Anti-rotation rodless cylinder slide mechanism
By combining the design of the frame structure and the floating module, the problem of self-rotation of the rodless cylinder slide mechanism during operation is solved, achieving higher motion accuracy and stability, and making it suitable for various automated equipment.
Patent Information
- Application Number
- CN202520947913.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-14
AI Technical Summary
Traditional rodless cylinder slide mechanisms are prone to self-rotation due to load changes and external interference during operation, which affects motion accuracy and stability.
The design employs a combination of frame structure, linear guide rail, tooling slide, rodless cylinder, and floating module. The linear guide rail guides the slider, and the close fit of the floating module restricts the slider's rotational freedom, preventing it from rotating on its own.
It effectively prevents the slider from rotating during movement, improving the accuracy and stability of the equipment. It also features a simple structure and easy installation.
Smart Images

Figure CN224674313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pneumatic slide mechanism, and in particular to a rodless cylinder slide mechanism for preventing self-rotation. Background Technology
[0002] In automated equipment, cylinder-driven slide mechanisms are widely used in various applications. Traditional rod-type cylinders suffer from problems such as complex mechanisms and large space requirements, while rodless cylinders offer advantages such as compact structure and convenient installation. However, during operation, traditional rodless cylinder slide mechanisms are prone to exhibiting rotation of the mounting slider around its axis due to factors such as load changes and external interference. Utility Model Content
[0003] This application aims to provide an anti-rotation rodless cylinder slide mechanism, which adopts a simple and compact structural design to effectively prevent the slide from rotating during the movement process and improve the motion accuracy and stability.
[0004] This application provides an anti-rotation rodless cylinder slide mechanism, comprising: The frame structure includes: two base plates and two crossbeams. The first surface of the base plate has a first positioning groove, and the two ends of the crossbeams are respectively fixedly connected to the first surfaces of the two base plates. Two sets of linear guides are fixedly connected to two crossbeams respectively; The tooling slide is a guide rail slider that is fixedly connected to two sets of linear guide rails; it has a through groove that connects its first and second surfaces, and a baffle is detachably fixedly connected to the first surface at the through groove position; The rodless cylinder has mounting bases at both ends that are fixedly connected to the first positioning grooves of the two base plates; it is located between the base plate and the tooling slide. The floating module is connected to the mounting slider of the rodless cylinder; it is located in the through groove and also fits against the inner wall of the through groove; the first side and the second side respectively abut against the baffle and the mounting slider.
[0005] In some embodiments, the two sets of linear guides are fixedly connected at the first surface of the crossbeam away from the substrate.
[0006] In some embodiments, the floating module includes: The first block is used to complete the floating module: it connects to the mounting slider and can move relative to the mounting slider; it is located in the through groove and also fits against the inner wall of the through groove; it abuts against the baffle. The second block is telescopically connected to the first block; it is used to hold the mounting slider in the floating module. The stud is used to drive the extension and retraction of the second block.
[0007] In some embodiments, the baffle includes: a plate for connection with the tooling slide, and a plurality of adjusting bolts threaded to the plate and for the floating module to abut against.
[0008] In some embodiments, the mounting slider can enter two first positioning slots.
[0009] In some embodiments, it also includes two sets of buffers, each mounted on one of the two base plates.
[0010] In summary, this application discloses an anti-rotation rodless cylinder slide mechanism, comprising: a frame structure, two sets of linear guides, a tooling slide, a rodless cylinder, and a floating module. The linear guides act as a guiding mechanism to guide the tooling slide, effectively restricting its rotational degrees of freedom. A through-slot connecting the tooling slide's first and second surfaces is designed, and a baffle is installed at the through-slot position on the first surface. A floating module is designed between the mounting slider of the rodless cylinder and the through-slot. The floating module is connected to the mounting slider and fits tightly against the inner wall of the through-slot, the mounting slider, and the baffle, thereby establishing a stable and secure connection between the mounting slider and the tooling slide. Combined with the linear guides' restriction of the tooling slide's rotational degrees of freedom, the mounting slider can only move along the guide direction, limiting its possibility of rotation around an axis. The beneficial effects are: simple structure and convenient installation; effective prevention of rotation of the mounting slider of the rodless cylinder during movement, improving the accuracy and stability of the equipment; applicable to various automated equipment, and has broad application prospects. Attached Figure Description
[0011] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.
[0012] Figure 1 This is a top view of this application; Figure 2 This is a schematic diagram of the installation of a rodless cylinder and its frame structure. Figure 3 This is a schematic diagram of the frame structure; Figure 4 A schematic diagram showing the connection between the floating module and the mounting slider; Figure 5 Here are some other schematic diagrams of embodiments of the floating module; Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle.
[0013] In the picture, 1. Frame structure; 11. Base plate; 11a. First positioning groove; 12. Crossbeam; 2. Linear guide rail; 2a. Guide rail slider; 3. Tooling slide; 3a. Through groove; 3b. Baffle; 3b1. Plate body; 3b2. Adjusting bolt; 4. Rodless cylinder; 4a. Mounting base; 4b. Mounting slider; 5. Floating module; 51. First block; 52. Second block; 53. Stud; 5a. First hole; 5b. Connecting bolt; 5c. Guide sleeve; 6. Buffer. Specific Implementation
[0014] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.
[0015] Please see Figure 1 and Figure 2 A rodless cylinder slide mechanism for preventing self-rotation includes: a frame structure 1, two sets of linear guides 2, a tooling slide 3, a rodless cylinder 4, and a floating module 5.
[0016] Please see Figure 2 and Figure 3 The frame structure 1 includes: two base plates 11 and two crossbeams 12.
[0017] The first surface of the substrate 11 has a first positioning groove 11a. For ease of subsequent explanation of the orientation, [the groove is...]. Figure 1 Set the view to a top-down perspective, and set the first surface as the top surface. The first surface of subsequent components will also be their own top surface.
[0018] The first positioning groove 11a requires precision machining for subsequent positioning of the rodless cylinder 4. Both ends of the rodless cylinder 4 are mounting seats 4a, which are fixedly connected to the first positioning grooves 11a of the two base plates 11. Specifically, the bottom surface of the mounting seat 4a is in contact with the inner bottom wall of the first positioning groove 11a, and the two sides of the mounting seat 4a are in contact with the two inner side walls of the first positioning groove 11a. After the rodless cylinder 4 is installed on the two base plates 11, the positioning between the mounting seats 4a and the first positioning grooves 11a ensures the alignment and parallelism between the two base plates 11.
[0019] The two ends of the crossbeam 12 are fixedly connected to the first surface of the two base plates 11, respectively, and the fixing method can be bolts. After the crossbeam 12 and the base plates 11 are fixedly connected, a frame structure 1 is formed to ensure stability.
[0020] Two sets of linear guides 2 are fixedly connected to two crossbeams 12. More specifically, the crossbeams 12 have a second positioning groove, referring to the first positioning groove 11a, which is used for positioning the linear guides 2. The linear guides 2 are precision machined, and the matching mounting sliders 4b are made of high-strength materials.
[0021] Please see Figure 1 and Figure 2 The tooling slide 3 is fixedly connected to the guide rail slider 2a of the two sets of linear guide rails 2, and the fixed connection can be made by bolts. The tooling slide 3 also has a through groove 3a connecting its first and second surfaces. External workpieces or mechanisms can be externally docked through the tooling slide 3.
[0022] Please see Figure 2 and Figure 5 The dimensions of the crossbeam 12 in the vertical direction are designed to position the rodless cylinder 4 between the base plate 11 and the tooling slide 3. The rodless cylinder 4 uses high-precision pneumatic components to ensure stable thrust and speed.
[0023] Please see Figure 1 , Figure 2 and Figure 5 The floating module 5 is located inside the through groove 3a and is also attached to the inner wall of the through groove 3a. That is, the through groove 3a is also precision machined. The floating module 5 only has the freedom to move up and down relative to the tooling slide table 3.
[0024] Please see Figure 4 The floating module 5 is also connected to the mounting slider 4b of the rodless cylinder 4. The floating module 5 can also move relative to the mounting slider 4b, which is the only up-and-down movement of the floating module 5 relative to the tooling slide 3. The connection between the floating module 5 and the mounting slider 4b can be as follows: the floating module 5 has multiple through holes as first holes 5a; a guide sleeve 5c is inserted into the first hole 5a, and there is a transition fit between the guide sleeve 5c and the first hole 5a; a bolt is threaded through the guide sleeve 5c and connected to the mounting slider 4b.
