Multi-section foldable guide rail protection device
By designing a multi-section foldable rail protection device, using articulated connections and rolling bearings to reduce friction, the problems of difficulty in using the existing technology and friction wear in a cramped space environment are solved, and the effect of low space demand and efficient protection is achieved.
Patent Information
- Application Number
- CN202420292469.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-18
AI Technical Summary
The existing rail protection devices are difficult to use properly in a space-confined environment and are worn due to friction.
A multi-section foldable rail protection device is designed to connect the multi-section protective cover by articulation, and rolling bearings are installed at both ends of the bracket to reduce friction and wear.
The protective effect is achieved that can still be used normally in the case of space being cramped, and friction and wear are reduced through rolling bearings.
Smart Images
Figure CN222493330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine tools, and more specifically, to a multi-section foldable guide rail protection device. Background Art
[0002] During the operation of the machine tool, the machine tool guide surface should be equipped with a protective device to prevent chips and debris from falling onto the guide surface. Existing guide rail protective devices are of various forms, but most of them are installed in a straight line along the guide direction, and have certain requirements for the installation space in the guide direction. In some occasions, the space dimensions along the guide direction are relatively cramped. For example, for the protective device on the moving parts of the guide, in order to meet the protection of the moving parts from chips and debris in the moving path, one protection method requires a relatively long protective device to adapt to the protection of the moving parts in the moving path, and another protection method requires a relatively large space to adapt to the mobile protection of the protective device. Both methods have a common defect: they require a large space around the machine tool and are not suitable for use in a space-constrained environment. Utility Model Content
[0003] In view of this problem in practical application, the utility model aims to propose a multi-section foldable guide rail protection device, and the specific scheme is as follows:
[0004] A multi-section foldable guide rail protection device comprises a first section, a second section and a third section, wherein one end of the first section is fixed to a guide rail moving part, and the other end is connected to one end of the second section by a hinged manner, and the other end of the second section is connected to one end of the third section by a hinged manner, and the other end of the third section is a free end;
[0005] The device also includes a bracket, which is fixed to the end of the guide rail fixing part. The second section and the third section are supported on the guide rail through the bracket, and the second section and the third section are slidably arranged on the bracket.
[0006] Furthermore, rolling bearings are provided at both ends of the bracket, and the bracket is rollingly connected to the second section and the third section via the rolling bearings.
[0007] Furthermore, the bracket includes a roller bracket, a bracket shaft, a sleeve and an elastic retaining ring for the shaft. The roller bracket is fixed to the guide rail fixing part by screws, and the bracket shaft is rotatably connected to the roller bracket. Both ends of the bracket shaft pass through the roller bracket and are connected to the rolling bearing via the sleeve. The elastic retaining ring is provided on the outside of the rolling bearing.
[0008] Further, the first section is a baffle, which is arranged parallel to the guide rail and located on the bracket, and the second section and the second section are both pull covers.
[0009] Furthermore, the free end of the third section is an arc surface bent toward the guide rail surface.
[0010] Furthermore, when the second section and the third section are in parallel with the guide rail surface, the bottom horizontal planes of the second section and the third section are above the top horizontal plane of the bracket.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] (1) By setting up a multi-section foldable protective device, the device requires less space around the machine tool when performing protection, and the protective device can be used normally even in a cramped environment;
[0013] (2) By installing rolling bearings at both ends of the bracket, the wear caused by friction when the second and third sections of the cover slide on the bracket is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;
[0015] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle part;
[0016] Figure 3 It is a structural schematic diagram of the second section in the utility model;
[0017] Figure 4 It is a structural schematic diagram of the third section in the utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the bracket of the utility model (from a frontal perspective);
[0019] Figure 6 It is a cross-sectional view of the bracket in the present invention (from a top view).
[0020] Figure numerals: 1. first section; 2. second section; 3. third section; 4. bracket; 41. rolling bearing; 42. support roller bracket; 43. bracket shaft; 44. sleeve; 45. elastic retaining ring for shaft; 5. guide rail moving part; 6. guide rail fixed part; 7. first articulated space; 8. first articulated seat; 9. second articulated space; 10. second articulated seat. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] like Figure 1-2As shown, a multi-section foldable guide rail protection device includes a first section 1, a second section 2 and a third section 3. The first section 1, the second section 2 and the third section 3 are all protective covers. One end of the first section 1 is fixed to the guide rail moving part 5, and the other end is connected to one end of the second section 2 by a hinged manner. The other end of the second section 2 is connected to one end of the third section 3 by a hinged manner, and the other end of the third section 3 is a free end.
[0023] The device also includes a bracket 4, which is fixed to the end of the guide rail fixing part 6. The second section 2 and the third section 3 are supported on the guide rail through the bracket 4, and the second section 2 and the third section 3 are slidably arranged on the bracket 4.
[0024] When the machine tool is working, the guide rail moving part 5 moves along the guide rail on the guide rail fixed part 6, and the moving part drives the first section 1 to move, and at the same time drives the second section 2 and the third section 3 to slide on the bracket 4. When the center of gravity of the third section 3 falls outside the bracket 4, due to the action of gravity and the hinge relationship, the free end of the third section 3 bends downward. In the sliding process before the third section 3 is bent, the bottom surface of the cover of the third section 3 is always in contact with the top of the bracket 4. With the movement of the guide rail moving part 5, the third section 3 is completely bent as a whole to be parallel to the side of the machine tool. Then, with the further movement of the guide rail moving part 5, the bottom surface of the cover of the second section 2 is in contact with the top of the bracket 4, and then it is also bent until it is completely parallel to the side of the machine tool. During the entire protection process, the protective device always has a low space requirement for the front part of the machine tool, avoiding the situation where the front end of the protective device protrudes from the machine tool and occupies the space in front of the machine tool during the movement of the moving part, reducing the demand for the environment around the machine tool, and the protective device can be used normally even in a cramped environment.
