CN219043801U - Guide rail grinding machine - Google Patents

Abstract

The utility model relates to the technical field of grinding machines, in particular to a guide rail grinding machine, which comprises a base and further comprises: the gantry structure is positioned on the base, and comprises a rear upright post, a cross beam and a front upright post, wherein the rear upright post, the cross beam and the front upright post are fixedly arranged on the base; the grinding mechanism is respectively connected with the base and the gantry structure; the guide rail grinding machine is novel in structure, improves the overall rigidity and reliability of the equipment, and is beneficial to improving the grinding efficiency through the arranged driving assembly and the grinding head assemblies, simple in structure and convenient and flexible to use.

Description

Guide rail grinding machine

Technical Field

The utility model relates to the technical field of grinding machines, in particular to a guide rail grinding machine.

Background

The most important guide rail fine grinding procedure in the guide rail manufacturing flow adopts a high-precision and high-rigidity grinding machine to grind products with higher precision stages, at present, the domestic guide rail grinding machine mostly adopts a single gantry structure, a main shaft box is hung on one side of the gantry, the structure can cause the integral rigidity of equipment to be deficient, and in the grinding process, the grinding effect is influenced by displacement generated when a machined part is bent and deformed and stressed;

the X-axis of the guide rail grinder at home and abroad mostly adopts a hydraulic oil cylinder driving mode or a servo motor lead screw driving mode, and the two modes have various problems in the use process, such as oil leakage caused by friction loss of an oil cylinder, high temperature, disappearance of wear and pre-pressing of the lead screw, and the like, and the maintenance, repair and replacement are frequent, so that the grinding effect and the processing efficiency are affected; the processing difficulty of the V-shaped guide rail of the X axis is high, the workbench is deformed due to the change of the ambient temperature, and the requirement is difficult to meet in the use process; therefore, in view of the above situation, there is an urgent need to develop a rail grinder to overcome the shortcomings in the current practical applications.

Disclosure of Invention

The present utility model is directed to a rail grinder, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a rail grinder, comprising a base, further comprising:

the gantry structure is positioned on the base, and comprises a rear upright post, a cross beam and a front upright post, wherein the rear upright post, the cross beam and the front upright post are fixedly arranged on the base; and

the grinding mechanism is respectively connected with the base and the gantry structure;

the grinding mechanism comprises a driving assembly and a grinding head assembly, wherein the driving assembly is respectively connected with the base and the gantry structure, and a plurality of grinding head assemblies are further arranged on the driving assembly.

As a further scheme of the utility model: the drive assembly includes:

the X-axis linear motor is connected with the base;

the workbench is connected with the base through a second linear guide rail and is also connected with the X-axis linear motor; and

and the electromagnetic disc is fixedly arranged on the workbench.

As a further scheme of the utility model: the X-axis linear motor comprises a motor coil and a magnetic track, wherein the motor coil is arranged on the workbench, and the magnetic track is arranged in the base.

As a further scheme of the utility model: the drive assembly further includes:

the third linear guide rail and the first linear guide rail are both positioned on the cross beam and connected with the grinding head assembly; and

the Z-axis servo transmission system and the Y-axis servo transmission system are connected with the gantry structure and are respectively connected with the third linear guide rail and the first linear guide rail.

As a further scheme of the utility model: the grinding head assembly includes:

the grinding wheel spindle is positioned on the gantry structure, and a grinding wheel is arranged on the grinding wheel spindle; and

the number of grinding heads is three, two sets of grinding heads are vertical grinding heads, are arranged on two sides of the cross beam and are positioned between the rear upright post and the front upright post, and the other set of grinding heads are horizontal grinding heads, and are arranged on the front side of the rear upright post.

As a further scheme of the utility model: further comprises: the diamond sand repairing roller is fixedly arranged on the workbench.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The double-gantry fixed-column fixed-beam mechanism solves the defect of a domestic single-gantry structure form, and improves the integral rigidity of the equipment; the utility of the Abbe principle is fully exerted, and the distance between the positioning base line and the guide rail is reduced to the minimum; the thermally symmetrical double-gantry structure has the advantages of excellent structural rigidity and reduced thermal effect, so that the machine can maintain extremely stable precision for a long time;

(2) The multi-grinding-head combination technology and the multi-grinding-head online dressing technology are adopted, the double grinding wheels are dressed and dressed by the same diamond roller, the shapes and the sizes of the double grinding wheels are ensured to be the same, and the shapes, the sizes and the surface roughness of two sides of the grinding slide rail are completely the same. And the grinding efficiency is greatly improved;

(3) The original X-axis linear motor reduces the difficulty of assembling screw rods and the like in mechanical aspect, and provides faster moving speed, better positioning precision and repeated positioning precision by being matched with a magnetic grating ruler; the linear motor consists of motor coils and magnetic tracks, and the motor coils are formed by splicing unit bodies, so that the linear motor is simple in structure and convenient and flexible to use.

Drawings

FIG. 1 is a schematic view of a guide rail grinder according to the present utility model in a front view;

fig. 2 is a schematic side view of the guide rail grinder of the present utility model.

In the figure: 1-a base, 13-a first linear guide rail, 2-a rear upright post, 3-a cross beam, 4-a front upright post, 40-a grinding wheel spindle, 44-a Z-axis servo transmission system, 45-a second linear guide rail, the diamond grinding machine comprises a 5-third linear guide rail, a 50-Y axis servo transmission system, a 58-X axis linear motor, a 85-grinding head, a 94-diamond grinding roller, a 98-workbench, a 99-electromagnetic disc and a 122-magnetic grating ruler.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 and 2, a guide rail grinder according to an embodiment of the present utility model includes a base 1, and further includes:

the gantry structure is positioned on the base 1, and comprises a rear upright post 2, a cross beam 3 and a front upright post 4, wherein the rear upright post 2, the cross beam 3 and the front upright post 4 are fixedly arranged on the base 1; and

the grinding mechanism is respectively connected with the base 1 and the gantry structure;

the grinding mechanism comprises a driving assembly and a grinding head assembly, wherein the driving assembly is respectively connected with the base 1 and the gantry structure, and a plurality of grinding head assemblies are further arranged on the driving assembly.

Through the base 1 that sets up, wherein, base 1 adopts the design of thick base, can increase the body rigidity of board to through rear column 2, crossbeam 3 and the front column 4 that set up, solved the defect of domestic single longmen structural style, improved the whole rigidity of equipment, and through the drive assembly and a plurality of bistrique subassembly that set up, be favorable to improving the efficiency of grinding work, and simple structure, convenient to use is nimble, is worth promoting.

In one embodiment of the present utility model, referring to fig. 1 and 2, the driving assembly includes:

an X-axis linear motor 58, wherein the X-axis linear motor 58 is connected with the base 1;

the workbench 98 is connected with the base 1 through a second linear guide rail 45, the workbench 98 is also connected with the X-axis linear motor 58, and the machined guide rail is adsorbed on an electromagnetic disc to finish grinding; and

an electromagnetic disk 99, said electromagnetic disk 99 being fixedly mounted on said table 98.

Referring to fig. 1 and 2, the X-axis linear motor 58 includes a motor coil and a magnetic track, the motor coil is mounted on the table 98, the magnetic track is mounted in the base 1, and when the table 98 needs to move, the motor coil acts on the magnetic track to move the motor coil on the magnetic track, so as to complete the movement of the table 98 on the base 1.

Referring to fig. 1 and 2, the driving assembly further includes:

the third linear guide rail 5 and the first linear guide rail 13 are positioned on the cross beam 3 and are connected with the grinding head assembly, so that more restraint exists, traction offset among the guide rails can be eliminated, and the precision during machining movement is ensured; and

the Z-axis servo transmission system 44 and the Y-axis servo transmission system 50 are connected with the gantry structure, and the Z-axis servo transmission system 44 and the Y-axis servo transmission system 50 are respectively connected with the third linear guide rail 5 and the first linear guide rail 13.

Referring to fig. 1 and 2, the grinding head assembly includes:

a grinding wheel spindle 40, wherein the grinding wheel spindle 40 is positioned on the gantry structure, and a grinding wheel is installed on the grinding wheel spindle 40; and

the number of grinding heads 85 is three, two sets of grinding heads are vertical grinding heads, are arranged on two sides of the cross beam 3 and are positioned between the rear upright post 2 and the front upright post 4, and the other set of grinding heads are horizontal grinding heads, and are arranged on the front side of the rear upright post 2.

Referring to fig. 1 and 2, the method further includes: the diamond dressing roller 94, the diamond dressing roller 94 is fixedly mounted on the table 98.

When the grinding machine works, the head of the grinding wheel spindle 40 of the gantry structure is greatly shortened in overhanging mode, the rigidity is good, the linear guide rail of a workpiece to be machined is sucked on the electric disk 99 on the workbench 98, the X-axis linear motor 58 reciprocates back and forth along the X-axis, the grinding wheel spindle 40 of the machine simultaneously rotates the double-spindle grinding wheel, the feeding precision of the Y axis servo transmission system 50 and the Z axis servo transmission system 44 is 0.001mm close to the linear guide rail to be machined, when the grinding wheel needs to be trimmed, the X-axis linear motor 58 moves the diamond trimming roller 94 to the position of the grinding wheel spindle 40 to be trimmed, the grinding operation is repeated after trimming, the grinding operation is continued until the precision of the machined guide rail reaches the requirement, the original X-axis linear motor 58 reduces the difficulty of mechanically assembling lead screws and the like, and the magnetic grating ruler 122 is matched with the grinding machine to provide better positioning precision and repeated positioning precision. The linear motor consists of motor coils and magnetic tracks, and the motor coils are formed by splicing unit bodies, so that the linear motor is simple in structure and convenient and flexible to use.

The service life of the X-axis linear motor 58 is far longer than that of a lead screw and a hydraulic oil cylinder, so that the maintenance and repair time of equipment is reduced; the linear motor has the characteristics of high thrust and can bear heavy load, and is quite suitable for large-scale mechanisms and occasions requiring high thrust conditions: heavy load, suitable for low-speed operation, peak thrust: 1960.4N-7861N, sustained thrust: 1023.6N-3931.2N, the X-axis linear motor 58 provides a faster X-axis feeding speed, which can reach more than 35m/min at maximum, and the processing efficiency is higher.

And adopt the equal load of second linear guide 45 four directions to replace V type guide rail between workstation 98 and the base 1, make up V type guide rail and be difficult to process, frictional resistance is big and can't satisfy the precision operation requirement for a long time.

It should be noted that, in the present utility model, unless explicitly specified and defined otherwise, terms such as "sliding", "rotating", "fixing", "provided" and the like should be interpreted broadly, and may be, for example, welded, bolted, or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a guide rail grinds machine, includes the base, its characterized in that still includes:

the gantry structure is positioned on the base, and comprises a rear upright post, a cross beam and a front upright post, wherein the rear upright post, the cross beam and the front upright post are fixedly arranged on the base; and

the grinding mechanism is respectively connected with the base and the gantry structure;

the grinding mechanism comprises a driving assembly and a grinding head assembly, wherein the driving assembly is respectively connected with the base and the gantry structure, and a plurality of grinding head assemblies are further arranged on the driving assembly.

2. The rail grinder of claim 1, wherein the drive assembly comprises:

the X-axis linear motor is connected with the base;

the workbench is connected with the base through a second linear guide rail and is also connected with the X-axis linear motor; and

and the electromagnetic disc is fixedly arranged on the workbench.

3. The rail grinder of claim 2, wherein the X-axis linear motor includes a motor coil mounted on a table and a magnetic track mounted in the base.

4. The rail grinder of claim 3, wherein the drive assembly further comprises:

the third linear guide rail and the first linear guide rail are both positioned on the cross beam and connected with the grinding head assembly; and

the Z-axis servo transmission system and the Y-axis servo transmission system are connected with the gantry structure and are respectively connected with the third linear guide rail and the first linear guide rail.

5. The rail grinder of any one of claims 1-4, wherein the grinding head assembly includes:

the grinding wheel spindle is positioned on the gantry structure, and a grinding wheel is arranged on the grinding wheel spindle; and

the number of grinding heads is three, two sets of grinding heads are vertical grinding heads, are arranged on two sides of the cross beam and are positioned between the rear upright post and the front upright post, and the other set of grinding heads are horizontal grinding heads, and are arranged on the front side of the rear upright post.

6. A rail grinder as claimed in claim 2 or claim 3, further comprising: the diamond sand repairing roller is fixedly arranged on the workbench.

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