CN216326797U - High-speed rotating automatic clamp for machining slender thin-walled workpiece on lathe - Google Patents
High-speed rotating automatic clamp for machining slender thin-walled workpiece on lathe Download PDFInfo
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- CN216326797U CN216326797U CN202122869281.2U CN202122869281U CN216326797U CN 216326797 U CN216326797 U CN 216326797U CN 202122869281 U CN202122869281 U CN 202122869281U CN 216326797 U CN216326797 U CN 216326797U
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Abstract
The utility model discloses a high-speed rotating automatic clamp for machining a slender thin-walled part on a lathe, which comprises a lengthened flange and a clamp assembly, wherein the lengthened flange is arranged on a main shaft of the lathe, a switching pull rod is arranged in the lengthened flange, and the clamp assembly comprises a clamp shell and a part positioning block; the clamp shell comprises a fixed shell and a movable inner shaft, and the fixed shell is arranged at the processing end of the lengthened flange; the movable inner shaft is arranged in the fixed shell and comprises a tail shaft and an inner supporting piece, the tail shaft is connected with the transfer pull rod, and an outer conical surface is arranged outside the inner supporting piece; the part positioning block is installed at the processing end of the fixed shell, an expansion sleeve is arranged inside the part positioning block, an inner conical surface matched with the outer conical surface is arranged in the expansion sleeve, and after the expansion sleeve is stretched by the inner support piece, the expansion sleeve fixes the inner support of the part. The utility model increases the processing efficiency of parts.
Description
Technical Field
The utility model relates to the technical field of lathe machining, in particular to a high-speed rotating automatic clamp for machining a slender thin-walled piece on a lathe.
Background
In the manufacturing field, a large number of thin and long parts with thin and long walls exist, the thin and long parts have high requirements on straightness and precision, and turning is needed. Because the parts are thin-walled parts, the parts are not firmly clamped on a lathe and are easy to vibrate, bend and deform in the cutting process, and the like, so that the part machining efficiency is low.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the problems of bending deformation and clamping of the slender thin-wall part in the prior art.
In order to solve the technical problem, the utility model provides a high-speed rotating automatic clamp for machining a slender thin-walled piece on a lathe, which comprises: the fixture comprises a lengthened flange and a fixture assembly, wherein the lengthened flange is arranged on a machine tool main shaft, a transfer pull rod is arranged in the lengthened flange, and the fixture assembly comprises a fixture shell and a part positioning block;
the clamp shell comprises a fixed shell and a movable inner shaft, and the fixed shell is arranged at the processing end of the lengthened flange; the movable inner shaft is arranged in the fixed shell and comprises a tail shaft and an inner supporting piece, the tail shaft is connected with the transfer pull rod, and an outer conical surface is arranged outside the inner supporting piece;
the part positioning block is installed at the processing end of the fixed shell, an expansion sleeve is arranged inside the part positioning block, an inner conical surface matched with the outer conical surface is arranged in the expansion sleeve, and after the expansion sleeve is stretched by the inner support piece, the expansion sleeve fixes the inner support of the part.
In a preferred embodiment of the present invention, the machining fluid supply device further includes a water line for introducing the machining fluid, the water line passing through the machine tool spindle, the adapter rod, the tail shaft, and the inner stay.
In a preferred aspect of the present invention, the jig assembly further includes a water passage base, the water passage base is disposed at a fixed end of the inner stay, and a chip stopper is disposed at a processing end of the water passage base.
In a preferred aspect of the present invention, the water passage base is fixed to the inner stay by a water passage screw, and a water passage hole is provided in the water passage screw and communicates with the water passage pipe.
In a preferred mode of the present invention, the chip blocking block is provided with a plurality of chip flushing ports, and the chip flushing ports are communicated with the water through holes and used for introducing the processing liquid to the processing part of the part.
As a preferable mode of the present invention, the processing end of the water passing base is provided with an abutting groove, and the abutting end of the chip blocking block is provided with an abutting protrusion, which is inserted into the abutting groove.
As a preferable mode of the present invention, a spring groove is formed at the abutting end of the abutting projection, an abutting spring is disposed in the spring groove, and the abutting spring is connected to the spring groove and the abutting groove, respectively.
In a preferred mode of the utility model, the outer portion of the chip blocking block is provided with an outer inclined surface for matching with an inner inclined surface of the part.
As a preferred mode of the utility model, a limiting ring is further arranged in the part positioning block, and a limiting cavity is arranged in the limiting ring; the connecting end of the expansion sleeve is provided with a first flange, and the connecting end of the inner supporting piece is provided with a second flange; the first flange and the second flange are positioned in the limiting cavity.
As a preferred mode of the utility model, the clamp assembly further comprises an air checking hole and an air path channel, wherein the air checking hole is formed in the abutting end of the part positioning block; the air channel penetrates through the switching pull rod, the movable inner shaft and the part positioning block, is communicated with the air detection hole and is used for detecting whether the part positioning block and the part are sealed or not through ventilation.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the high-speed rotating automatic clamp for machining the slender thin-walled piece on the lathe fixes the slender thin-walled piece by using the inner support, the part is firmly clamped, and the problems of vibration and bending deformation are reduced in the cutting machining process, so that the machining efficiency of the part is improved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.
FIG. 1 is a schematic view of an automated fixture of the present invention.
FIG. 2 is a schematic cross-sectional view of an automated fixture of the present invention.
FIG. 3 is a first schematic view of the clamp housing of the present invention.
FIG. 4 is a second schematic view of the clamp housing of the present invention.
Fig. 5 is a schematic sectional view of the water passage base of the present invention.
The specification reference numbers indicate: 1. the machine tool comprises a machine tool spindle, 2, a lengthened flange, 4, a part, 5, a water pipeline, 10, a spindle pull rod, 20, a switching pull rod, 21, a first fixing piece, 31, a part positioning block, 32, a second fixing piece, 33, a third fixing piece, 34, a water base, 35, an air channel, 300, a fixing shell, 301, a tail shaft, 302, a supporting piece, 310, an expansion sleeve, 311, a limiting ring, 312, a limiting cavity, 313, a first flange, 314, a second flange, 340, a chip blocking block, 341, a water screw, 342, a water through hole, 343, a chip punching port, 344, a collision groove, 345, a collision convex block, 346, a spring groove, 347, a collision spring, 350 and a gas detection hole.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "second" or "first" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features, or indirectly contacting the first and second features through intervening media. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements does not include a limitation to the listed steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1-5, the embodiment of the high-speed rotating automatic clamp for machining the slender thin-walled workpiece on the lathe comprises a lengthened flange 2 arranged on a main shaft 1 of the lathe and a clamp assembly, wherein a transfer pull rod 20 is arranged in the lengthened flange 2, and the clamp assembly comprises a clamp shell and a part 4 positioning block.
The lengthened flange 2 is assembled and connected with the machine tool spindle 1 through a first fixing piece 21; the clamp shell is assembled and connected with the lengthened flange 2 through a second fixing piece 32; the part 4 positioning block is assembled and connected with the clamp shell through a second fixing piece 32; the first fixing member 21, the second fixing member 32 and the third fixing member 33 include, but are not limited to, a connecting member such as a stud or a screw; as shown in fig. 2, a spindle pull rod 10 is arranged in the machine tool spindle 1, and the front end of the spindle pull rod 10 is connected with the adapting pull rod 20; the adapter rod 20 passes through the extension flange 2.
Preferably, the clamp housing comprises a fixed outer shell 300 and a movable inner shaft, and the fixed outer shell 300 is mounted at the processing end of the lengthened flange 2; the movable inner shaft is arranged in the fixed shell 300 and comprises a tail shaft 301 and an inner supporting piece, the tail shaft 301 is connected with the transfer pull rod 20, and the outer part of the inner supporting piece is provided with an outer conical surface.
As shown in fig. 2, the processing end of the lengthened flange 2 is the right end of the lengthened flange 2; the fixed shell 300 limits the internal movable inner shaft, so that the movable inner shaft moves left and right in the fixed shell; the tail shaft 301 is positioned in the fixed shell 300, the tail end of the tail shaft 301 is connected with the transfer pull rod 20, and the front end of the transfer pull rod 20 is in clearance fit with the tail shaft 301; the support 302 is attached to the tail shaft 301 and the support 302 is located within the locating block of part 4.
Preferably, the part 4 positioning block is installed at the processing end of the fixed housing 300, the expansion sleeve 310 is arranged inside the part 4 positioning block, an inner conical surface matched with the outer conical surface is arranged in the expansion sleeve 310, and after the expansion sleeve 310 is expanded by the inner support member, the expansion sleeve 310 internally supports and fixes the part 4.
As shown in fig. 2, the processing end of the fixed housing 300 is the right end of the fixed housing 300; a limiting ring 311 is further arranged in the positioning block of the part 4, and a limiting cavity 312 is arranged in the limiting ring 311; the tail end of the expansion sleeve 310 is provided with a first flange 313, the tail end of the inner supporting piece is provided with a second flange 314, and the first flange 313 and the second flange 314 are positioned in the limit cavity 312; namely, the spacing ring 311 limits the inner support member and the expansion sleeve 310.
When the part 4 is placed at the front end of a part 4 positioning block, the adapting pull rod 20 pushes the tail shaft 301 to move forwards, the tail shaft 301 pushes the inner supporting piece to move forwards, the inner supporting piece drives the expansion sleeve 310 to move forwards through the limiting ring 311, after the limiting ring 311 reaches the limit of the front position, the inner supporting piece continues to move forwards to prop open the expansion sleeve 310, the expansion sleeve 310 is used for propping the inner wall of the part 4, and the part 4 is fixed through the inner support; after the part 4 is machined, when the tail shaft 301 is pulled by the transfer pull rod 20 to move backwards, the tail shaft 301 pulls the inner supporting piece to move backwards, the inner supporting piece drives the expansion sleeve 310 to move backwards through the limiting ring 311, the expansion sleeve 310 is contracted through the backward movement of the inner supporting piece, and the contraction of the expansion sleeve 310 is cancelled to be abutted against the inner wall of the part 4 so as to loosen the part 4.
Preferably, the machine tool further comprises a water pipeline 5 which penetrates through the machine tool spindle 1, the adapter pull rod 20, the tail shaft 301 and the inner support piece and is used for introducing machining liquid; the clamp assembly further comprises a water passing base 34, the water passing base 34 is arranged at the fixed end of the inner support piece, and a chip blocking block 340 is arranged at the machining end of the water passing base 34; the water passing seat 34 is fixed with the inner support member by a water passing screw 341, a water passing hole 342 is arranged in the water passing screw 341, and the water passing hole 342 is communicated with the water passing pipeline 5.
Wherein the machining liquid is cutting liquid for cooling, cleaning and rust prevention; as shown in fig. 2, the fixed end of the inner support member is the front end of the inner support member; the processing end of the water passing seat 34 is the front end of the water passing seat 34; the water through holes 342 comprise transverse through holes and longitudinal through holes, and the transverse through holes are communicated with the longitudinal through holes; the water passage screw 341 penetrates the chip blocking block 340 and the water passage seat 34 to be in threaded connection with a water passage hole 342 in the support member 302.
Preferably, a plurality of chip flushing holes 343 are formed in the chip blocking block 340, and the chip flushing holes 343 are communicated with the water through holes 342 and are used for introducing the machining liquid into the machining part of the part 4; the processed end of the water passing seat 34 is provided with an interference groove 344, the interference end of the chip blocking block 340 is provided with an interference bump 345, and the interference bump 345 is inserted into the interference groove 344; the interference end of the interference protrusion 345 is provided with a spring groove 346, an interference spring 347 is placed in the spring groove 346, and the interference spring 347 is respectively connected with the spring groove 346 and the interference groove 344; the outer part of the chip blocking block 340 is provided with an outer inclined surface for matching with the inner inclined surface of the part 4.
As shown in fig. 5, the longitudinal through hole is communicated with the interference groove 344, the chip flushing port 343 is communicated with the interference groove 344, the processing liquid enters the transverse through hole through the water passage 5, enters the longitudinal through hole through the transverse through hole, enters the interference groove 344 through the longitudinal through hole, enters the chip flushing port 343 through the interference groove 344, and then flushes into the part 4 through the chip flushing port 343; the abutting end of the chip blocking block 340 is the left end of the chip blocking block 340; the inner inclined plane of the part 4 is an inner wall inclined plane at the tail part of the part 4; when part 4 contradicts with the part 4 locating piece, the inner wall inclined plane of part 4 contradicts with the outer inclined plane of keeping off bits piece 340, waits that part 4 contradicts with the part 4 locating piece and accomplishes, keeps off bits piece 340 and is pushed down by part 4, and through the elasticity of contradicting spring 347, the outer inclined plane of keeping off bits piece 340 contradicts with the inner wall inclined plane of part 4 completely this moment to reduce liquid and processing bits and get into in the part 4 locating piece.
Preferably, the clamp assembly further comprises an air checking hole 350 and an air passage channel 35, wherein the air checking hole 350 is arranged at the abutting end of the part positioning block 31; the air passage 35 penetrates the transfer pull rod 20, the movable inner shaft and the part positioning block 31, and is used for detecting whether the part positioning block 31 and the part 4 are sealed or not.
As shown in fig. 2, the air passage 35 is respectively disposed in the adapting pull rod 20, the fixed housing 300, the tail shaft 301 and the part positioning block 31, and is communicated with each other; the abutting end of the part positioning block 31 refers to the end contacting with the part 4, i.e. the front end of the part positioning block 31 in fig. 2; the air passage 35 is connected with a barometer.
Preferably, the high-speed rotating automatic clamp for machining the slender thin-walled piece on the lathe has the working principle that:
after the part 4 is placed at the front end of a part 4 positioning block, the main shaft pull rod 10 is used for pushing the transfer pull rod 20 to move forwards, the transfer pull rod 20 drives the tail shaft 301 to push the support piece 302 to move forwards, the support piece 302 drives the expansion sleeve 310 to move forwards through the limiting ring 311, after the limiting ring 311 reaches the limit of the front position, the inner support piece props up the expansion sleeve 310, and the expansion sleeve 310 props up the butted part 4 to be internally propped and fixed;
after the part is fixed, ventilating the air channel 35, detecting gas enters the gas detection hole 350 through the air channel 35, identifying the air pressure in the air channel 35 through a gas pressure meter connected with the air channel 35, and judging whether the contact surface of the part 3 and the part positioning block 31 is sealed or not so as to judge whether the part 4 is clamped in place or not;
when the part is machined, machining liquid enters the transverse through hole through the water pipeline 5, enters the longitudinal through hole through the transverse through hole, enters the conflict groove 344 through the longitudinal through hole, enters the chip flushing port 343 through the conflict groove 344, and then flushes the part 4 through the chip flushing port 343, so that machining flushing is provided for the part, and machining cooling is provided for the part;
after the part 4 is machined, the main shaft pull rod 10 is used for pulling the transfer pull rod 20 to move backwards, the transfer pull rod 20 drives the tail shaft 301 to pull the support piece 302 to move backwards, the support piece 302 pulls the limiting ring 311 to move backwards, the inner support piece moves backwards to shrink the expansion sleeve 310, meanwhile, the limiting ring 311 drives the expansion sleeve 310 to move backwards, and the expansion sleeve 310 shrinks to cancel the interference with the inner wall of the part 4 so as to loosen the part 4.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the high-speed rotating automatic clamp for machining the slender thin-walled piece on the lathe, the support piece 302 is driven by the adapter pull rod 20 to open the expansion sleeve 310, so that the slender thin-walled piece is internally supported and fixed, the part 4 is firmly clamped, and the problems of vibration and bending deformation are not easily caused in the cutting machining process, so that the machining efficiency of the part 4 is improved; and the support 302 is driven by the adapter rod 20 to separate from the expansion sleeve 310 to shrink, so that the slender thin-walled piece is loosened, and the part 4 is convenient to take down.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.
Claims (10)
1. A high-speed rotation automatic clamp for machining a slender thin-walled part on a lathe comprises a lengthened flange and a clamp assembly, wherein the lengthened flange is arranged on a main shaft of the lathe;
the clamp shell comprises a fixed shell and a movable inner shaft, and the fixed shell is arranged at the processing end of the lengthened flange; the movable inner shaft is arranged in the fixed shell and comprises a tail shaft and an inner supporting piece, the tail shaft is connected with the transfer pull rod, and an outer conical surface is arranged outside the inner supporting piece;
the part positioning block is installed at the processing end of the fixed shell, an expansion sleeve is arranged inside the part positioning block, an inner conical surface matched with the outer conical surface is arranged in the expansion sleeve, and after the expansion sleeve is stretched by the inner support piece, the expansion sleeve fixes the inner support of the part.
2. The high-speed rotary automated clamp for lathing elongated thin-walled parts according to claim 1, further comprising water lines running through the machine spindle, the adapter rod, the tail shaft and the inner support for introducing machining fluid.
3. The high-speed rotary automated clamp for lathing elongated thin-walled parts according to claim 2, wherein the clamp assembly further comprises a water-through seat disposed at the fixed end of the inner support member, the machining end of the water-through seat being provided with a chip-blocking block.
4. The high-speed, rotating, automated clamp for lathing elongated thin walled parts according to claim 3, wherein the water passage base is secured to the support member by a water passage screw having a water passage hole therein, the water passage hole communicating with a water passage.
5. The high-speed rotating automatic clamp for machining the thin and long thin-walled workpiece on the lathe as claimed in claim 4, wherein a plurality of chip flushing ports are formed in the chip blocking block, and the chip flushing ports are communicated with the water through holes and used for introducing machining liquid to a machining part of the workpiece.
6. The high-speed rotary automated clamp for lathing elongated thin-walled parts according to claim 3, wherein the machining end of the water seat is provided with an interference groove, and the interference end of the chip blocking block is provided with an interference protrusion, and the interference protrusion is inserted into the interference groove.
7. The high-speed rotating automated clamp for lathing elongated thin-walled parts according to claim 6, wherein the abutting end of the abutting projection is provided with a spring groove, and an abutting spring is disposed in the spring groove and connected to the spring groove and the abutting groove respectively.
8. A high-speed rotary automated clamp for lathing elongated thin walled parts according to claim 7, wherein the outer portion of the slug is provided with an outer bevel for engagement with an inner bevel of the part.
9. The high-speed rotary automated clamp for machining elongated thin-walled parts on a lathe according to claim 1, wherein a limiting ring is further arranged in the part positioning block, and a limiting cavity is arranged in the limiting ring; the connecting end of the expansion sleeve is provided with a first flange, and the connecting end of the inner supporting piece is provided with a second flange; the first flange and the second flange are positioned in the limiting cavity.
10. The high-speed rotary automated clamp for lathing elongated thin-walled parts according to claim 1, wherein the clamp assembly further comprises an air checking hole and an air passage channel, the air checking hole is formed in the abutting end of the part positioning block; the air channel penetrates through the switching pull rod, the movable inner shaft and the part positioning block, is communicated with the air detection hole and is used for detecting whether the part positioning block and the part are sealed or not through ventilation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122869281.2U CN216326797U (en) | 2021-11-22 | 2021-11-22 | High-speed rotating automatic clamp for machining slender thin-walled workpiece on lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122869281.2U CN216326797U (en) | 2021-11-22 | 2021-11-22 | High-speed rotating automatic clamp for machining slender thin-walled workpiece on lathe |
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| Publication Number | Publication Date |
|---|---|
| CN216326797U true CN216326797U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122869281.2U Active CN216326797U (en) | 2021-11-22 | 2021-11-22 | High-speed rotating automatic clamp for machining slender thin-walled workpiece on lathe |
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| CN (1) | CN216326797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493613A (en) * | 2023-06-28 | 2023-07-28 | 江苏锐美汽车零部件有限公司 | Turning device for machining automobile motor shell and turning process thereof |
-
2021
- 2021-11-22 CN CN202122869281.2U patent/CN216326797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493613A (en) * | 2023-06-28 | 2023-07-28 | 江苏锐美汽车零部件有限公司 | Turning device for machining automobile motor shell and turning process thereof |
| CN116493613B (en) * | 2023-06-28 | 2023-08-25 | 江苏锐美汽车零部件有限公司 | Turning device for machining automobile motor shell and turning process thereof |
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