CN209239071U - A kind of machining center spindle box - Google Patents
A kind of machining center spindle box Download PDFInfo
- Publication number
- CN209239071U CN209239071U CN201822122437.9U CN201822122437U CN209239071U CN 209239071 U CN209239071 U CN 209239071U CN 201822122437 U CN201822122437 U CN 201822122437U CN 209239071 U CN209239071 U CN 209239071U
- Authority
- CN
- China
- Prior art keywords
- spindle box
- pedestal
- machining center
- box body
- transmission mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Machine Tool Units (AREA)
Abstract
The utility model discloses a kind of machining center spindle boxes, including spindle box body and pedestal, spindle box body and pedestal are integrally formed, the sleeve for installing main shaft is provided in spindle box body, machining center spindle box is under the drive of the transmission mechanism, it is movable in a vertical direction, the distance ratio of pedestal height along the vertical direction and bushing core axis to pedestal is between 0.8~1.0；Compensation balance device is provided on pedestal, compensation balance device is used for the weight of balancing main shaft case, and compensation balance device includes bracket, and balance cylinder block and piston rod are provided on bracket, and piston rod tail portion is provided with floating junction, and floating junction is connect with spindle box pedestal.The utility model improves itself rigid of spindle box, compensation balance device is additionally arranged on the basis of existing spindle box, it is capable of the weight of balancing main shaft case well, the abrasion of transmission mechanism ball-screw is reduced, the precision stability of transmission mechanism ball-screw is kept and reduces the load of transmission mechanism servo motor.
Description
Technical field
The utility model relates to numerical control machining center fields, and in particular to a kind of machining center spindle box
Background technique
China's numerical control machining center industry just develops towards high speed, efficient, high-precision direction.Piece surface retrofit is got over
Come more universal, machined surface roughness requirements also increase accordingly, and the speed of mainshaft of machining center is sent out at a high speed towards 10000rpm or more
It opens up, a large amount of heat can be generated under high-speed rotation, heat can occur for the spindle box of the principle based on rising-heat contracting-cold, one of main key component
Strain.And conventional master spindle case passes through the outer periphery of main spindle box body and pedestal junction, adds the reinforcement rigid design of the short gusset of root,
Its effect is limited, directly affects the complete machine precision and service performance of machining center in actual use.
It, can be right due to the own wt of spindle box and during existing spindle box moves up and down with transmission mechanism
The ball-screw of transmission mechanism causes biggish abrasion, and increases the load of transmission mechanism servo motor.In the prior art mostly not
Balance system is set, or by the way of mechanical balance and hydro-cushion, but is all haveed the defects that certain:
Mechanical balance: setting balance weight is identical as the weight of spindle box, then with chain or steel cable by balance weight and master
Axle box connects, and such method can occupy biggish installation space, also will increase the overall weight of lathe, also increases simultaneously
The total inertia of spindle box, the speed, acceleration and flexibility for moving it are restricted.
Hydro-cushion: the opposite direction along spindle box gravity applies a thrust equal thereto, this thrust is by hydraulic cylinder
It completes, the problems such as such method can generate noise, leakage, vibration and temperature rise, while when spindle box vertically moves speed, accelerates
When spending larger, it is easy to appear hydraulic shock and driving overload, rapid pressure drop is balanced, is not able to satisfy wanting for modern rapid processing
It asks, thus phenomena such as the abrasion of driving member can not be protected.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of machining center spindle boxes, on the basis of existing spindle box
On further improve itself rigidity of spindle box, and compensation balance device, energy are additionally arranged on the basis of existing spindle box
The weight of enough balancing main shaft casees well, reduces the abrasion of transmission mechanism ball-screw, keeps the ball-screw of transmission mechanism
Precision stability, and lower the load of transmission mechanism servo motor.
In order to solve the above-mentioned technical problem, the utility model provides a kind of machining center spindle box, including spindle box case
Body and pedestal, the spindle box body and pedestal are integrally formed, and the set for installing main shaft is provided in the spindle box body
Cylinder, the machining center spindle box under the drive of the transmission mechanism, are movable in a vertical direction, the height of the pedestal along the vertical direction
The distance ratio of degree and the bushing core axis to the pedestal is between 0.8~1.0；It is flat that compensation is provided on the pedestal
Weigh device, and the compensation balance device is used for the weight of balancing main shaft case, and the compensation balance device includes bracket, in the branch
Balance cylinder block and piston rod are provided on frame, the piston rod tail portion is provided with floating junction, the floating junction and the master
The connection of axle box pedestal.
It further comprise that the spindle box body two sides are provided with for increasing in one preferred embodiment of the utility model
The siding of reinforcement degree, the siding and the spindle box body are integrally formed, and have been provided projectingly " well " font on the siding and have been added
Gusset is separated into several grooves by strong reinforcing bar, " well " the font stiffener.
It further comprise being provided in the groove through the siding in one preferred embodiment of the utility model
Technique through-hole.
It further comprise that interior reinforcing rib is provided in the spindle box body in one preferred embodiment of the utility model
Plate, the interior stiffener plate run through the spindle box body, and described interior stiffener plate one end is connected on the pedestal, the other end
Extend to the sleeve.
It further comprise there are two the spindle box body two sides are respectively set in one preferred embodiment of the utility model
External reinforcing ribs plate, the external reinforcing ribs plate are arranged in the sleeve two sides, and the external reinforcing ribs plate is right-angled trapezium, the right angle
Trapezoidal right-angle side is arranged on pedestal, and the bevel edge of the right-angled trapezium extends to the spindle box body edge.
It further comprise being provided with several techniques on the external reinforcing ribs plate to lead in one preferred embodiment of the utility model
Hole.
It further comprise that the inner cavity of the balance cylinder block and pressure accumulation steel cylinder connect in one preferred embodiment of the utility model
It is logical.
It further comprise the tie point of the floating junction Yu the spindle box in one preferred embodiment of the utility model
On the center line of the spindle box.
It further comprise being provided on the pedestal for connecting with transmission mechanism in one preferred embodiment of the utility model
The feed screw nut seat connect.
The utility model has the beneficial effects that
One, the bending resistance for enhancing spindle box, torsional rigidity；
In the prior art, when the design of headstock in vertical machining center, without specific between spindle box body and pedestal
Size requirement when main shaft high speed rotation in spindle box, can generate big when the length of spindle box ontology and height mismatch
The heat of amount, due to the principle of rising-heat contracting-cold, the spindle box of this kind of reinforcing plate structure is easily-deformable, is especially being parallel to Y-axis axis
In Y-Z vertical plane, the thermal walking value of main-shaft axis is changed greatly, and directly affects the complete machine precision and service performance of lathe.
The spindle box of the utility model, be arranged the pedestal height and the bushing core axis to the pedestal away from
It is between 0.8~1.0 from ratio, the accurate height for matching pedestal is at a distance from the bushing core axis to the pedestal, warp
Overtesting verifying, in the Y-Z vertical plane for being parallel to Y-axis axis, the thermal walking value of main-shaft axis reduces 1/2, effectively improves
The complete machine precision and service performance of lathe, greatly strengthens bending resistance, the torsional rigidity of spindle box.
Secondly, compensation balance device is provided on the pedestal of spindle box, be capable of the own wt of balancing main shaft case, reduce
The abrasion of the ball-screw of transmission mechanism.
Traditional mode of production and in the prior art is not provided with balance system, or the method using mechanical balance and hydro-cushion more.
Mechanical balance: setting balance weight is identical as the weight of spindle box, then with chain or steel cable by balance weight and master
Axle box connects, and such method can occupy biggish installation space, also will increase the overall weight of lathe, also increases simultaneously
The total inertia of spindle box, the speed, acceleration and flexibility for moving it are restricted.
Hydro-cushion: the opposite direction along spindle box gravity applies a thrust equal thereto, this thrust is by hydraulic cylinder
It completes, the problems such as such method can generate noise, leakage, vibration and temperature rise, while when spindle box vertically moves speed, accelerates
When spending larger, it is easy to appear hydraulic shock and driving overload, rapid pressure drop is balanced, is not able to satisfy wanting for modern rapid processing
It asks, thus phenomena such as the abrasion of driving member can not be protected.
Compared with the prior art, the compensation balance device that the present invention uses, has the advantage that
1, it is not necessarily to dynamical system, to save the energy.
2, the production capacity of machine is improved rapidly, it is noiseless.
3, the quality of lathe is improved, precision amplitude is increased, extends the lathe service life.
4, cost is reduced, it is non-maintaining after installation.
Newly-increased compensation balance device is capable of the weight of balancing main shaft case well, reduces the mill of transmission mechanism ball-screw
Damage, keep the precision stability of the ball-screw of transmission mechanism, make spindle box have dynamic capability of fast response, can and effectively
The service life for extending transmission mechanism reduces the load of transmission mechanism servo motor.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the spindle box of the utility model；
Fig. 3 is the internal view of the spindle box of the utility model.
Figure label explanation: 1, spindle box body；2, pedestal；3, sleeve；4, siding；5, " well " font stiffener；6,
Technique through-hole；7, external reinforcing ribs plate；8, interior stiffener plate；9, feed screw nut seat；10, bracket；11, floating junction；12, compensating cylinder
Body；13, piston rod.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Referring to Fig.1 shown in -3, an embodiment of the machining center spindle box of the utility model, for install electro spindle or
Direct-connected main shaft, including spindle box body 1 and pedestal 2, the spindle box body 1 are integrally formed with pedestal 2, the spindle box case
Body 1 and pedestal 2 are made of gray cast iron, and the sleeve 3 for installing main shaft is provided in the spindle box body 1, and the sleeve 3 is
Circular sleeve, the sleeve 3 are arranged through the spindle box body 1, and the main shaft is by bolt installation locking in the master
On axle box cabinet 1,1 two sides of spindle box body are provided with the siding 4 for increasing intensity, the siding 4 and the master
Axle box cabinet 1 is integrally formed, and the machining center spindle box under the drive of the transmission mechanism, is movable in a vertical direction, the seat
The height of body 2 along the vertical direction is H, and the distance of 3 central axis of sleeve to the pedestal 2 is L, and the ratio of the H/L is
Between 0.8~1.0；Compensation balance device is provided on the pedestal 2, the compensation balance device is used for the weight of balancing main shaft case
Amount, the compensation balance device includes bracket 10, and balance cylinder block 12 and piston rod 13, the work are provided on the bracket 10
13 tail portion of stopper rod is provided with floating junction 11, and the floating junction 11 is connect with the pedestal 2.
Specifically, " well " font stiffener 5 has been provided projectingly on the siding 4, " well " the font stiffener 5 will
Siding 4 is separated into several grooves, and " well " the font stiffener 5 further reinforces siding 4 from side；The groove
It is inside provided with the technique through-hole 6 through the siding 4, under the premise of not influencing spindle box rigid, technique through-hole 6 was both
Conducive to casting technique, the assembly of pipeline, and alleviate the overall weight of siding 4.
It specifically, is the intensity for further strengthening the spindle box body 1, in the inside of the spindle box body 1 and outer
Side is respectively arranged with interior stiffener plate 8 and external reinforcing ribs plate 7.
As shown in figure 3, the interior stiffener plate 8 runs through the spindle box body 1, interior 8 one end of stiffener plate connection
On the pedestal 2, the other end extends to the sleeve 3, also offers several technique through-holes 6 in the interior stiffener plate 8,
Under the premise of not influencing interior stiffener plate Final 8 degree, technique through-hole 6 had not only been conducive to the assembly of casting technique, pipeline, but also reduced interior add
The overall weight of strengthening tendons plate 8.
