TWM504668U - High precision grinder with cantilever dual axis height position - Google Patents

Description

Cantilever type double spindle fixed height precision grinding machine

This creation is about a cantilever type two-spindle high-precision grinding machine, especially a grinding machine design designed for precision linear slider grinding operations.

The traditional grinding process can obtain high-quality machining precision and good surface quality, so the grinding machine is mainly used for precision machining of parts, especially precision machining of hardened steel parts and high-hardness special materials, such as the current linear application on precision machining tools. The slider's rolling element groove is machined. As shown in the first figure, since the roller load rails 102 of the two side walls of the groove 101 of the linear slider 10 are of a built-in type, the grinding tool must protrude into the inner groove of the slider for grinding. A shaft grinding wheel 20 is generally used.

However, the width of the groove 101 of the linear slider 10 is limited, and the diameter of the shaft-mounted grinding wheel 20 is relatively small in order to allow the above-mentioned shaft-mounted grinding wheel 20 to pass through the groove 101 and thereby grind to the Goth-shaped roller load rail 102. In other words, the smaller the width of the groove 101, the smaller the diameter of the shaft grinding wheel 20, so that the grinding area of the shaft grinding wheel 20 is reduced, and the abrasive material per unit area is used to grind the roller load rail 102 more frequently. The diamond grinding material of the opposite grinding wheel is depleted quickly. It is necessary to stop the surface of the grinding wheel frequently, and even replace the new shaft grinding wheel 20 frequently. This causes the grinding cost to be effectively reduced, and Grinding efficiency cannot be improved.

In addition, if the conventional general-purpose grinding machine is used for the above-mentioned slider grinding process, the grinding machine must pass through the vertical axial displacement of the main shaft (Z-axis displacement), and the grinding tool is applied to the dressing wheel and the workpiece (slider). The round-trip shift between the two, the frequent and repeated vertical axial shifting action, is prone to errors and adjustment problems, resulting in unstable grinding quality, which affects the yield of the product.

To this end, how to use the simple special grinding machine and the design of the grinding wheel, the large-diameter grinding wheel can be used to grind the roller load rail 102, avoiding the rapid wear of the grinding wheel surface, reducing the number of grinding wheel surface repair and replacement operations, and thus reducing The cost of the grinding wheel and the improvement of the grinding production efficiency are the technical means that the creative office should actively expose.

The purpose of the present invention is to provide a cantilever type two-spindle high-precision grinding machine which supports a fixed spindle through a cantilever type spindle seat integrally provided with a machine tool, and has a special double-spindle and double-grinding wheel structure to achieve uniformity of grinding quality. With the yield, reduce the number of grinding wheel surface repair and replacement operations, and extend the life of the grinding wheel.

In order to achieve the above object, the preferred technical solution of the cantilever type double-spindle fixed-high precision grinding machine comprises: a machine base, a work table, a spindle seat, a first spindle head and a second spindle head; a movable clamp for holding the workpiece to be mounted on the base; the spindle base is integrally formed on the base of the cantilever structure; the first spindle head is inclined at a first angle, and has a The first grinding wheel is inclined obliquely into a workpiece a groove to grind the first side of the groove; the second spindle head is inclined at a second angle having a second grinding wheel obliquely deep into the groove of the workpiece to grind the second side of the groove.

The cantilever type two-spindle high-precision grinding machine according to the above preferred technical solution, wherein the first spindle head is inclined toward the front of the table, and the second spindle head is inclined toward the rear of the table.

The cantilever type two-spindle high-precision grinding machine according to the above preferred technical solution, wherein the diameter of the first grinding wheel and the second grinding wheel is larger than the groove width of the workpiece.

The cantilever type two-spindle high-precision grinding machine according to the above preferred technical solution, wherein the spindle seat comprises a vertical column, and a cantilever horizontally connected to the upper end of the column; and the first spindle head and the second The spindle head is fixedly coupled to the cantilever.

The cantilever type two-spindle high-precision grinding machine according to the above preferred technical solution, wherein the top surface of the machine tool is provided with a first group of slide rails with a horizontal X-axis; the work table includes a first slide table and a second a sliding table, the first sliding table and the first group of sliding rails are slidingly engaged with each other, the first sliding table is reciprocally displaced along a first group of sliding rails in a horizontal X-axis, and a top surface Y is disposed at a top surface of the first sliding table The second group of slide rails in the axial direction; the second slide table and the second group of slide rails are slidingly engaged with each other, and the second slide table is reciprocally displaced along the second group of slide rails in the horizontal Y-axis direction.

The effect achieved by the cantilever type double-spindle high-precision grinding machine is as follows: (1) the machine tool and the spindle seat adopt a one-piece casting structure, and the first and second spindle heads are fixed on the spindle seat to form an unadjusted fixing. The structure can effectively reduce the factors that affect the grinding precision, such as the conventional spindle head drive mechanism and the track may cause errors, etc., to improve the uniformity, precision and yield of the grinding quality. (2) Due to the setting structure of the first and second spindle heads, a large diameter grinding wheel can be used, thereby reducing the number of grinding wheel surface repair and replacement operations, prolonging the service life of the grinding wheel, achieving the effect of reducing the cost of the grinding wheel and improving the grinding production efficiency. (3) When the large-diameter grinding wheel is used for machining, the motor with lower rotational speed can be used, and the same grinding efficiency can be achieved by the large-diameter grinding surface, thereby reducing the need for the high-speed motor of the grinding machine and reducing the cost of the grinding machine. .

10‧‧‧Linear slider

101‧‧‧ trench

102‧‧‧Load track

20‧‧‧Axis grinding wheel

1‧‧‧ machine tools

11‧‧‧The first set of rails

2‧‧‧Workbench

21‧‧‧First slide

22‧‧‧Second slide

23‧‧‧Second group of rails

24‧‧‧Clamp

3‧‧‧ spindle seat

31‧‧‧ column

32‧‧‧ cantilever

4‧‧‧First spindle head

41‧‧‧ Spindle

42‧‧‧Motor

43‧‧‧First grinding wheel

5‧‧‧Second spindle head

51‧‧‧ Spindle

52‧‧‧Motor

53‧‧‧Second grinding wheel

The first picture is a schematic diagram of a conventional linear grinding wheel with a shaft grinding wheel.

The second picture is a front view of the creation of a cantilever type two-spindle high-precision grinding machine.

The third picture is a side view of the creation of a cantilever type two-spindle high-precision grinding machine.

The fourth picture is a schematic diagram of the first side of the grinding of the cantilever type double-spindle fixed-high precision grinding machine.

The fifth picture is a schematic diagram of the first side of the grinding of the cantilever type double-spindle fixed-high precision grinding machine.

The structural features of the present creation and other functions and purposes are described in detail in the following embodiments:

As shown in the second and third figures, the cantilevered dual master of the creation The preferred embodiment of the shaft-fixing high-precision grinding machine comprises a machine tool 1, a table 2, a spindle holder 3, a first spindle head 4 and a second spindle head 5, wherein:

The machine tool 1 is made of high-grade cast iron, which has the characteristics of strong rigidity and stability. The first group of slide rails 11 is arranged on the top surface of the machine tool 1, so that the first group of slide rails 11 are along the horizontal X-axis. Direction setting and extension.

The workbench 2 is composed of a first slide table 21 and a second slide table 22, so that the bottom end surface of the first slide table 21 and the first group of slide rails 11 are slidably fitted to each other, and the top end surface of the first slide table 21 is disposed. There is a second set of slide rails 23 (as shown in the second figure), and the second set of slide rails 23 are arranged and extended along the horizontal Y-axis direction to slide the bottom end surface of the second slide table 22 and the second set of slide rails 23 to each other. The sleeve 2 can be moved by the numerically controlled driving displacement mechanism, and can be moved horizontally in the two-dimensional direction (X-axis and Y-axis) on the machine tool 1. This part is equivalent to the conventional grinding machine, so No further details will be given.

The main shaft base 3 is a cantilever structure integrally formed on the base 1, and preferably includes a vertical column 31, and a cantilever 32 horizontally integrally connected to the upper end of the column 31, the spindle base 3 and the machine tool 1Integral casting molding, thereby obtaining structural characteristics with stronger rigidity and better stability, and avoiding affecting the precision of the grinding process.

The first spindle head 4 and the second spindle head 5 are respectively fixed to the cantilever 32 of the spindle holder 3, respectively having a spindle 41, 51, driving the motors 42, 52 of the spindle 41, 51, and assembling the spindle 41, 51 of the disc-shaped first grinding wheel 43 and the second grinding wheel 53; wherein the first spindle head 4 is inclined to the front of the table 2 by a first angle, as shown in the fourth figure, the first grinding wheel The grinding surface of 43 is inclined deeper into the groove 101 of a linear slider 10 (ie, the workpiece), thereby grinding the roller load rail 102 on the first side of the groove 101; and the second spindle head 5 is directed to the table The rear slope of 2 is inclined at a second angle. As shown in the fifth figure, the grinding surface of the second grinding wheel 53 is inclined obliquely into the groove 101 of a linear slider 10 (ie, the workpiece), thereby grinding the groove. The roller load rail 102 of the second side of the 101, the first side and the second side of the groove 101 are corresponding inner side walls, so that the roller load rails 102 of the first side and the second side can be the first main shaft The head 4 is ground with the second spindle head 5.

In addition, the top surface of the second sliding table 22 of the work table 2 is provided with one or more movable clamps 24, so that the clamp 24 can be fixed to the linear slider 10 and the first grinding wheel 43 and the second grinding wheel. The height of 53 is specially designed to be a fixed height structure. Furthermore, the second slide table 22 of the table 2 is selected, for example, one side of the clamp 24, and a dresser (not shown) for refining the grinding tool is provided, which can adjust the dressing of the dresser. It is equal to the first grinding wheel 43 and the second grinding wheel 53, and is used to refurbish the first grinding wheel 43 and the second grinding wheel 53 as necessary.

The cantilever type double-spindle high-precision grinding machine composed of the above-mentioned machine tool 1, work table 2, spindle holder 3 and first and second spindle heads 4, 5 can provide a linear slider 10 fixed height grinding operation, such as the fourth As shown in the figure, a plurality of linear sliders 10 can be placed side by side (the workpiece) on the clamp 24, and reciprocated through the table 2, so that the first side of the groove 101 of the linear slider 10 passes through the first spindle head. The first grinding wheel 43 of 4 grinds the roller load rail 102 on the first side by the grinding surface of the first grinding wheel 43. After the first side finishes the grinding process, the groove 101 of the linear slider 10 is completely separated from the first grinding wheel 43 and then penetrated. The table 2 is moved so that the second side of the groove 101 of the linear slider 10 passes through the second grinding wheel 53 of the second spindle head 5, as shown in the fifth figure, the second side is ground by the grinding surface of the second grinding wheel 53 Roller load track 102. When the first grinding wheel 43 and the second grinding wheel 53 are polished, the groove 101 is inclined. Therefore, a large grinding wheel having a diameter larger than the groove 101 can be used, and the number of grinding per unit area of the polishing surface can be reduced, and a lower rotation speed can be adopted. The use of the motor, in addition to reducing the number of grinding wheel surface repair and replacement operations, extending the life of the grinding wheel, can also reduce the cost of the grinding machine to build the motor.

In addition, due to the geometric accuracy, rigidity, motion stability and vibration resistance of the conventional grinding machine, the machining accuracy of the workpiece will be directly affected. Therefore, the spindle seat 3 is set by integral casting. In the machine tool 1, therefore, the vibration generated by the first and second spindle heads 4, 5 by the workpiece can be effectively resisted and eliminated, so that the precision machining precision required for the grinding operation can be easily achieved. In addition, the cantilever type double-spindle high-precision grinding machine of the present invention has the advantages of setting the height of the spindle heads 4 and 5, in addition to eliminating the precision dimensional error caused by the displacement of the spindles 41 and 51 due to the Z-axis displacement, It has the effect of rigidity enhancement. When a single grinding machine production operation needs to be changed production line (for example, the linear slider 10 of different heights), the rapid change of the clamp 24 can be used to complete the action of the quick change line operation, reducing the time of the line changing operation and accelerating the production capacity.

In summary, the creation of the cantilever type double-spindle high-precision grinding machine has been practical and creative. The application of its technical means is also novel and undoubted, and the effect is in line with the design purpose. . To this end, a new type of patent application is filed according to law, but the bureau will be invited to give a detailed examination. And granting a patent as a prayer, to the sense of virtue.

1‧‧‧ machine tools

11‧‧‧The first set of rails

2‧‧‧Workbench

21‧‧‧First slide

22‧‧‧Second slide

24‧‧‧Clamp

3‧‧‧ spindle seat

32‧‧‧ cantilever

4‧‧‧First spindle head

41‧‧‧ Spindle

42‧‧‧Motor

43‧‧‧First grinding wheel

5‧‧‧Second spindle head

51‧‧‧ Spindle

52‧‧‧Motor

53‧‧‧Second grinding wheel

Claims (5)

A cantilever type double-spindle fixed-high precision grinding machine comprises: a base, a worktable, a spindle seat, a first spindle head and a second spindle head; the worktable is arranged on the base, and the upper set is used a movable clamp for clamping a workpiece; the spindle mount is integrally formed on a cantilever structure on the base; the first spindle head is inclined at a first angle, and has a first grinding wheel obliquely deep into a workpiece a groove to grind the first side of the groove; the second spindle head is inclined at a second angle having a second grinding wheel obliquely deep into the groove of the workpiece to grind the second side of the groove. A cantilever type two-spindle high-precision grinding machine according to claim 1, wherein the first spindle head is inclined toward a front of the table, and the second spindle head is inclined toward a rear of the table. The cantilever type two-spindle high-precision grinding machine according to claim 2, wherein a diameter of the first grinding wheel and the second grinding wheel is larger than a groove width of the workpiece. The cantilever type double spindle high-precision grinding machine according to claim 3, wherein the spindle seat comprises a vertical column, and a cantilever horizontally connected to an upper end of the column; and the first spindle head and the second spindle head Fixedly attached to the cantilever. The cantilever type two-spindle high-precision grinding machine according to claim 4, wherein the top surface of the machine tool is provided with a first group of slide rails of a horizontal X-axis; the table includes a first slide table and a second slide table The first sliding table and the first group of sliding rails are slidingly engaged with each other, and the first sliding table is horizontally X-axis The first set of slide rails is reciprocally displaced, and the first slide table is provided with a second set of slide rails in a horizontal Y-axis; the second slide table and the second set of slide rails are slidably fitted to each other, the second slide The second set of slide rails of the table along the horizontal Y axis are reciprocally displaced.