Precise numerical control lathe positioning device

Abstract

The utility model discloses a precise numerical control lathe positioning device, which relates to the technical field of precise numerical control lathes and comprises a machine tool and a positioning component, a lifting screw rod is mounted in the machine tool, a positioning plate is mounted outside the lifting screw rod, a through hole is formed in the surface of the positioning plate, and the positioning component is arranged in the through hole. The positioning assemblies used for workpiece multi-point positioning are arranged on the side edge of the positioning plate, the number of the positioning assemblies is two, each positioning assembly comprises a side plate, an electric push rod and a positioning clamping block, and the electric push rods are installed on the surfaces of the side plates. According to the precise numerical control lathe positioning device, the positioning plate is used for placing a workpiece, the electric push rod controls movement of the positioning clamping blocks through stretching and retracting, the multiple sets of positioning clamping blocks clamp and position the workpiece on the two sides of the workpiece, the positioning clamping blocks can conduct surface multi-point-position clamping and fixing on the irregular workpiece, and the positioning firmness is improved; the situation that machining of the precision numerical control lathe is affected by unstable clamping due to the fact that the clamped face of an irregular workpiece is small is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of precision numerically controlled lathes, in particular to a positioning device for precision numerically controlled lathes. Background Art

[0002] The CNC machine tool positioning device is a type of machine tool tooling. The function of this positioning device is to quickly position the workpiece on the lathe to facilitate processing.

[0003] For example, the utility model with application number CN202122778991.4 relates to the technical field of lathe positioning devices, and discloses a precision CNC lathe positioning device. The utility model arranges a ball screw, a left support member, a right support member, a left nut seat, a right nut seat and a positioning block, and utilizes the mutual cooperation between them, so as to realize rapid positioning of the workpiece. The time required for positioning is short and the positioning is accurate. Secondly, it runs smoothly, clamps firmly, and is easy to operate, and work efficiency is improved. However, when the existing machine tool processes irregular workpieces, the positioning device has a small clamping surface when clamping the workpiece to a limit, which affects the machine tool stability of the workpiece, and then affects the subsequent processing of the workpiece.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a precision CNC lathe positioning device is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a precision CNC lathe positioning device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision CNC lathe positioning device, comprising a machine tool and a positioning assembly, a lifting screw is installed inside the machine tool, and a positioning plate is installed outside the lifting screw, and a through-hole is opened on the surface of the positioning plate. The positioning assembly used for multi-point positioning of the workpiece is arranged on the side of the positioning plate, and the number of positioning assemblies is set in two groups, the positioning assembly comprises a side plate, an electric push rod and a positioning clamp, and the surface of the side plate is installed with an electric push rod, and the output end of the electric push rod is installed with a positioning clamp.

[0007] Furthermore, auxiliary blocks are installed on both sides of the rear end of the positioning plate, and limiting rods are arranged inside the auxiliary blocks.

[0008] Furthermore, the auxiliary blocks and the limiting rods are provided in two groups, and the auxiliary blocks and the limiting rods are sleeve-connected.

[0009] Furthermore, a water diversion slope is provided in the middle of the machine tool, and a liquid discharge port is provided in the middle of the water diversion slope.

[0010] Furthermore, a filter assembly for filtering the processing coolant is arranged inside the lower liquid port, and the filter assembly includes a filter mesh plate and a slag collecting bag, and the slag collecting bag is installed at the lower end of the filter mesh plate.

[0011] Furthermore, the filter screen plate and the slag collecting bag are an integrated structure, and the filter screen plate and the lower liquid port are installed in a snap-fitting manner.

[0012] Furthermore, a coolant box is provided below the filter screen plate, and the coolant box is in the shape of a hollow rectangle.

[0013] Furthermore, an electric slide rail is installed at the upper end of the machine tool, and a processing head is installed at the lower end of the electric slide rail through an electric slider.

[0014] The utility model provides a precision CNC lathe positioning device, which has the following beneficial effects:

[0015] 1. The utility model uses a positioning plate to place the workpiece, and the electric push rod controls the movement of the positioning clamp by telescoping. Multiple groups of positioning clamps clamp and position the workpiece on both sides of the workpiece, and the positioning clamps can clamp and fix the irregular workpiece at multiple points on the surface, thereby increasing the positioning firmness and avoiding the irregular workpiece causing a small clamping surface, resulting in unstable clamping and affecting the processing of the precision CNC lathe. The perforations are used for the flow of processing coolant.

[0016] 2. The utility model drives the positioning assembly to move up and down by a lifting screw driven by a motor. The auxiliary block moves outside the limit rod as the positioning plate rises and falls, thereby increasing the adjustment stability. The water diversion slope serves to drain the processing coolant, and the filter screen serves to filter the processing coolant. The slag collecting bag collects the slag while filtering the processing coolant, thereby preventing the slag from clogging the filter screen and affecting the flow of the processing coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a precision CNC lathe positioning device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a positioning component of a precision CNC lathe positioning device of the utility model;

[0019] Figure 3 The utility model is a cross-sectional structural schematic diagram of a positioning device for a precision CNC lathe.

[0020] In the figure: 1. machine tool; 2. lifting screw; 3. positioning plate; 4. perforation; 5. positioning assembly; 501. side plate; 502. electric push rod; 503. positioning clamp; 6. auxiliary block; 7. limit rod; 8. water diversion slope; 9. lower liquid port; 10. filter assembly; 1001. filter screen plate; 1002. slag collecting bag; 11. coolant box; 12. electric slide rail; 13. processing head. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 2 As shown, a positioning device for a precision CNC lathe includes a machine tool 1 and a positioning assembly 5. A lifting screw 2 is installed inside the machine tool 1. The lifting screw 2 is driven by a motor to drive the positioning assembly 5 to move up and down, and a positioning plate 3 is installed outside the lifting screw 2. A perforation 4 is opened on the surface of the positioning plate 3. The perforation 4 is used for the flow of processing coolant. The positioning assembly 5 for multi-point positioning of the workpiece is arranged on the side of the positioning plate 3. The positioning plate 3 is used for placing the workpiece, and the number of positioning assemblies 5 is set in two groups. The positioning assembly 5 includes a side plate 501, an electric push rod 502 and a positioning clamp 503, and the surface of the side plate 501 is installed with an electric push rod 502. The electric push rod 502 is controlled by telescopic movement. In order to determine the movement of the positioning clamp 503, a positioning clamp 503 is installed at the output end of the electric push rod 502. Multiple groups of positioning clamps 503 clamp and position the workpiece on both sides of the workpiece, and the positioning clamp 503 can clamp and fix the irregular workpiece at multiple points on the surface, thereby increasing the positioning firmness and avoiding the irregular workpiece from having a small clamped surface, resulting in unstable clamping and affecting the processing of the precision CNC lathe. Auxiliary blocks 6 are installed on both sides of the rear end of the positioning plate 3. The auxiliary block 6 moves outside the limit rod 7 as the positioning plate 3 is raised and lowered, thereby increasing the adjustment stability, and a limit rod 7 is arranged inside the auxiliary block 6. There are two groups of auxiliary blocks 6 and limit rod 7, and the auxiliary block 6 and limit rod 7 are socket-connected.

[0023] like Figure 3As shown, a water diversion slope 8 is provided in the middle of the machine tool 1, and the water diversion slope 8 plays a role in diverting the processing coolant, and a lower liquid port 9 is provided in the middle of the water diversion slope 8, and a filter assembly 10 for filtering the processing coolant is arranged inside the lower liquid port 9, and the filter assembly 10 includes a filter screen plate 1001 and a slag collecting bag 1002, and the slag collecting bag 1002 is installed at the lower end of the filter screen plate 1001. The filter screen plate 1001 and the slag collecting bag 1002 are an integrated structure, and the filter screen plate 1001 plays a role in the processing coolant. The slag collecting bag 1002 collects the slag while filtering the processing coolant to prevent the slag from clogging the filter plate 1001 and affecting the flow of the processing coolant. The filter plate 1001 and the lower liquid port 9 are installed in a snap-fitting manner. A coolant box 11 is arranged below the filter plate 1001, and the shape of the coolant box 11 is a hollow rectangle. An electric slide rail 12 is installed at the upper end of the interior of the machine tool 1, and a processing head 13 is installed at the lower end of the electric slide rail 12 through an electric slider.

