. Both ends of the outer shaft have circular openings. Limiting grooves are fixed at equal intervals on the circular cavity of the outer shaft.

[0006] The end cap has an assembly cavity on one side and a second threaded hole on the other side. When the outer shaft is sleeved on the inner shaft, the end cap is sleeved on the inner shaft. The end of the outer shaft abuts against the assembly cavity. A fastening bolt is threaded into the receiving groove and extends into the first threaded hole.

[0007] Preferably, the cross-sectional projection of the inner shaft is "T" shaped, and an oil injection hole is provided on the inner shaft.

[0008] Preferably, the outer wall of the outer shaft is provided with an oil outlet hole, which is connected to the circular cavity of the outer shaft. When the outer shaft is fitted onto the inner shaft, the oil outlet hole and the oil injection hole are concentric.

[0009] Preferably, when the outer shaft is fitted onto the inner shaft, the limiting groove engages with the limiting strip.

[0010] Preferably, the inner diameter of the outer shaft is adapted to the minimum diameter of the inner shaft, and the outer diameter of the outer shaft is adapted to the maximum diameter of the inner shaft.

[0011] Preferably, the inner wall of the assembly cavity is provided with an arc-shaped groove adapted to the limiting strip, and when the end cap is sleeved on the inner shaft, the arc-shaped groove cooperates with the limiting strip.

[0012] Preferably, a storage groove is provided on one side of the end cap, and a second threaded hole communicating with the assembly cavity is provided on the storage groove.

[0013] Preferably, the outer wall of the end cap is provided with anti-slip texture, and the diameter of the assembly cavity is adapted to the minimum diameter of the inner shaft.

[0014] The advantages of this utility model are:

[0015] 1. Through the structural design of the inner shaft, the first threaded hole, the outer shaft, the end cover and the fastening bolt, when using this device, after the outer wall of the optical shaft is worn, only the outer shaft needs to be disassembled and replaced separately, and the inner shaft can be reused, which greatly reduces material consumption and lowers the material cost in the equipment maintenance process;

[0016] 2. Through the structural design of the limiting strip and the limiting groove, this utility model can guide the outer shaft during the assembly process, thereby ensuring that the oil outlet hole can accurately match the oil injection hole, thus ensuring the normal operation of subsequent lubrication. In addition, the storage groove allows the fastening bolts after assembly to be located in the storage groove, avoiding the situation where the fastening bolts protrude and are bent due to accidental bumps, which would affect their use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the linear optical axis of this utility model;

[0019] Figure 2 This is a schematic diagram of the inner shaft structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the outer shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the back structure of the end cap of this utility model;

[0022] Figure 5 This is a front structural diagram of the end cap of this utility model.

[0023] In the diagram: 1. Inner shaft; 10. Oil injection hole; 11. First threaded hole; 2. Limiting strip; 3. Outer shaft; 30. Oil outlet hole; 31. Limiting groove; 4. End cap; 40. Assembly cavity; 41. Arc groove; 42. Storage groove; 43. Second threaded hole; 5. Fastening bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a high-intensity linear optical axis. (Refer to...) Figures 1-5 A high-strength linear optical shaft includes an inner shaft 1, an outer shaft 3, and an end cap 4. One end of the inner shaft 1 is provided with a first threaded hole 11. The inner shaft 1 is made of high-strength alloy steel, which gives it high hardness and toughness, and can withstand large loads and external impacts. The first threaded hole 11 at one end of the inner shaft 1 is used to cooperate with the fastening bolts 5 on the end cap 4 to achieve a stable connection between the inner shaft 1 and the end cap 4. Limiting strips 2 are fixed at equal intervals on the circumference of the inner shaft 1. The limiting strips 2 are made of the same high-strength material as the inner shaft.

[0027] The outer shaft 3 has a circular cavity, and both ends of the outer shaft 3 have circular openings. Limiting grooves 31 are fixed at equal intervals on the circular cavity of the outer shaft 3.

[0028] The end cap 4 has an assembly cavity 40 on one side and a second threaded hole 43 on the other side. When the outer shaft 3 is sleeved on the inner shaft 1, the end cap 4 is sleeved on the inner shaft 1. The end of the outer shaft 3 abuts against the assembly cavity 40. The receiving groove 42 is threaded with a fastening bolt 5, which extends into the first threaded hole 11.

[0029] Reference Figure 2 The cross-sectional projection of the inner shaft 1 is "T" shaped, and an oil injection hole 10 is provided on the inner shaft 1.

[0030] Reference Figure 1 , Figure 2 and Figure 3The outer wall of the outer shaft 3 is provided with an oil outlet hole 30, which is connected to the cavity of the outer shaft 3. When the outer shaft 3 is fitted onto the inner shaft 1, the oil outlet hole 30 and the oil injection hole 10 are concentric.

[0031] Reference Figure 1 , Figure 2 and Figure 3 When the outer shaft 3 is fitted onto the inner shaft 1, the limiting groove 31 and the limiting strip 2 cooperate. When the end cover is fitted onto the inner shaft 1, the arc groove 41 and the limiting strip 2 cooperate, further enhancing the connection stability between the end cover 4 and the inner shaft 1 and preventing the end cover 4 from rotating. The second threaded hole 43 corresponds to the first threaded hole 11 on the inner shaft 1, and the end cover and the inner shaft are firmly connected by the fastening bolt 5.

[0032] The outer shaft 3 is made of wear-resistant alloy material with a tungsten carbide coating on the surface, which further improves its wear resistance and corrosion resistance. The outer shaft 3 has a circular cavity with circular openings at both ends. Limiting grooves 31 are fixed at equal intervals on the inner wall of the cavity. The shape and size of the limiting grooves 31 are completely matched with the limiting strips 2 on the inner shaft 1. When the outer shaft 3 is sleeved on the inner shaft 1, the limiting strips 2 are embedded in the limiting grooves 31, which not only prevents the outer shaft from rotating circumferentially relative to the inner shaft, but also restricts the axial movement of the outer shaft to a certain extent, ensuring the stability of the optical shaft during operation.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The inner diameter of the outer shaft 3 is adapted to the minimum diameter of the inner shaft 1, and the outer diameter of the outer shaft 3 is adapted to the maximum diameter of the inner shaft 1.

[0034] Reference Figure 1 , Figure 4 and Figure 5 The inner wall of the assembly cavity 40 is provided with an arc-shaped groove 41 adapted to the limiting strip 2. When the end cover 4 is sleeved on the inner shaft 1, the arc-shaped groove 41 cooperates with the limiting strip 2.

[0035] Reference Figure 1 , Figure 4 and Figure 5 A storage groove 42 is provided on one side of the end cap 4, and a second threaded hole 43 is provided on the storage groove 42 to connect to the assembly cavity 40.

[0036] Reference Figure 1 , Figure 4 and Figure 5The outer wall of the end cap 4 is provided with anti-slip texture. The diameter of the assembly cavity 40 is adapted to the minimum diameter of the inner shaft 1. The anti-slip texture design makes it easier for operators to grip the end cap when installing and removing it, improving the convenience and safety of operation. The diameter of the assembly cavity 40 is adapted to the minimum diameter of the inner shaft 1, ensuring that the end cap 4 can be tightly fitted onto the inner shaft 1, providing a good sealing and protection function.

[0037] Working principle: When assembling a high-strength linear optical axis, the outer shaft 3 is first fitted onto the inner shaft 1. Since the inner diameter of the outer shaft 3 matches the minimum diameter of the inner shaft 1, and the limiting strip 2 on the inner shaft 1 cooperates with the limiting groove 31 of the outer shaft 3, the outer shaft 3 can be accurately positioned on the inner shaft 1, while preventing the outer shaft 3 from rotating or axially moving relative to the inner shaft 1. Next, the end cap 4 is fitted onto the end of the inner shaft 1. At this time, the arc groove 41 on the inner wall of the assembly cavity 40 of the end cap 4 cooperates with the limiting strip 2 to further position the end cap 4. Then, the fastening bolt 5 is passed through the second threaded hole 43 on the end cap 4 and screwed into the first threaded hole 11 on the inner shaft 1. By tightening the fastening bolt 5, the end cap is firmly fixed on the inner shaft 1, and the end of the outer shaft 3 is also pressed, so that the outer shaft 3, the inner shaft 1 and the end cap 4 are tightly connected into a whole.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-intensity linear optical axis, characterized in that, include: An inner shaft (1) is provided with a first threaded hole (11) at one end of the inner shaft (1), and a limit strip (2) is fixed at equal intervals on the circumferential surface of the inner shaft (1). The outer shaft (3) has a circular cavity and circular openings at both ends. Limiting grooves (31) are fixed at equal intervals on the circular cavity of the outer shaft (3). An end cap (4) is provided with an assembly cavity (40) on one side and a storage groove (42) on one side. A second threaded hole (43) communicating with the assembly cavity (40) is provided on the storage groove (42). A second threaded hole (43) is provided on the other side of the end cap (4). When the outer shaft (3) is sleeved on the inner shaft (1), the end cap (4) is sleeved on the inner shaft (1). The end of the outer shaft (3) abuts against the assembly cavity (40). A fastening bolt (5) is threaded on the storage groove (42). The fastening bolt (5) extends into the first threaded hole (11).

2. The high-intensity linear optical axis according to claim 1, characterized in that: The cross-sectional projection of the inner shaft (1) is "T" shaped, and an oil injection hole (10) is provided on the inner shaft (1).

3. A high-intensity linear optical axis according to claim 2, characterized in that: The outer wall of the outer shaft (3) is provided with an oil outlet hole (30), which is connected to the circular cavity of the outer shaft (3). When the outer shaft (3) is fitted on the inner shaft (1), the oil outlet hole (30) and the oil injection hole (10) are concentric.

4. A high-intensity linear optical axis according to claim 3, characterized in that: When the outer shaft (3) is fitted onto the inner shaft (1), the limiting groove (31) is fitted with the limiting strip (2).

5. A high-intensity linear optical axis according to claim 4, characterized in that: The inner diameter of the outer shaft (3) is adapted to the minimum diameter of the inner shaft (1), and the outer diameter of the outer shaft (3) is adapted to the maximum diameter of the inner shaft (1).

6. A high-intensity linear optical axis according to claim 1, characterized in that: The inner wall of the assembly cavity (40) is provided with an arc-shaped groove (41) adapted to the limiting strip (2). When the end cap (4) is sleeved on the inner shaft (1), the arc-shaped groove (41) cooperates with the limiting strip (2).

7. A high-intensity linear optical axis according to claim 6, characterized in that: The outer wall of the end cap (4) is provided with anti-slip texture, and the diameter of the assembly cavity (40) is adapted to the minimum diameter of the inner shaft (1).

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