CN213106440U

CN213106440U - Bidirectional bow clamp

Info

Publication number: CN213106440U
Application number: CN202021461165.6U
Authority: CN
Inventors: 姚海柱
Original assignee: NANTONG INSTITUTE OF TECHNOLOGY
Current assignee: NANTONG INSTITUTE OF TECHNOLOGY
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-05-04
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a bidirectional bow-shaped clamp, which comprises a clamp body, a lead screw, a pressing block and a first pull rod, wherein the clamp body is I-shaped, the left end and the right end of the clamp body are vertically provided with a sliding pair which is formed by a concave groove body groove and a convex sliding block in sliding fit, the concave groove body is fixed on the clamp body, the upper end of the convex sliding block is provided with an upper nut, the lower end of the convex sliding block is provided with a lower nut, and the upper nut and the lower nut are in threaded fit with the lead screw; the lower extreme of lead screw is equipped with the briquetting, slidable first pull rod is transversely placed to the upper end of lead screw. The utility model discloses being equivalent to about will two bow clamps make up into an organic whole, two sets of work pieces about can the centre gripping simultaneously, through addding the removal pair that spill cell body and convex groove slider made up, realize the quick displacement of lead screw, improved work efficiency. The locking screw is arranged on the inner side of the concave groove body, so that the positions of the convex sliding block and the concave groove body can be effectively locked, and the convex sliding block cannot slide upwards under the action of clamping reaction force.

Description

Bidirectional bow clamp

Technical Field

The utility model relates to a two-way bow clamp belongs to centre gripping instrument technical field.

Background

After the workpiece is bonded or welded, the workpiece is generally clamped by a bow clamp at the edge of the workpiece, and the workpiece is detached after being maintained for a period of time, so that the bonding or welding firmness is ensured. Standard clamps only clamp a single side of a workpiece, but cannot clamp workpieces on both sides simultaneously, limiting their use. When a general standard bow clamp clamps a workpiece, a clamping force perpendicular to a contact surface is applied to the workpiece by screwing in a lead screw to clamp the workpiece, the bow clamp realizes up-and-down displacement by the rotation of the lead screw, and when the workpiece is clamped, a pull rod can contact the workpiece by rotating for multiple circles, so that time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a satisfy user's needs, provide a two-way bow-shaped clamp, it can two sides tight work piece of quick clamp.

The utility model provides a technical scheme that its technical problem adopted is: a bidirectional bow-shaped clamp comprises a clamp body and a lead screw, wherein the clamp body is I-shaped, moving pairs in sliding fit with a convex sliding block through a concave groove body groove are vertically arranged at the left end and the right end of the clamp body, the concave groove body is fixed on the clamp body, an upper nut is arranged at the upper end of the convex sliding block, a lower nut is arranged at the lower end of the convex sliding block, and the upper nut and the lower nut are in threaded fit with the lead screw; the lower extreme of lead screw is equipped with the briquetting, slidable first pull rod is transversely placed to the upper end of lead screw.

Furthermore, a locking screw for locking the positions of the convex sliding block 8 and the concave groove body 4 is arranged on the inner side of the concave groove body 4.

Further, the diameter of the locking screw varies between 8-10 mm.

Further, the end of the locking screw is placed on a second lever slidable perpendicular to its axis.

Furthermore, the left side and the right side of the lower end of the fixture body are provided with cylindrical cushion blocks which are coaxial with the lead screw.

The utility model has the advantages that: (1) the utility model discloses it makes up into an organic wholely to be equivalent to about will two bow clamps, two sets of work pieces about can the centre gripping simultaneously, and enable the work piece and keep fixed position relation, when the centre gripping work piece, both sides atress simultaneously has improved and has pressed from both sides specific stress state, has improved bearing capacity. (2) The quick displacement of the lead screw is realized by additionally arranging the sliding pair formed by combining the concave groove body and the convex groove sliding block, and after the pressing block is close to the workpiece, the first pull rod is rotated to clamp the workpiece, so that the working efficiency is improved. The locking screw is arranged on the inner side of the concave groove body, so that the positions of the convex sliding block and the concave groove body can be effectively locked, and the convex sliding block cannot slide upwards under the action of clamping reaction force. (3) The sliding pair formed by combining the concave groove body and the convex sliding block is a universal component, is produced by a professional manufacturer, can be directly welded on the clamp body after being purchased, and reduces the manufacturing cost. (4) As a novel clamping tool, the clamping tool can be made into series products with different sizes.

Drawings

The invention will be further explained with reference to the drawings and the specific embodiments.

Fig. 1 is a front view of the bidirectional bow clamp of the present invention.

Fig. 2 is a cross-sectional view a-a of fig. 1.

Fig. 3 is a sectional view of B-B of fig. 1.

