Linear guide rail micro-displacement compensation slider for numerical control machine tool

Abstract

The utility model relates to machine tool guide rail technical field, concretely is a kind of numerical control machine tool linear guide rail micro-displacement compensation slider, including slide rail including sliding table, and sliding table and slide rail sliding joint, box body is fixedly connected in sliding table one side, and box body inside is provided with the electronic level capable of detecting the levelness of sliding table, two support mechanisms are respectively fixedly connected in the opposite two side edges of sliding table bottom surface place.The utility model in the present application, the levelness of sliding table is detected by electronic level, two stepper motors are started to drive adjacent rotating cylinder to rotate by slide bar, so that the rotating cylinder drives adjacent bevel gear to rotate by adjacent two-way lead screw, so that the two-way lead screw drives support arm to rotate by internal thread ring, the height of adjacent U-shaped block is adjusted by adjusting the rotation angle of support arm, so as to adjust the levelness of sliding table by adjusting the height of opposite two sides of sliding table, improve the stability when sliding table moves.

Description

Technical Field

[0001] This utility model relates to the field of machine tool guideway technology, specifically a micro-displacement compensation slider for linear guideways of CNC machine tools. Background Technology

[0002] A CNC machine tool is an automated machine tool equipped with a program control system. It can automatically control the movement of the cutting tool to perform cutting operations on the workpiece. During the use of a CNC machine tool, the tool is moved by multiple linear axes to adjust its position. When moving the tool by linear axes, it is usually guided by guide rails. Most existing linear guide rails consist of a guide rail body, a ball screw, and a slide that can slide on the guide rail body driven by the ball screw. The cutting tool and other components are mostly mounted on the slide and move synchronously with the slide. However, after long-term use, the guide rail body will wear down. Since the slide is supported by the guide rail, it is easy for the slide to become slightly skewed when moving or positioning due to the wear of the guide rail. This can lead to skew of the cutting tool and other components, affecting the stability of machining and causing inconvenience. Utility Model Content

[0003] The purpose of this invention is to provide a micro-displacement compensation slider for linear guideways of CNC machine tools, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A micro-displacement compensation slider for a linear guideway in a CNC machine tool, comprising:

[0006] The system comprises a slide rail, a housing, and two support mechanisms for adjusting the level of the slide table. The slide rail includes a slide table, which is slidably engaged with the slide rail. The housing is fixedly connected to one side of the slide table, and an electronic level for detecting the levelness of the slide table is installed inside the housing. The two support mechanisms are fixedly connected to opposite sides of the bottom surface of the slide table. Each support mechanism includes two U-shaped blocks, the top surfaces of which are fixedly connected to the bottom surface of the slide table. Each U-shaped block has two arms rotatably connected to a support arm, and an internal threaded ring is rotatably connected between the two arms of each U-shaped block. A bidirectional lead screw is provided between the two internal threaded rings, and the bidirectional lead screw is screwed into the two internal threaded rings.

[0007] Furthermore, each of the two ends of any bidirectional lead screw is rotatably connected to a plate, each plate is provided with a connecting plate on top, one end of each connecting plate is fixedly connected to a slide table, each connecting plate is fixedly connected with a U-shaped rod on its bottom surface, each plate has slots on opposite sides, and each U-shaped rod has two arms that slide and engage with the two slots on the adjacent plate respectively.

[0008] Furthermore, it also includes two adjustment mechanisms, each fixedly connected to one of the two support mechanisms. The adjustment mechanisms include:

[0009] The rotating drum and two bevel gears are provided. A connecting ring is rotatably sleeved on the outer wall of the rotating drum. The outer wall of the connecting ring is fixedly connected to a plate on an adjacent support mechanism. The two bevel gears are respectively fixedly sleeved to the bottom end of the rotating drum and one end of an adjacent bidirectional lead screw, and the two bevel gears mesh with each other.

[0010] Furthermore, each rotating drum is equipped with a motor box above it, each motor box is fixedly connected to the adjacent connecting plate, each motor box contains a stepper motor, each stepper motor shaft is fixedly connected to a slide rod, and each slide rod is slidably sleeved inside the adjacent rotating drum.

[0011] Furthermore, each sliding rod has a prism-shaped structure.

[0012] Furthermore, each arm has a guide wheel rotatably connected to one end.

[0013] Furthermore, the length of the bidirectional lead screw is greater than the length of the slide table.

