CN213106715U

CN213106715U - Fast forward tool clamp fixed on table top

Info

Publication number: CN213106715U
Application number: CN202021458833.XU
Authority: CN
Inventors: 李正峰; 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 fast-forward tool clamp fixed on a desktop, which comprises a split nut, a clamp body, a clamping screw and a compression screw, wherein the clamp body is S-shaped, the middle position of the clamp body is provided with a cylindrical cushion block, the upper end part of the clamp body is L-shaped, the L-shaped horizontal plane is vertically provided with a round through hole which can pass through the clamping screw, the lower end part of the clamp body is vertically provided with a threaded hole, and the threaded hole and the round through hole are coaxial with the cylindrical cushion block; the split nut capable of sliding is installed on the L-shaped horizontal plane, a clamping threaded hole of the split nut is in threaded fit with the clamping screw, and a threaded hole in the lower end of the clamp body is in threaded fit with the compression screw. The split nut is additionally arranged, so that the chuck can move down quickly, and the working efficiency is improved. The structure has the advantages of reliable work, convenient manufacture and simple and convenient operation. As a novel clamping tool, the clamping tool can be made into series products with different sizes, and the DIY requirements of students are met.

Description

Fast forward tool clamp fixed on table top

Technical Field

The utility model relates to a be fixed in fast-forward instrument of desktop presss from both sides belongs to clamping tool technical field.

Background

DIY is an English abbreviation for "Do It Yourself", meaning manufactured by oneself. DIY originally arose from the assembly of computers and gradually evolved into a training mode for training the innovative and practical abilities of students. In short, DIY has no limitation of professional qualification, and every student can make creative products by using DIY to do so. In the process of manufacturing products, a workpiece is often required to be fixed on a workbench and cut, sawed or ground. Although small-sized bench vices are available to assist in performing the task, the bench vices are not portable and are not easily mounted on a desk. In the DIY manufacturing process, the machined workpiece may need to be frequently replaced, and even if the same workpiece is machined, the clamping position needs to be frequently replaced due to the fact that a plurality of surfaces to be machined exist, so that a faster clamping tool is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a satisfy user's needs, provide a be fixed in fast forward instrument clamp of desktop, it can make the chuck be close to the work piece fast, then accomplishes the work of pressing from both sides tight work piece.

The utility model provides a technical scheme that its technical problem adopted is: a fast-forward tool clamp fixed on a desktop comprises a split nut, a clamp body, a clamping screw and a compression screw, wherein the clamp body is S-shaped, a cylindrical cushion block is arranged in the middle of the clamp body, the upper end part of the clamp body is L-shaped, a circular through hole capable of penetrating through the clamping screw is vertically arranged on the L-shaped horizontal plane, a threaded hole is vertically arranged at the lower end part of the clamp body, and the threaded hole and the circular through hole are coaxial with the cylindrical cushion block; a split nut capable of sliding is installed on the L-shaped horizontal plane, and a clamping threaded hole of the split nut is coaxial with the round through hole; the split nut comprises two split thread blocks I and II, the side surface of the split nut is horizontally provided with an adjusting threaded hole and a round through hole which are parallel to each other, the adjusting threaded hole is in threaded fit with the adjusting screw rod, the adjusting threaded hole in the thread block I is consistent with the thread direction of the adjusting screw rod, and the adjusting threaded hole in the thread block II is opposite to the thread direction of the adjusting screw rod; the circular through hole is in clearance fit with the cylindrical pin, and one end of the cylindrical pin is fixed on one side of the clamp body; the split nut clamping threaded hole is in threaded fit with the clamping screw, a chuck is arranged at the lower end of the clamping screw, and a slidable hand lever is transversely placed at the upper end of the clamping screw; the threaded hole of the lower end part of the clamp body is in threaded fit with the compression screw, the upper end of the compression screw is provided with a chuck, and the lower end of the compression screw is transversely provided with a slidable hand rod.

Further, the diameter of the adjusting threaded hole of the split nut is 8-10 mm.

Further, the diameter of the round through hole of the split nut is 8-10 mm.

Further, the diameter of the compression screw is equal to that of the clamping screw.

Further, the diameters of the compression screw and the clamping screw are changed between 12 mm and 20 mm.

Further, the length of the compression screw is smaller than that of the clamping screw.

The beneficial effects of the utility model are that, through addding split nut, realize moving down fast of chuck, the chuck is close the work piece after, rotates the tight work piece of clamp screw clamp again to work efficiency has been improved. The structure has the advantages of reliable work, convenient manufacture and simple and convenient operation. As a novel clamping tool, the clamping tool can be made into series products with different sizes, and the DIY requirements of students are met.

Drawings

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

Fig. 1 is a front view of a fast forward tool holder of the present invention secured to a desktop.

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

Fig. 3 is a perspective view of a fast forward tool holder of the present invention fixed to a desktop.

In the figure: 1. the clamp comprises a clamp body, 2 parts of a compression screw rod, 3 parts of a cushion block, 4 parts of a clamp head, 5 parts of a clamping screw rod, 6 parts of split nuts, 7 parts of a hand lever, 61 parts of thread blocks I, 62 parts of an adjusting screw rod, 63 parts of thread blocks II, 64 parts of a cylindrical pin.

Detailed Description

As shown in fig. 1 to 3, a fast-forward tool clamp fixed on a desktop comprises a split nut 6, a clamp body 1, a clamping screw 5 and a compression screw 2, wherein the clamp body 1 is S-shaped, a cylindrical cushion block 3 is arranged in the middle of the clamp body 1, and the cylindrical cushion block 3 and the clamp body 1 are integrally formed; the upper end part of the clamp body 1 is L-shaped, the L-shaped horizontal plane is vertically provided with a round through hole which can pass through the clamping screw 5, the lower end part of the clamp body 1 is vertically provided with a threaded hole, and the threaded hole and the round through hole are coaxial with the cylindrical cushion block; a split nut 6 capable of sliding is installed on the L-shaped horizontal plane, and a clamping threaded hole of the split nut 6 is coaxial with the round through hole; the split nut 6 comprises two half-split thread blocks I61 and II63, the side surface of the split nut 6 is horizontally provided with an adjusting threaded hole and a round through hole which are parallel to each other, the adjusting threaded hole is in threaded fit with the adjusting screw rod 62, the adjusting threaded hole on the thread block I61 is consistent with the thread direction of the adjusting screw rod 62, and the adjusting threaded hole on the thread block II63 is opposite to the thread direction of the adjusting screw rod 62; the circular through hole is in clearance fit with the cylindrical pin 64, and one end of the cylindrical pin 64 is fixed on one side of the fixture body 1; the split nut 6 is in threaded fit with a clamping screw 5, a chuck is arranged at the lower end of the clamping screw 5, and a slidable hand lever 7 is transversely placed at the upper end of the clamping screw 5; the threaded hole of the lower end of the clamp body 1 is in threaded fit with the compression screw rod 2, the upper end of the compression screw rod 2 is provided with a chuck 4, and the lower end of the compression screw rod 2 is transversely provided with a slidable hand rod 7.

The diameter of the adjusting threaded hole of the split nut 6 is between 8 and 10 mm. The diameter of the round through hole of the split nut 6 is between 8 and 10 mm. The compression screw 2 and the clamping screw 5 have the same diameter. The diameters of the pressing screw 2 and the clamping screw 5 vary between 12 and 20 mm. The length of the compression screw 2 is smaller than the length of the clamping screw 5.

The split nut comprises the following working principles and structures: according to the relative motion relationship of the screw and the nut, the motion modes of the common screw transmission are divided into two types: one is that the screw rotates and the nut moves; the other is that the nut is fixed, and the screw rod rotates and moves. The split nut utilizes the principle of a compound screw mechanism, two halves of the split nut are equivalent to two screw pairs with opposite rotation directions, and the two screw pairs can realize quick reverse movement, namely, the two screw pairs approach to each other or leave in reverse. The clamping threaded hole is processed on the axis of the square column body, then the side face of the clamping threaded hole is processed with the round through hole and the adjusting threaded hole which are parallel to each other along the horizontal direction, one section of the adjusting threaded hole is a left-hand thread, and the other section of the adjusting threaded hole is a right-hand thread. Then the clamping threaded hole is split into a thread block I and a thread block II along the central line of the clamping threaded hole. A splitting method of linear cutting can be adopted, and the gap of a cutting seam is less than 0.2 mm. And a cylindrical pin for guiding is arranged in the circular through hole. And an adjusting screw is arranged in the adjusting threaded hole. Because the adjusting threaded hole is two sections of threads with different turning directions, when the adjusting screw rod has different rotating directions, the thread block I and the thread block II are either close to each other or are away from each other. The split nut is a universal component, is produced by professional manufacturers, and can be directly purchased and installed according to required specifications, so that the manufacturing cost is reduced.

When the desk is in work, the edge of the desk is inserted between the clamp body 1 and the clamp head 4 on the lower compression screw rod 2, then the clamp head 4 on the compression screw rod 2 compresses the lower surface of the desk by rotating the hand rod 7 on the lower part, and the clamp body 1 is fixed on the desk. Then, a workpiece to be machined is placed between the clamp body 1 and the chuck 4 on the upper clamping screw 5, the adjusting screw 62 is rotated to open the split nuts 6, the clamping screw 5 moves down rapidly by gravity, the chuck 4 reaches the upper surface of the workpiece, the adjusting screw 62 is rotated reversely to close the split nuts, and then the upper hand lever 7 is rotated to drive the chuck 4 on the clamping screw 5 to clamp the workpiece slowly. After the workpiece is machined, the hand lever 7 on the upper clamping screw 5 is rotated in the opposite direction, and the workpiece is released and removed. The split nut is additionally arranged, so that the chuck 4 can move downwards quickly to approach a workpiece, and the working efficiency is improved. As a novel clamping tool, the clamping tool can be made into series products with different sizes, and the DIY requirements of students are met.

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 be fixed in fast forward instrument of desktop presss from both sides, includes split nut, the anchor clamps body, presss from both sides tight screw, compression screw, its characterized in that: the clamp body is S-shaped, a cylindrical cushion block is arranged in the middle of the clamp body, the end part of the upper end of the clamp body is L-shaped, a round through hole capable of penetrating through a clamping screw rod is vertically formed in the L-shaped horizontal plane, a threaded hole is vertically formed in the end part of the lower end of the clamp body, and the threaded hole and the round through hole are coaxial with the cylindrical cushion block; a split nut capable of sliding is installed on the L-shaped horizontal plane, and a clamping threaded hole of the split nut is coaxial with the round through hole; the split nut comprises two split thread blocks I and II, the side surface of the split nut is horizontally provided with an adjusting threaded hole and a round through hole which are parallel to each other, the adjusting threaded hole is in threaded fit with the adjusting screw rod, the adjusting threaded hole in the thread block I is consistent with the thread direction of the adjusting screw rod, and the adjusting threaded hole in the thread block II is opposite to the thread direction of the adjusting screw rod; the circular through hole is in clearance fit with the cylindrical pin, and one end of the cylindrical pin is fixed on one side of the clamp body; the split nut clamping threaded hole is in threaded fit with the clamping screw, a chuck is arranged at the lower end of the clamping screw, and a slidable hand lever is transversely placed at the upper end of the clamping screw; the threaded hole of the lower end part of the clamp body is in threaded fit with the compression screw, the upper end of the compression screw is provided with a chuck, and the lower end of the compression screw is transversely provided with a slidable hand rod.

2. A quick-advance tool holder secured to a desktop as claimed in claim 1, wherein: the diameter of the adjusting threaded hole of the split nut is 8-10 mm.

3. A quick-advance tool holder to be secured to a desktop as claimed in claim 1 or claim 2, wherein: the diameter of the round through hole of the split nut is between 8 and 10 mm.

4. A quick-advance tool holder secured to a desktop as claimed in claim 1, wherein: the compression screw and the clamping screw are equal in diameter.

5. A quick-advance tool holder secured to a desktop as claimed in claim 1 or 4, wherein: the diameters of the compression screw and the clamping screw are changed between 12 mm and 20 mm.

6. A quick-advance tool holder secured to a desktop as claimed in claim 1 or 4, wherein: the length of the compression screw is smaller than that of the clamping screw.