JP2006218584A - Clamping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamping device which can rigidly press and fix a fixing object and is available for fixing a fixing object having a different height. <P>SOLUTION: The clamping device 3 is formed of a presser 4 for pressing and fixing a workpiece 2, and manually operable first and second operators 5, 6. Herein when the first operator 5 is operated, a pressing section 4a is located at a location opposite to the workpiece 2, and the presser 4 is moved in a longitudinal direction 410 that approaches the workpiece 2 or separates from the workpiece 2. Further when the presser 4 is located at an arbitrary location at which the presser 4 is operable by the first operating body 5, the second operator 6 is operated such that the pressing section 4a at the location opposite to the workpiece 2, moves in the longitudinal direction 410 to press the workpiece 2 or cancel the pressing. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a clamping device for fixing an object to be fixed such as a workpiece to a fixing part such as a fixture base or a machine table.

  2. Description of the Related Art Conventionally, for example, there is a clamp device using a cam as a device for fixing a workpiece as an object to be fixed to a fixing portion such as a fixture base, an MC pallet, or a machine table (for example, see Non-Patent Document 1). ). As shown in FIG. 15, the clamp device includes a main body 24 attached to the fixing portion 21, a pressing bar 25 that fixes the work 22 so as to press it, and a cam member 26. Here, the main body 24 is formed in a columnar shape, and is fixed to the fixing portion 21 by a male screw 24a at the lower end. The pressing bar 25 was assembled to the main body 24 so that the main body 24 penetrates the through hole 25a at the intermediate position. The cam member 26 is pivotally supported on the upper end portion of the main body 24 so that the cam surface 26 a abuts on the upper surface 25 b of the pressing bar 25. Therefore, by rotating the operation handle 27 provided on the cam member 26, the cam member 26 pushes down the pressing bar 25 at the cam surface 26a. Thereby, the pressing portions 25 c and 25 c at both ends of the pressing bar 25 press the workpieces 22 and 22 on the fixing portion 21, and thus the workpieces 22 and 22 are fixed to the fixing portion 21.

Hiram E.E. Grant / Takeshi Yasui "Practical design drawings (2) / Jigs and fixtures (2)" Okawa Publishing Co., Ltd., September 10, 1981, p. 21

  By the way, in the conventional clamping device, since the cam member 26 is used, the workpiece 22 can be strongly pressed by the pressing bar 25, but the stroke of the pressing bar 25 is small, and the workpiece 22 having various heights. Could not cope with.

  The present invention has been made in order to solve the above-described conventional drawbacks. The object of the present invention is to firmly fix the object to be fixed and to fix the object having various heights. It is providing the clamp apparatus which can respond to.

In order to achieve the above object, the clamping device according to the present invention has the following configuration. That is,
The clamp device according to the invention of claim 1 is a clamp device for fixing an object to be fixed to a fixing part, and a pressing body having a pressing part for fixing the object to be fixed, A first operating body and a second operating body which are manually operated. In this case, the pressing body is positioned at an opposing position where the pressing portion faces the fixed object by the operation of the first range of the first operating body, or approaches the fixed object. The pressing portion is moved to the opposite position by an operation of the second operating body at an arbitrary operating position in the first range of the first operating body. It moves to the said vertical direction so that it may be located and may press the said to-be-fixed object, or may cancel | release the press. Therefore, when the first operating body is operated in one direction in the first range, the pressing body moves in the vertical direction and the pressing portion approaches the object to be fixed. Then, the pressing body moves in the pressing direction in which the pressing portion presses the fixed object in the vertical direction by an operation in one direction of the second operating body. Further, by the operation in the other direction of the second operating body, the pressing body moves in the longitudinal direction and the pressing portion releases the pressing of the object to be fixed and releases the pressing. Then, by the operation of the first operating body in the other direction in the first range, the pressing body moves in the longitudinal direction and the separating direction in which the pressing portion is separated from the fixed object. .

  Thereby, in order to fix an object to be fixed to the fixing portion using this clamping device, after the object to be fixed is arranged at a fixing position, the first operating body is operated in one direction within the first range. Thus, the pressing body moves in the vertical direction and in the proximity direction in which the pressing portion approaches the fixed object, and comes into contact with the fixed object. Next, by operating the second operating body in one direction, the pressing body moves in the vertical direction and the pressing portion presses the object to be fixed and presses the object to be fixed. Thus, the fixed object is pressed by the pressing portion of the pressing body and fixed to the fixing portion. Here, the first operating body is used until the pressing portion of the pressing body comes into contact with the object to be fixed, and the second operating body is used for the subsequent pressing of the fixing object by the pressing portion. As described above, the stroke in the entire vertical direction of the pressing body is a stroke for bringing the pressing portion by the first operating body into contact with the fixed object, and for pressing the pressing portion by the second operating body against the fixed object. Since it is separated into strokes, each stroke can be set appropriately. On the other hand, in order to remove the object to be fixed from the fixing part, first, by operating the second operating body in the other direction, the pressing body is in the vertical direction and the pressing part is pressed against the object to be fixed. It moves in the pressure release direction to release the pressure and releases the pressure. Next, when the first operating body is operated in the other direction within the first range, the pressing body moves in the vertical direction and the separating direction in which the pressing portion is separated from the fixed object. Therefore, the fixed object is removed from the fixing portion.

  The clamp device according to a second aspect of the present invention is the clamp device according to the first aspect, wherein the pressing body is configured so that the pressing portion is moved in the vertical direction by an operation in a second range of the first operating body. In a direction that is spaced apart from the object to be fixed in the direction, it moves in a lateral direction intersecting the longitudinal direction, which is a direction toward the facing position or a direction facing a non-facing position deviating from the facing position. To do. Therefore, by the operation of the first operating body in one direction in the second range, the pressing body is moved from the non-facing position to the lateral position and from the non-facing position in the lateral position. It moves in the forward direction toward the facing position, reaches the facing position, and then the pressing body moves in the proximity direction by the operation of the first operating body in one direction in the first range. To do. Further, by the operation of the first operating body in the other direction in the first range, the pressing body moves in the separation direction to reach the separation position at the facing position, and subsequently, the first operation body By operating the one operating body in the other direction in the second range, the pressing body moves from the facing position in the backward direction toward the non-facing position from the facing position in the lateral direction. Reach its non-opposing position.

  According to this clamping device, when fixing an object to be fixed to a fixing part, after placing the object to be fixed at a fixed position, by operating the first operating body in one direction within the second range, The pressing body moves in the advancing direction from the non-facing position to the facing position in the lateral direction with the pressing body positioned at the separated position. Then, the pressing body reaches the facing position, and then, by operating the first operating body in one direction within the first range, the pressing body moves in the proximity direction. Then, as described above, the pressing body abuts on the object to be fixed, and then the second operating body is operated in one direction so that the pressing body moves in the pressing direction and the object to be fixed. Press. On the other hand, when the object to be fixed is removed from the fixing portion, as described above, first, the pressing body is moved in the pressing release direction by operating the second operating body in the other direction. Release the pressure. Next, by operating the first operating body in the other direction within the first range, the pressing body moves in the separating direction. Then, the pressing body reaches the separation position, and then, by operating the first operating body in the second range in the other direction, the pressing body is in the lateral direction from the facing position to the non-facing position. Move in the direction of retreat. Then, the pressing body reaches the non-opposing position. Therefore, the fixed object is removed from the fixing portion. In this way, when the object to be fixed is arranged on the fixing part or the object to be fixed is removed from the fixing part, the pressing body is in a non-opposing position that is out of the opposing position with respect to the object to be fixed. Therefore, it is possible to easily arrange and remove the objects to be fixed without being disturbed.

  According to a third aspect of the present invention, there is provided the clamping device according to the first aspect, wherein the clamping device is attached to and fixed to the fixing portion, and the base body is attached to the base body. And an intermediate body to which the pressing body is attached. Therefore, the pressing body moves in the longitudinal direction with respect to the intermediate body by the operation of the first operating body in the first range. And by the operation of the second operating body, the intermediate body moves in the longitudinal direction with respect to the base body, so that the pressing body moves in the longitudinal direction together with the intermediate body. That is, the vertical movement of the pressing body by the first operating body and the vertical movement of the pressing body by the second operating body are achieved by interposing the intermediate body between the base body and the pressing body. .

  According to a fourth aspect of the present invention, there is provided the clamping device according to the second aspect, wherein the clamping device is attached to and fixed to the fixing portion, and the base body is attached to the base body. And an intermediate body to which the pressing body is attached. Accordingly, the pressing body moves in the longitudinal direction with respect to the intermediate body by the operation of the first operating body in the first range, and the second range of the first operating body. By the operation in, the pressing body moves in the lateral direction with respect to the intermediate body. And by the operation of the second operating body, the intermediate body moves in the longitudinal direction with respect to the base body, so that the pressing body moves in the longitudinal direction together with the intermediate body. That is, the vertical movement and the horizontal movement of the pressing body by the first operating body and the vertical movement of the pressing body by the second operating body are such that an intermediate body is interposed between the pressing body and the base body. Achieved.

  A clamp device according to a fifth aspect of the present invention is the clamp device according to the fourth aspect, wherein the intermediate body includes a screw portion having an axial center extending in the longitudinal direction. Here, the first operating body is screwed into the threaded portion, and with respect to the intermediate body, one direction and the other direction of the first operating body in the first range, and the first It can be rotated in a direction along the spiral of the threaded portion, which is one direction and the other direction in the range of 2. And the said press body can rotate in the direction along the spiral of the said screw part used as the said horizontal direction, corotating with the said 1st operation body. Therefore, by the rotation operation of the first operating body in one direction in the second range, the pressing body rotates together with the first operating body at the separated position from the non-facing position. , Rotationally moved in the forward direction along the spiral of the threaded portion to reach the opposing position, stopped at the opposing position, and subsequently, one direction of the first operating body in the first range By the rotation operation, the pressing body is pushed by the first operating body while being prevented from rotating, and moves from the separated position in the proximity direction along the axis of the screw portion. Then, by the rotation operation of the first operating body in the other direction in the first range, the pressing body is pushed by the first operating body at the facing position while being prevented from rotating, It moves in the separation direction along the axis of the screw portion to reach the separation position, and the detent is released at the separation position, and then the other direction of the first operating body in the second range By the rotation operation, the pressing body rotates together with the first operating body, rotates from the facing position in the retracting direction along the spiral of the screw portion, and reaches the non-facing position.

  According to a sixth aspect of the present invention, in the clamping device according to any one of the third to fifth aspects, the intermediate body is interlocked with the operation of the second operating body by a cam mechanism. And move in the vertical direction.

  According to the clamp device according to the present invention, the stroke in the entire vertical direction of the pressing body is a stroke for bringing the pressing portion by the first operating body into contact with the fixed object, and the pressing portion by the second operating body is fixed. Since the strokes are separated into the strokes for pressing the object, the respective strokes can be set appropriately. As a result, the fixed object can be firmly pressed and fixed, and the objects with various heights can be fixed. Can handle fixed objects.

  Hereinafter, the best mode for carrying out a clamping device according to the present invention will be described with reference to the drawings.

  1 to 14 show an embodiment of a clamping device according to the present invention. Reference numeral 1 in the figure denotes a fixing portion such as a fixture base attached to a pallet or table of a machine tool such as a machining center. Reference numeral 2 denotes a work as a fixed object to be processed, for example. Reference numeral 3 denotes a clamp device for fixing the work 2 to the fixing portion 1.

  The clamp device 3 includes a pressing body 4 having a pressing portion 4a for fixing the work 2 so as to press the work 2, and first and second operating bodies 5 and 6 that are manually operated. Here, the pressing body 4 approaches the workpiece 2 or moves away from the workpiece 2 by the operation of the first range of the first operating body 5 so that the pressing portion 4 a is positioned at the facing position facing the workpiece 2. The pressing portion 4a is positioned at the facing position by the operation of the second operating body 6 at an arbitrary operating position in the first range of the first operating body 5 while moving in the vertical direction 410 as a direction. The workpiece 2 is moved in the longitudinal direction 410 so as to press or release the workpiece 2.

  That is, when the first operating body 5 is operated in one direction 511 in the first range (see FIGS. 4 and 5), the pressing body 4 is in the longitudinal direction 410 and the pressing portion 4 a is placed on the workpiece 2. It moves in the approaching proximity direction 411 and comes into contact with the workpiece 2 (see FIG. 7). Next, by the operation in one direction 601 of the second operating body 6 (see FIG. 10), the pressing body 4 moves in the pressing direction 413 in which the pressing portion 4a presses the workpiece 2 in the vertical direction 410 (see FIG. 10). 10, see FIG. When the second operating body 6 is operated in the other direction 602 opposite to the one direction 601 (see FIG. 10), the pressing body 4 is in the longitudinal direction 410 and the pressing portion 4a is the workpiece 2 It moves in the pressure release direction 414 to release the pressure and releases the pressure (see FIG. 7). Next, by the operation of the first operating body 5 in the first range in the other direction 512 opposite to the one direction 511, the pressing body 4 is in the longitudinal direction 410 and the pressing portion 4a is the workpiece. It moves to the separation direction 412 which leaves | separates from 2 (refer FIG. 4, FIG. 5).

  By the way, in the illustrated embodiment, the pressing body 4 not only moves in the vertical direction 410 by the operation of the first range of the first operating body 5, but also operates in the second range of the first operating body 5. Accordingly, the horizontal direction 420 intersects the vertical direction 410. Specifically, the pressing body 4 is operated in the second position of the first operating body 5 in a state where the pressing portion 4a is positioned at a separated position away from the workpiece 2 in the vertical direction 410 (the opposing position ( 4 and FIG. 5) and moves in a lateral direction 420, which is a direction toward a non-opposing position (see FIG. 1 and FIG. 2) that deviates from the facing position. That is, when the first operating body 5 is operated in one direction 521 in the second range, the pressing body 4 is moved from the non-opposing position to the lateral direction 420 in the non-opposing position. Moves in the forward direction 421 toward the facing position and reaches the facing position. Subsequently, as described above, the pressing body 4 moves in the proximity direction 411 by the operation of the first operating body 5 in one direction 511 in the first range. On the contrary, when the first operating body 5 is operated in the other direction 512 in the first range, the pressing body 4 moves in the separating direction 412 at the facing position and reaches the separating position. Subsequently, when the first operating body 5 is operated in another direction 522 opposite to the one direction 521 in the second range, the pressing body 4 is moved in the lateral direction 420 from the facing position. Then, it moves in the backward direction 422 from the facing position toward the non-facing position, and reaches the non-facing position.

  Specifically, the clamp device 3 includes a base body 7 attached and fixed to the fixing portion 1 and an intermediate body 8 attached to the base body 7 and to which the pressing body 4 is attached. Therefore, the pressing body 4 moves in the longitudinal direction 410 with respect to the intermediate body 8 by the operation of the first operating body 5 in the first range, and the second operating body 5 of the first operating body 5 By the operation in the range, the pressing body 4 moves in the lateral direction 420 with respect to the intermediate body 8. Then, the intermediate body 8 moves in the longitudinal direction 410 with respect to the base body 7 by the operation of the second operating body 6, so that the pressing body 4 moves in the longitudinal direction 410 together with the intermediate body 8. ing. That is, the movement of the pressing body 4 in the longitudinal direction 410 and the lateral direction 420 by the first operating body 5 and the movement of the pressing body 4 in the longitudinal direction 410 by the second operating body 6 are performed between the pressing body 4 and the base body 7. This is achieved by interposing intermediate 8 between them.

  More specifically, the base body 7 is formed in a columnar shape, and a screw hole 7b is formed in the bottom surface 7a. The base body 7 is fixedly attached to the fixing portion 1 by an attaching bolt (not shown) whose bottom surface 7a comes into contact with the fixing portion 1 and is screwed into the screw hole 7b from the fixing portion 1 side. The base body 7 is provided with a hole 7c extending in the vertical direction 410 (in the illustrated embodiment, the vertical direction perpendicular to the bottom surface 7a). Specifically, the hole 7c includes a lower small-diameter hole 7d and an upper large-diameter hole 7e communicating with the small-diameter hole 7d. The base body 7 is provided with a guide groove 7g for guiding the second operating body 6 (specifically, an operating lever 6b described later) so as to communicate with the large-diameter hole 7e from the side surface 7f. . The guide groove 7g extends in the circumferential direction perpendicular to the longitudinal direction 410 along the side surface 7f (see FIGS. 9 and 12).

  The intermediate body 8 has a columnar shape extending in the longitudinal direction 410, and is attached to the base body 7 such that the lower side thereof is inserted into the large-diameter hole 7 e of the base body 7. The intermediate body 8 includes a screw portion 8 a having an axis extending in the longitudinal direction 410. The screw portion 8 a is a female screw and is screwed into a hole opened on the upper side of the intermediate body 8. Further, a hole 8 b extending in the vertical direction 410 is opened on the lower side of the intermediate body 8. The intermediate body 8 is provided with a pin groove 8d on the side surface 8c. As shown in FIG. 3, the pin groove 8d includes first and second guide grooves 8e and 8f extending in the longitudinal direction 410 and a lateral groove 8g. The first and second guide grooves 8e and 8f are formed continuously in the vertical direction 410 such that the first guide groove 8e is located on the upper side and the second guide groove 8f is located on the lower side. ing. The lateral groove 8g is formed on the circumferential direction side (specifically, on the backward direction 422 side and on the right side in the illustrated embodiment) so as to be continuous from the upper end portion of the first guide groove 8e. ing. Therefore, the intermediate body 8 has a guide pin 7h provided on the base body 7 fitted in the second guide groove 8f and guided to the second guide groove 8f. , It moves in the vertical direction 410 (pressing direction 413 or pressing release direction 414). Further, the intermediate body 8 is provided with a cam groove 8h so as to communicate from the side surface 8c to the hole 8b. The cam groove 8h extends slightly inclined with respect to the guide groove 7g of the base body 7 (see FIGS. 9 and 12).

  The second operating body 6 is attached to the base body 7. The second operating body 6 includes a columnar shaft portion 6a extending in the longitudinal direction 410 and an operating lever 6b. Therefore, the shaft portion 6 a is inserted from the small diameter hole 7 d of the base body 7 to the hole 8 b of the intermediate body 8. On the other hand, the operation lever 6b has a base end that passes through the guide groove 7g of the base body 7 and the cam groove 8h of the intermediate body 8, and is fixed to the shaft portion 6a by a set screw 6c. The second operating body 6 is attached to the base body 7. At this time, cylindrical rollers 6d and 6e are fitted into the operation lever 6b so as to be accommodated in the guide groove 7g and the cam groove 8h, respectively. Thus, the second operating body 6 has a direction orthogonal to the extending direction of the shaft portion 6a (that is, the longitudinal direction 410) with the shaft portion 6a as an axis so that the operation lever 6b is guided by the guide groove 7g. Is rotated. Since the operation lever 6b engages with the cam groove 8h of the intermediate body 8 via the roller 6e, when the operation lever 6b of the second operation body 6 is rotated along the guide groove 7g, the intermediate The body 8 moves in the longitudinal direction 410. That is, the intermediate body 8 provided with the cam groove 8h, the second operating body 6 and the base body 7 constitute a cam mechanism, and by this cam mechanism, the intermediate body 8 operates the second operating body 6 ( In detail, it moves in the vertical direction 410 in conjunction with the operation of the operation lever 6b (see FIGS. 9 to 12). Then, as the intermediate body 8 moves in the longitudinal direction 410, the pressing body 4 attached to the intermediate body 8 moves in the longitudinal direction 410 together with the intermediate body 8. A spring plunger 7i as an elastic pressing member provided on the base body 7 is elastically pressed against the side surface of the shaft portion 6a in the radial direction of the shaft portion 6a. The side surface of the shaft portion 6a is provided with a recess 6f with which the spring plunger 7i is engaged at a start position where the second operating body 6 is operated in the one direction 601. 6 is temporarily held at its starting position (see FIGS. 1, 2, 4, 5, and 7).

  The first operating body 5 is attached to the intermediate body 8. Specifically, the first operating body 5 is screwed into the threaded portion 8a of the intermediate body 8, and the first operating body 5 has one direction 511 in the first range and the intermediate body 8 in the first range. It can be rotated in the direction along the spiral of the threaded portion 8a, which is the other direction 512, and one direction 521 and the other direction 522 in the second range. The first operating body 5 includes a shaft portion 5b in which a male screw 5a that is screwed into the screw portion 8a of the intermediate body 8 is screwed, and an operation knob 5d that is attached and fixed to the shaft portion 5b by a mounting screw 5c. It is configured. Here, the operation knob 5d has a disk shape and is formed on the upper portion of the shaft portion 5b so as to project over the entire side. Further, the shaft portion 5b is formed with a flange portion 5e protruding laterally at a position slightly lower than the operation knob 5d, and the male screw 5a is provided below the flange portion 5e.

  The pressing body 4 is attached to the intermediate body 8 directly or via the first operating body 5. The pressing body 4 includes a pressing member 4b having the pressing portion 4a and a cylindrical member 4c. The pressing member 4b includes a base end portion 4e having a through hole 4d and the pressing portion 4a extending laterally from the base end portion 4e. The base 4e of the pressing member 4b is the upper part of the shaft 5b in the first operating body 5, and the shaft 5b is inserted into the through hole 4d between the operation knob 5d and the flange 5e. In this way, it is attached to the shaft portion 5b. A spring washer 9 (specifically, a wave washer) is inserted between the base end portion 4e and the flange portion 5e. With the spring washer 9, the pressing member 4b is placed on the lower surface of the operation knob 5d. Pressed. Thus, the pressing member 4 b, that is, the pressing body 4 can rotate together with the first operating body 5 and rotate in a direction along the spiral of the screw portion 8 a that becomes the lateral direction 420. The cylindrical member 4c is fixed below the base end portion 4e of the pressing member 4b using a set screw 4f and is fitted on the upper side of the intermediate member 8. The cylindrical member 4c is provided with a guide pin 4g that protrudes inward from the cylindrical member 4c and enters the first guide groove 8e or the lateral groove 8g.

  Accordingly, the pressing body 4 is moved in the first position by the first operation body 5 in the second range by rotating in one direction 521 (clockwise direction in the illustrated embodiment). Co-rotates with the body 5 and rotates and moves from the non-opposing position (see FIGS. 1 to 3) in the forward direction 421 (clockwise in the illustrated embodiment) along the spiral of the screw portion 8a. The counter position is reached, and rotation is stopped at the counter position (see FIGS. 4 to 6). That is, when the pressing body 4 moves from the non-facing position to the facing position, the guide pin 4g moves in the lateral groove 8g from the side opposite to the first guide groove 8e, as shown in FIGS. When the pressing body 4 moves to the first guide groove 8e side (in the illustrated embodiment, it moves in the clockwise direction) and the pressing body 4 reaches the facing position, the guide pin 4g moves to the first guide groove 8e. The pressing body 4 is prevented from rotating at a position facing the groove side surface 8i (left side surface in the illustrated embodiment) opposite to the lateral groove 8g (see FIG. 6). Subsequently, by pressing the first operating body 5 in one direction 511 (clockwise direction in the illustrated embodiment) in the first range, the pressing body 4 is prevented from rotating. When pressed by the operating body 5 (specifically, the operation knob 5d), it moves from the spaced position in the proximity direction 411 (downward in the illustrated embodiment) along the axial center of the screw portion 8a (FIG. 7, see FIG. That is, as shown in FIGS. 6 and 8, the guide pin 4g abuts against the groove side surface 8i of the first guide groove 8e, so that the pressing body 4 is prevented from rotating, and the screw portion of the first operating body 5 is Of the movements along the spiral 8a, only the movement in the vertical direction 410 is transmitted to the pressing body 4, and the pressing body 4 moves in the proximity direction 411. At this time, the guide pin 4g moves in the proximity direction 411 in the first guide groove 8e while being in contact with the groove side surface 8i of the first guide groove 8e.

  On the contrary, the pressing body 4 is rotated at the facing position by the turning operation of the first operating body 5 in the other direction 512 in the first range (counterclockwise direction in the illustrated embodiment). While being stopped, it is pushed by the first operating body 5 (specifically, the flange portion 5e via the spring washer 9), and the separation direction 412 (in the illustrated embodiment, along the axis of the screw portion 8a) It moves upward) to reach the separation position, and the detent is released at the separation position (see FIGS. 4 to 6). That is, as shown in FIG. 8, the guide pin 4g comes into contact with the groove side surface 8j (the right side surface in the illustrated embodiment) of the first guide groove 8e on the lateral groove 8g side, so that the pressing body 4 is Of the movement of the first operating body 5 along the spiral of the screw portion 8a, only the movement in the vertical direction 410 is transmitted to the pressing body 4, and the pressing body 4 moves in the separation direction 412. It will be. At this time, the guide pin 4g moves in the separation direction 412 in the first guide groove 8e in a state of being in contact with the groove side surface 8j of the first guide groove 8e. When the pressing body 4 reaches the separated position, the guide pin 4g passes the abutting groove side surface 8j and faces the lateral groove 8g. Thus, the rotation prevention of the pressing body 4 is released (see FIG. 6). . Subsequently, by pressing the first operating body 5 in another direction 522 in the second range (counterclockwise direction in the illustrated embodiment), the pressing body 4 is Co-rotate and rotate from the facing position in the retracting direction 422 (in the illustrated embodiment, counterclockwise) along the spiral of the screw portion 8a to reach the non-facing position (FIGS. 3). That is, when the pressing body 4 moves from the facing position to the non-facing position, the guide pin 4g moves in the lateral groove 8g from the first guide groove 8e side to the side opposite to the first guide groove 8e. (In the illustrated embodiment, it moves counterclockwise). In addition, the code | symbol in the figure is the cover 10 which covers the base body 7 and the cylinder member 4c.

  Next, the effect of the clamp apparatus 3 which consists of the above structure is demonstrated. According to the clamp device 3, when the work 2 is fixed to the fixing portion 1, the first operation body 5 (specifically, the operation knob 5d) is moved within the second range after the work 2 is arranged at the fixing position. By operating in one direction 521 (clockwise direction) in the second range, the pressing body 4 in the non-opposing position (see FIGS. 1 to 3) is in the lateral direction with the pressing body 4 positioned in the separated position. 420 moves in the forward direction 421 (clockwise direction) from the non-facing position to the facing position and reaches the facing position (see FIGS. 4 to 6). Subsequently, by operating the first operating body 5 (specifically, the operation knob 5d) in the first range in one direction 511 (clockwise direction) in the first range, the pressing body 4 is In the vertical direction 410, the pressing portion 4a moves in a proximity direction 411 (downward) approaching the workpiece 2 and comes into contact with the workpiece 2 (see FIGS. 7 and 8). Next, as shown in FIGS. 9 to 12, the second operating body 6 (specifically, the operating lever 6b) is operated in one direction 601 (clockwise direction) of the second operating body 6. The pressing body 4 moves in the longitudinal direction 410 and moves in the pressing direction 413 (downward) in which the pressing portion 4 a presses the workpiece 2, and presses the workpiece 2. Thus, the workpiece 2 is pressed by the pressing portion 4a of the pressing body 4 and fixed to the fixing portion 1. Here, the first operating body 5 is used until the pressing portion 4a of the pressing body 4 comes into contact with the workpiece 2, and the second operating body 6 is used for the subsequent pressing of the workpiece 2 by the pressing portion 4a. Thus, the stroke of the entire vertical direction 410 of the pressing body 4 is the stroke for bringing the pressing portion 4a by the first operating body 5 into contact with the work 2, and the pressing portion 4a by the second operating body 6 is set to the work 2. Since it is separated into strokes for pressing, each stroke can be set appropriately. As a result, the work 2 can be firmly pressed and fixed, and the work 2 having various heights such as a work having a large dimensional error can be handled.

