CN207272870U - A kind of high precision electro spindle thermal detection device - Google Patents
A kind of high precision electro spindle thermal detection device Download PDFInfo
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- CN207272870U CN207272870U CN201721212440.9U CN201721212440U CN207272870U CN 207272870 U CN207272870 U CN 207272870U CN 201721212440 U CN201721212440 U CN 201721212440U CN 207272870 U CN207272870 U CN 207272870U
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- measuring plate
- mover
- main shaft
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Abstract
The utility model discloses a kind of high precision electro spindle thermal detection device, main shaft, Measuring plate including sleeve, for being connected with driving mechanism, for fixes sleeve embrace folder, for detecting Measuring plate in the displacement sensor of position on main shaft and regulating device for adjusting distance between displacement sensor and Measuring plate, main shaft is rotatably installed in sleeve, Measuring plate is fixed on the lower end of main shaft, chuck is embraced to be connected on sleeve, displacement sensor is located at the top of Measuring plate, displacement sensor is connected with regulating device, and regulating device is with embracing clamping connect.The utility model can improve the precision of measurement thermal expansion length, improve the quality of product, reduce fraction defective.
Description
Technical field
It the utility model is related to a kind of high precision electro spindle technology, more particularly to a kind of detection of high precision electro spindle thermal
Device.
Background technology
At present, core component of the high precision electro main shaft as numerically-controlled machine tool, makes lathe realize Zero-drive Chain, substantially increases
The machining accuracy and efficiency of lathe.With the rotating speed and power ascension of electro spindle, the caloric value of main shaft is also continuously increased, its axial direction
Thermal stretching it is also increasing.The part required for some sizes in depth direction, depth direction elongation can seriously affect
Machining accuracy, therefore need to make detection to high precision electro spindle thermal using detection device.
But there are following defect for existing high precision electro spindle thermal detection device：
Thermal stretching measurement method is mainly to cover installation noncontacting proximity sensor by the spindle end held under a bushing at present
Thermal expansion length is measured, digital control system can carry out real-Time Compensation according to the displacement variable measured to main shaft, to improve adding for lathe
Work precision.But after spindle heat generation, main shaft can integrally be extended to depth direction, and be installed on the contactless biography that spindle end covers
Sensor can only measure the elongation of mover relative sleeve, not be overall elongation of the main shaft in depth direction, therefore measurement accuracy is not
It is enough accurate, cause the product quality produced relatively low, bad rate is higher.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high precision electro spindle thermal
Detection device, it is possible to increase measurement accuracy, improves the quality of product, reduces fraction defective.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of high precision electro spindle thermal detection device, including sleeve, the main shaft for being connected with driving mechanism, measurement
Disk, for fixes sleeve embrace folder, for detect Measuring plate in the displacement sensor of position on main shaft and for adjust displacement pass
The regulating device of distance between sensor and Measuring plate, the main shaft are rotatably installed in sleeve, and the Measuring plate is fixed on master
The lower end of axis, described armful of chuck are connected on sleeve, and institute's displacement sensors are located at the top of Measuring plate, and institute's displacement sensors are with adjusting
Regulating device connects, and the regulating device is with embracing clamping connect.
Further, the main shaft includes mover, stator, upper bearing (metal), lower bearing and thrust bearing, the Measuring plate installation
Being rotated synchronously in mover lower end and with mover, the mover is rotatably installed on stator, and the stator is fixed on sleeve,
The upper bearing (metal), lower bearing are respectively arranged in the both ends of mover, and the thrust bearing is installed on mover and positioned at lower bearing
One end.
Further, one end of the sleeve is covered with protective cover, the protective cover with embrace it is clamping connect, the protective cover top
Portion offers the opening for being passed through for Measuring plate, is formed between the opening, protective cover, sleeve and is used to supply Measuring plate along mover axis
The active chamber of line direction movement.
Further, the regulating device includes coarse adjustment mechanism, micro-adjusting mechanism and fixed block, and the coarse adjustment mechanism is with embracing folder
Affixed, institute's displacement sensors are fixed on micro-adjusting mechanism, and the fixed block is connected with coarse adjustment mechanism and micro-adjusting mechanism respectively.
Further, the coarse adjustment mechanism includes fixed connecting plate, fixing screws, for making fixed block toward remote or lean on
Adjustable plate, the first sliding groove, the second sliding slot, adjusting screw and the adjusting nut of nearly Measuring plate direction movement, the fixed connecting plate
It is locked in and is embraced on folder by fixing screws, the adjustable plate and fixed block is affixed, pass through between the adjustable plate and fixed connecting plate
It is threadedly coupled, the first sliding groove is fixed on fixed connecting plate, and second sliding slot is fixed on adjustable plate, the adjusting spiral shell
Nail is inserted on adjustable plate and fixed connecting plate, and the adjusting nut is installed on the side of fixed connecting plate, the adjusting screw
It is spirally connected with adjusting nut.
Further, the micro-adjusting mechanism includes being used to make displacement sensor move toward away from or close to Measuring plate direction
Active plate, pin, positioning screw, fine setting through hole, micrometer adjusting screw and bullet for jacking up or pulling down fixed block one end
Reed, the active plate are connected by pin with fixed block, and the active plate can or up time counterclockwise around pin
Pin rotates, and institute's displacement sensors are locked on active plate by positioning screw, and the fine setting through hole is positioned at flexible connection
On plate and below the fixed block, the micrometer adjusting screw be connected with fixed block and active plate respectively, the micrometer adjusting screw and
Fine setting through hole is spirally connected, and the spring leaf is installed between active plate and fixed block, and the spring leaf and micrometer adjusting screw distinguish position
In the both sides of pin.
Further, the active plate includes the first connector and the second connector, first connector and
Two connectors offer arc-shaped through-hole, screw channel, and the arc-shaped through-hole is separated by with screw conduits, first connector and
It is connected through a screw thread between second connector；During the first connector and the second connector connection, two arc-shaped through-holes, which are formed, to be supplied
The mounting hole that displacement sensor passes through, two screw channels form the screw conduits for being used for passing through for positioning screw, the positioning
Screw is connected through a screw thread with screw conduits.
Further, the side of the protective cover offers the passage for being passed through for active plate.
Further, the mover is provided with cutter on one end of Measuring plate and is rotated synchronously with mover.
Compared with prior art, the beneficial effects of the utility model are：
By setting sleeve, main shaft, Measuring plate, armful folder, displacement sensor and regulating device, main shaft is rotatably mounted
In in sleeve, driving mechanism drive shaft rotates, and Measuring plate is fixedly installed in the lower end of main shaft, and Measuring plate can be with main shaft
Rotate synchronously, an armful chuck is connected on sleeve and then is fixed on sleeve and embrace on folder, one end of regulating device is clamping fixed with embracing
Connection, displacement sensor is installed at the top of Measuring plate, displacement sensor is detected position of the Measuring plate on main shaft, from
And it is capable of detecting when thermal expansion length of the main shaft in depth direction, displacement sensor is connected with regulating device, and then can utilize
Regulating device adjusts distance between displacement sensor and Measuring plate so that the thermal expansion length that displacement sensor detects is more accurate, has
Help improve the quality of product, reduce the fraction defective of product.
Brief description of the drawings
Fig. 1 is that a kind of sectional structure of embodiment shows in a kind of high precision electro spindle thermal detection device of the utility model
It is intended to；
Fig. 2 is a kind of structural representation of embodiment in a kind of high precision electro spindle thermal detection device of the utility model
Figure；
Fig. 3 is a kind of positive structure diagram of embodiment in the utility model micro-adjusting mechanism；
Fig. 4 is a kind of schematic cross-sectional view of embodiment in the utility model micro-adjusting mechanism；
Fig. 5 is a kind of overlooking the structure diagram of embodiment in the utility model micro-adjusting mechanism.
In figure：1st, sleeve；2nd, main shaft；3rd, Measuring plate；4th, folder is embraced；5th, displacement sensor；6th, regulating device；21st, mover；
22nd, stator；23rd, upper bearing (metal)；24th, lower bearing；25th, thrust bearing；7th, protective cover；71st, it is open；72nd, active chamber；61st, coarse adjustment
Mechanism；62nd, micro-adjusting mechanism；63rd, fixed block；611st, fixed connecting plate；612nd, fixing screws；613rd, adjustable plate；614th, second slide
Groove；615th, adjusting screw；616th, adjusting nut；621st, active plate；622nd, pin；623rd, positioning screw；624th, fine setting is logical
Hole；625th, micrometer adjusting screw；626th, spring leaf；6211st, mounting hole；6212nd, screw conduits；8th, cutter.
Embodiment
In the following, with reference to attached drawing and embodiment, the utility model is described further, it is necessary to explanation is,
On the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
A kind of high precision electro spindle thermal detection device as shown in Figure 1, including sleeve 1, for connecting with driving mechanism
The main shaft 2 that connects, Measuring plate 3, for fixes sleeve 1 embrace folder 4, for detecting Measuring plate 3 in the displacement sensing of position on main shaft 2
Device 5 and the regulating device 6 for adjusting distance between displacement sensor 5 and Measuring plate 3, main shaft 2 are rotatably installed on sleeve 1
Interior, Measuring plate 3 is fixed on the lower end of main shaft 2, embraces folder 4 and is socketed on sleeve 1, and displacement sensor 5 is located at the top of Measuring plate 3, position
Displacement sensor 5 is connected with regulating device 6, and regulating device 6 is affixed with embracing folder 4.
As shown in Figure 1, by setting sleeve 1, main shaft 2, Measuring plate 3, armful folder 4, displacement sensor 5 and regulating device 6, will
Main shaft 2 is rotatably installed in sleeve 1, and driving mechanism drive shaft 2 rotates, and Measuring plate 3 is fixedly installed under main shaft 2
End, Measuring plate 3 can be rotated synchronously with main shaft 2, an armful folder 4 is socketed on sleeve 1 and then is fixed on sleeve 1 and embraced on folder 4,
One end of regulating device 6 is fixedly connected with embracing folder 4, displacement sensor 5 is installed on the top of Measuring plate 3, makes displacement sensor 5
Position of the Measuring plate 3 on main shaft 2 can be detected, so as to detect thermal expansion length of the main shaft 2 in depth direction, makes displacement
Sensor 5 is connected with regulating device 6, and then regulating device 6 can be utilized to adjust distance between displacement sensor 5 and Measuring plate 3, is made
It is more accurate to obtain the thermal expansion length that displacement sensor 5 detects, helps to improve the quality of product, reduces the fraction defective of product.
As shown in Figure 1, making main shaft 2 include mover 21, stator 22, upper bearing (metal) 23, lower bearing 24 and thrust bearing 25, will survey
Amount disk 3 is installed on 21 lower end of mover, is installed with stator 22 on sleeve 1, mover 21 is rotatably installed on stator 22,
When driving mechanism drive shaft 2 rotates, main shaft 2 drives mover 21 to rotate, and upper bearing (metal) 23, lower bearing 24 are respectively arranged in mover
21 both ends, help to make mover 21 that rotation be better achieved, and Measuring plate 3 is installed on the lower end of mover 21, and Measuring plate 3 can
Rotated synchronously with mover 21, thrust bearing 25 is installed on mover 21 and positioned at one end of lower bearing 24, helps to make
Rotation is better achieved in son 21, and when main shaft 2 works, upper bearing (metal) 23, lower bearing 24, thrust bearing 25 and the friction of mover 21 produce heat
Amount, in addition, magnetic effect occurs between stator 22 and mover 21 produces heat, the latter is main heat source so that main shaft 2 can be due to thermal expansion
To depth direction extend, mover 21 can also extend to depth direction, and Measuring plate 3 is fixedly connected with mover 21, Measuring plate 3 understand with
Mover 21 to move to depth direction together, increase the distance between Measuring plate 3 and displacement sensor 5.
As shown in Figure 1, being covered with protective cover 7 in one end of sleeve 1, protective cover 7 is fixedly connected with embracing folder 4, and then will
Protective cover 7 is covered on outside one end of main shaft 2, is offered opening 71 at the top of protective cover 7, is enable Measuring plate 3 from opening 71
Pass through, make to surround active chamber 72 between opening 71, protective cover 7, sleeve 1, so that Measuring plate 3 can be in active chamber 72 along dynamic
The axis of son 21 is moved to direction so that Measuring plate 3 can be moved in active chamber 72 with mover 21 to depth direction, be prevented
Shield 7 can effectively prevent the upper surface that bulky debris enters Measuring plate 3, and Measuring plate 3 is revolved with 21 1 superhigh speed of mover
Turn, can rapidly be thrown away when thering is dust, cutting fluid and cutting object to splash upwards from below to encounter the lower surface of Measuring plate 3
And it cannot be introduced into inside.As a kind of preferred embodiment of the present embodiment, it is air-floating main shaft 2 to make main shaft 2, and main shaft 2 has when working
Air-flow is flowed along the axis direction of mover 21, can be prevented the minims such as dust from entering the upper surface of Measuring plate 3, can effectively be protected
The measurement surface of displacement sensor 5 and Measuring plate 3 is not contaminated, greatly improves measurement accuracy and service life.
As shown in Figure 1, regulating device 6 is set to include coarse adjustment mechanism 61, micro-adjusting mechanism 62 and fixed block 63, by coarse adjustment mechanism 61
4 be fixedly connected with embracing folder, displacement sensor 5 be fixedly installed on micro-adjusting mechanism 62, and fixed block 63 respectively with coarse adjustment mechanism
61 and micro-adjusting mechanism 62 connect, and then displacement sensor 5 can be realized coarse adjustment and fine setting, help to survey displacement sensor 5
The data gone out are more accurate.
Slided as shown in Fig. 2, making coarse adjustment mechanism 61 include fixed connecting plate 611, fixing screws 612, adjustable plate 613, first
Groove, the second sliding slot 614, adjusting screw 615 and adjusting nut 616, and fixed connecting plate 611 is locked in by fixing screws 612
Embrace on folder 4, the first sliding groove is offered on fixed connecting plate 611, the second sliding slot 614, adjustable plate 613 are opened up on adjustable plate 613
It is fixedly connected with fixed block 63, adjusting screw 615 is inserted on adjustable plate 613 and fixed connecting plate 611, makes adjusting screw
615 pass through the first sliding groove and the second sliding slot 614 and are slided in the first sliding groove and the second sliding slot 614, and adjustment adjusting screw 615 exists
Position in the first sliding groove, the second sliding slot 614, adjustable plate 613 are moved along fixed connecting plate 611, even if fixed block 63 is toward close
Or the direction away from Measuring plate 3 is moved, and adjusting nut 616 is installed on the side of fixed connecting plate 611, makes adjusting screw
615 are spirally connected with adjusting nut 616, and then can make to be connected through a screw thread between adjustable plate 613 and fixed connecting plate 611, will adjust
Section plate 613 is fixed on fixed connecting plate 611, so that the distance of fixed block 63 and Measuring plate 3 is adjusted to meet production requirement,
And fixed block 63 is connected with micro-adjusting mechanism 62, and displacement sensor 5 is installed on micro-adjusting mechanism 62, i.e., to displacement sensor 5
Realize coarse adjustment in position.
As in Figure 3-5, and micro-adjusting mechanism 62 to include active plate 621, pin 622, positioning screw 623, fine setting logical
Hole 624, micrometer adjusting screw 625 and spring leaf 626, make active plate 621 be connected by pin 622 with fixed block 63 so that living
Dynamic connecting plate 621 counterclockwise or can be rotated clockwise around pin 622, active plate 621 is included the first connector and the
Two connectors, offer arc-shaped through-hole, screw channel so that arc-shaped through-hole and screw in the first connector and the second connector
Passage 6212 is separated by setting, and when the first connector and the second connector connect, two arc-shaped through-holes surround mounting hole 6211, by position
Displacement sensor 5 is installed in mounting hole 6211, two screw channels is formed screw conduits 6212, is passed through positioning screw 623
Screw conduits 6212, make positioning screw 623 be connected through a screw thread with screw conduits 6212, between the first connector and the second connector
It is connected through a screw thread, and then displacement sensor 5 can be fixed on active plate 621, is opened up on active plate 621
There is fine setting through hole 624, and finely tune through hole 624 and be located at the lower section of fixed block 63, micrometer adjusting screw 625 is spirally connected with fine setting through hole 624, bullet
Reed 626 is installed between active plate 621 and fixed block 63, and spring leaf 626 and micrometer adjusting screw 625 are located at pin respectively
622 both sides, adjust micrometer adjusting screw 625 make its fine setting through hole 624 in rotate, can make fixed block 63 one end pull down or
One end of fixed block 63, and then stretching or compression spring leaf 626 are jacked up, flexible connection block can be made counterclockwise around pin 622
Either rotate clockwise so that displacement sensor 5 is moved toward the direction away from or close to Measuring plate 3, i.e., to displacement sensing
Fine setting is realized in the position of device 5, can adjust the distance between displacement sensor 5 and Measuring plate 3.
As shown in Figure 1, offer passage in the side of protective cover 7 so that active plate 621 can be on a passage around pin
Nail 622 rotates clockwise or counterclockwise.
As shown in Figure 1, 2, make mover 21 that cutter 8 is installed on one end of Measuring plate 3, when mover 21 rotates, make knife
Tool 8 can be rotated synchronously with mover 21, and then product can be processed using cutter 8.
The above embodiment is only the preferred embodiment of the utility model, it is impossible to is protected with this to limit the utility model
Scope, the change of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model scope claimed.
Claims (9)
- A kind of 1. high precision electro spindle thermal detection device, it is characterised in that：Including sleeve, for what is be connected with driving mechanism Main shaft, Measuring plate, for fixes sleeve embrace folder, for detecting Measuring plate in the displacement sensor of position on main shaft and for adjusting The regulating device of distance between displacement sensor and Measuring plate is saved, the main shaft is rotatably installed in sleeve, the Measuring plate The lower end of main shaft is fixed on, described armful of chuck is connected on sleeve, and institute's displacement sensors are located at the top of Measuring plate, and the displacement passes Sensor is connected with regulating device, and the regulating device is with embracing clamping connect.
- 2. high precision electro spindle thermal detection device as claimed in claim 1, it is characterised in that：The main shaft includes dynamic Son, stator, upper bearing (metal), lower bearing and thrust bearing, the Measuring plate is installed on mover lower end and is rotated synchronously with mover, described Mover is rotatably installed on stator, and the stator is fixed on sleeve, and the upper bearing (metal), lower bearing are respectively arranged in mover Both ends, the thrust bearing is installed on mover and positioned at one end of lower bearing.
- 3. high precision electro spindle thermal detection device as claimed in claim 1, it is characterised in that：One end shield of the sleeve Equipped with protective cover, the protective cover with embrace it is clamping connect, the opening for being passed through for Measuring plate, institute are offered at the top of the protective cover State the active chamber for being formed between opening, protective cover, sleeve and being used for being moved along mover axis direction for Measuring plate.
- 4. high precision electro spindle thermal detection device as claimed in claim 1, it is characterised in that：The regulating device includes Coarse adjustment mechanism, micro-adjusting mechanism and fixed block, the coarse adjustment mechanism with embrace it is clamping connect, institute's displacement sensors are fixed on micro-adjusting mechanism On, the fixed block is connected with coarse adjustment mechanism and micro-adjusting mechanism respectively.
- 5. high precision electro spindle thermal detection device as claimed in claim 4, it is characterised in that：The coarse adjustment mechanism includes Fixed connecting plate, fixing screws, the adjustable plate for making fixed block past remote or being moved close to Measuring plate direction, the first cunning Groove, the second sliding slot, adjusting screw and adjusting nut, the fixed connecting plate are locked in by fixing screws and embraced on folder, the tune Save plate and fixed block is affixed, be connected through a screw thread between the adjustable plate and fixed connecting plate, the first sliding groove is fixed on fixation On connecting plate, second sliding slot is fixed on adjustable plate, and the adjusting screw is inserted on adjustable plate and fixed connecting plate, institute The side that adjusting nut is installed on fixed connecting plate is stated, the adjusting screw is spirally connected with adjusting nut.
- 6. high precision electro spindle thermal detection device as claimed in claim 4, it is characterised in that：The micro-adjusting mechanism includes For making displacement sensor logical toward the active plate away from or close to the movement of Measuring plate direction, pin, positioning screw, fine setting Hole, micrometer adjusting screw and spring leaf for jacking up or pulling down fixed block one end, the active plate pass through pin and fixation Block connects, and the active plate counterclockwise or can be rotated clockwise around pin, and institute's displacement sensors pass through positioning screw It is locked on active plate, the fine setting through hole is located on active plate and below fixed block, the micrometer adjusting screw It is connected respectively with fixed block and active plate, the micrometer adjusting screw is spirally connected with fine setting through hole, and the spring leaf is installed on activity Between connecting plate and fixed block, the spring leaf and micrometer adjusting screw are located at the both sides of pin respectively.
- 7. high precision electro spindle thermal detection device as claimed in claim 6, it is characterised in that：The active plate bag The first connector and the second connector are included, first connector and the second connector offer arc-shaped through-hole, screw channel, The arc-shaped through-hole is separated by with screw conduits, is connected through a screw thread between first connector and the second connector；Described first When connector and the second connector connect, two arc-shaped through-holes form the mounting hole passed through for displacement sensor, and two screw threads lead to Road forms the screw conduits for being used for passing through for positioning screw, and the positioning screw is connected through a screw thread with screw conduits.
- 8. high precision electro spindle thermal detection device as claimed in claim 3, it is characterised in that：The side of the protective cover Offer the passage for being passed through for active plate.
- 9. high precision electro spindle thermal detection device as claimed in claim 2, it is characterised in that：The mover is close to measurement Cutter is installed on one end of disk and is rotated synchronously with mover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721212440.9U CN207272870U (en) | 2017-09-20 | 2017-09-20 | A kind of high precision electro spindle thermal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721212440.9U CN207272870U (en) | 2017-09-20 | 2017-09-20 | A kind of high precision electro spindle thermal detection device |
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| Publication Number | Publication Date |
|---|---|
| CN207272870U true CN207272870U (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721212440.9U Active CN207272870U (en) | 2017-09-20 | 2017-09-20 | A kind of high precision electro spindle thermal detection device |
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| Country | Link |
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| CN (1) | CN207272870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598674A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | A kind of high precision electro spindle thermal detection means |
| CN117681037A (en) * | 2024-01-26 | 2024-03-12 | 江西佳时特精密机械有限责任公司 | High-precision main shaft thermal elongation closed-loop compensation method based on displacement sensor |
-
2017
- 2017-09-20 CN CN201721212440.9U patent/CN207272870U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598674A (en) * | 2017-09-20 | 2018-01-19 | 广州市昊志机电股份有限公司 | A kind of high precision electro spindle thermal detection means |
| CN107598674B (en) * | 2017-09-20 | 2023-11-14 | 广州市昊志机电股份有限公司 | High-precision motorized spindle thermal elongation detection device |
| CN117681037A (en) * | 2024-01-26 | 2024-03-12 | 江西佳时特精密机械有限责任公司 | High-precision main shaft thermal elongation closed-loop compensation method based on displacement sensor |
| CN117681037B (en) * | 2024-01-26 | 2024-04-16 | 江西佳时特精密机械有限责任公司 | High-precision main shaft thermal elongation closed-loop compensation method based on displacement sensor |
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