An automatic centering and centering honing floating device

Abstract

The present invention relates to an automatic centering and floating honing device, comprising: a base plate; a vertical plate; a floating mounting seat; a fixed fixture, on which a part to be machined is provided, and the floating mounting seat is used to provide floating of the part on the fixed fixture during machining following the tool; the fixed fixture includes a covering sleeve, a cylinder mounting plate, a cylinder and an anti-rotation pin. The part to be machined is arranged inside the covering sleeve. The covering sleeve is fixedly connected with the floating mounting seat. The cylinder mounting plate is fixedly connected with the outer wall of the covering sleeve. The cylinder is arranged on the cylinder mounting plate. The anti-rotation pin is connected with the piston rod of the cylinder, and the cylinder is used to drive the anti-rotation pin to insert into the side hole of the part inside the covering sleeve. The automatic centering and floating honing device of the present invention has a compact structure, a relatively light overall mass, and a relatively small lateral gravity on the tool; this device can freely float along with the machining tool, and after the tool leaves the tooling, the tooling can automatically center and align; the part is automatically fixed and anti-twisted, leaving an interface for subsequent automatic loading and unloading machining.

Description

Technical Field

[0001] The present invention relates to the technical field of servo valve production, and particularly to an automatic centering and floating honing device. Background Art

[0002] For the valve sleeve in the core components of the servo valve, high requirements are imposed on the dimensional fit accuracy and surface roughness, and no slight scratches are allowed. The pore diameter range is wide, and it involves difficult-to-machine materials such as high-strength steel, with great processing difficulty and high requirements for the inner hole size. Conventional equipment for automatic honing processing often fails to meet the accuracy requirements of parts. The ideal working condition for honing processing is a freely floating state, that is, the part is not affected by external forces such as its own gravity and clamping force, and can have a small displacement in any direction, thereby reducing the interaction force with the honing tool. How to make the part float and center more flexibly between the fixture and the honing tool and reduce the adverse effects caused by the part's weight bias is the key to fixture design.

[0003] The existing honing floating mechanisms all adopt a frame-type mechanism and are connected by cylindrical pins to ensure that the product can rotate and move slightly back and forth in the tooling. Disadvantages of the prior art:

[0004] 1. The frame-type structure has a large self-weight, which affects the honing accuracy;

[0005] 2. The product cannot automatically center and align. When the tool just enters the product, an eccentric force is generated, resulting in irregular wear at the inlet of the part. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that there is an interaction force between the fixture and the honing tool due to the weight bias of the part, which is not conducive to the honing tool for processing the part.

[0007] To solve the above technical problem, the present invention provides an automatic centering and floating honing device, including: a base plate; two vertical plates symmetrically arranged, the lower ends of the vertical plates are fixedly arranged on the base plate; a floating mounting seat connected to the upper ends of the vertical plates; a fixed fixture connected to the floating mounting seat, and a part to be processed is provided on the fixed fixture, and the floating mounting seat is used to provide floating for the part on the fixed fixture during processing; the fixed fixture includes a covering sleeve, a cylinder mounting plate, a cylinder and an anti-rotation pin, the part to be processed is arranged in the covering sleeve, the covering sleeve is fixedly connected to the floating mounting seat, the cylinder mounting plate is fixedly connected to the outer wall of the covering sleeve, the cylinder is arranged on the cylinder mounting plate, the anti-rotation pin is connected to the piston rod of the cylinder, and the cylinder is used to drive the anti-rotation pin to insert into the side hole of the part in the covering sleeve. The automatic centering and floating honing device of the present invention realizes that during the processing of precision hole parts, the product automatically floats along with the tool; realizes the automatic centering function of the product; realizes the quick switching of the fixture for valve sleeve parts.

[0008] In one embodiment of the present invention, the floating mounting base includes an X-axis floating mounting bracket, a Y-axis floating mounting bracket, X-axis floating elastic reed pieces, Y-axis floating elastic reed pieces, and a mounting plate. The upper end of the X-axis floating mounting bracket is connected to the vertical plate. Both the X-axis floating mounting bracket and the Y-axis floating mounting bracket are in the shape of rectangular plates. A first rectangular hole is provided at the center of the X-axis floating mounting bracket. Two X-axis floating elastic reed pieces are symmetrically and parallelly arranged, and one end of each X-axis floating elastic reed piece is arranged on the inner wall of the first rectangular hole. The Y-axis floating mounting bracket is connected to the X-axis floating elastic reed pieces and is located within the rectangular cross-section range of the first rectangular hole. A second rectangular hole is provided at the center of the Y-axis floating mounting bracket. Two Y-axis floating elastic reed pieces are symmetrically and parallelly arranged, and one end of each Y-axis floating elastic reed piece is arranged on the inner wall of the second rectangular hole. The mounting plate is connected to the Y-axis floating elastic reed pieces. A third circular through-hole is provided at the center of the mounting plate. The outer wall of the coating sleeve is connected to the inner wall of the third circular through-hole.

[0009] In one embodiment of the present invention, both the X-axis floating elastic reed pieces and the Y-axis floating elastic reed pieces are in the shape of rectangular thin sheets, and the materials of the X-axis floating elastic reed pieces and the Y-axis floating elastic reed pieces are elastic materials. The two X-axis floating elastic reed pieces and the two Y-axis floating elastic reed pieces are respectively distributed on the four sides of the rectangular cross-section.

[0010] In one embodiment of the present invention, a first rectangular protrusion is provided at one end of the Y-axis floating mounting bracket away from the X-axis floating elastic reed pieces and the X-axis floating mounting bracket. One end of the X-axis floating elastic reed piece suspended in the first rectangular hole and the first rectangular protrusion are locked by screws; a second rectangular protrusion is provided at one end of the mounting plate away from the Y-axis floating elastic reed pieces and the Y-axis floating mounting bracket. One end of the Y-axis floating elastic reed piece suspended in the second rectangular hole and the second rectangular protrusion are locked by screws.

[0011] In one embodiment of the present invention, a floating component is provided between the floating mounting base and the vertical plate. The floating component includes a rectangular frame and four flexible connecting pieces. Two opposite corners of the rectangular frame are connected to the vertical plate through two symmetrically arranged flexible connecting pieces, and the other two corners of the rectangular frame are connected to the X-axis floating mounting bracket through two symmetrically arranged flexible connecting pieces.

[0012] In one embodiment of the present invention, the flexible connecting piece includes a fixing plate, a first connecting block, a second connecting block, a first leaf spring, and a second leaf spring. Fixing plates are provided on both the vertical plate and the X-axis floating mounting bracket. The first connecting block is fixedly connected to the fixing plate. The second connecting block is connected to the first connecting block through the first leaf spring and the second leaf spring. The first leaf spring and the second leaf spring are arranged in an "X" shape in cross-section. The second connecting block is fixedly arranged on the rectangular frame.

[0013] In one embodiment of the present invention, the covering sleeve is cylindrical, and a circular groove IV is provided at the center of the covering sleeve. The upper end surface of the circular groove IV is flush with the upper end surface of the mounting plate. A circular through hole V is provided at the bottom surface of the circular groove IV. A step is provided between the circular through hole V and the circular groove IV. A part to be machined is provided in the circular groove IV, and the bottom surface of the part to be machined is placed on the step.

[0014] In one embodiment of the present invention, two circular through holes VI are provided on the side wall of the covering sleeve. The circular through holes VI communicate with the circular groove IV. The two circular through holes VI are located on the same diameter. A guiding sliding sleeve is provided on the inner wall of the circular through hole VI. The anti-rotation pin is placed in the guiding sliding sleeve, and the anti-rotation pin can slide along the guiding sliding sleeve.

[0015] In one embodiment of the present invention, a plurality of rectangular grooves are provided on the inner wall of the circular groove IV. The plurality of rectangular grooves are arranged in an annular array, and the length direction of the rectangular grooves is arranged along the axis direction of the covering sleeve. The rectangular grooves are used for guiding the cutting fluid.

[0016] In one embodiment of the present invention, the anti-rotation pin is cylindrical, and a circular boss is provided at one end of the anti-rotation pin away from the air cylinder. The circular boss and the anti-rotation pin are coaxially arranged, and the cross-sectional area of the circular boss is smaller than the cross-sectional area of the anti-rotation pin. The circular boss is used for inserting into the side hole of the part to be machined.

[0017] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0018] The automatic centering and self-aligning honing floating device of the present invention has a compact structure, a relatively light overall mass, and a relatively small lateral gravity on the tool. This device can freely float with the machining tool, and after the tool leaves the tooling, the tooling can automatically center and align. The parts are automatically fixed and anti-twisted, leaving an interface for subsequent automated loading and unloading processing. Description of the Drawings

[0019] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to the specific embodiments of the present invention in combination with the drawings, where

[0020] Figure 1 is the top view of the automatic centering and self-aligning honing floating device in the preferred embodiment of the present invention;

[0021] Figure 2 is in the preferred embodiment of the present invention Figure 1 is the sectional view taken along the line A-A;

[0022] Figure 3 is in the preferred embodiment of the present invention Figure 1Cross-sectional view in the B-B direction;

[0023] Figure 4 In the preferred embodiment of the present invention Figure 3 Partial enlarged view at C;

[0024] Figure 5 Structural schematic diagram of the automatic centering honing floating device in the preferred embodiment of the present invention;

[0025] Figure 6 Structural schematic diagram of the floating mounting base and the fixed fixture in the preferred embodiment of the present invention;

[0026] Figure 7 Structural schematic diagram of the floating mounting base in the preferred embodiment of the present invention;

[0027] Figure 8 Structural schematic diagram of the floating assembly in the preferred embodiment of the present invention;

[0028] Figure 9 Structural schematic diagram of the flexible connecting member in the preferred embodiment of the present invention;

[0029] Figure 10 Structural schematic diagram of the first leaf spring in the preferred embodiment of the present invention;

[0030] Figure 11 Structural schematic diagram of the fixed fixture in the preferred embodiment of the present invention;

[0031] Figure 12 Partial structural schematic diagram of the fixed fixture in the preferred embodiment of the present invention.

[0032] Explanation of the reference numerals in the drawings of the specification: Base plate 1, vertical plate 2, floating mounting base 3, X-axis floating mounting bracket 31, first rectangular hole 311, Y-axis floating mounting bracket 32, second rectangular hole 321, first rectangular convex part 322, X-axis floating elastic leaf spring 33, Y-axis floating elastic leaf spring 34, mounting plate 35, third circular through hole 351, second rectangular convex part 352, fixed fixture 4, covering sleeve 41, fourth circular groove 411, fifth circular through hole 412, step 413, sixth circular through hole 414, guiding sliding sleeve 415, rectangular groove 416, cylinder mounting plate 42, cylinder 43, anti-rotation pin 44, circular boss 441, floating assembly 5, rectangular frame 51, flexible connecting member 52, fixing plate 521, first connecting block 522, second connecting block 523, first leaf spring 524, second leaf spring 525. Detailed implementation manners

[0033] The present invention will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments given are not intended to limit the present invention.

[0034] Refer to Figures 1-6 As shown, the automatic centering and floating honing device of the present invention includes: a base plate 1, a vertical plate 2, a floating mounting seat 3, and a fixed fixture 4; the vertical plate 2 is provided in two symmetrically arranged pieces, and the lower end of the vertical plate 2 is fixedly arranged on the base plate 1; the floating mounting seat 3 is connected to the upper end of the vertical plate 2; the fixed fixture 4 is connected to the floating mounting seat 3, and a part to be processed is provided on the fixed fixture 4, and the floating mounting seat 3 is used to provide floating for the part on the fixed fixture 4 during processing with a tool.

[0035] The automatic centering and floating honing device of the present invention mainly includes a base plate 1, a vertical plate 2, a floating mounting seat 3, and a fixed fixture 4; the base plate 1 is placed on the equipment rotating table surface, and the vertical plates 2 are symmetrically distributed on both sides of the base plate 1.

[0036] Refer to Figure 11 、 12 As shown, the fixed fixture 4 includes a covering sleeve 41, a cylinder mounting plate 42, a cylinder 43, and an anti-rotation pin 44. A part to be processed is provided in the covering sleeve 41. The covering sleeve 41 is fixedly connected to the floating mounting seat 3. The cylinder mounting plate 42 is fixedly connected to the outer wall of the covering sleeve 41. The cylinder 43 is arranged on the cylinder mounting plate 42. The anti-rotation pin 44 is connected to the piston rod of the cylinder 43. The cylinder 43 is used to drive the anti-rotation pin 44 to insert into the side hole of the part in the covering sleeve 41.

[0037] Refer to Figure 7As shown in the figure, the floating mounting base 3 includes an X-axis floating mounting bracket 31, a Y-axis floating mounting bracket 32, an X-axis floating elastic reed 33, a Y-axis floating elastic reed 34, and a mounting plate 35. The upper end of the X-axis floating mounting bracket 31 is connected to the vertical plate 2. Both the X-axis floating mounting bracket 31 and the Y-axis floating mounting bracket 32 are rectangular plate-shaped. A first rectangular hole 311 is provided at the center of the X-axis floating mounting bracket 31. The X-axis floating elastic reeds 33 are two symmetrically and parallelly arranged, and one end of the X-axis floating elastic reed 33 is provided on the inner wall of the first rectangular hole 311. The Y-axis floating mounting bracket 32 is connected to the X-axis floating elastic reed 33, and the Y-axis floating mounting bracket 32 is within the rectangular cross-section range of the first rectangular hole 311. A second rectangular hole 321 is provided at the center of the Y-axis floating mounting bracket 32. The Y-axis floating elastic reeds 34 are two symmetrically and parallelly arranged, and one end of the Y-axis floating elastic reed 34 is provided on the inner wall of the second rectangular hole 321. The mounting plate 35 is connected to the Y-axis floating elastic reed 34. A third circular through-hole 351 is provided at the center of the mounting plate 35. The outer wall of the covering sleeve 41 is connected to the inner wall of the third circular through-hole 351. The X-axis floating mounting bracket 31, the Y-axis floating mounting bracket 32, the X-axis floating elastic reed 33, the Y-axis floating elastic reed 34, and the mounting plate 35 are in the same plane. The X-axis floating mounting bracket 31, the Y-axis floating mounting bracket 32, and the mounting plate 35 form a nested relationship from the outside to the inside. The X-axis floating mounting bracket 31 is located in the outermost layer, the mounting plate 35 is located in the innermost layer, and the Y-axis floating mounting bracket 32 is located between the X-axis floating mounting bracket 31 and the mounting plate 35. The X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34 provided respectively provide the floating of the mounting plate 35 in two perpendicular XY directions.

[0038] The floating mounting base 3 has a certain degree of freedom in the horizontal X and Y directions and within a relatively small range in the axial direction of XY. Secondly, it can meet the rapid and free switching of various parts with different shapes.

[0039] In the above structure, both the X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34 are rectangular thin sheets, and the materials of the X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34 are elastic materials. The two X-axis floating elastic reeds 33 and the two Y-axis floating elastic reeds 34 are respectively distributed on the four sides of the rectangular cross-section. Preferably, the X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34 are elastic leaf springs.

[0040] In the above structure, one end of the Y-axis floating mounting bracket 32 away from the X-axis floating elastic reed 33 and the X-axis floating mounting bracket 31 is provided with a first rectangular convex part 322, and one end of the X-axis floating elastic reed 33 suspended in the first rectangular hole 311 and the first rectangular convex part 322 are locked by screws; one end of the mounting plate 35 away from the Y-axis floating elastic reed 34 and the Y-axis floating mounting bracket 32 is provided with a second rectangular convex part 352, and one end of the Y-axis floating elastic reed 34 suspended in the second rectangular hole 321 and the second rectangular convex part 352 are locked by screws. The first rectangular convex parts 322 are provided on the end faces of the Y-axis floating mounting bracket 32 opposite to the X-axis floating elastic reed 33. By providing the first rectangular convex parts 322, a gap is provided between the side wall of the Y-axis floating mounting bracket 32 and the opposite X-axis floating elastic reed 33. Thus, when one end of the Y-axis floating mounting bracket 32 is connected to the X-axis floating elastic reed 33, the Y-axis floating mounting bracket 32 is suspended in the first rectangular hole 311. Since the X-axis floating elastic reed 33 connecting the Y-axis floating mounting bracket 32 has elasticity, during the tool machining, the X-axis floating elastic reed 33 provides the floating of the Y-axis floating mounting bracket 32 in the X direction; the second rectangular convex parts 352 are provided on the end faces of the mounting plate 35 opposite to the Y-axis floating elastic reed 34. By providing the second rectangular convex parts 352, a gap is provided between the side wall of the mounting plate 35 and the opposite Y-axis floating elastic reed 34. Thus, when one end of the mounting plate 35 is connected to the Y-axis floating elastic reed 34, the mounting plate 35 is suspended in the second rectangular hole 321. Since the Y-axis floating elastic reed 34 also has elasticity, the Y-axis floating elastic reed 34 provides the floating of the mounting plate 35 in the Y-axis direction. Through the arrangement of the two groups of spring reeds, namely the X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34, the mounting plate 35 has floating in both the X and Y directions.

[0041] For valve sleeve type high-precision parts, the cylindricity is required to be as high as the micron level, which requires high dynamic followability between the hole and the honing tool during the machining process, that is, there should be no horizontal force acting during the honing process. The X-axis floating elastic reed 33 and the Y-axis floating elastic reed 34 have elastic functions, so as to ensure that the part is in a zero external force state in the XY directions during the machining process. The closer the part is to the free floating state, the higher the accuracy of the machining. Since the floating uses elastic reeds, after the machining is completed, the part fixture can automatically return to the center, so as to ensure that when the tool enters the part each time, there will be no wear on the side wall of the part.

[0042] Refer to Figure 8 、 9As shown, a floating component 5 is provided between the floating mounting base 3 and the vertical plate 2. The floating component 5 includes a rectangular frame 51 and four flexible connectors 52. Two opposite corner parts of the rectangular frame 51 are connected to the vertical plate 2 through two symmetrically arranged flexible connectors 52, and the other two corner parts of the rectangular frame 51 are connected to the X-axis floating mounting bracket 31 through two symmetrically arranged flexible connectors 52. The four flexible connectors 52 are respectively arranged at the four corner positions of the rectangular frame 51, and the floating connection between the vertical plate 2 and the rectangular frame 51 is realized through the transfer of the four flexible connectors 52. The rectangular frame 51 is arranged parallel to the plane where the X-axis floating mounting bracket 31, the Y-axis floating mounting bracket 32, the X-axis floating elastic spring piece 33, the Y-axis floating elastic spring piece 34 and the mounting plate 35 are located, and the rectangular frame 51 is located below this plane. The four corner parts of the rectangular frame 51 are arranged in one-to-one correspondence with the four sides of the X-axis floating mounting bracket 31, so that the corners of the rectangular frame 51 extending out of the four sides of the X-axis floating mounting bracket 31 can be connected to the flexible connectors 52. During the processing, the floating component 5 can enable the floating device to achieve a small degree of freedom in the XY axial direction.

[0043] Referring to Figure 9 、 10 As shown, the flexible connector 52 includes a fixing plate 521, a connecting block one 522, a connecting block two 523, a leaf spring one 524 and a leaf spring two 525. Fixing plates 521 are provided on both the vertical plate 2 and the X-axis floating mounting bracket 31. The connecting block one 522 is fixedly connected to the fixing plate 521. The connecting block two 523 is connected to the connecting block one 522 through the leaf spring one 524 and the leaf spring two 525. The leaf spring one 524 and the leaf spring two 525 are arranged in an "X" shape in a crosswise manner. The connecting block two 523 is fixedly arranged on the rectangular frame 51. Both the connecting block one 522 and the connecting block two 523 are rectangular blocks. The connecting block one 522 and the connecting block two 523 are arranged vertically opposite to each other. Two V-shaped grooves one 526 are provided on the end surface of the connecting block one 522 opposite to the connecting block two 523. Two V-shaped grooves two 527 are provided on the end surface of the connecting block two 523 opposite to the connecting block one 522. Both ends of the leaf spring one 524 are provided with bending parts one 528. Both ends of the leaf spring two 525 are provided with bending parts two. The two bending parts one 528 of the leaf spring one 524 are respectively arranged in the V-shaped groove one 526 and the V-shaped groove two 527. The two bending parts two of the leaf spring two 525 are respectively arranged in the V-shaped groove one 526 and the V-shaped groove two 527, and the leaf spring two 525 and the leaf spring one 524 cross to form a torsion spring. Preferably, two leaf springs one 524 are provided, and one leaf spring two 525 is provided. One leaf spring two 525 is located between the two leaf springs one 524. The two leaf springs one 524 are arranged in the same direction. To ensure the balance of the torsion between the leaf spring one 524 and the leaf spring two 525, the width of the leaf spring two 525 is greater than the width of the leaf spring one 524.

[0044] In order to fully ensure that the part is not stressed or stressed evenly during the clamping process, the part is clamped in an overall wrapping manner. The specific structure is that the wrapping sleeve 41 is cylindrical, and a circular groove four 411 is provided at the center of the wrapping sleeve 41. The upper end surface of the circular groove four 411 is flush with the upper end surface of the mounting plate 35. A circular through hole five 412 is provided at the bottom surface of the circular groove four 411. A step 413 is provided between the circular through hole five 412 and the circular groove four 411. The part to be machined is provided in the circular groove four 411, and the bottom surface of the part to be machined is placed on the step 413.

[0045] In the above structure, two circular through holes six 414 are provided on the side wall of the wrapping sleeve 41. The circular through holes six 414 communicate with the circular groove four 411. The two circular through holes six 414 are located on the same diameter. A guiding sliding sleeve 415 is provided on the inner wall of the circular through hole six 414. The anti-rotation pin 44 is placed in the guiding sliding sleeve 415, and the anti-rotation pin 44 can slide along the guiding sliding sleeve 415. The cylinders 43 are two symmetrically arranged. The anti-rotation pins 44 are two symmetrically arranged. The two anti-rotation pins 44, the two cylinders 43 and the two circular through holes six 414 are arranged in one-to-one correspondence. A plurality of rectangular grooves 416 are provided on the inner wall of the circular groove four 411. The plurality of rectangular grooves 416 are arranged in an annular array, and the length direction of the rectangular grooves 416 is arranged along the axis direction of the wrapping sleeve 41. The rectangular grooves 416 are used for the diversion of cutting fluid.

[0046] In the above structure, the anti-rotation pin 44 is cylindrical, and a circular boss 441 is provided at one end of the anti-rotation pin 44 away from the cylinder 43. The circular boss 441 and the anti-rotation pin 44 are coaxially arranged, and the cross-sectional area of the circular boss 441 is smaller than the cross-sectional area of the anti-rotation pin 44. The circular boss 441 is used to insert into the side hole of the part to be machined.

[0047] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An automatic centering honing floating device, characterized in that: include, Base plate; The vertical plates are two symmetrically arranged, and the lower ends of the vertical plates are fixedly arranged on the base plate; A floating mounting seat connected to the upper end of the vertical plate; A fixed fixture is connected to a floating mounting seat, and a part to be processed is arranged on the fixed fixture, and the floating mounting seat is used to allow the part on the fixed fixture to float with the tool during processing; The fixing fixture comprises a covering sleeve, a cylinder mounting plate, a cylinder and an anti-rotation pin, wherein a part to be processed is arranged in the covering sleeve, the covering sleeve is fixedly connected to a floating mounting seat, the cylinder mounting plate is fixedly connected to an outer wall of the covering sleeve, the cylinder is arranged on the cylinder mounting plate, the anti-rotation pin is connected to a piston rod of the cylinder, and the cylinder is used to drive the anti-rotation pin to be inserted into a side hole of the part in the covering sleeve; The floating mounting seat includes an X-axis floating mounting bracket, a Y-axis floating mounting bracket, an X-axis floating elastic spring, a Y-axis floating elastic spring and a mounting plate, the X-axis floating mounting bracket is connected to the upper end of the vertical plate, the X-axis floating mounting bracket and the Y-axis floating mounting bracket are both rectangular plate-shaped, a rectangular hole one is provided at the center of the X-axis floating mounting bracket, two X-axis floating elastic springs are symmetrically and parallelly arranged, and one end of the X-axis floating elastic spring is arranged on the inner wall of the rectangular hole one, the Y-axis floating mounting bracket is connected to the X-axis floating elastic spring, and the Y-axis floating mounting bracket is located within the rectangular cross-sectional range of the rectangular hole one, a rectangular hole two is provided at the center of the Y-axis floating mounting bracket, two Y-axis floating elastic springs are symmetrically and parallelly arranged, and one end of the Y-axis floating elastic spring is arranged on the inner wall of the rectangular hole two, the mounting plate is connected to the Y-axis floating elastic spring, a circular through hole three is provided at the center of the mounting plate, and the outer wall of the covering sleeve is connected to the inner wall of the circular through hole three; A floating assembly is provided between the floating mounting seat and the vertical plate, and the floating assembly includes a rectangular frame and four flexible connectors, two opposite corners of the rectangular frame are connected to the vertical plate through two symmetrically arranged flexible connectors, and the other two corners of the rectangular frame are connected to the X-axis floating mounting bracket through two symmetrically arranged flexible connectors; The flexible connecting member includes a fixed plate, a connecting block 1, a connecting block 2, a leaf spring 1 and a leaf spring 2. The vertical plate and the X-axis floating mounting bracket are both provided with a fixed plate. The connecting block 1 is fixedly connected to the fixed plate. The connecting block 2 is connected to the connecting block 1 through the leaf spring 1 and the leaf spring 2. The leaf spring 1 and the leaf spring 2 are cross-arranged in an "X" shape. The connecting block 2 is fixedly arranged on a rectangular frame.

2. The automatic centering honing floating device according to claim 1 is characterized in that: The X-axis floating elastic spring and the Y-axis floating elastic spring are both rectangular thin sheets, and the material of the X-axis floating elastic spring and the Y-axis floating elastic spring is elastic material. The two X-axis floating elastic springs and the two Y-axis floating elastic springs are respectively distributed on the four sides of the rectangular cross-section.

3. The automatic centering honing floating device according to claim 1 is characterized in that: A rectangular protrusion one is provided at one end of the Y-axis floating mounting bracket away from the X-axis floating elastic spring and the X-axis floating mounting bracket, and one end of the X-axis floating elastic spring suspended in the rectangular hole one and the rectangular protrusion one are locked by screws; a rectangular protrusion two is provided at one end of the mounting plate away from the Y-axis floating elastic spring and the Y-axis floating mounting bracket, and one end of the Y-axis floating elastic spring suspended in the rectangular hole two and the rectangular protrusion two are locked by screws.

4. The automatic centering honing floating device according to claim 1 is characterized in that: The covering sleeve is cylindrical, and a circular groove four is provided in the center of the covering sleeve, the upper end surface of the circular groove four is flush with the upper end surface of the mounting plate, a circular through hole five is provided on the bottom surface of the circular groove four, a step is provided between the circular through hole five and the circular groove four, a part to be processed is provided in the circular groove four, and the bottom surface of the part to be processed is placed on the step.

5. The automatic centering honing floating device according to claim 4 is characterized in that: Two circular through holes six are provided on the side wall of the covering sleeve, and the circular through holes six are connected to the circular groove four. The two circular through holes six are located on the same diameter, and a guide sleeve is provided on the inner wall of the circular through hole six. The anti-rotation pin is placed in the guide sleeve, and the anti-rotation pin can slide along the guide sleeve.

6. The automatic centering honing floating device according to claim 5 is characterized in that: A plurality of rectangular grooves are provided on the inner wall of the circular groove 4. The plurality of rectangular grooves are arranged in a circular array, and the length direction of the rectangular grooves is arranged along the axial direction of the covering sleeve. The rectangular grooves are used for guiding the cutting fluid.

7. The automatic centering honing floating device according to claim 1 is characterized in that: The anti-rotation pin is cylindrical, and a circular boss is provided at one end of the anti-rotation pin away from the cylinder. The circular boss and the anti-rotation pin are coaxially arranged, and the cross-sectional area of ​​the circular boss is smaller than the cross-sectional area of ​​the anti-rotation pin. The circular boss is used to be inserted into the side hole of the part to be processed.

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