  On the other hand, in order to remove the workpiece 2 from the fixed portion 1, first, as shown in FIGS. 9 to 12, the second operating body 6 (specifically, the operating lever 6b) is moved to the second operating body. 6 is operated in the other direction 602 (counterclockwise direction), the pressing body 4 moves in the longitudinal direction 410 and in the pressing release direction 414 (upward direction) in which the pressing portion 4a releases the pressing of the workpiece 2. Then, the pressing is released (see FIGS. 7 and 8). Next, by operating the first operating body 5 (specifically, the operation knob 5d) in the first range in the other direction 512 (counterclockwise direction) in the first range, the pressing body 4 is The pressing portion 4a moves in the vertical direction 410 and moves away from the workpiece 2 in the separation direction 412 (upward), and reaches the separation position (see FIGS. 4 to 6). Subsequently, by operating the first operating body 5 (specifically, the operation knob 5d) in the second range in the other direction 522 (counterclockwise direction) in the second range, the pressing body 4 is Then, it moves in the lateral direction 420 in the backward direction 422 (counterclockwise direction) from the facing position to the non-facing position, and reaches the non-facing position (see FIGS. 1 to 3). Therefore, the workpiece 2 is removed from the fixed portion 1. Thus, when placing the workpiece 2 on the fixed portion 1 or removing the workpiece 2 from the fixed portion 1, the pressing body 4 is in a non-opposing position that deviates from the opposing position with respect to the workpiece 2. 4 is not disturbed. Therefore, the arrangement and removal of the workpieces 2 can be easily performed.

  In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the fixing portion 1 may be an MC pallet, a machine table, other tables, etc. in addition to the fixture base. And the to-be-fixed object may be a jig | tool, a fixture, a metal mold | die, etc., for example, not the workpiece | work 2.

  Further, in this clamping device 3, the first operating body 5 is operated in the first range or the second range, so that the pressing body 4 moves in the vertical direction 410 or the horizontal direction 420. The operation in the second range of 5, the accompanying movement of the pressing body 4 in the lateral direction 420, and the structure related to the movement may be omitted. That is, the workpiece 2 may be attached and detached when the pressing body 4 is located at the facing position and the separated position.

  The operation of the first operating body 5 in one direction 511 in the first range, the operation in one direction 521 in the second range, and the operation in one direction 601 of the second operating body 6 are: The operation directions need not be the same, and any or all of the directions may be different. Similarly, the operation of the first operating body 5 in the other direction 512 in the first range, the operation in the other direction 522 in the second range, and the operation in the other direction 602 of the second operating body 6 The operation directions are not necessarily the same, and any or all of the directions may be different.

  Further, the structure in which the pressing body 4 is moved in the vertical direction 410 by the first operating body 5 is not limited to using a screw mechanism, but may be a structure using a cam mechanism or the like. Further, the shape of the operation knob 5d in the first operating body 5 may be a star shape, a cross shape or the like in addition to the circular shape. The operation knob 5d may be directly operated by hand, but may be operated using a tool such as a spanner or a wrench.

  Further, the structure in which the pressing body 4 is moved in the vertical direction 410 by the second operating body 6 is not limited to using a cam mechanism but may be a structure using a screw mechanism or the like. Further, as the operation lever 6b in the second operation body 6, a lever having a mechanism for controlling torque may be used.

It is a top view of a clamp device when a press object is located in a non-opposition position of one embodiment of this invention. Similarly, it is sectional drawing by the AA in FIG. Similarly, it is an expanded view of the groove | channel for pins of an intermediate body. It is a top view of a clamp device when a press body is located in a counter position and a separation position. Similarly, it is sectional drawing by the BB line in FIG. Similarly, it is equivalent to FIG. FIG. 6 is a view corresponding to FIG. 5 when the pressing body is in an opposing position and abuts against a workpiece. Similarly, it is equivalent to FIG. It is an expanded view of a guide groove and a cam groove before a press body presses a workpiece | work. It is a top view of a clamp device when a pressing body presses a work. Similarly, it is sectional drawing by CC line in FIG. Similarly, it is equivalent to FIG. It is a side view of the clamp apparatus of the same state as FIG. 1 except the cover which covers a base body and a cylinder member. It is a perspective view of the clamp apparatus of the same state as FIG. It is sectional drawing which shows the conventional clamp apparatus.

