Lightweight machine tool sliding door structure

Abstract

The utility model discloses a lightweight machine tool sliding door structure which comprises a left sliding door and a right sliding door, the main bodies of the left sliding door and the right sliding door are respectively made of metal plates with the thickness of 1.5 mm, the upper sides of the left sliding door and the right sliding door are respectively provided with three upper rollers, the lower sides of the left sliding door and the right sliding door are respectively provided with two lower rollers, and an upper guide rail and a lower guide rail are fixed on a front protective plate of a machine tool. The upper guide rail is provided with an upper guide rail groove, the three upper rollers are arranged in the upper guide rail groove respectively, the center lines of the three upper rollers are vertically arranged respectively, orthographic projections of the three upper rollers on the horizontal plane are arranged in a triangular mode, the wheel faces of two upper rollers press the front groove wall of the upper guide rail groove, and the wheel face of the other upper roller presses the rear groove wall of the upper guide rail groove. The center lines of the two lower idler wheels are horizontally arranged respectively, idler wheel grooves are formed in the wheel faces of the two lower idler wheels respectively, and the idler wheel grooves are attached to the top of the lower guide rail. The sliding door structure is light in weight, simple and reliable in structure, low in cost and stable in operation, the machining and assembling time of the sliding door can be effectively shortened, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool accessories technology, specifically relating to a lightweight machine tool sliding door structure. Background Technology

[0002] Machine tool sliding doors serve as the passageway for workpieces to and from the processing area, and are used frequently, requiring excellent waterproofing, sealing, and sufficient structural strength. Existing machine tool sliding doors are relatively thick, heavy, and costly, with many assembly parts and complex roller structures, making installation time-consuming and labor-intensive.

[0003] For example, CN207358709U discloses an anti-jump sliding door for CNC machine tools. One end of its movable rod is hinged to the sliding door, and the other end is connected to a tension spring. A first roller and a second roller are spaced a certain distance apart to form a guide rail channel between them. Under the restoring force of the tension spring, the first and second rollers can be tightly engaged with the guide rail between them, ensuring that the sliding door will not derail during movement, making the sliding door run more smoothly and steadily. This sliding door achieves translation and anti-jumping through a complex structure including roller assemblies, tension springs, movable rods, and scissor frames. However, it also suffers from problems such as heavy weight, high cost, and low installation efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lightweight machine tool sliding door structure that is simple in structure, reliable, low in cost, and stable in operation, in order to overcome the shortcomings of the existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a lightweight machine tool sliding door structure, including a left sliding door and a right sliding door. The main bodies of the left sliding door and the right sliding door are respectively made of sheet metal with a thickness of 1.5mm. Three upper rollers are respectively installed on the upper side of the left sliding door and the right sliding door, and two lower rollers are respectively installed on the lower side of the left sliding door and the right sliding door. An upper guide rail and a lower guide rail are fixed on the front protective plate of the machine tool. An upper guide rail groove is provided on the upper guide rail, and the cross-section of the upper guide rail groove is U-shaped with the opening facing upward. The three upper rollers are respectively disposed in the upper guide rail groove, and the center lines of the three upper rollers are respectively set vertically. The orthographic projection of the center lines of the three upper rollers on the horizontal plane forms a triangular layout. The wheel surfaces of two of the upper rollers press against the front groove wall of the upper guide rail groove, and the wheel surface of the other upper roller presses against the rear groove wall of the upper guide rail groove. The center lines of the two lower rollers are respectively set horizontally, and the wheel surfaces of the two lower rollers are respectively equipped with roller grooves, and the roller grooves fit against the top of the lower guide rail.

[0006] The main bodies of the left and right sliding doors of this utility model are made of sheet metal with a thickness of 1.5mm, resulting in lower cost and significantly reduced weight. The overall structure is simple and reliable, effectively reducing processing and assembly time and improving installation efficiency. Three upper rollers and two lower rollers are installed on the upper and lower sides of the left and right sliding doors, respectively. The two lower rollers primarily provide support. The centerlines of the three upper rollers project onto the horizontal plane in a triangular arrangement, forming a two-front-one-back distribution. This arrangement adjusts the front-rear angle of the left and right sliding doors, ensuring smooth closure, reducing scrap due to manufacturing errors, and ensuring that the three upper rollers remain against the front and rear walls of the upper guide rail groove during closing, minimizing back-and-forth swaying and ensuring stable operation.

[0007] Preferably, the roller groove has a V-shaped cross-section, and the top of the lower guide rail is provided with a support platform with an inverted V-shaped cross-section. The roller groove fits into the support platform to increase the axial contact area between the lower roller and the lower guide rail, further reducing the back-and-forth swaying of the left and right sliding doors during operation and preventing derailment.

[0008] Preferably, the left sliding door includes a left vertical panel and a left horizontal panel, with the left horizontal panel vertically connected to the top of the left vertical panel. The right sliding door includes a right vertical panel and a right horizontal panel, with the right horizontal panel vertically connected to the top of the right vertical panel. The left and right horizontal panels face rearward, and several reinforcing ribs are provided on the back surfaces of the left and right vertical panels and the bottom surfaces of the left and right horizontal panels. These reinforcing ribs increase the rigidity of the left and right sliding doors and provide resistance to bending and torsion, facilitating the installation of other sliding door accessories.

[0009] As a further preferred embodiment, a first side plate is connected to the right side of the left vertical plate, a second side plate is connected to the right side of the left horizontal plate, and a first rear folding plate is connected to the rear end of the second side plate. A third side plate is connected to the left side of the right vertical plate, a fourth side plate is connected to the left side of the right horizontal plate, and a second rear folding plate is connected to the rear end of the third side plate. When the left and right sliding doors are closed, the first and third side plates intersect to form a first labyrinth sealing structure, the second and fourth side plates intersect to form a second labyrinth sealing structure, and the first and second rear folding plates intersect to form a third labyrinth sealing structure. The first, second, and third labyrinth sealing structures prevent the flow of cutting fluid within the processing area, improving the waterproofness and sealing performance of the sliding doors.

[0010] Preferably, the bottom of the left sliding door and the right sliding door are each fixed with a lower baffle with an L-shaped cross-section, and the bottom of the lower guide rail is provided with a lower folding plate with an L-shaped cross-section. The horizontal portions of the lower baffle and the lower folding plate are respectively arranged facing forward, with the horizontal portion of the lower baffle located above the horizontal portion of the lower folding plate. The horizontal portions of the lower baffle and the lower folding plate, together with the rear side of the front protective plate, form a fourth labyrinth sealing structure. The fourth labyrinth sealing structure can prevent iron filings from splashing into the lower roller during processing, reducing the wear and jamming risk of the lower roller. At the same time, the lower baffle can also prevent the sliding door from moving upward when it derails, ensuring safety.

[0011] Compared with existing technologies, this utility model has the following advantages: The main bodies of the left and right sliding doors of the lightweight machine tool sliding door structure of this utility model are made of sheet metal with a thickness of 1.5mm, which reduces costs and significantly reduces the weight of the sliding door. Furthermore, the overall structure of the sliding door is simple and reliable, effectively reducing processing and assembly time and improving installation efficiency. The upper and lower sides of the left and right sliding doors of this utility model are respectively equipped with three upper rollers and two lower rollers. The two lower rollers mainly serve a supporting function, while the three upper rollers can adjust the front-to-back angle of the left and right sliding doors, ensuring smooth closure, reducing scrap due to manufacturing errors, and preventing back-to-back swaying during closing, thus ensuring stable operation of the sliding doors. Attached Figure Description

[0012] Figure 1 This is a front view of the left and right sliding doors when they are closed in the embodiment;

[0013] Figure 2 This is a rear view of the left and right sliding doors when they are closed in the embodiment;

[0014] Figure 3 This is a front view of the left sliding door in the embodiment;

[0015] Figure 4 This is a rear view of the left sliding door in the embodiment;

[0016] Figure 5 This is a front view of the right sliding door in the embodiment;

[0017] Figure 6 This is a rear view of the right sliding door in the embodiment;

[0018] Figure 7 This is a top view schematic diagram showing the layout of the three upper rollers installed on the upper side of the right sliding door in the embodiment;

[0019] Figure 8 This is a side sectional view showing the effect of installing a single upper roller in the embodiment;

[0020] Figure 9 This is a side sectional view showing the effect of installing a single lower roller in the embodiment;

[0021] The specific reference numerals in the figure are as follows:

[0022] 1-Left sliding door, 11-Left upright plate, 12-Left horizontal plate, 13-First side plate, 14-Second side plate, 15-First rear folding plate, 2-Right sliding door, 21-Right upright plate, 22-Right horizontal plate, 23-Third side plate, 24-Fourth side plate, 25-Second rear folding plate, 3-Upper roller, 4-Lower roller, 41-Roller groove, 5-Front guard plate, 6-Upper guide rail, 61-Upper guide rail groove, 7-Lower guide rail, 71-Support platform, 72-Lower folding plate, 8-Reinforcing rib, 9-Lower baffle. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Structures or components not limited in this invention employ conventional techniques in the art.

[0024] The lightweight machine tool sliding door structure of the embodiment, such as Figures 1-9 As shown, the machine tool includes a left sliding door 1 and a right sliding door 2. The main bodies of the left sliding door 1 and the right sliding door 2 are made of sheet metal with a thickness of 1.5mm. Three upper rollers 3 are installed on the upper side of the left sliding door 1 and the right sliding door 2, and two lower rollers 4 are installed on the lower side of the left sliding door 1 and the right sliding door 2, respectively. An upper guide rail 6 and a lower guide rail 7 are fixed on the front guard plate 5 of the machine tool. The upper guide rail 6 is provided with an upper guide rail groove 61. The cross-section of the upper guide rail groove 61 is a U-shape with the opening facing upwards. The three upper rollers 3 are respectively set in the upper guide rail groove 61. The center lines are set vertically, and the orthographic projection of the center lines of the three upper rollers 3 on the horizontal plane is arranged in a triangular pattern. The wheel surfaces of two upper rollers 3 press against the front groove wall of the upper guide rail groove 61, and the wheel surface of the other upper roller 3 presses against the rear groove wall of the upper guide rail groove 61. The center lines of the two lower rollers 4 are set horizontally, and the wheel surfaces of the two lower rollers 4 are respectively equipped with roller grooves 41. The cross-section of the roller grooves 41 is V-shaped. The top of the lower guide rail 7 is provided with a support platform 71 with an inverted V-shaped cross-section, and the roller grooves 41 fit into the support platform 71.

[0025] In this embodiment, the left sliding door 1 includes a left vertical plate 11 and a left horizontal plate 12, with the left horizontal plate 12 vertically connected to the top of the left vertical plate 11. The right sliding door 2 includes a right vertical plate 21 and a right horizontal plate 22, with the right horizontal plate 22 vertically connected to the top of the right vertical plate 21. The left horizontal plate 12 and the right horizontal plate 22 are respectively arranged facing rearward. A plurality of reinforcing ribs 8 are respectively arranged on the back of the left vertical plate 11 and the right vertical plate 21 and the bottom surface of the left horizontal plate 12 and the right horizontal plate 22.

[0026] In this embodiment, a first side plate 13 is connected to the right side of the left vertical plate 11, a second side plate 14 is connected to the right side of the left horizontal plate 12, and a first rear folding plate 15 is connected to the rear end of the second side plate 14. A third side plate 23 is connected to the left side of the right vertical plate 21, a fourth side plate 24 is connected to the left side of the right horizontal plate 22, and a second rear folding plate 25 is connected to the rear end of the third side plate 23. When the left sliding door 1 and the right sliding door 2 are closed, the first side plate 13 and the third side plate 23 intersect to form a first labyrinth sealing structure, and the second side plate 14 and the fourth side plate 24 intersect. The first rear folding plate 15 and the second rear folding plate 25 are interleaved to form the third labyrinth sealing structure; the bottom of the left sliding door 1 and the right sliding door 2 are respectively fixed with a lower baffle 9 with an L-shaped cross section, and the bottom of the lower guide rail 7 is provided with a lower folding plate 72 with an L-shaped cross section. The horizontal parts of the lower baffle 9 and the lower folding plate 72 are respectively set forward, and the horizontal part of the lower baffle 9 is located above the horizontal part of the lower folding plate 72. The horizontal parts of the lower baffle 9 and the lower folding plate 72 together with the rear side of the front protective plate 5 form the fourth labyrinth sealing structure.

