CN203792079U - Lathe horizontal beam lead screw auxiliary supporting device - Google Patents
Lathe horizontal beam lead screw auxiliary supporting device Download PDFInfo
- Publication number
- CN203792079U CN203792079U CN201420050087.9U CN201420050087U CN203792079U CN 203792079 U CN203792079 U CN 203792079U CN 201420050087 U CN201420050087 U CN 201420050087U CN 203792079 U CN203792079 U CN 203792079U
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- China
- Prior art keywords
- hole
- bearing
- fixed support
- lead screw
- movable bracket
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- Expired - Fee Related
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Abstract
The utility model discloses a lathe horizontal beam lead screw auxiliary supporting device and relates to the technical field of machine manufacturing. The lathe horizontal beam lead screw auxiliary supporting device is arranged between a lathe horizontal sliding plate and a horizontal beam. A fixed support is arranged on the lathe horizontal beam. A movable bracket is connected to the fixed support in a pressing mode. A supporting block for supporting a lead screw is arranged on the movable bracket. A horizontal first through hole is formed in the fixed support. A spring, a pin shaft and bearings are arranged in the first through hole in sequence. A sealing plate is arranged at one end, close to the spring, of the first through hole. A second through hole is formed in the movable bracket. The bearings are arranged in the first through hole of the fixed support and the second through hole of the movable bracket. A pushing pin is arranged in the second through hole. A third through hole is formed in one side of the second through hole. A shaft and a bearing are arranged in the third through hole. The bearing is in abutting connection with a guiding plate. A guiding groove is formed in the guiding plate. The bearing extends into the guiding groove of the guiding plate. The problem that a heavy machine tool horizontal beam lead screw supporting device is complex in structure, production cost is high, and only local lead screw drooping can be avoided can be solved.
Description
Technical field
The utility model relates to plant equipment manufacturing technology field, especially a kind of device for large span heavy-duty screw supplemental support.
Background technology
In recent years, flourish along with domestic equipment manufacture, the machine industry of manufacturing machine tool as equipment is in order to adapt to the needs of various enterprises, greatly developed a collection of high accuracy heavy machine tool, each increasing gradually to stroke along with lathe, Y-direction crossbeam particularly, stroke has reached more than 5 meters, leading screw length is more than 7 meters, because leading screw is horizontal positioned, therefore its rigidity is lower, be subject to the factors such as gravity or temperature rise to affect easy generation sagging, between steel ball in feed screw nut and raceway, contact stress increases, light make on ball contact-making surface to produce larger plastic deformation, affect the running precision of moving-member, in High Rotation Speed process, even produce and swing, heavy can cause the tired spot corrosion of leading screw raceway working surface, thereby reduce working life and the transmission efficiency of leading screw, past is for solving heavy machine tool long lead screw problem on deformation, mostly be to adopt to increase auxiliary guide rail one at leading trackside, and on moving-member, be equipped with than the moving-member mode of long connection bracket also itself, utilize short distance between support to guarantee the required precision of leading screw within the scope of limited travel, aforesaid way has solved the sagging problem of leading screw to a certain extent, but still has following problem: 1, the increase of auxiliary guide rail has improved the production cost of whole lathe, has also increased the difficulty of processing and assembling simultaneously, 2, connection bracket has limited the sagging integral body control of leading screw.
Utility model content
The purpose of this utility model is to provide a kind of machine tool beam auxiliary lead screw supporting device, and it can solve the medium and heavy machine tool beam screw lead supporting device of prior art complex structure, and production cost is high, can only solve the problem of local leading screw sag of chain.
In order to address the above problem, the technical solution adopted in the utility model is:
A kind of machine tool beam auxiliary lead screw supporting device, be arranged between lathe cross slide and crossbeam, leading screw is contained on described crossbeam, on leading screw, be connected with feed screw nut, described machine tool beam is provided with fixed support, movable bracket is crimped on described fixed support, and described movable bracket is provided with for supporting the back-up block of described leading screw; Described fixed support is provided with the first through hole of level, in this first through hole, is provided with successively spring, bearing pin and bearing, and described bearing is arranged on described bearing pin by pivot pin, at this first through hole, near one end of described spring, is provided with shrouding; Described movable bracket is provided with the second through hole, described bearing is located in the second through hole of described support bracket fastened the first through hole and movable bracket, in this second through hole, be provided with ejector pin, one side of described the second through hole is provided with the third through-hole of level, in this third through-hole, axle is housed, bearing is equipped with in the outer end of described axle, described bearing and a guide plate butt, on described guide plate, be provided with gathering sill, described bearing stretches in the gathering sill of described guide plate.
In above technical scheme, further: described bearing pin is provided with elongated slot, described fixed support upper end is provided with and the vertical hole communicating of described the first through hole, is provided with adjustment bolt in described hole.
Further: described fixed support is connected with described movable bracket by pressing plate.
Further: described back-up block is located at the bottom of described leading screw, the groove surface on described back-up block top is and the corresponding arc surface of described leading screw external diameter.
Further: described gathering sill has along the introduction segment of the axial setting of described leading screw and derives section, between described introduction segment and described derivation section, being connected with in turn for described bearing is descending section of dodging that described feed screw nut arranges, the craspedodrome section of current described feed screw nut and up section of return.
Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1, in the utility model, large span leading screw can be installed many these devices of cover, has increased the supplemental support point of leading screw, has effectively reduced the sag of chain of leading screw;
2, the mode that the utility model moves up and down and adopts mechanical type to drive; Each strength of parts increases, and has reduced the probability that weak element damages;
3, the utility model is simple in structure, has reduced the precision processing request to Big Part in Machine Tools such as crossbeams, effectively reduces the production cost of lathe.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model machine tool beam auxiliary lead screw supporting device.
Fig. 2 is that the A of Fig. 1 is to partial enlarged drawing.
Fig. 3 is guide plate front view.
Fig. 4 is the left cutaway view of guide plate.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described: as shown in Fig. 1 ~ Fig. 2,
A kind of machine tool beam auxiliary lead screw supporting device, be arranged between machine tool beam 11 and cross slide 12, leading screw 13 is contained on crossbeam 11, on leading screw 13, be connected with feed screw nut, include fixed support 1 and movable bracket 9, fixed support 1 is fixed on machine tool beam 11, movable bracket 9 is crimped on fixed support 1 by pressing plate, back-up block 10 by screw fastening on movable bracket 9, bearing 4 is arranged on bearing pin 3 by straight pin, and spring 2, bearing 4, bearing pin 3 are arranged in the first through hole of the level on fixed support 1 from left to right, the top of fixed support 1 is provided with the vertical upright opening communicating of the first through hole with fixed support 1, in upright opening, be equipped with and adjust bolt 15, bearing pin 3 tops have long gathering sill, adjustment bolt 15 stretches in the gathering sill of bearing pin 3 through the upright opening of fixed support 1, thereby control spring 2, bearing 4, the transverse shifting distance of bearing pin 3 in the first through hole of the level of fixed support 1, left end at level the first through hole is provided with shrouding 14, and shrouding 14 is encapsulated in spring 2, bearing pin 3 and bearing 4 in level the first through hole, ejector pin 5 is arranged in the second through hole of the level on movable bracket 9, ejector pin 5 and bearing 4 butts, and ejector pin 5 transverse shifting distance in the second through hole is controlled by the feather key of fixed support 1 and the gathering sill on ejector pin 5, above level the second through hole on movable bracket 9, be provided with horizontally disposed third through-hole, axle 7 is installed in third through-hole, axle 7 has outer end that bearing 8 is installed, during actual installation, make the first through hole of the level on the corresponding fixed support 1 of the second through hole of level on movable bracket 9, effect due to spring 2 elastic force, bearing 4 is between fixed support 1 and movable bracket 9 faying faces, limited moving downward of movable bracket 9, when this position, groove arc surface and the leading screw 13 of back-up block 10 fit tightly, adjust the upper-lower position of a whole set of bracing or strutting arrangement, then fixing, can become the supplemental support point of the screw on leading screw 13, on leading screw 13, screw moves left and right in the time of need to installing through this, bearing 8 is along the introduction segment of the gathering sill on the guide plate 6 being arranged on moving-member, descending section, current section, return section and the motion of derivation section, as shown in Fig. 3 ~ Fig. 4, drive ejector pin 5, bearing pin 7, movable bracket 9, back-up block 10 integral body move downward, avoid the interference of leading screw 13 and this bracing or strutting arrangement, this has just completed the whole process of supplemental support.This bracing or strutting arrangement can be installed a plurality of on a rhizoid thick stick, forms a plurality of supplemental support points, guarantees that leading screw is effectively supported, and has reduced leading screw sagging, has guaranteed the precision of lathe.
Claims (5)
1. a machine tool beam auxiliary lead screw supporting device, be arranged between machine tool beam (11) and cross slide (12), leading screw (13) is contained on described crossbeam (11), leading screw is connected with feed screw nut on (13), it is characterized in that: described machine tool beam (11) is provided with fixed support (1), it is upper that movable bracket (9) is crimped on described fixed support (1), and described movable bracket (9) is provided with the back-up block (10) for supporting described leading screw (13); Described fixed support (1) is provided with the first through hole of level, in this first through hole, be provided with successively spring (2), bearing pin (3) and bearing (4), it is upper that described bearing (4) is arranged on described bearing pin (3) by pivot pin, at this first through hole, near one end of described spring (2), is provided with shrouding (14); Described movable bracket (9) is provided with the second through hole, described bearing (4) is located in the first through hole of described fixed support (1) and the second through hole of movable bracket (9), in this second through hole, be provided with ejector pin (5), one side of described the second through hole is provided with the third through-hole of level, axle (7) is housed in this third through-hole, bearing (8) is equipped with in the outer end of described axle (7), described bearing (8) and a guide plate (6) butt, on described guide plate (6), be provided with gathering sill, described bearing (8) stretches in the gathering sill of described guide plate (6).
2. machine tool beam auxiliary lead screw supporting device according to claim 1, it is characterized in that: described bearing pin (3) is provided with elongated slot, described fixed support (1) upper end is provided with and the vertical hole communicating of described the first through hole, is provided with and adjusts bolt (15) in described hole.
3. machine tool beam auxiliary lead screw supporting device according to claim 1 and 2, is characterized in that: described fixed support (1) is connected with described movable bracket (9) by pressing plate.
4. machine tool beam auxiliary lead screw supporting device according to claim 3, it is characterized in that: described back-up block (10) is located at the bottom of described leading screw (13), the groove surface on described back-up block (10) top is and the corresponding arc surface of described leading screw (13) external diameter.
5. machine tool beam auxiliary lead screw supporting device according to claim 1 and 2, it is characterized in that: described gathering sill has along the introduction segment of the axial setting of described leading screw (13) and derives section, between described introduction segment and described derivation section, being connected with in turn for described bearing (8) is descending section of dodging that described feed screw nut arranges, the craspedodrome section of current described feed screw nut and up section of return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050087.9U CN203792079U (en) | 2014-01-26 | 2014-01-26 | Lathe horizontal beam lead screw auxiliary supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050087.9U CN203792079U (en) | 2014-01-26 | 2014-01-26 | Lathe horizontal beam lead screw auxiliary supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792079U true CN203792079U (en) | 2014-08-27 |
Family
ID=51374346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050087.9U Expired - Fee Related CN203792079U (en) | 2014-01-26 | 2014-01-26 | Lathe horizontal beam lead screw auxiliary supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647109A (en) * | 2014-01-26 | 2015-05-27 | 柳州正菱重型数控机床有限公司 | Auxiliary supporting device for machine tool beam screw rod |
-
2014
- 2014-01-26 CN CN201420050087.9U patent/CN203792079U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647109A (en) * | 2014-01-26 | 2015-05-27 | 柳州正菱重型数控机床有限公司 | Auxiliary supporting device for machine tool beam screw rod |
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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 |
Granted publication date: 20140827 Termination date: 20160126 |
|
| EXPY | Termination of patent right or utility model |