CN217666878U - Universal type tool clamping device - Google Patents
Universal type tool clamping device Download PDFInfo
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- CN217666878U CN217666878U CN202220791730.8U CN202220791730U CN217666878U CN 217666878 U CN217666878 U CN 217666878U CN 202220791730 U CN202220791730 U CN 202220791730U CN 217666878 U CN217666878 U CN 217666878U
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Abstract
The utility model discloses a universal tool clamping device, in particular to the technical field of tool clamping, which comprises a chuck main body and a rotary clamping piece; the chuck main body comprises a fixed end and a clamping end, the fixed end is used for fixing the chuck main body, and the rotary clamping piece is sleeved on the clamping end and used for disassembling and assembling tools; a reset torsion spring and a clamping limiting device are arranged between the rotary clamping piece and the clamping end; a radial opening is formed in the middle of the clamping end, and a steel ball smaller than the aperture is arranged in the radial opening; the inner wall of the rotating clamping piece is provided with an abutting curved surface, the abutting curved surface corresponds to the radial hole opening position, and the abutting curved surface is provided with a highest abutting point A and a lowest abutting point B; the clamping end is provided with a flat clamping groove and a hexagonal clamping groove along the axial direction; the utility model realizes the clamping of the saw blade and other tools on the same device through the arrangement of the flat joint groove and the hexagonal joint groove; and the tool can be conveniently replaced by matching the rotary clamping piece with the clamping end.
Description
Technical Field
The utility model relates to an instrument clamping technical field specifically is a relate to a general type instrument clamping device.
Background
The saw blade of the reciprocating cutting tool is a consumable item requiring free removal from the reciprocating bar for ready replacement. Accordingly, various types of blade clamping devices have been designed to address this problem. The conventional saw blade clamping device comprises two clamping modes, wherein one mode is that a steel ball or a pressing pin and other pressing elements are used for pressing a side plane of a saw blade, and the other mode is that the pressing elements are used for pressing a side end face of the saw blade, but the existing clamping device is only suitable for mounting a single type of saw blade and cannot be suitable for mounting other tools.
The saw blade clamping device is positioned in a shell of the reciprocating cutting tool and partially extends out of the shell, and comprises a hollow reciprocating rod, a clamping sleeve which is sleeved on the outer side of the reciprocating rod and can rotate relative to the reciprocating rod, a sliding block and a spring which are arranged in the reciprocating rod, wherein a position limiting piece is arranged between the reciprocating rod and the clamping sleeve to limit the clamping sleeve to axially move along the reciprocating rod, an inner flange edge extends inwards in a direction perpendicular to the axial direction of the reciprocating rod at the free end of the clamping sleeve, and the inner flange edge forms an inclined plane along the axial direction of the reciprocating rod; the clamping device with the structure has the problems that the clamping device can only be suitable for mounting and using a single type of saw blade, cannot be suitable for mounting other tools, and is narrow in application range.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The utility model discloses an above-mentioned defect to prior art existence especially provides a general type instrument clamping device, has solved current clamping device and can only be applicable to the saw blade installation use of single type, the narrower problem of application scope.
2. Technical scheme
In order to solve the technical problem, the utility model provides a universal tool clamping device, which comprises a chuck main body and a rotary clamping piece;
the chuck main body comprises a fixed end and a clamping end, the fixed end is used for fixing the chuck main body, and the rotary clamping piece is sleeved on the clamping end and used for disassembling and assembling tools;
a reset torsion spring and a clamping limiting device are arranged between the rotary clamping piece and the clamping end;
a radial opening is arranged in the middle of the clamping end, and a steel ball smaller than the aperture is arranged in the radial opening;
the inner wall of the rotating clamping piece is provided with an abutting curved surface, the abutting curved surface corresponds to the position of the radial hole, the abutting curved surface is provided with a highest abutting point A and a lowest abutting point B, when the highest abutting point A corresponds to the radial hole, the steel ball is still in a movable state so as to disassemble and assemble the tool, and when the lowest abutting point B or a transition point C between the highest abutting point A and the lowest abutting point B corresponds to the radial hole, the steel ball abuts against the side part of the tool so as to fix the tool;
when the clamping piece is not affected by external force, the lowest abutting point B corresponds to the radial opening hole under the action of the reset torsion spring, and the highest abutting point A can correspond to the radial opening hole by rotating the rotary clamping piece through external force;
the clamping end is provided with a flat clamping groove and a hexagonal clamping groove along the axial direction.
