CN109751379A - Clasp nut - Google Patents
Clasp nut Download PDFInfo
- Publication number
- CN109751379A CN109751379A CN201711141492.6A CN201711141492A CN109751379A CN 109751379 A CN109751379 A CN 109751379A CN 201711141492 A CN201711141492 A CN 201711141492A CN 109751379 A CN109751379 A CN 109751379A
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- CN
- China
- Prior art keywords
- nut
- retaining ring
- hydraulic
- hole
- clasp
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses clasp nuts, including top nut, lower nut, shell, hydraulic retaining ring, upper limit retaining ring and lower limit retaining ring, the screw thread half bore of top nut and lower nut is correspondingly arranged, nut mounting hole is set in shell, upper limit retaining ring is fixedly mounted on the upper end of nut mounting hole, lower limit retaining ring is fixedly mounted on the lower end of nut mounting hole, top nut and lower nut are arranged between upper limit retaining ring and lower limit retaining ring, hydraulic shield ring sleeve is mounted in the outside of top nut and lower nut top, the upper end of hydraulic retaining ring is fixedly connected with top nut, hydraulic cavities are provided between the lower end and lower nut of hydraulic retaining ring, L-type is provided with for sap cavity between the lower end surface and side wall of lower nut, for sap cavity and hydraulic chamber into communication.The present invention passes through the folding of HYDRAULIC CONTROL SYSTEM top nut and lower nut, to control the working condition of clasp nut, structure is simple, and control is accurate quick, convenient for controlling at a slow speed fastly for lathe.
Description
Technical field
The present invention relates to a kind of clasp nut more particularly to clasp nuts.
Background technique
One nut is cut in half, then, is fixed on feed change unit on a guide rail that can be moved up and down, opens up and down
It closes.When conjunction, it is equivalent to the nut of a close-fitting lead screw, lead screw turns when lathe operates, and nut does not turn that (nut is fixed on feed change unit
On, can only move up and down), nut side-to-side movement can be driven.Feed change unit is just moved with the speed of every turn of screw pitch of main shaft.
Traditional opening nut mechanism, the folding of nut are that the purpose for realizing folding is controlled by people's rotational handle, volume
It is bigger, it is necessary to rotating mechanism to be crossed to realize the movement of folding, using area is restricted.It is unfavorable for automatically controlling.
Summary of the invention
The object of the invention is that providing clasp nut to solve the above-mentioned problems.
The present invention through the following technical solutions to achieve the above objectives:
The screw thread half bore of clasp nut, including top nut and lower nut, the top nut and the lower nut is correspondingly arranged,
The clasp nut further includes shell, hydraulic retaining ring, upper limit retaining ring and lower limit retaining ring, and setting nut is installed in the shell
Hole, the upper limit retaining ring are fixedly mounted on the upper end of the nut mounting hole, and the lower limit retaining ring is fixedly mounted on described
The lower end of nut mounting hole, the top nut and lower nut setting the upper limit retaining ring and the lower limit retaining ring it
Between, the hydraulic shield ring sleeve is mounted in the outside of the top nut and the lower nut top, the upper end of the hydraulic retaining ring and institute
It states top nut to be fixedly connected, is provided with hydraulic cavities between the lower end and the lower nut of the hydraulic retaining ring, the lower nut
L-type is provided between lower end surface and side wall for sap cavity, it is described for sap cavity and the hydraulic chamber into communication.
Specifically, the upper end of the hydraulic retaining ring is provided with circular ring structure, and the circular ring structure is upper with the top nut
End end face be fixedly connected, the internal diameter of the hydraulic retaining ring is equal with the outer diameter of the top nut, the outer diameter of the hydraulic retaining ring and
The internal diameter of the nut mounting hole is equal.
Specifically, the lower nut is hierarchic structure, the internal diameter of the top outer diameter of the lower nut and the hydraulic retaining ring
Equal, the lower outer diameter of the lower nut is equal with the internal diameter of the nut mounting hole.
Further, further include return spring and screw rod, be provided with corresponding through-hole on the top nut and the lower nut,
The first end of the screw rod passes through the through-hole and is fixedly connected by nut with the top nut, and the second end of the screw rod is set
Resilient nut is set, the lower end of the through-hole on the lower nut is provided with stepped hole, and the return spring is sleeved on the screw rod
It goes up and is located between the stepped hole and described time power nut.
Preferably, the quantity of the return spring and the screw rod is four, and four screw rods are with the lower nut
Central axes be uniformly distributed for the center of circle.
Further, the clasp nut further includes guide pin, and it is logical that multiple guide pins are evenly arranged in the top nut
Hole is provided with multiple guide pin blind holes corresponding with the guide pin through-hole, the guide pin on the upper surface of the lower nut
Lower end be fixedly connected with the guide pin blind hole, the upper end of the guide pin is located in the guide pin through-hole.
Preferably, the upper limit retaining ring passes through the card slot being arranged in the nut mounting hole and the fixed company of the shell
It connects, the lower limit retaining ring is fixedly connected by screw with the lower end of the shell.
Preferably, sealing ring is provided between the lower nut and the shell and the hydraulic retaining ring, it is described hydraulic
Sealing ring is provided between retaining ring and the shell.
The beneficial effects of the present invention are:
Clasp nut of the present invention passes through the folding of HYDRAULIC CONTROL SYSTEM top nut and lower nut, to control clasp nut
Working condition, structure is simple, and control is accurate quick, does not need additional auxiliary closing device, and fast convenient for lathe controls at a slow speed,
And it realizes and automatically controls convenient for lathe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of clasp nut of the present invention, is state when closing in figure；
Fig. 2 is the structural schematic diagram of clasp nut of the present invention, is state when opening in figure.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As depicted in figs. 1 and 2, clasp nut of the present invention, including top nut 2, lower nut 1, shell 10, hydraulic retaining ring 3, on
The screw thread half bore pair of limit stop ring 6, lower limit retaining ring 11, guide pin 5, return spring 9 and screw rod 8, top nut 2 and lower nut 1
It should be arranged, nut mounting hole is set in shell 10, upper limit retaining ring 6 is fixedly mounted on the upper end of nut mounting hole, lower limit gear
Circle 11 is fixedly mounted on the lower end of nut mounting hole, and top nut 2 and lower nut 1 are arranged in upper limit retaining ring 6 and lower limit retaining ring
Between 11, hydraulic retaining ring 3 is sleeved on the outside on 1 top of top nut 2 and lower nut, and the upper end of hydraulic retaining ring 3 and top nut 2 are fixed
Connection, is provided with hydraulic cavities 4, sets between the lower end surface and side wall of lower nut 1 between the lower end and lower nut 1 of hydraulic retaining ring 3
L-type is equipped with for sap cavity, is connected to for sap cavity with hydraulic cavities 4, the upper end of hydraulic retaining ring 3 is provided with circular ring structure, circular ring structure with it is upper
The upper end end face of nut 2 is fixedly connected, and the internal diameter of hydraulic retaining ring 3 is equal with the outer diameter of top nut 2, the outer diameter of hydraulic retaining ring 3 with
The internal diameter of nut mounting hole is equal, and lower nut 1 is hierarchic structure, the internal diameter phase of the top outer diameter of lower nut 1 and hydraulic retaining ring 3
Deng the lower outer diameter of lower nut 1 is equal with the internal diameter of nut mounting hole, is provided in top nut 2 and lower nut 1 corresponding logical
Hole, the first end of screw rod 8 pass through through-hole and are fixedly connected by nut with top nut 2, and resilient spiral shell is arranged in the second end of screw rod 8
Mother, the lower end of the through-hole on lower nut 2 are provided with stepped hole, and return spring 9 is sleeved on screw rod 8 and is located at stepped hole and Hui Li
Between nut.The quantity of return spring 9 and screw rod 8 is four, and four screw rods 8 are uniform as the center of circle using the central axes of lower nut 1
It is distributed, is evenly arranged with multiple guide pin through-holes in top nut 2, be provided on the upper surface of lower nut 1 multiple logical with guide pin
The corresponding guide pin blind hole in hole, the lower end of guide pin 5 are fixedly connected with guide pin blind hole, and the upper end of guide pin 5 is located at guide pin
In through-hole, upper limit retaining ring 6 passes through the card slot being arranged in nut mounting hole and is fixedly connected with shell 10, and lower limit retaining ring 11 is logical
It crosses screw 7 to be fixedly connected with the lower end of shell 10, sealing ring, liquid is provided between lower nut 1 and shell 10 and hydraulic retaining ring 3
Sealing ring is provided between pressure retaining ring 3 and shell 10.
The working principle of clasp nut of the present invention is as follows:
As shown in Figure 1, not being filled with hydraulic oil into hydraulic cavities 4 when clasp nut needs to be in the state of " conjunction ", open and close
The top nut 2 of nut and lower nut 1 are in closed state, clasp nut and lead screw under the action of return spring 9 and screw rod 8
Engagement works normally；The size of 9 elastic force of return spring can be adjusted by adjusting go back to position of the power nut on screw rod 8 simultaneously.
As shown in Fig. 2, when clasp nut is needed in "open" state, by being connected to L-type for hydraulic on sap cavity
Pipe 12 pours high pressure liquid pressure oil to L-type feed flow is intracavitary, and high pressure liquid pressure oil is entered to along L-type for sap cavity in the hydraulic cavities 4 of annular, right
The lower part of lower nut 1 and hydraulic retaining ring 3 apply active force downwardly and upwardly respectively, and the upper end of hydraulic retaining ring 3 and top nut 2 are solid
Fixed connection, so that top nut 2 moves up, lower nut 1 is moved down, to make clasp nut separate with lead screw, at this time
Return spring 9 is in compression state, then can be under the action of elastic force by upper spiral shell when hydraulic oil is flowed out out of hydraulic cavities 4
Mother 2 and lower nut 1 restore to position shown in FIG. 1.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (8)
1. the screw thread half bore of clasp nut, including top nut and lower nut, the top nut and the lower nut is correspondingly arranged,
It is characterized in that: further including shell, hydraulic retaining ring, upper limit retaining ring and lower limit retaining ring, nut mounting hole is set in the shell,
The upper limit retaining ring is fixedly mounted on the upper end of the nut mounting hole, and the lower limit retaining ring is fixedly mounted on the nut
The lower end of mounting hole, the top nut and the lower nut are arranged between the upper limit retaining ring and the lower limit retaining ring,
The hydraulic shield ring sleeve be mounted in the top nut and the lower nut top outside, the upper end of the hydraulic retaining ring and it is described on
Nut is fixedly connected, and is provided with hydraulic cavities, the lower end of the lower nut between the lower end and the lower nut of the hydraulic retaining ring
L-type is provided between end face and side wall for sap cavity, it is described for sap cavity and the hydraulic chamber into communication.
2. clasp nut according to claim 1, it is characterised in that: the upper end of the hydraulic retaining ring is provided with annulus knot
Structure, the circular ring structure are fixedly connected with the upper end end face of the top nut, the internal diameter of the hydraulic retaining ring and the top nut
Outer diameter it is equal, the outer diameter of the hydraulic retaining ring is equal with the internal diameter of the nut mounting hole.
3. clasp nut according to claim 2, it is characterised in that: the lower nut is hierarchic structure, the lower nut
Top outer diameter it is equal with the internal diameter of the hydraulic retaining ring, the internal diameter of the lower outer diameter of the lower nut and the nut mounting hole
It is equal.
4. clasp nut according to claim 1, it is characterised in that: further include return spring and screw rod, the top nut
Be provided with corresponding through-hole on the lower nut, the first end of the screw rod pass through the through-hole and by nut and it is described on
Nut is fixedly connected, and resilient nut is arranged in the second end of the screw rod, and the lower end of the through-hole on the lower nut is provided with rank
Terraced hole, the return spring are sleeved on the screw rod and between the stepped hole and described time power nuts.
5. clasp nut according to claim 4, it is characterised in that: the quantity of the return spring and the screw rod is
Four, four screw rods are uniformly distributed using the central axes of the lower nut as the center of circle.
6. clasp nut according to claim 1, it is characterised in that: further include guide pin, uniformly set in the top nut
Multiple guide pin through-holes are equipped with, multiple guide pins corresponding with the guide pin through-hole are provided on the upper surface of the lower nut
Blind hole, the lower end of the guide pin are fixedly connected with the guide pin blind hole, and the upper end of the guide pin is located at the guide pin
In through-hole.
7. clasp nut according to claim 1, it is characterised in that: the upper limit retaining ring is by being arranged in the nut
Card slot in mounting hole is fixedly connected with the shell, and the lower limit retaining ring connects by the way that the lower end of screw and the shell is fixed
It connects.
8. clasp nut according to claim 1, it is characterised in that: the lower nut and the shell and the hydraulic gear
It is provided with sealing ring between circle, is provided with sealing ring between the hydraulic retaining ring and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141492.6A CN109751379A (en) | 2017-11-07 | 2017-11-07 | Clasp nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711141492.6A CN109751379A (en) | 2017-11-07 | 2017-11-07 | Clasp nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109751379A true CN109751379A (en) | 2019-05-14 |
Family
ID=66401846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711141492.6A Pending CN109751379A (en) | 2017-11-07 | 2017-11-07 | Clasp nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751379A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879518A (en) * | 2021-02-26 | 2021-06-01 | 深圳在谨石科技有限公司 | Sliding screw rod sleeve capable of being moved and positioned quickly |
| CN113664559A (en) * | 2021-07-29 | 2021-11-19 | 黄河科技学院 | Automatic mounting and positioning device for large-diameter shaft parts for lathe |
-
2017
- 2017-11-07 CN CN201711141492.6A patent/CN109751379A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879518A (en) * | 2021-02-26 | 2021-06-01 | 深圳在谨石科技有限公司 | Sliding screw rod sleeve capable of being moved and positioned quickly |
| CN113664559A (en) * | 2021-07-29 | 2021-11-19 | 黄河科技学院 | Automatic mounting and positioning device for large-diameter shaft parts for lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |
|
| WD01 | Invention patent application deemed withdrawn after publication |