JPH0544051Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a workpiece clamping tool.

Conventionally, this type of C-type clamping tool is constructed so that the main body, extension arm, and clamping threaded rod are all on the same plane, and is used to clamp many workpieces and perform various processing. However, traditional C
Since the mold clamping tool has a flat body, the area required to press the workpiece onto the workbench is a relatively small vertical section, which may damage the workbench and make it difficult to clamp the workpiece. I can't.

The purpose of this invention is to have horizontal and vertical clamping functions under the fixation of the C-shaped body, and to be able to press the workbench with the side surface with the largest area, and to clamp the workpiece relatively advantageously. The purpose is to provide a clamping tool.

The workpiece clamping tool of the present invention has extension arms extending perpendicularly to the main body on both side arms of a C-shaped main body, and a screw hole is bored at the end of one of the extension arms, and the screw hole is screwed into the end of one of the extension arms. A threaded rod having a moving chuck at one end and a driving head at the other end is screwed into the hole;
The other extension arm is fitted with a fixed chuck or has a threaded hole into which is screwed a threaded rod having a movable chuck at one end and a drive head at the other end. The C-shaped body has horizontal and vertical clamping functions while the position is fixed, and the clamping depth and clamping direction can be adjusted, allowing clamping in two or three directions, making it suitable for a wide range of applications. It can be applied to clamping workpieces.

Next, embodiments of the clamping tool of the present invention will be described in detail with reference to the accompanying drawings.

1 to 1B show an embodiment of the clamping tool of the present invention, FIG. 1 is a perspective view thereof, and FIG.
The figure is a plan view of FIG. 1, and FIG. 1B is a side view of FIG. The lateral arms 101, 101' include lateral arms 101, 101'.
Extension arms 102 and 102' are provided which extend parallel to each other perpendicularly to the direction in which the extension arms 1 and 101' are extended, and a screw hole 104 is provided at the end of the extension arm 102 and extends parallel to the main body 100. 104
A screw threaded rod 105 is screwed into the screw rod 105, and a moving chuck 106 is attached to one end of the screw rod 105.
At the other end there are at least one set of adjustable coupling holes 202, 2 at the ends of the lateral arms of the drive head, respectively.
03 is provided.

One semi-enclosed L-shaped extension arm 204 is formed by punching out a molded material, and its end is fitted into one end of the C-shaped main body 201 in an adjustable manner to adjust the extension and contraction of the clamping position or to clamp the workpiece. A connecting hole 206 is formed in the extension arm 204, and the extension arm 204 can be connected to the main body 201 with a bolt 207 and a nut 208. A screw thread is carved into the circular head hole at the end to form a screw hole 209, a threaded rod 210 is screwed into the screw hole 209, a drive head 211 is attached to one end of the screw rod, and a drive head 211 is attached to the other end. is equipped with a moving chuck 212.

The other half-enclosed L-shaped extension arm 205 is formed by punching out a molded material, and its end is fitted into the other end of the C-shaped body 201 in an adjustable manner to adjust the extension and contraction of the clamping position or to clamp the workpiece. The extension arm 205 is formed with a coupling hole 213, and the extension arm 205 can be coupled to the main body 201 with a bolt 214 and a nut 215. The head 216, which has a circular shape, can be provided with a covering surface 217 to form a fixed chuck.

Two L-shaped extension arms having the same threaded rod can be fixed and caulked at both ends of the C-shaped main body 201 of the above embodiment, and movable chucks are disposed inside each other on the two extension arms. It can also be arranged on the outside.

Fig. 3 shows an example of a clamping tool in which the clamping position is not adjustable.
The lateral arms 302 and 303 on both sides of 01 are curved in the same way, and the end of the extension arm attached to the end thereof is formed with a threaded hole 304, and the threaded hole 304 of the extension arm is provided with a moving chuck 305 at one end. a threaded rod 30 having a drive head 306 at the other end.
7 is screwed in.

Lateral arms 302 and 303 on both sides of the main body 301
can be fitted with an extension arm of the structure having a fixed chuck 308 on one side, which fixed chuck 308 is connected to the moving chuck 305 of the threaded rod 307.
When the movable chuck 305 of the threaded rod 302 is directed inward to perform a clamping action, it can be installed on the inside, and when the movable chuck 305 of the threaded rod 302 is directed outside to perform an external support action, it can be installed on the outside.

4 to 4C are examples of a position-adjustable three-way clamping tool; FIG. 4 is an exploded perspective view thereof; FIG. 4A is a plan view taken from line A-A in FIG. 4B; 4B is a longitudinal sectional side view taken along line BB in FIG. 4C, and FIG. 4C is a front view of FIG. 4.

The main body 401 has a protrusion 402 that protrudes upward in the center of the main body 401 in the shape of a bridge, and the bridge-like protrusion 402 in the center of the main body 401 is attached to the side arms on both sides of the protrusion 402 .
Both extension arms 403, 40 protrude in the same direction as
4, one extension arm 403 is provided with a fixing chuck 405, the other extension arm 404 is provided with a screw hole 411, and a threaded rod 40 is provided in the screw hole 411.
6 is screwed in to form a clamping function, and the bridge-like protrusion 402 in the center has a toothed part 407 formed inside thereof, and a sliding block 408 provided with a threaded rod 409 is engaged with the toothed part 407. When assembled, the sliding block 408 forms a convex tooth portion 410 on the inside of its main body, and the convex tooth portion 410 engages with a tooth-like portion 407 formed on the inside of the bridge-like protrusion 402 in the central portion, and performs a positioning function. have.

The main body 401 has a C-shape, and the bridge-like protrusion 402 at the center has a height that allows the sliding block 408 to be disposed, and the convex tooth portion engages with the toothed portion 407 to prevent the sliding block 408 from being displaced. An extension arm 403 that extends in the same way as the bridge-like projection 402,
404 protrudes in the same direction as the bridge-like protrusion 402, one extension arm 404 has a screw hole 411, and the other extension arm 403 has a fixing chuck 4.
05, a threaded rod 406 is screwed into the threaded hole 411, a drive head is attached to one end of the threaded rod 406, and a moving chuck 412 is provided at the other end.

The bridge-shaped protrusion 402 of the main body 401 has a screw hole 41
The other extension arm 102' has a fixed chuck 103 with a flat surface on the inside of the end thereof, and is clamped against the movable chuck 106, or is clamped against the one extension arm 102'.
02 end, a threaded rod having a moving chuck and a drive head can be installed.

FIG. 1C is a perspective view showing the process of clamping a workpiece using the clamping tool shown in FIGS. 1 to 1B. It is fixed on a flat surface and applied to clamp vertical plate workpieces perpendicular to the horizontal plate.
This clamping could not be done with conventional devices.

The main body 100 and the side arms 101 are provided with through holes or threaded holes into which bolts or pins can be inserted to secure the clamping tool to the workpiece.

What is shown in Fig. 2 is an exploded perspective view of a C-shaped clamping tool manufactured by punching, Fig. 2A is a plan view of Fig. 2, and Fig. 1B is a side view of Fig. 1. The C-shaped main body 201 is made of a flat pipe, and has a threaded hole 413 into which is screwed a threaded rod 409 having a drive head 414 at one end and a moving chuck 415 at the other end. The protrusion 410 protrudes toward the opening side, engages with the teeth 407 of the protrusion 402 of the main body for positioning, provides a positioning piece 416 on the opening side, and locks the shape of the sliding block with a bolt 417 or other method. A positioning piece 416 is coupled to the opening side of 408 to form a sealing effect.

After the sliding block 408 is sealed, the width from the internal convex teeth 410 to the sealing surface 418 is equal to the width of the main body 401.
The width of the bridge-like protrusion 402 should be slightly larger than the width of the bridge-like protrusion 402 , so that the sliding block 408 can be slid and adjusted on the protrusion 402 .

The structure of the above position adjustable three-way clamping tool is different from the conventional one with all one clamping plane, which increases its applicability and eliminates the limitations of workpiece size and operation space. do not have.

Next, a modified example of a two-way C-type clamping tool or a three-way C-type clamping tool in which the clamping depth and clamping direction can be adjusted will be described. Figure 5 is a perspective view of a three-way clamping tool with adjustable clamping depth and clamping direction, Figure 5A is a perspective view of a C-type clamping tool configured for two-way clamping, and Figure 5B is an adjustment tool. Perspective view of an embodiment with a telescoping extension arm and a C-shaped body, fifth
Figure C is a perspective view of an embodiment with adjustable clamping depth and clamping pitch, and Figure 5D is a perspective view of an embodiment with adjustable clamping depth.

A flat pipe 501 having a flat hole 502 is bent into an L shape, a through hole 503 is formed horizontally on the flat pipe 501, and an extension arm 506 that fits into the flat hole 502 of the flat pipe 501 has an A clamping head 505 having a screw hole 504 is provided, a positioning hole 507 is formed, and a through hole 50 is provided.
By adjusting the bolt 508 and nut 509 through 3, the extending length of the clamping head 505 can be changed, and its clamping depth can be changed.

A threaded rod 510 is provided on the clamping head 505,
A threaded rod 510 has a drive head 511 at one end;
A moving chuck 512 for pressing is provided at the other end so that a workpiece can be pressed.

The other flat pipe 5 having a flat hole 522
21 is curved in an L shape, and is a flat pipe 521
At the top there is a clamping head 523 and a clamping threaded rod 52.
4 or an extension arm with a fixed attachment 525 is provided.

The flat pipes having the above-mentioned pair of flat holes can be made into an integral structure, or the flat pipes 501 and 521 having the flat holes can be curved into an L shape, and the clamping heads 505 and 523 of both pipes can be bent into an L shape. A support rod 53 is provided at the end not provided with an extension arm having a
3 is installed, a coupling hole 534 is provided on the support rod 533, and the support rod 533 is fitted into the hole of the L-shaped flat pipe. It is attached so that it can be mounted with a clamp and the clamping pitch can be adjusted. A parallel sliding groove 542 having a toothed part 541 on the inside is formed in the center of this intermediate support rod 533, and both ends of the support rod 533 are made into a flat shape, and a coupling hole 534 is formed to form an L-shaped flat pipe. 501,5
21 and then caulked together or connected with bolts and nuts, and a U-shaped sliding block 54 having a threaded rod 543 in the intermediate sliding groove 542.
4 are arranged, and convex toothed portions 545 are formed on both sides of the U-shaped sliding block 544, and the convex toothed portions 545 are engaged with the toothed portions 541 of the sliding groove 542 for positioning.

The above-mentioned adjustable coupling structure with bolts and nuts allows you to change the extension length of the extension arm by removing the bolt and nut, change the clamping depth, and change the clamping pitch. It is also possible to change the clamping direction so that the clamping direction is outwardly supported.

The L-shaped curved flat pipe having the flat hole into which the above-mentioned extendable extension arm fits can also be made into an integral type, and as shown in FIG. It has a C-type clamping structure, and the 5th B
As shown in the figure, a through hole is formed in the L-shaped curved part of the U-shaped pipe, which has a flat hole into which the extendable arm is fitted. As shown in Figure 5C, a cross-shaped two-way through hole is provided to allow adjustment of the clamping depth and clamping distance. The two-way or three-way clamping structure described above can be provided with a locking chuck on one of the extension arms, as shown in FIG. 5D.

Since the clamping tool of the present invention has the above-mentioned configuration, it has horizontal and vertical clamping functions, can be applied to a wide range of clamping operations, and can adjust the clamping depth and distance. The direction can be adjusted and the clamping direction can be adjusted, and it has a two-way or three-way clamping function, which can expand the actual application function.

[Brief explanation of the drawing]

The figures show an embodiment of the clamping tool according to the present invention. Figure 1A is a plan view of Figure 1, Figure 1B is a side view of Figure 1, and Figure 1C is the clamping tool shown in Figure 1. A perspective view showing the clamping state of the mounting tool.
An exploded perspective view of the embodiment, Fig. 2A is a plan view of Fig. 2, Fig. 2B is a side view of Fig. 2, Fig. 3 is a perspective view of the third embodiment, and Fig. 4 shows clamping in three directions. A perspective view of the embodiment having the function, FIG. 4A is the same as A- in FIG. 4B.
A plan view as seen from line A, FIG. 4C is a front view of FIG. 4, and FIG. 5 is a perspective view of an embodiment having a three-way clamping function that allows adjustment of clamping depth and clamping distance. FIG. 5A is a perspective view of a modified C-shaped clamp body of FIG. 5 which has a clamping function in two directions, and FIG. 5B is a perspective view of a fifth C-shaped clamp body having an extendable extension arm and a through hole formed in the C-shaped body. FIG. 5C is a perspective view of a modification of FIG. 5 having an extension arm with adjustable clamping depth and clamping pitch; FIG. 5D is a perspective view of a modification of FIG. 5 with a fixed chuck. It is a perspective view of a modification of .

Claims (1)

[Claims for Utility Model Registration] (1) The lateral arms on both sides of the C-shaped main body are provided with extending arms extending parallel to each other perpendicularly to the extending direction of the lateral arms, and at the end of one extending arm. A threaded hole is drilled into the threaded hole, into which is screwed a moving chuck at one end and a threaded rod having a driving head at the other end, and a fixed chuck is attached to the end of the other extension arm, or a screw is screwed into the threaded hole. A hole is drilled and a movable chuck is attached to one end of the screw hole.
A clamping tool that screws together a threaded rod with a drive head on the other end. (2) Attach extension arms perpendicular to the lateral arms on both sides of the main body, and provide a screw hole extending parallel to the main body at the end of one of the extension arms,
A threaded clamping rod is screwed into the threaded hole, the inner end of the threaded clamping rod is provided with a moving chuck, its outer end is provided with a drive head, and the end of the other extension arm is provided with a fixing member facing inward. A clamping tool according to claim 1 of the utility model registration claim, which is equipped with a chuck. (3) The C-shaped main body is formed of a flat pipe, each end of which is formed with at least one coupling hole, and one semi-enclosed L-shaped extension arm is formed by punching and molding it with a shape material. Fit the end into one end of the C-shaped body, connect it to the body with a bolt and nut through the coupling hole so that the extension arm can be adjusted in extension and contraction and the clamping direction can be selected, and the other end is connected to the circular head of the C-shaped body. A screw hole is formed, a pressing threaded rod is screwed into the screw hole, a driving head is provided at one end of the pressing threaded rod, a moving chuck is provided at the other end, and the other half-enclosed L-shaped extension arm is punched out and molded using a shape material. A utility model in which the end thereof is adjustable and fitted to the other end of the C-shaped body, and is connected to the body with a bolt and nut through a coupling hole, and a fixing chuck is formed on the head of the other end. A clamping tool according to registered claim 1.