JP7349140B2 - clamp device - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies (1) July 31, 2019 to August 3, 2019 Published at the 6th Press, Sheet Metal, and Forming Exhibition MF-TOKYO 2019 (2) July 31, 2019 to August 3, 2019 Distributing Niigata Kikai Co., Ltd.'s own catalog

The present invention relates to a clamp device that is attached to a base of a processing device via a T-groove and fixes a member to be fixed, such as a workpiece or a mold, set on the base.

As this type of clamp device, there is a clamp device as disclosed in Patent Document 1, for example.

This clamp device includes a main body, a T-groove engaging portion provided at the bottom of the main body that engages with a T-groove provided on the base of a processing device such as a press machine, and a clamp metal support provided at the top of the main body. The main body is attached to the base by engaging the T-groove engaging part with the T-groove of the base of the processing device. At the same time, the tip part (holding part) of the clamp fitting is set at the fixing point of the fixed member such as a mold set on the base, and the clamp fitting is activated by supplying hydraulic pressure to the drive part. The holding portion presses the member to be fixed, and the holding portion presses and fixes the member to be fixed.

By the way, members to be fixed such as molds that are fixed using such a clamp device have various heights (thicknesses) and shapes.

Therefore, since the clamping height positions vary, conventionally, clamping devices of various heights (lengths) that are compatible with various fixed members with different clamping height positions have to be prepared. Having a large number of clamping devices increases costs, and has the problem of complicating management and work.

Publication number 2-28000

The present invention was made in view of the current situation, and provides a clamping device that can be applied to fixing members of various heights (thicknesses) without having to have multiple clamping devices. The purpose is to

The gist of the present invention will be explained with reference to the accompanying drawings.

This clamping device fixes a fixed member 40 such as a workpiece or a mold set on a base 30 of a processing device, and includes a clamp main body 1 provided with a clamp portion 4 for clamping the fixed member 40, and A plurality of main body length extension parts 2 of different lengths are connected to the clamp main body part 1 in a detachable and replaceable manner, and each of the main body length extension parts 2 is connected to the lower end part of the clamp main body part 1. Further, a T-groove engaging portion 3 is provided at the lower end of each main body length extension portion 2 to be engaged with a T-groove 31 provided in the base plate 30, and the clamp body The part 1 is connected to the main body length extension part 2 so as to be swingable in the left and right direction, and is rotated in the desired left and right direction with respect to the main body length extension part 2 by tightening the fixing member 20 and the screw 21. This invention relates to a clamp device characterized in that it is configured to be fixed in the direction of.

The clamp device according to claim 1, further comprising a plurality of the T-slot engaging portions 3 having different shapes, which are connected to the main body length extension portion 2 in a detachable and replaceable manner, and the plurality of T-slot engaging portions The present invention relates to a clamp device characterized in that the T-groove engaging portion 3 selected from the T-groove engaging portions 3 is connected to the lower end portion of the main body length extension portion 2.

Since the present invention is configured as described above, it is possible to easily select and attach the clamp main body of the length suitable for the member to be fixed, and to adjust the clamp body to various heights (thicknesses and ) This is an unprecedented and revolutionary clamping device that can be applied to fixing members to be fixed.

FIG. 2 is a perspective view showing this embodiment. It is an explanatory sectional view showing a clamp body part (at the time of non-operation) of a present example. It is an explanatory sectional view showing a clamp body part (during operation) of a present example. It is an explanatory exploded perspective view showing a present example. FIG. 3 is an explanatory exploded cross-sectional view showing a continuous portion of the clamp body and the body length extension portion of the present embodiment. FIG. 6 is an explanatory diagram of the swinging motion of the clamp main body of the present embodiment. FIG. 3 is an explanatory sectional view showing a continuous portion between the clamp body and the body length extension portion of the present embodiment. FIG. 3 is an explanatory diagram showing a state in which the present embodiment is used (a state in which a long main body length extension part is attached). FIG. 3 is an explanatory diagram showing a state in which the present embodiment is used (a state in which a short main body length extension portion is attached). FIG. 3 is an explanatory diagram showing the usage state of the present embodiment (the state in which the T-groove engaging portion is fitted into the T-groove). FIG. 11 is an explanatory diagram showing a usage state of this embodiment (a state of fitting into a T-groove when a T-groove engaging portion different from that in FIG. 10 is attached).

Embodiments of the present invention that are considered suitable will be briefly described by showing the effects of the present invention based on the drawings.

In the present invention, the height (length) can be changed by replacing the main body length extension part 2, so that the height position of the clamp part 4 when attached to the base 30 of the processing device, in other words, The distance between the upper surface of the base 30 and the clamp part 4 can be changed.

That is, the present invention selects the main body length extension part 2 having a length suitable for the height (thickness) of the member to be fixed 40 and connects it to the clamp main body part 1, thereby making it suitable for the member to be fixed 40. Therefore, the fixed member 40 of various heights (thicknesses) can be fixed with one clamp device of the present invention, and therefore, it is not necessary to use a large number of clamp devices as in the past. There is no need to keep the clamp device, and the cost of the clamp device can be reduced, and the clamp device can be easily managed and work efficiency is improved.

Specific embodiments of the present invention will be described based on the drawings.

The present embodiment is a clamping device that fixes a member 40 to be fixed, such as a processing member or a mold, set on a base 30 of a processing device (for example, a press device).

Specifically, this embodiment includes a clamp section 4 that clamps the member to be fixed 40, a clamp drive section 5 that clamps the clamp section 4, and a pressure medium applied to operate the clamp drive section 5. The pressure medium is pressurized by an operator's manual operation of the pressurization device 8, and the clamp drive unit 5 is actuated by the pressing action of the pressurized pressure medium to cause the clamp part 4 to move. This is a manual clamp device that operates the clamp.

In addition, this embodiment includes a clamp main body 1 having the clamp part 4, the clamp drive part 5, and the pressurizing device 8, and a plurality of clamp parts having different lengths connected to the clamp main body 1 in a detachable and replaceable manner. , and clamps the main body length extension part 2 having a length suitable for the fixed member 40 to be fixed to the base 30 selected from the plurality of main body length extension parts 2 having different lengths. It is connected to the lower end of the main body 1.

Furthermore, this embodiment includes a plurality of T-groove engaging parts 3 connected to the clamp main body part 2 in a detachable and replaceable manner, and a base plate 30 selected from the plurality of T-groove engaging parts 3 is provided. A T-groove engaging portion 3 having a shape suitable for the shape of the T-groove 31 formed in the clamp body portion 2 is connected to the lower end portion of the clamp body portion 2.

That is, this embodiment includes a clamp main body 1 having a clamp part 4, a clamp driving part 5, and a pressurizing device 8, a plurality of clamp main bodies 2 having different lengths, and a plurality of T groove engaging parts having different shapes. A clamp body 2 having a length suitable for a fixed member 40 to be fixed to a base 30 selected from a plurality of clamp bodies 2 having different lengths is connected to the lower end of the clamp body 1. At the same time, a T-groove engaging part 3 having a shape suitable for the shape of the T-groove 31 of the base 30 selected from the plurality of T-groove engaging parts 3 is connected to the lower end of the clamp body part 2. It is what it is.

Each component of this embodiment will be described in detail below.

As shown in FIGS. 1 and 2, the clamp body 1 includes a clamp section 4 for clamping a member to be fixed 40, a clamp drive section 5 for clamping the clamp section 4, and a clamp drive section 5 for operating the clamp drive section 5. The pressurizing device 8 pressurizes the pressure medium.

The clamp part 4 is configured as a lever type, and is swingably provided on a clamp support part 14 that is integrally provided at the upper part of the clamp body part 1.

Further, both the clamp drive unit 5 and the pressurizing device 8 are housed inside the clamp body 1 and communicate with each other via a pressure medium passage 15 through which a pressure medium flows.

Specifically, the clamp drive unit 5 includes a cylinder part 6 and a piston 7 provided within the cylinder part 6 so as to be able to reciprocate in the vertical direction. 7 is pressed and protrudes upward, and the base end portion of the clamp portion 4 located above the piston 7 is pushed upward, thereby causing the clamp portion 4 to perform a clamping operation.

Further, the pressurizing device 8 includes a cylinder portion 9, a piston 10 provided within the cylinder portion 9 so as to be able to reciprocate in the front-rear direction (horizontal direction), and a pressurized fluid inside the cylinder portion 9 by pushing the piston 10. When the pressurizing operation part 11 is operated, the piston 10 moves forward and presses the pressure medium in the cylinder part 9, and the pressed pressure medium It is configured to press the piston 7 of the clamp drive section 5 described above through the pressure medium flow path 15.

Specifically, the pressurizing operation part 11 consists of a female screw part 12 screwed into the clamp body part 1 and a male screw part 13 screwed into the female screw part 12. is provided at the end of the piston 10, and is configured so that the piston 10 moves forward as the male threaded portion 13 is screwed in, thereby pressurizing the pressure medium within the cylinder portion 9.

That is, in this embodiment, as shown in FIG. 3, the pressurizing operation part 11 of the pressurizing device 8, specifically, the male threaded portion 13, is screwed in using a tool such as a wrench, and the pressurizing device 8 is operated. By moving the piston 10 forward and pressurizing the pressure medium in the cylinder section 9 of the pressurizing device 8 and the pressure medium flow path 15, this pressurized pressure medium flows into the cylinder section 6 of the clamp drive section 5. The piston 7 of the clamp drive unit 5 is pressed, and the piston 7 of the clamp drive unit 5 moves upward due to the pressing action of this pressure medium, so that the base end of the clamp unit 4 moves upward. The distal end portion of the clamp portion 4 is configured to rotate downward and clamp the member to be fixed 40.

Further, as shown in FIGS. 4 and 5, a connecting part 16 is provided at the lower part of the clamp main body part 1 for connecting with the main body length extension part 2. It is connected to the main body length extension part 2 in a detachable manner, and as shown in FIG. It is composed of

Specifically, the continuous portion 16 is composed of a rotation shaft portion 17 and a retaining portion 18 formed with a larger diameter than the rotation shaft portion 17, and is vertically provided at the bottom of the clamp body portion 1. ing.

More specifically, at the boundary between the rotating shaft portion 17 and the retaining portion 18, a fixing member 20 for fixing the continuous portion 16 to the main body length extension portion 2 is attached to the outside to be press-fitted and locked. An inclined surface portion 19 is provided that slopes downward.

Further, the main body length extension part 2 connected to the lower part of the clamp main body part 1 is provided with an upper continuous receiving part 23 on the upper side into which the above-mentioned continuous part 16 of the clamp main body part 1 fits. At the same time, a fixing member 20 that irremovably fixes the connecting portion 16 that fits into the upper connecting receiving portion 23 is removably provided.

In this embodiment, as shown in FIGS. 5 and 7, the fixing member 20 is removed from the main body length extension part 2, and the connecting part 16 of the clamp main body part 1 is fitted into the upper connecting part 23 from the horizontal direction. After that, the fixing member 20 is attached, and by tightening and fixing the fixing member 20 with the screw 21, the inclined surface locking part 22 provided on the fixing member 20 is pressed and locked to the inclined surface part 19 of the continuous part 16, Due to the press-locking action of the inclined surface locking portion 22 on the inclined surface portion 19, the connecting portion 16 (retardant portion 18) is pressed forward and downward, and becomes in a press-locked state with the main body length extension portion 2. The clamp main body part 1 is configured to be connected and fixed to the main body length extension part 2. In this embodiment, before the fixing member 20 is tightened and fixed, the clamp main body 1 is in a state where it can swing in the left and right direction with respect to the main body length extension part 2, and in this state, the clamp main body 1 After aligning the orientation of the portion 1 to a desired orientation, the fixing member 20 is tightened and fixed, so that the clamp body portion 1 and the body length extension portion 2 are connected and fixed.

Further, as shown in FIG. 4, the main body length extension part 2 of this embodiment is provided with a lower continuous receiving part 24 in which the T-slot engagement part 3 is successively provided.

Specifically, the lower continuous receiving part 24 is formed in a shape into which the continuous part 25 provided on the T-slot engagement part 3 can fit, and is connected to the lower continuous receiving part 24. The T-slot engaging portion 3 is formed along the left-right direction perpendicular to the longitudinal direction of the T-slot engaging portion 3, and is configured such that the T-slot engaging portion 3 is fitted from the left-right direction.

More specifically, the main body length extension part 2 of this embodiment is divided into two parts on the lower side in the front-rear direction, and furthermore, a screw 26 is installed between the two divided parts, and the screw member is tightened. When operated, the divided portions are configured to bend inward and approach each other, and the lower continuous receiving portion 24 of this embodiment is configured to straddle these two divided portions. is formed.

That is, the main body length extension part 2 of this embodiment is divided into two divided parts with the T-slot engaging part 3 (the connecting part 25 of the T-slot engaging part 3) fitted into the lower continuous receiving part 24. By tightening the screw 26 installed between them, the divided parts flex and move toward each other, and the lower continuous receiving part 24 clamps the T-slot engagement part 3 and locks it in pressure contact, and this lower part The structure is such that the T-groove engaging portion 3 can be firmly connected and fixed to the main body length extension portion 2 by clamping and press-fitting the connecting receiving portion 24 to the T-groove engaging portion 3.

Further, in this embodiment, regarding the main body length extension portion 2, a plurality of main body length extension portions 2 having different lengths are provided.

That is, in this embodiment, as shown in FIGS. 8 and 9, the height (length) can be changed by replacing the main body length extension part 2. The height position of the clamp part 4, in other words, the distance between the upper surface of the base plate 30 and the clamp part 4 can be changed.

Further, the T-slot engagement portion 3 of this embodiment is configured to be detachably connected to the body length extension portion 2 described above.

Specifically, the T-groove engaging portion 3 is formed in a shape that fits into the T-groove 31 of the base 30, and has a connecting portion on the upper portion that fits into the lower connecting portion 24 of the main body length extension portion 2. 25 is provided, and is configured to be detachably connected to the lower continuous receiving part 24 of the main body length extension part 2 via the continuous part 25.

Furthermore, in this embodiment, the T-slot engaging portion 3 is configured to include a plurality of T-slot engaging portions 3 having different shapes.

That is, in this embodiment, as shown in FIGS. 10 and 11, the shape of the T-groove engaging part 3 can be changed by replacing the T-groove engaging part 3, and thereby the T-groove 31 can be attached to a different substrate. It is configured so that it can be attached to 30.

The effects of this embodiment configured as described above will be explained below.

In this embodiment, a main body length extending part 2 having a length suitable for the height (thickness) of the member to be fixed 40 is selected from a plurality of main body length extending parts 2 having different lengths, and the clamp main body part 1 By connecting the clamp device to the clamp member 40, the clamp device has a length suitable for the member 40 to be fixed.

Therefore, the fixed members 40 of various heights (thicknesses) can be fixed with this single embodiment, eliminating the need for multiple clamping devices as in the past, and reducing the cost of clamping devices. At the same time, the management of the clamp device becomes easier and workability improves.

Furthermore, in this embodiment, a T-slot engaging portion 3 having a shape suitable for the T-slot 31 provided on the base 30 of the processing device to be used is selected from among a plurality of T-slot engaging portions 3 having different shapes. By being connected to the main body length extension part 2, it becomes a clamping device that can be attached to the base plate 30 thereof.

Therefore, this embodiment can be used for other processing devices having bases 30 with different shapes of T-grooves 31, and there is no need to have a large number of clamp devices for each processing device as in the past. The cost of the device can be reduced, the clamp device can be easily managed, and work efficiency is improved.

Moreover, in this embodiment, since the clamp main body 1 is configured to be swingable in the left and right directions, the holding position with respect to the fixed member 40 can be changed as appropriate, and various fixed members 40 can be moved as appropriate. It can be fixed in a precise position.

In this way, this embodiment provides an innovative clamping device that exhibits unprecedented effects and is highly practical.

Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

1 Clamp main body part 2 Main body length extension part 3 T-slot engagement part 4 Clamp part
20 Fixed member
21 screws
30 Foundation
31 T groove
40 Fixed member

Claims (2)

A clamping device that fixes a fixed member such as a workpiece or a mold set on a base of a processing device, and includes a clamp body provided with a clamp portion for clamping the fixed member, and a clamp body that can be attached to and detached from the clamp body. a plurality of main body length extensions of different lengths that are connected in a replaceable manner, each of the main body length extensions being configured to be connected to a lower end of the clamp main body; A T-groove engaging portion that engages with a T-groove provided in the base is provided at the lower end of each of the body length extensions, and the clamp body portion is attached to the body length extension portion in the left-right direction. A clamp characterized in that the clamp is arranged so as to be freely swingable and is configured to be fixed in a desired direction in the left and right direction with respect to the length extension of the main body by tightening a fixing member and a screw. Device. 2. The clamping device according to claim 1, further comprising a plurality of said T-groove engaging parts having different shapes connected to said main body length extension part in a detachable and replaceable manner, and said plurality of T-groove engaging parts being selected from among said plurality of T-groove engaging parts. A clamp device characterized in that the T- groove engaging portion is connected to a lower end portion of the main body length extension portion.

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