Hollow linear optical axis

Abstract

The utility model belongs to linear light axle field, specifically is a kind of hollow linear light axle, including outer shaft body subassembly and inner shaft body subassembly, interlayer space is formed between two, outer shaft body outer circumferential surface of outer shaft body subassembly is equipped with recess, recess is opened with the through hole that interlayer space is communicated, top and bottom are provided with clamping slot and threaded connection part;The outer circumferential surface of inner shaft body subassembly is fixed with support rib, inner wall is equipped with radiating fin, inside is hollow passage.Recess is clamped dust screen by clamping slot, threaded connection part and the threaded cooperation of connecting sleeve with flange plate.Dustproof net is realized dustproof heat dissipation with the through hole and radiating fin form convection heat dissipation channel, cooperation, hollow passage can be worn and set pipeline, threaded connection part and flange plate are convenient to install, improve heat dissipation efficiency, structural stability and equipment integration, it is applicable to precision motion scene such as automation machinery.

Description

Technical Field

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

[0002] Hollow linear optical shafts are precision components used in the field of mechanical transmission. Their core feature is that they form a hollow structure through the layered design of inner and outer shafts, which combines multiple functions such as linear motion guidance, heat dissipation, and structural support.

[0003] The linear optical axis in the existing technology has the following problems in practical applications: 1. Traditional optical axes are mostly solid structures or simple hollow designs, which have poor heat dissipation performance. When running at high speed, the internal heat accumulation can easily cause the axis to deform, affecting the motion accuracy.

[0004] 2. The structural support strength is insufficient, and it is prone to bending when subjected to radial loads or alternating stress, making it difficult to meet the stability requirements of high-precision equipment. 3. The dustproof design is not perfect. External dust, debris and other impurities can easily enter the optical axis, block the heat dissipation channel or aggravate component wear and shorten the service life. 4. The function is limited and cannot integrate pipelines (such as cables and gas pipes), resulting in complex internal wiring and increased risk of interference. Therefore, a hollow linear optical axis is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as insufficient structural support strength, poor heat dissipation, inadequate dustproof design, and limited functionality, this invention proposes a hollow linear optical axis.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a hollow linear optical axis, including an outer shaft assembly and an inner shaft assembly, with a sandwich space formed between the outer shaft assembly and the inner shaft assembly. The outer shaft assembly includes an outer shaft, and multiple grooves are equally spaced on the outer circumferential surface of the outer shaft. Multiple through holes are formed in each groove, penetrating the wall of the outer shaft and communicating with the sandwich space. A slot is formed at the top and bottom of each groove. The top and bottom of the outer shaft both protrude outward to form a threaded connection part.

[0007] The inner shaft assembly includes an inner shaft, and a support rib is fixedly connected to the outer peripheral surface of the inner shaft.

[0008] Each of the grooves is fitted with a dustproof mesh via two corresponding slots, and a connecting sleeve is threaded into the threaded connection portion.

[0009] Preferably, the end of the support rib is fixedly connected to the inner wall of the outer shaft.

[0010] Preferably, a flange is fixedly connected to the end of the connecting sleeve.

[0011] Preferably, the interior of the inner shaft body is a hollow channel.

[0012] Preferably, the inner wall of the connecting sleeve is provided with threads, and the outer surface of the threaded connection part is also provided with threads, which are matched with the threads of the connecting sleeve.

[0013] Preferably, the support ribs are distributed in a "human" shape in the sandwich space.

[0014] Preferably, heat dissipation fins are circumferentially distributed at equal angles on the inner wall of the inner shaft body.

[0015] The beneficial effects of the present utility model are as follows: 1. The present utility model forms a heat dissipation channel through the groove and the through hole. External air enters the sandwich space through the through hole and takes away heat when flowing through the heat dissipation fins of the inner shaft body, avoiding the structural design of shaft body deformation caused by overheating, realizing the air convection function between the sandwich space and the outside world, solving the problem of heat accumulation during the operation of the optical axis, and improving the heat dissipation efficiency of the equipment during long-term operation; 2. The present utility model forms a truss structure in the sandwich space through the "human"-shaped support ribs, supporting the inner and outer shaft bodies simultaneously, resisting axial and radial forces, and ensuring the straightness of the optical axis during precise movement. This structural design realizes the function of enhancing the overall rigidity of the optical axis, solves the problem of easy bending and deformation of traditional optical axes, and improves the structural stability efficiency when bearing radial loads.

[0016] 3. The dust-proof net of the present utility model is fixed through the card slot and covers the outside of the through hole, preventing dust and debris from entering the sandwich space and reducing the maintenance frequency. This structural design realizes the function of blocking external impurities from entering, solves the problems of heat dissipation channel blockage and component wear, and improves the maintenance cycle and service life efficiency of the optical axis.

[0017] 4. The hollow channel of the present utility model can penetrate cables, air pipes, etc., reducing external wiring interference; the heat dissipation fins increase the heat dissipation area, and the through holes cooperate to accelerate heat conduction. This structural design realizes the dual functions of integrated pipelines and enhanced heat dissipation, solves the problem of single function of traditional optical axes, and improves the equipment integration degree and heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 This is a schematic diagram of the hollow linear optical axis structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the hollow straight optical axis of this utility model; Figure 3 For the present utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the structure of the outer shaft of this utility model; Figure 5 This is a schematic diagram of the top structure of the outer shaft assembly of this utility model; Figure 6 This is a schematic diagram of the inner shaft assembly of this utility model.

[0020] In the figure: 1. Outer shaft assembly; 101. Outer shaft; 102. Groove; 103. Through hole; 104. Slot; 105. Threaded connection; 2. Inner shaft assembly; 201. Inner shaft; 202. Support rib; 203. Heat dissipation fins; 3. Dustproof mesh; 4. Connecting sleeve; 5. Flange. Detailed Implementation

[0021] 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.

[0022] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. This application discloses a hollow linear optical axis. (Refer to...) Figure 6,A hollow linear optical axis, comprising an outer shaft body component 1 and an inner shaft body component 2. A sandwich space is formed between the outer shaft body component 1 and the inner shaft body component 2. The outer shaft body component 1 includes an outer shaft body 101. A plurality of grooves 102 are equidistantly arranged on the outer peripheral surface of the outer shaft body 101. A plurality of through holes 103 penetrating the wall surface of the outer shaft body and communicating with the sandwich space are arranged in each groove 102. Clamping grooves 104 are respectively arranged at the top and bottom of each groove 102. Threaded connection parts 105 protrude outward at the top and bottom of the outer shaft body 101. Each groove 102 is clamped with a dust-proof net 3 through two corresponding clamping grooves 104. The dust-proof net 3 is clamped and fixed through the clamping grooves 104 at the top and bottom of the groove 102 of the outer shaft body 101, covering the outside of the through hole 103. The dust-proof net 3 blocks impurities such as dust and debris from entering the sandwich space through the through hole 103, prevents the heat dissipation channel from being blocked, and prolongs the service life of the optical axis. The dust-proof net 3 can be quickly disassembled and cleaned through the clamping groove 104. During maintenance, there is no need to disassemble the entire optical axis structure. The modular design reduces the maintenance cost and ensures the long-term effectiveness of the heat dissipation system.

[0023] A connecting sleeve 4 is in threaded fit with the threaded connection part 105. A flange 5 is fixedly connected to the end of the connecting sleeve 4. The inner wall of the connecting sleeve 4 is provided with threads, and the outer surface of the threaded connection part 105 is also provided with threads, which are matched with the threads of the connecting sleeve 4.

[0024] The external threads of the threaded connection parts 105 at the top and bottom of the outer shaft body 101 are screwed with the internal threads of the inner wall of the connecting sleeve 4, and axial fixation is achieved through threaded fit. The flange 5 at the end of the connecting sleeve 4 is connected to the mechanical base or other components through bolts, ensuring the stability of the overall installation of the optical axis. The matching design of the threaded connection part 105 and the connecting sleeve 4 enables the optical axis to be quickly disassembled and assembled, and the rigid connection of the flange 5 avoids loosening during operation.

[0025] The inner shaft body component 2 includes an inner shaft body 201. Support ribs 202 are fixedly connected to the outer peripheral surface of the inner shaft body 201. The ends of the support ribs 202 are fixedly connected to the inner wall of the outer shaft body 101. The inside of the inner shaft body 201 is a hollow channel. Cables, air pipes or sensor wire harnesses can pass through the hollow channel of the inner shaft body 201, realizing the integration of "moving components and control systems", reducing external cable interference. The hollow design improves the functionality of the optical axis and is suitable for scenarios where pipelines need to be integrated in automated equipment.

[0026] The support ribs 202 are distributed in a "person" shape in the sandwich space. Heat dissipation fins 203 are circumferentially distributed at equal angles on the inner wall of the inner shaft body 201.

[0027] During linear motion, internal components such as cables or moving parts passing through the hollow channel of the inner shaft body 201 may generate heat. The heat dissipation fins 203 on the inner wall of the inner shaft body 201 absorb the heat. Outside air enters the interlayer space through the through hole 103 in the groove 102 of the outer shaft body 101. As it flows through the heat dissipation fins 203, it carries away the heat. The hot air is discharged from the through hole at the other end, forming natural convection. The heat dissipation fins 203 increase the heat dissipation area. The cooperation between the through hole 103 and the interlayer space forms a "heat dissipation channel", which keeps the temperature of the optical axis stable during high-speed operation and avoids the decrease in accuracy due to overheating.

[0028] The supporting ribs 202 are distributed in a "human" shape, with their ends fixed to the inner wall of the outer shaft 101, suspending the inner shaft 201 in the center of the interlayer space. The "human" shaped support structure provides support in both the axial and radial directions, preventing the inner shaft 201 from deforming due to force, while reducing direct contact between the inner and outer shafts and avoiding heat conduction concentration.

[0029] The support rib 202 rigidly connects the outer shaft 101 and the inner shaft 201 to form a "truss" structure, which resists radial loads such as lateral forces and axial tensions during slider movement. The groove 102 design of the outer shaft 101 reduces weight while enhancing circumferential strength through structural optimization, preventing the optical axis from bending. The synergistic effect of the support rib 202 and the outer shaft 101 ensures that the optical axis maintains straightness when subjected to alternating loads, ensuring the smooth operation of precision moving parts such as linear bearings.

[0030] Working Principle: This invention achieves stable operation of the optical axis in linear motion through a layered design of the outer shaft assembly 1 and the inner shaft assembly 2, integrating heat dissipation, dust prevention, and structural support functions. The core principle is as follows: Heat dissipation principle: The convection channel is formed by the through hole 103 of the outer shaft 101 and the heat dissipation fins 203 of the inner shaft 201, and the interlayer space serves as the heat dissipation path to quickly dissipate the heat during operation.

[0031] Structural support principle: The "human"-shaped support ribs 202 connect the inner and outer shafts, enhancing overall rigidity while reducing weight.

[0032] Dustproof and connection principle: The dustproof net 3 blocks external impurities from entering the heat dissipation channel, the threaded connection part 105 cooperates with the connecting sleeve 4, and the flange 5 enables stable installation with other equipment.

[0033] 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 hollow linear optical axis, comprising an outer shaft body component (1) and an inner shaft body component (2). A sandwich space is formed between the outer shaft body component (1) and the inner shaft body component (2). It is characterized in that: The outer shaft body component (1) includes an outer shaft body (101). A plurality of grooves (102) are equidistantly formed on the outer peripheral surface of the outer shaft body (101). A plurality of through holes (103) penetrating the wall surface of the outer shaft body and communicating with the sandwich space are formed in each groove (102). Clamping grooves (104) are respectively formed at the top and bottom of each groove (102). Threaded connection portions (105) are formed by outward protrusions at the top and bottom of the outer shaft body (101); The inner shaft body component (2) includes an inner shaft body (201). Support ribs (202) are fixedly connected to the outer peripheral surface of the inner shaft body (201); Each groove (102) is clamped with a dust-proof net (3) through corresponding two clamping grooves (104). A connecting sleeve (4) is in threaded fit at the threaded connection portion (105).

2. A hollow linear optical axis according to claim 1, characterized in that: The end of the support rib (202) is fixedly connected to the inner wall of the outer shaft body (101).

3. A hollow linear optical axis according to claim 1, characterized in that: A flange (5) is fixedly connected to the end of the connecting sleeve (4).

4. A hollow linear optical axis according to claim 1, characterized in that: The inside of the inner shaft body (201) is a hollow channel.

5. A hollow linear optical axis according to claim 1, characterized in that: Threads are provided on the inner wall of the connecting sleeve (4), and threads are also provided on the outer surface of the threaded connection portion (105), and are matched with the threads of the connecting sleeve (4).

6. A hollow linear optical axis according to claim 1, characterized in that: The support ribs (202) are distributed in a "person" shape in the sandwich space.

7. A hollow linear optical axis according to claim 1, characterized in that: Heat dissipation fins (203) are circumferentially distributed at equal angles on the inner wall of the inner shaft body (201).

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