CN111776801A - A flat push type safety chuck - Google Patents

Abstract

The invention relates to a flat-pushing type safety chuck, which belongs to the technical field of clamping equipment in the curling industry and comprises a guide shaft, a bearing assembly, a push disc assembly and a mounting flange. The guide shaft is provided with a guide groove. The bearing component is provided with a clamping opening for bearing the winding shaft. The clamping block slides into the clamping opening along the guide groove in the axial direction of the guide shaft to form clamping on the crimping shaft, and the clamping opening can be opened along the guide groove to slide out of the clamping opening to place the crimping shaft to be clamped. The mounting flange can be rotationally sleeved on the guide shaft, the first deviation piece is matched with the second deviation piece on the push disc assembly, when the guide shaft is rotated, the relative rotation of the push disc assembly and the mounting flange is converted into the translational sliding of the push disc assembly in the axial direction of the guide shaft, and the clamping block is guided to automatically reset to clamp the winding shaft. The design and the processing of accepting subassembly and grip block in this application are all very simple, practice thrift cost and process time, and the degree of depth that crimp shaft was placed is not influenced to the centre gripping mode of while flat push formula.

Description

A flat push type safety chuck

technical field

The invention relates to the technical field of clamping equipment in the curling industry, in particular to a flat push type safety chuck.

Background technique

In the crimping industry, the clamping of the crimping shaft is generally the use of oblique push-type safety chucks. The working principle is as follows: turn the safety chuck to the designated position, push the safety chuck diagonally, put the winding shaft with the coiled material into the clamping opening of the safety chuck, and then manually close the safety chuck or pass the drive shaft. Drive the winding shaft to rotate together to achieve reset; when it is necessary to replace the coil material, turn the safety chuck to the designated position again, open the safety chuck, and replace the new shaft.

This oblique push type safety chuck has the following defects:

1. The safety chuck and the winding shaft have certain requirements for cooperation. When the oblique push design is adopted, the requirements for angle processing are higher, which increases the processing cost;

2. Restricted by the rotation angle, the depth of the curling shaft into the safety chuck is limited, which affects the load on the curling shaft and affects the processing concentricity of the curling shaft.

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art, especially for the problem that the oblique push type is difficult to design and affects the insertion depth of the curling shaft, the present invention provides a flat push type safety chuck, which drives the clamping block along the guide through the main body of the push plate. The guide groove of the shaft slides out or slides into the clamping opening, so as to place the winding shaft or clamp the winding shaft, the processing design is simple, and the insertion depth of the winding shaft is not affected.

The technical solution to achieve the above purpose is:

The present invention provides a flat push type safety chuck, wherein the flat push type safety chuck includes:

a guide shaft, wherein one end of the guide shaft is provided with a guide groove along the axial direction;

a receiving component, wherein the receiving component is partially embedded in the guide shaft, and the receiving component is radially provided with a clamping port communicating with the guide groove;

A push plate assembly, wherein the push plate assembly includes a push plate body and a clamping block, the push plate body is axially slidably sleeved on the guide shaft, and the clamping block is mounted on the push plate body , and the clamping block is axially slidably installed in the guide groove, so that when the main body of the push plate slides axially toward the receiving assembly or away from the receiving assembly, the clamping block slide axially into or out of the clamping opening; and

A mounting flange, wherein the mounting flange is rotatably sleeved on the guide shaft, and a first deflection piece is mounted on the side of the mounting flange close to the push plate assembly, and the push plate assembly is close to the push plate assembly. A second deflection piece matched with the first deflection piece is installed on one side of the mounting flange, wherein when the second deflection piece rotates relative to the first deflection piece, the push plate main body guides the second deflection piece. The clamping block slides into the clamping opening in the axial direction along the guide groove.

In the invention of the present application, after the push-type safety chuck is fixed on the frame through the mounting flange, a clamping cavity for clamping the winding shaft is formed by the receiving assembly and the clamping block. Push the main body of the push plate so that it drives the clamping block away from the receiving assembly to open the clamping opening, and the curling shaft can be placed in the clamping opening of the receiving assembly; rotate the guide shaft to drive the main body of the push plate to rotate through the guide shaft, so that the push plate assembly is relatively opposite to each other. The rotation of the mounting flange can convert this relative rotation into the main body of the push plate to drive the clamping block to slide in the axial direction along the guide groove, so as to slide into the clamping opening, thereby closing the clamping opening to clamp the curling shaft in the axial direction. in the clamping cavity.

The flat push-type safety chuck provided by the invention of the present application makes the design and processing of the receiving component and the clamping block simpler, which can effectively save processing time and reduce processing cost. In addition, due to the flat-push clamping design, the clamping opening can be fully opened, and the placement depth of the curling shaft in the clamping opening is not affected in any way. ensure.

Further, the bearing assembly is detachably connected to the guide shaft, so as to facilitate the replacement of the bearing assembly.

Further, the clamping block is detachably connected to the main body of the push plate, so as to facilitate the replacement of the clamping block.

Further, the outer ring of the guide shaft close to one end of the bearing assembly is provided with at least one guide groove in the axial direction, and the two ends of the guide groove are respectively provided with a spherical first positioning groove and a second positioning groove of the same size. groove;

The main body of the push plate is provided with an installation hole that penetrates through the outer ring to the inner ring of the main body of the push plate, and a set screw, a spring and a positioning ball are installed in the installation hole in sequence, and the set screw is screwed to the an installation hole, the positioning bead is matched with the first positioning groove, so that when the clamping block opens the clamping opening, the positioning bead is located in the second positioning groove, and is located in the second positioning groove. When the clamping block closes the clamping opening, the positioning bead is located in the first positioning groove. When the push plate body is pushed to open the clamping opening, the push plate body is fixed at the position of the second positioning groove by the positioning bead, which facilitates the placement of the curling shaft in the clamping opening; and when the push plate assembly is reset to the clamping opening, The main body of the push plate is fixed at the position of the first positioning groove by the positioning bead, so that the clamping block is fixed at the position of the clamping opening to form the clamping of the winding shaft.

Further, the bearing assembly includes a limit plate and a bearing shaft integrally connected in a T-shaped cross section, the bearing shaft is embedded in the guide shaft, and the limit plate protrudes from the outer ring of the guide shaft;

An outer ring of the guide shaft close to one end of the receiving assembly is provided with at least one guide groove in the axial direction, and both ends of the guide groove are respectively provided with a spherical first positioning groove and a second positioning groove of the same size;

The main body of the push plate is provided with an installation hole that penetrates through the outer ring to the inner ring of the main body of the push plate, and a set screw, a spring and a positioning ball are installed in the installation hole in sequence, and the set screw is screwed to the an installation hole, the positioning bead is matched with the first positioning groove, so that when the clamping block opens the clamping opening, the positioning bead is located in the second positioning groove, and is located in the second positioning groove. When the clamping block closes the clamping opening, the limiting plate is abutted on the push plate assembly, and the positioning bead is located at the bottom of the first positioning groove and the first positioning groove. The groove is away from the groove wall between the grooves at one end of the limiting plate. When the push plate body is pushed to open the clamping opening, the push plate body is fixed at the position of the second positioning groove by the positioning bead, which facilitates the placement of the curling shaft in the clamping opening; and when the push plate assembly is reset to the clamping opening, The main body of the push plate is connected to the limit plate and is limited by the limit plate, and the positioning bead is located on the groove wall of the first positioning groove. Under the action of the positioning bead, there is always a restoring force towards the axial direction of the groove bottom, so that the push plate assembly is tightly fixed, so that the clamping block forms a more stable clamping of the winding shaft.

Further, the limiting plate is a circular plate arranged coaxially with the guide shaft, and the outer diameter of the circular plate is larger than the outer diameter of the guide shaft. In order to facilitate the processing of the limit plate, and at the same time, the blocking effect of the limit plate on the main body of the push plate is more stable.

Further, one end of the first deflection piece close to the push plate assembly is triangular;

The second deflection piece is in the shape of a circular ring, and the second deflection piece is provided with a triangular opening that is gradually opened toward the mounting flange.

Further, the first deflection piece is annular, and the first deflection piece is provided with a triangular opening that gradually opens toward the push plate assembly;

One end of the second deflection piece close to the mounting flange is triangular.

Further, the side of the push plate assembly away from the receiving assembly is also fixedly provided with a dustproof ring, the dustproof ring is coaxially arranged with the guide shaft, and the inner diameter of the dustproof ring is larger than that of the first The outer ring of the two offset pieces. In order to avoid dust or sundries entering the clamping port, it will affect the clamping accuracy of the clamping port.

Further, the diameter of the clamping opening is not larger than the diameter of the guiding groove, so that the curling shaft can be directly put into the clamping opening through the guiding groove.

Description of drawings

FIG. 1 is an exploded schematic diagram of a push-type safety chuck according to a preferred embodiment of the present application.

FIG. 2 is a schematic exploded view of the push-type safety chuck in another direction according to a preferred embodiment of the present application.

FIG. 3 is a schematic structural diagram of a preferred embodiment of the present application when the push-type safety chuck is completely closed.

FIG. 4 is a schematic structural diagram of a preferred embodiment of the present application when the push-type safety chuck is partially closed.

FIG. 5 is an exploded schematic diagram of a push-type safety chuck according to a preferred embodiment of the present application.

FIG. 6 is a schematic diagram of the positional relationship of the positioning beads after the push plate assembly is reset in the present application.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 4 , the present invention provides a flat push type safety chuck, wherein the flat push type safety chuck includes: a guide shaft 1 , a receiving component 2 , a push plate component 3 and a mounting flange 4 .

The left end of the guide shaft 1 is provided with a guide groove 11 along the axial direction. Preferably, the cross section of the guide groove 11 is an inverted trapezoid, so as to facilitate the processing of the guide groove 11 and the following clamping block 31 .

The receiving component 2 is partially embedded in the guide shaft 1 , and the receiving component 2 is radially provided with a clamping port 21 that communicates with the guide groove 11 to clamp the curling shaft. The shape of the clamping opening 21 may be a square, a triangle or other irregular rhombus, which is not specifically limited herein.

The push plate assembly 3 includes a push plate body 301 and a clamping block 31 , the push plate body 301 is axially slidably sleeved on the guide shaft 1 , and the clamping block 31 is installed on the push plate The main body 301, and the clamping block 31 is axially slidably installed in the guide groove 11, so that the push plate assembly 3 can slide toward the receiving assembly 2 or away from the receiving assembly 2 in the axial direction. , the clamping block 31 slides into or out of the clamping opening 21 in the axial direction. The main body 301 of the push plate slides in the axial direction of the guide shaft 1 , which can directly drive the clamping block 31 to slide in translation in the guide groove 11 .

The mounting flange 4 is rotatably sleeved on the guide shaft 1 , the left side of the mounting flange 4 is mounted with a first deflection piece 41 , and the right side of the push plate assembly 3 is mounted with the The second deflection piece 32 matched with the first deflection piece 41, wherein when the second deflection piece 32 rotates relative to the first deflection piece 41, the push plate body 301 guides the clamping block 31 along the The guide groove 11 slides into the clamping opening 21 in the axial direction.

Preferably, the left end of the first deflection piece 41 is triangular;

The second deflection piece 32 is annular, and the second deflection piece 32 is provided with a triangular opening that is gradually opened toward the mounting flange 4 . Since the first deflection member 41 only rotates relative to the guide shaft 1, and the second deflection member 32 only slides axially relative to the guide shaft 1, under the cooperation of the triangle and the triangular opening, the relative rotation of the two will force the second deflection member 32 to rotate relative to the guide shaft 1. The deflection piece 32 slides leftward on the guide shaft 1 and slides into the clamping opening 21 .

Considering that as long as the first deflection member 41 and the second deflection member 32 rotate relative to each other, the second deflection member 32 can be driven to slide axially. In the present application, the first deflection piece can also be arranged in a circular ring shape, and the first deflection piece is provided with a triangular opening that gradually opens toward the push plate assembly, and the right end of the second deflection piece is formed into a circular shape. triangle.

In the invention of the present application, the flat push-type safety chuck is generally fixed on the mounting plate of the frame through the mounting flange 4 . A clamping cavity for clamping the winding shaft is formed by the receiving assembly 2 and the clamping block 31 . The main body 301 of the push plate is pushed to drive the clamping block 31 away from the receiving assembly 2 to open the clamping opening 21 , and the curling shaft can be placed in the clamping opening 21 of the receiving assembly 2 ; When the push plate body 301 rotates, since the mounting flange 4 is fixed, the push plate body 301 is axially slidably sleeved on the guide shaft 1. When the second deflection member 32 rotates relative to the first deflection member 41, the clamping The block 31 will be driven by the push plate body 301 to slide into the clamping opening 21 along the guide groove 11 in the axial direction, thereby closing the clamping opening 21 to clamp the winding shaft in the clamping cavity.

Considering that after long-term use of the safety collet, the accuracy of the clamping port 21 of the receiving assembly 2 and the precision of the side of the clamping block 31 facing the winding shaft may be affected, and direct replacement of the entire safety collet will result in a waste of resources and increased costs. In this application, the receiving assembly 2 is detachably connected with the guide shaft 1 . The clamping block 31 is detachably connected to the push plate main body 301 . When the accuracy of the receiving assembly 2 and the clamping block 31 is insufficient, they can be disassembled and replaced respectively.

Preferably, a dust-proof ring 5 is fixed on the right side of the push plate assembly 3 , the dust-proof ring 5 is coaxially arranged with the guide shaft 1 , and the inner diameter of the dust-proof ring 5 is larger than that of the first The outer ring of the two offset pieces 32 . When the push plate assembly 3 moves to the guide groove 11 of the guide shaft 1, the second deviation member 32 is covered by the dustproof ring 5 to prevent the dust or debris on the right side of the push plate assembly 3 from entering the guide groove 11, so as to ensure the clamping The machining accuracy of the socket 21 is not affected, so as to improve the service life of the receiving component 2 .

Preferably, the diameter of the clamping opening 21 is not larger than the diameter of the guiding groove 11 , so that the curling shaft can be directly put into the clamping opening 21 through the guiding groove 11 .

As one of the preferred embodiments of the present application, the outer ring of the left end of the guide shaft 1 is provided with a guide groove 12 in the axial direction. The left end of the guide groove 12 is provided with a spherical first positioning groove 121 . The right end of the guide groove 12 is provided with a second positioning groove 122 of the same size;

The push plate body 301 is provided with a mounting hole 33 penetrating through the outer ring to the inner ring of the push plate body 301. A set screw 331, a spring and a positioning ball 332 are installed in the mounting hole 33 in sequence. The screw 321 is screwed into the mounting hole 33 , and the positioning ball 332 is matched with the first positioning groove 121 and/or the second positioning groove 122 to open the clamping block 31 . When the opening 21 is closed, the positioning bead 332 is located in the second positioning groove 122, and when the clamping block 31 closes the clamping opening 21, the positioning bead 332 is located in the first positioning groove in the groove 121. When the push plate assembly 3 is pushed to open the clamping opening 21, the push plate body 301 is fixed at the position of the second positioning groove 122 by the positioning bead 332, which facilitates the placement of the curling shaft in the clamping opening 21; When returning to the clamping opening 21 , the main body 301 of the push plate is fixed at the position of the first positioning groove 121 by the positioning balls 332 , so that the clamping block 31 is fixed at the position of the clamping opening 21 , thereby clamping the winding shaft.

Considering that when the clamping block clamps the winding shaft, it is only limited by the cooperation between the positioning bead and the first positioning groove, and the positioning bead may shake in the first positioning groove, which affects the clamping and fixing of the winding shaft. . Another preferred embodiment of the present application is proposed. Referring to FIG. 5 and FIG. 6 , the bearing assembly 2 includes a limit plate 22 and a bearing shaft 23 that are integrally connected in a T-shaped cross-section, and the bearing shaft 23 is embedded in On the guide shaft 1, the limiting plate 22 protrudes from the outer ring of the guide shaft 1;

The outer ring of the left end of the guide shaft 1 is provided with a guide groove 13 along the axial direction, the left end of the guide groove 13 is provided with a spherical first positioning groove 131, and the right end is provided with a second positioning groove 132 of the same size;

The push plate body 301 is provided with a mounting hole 34 penetrating through the outer ring to the inner ring of the push plate body 301 . A set screw 341 , a spring and a positioning ball 342 are sequentially installed in the mounting hole 34 . The screw 341 is screwed into the mounting hole 34 , and the positioning ball 342 is matched with the first positioning groove 131 and/or the second positioning groove 132 to open the clamping at the clamping block 31 When the clamping port 21 is closed, the positioning bead 342 is located in the second positioning groove 132, and when the clamping block 31 closes the clamping port 21, the limiting plate 22 abuts against the pusher The disk assembly 3 is installed, and the positioning bead 342 is located on the groove wall between the groove bottom of the first positioning groove 131 and the notch at the end of the first positioning groove 131 away from the limiting plate 22 . When the push plate assembly 3 is pushed to open the clamping opening 21, the push plate body 301 is fixed at the position of the second positioning groove 132 by the positioning balls 342, which facilitates the placement of the curling shaft in the clamping opening 21; When reset to the clamping port 21 , the positioning ball 342 is located on the groove wall of the first positioning groove 131 . Under the continuous pressing force FY of the set screw 341 and the spring on the positioning bead 342, and at the same time the contact surface provides the support force FN of the vertical contact surface, the positioning bead 342 will form a resultant force F along the tangential direction of the contact point to _reset to drive the positioning bead 342 With the push plate body 301 walking towards the bottom of the first positioning groove 131, since the push plate body 301 is blocked and limited by the limit plate 22 at the same time, under the simultaneous action of the reset force and the limit plate 22, the push plate body 301 It will be firmly fixed, so that the clamping block 31 can form a more stable clamping for the winding shaft without shaking.

Preferably, the limiting plate 22 is a circular plate coaxial with the guide shaft 1 , and the outer diameter of the circular plate is larger than the outer diameter of the guide shaft 1 . This facilitates the processing of the limiting plate 22 and at the same time makes the blocking effect of the limiting plate 22 on the push plate body 301 more stable.

The above specific embodiments are only preferred embodiments of this creation, and are not intended to limit this creation. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this creation shall be included in this creation. within the scope of protection.

Claims (10)

1. A flat-push type safety clip, wherein the flat-push type safety clip comprises:

the guide shaft is provided with a guide groove at one end along the axial direction;

the bearing assembly is partially embedded in the guide shaft and is provided with a clamping opening communicated with the guide groove along the radial direction;

the push disc assembly comprises a push disc main body and a clamping block, the push disc main body is axially slidably sleeved on the guide shaft, the clamping block is mounted on the push disc main body, and the clamping block is axially slidably mounted in the guide groove, so that when the push disc main body axially slides towards the bearing assembly or back to the bearing assembly, the clamping block axially slides into or slides out of the clamping opening; and

a mounting flange, wherein mounting flange rotationally the cover is located the guiding axle, mounting flange is close to one side of pushing away the dish subassembly is installed first skew piece, it is close to push away the dish subassembly one side of mounting flange install with first skew piece matched with second skew piece, wherein, it is relative that the second is skew piece when first skew piece rotates, it guides to push away the dish main part the grip block is followed the guide way slides in at the axial the centre gripping mouth.

2. A flat push safety chuck according to claim 1, wherein said receiver assembly is removably connected to said guide shaft.

3. A flat push safety cartridge as claimed in claim 1, wherein said clamping block is removably connected to said push plate body.

4. A flat-push type safety chuck according to claim 1, wherein the outer ring of the guide shaft near one end of the receiving member is provided with at least one guide groove along the axial direction, and both ends of the guide groove are respectively provided with a spherical first positioning groove and a spherical second positioning groove of the same size;

the push away set main part is equipped with and runs through the mounting hole of outer lane to inner circle of push away set main part, install holding screw, spring and location pearl in the mounting hole in proper order, holding screw spiro union in the mounting hole, the location pearl with first positioning groove cooperatees, with the grip block is opened during the centre gripping mouth, the location pearl is located in the second positioning groove, and with the grip block is closed during the centre gripping mouth, the location pearl is located in first positioning groove.

5. A flat-push type safety chuck according to claim 1, wherein the receiving member includes a limiting plate and a receiving shaft integrally connected with each other in a T-shaped cross section, the receiving shaft is embedded in the guide shaft, and the limiting plate protrudes from an outer ring of the guide shaft;

the outer ring of one end of the guide shaft close to the bearing assembly is axially provided with at least one guide groove, and two ends of the guide groove are respectively provided with a spherical first positioning groove and a spherical second positioning groove which are the same in size;

the push away set main part is equipped with and runs through the mounting hole of outer lane to inner circle of push away set main part, install in the mounting hole in proper order and tightly decide screw, spring and location pearl, tightly decide the screw spiro union in the mounting hole, the location pearl with first positioning groove cooperatees, with the grip block is opened during the centre gripping mouth, the location pearl is located in the second positioning groove, and with the grip block is closed during the centre gripping mouth, the spacing board top connect in push away set main part, just the location pearl is located the tank bottom of first positioning groove with first positioning groove is kept away from cell wall between the notch of limiting plate one end.

6. A flat push type safety chuck according to claim 5, wherein said stopper plate is a circular plate coaxially disposed with said guide shaft, and an outer diameter of said circular plate is larger than an outer diameter of said guide shaft.

7. A flat push safety cartridge as claimed in claim 1, wherein said first biasing member is triangularly shaped proximate an end of said push plate assembly;

the second deviation piece becomes the ring shape, just the second deviation piece is equipped with towards the triangle opening that mounting flange direction opened gradually.

8. A flat push safety cartridge as claimed in claim 1, wherein said first biasing member is annular in shape and is provided with a triangular opening which opens gradually in the direction of the push disc assembly;

the second biasing member is triangularly shaped proximate an end of the mounting flange.

9. A flat push type safety chuck according to claim 7 or 8, wherein a dust ring is further fixedly disposed on a side of the push disk assembly away from the receiving assembly, the dust ring is coaxially disposed with the guide shaft, and an inner diameter of the dust ring is larger than an outer ring of the second deviating member.

10. A flat-push type safety chuck according to claim 1, wherein the caliber of said holding opening is not larger than the caliber of said guide groove.

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