Fig. 4 is a perspective view of the bidirectional bow clamp of the present invention.

In the figure: 1. the clamp comprises a press block, 2 parts of a first pull rod, 3 parts of a locking screw, 4 parts of a concave groove body, 5 parts of a lead screw, 6 parts of a second pull rod, 7 parts of an upper nut, 8 parts of a convex sliding block, 9 parts of a lower nut, 10 parts of a clamp body and 11 parts of a cushion block.

Detailed Description

As shown in fig. 1 to 4, the bidirectional bow-shaped clamp comprises a clamp body 10 and a lead screw 5, wherein the clamp body 10 is in an i-shaped shape, a moving pair which is formed by sliding matching a concave groove 4 and a convex sliding block 8 is vertically arranged at the left end and the right end of the clamp body 10, the concave groove 4 is fixed on the clamp body 10, an upper nut 7 is arranged at the upper end of the convex sliding block 8, a lower nut 9 is arranged at the lower end of the convex sliding block 8, and the upper nut 7 and the lower nut 9 are in threaded fit with the lead screw 5; the lower extreme of lead screw 5 is equipped with briquetting 1, slidable first pull rod 6 is transversely placed to the upper end of lead screw 5.

The left side and the right side of the lower end of the clamp body 10 are provided with cylindrical cushion blocks 11 which are coaxial with the lead screw 5, and the cylindrical cushion blocks 11 can be cast with the clamp body 10 into a whole.

And a locking screw 3 for locking the positions of the convex sliding block 8 and the concave groove body 4 is arranged on the inner side of the concave groove body 4. The diameter of the locking screw 3 varies between 8-10 mm. The end of said locking screw 3 is placed on a second lever 2 slidable perpendicularly to its axis.

The working process is as follows: two workpieces are respectively inserted between the pressing block 1 and the cushion block 11 from left and right, a left hand and a right hand simultaneously rotate the second pull rod 2 on the locking screw 3, so that the tip of the locking screw 3 does not press the convex sliding block 8 any more, the convex sliding block 8 drives the screw rod 5 to slide downwards under the action of gravity, and the pressing block 1 contacts the upper surface of the workpiece. At this time, the second lever 2 is rotated reversely, so that the tip of the locking screw 3 presses the convex sliding block 8, the positions of the convex sliding block 8 and the concave groove body 4 are locked, and the upward sliding cannot be realized under the action of the clamping reaction force. Then, the first pull rods 6 on the upper portions of the lead screws 5 are respectively rotated by two hands, and the pressing blocks 1 at the two ends are driven to tightly press the workpiece.

The utility model discloses it makes up into an organic wholely to be equivalent to about will two bow clamps, two sets of work pieces about can the centre gripping simultaneously, and enable the work piece and keep fixed position relation, when the centre gripping work piece, both sides atress simultaneously has improved and has pressed from both sides specific stress state, has improved bearing capacity. The sliding pair formed by combining the concave groove body 4 and the convex sliding block 8 is a universal component, is produced by a professional manufacturer, can be directly welded on the clamp body 10 after being purchased, and reduces the manufacturing cost.

Finally, it should be noted that: the above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and the appended claims are intended to cover such modifications and equivalents as fall within the spirit and scope of the invention.

Claims

1. The utility model provides a two-way bow clamp, includes the anchor clamps body (10), lead screw (5), its characterized in that: the fixture body (10) is I-shaped, a moving pair which is formed by a groove of a concave groove body (4) and a convex sliding block (8) in sliding fit is vertically arranged at the left end and the right end of the fixture body, the concave groove body (4) is fixed on the fixture body (10), an upper nut (7) is arranged at the upper end of the convex sliding block (8), a lower nut (9) is arranged at the lower end of the convex sliding block, and the upper nut (7) and the lower nut (9) are in threaded fit with a lead screw (5); the lower extreme of lead screw (5) is equipped with briquetting (1), slidable first pull rod (6) is transversely placed to the upper end of lead screw (5).

2. A bi-directional arcuate clamp as claimed in claim 1, wherein: and a locking screw (3) for locking the positions of the convex sliding block (8) and the concave groove body (4) is arranged on the inner side of the concave groove body (4).

3. A bi-directional arcuate clamp as claimed in claim 2, wherein: the diameter of the locking screw (3) varies between 8-10 mm.

4. A bi-directional arcuate clamp as claimed in claim 2, wherein: the end of the locking screw (3) is provided with a second trigger (2) which can slide perpendicular to the axis of the locking screw.

5. A bi-directional arcuate clamp as claimed in claim 1, wherein: the left side and the right side of the lower end of the clamp body (10) are provided with cylindrical cushion blocks (11) which are coaxial with the screw rod (5).