The external reinforcing ribs plate 7 is arranged in 3 two sides of sleeve, and the external reinforcing ribs plate 7 is right-angled trapezium, the right angle
Trapezoidal right-angle side is arranged on pedestal 2, and the bevel edge of the right-angled trapezium extends to 1 edge of spindle box body, described outer
Also several technique through-holes 6 are offered in stiffener plate 7, under the premise of not influencing external reinforcing ribs plate intensity 7, multiple technique through-holes
6 be not only conducive to the assembly of casting technique, pipeline, but also reduced the overall weight of external reinforcing ribs plate 7.
In the utility model, the compensation balance device is the working principle using accumulator, controls the compensating cylinder 12
With piston rod 13, cooperate the rise and fall of transmission mechanism servo motor, the weight of balancing main shaft case.Add when transmission mechanism driving is described
When work central principal axis case moves downward, the oil liquid volume of 12 inner cavity of balance cylinder block is reduced, the oil liquid in pressure accumulation steel cylinder
Volume increases, and the gas in pressure accumulation steel cylinder is compressed, and gas pressure increases, pressure energy storage, is added by piston rod 13 to described
Work central principal axis case applies a upward pulling force to be prevented from being driven for balancing the weight of the machining center spindle box itself
The inertia that mechanism drives the machining center spindle box to move downward is excessive, reduces the abrasion of the ball-screw of transmission mechanism, protects
Hold its precision stability.When transmission mechanism drives the machining center spindle box to move upwards, the balance cylinder block 12
The oil liquid volume of inner cavity increases, and the oil liquid volume in pressure accumulation steel cylinder reduces, and the gas expansion in pressure accumulation steel cylinder, gas releases stress
Can, pressure reduces, and applies a downward pressure to the spindle box by piston rod 13, for balancing the weight of the spindle box
Amount, the inertia for preventing transmission mechanism from the spindle box being driven to move upwards is excessive, lowers the load of transmission mechanism servo motor, subtracts
The abrasion of the ball-screw of few transmission mechanism.
Specifically, the inner cavity of the balance cylinder block 12 is connected to pressure accumulation steel cylinder, and a pressure accumulation steel cylinder is instead of traditional 3-4
A Hydraulic Elements just have preferable counterbalance effect with smaller installation space, and pressure accumulation steel cylinder need to be only fixed to the inner cavity of column
, save the occupied area of lathe.
Specifically, the tie point of the floating junction 11 and the pedestal 2 is located on the center line of the pedestal 2, makes position
It is consistent in the weight of the spindle box body 1 of tie point two sides, it can prevent equilibrant force from deviating during balancing in this way, driver
It is configured to side wear.
Specifically, the feed screw nut seat 9 for connecting with transmission mechanism, the feed screw nut are provided on the pedestal 2
Ball-screw is connected on seat 9, the transmission mechanism drives the ball screw turns, to drive the machining center main shaft
Case moves up and down.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (9)
1. a kind of machining center spindle box, including spindle box body and pedestal, the spindle box body and pedestal are integrally formed, institute
State the sleeve being provided in spindle box body for installing main shaft, which is characterized in that the machining center spindle box is in driver
It under the driving of structure, is movable in a vertical direction, the height of the pedestal along the vertical direction and the bushing core axis to the seat
The distance ratio of body is between 0.8~1.0；Compensation balance device is provided on the pedestal, the compensation balance device is used for
The weight of balancing main shaft case, the compensation balance device includes bracket, is provided with balance cylinder block and piston rod on the bracket,
The piston rod tail portion is provided with floating junction, and the floating junction is connect with the spindle box pedestal.
2. machining center spindle box as described in claim 1, which is characterized in that the spindle box body two sides are provided with use
In the siding for increasing intensity, the siding and the spindle box body are integrally formed, and have been provided projectingly " well " word on the siding
Siding is separated into several grooves by type stiffener, " well " the font stiffener.
3. machining center spindle box as claimed in claim 2, which is characterized in that be provided in the groove through the wall
The technique through-hole of plate.
4. machining center spindle box as described in claim 1, which is characterized in that be provided with interior reinforcement in the spindle box body
Gusset, the interior stiffener plate run through the spindle box body, and described interior stiffener plate one end is connected on the pedestal, another
End extends to the sleeve.
5. machining center spindle box as described in claim 1, which is characterized in that the spindle box body two sides are respectively arranged with
Two external reinforcing ribs plates, the external reinforcing ribs plate are arranged in the sleeve two sides, and the external reinforcing ribs plate is right-angled trapezium, described
The right-angle side of right-angled trapezium is arranged on pedestal, and the bevel edge of the right-angled trapezium extends to the spindle box body edge.
6. machining center spindle box as claimed in claim 5, which is characterized in that be provided with several works on the external reinforcing ribs plate
Skill through-hole.
7. machining center spindle box as described in claim 1, which is characterized in that the inner cavity of the balance cylinder block and pressure accumulation steel cylinder
Connection.
8. machining center spindle box as described in claim 1, which is characterized in that the connection of the floating junction and the pedestal
Point is located on the center line of the pedestal.
9. machining center spindle box as described in claim 1, which is characterized in that be provided with and be used for and driver on the pedestal
The feed screw nut seat of structure connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122437.9U CN209239071U (en) | 2018-12-17 | 2018-12-17 | A kind of machining center spindle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822122437.9U CN209239071U (en) | 2018-12-17 | 2018-12-17 | A kind of machining center spindle box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209239071U true CN209239071U (en) | 2019-08-13 |
Family
ID=67533491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822122437.9U Active CN209239071U (en) | 2018-12-17 | 2018-12-17 | A kind of machining center spindle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209239071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714929A (en) * | 2020-09-27 | 2021-11-30 | 泉州市海恩德机电科技发展有限公司 | Improved grinding host |
-
2018
- 2018-12-17 CN CN201822122437.9U patent/CN209239071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714929A (en) * | 2020-09-27 | 2021-11-30 | 泉州市海恩德机电科技发展有限公司 | Improved grinding host |
| CN113714929B (en) * | 2020-09-27 | 2022-12-20 | 泉州市海恩德机电科技发展有限公司 | Improved grinding host |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209239071U (en) | A kind of machining center spindle box | |
| CN104384939B (en) | A kind of Horizontal machining center column with W shape gussets | |
| CN201329516Y (en) | Linear motor driven high-speed feed unit | |
| CN209174911U (en) | A kind of direct-connected main shaft assemble mechanism | |
| CN201874758U (en) | Ant-vibration main engine base of wind generating set | |
| CN104374519A (en) | Force generator for in-situ calibration of thrust rack | |
| CN109317698A (en) | A kind of direct-connected main shaft assemble mechanism | |
| CN202106238U (en) | Balancing and compensating device for numerical control landing milling process center | |
| CN104353848B (en) | The assembling structure of headstock in vertical machining center | |
| CN106015487A (en) | Novel guide device adapted to high-power electro-mechanical actuator | |
| CN115781314A (en) | Overhead gearbox ram structure of gantry machining center | |
| CN102121503A (en) | Plum coupling | |
| CN201151205Y (en) | Installation mechanism of grating ruler for measuring slipper travel of numerical control servo press | |
| CN207464685U (en) | It forges a knife with dynamic with lathe ray machine | |
| CN209239074U (en) | The high rotating accuracy static pressure electric main shaft of high rigidity | |
| CN108819643B (en) | Active suspension with coaxial rubber spring and active power actuator | |
| CN217558956U (en) | Vibration damper of marine gearbox | |
| CN203003593U (en) | Machine tool automatic balancing device | |
| CN207464684U (en) | It is a kind of to use machine pillar with dynamic forge a knife | |
| CN112935850B (en) | Saddle device and vertical machining center | |
| CN201253963Y (en) | High velocity ram machine | |
| CN219379716U (en) | Overhead gear box ram structure of gantry machining center | |
| CN108608215A (en) | A kind of Y-axis movable pulley type balanced structure of precise horizontal machining center | |
| CN220947419U (en) | Connecting rod of automobile air damper | |
| CN204339415U (en) | With the Z axis feed drive gearing of counterweigh |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |