CN217424234U

CN217424234U - Detection tool for detecting included angle of side hole of shaft core

Info

Publication number: CN217424234U
Application number: CN202220008033.0U
Authority: CN
Inventors: 潘蛟龙; 冯亮亮; 江坤; 廖璐
Original assignee: Qijing Machinery Co Ltd
Current assignee: Qijing Machinery Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-09-13
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a checking fixture for detecting included angle of side hole of shaft core, which comprises a base, a fixed cylinder and a movable sleeve, wherein the fixed cylinder is fixedly arranged on the base, the fixed cylinder is provided with an accommodating cavity with an opening at the upper end, the bottom of the fixed cylinder is provided with a supporting structure, and the side wall of the fixed cylinder is provided with a plurality of pore canals; a positioning head which is in sliding fit with the pore channel is arranged in the pore channel, two ends of the positioning head are of hemispherical structures, a limiting step is arranged at the inner end of the fixed cylinder, which corresponds to the pore channel, and an elastic part is arranged between the limiting step and the positioning head; the movable sleeve can be followed fixed cylinder endwise slip, be equipped with the lumen between movable sleeve and the fixed cylinder, the upper end that the movable sleeve corresponds the lumen is equipped with the top portion of pushing away that is equipped with the promotion with the location head towards holding the chamber, leave the interval between the bottom of movable sleeve and the base, the butt has the spring between movable sleeve and the base, fixed cylinder is equipped with limit structure with the movable sleeve, prevent the fixed cylinder of movable sleeve roll-off through limit structure, whether the side opening contained angle that comes the detection axle core through the upper and lower slip of movable sleeve is qualified, and it is comparatively convenient to operate.

Description

Detection tool for detecting included angle of side hole of shaft core

Technical Field

The utility model relates to an examine technical field of utensil, in particular to examine utensil of detecting axle center side opening contained angle.

Background

Its outer wall of axle core in electric tool's the field is equipped with the multiunit side opening that circumference set up, and this axle core need detect the contained angle of this side opening when quality control, need use specific utensil of examining promptly to carry out quality control to the contained angle of each side opening of axle core, and whether qualified time operation is comparatively loaded down with trivial details in the side opening that detects the axle core to current utensil of examining, consequently, need design a section can carry out the utensil of examining that detects to the side opening contained angle of axle core fast.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detect examining utensil of axle core side opening contained angle, whether the contained angle that slides the side opening that detects the axle core through the upper and lower of movable sleeve is qualified, and it is comparatively convenient and the rate of accuracy higher to operate.

The above technical purpose of the present invention can be achieved by the following technical solutions: a detection tool for detecting an included angle of a side hole of a shaft core comprises a base, a fixed cylinder and a movable sleeve, wherein the fixed cylinder is fixedly arranged on the base and is provided with a containing cavity with an opening at the upper end, the containing cavity is used for the shaft core to extend into, a supporting structure for supporting the shaft core is arranged at the bottom of the fixed cylinder, a plurality of hole channels which are circumferentially arranged and communicated with the containing cavity are arranged on the side wall of the fixed cylinder, and the number of the hole channels corresponds to the number of the side holes of the shaft core; a positioning head which is in sliding fit with the pore channel is arranged in the pore channel, two ends of the positioning head are respectively of a hemispherical structure, a limiting step is arranged at the inner end of the fixed cylinder corresponding to the pore channel, and an elastic part is arranged between the limiting step and the positioning head in a propping manner; the periphery of a fixed section of thick bamboo is located to the movable sleeve cover and can be along a fixed section of thick bamboo axial slip, be equipped with the ring chamber that supplies the first part of location to stretch out the pore between movable sleeve and the fixed section of thick bamboo, the upper end that the movable sleeve corresponds the ring chamber is equipped with the top portion of pushing away that is equipped with the promotion with the location head towards holding the chamber, leave the interval between the bottom of movable sleeve and the base, the butt has the spring between movable sleeve and the base, a fixed section of thick bamboo and movable sleeve are equipped with limit structure, prevent the fixed section of thick bamboo of movable sleeve roll-off through limit structure.

Further, the movable sleeve comprises an upper sleeve shell and a lower sleeve shell which is connected with the upper sleeve shell in a threaded mode, when the movable sleeve is located at the initial position, the outer end of the positioning head abuts against the inner wall of the upper sleeve shell, the pushing portion is arranged at the top of the upper sleeve shell, and when the upper sleeve shell moves downwards, the pushing portion can push the positioning head towards one side of the containing cavity.

Furthermore, limit structure includes the radial protruding first spacing ring of locating the fixed cylinder periphery, the lower shell is equipped with the spacing complex second spacing ring with first spacing ring.

Furthermore, the upper end of the spring acts on the second limiting ring, and the lower end of the spring acts on the base.

Furthermore, the inner diameter of the pushing part of the movable sleeve is matched with the outer diameter of the fixed cylinder, and the inner wall of the pushing part of the movable sleeve is connected with the inner wall of the annular cavity through an inclined part.

Furthermore, the cavity penetrates through the upper end and the lower end of the fixed cylinder, the supporting structure is detachably arranged at the position, corresponding to the bottom of the cavity, of the fixed cylinder, and when the bottom of the shaft core is abutted to the supporting piece, the height of the side hole of the shaft core corresponds to the height of the positioning head.

Furthermore, the upper end of the fixed cylinder is provided with notches which correspond to the pore channels one by one.

To sum up, the utility model discloses following beneficial effect has:

the utility model provides a detect utensil of examining of axle center side opening contained angle, whether the contained angle that slides the side opening that detects the axle center through the upper and lower of movable sleeve is qualified, and it is comparatively convenient and the rate of accuracy is higher to operate, and concrete operation process is as follows:

1. an operator corresponds the side hole of the shaft core to be inspected with the notch and inserts the shaft core into the containing cavity;

2. pressing the movable sleeve downwards, wherein if the movable sleeve can move downwards to a reference position (namely the movable sleeve moves downwards to a position of the pushing part corresponding to the pore channel), the shaft core is qualified; if the movable sleeve cannot move down to the reference position (due to the fact that the included angle of the side hole of the shaft core is unqualified, at least one positioning head cannot extend into the corresponding side hole, and the movable sleeve cannot move down to the reference position), the shaft core is unqualified.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the movable sleeve of the present invention at the initial position.

Fig. 3 is a schematic view of the present invention showing the movable sleeve in the reference position.

Fig. 4 is a schematic structural view of the shaft core of the present invention.

In the figure: 1. a base; 2. a fixed cylinder; 21. a cavity; 211. a support structure; 22. a duct; 23. positioning the head; 24. a limiting step; 25. an elastic member; 26. a first limit ring; 27. a notch; 3. a movable sleeve; 31. an upper housing shell; 32. a lower housing shell; 321. a second stop collar; 33. an annular cavity; 34. a pushing part; 35. an inclined portion; 4. a shaft core; 41. a side hole; 5. a spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-4, a detection tool for detecting an included angle of a side hole of a shaft core comprises a base 1, a fixed cylinder 2 and a movable sleeve 3, wherein the fixed cylinder 2 is fixedly arranged on the base 1.

The fixing cylinder 2 is provided with a containing cavity 21 with an opening at the upper end, the containing cavity 21 is used for the shaft core 4 to extend into, a supporting structure 211 used for supporting the shaft core 4 is arranged at the bottom of the fixing cylinder 2, a plurality of hole channels 22 which are circumferentially arranged and communicated with the containing cavity 21 are arranged on the side wall of the fixing cylinder 2, the number of the hole channels 22 corresponds to the number of the side holes 41 of the shaft core 4, specifically, when the number of the side holes 41 of the shaft core 4 is four, the fixing cylinder 2 with four hole channels 22 is selected as the detection tool, and when the number of the side holes 41 of the shaft core 4 is six, the fixing cylinder 2 with six hole channels 22 is selected as the detection tool.

Be equipped with in the pore 22 with pore 22 sliding fit's location head 23, the both ends of location head 23 are hemispherical structure respectively, the spherical structure matches with the shape of axle core 4 side hole 41, the inner that a fixed section of thick bamboo 2 corresponds pore 22 is equipped with spacing step 24, support between spacing step 24 and the location head 23 and be equipped with elastic component 25, prevent through setting up spacing step 24 that location head 23 from falling into and hold the chamber 21.

The periphery of a fixed section of thick bamboo 2 and can be along a fixed section of thick bamboo 2 endwise slip are located to the movable sleeve 3 cover, be equipped with the ring chamber 33 that supplies location head 23 part to stretch out pore 22 between movable sleeve 3 and the fixed section of thick bamboo 2, the upper end that the movable sleeve 3 corresponds ring chamber 33 is equipped with the top portion 34 that pushes away that is equipped with the promotion with location head 23 towards holding the chamber 21, leave the interval between the bottom of movable sleeve 3 and the base 1, the butt has spring 5 between movable sleeve 3 and the base 1, and after movable sleeve 3 detected the completion, the operator loosened movable sleeve 3, and this movable sleeve 3 resets under spring 5's spring action, and then makes the operation more convenient.

The movable sleeve 3 comprises an upper sleeve shell 31 and a lower sleeve shell 32 which is connected with the upper sleeve shell 31 in a threaded mode, when the movable sleeve 3 is located at an initial position, the outer end of the positioning head 23 is abutted to the inner wall of the upper sleeve shell 31, the pushing portion 34 is arranged at the top of the upper sleeve shell 31, when the upper sleeve shell 31 moves downwards, the pushing portion 34 can push the positioning head 23 towards one side of the accommodating cavity 21, and the movable sleeve 3 is made to be convenient to produce and process by adopting a split type design, and is lower in cost.

Fixed cylinder 2 is equipped with limit structure with movable sleeve 3, prevents the fixed cylinder 2 of 3 roll-off of movable sleeve through limit structure, the utility model discloses in, limit structure includes radial protruding first spacing ring 26 of locating the 2 peripheries of fixed cylinder, the lower casing 32 is equipped with the spacing complex second spacing ring 321 with first spacing ring 26. The upper end of the spring 5 acts on the second limit ring 321, and the lower end of the spring 5 acts on the base 1.

The inner diameter of the pushing part 34 of the movable sleeve 3 is matched with the outer diameter of the fixed barrel 2, the inner wall of the pushing part 34 of the movable sleeve 3 is connected with the inner wall of the annular cavity 33 through the inclined part 35, the movable sleeve 3 is matched with the outer hemispherical structure of the positioning head 23 through the inclined part 35 to push the positioning head 23 to move towards one side of the accommodating cavity 21, when the movable sleeve 3 moves downwards to a reference position, namely the movable sleeve 3 moves downwards to a position, corresponding to the pore passage 22, of the pushing part, if the shaft core 4 is qualified, the outer end of the positioning head 23 can completely extend into the pore passage 22, and the inner end of the positioning head 23 can extend into the side hole 41 of the shaft core 4; if the shaft core 4 is not qualified (the included angles of the side holes 41 on the shaft core 4 are not qualified, that is, the included angles are not circumferentially uniformly distributed), because the inner end of a certain positioning head 23 cannot extend into the corresponding side hole 41, the outer end of the positioning head 23 cannot completely extend into the corresponding hole channel 22, and the movable sleeve 3 cannot move down to the reference position due to the entering.

The cavity 21 penetrates through the upper end and the lower end of the fixed cylinder 2, the supporting structure 211 is detachably arranged at the position, corresponding to the bottom of the cavity 21, of the fixed cylinder 2, and when the bottom of the shaft core 4 is abutted to the supporting piece, the height of the side hole 41 of the shaft core 4 corresponds to the height of the positioning head 23.

The upper end of the fixed cylinder 2 is provided with notches 27 corresponding to the pore canals 22 one by one, and before an operator inserts the shaft core 4 into the containing cavity 21, the position of the side hole 41 of the shaft core 4 is required to be adjusted to be corresponding to the position of the notch 27.

To sum up, the utility model discloses following beneficial effect has:

the utility model provides a detect utensil of examining of axle center side opening contained angle, whether the contained angle of sliding the side opening 41 that detects axle center 4 from top to bottom through movable sleeve 3 is qualified, and the operation is comparatively convenient and the rate of accuracy is higher, and concrete operation process is as follows:

1. an operator inserts the side hole 41 of the shaft core 4 to be tested into the cavity 21 corresponding to the notch 27;

2. pressing the movable sleeve 3 downwards, wherein if the movable sleeve 3 can move downwards to a reference position (namely, the movable sleeve 3 moves downwards to a position of the pushing part corresponding to the pore passage 22), the shaft core 4 is qualified; if the movable sleeve 3 cannot move down to the reference position (due to the unqualified included angle of the side hole 41 of the shaft core 4, at least one positioning head 23 cannot extend into the corresponding side hole 41, so that the movable sleeve 3 cannot move down to the reference position), the shaft core 4 is unqualified.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a detect utensil of examining of axle center side opening contained angle which characterized in that: the shaft core fixing device comprises a base (1), a fixing barrel (2) and a movable sleeve (3), wherein the fixing barrel (2) is fixedly arranged on the base (1), the fixing barrel (2) is provided with a cavity (21) with an opening at the upper end, the cavity (21) is used for a shaft core (4) to extend into, a supporting structure (211) used for supporting the shaft core (4) is arranged at the bottom of the fixing barrel (2), a plurality of pore channels (22) which are circumferentially arranged and communicated with the cavity (21) are arranged on the side wall of the fixing barrel (2), and the number of the pore channels (22) corresponds to the number of side holes (41) of the shaft core (4); a positioning head (23) which is in sliding fit with the pore channel (22) is arranged in the pore channel (22), two ends of the positioning head (23) are respectively of a hemispherical structure, a limiting step (24) is arranged at the inner end of the fixed cylinder (2) corresponding to the pore channel (22), and an elastic piece (25) is arranged between the limiting step (24) and the positioning head (23) in a propping manner; the utility model discloses a fixing device for the medical instrument, including fixed section of thick bamboo (2), movable sleeve (3), fixed section of thick bamboo (2) and fixed section of thick bamboo, the periphery of fixed section of thick bamboo (2) is located in movable sleeve (3) cover and can be along fixed section of thick bamboo (2) endwise slip, be equipped with between movable sleeve (3) and the fixed section of thick bamboo and supply the first (23) of location partly ring chamber (33) of stretching out pore (22), the upper end that movable sleeve (3) corresponds ring chamber (33) is equipped with top portion of pushing away (34) that is equipped with the promotion with location head (23) towards holding chamber (21), leave the interval between the bottom of movable sleeve (3) and base (1), the butt has spring (5) between movable sleeve (3) and base (1), fixed section of thick bamboo (2) and movable sleeve (3) are equipped with limit structure, prevent movable sleeve (3) roll-off fixed section of thick bamboo (2) through limit structure.

2. The inspection device for detecting the included angle of the side hole of the shaft core according to claim 1, characterized in that: the movable sleeve (3) comprises an upper sleeve shell (31) and a lower sleeve shell (32) which is connected with the upper sleeve shell (31) in a threaded mode, a pushing portion (34) is arranged at the top of the upper sleeve shell (31), when the movable sleeve (3) is located at an initial position, the outer end of the positioning head (23) is abutted to the inner wall of the upper sleeve shell (31), and when the upper sleeve shell (31) moves downwards, the pushing portion (34) can push the positioning head (23) towards one side of the cavity (21).

3. The inspection device for detecting the included angle of the side hole of the shaft core according to claim 2, characterized in that: the limiting structure comprises a first limiting ring (26) which is radially and convexly arranged on the periphery of the fixed cylinder (2), and a second limiting ring (321) which is in limiting fit with the first limiting ring (26) is arranged on the lower casing (32).

4. The inspection device for detecting the included angle between the side hole of the shaft core according to claim 3, characterized in that: the upper end of the spring (5) acts on the second limiting ring (321), and the lower end of the spring (5) acts on the base (1).

5. The inspection device for detecting the included angle of the side hole of the shaft core according to claim 1, characterized in that: the inner diameter of the pushing portion (34) of the movable sleeve (3) is matched with the outer diameter of the fixed barrel (2), and the inner wall of the pushing portion (34) of the movable sleeve (3) is connected with the inner wall of the annular cavity (33) through the inclined portion (35).

6. The inspection device for detecting the included angle of the side hole of the shaft core according to claim 1, characterized in that: the cavity (21) penetrates through the upper end and the lower end of the fixed cylinder (2), the supporting structure (211) can be detachably arranged at the position, corresponding to the bottom of the cavity (21), of the fixed cylinder (2), and when the bottom of the shaft core (4) is abutted to the supporting piece, the height of the side hole (41) of the shaft core (4) corresponds to the height of the positioning head (23).

7. The inspection device for detecting the included angle of the side hole of the shaft core according to any one of claims 1 to 6, wherein: the upper end of the fixed cylinder (2) is provided with notches (27) which correspond to the pore channels (22) one by one.