CN209773995U - Clamping tool for inner pipe workpiece with irregular excircle - Google Patents
Clamping tool for inner pipe workpiece with irregular excircle Download PDFInfo
- Publication number
- CN209773995U CN209773995U CN201920033852.9U CN201920033852U CN209773995U CN 209773995 U CN209773995 U CN 209773995U CN 201920033852 U CN201920033852 U CN 201920033852U CN 209773995 U CN209773995 U CN 209773995U
- Authority
- CN
- China
- Prior art keywords
- inner pipe
- irregular
- cylinder
- pipe workpiece
- excircle
- 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.)
- Expired - Fee Related
Links
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model discloses a clamping frock for inner tube work piece of irregular excircle, through setting up anti-inner claw structure, including the first cylinder that is used for supporting the inner tube work piece hole of irregular excircle and the second cylinder that is used for fixing on the lathe anchor clamps, first cylinder and second cylinder are connected, stretch into the first cylinder in the hole of the inner tube work piece one end of irregular excircle, support the inner tube work piece of irregular excircle, and the second cylinder stretches out from the inner tube work piece one end of irregular excircle and fixes on the anchor clamps of lathe one end, fixes the inner tube work piece other end of irregular excircle on the anchor clamps of the lathe other end, carries out turning or hole processing to the inner tube work piece of irregular excircle through the lathe; the whole clamping tool is simple in structure and convenient to operate, and meets the use requirements.
Description
Technical Field
The utility model relates to a clamping frock that is used for inner tube work piece of irregular excircle.
Background
The variety of the steel pipes is various, the external dimensions are irregular, and the center frame is difficult to support to turn the inner hole for the pipe with insufficient roundness of the external circle dimension. In addition, for large pipes, the original central frame of the machine tool cannot be clamped, and the common solution is boring machine processing, which causes higher processing cost.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clamping frock for inner tube work piece of irregular excircle aims at solving the unable problem of processing the hole with the centre frame support of steel pipe of current irregular excircle.
The technical scheme of the utility model as follows:
A clamping tool for an inner pipe workpiece with an irregular excircle comprises a first cylinder and a second cylinder, wherein the diameter of the first cylinder is matched with the diameter of an inner hole of the inner pipe workpiece with the irregular excircle; the first cylinder and the second cylinder are connected; the first cylinder stretches into an inner hole at one end of the inner pipe workpiece with the irregular excircle to support the inner pipe workpiece with the irregular excircle, the second cylinder stretches out from one end of the inner pipe workpiece with the irregular excircle to be fixed on a machine tool fixture at one end, the other end of the inner pipe workpiece with the irregular excircle is fixed on the machine tool fixture at the other end, and the inner pipe workpiece with the irregular excircle is processed through a machine tool.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the diameter of the inner hole of the second cylinder is smaller than that of the inner pipe workpiece with the irregular excircle.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that at least two adjusting threaded holes are formed in the circumferential surface of the first cylinder, adjusting bolts are screwed into the adjusting threaded holes, the first cylinder extends into an inner hole at one end of the inner pipe workpiece with the irregular excircle, and the adjusting bolts prop against the inner wall of the inner hole at one end of the inner pipe workpiece with the irregular excircle; the depth of the adjusting bolt screwed into the adjusting threaded hole is adjusted, so that the concentricity of the inner pipe workpiece with an irregular outer circle is adjusted.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the number of the adjusting threaded holes is 4, and two adjacent adjusting threaded holes form a 90-degree included angle.
The clamping tool for the inner pipe workpiece with the irregular excircle comprises a plurality of clamping jaws, wherein the clamping jaws are distributed around the circumference of a second cylinder, each clamping jaw comprises a fixing part and a bulge fixed on the fixing part, the fixing part can be connected with a lathe clamping mechanism, and the bulges are in contact with the outer peripheral surface of the second cylinder.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized by comprising four clamping jaws, wherein the clamping jaws are same in shape and size, and are uniformly distributed along the circumferential direction of the workpiece.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the surface, contacting with the second cylinder, of the protrusion is a contact surface, the contact surface is parallel to the axial direction of the lathe fixture, and the section, parallel to the contact surface, of the protrusion is the same as the contact surface.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the distance between the cross section of the protrusion, which is the same as the contact surface, and the contact surface is 0-3 mm.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the fixing part is provided with a threaded hole, the lathe clamping mechanism is provided with a connecting bolt, and the connecting bolt is in threaded connection with the threaded hole; the hole of the threaded hole is located on the outer peripheral surface of the fixing portion, and the outer peripheral surface of the fixing portion is a convex surface.
The clamping tool for the inner pipe workpiece with the irregular excircle is characterized in that the protrusion and the fixing part are integrally formed.
The utility model has the advantages that: the utility model provides a clamping frock for inner tube work piece of irregular excircle, through setting up anti-inner claw structure, including the first cylinder that is used for supporting the inner tube work piece hole of irregular excircle and the second cylinder that is used for fixing on the lathe anchor clamps, first cylinder and second cylinder are connected, stretch into the first cylinder in the hole of the inner tube work piece one end of irregular excircle, support the inner tube work piece of irregular excircle, and the second cylinder stretches out from the inner tube work piece one end of irregular excircle and fixes on the anchor clamps of lathe one end, fixes the inner tube work piece other end of irregular excircle on the anchor clamps of the lathe other end, carries out turning or hole processing to the inner tube work piece of irregular excircle through the lathe; the whole clamping tool is simple in structure and convenient to operate, and meets the use requirements.
Drawings
Fig. 1 is a structural schematic diagram of the clamping tool for the inner pipe workpiece with irregular excircle, which is arranged on the machine tool in the utility model.
Fig. 2 is a schematic structural diagram of the clamping tool for mounting the inner pipe workpiece with an irregular excircle in the utility model.
Fig. 3 is a schematic structural view of the middle lathe fixture of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the clamping tool for the inner pipe workpiece 3 with the irregular excircle comprises a first cylinder 1 and a second cylinder 2, wherein the diameter of the first cylinder 1 is matched with the diameter of an inner hole of the inner pipe workpiece 3 with the irregular excircle; the first cylinder 1 and the second cylinder 2 are connected; the first cylinder 1 extends into an inner hole at one end of an inner pipe workpiece 3 with an irregular excircle to support the inner pipe workpiece 3 with the irregular excircle, the second cylinder 2 extends out of one end of the inner pipe workpiece 3 with the irregular excircle and is fixed on a clamp at one end of a machine tool, the other end of the inner pipe workpiece 3 with the irregular excircle is fixed on a clamp at the other end of the machine tool, and the inner pipe workpiece 3 with the irregular excircle is processed through the machine tool.
Further, the inner hole diameter size of the second cylinder 2 is smaller than that of the inner hole diameter size of the inner pipe workpiece 3 with the irregular excircle, so that a machining gap exists between the second cylinder 2 and the inner hole of the inner pipe workpiece 3 with the irregular excircle, and the inner hole machining can be carried out on the inner pipe workpiece 3 with the irregular excircle through a machine tool.
Specifically, in order to conveniently adjust the centrality of the inner tube workpiece 3 with the irregular outer circle, at least two adjusting threaded holes are formed in the circumferential surface of the first cylinder 1, adjusting bolts are screwed into the adjusting threaded holes, the first cylinder 1 extends into an inner hole in one end of the inner tube workpiece 3 with the irregular outer circle, and the adjusting bolts prop against the inner wall of the inner hole in one end of the inner tube workpiece 3 with the irregular outer circle; the depth of the adjusting bolt screwed into the adjusting threaded hole is adjusted, so that the concentricity of the inner pipe workpiece 3 with an irregular outer circle is adjusted.
Furthermore, 4 adjusting threaded holes are formed, and an included angle of 90 degrees is formed between every two adjacent adjusting threaded holes; 4-point supporting is realized to the inner hole of 3 one ends of the inner pipe workpieces with irregular excircles by arranging 4 adjusting threaded holes to match with 4 adjusting bolts, and supporting of the inner pipe workpieces with irregular excircles is guaranteed.
Specifically, in order to be installed in cooperation with the second cylindrical body 2, as shown in fig. 3, the lathe fixture includes a plurality of clamping jaws 41, the clamping jaws 41 are distributed around the circumference of the second cylindrical body 2, the clamping jaws 41 include fixing portions 43 and protrusions 44 fixed on the fixing portions 43, the fixing portions 43 can be connected with a lathe clamping mechanism, and the protrusions 44 are in contact with the outer circumferential surface of the second cylindrical body 2. In order to ensure the concentricity of the processed second cylinder 2, the lathe fixture needs to perform inner circle turning on the protrusions 44 on the clamping jaws 41 after being mounted on the lathe clamping mechanism, so as to ensure that each protrusion 44 is in full contact with the outer peripheral surface of the second cylinder 2, thereby improving the processing precision.
Further, the clamping jaws 41 are four in number, and the clamping jaws 41 are the same in shape and size; the four clamping jaws 41 are identical in shape and size to provide a stable clamping effect.
Meanwhile, the clamping jaws 41 are uniformly distributed along the circumferential direction of the second cylinder 2, so that the relative balance of clamping force is ensured, and the clamping effect and the machining precision are improved.
Further, the surface of the protrusion 44 contacting the second cylinder 2 is a contact surface, the contact surface is parallel to the axial direction of the lathe fixture, and the cross section of the protrusion 44 parallel to the contact surface is the same as the contact surface. The distance between the cross section of the protrusion 44, which is the same as the contact surface, and the contact surface is 0-3 mm. The section parallel to the contact surface on the bulge 44 is the same as the contact surface, so that the contact surface difference of each bulge 44 after being cut within 3mm can be ensured to be small, the clamping force of each position on the second cylinder 2 is ensured to be almost equal, and the processing precision is improved.
Furthermore, the contact surface is rectangular, and the edges of the protrusion 44 connected with the four vertexes of the contact surface are perpendicular to the contact surface and have a length of 3mm, so that the requirement of 0-2mm of actual cutting amount is met.
The fixing portion 43 is provided with a threaded hole 46, and the lathe clamping mechanism is provided with a connecting bolt screwed into the threaded hole 46.
meanwhile, the orifice of the threaded hole 46 is located on the outer circumferential surface of the fixing portion 43, and the outer circumferential surface of the fixing portion 43 is convex. The outer peripheral surface of the fixing portion 43 is convex, so that interference does not occur when the lathe fixture is connected with a lathe clamping mechanism.
Further, the protrusion 44 is integrally formed with the fixing portion 43, which facilitates the casting process.
According to the technical scheme, the anti-inner claw structure is arranged to replace a traditional center frame to fix a workpiece, so that the problem that an inner hole of a steel pipe with an irregular outer circle cannot be machined by the aid of the center frame is solved; the clamping tool for the inner pipe workpiece with the irregular excircle is simple in structure, convenient to operate and capable of meeting use requirements.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The clamping tool for the inner pipe workpiece with the irregular excircle is characterized by comprising a first cylinder and a second cylinder, wherein the diameter of the first cylinder is matched with the diameter of an inner hole of the inner pipe workpiece with the irregular excircle; the first cylinder and the second cylinder are connected; the first cylinder stretches into an inner hole at one end of the inner pipe workpiece with the irregular excircle to support the inner pipe workpiece with the irregular excircle, the second cylinder stretches out from one end of the inner pipe workpiece with the irregular excircle to be fixed on a machine tool fixture at one end, the other end of the inner pipe workpiece with the irregular excircle is fixed on the machine tool fixture at the other end, and the inner pipe workpiece with the irregular excircle is processed through a machine tool.
2. The clamping tool for the inner pipe workpiece with the irregular excircle as claimed in claim 1, wherein the diameter of the inner hole of the second cylinder is smaller than that of the inner pipe workpiece with the irregular excircle.
3. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 1, wherein the circumferential surface of the first cylinder is provided with at least two adjusting threaded holes, adjusting bolts are screwed into the adjusting threaded holes, the first cylinder is extended into an inner hole at one end of the inner pipe workpiece with the irregular outer circle, and the adjusting bolts prop against the inner wall of the inner hole at one end of the inner pipe workpiece with the irregular outer circle; the depth of the adjusting bolt screwed into the adjusting threaded hole is adjusted, so that the concentricity of the inner pipe workpiece with an irregular outer circle is adjusted.
4. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 3, wherein the number of the adjusting threaded holes is 4, and two adjacent adjusting threaded holes form an included angle of 90 degrees.
5. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 1, wherein the machine tool fixture comprises a plurality of clamping jaws, the clamping jaws are distributed around the circumference of the second cylinder, each clamping jaw comprises a fixing portion and a protrusion fixed on the fixing portion, the fixing portion can be connected with a lathe clamping mechanism, and the protrusion is in contact with the outer circumferential surface of the second cylinder.
6. The clamping tool for the inner pipe workpiece with the irregular excircle as claimed in claim 5, wherein the number of the clamping jaws is four, the clamping jaws are the same in shape and size, and the clamping jaws are uniformly distributed along the circumferential direction of the workpiece.
7. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 5, wherein the surface of the protrusion, which is in contact with the second cylinder, is a contact surface, the contact surface is parallel to the axial direction of the lathe fixture, and the cross section of the protrusion, which is parallel to the contact surface, is the same as the contact surface.
8. The clamping tool for the inner pipe workpiece with the irregular excircle as claimed in claim 7, wherein the distance between the cross section of the protrusion, which is the same as the contact surface, and the contact surface is 0-3 mm.
9. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 5, wherein the fixing portion is provided with a threaded hole, the lathe clamping mechanism is provided with a connecting bolt, and the connecting bolt is in threaded connection with the threaded hole; the hole of the threaded hole is located on the outer peripheral surface of the fixing portion, and the outer peripheral surface of the fixing portion is a convex surface.
10. The clamping tool for the inner pipe workpiece with the irregular outer circle as claimed in claim 5, wherein the protrusion and the fixing portion are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920033852.9U CN209773995U (en) | 2019-01-09 | 2019-01-09 | Clamping tool for inner pipe workpiece with irregular excircle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920033852.9U CN209773995U (en) | 2019-01-09 | 2019-01-09 | Clamping tool for inner pipe workpiece with irregular excircle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209773995U true CN209773995U (en) | 2019-12-13 |
Family
ID=68792122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920033852.9U Expired - Fee Related CN209773995U (en) | 2019-01-09 | 2019-01-09 | Clamping tool for inner pipe workpiece with irregular excircle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209773995U (en) |
-
2019
- 2019-01-09 CN CN201920033852.9U patent/CN209773995U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209902678U (en) | Auxiliary supporting device for processing cylindrical thin-wall parts | |
| CN201913265U (en) | Elastic clamping device for two ends of long hole | |
| CN204913358U (en) | Modular fixture overturns at four sides | |
| CN109262297B (en) | Machining tool for arc surfaces in long-strip parts | |
| CN108838417B (en) | Clamp for machining shaft sleeve parts | |
| CN109249069B (en) | Step cylinder milling fixture | |
| CN204524955U (en) | A kind of turning attachment for processing the eccentric inner arc surface of ramp | |
| CN214079323U (en) | Three-jaw oversized-aperture hollow power chuck | |
| CN209773995U (en) | Clamping tool for inner pipe workpiece with irregular excircle | |
| CN201579637U (en) | Clamp for turning cylindrical workpieces | |
| CN102211213A (en) | Internal expanding type centering fixture for turning large-scale sleeve parts | |
| CN216463262U (en) | Lathe fixture for overlong thin-wall special-shaped titanium alloy pipe fitting | |
| CN214721260U (en) | Clamp for cutting groove in clamping ring | |
| CN210997573U (en) | Tool for positioning and processing hollow pipe | |
| CN207873710U (en) | A kind of holes positioning accurate clamp for machining | |
| CN211102832U (en) | Tool clamp for drilling machine | |
| CN210360417U (en) | Special frock of cylindricality parts machining | |
| CN212918485U (en) | Workpiece clamp | |
| CN209811268U (en) | V-shaped positioning fixture for chuck | |
| CN214770372U (en) | Precision turning and clamping device for roller ring | |
| CN214559171U (en) | Lathe fixture suitable for processing elastic thin-walled workpiece | |
| CN215788411U (en) | Processing tool for hydraulic support pipe | |
| CN214640358U (en) | Axial adjusting device for assisting three-jaw chuck in clamping | |
| CN218460910U (en) | Internal support type positioning fixture for circular through hole workpiece | |
| CN218136387U (en) | Replaceable tension tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20220109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |