Helical slot machining platform

Abstract

The utility model discloses a spiral groove processing platform, including milling power head and workpiece clamping part, its characterized in that: milling power head and workpiece clamping part install on same platform base, and milling power head can swing and be located on platform base, and the swing of milling power head is pushed by first drive piece, and workpiece clamping part includes clamping base plate, and clamping base plate can be circumferentially adjusted and located on platform base, and the clamping base plate is provided with the close -fitted assembly, and the close -fitted assembly is composed of movable block and static block that can be relatively close or far away, and movable block is movably arranged on clamping base plate, and the movement of movable block is pushed by second drive piece, and static block is fixedly arranged on clamping base plate, and the opposite side of movable block and static block is provided with the close -fitted hole of semicircle respectively, and the top of movable block and static block is provided with the milling give -way groove. The utility model discloses compact structure strong rigidity, and work vibration is little, and the efficiency is high, and the service life is long, and the installation mode is various.

Description

Technical Field

[0001] This utility model relates to a machining platform specifically designed for machining spiral grooves. Background Technology

[0002] Woodworking drill bits, impact drill bits, screws, and auger shafts often have spiral grooves with large strokes and wide slots. Currently, spiral groove machining is generally performed on dedicated, simple machine tools. The process involves: the bar stock is clamped by a workpiece clamping component mounted on the machine tool body; the tail end of the bar stock is held by a feeding component; during spiral groove machining, the feeding component simultaneously feeds and rotates the bar stock; and a separate milling power head performs a specific depth of cut. All three components work together to complete the spiral groove machining. The disadvantages are: the entire system is modular and lacks rigidity; additionally, the milling power head has a backlash during cut, resulting in significant vibration during spiral groove milling, leading to low machining efficiency and short tool life; furthermore, the installation method is limited. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a spiral groove processing platform with compact structure, high rigidity, low working vibration, high efficiency, long service life and various installation methods.

[0004] This utility model is implemented through the following technical solution: A spiral groove machining platform, comprising a milling power head and a workpiece clamping component, characterized in that: the milling power head and the workpiece clamping component are mounted on the same platform base; the milling power head is oscillatingly mounted on the platform base, and the oscillation of the milling power head is driven by a first driving component; the workpiece clamping component includes a clamping chassis, which is circumferentially adjustable on the platform base; a clamping assembly is provided on the clamping chassis, the clamping assembly consisting of a moving block and a stationary block that can move closer or further apart; the moving block is movably mounted on the clamping chassis, and the movement of the moving block is driven by a second driving component; the stationary block is fixedly mounted on the clamping chassis; semi-circular clamping holes are respectively provided on the opposite sides of the moving block and the stationary block; and milling clearance grooves are provided on the top of the moving block and the stationary block.

[0005] The milling power head includes a milling cutter shaft with both ends extending out of the cutter shaft seat. One end of the milling cutter shaft is used for mounting the milling cutter, and the other end is connected to a pulley and a counterweight wheel. The pulley is connected to the motor pulley via a belt. The motor mounting base and the cutter shaft seat are fixedly connected. The motor mounting base is connected to the platform base via a swing shaft. A limit block is set on the platform base, which faces the cutter shaft seat to limit the downward swing of the milling power head.

[0006] The side of the moving insert away from the stationary insert is a wedge surface, and a wedge block is provided on the corresponding wedge surface. The wedge block can be moved up and down in the wedge groove. A swing rod can be swung on the mounting base. One end of the swing rod is connected to the wedge block, and the other end is connected to the second drive component.

[0007] Wear-resistant rods are installed around the clamping hole, and the wear-resistant rods are installed inside the moving and stationary inserts. Part of the wear-resistant rods protrudes outward from the hole wall of the clamping hole.

[0008] The platform base is circumferentially adjustable and is mounted on the platform bottom plate.

[0009] With the above technical solution, the milling power head and workpiece clamping component are mounted on the same platform base. The platform base can be made of thick cast iron. Meanwhile, the milling power head is mounted in a swing manner, which effectively eliminates the feed backlash of the milling power head during the feed. In conjunction with the counterweight wheel of the milling power head, a large rotational inertia is provided. Therefore, the working vibration is small, the processing efficiency is high, and the tool life is improved during spiral groove milling. In addition, since the milling power head and workpiece clamping component adopt an integrated structure, the installation method can be diversified, and it can be installed and used on the lathe guide rail. Attached Figure Description

[0010] The present invention includes the following figures: Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 for Figure 1 Rear view, Figure 3 for Figure 2 View after removing the milling power head. Detailed Implementation

[0011] like Figure 1-3As shown, the spiral groove machining platform of this utility model includes a milling power head and a workpiece clamping component. The milling power head and the workpiece clamping component are mounted on the same platform base 2, which is a thick cast iron part. The milling power head is oscillatingly mounted on the platform base 2. The oscillation of the milling power head is driven by a first cylinder 16, the cylinder body of which is hinged to the platform base 2. The milling power head includes a milling cutter shaft, with both ends of the milling cutter shaft extending outward from the cutter shaft seat 11. One end of the milling cutter shaft is used for mounting the milling cutter 8, and the other end is connected to the pulley 1. 0 is connected to the counterweight wheel 9, and the pulley 10 is connected to the motor pulley 15 via the belt 7. The motor 5 is fixedly installed on the motor mounting base 6. The motor mounting base 6 and the cutter shaft seat 11 are fixedly connected. The motor mounting base 6 is fixedly connected to the swing shaft 4. The two ends of the swing shaft 4 are supported by bearings. The bearings are installed in the bearing holes of the support seats of the platform base 2. The platform base 2 is fixedly provided with a limiting block 12. The limiting block 12 faces the cutter shaft seat 11 and limits the downward swing of the milling power head. The push rod of the first cylinder 16 is connected to the motor mounting base 6.

[0012] The workpiece clamping component includes a clamping base 1, which is circumferentially adjustable and mounted on a platform base 2. The clamping base 1 is provided with a first eyelet 23. The platform base 2 is circumferentially adjustable and mounted on a platform base plate 3. The platform base 2 is provided with a second eyelet 24. In this way, by adjusting the circumferential angle of both, a spiral groove with a spiral angle range of 20-40 degrees can be processed. A clamping assembly is provided on the clamping base 1. The clamping assembly consists of a movable insert 18 and a stationary insert 19 that can be relatively close to or far apart. The movable insert 18 is movably mounted in the dovetail groove of the clamping base 1 via a dovetail at its bottom. The movement of the movable insert 18 is driven by the second cylinder 14. The stationary insert 19 is fixedly mounted on the clamping base 1. Semi-circular clamping holes 22 are provided on the opposite sides of the movable insert 18 and the stationary insert 19. Four wear-resistant rods 21 made of tungsten steel are provided around the clamping holes 22. Two of the wear-resistant rods are installed in the movable insert 18 and the other two are installed in the stationary insert 19. The outer circle of the wear-resistant rods 21 protrudes partially from the hole wall of the clamping hole 22, generally by about 0.5 mm, to improve the wear resistance of the clamping hole 22. Milled relief grooves 20 are provided on the top of the movable insert 18 and the stationary insert 19. The side of the moving insert 18 away from the stationary insert 19 is a wedge surface, and a wedge block 17 is provided on the corresponding wedge surface. The wedge block 17 can be moved up and down in the wedge groove. A swing rod 13 can be swung on the mounting base 1. One end of the swing rod 13 is hinged to the wedge block 17, and the other end is hinged to the push rod of the second cylinder 14. The hinge connection hole is an elongated hole.

[0013] The processing procedure of this utility model is as follows: The platform base plate is fixedly installed, the bar stock for processing the spiral groove passes through the clamping hole, the second cylinder is activated, pushing the swing arm to make the wedge block move downwards, the wedge block pushes the moving insert block closer to the stationary insert block, so the clamping hole will clamp the bar stock with appropriate force, and the tail end of the bar stock is clamped by the feeding component. Next, the spiral groove of the bar stock can be processed. The first cylinder pushes the front end of the milling power head downwards, and at the same time the motor drives the milling cutter to rotate rapidly. The milling cutter enters the milling clearance groove to mill the bar stock until the cutter shaft seat touches the limit block, and the milling cutter reaches the milling depth. Then, the feeding component that clamps the bar stock performs the action of feeding and rotating the bar stock at the same time, pushing the bar stock forward to overcome the clamping force until the spiral groove is processed on the entire bar stock.

Claims

1. A spiral groove machining platform, comprising a milling power head and a workpiece clamping component, characterized in that: The milling power head and the workpiece clamping component are mounted on the same platform base. The milling power head can swing on the platform base, and the swing of the milling power head is driven by the first driving component. The workpiece clamping component includes a clamping chassis, which is circumferentially adjustable on the platform base. A clamping assembly is provided on the clamping chassis. The clamping assembly consists of a moving block and a stationary block that can move closer or further apart. The moving block is movably mounted on the clamping chassis, and the movement of the moving block is driven by the second driving component. The stationary block is fixedly mounted on the clamping chassis. Semi-circular clamping holes are provided on the opposite sides of the moving block and the stationary block. Milling clearance grooves are provided on the top of the moving block and the stationary block.

2. The spiral groove machining platform as described in claim 1, characterized in that: The milling power head includes a milling cutter shaft with both ends extending out of the cutter shaft seat. One end of the milling cutter shaft is used for mounting the milling cutter, and the other end is connected to a pulley and a counterweight wheel. The pulley is connected to the motor pulley via a belt. The motor mounting base and the cutter shaft seat are fixedly connected. The motor mounting base is connected to the platform base via a swing shaft. A limit block is set on the platform base, which faces the cutter shaft seat to limit the downward swing of the milling power head.

3. The spiral groove machining platform as described in claim 1, characterized in that: The side of the moving insert away from the stationary insert is a wedge surface, and a wedge block is provided on the corresponding wedge surface. The wedge block can be moved up and down in the wedge groove. A swing rod can be swung on the mounting base. One end of the swing rod is connected to the wedge block, and the other end is connected to the second drive component.

4. The spiral groove machining platform as described in claim 1, 2, or 3, characterized in that: Wear-resistant rods are installed around the clamping hole, and the wear-resistant rods are installed inside the moving and stationary inserts. Part of the wear-resistant rods protrude outward from the wall of the clamping hole.

5. The spiral groove machining platform as described in claim 1, characterized in that: The platform base is circumferentially adjustable and is mounted on the platform bottom plate.

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