CN201432150Y

CN201432150Y - Dovetail type screw die box with protruding port

Info

Publication number: CN201432150Y
Application number: CN2009200724008U
Authority: CN
Inventors: 季明浩; 叶善培
Original assignee: Shanghai Maritime University
Current assignee: Shanghai Maritime University
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-03-31
Anticipated expiration: 2019-05-18

Abstract

The utility model discloses a dovetail type screw die box with a protruding port, which comprises a screw die box, a screw die box cover and a screw die box handle. The screw die box cover is coveredon the screw die box; a dovetail type protruding button is arranged in the inner chamber of the screw die box; external threads are formed on the excircle of the screw die box; the height of the innerchamber of the screw die box is equal to that of the screw die in the screw die box; internal threads are formed on the inside diameter of the top lid of the screw die box cover; a ring channel is formed in the inner chamber of the top lid; a rubber seal ring is placed in the ring channel for ensuring that the screw die is fixed in the screw die box and prevented from sliding after a top cap is tightly screwed. A dovetail type screw die with a novel structure is clamped in the screw die box, and through the lock of the dovetails, the contact area is enlarged, the contact is firm and reliable,and the stability of the screw die processing is effectively guaranteed. The screw die is firmly positioned in the screw die box, the processed threads have good quality and high finished product ratio, the quality of cut threads is remarkably improved, the service life of the screw die is prolonged, and the replacement period of the screw die is shortened.

Description

Dovetail type tang screw die box

Technical field

The utility model relates to a kind of screw die box, particularly relate to a kind of with have a dovetail type tang screw die box that the dovetail type groove matches.

Background technology

In the processing of pincers bed, regular meeting makes some screws by oneself by screw die.Yet have such problem in actual use: in use for some time, rotation phenomenon in use can take place in the screw die that is nested in the screw die box.Particularly using after a period of time, screw die can be with the direction of rotation transfer of cutting with scissors tooth in the screw die box.Tracing it to its cause, is because due to the screw die self structure.This be because: the profile of screw die be the circle shape.Be nested in during use in the screw die box.The screw die box is a circular ring structure.On the nose circle face of screw die box, have a screwed hole.Screw is by this screwed hole precession and touch screw die.After screwing, can play by screw the effect of fastening screw die.Therefore also be referred to as holding screw.Screw contacts with circular pit (shown in dash area among Fig. 1) on the screw die cylindrical end face.

Yet find in actual use: after a period of time, screw die has loosening phenomenon in the screw die box.Trace it to its cause because the frictional force between the external diameter of external force, screw die internal thread and processed rod member causes the spiral marking connection generation on holding screw and the diestock to become flexible phenomenon, the top that makes screw with no longer be in the state of tightening up between the screw die pit contacts.At this moment " transfer " phenomenon can appear in the screw die work in-process in the screw die box.In this case, the threaded exterior that processes is coarse, does not have brightness.Also can residually pull on the thread surface, the vestige of plucking, do not reach the screw strength requirement.

New construction dovetail type screw die can address this problem, if can will adopt new location structure or locate mode between dovetail type screw die and the screw die box, the way of contact that is about to screw and screw die pit makes more firm fixed form into, and that is fully played the result of use of dovetail type screw die.

Summary of the invention

At the problems referred to above, main purpose of the present utility model is to provide a kind of and has the dovetail type tang screw die box that the dovetail type groove matches.The utility model solves above-mentioned technical problem by following technical proposals: comprise screw die box, screw die lid, screw die box handle, described screw die lid covers on the screw die box, it is characterized in that: described screw die box inner chamber is provided with that dovetail type is protruding to be buckled, described screw die box cylindrical adds the system external screw thread, and the inner chamber height of screw die box equals to be contained in the thickness of screw die box back veneer tooth.

Wherein, the caping internal diameter of described screw die lid adds the system internal thread, is provided with a cannelure in the inner chamber of caping, is placed with rubber seal in the described cannelure.

Wherein, the protruding button of described dovetail type comprises protruding button of left dovetail type and the protruding button of right dovetail type, the protruding button left-right symmetry of protruding button of described left dovetail type and right dovetail type.

Wherein, described dovetail type tang screw die box side is equipped with screw handle, and described screw handle comprises left screw handle and screw handle, is installed in the left and right sides of described screw die box respectively.

Positive progressive effect of the present utility model is:

(1), new construction dovetail type screw die clamping is fixed in the screw die box, by interlocking between the dovetail, increases contact area, it is firm to contact, and guarantees that effectively screw die adds the stability in man-hour.No matter external force is much, and whether the external force effect is even, and screw die is offset, loosening, rotation or transfer phenomenon.In addition, the making of the transformation of the way of screw die structure, screw die box and screw die caping are made simple and easy, and cost is low, and processing technology is good.

(2), special screw die box top cover, the top cover internal diameter adds the system internal thread, in addition, processing one cannelure in the inner chamber of top cover, place rubber seal, purpose is to make top cover guarantee that after screwing screw die is fixing in the screw die box, prevents slippage, screw die box and screw die top cover can adopt material commonly used in the various engineerings, and be widely applicable.

(3), screw die locatees in the screw die box firmly, the screw thread that processes, quality is good, the yield rate height, the quality in the time of can obviously improving screw cutting prolongs service life of screw die, reduces the replacement cycle of screw die.

Description of drawings

Fig. 1 is the structural representation of existing screw die;

Fig. 2 is for improving the structural representation of back screw die;

Fig. 3 is the schematic diagram with the supporting screw die box of Fig. 2;

Fig. 4 is the cut-away view of dovetail type screw die box;

Fig. 5 is the cut-away view of dovetail type screw die box top cover;

Fig. 6 is a dovetail type screw die box screw handle schematic diagram;

Fig. 7 is a dovetail type screw die assembly front view;

Fig. 8 is a dovetail type screw die assembly plan view.

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.Fig. 3 is and the schematic diagram of the supporting screw die box of Fig. 2 that the utility model is achieved in that

(1), will make dovetail groove by the line cutting processing on original screw die cylindrical.Dovetail groove becomes symmetric form.As shown in Figure 2.Dovetail among dovetail groove 6 among Fig. 2 on the screw die and Fig. 3 on the screw die box is protruding to be buckled 3 and matches.

The protruding button 3 of dovetail type comprises protruding button 31 of left dovetail type and the protruding button 32 of right dovetail type, protruding button 32 left-right symmetry of protruding button 31 of left dovetail type and right dovetail type, as shown in Figure 3.

(2), special screw die box, the screw die box as shown in Figure 3, the dovetail protruding 3 of screw die box inner chamber buckle with screw die on dovetail groove match, screw die box one end cylindrical adds the system external screw thread, an actor's rendering of an operatic tune height H and the screw die consistency of thickness in the screw die box simultaneously, as shown in Figure 4.

(3), special screw die lid top, caping as shown in Figure 5, the caping internal diameter adds the system internal thread.In addition, processing one cannelure is placed rubber seal 4 in the inner chamber of caping, and purpose is to make caping guarantee that after screwing screw die is fixing in the screw die box, on-slip.

During operation, screw die is put into the screw die box, the dovetail groove on the screw die cylindrical is aimed at protruding button of dovetail on the screw die box, makes it mutual aligning, goes into button.After confirming contact fully, caping (special) connects mutually by the external screw thread of screw thread with the screw die box, screw die is got rid of tight screw die box get final product.

Fig. 6 is a dovetail type screw die box screw handle schematic diagram, and screw handle 5 comprises left screw handle 51 and screw handle 52, is installed in the left and right sides of described screw die box respectively, shown in Fig. 7,8.

The utility model is by being used with the dovetail type screw die, no matter being contact area or contact strength comes reliably than original way of contact of withstanding the circular pit on the screw die cylindrical end face with holding screw, and, this way of contact has also thoroughly solved screw die " rotation " phenomenon, so both be convenient to processing, be convenient to practical operation again, need not to change operating habit.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1, a kind of dovetail type tang screw die box, comprise screw die box (1), screw die lid (2), screw die box handle (3), described screw die lid (2) covers on screw die box (1), it is characterized in that: described screw die box (1) inner chamber is provided with that dovetail type is protruding buckles (3), described screw die box (1) cylindrical adds the system external screw thread, and the inner chamber height of screw die box (1) equals to be contained in the thickness of screw die box (1) back veneer tooth.

2, dovetail type tang screw die box according to claim 1, it is characterized in that: the caping internal diameter of described screw die lid (2) adds the system internal thread, is provided with a cannelure in the inner chamber of caping, is placed with rubber seal (4) in the described cannelure.

3, dovetail type tang screw die box according to claim 1, it is characterized in that: the protruding button of described dovetail type (3) comprises protruding button of left dovetail type (31) and the protruding button of right dovetail type (32), protruding button of described left dovetail type (31) and the protruding button of right dovetail type (32) left-right symmetry.

4, dovetail type tang screw die box according to claim 1, it is characterized in that: described dovetail type tang screw die box side is equipped with screw handle (5), described screw handle (5) comprises left screw handle (51) and right screw handle (52), is installed in the left and right sides of described screw die box respectively.