[0025] For the guide sleeve 5c, the mounting slider 4b, the bolt that fixes the two, and the floating module 5, the inner diameter of the guide sleeve 5c can be slightly larger than the bolt thread, and the inner diameter of the first hole 5a can be slightly larger than the bolt nut, so that multiple guide sleeves 5c and multiple threaded holes can be easily aligned one by one, reducing the accuracy requirements.
[0026] Please see Figure 1 and Figure 2In some embodiments, the two sets of linear guides 2 are fixedly connected to the two crossbeams 12 at the first surface of the crossbeams 12 away from the substrate 11.
[0027] In this way, during assembly, the relative adjustments between the crossbeam 12 and the base plate 11, and between the tooling slide 3 and the guide rail slider 2a (the through holes on the crossbeam 12 and the tooling slide 3 for bolts to pass through are slightly larger than the bolt threads) can be used to assist in aligning multiple guide sleeves 5c and multiple threaded holes one by one. The specific assembly process can be as follows: The rodless cylinder 4 is fixedly connected to two base plates 11; the linear guide rail 2 is fixedly connected to two crossbeams 12.
[0028] Two crossbeams 12 are connected to two base plates 11, and the bolts are not tightened at first; the tooling slide 3 is connected to the guide rail slider 2a of two linear guide rails 2, and the bolts are not tightened at first.
[0029] Move the tooling slide 3 so that the through slot 3a corresponds to the mounting slider 4b of the rodless cylinder 4, and insert the floating module 5 into the through slot 3a.
[0030] By adjusting the relative positions of the crossbeam 12 and the base plate 11, and the tooling slide 3 and the guide rail slider 2a, the multiple guide sleeves 5c inserted in the floating module 5 can be more easily aligned with the multiple threaded holes of the mounting slider 4b.
[0031] Tighten the bolts to secure the connecting sleeve and mounting slider 4b; tighten the bolts between the crossbeam 12 and the base plate 11, and tighten the bolts between the tooling slide 3 and the guide rail slider 2a.
[0032] The first surface of the tooling slide 3 is detachably fixedly connected to a baffle 3b at the position of the through groove 3a, and the fixed connection can be made by fasteners.
[0033] The first and second sides of the floating module 5 abut against the baffle 3b and the mounting slider 4b, respectively.
[0034] Please see Figure 1 and Figure 2 In some embodiments, the baffle 3b includes: a plate 3b1 for connecting to the tooling slide 3, and a plurality of adjusting bolts 3b2 threaded to the plate 3b1 and for the floating module 5 to abut against. Accordingly, the floating module 5 is a single block.
[0035] Rotate multiple adjusting bolts 3b2 to press down against the first surface of the floating module 5, and make the second surface of the floating module 5 press down against the mounting slider 4b.
[0036] Please see Figure 5 and Figure 6 In some implementations, the floating module 5 includes: a first block 51, a second block 52, and a stud 53.
[0037] The first block 51 is used to complete the following in the floating module 5: it is connected to the mounting slider 4b and can move relative to the mounting slider 4b; it is located in the through groove 3a and is also attached to the inner wall of the through groove 3a; it abuts against the baffle 3b. That is, the connection between the floating module 5 and the mounting slider 4b is set between the first block 51 and the mounting slider 4b.
[0038] The second block 52 is telescopically connected to the first block 51 and is used to complete the floating module 5 by abutting the mounting slider 4b.
[0039] The stud 53 is used to drive the first block 51 to extend and retract. More specifically, the second block 52 is circular, the first block 51 has a groove for the second block 52 to retract and a threaded through hole communicating with the groove, and the stud 53 is threadedly connected to the threaded through hole and its lower end is fixedly connected to the second block 52.
[0040] When the floating module 5 is inserted into the through slot 3a, the second block 52 is retracted into the first block 51. The baffle 3b is fixedly connected to the tooling slide 3, the stud 53 is rotated, which causes the second block 52 to extend and abut against the mounting slider 4b, and then the first block 51 is moved up to abut against the stop block.
