JP5965085B1 - Dovetail-type workpiece gripping device and dovetail-sliding stage with dovetail-type workpiece gripping device - Google Patents

Abstract

[PROBLEMS] To provide a dovetail-type workpiece gripping device that can be easily connected to a dovetail sliding stage of various sizes and grips workpieces of various shapes with high accuracy, and is provided with a general-purpose workpiece fixing jig. A dovetail slide stage having high performance is provided. A dovetail-type workpiece gripping device 1a grips a support portion 2a, a fixed grip portion 3a having a fixed grip surface 18A that is fixed to the support portion 2a and grips one of the workpieces 8a, and the other of the workpieces 8a. And a sliding gripping portion 4a that slides freely with respect to the support portion 2a by fitting the dovetail groove and the dovetail, and has a female screw hole and is fixed to the support portion 2a. A fixed holding portion 3a, and a male screw rod 5a that is connected to the handle 9a and has an engaging portion 7a that engages with the female screw hole and engages with the sliding gripping portion 4a. The front sliding grip 4a is slid with respect to the fixed grip 3a. [Selection] Figure 1

Description

  The present invention relates to a dovetail-type workpiece gripping device and a dovetail-sliding stage to which the dovetail-type workpiece gripping device is attached, and in particular, grips and fixes a workpiece using a dovetail-type slide mechanism. The present invention relates to a dovetail-type workpiece gripping device and a dovetail-sliding stage that grips and fixes a workpiece by the dovetail-type workpiece gripping device and positions the workpiece using a dovetail-type slide mechanism.

  The dovetail slide stage is mainly used in precision equipment such as electrical equipment and electronic equipment such as CCD cameras and sensors, optical equipment such as lenses and microscopes, and lighting equipment such as LEDs, and for precise positioning and position adjustment such as focusing. It is used as a stage. Further, even after these precision devices are attached to the dovetail slide stage, the position can be finely adjusted by the dovetail slide stage.

  Since this dovetail slide stage can be precisely adjusted by a scale, it is used not only for the precision instrument described above but also for a wide range of articles. That is, an object to be subjected to position adjustment or the like is fixed on the stage surface of the dovetail slide stage, and precise positioning is performed by the dovetail slide mechanism. In the present specification, an article that is a target of the dovetail-type workpiece gripping device is referred to as a “work”. This "workpiece" is not limited to the processing object of the machine tool, which is a general meaning, but includes, for example, the above-described precision instrument parts, specimen preparations to be observed with a microscope, specimens for inspecting surface scratches, etc. Objects that are not machined are also included.

  FIG. 11 shows a configuration of a general dovetail slide stage 30. In the dovetail slide stage 30, a slide unit 34 having a trapezoid dovetail 32 is movably fitted to a fixed unit 33 having a trapezoid dovetail 31. The fixing unit 33 is fixed to a base (not shown) through a base 39 having a fixing hole 35. The sliding unit 34 is connected to a workpiece fixing jig (not shown) via a bolt (not shown) inserted into the jig mounting hole 36. The sliding unit 34 moves in the direction of the arrow in the figure by rotating the handle 37. This movement is because a drive mechanism using a feed screw (not shown) or a rack and pinion (not shown) is incorporated in the dovetail slide stage 30. The amount of movement is measured by a scale 38 provided as a pair on the back side of the fixed unit 33 and the sliding unit 34 in FIG. By these drive mechanisms, the rotation of the handle 37 is converted into the movement of the sliding unit 34 in the horizontal direction. Furthermore, a sliding fixing screw 40 for fixing the sliding unit 34 at its position and a pressurizing adjusting screw 41 for adjusting the sliding condition of the sliding unit 34 are provided.

  The dovetail sliding stage 30 is provided with a jig mounting hole 36 to which a precision instrument and a jig are mounted. The user may manufacture a fixing jig in order to fix the target workpiece to the sliding unit 34 serving as a stage. That is, when the dovetail sliding stage 30 is used in-house, a fixing jig is manufactured in-house according to the target workpiece. The produced fixing jig is fixed to the jig mounting hole 36 via a fastener such as a bolt.

  Patent Document 1 discloses details of a dovetail sliding stage as an example of a manual stage. In particular, functions such as a slide fixing screw for fixing sliding of the sliding component with respect to the fixed component and a slide adjusting screw for adjusting the degree of sliding of the sliding component are described.

  On the other hand, a jig called a vise or a vise is generally used as a method for sandwiching and fixing a workpiece itself when machining the workpiece in the field of machining or the like. In particular, a small fixing jig for gripping a workpiece called “miniature vice” is known. This miniature vice is a jig for turning a handle to move a fixing block to sandwich a workpiece.

  Patent Document 2 discloses a vise that stably and efficiently performs a fixing process of a workpiece having a complicated angle slope. Here, there is a description that the base on the main body side and the movable body side each form a sliding fit mechanism as a trapezoidal cross section in which the fixed or moving base is an inclined surface.

Japanese Patent No. 4505535 Japanese Utility Model Publication No. 6-9872

  In general, users of conventional dovetail slide stages have designed and manufactured jigs themselves in order to fix a target workpiece on the surface of the dovetail slide stage. This is because there are various configurations and shapes of articles to be attached to the dovetail sliding stage, and the user has to design and manufacture by himself / herself.

  However, when a user designs and manufactures a workpiece fixing jig himself / herself, if there are a wide variety of configurations, specifications, shapes, dimensions, etc. of the target article, a general-purpose jig is designed and manufactured. There is a problem that it is difficult. Also, there are various types of dovetail sliding stages and their shapes and dimensions are different, but there is a problem that it is difficult to design and manufacture a general-purpose jig corresponding to them.

  In the case of the above-mentioned “miniature vice”, the sliding guide for moving the fixing block relies only on two thin shafts, so that the configuration of the hobby article is large and simple. Therefore, there is a problem that it is not suitable for precision machines and machining that require machining accuracy. Also, this miniature vise has a problem that it cannot be attached to the dovetail slide stage at all.

  Furthermore, the general vise has a problem that it is not suitable for precision machines and machining that require machining accuracy, and it cannot be attached to the dovetail slide stage at all.

  One object of the present invention is to provide a dovetail-type workpiece gripping device that can easily connect to a dovetail sliding stage of each size and grips workpieces of various shapes with high accuracy. is there.

  Another object of the present invention is to solve this problem and to provide a highly convenient dovetail sliding stage equipped with a general-purpose workpiece fixing jig.

In order to achieve the above object, a dovetail-type workpiece gripping device according to the present invention includes a support portion, a fixed grip portion having a first grip surface fixed to the support portion and gripping one of the workpieces, and the other of the workpieces. A second gripping surface that has a dovetail groove and a dovetail to freely slide relative to the support portion, and has a female screw hole and is fixed to the support portion. A fixed holding portion and a male screw rod having an engaging portion coupled to the handle and engaged with the female screw hole and screwed into the sliding holding portion, and is slid with respect to the fixed holding portion by operating the handle. The movable gripping part is slid, and the support part is provided with a connecting long hole that matches a connecting bolt hole provided in the sliding unit of the dovetail sliding stage to be connected .

With the above configuration, the workpiece is gripped by the fixed gripping portion fixed to the support portion and the sliding gripping portion that freely slides with respect to the support portion. Since this sliding grip part slides with respect to the support part by fitting the dovetail groove and the dovetail, the work can be gripped with high accuracy without any play. Further, the engaging portion of the male screw rod connected to the handle engages with the female screw hole on the inner surface side of the sliding grip portion. Thereby, the sliding gripping part freely slides with respect to the fixed gripping part by operating the handle. Furthermore, by holding the male screw rod in the female screw hole provided in the fixed holding portion fixed to the support portion, the male screw rod does not loosen due to its own weight, and the male screw rod is gripped with high accuracy without falling. be able to. Moreover, it can be set as the convenient dovetail slide stage provided with the general-purpose workpiece fixing jig.

In order to achieve the above object, a dovetail-type workpiece gripping device according to the present invention includes a support portion and first and second dovetail-type workpiece gripping units connected with the support portion interposed therebetween. And the second dovetail-type workpiece gripping unit has first and second fixed gripping portions having a first gripping surface for gripping one of the workpieces, and a second gripping surface for gripping the other of the workpieces. The first and second sliding gripping portions, which have ants that fit with the ants of the support portion, slide freely with respect to the support portion, and the first and second fixed gripping portions, First and second male threaded rods having first and second engaging portions that engage with the first and second sliding grip portions and coupled to the first and second handles, respectively. , is slid the first or second sliding gripping portion by operating the first or second handle with respect to the first or the second stationary gripping part The support portion is characterized in that connected the ants Mizosurido stage compatible connecting long holes in connection bolt hole provided in the sliding unit is provided.

With the above configuration, two workpieces can be simultaneously and independently gripped by one dovetail-type workpiece gripping device. Further, the two workpieces can be gripped at the same time even if they have different shapes. Moreover, it can be set as the convenient dovetail slide stage provided with the general-purpose workpiece fixing jig.

  In the dovetail-type work gripping device, the first and second dovetail-type work gripping units are preferably provided such that the first and second handles are opposite to each other with the support portion interposed therebetween. . Accordingly, it is not necessary to increase the distance between the first and second handles in consideration of operability, and a compact dovetail-type workpiece gripping device can be obtained.

  Further, in the dovetail-type workpiece gripping device, it is preferable that a hole for a pressurizing adjustment screw is provided in the sliding gripping portion, and that the running backlash of the sliding gripping portion is adjusted by tightening the pressurizing adjustment screw. . Thereby, the play which generate | occur | produces between a sliding holding part and a male threaded rod can be removed by tightening a pressurization adjustment screw, and the object workpiece | work can be hold | gripped with high precision.

  In addition, the dovetail work gripping device is provided with a hole for a stopper in the sliding gripping part, preventing the male screw rod from coming out of the sliding gripping part by inserting the stopper, and removing the stopper, It is preferable that the sliding part can be replaced with another sliding part having a different second gripping surface. Thereby, the sliding gripping part can be exchanged according to the shape of the workpiece, and workpieces of various shapes can be gripped with high accuracy.

  Moreover, it is preferable that the dovetail type | form workpiece holding | grip apparatus is provided with the scale which makes the origin the position which the 1st holding surface and the 2nd holding surface contact | adhered to the side surface of the support part. As a result, the size of the workpiece sandwiched between the fixed gripping portion and the sliding gripping portion can be measured, and for example, the center position in the width direction of the workpiece can be easily calculated.

  Further, in the dovetail work gripping device, the connecting long hole provided in the support portion is provided with a connecting bolt hole protruding in a direction intersecting with the connecting long hole, and the connecting bolt hole has a pitch different from the pitch of the connecting bolt hole. It is also preferable to adapt to bolt holes. As a result, it can be connected not only to a standard size dovetail slide stage but also to a dovetail slide stage having a special bolt hole pitch such as a small dovetail slide stage. .

  Moreover, it is preferable that the dovetail-type workpiece gripping device is used by being connected to a dovetail slide stage. Thereby, it can be set as the highly convenient dovetail slide stage provided with the general-purpose workpiece fixing jig. Further, by connecting to the dovetail sliding stage, it is possible to provide a dovetail-type workpiece gripping device capable of positioning with high accuracy.

  As described above, according to the dovetail-type workpiece gripping device according to the present invention, the dovetail-type workpiece gripping device that can be easily connected to each size of the dovetail slide stage and grips workpieces of various shapes with high accuracy. Can be provided.

  Moreover, according to the dovetail slide stage according to the present invention, it is possible to provide a highly convenient dovetail slide stage including a general-purpose workpiece fixing jig.

