Lifting device of vertical milling machine

Abstract

The utility model discloses a vertical milling machine lifting device which comprises a base and a positioning table arranged on the top of the base, a fixing plate is arranged on one side of the top of the positioning table, a portal frame is arranged on the top of the fixing plate, and a lifting table used for carrying workpieces is arranged between the portal frame and the fixing plate through a lifting mechanism. The lifting mechanism comprises a lifting lead screw arranged between the portal frame and the fixing plate, and a lifting sliding block for the lifting lead screw to move up and down is arranged on the lifting lead screw. The utility model relates to the technical field of lifting devices. According to the lifting device of the vertical milling machine, the lifting lead screw is driven to rotate through the arranged driving motor, then the lifting sliding block can move up and down, up-down lifting work of the lifting table can be completed under connection of the connecting frame, and the lifting table is more stable in the up-down lifting process under cooperation of the four limiting polished rods.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a vertical milling machine lifting device. Background Art

[0002] Milling machines include horizontal milling machines and vertical milling machines. The main difference between vertical milling machines and horizontal milling machines is that the spindle is arranged vertically. In addition to the different spindle arrangements, the worktable can be raised and lowered. The milling cutter used in vertical milling machines is relatively flexible and has a wider range of applications.

[0003] At present, a vertical milling machine lifting device disclosed in the patent number "CN219561548U" belongs to the field of machine tool technology, including: a base, a plurality of threaded shafts are rotatably connected to the lower end surface of the worktable, a motor, a first transmission mechanism and a plurality of second transmission mechanisms are installed on the lower end surface of the worktable, the motor is connected to the first transmission mechanism, the first transmission mechanism is connected to the plurality of the second transmission mechanisms, the second transmission mechanism is connected to the plurality of the threaded shafts, a plurality of threaded sleeves are installed on the mounting plate, and the threaded shafts are threadedly connected to the threaded sleeves. The device is connected to the first transmission mechanism through the motor, the first transmission mechanism is connected to the plurality of the second transmission mechanisms, the second transmission mechanism is connected to the plurality of the threaded shafts, a plurality of threaded sleeves are installed on the mounting plate, and the threaded shafts are threadedly connected to the threaded sleeves, so that the worktable of the device always keeps balanced force when it is lifted and lowered, avoiding shaking, thereby improving the processing accuracy;

[0004] However, this device and some existing lifting structures use screws to achieve lifting, but some of the screws are directly exposed to the outside, and it is easy for the workpiece to directly collide with the screw due to operating errors of the staff, thereby causing damage to the screw; at the same time, it is easy for the screw to adhere to debris generated by the milling cutter when working. When debris adheres to the screw, it is easy to cause jamming or even damage to the lifting platform during the up and down movement. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a lifting device for a vertical milling machine, which solves the problem that some of the existing lifting structures use screws to achieve lifting, but some of the screws are directly exposed to the outside, and it is easy for the workpiece to directly collide with the screw due to operating errors of the staff, thereby causing damage to the screw; at the same time, it is easy for the screw to adhere to debris generated by the milling cutter when working. When there is debris adhering to the screw, it is easy to cause jamming or even damage to the lifting platform during the up and down movement.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a vertical milling machine lifting device, including a base and a positioning platform arranged on the top of the base, a fixed plate is arranged on one side of the top of the positioning platform, a gantry is arranged on the top of the fixed plate, a lifting platform for carrying workpieces is arranged between the gantry and the fixed plate through a lifting mechanism, the lifting mechanism includes a lifting screw arranged between the gantry and the fixed plate, a lifting slider is arranged on the lifting screw for the lifting screw to move up and down, and the lifting slider is connected to the lifting platform through a connecting frame;

[0007] A protective sleeve is also provided between the gantry and the positioning platform to wrap and protect the lifting screw rod, and an opening that matches the connecting frame is provided on one side of the protective sleeve;

[0008] The lifting screw rod is also provided with a cleaning component for cleaning debris, and the cleaning component includes two adsorption ring blocks which are arranged opposite to each other and slide linearly along the lifting screw rod, and the two adsorption ring blocks are respectively located directly above and directly below the lifting slider, and the adsorption ring blocks are connected to the connecting frame through a limit rod, and an adsorption component for adsorbing debris is provided in the adsorption ring block;

[0009] A guide assembly for guiding the sliding of the connecting frame is provided between the gantry and the fixed plate;

[0010] A limiting mechanism for limiting the position of the lifting platform is provided between the lifting platform and the positioning platform.

[0011] Preferably, the connecting frame includes an extension rod that moves up and down along the opening, and one end of the extension rod is connected to the lifting slider, and the other end of the extension rod is installed with a connecting platform, and the connecting platform and the lifting platform are connected by a connecting rod.

[0012] Preferably, the guide assembly comprises two guide light rods arranged in parallel between the gantry and the fixed plate, the guide light rods are provided with guide blocks which slide linearly along the guide light rods, and the two guide blocks are connected to the connecting platform.

[0013] Preferably, the limiting mechanism comprises limiting light rods arranged at the four end corners of the lifting platform, and the positioning platform is provided with limiting sliding holes for the limiting light rods to pass through.

[0014] Preferably, a driving motor for driving the lifting screw to rotate is provided on the gantry.

[0015] Preferably, the adsorption assembly includes a plurality of suction ports distributed in an array on the inner wall of the adsorption ring block, an air cavity connected to the suction port is provided in the adsorption ring block, a debris box for collecting debris is provided on the connecting platform, and the debris box and the air cavity are connected by an air guide assembly.

[0016] Preferably, the air guide assembly includes an air pipe arranged on the adsorption ring block and connected to the air cavity, the debris box is provided with a dust extraction pipe, and the dust extraction pipe is provided with a dust extraction pump, and the dust extraction pipe and the air pipe are connected by a dust extraction hose.

[0017] Preferably, the protective sleeve includes two half-enclosed tubes, and the upper and lower ends of the half-enclosed tubes are provided with mounting rings arranged in a semi-circular shape, and the mounting rings are connected to the gantry and the fixing plate by fixing bolts.

[0018] Beneficial Effects

[0019] The utility model provides a vertical milling machine lifting device. Compared with the prior art, it has the following beneficial effects:

[0020] (1) The lifting device of the vertical milling machine drives the lifting screw to rotate through the set driving motor, so that the lifting slider can move up and down. The lifting platform can be lifted up and down by the connection of the connecting frame, and with the cooperation of the four limit light rods, the lifting platform is more stable during the up and down lifting process; wherein, the lifting screw can be protected and wrapped by the set protective sleeve, thereby effectively preventing the workpiece or other external factors from causing damage to the lifting screw, thereby extending the service life of the lifting screw to a certain extent.

[0021] (2) In the vertical milling machine lifting device, the connecting frame will synchronously drive the two adsorption ring blocks to move up and down during the up and down movement, and the adsorption ring blocks will start to work through the dust extraction pump during the up and down movement, so that the multiple air ports connected to the air cavity have a certain suction force, so that the debris can be adsorbed into the air cavity during the up and down movement, so that the debris on the lifting screw can be cleaned, and the lifting slider can slide up and down more smoothly, so that the lifting platform can perform the lifting work better, and the service life of the entire device can be extended to a certain extent; wherein, through the mutual cooperation between the set air pipe, the dust extraction main pipe and the dust extraction hose, the debris can be collected in the debris box, thereby completing the centralized treatment of the debris.

[0022] (3) The vertical milling machine lifting device disassembles the protective tube sleeve into two half-tubes, and the provided mounting ring facilitates the installation of the two half-tubes on the gantry and the fixed plate, thereby making it possible to disassemble and replace one of the half-tubes or both of the half-tubes when they are damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a vertical milling machine lifting device of the utility model;

[0024] Figure 2 It is a schematic diagram of the interior of the protective sleeve of the utility model;

[0025] Figure 3 It is a schematic diagram of the interior of the adsorption ring block of the utility model.

[0026] In the figure: 1. base; 2. positioning table; 3. fixing plate; 4. gantry; 5. lifting platform; 6. lifting screw rod; 7. lifting slider; 8. protective sleeve; 9. opening; 10. adsorption ring block; 11. limit rod; 12. connecting frame; 13. guide light rod; 14. guide block; 15. limit light rod; 16. drive motor; 17. half-wrapped pipe; 18. mounting ring; 19. suction port; 20. air cavity; 21. debris box; 22. air pipe; 23. dust extraction main pipe; 24. dust extraction pump; 25. dust extraction hose. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides two technical solutions:

[0029] Figure 1-3 The first embodiment is shown: a vertical milling machine lifting device, comprising a base 1 and a positioning platform 2 arranged on the top of the base 1, a fixing plate 3 is arranged on one side of the top of the positioning platform 2, a gantry 4 is arranged on the top of the fixing plate 3, a lifting platform 5 for carrying workpieces is arranged between the gantry and the fixing plate 3 through a lifting mechanism, the lifting mechanism comprises a lifting screw 6 arranged between the gantry 4 and the fixing plate 3, a lifting slider 7 is arranged on the lifting screw 6 for the lifting screw 6 to move up and down, and the lifting slider 7 is connected to the lifting platform 5 through a connecting frame 12;

[0030] A protective sleeve 8 is also provided between the gantry 4 and the positioning platform 2 to wrap and protect the lifting screw 6, and an opening 9 is provided on one side of the protective sleeve 8 to match the connecting frame 12;

[0031] The lifting screw rod 6 is also provided with a cleaning component for cleaning the debris, and the cleaning component includes two adsorption ring blocks 10 which are arranged opposite to each other and slide linearly along the lifting screw rod 6, and the two adsorption ring blocks 10 are respectively located directly above and directly below the lifting slider 7, and the adsorption ring blocks 10 are connected to the connecting frame 12 through a limit rod 11, and an adsorption component for adsorbing the debris is provided in the adsorption ring block 10;

[0032] A guide assembly for guiding the sliding of the connecting frame 12 is provided between the gantry 4 and the fixed plate 3;

[0033] A limiting mechanism for limiting the position of the lifting platform 5 is provided between the lifting platform 5 and the positioning platform 2 .

[0034] The connecting frame 12 includes an extension rod that moves up and down along the opening 9, and one end of the extension rod is connected to the lifting slider 7, and the other end of the extension rod is equipped with a connecting platform, and the connecting platform and the lifting platform 5 are connected by a connecting rod.

[0035] Among them, the guide assembly includes two guide light rods 13 arranged in parallel between the gantry 4 and the fixed plate 3, and the guide light rods 13 are provided with guide blocks 14 that slide linearly along the guide light rods 13, and the two guide blocks 14 are both connected to the connecting platform, further guiding the connecting frame 12 to slide in a limited position, thereby further making the lifting platform 5 more stable during the up and down lifting process.

[0036] The limiting mechanism includes limiting light rods 15 arranged at the four end corners of the lifting platform 5, and the positioning platform 2 is provided with limiting sliding holes for the limiting light rods 15 to pass through, so that the lifting platform 5 is more stable during the up and down lifting process.

[0037] A driving motor 16 for driving the lifting screw rod 6 to rotate is disposed on the gantry 4 .

[0038] Among them, the adsorption component includes a plurality of suction ports 19 distributed in an array on the inner wall of the adsorption ring block 10, an air cavity 20 connected to the suction port 19 is provided in the adsorption ring block 10, a debris box 21 for collecting debris is provided on the connecting platform, and the debris box 21 and the air cavity 20 are connected by an air guide component.

