CN214980056U - Gantry type coordinate grinding machine - Google Patents
Gantry type coordinate grinding machine Download PDFInfo
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- CN214980056U CN214980056U CN202121428156.1U CN202121428156U CN214980056U CN 214980056 U CN214980056 U CN 214980056U CN 202121428156 U CN202121428156 U CN 202121428156U CN 214980056 U CN214980056 U CN 214980056U
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- direction sliding
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Abstract
The utility model discloses a gantry type coordinate grinding machine.A bed body is provided with an X-direction sliding table in a sliding way, the X-direction sliding table is driven by an X-direction driving mechanism, and the X-direction sliding table can move back and forth relative to a double-column; a W-direction cross beam is arranged on the double-upright column in a sliding manner, is driven by a W-direction driving mechanism and moves up and down along the double-upright column; the Y-direction sliding plate is arranged on the W-direction cross beam in a sliding mode, the Y-direction driving mechanism is arranged on the W-direction cross beam and drives the Y-direction sliding plate to move left and right along the W-direction cross beam, the Y-direction sliding plate is provided with the spindle box, the spindle box is internally provided with the static pressure spindle mechanism, the bottom of the static pressure spindle mechanism is provided with the U-direction sliding plate mechanism, the U-direction sliding plate mechanism is provided with the grinding spindle, and the grinding spindle is provided with the grinding wheel. The gantry structure is adopted, so that the machining size range of parts is enlarged; by adopting the static pressure main shaft mechanism, the rotation and the linear motion can be realized at the same time, the main shaft structure is simplified, the rotation precision is improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a jig grinder, especially a planer-type jig grinder.
Background
The coordinate grinding machine has the linear and circular interpolation functions, can grind and process quenched mechanical parts by a linear and circular approximation method, can grind straight holes, taper holes, curved surfaces and the like, and has processing modes of planetary grinding, plunge grinding circulation, finishing grinding circulation and the like. The existing coordinate grinding machine has poor rotation precision of a planet main shaft and low roundness processing precision; the radial feeding transmission chain of the grinding main shaft is too long, the feeding stroke of the U shaft is small, the position precision is poor, and high-precision machining cannot be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a planer-type jig grinding machine.
The purpose of the utility model is realized through the following technical scheme: a gantry type coordinate grinding machine comprises a machine body and double columns arranged on the machine body, wherein an X-direction sliding table is arranged on the machine body in a sliding manner and driven by an X-direction driving mechanism, and the X-direction sliding table can move relative to the double columns; a W-direction cross beam is arranged on the double-upright column in a sliding manner, is driven by a W-direction driving mechanism and moves up and down along the double-upright column; the Y-direction sliding plate is slidably mounted on the W-direction cross beam, the Y-direction driving mechanism is mounted on the W-direction cross beam and drives the Y-direction sliding plate to move along the Y-direction cross beam, the Y-direction sliding plate is provided with the spindle box, the static pressure spindle mechanism is mounted inside the spindle box, the U-direction sliding plate mechanism is mounted at the bottom of the static pressure spindle mechanism, the grinding spindle is mounted on the U-direction sliding plate mechanism, the grinding spindle is provided with the grinding wheel, and the grinding wheel is located above the machine body.
Optionally, the static pressure spindle mechanism comprises a planetary spindle and a sleeve, the sleeve is sleeved on the planetary spindle, an oil film gap is formed between the planetary spindle and the sleeve, the sleeve is fixedly installed in the spindle box, an oil inlet and an oil outlet are formed in the sleeve, the oil inlet and the oil outlet are communicated with the oil film gap, the spindle box is installed on the Y-direction sliding plate, the top of the planetary spindle is connected with the spindle driving device, the spindle driving device drives the planetary spindle to do linear and rotary motion, and the bottom of the planetary spindle is connected with the U-direction sliding plate mechanism.
Optionally, the main shaft driving device is divided into a main shaft linear driving device and a main shaft rotary driving device, the main shaft linear driving device drives the planetary main shaft to move linearly, and the main shaft rotary driving device drives the planetary main shaft to move rotationally.
Optionally, the grinding spindle and the grinding wheel are coupled by an HSK broach system.
Optionally, the axis line of the planet main shaft is perpendicular to the table top of the X-direction sliding table.
The utility model has the advantages of it is following: the coordinate grinding machine of the utility model adopts a gantry structure, thus enlarging the size range of part processing; the static pressure main shaft mechanism for the coordinate grinding machine replaces the traditional rolling bearing and linear bearing, has the characteristics of high precision, good vibration absorption, no abrasion and simple structure, and is particularly suitable for a high-precision coordinate grinding machine; according to the static pressure main shaft mechanism, an oil film is formed between working surfaces, and the oil film has the characteristics of high rigidity, strong bearing capacity and good vibration absorption, so that no friction and abrasion exist between the working surfaces, the low-speed climbing is good, the precision stability is good, and the service life is long; the static pressure oil film also has an error homogenization effect, and higher static pressure main shaft precision can be obtained without too high part processing precision; compared with a rolling bearing and linear bearing structure, the static pressure main shaft mechanism has no rolling balls to circularly roll, so that the static pressure main shaft mechanism has no vibration and no noise even in high-speed operation, has no abrasion in reverse motion, can ensure that the rotation precision of the main shaft reaches 0.5 micron, and can ensure that the main shaft linearly moves to realize the feeding of 0.1 micron when being matched with a linear motor for use. The application of the static pressure main shaft improves the precision and the processing precision of the coordinate grinding machine and can realize precision processing.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
fig. 3 is a third schematic structural view of the present invention;
FIG. 4 is a schematic view of the installation of the planetary spindles;
FIG. 5 is an enlarged view at I in FIG. 4;
FIG. 6 is a schematic view of the installation of the sleeve
In the figure, 2-sleeve, 4-cover plate, 6-through hole, 7-oil film gap, 8-oil inlet, 9-oil outlet, 10-lathe bed, 20-double column, 30-grinding spindle, 40-X direction sliding table, 50-static pressure spindle mechanism, 51-Y direction beam, 52-Y direction sliding plate, 53-main spindle box, 54-planet spindle, 55-U direction sliding plate mechanism and 301-grinding wheel.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 2 and fig. 3, a gantry type coordinate grinding machine, including a machine body 10, a double column 20 disposed on the machine body 10, and the arrangement of the double column 20, so that the coordinate grinding machine is of a gantry type structure, and can increase the size of parts to be machined, an X-direction sliding table 40 is slidably mounted on the machine body 10, the X-direction sliding table 40 is driven by an X-direction driving mechanism, the X-direction driving mechanism is an existing mechanism, and mainly includes a driving motor and an X-direction lead screw, the driving motor drives the X-direction lead screw to rotate, so as to drive the X-direction sliding table 40 to move along the machine body 10, because the double column 20 is mounted on the machine body 10, which is also equivalent to that the X-direction sliding table 40 moves relative to the double column 20 at this time.
In this embodiment, a W-direction beam 51 is slidably mounted on the double column 20, a Y-direction slide plate 52 is slidably mounted on the W-direction beam 51, W, Y-direction driving mechanisms are respectively mounted on the double column 20 and the W-direction beam 51, the W, Y-direction driving mechanism is also a conventional mechanism and mainly comprises a driving motor and a ball screw, the W-direction driving mechanism drives the W-direction beam 51 to move along the double column 20, the Y-direction driving mechanism drives the Y-direction slide plate 52 to move along the W-direction beam 51, a spindle box is mounted on the Y-direction slide plate 52, a static pressure spindle mechanism 50 is mounted in the spindle box, a U-direction slide plate mechanism 55 is mounted at the bottom of the static pressure spindle mechanism 50, a grinding spindle 30 is mounted on the U-direction slide plate mechanism 55, a grinding wheel 301 is mounted on the grinding spindle 30, the grinding wheel 301 is located above the bed 10, the U-direction slide plate mechanism 55 is also a conventional technology and mainly comprises a U-direction slide plate, a U-axis servo motor and a ball screw pair, the U-direction sliding plate drives the ball screw pair through the U-axis servo motor to realize radial movement of the grinding main shaft 30.
In this embodiment, as shown in fig. 4, 5 and 6, the static pressure spindle mechanism 50 includes a planetary spindle 54 and a sleeve 2, the sleeve 2 is sleeved on the planetary spindle 54, and an oil film gap 7 is formed between the planetary spindle 54 and the sleeve 2, the sleeve 2 is fixedly installed in a spindle box 53, the sleeve 2 is provided with an oil inlet 8 and an oil outlet 9, both the oil inlet 8 and the oil outlet 9 are communicated with the oil film gap 7, in this embodiment, the spindle box 53 is provided with a through hole 6 corresponding to the oil inlet 8 and the oil outlet 9, an oil pipe of an oil supply device penetrates the through hole 6 and is connected with the oil inlet 8, the oil supply device supplies oil to fill the oil film gap 7 with oil, so that the oil film gap 7 between the planetary spindle 54 and the sleeve 2 forms a static pressure oil film, the static pressure oil film has the characteristics of high rigidity, strong bearing capacity and good vibration absorption, and no friction and no abrasion between working surfaces, the low-speed climbing is good, the precision stability is good, and the service life is long; the static pressure oil film also has an error homogenizing effect, higher static pressure main shaft precision can be obtained without too high part processing precision, in the embodiment, the static pressure main shaft mechanism 50 is adopted for the coordinate grinding machine to replace a roller bearing and a linear bearing, compared with the existing roller bearing and the existing linear bearing, because no ball rolls circularly, vibration and noise are completely avoided even in high-speed operation, abrasion is avoided in reverse direction movement, the rotation precision of the planetary main shaft 54 can reach 0.5 micron, the static pressure main shaft mechanism 50 can be matched with a linear motor for use, and the planetary main shaft 54 can linearly move to realize 0.1 micron feeding, so the static pressure main shaft mechanism 50 improves the precision and the processing precision of the coordinate grinding machine and can realize high-precision processing.