[0027] In the above sliding door structure, the two lower rollers 4 on the left sliding door 1 and the right sliding door 2 mainly serve a supporting function, and the center lines of the three upper rollers 3 are arranged in a triangular pattern on the horizontal plane. Figure 7 As shown by the dashed line, the two front and one back distribution can adjust the front and rear angles of the left sliding door 1 and the right sliding door 2, ensuring the smooth closing of the left sliding door 1 and the right sliding door 2, reducing scrap caused by manufacturing errors, and ensuring that the three upper rollers 3 always abut against the front and rear groove walls of the upper guide rail groove 61 during the closing process, reducing the front and rear swaying of the left sliding door 1 and the right sliding door 2, and ensuring the smooth operation of the sliding door.

[0028] The main bodies of the left sliding door 1 and right sliding door 2 of the above-mentioned sliding door structure are made of sheet metal with a thickness of 1.5mm, which has a low cost. The weight of a single sliding door (i.e., left sliding door 1 or right sliding door 2) of this sliding door structure is about 18kg, while the weight of an existing single-leaf machine tool sliding door of the same size is about 33kg. The weight of the sliding door structure of this utility model is greatly reduced, and the overall structure of the sliding door is simple and reliable, which can effectively reduce the processing and assembly time of the sliding door and improve the installation efficiency.

Claims

1. A lightweight machine tool sliding door structure, characterized in that, The machine tool includes a left sliding door and a right sliding door. The main bodies of the left and right sliding doors are each made of sheet metal with a thickness of 1.5mm. Three upper rollers are installed on the upper side of each of the left and right sliding doors, and two lower rollers are installed on the lower side of each of the left and right sliding doors. An upper guide rail and a lower guide rail are fixed on the front protective plate of the machine tool. The upper guide rail has an upper guide rail groove with an upward-opening U-shaped cross-section. The three upper rollers are respectively set in the upper guide rail groove, and the center lines of the three upper rollers are vertically set. The orthographic projection of the center lines of the three upper rollers on the horizontal plane forms a triangular layout. The wheel surfaces of two of the upper rollers press against the front groove wall of the upper guide rail groove, and the wheel surface of the other upper roller presses against the rear groove wall of the upper guide rail groove. The center lines of the two lower rollers are horizontally set, and the wheel surfaces of the two lower rollers are respectively equipped with roller grooves that fit against the top of the lower guide rail.

2. The lightweight machine tool sliding door structure according to claim 1, characterized in that, The roller groove has a V-shaped cross-section, and the top of the lower guide rail is provided with a support platform with an inverted V-shaped cross-section. The roller groove fits into the support platform.

3. The lightweight machine tool sliding door structure according to claim 1, characterized in that, The left sliding door includes a left vertical panel and a left horizontal panel, with the left horizontal panel vertically connected to the top of the left vertical panel. The right sliding door includes a right vertical panel and a right horizontal panel, with the right horizontal panel vertically connected to the top of the right vertical panel. The left and right horizontal panels are respectively arranged facing rearward. Several reinforcing ribs are respectively provided on the back of the left and right vertical panels and the bottom of the left and right horizontal panels.

4. The lightweight machine tool sliding door structure according to claim 3, characterized in that, The left vertical plate is connected to a first side plate on its right side, the left horizontal plate is connected to a second side plate on its right side, the rear end of the second side plate is connected to a first rear folding plate, the right vertical plate is connected to a third side plate on its left side, the right horizontal plate is connected to a fourth side plate on its left side, the rear end of the third side plate is connected to a second rear folding plate, and when the left and right sliding doors are closed, the first and third side plates intersect to form a first labyrinth sealing structure, the second and fourth side plates intersect to form a second labyrinth sealing structure, and the first and second rear folding plates intersect to form a third labyrinth sealing structure.

5. The lightweight machine tool sliding door structure according to claim 1, characterized in that, The bottom of the left sliding door and the right sliding door are respectively fixed with a lower baffle with an L-shaped cross-section. The bottom of the lower guide rail is provided with a lower folding plate with an L-shaped cross-section. The horizontal parts of the lower baffle and the lower folding plate are respectively arranged facing forward. The horizontal part of the lower baffle is located above the horizontal part of the lower folding plate. The horizontal parts of the lower baffle and the lower folding plate, together with the rear side of the front protective plate, form a fourth labyrinth sealing structure.

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