CN202804669U - Lathe central frame used for processing shaft type workpiece - Google Patents
Lathe central frame used for processing shaft type workpiece Download PDFInfo
- Publication number
- CN202804669U CN202804669U CN 201220423211 CN201220423211U CN202804669U CN 202804669 U CN202804669 U CN 202804669U CN 201220423211 CN201220423211 CN 201220423211 CN 201220423211 U CN201220423211 U CN 201220423211U CN 202804669 U CN202804669 U CN 202804669U
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- hole
- support
- sliding sleeve
- screw
- lead screw
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Abstract
The utility model relates to a lathe central frame used for processing a shaft type workpiece. The lathe central frame used for processing the shaft type workpiece is used for assisting the location when the shaft type workpiece of the lathe is processed. The lathe central frame used for processing the shaft type workpiece is characterized by comprising a support, and a horizontal through hole which is arranged at the upper portion of the support. Lead screw holes are all formed in the side wall of the support along the circumferential direction of the through hole, axis of each lead screw hole coincides with a radial transmission line of the through hole. Each lead screw hole is provided with a sliding sleeve, and the sliding sleeve fits in with the lead screw hole in a circumferential mode. One end of the sliding sleeve extends out of the support, and adjusting holes which are vertical to the lead screw axis are formed in the sliding sleeve. A lead screw is arranged in the sliding sleeve, the lead screw matches with the sliding sleeve in a screw-thread fit, the lead screw is arranged at one end of the through hole of the support, and a top cap is arranged at the end of the lead screw. A cushion block is arranged under the support, fixing holes are arranged at both at the lower portion of the support and on the cushion block, a bolt is arranged between the two fixing holes, one end of the bolt extends out of the fixing hole of the support, and a nut is arranged at the end of the bolt. Due to the adoption of the central frame to conduct assistant location to the shaft type workpiece, the coaxiality of the shaft type workpiece can be guaranteed in the process, precision is high and yield is high.
Description
Technical field
The utility model relates to a kind of lathe clamp for machining, is the auxiliary clamping tool that lathe uses when the processing shaft-like workpiece, i.e. lathe center frame specifically.
Background technology
At present, in field of machining, using lathe when the workpiece of machining shaft shape, all is that shaft-like workpiece is fixed on the chuck of lathe, then the processing department of shaft-like workpiece is processed.Yet, shaft-like workpiece longer dimension when required processing, or the processing department of shaft-like workpiece is when being the middle part, when using lathe to carry out turning operation, the cutter relieving phenomenon can appear in shaft-like workpiece, even slight beating can occur, thereby causes the axiality of the shaft-like workpiece after turning not guarantee, precision is relatively poor, so that fraction defective increases.
The utility model content
Problem to be solved in the utility model provides a kind of shaft-like workpiece processing and uses lathe center frame, adopts this centre frame that shaft-like workpiece is carried out auxiliary positioning, can guarantee the axiality of shaft-like workpiece, and precision is higher, and yields is high.
For addressing the above problem, take following scheme:
Shaft-like workpiece processing of the present utility model is to comprise support with the characteristics of lathe center frame, and horizontal through hole is arranged at the top of this support.On the sidewall of described support along through hole circumferentially be evenly equipped with screw hole, the axis of screw hole all overlaps with the RADIAL of through hole.Sliding sleeve is all arranged in the described screw hole, be axial sliding fit between sliding sleeve and screw hole, an end of sliding sleeve stretches out in rack ventilating hole and crown cap on it.In the described sliding sleeve screw mandrel is arranged, be threaded engagement between screw mandrel and sliding sleeve, an end of screw mandrel stretches out outside support and it is fixed with the adjustment cap.There is cushion block the below of described support, and fixing hole is all arranged on the bottom of support and the cushion block, is provided with a screw in two fixing holes, and the end that screw stretches out on the support fixing hole has nut.
The further improvement of the utility model scheme is in the screw hole of described support axial keyway to be arranged, and the key identical with its length arranged in the keyway, and there is chute the corresponding position on the described sliding sleeve, and the length of chute is greater than key length; Described key places in the keyway along half of its length direction, and second half places in the chute, thereby realizes the axial sliding fit between sliding sleeve and screw hole.
The further improvement of the utility model scheme is that the screw hole quantity on the described support is 3.Like this, shaft-like workpiece is being added man-hour, can position it by 3 screw mandrels, the precision of this 3 point locations is higher, and movement radially can not occur shaft-like workpiece.
The further improvement of the utility model scheme is that described support is divided into the first half and the latter half, and the lower surface of described the first half and the upper surface of the latter half all have horizontal half slot, and support the first half and the latter half are surrounded the horizontal through hole of rear formation.One end of described support the first half and the latter half is hinged, and the other end is combined together by the mode of boss and groove, and there is pin-and-hole boss and position corresponding to groove, and bearing pin is arranged in the pin-and-hole.Like this, when processing identical part, only need carry out the axle center calibration to first part, during follow-up renewal part, only need bearing pin is taken off, again the first half of support is lifted along pin joint, then part is put into, at last support the first half is put down with the latter half locking getting final product.Follow-up part does not need to carry out the axle center calibrating operation of repetition again after assembling.
One side that further improvement project of the present utility model is described support lower surface has along the axial V-shaped groove of through hole.This V-shaped groove can be used for cooperating with ridge shape projection on the lathe guide rail, so that shaft-like workpiece of the present utility model is processed when vertically moving along lathe guide rail with lathe center frame, horizontal skew can not occur.
Adopt such scheme, have the following advantages:
Owing on the support of shaft-like workpiece processing of the present utility model with lathe center frame horizontal through hole is arranged, through hole circumferentially is evenly equipped with screw hole, sliding sleeve and screw mandrel are arranged in the screw hole, sliding sleeve is positioned at an end crown cap of through hole, at the use lathe shaft-like workpiece is carried out turning and add man-hour, still the end with workpiece is fixed on the chuck of lathe, the other end of workpiece then stretches in the rack ventilating hole of this centre frame, then rotate the adjustment cap and make screw mandrel and its rotating in same direction, sliding sleeve is owing to be subject to the restriction of key, can not circumferentially rotate along screw hole, and only can move axially along screw hole, thereby make the top crown live workpiece and workpiece is locked.At this moment, re-use lathe shaft-like workpiece is carried out turning operation, workpiece cutter relieving or jumping phenomena can not occur when turning, can guarantee the axiality of the shaft-like workpiece that processes, and machining accuracy is higher, thereby has increased yields.
Description of drawings:
Fig. 1 is the structural representation that lathe center frame is used in shaft-like workpiece processing of the present utility model;
Fig. 2 be among Fig. 1 A-A to cutaway view.
The specific embodiment:
As depicted in figs. 1 and 2, shaft-like workpiece processing of the present utility model comprises support 1 with lathe center frame, this support 1 is divided into the first half and the latter half, the lower surface of described the first half and the upper surface of the latter half all have horizontal half slot, and support 1 the first half and the latter half are surrounded the horizontal through hole of rear formation 2.One end of described support 1 the first half and the latter half is hinged, and the other end is combined together by the mode of boss and groove, and there is pin-and-hole boss and position corresponding to groove, and bearing pin is arranged in the pin-and-hole.On the sidewall of described support 1 along through hole 2 circumferentially be evenly equipped with screw hole 3, the axis of screw hole 3 all overlaps with the RADIAL of through hole 2.Described screw hole 3 is interior all sliding sleeve 9, and an end of sliding sleeve 9 stretches out in rack ventilating hole 2 and crown cap 10 on it.On described screw hole 3 inwalls axial keyway 4 is arranged, the key identical with its length 5 arranged in the keyway 4, there is chute 6 corresponding position on the sliding sleeve 9, and the length of chute 6 is greater than the length of key 5.Described key 5 places in the keyway 4 along half of its length direction, and second half places in the chute 6, so that 3 of sliding sleeve 9 and screw holes are axial sliding fit.In the described sliding sleeve 9 screw mandrel 8 is arranged, 9 of screw mandrel 8 and sliding sleeves are threaded engagement, and an end of screw mandrel 8 stretches out outside support 1 and it is fixed with and adjusts cap 7.There is cushion block 11 below of described support 1, on the bottom of support 1 and the cushion block 11 fixing hole is arranged all, is provided with a screw 12 in two fixing holes, and the end that screw 12 stretches out on support 1 fixing hole has nut 13.One side of described support 1 lower surface has along the axial V-shaped groove 14 of through hole 2, and it can be used for matching with ridge shape projection on the lathe guide rail.
In the present embodiment, screw hole 3 quantity on the described support 1 are three.Wherein, the first half of support 1 has a screw hole 3, and the latter half of support 1 has 3, three screw holes 3 of two screw holes that support 1 the first half and the latter half are surrounded the circumferential five equilibrium in through hole 2 edges that forms.Simultaneously, the sliding sleeve 9 corresponding with screw hole 2, the quantity of screw mandrel 8 also are three.
During operation, shaft-like workpiece processing of the present utility model is fixed on the lathe guide rail with lathe center frame, its position is at the axle tail place of the shaft-like workpiece of required processing, and an end clamping of shaft-like workpiece is in the lathe chuck, and other end clamping is in the through hole of this centre frame, proofreading and correct two sections cylindricals with dial gauge beats, one section close chuck, one section near centre frame, by adjusting chuck and centre frame, make the both sides meter reading close, can guarantee the concentricity of axle.After adjustment is finished, can process operation to shaft-like workpiece.
Claims (5)
1. lathe center frame is used in shaft-like workpiece processing, it is characterized in that comprising support (1), and horizontal through hole (2) is arranged at the top of this support (1); On the sidewall of described support (1) along through hole (2) circumferentially be evenly equipped with screw hole (3), the axis of screw hole (3) all overlaps with the RADIAL of through hole (2); Sliding sleeve (9) is all arranged in the described screw hole (3), be axial sliding fit between sliding sleeve (9) and screw hole (3), an end of sliding sleeve (9) stretches out in rack ventilating hole (2) and crown cap (10) on it; Screw mandrel (8) is arranged in the described sliding sleeve (9), be threaded engagement between screw mandrel (8) and sliding sleeve (9), an end of screw mandrel (8) stretches out outside support (1) and it is fixed with and adjusts cap (7); There is cushion block (11) below of described support (1), on the bottom of support (1) and the cushion block (11) fixing hole is arranged all, is provided with a screw (12) in two fixing holes, and the end that screw (12) stretches out on support (1) fixing hole has nut (13).
2. shaft-like workpiece as claimed in claim 1 is processed and is used lathe center frame, it is characterized in that in the screw hole (3) of described support (1) axial keyway (4) being arranged, the key identical with its length (5) arranged in the keyway (4), there is chute (6) corresponding position on the described sliding sleeve (9), and the length of chute (6) is greater than the length of key (5); Described key (5) places in the keyway (4) along half of its length direction, and second half places in the chute (6).
3. lathe center frame is used in shaft-like workpiece processing as claimed in claim 1, it is characterized in that screw hole (3) quantity on the described support (1) is 3.
4. shaft-like workpiece as claimed in claim 1 is processed and is used lathe center frame, it is characterized in that described support (1) is divided into the first half and the latter half, the lower surface of described the first half and the upper surface of the latter half all have horizontal half slot, and support the first half and the latter half are surrounded the horizontal through hole of rear formation (2); One end of described support the first half and the latter half is hinged, and the other end is combined together by the mode of boss and groove, and there is pin-and-hole boss and position corresponding to groove, and bearing pin is arranged in the pin-and-hole.
5. use lathe center frame such as each described shaft-like workpiece processing in the claim 1 to 4, it is characterized in that described support (1) one side the having along the axial V-shaped groove (14) of through hole (2) of lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423211 CN202804669U (en) | 2012-08-24 | 2012-08-24 | Lathe central frame used for processing shaft type workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423211 CN202804669U (en) | 2012-08-24 | 2012-08-24 | Lathe central frame used for processing shaft type workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804669U true CN202804669U (en) | 2013-03-20 |
Family
ID=47863612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423211 Expired - Fee Related CN202804669U (en) | 2012-08-24 | 2012-08-24 | Lathe central frame used for processing shaft type workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202804669U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764992A (en) * | 2012-08-24 | 2012-11-07 | 无锡市聚英机械制造有限公司 | Center frame for lathe for processing shaft-shaped workpiece |
| CN103447845A (en) * | 2013-09-06 | 2013-12-18 | 湖州天和机械有限公司 | Shaft-like workpiece fixing device |
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
-
2012
- 2012-08-24 CN CN 201220423211 patent/CN202804669U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764992A (en) * | 2012-08-24 | 2012-11-07 | 无锡市聚英机械制造有限公司 | Center frame for lathe for processing shaft-shaped workpiece |
| CN103447845A (en) * | 2013-09-06 | 2013-12-18 | 湖州天和机械有限公司 | Shaft-like workpiece fixing device |
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
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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: 20130320 Termination date: 20160824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |