Ram assembly of machine tool

Abstract

The utility model discloses a machine ram assembly which comprises a stand column, the bottom end of the stand column is in threaded connection with a bottom plate, a bearing seat is arranged in the center of the bottom plate, a bearing is arranged in the bearing seat, the upper surface of the stand column is in threaded connection with a motor base, and the upper surface of the motor base is fixedly connected with a motor. The output end of the motor is fixedly connected with a lead screw, the outer surface of the side, away from the motor, of the lead screw is fixedly connected with a bearing, the bearing comprises an inner ring and an outer ring, the inner ring is fixedly connected to the outer surface of the lead screw, the outer ring is fixedly connected to the inner wall of the bearing seat, and balls are arranged between the outer ring and the inner ring. A plurality of guide rods are fixedly connected to the upper surface of the bottom plate, the ends, away from the bottom plate, of the guide rods are fixedly connected to the top ends of the inner walls of the stand columns, sliding blocks are movably connected to the outer surfaces of the guide rods and the outer surfaces of the lead screws, and a plurality of first screw holes are formed in the outer surfaces of the sliding blocks. By means of the structure, accurate control over the position of the sliding block is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool manufacturing, in particular to a machine tool ram assembly. Background Art

[0002] The machine tool ram refers to a component on the machine tool that can move along a specific track, usually used to support and move workpieces or tools. It plays the role of supporting, positioning and transmitting power in the machine tool structure. The machine tool ram is usually composed of guide rails, guide rail supports, guide rail sliders and transmission mechanisms. The guide rails are responsible for providing sliding tracks, the guide rail supports are fixed on the machine tool body to support the guide rails, the guide rail sliders are installed on the ram and cooperate with the guide rails, and the transmission mechanism provides power to move the ram along the guide rails.

[0003] When applying for the present invention, the applicant found through search that a Chinese patent disclosed a "new type of machine tool slide assembly", and its application number is "CN202021589142.3". The patent mainly uses a column, a guide rail arranged on the column, and a slider arranged on the guide rail and can slide on the guide rail. The guide rail includes an inner guide rail and an outer guide rail. Slide grooves are arranged at both ends of the outer guide rail. The two ends of the outer guide rail extend outward and curl inward to form a hook groove. A hook-shaped slide plate is fixed on the slider. The hook-shaped slide plate is arranged in the slide groove and one end of the hook-shaped slide plate is inserted into the hook groove. A pulley is arranged at the lower end of the hook-shaped slide plate, and the pulley is fixed to the bottom of the hook-shaped slide plate through a mounting bracket.

[0004] However, the device cannot achieve precise electric control, and there may be slight fluctuations or instability in the position of the slider, which will cause position deviations of the workpiece or unstable processing quality during the processing. This situation is particularly obvious in situations where high-precision processing is required, because even a slight position deviation may cause deviations in the size or shape of the workpiece, thereby affecting the quality and accuracy of the entire processing result; therefore, the application of machine tool slide assemblies that cannot accurately control the position of the slider by electric power is subject to certain limitations in the field of high-precision processing, and other methods or technologies are needed to improve processing accuracy and stability.

[0005] To this end, we propose a machine tool slide assembly. Utility Model Content

[0006] The utility model provides a machine tool slide ram assembly, which can accurately control the position of a slide block by electric power.

[0007] The cam is provided with a toothed plate, the toothed plate being provided with a toothed plate at the bottom end thereof and the toothed plate being provided with a toothed plate at the bottom end thereof.

[0008] According to the machine tool slide assembly, the size of the inner ring of the bearing is consistent with the diameter of the screw rod, and the size of the outer ring of the bearing is consistent with the inner diameter of the bearing seat.

[0009] According to the machine tool slide assembly, a plurality of second screw holes are formed on the outer surface of the motor base, and the second screw holes are distributed at the four corners of the motor.

[0010] According to the machine tool slide assembly, a plurality of screw holes are provided at the top end of the column, and the positions and sizes of the screw holes are consistent with those of the second screw holes.

[0011] According to the machine tool slide assembly, a circular opening is provided at the top of the column, and the diameter of the opening is consistent with that of the screw rod.

[0012] According to the machine tool slide assembly, a screw hole is formed on the slider, and guide holes are formed on both sides of the screw hole.

[0013] According to the machine tool slide assembly, the diameter of the screw rod hole is consistent with the diameter of the screw rod, and the diameter of the guide hole is consistent with the diameter of the guide rod.

