A large bore lathe

Abstract

This utility model discloses a large-diameter lathe, including a bed, a headstock, a drive system, a cross slide, and a scale. The top of the bed is equipped with longitudinal guide rails; the headstock is fixed to one end of the bed by clamping bolts, and the internal spindle body is supported by bearings and connected to a three-jaw self-centering chuck; the drive system includes a three-phase motor and a frequency converter, driving the spindle through a belt drive mechanism; the cross slide consists of a longitudinal slide and a transverse slide, which are moved by lead screw drives; the bed and slide are equipped with a scale. Vibration damping pads are provided at the headstock connection; the belt drive mechanism includes multi-wedge pulleys and a tension adjustment device; the bed is a welded steel pipe structure filled with damping material. This utility model features low-frequency start-up, energy efficiency, vibration suppression, and high-precision positioning, making it suitable for small and medium-sized enterprises processing large-diameter workpieces.

Description

Technical Field

[0001] This utility model relates to the field of lathe technology, and in particular to a large-diameter lathe. Background Technology

[0002] Commonly available lathes on the market cannot start at low frequencies, have high requirements for circuitry, are bulky and cumbersome, are unusable in small spaces, have high power consumption and waste electrical resources due to their 5000W motors, are expensive, have small spindle holes that cannot handle large workpieces, and have large spindle holes that are particularly expensive. In the context of a general downturn in all industries, many people cannot afford them, making it difficult to rapidly develop private enterprises and the individual economy, and hindering their use by small and medium-sized enterprises. Utility Model Content

[0003] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a large-diameter lathe, including: a bed, with a longitudinal guide rail on the top; The spindle box is fixed to one end of the bed by bolts on both sides of the clamping plates. The spindle body is installed inside. The two ends of the spindle body are supported by two bearings, and the front end is connected to a three-jaw self-centering chuck. The drive system includes a three-phase motor and a frequency converter. The frequency converter is electrically connected to the three-phase motor, and the motor drives the main shaft to rotate through a belt drive mechanism. A cross slide table consists of a longitudinal slide table and a transverse slide table. The longitudinal slide table is longitudinally movable on a guide rail, and the transverse slide table is transversely movable on the longitudinal slide table. A scale is provided on both the bed and the longitudinal slide.

[0004] Furthermore, the connection between the spindle box and the bed is provided with shock-absorbing pads, and the clamping plate is locked with high-strength bolts.

[0005] Furthermore, the belt drive mechanism includes a multi-wedge pulley and a tension adjustment device for matching the speed ratio between the motor and the main shaft body.

[0006] Furthermore, the longitudinal slide is movably mounted on the longitudinal track of the bed via a first lead screw drive structure, and the transverse slide is movably mounted on the longitudinal slide via a second lead screw drive structure.

[0007] Furthermore, the steel pipe welded structure of the bed is filled with damping material to suppress vibration transmission.

[0008] Compared with the prior art, the technical solution of this utility model has the following technical effects: 1. Large-diameter machining capability: The spindle through-hole diameter is large (φ0mm in Example 2, adjustable design), which can clamp large workpieces and solve the problem of small spindle holes or expensive large-diameter equipment in traditional lathes.

[0009] 2. Energy saving and consumption reduction: The 1100W three-phase motor is paired with a frequency converter (single-phase input) to achieve low-frequency start-up, reduce the requirements on the circuit, and the energy consumption is only 22% of that of a traditional 5000W motor, which significantly saves electricity costs. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the large-diameter lathe described in this utility model; Explanation of icon numbers: Detailed Implementation

[0012] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0013] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0014] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "several" or "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. This utility model proposes a large-diameter lathe, aiming to design a large-diameter lathe that is simple and convenient to operate, compact in size, and energy-saving and emission-reducing.

[0017] The large-diameter lathe proposed in this utility model will be described below in specific embodiments: Example 1: A large-diameter lathe, such as Figure 1 As shown, it includes: a bed 10, with a longitudinal guide rail 11 on the top; The spindle box is bolted to one end of the bed 10 via two side clamps 21. Inside it is the spindle body 22, which is supported at both ends by two bearings 23 and connected to a three-jaw self-centering chuck 24 at the front end. The drive system includes a three-phase motor and a frequency converter. The frequency converter is electrically connected to the three-phase motor, and the motor drives the main shaft body 22 to rotate through a belt drive mechanism. The cross slide table consists of a longitudinal slide table 31 and a transverse slide table 32. The longitudinal slide table 31 is longitudinally movable on the guide rail, and the transverse slide table 32 is transversely movable on the longitudinal slide table 31. A scale 40 is provided on both the bed 10 and the longitudinal slide 31.

[0018] Specifically, scale 40 is a grating ruler.

[0019] Furthermore, the connection between the spindle box and the bed 10 is provided with shock-absorbing pads, and the clamping plate 21 is locked with high-strength bolts.

[0020] Furthermore, the belt drive mechanism includes a multi-ribbed pulley and a tension adjustment device for matching the speed ratio between the motor and the main shaft body 22.

[0021] Furthermore, the longitudinal slide 31 is movably mounted on the longitudinal track of the bed 10 via a first lead screw drive structure, and the transverse slide 32 is movably mounted on the longitudinal slide 31 via a second lead screw drive structure.

[0022] Furthermore, the steel pipe welded structure of the bed 10 is filled with damping material to suppress vibration transmission.

[0023] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A large-diameter lathe, characterized in that, include: The bed frame has longitudinal guide rails at the top; The spindle box is fixed to one end of the bed by bolts on both sides of the clamping plates. The spindle body is installed inside. The two ends of the spindle body are supported by two bearings, and the front end is connected to a three-jaw self-centering chuck. The drive system includes a three-phase motor and a frequency converter. The frequency converter is electrically connected to the three-phase motor, and the motor drives the main shaft to rotate through a belt drive mechanism. A cross slide table, comprising a longitudinal slide table and a transverse slide table, wherein the longitudinal slide table is longitudinally movably mounted on a guide rail, and the transverse slide table is laterally movably mounted on the longitudinal slide table; and A scale is provided on both the bed and the longitudinal slide.

2. The large-diameter lathe according to claim 1, characterized in that, The connection between the spindle box and the bed is equipped with shock-absorbing pads, and the clamping plate is locked with high-strength bolts.

3. The large-diameter lathe according to claim 1, characterized in that, The belt drive mechanism includes a multi-wedge pulley and a tension adjustment device, used to match the speed ratio between the motor and the main shaft body.

4. The large-diameter lathe according to claim 1, characterized in that, The longitudinal slide is movably mounted on the longitudinal track of the bed via a first lead screw drive structure, and the transverse slide is movably mounted on the longitudinal slide via a second lead screw drive structure.

5. The large-diameter lathe according to claim 1, characterized in that, The steel pipe welded structure of the bed is filled with damping material to suppress vibration transmission.

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