A super large diameter shaft sleeve fixing tool for milling machine processing

Abstract

The present invention provides a super-large diameter shaft sleeve fixing fixture for milling machine processing, which relates to the technical field of shaft sleeve processing equipment. The super-large diameter shaft sleeve fixing fixture for milling machine processing comprises a milling machine worktable, a fixed slot plate is fixedly connected to the top of the milling machine worktable, a fixed base is arranged in the middle of the upper part of the fixed slot plate, a rotating seat is fixedly connected to the top of the fixed base, a servo motor is arranged inside the rotating seat, and a shaft sleeve fixing disk is rotatably connected to the top of the rotating seat. The present invention provides a rotating seat and a servo motor below the shaft sleeve fixing disk, so that the shaft sleeve body can be accurately rotated by the servo motor after being loaded on the shaft sleeve fixing disk, and one rotational degree of freedom can be added to the two-axis degree of freedom of the milling machine worktable itself, which can greatly reduce the travel specification requirements of the milling machine worktable, can meet the processing conditions of super-large diameter shaft sleeves, and does not need to purchase a special machining center, thereby reducing the processing cost of the shaft sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of shaft sleeve processing equipment, in particular to a super-large diameter shaft sleeve fixing tool for milling machine processing. Background Art

[0002] The sleeve is a sleeve component on the propeller shaft or stern shaft, and is a type of sliding bearing. It is mainly used in mechanical transmission to support the rotational motion of the shaft by reducing friction. The sleeve usually requires an auxiliary lubrication system to ensure its smooth operation, and is often used in places with light loads and frequent disassembly and assembly. The structure of the sleeve is an integral part. When rotating, relative motion occurs between the shaft and the sleeve. It relies on sliding friction and usually requires an auxiliary lubrication system to ensure smooth operation. It is widely used in machinery, printing and dyeing, papermaking, chemicals, aerospace, coal, petroleum, automobiles, engineering machinery, metallurgy and other industries.

[0003] In the production and processing of bearing sleeves, most of them are processed on lathes, but sometimes some sleeve accessories with extra-large diameter specifications are processed and produced according to customer needs. Since the extra-large diameter sleeves themselves are non-standard parts, they are basically specially customized according to actual needs. The sleeve specifications are too large to enter the lathe and can only be processed by a milling machine. The fixture components of the general milling machine processing center itself cannot clamp and fix the sleeves, and the worktable movement stroke itself cannot meet the processing requirements. In addition, the number of orders received is small, and the price of the processing center used to process large workpieces is too high. It is too wasteful to purchase a large processing center specifically for this purpose, which will greatly increase the processing cost. Therefore, a temporary tooling for fixing extra-large diameter sleeves is needed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a super-large diameter shaft sleeve fixing tool for milling machine processing, which solves the problem that the clamp assembly of a general milling machine processing center itself cannot clamp and fix the super-large diameter shaft sleeve.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ultra-large diameter shaft sleeve fixing tool for milling machine processing, comprising a milling machine worktable, the milling machine worktable is fixedly connected with a fixing slot plate above the milling machine worktable, a fixing base is arranged at an upper middle portion of the fixing slot plate, a rotating seat is fixedly connected with the upper portion of the fixing base, a servo motor is arranged inside the rotating seat, a shaft sleeve fixing plate is rotatably connected with the top of the rotating seat, four working slots are radially and equidistantly opened at the center above the shaft sleeve fixing plate, four spare slots are sequentially opened at intervals of the four working slots above the shaft sleeve fixing plate, two T-shaped nuts are arranged inside the four working slots, shaft sleeve pads are arranged at positions above the shaft sleeve fixing plate corresponding to the four working slots, fixing screw holes are arranged in the middle portions of the four shaft sleeve pads, fixing screws are arranged inside the plurality of fixing screw holes, and limiting convex strips are arranged in the middle portions below the plurality of shaft sleeve pads;

[0008] Four shaft sleeve limiting mechanisms are arranged above the shaft sleeve fixing plate, and the positions of the four shaft sleeve limiting mechanisms respectively correspond to the positions of the T-shaped nuts at one end away from the center of the shaft sleeve fixing plate.

[0009] Preferably, the sleeve limiting mechanism includes a fixed pressure plate, a bolt strip hole, a fixing bolt and a pressure plate pad. The end of the fixed pressure plate close to the center of the sleeve fixing disk is arranged at the upper edge of the oversized diameter sleeve. A bolt strip hole is opened in the middle of the fixed pressure plate. A fixing bolt is penetrated through the inside of the bolt strip hole. A pressure plate pad is arranged below the end of the fixed pressure plate away from the center of the sleeve fixing disk. The fixed pressure plate is fixedly connected to the T-shaped nut at the end away from the center of the sleeve fixing disk by the fixing bolt.

[0010] Preferably, a plurality of fixing grooves are arranged above the fixing groove plate, and both sides below the fixing base are fixedly connected to the corresponding fixing grooves by two bolts.

[0011] Preferably, the four working grooves and the four spare grooves are all inverted T-shaped grooves, and the T-shaped cross-sectional shape corresponds to the cross-sectional shape of the T-shaped nut.

[0012] Preferably, the widths of the limiting convex strips of the plurality of shaft sleeve pads correspond to the upper width of the working groove.

[0013] Preferably, the positions of the plurality of sleeve pads are all arranged on a concentric circle of the sleeve fixing plate, and the size of the concentric circle corresponds to the edge of the oversized diameter sleeve.

[0014] Preferably, the plurality of sleeve pads are fixedly connected to a T-shaped nut at one end close to the center of the sleeve fixing disk by means of fixing screws.

[0015] Preferably, a plastic gasket is disposed below one end of each of the plurality of fixed pressing plates away from the pressing plate pad.

[0016] (III) Beneficial effects

[0017] The present invention provides a super-large diameter shaft sleeve fixing tool for milling machine processing. It has the following beneficial effects:

[0018] 1. The present invention is provided with a shaft sleeve fixing plate and a shaft sleeve spacer, which cooperate with an inverted T-shaped groove and a corresponding T-shaped nut. After the shaft sleeve spacer is positioned, the corresponding shaft sleeve spacer and the shaft sleeve fixing plate can be fixed by a fixing screw, which is convenient for the placement and positioning of the shaft sleeve. In combination with the corresponding shaft sleeve limiting mechanism, the fixing bolt and the T-shaped nut can be used to make the fixed pressure plate press the edge of the shaft sleeve to temporarily fix the shaft sleeve, thereby solving the problem that the fixture assembly of the milling machine itself cannot clamp and fix the shaft sleeve with an extra-large diameter.

[0019] 2. A rotating seat and a servo motor are provided under the shaft sleeve fixing plate of the present invention, so that the shaft sleeve body can be accurately rotated by the servo motor after being loaded on the shaft sleeve fixing plate. In addition to the two-axis degrees of freedom of the milling machine worktable itself, one rotational degree of freedom can be added, which can greatly reduce the stroke specification requirements of the milling machine worktable. Only simple modification can meet the processing conditions of extra-large diameter shaft sleeves, without the need to purchase a special machining center, thereby reducing the processing cost of the shaft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the rotating seat of the present invention;

[0022] Figure 3 A top perspective view of the shaft sleeve pad of the present invention;

[0023] Figure 4 A bottom perspective view of the shaft sleeve spacer of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the T-shaped nut of the present invention;

[0025] Figure 6 for Figure 1 Enlarged view of point A.

