Cutter claw rod for quickly locking cutter claw

Abstract

The utility model belongs to the technical field of cutter claw rods, in particular to a cutter claw rod for quickly locking a cutter claw, a claw sheet is arranged outside the lower end of a rod body, a groove is formed in the inner surface of the upper end of the claw sheet, an annular groove is formed in the outer surface of the upper end of the claw sheet, and a first spring is mounted in the annular groove; the lower end of the rod body is provided with a jacking mechanism used for enabling the claw pieces to rotate around the protruding ring, the rod body is sleeved with a locking pipe used for rapid locking of the pneumatic driving piece, and the pneumatic driving piece used for disengaging of the locking pipe is installed in the middle of the rod body. The convex ring is integrally formed at the lower end of the rod body, the grooves formed in the inner surfaces of the upper ends of the claw pieces are attached to the surface of the convex ring, the first spring is installed in the annular groove formed in the outer surface of the upper end of the convex ring, and therefore the first spring can conveniently restrain the multiple claw pieces, and a jacking mechanism at the lower end of the rod body can conveniently drive the claw pieces to rotate around the convex ring; and the plurality of claw pieces can be conveniently opened under the action of the jacking mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of knife claw rods, and particularly relates to a knife claw rod for quickly locking a knife claw. Background Art

[0002] With the development of high-speed machining technology, small high-speed electric spindles with high speed and small torque have also been rapidly developed. The traditional spindle tool claw rod is assembled by a pull rod, a pull rod sleeve, an elastic element and multiple claws.

[0003] However, the claw lever often uses hydraulic displacement to lock the tool. However, the hydraulic displacement is time-consuming and difficult to lock quickly. At the same time, it is also difficult to quickly release the tool when unlocking.

[0004] Based on this, a knife claw rod is designed which uses a pneumatic drive to drive the locking tube to move and achieve the purpose of rapid locking of the knife claw. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention provides a knife claw rod for quickly locking the knife claw. The specific technical solution is as follows:

[0006] A knife claw rod for quick locking of a knife claw comprises a rod body, a convex ring is integrally formed on the outer surface of the lower end of the rod body, a claw piece is arranged on the outside of the lower end of the rod body, and there are several claw pieces in a ring array, a groove is provided on the inner surface of the upper end of the claw piece, and the groove is tightly attached to the surface of the convex ring, an annular groove is provided on the outer surface of the upper end of the claw piece, a first spring is installed inside the annular groove, and a locking groove for clamping a tool is provided on the inner surface of the lower end of the claw piece; a lifting mechanism for rotating the claw piece around the convex ring to open is provided at the lower end of the rod body; a pneumatic drive component is installed in the middle of the rod body, and a locking tube is sleeved on the outside of the rod body, and the pneumatic drive component is used to drive the locking tube to move to achieve quick locking of the claw piece.

[0007] Preferably, the lifting mechanism includes a movable groove opened at the bottom of the rod body, a second spring is fixed in the movable groove, a push plate is fixed to the end of the second spring, a push rod is fixed to the surface of the push plate, and the push rod extends outside the rod body and contacts the inner surface of the claw piece, and the push rod corresponds to the claw piece one by one.

[0008] Preferably, the pneumatic drive component includes a boss fixed above the rod body near the convex ring, a pneumatic rod connected to an external air source is fixed on the upper surface of the boss, the telescopic end of the pneumatic rod is fixed on the inner surface of the upper end of the locking tube, and a telescopic component is also fixed between the boss and the locking tube. A third spring is externally connected to the pneumatic rod and the telescopic component, and the two ends of the third spring are respectively fixed on the surface of the locking tube and the boss.

[0009] Preferably, the telescopic part comprises a guide pipe fixed by boss surface welding, and a guide rod welded on the inner surface of the upper end of the locking pipe, and the guide rod is movably installed in the guide pipe.

[0010] Preferably, the first spring is in a ring structure.

[0011] Preferably, the upper end of the rod body is provided with a threaded joint screw-coupled with the equipment.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、the convex ring is integrally formed at the lower end of the rod body, the grooves are arranged on the inner surface of the upper end of the claw piece, the ring groove is arranged on the outer surface of the upper end of the convex ring, and the first spring is arranged in the ring groove, so that the first spring can bind the claw pieces, the claw pieces can be rotated around the convex ring by the jacking mechanism at the lower end of the rod body, the claw pieces can be opened under the action of the jacking mechanism, the locking pipe is sleeved outside the rod body, the locking pipe is connected with the pneumatic driving element arranged in the middle of the rod body, the locking pipe can move outside the claw pieces under the action of the pneumatic driving element, the claw pieces can be quickly locked when the locking pipe moves outside the claw pieces, and the purpose of quick locking of the cutter by the claw rod is achieved.

[0014] 2、the jacking mechanism is composed of a movable groove, a second spring, a push plate and a jacking rod, the push plate is movably arranged in the movable groove through the second spring, and the push plate can jacking the claw pieces with the jacking rod under the action of the second spring, so that the opening and closing of the claw pieces are realized.

[0015] 3、the pneumatic driving element is composed of a pneumatic rod, a telescopic part, a third spring and a boss, the two ends of the pneumatic rod are fixed on the boss and the locking pipe respectively, the telescopic end of the pneumatic rod can move upwards to the outside of the claw pieces when the pneumatic rod is connected with the external air source, the third spring is stretched when the locking pipe moves, the guide pipe moves in the guide rod, the telescopic part is elongated, and the locking pipe is reset under the action of the elastic potential of the third spring when the pneumatic rod is disconnected with the external air source, so that the locking pipe moves outside the claw pieces, and the purpose of quick locking of the cutter by the claw pieces is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a sectional structure schematic view of the utility model;

[0018] Figure 3 It is a part structure schematic view of the utility model;

[0019] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 This is a schematic diagram of the telescopic member structure in the utility model.

[0021] Figure numerals: 1, rod body; 2, convex ring; 3, claw piece; 4, groove; 5, ring groove; 6, first spring; 7, lock groove; 8, movable groove; 9, second spring; 10, push plate; 11, push rod; 12, locking tube; 13, pneumatic rod; 14, telescopic part; 141, guide tube; 142, guide rod; 15, third spring; 16, boss; 17, threaded joint. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model are described below.

[0023] See also Figure 1-5 The present invention provides a technical solution: a knife claw rod for quick locking of a knife claw, comprising a rod body 1, a convex ring 2 integrally formed on the outer surface of the lower end of the rod body 1, a claw piece 3 is arranged on the outside of the lower end of the rod body 1, and the claw pieces 3 are arranged in a ring array. A groove 4 is opened on the inner surface of the upper end of the claw piece 3, and the groove 4 is tightly attached to the surface of the convex ring 2; an annular groove 5 is opened on the outer surface of the upper end of the claw piece 3, and a first spring 6 is installed inside the annular groove 5, and a locking groove 7 for clamping the tool is provided on the inner surface of the lower end of the claw piece 3; a lifting mechanism for rotating the claw piece 3 around the convex ring 2 to open is provided at the lower end of the rod body 1; a pneumatic drive is installed in the middle of the rod body 1, and a locking tube 12 is sleeved on the outside of the rod body 1, and the pneumatic drive is used to drive the locking tube 12 to move, thereby realizing the quick locking of the claw piece 3.

[0024] When the tool is unlocked, the cam 3 is unlocked and the cam 3 is unlocked, so that the cam 3 can be unlocked and the cam 3 can be unlocked.

[0025] Specifically, the lifting mechanism includes a movable groove 8 defined at the bottom of the rod body 1, a second spring 9 being fixed within the movable groove 8, a push plate 10 being fixed to the end of the second spring 9, a push rod 11 being fixed to the surface of the push plate 10, and the push rod 11 extending outside the rod body 1 and contacting the inner surface of the claw piece 3, with the push rod 11 corresponding one-to-one with the claw piece 3. In this embodiment, the lifting mechanism consisting of the movable groove 8, the second spring 9, the push plate 10, and the push rod 11 is movably mounted within the movable groove 8 by the second spring 9, so that the push plate 10, under the action of the second spring 9, can lift the claw piece 3 with the push rod 11, thereby achieving the purpose of opening and closing the claw piece 3.

[0026] Specifically, the pneumatic drive component includes a boss 16 fixed above the rod body 1 near the convex ring 2, and a pneumatic rod 13 connected to an external air source is fixed on the upper surface of the boss 16. The telescopic end of the pneumatic rod 13 is fixed to the inner surface of the upper end of the locking tube 12, and a telescopic component 14 is also fixed between the boss 16 and the locking tube 12. A third spring 15 is sleeved on the outside of the pneumatic rod 13 and the telescopic component 14, and the two ends of the third spring 15 are respectively fixed on the surface of the locking tube 12 and the boss 16. The telescopic component 14 includes a guide tube 141 welded and fixed on the surface of the boss 16, and a guide rod 142 welded on the inner surface of the upper end of the locking tube 12, and the guide rod 142 is movably installed in the guide tube 141. In this embodiment, a pneumatic drive component consisting of a pneumatic rod 13, a telescopic part 14, a third spring 15 and a boss 16 is used, and the two ends of the pneumatic rod 13 are respectively fixed on the boss 16 and the locking tube 12, so that when the pneumatic rod 13 is connected to an external air source, the telescopic end of the pneumatic rod 13 moves the locking tube 12 upward to disengage from the claw piece 3. At the same time, when the locking tube 12 moves, it stretches the third spring 15, and at the same time, the guide tube 141 moves in the guide rod 142 to achieve the extension of the telescopic part 14. At the same time, after the pneumatic rod 13 is disconnected from the external air source, the third spring 15 resets the locking tube 12 under the action of elastic potential energy, so that the locking tube 12 moves the claw piece 3 downward into the locking tube 12, thereby achieving the purpose of quickly locking the tool by the claw piece 3.

[0027] Specifically, the first spring 6 is an annular structure. In this embodiment, the first spring 6 of the annular structure is conveniently installed in the annular groove 5 to elastically bind the plurality of claws 3.

[0028] Specifically, the upper end of the rod body 1 is provided with a threaded joint 17 for screwing with the device. In this embodiment, the rod body 1 is conveniently screwed with the device through the threaded joint 17 at the upper end.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A knife claw rod for quick locking of a knife claw, comprising a rod body (1), characterized in that: The outer surface of the lower end of the rod body (1) is integrally formed with a convex ring (2), the outer surface of the lower end of the rod body (1) is provided with a claw piece (3), and the claw pieces (3) are arranged in a ring array. The inner surface of the upper end of the claw piece (3) is provided with a groove (4), and the groove (4) is tightly attached to the surface of the convex ring (2). The outer surface of the upper end of the claw piece (3) is provided with an annular groove (5), and a first spring (6) is installed inside the annular groove (5). The inner side surface of the lower end of the claw piece (3) is provided with a locking groove (7) for clamping a tool; the lower end of the rod body (1) is provided with a lifting mechanism for rotating the claw piece (3) around the convex ring (2) to open; the middle part of the rod body (1) is provided with a pneumatic drive component, and the rod body (1) is sleeved with a locking tube (12) on the outside, and the pneumatic drive component is used to drive the locking tube (12) to move to achieve rapid locking of the claw piece (3).

2. The knife claw lever for quick locking of the knife claw according to claim 1, characterized in that: The lifting mechanism includes a movable groove (8) opened at the bottom of the rod body (1), a second spring (9) is fixed in the movable groove (8), a push plate (10) is fixed to the end of the second spring (9), a push rod (11) is fixed to the surface of the push plate (10), and the push rod (11) extends to the outside of the rod body (1) and contacts the inner surface of the claw piece (3), and the push rod (11) corresponds to the claw piece (3) one by one.

3. The knife claw lever for quick locking of the knife claw according to claim 1, characterized in that: The pneumatic drive member comprises a boss (16) fixed above the rod body (1) near the convex ring (2); a pneumatic rod (13) connected to an external air source is fixed on the upper surface of the boss (16); a telescopic end of the pneumatic rod (13) is fixed to the inner surface of the upper end of the locking tube (12); a telescopic member (14) is also fixed between the boss (16) and the locking tube (12); a third spring (15) is sleeved on the outside of the pneumatic rod (13) and the telescopic member (14), and two ends of the third spring (15) are respectively fixed to the surface of the locking tube (12) and the boss (16).

4. The knife claw lever for quick locking of the knife claw according to claim 3, characterized in that: The telescopic member (14) comprises a guide tube (141) welded and fixed to the surface of the boss (16), and a guide rod (142) welded to the inner surface of the upper end of the locking tube (12), and the guide rod (142) is movably installed in the guide tube (141).

5. The knife claw lever for quick locking of knife claws according to claim 1, characterized in that: The first spring (6) is an annular structure.

6. The knife claw lever for quick locking of knife claws according to claim 1, characterized in that: The upper end of the rod body (1) is provided with a threaded joint (17) that is screwed together with the equipment.

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