A method for scraping and grinding the surface of the saddle slide of a machining center

Abstract

A method for scraping and grinding the surface of a saddle slider of a machining center includes the following steps: S1, installing a wire reel in front of each wire rail on the base, and connecting the wire of the wire reel to the slider; S2, placing the saddle on the slider, and then moving the saddle backward, recording the sliders that move backward with the saddle as group a, and the sliders that move backward with the saddle but detach from the saddle midway as group b; S3, lifting the saddle from the slider and turning it over, and scraping and grinding the working surface of the saddle corresponding to the positions of the sliders in group a and group b; S4, repeating steps S2 and S3 until all sliders are group a; S5, applying paint on the upper end surface of the slider, and then pushing the slider to make the slider slide relative to the working surface, observing the sliding track of the slider paint remaining on the working surface, if it is uniform, the scraping and grinding is completed. The above scraping and grinding method can ensure that the working surface of the saddle and all sliders are accurately fitted, and the scraping and grinding efficiency is high and the practicality is good.

Description

Technical Field

[0001] The invention relates to the technical field of scraping methods for precision equipment, and in particular to a scraping method for the surface of a saddle slide block of a machining center. Background Art

[0002] In the assembly of machining centers, in order to improve the contact rate between the main components, scraping and grinding are usually performed, including between the column and the base, the bearing seat and the mother body, etc., but these components are basically fixed and have a large contact surface, which is easy to load and unload. Scraping and grinding between the linear rail slider and the saddle is more difficult.

[0003] Specifically, when the slider and saddle on the linear rail are locked with screws, if the contact surface between each slider and the saddle is different, the force on each slider will be different, resulting in different wear of the steel ball or steel column in the slider relative to the linear rail, which will eventually affect the accuracy of the machine tool. This accuracy is not obvious in the first few years of the machine tool, but after the machine tool has been running for a few years, the wear of the steel ball or steel column in the slider will be different, which will seriously affect the accuracy of the machine tool.

[0004] In routine operation, the linear rail slider and the saddle are scraped and ground. Currently, most domestic manufacturers use a cast iron flat ruler to grind the entire working surface where the saddle and the slider are in contact, to ensure that the working surface of the saddle has good flatness and achieve stable contact between the working surface of the saddle and the linear rail slider.

[0005] Considering that the same base is often equipped with multiple linear rails, and the span of the linear rails is often large, it is difficult to ensure accuracy and rigidity with such a large span even if the corresponding grinding tooling is designed. In addition, the processing accuracy of the linear rails and the sliders themselves is inconsistent. Therefore, it is difficult to achieve a close fit between the saddle working surface and all linear rail sliders using conventional scraping methods. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that the same base is often equipped with multiple linear rails, and the span of the linear rails is often large. With such a large span, it is difficult to ensure accuracy and rigidity even if the corresponding grinding tooling is designed. In addition, the processing accuracy of the linear rails and the sliders themselves is inconsistent. Therefore, it is difficult to achieve a close fit between the saddle working surface and all the linear rail sliders by conventional scraping methods.

[0007] In order to solve the above problems, the present invention provides a method for scraping the surface of a saddle slider of a machining center, comprising the following steps:

[0008] S1. A plurality of wire rails are installed on the base and are arranged in a front-to-back direction and spaced from each other. A slidable slider is arranged on the wire rails. A wire reel is installed in front of each wire rail on the base. The wire of the wire reel is connected to the slider of the corresponding wire rail so that the slider is pulled forward by the wire and moves to the front end of the wire rail in a unified manner.

[0009] S2. Place the saddle on the slider and make it contact with all the sliders. The contact surface between the saddle and the slider is the working surface. Then move the saddle backward. The sliders that move backward with the saddle are recorded as group a. The sliders that move backward with the saddle but detach from the saddle in the middle and are pulled back to the front end of the rail by the pull wire are group b. The group b is divided into slider b1, slider b2, slider b3, ... slider bn according to the order of the sliders detaching from the saddle.

[0010] S3, lift the saddle from the slider and turn it over, scrape and grind the working surface of the saddle corresponding to the positions of the sliders b2, b3, ..., bn of the sliders of group a and group b, and the scraping depth corresponding to the positions of the sliders of group a is greater than the scraping depth corresponding to the positions of the sliders of group b;

[0011] S4, repeat step S2 and step S3 until all sliders are in group a;

[0012] S5. Lift the saddle from the slider, apply paint on the upper end surface of the slider, and then re-install the saddle on the slider. Then push the slider to make the slider slide relative to the working surface. Then lift the saddle from the slider again and turn it over. Observe whether the sliding track of the paint of the slider on the working surface is uniform. If it is not uniform, scrape the area with heavier paint tracks on the working surface, and then repeat step S4. If it is uniform, the scraping is completed.

[0013] The above scheme applies a forward pulling force to the slider on the line rail through the reel in front of the line rail. When the saddle is moved backward in step S2, the slider that fits tightly with the saddle will move backward with the saddle, and the slider that fits loosely with the saddle will be separated from the saddle and pulled back to the front end of the line rail by the wire, thereby helping the operator to identify the degree of fit between the working surface of the saddle and different sliders, which is convenient for the subsequent control of the scraping depth, until all sliders in step S4 are group a, which means that the working surface and all sliders have the same degree of fit, and then step S5 is used to detect whether the contact surface between a single slider and the working surface is uniform. If it is not uniform, the area with heavier paint tracks on the working surface is scraped, and then step S4 is repeated; if it is uniform, it means that not only the working surface and all sliders have the same degree of fit, but also the working surface and a single slider are in uniform surface contact, and the fit is good, and the scraping is completed at this time. Compared with the prior art, the above scraping method can ensure that the working surface of the saddle and all sliders are accurately fitted, and the scraping efficiency is high and the practicality is good.

[0014] In an improved scheme, in step S2, when scraping the working surface of the saddle corresponding to the positions of the b2 slider, b3 slider ... bn slider of group b, the scraping depth gradually increases according to the positions of the b2 slider, b3 slider ... bn slider. Since the order in which the sliders detach from the saddle corresponds to the tightness of the slider and the saddle, it also indicates the scraping depth of the working surface of the saddle corresponding to the positions of the b2 slider, b3 slider ... bn slider of group b, thereby improving the scraping efficiency.

[0015] In an improved solution, in step S5, the sliding distance of the slider relative to the working surface is at least 1 / 2 of the slider length, thereby ensuring that the sliding distance of the slider relative to the working surface is long enough and the slider can leave enough paint tracks on the working surface.

[0016] In an improved solution, in both step S3 and step S5, the working surface is scraped and ground by a cast iron ruler.

[0017] In an improved solution, the scraping direction of the cast iron ruler on the working surface is the front-to-back direction, which is consistent with the moving direction of the slider, which is beneficial to improving the scraping effect.

[0018] In an improved solution, the saddle and the slider have corresponding assembly holes. In step S2, after the saddle is placed on the slider and in contact with all the sliders, the assembly holes of the saddle and the slider with tighter contact are selected to insert screws, and then the saddle is moved backward, so that the saddle and the slider with tighter contact are temporarily fixed by screws, avoiding the problem of the saddle accidentally falling when moving backward.

[0019] In an improved solution, the cable is wound up by a winding spring inside the cable reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the coordination of the saddle, slider and linear rail corresponding to a method for scraping the surface of the saddle slider of a machining center.

[0021] Description of reference numerals:

[0022] 1. Base; 2. Line rail; 3. Slider; 4. Saddle; 5. Winder. DETAILED DESCRIPTION

[0023] It should be understood by those skilled in the art that the following embodiments are only used to explain the technical principles of the embodiments of the present application and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art may adjust them as needed to adapt to specific application scenarios.

[0024] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0025] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: Please refer to Figure 1 The embodiment of the present invention provides a method for scraping the surface of a saddle slider of a machining center, comprising the following steps:

[0028] S1. A plurality of line rails 2 are installed on the base 1 and are arranged in the front-to-back direction and spaced from each other. A slidable slider 3 is arranged on the line rail 2. A wire reel 5 is installed in front of each line rail 2 on the base 1. By connecting the wire of the wire reel 5 to the slider 3 of the corresponding line rail 2, the slider 3 is pulled forward by the wire and moves to the front end of the line rail 2 in a unified manner.

[0029] S2, place the saddle 4 on the sliders 3 and make it contact with all the sliders 3, the contact surface between the saddle 4 and the sliders 3 is the working surface, then move the saddle 4 backward, record the sliders 3 that move backward with the saddle 4 as group a, and the sliders 3 that move backward with the saddle 4 but detach from the saddle 4 halfway and are pulled back to the front end of the linear rail 2 by the pull wire as group b, and group b is divided into slider b1, slider b2, slider b3 ... slider bn according to the order of the sliders 3 detaching from the saddle 4;

[0030] S3, lift the saddle 4 from the slider 3 and turn it over, scrape and grind the working surface of the saddle 4 corresponding to the slider 3 of group a and the sliders b2, b3, ..., bn of group b, and the scraping depth corresponding to the slider 3 of group a is greater than the scraping depth corresponding to the slider 3 of group b;

[0031] S4, repeat step S2 and step S3 until all sliders 3 are in group a;

[0032] S5. Lift the saddle 4 from the slider 3, apply paint on the upper end surface of the slider 3, and then re-install the saddle 4 on the slider 3. Then push the slider 3 to make the slider 3 slide relative to the working surface. Then lift the saddle 4 from the slider 3 again and turn it over. Observe whether the sliding track of the paint of the slider 3 on the working surface is uniform. If it is not uniform, scrape the area with heavier paint tracks on the working surface, and then repeat step S4. If it is uniform, the scraping is completed.

[0033] The above scheme applies a forward pulling force to the slider 3 on the linear rail 2 through the winder 5 in front of the linear rail 2. When the saddle 4 is moved backward in step S2, the slider 3 that is tightly fitted with the saddle 4 will move backward with the saddle 4, and the slider 3 that is loosely fitted with the saddle 4 will be detached from the saddle 4 and pulled back to the front end of the linear rail 2 by the pulling wire, thereby helping the operator to identify the fit tightness between the working surface of the saddle 4 and different sliders 3, which is convenient for the subsequent scraping depth control. Until step S4, all sliders 3 are group a, which means that the fit tightness of the working surface and all sliders 3 is consistent, and then step S5 is used to detect whether the contact surface between a single slider 3 and the working surface is uniform. If it is uneven, the area with heavier paint tracks on the working surface is scraped, and then step S4 is repeated; if it is uniform, it means that not only the fit tightness of the working surface and all sliders 3 is consistent, but also the working surface and a single slider 3 are in uniform surface contact, and the fit is good. At this time, the scraping is completed. Compared with the prior art, the scraping method can ensure that the working surface of the saddle 4 and all the sliders 3 are accurately fitted, and the scraping efficiency is high and the practicability is good.

[0034] It should be noted that in both step S3 and step S5, the working surface is scraped by a cast iron ruler. More specifically, the scraping direction of the working surface by the cast iron ruler is the front-to-back direction, which is consistent with the moving direction of the slider 3, which is conducive to improving the scraping effect.

[0035] Example 2: Please refer to Figure 1 Embodiment 2 of the present invention provides a method for scraping the surface of a saddle slider of a machining center, comprising the following steps:

[0036] S1. A plurality of line rails 2 are installed on the base 1 and are arranged in the front-to-back direction and spaced from each other. A slidable slider 3 is arranged on the line rail 2. A wire reel 5 is installed in front of each line rail 2 on the base 1. By connecting the wire of the wire reel 5 to the slider 3 of the corresponding line rail 2, the slider 3 is pulled forward by the wire and moves to the front end of the line rail 2 in a unified manner.

[0037] S2, place the saddle 4 on the sliders 3 and make it contact with all the sliders 3, the contact surface between the saddle 4 and the sliders 3 is the working surface, then move the saddle 4 backward, record the sliders 3 that move backward with the saddle 4 as group a, and the sliders 3 that move backward with the saddle 4 but detach from the saddle 4 halfway and are pulled back to the front end of the linear rail 2 by the pull wire as group b, and group b is divided into slider b1, slider b2, slider b3 ... slider bn according to the order of the sliders 3 detaching from the saddle 4;

[0038] S3, lift the saddle 4 from the slider 3 and turn it over, scrape and grind the working surface of the saddle 4 corresponding to the positions of the sliders 3 of group a and the sliders b2, b3, ..., bn of group b, and the scraping depth of the working surface of the saddle 4 corresponding to the positions of the sliders 3 of group a is greater than the scraping depth corresponding to the positions of the sliders 3 of group b, and when the working surface of the saddle 4 is scraped and grinded corresponding to the positions of the sliders b2, b3, ..., bn of group b, the scraping depth gradually increases according to the positions of the sliders b2, b3, ..., bn;

[0039] S4, repeat step S2 and step S3 until all sliders 3 are in group a;

[0040] S5. Lift the saddle 4 from the slider 3, apply paint on the upper end surface of the slider 3, and then re-install the saddle 4 on the slider 3. Then push the slider 3 to make the slider 3 slide relative to the working surface. Then lift the saddle 4 from the slider 3 again and turn it over. Observe whether the sliding track of the paint of the slider 3 on the working surface is uniform. If it is not uniform, scrape the area with heavier paint tracks on the working surface, and then repeat step S4. If it is uniform, the scraping is completed.

[0041] The wire reel 5 is preferably a structure that winds up the wire through a coil spring, so that as the slider 3 moves farther backward, the tension of the coil spring on the wire becomes greater, and the slider 3 that is separated from the saddle 4 later fits more tightly with the saddle 4, so the scraping depth required later is deeper. Therefore, in step b2, the order of the slider 3 separating from the saddle 4 early and late corresponds to the tightness of the slider 3 and the saddle 4, which indicates the scraping depth of the working surface of the saddle 4 corresponding to the positions of the sliders b2, b3, ..., bn of group b, thereby improving the scraping efficiency.

[0042] Example 3: Please refer to Figure 1 Embodiment 3 of the present invention provides a method for scraping the surface of a saddle slider of a machining center, comprising the following steps:

[0043] S1. A plurality of line rails 2 are installed on the base 1 and are arranged in the front-to-back direction and spaced from each other. A slidable slider 3 is arranged on the line rail 2. A wire reel 5 is installed in front of each line rail 2 on the base 1. By connecting the wire of the wire reel 5 to the slider 3 of the corresponding line rail 2, the slider 3 is pulled forward by the wire and moves to the front end of the line rail 2 in a unified manner.

[0044] S2, place the saddle 4 on the slider 3 and make it contact with all the sliders 3, the contact surface between the saddle 4 and the slider 3 is the working surface, the saddle 4 and the slider 3 have corresponding assembly holes, select the assembly holes of the saddle 4 and the slider 3 with tighter contact to insert screws, so that the saddle 4 and the slider 3 with tighter contact are temporarily fixed by screws, and the problem of accidental falling of the saddle 4 when moving backward is avoided; then move the saddle 4 backward, record the sliders 3 that move backward with the saddle 4 as group a, and the sliders 3 that move backward with the saddle 4 but detach from the saddle 4 in the middle and are pulled back to the front end of the linear rail 2 by the pull wire as group b, and group b is divided into b1 slider, b2 slider, b3 slider...bn slider according to the order of the slider 3 detaching from the saddle 4; of course, after step S2 is completed, remove the screws from the assembly holes, and then enter step S3;

[0045] S3, lift the saddle 4 from the slider 3 and turn it over, scrape and grind the working surface of the saddle 4 corresponding to the slider 3 of group a and the sliders b2, b3, ..., bn of group b, and the scraping depth corresponding to the slider 3 of group a is greater than the scraping depth corresponding to the slider 3 of group b;

[0046] S4, repeat step S2 and step S3 until all sliders 3 are in group a;

[0047] S5. Lift the saddle 4 from the slider 3, apply paint on the upper end surface of the slider 3, and then re-install the saddle 4 on the slider 3. Then push the slider 3 to make the slider 3 slide relative to the working surface, and the relative sliding distance of the slider 3 relative to the working surface is at least 1 / 2 of the length of the slider 3, so as to ensure that the sliding distance of the slider 3 relative to the working surface is long enough, and the slider 3 can leave enough paint tracks on the working surface; then lift the saddle 4 from the slider 3 again and turn it over to observe whether the sliding track of the paint of the slider 3 on the working surface is uniform. If it is not uniform, scrape the area with heavier paint tracks on the working surface, and then repeat step S4; if it is uniform, the scraping is completed.

[0048] It should be noted that, in the description of the present application, the terms "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application; all directional indications (such as up, down, left, right, front, back, inside, and outside) are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for scraping the surface of a saddle slider of a machining center, characterized in that: The steps include: S1. A plurality of wire rails (2) are installed on a base (1) and are arranged in a front-to-back direction and spaced apart from each other. A slidable slider (3) is arranged on the wire rail (2). A wire reel (5) is installed in front of each wire rail (2) on the base (1). By connecting the wire of the wire reel (5) to the slider (3) on the corresponding wire rail (2), the wire reel (5) is wound up by a winding spring inside the wire reel (5), so that the slider (3) is pulled forward by the wire and moves to the front end of the wire rail (2) in a unified manner. S2, placing the saddle (4) on the slider (3) and making it contact with all the sliders (3), the contact surface between the saddle (4) and the slider (3) being the working surface, then moving the saddle (4) backward, recording the sliders (3) that move backward with the saddle (4) as group a, and the sliders (3) that move backward with the saddle (4) but detach from the saddle (4) in the middle and are pulled back to the front end of the linear rail (2) by the pull wire as group b, and group b is divided into slider b1, slider b2, slider b3 ... slider bn according to the order in which the sliders (3) detach from the saddle (4); S3, lifting the saddle (4) from the slider (3) and turning it over, scraping and grinding the working surface of the saddle (4) at positions corresponding to the sliders (3) of group a and the sliders b2, b3, ..., bn of group b, and the scraping depth at the position corresponding to the sliders (3) of group a is greater than the scraping depth at the position corresponding to the sliders (3) of group b; S4, repeating step S2 and step S3 until all sliders (3) are group a; S5, lift the saddle (4) from the slider (3), apply paint on the upper end surface of the slider (3), then re-install the saddle (4) on the slider (3), then push the slider (3) so that the slider (3) slides relative to the working surface, then lift the saddle (4) from the slider (3) again and turn it over, and observe whether the sliding track of the paint of the slider (3) remaining on the working surface is uniform. If it is not uniform, scrape the area on the working surface where the paint track is heavier, and then repeat step S4; if it is uniform, the scraping is completed.

2. The method for scraping the surface of a saddle slide of a machining center according to claim 1, characterized in that: In step S2, when the working surface of the saddle (4) is scraped corresponding to the positions of the b2 slider, b3 slider, ... bn slider of group b, the scraping depth is gradually increased according to the positions of the b2 slider, b3 slider, ... bn slider.

3. The method for scraping the surface of a saddle slide of a machining center according to claim 1, characterized in that: In step S5, the sliding block (3) is pushed to slide relative to the working surface by a distance that is at least 1 / 2 of the length of the sliding block (3).

4. The method for scraping the surface of a saddle slide of a machining center according to any one of claims 1 to 3, characterized in that: In both step S3 and step S5, the working surface is scraped and ground by a cast iron ruler.

5. The method for scraping the surface of a saddle slide of a machining center according to claim 4, characterized in that: The scraping direction of the cast iron straight edge on the working surface is the front-to-back direction.

6. The method for scraping the surface of a saddle slide of a machining center according to claim 1, characterized in that: The saddle (4) and the slider (3) have corresponding assembly holes. In step S2, after the saddle (4) is placed on the slider (3) and in contact with all the sliders (3), a screw is inserted into the assembly hole of the saddle (4) and the slider (3) that is in tighter contact, and the saddle (4) is then moved backward.

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