Linear guide rail pair with locking function

Abstract

The utility model discloses a linear guide rail pair with a locking function, which belongs to the field of linear guide rails and comprises a guide rail and a slider slidably mounted on the guide rail, a mounting cavity with an opening at the lower end is arranged in the middle of the slider, and a locking component is arranged in the mounting cavity. The locking assembly comprises two locking heads symmetrically arranged on the two sides of the linear guide rail and connecting plates integrally formed with the locking heads, the locking heads are located in guide grooves of the linear guide rail, the upper ends of the connecting plates on the two sides are connected with the driving assembly, and one end of the driving assembly is connected with a locking handle. The locking assemblies are arranged on the two sides of the sliding block, the driving assembly is used for driving the locking assemblies on the two sides to lock or unlock the linear guide rail, and the locking effect and stability are improved.

Description

Technical Field

[0001] The utility model belongs to the field of linear guide rails, and particularly relates to a linear guide rail pair with a locking function. Background Art

[0002] With the continuous improvement of industrial automation level, linear guides play a vital role in automation equipment. The performance of linear guides is directly related to the operating efficiency and stability of the entire system. Linear guides are mainly composed of linear guides and sliders. They are widely used in many important fields such as CNC machine tools, robots, and automation equipment because of their significant advantages such as strong load-bearing capacity, low friction loss, and high motion sensitivity.

[0003] In the actual application of linear guides, the stability of the slider is crucial to ensure the efficient and accurate operation of the system. Therefore, it is often necessary to use a locking device to fix the slider to ensure its stability in a specific position. However, there are obvious problems with the existing linear guide locking methods.

[0004] Commonly used locking methods, such as a ball linear guide pair with a locking function disclosed in publication number CN220488102U, usually have a screw installed on the side of the slider through a thread, and a locking handle is connected to the outside of the screw, and a locking strip is connected to the inside of the screw. When the slider needs to be locked, the operator turns the locking handle to drive the screw to rotate, and then the locking strip is pressed against the linear guide to achieve the positioning and locking of the slider.

[0005] However, this traditional locking method has the following significant limitations:

[0006] 1. Limited locking effect: Since the locking operation is only performed on one side of the guide rail, the locking effect is general and cannot meet the application requirements of high precision and high stability. Especially in heavy load or high vibration environment, the slider is prone to position deviation or shaking due to insufficient locking, which seriously affects the operating accuracy and stability of the system.

[0007] 2. Unilateral force is easy to deform: Since the locking force only acts on one side of the slider and the guide rail, long-term use can easily cause unilateral deformation of the slider or the guide rail. This deformation will not only affect the accuracy and performance of the linear guide pair, but may also shorten its service life and increase maintenance costs. Utility Model Content

[0008] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a linear guide pair with a locking function, which realizes the simultaneous locking of the slider on both sides of the linear guide by improving the structure and principle of the locking device, thereby significantly improving the locking effect and stability.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A linear guide pair with a locking function comprises a guide rail and a slider slidably mounted on the guide rail, a mounting cavity with an opening at the lower end being provided in the middle of the slider, a locking assembly being provided in the mounting cavity, the locking assembly comprising two locking heads symmetrically arranged on both sides of the linear guide rail and a connecting plate integrally formed with the locking head, the locking head being located in a guide groove of the linear guide rail, the upper ends of the connecting plates on both sides being connected to a driving assembly, and one end of the driving assembly being connected to a locking handle.

[0011] Furthermore, the outer surface of the locking head is provided with anti-slip patterns, and the anti-slip patterns are wavy.

[0012] Furthermore, the drive assembly includes a double-headed screw, both ends of which are rotatably connected to the slider, the double-headed screw is threadedly connected to the connecting plates on both sides, and the threads at both ends of the double-headed screw have opposite rotation directions, and one end of the double-headed screw is fixedly connected to the locking handle.

[0013] Furthermore, a blind hole is provided on one side of the locking head, a spring is installed in the blind hole, screw plugs are symmetrically threaded on both sides of the slider, the screw plugs abut against one end of the spring, and the spring applies force to the lower part of the locking assembly.

[0014] Furthermore, the upper ends of the connecting plates on both sides are fixedly connected through a linkage plate, and the driving assembly includes a rotating rod, both ends of the rotating rod are rotatably connected to the slider, and at least one group of eccentric wheels is fixedly connected to the rotating rod. In the present embodiment, two groups of eccentric wheels are provided, and the two groups of eccentric wheels are respectively located on the upper part of the connecting plates, one end of the rotating rod is fixedly connected to the locking handle, and an elastic member is provided in the installation cavity, and the upper end surface of the elastic member is against the lower surface of the linkage plate.

[0015] Furthermore, the elastic member is a U-shaped spring or a spring.

[0016] The beneficial effects of the utility model are:

[0017] 1) The utility model provides locking components on both sides of the slider, and utilizes a driving component to drive the locking components on both sides to perform locking or unlocking actions on the linear guide rail, thereby improving the locking effect and stability.

[0018] 2) A wavy anti-slip pattern is provided on the outer surface of the locking head to ensure the locking effect between the locking head and the linear guide rail.

[0019] 3) The drive assembly uses a double-headed screw with opposite thread rotation directions at both ends. The two sides of the double-headed screw are threadedly connected to the connecting plate. By turning the locking handle, the double-headed screw is driven to rotate, so that the inner end surface of the locking head moves synchronously closer to or farther away from the linear guide, realizing the simultaneous locking and unlocking of the slider on both sides of the linear guide.

[0020] 4) A spring is installed in the blind hole on one side of the locking head to apply force to the lower part of the locking assembly, thereby ensuring the locking effect of the locking assembly, and the screw plug can be used to adjust the preload force of the spring, thereby further ensuring the locking effect of the locking assembly.

[0021] 5) The upper ends of the connecting plates on both sides are fixedly connected through a linkage plate. The driving assembly adopts a rotating rod and an eccentric wheel. By rotating the locking handle, the eccentric wheel on the rotating rod is driven to rotate. When the eccentric wheel rotates, the linkage plate and the locking heads at both ends are driven to move downward or upward synchronously with the cooperation of the elastic member. When the locking assembly moves downward, the lower surface of the locking head is abutted against the lower surface of the guide groove, thereby realizing the simultaneous locking and unlocking of the slider on both sides of the linear guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 The utility model is a schematic diagram of a linear guide pair structure with a locking function.

[0023] Attached Figure 2 It is a schematic diagram of the connection between the driving assembly and the locking assembly of Example 1 of the utility model.

[0024] Attached Figure 3 It is a schematic diagram of the locking assembly structure in the utility model.

[0025] Attached Figure 4 It is a schematic diagram of the connection between the driving assembly and the locking assembly of Example 2 of the utility model.

[0026] In the figure, 1. linear guide; 2. slider; 3. mounting cavity; 4. locking assembly; 41. locking head; 42. connecting plate; 43. anti-slip groove; 44. blind hole; 5. double-headed screw; 6. locking handle; 7. spring; 8. screw plug; 9. rotating rod; 10. eccentric wheel; 11. linkage plate; 12. elastic part. DETAILED DESCRIPTION

[0027] The following will be combined with the attached Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Example 1

[0030] like Figure 1 As shown, a linear guide pair with a locking function includes a guide rail and a slider 2 slidably mounted on the guide rail. Figure 2 As shown, the middle of the slider 2 is provided with a mounting cavity 3 with an opening at the lower end, and a locking assembly 4 is provided in the mounting cavity 3. Figure 3 As shown, the locking assembly 4 includes two locking heads 41 symmetrically arranged on both sides of the linear guide rail 1 and a connecting plate 42 integrally formed with the locking head 41, the locking head 41 is located in the guide groove of the linear guide rail 1, and the upper ends of the connecting plates 42 on both sides are connected to the driving assembly, and one end of the driving assembly is connected to the locking handle 6.

[0031] like Figure 3 As shown, the outer surface of the locking head 41 is provided with anti-slip grooves 43, which ensure the locking effect of the locking head 41 and the linear guide 1. The anti-slip grooves 43 are wavy, which increases the contact area between the anti-slip grooves 43 and the guide grooves, further ensuring the locking effect of the locking head 41 and the linear guide 1.

[0032] like Figure 2 As shown, the driving assembly includes a double-headed screw 5, both ends of which are rotatably connected to the slider 2, and the double-headed screw 5 is threadedly connected to the connecting plates 42 on both sides, and the threads at both ends of the double-headed screw 5 have opposite rotation directions, and one end of the double-headed screw 5 is fixedly connected to the locking handle 6. By rotating the locking handle 6, the double-headed screw 5 is driven to rotate, so that the inner end face of the locking head 41 is synchronously approached or moved away from the linear guide 1, thereby realizing the simultaneous locking and unlocking actions of the slider 2 on both sides of the linear guide 1.