In this embodiment, the main spindle box 53 is installed on the Y-directional slide plate 52, the top of the planetary spindle 54 is connected to the spindle driving device, and the spindle driving device drives the planetary spindle 54 to perform linear and rotary motions, the spindle driving device is divided into a spindle linear driving device and a spindle rotary driving device, the spindle linear driving device is preferably directly driven by a linear motor, the secondary selection uses a servo motor to drive a ball screw pair to drive the planetary spindle to move up and down, the spindle rotary motion is reduced by a reducer through the servo motor to drive the spindle to rotate, the bottom of the planetary spindle 54 is connected to the U-directional slide plate mechanism 55, in this embodiment, the spindle linear driving device and the spindle rotary driving device are both in the prior art, and will not be described again, in this embodiment, a linear motor is preferably used, and the linear motor is matched with the static pressure spindle mechanism 50, so that the spindle 1 can perform linear motion to achieve 0.1 micron feeding, the servo motor is matched with the static pressure main shaft mechanism 50, so that the rotation precision of the main shaft 1 can reach 0.5 micron.
In this embodiment, the grinding spindle 30 and the grinding wheel 301 are coupled using an HSK broach system.
In the present embodiment, the axis of the planetary main shaft 54 is perpendicular to the table surface of the X-direction slide table 40.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A gantry-type coordinate grinding machine, characterized by: the X-direction sliding table is driven by an X-direction driving mechanism and can move back and forth relative to the double columns; a W-direction cross beam is slidably mounted on the double-upright column, is driven by a W-direction driving mechanism and moves up and down along the double-upright column; the grinding machine is characterized in that a Y-direction sliding plate is slidably mounted on the W-direction cross beam, a Y-direction driving mechanism is mounted on the W-direction cross beam and drives the Y-direction sliding plate to move left and right along the W-direction cross beam, a spindle box is mounted on the Y-direction sliding plate, a static pressure spindle mechanism is mounted inside the spindle box, a U-direction sliding plate mechanism is mounted at the bottom of the static pressure spindle mechanism, a grinding spindle is mounted on the U-direction sliding plate mechanism, a grinding wheel is mounted on the grinding spindle, and the grinding wheel is located above the machine body.
2. A gantry-type coordinate grinding machine as defined in claim 1, wherein: the static pressure main shaft mechanism comprises a planetary main shaft and a sleeve, the sleeve is sleeved on the planetary main shaft, an oil film gap is formed between the planetary main shaft and the sleeve, the sleeve is fixedly installed in the main shaft box, an oil inlet hole and an oil outlet hole are formed in the sleeve, the oil inlet hole and the oil outlet hole are communicated with the oil film gap, the main shaft box is installed on the Y-direction sliding plate, the top of the planetary main shaft is connected with a main shaft driving device, the main shaft driving device drives the planetary main shaft to linearly move (Z direction) and rotate (S direction), and the bottom of the planetary main shaft is connected with the U-direction sliding plate mechanism.
3. A gantry-type coordinate grinding machine as defined in claim 2, wherein: the main shaft driving device is divided into a main shaft linear driving device and a main shaft rotary driving device, the main shaft linear driving device drives the planetary main shaft to do linear motion, and the main shaft rotary driving device drives the planetary main shaft to do rotary motion.
4. A gantry-type coordinate grinding machine as defined in claim 1, wherein: and the grinding main shaft is connected with the grinding wheel by adopting an HSK broach system.
5. A gantry-type coordinate grinding machine as defined in claim 2, wherein: the axis line of the planet main shaft is vertical to the table surface of the X-direction sliding table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121428156.1U CN214980056U (en) | 2021-06-25 | 2021-06-25 | Gantry type coordinate grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121428156.1U CN214980056U (en) | 2021-06-25 | 2021-06-25 | Gantry type coordinate grinding machine |
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| CN214980056U true CN214980056U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113211267A (en) * | 2021-06-25 | 2021-08-06 | 四川普什宁江机床有限公司 | Gantry type coordinate grinding machine |
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2021
- 2021-06-25 CN CN202121428156.1U patent/CN214980056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113211267A (en) * | 2021-06-25 | 2021-08-06 | 四川普什宁江机床有限公司 | Gantry type coordinate grinding machine |
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