Box cover lifting device and multi-wire cutting machine

Abstract

The utility model provides a box cover lifting device and a multi-wire cutting machine. The box cover lifting device comprises a box cover, a guide rail, a sliding block, a rack, a stabilizing device, a gear, a driving device and an ejection device. Sliding blocks are installed on the box cover, guide rails are installed on the box body, the sliding blocks are installed on the guide rails in a sliding mode, and the box cover slides relative to the box body through cooperation of the sliding blocks and the guide rails. A rack is installed on the box cover, a gear is installed on the box body and meshed with the rack, the gear is connected with a driving device, and the driving device drives the box cover to move up and down through cooperation of the gear and the rack. A stabilizing device is fixedly installed on the box body and slidably connected with the rack in the vertical direction and limits the rack to deflect in the horizontal direction. An ejection device is installed on the box body, and after the box cover ascends, descending is limited through ejection of the ejection device. The stabilizing device is arranged at the position close to the gear, the rack is limited in the horizontal direction, and separation of the rack and the gear caused by shifting of the gravity center of the box cover is prevented.

Description

Technical Field

[0001] The utility model relates to the field of machine tool box cover lifting devices, in particular to a box cover lifting device and a multi-wire cutting machine. Background Art

[0002] Most machining equipment on the market have a box cover, which can play a role in protection, dust prevention, and splash prevention. After the processing is completed, it is often necessary to lift the box cover. For example, patent CN110385799A provides a diamond wire multi-wire cutting machine, and patent CN104441285B provides a small horizontal annular diamond wire cutting machine. When the existing box cover lifting device is lifted, when the box cover rises to the top, a part of the box cover will exceed the connection limit of the slider and the guide rail and cannot be restricted, causing the box cover to deflect due to the offset of the center of gravity. At this time, the rack and gear used for transmission are very likely to deviate, making the box cover unable to move or even stuck. Utility Model Content

[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a box cover lifting device and a multi-wire cutting machine.

[0004] A box cover lifting device provided by the utility model comprises: a box cover, a guide rail, a slide block, a rack, a stabilizing device, a gear, a driving device and an ejecting device.

[0005] The box cover is installed on the box body;

[0006] The box cover is provided with a slider, the box body is provided with a guide rail, the slider is slidably provided on the guide rail, and the box cover slides relative to the box body through the slider cooperating with the guide rail;

[0007] A rack is installed on the box cover, a gear is installed on the box body, the gear is meshed with the rack, the gear is connected to a driving device, and the driving device drives the box cover to move up and down through the gear and the rack;

[0008] A stabilizing device is fixedly installed on the box body, and the stabilizing device is slidably connected to the rack in the vertical direction and limits the rack from deflecting in the horizontal direction;

[0009] An ejection device is installed on the box body, and after the box cover rises, the ejection of the ejection device is used to limit the descent.

[0010] Preferably, a limit block is provided on the stabilizing device, a groove is provided on the side of the rack in the vertical direction, the rack is allowed to move vertically relative to the limit block through the groove, and the rack and the limit block limit horizontal deflection through the two side walls of the groove.

[0011] Preferably, the ejection device comprises: a cylinder cover, a cylinder, a movable rod and a shaft sleeve;

[0012] The cylinder is installed on the box body, the cylinder cover is arranged on the outside of the cylinder, one end of the movable rod is connected to the cylinder, the cylinder drives the movable rod to be ejected toward the box cover, the box body is provided with a sleeve in the ejection direction of the movable rod, the movable rod passes through the sleeve and the circumferential deflection is limited by the sleeve.

[0013] Preferably, the driving device comprises: a transmission rod, a driver and a bearing support frame;

[0014] A driver and a bearing support frame are installed on the box body. The driver is connected to and drives the transmission rods on both sides. The transmission rods pass through the bearing support frame and then connect to and drive the gears to rotate.

[0015] Preferably, a first limit switch and a second limit switch are installed on the box;

[0016] The first limit switch is arranged at the top of the guide rail, and the first limit switch is triggered when the slider slides to the top of the guide rail along with the box cover;

[0017] The second limit switch is located below the first limit switch, and a switch touch plate is installed on the box cover. When the box cover descends to a position close to the bottom of the guide rail, the switch touch plate triggers the second limit switch.

[0018] Preferably, a plurality of the sliders are provided, and the first limit switch is triggered by the uppermost slider.

[0019] Preferably, the guide rail, the slider, the rack and the gear are provided in two groups and are respectively installed on both sides of the box cover close to the box body in the horizontal direction, and the rack and the guide rail are arranged vertically.

[0020] Preferably, the first limit switch and the second limit switch are connected to a control device, and the control device is connected to the driver.

[0021] Preferably, the stabilizing device is installed at a position close to the gear.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. This application sets a stabilizing device near the gear to limit the rack in the horizontal direction, thereby preventing the rack and gear from separating due to the displacement of the center of gravity of the box cover;

[0024] 2. This application adopts an ejection device to limit the box cover from falling, without manual restriction;

[0025] 3. This application uses a limit switch to limit the travel of the box cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0027] Figure 1 It is a side view schematic diagram of the box cover lifting device;

[0028] Figure 2 This is a schematic diagram of the installation of the lifting device on the box;

[0029] Figure 3 is a schematic diagram of the driving device structure;

[0030] Figure 4 Schematic diagram of the matching relationship between the guide rail and the slider;

[0031] Figure 5 Schematic diagram of the matching relationship between the gear and the rack;

[0032] Figure 6 It is a schematic diagram of the ejection device structure;

[0033] Figure 7 It is a schematic diagram of the structure of the stabilizing device;

[0034] As shown in the figure:

[0035] DETAILED DESCRIPTION

[0036] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0037] This embodiment provides a device for lifting the box cover of various machine tools, and is particularly suitable for multi-wire cutting machines.

[0038] This embodiment mainly includes: a box cover 2, a guide rail 3, a slider 4, a first limit switch 5, a second limit switch 6, a switch touch plate 7, a stabilizing device 8, a rack 9, a gear 10, a limit block 18, a driving device and an ejection device. The driving device includes: a transmission rod 11, a driver 12 and a bearing support frame 13. The ejection device includes: a cylinder cover 14, a cylinder 15, a movable rod 16 and a sleeve 17.

[0039] like Figure 1-2 As shown in 4 , a slider 4 is installed on the box cover 2, and a guide rail 3 is installed on the box body 1. The slider 4 is slidably installed on the guide rail 3, and the box cover 2 slides relative to the box body 1 through the slider 4 and the guide rail 3.

[0040] The box body 1 is provided with a first limit switch 5 and a second limit switch 6; the first limit switch 5 is arranged at the top of the guide rail 3, and the first limit switch 5 is triggered when the slider 4 slides to the top of the guide rail 3 with the box cover 2; the second limit switch 6 is located below the first limit switch 5, and a switch touch plate 7 is arranged on the box cover 2, and the switch touch plate 7 triggers the second limit switch 6 when the box cover 2 descends to near the bottom of the guide rail 3. There are multiple sliders 4, and the first limit switch 5 is triggered by the uppermost slider 4. The first limit switch 5 and the second limit switch 6 are connected to the control device, and the control device is connected to the driver 12.

[0041] like Figure 3 As shown, the driving device includes: a transmission rod 11, a driver 12 and a bearing support frame 13; the driver 12 and the bearing support frame 13 are installed on the box body 1, the driver 12 is connected to and drives the transmission rods 11 on both sides, and the transmission rod 11 passes through the bearing support frame 13 and then connects to drive the gear 10 to rotate.

[0042] like Figure 5 As shown, a rack 9 is installed on the box cover 2, and a gear 10 is installed on the box body 1. The gear 10 meshes with the rack 9, and the gear 10 is connected to the driving device. The driving device drives the box cover 2 to move up and down through the gear 10 and the rack 9. The stabilizing device 8 is installed near the gear 10.

[0043] Combination Figure 7 As shown, a stabilizing device 8 is fixedly installed on the box body 1, and the stabilizing device 8 is slidably connected to the rack 9 in the vertical direction and limits the rack 9 from deflecting in the horizontal direction. A limit block 18 is provided on the stabilizing device 8, and a groove is provided on the side of the rack 9 in the vertical direction. The rack 9 is allowed to move vertically relative to the limit block 18 through the groove, and the rack 9 limits the horizontal deflection through the two side walls of the groove and the limit block 18.

[0044] like Figure 6 As shown, an ejection device is installed on the box body 1, and the box cover 2 is lifted up and the lowering is limited by the ejection of the ejection device. The ejection device includes: a cylinder cover 14, a cylinder 15, a movable rod 16 and a sleeve 17; the cylinder 15 is installed on the box body 1, and the cylinder cover 14 is arranged outside the cylinder 15. One end of the movable rod 16 is connected to the cylinder 15, and the cylinder 15 drives the movable rod 16 to be ejected toward the box cover 2. The box body 1 is provided with a sleeve 17 in the ejection direction of the movable rod 16, and the movable rod 16 passes through the sleeve 17 and is limited in circumferential deflection by the sleeve 17.

[0045] In one embodiment, two groups of guide rails 3, sliders 4, racks 9 and gears 10 are provided and respectively installed on both sides of the box cover 2 close to the box body 1 along the horizontal direction, and the racks 9 and guide rails 3 are arranged vertically.

[0046] Working principle:

[0047] At present, in order to adapt to the lifting function of the box cover 2, most racks 9 and guide rails 3 on the market are arranged vertically. In general, in order to leave space for rising, the slider 4 that cooperates with the guide rail 3 will be installed in the lower half of the box cover 2. This makes it possible for the upper part of the box cover 2 to be free from the constraints of the guide rail 3 and the slider 4 when the box cover 2 rises to a higher position. At the same time, considering that there must be a certain gap between the guide rail 3 and the slider 4 in order to achieve sliding, it is easy for the box cover 2 to deflect in the horizontal direction due to the center of gravity offset. When the box cover 2 deflects, the rack 9 and the gear 10 will be separated.