[0041] The linear guide 2 acts as a guiding mechanism to guide the tooling slide 3, effectively restricting the rotational freedom of the tooling slide 3. A through groove 3a connecting the first and second surfaces of the tooling slide 3 is designed, and a baffle 3b is installed at the position of the through groove 3a on the first surface. A floating module 5 is designed between the mounting slider 4b of the rodless cylinder 4 and the through groove 3a. The floating module 5 is connected to the mounting slider 4b and fits tightly against the inner wall of the through groove 3a, the mounting slider 4b, and the baffle 3b, thus establishing a stable and secure connection between the mounting slider 4b and the tooling slide 3. Combined with the restriction of the rotational freedom of the tooling slide 3 by the linear guide 2, the mounting slider 4b can only move along the guide rail direction, limiting its possibility of rotation around an axis.
[0042] Please see Figure 1 and Figure 2 In some embodiments, the mounting slider 4b can enter the two first positioning slots 11a.
[0043] During its movement, the tooling slide 3 typically requires two limit stops. These stops allow the external workpiece or mechanism docked to the tooling slide 3 to perform corresponding operations. When the tooling slide 3 is at these two limit stops, the mounting slider 4b enters the corresponding first positioning groove 11a. Within the first positioning groove 11a, the second surface of the mounting slider 4b can adhere to the inner bottom wall of the first positioning groove 11a, thus limiting the rotation of the mounting slider 4b around its axis and improving its stability at these two limit stops.
[0044] Please see Figure 1 and Figure 2 In some embodiments, the anti-rotation rodless cylinder slide mechanism further includes two sets of buffers 6. The two sets of buffers 6 are respectively mounted on two base plates 11. More specifically, there may be two sets of buffers 6, which are respectively mounted on both sides of the base plate 11.
Claims
1. A rodless cylinder slide mechanism for preventing self-rotation, characterized in that, include: The frame structure (1) includes: two base plates (11) and two crossbeams (12). The first surface of the base plate (11) has a first positioning groove (11a), and the two ends of the crossbeams (12) are respectively fixedly connected to the first surface of the two base plates (11). Two sets of linear guide rails (2) are fixedly connected to two crossbeams (12); The tooling slide (3) has a guide rail slider (2a) fixedly connected to two sets of linear guide rails (2); it has a through groove (3a) connecting its first surface and second surface, and a baffle (3b) is detachably fixedly connected to the first surface at the position of the through groove (3a); The rodless cylinder (4) has mounting seats (4a) at both ends that are fixedly connected to the first positioning grooves (11a) of the two base plates (11); it is located between the base plate (11) and the tooling slide (3). The floating module (5) is connected to the mounting slider (4b) of the rodless cylinder (4); it is located in the through groove (3a) and also fits against the inner wall of the through groove (3a); the first surface and the second surface respectively abut against the baffle (3b) and the mounting slider (4b).
2. The anti-rotation rodless cylinder slide mechanism according to claim 1, characterized in that, The two sets of linear guides (2) are fixedly connected to the two crossbeams (12) at the first surface of the crossbeam (12) away from the substrate (11).
3. The anti-rotation rodless cylinder slide mechanism according to claim 1, characterized in that, The floating module (5) includes: The first block (51) is used to complete the floating module (5): it is connected to the mounting slider (4b) and can move relative to the mounting slider (4b); it is located in the through groove (3a) and also fits against the inner wall of the through groove (3a); it abuts against the baffle (3b); The second block (52) is telescopically connected to the first block (51); it is used to complete the floating module (5) by abutting against the mounting slider (4b). The stud (53) is used to drive the extension and retraction of the second block (52).
4. The anti-rotation rodless cylinder slide mechanism according to claim 1, characterized in that, The baffle (3b) includes: a plate (3b1) for connecting with the tooling slide (3) and a plurality of adjusting bolts (3b2) threaded to the plate (3b1) and for the floating module (5) to abut against.
5. The anti-rotation rodless cylinder slide mechanism according to claim 1, characterized in that, The mounting slider (4b) can enter the two first positioning slots (11a).
6. The anti-rotation rodless cylinder slide mechanism according to claim 1, characterized in that, Also includes: Two sets of buffers (6) are respectively installed on two base plates (11).