The flat joint groove and the hexagonal joint groove are coaxially arranged, and two ends of the hexagonal joint groove of the flat joint groove extend outwards from the side wall or the vertex angle of the hexagonal joint groove.
The flat clamping groove is used for placing a saw blade, and the hexagonal clamping groove is used for placing a tool with a hexagonal head.
The clamping limiting device comprises a limiting block arranged on the rotating piece and a limiting clamping groove arranged on the clamping end, and the limiting block and the limiting clamping groove are matched and clamped to limit the rotating angle of the rotating clamping piece.
Wherein, reset torsion spring one end and clamping end are pegged graft fixedly, and the other end is pegged graft fixedly with the rotating member.
3. Advantageous effects
Compared with the prior art, the utility model realizes the clamping of the saw blade and other tools on the same device through the arrangement of the flat joint groove and the hexagonal joint groove; and the tool can be conveniently replaced by rotating the rotating piece through the matching of the rotating clamping piece and the clamping end.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of the rotary clamping member of the present invention;
FIG. 3 is a cross-sectional view of the chuck body of the present invention;
FIG. 4 is a schematic view of a chuck body according to the present invention;
in the figure:
1 is a chuck main body;
11 is a fixed end; 12 is a clamping end; 13 is a reset torsion spring; 14 is a flat joint clamping groove; 15 is a hexagonal clamping groove; 16 is a radial opening; 17 is a steel ball;
2, a rotary clamping piece is arranged;
21 is a handle; 22 is a rotating member; 23 is an abutting curved surface; 24 is a hook hole;
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
A general type tool clamping device as shown in fig. 1 to 4, comprising a chuck body 1 and a rotary clamping piece 2;
the chuck main body 1 comprises a fixed end 11 and a clamping end 12, the fixed end 11 is used for fixing the chuck main body 1, the rotary clamping piece 2 is sleeved on the clamping end 12 and is used for disassembling and assembling tools, and in the specific use process, the fixed end 11 is connected with a reciprocating rod of an electric tool or fixedly installed together with a manual tool;
a reset torsion spring 13 and a clamping limiting device are arranged between the rotary clamping piece 2 and the clamping end 12; specifically, the rotating clamping piece 2 comprises a rotating piece 22 and a handle 21 sleeved on the rotating piece 22, the clamping limiting device comprises a limiting block arranged on the rotating piece 22 and a limiting clamping groove arranged on the clamping end 12, and the limiting block and the limiting clamping groove are clamped in a matched manner to limit the rotating angle (not shown in the figure) of the rotating clamping piece 2; one end of the reset torsion spring 13 is fixedly inserted into the clamping end 12, and the other end of the reset torsion spring is fixedly inserted into the rotating piece 22, namely, the rotating piece 22 is connected with the clamping end 12 in a twisting mode through the reset torsion spring 13; the specific principle and effect are as follows:
as shown in fig. 2, an abutting curved surface 23 is arranged on the inner wall of the rotary clamping member 2, the abutting curved surface 23 corresponds to the radial hole 16, the abutting curved surface 23 is provided with a highest abutting point a and a lowest abutting point B, the middle part of the clamping end 12 is provided with a radial hole 16, and the radial hole 16 is internally provided with a steel ball 17 slightly smaller than the diameter of the hole, and in the embodiment, through setting the diameter of the radial hole 16, the steel ball can be well clamped in the radial hole 16, and the abutting curved surface 23 is a smooth curved surface with two sections of circular arc-shaped connection, further, it needs to be explained that when the hexagonal clamping groove 14 and the hexagonal clamping groove 15 are clamped, because of the difference of clamping positions, when the hexagonal clamping groove 15 is used for mounting various tools, the rotary clamping member 2 is not rotated to the lowest abutting point B, and before the lowest abutting point B is rotated, a transition point C between the highest abutting point a and the lowest abutting point B already makes the steel ball 17 abut against the side wall of the tool with head, thereby realizing fixation, and when the lowest abutting point B can ensure that the saw blade 14 is fixed on the flat-mouth clamping groove 14;
the specific working process is as follows, when the highest abutting point A corresponds to the radial opening hole 16, the steel ball 17 is still in a movable state so as to disassemble and assemble the tool, when the rotary clamping piece 2 rotates, and in the process that the lowest abutting point B rotates to the radial opening hole 16, the steel ball 17 is gradually extruded towards the inner axial direction, and after a certain position is reached, the corresponding tool can be fixed; when the tool is not acted by external force and no tool is installed, the lowest abutting point B corresponds to the radial opening hole 16 under the action of the reset torsion spring 13, the highest abutting point A corresponds to the radial opening hole 16 by rotating the rotary clamping piece 2 through external force, and the clamping of various tools on the same device is realized through the arrangement of the structure; the handle 21 is convenient to exert force when rotating.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A universal tool clamping device, characterized in that it comprises a collet body (1) and a rotating clamping piece (2);
the chuck main body (1) comprises a fixed end (11) and a clamping end (12), the fixed end (11) is used for fixing the chuck main body (1), and the rotary clamping piece (2) is sleeved on the clamping end (12) and used for disassembling and assembling tools;
a reset torsion spring (13) and a clamping limiting device are arranged between the rotary clamping piece (2) and the clamping end (12);
a radial opening (16) is formed in the middle of the clamping end (12), and a steel ball (17) smaller than the aperture is arranged in the radial opening (16);
the inner wall of the rotary clamping piece (2) is provided with an abutting curved surface (23), the abutting curved surface (23) corresponds to the position of the radial hole (16), the abutting curved surface (23) is provided with a highest abutting point A and a lowest abutting point B, when the highest abutting point A corresponds to the radial hole (16), the steel ball (17) is still in a movable state, so that the tool can be disassembled and assembled, and when the lowest abutting point B or a point transition point C between the highest abutting point A and the lowest abutting point B corresponds to the radial hole (16), the steel ball (17) abuts against the side part of the tool to fix the tool;
when the clamping piece is not affected by external force, the lowest abutting point B corresponds to the radial opening hole (16) under the action of the reset torsion spring (13), and the highest abutting point A can correspond to the radial opening hole (16) by rotating the rotary clamping piece (2) through external force;
the clamping end (12) is provided with a flat clamping groove (14) and a hexagonal clamping groove (15) along the axial direction.
2. The universal tool clamping device as claimed in claim 1, wherein the flat mouth clamping groove (14) is coaxially arranged with the hexagonal clamping groove (15), and two ends of the flat mouth clamping groove (14) extend outwards from the side wall or the top corner of the hexagonal clamping groove (15).
3. A universal tool clamping device according to claim 2, wherein said flat mouth snap groove (14) is used for the mounting of saw blades and said hexagonal snap groove (15) is used for the mounting of tools with hexagonal heads.
4. The universal type tool clamping device is characterized in that the rotary clamping piece (2) comprises a rotating piece (22) and a handle (21) sleeved on the rotating piece (22), the clamping limiting device comprises a limiting block arranged on the rotating piece (22) and a limiting clamping groove arranged on the clamping end (12), and the limiting block and the limiting clamping groove are matched and clamped to limit the rotation angle of the rotary clamping piece (2).
5. The universal tool clamping device as claimed in claim 4, wherein the return torsion spring (13) is fixed to the clamping end (12) by means of an insertion connection at one end and to the rotary member (22) by means of an insertion connection at the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220791730.8U CN217666878U (en) | 2022-04-07 | 2022-04-07 | Universal type tool clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220791730.8U CN217666878U (en) | 2022-04-07 | 2022-04-07 | Universal type tool clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217666878U true CN217666878U (en) | 2022-10-28 |
Family
ID=83733394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220791730.8U Active CN217666878U (en) | 2022-04-07 | 2022-04-07 | Universal type tool clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217666878U (en) |
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2022
- 2022-04-07 CN CN202220791730.8U patent/CN217666878U/en active Active
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