Shaft part micro rolling device for lathe

Abstract

The utility model relates to the field of rolling tools, and provides a shaft part micro rolling device for a lathe, which comprises a U-shaped base and two tool fine adjustment components symmetrically arranged on two sides of the upper end of the U-shaped base. The rolling cutter is arranged on a bearing of the U-shaped sliding support, a connecting rod is arranged at the outer end of the U-shaped sliding support, a through hole is formed in the shell, and the connecting rod penetrates through the through hole; a rotating disc assembly is arranged on the outer side of the shell, a connecting shaft is eccentrically arranged on one side, facing the rotating shaft, of the rotating disc, a locking bolt is arranged on the side face of the connecting rod, the connecting shaft and the locking bolt are connected through a transmission rod, the two ends of the transmission rod are hinged to the connecting shaft and the locking bolt respectively, the rotating disc rotates to drive the connecting rod to move inwards and outwards, and the locking bolt is screwed for locking after moving in place. The device has the advantages that a mechanical structure is adopted for adjusting and limiting, durability and accuracy are higher, long-term stability and reliability of an adjusting and limiting mechanism are guaranteed, and the device can operate in a working environment for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rolling cutter, concretely relates to a micro-rolling device for shaft parts of lathe. BACKGROUND

[0002] Based on the concept of sustainable manufacturing, although the traditional turning technology has the advantage of rapid prototyping of parts, considering the increasing requirements of industrial production on the dimensional accuracy and surface roughness of parts, the service performance of parts is difficult to improve, and the processing quality is low. Our research and development team has developed a multi-stage adjusting rolling device, which realizes the adjustment of the rolling cutter from coarse to fine.

[0003] However, in the preliminary application test, we encountered a technical problem that needs to be solved urgently. The original micro-adjusting device uses a permanent magnet as a connecting component, which, although to some extent, realizes the convenience of adjustment, but after long-term use, the precision gradually decreases due to wear of the permanent magnet, and the magnetic force decay also affects the accuracy and durability of the adjustment, which brings inconvenience to actual operation, and even may affect the processing precision and efficiency.

[0004] In view of this situation, we urgently need a more advanced, stable and accurate adjusting structure to completely solve the current technical pain points. This new structure should have good durability to ensure the precision during long-term use; at the same time, its adjusting mechanism should be more reliable to avoid adjustment errors caused by external factors (such as magnetic force decay), so as to ensure high precision and consistency during the rolling process. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the problem of low accuracy and durability of the existing micro-adjusting device for rolling machining cutter is solved;

[0006] The utility model provides a micro-rolling device for shaft parts of lathe, including U shaped base and 2 cutter fine adjustment subassembly, 2 the cutter fine adjustment subassembly symmetry is established in the upper end both sides of U shaped base;

[0007] The cutter fine adjustment subassembly is provided with, the cutter fine adjustment subassembly includes shell, rolling cutter and the U shaped sliding support of installing cutter bearing;

[0008] The rolling cutter is arranged on the bearing of the U-shaped sliding support, the outer end of the U-shaped sliding support is provided with a connecting rod, the shell is provided with a through hole, and the connecting rod passes through the through hole; The outer side of the shell is provided with a turntable assembly, the turntable assembly includes a fixed column, a rotating shaft and a turntable, the fixed column is fixedly arranged on the side surface of the shell, the rotating shaft is fixedly arranged on the side of the fixed column close to the connecting rod, and the turntable is rotatably arranged on the rotating shaft.

[0009] The connecting shaft is eccentrically arranged on one side of the rotating disc surface relative to the rotating shaft, the locking bolt is arranged on the side of the connecting rod, the connecting shaft and the locking bolt are connected by the transmission rod, the transmission rod is hingedly connected to the connecting shaft and the locking bolt at both ends, the rotating disc drives the connecting rod to move inwards and outwards, and the locking bolt is tightened to lock after moving to the position.

[0010] As a preferred solution, a bearing is arranged at the center of the rotating disc to fixedly connect the connecting shaft, a plurality of first locking holes are annularly arranged outside the bearing, and a second locking hole is arranged at the position corresponding to the first locking hole of the fixed column, and the bolt is arranged to pass through the first locking hole and the second locking hole to lock the rotating disc after moving to the position.

[0011] As a preferred solution, the end of the bolt is provided with a limiting convex.

[0012] As a preferred solution, the outer end of the connecting rod is provided with a limiting block, and the outer diameter of the limiting block is greater than the diameter of the through hole.

[0013] As a preferred solution, the difference between the rotation angles of adjacent first locking holes is not greater than 30 degrees.

[0014] As a preferred solution, the number of second locking holes is not less than 4.

[0015] As a preferred solution, the lower end of the cutter fine adjustment assembly is provided with a transverse adjustment structure connected to the U-shaped base.

[0016] Further, the upper end of the U-shaped base is provided with a sliding rail, and the transverse adjustment structure is slidingly arranged on the sliding rail and is limited by a lead screw.

[0017] The utility model has the beneficial effects that:

[0018] 1. The utility model adopts mechanical structure for adjustment and limiting, and has higher durability and precision, ensures long-term stability and reliability of the adjustment and limiting mechanism, and the equipment can run for a long time in the working environment without frequent maintenance or replacement of parts, and when replacement is needed, the damaged parts can be directly replaced, and the maintenance cost is extremely low.

[0019] 2. The fine adjustment structure of the utility model is used in cooperation with the rotating disc and the bolt, which not only makes the rotation angle more controllable, but also makes the adjustment process more intuitive, and the use of the bolt provides a simple and effective way to lock the position of the rotating disc, preventing accidental sliding or rotation during use. This stable control mechanism not only improves safety, but also ensures the accuracy and repeatability of adjustment. DRAWINGS

[0020] In order to make the content of the utility model more easily understood, the utility model will be further described in detail below according to specific embodiments and in combination with the drawings, in which:

[0021] Figure 1 It is a structural schematic view of the utility model.

[0022] Figure 2 It is Figure 1 It is a partial enlarged structural schematic view.

[0023] Figure 3 It is a structural schematic view of the utility model fine adjustment assembly.

[0024] Reference signs in the drawings are:

[0025] 1, U-shaped base; 2, transverse sliding mechanism; 7, rolling cutter; 12, screw rod; 27, U-shaped sliding support; 28, connecting rod; 281, locking bolt; 282, limiting block; 29, shell; 30, rotary disc assembly; 301, fixed column; 3011, second locking hole; 302, rotating shaft; 303, rotary disc; 3031, bearing; 3032, first locking hole; 304, connecting shaft; 305, bolt; 3051, limiting convex; 31, transmission rod. DETAILED DESCRIPTION

[0026] In order to illustrate the characteristics of the utility model, the utility model will be further described below in combination with the drawings and examples.

[0027] Examples:

[0028] Reference Figures 1 to 3 The embodiment provides a kind of shaft parts micro-rolling device for lathe, solve the problem of low accuracy and durability of current rolling machining cutter micro-adjustment device;The utility model provides a kind of shaft parts micro-rolling device for lathe, including U-shaped base 1 and two cutter fine adjustment assemblies, two described cutter fine adjustment assemblies are symmetrically set in the upper end of U-shaped base 1 two sides;Adopt double-roller structure can adapt to the machining requirement of different size shaft parts, by the coarse adjustment and fine adjustment of mutual interference cooperation, quick centering and micro-rolling can be realized, with strong universality, high efficiency, the advantage of improving surface finish and surface strengthening, especially important to extend the fatigue life of shaft parts.

[0029] The embodiment focuses on the improvement of fine adjustment device, specifically, the cutter fine adjustment assembly includes shell 29, rolling cutter 7 and U-shaped sliding support 27 with cutter bearing;The rolling cutter 7 is arranged on the bearing of U-shaped sliding support 27, the outer end of U-shaped sliding support 27 is provided with connecting rod 28, the shell 29 is provided with through hole, and the connecting rod 28 passes through the through hole;

[0030] A rotating disc assembly 30 is arranged outside the shell 29, which comprises a fixed column 301, a rotating shaft 302 and a rotating disc 303, the fixed column 301 is fixedly arranged on the side of the shell 29, the rotating shaft 302 is fixedly arranged on the side of the fixed column 301 close to the connecting rod 28, and the rotating disc 303 is rotatably arranged on the rotating shaft 302; the connecting shaft 304 is arranged eccentrically on the side of the rotating disc 303 away from the rotating shaft, and the locking bolt 281 is arranged on the side of the connecting rod 28; the connecting shaft 304 and the locking bolt 281 are connected through the transmission rod 31, the two ends of the transmission rod 31 are hingedly connected with the connecting shaft 304 and the locking bolt 281 respectively, the rotating disc 303 drives the connecting rod 28 to move inwards and outwards, and the locking bolt 281 is tightened to be locked after the connecting rod 28 is moved to the position.

[0031] The bearing 3031 is arranged in the center of the rotating disc 303 and fixedly connected with the connecting shaft 304, a plurality of first locking holes 3032 are arranged in the periphery of the bearing 3031 in a ring shape, the second locking holes 3011 are arranged on the fixed column 301 corresponding to the positions of the first locking holes 3032, and the rotating disc 303 is locked through the insertion of the bolt 305 through the first locking holes 3032 and the second locking holes 3011 after being moved to the position.