Explanation of symbols

1 Fixing part 2 Workpiece (fixed object)
DESCRIPTION OF SYMBOLS 3 Clamp apparatus 4 Press body 4a Press part 5 1st operation body 6 2nd operation body 7 Base body 8 Intermediate body 8a Screw part 410 Vertical direction 411 Approaching direction 412 Separating direction 413 Pressing direction 414 Press releasing direction 420 Lateral direction 421 Forward direction 422 Backward direction 511, 521, 601 One direction 512, 522, 602 Other direction

Claims (6)

A clamping device for fixing an object to be fixed to a fixing part,
A pressing body having a pressing portion that fixes the object to be fixed, and first and second operating bodies that are manually operated;
The pressing body is positioned at a facing position where the pressing portion faces the object to be fixed and moves closer to the object to be fixed or separated from the object to be fixed by an operation in the first range of the first operating body. The pressing portion is positioned at the facing position by operating the second operating body at an arbitrary operating position in the first range of the first operating body. Move in the longitudinal direction to press the object to be fixed or release the pressure,
By the operation of the first operating body in one direction in the first range, the pressing body moves in the vertical direction and in the proximity direction in which the pressing portion approaches the object to be fixed. Then, the pressing body moves in the pressing direction in which the pressing portion presses the fixed object in the vertical direction by an operation in one direction of the second operating body.
By the operation in the other direction of the second operating body, the pressing body moves in the longitudinal direction and the pressing portion releases the pressing of the object to be fixed and releases the pressing. Next, by the operation of the first operating body in the other direction in the first range, the pressing body moves in the vertical direction and the pressing portion moves away from the object to be fixed. A clamping device. The pressing body is directed to or opposed to the facing position in a state where the pressing portion is located at a separated position away from the fixed object in the vertical direction by an operation of the second range of the first operating body. Moving in a horizontal direction intersecting the vertical direction, which is a direction toward a non-opposing position out of position,
When the first operating body is operated in one direction in the second range, the pressing body is moved from the non-facing position to the lateral position and from the non-facing position to the facing position. Moving in the forward direction toward the first position, reaching the opposite position, and then, by the operation of the first operating body in one direction in the first range, the pressing body moves in the proximity direction,
By the operation of the first operating body in the other direction in the first range, the pressing body moves in the separation direction to reach the separation position at the opposing position, and subsequently, the first operation body By the operation of the body in the other direction in the second range, the pressing body moves from the facing position in the backward direction toward the non-facing position from the facing position in the lateral direction, The clamping device according to claim 1, wherein the clamping device reaches a non-opposing position. The clamp device includes a base body attached and fixed to the fixing portion, and an intermediate body attached to the base body and to which the pressing body is attached.
By the operation of the first operating body in the first range, the pressing body moves in the longitudinal direction with respect to the intermediate body,
The operation of the second operation body causes the intermediate body to move in the vertical direction with respect to the base body, so that the pressing body moves in the vertical direction together with the intermediate body. 2. The clamping device according to 1. The clamp device includes a base body attached and fixed to the fixing portion, and an intermediate body attached to the base body and to which the pressing body is attached.
By the operation of the first operating body in the first range, the pressing body moves in the longitudinal direction with respect to the intermediate body, and the operation of the first operating body in the second range is performed. The pressing body moves in the lateral direction with respect to the intermediate body,
The operation of the second operation body causes the intermediate body to move in the vertical direction with respect to the base body, so that the pressing body moves in the vertical direction together with the intermediate body. 2. The clamping device according to 2. The intermediate body includes a screw portion having an axial center extending in the longitudinal direction,
The first operating body is screwed into the threaded portion, and with respect to the intermediate body, one direction and the other direction of the first operating body in the first range, and the second range. Can be rotated in a direction along the spiral of the threaded portion, which is one direction and the other direction in
The pressing body can rotate in a direction along the spiral of the screw portion, which is the lateral direction, together with the first operating body,
By the rotation operation of the first operating body in one direction in the second range, the pressing body rotates together with the first operating body at the separated position, and from the non-facing position, the Rotate and move in the forward direction along the spiral of the threaded portion to reach the facing position, stop at the facing position, and then rotate the first operating body in one direction in the first range. By the moving operation, the pressing body is pushed by the first operating body while being prevented from rotating, and moves from the separated position in the proximity direction along the axial center of the screw portion,
By the rotation operation of the first operating body in the other direction in the first range, the pressing body is pushed by the first operating body at the facing position while being prevented from rotating, and the screw portion And move to the separation direction along the axis of the first position to reach the separation position, and the detent is released at the separation position. Subsequently, the rotation of the first operating body in the other direction in the second range is performed. Due to a moving operation, the pressing body rotates together with the first operating body, rotates from the facing position in the backward direction along the spiral of the screw portion, and reaches the non-facing position. The clamping device according to claim 4. 6. The clamping device according to claim 3, wherein the intermediate body moves in the longitudinal direction in conjunction with an operation of the second operating body by a cam mechanism.

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