CN202606982U

CN202606982U - Broach self-fastening chuck

Info

Publication number: CN202606982U
Application number: CN 201220150934
Authority: CN
Inventors: 唐建新
Original assignee: HUNAN CHANGJI TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HUNAN CHANGJI TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2012-12-19
Anticipated expiration: 2022-04-12

Abstract

The utility model discloses a broach self-fastening chuck which comprises a body and a jacket, wherein the body is provided with an inner center hole. The broach self-fastening chuck is characterized in that the body is further provided with two corresponding clamping holes, a slider is arranged in each clamping hole, a reset spring is arranged between the opposite near ends of the two sliders, and the opposite far ends of the two sliders are matched with oblique slide grooves on the jacket. The broach self-fastening chuck has the advantages of more convenience in use and more accuracy in positioning.

Description

The broaching tool self-clinching fastener

Technical field

The utility model relates to a kind of broaching machine accessory, especially a kind of broaching tool self-clinching fastener.

Background technology

Broaching machine is comparatively extensive the mechanical processing industry use, draws the efficient of processing often higher.There is a common problem in existing broaching machine equipment, and that is exactly that self-clinching fastener exists chucking power not enough, the shortcoming that positioning performance is not good.

Summary of the invention

The purpose of the utility model be to provide a kind of location more accurately, use convenient pulling chuck.

The purpose of the utility model realizes through following technical scheme: a kind of broaching tool self-clinching fastener; Comprise body and overcoat; Have centre bore in body interior, it is characterized in that: also be provided with two corresponding clamping holes on the described body, be equipped with slide block in each clamping hole; Two slide blocks are provided with returning spring between the relative end, two slide blocks end in opposite directions with put oblique chute outward and match.

Described slide block is provided with the folder mouth, replys hole and locating convex block; The both sides of folder mouth are located in described answer hole; On the relative answer hole of two slide blocks, be provided with a returning spring, and locating convex block is located at and rightabout the other end of pressing from both sides mouthful on, and match with oblique chute.

Described folder mouthful employing two pass endoporus, this folder mouth has two kinds of radius length, and center folder port radius is less than the radius of two side clamp ports of both sides.

Described overcoat is made up of outer cap bag and overcoat body; Outer cap bag is connected in the top of overcoat body, also is provided with a convexity in the outside of described overcoat, also is socketed with duster coat on the coat; Duster coat and this convexity closely cooperate; The bottom and the base plate of duster coat are connected, and base plate is connected on the chuck body, also are provided with spring between the convexity in its external sleeve body outside and the base plate.

The utility model matches through meeting and discussing on outer cap bag and the workbench and realizes that moving down of overcoat realize opening of slide block, and the elastic force through spring between bottom and the overcoat makes what the slide block return was held tightly simultaneously; The chuck volume of the utility model increases relatively to some extent, and clamping hole processing is more convenient, and the folder mouth of chuck adopts the two pass endoporus; Can in the slide block scope of minimum, realize griffing and upper slitter, this method of clamping of holding tightly of slide block, it is more accurate to locate; Simultaneously adopt returning spring between the slide block, lighter when griffing, the outside also socket of its external sleeve duster coat; Anti-bits performance is improved, and has improved the reliability when chuck uses.

Description of drawings

Fig. 1 is the utility model structural representation;

Structural representation when Fig. 2 clamps for the utility model slide block;

Fig. 3 is the internal structure sketch map of chuck body;

Fig. 4 is the structural representation of slide block;

Fig. 5 is the side-view of slide block;

Fig. 6 is a slide block internal structure sketch map.

The specific embodiment

Shown in Fig. 1-6, a kind of broaching tool self-clinching fastener comprises body 1 and overcoat 2; Have centre bore 11 in body 1 inside; Also be provided with two corresponding clamping holes 12 on the described body 1, be equipped with slide block 3 in each clamping hole 12, described slide block 3 is provided with folder mouth 31, replys hole 32 and locating convex block 33; The both sides of folder mouth 31 are located in described answer hole 32; Between two slide blocks 3, be provided with a returning spring 4 in the relative answer hole, and locating convex block 33 is located at and presss from both sides on rightabout the other end of mouthfuls 31, and with overcoat 2 on tiltedly chute 23 match; Described folder mouthful 31 employing two pass endoporus, this folder mouth has two kinds of radius length, and center folder port radius is less than the radius of two side clamp ports of both sides.

