Adjustable PCD (Poly Crystal Diamond) face milling cutter

Abstract

The utility model discloses an adjustable PCD (Poly Crystal Diamond) face milling cutter head which comprises a cutter head, a cutter head frame, a cutter head, a cutter frame pressing block and an adjusting rod, the upper end of the cutterhead is provided with a cutter head mounting disc surface, and the lower end of the cutterhead is provided with a cutterhead shaft head; the cutter head is provided with a cutter frame groove and a shaft rod sleeve; the shaft rod is sleeved below the knife rest groove; the lower end of the tool rest groove communicates with the shaft rod sleeve. The tool bit frame is coupled in the tool rest groove through a tool rest pressing block; the adjusting rod is coupled in the shaft rod sleeve through a shaft rod pressing block; the lower end of the headstock is in worm and gear meshing transmission with the adjusting rod. The adjusting rod can adjust the height of the cutter head extending out of the cutter head at will, and the self-locking function of the worm gear and the worm can prevent the problem of position deviation caused by rotation centrifugation of the cutter head; the plane machining precision is improved, and the surface milling machining quality of products is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool cutting tools, and in particular relates to an adjustable PCD face milling cutter disc. Background Art

[0002] The cutterhead faces the surface to be machined, with the blade protruding from the milling disc surface, creating a certain gap between the two. However, existing milling discs have a flat surface on one side where the blade is mounted, and the milling cutter is typically fixed to the disc, preventing the blade's height from being adjusted. In particular, if the height is too low, chip removal is affected, resulting in surface roughness and errors that do not meet requirements, impacting product quality. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and provide an adjustable PCD face milling cutter disc.

[0004] An adjustable PCD face milling cutter disc comprises: a cutter disc 1, a cutter head holder 2, a cutter head 3, a cutter head pressing block 4, and an adjusting rod 5; a cutter head mounting disc surface 11 is provided at the upper end of the cutter disc 1, and a cutter disc shaft head 12 is provided at the lower end of the cutter disc 1; a cutter head slot 13 and a shaft rod sleeve 14 are provided on the cutter disc 1; the shaft rod sleeve 14 is provided below the cutter head slot 13; the lower end of the cutter head slot 13 is connected to the shaft rod sleeve 14; the cutter head holder 2 is axially connected to the cutter head slot 13 through the cutter head pressing block 4; the adjusting rod 5 is axially connected to the shaft rod sleeve 14 through the shaft rod pressing block 6; the lower end of the head holder 2 is engaged with the adjusting rod 5 for worm gear transmission.

[0005] The cutter head frame 2 is a steel curved-shaped component; the lower end of the cutter head frame 2 is provided with a semicircular arc surface 21, and the semicircular arc surface is provided with worm gear teeth 22; a cutter head frame shaft rod 23 is provided at the axis center of the worm gear teeth 22; the upper end of the cutter head frame 2 is provided with a cutter head mounting portion 24; the cutter head mounting portion 24 is a groove adapted to the cutter head 3; the cutter head 3 is locked and fixed in the cutter head mounting portion 24.

[0006] A cutter head frame sliding portion 131 is provided in the cutter head frame groove 13; a shaft rod sliding groove 132 is provided on one side of the cutter head frame sliding portion 131; the cutter head frame sliding portion 131 is adapted to the shape of the cutter head frame 2; the cutter head frame shaft 23 is sleeved in the shaft rod sliding groove 132; the cutter head mounting portion 24 is a groove adapted to the cutter head 3; the cutter head 3 is locked and fixed in the cutter head mounting portion 24.

[0007] The adjusting rod 5 is provided with: a polygonal column 51, a rod body 52, and a worm 53; the polygonal column 51, the rod body 52, and the worm 53 are integrally formed; the polygonal column 51 is provided at the exposed end of the rod body 52; the worm 53 is provided at the middle and rear side of the rod body 52; and a shaft sleeve connecting portion 521 is provided at the tail end of the rod body 52;

[0008] The worm 53 is meshed with the worm gear 22 for transmission.

[0009] The tool holder pressing block 4 is provided with bearing bushes 41 on both sides of the lower end; the tool holder pressing block 4 is locked and fixed to the tool holder groove 13 by a first bolt 42; the shaft sleeve composed of the bearing bushes 41 and the shaft groove 132 is sleeved with the tool head frame shaft 23.

[0010] A pressure block shaft hole is provided in the middle of the shaft rod pressure block 6, and the rod body 52 is sleeved in the pressure block shaft hole near the polygonal column 51; the shaft rod pressure block 6 is locked and fixed to the side of the cutter head mounting plate 11 by a locking screw 62; and the axial center lines of the rod sleeve shaft connection part 141, the adjusting rod 5 and the shaft rod pressure block 6 coincide.

[0011] There are four tool holder slots 13 and four shaft rod sleeves 14 , and the four tool holder slots 13 and the four shaft rod sleeves 14 are equidistantly arranged in a circular array at the upper end of the cutter disc 1 .

