CN217596397U - Shell workpiece press-mounting and centering device - Google Patents
Shell workpiece press-mounting and centering device Download PDFInfo
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- CN217596397U CN217596397U CN202221272926.2U CN202221272926U CN217596397U CN 217596397 U CN217596397 U CN 217596397U CN 202221272926 U CN202221272926 U CN 202221272926U CN 217596397 U CN217596397 U CN 217596397U
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- guide sleeve
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- inner hole
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Abstract
The utility model provides a shell work piece pressure equipment centring means, the on-line screen storage device comprises a base, be provided with the through-hole in the base upper surface, be provided with the gag lever post in the through-hole, the base upside is provided with first tang, be provided with the second tang in the first tang, the height that highly is higher than the second tang of first tang, be provided with outer cone dabber in the second tang, be provided with the blind hole in the bottom surface of outer cone dabber, be provided with first spring in the blind hole, the lower extreme of first spring stretches out the blind hole and is connected with the base, outer cone dabber includes big footpath end and path end, the path end sets up the upside at big footpath end. Because the inner hole guide sleeve and the inner cone guide sleeve not only have the same inner conical surface, but also adopt concave-convex fit at the lower end of the inner hole guide sleeve and the upper end of the inner cone guide sleeve, the inner hole of the inner hole guide sleeve is matched with the small-diameter end of the outer cone mandrel, and the second conical surface of the inner cone guide sleeve is matched with the first conical surface of the outer cone mandrel in a centering manner, so that the stability and the reliability of centering the inner hole of the shell workpiece in the press fitting process can be ensured.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to assembly fixture, especially a shell work piece pressure equipment centring means.
Background
The press fitting tool is generally used for ensuring the coaxial precision of the axis of the inner hole of the shell workpiece and the axis of the shaft neck of the transmission workpiece in the press fitting process, and stably and reliably realizing the interference fit assembly of the shell and the transmission workpiece.
In the prior art, the press fitting tool has the following defects:
1. 3 steel balls on the tool radially extend out or retract back simultaneously to achieve centering, the length of an inner hole of the shell is shorter and only 2mm, the steel balls cannot reliably contact with the 3 steel balls which stretch out and draw back simultaneously, and centering precision is unreliable; the centering knot of the steel ball is not suitable for shell type thin-wall type tools, the length of an inner hole of the workpiece is short (namely the wall thickness of the shell), the steel ball cannot be stably contacted with the short inner hole, the centering precision is poor, and the requirement of mass production cannot be met.
2. The steel ball on the tool is in point contact with the shell workpiece, and is not in line contact or surface contact, so that stress points on the inner hole of the shell workpiece are concentrated, and the inner hole of the shell workpiece is deformed.
3. When 3 centering steel balls on the tool radially extend out to realize centering, the tool is driven by an air cylinder, air is required to be supplied all the time to keep pressure in the press-mounting process, and when the pressure of an air source on a user site is unstable or impact occurs, the user cannot reliably center.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a casing work piece pressure equipment centring means, this kind of casing work piece pressure equipment centring means will solve among the prior art casing work piece and the poor technical problem of transmission work piece assembly precision.
The utility model discloses a shell workpiece press-fitting and centering device, which comprises a base, wherein a through hole is arranged in the base, a limiting rod is arranged in the through hole, a first spigot is arranged at the upper side of the base, a second spigot is arranged in the first spigot, the height of the first spigot is higher than that of the second spigot, an outer cone mandrel is arranged in the second spigot, the upper end of the limiting rod extends into the bottom surface of the outer cone mandrel, a blind hole is arranged in the bottom surface of the outer cone mandrel, a first spring is arranged in the blind hole, the lower end of the first spring extends out of the blind hole and is connected with the base, the first spring biases the outer cone mandrel upwards, the outer cone mandrel comprises a large-diameter end and a small-diameter end, the small-diameter end is arranged at the upper side of the large-diameter end, the outer circumference of the large-diameter end is arranged as a first conical surface, an inner cone guide sleeve and an inner hole guide sleeve are sleeved at the outer side of the outer cone mandrel, the inner cone guide sleeve is arranged at the lower side of the guide sleeve, the inner circumferential surface of the inner cone guide sleeve is set to be a second conical surface, the second conical surface is matched with the first conical surface, the outer circumferential surface of the inner cone guide sleeve is matched with the inner circumferential surface of the first spigot, the inner circumferential surface of the lower end of the inner hole guide sleeve is set to be a third conical surface, the third conical surface is matched with the first conical surface, the inner circumferential surface of the inner hole guide sleeve is matched with the small-diameter end, the outer circumferential surface of the inner hole guide sleeve is matched with the inner circumferential surface of the first spigot, a convex block is arranged on the upper side of the inner cone guide sleeve, a groove is formed in the bottom surface of the inner hole guide sleeve, the inner cone guide sleeve is matched and connected with the inner hole guide sleeve through the convex block and the groove, a second spring is arranged between the inner cone guide sleeve and the inner hole guide sleeve, and the through hole, the limiting rod, the first spigot, the second spigot, the outer cone mandrel, the inner cone guide sleeve and the inner hole guide sleeve are coaxially arranged.
Furthermore, the number of the blind holes is more than two, and the blind holes are uniformly distributed along the circumferential direction of the outer cone mandrel.
Compared with the prior art, the utility model, its effect is positive and obvious. Because the inner hole guide sleeve and the inner cone guide sleeve not only have the same inner cone surfaces (a second cone surface and a third cone surface), but also adopt concave-convex matching (similar to a jaw clutch) at the lower end of the inner hole guide sleeve and the upper end of the inner cone guide sleeve, the outer circumferential surface of the inner hole guide sleeve and the outer circumferential surface of the inner cone guide sleeve simultaneously contact with the inner hole of the shell workpiece in the process of separating the inner hole guide sleeve from the inner hole of the shell workpiece and the process of entering and separating the inner cone guide sleeve from the inner hole of the shell workpiece, and the inner hole of the inner hole guide sleeve is matched with the small-diameter end of the outer cone mandrel, the second cone surface of the inner cone guide sleeve and the first cone surface of the outer cone mandrel realize centering matching, thereby ensuring the stability and the reliability of centering the inner hole of the shell workpiece in the press mounting process.
Drawings
Fig. 1 is a schematic view of the press-fitting and centering device for the casing workpiece of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the examples, and all similar structures and similar variations of the present invention can be adopted to fall into the protection scope of the present invention. The utility model provides an upper and lower, preceding, back, left and right equidirectional use only for the description convenience, it is not right the technical scheme's of the utility model restriction.
Example 1
As shown in FIG. 1, the centering device for press mounting of casing workpiece of the present invention comprises a base 1, a through hole 12 is disposed in the base 1, a limiting rod 2 is disposed in the through hole 12, a first spigot 13 is disposed on the upper side of the base 1, a second spigot 14 is disposed in the first spigot 13, the first spigot 13 is higher than the second spigot 14, an outer cone core shaft 4 is disposed in the second spigot 14, the upper end of the limiting rod 2 extends into the bottom surface of the outer cone core shaft 4, a blind hole 15 is disposed in the bottom surface of the outer cone core shaft 4, a first spring 3 is disposed in the blind hole 15, the lower end of the first spring 3 extends out of the blind hole 15 and is connected with the base 1, the first spring 3 biases the outer cone core shaft 4 upwards, the outer cone core shaft 4 comprises a large diameter end 16 and a small diameter end 17, the small diameter end 17 is disposed on the upper side of the large diameter end 16, the outer circumferential surface of the upper end of the large diameter end 16 is set as a first conical surface, an inner cone guide sleeve 6 and an inner hole guide sleeve 8 are sleeved on the outer side of the outer cone mandrel 4, the inner cone guide sleeve 6 is arranged on the lower side of the inner hole guide sleeve 8, the inner circumferential surface of the inner cone guide sleeve 6 is a second conical surface matched with the first conical surface, the outer circumferential surface of the inner cone guide sleeve 6 is matched with the inner circumferential surface of the first spigot 13, the inner circumferential surface of the lower end of the inner hole guide sleeve 8 is a third conical surface matched with the first conical surface, the inner circumferential surface of the inner hole guide sleeve 8 is matched with the small-diameter end 17, the outer circumferential surface of the inner hole guide sleeve 8 is matched with the inner circumferential surface of the first spigot 13, a convex block is arranged on the upper side of the inner cone guide sleeve 6, a groove is arranged in the bottom surface of the inner hole guide sleeve 8, the inner cone guide sleeve 6 is matched and connected with the inner hole guide sleeve 8 through the convex block and the groove, a second spring 7 is arranged between the inner cone guide sleeve 6 and the inner hole guide sleeve 8, the through hole 12, the limiting rod 2, the first spigot 13, the second spigot 14, the outer cone mandrel 4, the inner cone guide sleeve 6 and the inner hole guide sleeve 8 are coaxially arranged.
