CN219293665U

CN219293665U - Optimized tube bundle wiring spindle head box of coordinate grinding machine

Info

Publication number: CN219293665U
Application number: CN202320029273.3U
Authority: CN
Inventors: 严琼猛
Original assignee: Hardinge Machine Shanghai Co Ltd
Current assignee: Hardinge Machine Shanghai Co Ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-07-04
Anticipated expiration: 2033-01-06

Abstract

The coordinate grinding machine optimizes a tube bundle wiring spindle head box, an upper connecting seat (4) is arranged at an opening at the upper end of a spindle head box body (1), and a top beam tube (7), a fixed beam tube (6) and a rotary beam tube (5) are sequentially and vertically arranged on the upper connecting seat (4) in a penetrating manner from top to bottom; a rotor bearing is coaxially arranged between the rotary beam tube (5) and the fixed beam tube (6); a group of external connectors (8) are respectively arranged on the outer walls of the fixed beam tube (6) and the top beam tube (7); the joints are connected with a plurality of inner joints (11) on the axial connecting end face of the rotary beam tube (5) one by one. The novel connection method for enabling the water, electricity, gas and other medium lines to intensively penetrate through the head box to one end of the rotary motion shaft is achieved, the lines are intensively installed and arranged in the head box, and the winding of the lines and cables during the rotation of the main shaft of the coordinate grinding machine is avoided. The circuit abrasion caused by dry operation is avoided, the vibration absorption is good, and the service life of the circuit is prolonged; the positioning precision of the shaft is effectively improved, and the machining precision of the coordinate grinding machine is improved.

Description

Optimized tube bundle wiring spindle head box of coordinate grinding machine

Technical Field

The utility model relates to a structure improvement technology of a head box device of a coordinate grinder device, in particular to a spindle head box device for intensively connecting working pipelines of the coordinate grinder device in a penetrating way.

Background

The jig grinding machine is a machine tool developed for the purpose of eliminating heat treatment deformation of materials, and can grind holes with high pitch accuracy and various contour shapes. The coordinate grinder can grind circular arc inner and outer surfaces, conical holes and the like besides cylindrical holes, and is mainly used for processing quenched workpieces, stamping dies, pressing dies and the like. The grinding wheel is installed with a grinding attachment to make the axis of the grinding wheel in a horizontal position, and the grinding wheel does not do planetary motion but only up-and-down reciprocating motion, and can perform grinding similar to the form of slotting to process an inner gear ring, an index plate, a cam and the like. With the application of digital control techniques, coordinate grinders have been capable of grinding a variety of forming surfaces.

The coordinate grinder equipment is provided with a precise coordinate positioning mechanism and is used for grinding a precise hole with high pitch precision requirement and a grinding machine for forming a surface. The grinding carriage and the working table of the coordinate grinder equipment are respectively provided with a data device, and the moving amount of the data device can be displayed.

When the coordinate grinder grinds, the workpiece is fixed on a workbench which can move according to the coordinate positioning, and the grinding wheel rotates at a high speed, also revolves at a slow speed through a planetary transmission mechanism and can perform vertical feeding motion. Radial feeding can be realized by changing the radius of planetary motion of the grinding head.

The coordinate grinder is mainly characterized by three components: firstly, the positioning precision of each shaft of the coordinate grinder is very high; the second is that a feeding U-shaft perpendicular to the axis of the main shaft is connected to the lower end of the main shaft, and the main shaft of the machine tool rotates while the U-shaft sliding plate drives the grinding main shaft arranged on the U-shaft sliding plate and the grinding wheel arranged on the grinding main shaft to move along the direction perpendicular to the axis of the main shaft of the machine tool so as to achieve the purpose of radial feeding; thirdly, the main shaft of the machine tool can do rapid high-frequency reciprocating stroke movement.

In the prior art, a traditional U-axis for radial feeding of a grinding wheel of a coordinate grinder drives a series of mechanical transmission mechanisms through a servo motor arranged on a main shaft head box body, and finally drives a grinding main shaft to move on a U-axis sliding plate in a direction perpendicular to the axis of the main shaft, so that the purpose of radial feeding of the grinding wheel is achieved. Because the U-axis is fixed at the lower end of the main shaft of the machine tool and rotates together with the main shaft, the mechanical transmission mode has a plurality of links and can only be controlled in an open loop,

the pipeline for providing power for feeding the U shaft and transmitting the control/measurement signals of the U shaft is segmented and connected with the head box one by one from a plurality of positions or directly connected with working equipment. The circuit connection is complex and tedious, and the feeding precision can be affected. The manufacturing difficulty is high, the manufacturing cost is high, and the working accuracy of the feed shaft can be reduced due to mechanical abrasion after the machine tool is used for a long time.

