A high-strength anti-impact and anti-scratching outer sheet metal cover for machine tool

CN224615850UActive Publication Date: 2026-08-11FUJIAN HEISHI PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]现有机床钣金护罩主要存在一些问题,其一,抗冲击结构单一,多依赖刚性金属板材直接承受外力,缺乏缓冲机制,导致防护板易因局部应力集中而变形或破裂;其二,表面防护性能薄弱,长期暴露于切屑、油污等环境中易产生划痕或腐蚀,缩短设备使用寿命

Benefits of technology

[0019]本实用新型通过设置防护板,主体外壳受到冲击时,冲击物首先于防护板的表面上,随后防护板向靠近主体外壳一端的表面进行移动,同步滑柱后端的连接板向复位弹簧进行挤压,滑块在滑轨的内部进行滑动,使得受到的冲击进行吸收,避免直接对主体外壳进行冲击,当冲击完成后,防护板在复位弹簧的回弹下进行复位。

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Abstract

This utility model relates to the field of machine tool outer sheet metal protective cover technology, and discloses a high-strength machine tool outer sheet metal protective cover that is impact-resistant and scratch-resistant. It includes a main shell, an impact-resistant component fixedly connected inside the main shell, a partition fixedly connected to the inner wall of the main shell, and the impact-resistant component including a fixing plate. A return spring is fixedly connected to the front end of the fixing plate, a connecting plate is fixedly connected to the front end of the return spring, and a sliding column is fixedly connected to the front end of the connecting plate. By setting up the protective plate, when the main shell is impacted, the impactor first strikes the surface of the protective plate, and then the protective plate moves towards the surface closer to the main shell. Simultaneously, the connecting plate at the rear end of the sliding column presses against the return spring, and the slider slides inside the slide rail, absorbing the impact and preventing direct impact on the main shell. After the impact is complete, the protective plate returns to its original position under the rebound of the return spring.
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Description

Technical Field

[0001] This utility model relates to the technical field of machine tool outer sheet metal protective cover, specifically a high-strength machine tool outer sheet metal protective cover that is impact-resistant and scratch-resistant. Background Technology

[0002] Machine tool sheet metal guards are protective devices used to protect critical components such as machine tool guideways and lead screws from the intrusion of contaminants such as cutting fluid, metal shavings, and dust. They are typically made of high-quality cold-rolled steel sheets processed through laser cutting and bending, possessing excellent rigidity and oil and corrosion resistance. The surface of the guard undergoes special treatment to effectively resist the high temperatures and corrosive substances generated during machine tool operation. Their design can be customized according to the shape and size of the machine tool guideways, and they are fixed to both sides of the guideways using connectors.

[0003] Existing sheet metal protective covers for machine tools have several problems. First, their impact-resistant structure is simple, relying mainly on rigid metal plates to directly bear external forces, lacking a buffer mechanism. This makes the protective plates prone to deformation or cracking due to localized stress concentration. Second, their surface protection performance is weak, and long-term exposure to chips, oil, and other environments can easily cause scratches or corrosion, shortening the service life of the equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-strength machine tool outer sheet metal protective cover that is impact-resistant and scratch-resistant, including a main shell, an anti-impact component fixedly connected inside the main shell, and a partition fixedly connected to the inner wall of the main shell;

[0005] The impact-resistant component includes a fixed plate, a return spring fixedly connected to the front end of the fixed plate, a connecting plate fixedly connected to the front end of the return spring, a sliding column fixedly connected to the front end of the connecting plate, a slider fixedly connected to the surface of the connecting plate, a slide rail slidably connected to the surface of the slider, a protective plate fixedly connected to the front end of the sliding column, a scratch-resistant coating on the surface of the protective plate, a rubber gasket (first type) sleeved on the surface of the sliding column, a silicone gasket sleeved on the surface of the return spring sliding column, and a rubber gasket (second type) sleeved on the surface of the sliding column.

[0006] Through the above technical solution, the impact-resistant component, via a series design of a fixed plate, a return spring, a connecting plate, and a sliding column, transforms the protective plate into a movable buffer. When the main shell is impacted, the protective plate drives the sliding column to compress the return spring, and the slider slides along the guide rail, forming an energy absorption path. The three-layer elastic superposition structure of rubber pad one, silicone pad, and rubber pad two dissipates the impact kinetic energy through gradual deformation, preventing rigid collisions from damaging the main shell. The scratch-resistant coating is directly attached to the surface of the protective plate, forming a hardness gradient protective layer to resist scratches from metal shavings or tools.

[0007] The partition is provided in two parts, and the two shock-absorbing components are evenly distributed on the surface with respect to the center of the rear end surface of the main shell. The fixing plate is provided in two parts, and the two fixing plates are evenly distributed on the inner wall with respect to the center of the rear end surface of the main shell. The two fixing plates are located at the ends of the partition that are far apart from each other.

[0008] The above technical solution separates the buffer component from the main body shell using a partition.

[0009] The material of the scratch-resistant coating is a ceramic-based coating.

[0010] Through the above technical solutions, the ceramic-based anti-scratch coating has the characteristics of high hardness and low coefficient of friction, which significantly improves the wear resistance of the protective plate surface. At the same time, its dense microstructure can isolate moisture and oil stains from penetrating, reducing the risk of corrosive media eroding the main shell.

[0011] The rear end of the slide rail is fixedly connected to the surface of the protective plate, and the slide column penetrates the inner wall of the main body shell.

[0012] The silicone pad is located between rubber pad one and rubber pad two, which are located between the main body shell and the protective plate.

[0013] Through the above technical solution, the design of the silicone pad nested between two rubber pads utilizes the complementary properties of the high elasticity of silicone and the high wear resistance of rubber to achieve graded absorption of impact energy: the first rubber pad quickly disperses the instantaneous impact force, the silicone pad extends the buffer time through the hysteresis effect, and the second rubber pad prevents excessive deformation of the silicone from causing structural failure.

[0014] An extension side plate is fixedly connected to the rear end of the main body shell, and mounting holes are provided on the surface of the extension side plate.

[0015] Through the above technical solution, the extended side plate achieves a rigid connection between the protective cover and the machine tool frame through the mounting holes. Its extended structure can cover the traditional sheet metal joints, preventing foreign objects from entering through the gaps and causing secondary damage, while providing space for the displacement of the protective plate.

[0016] The number of mounting holes is four, and the four mounting holes are evenly distributed on the surface with symmetry around the center of the rear end surface of the extended side plate.

[0017] The four mounting holes are designed to be centrally symmetrically distributed, which ensures that the guard is subjected to uniform force when clamped on the machine tool surface and that the preload is evenly distributed. This prevents stress concentration or vibration loosening caused by installation deviation and ensures long-term stability.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features a protective plate. When the main body shell is impacted, the impactor first strikes the surface of the protective plate, and then the protective plate moves towards the surface closer to the main body shell. Simultaneously, the connecting plate at the rear end of the synchronous slide column presses against the return spring, and the slider slides inside the slide rail, thus absorbing the impact and preventing direct impact on the main body shell. After the impact is complete, the protective plate returns to its original position under the rebound of the return spring.

[0020] This invention incorporates a silicone pad and an anti-scratch coating. The protective plate first compresses the rubber pad, which in turn compresses the silicone pad, thus absorbing the impact force a second time and preventing the impact force from directly affecting the surface of the main body shell and causing damage. At the same time, the anti-scratch coating on the surface of the protective plate increases its wear resistance and prevents scratches on the machine shell. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear-end structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the impact-resistant component of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall disassembled structure of the impact-resistant component of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A.

[0026] In the diagram: 1. Main body shell; 2. Impact-resistant assembly; 21. Fixing plate; 22. Return spring; 23. Connecting plate; 24. Sliding column; 25. Sliding block; 26. Slide rail; 27. Protective plate; 28. Scratch-resistant coating; 29. ​​Rubber gasket one; 210. Silicone gasket; 211. Rubber gasket two; 3. Partition plate; 4. Extended side plate; 5. Mounting hole. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-5This embodiment provides a high-strength, impact-resistant, and scratch-resistant machine tool outer sheet metal protective cover, which includes a main body shell 1, an impact-resistant component 2 fixedly connected inside the main body shell 1, and a partition 3 fixedly connected to the inner wall of the main body shell 1.

[0030] The impact-resistant component 2 includes a fixed plate 21, a return spring 22 fixedly connected to the front end of the fixed plate 21, a connecting plate 23 fixedly connected to the front end of the return spring 22, a sliding column 24 fixedly connected to the front end of the connecting plate 23, a slider 25 fixedly connected to the surface of the connecting plate 23, a slide rail 26 slidably connected to the surface of the slider 25, a protective plate 27 fixedly connected to the front end of the sliding column 24, a scratch-resistant coating 28 on the surface of the protective plate 27, a rubber gasket 29 sleeved on the surface of the sliding column 24, and a silicone gasket 210 sleeved on the surface of the return spring 22 and the sliding column 24. Rubber pad 211 is fitted onto the surface of the main body shell 1. When the main body shell 1 is impacted, the impactor first hits the surface of the protective plate 27, and then the protective plate 27 moves towards the surface of the main body shell 1. The connecting plate 23 at the rear end of the synchronous slide column 24 presses against the return spring 22, and the slider 25 slides inside the slide rail 26 to absorb the impact. When the rubber pad 29 is pressed, it will press against the silicone pad 210, which will absorb the impact force a second time and prevent the impact force from directly acting on the surface of the main body shell 1 and causing damage to it.

[0031] There are two partitions 3. The two impact-resistant components 2 are evenly distributed on the surface of the rear end surface of the main body shell 1. There are two fixing plates 21. The two fixing plates 21 are evenly distributed on the inner wall of the rear end surface of the main body shell 1. The two fixing plates 21 are located at the ends of the partitions 3 that are far apart from each other.

