CN216759087U - Multifunctional tool rest of hand-operated flange sealing repair machine - Google Patents
Multifunctional tool rest of hand-operated flange sealing repair machine Download PDFInfo
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- CN216759087U CN216759087U CN202122816586.7U CN202122816586U CN216759087U CN 216759087 U CN216759087 U CN 216759087U CN 202122816586 U CN202122816586 U CN 202122816586U CN 216759087 U CN216759087 U CN 216759087U
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Abstract
The utility model discloses a multifunctional tool rest of a hand-operated flange seal repairing machine, which comprises: the tool comprises a repairing machine body, a chassis expansion structure, a tool rest and a tool, wherein a main shaft is arranged on one side in the repairing machine body, the chassis expansion structure is arranged at one end of the bottom of the main shaft, the tool rest is arranged on one side of the outer wall of the repairing machine body, the tool is arranged in the tool rest, a flange is arranged on the outer side of the chassis expansion structure, a hand wheel screw is arranged on one side of a tool rest lead screw hand wheel, a tool rest end cover is arranged on the top of the tool rest on the outer side of the tool rest lead screw, a gasket is arranged on the outer wall of the upper half part of the tool rest lead screw, the tool rest lead screw hand wheel is rotated, a tool handle can be driven to move along a square hole of the tool rest, and a tool handle fixing screw is used for locking the tool handle during machining, so that the machining precision is improved. The cutter rest is provided with a square hole which is in sliding fit with the cutter bar, the cutter bar is provided with a threaded hole and is in spiral fit with a cutter rest feed screw, and the structure is compact.
Description
Technical Field
The utility model relates to the technical field of petroleum, chemical engineering, natural gas and pipeline engineering, in particular to a multifunctional knife rest of a hand-operated flange seal repairing machine.
Background
For a large tank body or complex pipeline engineering, a large number of small flanges are often arranged, and the flanges can adopt various sealing forms to ensure that the leakage of the oil, water, gas and the like of the conveying medium is avoided. These small flanges are generally welded together by a welding process, which causes a certain thermal deformation, and for flanges with high sealing requirements, the welding deformation causes sealing failure. In addition, for equipment in service for many years, seal failure can also be caused by long-term chemical corrosion of the conveying medium. The flange sealing repair equipment is mainly used for repairing and processing the sealing plane of the flange.
The traditional tool rest generally comprises a tool rest fixing plate and a tool rest moving plate, wherein the moving plate and the fixing plate are generally guided by a dovetail guide rail or a linear guide rail, a feed screw rod and a feed nut kinematic pair are generally driven by rotating a hand wheel to realize the displacement of the tool rest moving plate, and a square or circular groove for installing a tool bar is often machined on the tool rest moving plate. The overall tool holder is relatively large in size and limited in flexibility, particularly in installation space on small-sized processing equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multifunctional tool rest of a hand-operated flange sealing repair machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hand multi-functional knife rest of sealed repairing machine of flange includes: the repairing machine comprises a repairing machine body, a chassis expansion structure, a knife rest and a knife, wherein a main shaft is arranged on one side inside the repairing machine body, the chassis expansion structure is arranged at one end of the bottom of the main shaft, the knife rest is arranged on one side of the outer wall of the repairing machine body, the knife is arranged inside the knife rest, a flange is arranged on the outer side of the chassis expansion structure, a knife rest lead screw is arranged on one side of the inner wall of the knife rest, a knife rest lead screw hand wheel is arranged at one end of the top of the knife rest lead screw, a hand wheel screw is arranged on one side of the knife rest lead screw, a knife rest end cover is arranged on the outer side of the knife rest lead screw, a gasket is arranged on the outer wall of the upper half of the knife rest lead screw, an elongated slot is formed in one side of the knife rest, a knife rest fixing screw is arranged inside the elongated slot, and a knife rest fixing screw is arranged on the position, where the knife rest outer wall is located, at the connecting position of the knife rest.