[0039] The air guide assembly includes an air pipe 22 arranged on the adsorption ring block 10 and connected to the air cavity 20, a dust extraction pipe 23 is provided on the debris box 21, and a dust extraction pump 24 is provided on the dust extraction pipe 23. The dust extraction pipe 23 and the air pipe 22 are connected by a dust extraction hose 25.

[0040] The driving motor 16 is provided to drive the lifting screw 6 to rotate, so that the lifting slider 7 can move up and down. Under the connection of the connecting frame 12, the lifting platform 5 can be lifted up and down, and with the cooperation of the four limit light rods 15, the lifting platform 5 is more stable during the lifting and lowering process; wherein, the lifting screw 6 can be protected and wrapped by the provided protective sleeve, thereby effectively preventing the workpiece or other external factors from causing damage to the lifting screw 6, and extending the service life of the lifting screw 6 to a certain extent; wherein, the connecting frame 12 will synchronously drive the two adsorption ring blocks 10 to move up and down during the lifting and lowering process, and the adsorption ring When the block 10 moves up and down, the dust pump 24 starts to work, so that the multiple air ports connected to the air cavity 20 have a certain suction force, so that the debris can be adsorbed into the air cavity 20 during the up and down lifting process, so that the debris on the lifting screw 6 can be cleaned, and the lifting slider 7 can slide up and down more smoothly, so that the lifting platform 5 can perform the lifting work better, and the service life of the entire device can be extended to a certain extent; wherein, through the mutual cooperation between the set air pipe 22, the dust extraction main pipe 23 and the dust extraction hose 25, the debris can be collected in the debris box 21, thereby completing the centralized processing of the debris.

[0041] Figure 1 and Figure 2 A second embodiment is shown, which mainly differs from the first embodiment in that the protective sleeve 8 includes two half-tubes 17, and the upper and lower ends of the half-tubes 17 are provided with semi-circular mounting rings 18, and the mounting rings 18 are connected to the gantry 4 and the fixing plate 3 by fixing bolts.

[0042] Among them, the protective sleeve 8 is formed by installing two half-tubes 17. Specifically, a mounting strip is provided on one side of the two half-tubes 17, and the two mounting strips can be connected by through bolts. The upper and lower ends of the half-tube 17 are provided with a mounting ring 18 in a semi-circular shape, and the mounting ring 18 is connected to the gantry 4 and the fixing plate 3 by fixing bolts, which is convenient for disassembly of the protective sleeve, so that one of the half-tubes 17 or both of the half-tubes 17 can be disassembled and replaced when they are damaged.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0044] When in use, firstly, the driving motor 16 is used to drive the lifting screw 6 to rotate, so that the lifting slider 7 can move up and down, and the lifting platform 5 can be lifted up and down under the connection of the connecting frame 12, and with the cooperation of the four limiting light rods 15, the lifting platform 5 is more stable during the up and down lifting process; wherein, the lifting screw 6 can be protected and wrapped by the provided protective sleeve, thereby effectively preventing the lifting screw 6 from being damaged by the workpiece or other external factors, and prolonging the service life of the lifting screw 6 to a certain extent; wherein, the connecting frame 12 will synchronously drive the two adsorption ring blocks 10 to move up and down during the up and down lifting process, and the adsorption ring block 10 starts to work through the dust extraction pump 24 during the up and down movement, so that the multiple air ports connected to the air cavity 20 have a certain Suction force can absorb the debris into the air cavity 20 during the up and down lifting process, so that the debris on the lifting screw 6 can be cleaned, and the lifting slider 7 can slide up and down more smoothly, so that the lifting platform 5 can perform the lifting work better, and to a certain extent extend the service life of the entire device; wherein, through the mutual cooperation between the set air pipe 22, the dust extraction main pipe 23 and the dust extraction hose 25, the debris can be collected in the debris box 21, and then the centralized treatment of the debris is completed; wherein, the protective pipe sleeve is disassembled into two half-tubes 17, and the set mounting ring 18 is convenient for installing the two half-tubes 17 on the gantry 4 and the fixed plate 3, so that one of the half-tubes 17 or both half-tubes 17 can be disassembled and replaced when they are damaged.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical milling machine lifting device, comprising a base (1) and a positioning platform (2) arranged on the top of the base (1), characterized in that: A fixing plate (3) is provided on one side of the top of the positioning platform (2), a gantry (4) is provided on the top of the fixing plate (3), a lifting platform (5) for carrying workpieces is provided between the gantry and the fixing plate (3) via a lifting mechanism, the lifting mechanism comprises a lifting screw (6) arranged between the gantry (4) and the fixing plate (3), a lifting slider (7) is provided on the lifting screw (6) for the lifting screw (6) to move up and down, and the lifting slider (7) is connected to the lifting platform (5) via a connecting frame (12); A protective sleeve (8) is also provided between the gantry (4) and the positioning platform (2) to wrap and protect the lifting screw rod (6), and an opening (9) matching with the connecting frame (12) is provided on one side of the protective sleeve (8); The lifting screw rod (6) is also provided with a cleaning component for cleaning debris, and the cleaning component comprises two adsorption ring blocks (10) arranged opposite to each other and sliding linearly along the lifting screw rod (6), and the two adsorption ring blocks (10) are respectively located directly above and directly below the lifting slider (7), and the adsorption ring blocks (10) are connected to the connecting frame (12) via a limiting rod (11), and an adsorption component for adsorbing debris is provided inside the adsorption ring block (10); A guide assembly for guiding the sliding movement of the connecting frame (12) is provided between the gantry (4) and the fixed plate (3); A limiting mechanism for limiting the position of the lifting platform (5) is provided between the lifting platform (5) and the positioning platform (2).

2. A vertical milling machine lifting device according to claim 1, characterized in that: The connecting frame (12) comprises an extension rod that moves up and down along the opening (9), and one end of the extension rod is connected to the lifting slider (7), and the other end of the extension rod is installed with a connecting platform, and the connecting platform is connected to the lifting platform (5) through a connecting rod.

3. A vertical milling machine lifting device according to claim 1, characterized in that: The guide assembly comprises two guide light rods (13) arranged in parallel between a gantry (4) and a fixed plate (3), the guide light rods (13) being provided with guide blocks (14) which slide linearly along the guide light rods (13), and the two guide blocks (14) are both connected to a connecting platform.

4. A vertical milling machine lifting device according to claim 1, characterized in that: The limiting mechanism comprises limiting light rods (15) arranged at four end corners of the lifting platform (5), and the positioning platform (2) is provided with limiting sliding holes for the limiting light rods (15) to pass through.

5. The vertical milling machine lifting device according to claim 1, characterized in that: The gantry (4) is provided with a driving motor (16) for driving the lifting screw rod (6) to rotate.

6. A vertical milling machine lifting device according to claim 2, characterized in that: The adsorption assembly comprises a plurality of suction ports (19) distributed in an array on the inner wall of an adsorption ring block (10); an air cavity (20) communicating with the suction port (19) is provided in the adsorption ring block (10); a debris box (21) for collecting debris in a centralized manner is provided on the connection platform; and the debris box (21) and the air cavity (20) are connected via an air guide assembly.

7. A vertical milling machine lifting device according to claim 6, characterized in that: The air guide assembly comprises an air pipe (22) arranged on the adsorption ring block (10) and connected to the air cavity (20); a dust extraction pipe (23) is arranged on the debris box (21); a dust extraction pump (24) is arranged on the dust extraction pipe (23); and the dust extraction pipe (23) and the air pipe (22) are connected via a dust extraction hose (25).

8. The vertical milling machine lifting device according to claim 1, characterized in that: The protective sleeve (8) comprises two half-enclosed tubes (17), and the upper and lower ends of the half-enclosed tubes (17) are both provided with semi-circular mounting rings (18), and the mounting rings (18) are connected to the gantry (4) and the fixing plate (3) via fixing bolts.

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