CN209954450U - Main shaft feeding device of double-surface grinding machine - Google Patents
Main shaft feeding device of double-surface grinding machine Download PDFInfo
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- CN209954450U CN209954450U CN201920550393.1U CN201920550393U CN209954450U CN 209954450 U CN209954450 U CN 209954450U CN 201920550393 U CN201920550393 U CN 201920550393U CN 209954450 U CN209954450 U CN 209954450U
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Abstract
The utility model relates to a digit control machine tool technical field, in particular to double flat grinder's main shaft feeding device. The utility model discloses a two flat grinder's main shaft feeding device, including two feeding units that the symmetry set up, two feeding units are applied to two main shaft assembly that the symmetry set up respectively, and the feeding unit includes: the device comprises a box body, a first fixing sleeve and a second fixing sleeve which are coaxial with a main shaft assembly are arranged in the box body, the main shaft assembly can movably penetrate through the first fixing sleeve and the second fixing sleeve, and a first end of the main shaft assembly extends out of the first fixing sleeve and a second end of the main shaft assembly extends out of the second fixing sleeve; the screw rod component is connected with the main shaft assembly through a screw rod seat and is connected with the servo motor; wherein, servo motor passes through the lead screw part and drives main shaft assembly along its axial displacement. The utility model discloses a two flat grinder's main shaft feeding device can utilize the effect that plays sliding guide with the coaxial fixed cover of main shaft subassembly to improve main shaft subassembly's rigidity and feed the precision.
Description
Technical Field
The embodiment of the utility model provides a relate to digit control machine tool technical field, in particular to double flat grinder's main shaft feeding device.
Background
The vertical grinding machine in the prior art is generally provided with a fixed upright post, a spindle box containing a spindle assembly is arranged outside the fixed upright post, the spindle box is connected with the fixed upright post through a linear guide rail pair, a screw rod is also arranged outside the fixed upright post, a screw rod nut of the screw rod is connected with the spindle box, and the screw rod can be driven to rotate through a servo motor, so that the spindle box can perform linear feeding motion on a guide rail of the spindle box along with the screw rod nut through a sliding block in the linear guide rail pair.
The ball nut and ball screw are commonly used in a linear feed motion, in which a screw nut is linearly moved by rotating a screw, or a screw is linearly moved by rotating the screw nut. No matter the cooperation of screw-nut and lead screw is accurate, there always can be the clearance, even obtain zero clearance after through the pre-compaction, nevertheless through a period of use, the little wearing and tearing back appears in the interior steel ball of screw-nut, still can unavoidably appear reverse clearance when screw-nut and lead screw move. This means that the overall feeding accuracy of the machine tool is good in the initial stage, but the feeding accuracy deteriorates after a certain period of use.
Because the diameter of the grinding wheel of the double-surface grinding machine is larger than that of a common grinding machine, in the grinding machine structure in the prior art, the distance between the gravity center of a spindle box and a linear guide rail pair is far, so that the spindle of a spindle assembly is extended in a suspended manner. In addition, a motor for driving the spindle to rotate is also hung on the spindle head, and the spindle head moves together with the motor, which generally increases the weight of the spindle head. The main shaft suspension extension and the excessive mass of the main shaft assembly can cause the main shaft box and the linear guide rail pair to bear larger overturning moment, and the inclination of the main shaft assembly is easy to cause, so that the rigidity of a machine tool is influenced, and the grinding is unstable.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a two flat grinder's main shaft feeding device can utilize the effect that plays sliding guide with the coaxial fixed cover of main shaft assembly, solves the problem that the main shaft assembly hangs the extension to improve main shaft assembly's rigidity and feed the precision.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a double flat grinder's main shaft feeding device, two feeding units including the symmetry setting are applied to two main shaft assembly that the symmetry set up respectively for two feeding units, and feeding unit includes:
the device comprises a box body, a first fixing sleeve and a second fixing sleeve which are coaxial with a main shaft assembly are arranged in the box body, the main shaft assembly can movably penetrate through the first fixing sleeve and the second fixing sleeve, and a first end of the main shaft assembly extends out of the first fixing sleeve and a second end of the main shaft assembly extends out of the second fixing sleeve;
the screw rod component is connected with the main shaft assembly through a screw rod seat and is connected with the servo motor;
wherein, servo motor passes through the lead screw part and drives main shaft assembly along its axial displacement.
Further, the screw member includes:
the screw rod nut is fixed on the screw rod seat, the screw rod seat is arranged on the main shaft assembly, and the axis of the screw rod nut is parallel to the axis of the main shaft assembly;
the screw rod penetrates through the screw rod nut and is in threaded fit with the screw rod nut;
the first end of the screw rod is provided with a supporting bearing, the supporting bearing is fixed on the box body, the second end of the screw rod is provided with a worm wheel transition sleeve, a worm wheel parallel to the axis of the spindle assembly is arranged on the worm wheel transition sleeve, and the worm wheel is connected with the servo motor through the worm assembly.
Furthermore, a worm wheel shaft parallel to the axis of the main shaft assembly is arranged on the transition sleeve, and a worm wheel is arranged on the worm wheel shaft.
Further, the worm assembly includes:
the axis of the worm is perpendicular to that of the worm wheel, the worm is meshed with the worm wheel and connected with the worm, and the worm is connected with the servo motor.
Further, the screw member includes:
the screw rod nut is fixed on the screw rod seat, the screw rod seat is arranged on the main shaft assembly, and the axis of the screw rod nut is parallel to the axis of the main shaft assembly;
the screw rod penetrates through the screw rod nut and is in threaded fit with the screw rod nut;
the first end of the screw rod is provided with a supporting bearing, the supporting bearing is fixed on the box body, the second end of the screw rod is provided with a speed reducer transition sleeve, the speed reducer transition sleeve is provided with a servo motor, and an output shaft of the servo motor is coaxially arranged with the screw rod and is connected with the second end of the screw rod.
Further, the second end of lead screw passes through the speed reducer and is connected with servo motor.
Further, still include:
the balance component is connected with the spindle assembly through the balance seat.
Further, the balance member includes:
the fixed seat is fixed on the box body;
the carriage release lever, carriage release lever and main shaft assembly parallel arrangement, the movably hole that passes balanced seat of first end of carriage release lever is and be equipped with the retaining member, and the second end of carriage release lever sets up in the fixing base.
Based on the above disclosure, the utility model discloses beneficial effect lies in:
the utility model discloses biplane grinder's main shaft feeding device, because be equipped with in the box with the coaxial fixed cover of first fixed cover of main shaft subassembly and the fixed cover of second, can be when playing the effect that carries out radially spacing and support main shaft subassembly to main shaft subassembly, can also play sliding guide's effect, make main shaft subassembly can remove along its axial, thereby make main shaft subassembly's focus and its linear motion center coincidence, can not cause main shaft subassembly to bear great overturning moment, thereby improve biplane grinder's rigidity, improve main shaft subassembly's the precision of feeding.
Drawings
Fig. 1 is a schematic structural view of a feeding unit of a double-surface grinding machine according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a feeding unit of a double-surface grinder according to an embodiment of the present invention;
fig. 3 is a partial cross-sectional view of a feed unit of a double flat grinder in accordance with an embodiment of the present invention;
FIG. 4 is an isometric view of a feed unit of a double flat grinder in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural view of a feeding unit of a double-surface grinder according to another embodiment of the present invention.
Reference numerals: 1. a first fixing sleeve; 2. a second fixing sleeve; 3. a box body; 4. a through hole; 5. a screw base; 6. a balance seat; 7. a pulley member; 10. a spindle assembly; 30. a screw member; 40. a worm assembly; 50. a balance member; 101. a grinding wheel; 102. a main shaft; 103. a first bearing assembly; 104. a second bearing assembly; 105. a main shaft sleeve; 106. a third bearing assembly; 107. a rotary joint; 301. a screw rod; 302. a feed screw nut; 303. a worm gear transition sleeve; 304. a worm gear shaft; 305. connecting a bearing; 306. a worm gear; 307. a limit bearing; 308. locking the nut; 309. a support bearing; 310. a speed reducer 311 and a motor mounting seat; 312. a speed reducer coupling; 313. a speed reducer transition sleeve; 314. fixing the bearing; 401. a worm; 402. a worm support bearing; 403. a worm coupling; 404. a servo motor; 501. a fixed seat; 502. a travel bar; 503. a locking member; 701. a pulley; 702. a spline housing; 703. a pulley support bearing; 704. a pulley seat.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but not intended to limit the invention thereto.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
Because vertical biplane grinder has two main shaft assembly that the symmetry set up, consequently, the utility model discloses biplane grinder's main shaft feeding device feeds the unit including two that the symmetry set up, and two feed the unit and be applied to two main shaft assembly that the symmetry set up respectively.
The following description will be made in detail taking one of the feeding units as an example.
As shown in fig. 1-2, an embodiment of the present invention provides a feeding unit, which includes a box 3 and a screw member 30. Wherein, box 3 is equipped with first through-hole and second through-hole in vertical direction parallel, is equipped with the fixed cover 1 of first fixed cover 1 and the fixed cover 2 of second coaxial with main shaft assembly 10 in the first through-hole, and the fixed cover 2 of first fixed cover 1 and second is passed movably to main shaft assembly 10, and the fixed cover 2 of second is stretched out to the first end that main shaft assembly 10 stretched out first fixed cover 1, main shaft assembly 10. The screw rod part 30 is arranged in the second through hole of the box body, the screw rod part 30 is connected with the spindle assembly 10 through the screw rod seat 5, the screw rod part 30 is connected with the servo motor 404, the servo motor 404 can drive the spindle assembly 10 to move along the axial direction of the spindle assembly through the screw rod part 30, and the spindle assembly 10 can slide relative to the first fixing sleeve 1 and the second fixing sleeve 2.
Therefore, the embodiment of the utility model provides a because be equipped with in the box 3 with the coaxial fixed cover 1 of first fixed cover 1 of spindle unit 10 and the fixed cover 2 of second, can play the effect that carries out radially spacing and carry out the support to spindle unit 10, can also play sliding guide's effect, make spindle unit 10 remove along its axial, thereby make spindle unit 10's focus coincide rather than the linear motion center, can not cause spindle unit 10 to bear great overturning moment, thereby improve biplane grinder's rigidity, improve spindle unit 10's the precision of feeding.
In an embodiment of the present invention, the spindle assembly 10 may include a spindle 102, a spindle cover 105, a first bearing set, and a second bearing set. The first end of the main shaft 102 is connected to the grinding wheel 101, the end of the second end of the main shaft 102 is connected to the rotary joint 107, and the main shaft sleeve 105 is sleeved on the outer wall surface of the main shaft 105. A first bearing set is sleeved on a first end of the main shaft 102 and located between the main shaft 102 and the main shaft sleeve 105, wherein the first bearing set may include a first bearing assembly 103 and a second bearing assembly 104. A second bearing assembly is disposed on the main shaft 102 near the second end of the main shaft 102 and between the main shaft 102 and the main shaft sleeve 105, wherein the second bearing housing may comprise a third bearing assembly 107.
Since the first bearing assembly 103, the second bearing assembly 104, and the third bearing assembly 104 are sleeved on the main shaft 102, the main shaft 102 can freely rotate within the main shaft sleeve 105, and the main shaft 102 has excellent rotational accuracy.
In the embodiment of the present invention, the through hole 4 is axially disposed in the center of the spindle 102, the through hole 4 communicates with the center hole of the rotary joint 107, and during machining, cooling water can flow into the through hole 4 through the rotary joint 107 to supply water to the spindle assembly 10 and cool the grinding wheel 101 and the workpiece.
In the embodiment of the present invention, the second end of the main shaft 102 is provided with splines, and the main shaft 102 may be connected with the pulley component 70 through a spline pair. The pulley member 70 includes a pulley 701, a spline housing 702, a pulley support bearing 703 and a pulley block 704. The pulley seat 704 is fixed to the outside of the casing 3 and supports the pulley 701. The support bearing 703 is fixed to the pulley block 704 for supporting the spline housing 702. The spline housing 702 is fixed on the pulley 701, and the spline housing 702 is matched with the spline, so that the spline housing 702 can transmit power to the main shaft 102, and the main shaft 102 can move up and down along the spline housing 702 in the axial direction.
In the embodiment shown in fig. 1, the lead screw member 30 includes a lead screw 301, a lead screw nut 302, a worm gear transition sleeve 303, a worm gear 306, a support bearing 309, and the worm assembly 40. The screw rod nut 302 is fixed on the screw rod seat 5, the screw rod seat 5 is arranged on the spindle assembly 10, the axis of the screw rod nut 302 is parallel to the axis of the spindle assembly 10, the screw rod 301 penetrates through the screw rod nut 302, the screw rod 301 is in threaded fit with the screw rod nut 302, and the axis of the screw rod 301 is parallel to the axis of the spindle assembly 10. A first end (one end of the screw 301 close to the grinding wheel 101) of the screw 301 is provided with a support bearing 309, the support bearing 309 is fixed on the inner wall of the box body 3, a second end (one end of the screw 301 close to the rotary joint 107) of the screw 301 is provided with a worm wheel transition sleeve 303, the worm wheel transition sleeve 303 is provided with a worm wheel 306 parallel to the axis of the spindle assembly 10, and the worm wheel 306 is connected with a servo motor 404 through a worm assembly 40.
Specifically, the worm wheel transition sleeve 303 may be provided with a worm wheel shaft 304 parallel to the axis of the spindle assembly 10, and the worm wheel shaft 304 is provided with a worm wheel 306. The worm wheel shaft 304 is also sleeved with a connecting bearing 305, a limiting bearing 307 and a locking nut 308.
As shown in fig. 3, the worm assembly 40 includes a worm 401, an axis of the worm 401 is perpendicular to an axis of the worm wheel 306, the worm 401 is engaged with the worm wheel 306, and the worm 401 is connected with the servo motor 404. Specifically, the worm 401 is supported and fixed by a worm support bearing 402, and the worm 401 is connected to a servo motor 404 by a worm coupling 403. Therefore, when the servo motor 404 is operated, power can be transmitted to the lead screw 301 through the worm 401 and the worm wheel 306.
In the embodiment of the present invention, as shown in fig. 4, the balance assembly 50 is further included, and the balance assembly 50 is connected to the spindle assembly 10 through the balance seat 6. Specifically, the balance member 50 includes a fixed seat 501, a moving bar 502, and a locker 503. Wherein, fixing base 501 is fixed in on box 3, and fixing base 501 is the cylinder body of cylinder, hydro-cylinder or nitrogen cylinder, and the carriage release lever 502 sets up with main shaft assembly 10 parallel, and the hole of balanced seat 6 is passed in the movably of first end of carriage release lever 502 and be equipped with retaining member 503, and the second end of carriage release lever 502 sets up in fixing base 501.
In the embodiment of the present invention, the balance member 50 may be provided with two sets along the circumferential direction of the spindle assembly 10, that is, the two sides of the spindle assembly 10 are respectively disposed, so as to play the role of balancing the dead weight and eliminating the backlash. The balance member 50 may be a low damping cylinder, or a nitrogen balance cylinder. Through the arrangement of the balance part 50, on one hand, the dead weight of the spindle assembly 10 is balanced, a small-diameter high-precision ball screw can be selected, the load of a servo motor is reduced, and a servo feeding motor with smaller rated power is selected; on the other hand, the balancing member 50 always exerts an upward force on the spindle assembly 10, thereby eliminating backlash of the feed screw and the feed screw nut during the movement. The arrangement ensures that the whole machine has compact structure and stable work, saves the manufacturing cost and can improve the motion precision and the repeated motion precision.
The feed movement of the feed unit shown in fig. 1 proceeds as follows:
firstly, after a belt wheel 701 is connected with power (not shown), a spline sleeve 702 fixedly connected with the belt wheel is driven to rotate, the spline sleeve 702 transmits torque to a main shaft 102 through a spline, the main shaft 102 rotates in a main shaft sleeve 105, and a grinding wheel 101 is driven to rotate and grind a workpiece; when a tool needs to be fed or withdrawn, under the driving of a servo motor 404, a worm 401 is driven by a worm coupler 403 to rotate under the support of a worm support bearing 402, and further, a worm wheel 306 and a worm wheel shaft 304 connected with the worm wheel 306 are driven to rotate under the support of a connecting bearing 305 and a limiting bearing 307, the worm wheel shaft 304 is connected with a lead screw 301 through a worm wheel transition sleeve 303, so that the lead screw 301 rotates, and the lead screw nut 302 is connected with a spindle sleeve 105 through a nut seat 5, so that the spindle sleeve 105 can slide in a first fixing sleeve 1 and a second fixing sleeve 2 under the action of the lead screw 301. Meanwhile, as the spindle sleeve 105 is connected with the movable rod 502 of the balance part 50 through the balance seat 6, the movable rod 502 is also driven to move in the inner hole of the fixed seat 501. Thus, the spindle assembly 10 can move linearly upwards or downwards, and the grinding wheel 101 can rotate in the spindle sleeve 105 and move up and down along with the spindle sleeve 105, so that the grinding and feeding movement of the spindle 102 and the grinding wheel 101 is realized.
As shown in fig. 5, another embodiment of the present invention provides a feeding unit, which is different from the feeding unit of the embodiment shown in fig. 1 only in the screw member 30. As shown in fig. 5, the lead screw member 30 includes a lead screw 301, a lead screw nut 302 and a worm wheel transition sleeve 303. The screw rod nut 302 is fixed on the screw rod seat 5, the screw rod seat 5 is arranged on the spindle assembly 10, the axis of the screw rod nut 302 is parallel to the axis of the spindle assembly 10, the screw rod 301 penetrates through the screw rod nut 302, the screw rod 301 is in threaded connection with the screw rod nut 302, and the axis of the screw rod 301 is parallel to the axis of the spindle assembly 10. A supporting bearing 309 is arranged at the first end of the screw rod 301 (the end of the screw rod 301 close to the grinding wheel 101), the supporting bearing 309 is fixed on the box body 3, a fixed bearing 314 is arranged on the side wall of the screw rod 301 close to the second end (the end of the screw rod 301 close to the rotary joint 107), a speed reducer transition sleeve 313 is sleeved on the second end of the screw rod 301, a servo motor 404 is arranged on the speed reducer transition sleeve 313, and an output shaft of the servo motor 404 is coaxially arranged with the screw rod 301 and is connected with the second end of the screw rod 301. Wherein, the second end of the screw rod 301 is connected with the servo motor 404 through the speed reducer 310.
Specifically, a motor mounting seat 311 is arranged on the outer side of the box 3, the servo motor 404 is fixed on the motor mounting seat 311 and is connected with a speed reducer 310 through a speed reducer coupling 312, and the speed reducer 310 is connected with the screw 301 through a speed reducer transition sleeve 312.
In the embodiment of the present invention, the speed reducer 310 can be a large reduction ratio precision speed reducer, the reduction ratio is 50-200, the backlash is less than 3 arc minutes, and the speed reducer 310 is in a flange output form.
The feed movement of the feed unit shown in fig. 5 proceeds as follows:
the servo motor 404 is started by receiving a signal, transmits power to the speed reducer 310 through the speed reducer coupling 312, the speed reducer 310 transmits power to the speed reducer transition sleeve 313 and the screw rod 301 after speed reduction and torque increase, the screw rod 301 rotates under the support of the fixed bearing 314, and under the action of the screw rod 301, the spindle sleeve 105 can slide in the first fixed sleeve 1 and the second fixed sleeve 2 because the screw rod nut 302 is connected with the spindle sleeve 105 through the nut seat 5. Meanwhile, as the spindle sleeve 105 is connected with the movable rod 502 of the balance part 50 through the balance seat 6, the movable rod 502 is also driven to move in the inner hole of the fixed seat 501.
To sum up, the utility model discloses double flat grinder's main shaft feeding device arranges the main shaft subassembly inside fixed box in, be equipped with in the box with the coaxial fixed cover of first fixed cover of main shaft subassembly and the fixed cover of second, can play the effect that carries out radial spacing and support to the main shaft subassembly, can also play sliding guide's effect, the main shaft cover forms sliding guide with fixed cover is vice, moving part this moment is the focus of main shaft subassembly and coincidence rather than the center of motion, there is not overturning moment, thereby improve double flat grinder's bulk rigidity, the weight of the double flat grinder,
The utility model discloses two flat grinder's main shaft feeding device enables the motor that the drive main shaft is rotatory and arranges fixed box in, and need not hang follow motion on the main shaft assembly to reduce moving part's weight, thereby reduce the load of feeding motor.
The embodiment of the utility model provides an in through balancing unit's setting, realize the dead weight and the gap eliminating effect of balanced spindle unit: on one hand, a small-diameter high-precision ball screw can be used, the load of a servo motor is reduced, and a servo feeding motor with smaller rated power is selected; on the other hand, the balance part always exerts an upward acting force on the main shaft assembly, so that the reverse gap between the screw rod and the nut is eliminated. Therefore, the whole machine has compact structure and stable work, saves the manufacturing cost and can improve the motion precision and the repeated motion precision.
Although the above-described embodiment has been described with respect to a vertical double-surface grinding machine in which the grinding wheel has a rotation axis extending in the vertical direction, the present invention is not limited to this, and can be applied to a horizontal double-surface grinding machine in which the grinding wheel has a rotation axis extending in the horizontal direction, for example.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (8)
1. A spindle feeding device of a double surface grinding machine, comprising two feeding units symmetrically arranged, respectively applied to two spindle assemblies (10) symmetrically arranged, characterized in that the feeding units comprise:
the spindle assembly comprises a box body (3), wherein a first fixing sleeve (1) and a second fixing sleeve (2) which are coaxial with the spindle assembly (10) are arranged in the box body (3), the spindle assembly (10) movably penetrates through the first fixing sleeve (1) and the second fixing sleeve (2), and a first end of the spindle assembly (10) extends out of the first fixing sleeve (1) and a second end of the spindle assembly (10) extends out of the second fixing sleeve (2);
the screw rod component (30), the screw rod component (30) is connected with the spindle assembly (10) through a screw rod seat (5), and the screw rod component (30) is connected with a servo motor (404);
the servo motor (404) drives the spindle assembly (10) to move along the axial direction of the spindle assembly through the screw rod component (30).
2. The spindle feeding apparatus of a twin surface grinding machine according to claim 1, wherein the screw member (30) includes:
the screw rod nut (302), the screw rod nut (302) is fixed on the screw rod seat (5), the screw rod seat (5) is arranged on the main shaft assembly (10), and the axis of the screw rod nut (302) is parallel to the axis of the main shaft assembly (10);
the lead screw (301), the lead screw (301) penetrates through the lead screw nut (302), and the lead screw (301) is in threaded fit with the lead screw nut (302);
the first end of lead screw (301) is equipped with support bearing (309), support bearing (309) are fixed in on box (3), the second end of lead screw (301) is equipped with worm wheel transition cover (303), be equipped with on worm wheel transition cover (303) with the parallel worm wheel (306) of axis of spindle unit (10), worm wheel (306) pass through worm subassembly (40) with servo motor (404) are connected.
3. The spindle feeding device of the twin surface grinding machine according to claim 2, wherein a worm wheel shaft (304) parallel to the axis of the spindle assembly (10) is provided on the worm wheel transition sleeve (303), and the worm wheel (306) is provided on the worm wheel shaft (304).
4. The spindle feed apparatus of a twin surface grinder as set forth in claim 2, wherein the worm assembly (40) includes:
the axis of the worm (401) is perpendicular to the axis of the worm wheel (306), the worm (401) is meshed with the worm wheel (306), and the worm (401) is connected with the servo motor (404).
5. The spindle feeding apparatus of a twin surface grinding machine according to claim 1, wherein the screw member (30) includes:
the screw rod nut (302), the screw rod nut (302) is fixed on the screw rod seat (5), the screw rod seat (5) is arranged on the main shaft assembly (10), and the axis of the screw rod nut (302) is parallel to the axis of the main shaft assembly (10);
the lead screw (301), the lead screw (301) penetrates through the lead screw nut (302), and the lead screw (301) is in threaded fit with the lead screw nut (302);
the first end of the screw rod (301) is provided with a supporting bearing (309), the supporting bearing (309) is fixed on the box body (3), the second end of the screw rod (301) is provided with a speed reducer transition sleeve (313), the speed reducer transition sleeve (313) is provided with a servo motor (404), and an output shaft of the servo motor (404) is coaxially arranged with the screw rod (301) and is connected with the second end of the screw rod (301).
6. The spindle feeding device of a twin surface grinder as set forth in claim 5, wherein the second end of the screw (301) is connected to the servo motor (404) through a speed reducer (310).
7. The spindle feeding apparatus of a twin surface grinding machine according to claim 1, further comprising:
a balance member (50), the balance member (50) being connected to the spindle assembly (10) by a balance socket (6).
8. The spindle feeding device of a twin surface grinding machine according to claim 7, wherein the balancing member (50) includes:
the fixing seat (501), the said fixing seat (501) is fixed on said container body (3);
the movable rod (502) and the spindle assembly (10) are arranged in parallel, the first end of the movable rod (502) movably penetrates through the inner hole of the balance seat (6) and is provided with a locking piece (503), and the second end of the movable rod (502) is arranged in the fixed seat (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550393.1U CN209954450U (en) | 2019-04-22 | 2019-04-22 | Main shaft feeding device of double-surface grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920550393.1U CN209954450U (en) | 2019-04-22 | 2019-04-22 | Main shaft feeding device of double-surface grinding machine |
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| CN209954450U true CN209954450U (en) | 2020-01-17 |
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| CN201920550393.1U Active CN209954450U (en) | 2019-04-22 | 2019-04-22 | Main shaft feeding device of double-surface grinding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968155A (en) * | 2019-05-12 | 2019-07-05 | 宇环数控机床股份有限公司 | A kind of loading device for single side accurate grinding grinding machine |
| CN114714218A (en) * | 2022-05-12 | 2022-07-08 | 龙口市亨嘉智能装备有限公司 | Coaxial double-control synchronous grinding device |
-
2019
- 2019-04-22 CN CN201920550393.1U patent/CN209954450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109968155A (en) * | 2019-05-12 | 2019-07-05 | 宇环数控机床股份有限公司 | A kind of loading device for single side accurate grinding grinding machine |
| CN114714218A (en) * | 2022-05-12 | 2022-07-08 | 龙口市亨嘉智能装备有限公司 | Coaxial double-control synchronous grinding device |
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