Numerically-controlled machine tool sliding column

Abstract

The utility model discloses a numerical control machine tool sliding column which comprises a shell and is characterized in that a movable plate is arranged above the shell, a sliding block is fixedly connected to the center position of the bottom of the movable plate, threaded holes are formed in the left side and the right side of the sliding block, oil injection holes are formed above the threaded holes, threaded rods are installed in the threaded holes in a penetrating mode, and the threaded rods are fixedly connected with the sliding block. Oil tanks are arranged on the two sides of the shell, oil pipes are connected to the bottoms of the oil tanks, and the other ends of the oil pipes penetrate through the side wall of the shell to be connected to the oil injection holes. A sliding column and a threaded rod of the numerical control machine tool are externally connected with a power device through a key groove to rotate, threads are meshed with a threaded hole in a sliding block so that the sliding block can drive a movable plate to move in one direction, equipment above the movable plate can be driven to move, an oil tank injects lubricating oil into the thread meshing position through an oil pipe and an oil injection hole, and the lubricating effect is improved; and the movable plate can move more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a sliding column of a numerically controlled machine tool. Background Art

[0002] Machine tools refer to machines for manufacturing machines and machinery, while CNC machine tools refer to automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool, and automatically processes the parts according to the shape and size required by the drawings. The basic components of CNC machine tools include processing program carriers, CNC devices, servo drive devices, machine tool bodies and other auxiliary devices. The slide column device for CNC machine tools is an indispensable and important component on CNC machine tools. The slide column can drive the tool head or workpiece to move. A good slide column device is a prerequisite for ensuring high quality and high precision of part processing.

[0003] In the prior art, it is mentioned that many CNC machine tools have slide columns, for example: CN214685240U, a slide column for CNC machine tools, rectangular frames are fixedly installed on both sides of the slide column body, motors are fixedly installed on the tops of the two rectangular frames, threaded rods are fixedly installed on the output shafts of the two motors, sliding sleeves are threadedly connected on the surfaces of the two threaded rods, and electric telescopic rods are fixedly installed on the tops of the opposite sides of the two sliding sleeves.

[0004] There are other existing technologies:

[0005] CN217800199U: A slide column for a numerically controlled machine tool;

[0006] CN214685222U: A slide column for numerically controlled machine tools.

[0007] The slide column for CNC machine tools mentioned in the above-mentioned prior art is mostly powered by threaded rotation or telescopic rods to move. The equipment is arranged inside the machine tool. When the machine tool is processing, some debris and cutting fluid mist will be generated, which will enter the interior of the slide column and have a certain impact on the entire motion structure. Long-term exposure to such an environment will cause metal parts to rust, thereby destroying the motion structure of the slide column and reducing the service life of the equipment. Utility Model Content

[0008] The purpose of the utility model is to provide a slide column for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machine tool slide column, including a shell, characterized in that: T-slots are opened on both sides of the top of the shell, a movable cavity is opened in the middle position of the top of the shell, a movable plate is arranged above the shell, bosses are fixedly connected to the left and right sides of the bottom of the movable plate, a slider is fixedly connected to the center position of the bottom of the movable plate, threaded holes are opened on the left and right sides of the slider, an oil filling hole is opened above the threaded hole, a threaded rod is installed through the threaded hole, circular holes are opened on the front and back sides of the shell near the two side walls, bearings are installed in the circular holes, and a threaded rod is installed in the bearing, oil tanks are arranged on both sides of the shell, a refueling hole is connected to the top of the oil tank, an oil pipe is connected to the bottom of the oil tank, and the other end of the oil pipe passes through the side wall of the shell and is connected to the oil filling hole.

[0010] Preferably, a telescopic box is provided on the front and back of the shell, a clockwork spring is installed inside the telescopic box, an iron baffle is provided at one end of the clockwork spring, the other end of the iron baffle extends out of the telescopic box into the movable cavity and is fixedly connected to a fixed plate, a hole is provided on the surface of the fixed plate, a screw is rotatably installed in the hole, a hole is also provided at the corresponding position of the slider, and the fixed plate is mounted on the surface of the slider by screws.

[0011] Preferably, key slots are provided at both ends of the threaded rod.

[0012] Preferably, a timed refueling device is provided in the fuel tank.

[0013] Preferably, the surface of the movable plate can be mounted with other equipment that needs to be moved, such as a tool table.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The CNC machine tool slide column, the threaded rod is rotated by the keyway external power device, and the threaded hole on the slider engages the slider to drive the movable plate to move in one direction, thereby driving the equipment above the movable plate to move. The oil tank regularly injects lubricating oil into the threaded engagement through the oil filling hole through the oil pipe to improve the lubrication effect and make the movable plate move more smoothly.

[0016] 2. The CNC machine tool slide column has one end of an iron baffle fixed to the slider by screws, and the other end is connected to a spring curled in a telescopic box. When the slider moves, the iron baffle is pulled to overcome the elastic force of the spring and pull it out. When sliding in the opposite direction, the iron baffle is pushed and the spring is retracted and the iron baffle is pulled back, so that the movable cavity is always isolated from the outside, which plays a dust-proof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a longitudinal sectional view of the structure of the utility model;

[0020] Figure 4 It is a transverse cross-sectional view of the structure of the utility model.

[0021] In the figure: 1. outer shell; 2. movable plate; 3. slider; 4. threaded rod; 5. bearing; 6. telescopic box; 7. oil tank; 101. T-slot; 102. movable cavity; 201. boss; 301. threaded hole; 302. oil filling hole; 401. keyway; 601. spring; 602. iron baffle; 603. fixing plate; 604. screw; 701; oil pipe; 702. oil filling hole. DETAILED DESCRIPTION

[0022] 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.

[0023] Example: See Figure 1 The utility model provides a technical solution: a CNC machine tool slide column.

[0024] Among them, T-slots 101 are opened on both sides of the top of the shell 1, a movable cavity 102 is opened in the middle position of the top of the shell 1, a movable plate 2 is arranged above the shell 1, bosses 201 are fixedly connected to the left and right sides of the bottom of the movable plate 2, a slider 3 is fixedly connected to the center position of the bottom of the movable plate 2, threaded holes 301 are opened on the left and right sides of the slider 3, an oil filling hole 302 is opened above the threaded hole 301, a threaded rod 4 is installed through the threaded hole 301, round holes are opened on the front and back sides of the shell 1 near the two side walls, bearings 5 ​​are installed in the round holes, and threaded rods 4 are installed in the bearings 5, oil tanks 7 are arranged on both sides of the shell 1, a refueling hole 702 is connected to the top of the oil tank 7, an oil pipe 701 is connected to the bottom of the oil tank 7, and the other end of the oil pipe 701 passes through the side wall of the shell 1 and is connected to the oil filling hole 302.

[0025] In this embodiment, the boss 201 can be embedded in the T-slot 101, and when the movable plate 2 moves, it plays a role of assisting the movement and preventing the movable plate 2 from deflecting. The oil filling hole 302 reaches directly above the threaded hole 301, and the oil filling hole 302 is connected by an oil pipe 701, and the lubricating oil in the oil tank 7 is poured into the oil filling hole 302, and the lubricating oil passes through the oil filling hole 302 and enters the threaded hole 301. Through the rotation of the threaded rod 4, the threaded hole 301 moves back and forth and makes the threaded meshing part of the two fully immersed in the lubricating oil, so that the meshing is more stable. At the same time, the lubricating oil leaves a layer of oil film on the surface of the threaded rod 4 and the threaded hole 301, isolating the air and playing a role of rust prevention. The oil pipe 701 is made of rubber material and has a sufficient length reserved so that it can move with the slider 3 without being separated from the oil filling hole 302. The inner ring of the bearing 5 can rotate with the threaded rod 4, and the outer ring is embedded in the housing 1 to fix the threaded rod 4. The lubricating oil in the oil tank 7 can be replenished by refueling in the oil filling hole 702.

[0026] Among them, a telescopic box 6 is arranged on the front and back of the shell 1, a clockwork spring 601 is installed inside the telescopic box 6, an iron baffle 602 is arranged at one end of the clockwork spring 601, and the other end of the iron baffle 602 extends out of the telescopic box 6 into the movable cavity 102 and is fixedly connected with a fixed plate 603, a hole is opened on the surface of the fixed plate 603, a screw 604 is rotatably installed in the hole, a hole is also opened at the corresponding position of the slider 3, and the fixed plate 603 is installed on the surface of the slider 3 by the screw 604.

[0027] In this embodiment, the iron baffle 602 is a thin iron sheet, one end of which is wound around the clockwork spring 601, and the other end is welded with a fixing plate 603, the fixing plate 603 and the iron baffle 602 are 90 degrees, and two holes are opened on the fixing plate 603, through which screws 604 are passed, and the screws 604 are rotatably installed on the slider 3, so that the iron baffle 602 is fixed to the slider 3, and the slider 3 is pulled outward to pull the iron baffle 602 out of the telescopic box 6, and the clockwork spring 601 is stretched, but when the slider 3 is pushed in the opposite direction, the clockwork spring 601 contracts to pull the iron baffle 602 back into the telescopic box, so that the active cavity 102 in front and behind the slider 3 is always covered with the iron baffle 602, so as to prevent oil mist, debris, etc. from falling into the active cavity during CNC machine tool processing and affecting the rotation of the threaded rod 4.

[0028] Wherein, key grooves 401 are formed at both ends of the threaded rod 4 .

[0029] In this embodiment, the key slot 401 can be connected to a motor or other rotating device to provide power for the threaded rod 4 to rotate.

[0030] Among them, the fuel tank 7 is provided with a timed refueling device.

[0031] In this embodiment, the use of lubricating oil needs to be increased according to the use of the equipment. When the equipment is not used for a long time, the lubricating oil consumption is low and there is no need for frequent oiling.

[0032] Among them, the surface of the movable plate 2 can be installed with other equipment that needs to be moved, such as a tool table.

[0033] In this embodiment, the use effect of the device is achieved by moving the movable plate 2 to drive the equipment on the movable plate 2.

[0034] Working principle: an external motor drives the threaded rod 4 to rotate, and the threaded rod 4 is engaged through two threaded holes 301, thereby driving the slider 3 to move forward or backward, and at the same time pulling the iron baffle 602 to separate the movable cavity 102 and the outside to prevent external oil mist and processing debris from splashing into the interior of the equipment. The oil tank 7 injects lubricating oil into the oil filling hole 302 through the oil pipe. The lubricating oil passes through the oil filling hole 302 and is injected between the threaded hole 301 and the threaded rod 4, thereby improving the lubrication effect and making the movable plate move more smoothly. At the same time, a layer of oil film is left on the surface to isolate the air and prevent rust.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] 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 CNC machine tool slide column, comprising a housing (1), characterized in that: T-shaped grooves (101) are provided on both sides of the top of the shell (1), a movable cavity (102) is provided in the middle of the top of the shell (1), a movable plate (2) is provided above the shell (1), bosses (201) are fixedly connected to the left and right sides of the bottom of the movable plate (2), a slider (3) is fixedly connected to the center of the bottom of the movable plate (2), threaded holes (301) are provided on the left and right sides of the slider (3), an oil injection hole (302) is provided above the threaded hole (301), and the threaded hole (301) is provided on the left and right sides of the slider (3). A threaded rod (4) is installed through the hole (301); circular holes are provided on the front and back sides of the housing (1) near the two side walls; bearings (5) are installed in the circular holes; threaded rods (4) are installed in the bearings (5); oil tanks (7) are provided on both sides of the housing (1); a refueling hole (702) is connected to the top of the oil tank (7); an oil pipe (701) is connected to the bottom of the oil tank (7); the other end of the oil pipe (701) passes through the side wall of the housing (1) and is connected to the oil filling hole (302).

2. A CNC machine tool slide column according to claim 1, characterized in that: A telescopic box (6) is provided on the front and back sides of the housing (1), a spring spring (601) is installed inside the telescopic box (6), an iron baffle (602) is provided at one end of the spring spring (601), the other end of the iron baffle (602) extends out of the telescopic box (6) into the movable cavity (102) and is fixedly connected to a fixing plate (603), a hole is provided on the surface of the fixing plate (603), a screw (604) is rotatably installed in the hole, a hole is also provided at a corresponding position of the slider (3), and the fixing plate (603) is installed on the surface of the slider (3) by means of the screw (604).

3. The CNC machine tool slide column according to claim 1, characterized in that: Key grooves (401) are formed at both ends of the threaded rod (4).

4. The CNC machine tool slide column according to claim 1, characterized in that: The oil tank (7) is provided with a timed refueling device.

5. The CNC machine tool slide column according to claim 1, characterized in that: A tool platform is installed on the surface of the movable plate (2).

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