Eccentric sleeve outer circle grinding tool

Abstract

An eccentric sleeve outer circle grinding tool comprises an eccentric plug, the eccentric plug comprises a positioning plug and a flange end cover, an eccentric concave table is arranged on the inner side of the flange end cover, a concentric circular table is arranged on the outer side of the flange end cover, the center of the eccentric concave table deviates from the center of the flange end cover, and a first center hole is formed in the concentric circular table in the axial direction; a circular boss which is concentric with and matched with the eccentric concave platform is arranged on the outer side of the positioning plug; the flange end cover and the positioning plug are fixedly connected into a whole, and the circular boss is clamped in the eccentric concave table; the positioning plug is inserted into an eccentric inner hole in the right end of the eccentric sleeve in a matched mode, and the flange end cover is fixedly connected with the end face of the eccentric sleeve. The eccentric sleeve can be conveniently clamped and then connected with a grinding machine, and cylindrical grinding is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to grinding processing technical field especially relates to a eccentric sleeve outer circle grinding frock. BACKGROUND

[0002] Machine tool equipment is widely applied in the fields of aerospace, military industry, wind power and medical instruments, and the tail seat component is the core precision component of the machine tool, so the manufacturing precision of the sleeve is very important. At present, the inner and outer circles of the sleeve of the numerical control machine tool are concentric, and the grinding frock clamp is simple. With the development of the five-axis numerical control machine tool and the research on the function and technology of the tail seat component, the eccentric structure of the inner and outer circles of the tail seat sleeve is designed. Therefore, the existing outer circle grinding frock cannot be applied to the tail seat sleeve with eccentric inner and outer circles. SUMMARY

[0003] In order to solve the above problems in the prior art, the utility model provides a eccentric sleeve outer circle grinding frock.

[0004] The utility model discloses a eccentric sleeve outer circle grinding frock, including eccentric plug, the eccentric plug includes the location plug and the flange end cover, the flange end cover inboard has eccentric recess, and the outside has concentric circular platform, the center of eccentric recess is eccentric with the center of flange end cover, and the concentric circular platform has the first center hole in the axial direction, the location plug outside has the circular boss that is concentric with eccentric recess and adapts, the flange end cover and location plug fixed connection are as an organic whole, and circular boss is clamped in eccentric recess, the location plug adapts and inserts in the eccentric inner hole that eccentric sleeve right -hand member has, and the flange end cover and eccentric sleeve's end surface fixed connection.

[0005] Further, the location plug is fixedly connected with the flange end cover through the first bolt, and the flange end cover is fixedly connected with the end surface of the eccentric sleeve through the second bolt.

[0006] Further, it further includes concentric plug, the concentric plug has the flange on the outer diameter of the middle part, and the second center hole is arranged on the center axis, and the outer diameter of the part protruding from the inner side of the flange is matched with the concentric inner hole on the left end of the eccentric sleeve, and the flange is fixedly connected with the left end surface of the eccentric sleeve through the third bolt.

[0007] Further, the side surface of the concentric circular platform is provided with a plane matched with the grinding machine.

[0008] The utility model has the advantages of:

[0009] 1. The utility model can conveniently connect the eccentric tail seat sleeve after clamping with the grinding machine, complete the outer circle grinding, and make the outer circle roundness reach 0.004um and the cylindrical degree reach 0.005um.

[0010] 2. The eccentric plug of this utility model is assembled from a positioning plug and a flange end cap, which is convenient to process and manufacture and has low cost. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the eccentric plug of this utility model;

[0012] Figure 2 This is a cross-sectional schematic diagram of the eccentric plug structure of this utility model;

[0013] Figure 3 This is a cross-sectional schematic diagram of the concentric plug structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0015] Reference numerals: 1. Locating plug; 1-1. Circular boss; 2. Flange end cap; 2-1. Eccentric recess; 2-2. Concentric frustum; 2-3. First center hole; 2-4. Plane; 3. Eccentric sleeve; 3-1. Eccentric inner hole; 3-2. Concentric inner hole; 4. First bolt; 5. Second bolt; 6. Concentric plug; 6-1. Flange; 6-2. Second center hole; 7. Third bolt. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in detail with reference to specific embodiments.

[0017] A grinding fixture for the outer diameter of an eccentric sleeve includes an eccentric plug and a concentric plug 6; wherein the eccentric sleeve 3 has an eccentric inner hole 3-1 at its right end and a concentric inner hole 3-2 at its left end. The center of the eccentric inner hole 3-1 is vertically offset upward from the center of the outer diameter of the eccentric sleeve 3 by 4 mm.

[0018] The eccentric plug includes a positioning plug 1 and a flange end cap 2. The flange end cap 2 has an eccentric recess 2-1 on its inner side and a concentric frustum 2-2 on its outer side. The concentric frustum 2-2 has a first central hole 2-3 on its axial direction. The center of the eccentric recess 2-1 is vertically offset upward from the center of the flange end cap 2 by 4 mm. The positioning plug 1 has a circular boss 1-1 on its outer side that is adapted to the eccentric recess 2-1. The circular boss 1-1 is adapted to the eccentric recess 2-1 of the flange end cap. The gap between the circular boss 1-1 and the eccentric recess 2-1 is 0.01-0.015 mm, and the boss is fixed inside the eccentric recess 2-1 as a whole.

[0019] The eccentric plug is a positioning plug 1 fixedly connected to the flange end cover 2 by the first bolt 4. The positioning plug 1 is concentric with the eccentric recess 2-1, and the positioning plug 1 is vertically offset upward from the center of the flange end cover 2 by a distance of 4mm.

[0020] The positioning plug 1 is concentric with the eccentric inner hole 3-1 at the right end of the sleeve, and the fitting clearance is 0.01-0.015. The flange end cover 2 is fixedly connected with the end face of the eccentric sleeve 3 through the second bolt 5, so that the flange end cover 2 is concentric with the outer circle of the eccentric sleeve 3.

[0021] The side surface of the concentric circular platform 2-2 has a plane 2-4 which is adapted to be connected with a grinding machine.

[0022] The concentric plug 6 has a flange 6-1 on the outer diameter of the middle part, a second center hole 6-2 in the center, and the outer diameter of the inner side part of the convex flange 6-1 is adapted with the concentric inner hole 3-2 at the left end of the eccentric sleeve 3. The flange 6-1 is fixedly connected with the left end face of the eccentric sleeve 3 through the third bolt 7.

[0023] In the embodiment, the center of the positioning plug 1 in the eccentric plug and the center of the flange cover 2 are offset in the same direction and by the same distance as the center of the eccentric inner hole 3-1 on the eccentric sleeve 3 and the center of the outer circle.

[0024] After clamping, the concentric circular platform 2-2, the concentric plug 6 and the outer circle of the eccentric sleeve 3 are coaxial, which meets the needs of eccentric sleeve outer circle grinding processing. During grinding, the two centers of the grinding machine respectively hold the first center hole 2-3 of the eccentric plug and the second center hole 6-2 on the concentric plug 6, and the grinding machine chuck is connected with the plane 2-4, so that the outer circle grinding processing can be carried out.

[0025] The above is a further detailed description of the utility model in combination with a specific preferred embodiment, and cannot be regarded as the specific implementation of the utility model being limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the utility model.

Claims

1. An eccentric sleeve cylindrical grinding tool, characterized by: The eccentric plug includes a positioning plug (1) and a flange end cover (2), the flange end cover (2) has an eccentric recess (2-1) on the inner side and a concentric circular platform (2-2) on the outer side, the center of the eccentric recess (2-1) is offset from the center of the flange end cover (2), the concentric circular platform (2-2) has a first central hole (2-3) in the axial direction; the positioning plug (1) has a circular boss (1-1) on the outer side which is concentric with and matched with the eccentric recess (2-1); the flange end cover (2) and the positioning plug (1) are fixedly connected as a whole, and the circular boss (1-1) is clamped in the eccentric recess (2-1); the positioning plug (1) is matched and inserted into the eccentric inner hole (3-1) at the right end of the eccentric sleeve (3), and the flange end cover (2) is fixedly connected with the end face of the eccentric sleeve (3).

2. The eccentric sleeve cylindrical grinding tool according to claim 1, characterized in that: The positioning plug (1) is fixedly connected with the flange end cover (2) through the first bolt (4), and the flange end cover (2) is fixedly connected with the end face of the eccentric sleeve (3) through the second bolt (5).

3. Eccentric sleeve external cylindrical grinding tool according to claim 1 or 2, characterized in that: The concentric plug (6) further includes a flange (6-1) on the outer diameter of the middle part, a second central hole (6-2) in the central axis, and the outer diameter of the part protruding from the inner side of the flange (6-1) is matched with the concentric inner hole (3-2) at the left end of the eccentric sleeve (3); the flange (6-1) is fixedly connected with the left end face of the eccentric sleeve (3) through the third bolt (7).

4. The eccentric sleeve external grinding tool of claim 3, wherein: The side surface of the concentric circular platform (2-2) has a plane (2-4) matched with the grinding machine for connection.

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