CN211101665U - Eccentric clamping sleeve tool for machining eccentric parts - Google Patents

Eccentric clamping sleeve tool for machining eccentric parts Download PDF

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Publication number
CN211101665U
CN211101665U CN201921857122.7U CN201921857122U CN211101665U CN 211101665 U CN211101665 U CN 211101665U CN 201921857122 U CN201921857122 U CN 201921857122U CN 211101665 U CN211101665 U CN 211101665U
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cylinder
eccentric
hole
open
column body
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CN201921857122.7U
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李滔
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Chengdu Vino Precision Machinery Co ltd
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Chengdu Vino Precision Machinery Co ltd
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Abstract

The utility model discloses an eccentric cover frock that presss from both sides for processing eccentric part, the electric iron comprises a cylinder body, be equipped with the cylinder through-hole on the cylinder, the axial lead of cylinder through-hole with the axial lead of cylinder is misaligned and is parallel to each other. The utility model discloses a set up the cylinder through-hole that the axial lead does not coincide on the cylinder, when processing eccentric part, install the one end of waiting to process the part in the cylinder through-hole, with the cylinder centre gripping on the carousel, the axial lead of carousel and the axial lead of waiting to process the part do not coincide yet, the carousel rotates the back cooperation cutter can be processed into eccentric structure with the other end of waiting to process the part to accomplish the processing of eccentric part; through this eccentric cover frock processing eccentric part of pressing from both sides, simple, practical, accurate, production efficiency is showing and is improving, can be according to the size of part, the eccentricity difference moreover, change the cylinder through-hole the size and the eccentricity can, be fit for batch processing eccentric part.

Description

Eccentric clamping sleeve tool for machining eccentric parts
Technical Field
The utility model relates to a press from both sides cover frock for processing the part especially relates to an eccentric cover frock that presss from both sides for processing eccentric part.
Background
In the machining industry, a situation that an eccentric part is machined frequently, the eccentric part is a part with a certain part having a center which is not on the axis of the whole part, the general structure is as shown in fig. 1, the eccentric part 1 comprises a first cylinder 11, a second cylinder 13 and a connecting body 12, the first cylinder 11 and the second cylinder 13 are connected together through the connecting body 12, the axes of the first cylinder 11 and the connecting body 12 are coincident, and the axis of the second cylinder 13 is not on the coincident axis, that is, the second cylinder 13 forms an eccentric structure.
At present, the following processing methods are generally adopted to process eccentric parts:
1. the three-jaw gasket processing method comprises the following steps: according to the eccentricity of the eccentric part, a gasket with the thickness of 1.5 x is arranged on any claw of the chuck in a stacking mode, and the part to be machined is enabled to generate certain deviation to meet the requirement of the eccentricity.
2. Four-claw single-action method: the four claws are adjusted individually to achieve the purpose of enabling the part to be machined to be eccentric.
3. The double-chuck processing method comprises the following steps: a three-jaw chuck is clamped on the four jaws, the purpose of enabling a part to be machined to be eccentric is achieved by adjusting the four jaws, and the part to be clamped is directly clamped by the three jaws.
4. The flower disc processing method comprises the following steps: before the eccentric hole is machined, the outer circle and two end faces of a part to be machined are machined to meet requirements, the position of the eccentric hole is drawn on the end faces, then the part to be machined is clamped on a flower disc uniformly by a pressing plate, and the flower disc is corrected by a eight-needle disc and then is compressed tightly, so that turning can be performed.
5. Double-top eccentric processing method: the part to be machined is turned by the double tips, before machining, a main central hole of a central point and a central hole of an eccentric point are firstly drilled at two ends of the part to be machined, the central holes are firstly propped against, a part of the main body is machined, and then the front and rear tips are propped against, so that the turning of the eccentric part can be carried out.
The conventional processing method has the following defects:
1. the three-jaw gasket method has the disadvantages of troublesome clamping and low precision, can only aim at a few parts with low requirements, and is not applicable to some appearance special-shaped parts and thin-wall parts.
2. Four-claw single-action method: the precision is poor, the adjustment is troublesome, and the method is only suitable for rough machining of some large eccentric workpieces.
3. The double-chuck processing method comprises the following steps: the two chucks are overlapped together, so that the rigidity is poor, the rotating speed of a machine tool cannot be too high, the machine tool can only be suitable for rough machining, and the surface quality of parts is not high.
4. The flower disc processing method comprises the following steps: the method can only be suitable for processing eccentric hole workpieces with short workpiece length, large eccentric distance and low precision requirement.
5. Double-top eccentric processing method: the method is only suitable for processing the shaft parts with low eccentricity requirement.
In conclusion, the traditional machining mode is difficult to meet the machining requirement of the eccentric part with higher precision requirement.
SUMMERY OF THE UTILITY MODEL
The objective of the present invention is to provide an eccentric clamping sleeve tool for processing eccentric parts, which is used to solve the above problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the eccentric clamping sleeve tool for machining the eccentric part comprises a cylinder body, wherein a cylinder body through hole is formed in the cylinder body, and the axis of the cylinder body through hole is not coincident with the axis of the cylinder body and is parallel to the axis of the cylinder body. The column through hole is used for installing a part to be processed.
Further, for the convenience of installation and compressing tightly the part of treating processing, be equipped with a first open slot along its axial on the cylinder, the both ends of first open slot extend to the both ends surface and the opening of cylinder, one side of first open slot extends to the peripheral surface and the opening of cylinder, the other side of first open slot extends to the pore wall and the opening of cylinder through-hole. The first open slot makes the column body have certain elasticity.
Further, for being convenient for installation more and compressing tightly the part of treating processing, be equipped with one or more second open slot along its axial on the cylinder, the both ends of second open slot extend to the both ends surface and the opening of cylinder, one side of second open slot is located just the mouth is just closed in the cylinder, the other side of second open slot extends to the pore wall and the opening of cylinder through-hole. The second open slot makes the column body have more elasticity.
Preferably, the number of the second open grooves is two, and the two second open grooves and the first open groove are uniformly distributed on the circumference. This configuration is more suitable for use with conventional three-jaw chucks.
Preferably, the corner surface of the groove wall of the first opening groove connected with the hole wall of the through hole of the column body, and the corner surface of the groove wall of the second opening groove connected with the hole wall of the through hole of the column body are all convex arc surfaces so as to prevent a part to be machined from scratching a machined surface when being assembled and taken out, and the surface of the groove wall of the closed end of the second opening groove is a semicircular surface so as to prevent the tool from being broken in a repeated clamping process and avoid stress concentration.
As preferred, in order to facilitate quick, stable this frock of centre gripping, the cylinder is formed by the connection of the first cylinder that length is longer, the diameter is less and the great second cylinder of length, diameter, first cylinder with integrated into one piece or welded connection between the second cylinder. The first cylinder is used for contacting with a clamping tool, and the second cylinder is used for limiting, so that a quick and stable clamping effect is realized.
Preferably, the first cylinder and the second cylinder are both cylinders.
Preferably, the cylinder is a spring steel cylinder with sufficient elasticity and rigidity.
The beneficial effects of the utility model reside in that:
the utility model discloses a set up the cylinder through-hole that the axial lead does not coincide on the cylinder, when processing eccentric part, install the one end of waiting to process the part in the cylinder through-hole, with the cylinder centre gripping on the carousel, the axial lead of carousel and the axial lead of waiting to process the part do not coincide yet, the carousel rotates the back cooperation cutter can be processed into eccentric structure with the other end of waiting to process the part to accomplish the processing of eccentric part; through this eccentric cover frock processing eccentric part of pressing from both sides, simple, practical, accurate, production efficiency is showing and is improving, can be according to the size of part, the eccentricity difference moreover, change the cylinder through-hole the size and the eccentricity can, be fit for batch processing eccentric part.
Drawings
FIG. 1 is a perspective view of a conventional eccentric part;
fig. 2 is a perspective view of the eccentric clamping sleeve tool for machining an eccentric part according to the present invention;
fig. 3 is a front view of the eccentric clamping sleeve tool for machining an eccentric part according to the present invention;
fig. 4 is one of the perspective views of the eccentric clamping sleeve tool for machining an eccentric part according to the present invention;
fig. 5 is a second perspective view of the eccentric clamping sleeve tool for machining an eccentric part according to the present invention;
fig. 6 is a third perspective view of the eccentric clamping sleeve tooling for machining eccentric parts in the application of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 2 and fig. 3, the eccentric jacket tool for machining eccentric parts of the present invention includes a cylinder, the cylinder is formed by connecting a first cylinder 2 with a long length and a small diameter and a second cylinder 4 with a short length and a large diameter, the first cylinder 2 and the second cylinder 4 are integrally formed or welded, the first cylinder 2 and the second cylinder 4 are spring steel cylinders, the material of the first cylinder 2 and the second cylinder 4 is more preferably 60Si2Mn spring steel, and the heat treatment hardness HRC is 40-45; the column body is provided with a column body through hole 5, the axis line of the column body through hole 5 is not coincident with the axis line of the column body and is parallel to the axis line of the column body, and two ends of the column body through hole 5 respectively extend to the outer end surface of the first column body 2 and the outer end surface of the second column body 4 and are opened; a first opening groove 3 is formed in the cylinder body along the axial direction of the cylinder body, two ends of the first opening groove 3 respectively extend to the outer end surface of the first cylinder body 2 and the outer end surface of the second cylinder body 4 and are opened, one side of the first opening groove 3 extends to the outer peripheral surfaces of the first cylinder body 2 and the second cylinder body 4 and is opened, and the other side of the first opening groove 3 extends to the hole wall of the cylinder through hole 5 and is opened; two (also can be one or more) second open grooves 6 are arranged on the column body along the axial direction, two ends of each second open groove 6 respectively extend to the outer end surface of the first column body 2 and the outer end surface and the opening of the second column body 4, one side of each second open groove 6 is positioned in the first column body 2 and the second column body 4 and is closed, the other side of each second open groove 6 extends to the hole wall and the opening of the column body through hole 5, the two second open grooves 6 and the first open grooves 3 are uniformly distributed on the circumference together, the groove wall of the first open groove 3 is connected with the hole wall of the column body through hole 5 to form a corner surface, the groove wall of the second open groove 6 is connected with the hole wall of the column body through hole 5 to form an outer convex arc surface, and the groove wall surface of the closed end of the second open groove.
In order to ensure the precision, a cylinder through hole 5 is cut by adopting a slow wire feeding processing line so as to ensure that the cylinder through hole can be matched with a part to be processed (the matching clearance is controlled to be 0.01 mm).
As shown in fig. 4-6, when in use, a to-be-processed part (a semi-finished product) is first placed into the cylinder through hole 5, the to-be-processed part includes a processed first cylinder 11 (see the first cylinder 11 in fig. 1, the first cylinder 11 is concentrically processed, which is very easy and not described herein) and a to-be-processed cylinder 7, which are connected to each other and have coincident axial lines, and the first cylinder 11 is placed into the cylinder through hole 5, as shown in fig. 4; then, the jacket tool with the part to be machined is placed on a three-jaw chuck 8 on a machine tool, and the first column body 2 is locked by three jaw rods 9, so that the part to be machined is stably installed, as shown in fig. 5; the machine tool drives the three-jaw chuck 8 and the part to be machined to rotate, under the action of an eccentric structure of a machining tool (not shown, a conventional tool carried by the machine tool) and the cylinder through hole 5, the cylinder 7 to be machined is machined into an eccentric cylinder, namely a second cylinder 13 of the eccentric part (also see the first cylinder 13 of fig. 1), and a section of unprocessed connecting body 12 (also see the connecting body 12 of fig. 1) is left between the second cylinder 13 and the first cylinder 11, so that the eccentric part shown in fig. 1 is finally obtained as shown in fig. 6.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims (6)

1. The utility model provides an eccentric cover frock that presss from both sides for processing eccentric part which characterized in that: the device comprises a column body, wherein a column body through hole is formed in the column body, and the axis line of the column body through hole is not coincident with the axis line of the column body and is parallel to the axis line of the column body; the column body is provided with a first open slot along the axial direction, two ends of the first open slot extend to the surfaces of the two ends of the column body and are open, one side of the first open slot extends to the peripheral surface of the column body and is open, and the other side of the first open slot extends to the hole wall of the through hole of the column body and is open; be equipped with one or more second open slot on the cylinder along its axial, the both ends of second open slot extend to the both ends surface and the opening of cylinder, one side of second open slot is located just the mouth is just closed in the cylinder, the opposite side of second open slot extends to the pore wall and the opening of cylinder through-hole.
2. The eccentric collet tooling of claim 1, wherein: the number of the second open grooves is two, and the second open grooves and the first open grooves are uniformly distributed on the circumference.
3. The eccentric collet tooling of claim 1, wherein: the groove wall of the first open groove and the hole wall of the column through hole are connected to form a corner surface, the groove wall of the second open groove and the hole wall of the column through hole are connected to form a corner surface, the corner surface is an outer convex arc surface, and the surface of the groove wall at the closed end of the second open groove is a semicircular surface.
4. The eccentric collet tooling of claim 1, 2 or 3 for machining eccentric parts, wherein: the cylinder is formed by connecting a first cylinder with longer length and smaller diameter and a second cylinder with shorter length and larger diameter, and the first cylinder is connected with the second cylinders in an integrated forming or welding manner.
5. The eccentric collet tooling of claim 4, wherein: the first cylinder and the second cylinder are both cylinders.
6. The eccentric collet tooling of claim 1, 2 or 3 for machining eccentric parts, wherein: the cylinder is a spring steel cylinder.
CN201921857122.7U 2019-10-31 2019-10-31 Eccentric clamping sleeve tool for machining eccentric parts Active CN211101665U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921857122.7U CN211101665U (en) 2019-10-31 2019-10-31 Eccentric clamping sleeve tool for machining eccentric parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921857122.7U CN211101665U (en) 2019-10-31 2019-10-31 Eccentric clamping sleeve tool for machining eccentric parts

Publications (1)

Publication Number Publication Date
CN211101665U true CN211101665U (en) 2020-07-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115319511A (en) * 2022-04-22 2022-11-11 成都飞机工业(集团)有限责任公司 Turning device and turning method for eccentric part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115319511A (en) * 2022-04-22 2022-11-11 成都飞机工业(集团)有限责任公司 Turning device and turning method for eccentric part
CN115319511B (en) * 2022-04-22 2023-12-08 成都飞机工业(集团)有限责任公司 Turning device and turning method for eccentric part

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