CN201102210Y

CN201102210Y - Chuck wrench protecting device

Info

Publication number: CN201102210Y
Application number: CNU2007201901195U
Authority: CN
Inventors: 张竹育; 王琮
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-12
Filing date: 2007-11-12
Publication date: 2008-08-20
Anticipated expiration: 2017-11-12

Abstract

The utility model discloses a chuck wrench protecting device, consisting of a fixed sleeve, a moving sleeve and a spring. The fixed sleeve is fastened in a position close to the end of the chuck wrench; the moving sleeve is sheathed coaxially in the fixed sleeve and capable of sliding along the axial direction of the moving sleeve; the spring is arranged between the moving sleeve and the fixed sleeve. Before using, the chuck wrench protecting device and the chuck wrench are fixed together. While using, the assembled chuck wrench with the chuck wrench protecting device is inserted forcibly into the bayonet of the chuck; under the function of a strength, the spring in the chuck wrench protecting device is compressed; the moving sleeve is pressed into the fixed sleeve; the exposed chuck wrench is inserted into the bayonet of the chuck; after finishing operating, the chuck wrench is unclamped; under the function of the spring, the moving sleeve is sprung out from the fixed sleeve so as to make the chuck wrench spring out from the bayonet of the chuck, thereby preventing the wrench from being left on the chuck and playing the safety function.

Description

The chuck handle safeties

Technical field

The utility model relates to a kind of machine tool annex, and specifically, the utility model relates to a kind of chuck handle safeties that the machine tooling operating personnel are shielded.

Background technology

As shown in Figure 1, at present, most of lathes are by chuck 1 fixing/clamping workpiece to be machined, when the loading, unloading workpiece to be machined, by chuck handle 2 rotary chucks, make it claw 3 promptly or unclamp workpiece to be machined.This by the manual mode of being installed make machine chuck fixedly the method for workpiece to be machined have great potential safety hazard, promptly the operator is easy to forget chuck handle 2 is taken off from chuck.If start lathe this moment, chuck handle will very easily be thrown out of with the rotation of chuck one superhigh speed, and operating personnel and machine are caused serious injury.

The easiest generation under following two kinds of situations of this accident: the one, absent minded during the operation of workman's fatigue, forget that pulling up spanner just starts lathe; The 2nd, student, the new worker of shortage operating experience in processes such as practice, owing to do not set up perfect awareness of safety, operational procedure, cause accident to take place frequently.

Summary of the invention

In view of the foregoing, the purpose of this utility model provides a kind of chuck handle safeties, these chuck handle safeties can guarantee that operating personnel are after the workpiece to be machined that is installed finishes, automatically chuck handle is ejected from machine chuck, chuck handle is separated with chuck, ensure operating personnel's safety.

For achieving the above object, the utility model by the following technical solutions: a kind of chuck handle safeties is characterized in that: it is formed by deciding sleeve, moving sleeve, spring three parts;

Describedly decide sleeve and be fastened to chuck handle near the position of end;

Described moving sleeve is enclosed within to be decided in the sleeve, and decides the sleeve coaxial arrangement and can slide along the moving sleeve axis direction;

Described spring is arranged on described moving sleeve and decides between the sleeve.

In specific embodiment of the utility model, described upper end of deciding sleeve has several slots vertically; Be with a larynx hoop in this end.

On the sidewall of described moving sleeve, have several saturating grooves; Decide to have several screws on the close sidewall of bottom of sleeve described;

Be equipped with guide finger in the described screw of deciding lower cartridge and the saturating groove on the moving sleeve sidewall, this guide finger plays guiding and spacing.

The utility model is simple in structure, practical, and low cost of manufacture does not need original machine chuck and chuck handle are done any improvement, as long as the utility model is installed on the common chuck handle.The utility model can be guaranteed when operating personnel forget chuck handle to be ejected it when machine chuck takes off automatically in chuck, plays the effect of safety, insurance, does not influence the normal use of chuck handle simultaneously again.In addition, the user can dismantle as required at any time, and is easy to use.

Description of drawings

Fig. 1 is present common machine chuck spanner user mode figure;

Fig. 2 is the utility model chuck handle safeties decomposition texture schematic diagram;

Fig. 3 is the utility model chuck handle safeties and chuck handle assembling back structural representation;

Fig. 4 is the utility model chuck handle safeties sectional structure schematic diagram;

Fig. 5 is the utility model user mode figure.

The specific embodiment

The disclosed chuck handle safeties of the utility model are mainly formed by deciding sleeve, moving sleeve, spring three parts; Decide sleeve and be fastened to the position of chuck handle near the end; Moving sleeve is enclosed within to be decided in the sleeve, and decides the sleeve coaxial arrangement and can slide along the moving sleeve axis direction; Moving sleeve and decide to be provided with between sleeve spring.

Fig. 2 ∽ Fig. 4 is the utility model specific embodiment structural representation.As shown in the figure, the disclosed chuck handle safeties of the utility model assemble by deciding sleeve 4, spring 5, moving sleeve 6, guide finger 7 and larynx hoop 8.Moving sleeve 6 is enclosed within to be decided in the sleeve 4, decides between sleeve 4 and the moving sleeve 6 spring 5 to be installed, and decides to link to each other by guide finger 7 between sleeve 4 and the moving sleeve 6.Larynx hoop 8 is fastened in the upper end of deciding sleeve 4.

As shown in the figure, the upper end 9 of deciding sleeve 4 is inwardly crooked slightly, is installed in the spring of deciding between sleeve 4 and the moving sleeve 65 so that block.Have several slots 10 in the upper end of deciding sleeve 4 vertically, be enclosed within the upper end of deciding sleeve 4 when being tied tight, decide sleeve 4 ends and inwardly draw the surface that is pressed on chuck handle 2 in, with chuck handle 2 with decide sleeve 4 and tighten together with convenient larynx hoop 8.

On the sidewall of moving sleeve 6, have several saturating grooves 11, deciding to have several screws 12 on the sleeve 4 close sidewalls of bottom.When moving sleeve 6 be built in decide in the sleeve 4 after, guide finger 7 is passed the screw 12 of deciding sleeve 4 bottoms and the saturating groove 11 on moving sleeve 6 sidewalls, and tightens guide finger 7.When moving sleeve 6 was being decided to slide up and down in the sleeve 4, guide finger 7 played guiding and spacing.In specific embodiment of the utility model, this guide finger 7 is the screw of standard.

Before use, earlier the chuck handle safeties are assembled; Then, unclamp larynx hoop 8; As shown in Figure 3, Figure 4, chuck handle 2 is passed decide sleeve 4 and moving sleeve 6; Tighten larynx hoop 8, chuck handle 2 and chuck handle safeties are fixed together.When chuck handle did not insert in the bayonet socket of machine chuck, spring 5 was pushed out to its outer rim with moving sleeve 6 and flushes with the square toes of chuck handle 2 substantially.

During use, as shown in Figure 5, the chuck handle that has the chuck handle safeties 2 that firmly will assemble inserts in the bayonet socket of chuck 1; This moment, moving sleeve 6 withstood on the shoulder of chuck bayonet socket, under the effect of power, spring 5 in the chuck handle safeties is compressed as shown in Figure 4, moving sleeve 6 is pressed into to be decided in the sleeve 4, the head of the chuck handle 2 that exposes just inserts in the bayonet socket of chuck 1, reaches clamping/or the purpose of unclamping workpiece to be machined by rotary chuck spanner 2.Behind end of operation, reducing of the active force that chuck handle is applied along with the operator, under the effect of the elastic force that spring 5 is put aside, moving sleeve 6 is ejected in the sleeve 4 from deciding, when moving sleeve 6 ejects in deciding sleeve 4, moving sleeve 6 ejects chuck handle 2 in the bayonet socket of chuck 1, thereby realize that operating personnel are after the workpiece to be machined that is installed finishes, automatically chuck handle is ejected from machine chuck, chuck handle is separated with chuck, prevent that chuck handle is retained in the goal of the invention on the machine chuck.

The disclosed chuck handle safeties of the utility model have successfully solved the dangerous problem of being brought because of the misoperation chuck handle, and have the following advantages:

1, simple in structure, practical, low cost of manufacture.

Move, decide sleeve and adopt working of plastics, larynx hoop, guide finger are standard component, and complete cost is lower than 5 yuans.

2, profile is light and handy, and spring rate is reasonable in design, does not influence the normal use of spanner.

3, can not damage chuck handle itself, loading and unloading easily.

The utility model can be widely used in occasions such as student's production practice, machined intensive enterprise, guarantees the safety of labourer and machine tool.

The above is specific embodiment of the utility model and the know-why used, and is any based on the equivalent transformation on the technical solutions of the utility model basis, all belongs within the utility model protection domain.

Claims

1, a kind of chuck handle safeties is characterized in that: it is formed by deciding sleeve, moving sleeve, spring three parts;

2, chuck handle safeties according to claim 1 is characterized in that: described upper end of deciding sleeve has several slots vertically; Be with a larynx hoop in this end.

3, chuck handle safeties according to claim 1 and 2 is characterized in that: have several saturating grooves on the sidewall of described moving sleeve; Decide to have several screws on the close sidewall of bottom of sleeve described;

In the described screw of deciding lower cartridge and the saturating groove on the moving sleeve sidewall, be equipped with guide finger.

4, chuck handle safeties according to claim 3 is characterized in that: described guide finger is the screw of standard.