[0012] This technical solution provides an adjustable PCD face milling cutter disc, comprising: a cutter disc 1, a cutter head holder 2, a cutter head 3, a cutter head holder pressure block 4, and an adjustment rod 5. The upper end of the cutter disc 1 is provided with a cutter head mounting surface 11, and the lower end of the cutter disc 1 is provided with a cutter disc shaft head 12. The cutter disc 1 is provided with a cutter head slot 13 and a shaft sleeve 14. The shaft sleeve 14 is located below the cutter head slot 13. The lower end of the cutter head slot 13 is connected to the shaft sleeve 14. The cutter head holder 2 is axially connected to the cutter head slot 13 via the cutter head holder pressure block 4. The adjustment rod 5 is axially connected to the shaft sleeve 14 via the shaft sleeve 6. The lower end of the head holder 2 engages with the adjustment rod 5 via a worm gear. The adjustment rod 5 can arbitrarily adjust the height of the cutter head extending from the cutter disc 1. The self-locking function of the worm gear also prevents the cutter head from rotating centrifugally and causing positional deviation. This improves plane machining accuracy and ensures the quality of product milling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of an adjustable PCD face milling cutter disc of the utility model;

[0014] Figure 2 This is a partial cross-sectional view of the structure of an adjustable PCD face milling cutter disc of the utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the cutter disc structure of an adjustable PCD face milling cutter disc of the utility model;

[0016] Figure 4 This is a schematic diagram of the cutter head frame and worm structure of an adjustable PCD face milling cutter disc of the utility model;

[0017] In the figure: 1. cutter disc, 11. cutter head mounting plate, 12. cutter disc shaft head, 13. tool holder groove, 131. cutter head holder sliding part, 132. shaft rod sliding groove, 14. shaft rod sleeve, 141. rod sleeve shaft connection part, 2. cutter head frame, 21. semicircular arc surface, 22. worm gear teeth, 23. cutter head frame shaft, 24. cutter head mounting part, 3. cutter head, 4. tool holder pressure block, 41. bearing, 42. first bolt, 5. adjusting rod, 51. polygonal column, 52. rod body, 521. shaft sleeve connecting part, 53. worm, 6. shaft rod pressure block, 62. locking screw. DETAILED DESCRIPTION

[0018] The technical solution will be further clearly and completely described below in conjunction with the accompanying drawings of the technical solution. The described embodiments are only a part of the technical solution, not all embodiments. Based on the technical solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this utility model. Example

[0019] See also Figures 1 to 4 As shown, an adjustable PCD face milling cutter disc includes: a cutter disc 1, a cutter head holder 2, a cutter head 3, a cutter head holder pressing block 4, an adjusting rod 5, and a shaft rod pressing block 6;

[0020] The upper end of the cutter head 1 is provided with a cutter head mounting surface 11, and the lower end of the cutter head 1 is provided with a cutter head shaft head 12; the cutter head mounting surface 11 and the cutter head shaft head 12 are integrally formed;

[0021] The cutterhead 1 is provided with a tool holder slot 13; there are four tool holder slots 13, which are arranged in an equidistant annular array at the upper end of the cutterhead 1; a shaft sleeve 14 is provided below each of the four tool holder slots 13; the lower end of the tool holder slot 13 is connected to the shaft sleeve 14; the four tool holder slots 13 have the same structure; the four shaft sleeves 14 have the same structure;

[0022] A tool head frame 2 is provided in each of the four tool holder slots 13; a tool head 3 is locked and fixed to the upper end of the tool head frame 2; an adjustment rod 5 is provided in each of the four shaft sleeves 14; the lower end of the tool head frame 2 is engaged with the adjustment rod 5 for worm gear transmission.

[0023] The cutter head mounting plate 11 is provided with a set of tool holder slots 13 and a shaft sleeve 14, which can realize the face milling of the workpiece; preferably, a structure with four tool holder slots 13 is provided, and the cutter heads 3 provided in the four tool holder slots 13 can simultaneously face mill the processing surface.

[0024] The upper surface of the cutter head mounting plate 11 can be scraped and ground to improve the flatness and lubrication performance of the machine tool and extend its service life.

[0025] The cutter head frame 2 is a steel curved member; a semicircular arc surface 21 is provided at the lower end of the cutter head frame 2, and a worm gear 22 is provided on the semicircular arc surface; a cutter head frame shaft 23 is provided at the axis of the worm gear 22; a cutter head mounting portion 24 is provided at the upper end of the cutter head frame 2;

[0026] The tool holder groove 13 is provided with a tool head frame sliding portion 131; a shaft rod sliding groove 132 is provided on one side of the tool head frame sliding portion 131; the tool head frame sliding portion 131 is adapted to the shape of the tool head frame 2; the tool head frame shaft 23 is sleeved in the shaft rod sliding groove 132; the tool head mounting portion 24 is a groove adapted to the tool head 3; the tool head 3 is locked and fixed in the tool head mounting portion 24.

[0027] The cutter head 3 is a PCD face milling cutter.