Described overcoat 2 is made up of with overcoat body 22 outer cap bag 21; Outer cap bag 21 is connected in the top of overcoat body 22, also is provided with a convexity 24 in the outside of described overcoat body 22, also is socketed with duster coat 5 on its external sleeve body; Duster coat 5 closely cooperates with this convexity 24; The bottom of duster coat 5 and base plate 6 are connected, and base plate 6 is connected on the chuck body 1, also is provided with spring 7 between the convexity 24 in its external sleeve body 22 outsides and the base plate 6.

When the utility model is griffed; The outer cap bag 21 at overcoat top contacts with meeting and discussing of workbench; Spring 7 between compression garment body 2 and the base plate 6 makes overcoat 2 move down with respect to chuck body 1, and this moment, slide block 3 was expanded to both sides at the active force of returning spring 4, and the locating convex block 33 on the slide block 3 slides into the bosom of oblique chute 23 on the overcoat 2; This moment, the folder mouth 31 of slide block 3 unclamped the original broaching tool of tightly holding tightly already, griffed very convenient light; In the time of need holding broaching tool tightly; The outer cap bag 21 and the disengaging of meeting and discussing; Overcoat 2 is upwards pushed up under the effect of spring 7, moves on the overcoat 2 relative chuck bodies 2, and the locating convex block 33 of slide block 3 is along with slide from the bosom to more shallow on the plane, slope of oblique chute 23; The folder mouth of two slide blocks 3 is also slowly held tightly relatively simultaneously, tightly broaching tool is held tightly at last.

The folder mouth 31 of the slide block 3 of the utility model adopts the two pass endoporus; Folder mouth with two kinds of different radiis; Can make and realize in the minimum slide block moving range griffing and upper slitter, the folder mouthful chucking power that packs tightly is better simultaneously, and it is more accurate to locate; The locating convex block 33 of slide block 3 surface that contacts with oblique chute 23 is designed to the transition face of non-rule in addition, and this design can prevent the generation of stuck situation when tiltedly chute 23 slides relatively at slide block 3.

The outside of another characteristics its external sleeve 2 of the utility model also socket duster coat 5, this duster coat 5 can play imitates good dustproof anti-bits effect, improves the chuck reliability during operation.

Claims

1. broaching tool self-clinching fastener; Comprise body and overcoat; Have centre bore in body interior, it is characterized in that: also be provided with two corresponding clamping holes on the described body, be equipped with slide block in each clamping hole; Two slide blocks are provided with returning spring between the relative end, two slide blocks end in opposite directions with put oblique chute outward and match.

2. broaching tool self-clinching fastener as claimed in claim 1; It is characterized in that: described slide block is provided with the folder mouth, replys hole and locating convex block; The both sides of folder mouth are located in described answer hole; On the relative answer hole of two slide blocks, be provided with a returning spring, and locating convex block is located at and rightabout the other end of pressing from both sides mouthful on, and match with oblique chute.

3. broaching tool self-clinching fastener as claimed in claim 2 is characterized in that: described folder mouthful employing two pass endoporus, and this folder mouth has two kinds of radius length, and center folder port radius is less than the radius of two side clamp ports of both sides.

4. like any described broaching tool self-clinching fastener of claim 1 to 3, it is characterized in that: described overcoat is made up of outer cap bag and overcoat body, and outer cap bag is connected in the top of overcoat body; The outside at described overcoat also is provided with a convexity; Also be socketed with duster coat on the coat, duster coat and this convexity closely cooperate, and the bottom and the base plate of duster coat are connected; And base plate is connected on the chuck body, also is provided with spring between the convexity in its external sleeve body outside and the base plate.