CN217991789U - Knife claw with self-locking mechanism - Google Patents
Knife claw with self-locking mechanism Download PDFInfo
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- CN217991789U CN217991789U CN202222064218.6U CN202222064218U CN217991789U CN 217991789 U CN217991789 U CN 217991789U CN 202222064218 U CN202222064218 U CN 202222064218U CN 217991789 U CN217991789 U CN 217991789U
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- claw
- control pin
- sword
- cutter
- self
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Abstract
The utility model discloses a tool claw with a self-locking mechanism, belonging to the technical field of machine tool magazines, comprising a control pin, a limit pin, a shaft, a spring, a tool claw and a main body; the control pin is located the central line on main part upper portion, and the middle part of control pin is equipped with the recess, and the spring is installed to the inner chamber of control pin, respectively is equipped with a sword claw in the lower part of main part, the two outsides of controlling of control pin lower part about, and sword claw upper portion inboard is equipped with a recess, has formed top arch and middle part arch, and two sword claws are all connected with the main part through the axle, are equipped with the spacer pin respectively in the main part in the top outside of two sword claws, the medial surface of sword claw lower part and the lateral surface phase-match of the cutter of centre gripping. The utility model discloses only need the motion of control pin just can control opening and pressing from both sides tightly of sword claw, the sword claw can not make the control pin motion, and then reaches the auto-lock, has consequently solved the problem that the sword claw exists the sword risk of falling when high-speed removal, has improved the reliability of tool magazine operation.
Description
Technical Field
The utility model relates to a tool claw with self-locking mechanism belongs to lathe tool magazine technical field.
Background
The tool claw is an important part of a tool magazine of the machine tool and is used for clamping the tool so as to complete the transfer and storage of the tool.
The existing conventional knife claw is generally opened by extrusion force generated by the knife claw when a knife enters the knife claw, and after the knife enters the knife claw, the knife claw clamps the knife without other trigger factors by using an elastic element in the knife claw.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a gripper with self-locking mechanism, technical scheme as follows:
a cutter claw with a self-locking structure comprises a control pin, a limiting pin, a shaft, a spring, a cutter claw and a main body, wherein the control pin is positioned at the central line position of the upper part of the main body;
the middle part of the control pin is provided with a groove, the upper end of the groove is a right angle, and the lower end of the groove is an obtuse angle inclined downwards;
the cutter claw is provided with a groove at the inner side of the upper part, so that a top bulge and a middle bulge facing to a center line are formed;
the top protrusion of the knife claw can be clamped in the groove of the control pin.
The cutter claw can rotate along the shaft and is limited in position by the limiting pin.
The outer sides of the top ends of the two cutter claws are provided with right-angled grooves.
The inner side surfaces of the lower parts of the two tool claws are matched with the outer side surface of a clamped tool.
The control pin can vertically move up and down.
The shaft is located at a lower portion of the body and an upper portion of the jaw.
The bottom end of the spring extends beyond the bottom end of the control pin.
The utility model has the advantages that: the utility model discloses because the coefficient of friction of control round pin and sword claw contact point department is greater than the tangent value of contact angle, so only need the motion of control round pin just can control opening and pressing from both sides tightly of sword claw, the sword claw can not make the control round pin motion, and then reach the auto-lock, consequently the utility model discloses can not produce the action by the effort that the cutter produced, solved the sword claw and have the problem that falls the sword risk when high-speed removal, improved the reliability of tool magazine operation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front sectional view of the present invention, wherein (a) is a state where the jaw clamps the tool, and (b) is a state where the jaw opens.
In the figure, 1-control pin, 2-limit pin, 3-shaft, 4-spring, 5-claw, 6-main body and 7-cutter.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings:
the cutter claw with the self-locking mechanism as shown in fig. 1 comprises a control pin 1, a limiting pin 2, a shaft 3, a spring 4, a cutter claw 5 and a main body 6; the control pin 1 is positioned at the central line position of the upper part of the main body 6; a spring 4 is arranged in the inner cavity of the control pin 1, and the bottom end of the spring 4 extends out of the bottom end of the control pin 1 in a relaxed state; the left and right outer sides of the lower part of the main body 6 and the lower part of the control pin 1 are respectively provided with a cutter claw 5, and the two cutter claws 5 are bilaterally symmetrical; the two cutter claws 5 are connected with a main body 6 through shafts 3, and the shafts 3 are positioned at the lower part of the main body 6 and the upper part of the cutter claws 5; limiting pins 2 are respectively arranged on the main body 6 at the outer sides of the top ends of the two cutter claws 5; the inner side surface of the lower part of the cutter claw 5 is matched with the outer side surface of the clamped cutter 7;
the control pin 1 can vertically move up and down, and the opening and the clamping of the knife claw 5 are controlled by different positions of the control pin 1;
the outer sides of the top ends of the two cutter claws 5 are respectively provided with a right-angle groove, and when the cutter claws 5 rotate around the shaft 3, the limiting pin 2 limits the rotating positions of the cutter claws 5 through the right-angle grooves;
the middle part of the control pin 1 is provided with a groove, the upper end of the groove is a right angle, and the lower end of the groove is an obtuse angle inclined downwards; the cutter claw 5 is provided with a groove at the inner side of the upper part, so that a top bulge and a middle bulge facing to the center line are formed.
Fig. 2 (a) shows a conventional state of the tool bit 5, i.e., a state in which the tool bit 5 clamps the tool 7. The cutter 7 waits at the center of the cross line in a correct posture, when the spring 4 is in a loose state, the control pin 1 is in a high position under the action of the spring 4, the lower part of the groove of the control pin 1 is in convex contact with the top of the cutter claw 5 to exert an outward acting force, and the inner side surface of the lower part of the cutter claw 5 is matched with the outer side surface of the cutter 7, so that the lower part of the cutter claw 5 clamps the cutter 7; fig. 2 (b) shows the jaw 5 in an open state. When the control pin 1 is subjected to an external force F, the spring 4 is compressed downwards, the control pin 1 moves downwards, the bottom end of the control pin 1 is in convex contact with the middle part of the knife claw 5, an acting force is applied to expand the lower part of the knife claw 5, the top part of the knife claw 5 is clamped in the groove of the control pin 1, and the friction coefficient of the contact point of the control pin 1 and the knife claw 5 is greater than the tangent value of the contact angle, so that the knife claw 7 can be controlled by the movement of the control pin 1, and the control pin 1 cannot be moved by the knife claw 5, thereby achieving self-locking; when the external force F applied to the control pin 1 is removed, the spring 4 returns upwards to the original state, so that the control pin 1 is in the high position, and the knife claw 5 clamps the knife 7 again.
It should be noted that the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the teachings of the foregoing embodiments, or equivalents may be substituted for some or all of their features, without departing from the scope of the present invention.
Claims (7)
1. The cutter claw with the self-locking mechanism comprises a control pin (1), a limiting pin (2), a shaft (3), a spring (4), cutter claws (5) and a main body (6), and is characterized in that the control pin (1) is located on the central line of the upper part of the main body (6), the spring (4) is installed in an inner cavity of the control pin (1), the cutter claws (5) are respectively arranged on the lower part of the main body (6) and the left and right outer sides of the lower part of the control pin (1), the two cutter claws (5) are bilaterally symmetrical, the two cutter claws (5) are connected with the main body (6) through the shaft (3), and the limiting pins (2) are respectively arranged on the main body (6) on the outer sides of the top ends of the two cutter claws (5);
the middle part of the control pin (1) is provided with a groove, the upper end of the groove is a right angle, and the lower end of the groove is an obtuse angle inclined downwards;
the cutter claw (5) is provided with a groove at the inner side of the upper part, so that a top bulge and a middle bulge facing to the center line are formed;
the top protrusion of the knife claw (5) can be clamped in the groove of the control pin (1).
2. A jaw with self-locking mechanism according to claim 1, characterized in that the jaw (5) is rotatable along an axis (3) and is limited in position by a limit pin (2).
3. The tool claw with the self-locking mechanism is characterized in that a right-angle groove is formed in the outer side of the top end of each of the two tool claws (5).
4. A jaw with self-locking mechanism according to claim 1, characterized in that the inner side of the lower part of two jaws (5) matches the outer side of the clamped tool (7).
5. A jaw with self-locking mechanism according to claim 1, characterized in that the control pin (1) can move vertically up and down.
6. A jaw with self-locking mechanism according to claim 1, characterized in that the shaft (3) is located in the lower part of the body (6) and in the upper part of the jaw (5).
7. A tool claw with a self-locking mechanism according to claim 1, wherein the bottom end of the spring (4) extends beyond the bottom end of the control pin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222064218.6U CN217991789U (en) | 2022-08-08 | 2022-08-08 | Knife claw with self-locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222064218.6U CN217991789U (en) | 2022-08-08 | 2022-08-08 | Knife claw with self-locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217991789U true CN217991789U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222064218.6U Active CN217991789U (en) | 2022-08-08 | 2022-08-08 | Knife claw with self-locking mechanism |
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| Country | Link |
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| CN (1) | CN217991789U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115922381A (en) * | 2023-03-10 | 2023-04-07 | 冈田智能(江苏)股份有限公司 | Self-locking cutter claw suitable for high-rotating-speed cutter head |
-
2022
- 2022-08-08 CN CN202222064218.6U patent/CN217991789U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115922381A (en) * | 2023-03-10 | 2023-04-07 | 冈田智能(江苏)股份有限公司 | Self-locking cutter claw suitable for high-rotating-speed cutter head |
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