[0032] Preferably, the end of the bolt 305 is provided with a limiting protrusion 3051, and the outer end of the connecting rod 28 is provided with a limiting block 282, the outer diameter of the limiting block 282 is greater than the diameter of the through hole, so that the two limiting structures ensure that the equipment will not slip during operation.

[0033] Preferably, the difference between the rotation angles of adjacent first locking holes 3032 is not greater than 30 degrees, which can meet the required accuracy of adjustment, and in order to ensure the convenience and adaptability of installation, the number of second locking holes 3011 is not less than 4, and considering the stability of fixation, a plurality of bolts 305 can be placed at the same time for locking.

[0034] In addition, the lower end of the cutter fine adjustment assembly is provided with a transverse adjustment structure 2 connected with the U-shaped base 1, so that the device has the ability to process parts of different sizes, specifically, a slide rail is arranged on the upper end of the U-shaped base 1, the transverse adjustment structure 2 is slidingly arranged on the slide rail and is limited by the lead screw 12. The transverse displacement of the cutter is accurately adjusted by adjusting the lead screw 12.

[0035] The above embodiments and drawings are only used to illustrate the technical scheme of the utility model, and are not limited to the utility model, the preferred embodiments are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model. Other related technical structures not described in detail in the utility model are the existing technology in the art.

Claims

1. A lathe shaft parts micro-rolling device, comprising a U-shaped base (1) and two tool fine adjustment assemblies, the two tool fine adjustment assemblies are symmetrically arranged on both sides of the upper end of the U-shaped base (1); Characterized in that: The tool fine adjustment assembly is provided with an outer shell (29), a rolling tool (7) and a U-shaped sliding support (27) provided with a tool bearing; The rolling tool (7) is arranged on the bearing of the U-shaped sliding support (27), the outer end of the U-shaped sliding support (27) is provided with a connecting rod (28), the outer shell (29) is provided with a through hole, and the connecting rod (28) passes through the through hole; The outer side of the outer shell (29) is provided with a turntable assembly (30), the turntable assembly comprises a fixed column (301), a rotating shaft (302) and a turntable (303), the fixed column (301) is fixedly arranged on the side of the outer shell (29), the rotating shaft (302) is fixedly arranged on the side of the fixed column (301) close to the connecting rod (28), and the turntable (303) is rotatably arranged on the rotating shaft (302); The side of the connecting rod (28) is provided with a locking bolt (281), the connecting rod (28) is connected with the locking bolt (281) through a transmission rod (31), both ends of the transmission rod (31) are hingedly connected with the connecting shaft (304) and the locking bolt (281), the turntable (303) rotates to drive the connecting rod (28) to move inward and outward, and the locking bolt (281) is tightened to lock after moving to the position.

2. The micro-rolling device for shaft parts of a lathe according to claim 1, characterized in that: The center of the turntable (303) is provided with a bearing (3031) fixedly connected with the connecting shaft (304), a plurality of first locking holes (3032) are annularly arranged on the outer periphery of the bearing (3031), the fixed column (301) is provided with a second locking hole (3011) corresponding to the position of the first locking hole (3032), and a bolt (305) is arranged to pass through the first locking hole (3032) and the second locking hole (3011) to lock the turntable (303) after moving to the position.

3. The micro-rolling device for shaft parts of a lathe according to claim 2, characterized in that: The end of the bolt (305) is provided with a limiting convex (3051).

4. The micro-rolling device for shaft parts of a lathe according to claim 1, characterized in that: The outer end of the connecting rod (28) is provided with a limiting block (282), and the outer diameter of the limiting block (282) is greater than the diameter of the through hole.

5. The micro-rolling device for shaft parts of a lathe according to claim 3, characterized in that: The difference between the rotation angles of adjacent first locking holes (3032) is not greater than 30 degrees.

6. The micro-rolling device for shaft parts of a lathe according to claim 2, characterized in that: The number of second locking holes (3011) is not less than 4.

7. The micro-rolling device for shaft parts of a lathe according to claim 1, characterized in that: The lower end of the tool fine adjustment assembly is provided with a transverse adjustment structure (2) connected with the U-shaped base (1).

8. The micro-rolling device for shaft parts of a lathe according to claim 7, characterized in that: The upper end of the U-shaped base (1) is provided with a sliding rail, and the transverse adjustment structure (2) is slidingly arranged on the sliding rail and provided with a lead screw (12) for limiting.

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