[0026] Among them, 1. milling machine worktable; 2. fixed slot plate; 3. fixed base; 4. rotating seat; 5. servo motor; 6. shaft sleeve fixing plate; 7. working slot; 8. T-shaped nut; 9. shaft sleeve limiting mechanism; 10. shaft sleeve pad; 11. fixing screw hole; 12. limiting convex strip; 13. fixing screw; 14. spare slot; 91. fixed pressure plate; 92. bolt strip hole; 93. fixing bolt; 94. pressure plate pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1-6 As shown, the embodiment of the present invention provides an extra-large diameter shaft sleeve fixing tool for milling machine processing, including a milling machine worktable 1, a fixed groove plate 2 is fixedly connected to the top of the milling machine worktable 1, a fixed base 3 is arranged in the middle of the upper part of the fixed groove plate 2, a plurality of fixed grooves are arranged above the fixed groove plate 2, and the lower two sides of the fixed base 3 are fixedly connected to the corresponding fixed grooves by two bolts, a rotating seat 4 is fixedly connected to the top of the fixed base 3, a servo motor 5 is arranged inside the rotating seat 4, and a shaft sleeve fixing plate 6 is rotatably connected to the top of the rotating seat 4, four working grooves 7 are equidistantly opened in a central radial shape above the shaft sleeve fixing plate 6, four spare grooves 14 are opened in sequence at the intervals of the four working grooves 7 above the shaft sleeve fixing plate 6, two T-shaped nuts 8 are arranged inside the four working grooves 7, the four working grooves 7 and the four spare grooves 14 are all inverted T-shaped grooves, and the T-shaped cross-sectional shapes are uniform. Corresponding to the cross-sectional shape of the T-nut 8, sleeve pads 10 are arranged at positions above the sleeve fixing disk 6 corresponding to the four working grooves 7, and fixing screw holes 11 are provided in the middle of the four sleeve pads 10. Fixing screw holes 11 are provided inside the multiple fixing screw holes 11. Multiple sleeve pads 10 are fixedly connected to the T-nut 8 at one end of the circle center of the sleeve fixing disk 6 through the fixing screws 13. Limiting convex strips 12 are provided in the middle of the lower parts of the multiple sleeve pads 10. The width of the limiting convex strips 12 of the multiple sleeve pads 10 corresponds to the upper width of the working groove 7, which is used to limit the direction of the sleeve pads 10. The positions of the multiple sleeve pads 10 are all set on a concentric circle of the sleeve fixing disk 6, and the size of the concentric circle corresponds to the edge of the oversized diameter sleeve, so that the edge line of the sleeve pad 10 can be perpendicular to the edge of the sleeve, which is convenient for positioning the oversized diameter sleeve;

[0030] Four sleeve limiting mechanisms 9 are arranged above the sleeve fixing disk 6, and the positions of the four sleeve limiting mechanisms 9 respectively correspond to the positions of the T-shaped nuts 8 at one end away from the center of the sleeve fixing disk 6. The sleeve limiting mechanism 9 includes a fixed pressure plate 91, a bolt strip hole 92, a fixing bolt 93 and a pressure plate pad 94. The end of the fixed pressure plate 91 close to the center of the sleeve fixing disk 6 is arranged at the upper edge of the oversized diameter sleeve, a bolt strip hole 92 is opened in the middle of the fixed pressure plate 91, and a fixing bolt 93 is penetrated inside the bolt strip hole 92. A pressure plate pad 94 is arranged below the end of the fixed pressure plate 91 away from the center of the sleeve fixing disk 6, and plastic gaskets are arranged below the ends of the multiple fixed pressure plates 91 away from the pressure plate pad 94. The fixed pressure plate 91 is fixedly connected to the T-shaped nut 8 at one end away from the center of the sleeve fixing disk 6 by the fixing bolt 93.

[0031] Working principle: When the present invention is working, the sleeve fixing plate 6 and the sleeve pad 10 are arranged, and cooperate with the inverted T-shaped groove and the corresponding T-shaped nut 8. After the sleeve pad 10 is positioned, the corresponding sleeve pad 10 and the sleeve fixing plate 6 can be fixed by the fixing screw 13, which is convenient for the placement and positioning of the sleeve. Then, in conjunction with the corresponding sleeve limiting mechanism 9, the fixing bolt 93 and the T-shaped nut 8 can be used to make the fixed pressure plate 91 press the edge of the sleeve to temporarily fix the sleeve, thereby solving the problem that the fixture assembly of the milling machine itself cannot clamp and fix the sleeve with an oversized diameter; and the sleeve fixing The rotating seat 4 and the servo motor 5 arranged below the fixed plate 6 can enable the sleeve body to be accurately rotated by the servo motor 5 after being loaded on the sleeve fixing plate 6, and can increase a rotational degree of freedom under the two-axis degrees of freedom of the milling machine worktable 1 itself, so that the sleeve can be moved to the processing position under the milling cutter by rotation, so that the original stroke requirement of one sleeve diameter is reduced to the radius specification of the sleeve, which can greatly reduce the stroke specification requirement of the milling machine worktable 1. Through simple modification, the processing conditions of extra-large diameter sleeves are met, without the need to purchase a special machining center, thereby reducing the processing cost of the sleeve.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A super-large diameter shaft sleeve fixing fixture for milling machine processing, comprising a milling machine worktable (1), characterized in that: A fixed groove plate (2) is fixedly connected to the top of the milling machine worktable (1); a fixed base (3) is arranged in the middle of the top of the fixed groove plate (2); a rotating base (4) is fixedly connected to the top of the fixed base (3); a servo motor (5) is arranged inside the rotating base (4); a shaft sleeve fixing plate (6) is rotatably connected to the top of the rotating base (4); four working grooves (7) are equidistantly arranged in a central radial pattern above the shaft sleeve fixing plate (6); and the shaft sleeve fixing plate (6) has four working grooves (7) arranged above the four working grooves ( 7), four spare grooves (14) are sequentially opened at intervals between the four working grooves (7), two T-shaped nuts (8) are arranged inside the four working grooves (7), a sleeve pad (10) is arranged above the sleeve fixing plate (6) at positions corresponding to the four working grooves (7), a fixing screw hole (11) is opened in the middle of the four sleeve pads (10), a fixing screw (13) is arranged inside the plurality of fixing screw holes (11), and a limiting convex strip (12) is opened in the middle of the lower part of the plurality of sleeve pads (10); Four shaft sleeve limiting mechanisms (9) are arranged above the shaft sleeve fixing plate (6), and the positions of the four shaft sleeve limiting mechanisms (9) respectively correspond to the positions of the T-shaped nuts (8) at one end away from the center of the shaft sleeve fixing plate (6).

2. The super-large diameter sleeve fixing fixture for milling machine processing according to claim 1 is characterized in that: The shaft sleeve limiting mechanism (9) comprises a fixed pressure plate (91), a bolt hole (92), a fixing bolt (93) and a pressure plate pad (94); the end of the fixed pressure plate (91) close to the center of the shaft sleeve fixing plate (6) is arranged at the upper edge of the oversized diameter shaft sleeve; a bolt hole (92) is provided in the middle of the fixed pressure plate (91); a fixing bolt (93) is provided through the inside of the bolt hole (92); a pressure plate pad (94) is provided below the end of the fixed pressure plate (91) away from the center of the shaft sleeve fixing plate (6); the fixed pressure plate (91) is fixedly connected to the T-shaped nut (8) at the end away from the center of the shaft sleeve fixing plate (6) via the fixing bolt (93).

3. The super-large diameter shaft sleeve fixing fixture for milling machine processing according to claim 1 is characterized in that: A plurality of fixing grooves are arranged above the fixing groove plate (2), and both sides below the fixing base (3) are fixedly connected to the corresponding fixing grooves via two bolts.

4. The super-large diameter shaft sleeve fixing fixture for milling machine processing according to claim 1, characterized in that: The four working grooves (7) and the four spare grooves (14) are all inverted T-shaped grooves, and the T-shaped cross-sectional shape corresponds to the cross-sectional shape of the T-shaped nut (8).

5. The super-large diameter sleeve fixing fixture for milling machine processing according to claim 1 is characterized in that: The widths of the limiting convex strips (12) of the plurality of shaft sleeve pads (10) all correspond to the upper width of the working groove (7).

6. The super-large diameter shaft sleeve fixing fixture for milling machine processing according to claim 2, characterized in that: The positions of the plurality of shaft sleeve pads (10) are all arranged on a concentric circle of the shaft sleeve fixing plate (6), and the size of the concentric circle corresponds to the edge of the shaft sleeve with an extra-large diameter.

7. The super-large diameter sleeve fixing fixture for milling machine processing according to claim 1, characterized in that: The plurality of shaft sleeve pads (10) are fixedly connected to a T-shaped nut (8) located at one end close to the center of the shaft sleeve fixing plate (6) via a fixing screw (13).

8. The super-large diameter shaft sleeve fixing fixture for milling machine processing according to claim 2, characterized in that: A plastic gasket is provided below one end of each of the plurality of fixed pressure plates (91) away from the pressure plate pad (94).

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