Disclosure of Invention

The utility model aims to provide an optimized tube bundle wiring spindle head box of a coordinate grinder, which overcomes the defects of the prior art, and solves the problems of the prior art by adopting an innovative connection method for realizing that water, electricity, gas and other medium lines intensively pass through the head box to one end of a rotating motion shaft on a machine tool.

The object of the utility model is achieved by the following technical measures: comprises a main shaft head box body, an upper connecting seat, a rotary beam tube, a fixed beam tube and a top beam tube. The axial middle part of the vertically installed spindle head box body is provided with a hole, the opening at the upper end of the spindle head box body is provided with an upper seat, and the upper seat is sequentially penetrated through a coaxially installed top beam tube, a fixed beam tube and a rotating beam tube from top to bottom; a rotor bearing is coaxially arranged between the rotating beam tube and the fixed beam tube; a group of external connectors are respectively arranged on the outer walls of the fixed beam tube and the top beam tube; correspondingly, the joints are connected with a plurality of inner joints on the axial connecting end face of the rotating beam tube one by one.

In particular, a box top window is hollowed out on the top edge of the main shaft head box body. The shape and the inner cavity of the main shaft head box body and the upper connecting seat are square box type.

In particular, the outer wall of the upper joint seat is hollowed out and provided with an inner joint window.

The lower end of the rotating beam tube is coaxially connected with a coordinate grinder main shaft through a driving main shaft, the coordinate grinder main shaft passes through the bottom end of the main shaft head box body downwards and then is connected with a radial feeding U shaft, and a grinding main shaft is arranged at the lower side of the radial feeding U shaft. A connecting cover is arranged between the rotating beam tube and the fixed beam tube, and the connecting cover is fixedly connected with the top surface of the upper connecting seat in a pressing way.

In particular, two groups of external connectors arranged on the outer walls of the fixed beam tube and the top beam tube are respectively arranged in a staggered position. A group of external connectors arranged on the outer wall of the fixed beam tube are connected into the cooling oil tube, the compressed air tube and the lubricating oil tube at intervals; a group of external connectors arranged on the outer wall of the top beam tube are connected with the cable into the top beam tube; correspondingly, the joints are connected with the inner joints on the axial connecting end face of the rotating beam tube one by one.

In particular, the rotating beam tube, the fixed beam tube and the top beam tube form a composite rotary joint, and a plurality of groups of rotary joints and electric slip rings are arranged in the composite rotary joint.

The utility model has the advantages and effects that: the circuit is arranged in the head box in a concentrated manner, so that the transmission link is reduced, the installation, maintenance and operation are convenient, the closed-loop control is supported, the circuit abrasion involved in the operation is avoided, the vibration absorption is good, the circuit is simple, safe and reliable, the manufacturing cost is saved, and the service life of the circuit is prolonged; the positioning precision of the shaft is effectively improved, and the machining precision of the coordinate grinding machine is improved.

Drawings

FIG. 1 is a schematic axial view of a mounting structure according to embodiment 1 of the present utility model.

FIG. 2 is a second schematic axial view of the mounting structure of embodiment 1 of the present utility model.

Fig. 3 is a schematic front view of the mounting structure in embodiment 1 of the present utility model.

Fig. 4 is a schematic view showing a partial structure in embodiment 1 of the present utility model.

The reference numerals include:

the device comprises a 1-spindle head box body, a 2-radial feeding U shaft, a 3-grinding spindle, a 4-upper connecting seat, a 5-rotating beam tube, a 6-fixed beam tube, a 7-top beam tube, an 8-outer joint, a 9-driving spindle, a 10-coordinate grinding machine spindle, an 11-inner joint and a 12-connecting cover; 101-roof window, 401-inscribed window.

Detailed Description

The principle of the utility model is that because the electric wire lines and other medium lines are more, the related pipelines are difficult to be connected to the outside of the main shaft 10 of the coordinate grinding machine without interference, and researches show that only a bundling method is adopted to connect various working lines, mainly working lines of water, electricity, gas and other mediums on a machine tool for a moving shaft connected to one end of a rotating shaft, after optimization, the working lines are reasonably wired and are contained in a head box, so that the installation space is saved, and the key is the structure of an access head box and an access head box of the pipelines.

In the utility model, the power line and control cable of the servo motor of the grinding spindle 3 and the radial feeding U-shaft 2, the power line of the grating ruler, the power line of the signal cable and other wires of the grating ruler, and the pipelines of cooling water, compressed air, lubricating oil and the like needed by the grinding spindle 3 are avoided from rotating the spindle 10 of the coordinate grinder, and the wires are connected from top to bottom along the axial direction of the spindle 10 of the coordinate grinder from the top of the spindle head box 1 and are clustered and arranged in a built-in way.

In the present utility model, further, in order to cooperate with the technical improvement of the present utility model, and also in order to avoid the mechanical transmission defect in the existing technology of the coordinate grinder, it is necessary to directly install the servo motor, the ball screw, the feedback grating ruler, etc. for driving the radial feeding U-axis 2 at the lower end of the coordinate grinder spindle 10 of the coordinate grinder device, so that the installation and driving modes of the radial feeding U-axis 2 are the same as those of other linear axes.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected.

The utility model comprises the following steps: the spindle head box body 1, an upper joint seat 4, a rotary beam tube 5, a fixed beam tube 6 and a top beam tube 7.

The utility model is further described below with reference to the drawings and examples.

Example 1: as shown in figures 1, 2 and 3, the axial middle part of a vertically installed main shaft head box body 1 is provided with a hole, the upper end of the main shaft head box body 1 is provided with an opening, an upper seat 4 is arranged on the upper seat 4, and a top beam tube 7, a fixed beam tube 6 and a rotary beam tube 5 are vertically and sequentially arranged in a penetrating way from top to bottom; a rotor bearing is coaxially arranged between the rotary beam tube 5 and the fixed beam tube 6; a group of external connectors 8 are respectively arranged on the outer walls of the fixed beam tube 6 and the top beam tube 7; correspondingly, the joints are connected with a plurality of inner joints 11 on the axial connecting end surface of the rotary beam tube 5 one by one.

In the foregoing, the lower end of the rotating beam tube 5 is coaxially connected with the coordinate grinder spindle 10 through the driving spindle 9, the coordinate grinder spindle 10 passes through the bottom end of the spindle head box 1 downwards and then is connected with the radial feeding U shaft 2, and the grinding spindle 3 is arranged at the lower side of the radial feeding U shaft 2.

In the foregoing, the top edge of the spindle head box 1 is hollowed out with a top window 101.

In the foregoing, the outer shape and the inner cavity of the spindle head box 1 and the upper seat 4 are square boxes.

In the foregoing, the outer wall of the upper socket 4 is hollowed out with an inner window 401.

In the foregoing, the connecting cover 12 is installed between the rotating beam tube 5 and the fixed beam tube 6, and the connecting cover 12 is fixed on the top surface of the upper seat 4 in a pressure welding manner.

In the foregoing, the two groups of outer joints 8 mounted on the outer walls of the fixed beam tube 6 and the top beam tube 7 are respectively staggered in position.

In the embodiment of the utility model, as shown in fig. 4, a group of external connectors 8 arranged on the outer wall of the fixed beam tube 6 are connected into a cooling oil tube, a compressed air tube and a lubricating oil tube at intervals into the fixed beam tube 6; a group of outer connectors 8 arranged on the outer wall of the top beam tube 7 are connected with cable wires into the top beam tube 7; correspondingly, the joints are connected with the inner joints 11 on the axial connecting end face of the rotary beam tube 5 one by one.

In the embodiment of the utility model, the rotary beam tube 5, the fixed beam tube 6 and the top beam tube 7 form a composite rotary joint, a plurality of groups of rotary joints and electric slip rings are arranged in the composite rotary joint, and a plurality of groups of water, gas, oil and other mediums and a plurality of paths of power supplies or signals can be input/output in the fixed beam tube 6 and then output/input in the rotary beam tube 5. The composite rotary joint and the coordinate grinder spindle 10 are fixed together for rotation, and the fixed beam tube 6 is fixed on the spindle head box 1 erected along the Z axis and does not rotate. And the winding of the pipeline and the cable is avoided when the coordinate grinder main shaft 10 rotates. The grinding spindle 3 and the radial feeding U-axis 2 can conveniently supply power, control signals, water, gas, oil and other media required by driving and controlling.

In the embodiment of the utility model, the sliding plate on the radial feeding U shaft 2 drives the grinding main shaft 3 arranged on the radial feeding U shaft to do feeding motion perpendicular to the axis of the main shaft 10 of the coordinate grinding machine. The coordinate grinder spindle 10 can reciprocate up and down in the Z-axis direction and perform servo motion, or can be driven by the drive spindle 9 to perform rotational motion. The grinding spindle 3 drives a grinding wheel arranged on the grinding spindle to rotate at a high speed so as to grind a workpiece.

The above embodiments are provided for illustrating the principle of the present utility model with reference to the accompanying drawings, and the present utility model is not limited to the above embodiments, but the scope of the present utility model is defined by the appended claims and equivalents thereof.

Claims

1. The coordinate grinding machine optimized tube bundle wiring spindle head box comprises a spindle head box body (1), an upper connecting seat (4), a rotary beam tube (5), a fixed beam tube (6) and a top beam tube (7); the device is characterized in that an opening is formed in the axial middle of a vertically installed spindle head box body (1), an upper connecting seat (4) is arranged at an opening at the upper end of the spindle head box body (1), and a top beam tube (7), a fixed beam tube (6) and a rotary beam tube (5) are sequentially and vertically installed on the upper connecting seat (4) in a penetrating manner from top to bottom; a rotor bearing is coaxially arranged between the rotary beam tube (5) and the fixed beam tube (6); a group of external connectors (8) are respectively arranged on the outer walls of the fixed beam tube (6) and the top beam tube (7); correspondingly, the joints are connected with a plurality of inner joints (11) on the axial connecting end surface of the rotary beam tube (5) one by one.

2. The coordinate grinder optimized tube bundle wiring spindle head box according to claim 1, wherein the lower end of the rotary tube bundle (5) is coaxially connected with a coordinate grinder spindle (10) through a driving spindle (9), the coordinate grinder spindle (10) passes through the bottom end of the spindle head box body (1) downwards and then is connected with a radial feeding U-shaft (2), and a grinding spindle (3) is arranged on the lower side of the radial feeding U-shaft (2).

3. The optimized tube bundle wiring spindle headstock of a coordinate grinder according to claim 1, wherein a headstock top window (101) is hollowed out on the top edge of the spindle headstock body (1).

4. The optimized tube bundle wiring spindle headstock of a coordinate grinder according to claim 1, wherein the spindle headstock body (1) and the upper joint seat (4) are square box-shaped in shape and inner cavity.

5. The coordinate grinder optimized tube bundle wiring spindle headstock according to claim 1, wherein an inner window (401) is hollowed out on the outer wall of the upper seat (4).

6. The optimized tube bundle wiring spindle head box of the coordinate grinder according to claim 1, wherein a connecting cover (12) is arranged between the rotary bundle tube (5) and the fixed bundle tube (6), and the connecting cover (12) is fixedly connected with the top surface of the upper connecting seat (4) in a pressing mode.

7. The optimized tube bundle wiring spindle headstock of a coordinate grinder according to claim 1, wherein two sets of external joints (8) mounted on the outer walls of the fixed bundle tube (6) and the top bundle tube (7) are respectively arranged in staggered positions.

8. The optimized tube bundle junction spindle headstock of a coordinate grinder according to claim 1, characterized in that a set of external joints (8) mounted on the outer wall of the fixed bundle tube (6) are intermittently connected into the cooling oil tube, the compressed air tube and the lubrication oil tube into the fixed bundle tube (6); a group of external connectors (8) arranged on the outer wall of the top beam tube (7) are connected with the cable into the top beam tube (7); correspondingly, the joints are connected with inner joints (11) on the axial connecting end surface of the rotary beam tube (5) one by one.

9. The coordinate grinder optimized tube bundle wiring spindle headstock according to claim 1, wherein the rotating bundle tube (5), the fixed bundle tube (6) and the top bundle tube (7) form a composite rotary joint, and a plurality of groups of rotary joints and electric slip rings are arranged in the composite rotary joint.