CN204294941U - A kind of floating type main shaft material pressing device - Google Patents

Abstract

The utility model relates to a floating spindle pressing device, which comprises a spindle motor, a component fixing seat, a top cover, a base and a bottom cover. The spindle motor is installed on the upper surface of the component fixing seat, and the four corners of the upper surface of the component fixing seat are respectively A mounting hole is opened, and a height adjustment screw is fixed inside each mounting hole; a top cover is set under the component fixing seat, and a multi-directional rocking rod is fixedly installed at the lower end of each height adjustment screw; a bottom cover is added on the bottom surface of the base , a plurality of holes are circularly distributed on the upper surface of the base and the bottom cover, and a ball is arranged in each hole of the base. The beneficial effects of the utility model are: by setting four height adjustment rods and internally configuring independent spring rebounds to press the workpiece tightly on the processing table for engraving and milling, infinite free angle adjustment can be realized, and products with different brands, types and lengths of spindles can be installed ; It can effectively reduce the resistance generated when the base workpiece moves, and carry out accurate engraving and milling processing precision.

Description

A floating spindle pressing device

technical field

The utility model relates to a pressing device on the main shaft of an engraving and milling machine, in particular to a floating main shaft pressing device.

Background technique

Engraving and milling machines are generally CNC milling machines that use small tools, high power and high-speed spindle motors. During processing, most of them are milled by machining centers (computer gongs). The advantage of engraving machines is engraving. If the hardness of the processed material is relatively large, it will also It seems powerless, and the emergence of engraving and milling machines can be said to fill the gap between the two. The engraving and milling machine can not only engrave, but also mill. It is a high-efficiency and high-precision CNC machine tool.

Engraving and milling machine is a kind of CNC machine tool. The engraving and milling machine has a wide range of applications, and is widely used in the rough and fine processing of precision mold cores at one time, the batch processing of copper electrodes for molds, aluminum parts, shoe mold manufacturing, fixture processing, and watch industry. For CNC milling and machining centers, because low speed and high torque are required, the reduction ratio of the spindle gearbox must be required to increase the low speed of torque; for engraving and milling machines, the spindle must work at 20,000 to 30,000 RPM to work. The rotation accuracy is generally about 2 μ, otherwise the phenomenon of tool breakage will be very serious, so the electric spindle must be used, that is, the motor and the spindle are integrated.

What needs to be pointed out in this case is that the pressing device currently installed on the spindle of the engraving and milling machine cannot effectively improve the accuracy of the engraving and milling machine for some unstable (such as deformation, bending, uneven, soft and thin, etc.) materials. ; At the same time, because the workpiece will generate resistance on the device base when it moves, it will cause the spindle engraving and milling to fail to achieve accurate depth engraving or cutting. Therefore, in view of the above aspects, it is necessary to make reasonable improvements to the prior art.

Utility model content

In view of the above defects, the utility model provides a floating spindle pressing device that can realize unlimited free angle adjustment, facilitate the installation of different brands, types or lengths of spindles, and is beneficial to achieve accurate depth engraving or cutting, so as to solve many problems in the prior art. insufficient.

In order to achieve the above object, the utility model adopts the following technical solutions:

A floating spindle pressing device, comprising a spindle motor, a component fixing seat, a top cover, a base, and a bottom cover, the spindle motor is installed on the upper surface of the component fixing seat, and four corners of the upper surface of the component fixing seat are respectively provided with a mounting hole , a height adjustment screw is fixed inside each mounting hole;

A top cover is provided under the component fixing seat, and a multi-directional rocking rod is fixedly installed at the lower end of each height adjustment screw;

A spring is installed in each height adjustment screw cavity and the lower end of the spring is connected to the top of the multi-directional rocker;

A top screw is added to the top of each multi-directional rocker and the top screw is snapped into the corresponding height adjustment screw cavity, and the lower end of each multi-directional rocker is fixed on the base through a centripetal joint bearing. layer bottom cover;

A plurality of holes are circularly distributed on the upper surface of the base and the bottom cover, a ball is arranged in each hole of the base, and each ball is clamped by the top cover and the bottom cover.

Correspondingly, each height adjustment screw is locked to the component fixing seat through an adjustment rod locking nut;

The hole position of each base corresponds to the hole position on the bottom cover one by one.

