CN203579204U - Machine tool static pressure guide rail clamping device - Google Patents
Machine tool static pressure guide rail clamping device Download PDFInfo
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- CN203579204U CN203579204U CN201320778601.6U CN201320778601U CN203579204U CN 203579204 U CN203579204 U CN 203579204U CN 201320778601 U CN201320778601 U CN 201320778601U CN 203579204 U CN203579204 U CN 203579204U
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- oil
- guide rail
- clamping
- machine tool
- oil circuit
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Abstract
The utility model discloses a machine tool static pressure guide rail clamping device which is provided with a hydraulic driving mechanism; the hydraulic driving mechanism is connectprovided with a serial connection piston oil cylinder (2) in series; a clamping rod (3) is connected with a piston inof serial connection with the serial connection piston oil cylinder (2); one of clamping plates is arranged at the opposite end, connected with the piston of the serial connection piston oil cylinder (2), of the clamping rod (3); the clamping rod penetrates through the other clamping plate which is arranged between a guide rail and the serial connection piston oil cylinder (2). By adopting the technical scheme, a moving part can be uniformly reliably clamped, a machine tool guide rail static pressure oil film is not damaged, the position precision before and after the moving part is clamped is ensured, and the moving precision of a static pressure machine tool is ensured.
Description
Technical field
The utility model belongs to the technical field of mechanical processing machine, relates to the technology of CNC Machine Tools, and more particularly, the utility model relates to a kind of machine tool static-pressure guide rail clamper.
Background technology
The precision and reliability, the security that improve lathe are the developing direction of technology of Machine Tool always, and use modern Design and value engineering is the target that modern machine Manufacturing Technology Development is pursued just for user provides practical, the reliable and high product of the ratio of performance to price always.
In the prior art, the mode that guide rail is clamped is: take hydraulic pressure or mechanical gripping means, the guide pass that makes moving member by top, the mode of drawing is (or on stationary plane of clamping device) on the guide pass near fixed support firmly, thereby moving member is clamped.
Adopt the above-mentioned clamping mode of machine adopted of hydrostatic slideway, machining accuracy after can clamping moving member exerts an influence, because static pressure slippage moving part guide pass and fixed support guide pass are discontiguous, between them by the static pressure oil film of a floor height rigidity by moving member " suspension " on fixed support guide pass.The thickness of oil film is generally 0.02～0.03mm, as adopt above-mentioned guide rail clamper by pushing up, draw mode, the guide pass of moving member is firmly abutted against on the guide pass of fixed support (or on stationary plane of clamping device), will destroy static pressure oil film, the forward and backward position of clamping of moving member is changed, thereby affect the machining accuracy of lathe.
Utility model content
The utility model provides a kind of machine tool static-pressure guide rail clamper, its objective is not only to guarantee reliable grip moving-member, but also guarantee its positional precision before and after clamping.
To achieve these goals, the technical scheme that the utility model is taked is:
Machine tool static-pressure guide rail clamper of the present utility model, by bearing, be fixed on moving member, described clamping device is provided with clamping bar and two clamping plates, described clamping device is provided with hydraulic drive mechanism, this hydraulic drive mechanism is provided with tandem piston oil cylinder, and described clamping bar is connected with the piston of tandem piston oil cylinder; One of them in described clamping plate, is arranged on the opposite end that clamping bar is connected with the piston of tandem piston oil cylinder; Described clamping bar is through another clamping plate, and this clamping plate is arranged between guide rail and tandem piston oil cylinder.
Clamping plate described in each includes ball ring and sphere pressing plate, and the contact-making surface of described ball ring and sphere pressing plate is Surface of Sphere; Under clamped condition, described sphere pressing plate is pressed on guide rail.
On the face that described sphere pressing plate contacts with guide rail, be provided with copper cushion block.
Described tandem piston oil cylinder is provided with and clamps oil-in and loosen oil-in, described clamping oil-in with loosen oil-in and be connected with 3-position 4-way solenoid directional control valve by oil circuit; The oil-in of described 3-position 4-way solenoid directional control valve is connected with fuel tank with oil pump respectively with oil return opening; Described clamping oil-in to the oil circuit of 3-position 4-way solenoid directional control valve is clamping oil circuit; Described loosen oil-in to the oil circuit of 3-position 4-way solenoid directional control valve for loosening oil circuit.
Described clamping oil circuit and unclamp a pressure switch is respectively set on oil circuit.
The pressure switch operating pressure being located on described clamping oil circuit is 4.2Mpa.
The pressure switch operating pressure loosening described in being located on oil circuit is 1MPa.
The utility model adopts technique scheme, for NC heavy floor type boring and milling machine, can evenly clamp reliably moving-member, can not destroy again machine tool guideway static pressure oil film, guarantee that moving member clamps forward and backward positional precision, thereby guaranteed the kinematic accuracy of static pressure lathe; In hydraulic circuit, according to lathe action, adopted pressure switch to send " clamping ", " loosening " signal; On electric, be provided with action interlocking, guaranteed that machine cut adds the machining accuracy of part in man-hour, and the reliability of clamping device and the machine security of lathe have been guaranteed, improved machine tooling product quality, improved lathe reliability, security, in technology, performance, structure, there is innovation characteristic.
Accompanying drawing explanation
Below the expressed content of each width accompanying drawing of this description and the mark in figure are briefly described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the syndeton schematic diagram of the moving member in the utility model;
Fig. 3 is the hydraulic system schematic diagram in the utility model.
In figure, be labeled as:
1, bearing, 2, tandem piston oil cylinder, 3, clamping bar, 4, ball ring, 5, sphere pressing plate, 6, copper cushion block, 7, disk spring, 8, adjusting nut, 9, pressure switch, 10,3-position 4-way solenoid directional control valve, 11, oil cylinder, 12, oil cylinder, 13, clamp oil-in, 14, loosen oil-in, 15, trip bolt, 16, alignment pin, 17, moving member.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present utility model is described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present utility model, technical scheme.
Structure of the present utility model as shown in Figure 1, Figure 2 and Figure 3, for a kind of machine tool static-pressure guide rail clamper, by bearing 1, be fixed on moving member 17, at moving member 17(as moving-members such as lathe slide or main spindle boxes) upper, by trip bolt 15, alignment pin 16, bearing 1 is fixing.
Described clamping device is provided with clamping bar 3 and two clamping plates.Fig. 1, Fig. 2 are this guide rail floating clamping device schematic diagram.Static pressure machine tool guideway floating clamping device of the present utility model is for NC heavy floor type boring and milling machine.
In order to solve the problem that prior art exists and to overcome its defect, realize and not only guarantee reliable grip moving-member, but also guarantee the goal of the invention of its positional precision before and after clamping, the technical scheme that the utility model is taked is:
As shown in Figure 1 to Figure 3, machine tool static-pressure guide rail clamper of the present utility model is provided with hydraulic drive mechanism, and this hydraulic drive mechanism is provided with tandem piston oil cylinder 2, and described clamping bar 3 is connected with the piston of tandem piston oil cylinder 2; One of them in described clamping plate, is arranged on the opposite end that clamping bar 3 is connected with the piston of tandem piston oil cylinder 2; Described clamping bar 3 is through another clamping plate, and this clamping plate is arranged between guide rail and tandem piston oil cylinder 2.
The clamping of adjusting nut 8 regulator solution cylinder pressures and unclamp stroke.
Technique scheme of the present utility model, hydrostatic slideway can be clamped reliably, before making again to clamp, after static pressure oil film and moving member position do not change, guarantee that NC heavy floor type boring and milling machine has good machining accuracy, the utility model provides above-described collection machinery, electronics, hydraulic pressure is in the static pressure machine tool guideway floating clamping device of one, this device can clamp reliably to hydrostatic slideway, before making again to clamp, static pressure oil film and the moving member position of rear moving member do not change, effectively improved the kinematic accuracy of lathe, thereby further guaranteed the machining accuracy of lathe.
Clamping plate described in each includes ball ring 4 and sphere pressing plate 5, and the contact-making surface of described ball ring 4 and sphere pressing plate 5 is Surface of Sphere; Under clamped condition, described sphere pressing plate 5 is pressed on guide rail.
On the face that described sphere pressing plate 5 contacts with guide rail, be provided with copper cushion block 6.The effect of copper cushion block 6 is the abrasive damages that reduce guide rail contact-making surface.
Described tandem piston oil cylinder 2 is provided with and clamps oil-in 13 and loosen oil-in 14, described clamping oil-in 13 with loosen oil-in 14 and be connected with 3-position 4-way solenoid directional control valve 10 by oil circuit; The oil-in of described 3-position 4-way solenoid directional control valve 10 is connected with fuel tank with oil pump respectively with oil return opening; Described clamping oil-in 13 to the oil circuit of 3-position 4-way solenoid directional control valve 10 is clamping oil circuit; Described loosen oil-in 14 to the oil circuit of 3-position 4-way solenoid directional control valve 10 for loosening oil circuit.
Technique scheme of the present utility model, can evenly clamp reliably moving-member, can not destroy again machine tool guideway static pressure oil film, make moving member 17 clamp forward and backward position and do not change, thereby raising mobile accuracy, has guaranteed the kinematic accuracy of hydrostatic slideway; But also in hydraulic circuit, according to lathe, action has adopted pressure switch to send " clamping ", " loosening " signal; On electric, be provided with action interlocking,
Guaranteed the machining accuracy of machine cut processing parts, and the reliability of clamping device and the machine security of lathe have been guaranteed, greatly improved machine tooling product quality, reliability, the security of lathe have been improved, save human and material resources, in technology, performance, structure, there is innovation characteristic.
The control of hydraulic clamp:
The clamping of hydraulic clamp and loosen by three position four-way electromagnetic valve reversal valve 10 and control.Electromagnet YVA obtains electric, and clamping device clamps; Electromagnet YVB obtains electric, and clamping device loosens.
On the push-button station of lathe control panel, be provided with " clamping " and " loosening " and select button.
When guide rail need to clamp, pressure oil enters tandem piston oil cylinder 2 cavity of resorptions from clamping oil-in 13, promoting piston moves upward and drives clamping bar 3(clamping bar 3 to link into an integrated entity by screw thread and piston), make upper and lower sphere pressing plate 5 and copper cushion block 6 interlocks, thereby moving member 17 is clamped on guide rail;
When guide rail need to loosen, pressure oil enters tandem piston oil cylinder 2 epicoeles from loosening oil-in 14, promotes piston and clamping bar 3 and moves downward, and upper and lower sphere pressing plate 5 is evenly strutted by the elastic force of disk spring 7, thereby moving member is loosened, can move.
This hydraulic clamp, according to the concrete condition of moving-member, can be installed 2～4 clamping devices, to increase clamping force on moving member.
The design of this hydraulic clamp, makes moving member reliable, even in each clamped position folder power, has facilitated operating personnel's operation, and has further improved reliability, security and precision when NC heavy floor type boring and milling machine is worked.Guaranteed lathe precision to the processing of part in process.
As shown in Figure 3, tandem piston oil cylinder is to be in series by oil cylinder 11 and oil cylinder 12.
Described clamping oil circuit and unclamp a pressure switch 9 is respectively set on oil circuit.
When selecting button to dial when " clamping " keeps off, clamping device carries out " clamping " accordingly action; After clamping and move, be connected on the pressure switch 9 clamping on oil circuit and detect in oil circuit when operating pressure meets or exceeds 4.2Mpa, send signal, the indicator lamp of corresponding " clamping " is bright, points out and has clamped.
When selecting button, dial when " loosening " keeps off, clamping device carries out " loosening " accordingly action, after loosening up completes, being connected on the pressure switch 9 clamping on oil circuit detects in oil circuit when operating pressure reaches or is less than 1MPa, send signal, the indicator lamp " loosening " is accordingly bright, and prompting has been loosened.
Technique scheme has facilitated operating personnel's operation.And by electrical control, carry out the action interlocking of mechanical part, for example:
Moving-member can not carry out motor performance to it in the situation that there is no " loosening "; At moving member, do not need the machining under situation of movement, just require to control moving-member and in the situation that there is no " clamping ", can not carry out relevant machining operation.
By above-mentioned interlock function, guaranteed machine security and the reliability of lathe.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (7)
1. a machine tool static-pressure guide rail clamper, by bearing (1), be fixed on moving member (17), described clamping device is provided with clamping bar (3) and two clamping plates, it is characterized in that: described clamping device is provided with hydraulic drive mechanism, this hydraulic drive mechanism is provided with tandem piston oil cylinder (2), and described clamping bar (3) is connected with the piston of tandem piston oil cylinder (2); One of them in described clamping plate, is arranged on the opposite end that clamping bar (3) is connected with the piston of tandem piston oil cylinder (2); Described clamping bar (3) is through another clamping plate, and this clamping plate is arranged between guide rail and tandem piston oil cylinder (2).
2. according to machine tool static-pressure guide rail clamper claimed in claim 1, it is characterized in that: the clamping plate described in each includes ball ring (4) and sphere pressing plate (5), the contact-making surface of described ball ring (4) and sphere pressing plate (5) is Surface of Sphere; Under clamped condition, described sphere pressing plate (5) is pressed on guide rail.
3. according to machine tool static-pressure guide rail clamper claimed in claim 2, it is characterized in that: on the face that described sphere pressing plate (5) contacts with guide rail, be provided with copper cushion block (6).
4. according to machine tool static-pressure guide rail clamper claimed in claim 1, it is characterized in that: described tandem piston oil cylinder (2) is provided with and clamps oil-in (13) and loosen oil-in (14), described clamping oil-in (13) with loosen oil-in (14) and be connected with 3-position 4-way solenoid directional control valve (10) by oil circuit; The oil-in of described 3-position 4-way solenoid directional control valve (10) is connected with fuel tank with oil pump respectively with oil return opening; Described clamping oil-in (13) to the oil circuit of 3-position 4-way solenoid directional control valve (10) is clamping oil circuit; Described loosen oil-in (14) to the oil circuit of 3-position 4-way solenoid directional control valve (10) for loosening oil circuit.
5. according to machine tool static-pressure guide rail clamper claimed in claim 4, it is characterized in that: described clamping oil circuit and unclamp a pressure switch (9) is respectively set on oil circuit.
6. according to machine tool static-pressure guide rail clamper claimed in claim 5, it is characterized in that: pressure switch (9) operating pressure being located on described clamping oil circuit is 4.2Mpa.
7. according to machine tool static-pressure guide rail clamper claimed in claim 5, it is characterized in that: pressure switch (9) operating pressure loosening described in being located on oil circuit is 1MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778601.6U CN203579204U (en) | 2013-11-28 | 2013-11-28 | Machine tool static pressure guide rail clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778601.6U CN203579204U (en) | 2013-11-28 | 2013-11-28 | Machine tool static pressure guide rail clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203579204U true CN203579204U (en) | 2014-05-07 |
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ID=50577176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778601.6U Expired - Fee Related CN203579204U (en) | 2013-11-28 | 2013-11-28 | Machine tool static pressure guide rail clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203579204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801939A (en) * | 2013-11-28 | 2014-05-21 | 芜湖恒升重型机床股份有限公司 | Clamping device for hydrostatic guideway of machine tool |
| CN104493620A (en) * | 2014-12-16 | 2015-04-08 | 广东省工业技术研究院(广州有色金属研究院) | Normally closed hydraulic clamping device |
-
2013
- 2013-11-28 CN CN201320778601.6U patent/CN203579204U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801939A (en) * | 2013-11-28 | 2014-05-21 | 芜湖恒升重型机床股份有限公司 | Clamping device for hydrostatic guideway of machine tool |
| CN104493620A (en) * | 2014-12-16 | 2015-04-08 | 广东省工业技术研究院(广州有色金属研究院) | Normally closed hydraulic clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20171128 |