Further, the repairing machine body comprises: the spindle box is internally provided with a bearing at the joint with the spindle, the spindle box is internally provided with a stop washer and a round nut which are positioned on the outer side of the top of the spindle, the top of the spindle box is provided with an upper end cover which is positioned above the round nut, the center of the inside of the upper end cover is provided with a pull rod, the outer side of the pull rod is provided with a pull rod nut, the top of the pull rod nut is provided with a pull rod nut hand wheel, one side of the pull rod nut hand wheel is provided with a positioning screw, the outer wall of the spindle box is provided with a dovetail slide plate at the connecting part of a tool rest, the inside of the spindle box is provided with guide rails at the upper side and the lower side of the dovetail slide plate, the dovetail slide plate is provided with a feed nut at the inside of the spindle box, the feed screw is arranged inside the spindle box and meshed with the feed nut, the outside of one end of the feed screw is provided with a worm wheel inside the spindle box, and a first bearing is arranged between the inner wall of the spindle box and the worm wheel, the worm gear feeding mechanism is characterized in that a first flat key is arranged between the worm gear and the feeding screw, a worm gear end cover is arranged at one end of the spindle box and located on the outer side of the feeding screw, a second bearing is arranged between the inner wall of the worm gear end cover and the feeding screw, a feeding hand wheel is arranged at one end of the feeding screw and located on the outer side of the spindle box, a handle is arranged on one side of the outer wall of the feeding hand wheel, a second flat key and a fixing screw are arranged at the joint of the feeding screw and the feeding hand wheel, a worm is arranged at one side of the worm gear inside the spindle box, a bearing sleeve is arranged at the joint of the inner wall of the spindle box and the worm, a needle bearing is arranged between the bearing sleeve and the worm, a third bearing is arranged above the needle bearing on the outer wall of the worm, a worm end cover is arranged on the outer side of the worm at the top of the spindle box, and a sealing cover is arranged below the worm at the bottom of the spindle box.
Further, the cutter comprises a cutter handle and a blade, and the blade is connected with one side of the bottom of the cutter handle through a screw.
Further, the chassis structure of tensioning expands draws the dish including expanding, expand and draw the dish to be connected with the main shaft bottom through the screw, expand and draw the dish bottom outside and be equipped with the tight sloping block that expands, it is fast to expand the sloping block outside and have the extension through screw connection.
Further, the handle includes: straight handle of a knife, left curved handle of a knife and right curved handle of a knife.
Furthermore, threaded mounting holes are formed in the positions, located on the tool rest connecting positions, of the two sides of the dovetail sliding plate.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the arrangement of the tool rest, the tool and the tool rest lead screw, when the multifunctional tool rest of the hand-operated flange seal repairing machine is used, the tool rest lead screw hand wheel is rotated, the tool handle can be driven to move along the square hole of the tool rest, and the tool handle fixing screw is used for locking the tool handle during machining, so that the machining precision is improved. The cutter rest is provided with a square hole which is in sliding fit with the cutter bar, the cutter bar is provided with a threaded hole and is in spiral fit with a cutter rest feed screw, and the structure is compact. The long groove is formed in the tool rest, so that the fixing flexibility of the tool rest is improved, and the angle and the position can be freely swung. The tool is provided with three tool shanks, namely a straight tool shank, a left bent tool shank and a right bent tool shank, and all the tool shanks can be directly arranged on the tool rest. The tool rest can be arranged on the dovetail sliding plate in the forward direction and the reverse direction, and the dovetail sliding plate is provided with two fixing threaded holes at different positions. The handle of a knife can be changed, and left side bent handle of a knife can process littleer flange, and right side bent handle of a knife can process great flange, has effectively increased the processing scope under the unchangeable condition of host computer size.
Drawings
FIG. 1 is a view of the installation of the apparatus of the present invention (tool holder installation in the forward direction);
FIG. 2 is an exploded view of the spindle expansion structure of the present invention;
FIG. 3 shows the internal structure of the spindle according to the present invention;
FIG. 4 is a cross-sectional view of the feed screw of the present invention;
FIG. 5 is a cross-sectional view of the worm gear drive of the present invention;
FIG. 6 is an exploded view of the tool holder of the present invention;
FIG. 7 is a reverse installation and left bending tool holder of the present invention;
FIG. 8 shows the forward mounting and right-hand bending of the tool holder of the present invention.
In the figure: 1-repairing machine body; 101-a main spindle box; 102-a main shaft; 103-a bearing; 104-a stop washer; 105-round nuts; 106-upper end cap; 107-tie rod nuts; 108-pull rod nut handwheel; 109-set screws; 110-dovetail slide; 111-a guide rail; 112-a feed nut; 113-feed screw; 114-a worm gear; 115-a first bearing; 116-a second bearing; 117-first flat bond; 118-worm gear end cap; 119-a feed handwheel; 120-a second flat bond; 121-a handle; 122-a set screw; 123-a power hand wheel; 124-fastening screws; 125-worm end cap; 126-a third bearing; 127-needle bearings; 128-a bearing housing; 129-worm; 130-a sealing cover; 131-a pull rod;
2-a chassis expansion structure; 201-expanding the oblique block; 202-expanding and tensioning a pull disc; 203-an extension block;
3-a flange;
4-a tool rest; 401-tool holder screw; 402-tool holder lead screw hand wheel; 403-hand wheel screw; 404-tool holder end cap; 405-a washer; 406-tool holder set screw; 407-shank set screw; 408-long groove;
5-cutting tools; 501-a knife handle; 502-blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a hand multi-functional knife rest of sealed repairing machine of flange includes: a repairing machine body 1 and a chassis expansion structure 2, the repairing machine comprises a tool rest 4 and a tool 5, one side inside a repairing machine body 1 is rotatably connected with a main shaft 102, one end of the bottom of the main shaft 102 is connected with a chassis expansion structure 2 through a screw, one side of the outer wall of the repairing machine body 1 is connected with the tool rest 4 through a screw, the inside of the tool rest 4 is connected with the tool 5 through a screw, a flange 3 is clamped on the outer side of the chassis expansion structure 2, one side of the inner wall of the tool rest 4 is rotatably connected with a tool rest lead screw 401, one end of the top of the tool rest lead screw 401 is clamped with a tool rest lead screw hand wheel 402, one side of the tool rest lead screw hand wheel 402 is in threaded connection with a hand wheel screw 403, the top of the tool rest 4 is positioned on the outer side of the tool rest lead screw 401 and is connected with a tool rest end cover 404 through a screw, a gasket 405 is clamped on the outer wall of the top of the tool rest lead screw 401, one side of the tool rest 4 is provided with an elongated slot 408, a tool rest fixing screw 406 is arranged inside the elongated slot 408, and a tool rest fixing screw 407 is arranged on the connecting portion of the outer wall of the tool rest 4.
The repairing machine body 1 includes: the spindle box 101 is provided with a bearing 103 at the joint of the inside of the spindle box 101 and the spindle 102, a stop washer 104 and a round nut 105 are clamped at the outer side of the top of the spindle 102 inside the spindle box 101, an upper end cover 106 is connected to the upper side of the round nut 105 at the top of the spindle box 101 through a screw, a pull rod 131 is clamped at the center of the inside of the upper end cover 106, a pull rod nut 107 is clamped at the outer side of the pull rod 131, a pull rod nut hand wheel 108 is clamped at the top of the pull rod nut 107, a positioning screw 109 is connected to one side of the pull rod nut hand wheel 108 through a screw thread, and a dovetail slide plate 110 is slidably connected to the connecting part of the spindle box 101, which is located on the tool rest 4, on the outer wall.
The main shaft 102 is rotatably connected to the main spindle head 101 by two tapered roller bearings. The upper end of the main shaft 102 is provided with threads and grooves, which are matched with a round nut 105 and a stop washer 104, the clearance of the bearing 103 is adjusted by rotating the round nut 105, and the looseness prevention is carried out by the stop washer 104. An upper end cover 106 is connected to the upper end of the main spindle box 101. The pull rod nut 107 is rotatably disposed in a cylindrical hole at the upper end of the main shaft 102, and is restricted from moving axially by the upper end cap 106, and the internal thread of the pull rod nut 107 and the pull rod 131 form a thread transmission. The draw rod nut 107 is connected with a draw rod nut hand wheel 108 into a whole through a positioning screw 109.
The blade holder 4 is fixed to the dovetail slide 110 by bolts, and the blade 5 is mounted on the blade holder 4. The dovetail slide plate 110 is slidably engaged with two guide rails 111, and the two guide rails 111 are fixed to the headstock 101. The dovetail slide 110 is provided with a feed nut 1112 therein, and forms a screw drive with the feed screw 113. The feed screw 113 and the worm wheel 114 are connected to transmit a torque force by a first flat key 117, the worm wheel 114 and the feed screw 113 are supported by a first bearing 115 and a second bearing 116, the second bearing 116 is provided in a worm wheel cover 118, and the worm wheel cover 118 is connected to and fixed to the headstock 101. The feed screw 113 and the feed hand wheel 119 are connected by a second flat key 120 to transmit torque, and are limited from moving axially by a set screw 122. The handle 121 is integrally connected to the feed handwheel 119.
A worm 129 is rotatably connected to one side, located on the worm wheel 114, of the inner portion of the spindle box 101, a bearing sleeve 128 is clamped at the joint of the inner wall of the spindle box 101 and the worm 129, a needle bearing 127 is arranged between the bearing sleeve 128 and the worm 129, a third bearing 126 is arranged on the outer wall of the worm 129 and located above the needle bearing 127, a worm end cover 125 is clamped at the top of the spindle box 101 and located on the outer side of the worm 129, and a sealing cover 130 is clamped at the bottom of the spindle box 101 and located below the worm 129.
The worm 129 is in driving fit with the worm wheel 114, and the worm 129 is arranged in the third bearing 126 and the needle bearing 127 in a penetrating way to form a rotating support. The bearing sleeve 128 is internally provided with a needle bearing 127, the upper end of the bearing sleeve is provided with a third bearing 126, and the worm end cover 125 limits the axial movement of the bearing. The upper end of the worm 129 is fixed with the power hand wheel 123 into a whole through a fastening screw 124. The sealing cover 130 performs dust sealing.
The main shaft 102 is tightly expanded on the inner wall of the hole of the flange 3 to form a fixed support with the flange 3. The hand grips power hand wheel 123, rotates headstock 101, and worm 129 produces rotary driving power, and drive worm wheel 114 rotates, orders about feed screw 113 and rotates, and feed nut 112 drives forked tail slide 110 and carries out radial feed along guide rail 111 under feed screw 113's spiral drive power to the blade 5 that drives on the knife rest 4 carries out lathe work to the flange plane. When a stroke is finished, the cutter needs to be withdrawn manually, and because the worm gear transmission has self-locking property, the worm 129 needs to be lifted upwards to be separated from the worm gear 114, then the feeding hand wheel 119 is rotated to withdraw the cutter frame, and the next cutting operation is repeated.
Cutter 5 includes handle of a knife 501 and blade 502, and blade 502 passes through the screw to be connected with handle of a knife 501 bottom one side, and the chassis structure 2 that expands draws dish 202 including expanding, expands and draws dish 202 to be connected bottom main shaft 102 through the screw, expands and draws dish 202 bottom outside joint to have the tight sloping block 201 that expands, expands and tightly draws the sloping block 201 outside to have the fast 203 of extension through the screw connection, and handle of a knife 501 includes: straight handle of a knife, left curved handle of a knife and the curved handle of a knife of right side, forked tail slide 110 both sides are located the knife rest 4 connection position and are seted up threaded mounting hole.
The inside square groove that has of knife rest 4 forms direction sliding fit with handle of a knife 501, and handle of a knife 501 is equipped with the screw hole, forms screw-thread fit with knife rest lead screw 401, and knife rest lead screw 401 is located in the cylinder hole of knife rest 4 upper end to adjust the pivoted clearance through two packing rings 405, knife rest end cover 404 is fixed and is used for restricting the axial displacement of knife rest lead screw 401 in knife rest 4 upper end. Scales for indicating the feeding depth are marked on the tool holder lead screw hand wheel 402 and are fixed with the tool holder lead screw 401 through a hand wheel screw 403. A machining blade 502 is attached to an end of the shank 501.
The tool holder 4 is provided with a long groove 408, a tool holder fixing screw 406 passes through the long groove 408 to fix the tool holder 4 on the dovetail sliding plate 110, and the dovetail sliding plate 110 is provided with two threaded holes for fixing, so that the tool holder can be flexibly selected according to space. The handle 501 may be connected to a straight handle, a left curved handle and a right curved handle, respectively. The blade carrier 4 can be mounted to the blade carrier slide in the forward direction as shown in fig. 7, or can be turned through 180 ° so as to be mounted to the blade carrier slide in the reverse direction as shown in fig. 8. The left bent handle increases the minimum processing range, and the right bent handle increases the maximum processing range.
The working principle is as follows: when the multifunctional tool rest of the hand-operated flange sealing repair machine is used, the tool rest lead screw hand wheel 402 is rotated to drive the tool rest 501 to move along the square hole of the tool rest 4, and the tool rest fixing screw 407 is used for locking the tool rest 501 during machining, so that machining precision is improved. The cutter rest 4 is provided with a square hole which is in sliding fit with the cutter bar, the cutter bar is provided with a threaded hole and is in spiral fit with a cutter rest feed screw, and the structure is compact. The long groove 408 is arranged on the tool rest 4, so that the fixing flexibility of the tool rest is increased, and the angle and the position can be freely swung. The tool is provided with three tool handles, namely a straight tool handle, a left bent tool handle and a right bent tool handle, and the three tool handles can be directly arranged on a tool rest. The tool holder 4 can be mounted to the dovetail slide 110 in both forward and reverse directions, and the dovetail slide 110 has two fixing threaded holes at different positions. The handle of a knife 501 can be changed, and left side curved handle of a knife can process littleer flange, and right side curved handle of a knife can process great flange, has effectively increased the processing scope under the unchangeable condition of host computer size.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A hand multi-functional knife rest of sealed repairing machine of flange includes: repairing machine body (1), chassis compact structure (2), knife rest (4) and cutter (5), its characterized in that: a main shaft (102) is arranged on one side inside the repairing machine body (1), a chassis expansion structure (2) is arranged at one end of the bottom of the main shaft (102), a tool rest (4) is arranged on one side of the outer wall of the repairing machine body (1), a cutter (5) is arranged inside the tool rest (4), a flange (3) is arranged on the outer side of the chassis expansion structure (2),
knife rest (4) inner wall one side is equipped with knife rest lead screw (401), knife rest lead screw (401) top one end is equipped with knife rest lead screw hand wheel (402), knife rest lead screw hand wheel (402) one side is equipped with hand wheel screw (403), knife rest (4) top is located knife rest lead screw (401) outside and is equipped with knife rest end cover (404), first outer wall of knife rest lead screw (401) is equipped with packing ring (405), knife rest (4) one side is equipped with elongated slot (408), inside knife rest set screw (406) that is equipped with of elongated slot (408), knife rest (4) outer wall is located cutter (5) connection position and is equipped with handle of a knife set screw (407).
2. The multifunctional tool rest of the hand-cranking flange sealing repair machine according to claim 1, characterized in that: the repairing machine body (1) comprises: the novel spindle box comprises a spindle box (101), a bearing (103) is arranged at the joint of the inside of the spindle box (101) and a spindle (102), a stop washer (104) and a round nut (105) are arranged on the outer side of the top of the spindle (102) inside the spindle box (101), an upper end cover (106) is arranged on the top of the round nut (105) on the top of the spindle box (101), a pull rod (131) is arranged in the center of the inside of the upper end cover (106), a pull rod nut (107) is arranged on the outer side of the pull rod (131), a pull rod nut hand wheel (108) is arranged on the top of the pull rod nut (107), a positioning screw (109) is arranged on one side of the pull rod nut hand wheel (108), a dovetail slide plate (110) is arranged at the joint of the outer wall of the spindle box (101) and a tool rest (4),
guide rails (111) are arranged on the upper side and the lower side of a dovetail sliding plate (110) in the spindle box (101), a feed nut (112) is arranged on one side of the dovetail sliding plate (110) in the spindle box (101), a feed screw (113) is arranged in the spindle box (101), the feed screw (113) is meshed with the feed nut (112), a worm wheel (114) is arranged on the outer side of one end, located at the feed screw (113), of the spindle box (101), a first bearing (115) is arranged between the inner wall of the spindle box (101) and the outer wall of the worm wheel (114), a first flat key (117) is arranged between the worm wheel (114) and the feed screw (113), a worm wheel end cover (118) is arranged on the outer side of the feed screw (113) at one end of the spindle box (101), a second bearing (116) is arranged between the inner wall of the worm wheel end cover (118) and the feed screw (113), and a feed screw (119) is arranged on the outer side of the spindle box (101) at one end of the feed screw (113), a handle (121) is arranged on one side of the outer wall of the feeding hand wheel (119), a second flat key (120) and a fixing screw (122) are arranged at the joint of the feeding screw (113) and the feeding hand wheel (119),
a worm (129) is arranged on one side, located on the worm wheel (114), of the inner portion of the spindle box (101), a bearing sleeve (128) is arranged at the joint of the inner wall of the spindle box (101) and the worm (129), a needle roller bearing (127) is arranged between the bearing sleeve (128) and the worm (129), a third bearing (126) is arranged on the outer wall of the worm (129) and located above the needle roller bearing (127), a worm end cover (125) is arranged on the top of the spindle box (101) and located on the outer side of the worm (129), and a sealing cover (130) is arranged on the bottom of the spindle box (101) and located below the worm (129).
3. The multifunctional tool rest of the hand-cranking flange sealing repair machine according to claim 1, is characterized in that: the cutter (5) comprises a cutter handle (501) and a blade (502), wherein the blade (502) is connected with one side of the bottom of the cutter handle (501) through a screw.
4. The multifunctional tool rest of the hand-cranking flange sealing repair machine according to claim 1, is characterized in that: the chassis tensioning structure (2) comprises a tensioning disc (202), the tensioning disc (202) is connected with the bottom of the main shaft (102) through a screw, a tensioning inclined block (201) is arranged on the outer side of the bottom of the tensioning disc (202), and an extension block (203) is connected to the outer side of the tensioning inclined block (201) through a screw.
5. The multifunctional tool rest of the hand-cranking flange sealing repair machine according to claim 3, is characterized in that: the tool shank (501) comprises: straight handle of a knife, left curved handle of a knife and right curved handle of a knife.
6. The multifunctional tool rest of the hand-cranking flange sealing repair machine according to claim 2, is characterized in that: the two sides of the dovetail sliding plate (110) are provided with threaded mounting holes at the connection part of the tool rest (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122816586.7U CN216759087U (en) | 2021-11-17 | 2021-11-17 | Multifunctional tool rest of hand-operated flange sealing repair machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122816586.7U CN216759087U (en) | 2021-11-17 | 2021-11-17 | Multifunctional tool rest of hand-operated flange sealing repair machine |
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| CN216759087U true CN216759087U (en) | 2022-06-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070485A (en) * | 2022-07-12 | 2022-09-20 | 浙江翰德圣智能再制造技术有限公司 | Online hand flange lathe |
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2021
- 2021-11-17 CN CN202122816586.7U patent/CN216759087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070485A (en) * | 2022-07-12 | 2022-09-20 | 浙江翰德圣智能再制造技术有限公司 | Online hand flange lathe |
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