Milling cutter with distance adjusting structure

Abstract

The utility model discloses a milling cutter with a distance adjusting structure, which relates to the field of milling cutters, and comprises a milling cutter mounting seat and a milling cutter main body detachably fixed at the bottom end of the milling cutter mounting seat, the bottom end of the milling cutter mounting seat is provided with a mounting groove, and a lifting part is inserted in the mounting groove in a matched manner; fastening pieces for fixing the milling cutter main body are arranged at the two ends of the lifting part, the milling cutter mounting seat is slidably sleeved with a lifting ring connected with the lifting part, screw holes are formed in the two sides of the outer wall of the milling cutter mounting seat at equal intervals, and fastening bolts inserted into the screw holes in a threaded mode are mounted on the outer wall of the lifting ring. The fastening bolts on the outer wall of the lifting ring are inserted into the screw holes in different positions of the milling cutter mounting seat in a threaded manner, so that the heights of the lifting ring and the lifting part are adjusted, the position of the milling cutter main body fixed in the accommodating groove in the bottom end of the lifting part is adjusted, and the lifting ring and the milling cutter main body are kept fixed by adjusting the bolts; and the stability of the milling cutter main body after distance adjustment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of milling cutter, concretely is a milling cutter with distance adjusting structure. BACKGROUND

[0002] Milling cutter is a rotary cutter with one or more teeth for milling. Each tooth cuts off the excess of the workpiece intermittently in turn during work. Milling cutter is mainly used for milling plane, step, groove, shaped surface and cutting off workpiece on milling machine. In order to ensure that the average chip thickness per tooth feed is high enough, the number of milling cutter teeth suitable for the process must be determined correctly.

[0003] The patent with the application number 202420072966.5 discloses an adjustable milling cutter, which comprises a milling cutter, a rotating shaft, a connecting ring, an adjusting assembly, a handle and the like. The milling cutter is located below the rotating shaft, and the connecting ring is located below the handle. The adjusting assembly comprises an adjusting sleeve, a piston rod, an air cylinder, a sliding block and a fixing assembly. The air cylinder is located in the connecting ring, the piston rod is fixedly connected with the air cylinder, the adjusting sleeve is fixedly connected with the piston rod and located on the side of the piston rod away from the air cylinder, and the sliding block is fixedly connected with the adjusting sleeve and located on both sides of the adjusting sleeve. The inner wall of the connecting ring is provided with a sliding groove, and the fixing assembly is located below the adjusting sleeve.

[0004] The above technical scheme adjusts the position of the mounting seat for fixing the milling cutter by using the air cylinder. However, when the milling cutter contacts the workpiece, extrusion force is generated, which extrudes the gas in the air cylinder and causes the air cylinder to shake, thereby reducing the stability of the distance adjustment of the milling cutter. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a milling cutter with distance adjusting structure to solve the technical problem of poor stability of distance adjustment of the milling cutter due to the extrusion force generated when the milling cutter contacts the workpiece, which extrudes the gas in the air cylinder and causes the air cylinder to shake.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a milling cutter with distance adjusting structure, which comprises a milling cutter mounting seat and a milling cutter main body detachably fixed at the bottom end of the milling cutter mounting seat. The bottom end of the milling cutter mounting seat is provided with a mounting groove, and the mounting groove is fitted with a lifting part. The two ends of the lifting part are provided with fasteners for fixing the milling cutter main body. A lifting ring connected with the lifting part is slidably sleeved on the milling cutter mounting seat. Equidistant screw holes are formed on the two sides of the outer wall of the milling cutter mounting seat. The outer wall of the lifting ring is provided with fastening bolts screwed into the screw holes.

[0007] The utility model is further provided with a clamping part on the milling cutter mounting seat, and a snap ring is fixedly sleeved at the top end of the milling cutter mounting seat.

[0008] The present invention is further configured such that both ends of the milling cutter mounting base are provided with sliding grooves, and a slider is inserted into the sliding groove.

[0009] The present invention is further configured such that the two ends of the slider are fixedly connected to the lifting ring and the lifting part respectively, and the bottom end of the lifting part is provided with a receiving groove.

[0010] The present invention is further configured such that telescopic grooves for inserting sliders are provided on both sides of the inner wall of the receiving groove, and the fastener is a key block that fits into the telescopic groove.

[0011] The present invention is further configured such that the milling cutter body is symmetrically provided with keyways at the top of the receiving groove, and the key block is fitted into the keyway.

[0012] The present invention is further configured such that grooves are provided on both sides of the outer wall of the milling cutter mounting base, and adjusting bolts are embedded in the grooves.

[0013] The present invention is further configured such that the adjusting bolt is rotatably engaged in the milling cutter mounting seat, and one end of the adjusting bolt extending into the telescopic groove is threaded into the key block.

[0014] In summary, the present invention has the following advantages: The present invention has a lifting part for fixing the milling cutter body slidably arranged in the milling cutter mounting seat, and a lifting ring connected to the lifting part is sleeved on the mounting seat. The fastening bolts on the outer wall of the lifting ring are threaded into the screw holes at different positions of the milling cutter mounting seat, thereby adjusting the height of the lifting ring and the lifting part, thereby adjusting the position of the milling cutter body fixed in the receiving groove at the bottom end of the lifting part. By adjusting the bolts, the lifting ring and the milling cutter body are kept fixed, thus improving the stability of the milling cutter body after the distance is adjusted.

[0015] By fixing a slider that fits into the slide groove between the lifting ring and the lifting part, the slider positions the lifting part axially. At the same time, tightening the adjusting bolt in the groove drives the key block to slide in the telescopic groove and abut against the keyway of the milling cutter body, thereby keeping the milling cutter body fixed in the receiving groove at the bottom of the lifting part. Loosening the adjusting bolt makes it easy to disassemble and replace the milling cutter body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the milling cutter of this utility model;

[0018] Figure 3 This is a cross-sectional view of the milling cutter mounting base of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Milling cutter mounting base; 2. Clamping part; 3. Snap ring; 4. Lifting ring; 5. Slide groove; 6. Milling cutter body; 7. Screw hole; 8. Fastening bolt; 9. Keyway; 10. Mounting groove; 11. Lifting part; 12. Receiving groove; 13. Slider; 14. Groove; 15. Telescopic groove; 16. Key block; 17. Adjusting bolt. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] A milling cutter with an adjustable pitch structure, such as Figures 1-4 As shown, the device includes a milling cutter mounting base 1 and a milling cutter body 6 that is detachably fixed to the bottom end of the milling cutter mounting base 1. The bottom end of the milling cutter mounting base 1 is provided with a mounting groove 10, and a lifting part 11 is inserted into the mounting groove 10. Both ends of the lifting part 11 are provided with fasteners for fixing the milling cutter body 6. A lifting ring 4 connected to the lifting part 11 is slidably sleeved on the milling cutter mounting base 1. Threaded holes 7 are provided at equal intervals on both sides of the outer wall of the milling cutter mounting base 1. Fastening bolts 8 that are threaded into the threaded holes 7 are installed on the outer wall of the lifting ring 4.

[0023] The milling cutter mounting base 1 is provided with a clamping part 2, and a retaining ring 3 is fixedly sleeved on the top of the milling cutter mounting base 1. Both ends of the milling cutter mounting base 1 are provided with sliding grooves 5, and sliders 13 are inserted into the sliding grooves 5. The two ends of the sliders 13 are fixedly connected to the lifting ring 4 and the lifting part 11, respectively. The mounting base is fitted with a lifting ring 4 connected to the lifting part 11. The fastening bolts 8 on the outer wall of the lifting ring 4 are threaded into the screw holes 7 at different positions of the milling cutter mounting base 1, thereby adjusting the height of the lifting ring 4 and the lifting part 11, thereby adjusting the position of the milling cutter body 6 fixed in the receiving groove 12 at the bottom of the lifting part 11. The adjusting bolts 17 keep the lifting ring 4 and the milling cutter body 6 fixed, improving the stability of the milling cutter body 6 after the distance is adjusted.

[0024] Furthermore, the bottom end of the lifting part 11 is provided with a receiving groove 12. Both sides of the inner wall of the receiving groove 12 are provided with telescopic grooves 15 that extend into the slider 13. The fastener is a key block 16 that fits into the telescopic groove 15. The milling cutter body 6 is embedded in the top of the receiving groove 12 and symmetrically provided with keyways 9. The key block 16 fits into the keyway 9. Both sides of the outer wall of the milling cutter mounting base 1 are provided with grooves 14. An adjusting bolt 17 is embedded in the groove 14. The adjusting bolt 17 is rotated and engaged in the milling cutter mounting base 1. One end of the adjusting bolt 17 that extends into the telescopic groove 15 is threaded into the key block 16. The slider 13 axially positions the lifting part 11. At the same time, tightening the adjusting bolt 17 in the groove 14 causes the key block 16 to slide in the telescopic groove 15 and abut against the keyway 9 of the milling cutter body 6, thereby keeping the milling cutter body 6 fixed in the receiving groove 12 at the bottom end of the lifting part 11.

[0025] The working principle of this utility model is as follows: When in use, the milling cutter body 6 is inserted into the receiving groove 12, and the adjusting bolt 17 in the groove 14 is tightened to drive the key block 16 to slide in the telescopic groove 15 and abut against the keyway 9 of the milling cutter body 6, thereby keeping the milling cutter body 6 fixed in the receiving groove 12 at the bottom of the lifting part 11. After loosening the fastening bolt 8, the lifting ring 4 drives the slider 13 and the lifting part 11 to slide in the milling cutter mounting seat 1, adjusting the position of the milling cutter body 6. After adjustment, the fastening bolt 8 on the outer wall of the lifting ring 4 is threaded into the screw holes 7 at different positions of the milling cutter mounting seat 1, thereby adjusting the height of the lifting ring 4 and the lifting part 11, and thus adjusting the position of the milling cutter body 6 fixed in the receiving groove 12 at the bottom of the lifting part 11. The adjusting bolt 17 keeps the lifting ring 4 and the milling cutter body 6 fixed, improving the stability of the milling cutter body 6 after adjustment.

[0026] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A milling cutter with an adjustable pitch structure, comprising a milling cutter mounting base (1) and a milling cutter body (6) detachably fixed to the bottom end of the milling cutter mounting base (1), characterized in that: The bottom end of the milling cutter mounting base (1) is provided with a mounting groove (10), and a lifting part (11) is inserted into the mounting groove (10). Both ends of the lifting part (11) are provided with fasteners for fixing the milling cutter body (6). A lifting ring (4) connected to the lifting part (11) is slidably sleeved on the milling cutter mounting base (1). Threaded holes (7) are provided at equal intervals on both sides of the outer wall of the milling cutter mounting base (1). Fastening bolts (8) with threads inserted into the threaded holes (7) are installed on the outer wall of the lifting ring (4).

2. A milling cutter with an adjustable pitch structure according to claim 1, characterized in that: The milling cutter mounting base (1) is provided with a clamping part (2), and a retaining ring (3) is fixedly sleeved on the top end of the milling cutter mounting base (1).

3. A milling cutter with an adjustable pitch structure according to claim 2, characterized in that: Both ends of the milling cutter mounting base (1) are provided with sliding grooves (5), and a slider (13) is inserted into the sliding groove (5).

4. A milling cutter with an adjustable pitch structure according to claim 3, characterized in that: The two ends of the slider (13) are fixedly connected to the lifting ring (4) and the lifting part (11) respectively, and the bottom end of the lifting part (11) is provided with a receiving groove (12).

5. A milling cutter with an adjustable pitch structure according to claim 4, characterized in that: The inner walls of the receiving groove (12) are provided with telescopic grooves (15) that extend into the slider (13), and the fastener is a key block (16) that fits into the telescopic groove (15).

6. A milling cutter with an adjustable pitch structure according to claim 5, characterized in that: The milling cutter body (6) is embedded in the top of the receiving groove (12) and symmetrically provided with keyways (9), and the key block (16) is fitted into the keyway (9).

7. A milling cutter with an adjustable pitch structure according to claim 6, characterized in that: The milling cutter mounting base (1) has grooves (14) on both sides of its outer wall, and an adjusting bolt (17) is embedded in the groove (14).

8. A milling cutter with an adjustable pitch structure according to claim 7, characterized in that: The adjusting bolt (17) is rotatably engaged in the milling cutter mounting base (1), and one end of the adjusting bolt (17) extending into the telescopic groove (15) is threaded into the key block (16).

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