[0048] In this embodiment, a stabilizing device 8 is arranged on the box body 1 near the gear 10, and a groove is arranged in the vertical direction of the rack 9. The limit block 18 of the stabilizing device 8 can slide along the groove, thereby not restricting the up and down movement of the rack 9. However, the limit block 18 will interfere with the side wall of the groove, which will restrict the rack 9 from deflecting with the box body 1 and fix the position of the rack 9 and the gear 10.

[0049] Other working processes of this embodiment: First, the driver 12 drives the gears 10 on both sides to rotate through the transmission rod 11. The bearing support frame 13 is provided with bearings inside, which can support the transmission rod 11 without affecting the rotation of the transmission rod 11. The gear 10 drives the box cover 2 to move up and down through the rack 9 meshing with it. When the box cover 2 is about to rise to the top, the uppermost slider 4 will touch the first limit switch 5, and the first limit switch 5 will send a signal to stop rising to the control device, and the control device will stop the operation of the driver 12. When the box cover 2 is about to fall to the bottom, the switch touch plate 7 will touch the second limit switch 6, and the second limit switch 6 will send a signal to stop falling to the control device, and the control device will stop the operation of the driver 12.

[0050] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A box cover lifting device, characterized in that: include: A box cover (2), a guide rail (3), a slide block (4), a rack (9), a stabilizing device (8), a gear (10), a driving device and an ejecting device; The box cover (2) is installed on the box body (1); A slider (4) is installed on the box cover (2), a guide rail (3) is installed on the box body (1), the slider (4) is slidably installed on the guide rail (3), and the box cover (2) slides relative to the box body (1) by means of the slider (4) and the guide rail (3); A rack (9) is installed on the box cover (2), a gear (10) is installed on the box body (1), the gear (10) is meshed with the rack (9), the gear (10) is connected to a driving device, and the driving device drives the box cover (2) to move up and down through the gear (10) and the rack (9); A stabilizing device (8) is fixedly mounted on the box body (1), and the stabilizing device (8) is slidably connected to the rack (9) in the vertical direction and limits the rack (9) from deflecting in the horizontal direction; An ejection device is installed on the box body (1), and after the box cover (2) rises, the ejection of the ejection device is used to limit the descent.

2. The box cover lifting device according to claim 1, characterized in that: A limit block (18) is arranged on the stabilizing device (8), and a groove is arranged on the side of the rack (9) in the vertical direction. The rack (9) is allowed to move in the vertical direction relative to the limit block (18) through the groove, and the rack (9) and the limit block (18) are connected through the two side walls of the groove to limit horizontal deflection.

3. The box cover lifting device according to claim 1, characterized in that: The ejection device comprises: a cylinder cover (14), a cylinder (15), a movable rod (16) and a shaft sleeve (17); The cylinder (15) is mounted on the box body (1), the cylinder cover (14) is arranged outside the cylinder (15), one end of the movable rod (16) is connected to the cylinder (15), the cylinder (15) drives the movable rod (16) to be ejected toward the box cover (2), the box body (1) is provided with a shaft sleeve (17) in the ejection direction of the movable rod (16), the movable rod (16) passes through the shaft sleeve (17) and the circumferential deflection is limited by the shaft sleeve (17).

4. The box cover lifting device according to claim 1, characterized in that: The driving device comprises: a transmission rod (11), a driver (12) and a bearing support frame (13); A driver (12) and a bearing support frame (13) are installed on the box body (1); the driver (12) is connected to and drives the transmission rods (11) on both sides; the transmission rods (11) pass through the bearing support frame (13) and then are connected to and drive the gear (10) to rotate.

5. The box cover lifting device according to claim 1, characterized in that: A first limit switch (5) and a second limit switch (6) are installed on the box body (1); The first limit switch (5) is arranged at the top of the guide rail (3), and the slider (4) triggers the first limit switch (5) when it slides to the top of the guide rail (3) along with the box cover (2); The second limit switch (6) is located below the first limit switch (5), and a switch touch plate (7) is installed on the box cover (2). When the switch touch plate (7) descends to a position close to the bottom of the guide rail (3) as the box cover (2) descends, the second limit switch (6) is triggered.

6. The box cover lifting device according to claim 5, characterized in that: A plurality of sliders (4) are provided, and the first limit switch (5) is triggered by the uppermost slider (4).

7. The box cover lifting device according to claim 1, characterized in that: The guide rail (3), the slider (4), the rack (9) and the gear (10) are provided in two groups and are respectively installed on both sides of the box cover (2) close to the box body (1) in the horizontal direction, and the rack (9) and the guide rail (3) are arranged vertically.

8. The box cover lifting device according to claim 5, characterized in that: The first limit switch (5) and the second limit switch (6) are connected to a control device, and the control device is connected to a driver (12).

9. The box cover lifting device according to claim 1, characterized in that: The stabilizing device (8) is installed at a position close to the gear (10).

10. A multi-wire cutting machine, characterized in that: A box cover lifting device according to any one of claims 1 to 9 is adopted.

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