High-precision numerical control double-wheel spinning machine

Abstract

The utility model discloses a high-precision numerical control double-wheel spinning machine which comprises a lathe bed, a spindle box, a carriage and a grinding cutter set, the lathe bed is provided with a spindle motor and a first guide rail, the carriage is connected to the first guide rail in a sliding mode, and the spindle motor is connected with the carriage through a lead screw so as to drive the carriage to slide along the first guide rail; the carriage is provided with a second guide rail, grinding cutter sets are installed at the two ends of the second guide rail, the grinding cutter sets are independently provided with carriage motors, and the carriage motors are connected with the grinding cutter sets through lead screws so as to drive the grinding cutter sets to move towards the spindle box. An extension seat is arranged on the side portion of the spindle box and provided with a base plate, the base plate is slidably connected with a cylinder seat, the cylinder seat is provided with a cylinder, the movable end of the cylinder is provided with a front side plate, the front side plate is provided with a machining accessory, and the machining accessory is pushed by the cylinder to move towards the spindle box. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

[Technical Field]

[0001] This utility model mainly relates to a high-precision CNC double-wheel spinning machine. [Background Technology]

[0002] Existing spinning machines are mostly modified lathes, where workers push a mandrel forward to perform machining. The spindle speed and feed rate are entirely controlled manually, and the machining quality is highly dependent on the operator's skill. Operators rely entirely on their intuition to determine the shape of the workpiece, leaving obvious marks on the machined surface and resulting in poor surface finish. The speed matching between the spindle and the spinning wheel cannot be guaranteed, making it impossible to ensure the correct workpiece shape. Furthermore, machining often uses a single grinding tool, preventing multi-directional machining, which compromises workpiece precision and leads to poor machining quality. Therefore, we have improved the spinning machine structure, proposing a multi-directional machining design. [Utility Model Content]

[0003] To solve at least one of the above problems, this utility model proposes a new structural solution. The high-precision CNC double-wheel spinning machine adopts the following technical solution:

[0004] A high-precision CNC double-wheel spinning machine includes a bed, a spindle box, a slide, and a grinding tool assembly. The bed is equipped with a spindle motor and a first guide rail. The slide is slidably connected to the first guide rail. The spindle motor is connected to the slide through a lead screw to drive the slide to slide along the first guide rail.

[0005] The slide is equipped with a second guide rail, and grinding tool sets are installed at both ends of the second guide rail. Each grinding tool set is independently equipped with a slide motor, which is connected to the grinding tool set through a lead screw to drive the grinding tool set to move towards the spindle box.

[0006] The spindle box has an extension seat on its side, a pad is installed on the extension seat, a cylinder seat is slidably connected to the pad, a cylinder is installed on the cylinder seat, a front side plate is provided on the movable end of the cylinder, and a machining part is installed on the front side plate. The machining part is pushed to the spindle box by the cylinder.

[0007] Preferably, the grinding tool set includes a turret support, a tool holder, and grinding tools. The grinding tool set is slidably connected to the second guide rail via the turret support, and the tool holder is mounted on the top of the turret support.

[0008] Preferably, the top of the turret support is provided with locking holes, and the tool holder is fixed to the turret support by bolts.

[0009] Preferably, the tool holder has a tool disc at the front end, and the tool disc has several mounting positions around it; the grinding tool includes a main frame and a tool, the front end of the main frame is fixed to the mounting position, and the tool is fixed to the rear end of the main frame.

[0010] Preferably, the end of the main frame extends outward at an angle relative to its beginning.

[0011] Preferably, the extension seat has several connecting holes, and the pad has corresponding connecting holes. The pad and the extension seat are a detachable assembly structure, and the connecting holes at different positions of the pad and the extension seat are connected to adjust the position of the pad.

[0012] Preferably, the pad has a strip groove, and the cylinder seat is connected to the pad by bolts, with the bolts passing through the strip groove and connecting to the cylinder seat.

[0013] The beneficial effects of this utility model compared with the prior art are:

[0014] In this structure, the workpiece is fixed on the flange of the spindle, and the grinding tool sets at both ends of the second guide rail move towards the workpiece. Simultaneously, the machining accessories on the front side plate are moved towards the workpiece by a cylinder. Through multi-position tool cutting, precision machining can be achieved from all directions. The pad, cylinder seat, and tool holder all adopt a detachable structure, offering advantages such as simple structure, compact fit, and reasonable design; therefore, it is a product with superior technical and economic performance. [Attached Image Description]

[0015] Figure 1 A schematic diagram of a high-precision CNC double-wheel spinning machine provided in a preferred embodiment of this utility model;

[0016] Figure 2 This is a partial structural diagram of the high-precision CNC double-wheel spinning machine provided in the preferred embodiment of this utility model;

[0017] Figure 3 This is an exploded view of the grinding tool assembly in a preferred embodiment of the present invention.

Detailed Implementation Methods

[0018] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] The preferred embodiment provided by this utility model is as follows: Figures 1-3 As shown, a high-precision CNC double-wheel spinning machine includes a bed 1, a spindle box 2, a slide 3, and a grinding tool set 4. The spindle box 2 has a spindle 21, the end of which extends out of the spindle box 2. A flange 22 is installed at the end of the spindle for mounting the workpiece.

[0022] The bed 1 is equipped with a spindle motor 11 and a first guide rail 12. The slide 3 is slidably connected to the first guide rail 12. The spindle motor 11 is connected to the slide 3 via a lead screw to drive the slide 3 to slide along the first guide rail 12. The slide 3 is equipped with a second guide rail 31. Grinding tool sets 4 are installed at both ends of the second guide rail 31. The grinding tool sets 4 are independently equipped with a slide motor 41. Both the spindle motor and the slide motor are conventional motors. The slide motor 41 is connected to the grinding tool sets 4 via a lead screw to drive the grinding tool sets 4 to move towards the spindle box 2. The side of the spindle box 2 is equipped with an extension seat 23. The extension seat 23 is equipped with a pad 24. The pad 24 is slidably connected to a cylinder seat 26. The cylinder seat 26 is equipped with a cylinder. The movable end of the cylinder is equipped with a front side plate 27. The front side plate 27 is equipped with machining accessories. The machining accessories are selected according to requirements. The machining accessories are pushed by the cylinder to move towards the spindle box 2. The front panel 27 is provided with a plug hole 28 for connecting processing accessories. The side of the front panel is provided with a through hole 29. Screws are inserted into the through hole and abut against the processing accessories to fix the processing accessories to the front panel. There are several plug holes to accommodate the installation of different processing accessories.

[0023] The grinding tool assembly 4 includes a turret support 42, a tool holder 43, and grinding tools 44. A slide is provided at the bottom of the turret support 42. The grinding tool assembly 4 is slidably connected to the second guide rail 31 via the turret support 42. The tool holder 43 is mounted on the top of the turret support 42.

[0024] The top of the turret support 42 is provided with locking holes 45, and the tool holder 43 is fixed to the turret support 42 by bolts. The tool holder 43 can adjust the position of the grinding tool 44 by connecting the locking holes 45 at different positions.

[0025] The tool holder 43 has a tool disc 46 at its front end, and the tool disc 46 has several mounting positions 47 around its perimeter. The grinding tool 44 includes a main frame 48 and a tool 49. The front end of the main frame 48 is fixed to the mounting position 47, and the tool 49 is fixed to the rear end of the main frame 48. The rear end of the main frame 48 extends outward at an angle relative to its front end, ensuring that the workpiece only contacts the tool 49 during machining, thus preventing collision damage to the tool holder 43.

[0026] The extension seat 23 has several connecting holes 231, and the pad 24 has corresponding connecting holes 231. The pad 24 and the extension seat 23 are a detachable assembly structure. The pad 24 and the extension seat 23 are connected to the connecting holes 231 at different positions to adjust the position of the pad 24. The pad 24 has a strip groove 232, and the cylinder seat 26 is connected to the pad 24 by bolts. The bolts pass through the strip groove 232 and are connected to the cylinder seat 26. By sliding the connecting holes 231 of the extension seat 23 and the pad 24 along the strip groove 232, the position of the cylinder seat 26 can be adjusted to adapt to the processing of workpieces of different sizes.

[0027] Workflow: The workpiece is fixed on the flange of the spindle, and the grinding tool sets at both ends of the second guide rail are moved towards the workpiece. At the same time, the machining accessories on the front side plate are moved towards the workpiece by a cylinder. Through multi-position tool cutting, precision machining can be achieved from all directions. The pad, cylinder seat, and tool holder all adopt a detachable structure, which has extremely high flexibility and makes it easy to refine the tool position according to the requirements of the workpiece.

[0028] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A high-precision numerical control double-wheel spinning machine, characterized in that: It includes a bed, a main shaft box, a carriage, a grinding tool group, the bed is provided with a main shaft motor and a first guide rail, the carriage is slidably connected to the first guide rail, the main shaft motor is connected to the carriage through a screw rod to drive the carriage to slide along the first guide rail; The carriage is provided with a second guide rail, the two ends of the second guide rail are both provided with a grinding tool group, the grinding tool group is independently provided with a carriage motor, the carriage motor is connected to the grinding tool group through a screw rod to drive the grinding tool group to move towards the main shaft box; The side of the main shaft box is provided with an extension seat, the extension seat is provided with a pad plate, the pad plate is slidably connected to a cylinder seat, the cylinder seat is provided with a cylinder, the movable end of the cylinder is provided with a front side plate, the front side plate is provided with a machining accessory, the machining accessory is pushed by the cylinder to move towards the main shaft box.

2. The high-precision numerical control double-wheel spinning machine according to claim 1, characterized in that: The grinding tool group comprises a tool tower support, a tool holder seat and a grinding tool, the grinding tool group is slidably connected to the second guide rail through the tool tower support, and the tool holder seat is installed at the top end of the tool tower support.

3. The high-precision numerical control double-wheel spinning machine according to claim 2, characterized in that: The top end of the tool tower support is provided with a locking hole, and the tool holder seat is fixed to the tool tower support through bolts.

4. The high-precision numerical control double-wheel spinning machine according to claim 2, characterized in that: The front end of the tool holder seat is provided with a tool disc, and the tool disc is annularly provided with a plurality of mounting positions; the grinding tool comprises a main frame and a tool, the first end of the main frame is fixed to the mounting position, and the tool is fixed to the tail end of the main frame.

5. The high-precision CNC double-wheel spinning machine according to claim 4, characterized in that: The tail end of the main frame extends outwardly relative to the first end.

6. The high-precision CNC double-wheel spinning machine of claim 1, wherein: The extension seat is provided with a plurality of connecting holes, the pad plate is correspondingly provided with connecting holes, the pad plate and the extension seat are in a split assembly structure, and the connecting holes at different positions of the pad plate and the extension seat are connected to adjust the position of the pad plate.

7. The high-precision CNC double-wheel spinning machine according to claim 6, characterized in that: The pad plate is provided with a strip-shaped groove, the cylinder seat is connected to the pad plate through bolts, and the bolts are connected to the cylinder seat through the strip-shaped groove.

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