CN212070423U - Lathe quick-change soft claw - Google Patents
Lathe quick-change soft claw Download PDFInfo
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- CN212070423U CN212070423U CN201922005959.5U CN201922005959U CN212070423U CN 212070423 U CN212070423 U CN 212070423U CN 201922005959 U CN201922005959 U CN 201922005959U CN 212070423 U CN212070423 U CN 212070423U
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- claw
- chuck
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Abstract
The utility model relates to a turning field, in particular to soft claw of lathe quick change. The soft claw is of a split structure and comprises a universal claw (4) and a chuck. According to the technical scheme, the soft claw integrated in the prior art is designed into a split structure and comprises the universal section and the chuck, so that the soft claw can be quickly replaced in the machining process of the machine tool, and the cost of the clamp is saved.
Description
Technical Field
The utility model relates to a turning field, in particular to soft claw of lathe quick change.
Background
When a numerically controlled lathe is used for machining, a soft claw is often used for improving the repeated positioning precision of a workpiece and preventing clamping damage and clamping deformation parts, and the soft claw is an essential clamp for a lathe operator in daily work. Generally, a soft claw structure used by a numerical control lathe is that a copper bar is welded at the front ends of three clamping claws respectively, the copper bar is arranged on a chuck, an excircle lathe tool is used for boring an arc on the copper bar after a plane end face is formed, and finally the formed shape is basically matched with the excircle of a clamping part of a part to be processed. However, the traditional soft claws have an integrated structure, each soft claw can only process parts with specific sizes (each lathe worker probably has dozens of soft claws), when the sizes of the processed parts are changed, the soft claws can only be replaced, the operation is more complicated, the soft claws are used in a large amount, and the production cost is greatly increased.
Disclosure of Invention
The technical problems solved by the invention are as follows: the utility model provides a can realize soft claw quick replacement, practice thrift the soft claw structure of numerical control lathe of anchor clamps cost.
The technical scheme of the invention is as follows: a lathe quick-change soft claw is of a split structure and comprises a universal claw 4 and a chuck. According to the technical scheme, the soft claw integrated in the prior art is designed into a split structure and comprises the universal section and the chuck, so that the soft claw can be quickly replaced in the machining process of the machine tool, and the cost of the clamp is saved.
Preferably, the jaw 4 and the chuck are connected through an eccentric screw;
the eccentric screw comprises a tensioning connecting rod 2 and a rotary tensioner 3, and the rotary tensioner 3 is an eccentric head. This technical scheme is through selecting for use as above the connection fixed knot construct, the separation of the jack catch of being convenient for and general section has realized quick replacement.
Preferably, the chuck is further provided with a T-shaped groove, and one end of the tension connecting rod 2 is positioned in the T-shaped groove. This technical scheme through above-mentioned design, has further guaranteed the speed that the jack catch was changed.
Preferably, a screw hole is formed on the universal claw 4 on one side of the rotary tensioner 3, and a locking screw 5 is installed in the screw hole. According to the technical scheme, on the basis of the original structure, the locking structure is additionally arranged, and the reliability of fixed connection is guaranteed.
Preferably, a locking wedge 6 is arranged between the locking screw 5 and the rotary tensioner 3, and one end of the locking wedge 6 close to the rotary tensioner 3 is an inclined surface. According to the technical scheme, the locking reliability is improved.
Preferably, the other end of the locking wedge 6 is a spherical concave surface, and one end of the locking screw 5 is a ball head matched with the spherical concave surface. The technical scheme ensures the transmission direction of the compression force and improves the locking reliability.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view B-B;
FIG. 4 is a sectional view taken along line A-A;
fig. 5 is a partial enlarged view of the position shown in fig. 4.
Detailed Description
The invention comprises a replaceable copper chuck 1, a tensioning connecting rod 2, a spiral tensioner 3, a universal claw 4, a locking screw 5 and a locking wedge block 6.
The upper end of the universal clamping jaw 4 is provided with a through square groove, two step holes are arranged in the square groove, and two sides of the upper end of the square groove are provided with sawtooth teeth; the front section of the universal claw 4 is provided with a circular arc recess with a certain depth; a blind round hole with a certain depth is arranged on one large side surface of the universal clamping jaw 4, and a through round hole penetrating through the blind round hole on the side surface is inwards arranged on the arc surface of the arc depression; the bottom surface of the universal clamping jaw 4 is provided with a through threaded hole which is penetrated through the blind round hole on the side surface. The universal clamping jaws 4 are matched with the lathe chuck sawtooth teeth through the sawtooth teeth, and three universal clamping jaws 4 are fixed on the lathe chuck through screws inserted into two step holes in square grooves of the universal clamping jaws 4.
The front end of the replaceable copper chuck 1 is provided with an arc surface which is matched with the arc surface clamped by the processing part. The rear end of the replaceable copper chuck 1 is provided with an arc surface which is matched with an arc recess arranged at the front section of the universal clamping jaw 4. The contact surface of the replaceable copper chuck 1 and the universal clamping jaw 4 is upwards provided with a T-shaped groove with a certain depth.
The spiral strainer 3 is of an integral cylindrical structure, and one end of the spiral strainer is provided with an inner hexagon with a certain depth; a spiral groove is inwards arranged in the middle of the spiral tensioner 3, the inner part of the spiral groove is of an Archimedes spiral line structure, and the thickness of the profile of the spiral groove on the circumference is gradually increased; a circle of rolling patterns are arranged at a certain position of the excircle of the spiral tensioner 3. The spiral tensioner 3 is arranged in a blind round hole on the side surface of the universal claw 4
The tensioning connecting rod 2 is a multi-step revolving body, the large end of the tensioning connecting rod 2 is placed into the large end of the T-shaped groove of the replaceable copper chuck 1, and the small end of the tensioning connecting rod 2 is placed into the spiral groove of the spiral tensioner 3. The replaceable copper chuck 1 is connected with the universal clamping jaw 4 by manually rotating the spiral tensioner 3 by using a hexagonal wrench, and the spiral groove in the spiral tensioner 3 plays a stopping function.
The rear end of the locking screw 5 is provided with an inner hexagonal structure, the middle is a threaded rod, and the front section is of a ball head structure. The ball head of the locking screw 5 is in contact fit with the concave arc surface arranged on the top surface of the locking wedge 6; the bottom surface of the locking wedge block 6 is an inclined plane with a certain inclination angle; and the locking screw 5 and the locking wedge block 6 are integrally arranged in the through thread hole at the bottom surface of the universal claw 4, and the screw strainer 3 is pressed by manually rotating the locking screw 5 through the inclined plane on the locking wedge block 6. On the basis of the original structure, a locking structure is additionally arranged, and the reliability of fixed connection is ensured.
Through the movement of the structure, the replaceable copper chuck 1 is rapidly replaced, the time for replacing the whole soft claw when the machined part is replaced is saved, and the whole device is fastened.
When in use, the replaceable copper chuck 1 with the corresponding size is selected, the small end of the tensioning connecting rod 2 penetrates into the spiral tensioning groove through the opening of the spiral tensioner 3, and the large end is placed into the circular groove of the replaceable copper chuck 1; the arc surface of the universal clamping jaw 4 is tightly contacted with the arc surface of the replaceable copper chuck 1, the hexagonal wrench twists the spiral tensioner 3, and the replaceable copper chuck 1 is pulled through the tensioning connecting rod 2, so that the fixing and tensioning of the replaceable copper chuck 1 are realized; the locking screw 5 is connected with the universal clamping jaw 4 through threads, the locking screw 5 is screwed by a hexagonal wrench to move downwards, the locking screw 5 pushes 6. the locking wedge block moves downwards, straight grains on the inclined plane of the locking wedge block 6 are connected with straight-grain knurls at the excircle part of the spiral tensioner 3 to compress the spiral tensioner 3, the spiral tensioner 3 is stopped, and the connecting device is prevented from loosening due to mechanical vibration in the machining process.
Claims (5)
1. A lathe quick-change soft claw is characterized in that: the soft claw is of a split structure and comprises a universal claw (4) and a chuck;
the clamping jaw (4) is connected with the chuck through an eccentric screw;
the eccentric screw comprises a tensioning connecting rod (2) and a rotary tensioner (3), and the rotary tensioner (3) is an eccentric head.
2. The quick-change soft jaw for lathe according to claim 1, characterized in that: the chuck is also provided with a T-shaped groove, and one end of the tensioning connecting rod (2) is positioned in the T-shaped groove.
3. The quick-change soft jaw for lathe according to claim 1, characterized in that: and a screw hole is formed in the universal clamping jaw (4) on one side of the rotary tensioner (3), and a locking screw (5) is installed in the screw hole.
4. The quick-change soft jaw for lathe according to claim 3, characterized in that: a locking wedge block (6) is arranged between the locking screw (5) and the rotary strainer (3), and one end of the locking wedge block (6) close to the rotary strainer (3) is an inclined plane.
5. The quick-change soft jaw for lathe according to claim 4, characterized in that: the other end of the locking wedge block (6) is a spherical concave surface, and one end of the locking screw (5) is a ball head matched with the spherical concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005959.5U CN212070423U (en) | 2019-11-19 | 2019-11-19 | Lathe quick-change soft claw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005959.5U CN212070423U (en) | 2019-11-19 | 2019-11-19 | Lathe quick-change soft claw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212070423U true CN212070423U (en) | 2020-12-04 |
Family
ID=73555724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922005959.5U Active CN212070423U (en) | 2019-11-19 | 2019-11-19 | Lathe quick-change soft claw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212070423U (en) |
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2019
- 2019-11-19 CN CN201922005959.5U patent/CN212070423U/en active Active
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