Furthermore, the number of the blind holes 15 is more than two, and the blind holes 15 are uniformly distributed along the circumferential direction of the outer cone mandrel 4.
The utility model discloses a casing work piece pressure equipment centring means for the interference fit pressure equipment of casing work piece 5 and transmission work piece 9.
As shown in fig. 1, the tool centering principle of the device is as follows:
And step 2, automatically placing the shell workpiece 5 and the transmission workpiece 9 by the robot.
The robot firstly puts the shell workpiece 5 on the tooling base 1 and is centered by the inner hole guide sleeve 8. Because the extension length of the outer circumferential surface of the inner hole guide sleeve 8 is 2-3 times of the length of the inner hole of the shell workpiece 5, the sufficient guide effect is realized, the shell workpiece 5 can be stably placed, and the shell workpiece 5 is prevented from deflecting.
Then the robot places the transmission workpiece 9 above the shell workpiece 5, the transmission workpiece 9 is sleeved on the small-diameter end 17 of the outer cone mandrel 4 and guided by the small-diameter end 17, and the outer circumferential surface of the small-diameter end 17 is long enough to sufficiently guide and center the transmission workpiece 9.
And 3, realizing interference fit (press fitting).
The pressing head 10 of the pressing machine moves downwards and is inserted into the guide inner hole of the transmission workpiece 9, after the pressing head 10 contacts the upper end face of the transmission workpiece 9, the transmission workpiece 9 is pushed to move downwards slowly, and then the transmission workpiece 9 pushes the inner hole guide sleeve 8 to move downwards. The inner hole guide sleeve 8 and the transmission workpiece 9 slide on the cylindrical surface of the small-diameter end 17 at the same time, so that the coaxial precision is ensured; the inner hole guide sleeve 8 slowly moves downwards to compress the second spring 7, and the second spring 7 compresses to a certain degree to push the inner cone guide sleeve 6 to move downwards. Because the inner hole guide sleeve 8 and the inner cone guide sleeve 6 have the same inner cone surfaces (the second cone surface and the third cone surface), and the lower end of the inner hole guide sleeve 8 and the upper end of the inner cone guide sleeve 6 are matched in a concave-convex mode (similar to a jaw clutch), in the process that the inner hole guide sleeve 8 is separated from the inner hole of the shell workpiece 5 and the process that the inner cone guide sleeve 6 enters and is separated from the inner hole of the shell workpiece 5, the outer circumferential surface of the inner hole guide sleeve 8 and the outer circumferential surface of the inner cone guide sleeve 6 are simultaneously contacted with the inner hole of the shell workpiece 5, the inner hole of the inner hole guide sleeve 8 is matched with the small-diameter end 17 of the outer cone mandrel 4, the second cone surface of the inner cone guide sleeve 6 is matched with the first cone surface of the outer cone mandrel 4 in a centering mode, and therefore stability and reliability of centering of the inner hole of the shell workpiece 5 in a press-fitting process can be guaranteed.
And 4, finishing press fitting, and resetting the centering piece.
After the press mounting action is completed, the pressure head 10 moves upwards to a safe position to stop, the limiting rod 2 moves upwards under the action of air pressure, the outer cone mandrel 4, the inner cone guide sleeve 6 and the inner hole guide sleeve 8 all move upwards, the lower end of the limiting rod 2 is limited, and the upper end position of the device is limited. And then grabbing the pressed workpiece by using a robot. And finishing the press fitting cycle, and preparing a centering state for press fitting of the next workpiece.
The utility model discloses an interior outer cone complex centering structure, the outside of outer cone dabber 4 is the high accuracy outer cylinder face, but interior awl uide bushing 6 and outer cone dabber 4 axial float, and the contact surface is big for face of cylinder contact at pressure equipment in-process hole uide bushing 8 and 5 holes of casing work piece, and the centering is reliable stable.
The utility model has the advantages that:
1. the utility model discloses an interference fit pressure equipment for casing work piece 5 and transmission work piece 9, stability and reliability are high.
2. The realization mode is ingenious, and the part is small in quantity, and the centering precision is high.
3. And no pneumatic pressure maintaining process is adopted in the centering process, and the centering is reliable and stable.
4. Compressed air is not needed in the centering process, air pressure impact noise is avoided, and the centering device is green, energy-saving and environment-friendly.
5. The inner cone guide sleeve 6 and the inner hole guide sleeve 8 form an inner cone body, the tooth-embedded concave-convex matching is adopted, and in the process that the second conical surface of the inner cone guide sleeve 6 and the third conical surface of the inner hole guide sleeve 8 sequentially contact with the first conical surface of the outer cone mandrel 4, the outer cylindrical surfaces of the inner cone guide sleeve 6 and the inner hole guide sleeve 8 simultaneously contact with the shell workpiece 5, so that the centering precision is improved.
6. The first spring 3 is used for driving centering in the press-fitting process, compressed air is not needed, the influence of air pressure fluctuation of the compressed air on centering precision is avoided, and reliable centering is guaranteed.
Claims (2)
1. The utility model provides a shell work piece pressure equipment centring means which characterized in that: comprises a base, a through hole is arranged in the base, a limiting rod is arranged in the through hole, a first spigot is arranged on the upper side of the base, a second spigot is arranged in the first spigot, the height of the first spigot is higher than that of the second spigot, an outer cone core shaft is arranged in the second spigot, the upper end of the limiting rod extends into the bottom surface of the outer cone core shaft, a blind hole is arranged in the bottom surface of the outer cone core shaft, a first spring is arranged in the blind hole, the lower end of the first spring extends out of the blind hole to be connected with the base, the first spring biases the outer cone core shaft upwards, the outer cone core shaft comprises a large-diameter end and a small-diameter end, the small-diameter end is arranged on the upper side of the large-diameter end, the outer circumferential surface of the upper end of the large-diameter end is arranged to be a first conical surface, a guide sleeve and an inner hole guide sleeve are sleeved on the outer side of the outer cone core shaft, the inner cone guide sleeve is arranged on the lower side of the inner hole guide sleeve, the inner circumferential surface of the inner cone guide sleeve is set to be a second conical surface, the second conical surface is matched with the first conical surface, the outer circumferential surface of the inner cone guide sleeve is matched with the inner circumferential surface of the first spigot, the inner circumferential surface of the lower end of the inner hole guide sleeve is set to be a third conical surface, the third conical surface is matched with the first conical surface, the inner circumferential surface of the inner hole guide sleeve is matched with the small-diameter end, the outer circumferential surface of the inner hole guide sleeve is matched with the inner circumferential surface of the first spigot, a convex block is arranged on the upper side of the inner cone guide sleeve, a groove is formed in the bottom surface of the inner hole guide sleeve, the inner cone guide sleeve is matched and connected with the inner hole guide sleeve through the convex block and the groove, a second spring is arranged between the inner cone guide sleeve and the inner hole guide sleeve, and the through hole, the limiting rod, the first spigot, the second spigot, the outer cone mandrel, the inner cone guide sleeve and the inner hole guide sleeve are coaxially arranged.
2. A shell workpiece press-fitting and centering device as claimed in claim 1, wherein: the number of the blind holes is more than two, and the blind holes are uniformly distributed along the circumferential direction of the outer cone mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221272926.2U CN217596397U (en) | 2022-05-26 | 2022-05-26 | Shell workpiece press-mounting and centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221272926.2U CN217596397U (en) | 2022-05-26 | 2022-05-26 | Shell workpiece press-mounting and centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217596397U true CN217596397U (en) | 2022-10-18 |
Family
ID=83568969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221272926.2U Active CN217596397U (en) | 2022-05-26 | 2022-05-26 | Shell workpiece press-mounting and centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217596397U (en) |
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2022
- 2022-05-26 CN CN202221272926.2U patent/CN217596397U/en active Active
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