[0024] In summary, the precision CNC lathe positioning device is first based on Figure 1-Figure 3 In the structure shown in the figure, during processing, the workpiece is placed on the positioning plate 3 inside the machine tool 1, and then the electric push rod 502 is controlled to control the movement of the positioning clamp 503 by telescoping, so that multiple groups of positioning clamps 503 clamp and position the workpiece on both sides of the workpiece. When processing irregular workpieces, the positioning clamps 503 clamp and fix the irregular workpiece at multiple points on the surface to increase the positioning firmness, avoid the irregular workpiece causing a small clamping surface, resulting in unstable clamping and affecting the processing of the precision CNC lathe, and turn on the motor at the end of the lifting screw 2 to make the lifting screw 2 rotate. Control the lifting and lowering adjustment of the positioning plate 3. During adjustment, the auxiliary block 6 moves outside the limit rod 7 along with the lifting and lowering of the positioning plate 3 to increase the adjustment stability. During processing, the processing head 13 processes the surface of the workpiece, and the nozzle sprays processing coolant for cooling. The used coolant falls onto the filter plate 1001 through the perforation 4. The filter plate 1001 filters the processing coolant. The slag collecting bag 1002 collects the slag while filtering the processing coolant to prevent the slag from clogging the filter plate 1001 and affecting the flow of the processing coolant.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A positioning device for a precision CNC lathe, comprising a machine tool (1) and a positioning assembly (5), characterized in that: A lifting screw (2) is installed inside the machine tool (1), and a positioning plate (3) is installed outside the lifting screw (2), and a through hole (4) is opened on the surface of the positioning plate (3). The positioning assembly (5) used for multi-point positioning of the workpiece is arranged on the side of the positioning plate (3), and the number of positioning assemblies (5) is set in two groups. The positioning assembly (5) includes a side plate (501), an electric push rod (502) and a positioning clamp (503), and the electric push rod (502) is installed on the surface of the side plate (501), and the positioning clamp (503) is installed at the output end of the electric push rod (502).

2. A precision CNC lathe positioning device according to claim 1, characterized in that: Auxiliary blocks (6) are installed on both sides of the rear end of the positioning plate (3), and a limiting rod (7) is arranged inside the auxiliary block (6).

3. A precision CNC lathe positioning device according to claim 2, characterized in that: The auxiliary blocks (6) and the limiting rods (7) are provided in two groups, and the auxiliary blocks (6) and the limiting rods (7) are sleeve-connected.

4. A precision CNC lathe positioning device according to claim 1, characterized in that: A water diversion slope (8) is provided in the middle of the machine tool (1), and a liquid lowering port (9) is provided in the middle of the water diversion slope (8).

5. A precision CNC lathe positioning device according to claim 4, characterized in that: A filter assembly (10) for filtering the processing coolant is arranged inside the lower liquid port (9), and the filter assembly (10) comprises a filter screen plate (1001) and a slag collecting bag (1002), and the slag collecting bag (1002) is installed at the lower end of the filter screen plate (1001).

6. A precision CNC lathe positioning device according to claim 5, characterized in that: The filter screen plate (1001) and the slag collecting bag (1002) are an integrated structure, and the filter screen plate (1001) and the lower liquid port (9) are mounted in a snap-fitting manner.

7. A precision CNC lathe positioning device according to claim 6, characterized in that: A coolant box (11) is provided below the filter screen plate (1001), and the coolant box (11) is in the shape of a hollow rectangle.

8. The precision CNC lathe positioning device according to claim 1, characterized in that: An electric slide rail (12) is installed at the upper end of the interior of the machine tool (1), and a processing head (13) is installed at the lower end of the electric slide rail (12) via an electric slider.

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