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

[0015] The levelness of the slide table is detected by an electronic level. Then, two stepper motors are started, which drive the adjacent rotating drum to rotate via a slide rod. This rotating drum drives the adjacent double-acting screw to rotate via adjacent bevel gears. The double-acting screw drives the two adjacent internal threaded rings to move towards or away from each other. This causes the internal threaded rings to drive the support arm to rotate. By adjusting the rotation angle of the support arm, the height of the adjacent U-blocks is adjusted, thereby adjusting the relative height of the two sides of the slide table and improving the levelness of the slide table during movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the positional relationship between the support mechanism and the adjustment mechanism in this utility model;

[0018] Figure 3 This is a schematic diagram of the support mechanism and adjustment mechanism in this utility model;

[0019] Figure 4 This is an exploded view of the support mechanism and adjustment mechanism in this utility model.

[0020] In the diagram: 100, slide rail; 110, slide table; 200, housing; 300, support mechanism; 310, U-shaped block; 320, support arm; 321, guide wheel; 322, internal threaded ring; 330, double-acting lead screw; 331, plate; 340, connecting plate; 341, U-shaped rod; 400, adjusting mechanism; 410, rotating drum; 420, bevel gear; 430, motor housing; 440, slide rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 In this embodiment of the present invention, a micro-displacement compensation slider for a linear guide of a CNC machine tool includes:

[0023] The slide rail 100, the housing 200, and two support mechanisms 300 that can adjust the level of the slide table 110 are included. The slide rail 100 includes the slide table 110, and the slide table 110 is slidably engaged with the slide rail 100. The housing 200 is fixedly connected to one side of the slide table 110, and an electronic level that can detect the level of the slide table 110 is installed inside the housing 200. The two support mechanisms 300 are respectively fixedly connected to the opposite sides of the bottom surface of the slide table 110. The support mechanism 300 includes two U-shaped blocks 310, and the top surfaces of the two U-shaped blocks 310 are fixedly connected to the bottom surface of the slide table 110. Each U-shaped block 310 has two arms rotatably connected to a support arm 320. Each U-shaped block 310 has two arms rotatably connected to an internal threaded ring 322. A bidirectional lead screw 330 is provided between the two internal threaded rings 322, and the bidirectional lead screw 330 is screwed into the two internal threaded rings 322.

[0024] Specifically, the slide rail 100 is an existing linear guide rail. The slide table 110 is driven to move on the slide rail 100 by a ball screw. An electronic level can detect the levelness of the slide table 110. When the slide table 110 is tilted, the bidirectional screw 330 on the two support mechanisms 300 can be rotated. The bidirectional screw 330 is a forward and reverse threaded screw. When the bidirectional screw 330 rotates, it can drive two adjacent internal threaded rings 322 to move towards each other or away from each other. The movement of the internal threaded rings 322 drives the adjacent support arms 320 to rotate synchronously. Thus, the support arms 320 and the adjacent U-shaped blocks 310 support the slide table 110. By adjusting the rotation angle of the support arms 320 on the two support mechanisms 300, the height of the adjacent U-shaped blocks 310 can be adjusted, thereby adjusting the overall levelness of the slide table 110 and improving the stability of the slide rail 100 when it moves.

[0025] Example 1

[0026] like Figure 3-4 As shown, in this embodiment, both ends of any bidirectional lead screw 330 are rotatably connected to a plate 331, a connecting plate 340 is provided on the top of any plate 331, one end of any connecting plate 340 is fixedly connected to the slide table 110, a U-shaped rod 341 is fixedly connected to the bottom surface of any connecting plate 340, and slots are provided on opposite sides of any plate 331. The two arms of any U-shaped rod 341 are respectively slidably engaged in the two slots on the adjacent plate 331.

[0027] In this embodiment, by using the U-shaped rod 341 on the connecting plate 340 to be engaged in the slot on the plate 331, the plate 331 is limited to sliding only up and down, thereby limiting the position of the bidirectional lead screw 330 by the plate 331, making the bidirectional lead screw 330 more stable when rotating.

[0028] like Figure 3-4 As shown, in this embodiment, two adjustment mechanisms 400 are also included, and the two adjustment mechanisms 400 are respectively fixedly connected to the two support mechanisms 300. The adjustment mechanism 400 includes:

[0029] A rotating drum 410 and two bevel gears 420 are provided. A connecting ring is rotatably sleeved on the outer wall of the rotating drum 410. The outer wall of the connecting ring is fixedly connected to a plate 331 on the adjacent support mechanism 300. The two bevel gears 420 are respectively fixedly sleeved at the bottom end of the rotating drum 410 and one end of the adjacent bidirectional lead screw 330. The two bevel gears 420 mesh with each other. A motor box 430 is provided above each rotating drum 410. Each motor box 430 is fixedly connected to the adjacent connecting plate 340. A stepper motor is provided inside each motor box 430. The motor shaft of each stepper motor is fixedly connected to a slide rod 440. Each slide rod 440 is slidably sleeved inside the adjacent rotating drum 410. Each slide rod 440 is a prismatic structure.

