Sliding door lower roller mechanism applied to numerical control machine tool protective cover

Abstract

The utility model discloses a sliding door lower roller mechanism applied to a numerical control machine tool protective cover. The sliding door lower roller mechanism comprises a sliding door body; the at least two roller assemblies are located below the sliding door body; wherein the rolling wheel assembly at least comprises a rolling wheel mounting plate, a rolling wheel bearing and a rolling wheel, the rolling wheel bearing deviates from the center of the rolling wheel mounting plate, and the rolling wheel sleeves the rolling wheel bearing; the at least two scrap scraping pieces are respectively arranged on the outer sides of the roller assemblies; the first guide rail is arranged on the machine tool protective cover, and the rolling wheels roll on the first guide rail. In this way, the convenience of opening and closing of the machine tool sliding door can be improved, and the service life of the machine tool sliding door can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machine tool equipment, and in particular to a sliding door lower roller mechanism applied to a protective cover of a CNC machine tool. Background Art

[0002] Most of today's machine tool sliding doors achieve the function of support and guidance by setting two parallel guide rails on the machine tool protective cover. In the actual production process, the size deviation between the sliding door and the machine tool protective cover is often inconsistent with the theoretical deviation, resulting in the need to repeatedly adjust the sliding door height and guide rail position during the installation of the sliding door, which is quite troublesome. The existing machine tool sliding door guide structure reduces the deviation between the two guide rails by adding springs to the rollers. However, the service life of the springs is short and is not suitable for large machine tool sliding doors. At the same time, since CNC machine tool sliding doors are often large and heavy, the requirements for sliding door installation accuracy are high in order to smoothly and easily open and close the door. In view of this, how to improve the convenience of opening and closing machine tool sliding doors and extend the service life of machine tool sliding doors has become an urgent problem to be solved. Utility Model Content

[0003] The main technical problem solved by the present application is to provide a sliding door lower roller mechanism applied to a protective cover of a CNC machine tool, which can improve the convenience of opening and closing the sliding door of the machine tool and extend the service life of the sliding door of the machine tool.

[0004] In order to solve the above-mentioned technical problems, the present application provides a sliding door lower roller mechanism applied to a CNC machine tool protective cover, comprising: a sliding door body; at least two roller assemblies, located below the sliding door body; wherein the roller assembly at least includes a roller mounting plate, a roller bearing and a roller, the roller bearing is arranged offset from the center of the roller mounting plate, and the roller is sleeved on the roller bearing; at least two scraping members are respectively arranged on the outside of the roller assembly; a first guide rail is arranged on the machine tool protective cover, and the roller rolls on the first guide rail.

[0005] Among them, the sliding door lower roller mechanism applied to the protective cover of the CNC machine tool also includes: a sliding door roller mounting bracket; wherein the sliding door roller mounting bracket is fixedly connected to the sliding door body and is located at the lower edge of the sliding door body.

[0006] Among them, a plurality of first through holes are arranged on the roller mounting plate, and a plurality of matching second through holes are arranged at positions corresponding to the first through holes on the sliding door roller mounting bracket, and the roller assembly also includes: a plurality of first fixing members; wherein, when the first through holes correspond one-to-one with the second through holes, and the plurality of the first fixing members are passed through the first through holes and the second through holes and tightened, the roller mounting plate and the sliding door roller mounting bracket abut against each other.

[0007] Wherein, the roller bearing comprises: a fixing portion fixedly connected to the roller mounting plate; and a protruding portion fixedly connected to the fixing portion; wherein the roller is sleeved on the protruding portion.

[0008] Wherein, the roller assembly also includes: a sealing sheet, which is sleeved on the protrusion and contacts the roller; a sealing member, which is sleeved on the protrusion and contacts the sealing sheet. When the roller is sleeved on the protrusion and the sealing member is tightened on the protrusion, the sealing sheet abuts against the roller, and the sealing member abuts against the sealing sheet.

[0009] Wherein, the scraper component comprises: a scraper strip mounting bracket, which is arranged on the sliding door roller mounting bracket and fixedly connected to the sliding door roller mounting bracket; and a scraper strip, which is fixedly connected to the scraper strip mounting bracket.

[0010] Wherein, a plurality of through holes are further arranged at an upper edge position of the sliding door roller mounting bracket away from the first guide rail.