[0033] like Figure 2 As shown, a blind hole 44 is provided on one side of the locking head 41, and a spring 7 is installed in the blind hole 44. Screw plugs 8 are symmetrically threaded on both sides of the slider 2. The screw plugs 8 abut against one end of the spring 7. The spring 7 applies force to the lower part of the locking assembly 4 to ensure the locking effect of the locking assembly 4. In addition, the screw plug 8 can be used to adjust the preload force of the spring 7 to further ensure the locking effect of the locking assembly 4.

[0034] Example 2

[0035] The difference from Example 1 is that Figure 4 As shown, the upper ends of the connecting plates 42 on both sides are fixedly connected by the linkage plate 11, and the driving assembly includes a rotating rod 9, and the two ends of the rotating rod 9 are rotatably connected to the slider 2. At least one group of eccentric wheels 10 is fixedly connected to the rotating rod 9. In the present embodiment, two groups of eccentric wheels 10 are provided, and the two groups of eccentric wheels 10 are respectively located at the upper part of the connecting plate 42. One end of the rotating rod 9 is fixedly connected to the locking handle 6. An elastic member 12 is provided in the mounting cavity 3, and the upper end surface of the elastic member 12 is against the lower surface of the linkage plate 11; by rotating the locking handle 6, the eccentric wheel 10 on the rotating rod 9 is driven to rotate. When the eccentric wheel 10 rotates, the linkage plate 11 and the locking heads 41 at both ends thereof are driven to move downward or upward synchronously with the cooperation of the elastic member 12. When the locking assembly 4 moves downward, the lower surface of the locking head 41 is against the lower surface of the guide groove, so that the slider 2 is locked and unlocked at both sides of the linear guide rail 1 at the same time.

[0036] The elastic member 12 is a U-shaped spring or a spring. Figure 4 As shown, in this embodiment, the elastic member 12 is a U-shaped spring sheet, and two groups of U-shaped spring sheets are provided. The two groups of U-shaped spring sheets are symmetrically installed on both sides of the linkage plate 11 .

[0037] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A linear guide pair with a locking function, comprising a guide rail and a slider slidably mounted on the guide rail, wherein a mounting cavity with an opening at the lower end is provided in the middle of the slider, and a locking assembly is provided in the mounting cavity, characterized in that: The locking assembly includes two locking heads symmetrically arranged on both sides of the linear guide rail and a connecting plate integrally formed with the locking head. The locking head is located in the guide groove of the linear guide rail, the upper ends of the connecting plates on both sides are connected to the driving assembly, and one end of the driving assembly is connected to the locking handle.

2. A linear guide pair with locking function according to claim 1, characterized in that: The outer surface of the locking head is provided with anti-skid patterns, and the anti-skid patterns are wavy.

3. A linear guide pair with locking function according to claim 1 or 2, characterized in that: The driving assembly includes a double-headed screw, both ends of which are rotatably connected to the slider, the double-headed screw is threadedly connected to the connecting plates on both sides, and the threads at both ends of the double-headed screw have opposite rotation directions, and one end of the double-headed screw is fixedly connected to the locking handle.

4. A linear guide pair with locking function according to claim 3, characterized in that: A blind hole is provided on one side of the locking head, a spring is installed in the blind hole, screw plugs are symmetrically threadedly connected on both sides of the slider, the screw plugs abut against one end of the spring, and the spring applies force to the lower part of the locking assembly.

5. A linear guide pair with locking function according to claim 1 or 2, characterized in that: The upper ends of the connecting plates on both sides are fixedly connected through a linkage plate, and the driving assembly includes a rotating rod, both ends of the rotating rod are rotatably connected to the slider, at least one set of eccentric wheels is fixedly connected to the rotating rod, one end of the rotating rod is fixedly connected to the locking handle, and an elastic member is provided in the installation cavity, and the upper end surface of the elastic member is against the lower surface of the linkage plate.

6. A linear guide pair with locking function according to claim 5, characterized in that: The elastic member is a U-shaped spring or a spring.

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