CN210306864U - Floating type inner hole clamp mechanism - Google Patents
Floating type inner hole clamp mechanism Download PDFInfo
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- CN210306864U CN210306864U CN201921426749.7U CN201921426749U CN210306864U CN 210306864 U CN210306864 U CN 210306864U CN 201921426749 U CN201921426749 U CN 201921426749U CN 210306864 U CN210306864 U CN 210306864U
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Abstract
The utility model discloses a floating type inner hole clamp mechanism, which comprises a fixed bottom plate and a floating seat, wherein the fixed bottom plate is horizontally arranged, the floating seat is positioned right above the fixed bottom plate, the floating seat is cylindrical, and the floating seat is vertically arranged; the adjustable floating seat is characterized in that an adjusting hole vertically penetrates through the fixed bottom plate, an adjusting rod is fixedly arranged on the lower surface of the floating seat and vertically arranged, the adjusting rod vertically and movably penetrates through the adjusting hole, and the diameter of the adjusting hole is larger than that of the adjusting rod. Adopt the utility model discloses a floating hole presss from both sides mechanism, this mechanism are receiving under the circumstances of external force, and the floating seat can be according to the floating of the external force condition that receives on PMKD minimalization, adjusts the position of self, improves the concentricity of reamer and valve guide pipe inner hole, satisfies valve guide's machining precision requirement.
Description
Technical Field
The utility model relates to a hole presss from both sides mechanism, concretely relates to floating hole presss from both sides mechanism.
Background
The valve guide pipe is a guide device of an automobile engine valve, plays a role in guiding the valve, and leads heat on a valve rod to be transmitted to a cylinder cover through the valve guide pipe, after a blank of the valve guide pipe is obtained by powder metallurgy pressing, an inner hole of the valve guide pipe needs to be trimmed by a valve guide pipe reamer so as to obtain a proper matching clearance between the valve rod and the valve guide pipe, and when the inner hole of the valve guide pipe is reamed, the central line of the reamer and the axial lead of the valve guide pipe are coincided so as to improve the processing precision; the existing inner hole reaming and clamping mechanism is fixed, after the valve guide pipe is clamped, the concentricity of the reamer and the valve guide pipe is not high due to the installation of the reaming and clamping mechanism and the like, and the processing precision is reduced.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a hole clamp mechanism that can float adjustment, it has easy operation, improves machining precision's advantage.
The technical scheme is as follows:
a floating type inner hole clamp mechanism is characterized in that: the device comprises a fixed bottom plate and a floating seat, wherein the fixed bottom plate is horizontally arranged, the floating seat is positioned right above the fixed bottom plate, the floating seat is cylindrical, and the floating seat is vertically arranged;
the adjustable floating seat is characterized in that an adjusting hole vertically penetrates through the fixed bottom plate, an adjusting rod is fixedly arranged on the lower surface of the floating seat and vertically arranged, the adjusting rod vertically and movably penetrates through the adjusting hole, and the diameter of the adjusting hole is larger than that of the adjusting rod.
The technical scheme has the remarkable effects that: the level that floats seat can the minizone on PMKD floats, and under the effect that has the external force, the floating seat can take place the floating of minizone according to the external force that receives, and is specific, and after the reamer stretched into the valve guide pipe from the top down, valve guide pipe and the synchronous accompanying reamer of floating seat adjusted by oneself to guarantee the concentricity.
The fixed baseplate is provided with at least three limiting holes horizontally, all the limiting holes surround the adjusting holes and are evenly arranged, the outer ends of the limiting holes are communicated with the outer side of the fixed baseplate, the inner ends of the limiting holes are communicated with the adjusting holes, telescopic rods penetrate through the limiting holes respectively, the telescopic rods are inserted into the limiting holes horizontally, and the inner ends of the telescopic rods are located in the adjusting holes and are in contact with the adjusting rods. The telescopic rod enables the floating seat to automatically return.
The telescopic rod comprises a movable head, a limiting sleeve, a pressure spring and a locking nut, the movable head, the limiting sleeve, the pressure spring and the locking nut are all located in the limiting hole, the limiting sleeve is horizontally arranged, the movable head is fixedly mounted at the inner end of the limiting sleeve, the movable head extends out of the limiting hole and is in contact with the adjusting rod, one end of the pressure spring extends into the limiting sleeve and is abutted against the movable head, the other end of the pressure spring is abutted against the locking nut, and the locking nut is located at the outer end of the limiting hole;
and the inner wall of the outer end of the limiting hole is provided with threads, and the locking nut is in threaded connection with the limiting hole.
The outer wall of the limiting sleeve is also fixedly provided with two slide blocks which are arranged in a back-to-back mode, the slide blocks are long-strip-shaped, and the slide blocks are arranged along the length direction of the limiting sleeve;
the inner wall of the limiting hole is provided with two limiting sliding grooves, the two limiting sliding grooves are arranged along the axial direction of the limiting hole and are arranged oppositely, the two sliding blocks correspond to the two limiting sliding grooves respectively, and the sliding blocks fall into the corresponding limiting sliding grooves.
The movable head comprises a steel ball, an installation seat and a limiting plate, the installation seat is cylindrical, the installation seat is horizontally arranged, one end of the installation seat is connected with the inner end of the limiting sleeve, a hemispherical groove is formed in the end face of the other end of the installation seat, the steel ball is arranged in the hemispherical groove, the limiting plate is further arranged on the end face, provided with the hemispherical groove, of the installation seat, the limiting plate penetrates through the limiting plate, the diameter of the rolling hole is smaller than that of the steel ball, the steel ball extends out of the rolling hole, and the limiting plate is fixed on the installation seat through a bolt.
The upper surface of the fixed bottom plate is also provided with an annular groove, the annular groove surrounds the adjusting hole, a plurality of pressure-bearing balls are arranged in the annular groove, and the floating seat is located on the pressure-bearing balls.
The rubber layer is arranged around the adjusting rod, and the rubber layer is in clearance fit with the lower surface of the fixed bottom plate.
The floating seat is provided with a three-jaw chuck.
Has the advantages that: adopt the utility model discloses a floating hole presss from both sides mechanism, under the circumstances that receives external force, the floating seat can be according to the unsteady of the external force condition minizone that receives on PMKD, adjusts the position of self, improves the concentricity of reamer and valve guide pipe inner hole, satisfies valve guide's machining precision requirement.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a partial enlarged view X of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 2;
fig. 6 is a partially enlarged view Y of fig. 5.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
As shown in fig. 1 to 6, a floating type inner hole clamp mechanism comprises a fixed bottom plate 1a, a floating seat 2, an adjusting hole 3, an adjusting rod 4, a telescopic rod 5, a movable head 6, a limiting sleeve 7, a pressure spring 8, a locking nut 9, steel balls 10, a mounting seat 11, a limiting plate 12 and a friction plate 13, wherein:
the device comprises a fixed base plate 1a and a floating seat 2, wherein the fixed base plate 1a is horizontally arranged, the floating seat 2 is positioned right above the fixed base plate 1a, the floating seat 2 is cylindrical, and the floating seat 2 is vertically arranged;
the adjusting device is characterized in that an adjusting hole 3 vertically penetrates through the fixed base plate 1a, an adjusting rod 4 is fixedly arranged on the lower surface of the floating seat 2, the adjusting rod 4 is vertically arranged, the adjusting rod 4 is vertically and movably arranged in the adjusting hole 3 in a penetrating mode, and the diameter of the adjusting hole 3 is larger than that of the adjusting rod 4.
Specifically, the method comprises the following steps:
the fixed baseplate 1a is provided with at least three limiting holes horizontally, all the limiting holes surround the adjusting holes 3 and are evenly arranged, the outer ends of the limiting holes are communicated with the outer side of the fixed baseplate 1a, the inner ends of the limiting holes are communicated with the adjusting holes 3, telescopic rods 5 penetrate through the limiting holes respectively, the telescopic rods 5 are inserted into the limiting holes horizontally, and the inner ends of the telescopic rods 5 are located in the adjusting holes 3 and are in contact with the adjusting rods 4.
The telescopic rod 5 comprises a movable head 6, a limiting sleeve 7, a pressure spring 8 and a locking nut 9, the movable head 6, the limiting sleeve 7, the pressure spring 8 and the locking nut 9 are all positioned in the limiting hole, the limiting sleeve 7 is horizontally arranged, the movable head 6 is fixedly installed at the inner end of the limiting sleeve 7, the movable head 6 extends out of the limiting hole and is in contact with the adjusting rod 4, one end of the pressure spring 8 extends into the limiting sleeve 7 and is tightly abutted against the movable head 6, the other end of the pressure spring 8 is tightly abutted against the locking nut 9, and the locking nut 9 is positioned at the outer end of the limiting hole;
the inner wall of the outer end of the limiting hole is provided with threads, and the locking nut 9 is in threaded connection with the limiting hole.
Two slide blocks which are arranged in a back-to-back mode are further fixed on the outer wall of the limiting sleeve 7, the slide blocks are long-strip-shaped, and the slide blocks are arranged along the length direction of the limiting sleeve 7;
the inner wall of the limiting hole is provided with two limiting sliding grooves, the two limiting sliding grooves are arranged along the axial direction of the limiting hole and are arranged oppositely, the two sliding blocks correspond to the two limiting sliding grooves respectively, and the sliding blocks fall into the corresponding limiting sliding grooves.
The movable head 6 comprises a steel ball 10, an installation seat 11 and a limiting plate 12, the installation seat 11 is cylindrical, the installation seat 11 is horizontally arranged, one end of the installation seat 11 is connected with the inner end of the limiting sleeve 7, a hemispherical groove is formed in the other end face of the installation seat 11, the steel ball 10 is arranged in the hemispherical groove, the limiting plate 12 is further arranged on the end face, provided with the hemispherical groove, of the installation seat 11, the limiting plate 12 penetrates through the limiting plate 12, the diameter of the rolling hole is smaller than that of the steel ball 10, the steel ball 10 extends out of the rolling hole, and the limiting plate 12 is fixed on the installation seat 11 through a bolt.
The upper surface of the fixed bottom plate is also provided with an annular groove, the annular groove is arranged around the adjusting hole 3, a plurality of pressure-bearing balls are arranged in the annular groove, and the floating seat 2 is arranged on the pressure-bearing balls.
A friction plate 13 is further arranged below the fixed base plate 1a, the friction plate 13 is horizontally arranged, the lower end of the adjusting rod 4 is connected with the center of the upper surface of the friction plate 13, a rubber layer is arranged on the upper surface of the friction plate 13, the rubber layer surrounds the adjusting rod 4, and the rubber layer is in clearance fit with the lower surface of the fixed base plate 1 a.
The floating seat 2 is provided with a three-jaw chuck 15.
The lower part of the friction plate 13 is also provided with a jacking device, the output end of the jacking device is vertically arranged, and the output end of the jacking device faces the lower surface of the friction plate 13 and is tightly abutted against the lower surface.
And a reamer device is arranged right above the butt joint groove.
When the device is used, the fixed base plate 1a is fixed, the valve guide pipe is clamped through the three-jaw chuck 15, the reamer extends downwards into an inner hole of the valve guide pipe, the floating seat 2 and the three-jaw chuck 15 are synchronously adjusted in a self-adaptive mode, and the friction plate 13 is upwards abutted against the fixed base plate 1a through the action of the jacking device, so that the floating seat 2 is kept stable, and reaming is carried out.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (8)
1. The utility model provides a floating hole presss from both sides mechanism which characterized in that: the device comprises a fixed base plate (1a) and a floating seat (2), wherein the fixed base plate (1a) is horizontally arranged, the floating seat (2) is positioned right above the fixed base plate (1a), the floating seat (2) is cylindrical, and the floating seat (2) is vertically arranged;
the adjustable floating seat is characterized in that an adjusting hole (3) vertically penetrates through the fixed base plate (1a), an adjusting rod (4) is fixedly arranged on the lower surface of the floating seat (2), the adjusting rod (4) is vertically arranged, the adjusting rod (4) is vertically movably arranged in the adjusting hole (3), and the aperture of the adjusting hole (3) is larger than the rod diameter of the adjusting rod (4).
2. A floating internal bore clamp mechanism as claimed in claim 1, wherein: the utility model discloses a set plate, including adjusting hole (3), fixed baseplate (1a), spacing hole, telescopic link (5) level is inserted and is established spacing downthehole, the inner of telescopic link (5) be located in adjusting hole (3) and with adjust pole (4) contact, fixed baseplate (1a) upper level be equipped with at least three spacing hole, all spacing hole centers on adjusting hole (3) evenly sets up, the outer end in spacing hole with the switch-on in fixed baseplate (1a) outside, the inner in spacing hole with adjust hole (3) switch-on, every spacing downthehole telescopic link (5) of wearing to be equipped with respectively.
3. A floating internal bore clamp mechanism as claimed in claim 2, wherein: the telescopic rod (5) comprises a movable head (6), a limiting sleeve (7), a pressure spring (8) and a locking nut (9), the movable head (6), the limiting sleeve (7), the pressure spring (8) and the locking nut (9) are all located in the limiting hole, the limiting sleeve (7) is horizontally arranged, the movable head (6) is fixedly installed at the inner end of the limiting sleeve (7), the movable head (6) extends out of the limiting hole and is in contact with the adjusting rod (4), one end of the pressure spring (8) extends into the limiting sleeve (7) and is tightly abutted against the movable head (6), the other end of the pressure spring (8) is tightly abutted against the locking nut (9), and the locking nut (9) is located at the outer end of the limiting hole;
the inner wall of the outer end of the limiting hole is provided with threads, and the locking nut (9) is in threaded connection with the limiting hole.
4. A floating internal bore clamp mechanism as claimed in claim 3, wherein: the outer wall of the limiting sleeve (7) is also fixedly provided with two slide blocks which are arranged in a back-to-back mode, the slide blocks are long-strip-shaped, and the slide blocks are arranged along the length direction of the limiting sleeve (7);
the inner wall of the limiting hole is provided with two limiting sliding grooves, the two limiting sliding grooves are arranged along the axial direction of the limiting hole and are arranged oppositely, the two sliding blocks correspond to the two limiting sliding grooves respectively, and the sliding blocks fall into the corresponding limiting sliding grooves.
5. A floating internal bore clamp mechanism as claimed in claim 3, wherein: the movable head (6) comprises steel balls (10), an installation seat (11) and a limiting plate (12), the installation seat (11) is cylindrical, the installation seat (11) is horizontally arranged, one end of the installation seat (11) is connected with the inner end of the limiting sleeve (7), a hemispherical groove is formed in the end face of the other end of the installation seat (11), the steel balls (10) are arranged in the hemispherical groove, the limiting plate (12) is further arranged on the end face, provided with the hemispherical groove, of the installation seat (11), a rolling hole penetrates through the limiting plate (12), the diameter of the rolling hole is smaller than that of the steel balls (10), the steel balls (10) extend out of the rolling hole, and the limiting plate (12) is fixed on the installation seat (11) through bolts.
6. A floating internal bore clamp mechanism as claimed in claim 1, wherein: the upper surface of the fixed bottom plate is also provided with an annular groove, the annular groove is arranged around the adjusting hole (3), a plurality of pressure-bearing balls are arranged in the annular groove, and the floating seat (2) falls on the pressure-bearing balls.
7. A floating internal bore clamp mechanism as claimed in claim 2, wherein: the rubber-free adjustable fixing base is characterized in that a friction plate (13) is further arranged below the fixing base plate (1a), the friction plate (13) is horizontally arranged, the lower end of the adjusting rod (4) is connected with the center of the upper surface of the friction plate (13), a rubber layer is arranged on the upper surface of the friction plate (13) and surrounds the adjusting rod (4), and the rubber layer is in clearance fit with the lower surface of the fixing base plate (1 a).
8. A floating internal bore clamp mechanism as claimed in claim 1, wherein: the floating seat (2) is provided with a three-jaw chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921426749.7U CN210306864U (en) | 2019-08-30 | 2019-08-30 | Floating type inner hole clamp mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921426749.7U CN210306864U (en) | 2019-08-30 | 2019-08-30 | Floating type inner hole clamp mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210306864U true CN210306864U (en) | 2020-04-14 |
Family
ID=70131782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921426749.7U Active CN210306864U (en) | 2019-08-30 | 2019-08-30 | Floating type inner hole clamp mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210306864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380046A (en) * | 2022-03-01 | 2022-04-22 | 重庆智博粉末冶金有限公司 | Clamping linkage mechanism for pressing and collecting conduit |
-
2019
- 2019-08-30 CN CN201921426749.7U patent/CN210306864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380046A (en) * | 2022-03-01 | 2022-04-22 | 重庆智博粉末冶金有限公司 | Clamping linkage mechanism for pressing and collecting conduit |
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