[0011] Among them, a plurality of matching third through holes are arranged at positions on the sliding door body corresponding to the plurality of through holes, and the sliding door lower roller mechanism applied to the protective cover of the CNC machine tool also includes: a plurality of second fixing parts; wherein, when the through holes correspond one-to-one with the third through holes, the plurality of second fixing parts are passed through the through holes and the plurality of third through holes and tightened, the sliding door roller mounting bracket abuts against the sliding door body.

[0012] Wherein, the sliding door lower roller mechanism applied to the protective cover of a CNC machine tool further includes: a second guide rail, which is arranged on the protective cover of the machine tool and is parallel to the first guide rail.

[0013] Among them, the sliding door lower roller mechanism applied to the protective cover of a CNC machine tool also includes: a slider mounting plate, which is arranged on the sliding door body; a slider, which is fixedly connected to the slider mounting plate, and the slider slides on the second guide rail.

[0014] In the above scheme, the roller bearing is arranged offset from the center of the roller mounting plate, so that when the roller is mounted on the roller bearing, the roller also deviates from the center of the roller mounting plate. Therefore, when installing the roller assembly, the gap between the sliding door body and the first guide rail can be adjusted more easily by rotating the roller mounting plate. In addition, at least two scraping members are respectively arranged on the outside of the roller assembly, so that when the sliding door body rolls under the action of the roller, impurities such as iron filings on the first guide rail can be cleaned, thereby improving the convenience of opening and closing the machine tool sliding door and extending the service life of the machine tool sliding door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a sliding door lower roller mechanism applied to a protective cover of a CNC machine tool of the present application;

[0017] Figure 2 This is a structural schematic diagram of an implementation method of a sliding door roller mounting bracket of the present application;

[0018] Figure 3 It is a structural schematic diagram of an embodiment of the roller assembly of the present application;

[0019] Figure 4 It is an exploded schematic diagram of an embodiment of a roller assembly of the present application;

[0020] Figure 5 It is a front view schematic diagram of an embodiment of installing the roller assembly when the gap between the sliding door body and the first guide rail of the present application is normal;

[0021] Figure 6 It is a front schematic diagram of an implementation method of installing a roller assembly when the gap between the sliding door body and the first guide rail of the present application is too large. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In this document, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, 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 cannot be understood as a limitation on the present application. The term "and / or" is merely a description of an associative relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may indicate three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0024] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The present application provides the following embodiments, and each embodiment is described in detail below.

[0026] Please also read Figure 1-Figure 4 , Figure 1 This is a structural schematic diagram of an embodiment of a sliding door lower roller mechanism applied to a protective cover of a CNC machine tool in the present application. Figure 2 This is a structural schematic diagram of an embodiment of the sliding door roller mounting bracket of the present application. Figure 3 is a structural schematic diagram of an embodiment of the roller assembly of the present application, Figure 4 It is an exploded schematic diagram of an embodiment of the roller assembly of the present application. The sliding door lower roller mechanism 10 applied to the protective cover of a numerical control machine tool comprises: a sliding door body 100, at least two roller assemblies 101, at least two scraping members 102 and a first guide rail 103, wherein at least two roller assemblies 101 are located below the sliding door body 100, the roller assembly 101 at least comprises a roller mounting plate 1010, a roller bearing 1011 and a roller 1012, the roller bearing 1011 is arranged away from the center of the roller mounting plate 1010, and the roller 1012 is sleeved on the roller bearing 1011; at least two scraping members 102 are respectively arranged on the outer side of the roller assembly 101; the first guide rail 103 is arranged on the machine tool protective cover (not shown), and the roller 1012 rolls on the first guide rail 103.

[0027] Specifically, the roller bearing 1011 is arranged to deviate from the center of the roller mounting plate 1010, so that when the roller 1012 is mounted on the roller bearing 1011, the roller 1012 also deviates from the center of the roller mounting plate 1010. Therefore, when installing the roller assembly 101, the gap between the sliding door body 100 and the first guide rail 103 can be adjusted more easily by rotating the roller mounting plate 1010. In addition, the installation is easy and the structure is simple, which greatly reduces the manufacturing cost and the use cost.

[0028] In some implementation scenarios, see Figure 5 , Figure 5 1 is a front view of an embodiment of the roller assembly installation when the gap between the sliding door body and the first guide rail is normal. When the roller assembly 101 is installed, if the gap between the bottom of the sliding door body 100 and the first guide rail 103 is normal, Figure 5 The roller assembly 101 is shown mounted.

[0029] In some implementation scenarios, see Figure 6 , Figure 6 1 is a front view of an embodiment of installing a roller assembly when the gap between the sliding door body and the first guide rail is too large. When installing the roller assembly 101, if the gap between the bottom of the sliding door body 100 and the first guide rail 103 is too large, Figure 5 On the basis of, the roller mounting plate 1010 is rotated 90 degrees clockwise for installation, such as Figure 6 shown.

[0030] In some implementation scenarios, when installing the roller assembly 101, if the gap between the bottom of the sliding door body 100 and the first guide rail 103 is too small, Figure 5 On the basis of the above, rotate the roller mounting plate 1010 90 degrees counterclockwise to install it. Figure 6 The direction of the middle roller 1012 is opposite.

[0031] In other implementation scenarios, the installation angle of the roller mounting plate 1010 can be determined according to the specific situation of the gap between the sliding door body 100 and the first guide rail 103, and the present application does not make specific limitations on this.

[0032] In some implementation scenarios, the roller bearing 1011 is welded to the roller mounting plate 1010 .

[0033] Furthermore, at least two scraper members 102 are respectively arranged on the outside of the roller assembly 101, so that when the sliding door body 100 rolls under the action of the roller 1012, it can clean up impurities such as iron filings on the first guide rail 103, thereby improving the convenience of opening and closing the machine tool sliding door and extending the service life of the machine tool sliding door.

[0034] Optionally, two scraper members 102 are respectively arranged on the outside of two roller assemblies 101, or there are four scraper members 102 in total, with one scraper member 102 being arranged on the outside and the middle of the three roller assemblies 101 respectively. The present application does not impose any specific limitation on the number of scraper members 102 and roller assemblies 101.

[0035] Furthermore, the first guide rail 103 is disposed on the machine tool protective cover. When the sliding door body 100 moves under the action of an external force, the first guide rail 103 plays a guiding and supporting role for the roller 1012 and the sliding door body 100 .

[0036] In some implementation scenarios, the first guide rail 103 adopts a round steel guide rail. The combination of the roller 1012 and the round steel guide rail can effectively reduce friction, so that the external force required when the sliding door body 100 moves is greatly reduced, further improving the convenience of opening and closing the machine tool sliding door.

[0037] In a specific implementation scenario, the first guide rail 103 is fixed to a guide rail mounting plate (not shown) below the sliding door body 100 by means of a circular threaded column.

[0038] In the above scheme, the roller bearing 1011 is set to deviate from the center of the roller mounting plate 1010, so that when the roller 1012 is mounted on the roller bearing 1011, the roller 1012 also deviates from the center of the roller mounting plate 1010, so that when the roller assembly 101 is installed, the gap between the sliding door body 100 and the first guide rail 103 can be more easily adjusted by rotating the roller mounting plate 1010, and at least two scraping members 102 are respectively arranged on the outer side of the roller assembly 101, so that when the sliding door body 100 rolls under the action of the roller 1012, impurities such as iron filings on the first guide rail 103 can be cleaned, thereby improving the convenience of opening and closing the machine tool sliding door and extending the service life of the machine tool sliding door.

[0039] In one embodiment, please continue to refer to Figure 2 The sliding door lower roller mechanism 10 applied to the protective cover of a CNC machine tool also includes a sliding door roller mounting bracket 104, wherein the sliding door roller mounting bracket 104 is fixedly connected to the sliding door body 100 and is located at the lower edge of the sliding door body 100.

[0040] Specifically, the roller assembly 101 is mounted on the sliding door roller mounting bracket 104 to ensure the stability of the roller assembly 101 when the sliding door body 100 moves.

[0041] In one implementation scenario, a plurality of first through holes 1016 are provided on the roller mounting plate 1010, and a plurality of matching second through holes (not shown) are provided at positions corresponding to the first through holes 1016 on the sliding door roller mounting bracket 104, and the roller assembly 101 also includes a plurality of first fixing members 1013, wherein when the first through holes 1016 correspond one-to-one with the second through holes, the plurality of first fixing members 1013 are passed through the first through holes 1016 and the second through holes and tightened, the roller mounting plate 1010 and the sliding door roller mounting bracket 104 abut against each other.

[0042] Specifically, when the first through holes 1016 correspond to the second through holes one by one, and the multiple first fixing members 1013 are inserted into the first through holes 1016 and the second through holes and tightened, the roller mounting plate 1010 and the sliding door roller mounting bracket 104 abut against each other, thereby reducing the difficulty of assembling the roller mounting plate 1010 and increasing the manufacturing tolerance of related parts.

[0043] In a specific implementation scenario, the plurality of first fixing members 1013 are locking screws of the roller mounting plate 1010 .

[0044] In a specific implementation scenario, a plurality of first through holes 1016 are disposed around an edge of the roller mounting plate 1010 .

[0045] In an implementation scenario, please continue to refer to Figure 4 The roller bearing 1011 includes a fixing portion 1017 and a protruding portion 1018 , wherein the fixing portion 1017 is fixedly connected to the roller mounting plate 1010 , the protruding portion 1018 is fixedly connected to the fixing portion 1017 , and the roller 1012 is sleeved on the protruding portion 1018 .

[0046] Specifically, the fixing portion 1017 of the roller bearing 1011 is fixedly connected to the roller mounting plate 1010 , and the protruding portion 1018 of the roller bearing 1011 is fixedly connected to the fixing portion 1017 , so as to improve the overall stability of the roller bearing 1011 .

[0047] In a specific implementation scenario, the size of the protrusion 1018 of the roller bearing 1011 is smaller than the size of the central hollow portion of the roller 1012 .

[0048] In an implementation scenario, please refer to Figure 3 and Figure 4The roller assembly 101 also includes a sealing sheet 1014 and a sealing member 1015, wherein the sealing sheet 1014 is sleeved on the protrusion 1018 and contacts the roller 1012, and the sealing member 1015 is sleeved on the protrusion 1018 and contacts the sealing sheet 1014. When the roller 1012 is sleeved on the protrusion 1018 and the sealing member 1015 is tightened on the protrusion 1018, the sealing sheet 1014 abuts against the roller 1012, and the sealing member 1015 abuts against the sealing sheet 1014, thereby improving the overall stability of the roller assembly 101.

[0049] In a specific implementation scenario, the sealing sheet 1014 is a gasket, and the sealing member 1015 is a locking nut of the roller 1012 .

[0050] In a specific implementation scenario, the size of the central hollow portion of the sealing sheet 1014 and the sealing member 1015 is greater than the size of the protruding portion 1018 of the roller bearing 1011 .

[0051] In an implementation scenario, please continue to refer to Figure 2 The scraper member 102 includes a scraper strip mounting bracket 1020 and a scraper strip 1021, wherein the scraper strip mounting bracket 1020 is arranged on the sliding door roller mounting bracket 104 and is fixedly connected to the sliding door roller mounting bracket 104; the scraper strip 1021 is fixedly connected to the scraper strip mounting bracket 1020.

[0052] Specifically, the scraper strip 1021 and the scraper strip mounting bracket 1020 are installed together on the outside of the two rollers 1012. When the sliding door body 100 moves under the action of external force, the scraper strip 1021 can clean impurities such as iron filings on the first guide rail 103, thereby effectively reducing the impact of impurities on the rolling of the rollers 1012.

[0053] In a specific implementation scenario, the number of the scraper elements 102 and the number of the roller assemblies 101 are both two groups, and the installation positions of the two groups of scraper elements 102 are respectively outside the installation positions of the two groups of roller assemblies 101.

[0054] In an implementation scenario, please continue to refer to Figure 2 A plurality of through holes 1040 are also provided at an upper edge of the sliding door roller mounting bracket 104 away from the first guide rail 103 .

[0055] In a specific implementation scenario, the plurality of via holes 1040 are waist-shaped holes.

[0056] In one implementation scenario, a plurality of matching third through holes (not shown) are provided at positions corresponding to the plurality of through holes 1040 on the sliding door body 100. The sliding door lower roller mechanism 10 applied to the protective cover of a CNC machine tool also includes a plurality of second fixing members (not shown). When the through holes 1040 correspond one-to-one to the third through holes, the plurality of second fixing members are passed through the through holes 1040 and the plurality of third through holes and tightened, the sliding door roller mounting bracket 104 abuts against the sliding door body 100.

[0057] Specifically, when the through holes 1040 correspond to the third through holes one by one, and multiple second fixing members are passed through the through holes 1040 and multiple third through holes and tightened, the sliding door roller mounting bracket 104 abuts against the sliding door body 100, thereby improving the overall stability between the sliding door roller mounting bracket 104 and the sliding door body 100. It is also easy to install, has a simple structure, and is not easily damaged during use, thereby reducing the cost of use.

[0058] In a specific implementation scenario, the plurality of second fixing members are locking screws of the sliding door roller mounting bracket 104 .

[0059] In an implementation scenario, please continue to refer to Figure 1 The sliding door lower roller mechanism 10 applied to the CNC machine tool protective cover also includes a second guide rail 105, which is arranged on the machine tool protective cover and is parallel to the first guide rail 103.

[0060] Specifically, when the sliding door body 100 moves downward under the action of an external force, the second guide rail 105 is used to provide support for the upper end of the sliding door body 100 .

[0061] In a specific implementation scenario, the second guide rail 105 is a circular support rail.

[0062] In one implementation scenario, the sliding door lower roller mechanism 10 applied to the protective cover of a CNC machine tool also includes a slider mounting plate 106 and a slider 107, wherein the slider mounting plate 106 is arranged on the sliding door body 100, the slider 107 is fixedly connected to the slider mounting plate 106, and the slider 107 slides on the second guide rail 105.

[0063] Specifically, the slider is installed on the slider mounting plate 106 to provide a guide for the sliding door body 100 .

[0064] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sliding door lower roller mechanism applied to a protective cover of a CNC machine tool, characterized in that: include: Sliding door body; At least two roller assemblies are located below the sliding door body; wherein the roller assembly at least comprises a roller mounting plate, a roller bearing and a roller, the roller bearing is arranged away from the center of the roller mounting plate, and the roller is sleeved on the roller bearing; At least two scraping members are respectively arranged on the outer sides of the roller assembly; The first guide rail is arranged on the machine tool protection cover, and the roller rolls on the first guide rail.

2. The lower roller mechanism for sliding door applied to the protective cover of CNC machine tools according to claim 1 is characterized in that: Also includes: Sliding door roller mounting bracket; wherein the sliding door roller mounting bracket is fixedly connected to the sliding door body and is located at the lower edge of the sliding door body.

3. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 2 is characterized in that: The roller mounting plate is provided with a plurality of first through holes, and the sliding door roller mounting bracket is provided with a plurality of matching second through holes at positions corresponding to the first through holes, and the roller assembly further includes: A plurality of first fixing members; wherein, when the first through holes correspond to the second through holes one by one, and the plurality of the first fixing members are inserted into the first through holes and the second through holes and tightened, the roller mounting plate and the sliding door roller mounting bracket abut against each other.

4. The lower roller mechanism for sliding door applied to the protective cover of CNC machine tools according to claim 2 is characterized in that: The roller bearing comprises: A fixing portion, fixedly connected to the roller mounting plate; The protruding portion is fixedly connected to the fixing portion; wherein the roller is sleeved on the protruding portion.

5. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 4 is characterized in that: The roller assembly also includes: A sealing sheet, sleeved on the protruding portion and in contact with the roller; The sealing member is sleeved on the protruding portion and contacts the sealing sheet. When the roller is sleeved on the protruding portion and the sealing member is tightened on the protruding portion, the sealing sheet abuts against the roller, and the sealing member abuts against the sealing sheet.

6. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 2 is characterized in that: The scraper comprises: A scraper strip mounting bracket is disposed on the sliding door roller mounting bracket and is fixedly connected to the sliding door roller mounting bracket; A scraping strip is fixedly connected to the scraping strip mounting bracket.

7. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 2 is characterized in that: The sliding door roller mounting bracket is also provided with a plurality of through holes at an upper edge position away from the first guide rail.

8. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 7 is characterized in that: A plurality of matching third through holes are arranged on the sliding door body at positions corresponding to the plurality of through holes. The sliding door lower roller mechanism applied to the protective cover of a CNC machine tool also includes: A plurality of second fixing members; wherein, when the through holes correspond to the third through holes one by one, and the plurality of the second fixing members are passed through the through holes and the plurality of the third through holes and tightened, the sliding door roller mounting bracket abuts against the sliding door body.

9. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 1, characterized in that: Also includes: The second guide rail is arranged on the machine tool protection cover and is parallel to the first guide rail.

10. The lower roller mechanism of the sliding door applied to the protective cover of a CNC machine tool according to claim 9, characterized in that: Also includes: A slider mounting plate is arranged on the sliding door body; A slider is fixedly connected to the slider mounting plate, and the slider slides on the second guide rail.

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