[0032] The anti-scratch coating 28 is made of ceramic-based coating. The ceramic-based anti-scratch coating 28 has the characteristics of high hardness and low coefficient of friction, which significantly improves the wear resistance of the protective plate surface. At the same time, its dense microstructure can isolate moisture and oil stains from penetrating, reducing the risk of corrosive media eroding the main shell.

[0033] The rear end of the slide rail 26 is fixedly connected to the surface of the protective plate 27, and the slide column 24 penetrates the inner wall of the main body shell 1.

[0034] The silicone pad 210 is located between the first rubber pad 29 and the second rubber pad 211, and the first rubber pad 29 and the second rubber pad 211 are located between the main body shell 1 and the protective plate 27.

[0035] An extension side plate 4 is fixedly connected to the rear end of the main body shell 1, and mounting holes 5 are provided on the surface of the extension side plate 4.

[0036] The number of mounting holes 5 is set to four, and the four mounting holes 5 are evenly distributed on the surface of the rear end surface of the extended side plate 4 in a symmetrical manner.

[0037] The implementation principle of the high-strength, impact-resistant and scratch-resistant outer sheet metal protective cover for machine tools in this application embodiment is as follows: when the main body shell 1 is impacted, the impactor first hits the surface of the protective plate 27, and then the protective plate 27 moves towards the surface near one end of the main body shell 1. The connecting plate 23 at the rear end of the synchronous slide column 24 presses against the return spring 22, and the slider 25 slides inside the slide rail 26, so that the impact is absorbed and the main body shell 1 is not directly impacted. After the impact is completed, the protective plate 27 is reset under the rebound of the return spring 22.

[0038] When impacted, the protective plate 27 first compresses the rubber pad 29, which in turn compresses the silicone pad 210, thus absorbing the impact force a second time and preventing the impact force from directly acting on the surface of the main body shell 1 and causing damage. At the same time, the protective plate 27 is coated with an anti-scratch coating 28 to increase its wear resistance and prevent scratches on the shell.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-strength, impact-resistant, and scratch-resistant sheet metal protective cover for machine tools, characterized in that: It includes a main shell (1), an anti-impact component (2) is fixedly connected inside the main shell (1), and a partition (3) is fixedly connected to the inner wall of the main shell (1); The impact-resistant component (2) includes a fixing plate (21), a return spring (22) is fixedly connected to the front end of the fixing plate (21), a connecting plate (23) is fixedly connected to the front end of the return spring (22), a sliding column (24) is fixedly connected to the front end of the connecting plate (23), a slider (25) is fixedly connected to the surface of the connecting plate (23), a slide rail (26) is slidably connected to the surface of the slider (25), a protective plate (27) is fixedly connected to the front end of the sliding column (24), a scratch-resistant coating (28) is provided on the surface of the protective plate (27), a rubber gasket (29) is sleeved on the surface of the sliding column (24), a silicone gasket (210) is sleeved on the surface of the return spring (22) and the sliding column (24), and a rubber gasket (211) is sleeved on the surface of the sliding column (24).

2. The high-strength, impact-resistant, and scratch-resistant sheet metal protective cover for machine tools according to claim 1, characterized in that: There are two partitions (3). The two shock-absorbing components (2) are evenly distributed on the surface with the rear end surface of the main shell (1) symmetrically oriented. There are two fixing plates (21). The two fixing plates (21) are evenly distributed on the inner wall with the rear end surface of the main shell (1) symmetrically oriented. The two fixing plates (21) are located at the ends of the partitions (3) that are far apart from each other.

3. The high-strength, impact-resistant, and scratch-resistant sheet metal protective cover for machine tools according to claim 1, characterized in that: The material of the anti-scratch coating (28) is a ceramic-based coating.

4. The high-strength, impact-resistant, and scratch-resistant sheet metal protective cover for machine tools according to claim 1, characterized in that: The rear end of the slide rail (26) is fixedly connected to the surface of the protective plate (27), and the slide column (24) penetrates the inner wall of the main body shell (1).

5. The high-strength, impact-resistant, and scratch-resistant machine tool outer sheet metal protective cover according to claim 1, characterized in that: The silicone pad (210) is located between the first rubber pad (29) and the second rubber pad (211), and the first rubber pad (29) and the second rubber pad (211) are located between the main body shell (1) and the protective plate (27).

6. The high-strength, impact-resistant, and scratch-resistant sheet metal protective cover for machine tools according to claim 1, characterized in that: An extension side plate (4) is fixedly connected to the rear end of the main body shell (1), and the surface of the extension side plate (4) is provided with mounting holes (5).

7. A high-strength, impact-resistant, and scratch-resistant machine tool outer sheet metal cover according to claim 6, characterized in that: The number of mounting holes (5) is four, and the four mounting holes (5) are evenly distributed on the surface with the center of the rear end surface of the extended side plate (4) symmetrical.