[0030] In practice, two stepper motors are started using a controller. The holes inside the slide bar 440 and the rotating drum 410 are prismatic, so that the slide bar 440 can drive the rotating drum 410 to rotate synchronously. The stepper motor drives the adjacent rotating drum 410 to rotate through the slide bar 440, so that the rotating drum 410 drives the adjacent bidirectional lead screw 330 to rotate through two adjacent bevel gears 420, thereby adjusting the rotation angle of the support arm 320 on the two support mechanisms 300. This makes it easy for the user to adjust the rotation angle of the support arm 320 by rotating the bidirectional lead screw 330.

[0031] Example 2

[0032] Based on Embodiment 1, the guide wheel 321 is used to facilitate the movement of the support arm 320 with the slide table 110.

[0033] like Figure 2-3 As shown, in this embodiment, each arm 320 is rotatably connected to a guide wheel 321 at one end, and the length of the bidirectional lead screw 330 is greater than the length of the slide table 110.

[0034] In practice, the guide wheel 321 is used to make the support arm 320 move more smoothly with the slide table 110, and the length of the bidirectional lead screw 330 is greater than the length of the slide table 110, so that there is enough distance to drive the internal thread ring 322 to move, thereby increasing the rotation angle of the adjustable support arm 320.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A micro-displacement compensation slider for linear guideways in CNC machine tools, characterized in that, include: The slide rail (100) includes a slide table (110), and the slide table (110) and the slide rail (100) are slidably engaged; The box body (200) is fixedly connected to one side of the slide table (110), and an electronic level is installed inside the box body (200); Two support mechanisms (300) are fixedly connected to the opposite sides of the bottom surface of the slide table (110). The support mechanism (300) includes two U-shaped blocks (310), and the top surfaces of the two U-shaped blocks (310) are fixedly connected to the bottom surface of the slide table (110). Each U-shaped block (310) has a support arm (320) rotatably connected to both arms. Each U-shaped block (310) has an internal threaded ring (322) rotatably connected between the two arms. A bidirectional screw (330) is provided between the two internal threaded rings (322), and the bidirectional screw (330) is screwed into the two internal threaded rings (322).

2. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 1, characterized in that, Each arm (320) has a guide wheel (321) rotatably connected to one end.

3. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 2, characterized in that, Each of the two ends of the bidirectional lead screw (330) is rotatably connected to a plate (331), and a connecting plate (340) is provided on the top of each plate (331). One end of each connecting plate (340) is fixedly connected to the slide table (110). A U-shaped rod (341) is fixedly connected to the bottom surface of each connecting plate (340). Each plate (331) has slots on opposite sides. The two arms of each U-shaped rod (341) are respectively slidably engaged in the two slots on the adjacent plate (331).

4. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 3, characterized in that, The length of the bidirectional lead screw (330) is greater than the length of the slide (110).

5. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 3 or 4, characterized in that, It also includes two adjustment mechanisms (400), and the two adjustment mechanisms (400) are respectively fixedly connected to two support mechanisms (300), wherein the adjustment mechanism (400) includes: The rotating cylinder (410) has a connecting ring rotatably sleeved on its outer side wall, and the outer side wall of the connecting ring is fixedly connected to a plate (331) on an adjacent support mechanism (300); Two bevel gears (420) are fixedly sleeved to the bottom end of the rotating drum (410) and one end of the adjacent bidirectional lead screw (330), respectively, and the two bevel gears (420) mesh with each other.

6. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 5, characterized in that, Each rotating drum (410) is provided with a motor box (430) above it. Each motor box (430) is fixedly connected to the adjacent connecting plate (340). Each motor box (430) is provided with a stepper motor. The motor shaft of each stepper motor is fixedly connected to a slide rod (440). Each slide rod (440) is slidably sleeved inside the adjacent rotating drum (410).

7. The micro-displacement compensation slider for linear guideways of CNC machine tools according to claim 6, characterized in that, Each slide bar (440) is a prismatic structure.

Images