CN220901924U - Workpiece clamping and positioning device for lathe - Google Patents
Workpiece clamping and positioning device for lathe Download PDFInfo
- Publication number
- CN220901924U CN220901924U CN202322541774.2U CN202322541774U CN220901924U CN 220901924 U CN220901924 U CN 220901924U CN 202322541774 U CN202322541774 U CN 202322541774U CN 220901924 U CN220901924 U CN 220901924U
- Authority
- CN
- China
- Prior art keywords
- positioning
- lathe
- workpiece
- clamping
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Gripping On Spindles (AREA)
Abstract
The utility model discloses a workpiece clamping and positioning device for a lathe, which comprises a lathe spindle, wherein a mounting channel is formed in the lathe spindle along an axis; the chuck is connected to the front end of the lathe spindle and is provided with a connecting hole coaxially communicated with the mounting channel; the clamping jaw is arranged on the front end face of the chuck and is provided with a clamping hole coaxially communicated with the connecting hole; the positioning mechanism is penetrated in the installation channel from back to front, the positioning mechanism is provided with a positioning propping part moving along the axis of the installation channel, and the front end of the positioning propping part is a positioning end and is used for propping the rear end of a workpiece clamped by the clamping jaw. The utility model has the advantages of ensuring the uniformity of the rear end positions of the workpieces clamped in the clamping jaws each time, saving the frequent measuring time of the workpieces and the time for disassembling the workpieces due to the measuring, being applicable to the production of the workpieces in medium and large batches, improving the production efficiency of the lathe and the processing precision of the workpieces, adapting to the processing requirements of the workpieces with different lengths and enhancing the adaptability and the universality of the device.
Description
Technical Field
The utility model relates to the technical field of lathe workpiece machining, in particular to a workpiece clamping and positioning device for a lathe.
Background
The lathe is mainly used for turning a rotating workpiece by a turning tool, is mainly used for machining shafts, discs, sleeves and other workpieces with rotating surfaces, and is the most widely used type of machine tool in machinery manufacturing and repairing factories.
As shown in fig. 1, when a workpiece is machined by a conventional lathe, a workpiece 4 is generally clamped by matching a chuck 2 arranged at the front end of a lathe spindle 1 with a claw 3, so that the lathe spindle 1 drives the workpiece 4 to axially rotate; before turning the outer end of the workpiece 4, it is necessary to measure the length from the inner end to the outer end of the workpiece 4 held on the lathe spindle 1, and then to turn the redundant size against the drawing sheet. For a slender workpiece with a short length, the length can be accurately measured by directly measuring the measuring tool, but for a workpiece with a long length and a thick diameter or a shaft workpiece with a step, the accurate length is difficult to measure without directly measuring the workpiece on a lathe, and the clamping position of the lathe is difficult to be consistent when the lathe clamps the workpiece each time, so that the workpiece needs to be frequently disassembled for measurement, and the working efficiency of the lathe and the machining precision of the workpiece are greatly influenced.
Disclosure of Invention
The utility model aims to provide a workpiece clamping and positioning device for a lathe.
In order to achieve the above purpose, the present utility model may adopt the following technical scheme:
the utility model relates to a workpiece clamping and positioning device for a lathe, which comprises the following components:
The lathe spindle is provided with a mounting channel along the axis;
the chuck is connected to the front end of the lathe spindle and is provided with a connecting hole coaxially communicated with the mounting channel;
The clamping jaw is arranged on the front end face of the chuck and is provided with a clamping hole coaxially communicated with the connecting hole;
The positioning mechanism is penetrated in the mounting channel from back to front, the positioning mechanism is provided with a positioning propping part which moves along the axis of the mounting channel, and the front end of the positioning propping part is a positioning end and is used for propping the rear end of a workpiece clamped by the clamping jaw;
specifically, the positioning mechanism includes:
The guide sleeve is adaptively arranged in the installation channel from the rear end of the lathe spindle in a penetrating manner, the rear end of the guide sleeve is provided with a connecting flange connected with the rear end of the lathe spindle, and the guide sleeve is provided with a guide channel along the axis;
the locating rod is arranged in the guide channel in a penetrating mode, the rear end of the locating rod penetrates out of the connecting flange to form a driving end, and connecting threads which are in threaded connection with the rear section of the guide channel in a matching mode are formed in the outer wall of the locating rod, which is close to the driving end.
Further, the locking nut propped against the outer wall of the connecting flange is in threaded connection on the rear section of the positioning rod, and is used for tightly pressing the positioning rod on the outer wall of the connecting flange by adopting the locking nut after the positioning rod is adjusted in place, so that the positioning rod is locked, the positioning rod is prevented from moving along the axial direction of the guide sleeve, and the positioning rod is ensured to accurately position the workpiece in the axial direction.
Further, the outside cover of drive end of locating lever is equipped with protective sleeve, can form effectual protection to the locating lever that outwards wears out from flange, and tubular structure's protective sleeve can also ensure that the drive end of locating lever can easily control simultaneously.
The utility model has the advantages of simple structure and convenient installation and use. The driving end of the positioning rod is driven to rotate, so that the positioning rod moves along the axis of the guide sleeve, the front end of the positioning rod can prop the rear end of a workpiece clamped by the clamping jaw, the workpiece is positioned, the position of the rear end of the workpiece clamped in the clamping jaw each time is ensured to be uniform, the frequent measuring time of the workpiece and the time for disassembling and assembling the workpiece due to measurement are saved, the positioning rod is suitable for the production of middle and large batches of workpieces, and the production efficiency of a lathe and the machining precision of the workpiece are improved; in addition, the front end position of the positioning rod can be accurately adjusted at any time according to the specific length of the workpiece so as to meet the workpiece processing requirements of different lengths, and the adaptability and the universality of the device are enhanced.
Drawings
Fig. 1 is a schematic structural view of a conventional lathe spindle.
Fig. 2 is a schematic structural view of the present utility model.
Fig. 3 is an enlarged view of the positioning mechanism of fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In addition, in the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 2 and 3, the workpiece clamping and positioning device for the lathe comprises a lathe spindle 1 arranged on the lathe, wherein the lathe spindle 1 is used for driving a workpiece 4 to rotate, a mounting channel 5 is formed in the lathe spindle 1 along an axis, the mounting channel 5 is of a cylindrical structure, and a horn mouth with a large front part and a small rear part is formed at the front end of the mounting channel, so that the workpiece 4 can be conveniently guided.
The front end of the lathe spindle 1 is connected with a chuck 2, the chuck 2 is used for fixing a workpiece 4, a connecting hole 6 into which the workpiece 4 can be inserted is formed in the chuck 2, the connecting hole 6 is coaxially communicated with the mounting channel 5, so that the chuck can be aligned with the mounting channel 5, and the workpiece 4 inserted from the connecting hole 6 can extend into the mounting channel 5 just opposite to the mounting channel 5.
A jaw 3 is provided on the front end surface of the chuck 2 (i.e., on the side away from the lathe spindle 1), the jaw 3 is used for clamping and fixing the workpiece 4, a clamping hole 7 coaxially communicated with the connecting hole 6 is provided on the jaw 3, one end of the workpiece 4 can be inserted into the mounting channel 5 of the lathe spindle 1 through the clamping hole 7, and the workpiece 4 can be clamped and fixed under the clamping action of the jaw 3.
In addition, a positioning mechanism is further arranged in the installation channel 5, the positioning mechanism penetrates through the installation channel 5 from back to front, a positioning propping part moving along the axis of the installation channel 5 is arranged on the positioning mechanism, the front end of the positioning propping part is a positioning end of a planar structure and is used for propping the rear end of the workpiece 4 clamped by the clamping jaw 3, and therefore when the clamping jaw 3 clamps the workpiece 4 each time, the rear end of the workpiece 4 is guaranteed to be propped against the positioning end of the positioning propping part, and the length of the workpiece 4 stretching into the installation channel 5 each time can be guaranteed to be consistent.
Specifically, the positioning mechanism comprises a guide sleeve 8 which is adaptively arranged in the installation channel 5 from the rear end of the lathe spindle 1, a connecting flange 9 which is fixedly connected with the rear end of the lathe spindle 1 by bolts is arranged at the rear end of the guide sleeve 8, a guide channel 10 is arranged on the guide sleeve 8 along the axis, and the rear end of the guide channel 10 is an open end positioned on the connecting flange 9 (namely, a central hole which is correspondingly communicated with the guide channel 10 is arranged on the connecting flange 9, so that an open end of an integral structure with the guide channel 10 is formed).
A positioning rod 11 is arranged in the guide channel 10 in a fit way, and the rear end of the positioning rod 11 penetrates out of the connecting flange 9 (namely penetrates out of the rear end of the guide channel 10) to form a driving end. In addition, in order to enable the positioning rod 11 to move forward and backward in the guide channel 10 accurately, a connecting thread should be further formed at the position, close to the rear end, of the outer wall of the positioning rod 11, and an internal thread in threaded connection with the connecting thread is formed at the rear section of the guide channel 10, so that the positioning rod 11 and the guide sleeve 8 are in threaded connection, and further the positioning rod 11 can be rotated to move forward and backward along the guide channel 10, and the displacement of the positioning rod 11 is ensured to be more accurate.
Furthermore, a locking nut 12 can be sleeved on the connecting thread section of the positioning rod 11 in a threaded manner, after the positioning rod 11 is adjusted in place, the locking nut 12 can be screwed to tightly prop against the outer wall of the connecting flange 9, so that further fixing of the positioning rod 11 is formed, the positioning rod 11 is locked, the positioning rod 11 is prevented from axially moving along the guide sleeve 8 when the subsequent lathe spindle 1 performs the rotary motion of workpiece turning, and the accurate positioning of the workpiece 4 in the axial direction of the positioning rod 11 is ensured. In addition, a protective sleeve 13 can be covered outside the driving end of the positioning rod 11, and the protective sleeve 13 can be arranged on a protective cover of a lathe, so that effective protection can be formed for the positioning rod 11 penetrating outwards from the connecting flange 9; meanwhile, the rear end of the protective sleeve 13 with the cylindrical structure is of an open structure, and the driving end of the positioning rod 11 can be controlled easily.
When the lathe is used, the length of the positioning rod 11 screwed into the mounting channel 5 is adjusted according to the length of the workpiece 4 (namely, the distance between the front end of the positioning rod 11 and the front end of the mounting channel 5 is adjusted), then the workpiece 4 is inserted into the mounting channel 5 of the lathe spindle 1 through the clamping jaw 3 and the chuck 2, the inner end of the workpiece 4 is guaranteed to be propped against the front end face of the positioning rod 11, at the moment, the workpiece 4 can be clamped through the clamping jaw 3, and the outer end (namely, the front end of the workpiece 4) of the workpiece 4 can be turned after the workpiece 4 is fixed.
After the turning is finished, the workpiece 4 is taken out and the length is measured, then the workpiece 4 is turned around, reinserted into the mounting channel 5 and propped against the front end of the positioning rod 11, and the workpiece is clamped again through the clamping jaw 3 at the moment, so that the other end of the workpiece 4 is turned.
After turning, the cutter is withdrawn, the position of the cutter is recorded, the workpiece 4 is taken down, the length of the workpiece is measured, the workpiece is compared with the required size of a workpiece processing drawing, and the next workpiece 4 can be processed after the processed workpiece 4 is ensured to be consistent with the drawing requirement.
When the subsequent workpieces 4 are processed, the length can be measured no longer, the workpieces 4 are directly inserted into the mounting channel 5 to turn the outer ends, then the workpieces 4 are turned around to turn the other ends of the workpieces, the turning size of each workpiece 4 can be guaranteed to be consistent without measuring the length, the accurate positioning of the workpieces 4 is realized, the inner end positions of the workpieces 4 clamped in the clamping jaws 3 in each time are guaranteed to be uniform, the tooling processing of the workpieces 4 of the same batch and the same type is realized, the frequent measuring time of the workpieces 4 during processing and the time of frequently dismounting the workpieces 4 due to measurement are saved, the method is suitable for the production of the workpieces 4 in medium and large batches, and the production efficiency of a lathe and the processing precision of the workpieces 4 are improved.
Claims (4)
1. A workpiece clamping and positioning device for a lathe, comprising:
The lathe spindle is provided with a mounting channel along the axis;
the chuck is connected to the front end of the lathe spindle and is provided with a connecting hole coaxially communicated with the mounting channel;
The clamping jaw is arranged on the front end face of the chuck and is provided with a clamping hole coaxially communicated with the connecting hole; and
The positioning mechanism is penetrated in the installation channel from back to front, the positioning mechanism is provided with a positioning propping part moving along the axis of the installation channel, and the front end of the positioning propping part is a positioning end and is used for propping the rear end of a workpiece clamped by the clamping jaw.
2. The workpiece clamping and positioning device for a lathe as recited in claim 1, wherein said positioning mechanism comprises:
The guide sleeve is adaptively arranged in the installation channel from the rear end of the lathe spindle in a penetrating manner, the rear end of the guide sleeve is provided with a connecting flange connected with the rear end of the lathe spindle, and the guide sleeve is provided with a guide channel along the axis; and
The locating rod is arranged in the guide channel in a penetrating mode, the rear end of the locating rod penetrates out of the connecting flange to form a driving end, and connecting threads which are in threaded connection with the rear section of the guide channel in a matching mode are formed in the outer wall of the locating rod, which is close to the driving end.
3. The workpiece clamping and positioning device for a lathe as claimed in claim 2, wherein: and a locking nut propped against the outer wall of the connecting flange is in threaded connection with the rear section of the positioning rod.
4. The workpiece clamping and positioning device for a lathe as claimed in claim 2, wherein: and a protective sleeve is covered outside the driving end of the positioning rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322541774.2U CN220901924U (en) | 2023-09-19 | 2023-09-19 | Workpiece clamping and positioning device for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322541774.2U CN220901924U (en) | 2023-09-19 | 2023-09-19 | Workpiece clamping and positioning device for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220901924U true CN220901924U (en) | 2024-05-07 |
Family
ID=90908404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322541774.2U Active CN220901924U (en) | 2023-09-19 | 2023-09-19 | Workpiece clamping and positioning device for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220901924U (en) |
-
2023
- 2023-09-19 CN CN202322541774.2U patent/CN220901924U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109648379B (en) | Machine tool with workpiece turning function | |
| CN220901924U (en) | Workpiece clamping and positioning device for lathe | |
| CN212823186U (en) | Readable automatic stroke tapping and threading device | |
| CN105798772A (en) | High-precision bar clamping device | |
| CN105033794A (en) | Double-end inner-hole grinding machine | |
| CN211840281U (en) | Rotary type porous drilling machine fixture for thin-wall sleeve part | |
| CN209918911U (en) | Cutter for machining back of tractor shell | |
| CN201446437U (en) | Axial positioning device for clamping and processing small work pieces by spring chucks for machine tool main shaft | |
| CN213135844U (en) | Clamp for step shaft structure and machine tool | |
| CN113927347B (en) | HSK handle of a knife grabbing device | |
| CN212635121U (en) | Combined mandrel clamp convenient to assemble and disassemble | |
| CN108237408B (en) | Rotary machining center fixture | |
| CN218926295U (en) | Novel three-jaw chuck for square stock processing | |
| CN218657189U (en) | Nut internal thread channel grinding frock | |
| CN217194017U (en) | Cylinder sleeve end face hole machining and positioning tool | |
| CN220805521U (en) | Inner hexagonal workpiece machining tool | |
| CN110142626A (en) | A kind of automation multi-angle Quick universal tooling | |
| CN218836889U (en) | Many specifications of removable type screw clamp | |
| CN217860342U (en) | Clamping device for grinding inner hole of thin-wall shaft sleeve | |
| CN204603320U (en) | A kind of lathe spindle tapering positioner | |
| CN214817716U (en) | Automatic drive plate device of grinding machine head frame | |
| CN220240754U (en) | Tool clamp for CNC machining of shaft parts | |
| CN220560442U (en) | Guide bolt and processing tool thereof | |
| CN115007919B (en) | Machining device and machining method for slip support sleeve | |
| CN213531616U (en) | Long-axis workpiece reinforcing tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |