CN213317722U - Horizontal lathe tailstock center height adjusting structure - Google Patents
Horizontal lathe tailstock center height adjusting structure Download PDFInfo
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- CN213317722U CN213317722U CN202022038765.8U CN202022038765U CN213317722U CN 213317722 U CN213317722 U CN 213317722U CN 202022038765 U CN202022038765 U CN 202022038765U CN 213317722 U CN213317722 U CN 213317722U
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- tailstock
- shaped
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- adjusting
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Abstract
The utility model provides a horizontal lathe tailstock center height adjustment structure, include the tailstock body and the tailstock bottom plate by connecting bolt connection, still include two arc backing plates and two gib head wedge adjusting plates, gib head wedge adjusting plate and arc backing plate are according to upper and lower position setting between tailstock body and tailstock bottom plate, be equipped with two arc walls around the tailstock bottom plate, two arc backing plates are located the arc wall, the arc surface and the arc wall of each arc backing plate match the laminating, the top plane of each arc backing plate and the lower bevel laminating of each gib head wedge adjusting plate, the last plane and the tailstock body bottom surface laminating of each gib head wedge adjusting plate. Adopt the utility model discloses, need not to treat that can be convenient when the lathe overhaul, nimble implement the adjustment to tailstock body central height and self horizontally error, make its and chuck centre of gyration error and self horizontal error keep in the scope of allowwing, guarantee the machining precision of turning work piece.
Description
Technical Field
The utility model relates to a lathe, especially horizontal lathe tailstock center height adjustment structure.
Background
The common horizontal lathe is the most widely used lathe among many lathes. The structure of the common horizontal lathe comprises a lathe body, a headstock, a feed box, a tailstock and the like. When longer parts are turned, one end of the longer parts is clamped by a chuck on a spindle of a headstock, and a core shaft tip of a tailstock props against a central hole at the other end of the parts. In order to ensure the turning precision, the center of the tailstock center and the rotation center of the spindle chuck of the headstock must be coaxial. When the lathe runs, the temperature of the headstock rises to a certain degree, the center height of the spindle and the chuck rises to a certain degree, and in order to compensate for the phenomenon in advance, the center height of the tailstock mandrel is higher than the center of the headstock spindle chuck by about 0-0.06mm when the lathe is manufactured (taking a C6140 lathe as an example). In the different axiality error of the tailstock and the spindle chuck, the horizontal position precision can be ensured by adjusting the transverse position of the tailstock, but the vertical position precision is ensured by the processing precision of the tailstock and cannot be obtained by an adjusting method. Because the length and the size of the turned parts are different, the tailstock needs to change the position continuously to meet the turning requirement. The tailstock continuously rubs and changes positions on the lathe bed guide rail, the friction between the tailstock and the lathe bed guide rail is large, the lathe bed guide rail is abraded, the tailstock bottom plate guide rail is abraded, and the tailstock center height is gradually reduced relative to the center of the lathe head chuck. Meanwhile, because the turned parts have certain weight and generate certain pressure on the tailstock center, the front end (top end) of the tailstock is more seriously worn than the rear end of the tailstock. When this occurs, the means of repair typically include: 1. re-boring the tailstock mandrel hole, and then taking the diameter of the newly machined mandrel hole as a reference to be matched with a mandrel; 2. and grinding or scraping the lower surface of the tailstock bottom plate by taking the tailstock mandrel hole as a reference. The above-mentioned repairing method must be implemented when the lathe is overhauled. Therefore, in the prior art, the lower surface of the bottom plate is gradually abraded in the using process, and after the center height of the tailstock is lower than that of the spindle of the headstock, no effective means is available for repairing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can in time eliminate horizontal lathe tailstock center height adjustment structure of the centre of turning error of lathe tailstock center height and main shaft chuck in the use to the drawback of prior art.
The problem of the utility model is realized with following technical scheme:
the utility model provides a horizontal lathe tailstock center height adjustment structure, include the tailstock body and the tailstock bottom plate by connecting bolt connection, still include two arc backing plates and two gib head wedge adjusting plates, gib head wedge adjusting plate and arc backing plate are according to upper and lower position setting between tailstock body and tailstock bottom plate, be equipped with two arc walls around the tailstock bottom plate, two arc backing plates are located the arc wall, the arc surface and the arc wall of each arc backing plate match the laminating, the top plane of each arc backing plate and the lower bevel laminating of each gib head wedge adjusting plate, the last plane and the tailstock body bottom surface laminating of each gib head wedge adjusting plate.
In the structure for adjusting the center height of the horizontal lathe tailstock, the hook heads of the hook head wedge-shaped adjusting plates are positioned at the front and rear outer side ends of the lower part of the tailstock body, a plurality of adjusting gaskets are arranged between the hook heads and the front and rear end faces of the tailstock body, and the fastening screws penetrate through the hook heads and are screwed with the tailstock body.
According to the center height adjusting structure of the horizontal lathe tailstock, the arc-shaped base plate is provided with the base plate waist-shaped bolt hole corresponding to the connecting bolt, and the hook head wedge-shaped adjusting plate is provided with the adjusting plate waist-shaped bolt hole corresponding to the connecting bolt.
Above-mentioned horizontal lathe tailstock center height adjustment structure, the thickness of adjusting shim is not more than 0.5 millimeter, is equipped with the screw groove of stepping down and the tailstock jackscrew groove of stepping down on the adjusting shim.
According to the center height adjusting structure of the horizontal lathe tailstock, the chord length of the arc-shaped base plate is smaller than the diameter of the arc-shaped part and larger than the chord length of the arc-shaped groove, and the length of the arc-shaped base plate is matched with the width of the tailstock bottom plate.
According to the structure for adjusting the center height of the horizontal lathe tailstock, the width of the hook head wedge-shaped adjusting plate is not smaller than the chord length of the arc-shaped base plate, the length of the hook head wedge-shaped adjusting plate is matched with that of the arc-shaped base plate, and the inclination of the upper plane and the lower inclined plane of the hook head wedge-shaped adjusting plate is 1: 20.
The utility model discloses improve to solving horizontal lathe tailstock center height error adjustment problem, set up tailstock center height adjustment structure, the adjustment structure includes arc backing plate, wedge adjusting plate and adjusting shim, according to the error condition of tailstock center height, increases and decreases adjusting shim in a flexible way to adjust the position of the relative tailstock body of wedge adjusting plate, thereby reach the purpose of adjustment tailstock body center height. Adopt the utility model discloses, need not to treat that can be convenient when the lathe overhaul, nimble implement the adjustment to tailstock body central altitude error and self levelness error, make its and chuck centre of turning error and self horizontal error keep in the scope of allowwing, guarantee the machining precision of turning work piece.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a view from direction K of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a front view of the tailstock base;
FIG. 5 is a top view of the tailstock base;
FIG. 6 is a front view of the arcuate pad;
FIG. 7 is a top view of the arcuate shim plate;
FIG. 8 is a front view of the hook wedge adjustment plate;
FIG. 9 is a left side view of the hook wedge adjustment plate;
FIG. 10 is a top view of the hook wedge adjustment plate;
fig. 11 is a front view of the spacer shim.
The list of labels in the figure is: 1. the tailstock comprises a tailstock body, 2, a hook head wedge-shaped adjusting plate, 2-1, a hook head, 2-2, an upper plane, 2-3, a lower inclined plane, 2-4, a yielding hole, 2-5, an adjusting plate waist-shaped bolt hole, 3, an arc-shaped base plate, 3-1, a base plate waist-shaped bolt hole, 4, a tailstock base plate, 4-1, an arc-shaped groove, 5, a tailstock jackscrew, 6, a connecting bolt, 7, a fastening screw, 8, an adjusting gasket, 8-1, a tailstock jackscrew yielding groove, 8-2, a screw yielding groove, 9 and a tip.
Detailed Description
Referring to fig. 1-3, the present invention includes a tailstock body 1 and a tailstock base plate 4, which are connected by a connecting bolt 6. The utility model discloses two arc backing plates 3 and two gib head wedge adjusting plates 2 have been set up. The hook head wedge-shaped adjusting plates and the arc-shaped base plates are arranged between the tailstock body and the tailstock bottom plate according to the upper and lower positions, hook heads 2-1 of the hook head wedge-shaped adjusting plates are positioned at the front and rear outer side ends of the lower part of the tailstock body, a plurality of adjusting gaskets 8 are arranged between the hook heads and the front and rear end faces of the tailstock body, and fastening screws 7 penetrate through the hook heads to be screwed with the tailstock body.
Referring to fig. 3-8, two arc grooves 4-1 are arranged in front of and behind the tailstock base plate, two arc base plates are positioned in the arc grooves, the arc surface of each arc base plate is matched and attached with the arc grooves, and the top plane of each arc base plate is attached with the lower inclined plane 2-3 of each hook head wedge-shaped adjusting plate. The chord length of the arc-shaped base plate is smaller than the diameter of the arc-shaped part and larger than the chord length of the arc-shaped groove, and the length of the arc-shaped base plate is matched with the width of the tailstock bottom plate. The arc-shaped base plate is provided with base plate kidney-shaped bolt holes 3-1 corresponding to the connecting bolts, the length direction of the base plate kidney-shaped bolt holes is consistent with the front and back direction of the tailstock body, the connecting bolts penetrate through the base plate kidney-shaped bolt holes, and the interference between the bolt holes and the connecting bolts cannot occur when the circumferential position of the arc-shaped base plate is changed.
Referring to fig. 1, 3 and 8-10, one end of the hook wedge-shaped adjusting plate is provided with a hook 2-1, the upper plane 2-2 of the hook wedge-shaped adjusting plate is attached to the bottom surface of the tailstock body, and the lower inclined plane 2-3 of the hook wedge-shaped adjusting plate is attached to the top plane of the arc cushion plate. The inclination of the upper plane and the lower inclined plane is 1: 20. The width of the hook head wedge-shaped adjusting plate is not less than the chord length of the arc-shaped backing plate, and the length of the hook head wedge-shaped adjusting plate is matched with that of the arc-shaped backing plate. A plurality of adjusting gaskets 8 are arranged between the hook head and the front and rear end faces of the tailstock body, and three fastening screws 7 penetrate through the hook head and the tailstock body to be screwed at each end. The hook head is provided with a abdicating hole 2-4 for abdicating the tailstock jackscrew 5. The vertical surface of the hook head contacted with the adjusting gasket is vertical to the upper plane. Adjusting plate kidney-shaped bolt holes 2-5 are arranged on the hook head wedge-shaped adjusting plate corresponding to the positions of the connecting bolts, the length direction of the adjusting plate kidney-shaped bolt holes is consistent with the front and back direction of the tailstock body, the connecting bolts penetrate through the backing plate kidney-shaped bolt holes, and when the position of the hook head wedge-shaped adjusting plate changes, the hook head wedge-shaped adjusting plate does not interfere with the connecting bolts.
Referring to fig. 11, the thickness of the adjusting shim 9 is not greater than 0.5 mm, and in order to facilitate the replacement of the adjusting shim, the adjusting shim is provided with a screw yielding groove 8-2 for yielding a fastening screw and a tailstock jackscrew yielding groove 8-1 for yielding a tailstock jackscrew.
Referring to fig. 1, when the utility model is used, the adjusting position of the hook wedge-shaped adjusting plate is determined according to the deviation of the center height of the tailstock center 9 relative to the center height of the spindle of the headstock; and loosening the connecting bolt and the fastening screw, properly increasing and decreasing the adjusting gaskets at the two ends, moving the position of the hook head wedge-shaped adjusting plate back and forth, changing the central height and the self levelness of the tailstock center along with the movement of the position of the hook head wedge-shaped adjusting plate, and screwing the connecting bolt and the fastening screw after the central height and the self levelness of the tailstock center are adjusted to proper positions.
Claims (6)
1. The utility model provides a horizontal lathe tailstock center height control structure, includes by the tailstock body and the tailstock bottom plate of connecting bolt connection, by its characterized in that: the hook head wedge-shaped adjusting plate is characterized by further comprising two arc-shaped base plates (3) and two hook head wedge-shaped adjusting plates (2), the hook head wedge-shaped adjusting plates and the arc-shaped base plates are arranged between the tailstock body (1) and the tailstock bottom plate (4) according to the upper position and the lower position, two arc-shaped grooves (4-1) are arranged in the front of and behind the tailstock bottom plate, the two arc-shaped base plates are located in the arc-shaped grooves, the arc surface of each arc-shaped base plate is matched and attached to the arc-shaped grooves, the top plane of each arc-shaped base plate is attached to the lower inclined surface (2-3) of each hook head wedge-shaped adjusting plate, and the upper plane (2.
2. The horizontal lathe tailstock center height adjusting structure according to claim 1, wherein: the hook heads (2-1) of the hook head wedge-shaped adjusting plates are positioned at the front and rear outer side ends of the lower part of the tailstock body, a plurality of adjusting gaskets (8) are arranged between the hook heads and the front and rear end faces of the tailstock body, and fastening screws (7) penetrate through the hook heads and are screwed with the tailstock body.
3. The horizontal lathe tailstock center height adjusting structure according to claim 2, wherein: the arc-shaped base plate is provided with base plate kidney-shaped bolt holes (3-1) corresponding to the connecting bolts, and the hook head wedge-shaped adjusting plate is provided with adjusting plate kidney-shaped bolt holes (2-5) corresponding to the connecting bolts.
4. The horizontal lathe tailstock center height adjusting structure according to claim 3, wherein: the thickness of the adjusting gasket (8) is not more than 0.5 mm, and the adjusting gasket is provided with a screw abdicating groove (8-2) and a tailstock jackscrew abdicating groove (8-1).
5. The horizontal lathe tailstock center height adjusting structure according to claim 4, wherein: the chord length of the arc-shaped base plate is smaller than the diameter of the arc-shaped part and larger than the chord length of the arc-shaped groove, and the length of the arc-shaped base plate is matched with the width of the tailstock bottom plate.
6. The horizontal lathe tailstock center height adjusting structure of claim 5, wherein: the width of the hook head wedge-shaped adjusting plate is not less than the chord length of the arc-shaped backing plate, the length of the hook head wedge-shaped adjusting plate is matched with the length of the arc-shaped backing plate, and the inclination of the upper plane and the lower inclined plane of the hook head wedge-shaped adjusting plate is 1: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022038765.8U CN213317722U (en) | 2020-09-17 | 2020-09-17 | Horizontal lathe tailstock center height adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022038765.8U CN213317722U (en) | 2020-09-17 | 2020-09-17 | Horizontal lathe tailstock center height adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213317722U true CN213317722U (en) | 2021-06-01 |
Family
ID=76064264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022038765.8U Expired - Fee Related CN213317722U (en) | 2020-09-17 | 2020-09-17 | Horizontal lathe tailstock center height adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213317722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116786732A (en) * | 2023-08-09 | 2023-09-22 | 英科钛紧固件设备(上海)有限公司 | Thread rolling machine capable of adjusting position of spindle assembly |
-
2020
- 2020-09-17 CN CN202022038765.8U patent/CN213317722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116786732A (en) * | 2023-08-09 | 2023-09-22 | 英科钛紧固件设备(上海)有限公司 | Thread rolling machine capable of adjusting position of spindle assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210601 |