Linear guide rail tool structure
Through the combined design of reference rails, non-reference rails, roller support frames and measuring tools, the problem of difficult to ensure the parallelism of the guide rails is solved, the high-precision installation and stable operation of the guide rails are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202422454567.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the prior art, the parallelism of the two guide rails after the installation of linear guide rails is difficult to ensure, resulting in increased vibration and noise during operation of the equipment, which will reduce the accuracy and service life of the equipment in severe cases.
The design of reference rails, non-reference rails, roller support frames, joint rods and measuring tools is adopted to achieve parallel positioning and precise measurement of the guide rails through threaded connections and magnetic meter seats, ensuring simple and stable installation.
It improves the parallelism of the guide rails, reduces vibration and noise during equipment operation, extends the service life of the equipment, and improves installation accuracy and stability.
Smart Images

Figure CN223076017U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of guide rails, in particular to a straight guide rail tooling structure. Background Art
[0002] The straight guide rail tooling is a complex and important field. High-precision mechanical equipment often uses straight guide rails to achieve high motion precision. The parallelism of the two guide rails directly affects the operation precision of the equipment after installation. If the parallelism of the two guide rails does not meet the requirements after installation, it will increase the vibration and noise during the operation of the equipment, and in severe cases, it will cause wear of the guide rails, reducing the equipment precision and service life. Therefore, it is particularly important to ensure the parallelism of the guide rails during installation.
[0003] In the prior art, an installation adjustment device for a straight guide rail disclosed in the patent No. CN219703046U includes an adjustment mechanism and a measurement mechanism. The adjustment mechanism includes a fixed end for abutting against the fixed end of the reference straight guide rail and a movable end for abutting against the straight guide rail to be adjusted. A connecting rod member for adjusting the distance between the two is provided between the fixed end and the movable end. The measurement mechanism includes a sliding end slidable relative to the reference straight guide rail and a measurement end provided on one side of the straight guide rail to be adjusted for measuring the change in the distance between the two guide rails. The sliding end and the measurement end are connected by a telescopic rod. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a straight guide rail tooling structure, which can ensure the parallelism of the straight guide rail to a great extent, is simple to install and convenient to use.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A straight guide rail tooling structure includes a reference guide rail, a non-reference guide rail and a roller support frame. The reference guide rail is provided with a slider. A cushion block is connected above the slider. Parallel positioning between the reference guide rail and the non-reference guide rail is realized through a first connecting rod and a second connecting rod. Measuring tools are provided on the side of the non-reference track and the roller support frame.
[0007] Preferably, the cushion block is fixed on the slider through a hanging foot. The hanging foot is fixed to the connecting rod support frame through the first connecting rod and the second connecting rod.
[0008] Preferably, external threads are provided at both ends of the first connecting rod. One end is threadedly connected to the fixed hanging foot, and the other end is connected to the second connecting rod. Nuts are used for fastening at both ends.
[0009] Preferably, a connecting rod support frame is connected above the roller support frame. The connecting rod support frame is of a triangular structure.
[0010] Preferably, a support roller is arranged inside the roller support frame; the support roller is mounted on a roller shaft through a bearing.
[0011] Preferably, the bearing is fixed inside the support roller through a step and a circlip on the support roller.
[0012] Preferably, the bearing is axially positioned on the roller shaft through a bearing spacer sleeve.
[0013] Preferably, the side surface of the roller shaft is fastened to the roller support frame through a roller shaft gland.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. Fixing with nuts on both sides makes the connecting rod more stable.
[0016] 2. The connecting rod support frame is of a triangular structure, making the whole more stable.
[0017] 3. Adding a magnetic base and a measuring gauge makes the operation more accurate.
[0018] 4. One side of the connecting rod of the present utility model directly leans against the connecting rod support frame, which is convenient for removal and disassembly. Description of the Drawings
[0019] Figure 1 It is a schematic diagram of the main body of the present utility model.
[0020] Figure 2 It is a cross-sectional view of the main body of the present utility model.
[0021] Figure 3 It is a diagram of the roller mechanism of the present utility model.
[0022] Figure 4 It is a cross-sectional view of the roller mechanism of the present utility model.
[0023] In the figure: 1, reference guide rail; 2, slider; 3, non-reference guide rail; 4, spacer block; 5, hanging foot; 6, first connecting rod; 7, second connecting rod; 8, connecting rod support frame; 9, roller support frame; 10, roller shaft; 11, roller shaft gland; 12, bearing spacer sleeve; 13, support roller; 14, bearing; 15, measuring tool. Detailed Description of the Invention
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0025] Next, an embodiment of a utility model will be described in detail.
[0026] In this embodiment, we have described in detail a precision tooling for linear guide rails. The design of this tooling aims to provide high-precision adjustment and measurement capabilities to ensure the best performance in the installation and use of the guide rails.
[0027] The reference guide rail (1) is usually made of high-strength steel or aluminum alloy materials, which have excellent mechanical strength and wear resistance. The surface of the reference guide rail (1) is precision machined to ensure its flatness and straightness, which is crucial for maintaining the precise movement of the slider (2).
[0028] In addition, the design of the reference guide rail (1) also includes multiple mounting holes for fixing on the workbench or other supporting structures to ensure its stability during use.
[0029] The slider (2) is a key moving part in the tooling, and its design allows it to carry loads of different sizes. The slider (2) usually contains ball or roller bearings inside, which can reduce friction while providing smooth and precise linear motion. Guide rail grooves are usually provided on both sides of the slider (2) to closely cooperate with the guide rail surface of the reference guide rail (1) to ensure the straightness and repeatability of the movement.
[0030] The shape design of the slider (2) has also been optimized according to different application scenarios. For example, some sliders (2) may have special contours to adapt to specific guide rail shapes or provide additional stability. In addition, protrusions or grooves may be designed on both sides and the bottom of the slider (2) to facilitate the installation and fixation of various accessories. The design of the threaded holes on the slider (2) follows the principle of standardization to ensure compatibility and universality. These threaded holes can be used to install fixing jigs, actuators or other components that require precise positioning. The design of the threaded holes takes into account the mechanical properties to ensure the structural integrity and stability of the slider (2) when fastening accessories. To improve the wear resistance of the slider (2) and reduce friction, the surface of the slider (2) may be specially treated, such as chrome plating, anodizing or coating with special lubricating materials. These surface treatments not only improve the performance of the slider (2) but also extend its service life.
[0031] The spacer blocks (4) are key components of the height adjustment mechanism. They are usually made of engineering plastics or lightweight metals to reduce weight and provide sufficient strength. The height dimensions of the spacer blocks (4) can be customized according to the installation height requirements of the slider (2) to ensure the precise fit between the slider (2) and the workbench or other components.
[0032] The fixed hanging feet (5) are another key component of the height adjustment mechanism. They are usually made of strong metals to bear the weight of the spacer blocks (4) and the slider (2). Multiple threaded holes are provided on the fixed hanging feet (5), and these threaded holes can be selected according to the height of the spacer blocks (4) to achieve precise adjustment of the height of the slider (2).
[0033] In actual use, the operator can rotate the nut on the fixed hanging foot (5) with a simple tool (such as a wrench or a screwdriver) to adjust the height of the cushion block (4). This design makes the height adjustment process fast and simple, without complex operations or additional equipment.
[0034] The design of the height adjustment mechanism enables the tooling to adapt to different working environments and requirements. For example, on an automated production line, it may be necessary to adjust the height of the slider (2) to adapt to workbenches or workpieces of different heights. In precision measurement and inspection equipment, the height adjustment mechanism can ensure precise contact between the slider (2) and the object to be measured.
[0035] In this embodiment, we have described in detail the design and function of the length adjustment mechanism of a precision tooling for a linear guide rail, as well as its collaborative working mode with the roller mechanism and the measuring tool mechanism.
[0036] The length adjustment mechanism consists of two connecting rods: the first connecting rod (6) and the second connecting rod (7). Both ends of the first connecting rod (6) are provided with external threads. This design allows it to be threadedly connected to the fixed hanging foot (5) and fastened with nuts to achieve connection with the height adjustment mechanism. The other end of the first connecting rod (6) is connected to the second connecting rod (7). This connection method provides length adjustability to adapt to working conditions with different length requirements.
[0037] Threaded connection is the key to the length adjustment mechanism. It not only provides the structural stability but also allows for quick assembly and disassembly when needed. The reliability of the threaded connection is crucial for the performance of the entire tooling. Therefore, factors such as the type of thread, pitch, and tightening torque are considered during design to ensure the firmness of the connection under various working conditions.
[0038] The connecting end of the second connecting rod (7) is an internal thread, and the connecting end to the roller mechanism is an external thread. This design enables the second connecting rod (7) to be tightly connected to the roller mechanism. Both ends are fastened with nuts, providing additional stability. The second connecting rod (7) is also provided with a mounting plane for installing the measuring tool mechanism, providing a stable platform to ensure the precise installation and use of the measuring tool. The second connecting rod (7) directly leans on the roller support frame (9), which is convenient for removal and disassembly.
[0039] The roller mechanism is placed on the non-reference guide rail (3) and is connected to the length adjustment mechanism, providing smooth movement of the tooling on the guide rail. The design of the roller mechanism includes multiple components, such as the connecting rod support frame (8), roller support frame (9), roller shaft (10), roller shaft gland (11), bearing spacer sleeve (12), support roller (13), and bearing (14). These components work together to ensure the stability and precision of the tooling during movement.
[0040] The measuring tool (15) mechanism is composed of a magnetic base and a gauge. The magnetic base can be adsorbed on the mounting plane of the second connecting rod (7) or the side of the roller support frame (9), providing a flexible measurement position selection. The gauge can be a dial gauge or a micrometer, which is selected according to the accuracy requirements. When in use, the probe of the gauge is adjusted to the reference side of the non-reference guide rail (3) to perform accurate measurement.
[0041] In this embodiment, the design and function of the roller mechanism are critical to the performance of the entire linear guide fixture.
[0042] The design of the roller mechanism adopts the concept of modularization and integration, which enables the various components to work together efficiently while ensuring the stability and reliability of the mechanism. Through precise engineering design, the roller mechanism can maintain minimal vibration and noise during high-speed movement, which is crucial for high-precision industrial applications.
[0043] The connecting rod support frame (8) is the base of the roller mechanism, and provides a stable support for the second connecting rod (7). The design of the support frame takes into account the load distribution and mechanical characteristics to ensure that it will not deform or be damaged when subjected to heavy loads. The connecting rod support frame (8) is usually made of high-strength materials to withstand the impact and wear that may be encountered in an industrial environment.
[0044] The roller support frame (9) is a key component that supports the roller (13). It works in conjunction with the rod support frame (8) to ensure the stable positioning of the roller shaft (10). The design of the roller support frame (9) allows the roller shaft (10) to maintain precise alignment during movement, which is essential for maintaining the linear motion accuracy of the tooling.
[0045] The roller shaft (10) is the core component of the supporting roller (13). Its design and material selection directly affect the service life and performance of the roller mechanism. The roller shaft gland (11) is used to fix the roller shaft (10) to ensure that its position on the supporting frame (9) does not shift. This fastening method is not only simple and reliable, but also easy to maintain and replace.
[0046] The bearing spacer (12) provides accurate axial positioning for the bearing (14) on the roller shaft (10), preventing the bearing from being displaced in the axial direction, thereby ensuring accurate rolling of the roller (13). The use of the bearing spacer (12) reduces friction and wear, and improves the efficiency and reliability of the roller mechanism.
[0047] The supporting roller (13) is installed on the roller shaft (10) through a high-precision bearing (14), and this fitting method ensures the smoothness and accuracy of the roller during the rolling process. The selection of the bearing (14) takes into account the load capacity, rotational speed, and lifespan to adapt to different working conditions and requirements.
[0048] The design of the roller mechanism allows for quick disassembly and assembly, which is very beneficial for maintenance and component replacement. When it is necessary to replace the roller or perform maintenance, the roller mechanism can be easily disassembled as a unit, reducing the maintenance time and cost. In addition, this design also enables the roller mechanism to be reused on different tooling or equipment, improving the flexibility and economy of the tooling.
[0049] The design and implementation of the roller mechanism provide the linear guide tooling with high-precision and high-stability moving performance. Through the carefully designed components and structure, the roller mechanism can not only withstand heavy loads and high-speed movements but also provide reliable services in various industrial environments. In addition, the modular design and easy disassembly characteristics of the roller mechanism make the maintenance and upgrade of the tooling more convenient, thereby improving the practicality and economy of the entire tooling.
[0050] The measuring tool mechanism is a key component for precision measurement in the linear guide tooling. It usually consists of a magnetic base and a measuring gauge. The design of the magnetic base allows it to be firmly adsorbed on the mounting plane of the second connecting rod (7) or the side surface of the roller support frame (9), providing flexible measurement position selection. This adsorption method is not only stable but also allows for quick adjustment of the position of the measuring tool to adapt to different measurement requirements.
[0051] The measuring gauge can be a dial indicator or a micrometer, which is selected according to the accuracy requirements. The minimum scale of a dial indicator is 0.01 mm, which is suitable for the calibration and inspection of parts with dimensional accuracy grades IT6 - IT8, while the minimum scale of a micrometer is 0.001 mm, which is suitable for the calibration and inspection of parts with dimensional accuracy grades IT5 - IT7. Which measuring gauge to choose depends on the tolerance range of the measured object. The maximum allowable error (accuracy) of the measuring tool cannot be greater than the tolerance of the measured object, otherwise the measurement will be meaningless. The accuracy of the measuring tool should be at least 1 / 10 of the process tolerance to ensure the accuracy and effectiveness of the measurement data.
[0052] When using the measuring tool mechanism, the operator can select a suitable measuring gauge according to the actual measurement requirements to ensure the accuracy of the measurement results. For example, if the tolerance of the measured object is ±0.05 mm, then a measuring gauge with an accuracy of ±0.005 mm or higher should be selected. In addition, the use of the measuring tool also needs to consider its resolution, that is, the minimum detectable change that the measuring tool can display or capture. For example, the resolution of some electronic measuring instrument tools may be higher than their accuracy.
[0053] In actual operation, the probe of the measuring instrument needs to be adjusted to press against the reference side of the non-reference guide rail (3) for accurate measurement. This design allows the operator to select a suitable measuring instrument according to the actual measurement requirements, ensuring the accuracy of the measurement results. The use of the measuring instrument mechanism enables precise measurement during the installation and adjustment of the tooling, ensuring the precise alignment and installation of the linear guide rail.
[0054] In summary, the design and implementation of the measuring instrument mechanism provide high-precision and high-stability measurement performance for the linear guide rail tooling. Through carefully designed components and structures, the measuring instrument mechanism can not only meet the requirements of precision measurement but also provide reliable services in various industrial environments. In addition, the flexibility and easy adjustment characteristics of the measuring instrument mechanism make the maintenance and upgrade of the tooling easier, thus improving the practicality and economy of the entire tooling.
[0055] The design of the entire tooling takes into account the convenience of operation and the accuracy of measurement. By using the height adjustment mechanism and the length adjustment mechanism in combination, it can adapt to different specifications of sliders (2) and guide rails (3), ensuring that the installation and use of the linear guide rail achieve the best performance. The design of the roller mechanism not only provides smooth movement but also facilitates disassembly and secondary use, improving the practicality and economy of the tooling. The addition of the measuring instrument mechanism enables precise measurement during the installation and adjustment of the tooling, ensuring the precise alignment and installation of the linear guide rail. The design and implementation of this precision tooling provide strong support for the high-precision installation of the linear guide rail.
[0056] In this embodiment, we mainly introduce a key component in a high-precision mechanical device, the linear guide rail. The motion accuracy of the device depends to a large extent on the precise installation of the guide rail. Specifically, the parallelism of the guide rail after installation is a crucial factor determining the operating accuracy of the device. If the installed guide rail fails to meet the strict requirements of parallelism, it may cause additional vibration and noise during the operation of the device. In addition, poor parallelism may also accelerate the wear of the guide rail, thereby affecting the accuracy and overall service life of the device. Therefore, it is crucial to ensure that the parallelism of the guide rail reaches the design specifications during the installation process. Correct installation can not only improve the performance of the device but also extend its service life, ensuring the stability and reliability of the processing process.
[0057] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A linear guide tooling structure, characterized in that: It includes a reference guide rail (1), a non-reference guide rail (3) and a roller support frame (9); the reference guide rail (1) is provided with a slider (2); a cushion block (4) is connected above the slider (2); parallel positioning between the reference guide rail (1) and the non-reference guide rail (3) is achieved through a first connecting rod (6) and a second connecting rod (7); a measuring tool (15) is provided on the side of the non-reference guide rail (3) and the roller support frame (9).
2. The linear guide tooling structure according to claim 1, characterized in that, The cushion block (4) is fixed on the slider (2) through a hanging foot (5); the hanging foot (5) is fixed to a connecting rod support frame (8) through the first connecting rod (6) and the second connecting rod (7).
3. The linear guide tooling structure according to claim 2, characterized in that, Both ends of the first connecting rod (6) are provided with external threads. One end is threadedly connected to the fixed hanging foot (5), and the other end is connected to the second connecting rod (7), and both ends are fastened with nuts.
4. A linear guide tooling structure according to any one of claims 1 to 3, characterized in that, The connecting rod support frame (8) is connected above the roller support frame (9); the connecting rod support frame (8) is of a triangular structure.
5. A linear guide tooling structure according to claim 1 or 2, characterized in that, A support roller (13) is arranged inside the roller support frame (9); the support roller (13) is installed on a roller shaft (10) through a bearing (14).
6. The linear guide tooling structure according to claim 5, characterized in that, The bearing (14) is fixed inside the support roller (13) through a step and a circlip on the support roller (13).
7. The jig structure of a linear guide rail according to claim 5, characterized in that, The bearing (14) is axially positioned on the roller shaft (10) through a bearing spacer sleeve (12).
8. A linear guide tooling structure according to claim 5, characterized in that, The side of the roller shaft (10) is fastened to the roller support frame (9) through a roller shaft gland (11).
Citation Information
Patent Citations
Mounting and adjusting device for linear guide rail
CN219703046U