[0025] Specifically, combined Figure 3-4 The first section 1 is a baffle, which is arranged parallel to the guide rail as a whole. One end of the first section 1 is fixed to the guide rail moving part 5 by a hexagon socket screw with a shoulder, and the other end is bent to form a first hinge space 7, and the bending angle is preferably 90°.
[0026] The second section 2 is a pull cover, which includes a cover shell and a connecting part. A first hinge seat 8 is provided at one end of the cover shell, and the other end is extended and bent to form a connecting part; this end of the cover shell of the second section 2 is hinged to one end of the first section 1 where a first hinge space 7 is formed through the first hinge seat 8. At this time, the first hinge seat 8 is just located in the first hinge space 7, and the first hinge space 7 provides an hinge space for the first hinge seat 8; the connecting part has a second hinge space 9.
[0027] The third section 3 is also a pulling cover, including a cover shell body, and a second hinge seat 10 is provided at one end of the cover shell body. This end of the cover shell body of the third section 3 is hinged to the connecting part formed with a second hinge space 9 on the second section 2 through the second hinge seat 10. At this time, the second hinge seat 10 is just located in the second hinge space 9, and the second hinge space 9 provides an hinge space for the second hinge seat 10; the free end of the third section 3 is an arc surface bent toward the guide rail surface, which can not only limit the third section 3 from detaching from the bracket 4, but also prevent the splashing of cutting debris at the front end of the machine tool.
[0028] In addition, to ensure that the second section 2 and the third section 3 can normally transition to the top of the bracket 4, the bottom horizontal planes of the second section 2 and the third section 3 when they are parallel to the guide rail surface are above the top horizontal plane of the bracket 4. In this way, when the third section 3 slides to completely detach from the bracket 4 and transitions to the second section 2, the second section 2 can just contact the top of the bracket 4 without getting stuck or being discontinuous.
[0029] The bracket 4 plays a supporting role in the protective device. Further, as Figure 5-6 As shown, combined with Figure 1-2 In order to avoid the wear caused by friction when the cover of the second section 2 and the third section 3 slides on the bracket 4, rolling bearings 41 are installed at both ends of the bracket 4. The bracket 4 is rollingly connected with the second section 2 and the third section 3 through the rolling bearings 41 to reduce the friction between the bracket 4 and the cover of the second section 2 and the third section 3, thereby reducing wear. Specifically, in a possible embodiment, the bracket 4 includes a roller bracket 42, a bracket shaft 43, a cushion sleeve 44 and a shaft elastic retaining ring 45. The roller bracket 42 is fixed on the guide rail fixing part 6. The roller bracket 42 is composed of a bottom plate and a fixing plate arranged parallel to the top of the bottom plate at both ends. The bottom plate is fixed to the guide rail fixing part 6 by screws. The screws are preferably hexagon socket head screws M5×10. The bracket shaft 43 is rotatably connected to the fixing plate of the roller bracket 42. The rotating shafts at both ends of the bracket shaft 43 pass through the fixing plate of the roller bracket 42 and are connected to the rolling bearings 41 through the cushion sleeves 44. The rolling bearing 41 adopts a deep groove ball bearing, and a shaft elastic retaining ring 45 is arranged on the outer side of the rolling bearing 41. The bottom surfaces of the second section 2 and the third section 3 are in contact with the top of the rolling bearing 41 and are connected in a rolling manner to reduce the friction during the sliding process.
[0030] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A multi-section foldable guide rail protection device, characterized in that: It comprises a first section, a second section and a third section, wherein one end of the first section is fixed to the guide rail moving part, and the other end is connected to one end of the second section by a hinged manner, and the other end of the second section is connected to one end of the third section by a hinged manner, and the other end of the third section is a free end; The device also includes a bracket, which is fixed to the end of the guide rail fixing part. The second section and the third section are supported on the guide rail through the bracket, and the second section and the third section are slidably arranged on the bracket.
2. The multi-section foldable guide rail protection device according to claim 1, characterized in that: Rolling bearings are arranged at both ends of the bracket, and the bracket is rollingly connected with the second section and the third section via the rolling bearings.
3. The multi-section foldable guide rail protection device according to claim 2, characterized in that: The bracket includes a roller bracket, a bracket shaft, a sleeve and an elastic retaining ring for the shaft. The roller bracket is fixed to the guide rail fixing part by screws, and the bracket shaft is rotatably connected to the roller bracket. Both ends of the bracket shaft pass through the roller bracket and are connected to the rolling bearing via the sleeve. The elastic retaining ring is provided on the outside of the rolling bearing.
4. The multi-section foldable guide rail protection device according to claim 1, characterized in that: The first section is a baffle, which is arranged parallel to the guide rail and located on the bracket, and the second section and the second section are both pull covers.
5. The multi-section foldable guide rail protection device according to claim 1, characterized in that: The free end of the third section is an arc surface bent toward the guide rail surface.
6. The multi-section foldable guide rail protection device according to claim 1, characterized in that: When the second section and the third section are in parallel with the guide rail surface, the bottom horizontal planes of the second section and the third section are above the top horizontal plane of the bracket.