GB2198974A

GB2198974A - Vices

Info

Publication number: GB2198974A
Application number: GB08630148A
Authority: GB
Inventors: Tai-Her Yang
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-12-17
Filing date: 1986-12-17
Publication date: 1988-06-29
Also published as: GB8630148D0

Abstract

In a vice, each of the fixed (102) and movable jaw (103) is provided at both opposite sides in the clamping direction with clamping plates (106); the structure and drive arrangement being such that clamping may be effected in both directions of travel of the movable jaw. <IMAGE>

Description

TITLE: IMPROVEMENT IN THE -stISE ( 61 The conventional parallel clamp-type vise is to clamp and hold a clamp or press a work piece with a strong force for forming, or for pressing and changing its outer configuration. Therefore, its structural feature lies in that the movable jaws and fixed jaws have sturdy machine boday structure, and the opposite inner sides of its two jaws have parallel clamp claw sets, meanwhile, the join relationship of its drive guide rods and guide screws with various jaws preconditioned on that it can unidirectionally bear the applied strong force along the clamping and fixing direction.However, except that some work pieces are clamped and held, some others are of a hollow frame form as shown in Enclosure 1 or a concave slots as shown in Enclosure 2, and if and when this kind of work pieces need to be processed on their outer sides, the above-said clamping and holding way is no longer applicable.To provide a reasonable clamping and holding to this kind of work pieces, this design provides a kind of two clamp jaws, the two (front and rear) sides of which are provided with the clamp claw sets respectively; a guide rod having h structure which can apply forces in two directions; and the movable jaws having a structure to receive the strong'drive in two directions b the manually operated or the electric motor driven guide rod or the oil hydraulic or pneumatic powered elements, thereby providing the above-said work pieces with the clamp vise improvements to clamp and hold the work pieces by its functions to stretch outwardly to clamp and hold the work pieces and also to maintain its original clmaping and holding functions.Besides, when it is used as a table vise, its arrangement has its movable jaws with two-directional traction forces and its screw structure, so the upper and lower rims of the innner guide holes in its fixed jaws can be further made with innner concave terraced tooth form, and the tooth-shaped holes are provides in the end and the tooth-shaped holes are provided in the end and along the perpendicular direction of the guide machine body of the movable jaws to mutually use the opposite drives to clamp and hold the perpendicular work pieces.

This design mekes the outer sides of the two clamp jaws of the conventional çise into the clamp planes with clamp claws, and its drive the clamp planes with clamp claws, and its drive guide rod and nut are made into the vise with new functions to be subjected to the forces in two directions to accept the drive by the manually operated, or electric motor operated or oil hydraulic or pneumaticpowered elements, so the vise can clamp and hold a work piece in two directions and also can push outward to clamp and fix a work piece or can stretch outward to form a work piece, or can tract the inner concave teeth on the upper and lower rims of the inner guide holes in the fixed jaw of the body of the table vise and the tooth holes in the end of the guide machine body of the movable jaws of the body of table vise to vertically clamp a work piece.

DETAILED DESCRIPTION OF THE INVENTION: As known to all, the conventional vises comprise a strong work bench-type vise or drill vise or precision milling machine vise, with a basic structure as follows: i.e. on the inner sides of the parallel clamp jaw, the clamp claws are provided to receive the mutually closing or moving away drive for mutually clamping or releasing a work piece. The vises made according to the above-said structural principle are widely known to the people and also used by them.

However, under various processing conditions, it is unreasonable to say that a work piece onvlyneeds the opposite clamping and fixing principle of design. Since some work pieces are in hollow frame forms or inner concave slots, but when their outside profiles are ready to receive the processing, the above-said vises are unfit to clamp and fix them, but a clamp vise that can push and stretch outward is badly needed.

The improvements on vise in the present invention is designed responsive to the above requirements, mainly the outer sides of the movable jaws and fixed jaws of the vise are further provided with clamp claws, and the traction struction between the drive structure and the movable jaws is designed as structure to use strong tractions in twc directions; on the body of the clamp vise, the support posts to support the drive elements and the drive elements have the join structure respectively to receive the forces in the two directions, thereby providing the strong clamping or streching or pushing actions.The following design of the present inventon is applied to the examplary forms (A) table vise, (B) drill vise, (C) milling machine vise, under the common innovative disclosure, they have the above-said applicatory structural forms as described above: Fig. 1 is an examplary form of the table vise having the two-directional clamping function.

Fig. 1-1 is a top view of Fig. 1.

Fig. 1-2 5 a top side view of Fig. 1.

Fig. 1-3 to 1-9 are various examplary forms of the clamp claw shown in Fig. 1.

Fig. 2 is the table vise in a design of the rear side mounted movable jaw in respect to the application of the structure having the two-directional clamping functions.

Fig. 2-1 is a side view of Fig. 2.

Fig. 2-2 is a top view of Fig. 2.

Figs. 2-3 to 2-9 show the examplary forms of various clmap claws shown in Fig. 2.

Fig. 3 shos an examplary form of the drill vise in respect to the application of the two-directional clamping functions.

Fig 3-1 is a top view of Fig. 3.

Fig. 3-2 is a side view of Fig. 3.

Fig. 3-3 is a cross sectional view of the front view part of Fig. 3.

Figs. 3-4 to 3-10 show examplary forms of various clamp claws shown in Fig. 3.

Fig. 4 is an examplary view of the precision milling machine vise.

Fig. 4-1 is a top view of Fig. 4.

Fig. 4-2 is a side view of Fig. 4.

Fig. 4-3 to 4-9 show the examplary forms of various clmap claws shown in Fig. 4.

(1) As shown in Figs. 1, 1-1, 1-2, an examplary form of the table vise having the two-directional clamping functions is illustrated, which mainly composes: - a body 101 having the fixed jaw 102 which has a two directional clamp claw, the body 101 also having a longitudinal guide hole to receive the machine body of the movable jaw 103, a bottom base provided under the body member for fixing on the work bench or joining a bottom to make angular adjustments, a concave slot 104 in the inner part of the body member to receive the shaft 105 of a coupling gudie rod; ; - a movable jaw 103 with clamp claws 106 on its two sides, its elongated strip-type machine body in a form to couple the longitudinal hole in the machine body in order to receive the drive of the guide rod 102 to reciprocatingly slide therebetween, a round hole 108 in the front end of the machine body to receive the guide screw 107.

- a drive gudie rod 107 passing through the rear hole 108 in the front end of the machine body of the movable jaw, its passing-through section having a thread 109 to receive a posi tioning nut 110, a through hole between the positioning nut 110 and guide rod respectively to receive the positioning cotter pin 111; - a set of shaft 105 having inner screw holes to receive the longitudinal concave slot 104 of the body.

From the above-said vise structure, we can use the positive and reverse rotations of the guide rod 107 to dirve the movable jaws 103 which in turn will clamp the work piece or push or stretch two clamp the work piece.

Under the foundation of the above-said design, we may use the following-listed clamp claw sets to form various wide applications, for instance, as shown in Fig. 1-3, the rotary clamp claw used and disclosed in the USA PAT NO. 2,881,645, so we can make one of its clamp claw have a rotary shaft to be applicable to the innner frames or slots, parallel or non-parallel.

As shown in Fig. 1-4, the US PAT NO. 4,632,374 is used, of which a set of clamp claws have two slidable clamp claws1 so we can use the clamp claw set having function to clamp irregular work pieces and to push and stretch outward; Fig. 1-5 is a slidable clamp claw shown in Fig. 1-4 and provided on the outer side of one of the jaw sets, while the outer side of the other clmap jaw is a flat clamp claw and the inner sides of two jaws are also of the flat clamp claw to stretch and push the irregular work pieces; shown in Fig. 1-6 is the rotary jaw having the slidable clamp claw and flat clamp claw as shown in Fig. 1-4 to clamp a work piece inward or push and stretch a work piece outward.

Fig. 1-7 is an examplary form of two sets of jaws with the slidable clamp claws disclosed in the U.S. PAT NO. 4,632,374 on their inner sides respectively and their outer sides have the outstreching flat clamp claws.

Fig. 1-8 is an examplary form of two sets of jaws with the slidable clamp claws disclosed in the U.S. PAT. NO. 4,632,374 and their inner sides with parallel clamp claws to push and stretch the irregular work pieces.

Fig. 1-9 is an examplary form of two sets of rotary jaws with two slidable clamp claws on their one side and their other side with flat clamp claws.

Since the designed drive screw and movable jaws of the present invention can subject to the forces applied in two directions, said table vise can further use the inner concave tooth terrace shapes 112 provided on the upper and lower rims in the inner side (not on the handle bar side of the guide rod) of the body and the elongated slot hole 113 in the upper side of the end section of the elongated strip-type machine body of the movable jaw, the upper side close to the end of the elongated slot hole 113 is also in a concave tooth-type terrace shape 114, when the screw 103 is driven in a reverse direction, the concave tooth terrace shapes 112 formed in the upper and lower rims in the inner side of the said body and the concave tooth terrace shape 114 in the end side of the elongated slot holes in the end of the elongated strip-type machine body of the movable jaw constitute the function to clamp the longer upright work pieces (especially the upright pipes and rods), when said vise is provided with a rotary seat 115 which is locked on its work side, the vise can be rotated 1800, so the above-said perpendicularly clamped work piece can be extended to the floor, and therefore this is particularly applicable to the maintenance dnd processing for such kinds of pipes rods and strips.

Besides, since the table vise also has a design of the backwardly installed movable jaws as shown in Figs. 2, 2-1,2-3, in such a design, similarly clamp claws 2-3 are provided on the two sides of the movable jaws 202 and fixec -aws 201 respectively, because the movable jaws 202 themselves have screw holes to couple the guide screw 204, their pushing and stretching force-application structure characterizes that threads 205 and transverse through hole 206 are provided in the inner side to couple the guide rod 204 and the fixed body, and the positioning nut 208 joined to and sleeved on the positioning pin 207 is to beef up its strength to stand the forces thus applied thereon, as shown in Figs. 2-3 to 2-9 are various examplary forms of the same clamp claws shown in Figs. 1-3 to 1-9.

(2) As shown in Figs. 3, 3-1, 3-2, 3-3, the invention is used to the drill vise, which maily comprises: - a machine base 301, one of its end having a fixed jaw 302, two sides of sold jaw 302 having flat clamp claws 303 respectively, its middle section having a guide rail 304 and a guide slot 305 to allow the movable jaw 306 sliding therebetween, its other side having a pair of support posts 307 with a spiral hole therein respectively to receive the guide rod 308;; - a movable jaw 306 having parallel flat clamp jaws 303, its bottom having a longitudinal protrusion 309 to couple the guide rail 305 of the machine base and also having a latitudinal cutout 310 to receive a slidable annular block 311, its side that facing the support posts 307 having longitudinal through hole to receive the screw 308, and screw holes on its bottom to firmly lock the base 212; - a guide screw 308 having a handle bar 313 and a section of threads to be threaded on the threaded hole in the support posts 307, and an end section 315 of threads in a smaller diameter having a transverse through pin hole to align the longitudinal through hole in the movable jaw 306 and the screw hole in the drum-shaped nut 311 to join the annular block 311 by a pin 314;; - a drum-shaped nut 311 with a screw hole in its center to receive the 315 of the guide rod and alos with a transverse pin hole to receive the pin 314 therein to join the drum-shaped nut 311 and guide screw 308.

- a base 312 to be locked by a screw 316 on the bottom of the movable jaws 306 to avoid their slip off therefrom; The above said clamp vise cn produce clamping and fixing or stretching and pushing force by the positive and reverse rotational drive of the guide rod and also pressing of the drum-shaped nut against the movable jaws.

Figs. 3-4 to 3-10 also show various examplary forms of the same clamp claws as shown in Figs. 1-3 to 1-9.

(3) Figs. 4, 4-1, 4-2 also show the examplary forms of the invention used to the precision milling vise, which mainly compose: - a machine base 401 having a fixed jaw 402 on its one end, the fixed jaw 402 having clamp claws 403, and the middle section of said base 401 having a slide rail to allow the movable jaws 404 sliding therebetween, its other end having a support post 405 with a through hole, its two ends to be inserted into the bearing set to stop the push; - a movable jaw with a clamp claw 403 on each of its two sides respectively, structure porvided on its bottom to make slides in coupling the guide rail of the machine base without any slip offs therefrom, and a longitudinal through screw hole 407 to receive the screw 408; ; - a guide screw 408 with threads on its one end to be threaded in the threaded hole 407 in the bottom of the movable jaw, its other end to be coupled to the support post section 405 which has a transverse through hole to receive the annular block 409 on the outer side of the push-stop bearing 406 of the post 405, a positioning pin 410 (or smap ring) making the annular block 409 positioned on the guide screw 408 which in turn makes the guide screw 408 positioned and rotatable on the support post.

By the above-said structure, said milling machine clamp vise can effect the clamping, fixing and pushing stretching functions to be applied to the milling machine processing. Figs. 4-3 to 4-9 show various examplary forms of the clamp claw shown in Figs.

1-3 to 1-9.

Further, the above-said examplary forms belong to the manualdriven guide screw way. However, in practival use, the vise can also be driven by other electric-operated or hydrodynamic powered elements. Figs. 5 to 5-5 show the examplary forms of the vises driven by the electric motor. Enclosures 3 and 4 illustrate the examplary forms of the conventional oil hydraulic or pneumatic driven vises, as their drive structure can be used to the design of the present invention, no repetition in this respect is needed herein.The following are the examplary forms of the vise structure added with the electric motor dirve in this respects in which As shown in Fig. 5 to 5-2, this design features that the drive motor is mounted on the drive base 502 of the guide screw 501, and so this is an examplary form of the guide screw that displace along with the movable jaw, in which a set of drive motor 503 having a reduction gear case, a set of mutually engaged gear set 504 and pinion set 505 and a drive base 502 having an adequate spare and a join cover 506 are included, of which; - a key slot 507 is axially cut in the rod plane of said guide screw 1 to couple and align the screw hole 508 in the drive base 502, a polygonal head 509 is formed at the end of said guide screw 1 to mesh the handle bar for manual rotary movements;; - a key slot 507 is axially cut in the surface of said guide screw 1 and also couples and aligns the screw hole 508 in said drive base 502, the end of said guide screw 1 is a polygonal head 509 to mesh the handle bar for manual rotary movements; - said drive base 502 and thebsse bottom 510 are integrally cast in the same body, a screw hole 508 is provided at the position where the opposite guide screw 501 passes through and is mounted, and in the inner side of said screw hole 508 has a key hole in a proper depth for radially positioning the bearing therein, a hole seat is inwardly provided on one side of the screw hole 508 on the back to receive and position the reduction gear box of the drive motor 503 therein, and the output shaft of the reduction gear box extends forward and to the place beyond the drive base 502 to drive the pinion 55 into motion; - the front end of said drive motor 503 has a reduction gear box, during assembly, the reduction gear box or even the reduction gear box including the body of the drive motor 503 maybe laid into the key hole in the drive base 502, the transverse protruding plate protruding from the reduction gera box leans against the drive base 502, and then fixing pieces each the protroding plate;; - gear set and pinion set 505 are the intermediate madia to transmit the power of said drive motor 503 to said guide screw 501, of which said pinion 505 is mounted on the output shaft of the reduction gear box, while said gear 504 is sleeved on said guide screw 501 to engge said pinion 505, said gear 504 drives, with its key 511, said guide screw 501 passing there through into motion;; - the join cover 506 is made, in coordination with the configuration os said drive base 502, in such a manner that its middle part warps upward and its two sides extend to closely learn against said drive base 502, and the wing plates on its two sides are bolted and locked by the screw 512 on the base seat 510 as its feature, before said join cover 506 is positioned, firstly according to the installation of said gear 504 and pinion 505 since said pinion 505 is mounted on the output shaft of the reduction gear box and said gear SL ço through and is also sleeved on said guide screw 501, two radial bearings are simultaneously and succesively mounted on the two sides of said gear 504 to make various transmission elements precisely positioned, besides, further a protruding shaft 513 having a square stock is provided on the back of said drive motor for manually operating the handle bar to drive them; - said movable jaw 518 and fixed jaw 519 respectively have their two-directional clamp claws 520, 521, the bottom of the movable jaw has a sunk cut slot 522 to receive a drum-shaped nut 515, said drum-sahped nut 515 has a transverse pin hole to mesh the threads 517 in the end of said guide screw 501 and then a pin 516 joins said movable jaw and guide screw 501, the bottom cf said movable jaw has a screw hole which is joined, by a screw 524, to the bottom plate 523, the traction of above-said nut drives the movable jaw into motlon to effect the two-directional clamping actions.

Figs. 5-3 to 5-5 show another examplary form of the said twodirectional clamping vise driven by an electric motor, in which the bottom of said movable jaw has a couping nut which will effect in conjunction with said guide screw, the rotary drive but does not displace with said movable jaw in said drawing: - one side of said base 551 is provided with a fixed jaw 552 having the two-directional clamp claws 553, 554 and a guide rail 555 to allcw said movable jaw 558 with said two-directional clamp claws 556. 557 sliding thereon; - the other side of said base 551 is provided with a support post 559 and a motor base 560 to join the motor 561 having a reduction device thereon; said support post 559 has a middle section with its two sides having a larger diameter and a through hole 562 in a smaller diameter; and the thrust-stop nearings 563, 564 are respectively inserted into its two sides; one end of said guide screw 565 has a square stock 666 to couple the operating handle bar and a section of threads 567 which can extend to the two sides of the bearings and two pin holes to receive a positioning nut 570 having a pin hole, where a pin 568 joins them, and , the gear 571 having pin hole terrace flange in the inner side for spirally meshing thereon, and a pin 569 joins them; - another end of said guide screw has guide travel threads to couple the inner threads 572 on the bottom of the movable jaw to drive the movable jaw into motion;; - the output shaft of the motor 561 joins a gear 573 which couples the above-said gear 571 having the pin hole terrace flange, and the motor drives the guide screw into motion which in turn drives the movable jaw moving to effect the normal functions.

The above-said electric-operated clamp vise is controlled by a switch to make the drive motor use the reduction gear box to drive said pinion into motion and the gear to drive the guide screw by the key, therby achieving the rapid feed and backward movements said stop control on the feed and backward movement can further achieve the objects by the preset touch switch or the selected governable motor (if the difference between the load and the governable current is smaller, and a series excited motor with larger magnetic field windings for overheat protection), or the resettable electric power supply to drive the DC or AC motor for drive, therefore, the main components of the above-said power driven two-directional clamp vise are described as follows:: movable jaw and fixed jaw respectively provided with the two directional clamp claws; - a truction structure between the drive structure and the movable jaw can bear the strong two-directional strength of the clamping and pressing and stretching and pushing forces; - the drive structure includes oil hydraulic cylinder or electric or hydrodymac-driven types.

Besides, the above-said various kinds of the two-directional drive jaw can further be in the forms as shown in Figs. 5-6, 5-7, its upper side and left and right sides respectively have the outwardly and gradually reduced terrace shape from the opposite clmaping faces to facilitate the pushes and stretches of work pieces in various sizes, additionally, the clamping or pushing or stretching faces of the clamp claws of said two-directional to clamp jaw shown in Figs. 1 to 5-7 can be added with the softer or harder clamp plates, or one or both of these plates are directly constructed by the jaw body itself.

Summing the above -up this design has a mechanism to apply twodirectional forces on the guide rod for driving and the movable jaw and fixed jaw respectively having the two-directional clamp claws to accept the drive by the manual-operated or electric motor-operated or oil hydraulic or pneumatic-powered elements and, therefore, also to effect the functions to clamp, press the work piece or strtch and push outward, and its reverse extensional force can truct the tooth hole in the perpendicular direction and in the end of the machine body of the movable jaw and the inner concave terrace shapes formed on the upper and lower rims of the inner guide hole in the fixed jaw, thereby effecting the opposite clamp to rotatably move the body of the clamp vise which in turn perpendicularly clamps work pieces live longer pipes or rods which may entend to the floor and also, under the drive of the electric motor, to conduct the electrically powered twodirectional clamp so as to maximize the usage functions in mass productions. As the above-said improvements have lower costs and very useful effects, it is, indeed, much better than those described in the previous patent cases, and therefore it is sincerely appreciated you would examine this application according to the related laws.

Claims

CLAIMS:

1. An improved vise is mainly further provided the clamp claws on the outer sides of the movable jaws and fixed jaws of the vise and the traction structure between the drive structure and movable jaw is designed into a two-directional tractable structure; while the support posts that the clamp vise body uses to support the drive elements and the drive elements also respectively have their own two-directional force-bearing join structure to effect strong clamping or stretching and pushing action.

2. The improved vise of claim 1 comprises the structural form of a table vise composed of: - a body having fixed jaws with two-directional clamp claws, said body also having a longitudinal guide hole to receive the machine body of movable jaws, the lower part of said body serving as a base to be fixed on a work bench or to be joined to a bottom for angular rotary adjustments, a concave slot in its inner part to couple a the shaft of a guide rod; - a movable jaw with clamp claws on its two sides, its elongated strip-type machine body to couple the longitudinal hole in said body, thereby accepting the drive of the guide rod to recipro catively slide therebetween, a round hole in the front end of said machine body to receive the guide screw;; - a drive guide rod passing through the round hole in the front end of the machine body of the movable jaw, a thread on its section passing through said round hole to screw on a positioning nut, a through hole provided in said positioning nut and guide rod respectively to receive a positioning cotter pin; - a set of shaft having an inner screw hole to receive the longitudinal concave slot.

By the above-said vise structure, we can use the positive and reverse rotations of the guide rod to drive the movable jaw which in turn clamps, fix push, stretch a work piece.

The improved vise of claim 1 comprises the table vise design of the rear mounted movable jaw composed of: - movable jaw and fixed jaw respectively with clamp claws on their two sides, and screw holes in the movable jaw itself to couple the guide screw; - a pushing and stretching force-application structure, and threads and transverse through holes provided in the inner sides of the said structure which couples the guide rod and fixed body, the positioning pin to join the positioning nut screwed thereon to be jncease its force-bearing strength.

4. Further improvements on the table vise of claims 2 and 3 comprise: - a drive screw and a movable jaw, which can bear forces in two directions; - the concave tooth-type terrace shapes provided on the upper and lower rims of-the inner side (not the handle bar side of the guide rod), and an elongated slot hole provided in the end section of the elongated strip-type machine body of the movable jaw, a concave tooth-type terrace shape also formed on the upper side of the near end of the elongated slot hole, so when the screw is driven reversely, the concave tooth-type terrace shape wormed on the upper and lower rims in the inner side of the above-said body and the concave tooth-type terrace shape on the end side of the elongated slot hole in the upper side of the end of the elongated strip-type machine body of the movable jaw constitute the function to clamp an upright work piece (particularly an upright pipe or rod); - said vise provided with a rotary base and also firmly locked.

when on the work side, said vise can be rotated 1800, then said upright work piece may extend to the floor.

5. The upright clamping structure of claim 4 comprises the table vise applied to the conventional ways.

6. Improvements on vises of claim 1 comprises the drill vise mainly composed of: - a machine base, one end of which having a fixed jaw, a flat clamp claw provided on each of the two sides of the jaw respectively, a guide rail and a guide on its middle section to allow the movable jaw sliding therebetween, a support post on its other side, a spiral hole in said support post to receive the guide rod rotatably passing therethrough; - a movable jaw with a flat claw on each its two sides respec tively, a longtitudinal protrusion on its bottom to couple the guide slot in the machine base and a transverse cutout also on its bottom to receive a movable annular block, a longitudinal through hole in its side that faces the support post to receive the screw, and screw holes in its bottom to lock and secure the base;; - a guide screw having a handle bar and a section of threads to engage the screw hle in the support post, and a smaller parallel end section having a transverse through pin hole to align the longitudinal through hole in the movable jaw and the hole in the slidable annular block and then to the join the annular block by a pin; - the middle section of the slidable annular block having a hole to receive the guide rod end and a transverse pin hole to join the slidable slidable annular block and the pin of the guide rod; - a base to be locked by screws to the bottom of the movable jaws to avoid the slip-offs of the said jaw therefrom.

By the positive and reverse rotational drives of the guide rod, the above-said clamp vise can make the slidable annular block press the movable jaw, thereby effecting the clamping, fixing, or pushing, stretching forces.

7. The improved vise of claim 1 includes the vise applied to the precision milling machine, wherein its structure comprises: - a machine base with a fixed jaw on its one end, a clamp claw provided on each of the two ends of the fixing jaws respectively, a Elite rail on its middle section to allow the movable jaw sliding therebetween, a support post on its other end, a through hole in said support post, a pushing stop bearing lset to be inserted into its two sides; - a movable jaw witha clamp claw on each of its two sides, its bottom having a structure to slide on the rail of machine base in coupled manner without any slip-off therefrom, a longitudinal through screw hole to receive the guide screw therein;; - a guide screw with spirals on its one end to screw and engage the screw hole in the bottom of the movable jaw, a trans verse through hole in the section of its other end that couples the support post to receive the annular blocks in the outer side of the pushing stop bearing of said support post, a pin (or snap ring) to make two annular blocks positioned on the guide screw, thereby making the guide screw positioned and rotatable on said support post.

By the above-said structure, said milling machine vise can effect the clamping, fixing and pushing, stretching functions on the milling machine processing.

8. The vise structure of claims 1-7 comprises the vises using the manually driven gudie screw or other electrical power or fluid power driven elements for driving, and their structure are described as follows: - a movable jaw and a fixed jaw respectively with a two directional clamping claw; - a strong traction structure between the drive structure and the movable jaw which can bear the clamping, pressing and pushing, stretching forces in two directions; - a strpng force-bearing structure that the drive structure and the support post have to stand the clamping, pressing and stretching, pushing forces in two directions; - a drive structure composed of the hydraulic cylinder or electric power or fluid driven or manually driven ones.

9. The two-directional clamp vise of claims 1) to 8), wherein its further feature is that it is electric motor driven, its drive motor is provided on the drive base, and the said guide screw displaces along with said movable jaw, in which include of the drive motor set with the reduction gear case, a set of mutually coupled gear set and pinion set, a drive base provided with a proper space, and a join cover, in which:: - a key slot is axially cut in the face of said guide screw and couples and aligns the screw hole in said drive base, the end of said guide screw has a polygonal head to mesh the handle bar for manual rotary actions, - said drive base and base seat are integrally cast in a single unit, a screw hole is provided in a position that its opposite guide screw passes through and is mounted, a slot hole with a proper depth is provided in the inner side of said screw hle to axially position the bearing, one side of the screw hole in its back is inwardly provided with a hole seat to receive and position the reduction gear of said drive motor, and the output shaft of reduction gear case extends forward to a place beyond said drive base to drive the pinion into motion;; - the front end of said drive motor has a reduction gear box, during assembly, said reduction gear box or said reduction gear box including said drive motor body maybe inserted into the slot hole in said drive a base, the transverse protruding plaste protruding from said reduction gear box closely learns against said drive base, and a fixing piece locks them; - the gear and pinion sts are the intermediate media to transmit the power of said drive motor to said gudie screw, of which said pinion - minted on the output shaft of said reduction gear case, while the gear is sleeved on said guide screw to engage the said piston, and the dey of said gear drives said sleeved guide screw into motion;; - the join cover is made, in coordination with the configuration of said drive base, into the shape that its middle part warps upward and its two sides extend to closely lean against said drive base, and its two side wing plates are bolted and locked, with a screw, on the base as its feature, before the join cover is positioned, firstly according to the installation state of said gear and pinion, two radial bearings are simul taneously and successively mounted on the two sides of said gear to make various transmission elements precisely positioned, further, a protruding shaft with a square stock maybe provided on the back of said drive motor for manually operating the handle bar to drive them;; - said movable jaw and fixed jaw respectively have their two directional clamp claws, the bottom of said movable jaw has a sunk cut slot 522 to receive a drum-shaped nut which has a transverse pin hole to mesh the threads in the end of said guide screw, and then a pin joins them, the bottom of said movable jaw has a screw hole which is joined by a screw to the bottom, said nut drives said movable jaw into motion to effect the two-directional clamping actions.

10. The two-directional clamping vise of claims 1) to 8), wherein its another way of using the electric motor drive includes that the bottom of said movable jaw has a coupling nut which uses the guide screw for the rotary drive but does not displace with said movable jaw as its feature; in which:: - one side of said base is provided with a fixed claw having the two-directional clamp claws and a guide rail to allow said movable jaw sliding thereon; - the other side of said base is provided with a support post and a motor base to join the motor having a reduction device thereon; - said support post has a middle section with its two sides having a larger diameter and a through hole in a smaller diameter, the thrust-stop bearings are respectively inserted into its two sides;; - one end of said guide screw has a square stock to couple the operating handle bar and a section of threads which can extend to the two sides of the bearings and two pin holes to receive a positioning nut having a pin hole, where a pin joins then, ad the gear having a pin hole terrace flange in the inner side for spirally meshing thereon, and r; joins them; - another end of said guide screw has guide travel threads to couple the inner threads on the bottom of said movable join into motion; the output shaft of the motor joins a gear which couples the above-said gear having the pin hole terrace flange, and the motor drives the guide screw into motion which in turn drives the movable jaw moving to effect the normal functions.

11. The electric-operated clamp vise of claims 9), 10), wherein said vise maybe controlled by a switch to make the drive motor use the reduction gear box to drive the pinion into motion and the gear to drive the said guide screw by the key, thereby achieving the rapid feed and backward movements, said stop control can further achieve to objects by the preset touch switch or the selected governable motor (if the difference between the JoGd and the governable current is smaller and a series excited motor with larger magnetic field windings for overheat protection), or the resettable electric power supply to drive the AC or DC motor for drive.

12. The clamp vise structure of claims 1) to 10), wherein its further feature lies in that the upper side and the left and right sides of its clamp jaw have a terrace-shaped structure respectively which gradually and outwardly reduces from the clamping faces.

13. The clamp claw of claims 1) to 10) can be integrally formed with the jaw body into a single unit or added with softer and/or harder clamp plates.