The beneficial effects of the floating main shaft pressing device described in the utility model are:

⑴By setting four height adjustment rods and internally equipped with independent spring rebound to press the workpiece tightly on the processing table for engraving and milling, it can realize unlimited free angle adjustment, and install products with different brands, types and lengths of spindles;

(2) It has a multi-directional floating binder base assembly, and a ball structure is set at the bottom, which can effectively reduce the resistance generated when the base workpiece moves; effectively improve the engraving and milling machine for some unstable (deformation, bending, uneven, soft and thin) and other materials Accurate engraving and milling processing precision.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic structural view of a floating spindle pressing device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the exploded structure of the floating spindle pressing device described in the embodiment of the present invention;

Fig. 3 is a schematic diagram of the combination of the height adjustment screw and the multi-directional rocking rod of the floating main shaft pressing device according to the embodiment of the present invention;

Fig. 4 is a schematic diagram of the disassembled structure of the height adjustment screw and the multi-directional rocker of the floating spindle pressing device according to the embodiment of the present invention.

In the picture:

1. Spindle motor; 2. Adjusting lever lock nut; 3. Component fixing seat; 4. Height adjusting screw; 5. Spring; 6. Top cover; 7. Top wire; 8. Multi-directional rocker lever; Bearing; 10, base; 11, bottom cover; 12, ball.

Detailed ways

As shown in Figures 1-4, the floating spindle pressing device described in the embodiment of the utility model includes a spindle motor 1, a component fixing seat 3, a top cover 6, a base 10, and a bottom cover 11. The spindle motor 1 is installed A mounting hole is opened on the upper surface of the component fixing base 3 and four corners of the upper surface of the component fixing base 3, and a height adjusting screw 4 is fixed inside each mounting hole, and each height adjusting screw 4 passes through an adjusting rod locking nut 2 Locked with the component holder;

Correspondingly, a top cover 6 is arranged below the component fixing seat 3, and a multi-directional rocking rod 8 is fixedly installed at the lower end of each height adjustment screw 4, and at the same time, a spring 5 is installed in each height adjustment screw 4 cavity and the spring 5 The lower end is connected to the top of the multi-directional rocking rod 8, and a top screw 7 is added at the top of each multi-directional rocking rod 8, and the jacking screw 7 is snapped into the inner cavity of the corresponding height adjustment screw 4, and the lower end of each multi-directional rocking rod 8 It is fixed on the base 10 through a centripetal joint bearing 9, and a layer of bottom cover 11 is added on the bottom surface of the base 10;

Correspondingly, several holes are circularly distributed on the upper surface of the base 10 and the bottom cover 11, the holes of each base 10 correspond to the positions of the holes on the bottom cover 11 one by one, and each hole of the base 10 is provided with a The balls 12 and each ball 12 are clamped by the top cover 6 and the bottom cover 11 .

The floating spindle pressing device described in the above embodiments of the utility model can realize infinite free angle adjustment by setting four height-adjusting screws and internally configuring independent spring rebounds to press the workpiece tightly on the processing table for engraving and milling. Products with different brands, types, and lengths of spindles; with multi-directional floating binder base components, and a ball structure at the bottom, which can effectively reduce the resistance generated when moving on the base workpiece; effectively improve the engraving and milling machine for some unstable (deformation, bending) , Unsmooth, soft and thin) and other materials for accurate engraving and milling processing accuracy.

The above description of the embodiments is for those of ordinary skill in the technical field to be able to understand and apply the technology of this case. Those skilled in the art can easily make various modifications to these examples, and apply the general principles described here to other embodiments without creative effort. Therefore, this case is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of this case should be within the scope of protection of this case.

Claims (3)

1. A floating spindle pressing device, including a spindle motor (1), a component fixing seat (3), a top cover (6), a base (10), a bottom cover (11), and the spindle motor (1) is installed on the component The upper surface of the fixing seat (3) is characterized in that: A mounting hole is respectively opened at four corners of the upper surface of the component fixing seat (3), and a height adjustment screw (4) is fixed inside each mounting hole; A top cover (6) is provided under the component fixing seat (3), and a multi-directional rocker (8) is fixedly installed at the lower end of each height adjustment screw (4); A spring (5) is installed in the cavity of each height adjustment screw (4) and the lower end of the spring (5) is connected to the top of the multi-directional rocker (8); A top screw (7) is added to the top of each multi-directional rocker (8) and the jack screw (7) is snapped into the inner cavity of the corresponding height adjustment screw (4), and the lower end of each multi-directional rocker (8) passes through A radial joint bearing (9) is fixed on the base (10), and a bottom cover (11) is added on the bottom surface of the base (10); The base (10) and the upper surface of the bottom cover (11) are circularly distributed with several holes, and a ball (12) is arranged in each hole of the base (10), and each ball (12) is controlled by the top cover (6) Clamp with bottom cover (11). 2. The floating spindle pressing device according to claim 1, characterized in that each height adjustment screw (4) is locked to the component fixing seat (3) through an adjustment rod locking nut (2). 3. The floating spindle pressing device according to claim 1, characterized in that: the hole position of each base (10) corresponds to the hole position on the bottom cover (11) one by one.