[0028] The adjusting rod 5 is provided with: a polygonal column 51, a rod body 52, and a worm 53; the polygonal column 51, the rod body 52 and the worm 53 are integrally formed; the polygonal column 51 is provided at the exposed end of the rod body 52; the worm 53 is provided at the middle and rear side of the rod body 52; the rear end of the rod body 52 is provided with a shaft sleeve connecting portion 521;

[0029] The worm 53 is meshed with the worm gear 22 for transmission.

[0030] The tool holder pressing block 4 is provided with bearing bushes 41 on both sides of the lower end; the tool holder pressing block 4 is fixed to the tool holder groove 13 by a first bolt 42; the shaft sleeve composed of the bearing bushes 41 and the shaft groove 132 is sleeved with the tool head frame shaft 23;

[0031] The upper end surface of the tool holder pressing block 4 is slightly lower than the upper end surface of the cutter head mounting disc 11, so as to avoid motion interference between the cutter disc 1 and the face milling workpiece when the cutter disc 1 rotates;

[0032] The inner bottom of the shaft sleeve 14 is provided with a rod sleeve shaft connection portion 141, and the shaft sleeve connection portion 521 is sleeved in the rod sleeve shaft connection portion 141;

[0033] The shaft pressure block 6 is provided with a pressure block shaft hole in the middle, and the rod body 52 is sleeved in the pressure block shaft hole near the polygonal column 51; the shaft pressure block 6 is locked and fixed to the side of the cutter head mounting plate 11 by a locking screw 62; and the axial center lines of the rod sleeve shaft connection part 141, the adjusting rod 5 and the shaft pressure block 6 coincide.

Claims

1. An adjustable PCD face milling cutter, comprising: A cutter disc (1), a cutter head frame (2), a cutter head (3), a cutter head pressing block (4), and an adjusting rod (5); characterized in that: a cutter head mounting disc (11) is provided at the upper end of the cutter disc (1), and a cutter disc shaft head (12) is provided at the lower end of the cutter disc (1); a cutter head groove (13) and a shaft rod sleeve (14) are provided on the cutter disc (1); the shaft rod sleeve (14) is provided below the cutter head groove (13); the lower end of the cutter head groove (13) is connected to the shaft rod sleeve (14); the cutter head frame (2) is axially connected to the cutter head groove (13) through the cutter head pressing block (4); the adjusting rod (5) is axially connected to the shaft rod sleeve (14) through the shaft rod pressing block (6); the lower end of the cutter head frame (2) and the adjusting rod (5) are worm-geared for transmission.

2. The adjustable PCD face milling cutter according to claim 1, characterized in that: The cutter head frame (2) is a steel curved-shaped component; a semicircular arc surface (21) is provided at the lower end of the cutter head frame (2), and worm gear teeth (22) are provided on the semicircular arc surface; a cutter head frame shaft rod (23) is provided at the axis of the worm gear teeth (22); a cutter head mounting portion (24) is provided at the upper end of the cutter head frame (2); the cutter head mounting portion (24) is a groove adapted to the cutter head (3); and the cutter head (3) is locked and fixed in the cutter head mounting portion (24).

3. The adjustable PCD face milling cutter according to claim 2, characterized in that: A cutter head frame sliding portion (131) is provided in the cutter head frame groove (13); a shaft rod sliding groove (132) is provided on one side of the cutter head frame sliding portion (131); the cutter head frame sliding portion (131) is adapted to the shape of the cutter head frame (2); and the cutter head frame shaft rod (23) is sleeved in the shaft rod sliding groove (132).

4. The adjustable PCD face milling cutter according to claim 3, characterized in that: The adjusting rod (5) is respectively provided with: a polygonal column (51), a rod body (52), and a worm (53); the polygonal column (51), the rod body (52), and the worm (53) are integrally formed; the polygonal column (51) is provided at the exposed side end of the rod body (52); the worm (53) is provided at the middle and rear side of the rod body (52); a shaft sleeve connecting portion (521) is provided at the rear end of the rod body (52); and the worm (53) is meshed with the worm gear teeth (22) for transmission.

5. The adjustable PCD face milling cutter according to claim 4, characterized in that: The lower ends of the tool holder pressing block (4) are provided with bearing bushes (41); the tool holder pressing block (4) is fixed to the tool holder groove (13) by bolt locking; the shaft rod sleeve composed of the bearing bushes (41) and the shaft rod slide groove (132) is connected to the tool head frame shaft rod (23).

6. The adjustable PCD face milling cutter according to claim 5, characterized in that: A pressing block axial hole is provided in the middle of the shaft rod pressing block (6), and the rod body (52) is sleeved in the pressing block axial hole near the polygonal column (51); the shaft rod pressing block (6) is fixed to the side of the cutter head mounting plate (11) by a locking screw; and the axis center lines of the rod sleeve axial connection part (141), the adjusting rod (5) and the shaft rod pressing block (6) coincide with each other.

7. The adjustable PCD face milling cutter according to claim 1 or 6, characterized in that: There are four tool holder slots (13) and four shaft rod sleeves (14), and the four tool holder slots (13) and the four shaft rod sleeves (14) are arranged in an equidistant annular array at the upper end of the cutter disc (1).

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