[0014] The beneficial effects of the utility model are as follows: the stability and accuracy of the slide are ensured through the threaded connection between the bottom end of the column and the bottom plate and the setting of the bearing seat; the movement of the motor output can be smoothly transmitted to the slider through the cooperation of the bearing in the bearing seat and the screw rod, thereby ensuring the stability and accuracy of the slider during sliding; the motor fixedly connected to the motor base and the screw rod and bearing cooperating therewith can realize precise control of the position of the slider, and improve the positioning accuracy of the workpiece during processing; the design of the guide rod and the guide rail groove makes the slider more stable in the vertical direction and reduces the position deviation caused by vibration or external force interference; the multiple first screw holes on the slider provide convenience for the installation of other equipment, and can be flexibly adjusted and fixed according to specific processing requirements; the circular opening at the top of the column and the guide holes and screw rod holes on the slider further enhance the connection stability and movement accuracy between the slider components.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a three-dimensional diagram of a machine tool ram assembly of the utility model;

[0018] Figure 2 It is a cross-sectional view of a machine tool ram assembly of the utility model;

[0019] Figure 3 This is a top view of a machine tool ram assembly of the utility model;

[0020] Figure 4 The utility model is a top view of a slider of a machine tool ram assembly.

[0021] Legend:

[0022] 1. Column; 2. Bottom plate; 3. Slider; 4. Motor; 5. First screw hole; 6. Motor base; 7. Guide rod; 8. Screw rod; 9. Bearing seat; 10. Bearing; 11. Second screw hole; 12. Slide groove; 13. Guide hole; 14. Screw rod hole; 15. Guide rail groove. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Example

[0025] Reference Figures 1 to 4 The utility model embodiment is a machine tool ram assembly, which includes a column 1, the bottom end of the column 1 is threadedly connected to a bottom plate 2, a bearing seat 9 is provided at the center of the bottom plate 2, a bearing 10 is provided inside the bearing seat 9, the upper surface of the column 1 is threadedly connected to a motor base 6, a motor 4 is fixedly connected to the upper surface of the motor base 6, a screw rod 8 is fixedly connected to the output end of the motor 4, and a bearing 10 is fixedly connected to the outer surface of the screw rod 8 away from the motor 4. The bearing 10 includes an inner ring and an outer ring, the inner ring is fixedly connected to the outer surface of the screw rod 8, and the outer ring It is fixedly connected to the inner wall of the bearing seat 9, and a ball bearing is arranged between the outer ring and the inner ring. A plurality of guide rods 7 are fixedly connected to the upper surface of the bottom plate 2, and one end of the guide rod 7 away from the bottom plate 2 is fixedly connected to the top of the inner wall of the column 1. The outer surfaces of the guide rods 7 and the screw rod 8 are movably connected with a slider 3, and a plurality of first screw holes 5 are opened on the outer surface of the slider 3. Guide rail grooves 15 are arranged on both sides of the slider 3, and a slide groove 12 is arranged inside the column 1. The column 1, the bottom plate 2 and the guide rod 7 are all made of high-strength steel to improve the durability and bearing capacity of the entire structure.

[0026] The inner ring of the bearing 10 is the same size as the diameter of the screw rod 8, and the outer ring of the bearing 10 is the same size as the inner diameter of the bearing seat 9. The inner and outer rings of the bearing 10 are made of stainless steel to improve corrosion resistance and wear resistance, and are suitable for long-term high-speed rotation without excessive wear.

[0027] The outer surface of the motor base 6 is provided with a plurality of second screw holes 11, which are distributed at the four corners of the motor 4. The design of the second screw holes 11 enables the motor base 6 to be quickly assembled and unassembled, facilitating the maintenance and replacement of the motor 4, while providing a stable installation platform to prevent vibration during operation.

[0028] A plurality of screw holes are formed at the top of the column 1 , and the positions and sizes of the screw holes are consistent with those of the second screw holes 11 .

[0029] A circular opening is provided at the top of the column 1, and the diameter of the opening is consistent with the screw rod 8. The circular opening is designed as a quick interface that is easy to install and disassemble, which facilitates the replacement and maintenance of the screw rod 8, and a reinforcement ring is provided on the edge of the opening to prevent material fatigue.

[0030] A screw hole 14 is formed on the slider 3 , and guide holes 13 are formed on both sides of the screw hole 14 .

[0031] The diameter of the screw hole 14 is consistent with the diameter of the screw 8, and the diameter of the guide hole 13 is consistent with the diameter of the guide rod 7. The inner walls of the screw hole 14 and the guide hole 13 are provided with lubricating oil channels to continuously supply lubricating oil, reduce wear and maintain smooth operation, especially under high load and high speed conditions.

[0032] Working principle: First, when the external power supply outputs the rotational force to the motor 4, the rotational motion of the motor 4 is converted into linear motion through the cooperation of the screw rod 8 and the bearing 10, so that the slider 3 can move up and down along the column 1. The bearing 10 is fixedly connected to one side of the screw rod 8, and the bearing 10 moves together with the screw rod 8. The rotation speed and direction of the screw rod 8 are controlled by the rotation of the motor 4, so as to accurately control the position of the slider 3 on the column 1. A plurality of guide rods 7 are fixedly connected to the bottom plate 2, and the guide rod 7 is fixedly connected to the top of the inner wall of the column 1. The guide groove 15 of the slider 3 cooperates with the guide rod 7. The fixation of the guide rod 7 makes the movement of the slider 3 in the vertical direction more precise. Stable, reducing the position deviation caused by vibration or external force interference, the circular opening at the top of the column 1 is consistent with the diameter of the screw 8, through this opening, the screw 8 can rotate freely in the column 1, realizing the vertical movement of the slider 3, the slider 3 is provided with a screw hole 14 and a guide hole 13, the screw hole 14 is consistent with the diameter of the screw 8, the guide hole 13 is consistent with the diameter of the guide rod 7, the screw 8 passes through the screw hole 14, and the slider 3 is moved up and down by connecting with the bearing 10, and the guide hole 13 cooperates with the guide rod 7 to ensure the stable movement of the slider 3 in the vertical direction, and the outer surface of the slider 3 is provided with a plurality of first screw holes 5 for installing other equipment.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A machine tool ram assembly, comprising a column (1), characterized in that: The bottom end of the column (1) is threadedly connected to a base plate (2), a bearing seat (9) is provided at the center of the base plate (2), a bearing (10) is provided inside the bearing seat (9), the upper surface of the column (1) is threadedly connected to a motor base (6), the upper surface of the motor base (6) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a screw rod (8), the outer surface of the screw rod (8) away from the motor (4) is fixedly connected to a bearing (10), the bearing (10) comprises an inner ring and an outer ring, the inner ring is fixedly connected to the screw rod (8), the outer ring is fixedly connected to the inner wall of the bearing seat (9), a ball bearing is arranged between the outer ring and the inner ring, a plurality of guide rods (7) are fixedly connected to the upper surface of the base plate (2), one end of the guide rod (7) away from the base plate (2) is fixedly connected to the top of the inner wall of the column (1), the outer surfaces of the guide rods (7) and the screw rod (8) are movably connected with a slider (3), a plurality of first screw holes (5) are opened on the outer surface of the slider (3), guide rail grooves (15) are arranged on both sides of the slider (3), and a slide groove (12) is arranged inside the column (1).

2. A machine tool ram assembly according to claim 1, characterized in that: The size of the inner ring of the bearing (10) is consistent with the diameter of the screw rod (8), and the size of the outer ring of the bearing (10) is consistent with the inner diameter of the bearing seat (9).

3. A machine tool ram assembly according to claim 1, characterized in that: The outer surface of the motor base (6) is provided with a plurality of second screw holes (11), and the second screw holes (11) are distributed at the four corners of the motor (4).

4. A machine tool ram assembly according to claim 3, characterized in that: A plurality of screw holes are provided at the top end of the column (1), and the positions and sizes of the screw holes are consistent with those of the second screw holes (11).

5. The machine tool ram assembly according to claim 1, characterized in that: A circular opening is provided at the top of the column (1), and the diameter of the opening is consistent with that of the screw rod (8).

6. A machine tool ram assembly according to claim 1, characterized in that: The slider (3) is provided with a screw rod hole (14), and guide holes (13) are provided on both sides of the screw rod hole (14).

7. A machine tool ram assembly according to claim 6, characterized in that: The diameter of the screw rod hole (14) is consistent with the diameter of the screw rod (8), and the diameter of the guide hole (13) is consistent with the diameter of the guide rod (7).

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