It is a top view showing a schematic structure of a 1st embodiment of a dovetail type work gripping device concerning the present invention. It is a side view of a 1st embodiment of a dovetail type work holding device. It is the front view and sectional drawing of 1st Embodiment of a dovetail type workpiece holding apparatus. It is a bottom view of a 1st embodiment of a dovetail type work holding device. It is a side view which shows the dovetail-type workpiece holding apparatus connected with the dovetail slide stage. It is a top view of a standard size dovetail slide stage to which a dovetail work gripping device is connected. It is a top view of a small size dovetail slide stage to which a dovetail type work gripping device is connected. It is a top view which shows schematic structure of 2nd Embodiment of the dovetail type workpiece holding apparatus which concerns on this invention. It is a side view of 2nd Embodiment of a dovetail-type workpiece holding apparatus. It is a front view of 2nd Embodiment of a dovetail type workpiece holding apparatus. It is a perspective view which shows the structure of a general dovetail slide stage.

(First embodiment of dovetail-type workpiece gripping device)
Below, it demonstrates in detail about 1st Embodiment of the dovetail type workpiece holding apparatus 1a which concerns on this invention using drawing. FIG. 1 is a plan view showing a first embodiment of a dovetail work gripping device 1a. FIG. 1A shows a state in which the dovetail work gripping device 1a is closed without sandwiching the work 8a. FIG. 2B shows a state in which the dovetail work gripping device 1a holds the work 8a. FIG. 2 shows side views corresponding to FIGS. 1 (a) and 1 (b). That is, FIG. 2A is a side view of FIG. 1A viewed from the AA direction, and FIG. 2B is a side view of FIG. 1B viewed from the BB direction. is there. FIG. 3 is a front view of the dovetail-type workpiece gripping device 1a of FIG. 3A is a front view of FIG. 2A viewed from C1-C1, and FIG. 3B is a cross-sectional view of FIG. 2A viewed from C2-C2. Further, FIG. 4 is a bottom view of the dovetail-type workpiece gripping device 1a of FIG. 1, and shows a bottom view of the dovetail-type workpiece gripping device 1a of FIG.

  The dovetail-type workpiece gripping device 1a includes a support portion 2a, a fixed gripping portion 3a, a sliding gripping portion 4a, a fixed holding portion 6a, and a male screw rod 5a. The fixed grip portion 3a is fixed to the support portion 2a and has a fixed grip surface 18A that grips one of the gripped workpieces 8a. As shown in FIG. 2B, the fixed grip portion 3a is fixed to the support portion 2a by tightening a fixing screw 19a into the fixing screw hole 20a. Further, the sliding gripping portion 4a has a sliding gripping surface 18B that grips the other of the gripped workpieces 8a. Further, the fixed holding portion 6a has a female screw hole (not shown) that passes therethrough and is fixed to the support portion 2a. As shown in FIG. 2B, the fixed holding portion 6a is fixed to the support portion 2a by tightening a fixing screw 19a into the fixing screw hole 20a. Furthermore, the male screw rod 5a is connected to the handle 9a, and has an engaging portion 7a that engages with the female screw hole on the inner surface side of the fixed holding portion 6a and is screwed into the sliding grip portion 4a.

  That is, the workpiece 8a is sandwiched between a fixed grip portion 3a whose position is fixed on the support portion 2a and a sliding grip portion 4a whose position freely slides on the support portion 2a by the rotation operation of the handle 9a. It is. Here, the female screw hole provided in the fixed holding portion 6a whose position is fixed on the support portion 2a engages with the male screw rod 5a. As a result, when the handle 9a is rotated, the male screw rod 5a moves back and forth, whereby the sliding grip portion 4a can be moved. A stopper hole 16a is provided in the cross-sectional direction at the tip of the male screw rod 5a. As shown in FIG. 2A, the stopper 15a (see FIG. 1) inserted into the stopper hole 16a is screwed up to the stopper hole 16a of the male threaded rod 5a, and the sliding grip portion 4a The rotation of the male screw rod 5a inserted inside is stopped. Further, by screwing the stopper 15a, it is possible to prevent the male screw rod 5a from coming off from the sliding gripping portion 4a. Further, by holding the male screw rod 5a in the female screw hole provided in the fixed holding portion 6a fixed to the support portion 2a, the male screw rod 5a does not loosen due to its own weight, and the male screw rod 5a is not bent. It can be gripped with high accuracy.

  The fixed grip portion 3a fixed to the support portion 2a can be replaced with a fixed grip portion 3a having a different fixed grip surface 18A by removing the fixing screw 19a. Further, the stopper 15a is removed from the sliding gripping portion 4a, and the fixed gripping portion 3a is fixed to the support portion 2a, and the fixing screw 19a is removed to replace the sliding gripping portion 4a having a different sliding gripping surface 18B. be able to. That is, as shown in FIGS. 1B and 2B, the fixed gripping surface 18A of the fixed gripping portion 3a that grips the workpiece 8a from both sides or the sliding gripping surface 18B of the sliding gripping portion 4a is the workpiece 8a. By replacing the gripping surfaces 18A and 18B according to the specific shape, the workpiece 8a can be easily gripped.

  For example, when gripping a cylindrical workpiece 8a, a workpiece 8a having a cylindrical body with gripping surfaces 18A and 18B may be preferable. In that case, the fixed grip portion 3a or the slide grip portion 4a may be replaced with a fixed grip portion 3a or a slide grip portion 4a having grip surfaces 18A, 18B having a concave cylindrical body. Or you may attach the components which have the holding surfaces 18A and 18B which made the concave cylinder the fixed holding part 3a or the sliding holding part 4a.

  As shown in FIG.3 (b), the dovetail groove 13a provided in the sliding holding part 4a and the dovetail 14a provided in the support part 2a fit. And the sliding grip part 4a slides with respect to the support part 2a by rotation operation of the handle 9a. The sliding grip 4a is provided with a pressure adjusting screw hole 24a, and the pressure adjusting screw 23a is tightened into the pressure adjusting screw hole 24a. Thereby, the pressurizing adjustment screw 23a pushes in the protruding portion 22a having an inverted triangular cross section provided in the sliding gripping portion 4a. When the pressure adjusting screw 23a is pushed in, the backlash of the sliding gripper 4a during traveling is eliminated. That is, by tightening the pressurizing adjustment screw 23a, the sliding gripping portion 4a and the support portion 2a are brought into close contact with each other, and the running backlash is eliminated by the friction.

  FIG. 4 shows a bottom view of the bottom surface of the support portion 2a shown in FIG. 2 as seen from the DD direction. 1 is provided with a connecting long hole 10a and a connecting bolt hole 11a, and the dovetail-type workpiece gripping device 1a is connected to the dovetail-sliding stage 30 by the connecting bolt 12a. Further, the fixing screw 19a is inserted into the fixing screw hole 20a, and the fixed grip portion 3a and the fixed holding portion 6a are fixed to the support portion 2a.

  As shown in FIGS. 2A and 2B, the origin is a position where the fixed gripping surface 18A and the sliding gripping surface 18B are in close contact with the side surface of the support portion 2a when the workpiece 8a is not installed. A scale 21a is provided. Thereby, the dimension of the workpiece | work 8a pinched | interposed between the fixed holding | grip part 3a and the sliding holding | grip part 4a can be accurately measured with the scale 21a provided in the dovetail-type work holding | grip apparatus 1a. Further, for example, the center position in the width direction of the workpiece 8a having a circular cross section can be calculated by the dovetail workpiece holding device 1a.

(Configuration of dovetail slide stage with dovetail work gripping device)
FIG. 5 is a side view of the dovetail-type workpiece gripping device 1 a connected to the dovetail-sliding stage 30. The dovetail work gripping device 1a may be used alone as described above, or may be used by being connected to the dovetail slide stage 30 which is a conventional technique. That is, conventionally, the dovetail slide stage 30 has been manufactured by a user or a device for attaching the workpiece 8 a to the dove groove slide stage 30 and attached to the dovetail slide stage 30. On the other hand, by using this dovetail-type workpiece gripping apparatus 1a with high accuracy, it is possible to eliminate the labor and cost for the user to manufacture the apparatus or jig in-house. In addition, the dovetail-type workpiece gripping device 1a according to the present invention can grip the workpiece 8a with certainty, and can handle various shapes because of its high versatility.

  Then, as described above, the position of the dovetail slide stage 30 to which the dovetail work gripping device 1a is connected is adjusted in a state where the work 8a is fixed by the dovetail work gripping device 1a. At this time, the center position of the workpiece 8a is easily calculated by the scale 21a provided in the dovetail workpiece gripping apparatus 1a, and the position can be adjusted using the value. In the present application, the dovetail sliding stage 30 has been described with a general X-axis stage that slides in one direction. For example, an XY-axis stage that slides in two directions, a Z-axis stage that slides in the vertical direction, A rotary stage or the like may be selected or used in combination.

(Connection with dovetail slide stage)
Hereinafter, a configuration in which the dovetail work gripping apparatus 1a is connected to the dovetail slide stage 30 will be described. FIG. 6 is a plan view showing the upper surface of a standard size dovetail sliding stage 30a to which the dovetail work holding device 1a is connected. FIG. 7 is a plan view showing the top surface of a small-sized dovetail slide stage 30b to which the dovetail work gripping device 1a is connected. As shown in FIG. 5, the support portion 2a of the dovetail work gripping device 1a and the upper surface of the slide unit 34 of the dovetail slide stage 30 are connected to the connecting bolt 12a (FIG. 1 ( a) and (b)).

  As shown in FIGS. 1 and 2, the support portion 2a of the dovetail-type workpiece gripping device 1a has a jig mounting hole 36 provided in the slide unit 34 of the dovetail slide stages 30a, 30b to be connected. Are provided with a connecting long hole 10a and a connecting bolt hole 11a. That is, as shown in FIG. 5, the connecting bolt 12a (see FIG. 1) inserted into the connecting bolt hole 11a is the connecting long hole 10a and connecting bolt hole shown in FIGS. 1 (a), 1 (b) and FIG. 11a. The connecting bolt 12a is engaged with the jig mounting hole 36 shown in FIGS. Therefore, for example, it is necessary to match the jig mounting hole 36 of the standard size dovetail sliding stage 30 shown in FIG. 11 or the special small size dovetail sliding stage 30b.

  In the jig mounting hole 36 of the standard size dovetail sliding stage 30a of FIG. 6, the pitch of the bolt holes P1 and P2 is the standard pitch. Accordingly, the connecting long hole 10a in FIG. 1 is a long hole so as to adapt to the bolt pitches of P1 and P2. That is, when the connecting bolt 12a is received in the connecting long hole 10a and fastened, the connecting bolt 12a provided in the jig mounting hole 36 of the standard size dovetail sliding stage 30a is stored.

  On the other hand, the jig mounting holes 36 of the small sized dovetail sliding stage 30b in FIG. 7 have the pitches of bolt holes P3, P4 and P5. In order to adapt to this special bolt pitch, the connecting long hole 10a provided in the support portion 2a is provided with a connecting bolt hole 11a protruding in a direction intersecting with the connecting long hole 10a. Since the pitch of the connecting bolt holes 11a is different from the pitch of the connecting long holes 10a, the connecting bolt holes 11a can be adapted to the dovetail sliding stage 30b having a special bolt pitch. Note that these special bolt pitches are not limited to the small-sized bolt pitch described above, and the optimum connecting long hole 10a and connecting bolt hole 11a are selected in accordance with the commercially available dovetail sliding stage 30.

(Second embodiment of dovetail-type workpiece gripping device)
FIG. 8 is a plan view showing a schematic configuration of the second embodiment of the dovetail-type workpiece gripping device 1b according to the present invention. FIG. 9 is a side view of the dovetail work gripping device 1b shown in FIG. FIG. 9 is a side view of FIG. 8 viewed from the FF direction. Further, FIG. 10 shows the dovetail-type workpiece gripping device 1b of FIG. 8 in a front view and a sectional view. Fig.10 (a) is the front view seen from the direction of G1-G1 of FIG. FIG. 10B is a cross-sectional view taken along line G2-G2 in FIG. The second embodiment of the dovetail-type workpiece gripping device 1b is an embodiment in which two first embodiments of the dovetail-type workpiece gripping device 1a are combined in the opposite direction.

The second embodiment of the dovetail-type workpiece gripping device 1b includes a support portion 2b, a first dovetail-type workpiece gripping unit 17a (hereinafter referred to as a first gripping unit 17a), and a second dovetail-type workpiece gripping unit 17b. (Hereinafter referred to as the second gripping unit 17b). The first gripping unit 17a and the second gripping unit 17b, are connected to opposite sides of the support portion 2b, the first gripping unit 17a grasps first workpiece 8b _1, the second gripping unit 17b and the second workpiece Hold 8b ₂ . That is, the second embodiment of Dovetail work gripping device 1b can simultaneously grip the different first workpiece 8b ₁ and the 28b ₂ by the first gripping unit 17a and the second gripping unit 17b.

As shown in FIG. 8, first gripping unit 17a is slid to grip the first stationary gripping part _{3b 1,} first the other workpiece 8b ₁ having a fixed gripping surface 18A for gripping one of the first workpiece 8b ₁ A first sliding grip portion 4b ₁ having a gripping surface 18B, a first engagement portion 7b ₁ , and a first male screw rod 5b ₁ connected to the first handle 9b ₁ are configured. On the other hand, the second gripping unit 17b has a sliding gripping surface 18B for gripping the second stationary gripping part _{3b 2,} second other workpiece 8b ₂ with a fixed gripping surface 18A for gripping one of the second workpiece 8b ₂ second sliding gripping portion 4b _2, the second engagement portion 7b _2, and a second male screw rod 5b ₂ for connecting the second handle 9b _2.

As shown in FIG. 10, the first sliding grip portion 4b ₁ and the second sliding grip portion 4b ₂ have dovetail grooves 13b, and are supported by the support portions 2b by fitting with the ants 14b provided in the support portion 2b. Slide freely on top. The first male screw rod 5b ₁ and the second male screw rod 5b _2, the first stationary gripping part 3b ₁ and engages with the second stationary gripping part 3b _2, the first sliding gripping portion 4b ₁ and the second through the sliding grip portion 4b _2. Then, by rotating the first handle 9b ₁ or the second handle 9b ₂ , the first sliding grip portion 4b ₁ or the second sliding grip portion 4b _{2 is changed} to the first fixed grip portion 3b ₁ or the second fixed grip portion 3b _2. Slide against. In this way, the first gripping unit 17a and the second gripping unit 17b can grip in different workpiece gripping ranges X1 and X2, respectively, as shown in FIG.

As described above, the first gripping unit 17a and the second gripping unit 17b is first handle 9b ₁ and a second handle 9b ₂ is provided so as to be opposite to each other across the support portion 2b. As a result, the first handle 9b ₁ and the second handle 9b ₂ do not interfere with each other when they are rotated. Further, the thickness of the support portion 2b that separates the first gripping unit 17a and the second gripping unit 17b can be minimized.

  In addition, in 2nd Embodiment of the dovetail-type workpiece | work holding device 1b mentioned above, although there may be other functions and components which were demonstrated in the dovetail-type workpiece gripping device 1a of the 1st embodiment, this specification The description is omitted in the book.

  The configuration, shape, size, and arrangement relationship described in the above embodiments are merely schematically shown to the extent that the present invention can be understood and implemented. Therefore, the present invention is not limited to the described embodiments, and can be variously modified without departing from the scope of the technical idea shown in the claims.

1a, 1b Dovetail-type workpiece gripping device, 2a, 2b support part, 3a fixed gripping part, 3b ₁ first fixed gripping part, 3b ₂ second fixed gripping part, 4a sliding gripping part, 4b ₁ first sliding gripping Part, 4b ₂ second sliding grip part, 5a male threaded rod, 5b ₁ first male threaded bar, 5b ₂ second male threaded bar, 6a fixed holding part, 7a engaging part, 7b ₁ first engaging part, 7b ₂ second engagement portion, 8a work, 8b ₁ first work, 8b ₂ second work, 9a handle, 9b ₁ first handle, 9b ₂ second handle, 10a long slot for connection, 11a connection bolt hole, 12a Connection bolt, 13a, 13b Dovetail groove, 14a, 14b Dovetail, 15a Stopper, 16a Stopper hole, 17a First dovetail groove type work gripping unit, 17b Second dovetail groove type work gripping unit, 18A Fixed gripping surface, 18B Sliding Grip surface, 19a solid Constant screw, 20a Fixing screw hole, 21a Scale, 22a Projection, 23a Pressure adjusting screw, 24a Pressure adjusting screw hole, 30 Dovetail sliding stage, 30a Standard size, 30b Small size, 31 Dovetail, 32 Ant, 33 Fixed unit, 34 Sliding unit, 35 Fixing hole, 36 Fixing hole, 37 Handle, 38 Scale, 39 Base, 40 Sliding fixing screw, 41 Pressure adjusting screw, X1, X2 Work gripping range .

Claims (8)

A support part;
A fixed grip portion having a first gripping surface fixed to the support portion and gripping one of the workpieces;
A sliding gripping portion having a second gripping surface for gripping the other of the workpieces, and sliding freely with respect to the support portion by fitting the dovetail groove and the ants;
A fixed holding portion that has a female screw hole and is fixed to the support portion;
A male threaded rod connected to a handle and having an engaging part that engages with the female threaded hole and engages with the sliding gripping part;
Sliding the sliding gripping part relative to the fixed gripping part by operating the handle;
The dovetail-type workpiece gripping device is characterized in that the support portion is provided with a connecting long hole that matches a connecting bolt hole provided in the sliding unit of the dovetail sliding stage to be connected . A support part;
The first and second dovetail work gripping units connected across the support, and
The first and second dovetail work gripping units are:
First and second fixed gripping portions having a first gripping surface for gripping one of the workpieces;
First and second sliding gripping portions having a second gripping surface for gripping the other of the workpieces, having an ant that fits with an ant on the support portion, and sliding freely with respect to the support portion When,
The first and second handles have first and second engaging portions that pass through the first and second fixed grip portions and engage with the first and second sliding grip portions. Each having a first or second male threaded rod to be coupled,
Sliding the first or second sliding gripping portion with respect to the first or second fixed gripping portion by operating the first or second handle ;
The dovetail-type workpiece gripping device is characterized in that the support portion is provided with a connecting long hole that matches a connecting bolt hole provided in the sliding unit of the dovetail sliding stage to be connected .   3. The dovetail-type workpiece gripping device according to claim 2, wherein the first and second dovetail-type workpiece gripping units are configured such that the first and second handles are opposite to each other with the support portion interposed therebetween. A dovetail-type work gripping device, characterized by being provided so as to become.   The dovetail-type workpiece gripping device according to any one of claims 1 to 3, wherein the sliding gripping portion is provided with a hole for a pressurizing adjustment screw, and the pressurizing screw is tightened. A dovetail-type workpiece gripping device that adjusts play during travel of the sliding gripping portion.   5. The dovetail-type workpiece gripping device according to claim 1, wherein the sliding gripping portion is provided with a hole for a stopper, and the stopper is inserted to remove the sliding gripping portion from the sliding gripping portion. A dovetail-type workpiece gripping device, wherein the male threaded rod is prevented from coming off and can be replaced with another sliding gripping portion having a different second gripping surface by removing the stopper.   The dovetail-type workpiece gripping device according to any one of claims 1 to 5, wherein a position where the first gripping surface and the second gripping surface are in close contact with a side surface of the support portion is an origin. A dovetail-type workpiece gripping device, characterized in that a scale is provided. The dovetail-type workpiece gripping device according to claim 6 ,
The connection elongated hole provided in the support portion is provided with a connection bolt hole protruding in a direction intersecting with the connection elongated hole, and is adapted to a connection bolt hole having a pitch different from the pitch of the connection bolt hole. A dovetail-type workpiece gripping device. A dovetail slide stage with a dovetail-type workpiece gripping device to which the dovetail-type workpiece gripping device according to any one of claims 1 to 7 is connected.

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