CN205290480U - Expanding frock in lathe lathe work - Google Patents
Expanding frock in lathe lathe work Download PDFInfo
- Publication number
- CN205290480U CN205290480U CN201521101881.2U CN201521101881U CN205290480U CN 205290480 U CN205290480 U CN 205290480U CN 201521101881 U CN201521101881 U CN 201521101881U CN 205290480 U CN205290480 U CN 205290480U
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- CN
- China
- Prior art keywords
- frock
- expansion block
- lathe
- pull bar
- expansion
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Abstract
The utility model belongs to the technical field of lathe lathe work frock clamp apparatus, especially, relate to an expanding frock in lathe lathe work. The utility model discloses an expanding frock in lathe lathe work, expanding frock in lathe lathe work include frock body, frock pull rod and expansion block, the axial of frock body on seted up the hole, expansion block and frock pull rod looks rubbing contact, when axial motion was to the frock pull rod, the frock pull rod rubbed with expansion block mutually, and the frock pull rod promotes expansion block and makes radial movement to loosen or the stretching product. The beneficial effects of the utility model are that: be suitable for the company product category is diversified, the product wall thickness the is thin coupling and the production of pipe fitting, the clamping of being convenient for, the work piece dress is got fast, clamping time of the product that can significantly reduce, the intensity of labour of basic skill or training people's operation falls, and make the locking force remain the unanimity throughout, avoided other clamping modes to exert oneself senior general's product and pressed from both sides and be out of shape and scrap.
Description
Technical field
This utility model belongs to lathe turning machining tool fixture apparatus technical field, particularly relates to a kind of lathe turning processing internal-expansion type frock.
Background technology
Company mainly produces the pipe fitting joint of copper, aluminium material, product mostly is the rotary part of thin-walled, when polish, many employing hydraulic pressure and manual self-centering three-jaw carry out product clamping, in order to prevent in finishing passes, product clamping is incessantly, the phenomenon (clamping incessantly skidding can cause destroying (pulling) product appearance and scrapping) skidded occurs, therefore the pressure of hydraulic system is heightened (or being screwed by operator) by boosting-rod, and the wall thickness of product is partially thin, often occur deforming product clip.
Little for diameter and long workpiece, during clamping Excircle machining, the phenomenon of the cutter that easily occurs shaking, cause that the product processed does not meet appearance surfaces and requires and scrap.
Currently used frock clamp is commonly the outer clamping made according to product requirement and interior swelling three-jaw. Wherein interior swelling three-jaw is applicable to the Product processing of large scale (4 inches and above specification), and for the product of less than 4 inches specifications, exists for the complexity of certain use limitation and frock making. For the product that product is long, when making Special three-jaw, in order to prevent adding the cutter that shakes man-hour, retained part also can be made very long, when producing in enormous quantities, clamping repeatedly, can cause that outer clip three-jaw is flared out deformation and presss from both sides loosely product, and this is accomplished by after clamping some three-jaw retaining part of turning again.
Summary of the invention
The purpose of this utility model is in that to solve techniques discussed above problem, a kind of production being suitable for the thin pipe joint of Products wide variety, product wall thickness and pipe fitting is provided, it is easy to clamping, workpiece dress takes quickly, the clamping time of product can be greatly reduced, drop the labor intensity of end operative, make coupling mechanism force remain consistent, avoid other installation way exerted oneself senior general's product clip deformation and scrap lathe turning processing internal-expansion type frock, its technical scheme is as follows:
Lathe turning processing internal-expansion type frock, it is characterised in that described lathe turning processing internal-expansion type frock includes frock body, frock pull bar and expansion block, described frock body axially offer endoporus;Described frock pull bar is assemblied in the endoporus of frock body, and the lower end of frock pull bar offers screwed hole, and screwed hole is connected with the main shaft pull rod screw of lathe, pulls frock pull bar to do axially-movable in the endoporus of frock body by the main shaft pull bar of lathe; The wall of described frock body offers some expansion block stations, it is equipped with expansion block in described expansion block station, expansion block and frock pull bar phase CONTACT WITH FRICTION, when frock pull bar axially moves, frock pull bar rubs mutually with expansion block, frock pull bar promotes expansion block to move radially, thus unclamping or stretching product.
Optimal way is, described frock body includes lower connector, interfix part and upper connector, described lower connector is connected with lathe taper fit, described some expansion block stations are opened in and connect, expansion block station is slightly larger in dimension than expansion block, and the upper and lower place of expansion block station offers and moves radially locating slot; The upper and lower place of described expansion block is provided with and moves radially the radial direction bar that locating slot matches; Described endoporus is divided into hole, mesopore and lower opening, described frock pull bar includes lower guiding connector, executive item and upper guide, screwed hole is opened in the end of lower guiding connector, lower guiding connector and lower opening matched in clearance, executive item is contacted by conical contact face with expansion block, the conical contact face of executive item and expansion block is rubbing surface, and upper guide coordinates with upper interporal lacuna.
Optimal way is, described expansion block station and expansion block offer the hook groove matched, and is provided with and prevents the O that expansion block comes off from frock body in a free state in described hook groove.
Optimal way is, the surface roughness in the conical contact face in described executive item and expansion block face is Ra0.8.
Optimal way is, described lower guiding connector is cylinder, and executive item is circular cone stage body, and the diameter of lower guiding connector is less than the diameter of the small end of executive item.
Optimal way is, the quantity of described expansion block is even number.
The lathe turning processing internal-expansion type frock that this utility model provides, when in use, a whole set of frock is located by connecting by the flange sleeve of the lower connector of frock body Yu this lathe; The main shaft pull bar of frock pull bar and lathe connect through threadeding of screwed hole so that frock pull bar can move axially. Interfix part plays the role of positioning when being product clamping; Lower opening, upper hole and lower guiding connector, upper guide matched in clearance can so that the guide effect played axially when doing axially-movable of the frock pull bar; Expansion block station is slightly larger in dimension than expansion block, it is ensured that every piece of expansion block can be prolonged radial direction and be moved flexibly; The rubbing surface of expansion block and executive item coordinates, it is possible to make the axially-movable of executive item convert the radial motion of expansion block to, thus playing clamping and unclamping product.
This utility model further convenience in order to process, the quantity of expansion block station generally takes even number.
The further executive item of this utility model coordinates with the conical contact face in expansion block face, in the clamping process of whole product, play a major role, in order to enable swelling product better, the taper value in conical contact face takes large values as far as possible, owing to this face is rubbing surface, so the surface roughness in face is Ra0.8, it is possible to make precision more accurate.
This utility model is further in the use procedure of frock, and in order to prevent the movement interference of frock pull bar and expansion block, the diameter of the lower guiding connector of frock pull bar is less than the conical surface top diameter of executive item.
This utility model is further provided with O, and Main Function is to prevent expansion block in a free state from coming off from frock body.
The beneficial effects of the utility model are: be suitable for the production of the thin pipe joint of Products wide variety, product wall thickness and pipe fitting, it is easy to clamping, workpiece dress takes quickly, the clamping time of product can be greatly reduced, the labor intensity of end operative drops, the coupling mechanism force is made to remain consistent, it is to avoid other installation way was exerted oneself the deformation of senior general's product clip and scrapped.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of frock body.
Fig. 3 is the schematic diagram of frock pull bar.
Fig. 4 is the schematic diagram of expansion block.
Fig. 5 of the present utility model unclamps Product Status schematic diagram.
Fig. 6 is clamping Product Status schematic diagram of the present utility model.
Detailed description of the invention
Embodiment is illustrated below in conjunction with Fig. 1 to Fig. 6:
As shown in Figures 1 to 6, lathe turning processing internal-expansion type frock, described lathe turning processing internal-expansion type frock includes frock body 1, frock pull bar 2 and expansion block 3, described frock body 1 axially offer endoporus 4; Described frock pull bar 2 is assemblied in the endoporus 4 of frock body 1, the lower end of frock pull bar 2 offers screwed hole 9, screwed hole 9 is connected with the main shaft pull rod screw of lathe, pulls frock pull bar 2 to do axially-movable in the endoporus 4 of frock body 1 by the main shaft pull bar of lathe; The wall of described frock body 1 offers some expansion block stations 5, it is equipped with expansion block 3 in described expansion block station 5, expansion block 3 and frock pull bar 2 phase CONTACT WITH FRICTION, when frock pull bar 2 axially moves, frock pull bar 2 and expansion block 3 phase friction, frock pull bar 2 promotes expansion block 3 to move radially, thus unclamping or stretching product.
Described frock body 1 includes lower connector 11, interfix part 12 and upper connector 13, described lower connector 11 is connected with lathe taper fit, described some expansion block stations 5 are opened in connection 13, expansion block station 5 is slightly larger in dimension than expansion block 3, and the upper and lower place of expansion block station 5 offers and moves radially locating slot 14; The upper and lower place of described expansion block 3 is provided with and moves radially the radial direction bar 31 that locating slot 14 matches; Described endoporus 4 is divided into hole 41, mesopore 42 and lower opening 43, described frock pull bar 2 includes lower guiding connector 21, executive item 22 and upper guide 23, screwed hole 9 is opened in the end of lower guiding connector 21, lower guiding connector 21 and lower opening 43 matched in clearance, executive item 22 is contacted by conical contact face 6 with expansion block 3, the conical contact face 6 of executive item 22 and expansion block 3 be rubbing surface, upper guide 23 and upper hole 41 matched in clearance.
Described expansion block station 5 and expansion block 3 offer the hook groove 7 matched, is provided with in described hook groove 7 and prevents the O 8 that expansion block 3 comes off from frock body 1 in a free state.
The surface roughness in the conical contact face in described executive item and expansion block face is Ra0.8.
Described lower guiding connector is cylinder, and executive item is circular cone stage body, and the diameter of lower guiding connector is less than the diameter of the small end of executive item.
The quantity of described expansion block is even number.
This product is made up of totally the O of frock body, frock pull bar, expansion block and NBR material four parts. A whole set of frock is located by connecting by the flange sleeve (this locating flange overlaps the general adpting flange positioning sleeve for manufacturing after buying lathe according to company standard) of the lower connector of frock body with this lathe; Frock pull bar is assemblied in the endoporus of frock body, and the screwed hole of end is connected with the main shaft pull rod screw of lathe, pulls frock pull bar to do axially-movable by the main shaft pull bar of lathe; Expansion block is made up of polylith, after being completed by lathe process, line cutting even partition comes, dividing number is even number, expansion block is arranged on the upper connector place of frock body, when axially-movable done by frock pull bar, the executive item of frock pull bar rubs mutually with the conical contact face of expansion block, promotes expansion block to move radially, thus unclamping or stretching product; The primarily serving the purpose of of O is embraced expansion block and is prevented from dropping and losing.
The lower connector of frock body is connected with lathe flange sleeve, and for taper fit, in order to ensure the axiality requirement of frock body and main shaft, generally the employing two cooperation conical surface seven color area methods more than 70% ensure, and the surface roughness at this position is Ra0.8; Interfix part is provided with the M8 screwed hole of 3 deciles, when disassembling fixture, is spun on screwed hole with soket head cap screw and is against in lathe flange sleeve, frock exited by the precession of screw; Playing the role of positioning when interfix part is product clamping; The cylindrical 1-2mm less of the endoporus of product swelling of the upper connector of frock body, it is simple to product easily loads the clamping position of frock; The upper guide of upper hole and lower opening and frock pull bar and lower guiding connector matched in clearance, and guiding when doing axially-movable; Expansion block station is the locus installing expansion block, and this size must take difference, it is ensured that every piece of expansion block can be prolonged radial direction and be moved flexibly, for the convenience processed, the quantity of expansion block station generally takes even number, and expansion block station size takes large values as far as possible, to increase the dynamics of swelling product; Moving radially locating slot is guarantee the installation site that expansion block can move radially, and this size must be consistent with the size of the radial direction bar of expansion block, to ensure product energy easily clamping; The groove that hooks hooking groove and expansion block of upper connector is the position of mounting O-shaped rings, and acting as of this O prevents expansion block in a free state from coming off from frock body. In order to ensure the required precision of Product processing, cylindrical and lower connector axiality requirement, the axiality requirement of upper hole and lower opening and upper connector cylindrical of the upper connector of frock body need to be ensured.
Match with the conical contact face of expansion block in the conical contact face of the executive item of frock pull bar, in the clamping process of whole product, play a major role, in order to enable the endoporus of swelling product better, the taper value in this conical contact face takes large values as far as possible, owing to this face is rubbing surface, so the surface roughness in face is Ra0.8; In the use procedure of frock, in order to prevent the movement interference of frock pull bar and expansion block, the diameter of the lower guiding connector of frock pull bar is less than the conical surface top diameter of executive item. Frock pull bar connects through threadeding of screwed hole with main shaft pull bar, moves axially.
Expansion block is line excision forming after lathe process completes, and during lathe process, the lower portion place of expansion block needs the angle of falling R, in order to smooth transition when should coordinate with pull bar; The size of expansion block cylindrical must be consistent with the endoporus of product, it is ensured that when swelling, the endoporus with product is fitted completely, can clamp product more securely.
O is state's tender, hooks groove size according to the frock body of frock and purchases.
The frock assembled being arranged on lathe adpting flange put, it is firm that frock pull bar is connected with the main shaft pull rod screw of lathe; Product 10 is loaded on internal-expansion type frock body, and fit for locating surface with the end face of product and the interfix part of frock body; Drive frock pull bar to move axially by Machine-Tool Control main shaft pull bar, make the conical contact face of frock pull bar allow the conical contact face stress of expansion block, expansion block is moved radially, by product endoporus stretching, reaches the purpose of processing smoothly.
Claims (6)
1. lathe turning processing internal-expansion type frock, it is characterised in that described lathe turning processing internal-expansion type frock includes frock body, frock pull bar and expansion block, described frock body axially offer endoporus;Described frock pull bar is assemblied in the endoporus of frock body, and the lower end of frock pull bar offers screwed hole, and screwed hole is connected with the main shaft pull rod screw of lathe, pulls frock pull bar to do axially-movable in the endoporus of frock body by the main shaft pull bar of lathe; The wall of described frock body offers some expansion block stations, it is equipped with expansion block in described expansion block station, expansion block and frock pull bar phase CONTACT WITH FRICTION, when frock pull bar axially moves, frock pull bar rubs mutually with expansion block, frock pull bar promotes expansion block to move radially, thus unclamping or stretching product.
2. lathe turning processing internal-expansion type frock as claimed in claim 1, it is characterized in that, described frock body includes lower connector, interfix part and upper connector, described lower connector is connected with lathe taper fit, described some expansion block stations are opened on upper connector, expansion block station is slightly larger in dimension than expansion block, and the upper and lower place of expansion block station offers and moves radially locating slot; The upper and lower place of described expansion block is provided with and moves radially the radial direction bar that locating slot matches; Described endoporus is divided into hole, mesopore and lower opening, described frock pull bar includes lower guiding connector, executive item and upper guide, screwed hole is opened in the end of lower guiding connector, lower guiding connector and lower opening matched in clearance, executive item is contacted by conical contact face with expansion block, the conical contact face of executive item and expansion block is rubbing surface, and upper guide coordinates with upper interporal lacuna.
3. lathe turning processing internal-expansion type frock as claimed in claim 1 or 2, it is characterized in that, described expansion block station and expansion block offer the hook groove matched, is provided with in described hook groove and prevents the O that expansion block comes off from frock body in a free state.
4. lathe turning processing internal-expansion type frock as claimed in claim 2, it is characterised in that the surface roughness in the conical contact face of described executive item and expansion block is Ra0.8.
5. lathe turning processing internal-expansion type frock as claimed in claim 2, it is characterised in that described lower guiding connector is cylinder, and executive item is circular cone stage body, and the diameter of lower guiding connector is less than the diameter of the small end of executive item.
6. lathe turning processing internal-expansion type frock as claimed in claim 1 or 2, it is characterised in that the quantity of described expansion block is even number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101881.2U CN205290480U (en) | 2015-12-28 | 2015-12-28 | Expanding frock in lathe lathe work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101881.2U CN205290480U (en) | 2015-12-28 | 2015-12-28 | Expanding frock in lathe lathe work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205290480U true CN205290480U (en) | 2016-06-08 |
Family
ID=56473741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521101881.2U Expired - Fee Related CN205290480U (en) | 2015-12-28 | 2015-12-28 | Expanding frock in lathe lathe work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205290480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458318A (en) * | 2015-12-28 | 2016-04-06 | 浙江伟鑫金属制品有限公司 | Internal expanding type lathe turning machining tool |
| CN108788441A (en) * | 2018-06-04 | 2018-11-13 | 沈阳化工大学 | A kind of flat support device of friction Coiling Welded Pipe anti-pinch |
-
2015
- 2015-12-28 CN CN201521101881.2U patent/CN205290480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458318A (en) * | 2015-12-28 | 2016-04-06 | 浙江伟鑫金属制品有限公司 | Internal expanding type lathe turning machining tool |
| CN108788441A (en) * | 2018-06-04 | 2018-11-13 | 沈阳化工大学 | A kind of flat support device of friction Coiling Welded Pipe anti-pinch |
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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: 20160608 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |