JP4416447B2 - Vice - Google Patents

Description

  The present invention relates to a vise, and more particularly, to an improvement in the structure of a vice that can prevent chips (chips) generated during operations such as cutting from entering the inside of the apparatus.

  Conventionally, when processing a relatively small article (workpiece), a vise (vise device) has been used as a device for clamping and fixing the work piece. Yes. And as is well known, there are various types of vise, and the shape and size of the workpiece to be fixed, or the workpiece is used for machining. Depending on the type of machine tool and the like, an appropriate structure is appropriately selected and used.

  By the way, as one type of such vice, two guide rails extending in parallel to each other along a longitudinal direction of the apparatus main body are provided in a long apparatus main body (base) with a predetermined gap therebetween. A fixed jaw is provided at one end of the main body of the apparatus, which is one end in the extending direction of the guide rail, while a movable jaw guided by the two guide rails is arranged across the two guide rails. There is a structure of being made. In such a vise, usually, a spindle is disposed in the gap between the two guide rails, and by rotating the spindle, the screw mechanism provided between the movable jaw is used. Although the movable jaw can be moved toward and away from the fixed jaw, such a spindle arrangement structure has a problem that a malfunction may occur.

  That is, in the conventional vise as described above, since the gap between the two guide rails is opened to the outside, the surface of the spindle disposed in such a gap passes through the opening of the gap. It will be exposed to the outside. Therefore, for example, when a workpiece is clamped using such a vise, and cutting or the like is performed on the clamped workpiece, chips generated by such cutting are guided by two guides. It penetrates into the gap of the rail and adheres to the surface where the male screw of the spindle located in the gap is engraved, the screw mechanism, or the sliding part of the movable jaw in the gap with respect to the two guide rails. There was a fear that the operability would be deteriorated because the rotation of the spindle and the movement of the movable jaw due to this were obstructed by the biting.

Therefore, the applicant of the present application has previously proposed a vise provided with a cover that can cover the gap between the two guide rails (see, for example, Patent Document 1). In this vice, the cover that can cover the gap between the two guide rails can be taken out with respect to the opposite side of the fixed jaw with the movable jaw between the two guide rails or to the movable jaw. A cover housing mechanism for housing is provided, and the cover housing mechanism is provided with winding means for urging the cover in the winding direction. Then, the end of the cover on the take-out side is fixed to the movable jaw or the opposite side of the fixed jaw with the movable jaw sandwiched between the two guide rails so that the movable jaw approaches the fixed jaw. At the time of movement, the cover is removed from the cover accommodation mechanism while being urged in the winding direction.

  Thus, in this vise, when the movable jaw moves, the two jaws between the movable jaw and the opposite side of the fixed jaw sandwiching the movable jaw between the two guide rails, regardless of the movement position. The gap between the guide rails is covered with a cover taken out from the cover accommodation mechanism. As a result, chips generated during the cutting process on the workpiece clamped between the movable jaw and the fixed jaw are fixed by sandwiching the movable jaw and the movable jaw between the two guide rails. Intrusion into the gap between the two guide rails between the opposite side of the jaws can be eliminated, resulting from sticking of chips to the surface of the spindle located in the gap, biting, etc. The occurrence of malfunctions that occur is advantageously prevented.

  However, in this conventional vise, only the portion of the gap between the two guide rails that is located between the opposite side of the fixed jaw sandwiching the movable jaw between the two guide rails and the movable jaw is covered. Since the gap portion between the movable jaw and the fixed jaw which are positioned corresponding to the workpiece is still open to the outside, It was impossible to prevent chips from entering the gap between the two guide rails between the movable jaw and the fixed jaw, and there was room for improvement in that respect.

The applicant of the present application has previously proposed a technique for improving the above-described problems (see, for example, Patent Document 2). That is, in this vise, the movable jaw is opened below the base of the movable jaw, and the movable jaw is extended upward with a convex shape, opposite to the base of the movable jaw. A cover passage opening behind the side is provided. In addition, in a state where the belt-shaped flexible cover having a predetermined length and having a width capable of covering the gap between the two guide rails is positioned in the gap, at both ends in the length direction, The fixed jaw is fixed to the end portion on the side opposite to the side where the fixed jaw is disposed, and is disposed through the cover passage at the intermediate portion in the longitudinal direction, and is disposed through the cover passage. The flexible cover can be slid in the cover passage according to the movement of the movable jaw. As a result, in such a vice, the movement of the movable jaw is not hindered, and the gap between the two guide rails is covered with the flexible cover over the entire length regardless of the movement position of the movable jaw. Therefore, in the gap between the two guide rails, the gap between the two guide rails is fixed to the portion between the movable jaw and the opposite side of the fixed jaw sandwiching the movable jaw. Not only the penetration of chips, but also the entry of chips into the part between the movable jaw and the fixed jaw can be advantageously prevented.
No. 4-5257 Utility Model Registration Gazette No. 2570293

  Here, the present invention has been completed in the background as described above, and is different from the previously proposed improved technique for preventing chips from entering the gap between the two guide rails. The problem to be solved is that the entry of chips into the gap between the two guide rails between the movable jaw and the fixed jaw can be reliably prevented, and the operability is It is to provide a vise that can be better maintained.

And in this invention, in order to solve this subject, as the 1st aspect, it is the state extended in parallel mutually mutually along the longitudinal direction of this longitudinal base, and the predetermined gap. Two guide rails provided on the base, a fixed portion provided at a fixed position on one end side in the longitudinal direction of the base, and guided by the two guide rails to approach the fixed portion In a vise that includes a movable part that can be moved in a separable manner, and a predetermined article is clamped and fixed between the movable part and the fixed part by the movement of the movable part, the longitudinal direction of the base A belt-shaped first having a width and a predetermined length that can cover the gap between the two guide rails on the opposite side of the movable portion with the fixed portion interposed therebetween or on the fixed portion. Winding cover In addition to arrangement, provided a first extraction mechanism for extracting meta state Shi was urging said first cover in the winding direction, further, the end portion of the take out side of the first cover By fixing the movable part to the movable part and moving the movable part away from the fixed part, the first cover is taken out of the winding state, so that the movable part is fixed between the movable part and the fixed part. The gap between the two guide rails is configured so as to be covered with a first cover taken out from the winding state, while the fixed part side sandwiching the movable part in the base is A belt-like second cover having a predetermined width and a width that can cover the gap between the two guide rails is disposed at the opposite end or on the movable portion, and the second cover is wound. To remove the cover with the cover biased in the winding direction A second take-out mechanism is provided, and the end on the take-out side of the second cover is fixed to the movable part or the end opposite to the fixed part with the movable part in the base interposed therebetween. At least, the second cover is taken out from the winding state as the movable part approaches the fixed part, so that the movable part in the base is sandwiched between the fixed part side and Is configured such that the gap between the two guide rails between the opposite end and the movable part can be covered with a second cover taken out from the winding state. With the movement of the movable portion in the longitudinal direction of the base, one of the first and second covers is taken out and the other is taken up simultaneously, and the two parts opened before and after the movable portion move in the moving direction. The gap between the two guide rails is reduced by the first and second covers. The gist of the vice is characterized in that each cover is covered .

  Further, according to the second aspect of the vice according to the present invention, the first cover is accommodated and disposed in a winding state inside the fixed portion, and the first take-out mechanism is provided. Will be.

Still further, according to a third aspect of the vice according to the present invention, the first cover is configured to have a width greater than the width of the gap between the two guide rails, while the two guide rails are A first guide groove extending in the moving direction of the movable part is provided on each of the mutually facing inner side surfaces of the first cover, and the first cover is removed from the wound state. Both side end portions in the width direction are configured to enter the first guide groove and be guided by the first guide groove.

Also, according to the fourth aspect of the vice according to the present invention, the second cover is configured to have a width larger than the width of the gap between the two guide rails, while the two guide rails Each of the inner surfaces facing each other is provided with a second guide groove extending in the moving direction of the movable part, and in a state where the second cover is taken out from the winding state, Both end portions in the width direction are configured to enter the second guide grooves and be guided by the second guide grooves.

  That is, in the first aspect of the vice according to the present invention described above, when the movable portion is moved away from the fixed portion, the gap between the two guide rails between the movable portion and the fixed portion is the first. The cover is covered with the first cover taken out from the winding state by the take-out mechanism, and when the movable part moves closer to the fixed part, the first cover is moved in the winding direction. Based on the urging force, it is wound up by an amount corresponding to the amount of movement of the movable part.

  Therefore, in such a vise, regardless of the moving position of the movable part, the gap between the two guide rails between the movable part and the fixed part is always in the first cover taken out from the winding state. It may be covered so that chips generated when performing a cutting operation on the workpiece clamped between the movable portion and the fixed portion enter into a gap corresponding to the workpiece. Can be advantageously eliminated.

  Therefore, in the vise according to the present invention, the spindle disposed in the portion of the gap between the two guide rails that corresponds to the workpiece clamped between the movable portion and the fixed portion. Occurrence of malfunctions due to adhesion of chips or biting on the sliding surface of the two guide rails of the movable part in the gap or the screw mechanism part can be effectively prevented. As a result, good operability can be maintained more stably.

  In addition, in such a vise, since the belt-shaped first cover having a predetermined length is disposed in a winding state at the fixed portion or at a predetermined portion of the base, the first cover is, for example, Unlike the case where the first cover is disposed in a stretched state, an increase in the size of the fixing portion and the base and the increase in the size of the entire apparatus associated with the arrangement of the first cover can be prevented extremely effectively.

  Further, in the second aspect of the vice according to the present invention, since the first cover and the first take-out mechanism are provided inside the fixed portion, for example, the first cover and the first cover Compared to the case where the take-out mechanism is provided on the outer surface of the fixed part, the outer surface of the base, etc., the increase in the size of the entire apparatus due to the arrangement of the first cover and the first take-out mechanism is extremely effectively prevented. Can be done.

  In addition, in such a vise, the first cover and the first take-out mechanism are provided inside the fixed part, so that there is no extra protrusion on the outer surface of the fixed part or the base. Since the first cover and the first take-out mechanism are not provided, for example, the end surface or the side surface on the fixed portion side in the longitudinal direction of the base cannot be used as a reference surface when the vise is installed. Such an advantage can be advantageously avoided.

In the first aspect of the vice according to the present invention described above , when the movable part is moved closer to the fixed part, the base is movable on the opposite side of the fixed part with the movable part interposed therebetween. The gap between the two guide rails between the movable part and the part is covered with the second cover taken out from the winding state, and when the movable part is moved away from the fixed part, The cover is wound up by an amount corresponding to the amount of movement of the movable part based on the urging force in the winding direction.

  Therefore, in the vice according to the present invention, the gap between the two guide rails between the movable part and the fixed part is covered with the first cover regardless of the moving position of the movable part. The gap between the two guide rails between the movable portion of the base opposite to the fixed portion sandwiching the movable portion and the movable portion can also be covered with the second cover, thereby the two guide rails. Intrusion of chips into the gap can be prevented in a wider gap area. As a result, the occurrence of malfunction due to the intrusion of chips into the gap between the two guide rails can be further effectively prevented, and better operability can be exhibited. Become.

  Further, in such a vise, since the belt-like second cover having a predetermined length is disposed in a wound state, it is advantageous to increase the size of the entire apparatus accompanying the arrangement of the second cover. Can be prevented.

Further, in the third aspect of the vice according to the present invention, both end portions in the width direction of the first cover enter the first guide grooves respectively provided on the inner surfaces facing each other of the two guide rails. Since the first guide groove is guided, it is advantageously avoided that a gap is formed between both side edges of the first cover in the width direction and the inner surface of each guide rail. Thus, it is possible to effectively prevent the chips from entering into the gap, and thereby the intrusion of the chips into the gap between the two guide rails between the movable part and the fixed part, It can be prevented even more effectively.

Furthermore, in the fourth aspect of the vice according to the present invention, both end portions in the width direction of the second cover enter the second guide grooves provided on the inner side surfaces of the respective guide rails. Since it is designed to be guided by the second guide groove, a gap is formed between the side edges of the second cover in the width direction and the inner surface of each guide rail so that chips can enter. It can be advantageously avoided, whereby chips in the gap between the two guide rails between the movable part and the fixed part opposite to the fixed part sandwiching the movable part between the two guide rails Can be prevented even more effectively.

  Hereinafter, in order to clarify the present invention more specifically, the configuration of a vice according to the present invention will be described in detail with reference to the drawings.

  First, in FIG. 1 and FIG. 2, a horizontal type vice as an embodiment of a vice according to the present invention is schematically shown in an upper surface form and a longitudinal cross-sectional form. In these figures, reference numeral 10 denotes a base having a longitudinal shape in the horizontal direction, and two guide rails 14 extending in parallel with each other along the longitudinal direction of the base 10 with a predetermined gap 12 therebetween at an upper portion thereof. , 14 are integrally formed. In addition, a fixed jaw 16 having a block shape is provided at one end in the longitudinal direction of the base 10 which is one end in the extending direction of the two guide rails 14 and 14, and is further fixed to two positions. A movable jaw 18 is disposed on the guide rails 14 and 14 so as to face the fixed jaw 12 in a state of straddling the two guide rails 14 and 14.

  In the gap 12 provided between the two guide rails 14 and 14 on which the fixed jaw 16 and the movable jaw 18 are installed on the upper surface, a long spindle 22 having a male screw portion 20 formed on the outer peripheral surface is provided. In a state where the two guide rails 14 and 14 are arranged so as to extend in the extending direction, they are supported so as to be immovable and rotatable with respect to the base 10. In addition, a thick-walled cylindrical female screw member 26 having an internal thread portion 24 formed on the inner peripheral surface of the spindle 22 is extrapolated in a non-rotatable manner with the female screw portion 24 screwed to the male screw portion 20. ing. The female screw member 26 is integrally assembled with the movable jaw 18 so as to be integrally movable with a known structure. That is, here, the movable jaw 18 and the female screw member 26 are integrally assembled through a levitation preventing mechanism having a structure as described in, for example, Japanese Patent Publication No. 63-41711. As will be described later, the movable jaw 18 can be prevented from being lifted while the workpiece is clamped between the movable jaw 18 and the fixed jaw 16.

Thus, when the spindle 22 is rotated by a handle or the like (not shown), the movable jaw 18 slides on the two guide rails 14 and 14 together with the female screw member 26 according to the rotation direction of the spindle 22. While being guided by the guide rails 14, 14, the fixed jaw 16 can be moved toward and away from the fixed jaw 16 . Further, on the opposing surfaces of the fixed jaw 16 and the movable jaw 18, caps 28 and 30 made of thick rectangular plates are respectively bolted, and the movable jaw 18 moves closer to the fixed jaw 16. Thus, a predetermined workpiece (not shown) is clamped and fixed between the clamp surfaces 32 and 34 of the two caps 28 and 30. As is clear from this, in the present embodiment, the fixed jaw 16 constitutes a fixed portion, and the movable jaw 18 and the female screw member 26 constitute a movable portion.

  By the way, in the vice of the present embodiment having such a structure, a special structure for covering the gap 12 formed between the two guide rails 14 is provided. In order to facilitate understanding of the cover structure of the gap 12, the longitudinal direction of the base 10, that is, the extending direction of the two guide rails 14, 14 (from FIG. 1 and FIG. Direction), the arrangement side (left side in FIGS. 1 and 2) of the fixed jaw 16 in the extending direction is the front side, and the arrangement side of the movable jaw 18 (right side in FIGS. 1 and 2). Is referred to as the rear side.

  That is, here, as shown in FIGS. 1 to 3, the corners are notched in an L shape with respect to the upper corners of the inner surfaces of the two guide rails 14 and 14 facing each other. In other words, the notch grooves 40, 40 as the second guide grooves formed by providing stepped portions having an L-shaped cross section at the upper corners are movable jaws over the entire length of each guide rail 14. It is formed so as to extend in a straight line and continuously in the front-rear direction as the 18 movement directions. Further, on the inner side surface of each guide rail 14, a concave groove as a first guide groove having the same depth and width as the notch groove 40 also at a position corresponding to each other in the lower part of the formation part of the notch groove 40. 42 are formed so as to extend horizontally in a straight line continuously in the front-rear direction as the moving direction of the movable jaw 18 over the entire length of each guide rail 14.

  Furthermore, in the vise of the present embodiment, as is apparent from FIGS. 2 to 4, the opening peripheral edge portion that opens on the front surface opposite to the movable jaw 18 side with respect to the fixed jaw 16 is a shallow step. A rectangular recess 44 having a width larger than the width of the gap 12 between the two guide rails 14, 14 is provided. The distance between the bottom surface of each of the notch grooves 40 and 40 and the concave grooves 42 and 42 is substantially the same between the formation portion of the recess 44 and the attachment portion of the base 28 in the lower portion of the fixed jaw 16. A rectangular hole-like cover passage 46 extending in the front-rear direction with a width of a size is formed so as to open in the recess 44 and in the gap 12 between the two guide rails 14, 14. The point 44 is communicated with the gap 12 between the two guide rails 14 and 14 through the cover passage 46.

  In the recess 44, a first cover storage body 48 is disposed. The first cover storage body 48 is formed of a rectangular housing having an outer surface shape corresponding to the inner surface shape of the recess 44, and an outer flange 50 is integrally formed on the peripheral edge portion of the opening, while the bottom portion has A rectangular through hole 52 corresponding to the shape of the cover passage 46 is provided, and at the center of the inside thereof, a horizontal direction (in FIG. 2, a direction perpendicular to the paper surface and a horizontal direction in FIG. 4). A winding shaft 54 extending across two side wall portions facing each other is attached so as to be rotatable around an axis. The first cover storage body 48 is a screw member disposed through the outer flange 50 in a state where the outer flange 50 is positioned so as to fit into the stepped portion of the opening peripheral edge of the recess 44. Thus, the fixing jaw 16 is screwed and fixed.

  In addition, a first cover 56 is housed inside the first cover housing body 48. The first cover 56 is longer than the guide rail 14 by a predetermined length and larger than the width of the gap 12 between the two guide rails 14, 14, and the concave grooves 42, 42 in the two guide rails 14, 14. The spiral spring is made of a spring steel plate having a width smaller than a distance between the opposing bottom surfaces and a thickness smaller than the groove width of the concave groove 42. The inner end portion of the first cover 56 is fixed to the outer peripheral surface of the take-up shaft 54 provided inside the first cover storage body 48, thereby the first cover 56. However, it is wound around the winding shaft 54 and housed in the fixed jaw 16 in a state of being housed in the first cover housing body 48.

Further, in the first cover 56, the outer end side portion opposite to the side fixed to the take-up shaft 54 is the through hole 52 of the first cover storage body 48 and the first cover passage 46. And is extended from the inside of the fixed jaw 16 into the gap 12 between the two guide rails 14, 14, and is provided on each inner side surface of the two guide rails 14, 14 in the gap 12. The both side end portions in the width direction are positioned in the recessed grooves 42 and 42 formed. Then, the outer end side portion is attached to the mounting projection 58 protruding from the upper outer surface of the cylindrical wall portion of the female screw member 26 that is moved integrally with the movable jaw 18 at the end portion by a rivet or the like. It is fixed.

  Thus, in the vise of the present embodiment, the first cover 56 is moved by the length corresponding to the amount of movement of the movable jaw 18 as the movable jaw 18 moves away from the fixed jaw 16. The first cover housing 48 is gradually taken out from the fixed jaw 16 into the gap 12 between the two guide rails 14, 14 through the through hole 52 and the first cover passage 46, and this first cover The 56 extraction portions 60 can be expanded while being guided by the concave grooves 42 and 42 in the gap 12 with both end portions in the width direction entering the concave grooves 42 and 42. It has become. As a result, the upper opening of the portion located between the fixed jaw 16 and the movable jaw 18 in the gap 12 between the two guide rails 14, 14 is accommodated in a wound state. The first cover 56 is taken out from the inside and spread out, and is covered with a take-out portion 60 of the first cover 56.

  In addition, here, the first cover 56 is constituted by a spiral spring, and the inner end portion of the first cover 56 is fixed to a take-up shaft 54 that is rotatable around an axis. Therefore, the take-out portion 60 of the first cover 56 taken out from the fixed jaw 16 and expanded is urged in the take-up direction based on the restoring force of the spiral spring.

  Therefore, as described above, the movable jaw 18 is positioned away from the fixed jaw 16, and the first cover 56 is taken out from the fixed jaw 16 by a length corresponding to the distance of movement of the movable jaw 18. When the movable jaw 18 is moved toward and away from the fixed jaw 16 from the above-mentioned state, the take-out portion 60 of the first cover 56 taken out from the fixed jaw 16 and spread out is moved in the winding direction. As a result of the urging force, the cover jaw 46 and the through hole 52 are passed through the cover passage 46 and the through-hole 52 by the length corresponding to the approaching movement amount of the movable jaw 18 and gradually wound into the first cover storage body 48. It is designed to be stored.

  Thus, even when the movable jaw 18 moves closer to the fixed jaw 16, the opening above the gap 12 between the two guide rails 14, 14 between the fixed jaw 16 and the movable jaw 18 is formed in the fixed jaw 16. The cover is covered with the take-out portion 60 of the first cover 56 that has been taken out of the cover and is still being extended. As is clear from this, here, the first cover storage body 48, the winding shaft 54, and the cover passage 46 constitute a first extraction mechanism.

  In the vise of the present embodiment, as shown in FIG. 2, the second cover storage body 62 is disposed at the rear portion of the movable jaw 18 opposite to the fixed jaw 16 side. The second cover storage body 62 is also formed of a rectangular casing having a width larger than the width of the gap 12 between the two guide rails 14 and 14, and is screwed to the rear surface of the movable jaw 18 at the bottom. Thus, the movable jaw 18 is attached to the movable jaw 18 so as to be movable integrally with the movable jaw 18 in a state of being opened rearward.

  Further, in the second cover storage body 62, the take-up shaft 64 that extends across two side wall portions facing in the left-right direction (the direction perpendicular to the paper surface in FIG. 2) at the center of the second cover storage body 62. However, a tension roller 66 is provided below the winding shaft 64 so as to be rotatable about an axis extending in the left-right direction. The tension roller 66 is installed such that the roller surface located at the lowest position is positioned at the same height as the upper surfaces of the two guide rails 14 and 14.

  A second cover 68 made of a spiral spring made of the same material as that of the first cover 56 is also housed inside the second cover housing body 62. The second cover 68 is longer than the guide rail 14 by a predetermined length and larger than the width of the gap 12 between the two guide rails 14, 14, and the notched grooves 40, 40 of the two guide rails 14, 14. And a width smaller than the distance between the bottom surfaces facing each other, and a thickness smaller than the groove width of the cutout groove 40. And the inner side edge part of this 2nd cover 68 is being fixed to the outer peripheral surface of the winding shaft 64, and, thereby, the 2nd cover 68 is wound around the winding shaft 64, and the 1st The fixed jaw 16 is disposed on the opposite side of the movable jaw 18 in the state of being housed in the cover housing body 48.

  Further, in the second cover 68, the outer end side portion opposite to the side fixed to the take-up shaft 64 passes below the tension roller 66 and the second cover storage body 62. From the opening, it extends to the rear side of the movable jaw 18, so that the outer end side portion is pressed downward by the tension roller 66, and the two guide rails 14, 14 are pressed. It can be positioned at almost the same height as the top surface. The end portion of the outer end side portion of the second cover 68 is screwed to the rear end surface of the base 10 and fixed to the front end portion of the extending plate 70 extending rearward by a rivet or the like. ing.

  Thus, as the movable jaw 18 moves closer to the fixed jaw 16, the second cover 68 has a length corresponding to the amount of movement of the movable jaw 18 from the second cover storage body 62 stored in the wound state. Are gradually taken out by the same amount, and the take-out portion 72 of the second cover 68 is pressed downward by the tension roller 66 in the gap 12 between the two guide rails 14, 14. , 14 is positioned at substantially the same height as the upper surfaces of the guide rails 14, so that both end portions in the width direction are inserted into the notch grooves 40, 40 provided in the upper corners of the inner side surfaces of the respective guide rails 14. Thus, it is extended while being guided by the cutout grooves 40 and 40. As a result, the upper opening of the portion located between the rear end portion of the base 10 and the movable jaw 18 in the gap 12 between the two guide rails 14, 14 becomes the second cover housing 62. The cover is covered with a take-out portion 72 of the second cover 68 that has been taken out and spread out.

  In addition, here, the second cover 68 is formed of a spiral spring, as with the first cover 56, and has an inner end with respect to the winding shaft 64 that is rotatable about the axis. Since the second cover 68 is taken out from the second cover housing 62 and expanded, the take-out portion 72 of the second cover 68 is expanded in the take-up direction based on the restoring force of the spiral spring. It is designed to be energized.

  Therefore, as described above, the movable jaw 18 is positioned closer to the fixed jaw 16, and the second cover 68 is moved to the second cover housing body by the length corresponding to the moving amount of the movable jaw 18. When being moved away from the fixed jaw 16 from the state of being taken out from the inside of the inside 62, the taking-out portion 72 of the second cover 68 taken out from the inside of the second cover storage body 62 and spread out is wound. Due to the urging force in the take-off direction, the length of the movable jaw 18 corresponding to the distance of movement of the movable jaw 18 is gradually wound up and stored again in the second cover storage body 62.

  As a result, even when the movable jaw 18 moves away from the fixed jaw 16, the opening above the gap 12 between the two guide rails 14, 14 between the rear end portion of the base 10 and the movable jaw 18 becomes the first. It is taken out from the inside of the second storage body 62 and is covered with the take-out portion 72 of the second cover 68 that is still stretched. As is apparent from this, the second cover storage body 62 and the take-up shaft 64 constitute a second take-out mechanism here. In FIG. 2, 74 is a scraper for scraping off scraps and the like accumulated on the take-out portion 72 of the second cover 68 when the movable jaw 18 moves away from the fixed jaw 16. Is.

  As described above, in the vise according to the present embodiment, the movable jaw 18 is moved toward and away from the fixed jaw 16 regardless of the moving position of the movable jaw 18. The upper opening of the gap between the two guide rails 14 and 14 between the fixed jaw 16 and the movable jaw 18 is formed in the first cover 56 taken out from the fixed jaw 16 accommodated in the winding state. In addition to being covered with the take-out portion 60, the opening above the gap 12 between the two guide rails 14, 14 between the rear end portion of the base 10 and the movable jaw 18 is also housed in a wound state. Covered by the take-out portion 72 of the second cover 68 taken out from the second cover housing 62, the gap between the two guide rails 14, 14 extends over the entire length of the first cover 56 and the second cover. Mosquito It is adapted to be covering by over 68 Metropolitan.

  Thus, in such a vice, for example, when cutting or the like is performed on the workpiece clamped between the fixed jaw 16 and the movable jaw 18, two pieces of chips generated by such cutting are obtained. The intrusion of the two guide rails 14 and 14 into the gap 12 can be reliably prevented over the entire length of the gap 12, and the male screw portion 20 on the surface of the spindle 22 disposed in such a gap 12, The threaded portion between the male threaded portion 20 of the spindle 22 and the female threaded portion 24 of the female threaded member 26, and the sliding between the movable jaw 18 and the female threaded member 26 and the inner surfaces of the two guide rails 14, 14. It is possible to effectively eliminate the fact that chips adhere to or bite into the part or the like.

  Therefore, in the vise of this embodiment as described above, the gap between the two guide rails 14 and 14 of chips generated by cutting or the like on the workpiece clamped between the fixed jaw 16 and the movable jaw 18. As a result, it is possible to effectively prevent a malfunction in which the rotation of the spindle 22 and the movement of the movable jaw 18 are hindered due to the intrusion into the shaft 12. As a result, good operability can be achieved. Therefore, it can be maintained more stably.

  Further, in this vise, a first cover 56 and a second cover 68 that are longer than the guide rail 14 by a predetermined dimension are respectively disposed in the fixed jaw 16 and the rear end of the base 10. For example, the first and second covers 56 and 68 are spread out from the state in which both the cover storage body 48 and the second cover storage body 62 are stored in the wound state. Unlike the case where the first cover 56 and the second cover 68 are provided, the fixed jaw 16 and the base 10 are not enlarged and the overall size of the vice is prevented very effectively. Can be done.

  Moreover, in the present embodiment, the first cover storage body 48 that stores the first cover 56 is disposed in the recess 44 provided in the fixed jaw 16 and is stored inside the fixed jaw 16. Therefore, the increase in size of the fixed jaw 16 and the vise as a result of the arrangement of the first cover 56 and the first cover housing 48 can be avoided more effectively.

  Further, in such a vise, the first cover 56 and the first cover storage body 48 are accommodated inside the fixed jaw 16, so that there is an extra portion on the outer surface of the fixed jaw 16 and the base 10. Since no protrusions are provided, there is an advantage that, for example, the front end surface and the side surface of the fixed jaw 16 and the base 10 can be effectively used as a reference surface when the vise is installed.

  Furthermore, in the vise of the present embodiment, the notch grooves 40 and 40 and the concave grooves 42 and 42 are respectively positioned on the inner side surfaces of the two guide rails 14 and 14 in the front-rear direction. The first and second covers 56, 68 are formed so as to extend continuously and horizontally and cover the gap 12 between the two guide rails 14, 14, respectively. , 40 and the recessed grooves 42, 42 are inserted into the notch grooves 40, 40 and the recessed grooves 42, 42 in a state where both end portions in the width direction are inserted, the first In addition, a gap through which chips can pass is formed between both side edges in the width direction of the extraction portions 60 and 72 of the second covers 56 and 68 and the inner side surfaces of the guide rails 14. Can be advantageously eliminated, Te, chips from entering the gap 12 of the two guide rails 14, 14 can be even more effectively prevented.

  Next, FIGS. 5 and 6 show two other examples in which the arrangement position of the first cover 56 is different from that of the embodiment. In each of the embodiments shown in FIGS. 5 and 6, members and parts having the same structure as in the above-described embodiment are given the same reference numerals as those in FIGS. 1 to 4. It should be understood that the detailed description has been omitted.

  That is, in the vise according to the embodiment shown in FIG. 5, the two guide rails 14, 14 penetrate the front end portion of the base 10 to which the fixed jaw 16 is fixed, through the front end portion in the front-rear direction. A cover passage 76 extending toward the gap 12 is formed in the form of a rectangular through hole having a size that allows the first cover 56 to pass through easily. Further, the cover passage 76 is positioned at a height corresponding to the formation position of the concave grooves 42, 42 provided on the inner side surfaces of the two guide rails 14, 14. , 42 is provided on the extension.

  On the other hand, a first cover storage body 48 in which a first cover 56 is wound and stored around the winding shaft 54 is provided at the front portion of the fixed jaw 16 provided at a fixed position at the front end portion of the base 10. Has been placed. In the first cover housing 48, the bottom outer surface is brought into contact with the front surface of the fixed jaw 16, and the through hole 52 provided in the lower portion of the bottom is provided in the front end portion of the base 10. The screw is fixed to the fixed jaw 16 by a screw member disposed through the bottom in a state corresponding to the cover passage 76 formed.

  In addition, a tension roller 78 that is rotated around a rotation axis extending in the left-right direction (a direction perpendicular to the paper surface in FIG. 5) is provided below the winding shaft 54 in the first cover housing 48. ing. The tension roller 78 is installed such that the roller surface located at the lowest position is positioned at the same height as the position of the concave grooves 42, 42 in the two guide rails 14, 14. Yes.

  In the first cover 56 housed in the first cover housing body 48, the outer end side portion opposite to the fixing side to the take-up shaft 54 is the tension roller 78. It passes through the lower side, passes through the through-hole 52 and the cover passage 76 of the first cover storage body 48, and extends into the gap 12 between the two guide rails 14 and 14, thereby the outer end side portion. However, in the gap 12 between the two guide rails 14, 14, both side end portions in the width direction are positioned in the concave grooves 42, 42 so as to be positioned. Although not clearly shown in the drawing, as in the first embodiment, the end portion of the outer end side portion of the first cover 56 is moved to the movable jaw 18 so as to move together with the movable jaw 18. It is fixed to the mounting projection 58 by rivets or the like.

  Thus, even in the vise of this embodiment, the first cover 56 is wound by the length corresponding to the amount of movement of the movable jaw 18 as the movable jaw 18 moves away from the fixed jaw 16. The first cover storage body 48 stored in the take-up state is gradually taken out in the state of being biased in the winding direction into the gap 12 between the two guide rails 14 and 14. And the taking-out part 60 of the 1st cover 56 taken out from this 1st cover accommodating body 48 is the state which made the both-sides edge part of the width direction enter into the recessed grooves 42 and 42 in this gap | interval 12. Then, while being guided by the concave grooves 42 and 42, the two guide rails 14 and 14 are opened between the movable jaw 18 and the fixed jaw 16 so as to be opened upward. The first cover 56 is configured to be covered with the take-out portion 60 of the first cover 56.

  Therefore, also in this embodiment as described above, regardless of the movement position of the movable jaw 18, the gap 12 between the two guide rails 14 and 14 extends over the entire length of the first cover 56 and the second cover 68. Thus, the operation / effect achieved in the first embodiment can be enjoyed effectively.

  In the vise according to the embodiment shown in FIG. 6, the first cover storage body 48 in which the first cover 56 is wound and stored around the winding shaft 54 is disposed at the front portion of the base 10. Has been. In the first cover storage body 48, a through hole 52 is provided in the upper portion of the bottom. The through hole 52 is positioned corresponding to the cover passage 76 provided at the front end portion of the base 10 with the same structure as the second embodiment, and the bottom outer surface is in contact with the front end surface of the base 10. Thus, it is fixed by being screwed to the front end surface of the base 10 by a screw member disposed through the bottom.

  In the first cover 56 housed in the first cover housing body 48, the outer end side portion opposite to the side fixed to the take-up shaft 54 is the first cover. It extends into the gap 12 between the two guide rails 14, 14 through the through hole 52 and the cover passage 76 of the storage body 48, so that the outer end side portion is extended to the two guide rails 14, 14. In the gap 12, both side ends in the width direction are positioned in the recessed grooves 42, 42. Although not clearly shown in the drawing, as in the first and second embodiments, a female screw member in which the end portion of the outer end side portion of the first cover 56 is moved integrally with the movable jaw 18. It is fixed to the mounting protrusions 58 of the 26 by rivets or the like.

  Thus, even in the vise of the present embodiment, the amount of movement of the first cover 56 as the movable jaw 18 moves away from the fixed jaw 16 as in the first and second embodiments. The take-out portion 60 of the first cover 56 is gradually taken out in a state of being biased in the take-up direction by a length corresponding to the length of the two guide rails 14, 14 in the gap 12. In the state where both side end portions in the width direction are inserted into the concave grooves 42, 42, they are extended while being guided by the concave grooves 42, 42. As a result, the upper opening of the gap 12 between the two guide rails 14, 14 between the movable jaw 18 and the fixed jaw 16 is covered with the take-out portion 60 of the first cover 56. It is configured.

  Therefore, also in this embodiment as described above, regardless of the movement position of the movable jaw 18, the gap 12 between the two guide rails 14 and 14 extends over the entire length of the first cover 56 and the second cover 68. As a result, the actions and effects achieved in the first embodiment can be enjoyed effectively.

  The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention is not limited by the above description.

  For example, in the first embodiment, the first cover 56 is stored in a wound state in the first storage body 48 disposed inside the recess 44 of the fixed jaw 16, and Although it was accommodated inside, there is no problem even if the first cover 56 is directly accommodated in the recess 44 of the fixed jaw 16 in a wound state.

  Further, the arrangement position of the first cover 56 is not particularly limited to the above-described three embodiments. For example, the first cover 56 is arranged on the upper part or the side part of the fixed jaw 16. Also good.

  Further, if the outer end portion of the first cover 56 is fixed to any one of the movable jaw 18 and the female screw member 26 constituting the movable portion, the fixing position and the fixing structure are limited in any way. is not.

  Furthermore, it is of course possible to form the movable portion by an integrated product in which the movable jaw 18 and the female screw member 26 are integrated.

  In the three embodiments, the notch grooves 40 and 40 and the concave grooves 42 and 42 that extend continuously in the front-rear direction are provided on the inner side surface of each guide rail 14 so as to be vertically positioned. Although the width direction both side edge part of each of the 1st cover 56 and the 2nd cover 68 entered in each of the kind of groove | channels 40 and 42, for example, the 1st cover 56 As with the second cover 68, the first cover 56 is also guided by the cutout grooves 40, 40. It can be configured as follows. Apart from that, for example, in the third embodiment, the second cover 68 is housed by a structure similar to the structure in which the first cover housing body 48 is fixed to the front end portion of the base 10. If the cover housing body 62 is fixed to the rear end portion of the base 10 and the outer end portion of the second cover 68 is fixed to the movable jaw 18 or the female screw member 26, the second cover 68 is similar to the first cover 56. The cover 68 can also be configured to be guided by the concave grooves 42, 42. The cutout grooves 40 and 40 and the concave grooves 42 and 42 are not essential in the present invention, and may be omitted as a matter of course.

  Furthermore, the first cover 56 and the second cover 68 may be simply formed of a flexible steel plate having only flexibility and a plate material other than that. In this case, the winding means for taking out the first cover 56 and the second cover 68 from the winding state with the first cover 56 and the second cover 68 biased in the winding direction is And as a part of the second winding mechanism. Such a winding means is not particularly limited in its structure, and for example, a spiral spring or a motor is used as appropriate.

  In addition, in the above-described embodiment, a specific example of applying the present invention to the horizontal type vise configured such that the movable jaw is moved in the horizontal direction relative to the fixed jaw is shown. Of course, the present invention can also be advantageously applied to a vertical vise configured such that the movable jaw is moved up and down with respect to the fixed jaw in the vertical direction. is there.

  In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements, etc. are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

It is upper surface explanatory drawing which shows an example of the vice which has a structure according to this invention. It is II-II sectional explanatory drawing in FIG. FIG. 3 is an explanatory view taken along the line III-III in FIG. 2. It is IV arrow explanatory drawing in FIG. It is principal part sectional explanatory drawing which shows another example of the vise which has a structure according to this invention. FIG. 6 is a view corresponding to FIG. 5 showing still another example of a vise having a structure according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Base 12 Gap 14 Guide rail 16 Fixed jaw 18 Movable jaw 22 Spindle 26 Female thread member 40 Notch groove 42 Recessed groove 44 Recess 46 Cover passage 48 First cover storage body 54, 64 Winding shaft 56 First cover 62 First cover 62 Second cover housing 68 Second cover

Claims (6)

A longitudinal base, two guide rails provided on the base in a state of extending in parallel to each other along the longitudinal direction of the base with a predetermined gap, and one end side in the longitudinal direction of the base A fixed portion provided in a fixed manner, and a movable portion guided by the two guide rails and moved to be able to approach / separate with respect to the fixed portion, and by moving the movable portion, In the vise that clamps and fixes a predetermined article between the fixed part,
The base has a width that can cover the gap between the two guide rails and a predetermined length on the opposite side of the movable portion sandwiching the fixed portion in the longitudinal direction of the base or on the fixed portion. a first cover strip as well as arranged in a winding state, provided the first extraction mechanism for extracting meta state Shi was urging said first cover in the winding direction, and further, said first By fixing the end of the cover on the take-out side to the movable part, and by moving the movable part away from the fixed part, the first cover is taken out from the winding state, The gap between the two guide rails between the movable part and the fixed part is configured to be covered with the first cover taken out from the winding state, while the movable part in the base is The opposite end to the fixed part Or a belt-shaped second cover having a predetermined width and a width capable of covering the gap between the two guide rails is disposed on the movable portion in a wound state, and the second cover is wound up. A second take-out mechanism is provided for taking out in a state of being urged in the direction, and the end on the take-out side of the second cover is fixed to the movable portion or the movable portion of the base in between. The second cover is fixed to the end opposite to the part side so that the second cover is taken out from the winding state as the movable part moves closer to the fixed part. The gap between the two guide rails between the movable portion and the end opposite to the fixed portion with the movable portion interposed therebetween is covered with the second cover taken out from the winding state. In the longitudinal direction of the base of the movable part. Along with the movement, one of the first and second covers is taken out and the other is taken up at the same time, and there is a gap between the two guide rails opened before and after the moving part in the moving direction. A vise characterized by being covered with the first and second covers .   2. The vise according to claim 1, wherein the first cover is accommodated and disposed in a winding state inside the fixed portion, and the first take-out mechanism is provided. While the first cover is configured to have a width larger than the width of the gap between the two guide rails, the movable portion moves on each of the mutually facing inner surfaces of the two guide rails. In the state where the first guide groove extending in the direction is provided, and the first cover is taken out from the winding state, both end portions in the width direction of the first cover are the first guide groove. The vise according to claim 1 or 2 , wherein the vice enters and is guided by the first guide groove. While the second cover is configured to have a width larger than the width of the gap between the two guide rails, the movable portion moves on each of the mutually facing inner surfaces of the two guide rails. Second guide grooves extending in the direction are provided, and in a state in which the second cover is taken out from the wound state, both side ends of the second cover in the width direction are the second guide grooves. The vise according to any one of claims 1 to 3, wherein the vice enters and is guided by the second guide groove. The second take-out mechanism is provided in the movable part, and the second guide groove is located on the upper surface side of the guide rail with respect to the first guide groove, and is opened in the upper surface. The vise according to claim 4, wherein the vice is formed as a groove, and the second cover taken out from the second take-out mechanism is accommodated and guided in the cutout groove. The vise according to claim 5, further comprising a scraper that scrapes off the chips accumulated on the take-out portion of the second cover.

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