A milling device for machining a part

Abstract

This invention discloses a milling machine for machining parts, including a milling cutter, a clamping device, a rotating device, and a linear reciprocating motion device. The clamping device clamps the part, the rotating device drives the part to rotate, the linear reciprocating motion device drives the part to reciprocate linearly, and the milling cutter machine the surface of the part. The clamping device includes a wedge, a thrust column, a lever, a first spring, a connecting block, and a boss. The part is disc-shaped with a cavity at its bottom. The bottom surface of the thrust column is inclined and located on the inclined surface of the wedge. A connecting block is located on the top surface of the thrust column, with arc grooves on both sides of the connecting block. The lever is horizontally arranged, with one end spherical and located within the arc groove, and the other end abutting against the side of the cavity inside the part. A first spring is located between the top surface of the connecting block and the bottom surface of the boss, and the top surface of the boss abuts against the top surface of the cavity inside the part. The milling cutter, clamping device, rotating device, and linear reciprocating motion device are all mounted on a base.

Description

Technical Field

[0001] This invention relates to the technical field of machining equipment, and more particularly to a milling machine for machining parts. Background Technology

[0002] A milling machine is a mechanical device that uses a rotating multi-edged cutting tool (milling cutter) to cut and process a workpiece to obtain complex shapes such as planes, grooves, contours, and gears. It is one of the most widely used metal cutting machine tools in modern manufacturing.

[0003] The core of milling is that "the rotation of the cutting tool is the main motion, and the movement of the workpiece is the feed motion." Main motion: The milling cutter, mounted on the spindle, rotates at high speed, generating the cutting speed.

[0004] Feed motion: The workpiece is fixed on the worktable. By moving the worktable in the X, Y, and Z axes (or moving the spindle head), the workpiece and the milling cutter are relatively displaced, thereby removing excess material.

[0005] Milling machines are mainly divided into three categories: conventional milling machines, CNC milling machines, and machining centers. Milling machines can perform a variety of machining tasks, primarily face milling, peripheral milling, slot milling, drilling and tapping, profile milling, and high-speed milling.

[0006] Currently, milling devices mainly use a tool rotation and workpiece movement mode for machining, and depending on the required machining accuracy, they are machined on different conventional milling machines (roughing) and CNC milling machines (finishing).

[0007] This invention utilizes an integrated mechanical mechanism combination to simultaneously complete the rotation and feed reciprocating motion of parts, and designs a device with adjustable reciprocating stroke, which can complete manual or automated processing on this milling equipment, and saves a lot of costs compared with CNC milling machines. Summary of the Invention

[0008] This invention addresses the technical problems existing in the prior art by designing a milling machine for machining parts, comprising a milling cutter, a clamping device, a rotating device, and a linear reciprocating motion device. The clamping device clamps the part, the rotating device drives the part to rotate, the linear reciprocating motion device drives the part to move linearly back and forth, and the milling cutter machine the surface of the part. The clamping device includes a wedge, a thrust column, a lever, a first spring, a connecting block, and a boss. The part is disc-shaped with a cavity at its bottom. The bottom surface of the thrust column is inclined and is located on the inclined surface of the wedge. A connecting block is located on the top surface of the thrust column, and arc grooves are formed on both sides of the connecting block. The lever is horizontally arranged, with one end of the lever being spherical and located in the arc groove, and the other end of the lever abutting against the side of the disc cavity. A first spring is located between the top surface of the connecting block and the bottom surface of the boss, and the top surface of the boss abuts against the top surface of the part cavity. The milling cutter, clamping device, rotating device, and linear reciprocating motion device are all mounted on the base.

[0009] Furthermore, the rotating device includes a rotating shaft, a worm gear, a worm, and a first motor; the output end of the first motor is coaxially connected to the worm; when the first motor is started, the worm drives the worm gear to rotate; the rotating shaft is installed at the center of the worm gear; and the clamping device is provided at the end of the rotating shaft away from the worm gear.

[0010] Furthermore, the linear reciprocating motion device includes a second motor, a first gear, a second gear, a cam, an eccentric block, an eccentric shaft, a sliding shaft, and a base plate; the worm gear is mounted on the base plate; the first gear is mounted above the second gear and meshes with the second gear; the output shaft of the second gear is connected to the eccentric block; the eccentric shaft output by the eccentric block is connected to the cam; the outer side of the cam contacts one end of the sliding shaft; the other end of the sliding shaft is connected to the base plate; the first gear rotates under the drive of the second motor, the first gear drives the second gear, the output end of the second gear drives the eccentric block, the eccentric shaft of the eccentric block drives the cam to rotate, the cam drives the sliding shaft, and the sliding shaft drives the base plate to perform reciprocating motion in the horizontal direction.

[0011] Furthermore, a second spring is provided between the other end of the slide shaft and the substrate.

[0012] Furthermore, an adjustment assembly for adjusting the reciprocating stroke is provided between the eccentric shaft and the cam. The adjustment assembly includes an adjustment block, a lead screw, and a fixed seat. The adjustment block is a parallelogram prism with its oblique portion embedded in the hole in the cam. The lead screw is connected to the adjustment block through the fixed seat. When the lead screw is rotated, the top of the lead screw pushes the fixed seat and the adjustment block, and the adjustment block moves back and forth along the axial direction of the hole in the cam. After being adjusted to a predetermined position, it is locked.

[0013] Furthermore, a sliding tube is also fitted onto the outer side of the sliding shaft.

[0014] Furthermore, there are at least two connecting blocks, which are evenly distributed on the circumference of the arc groove.

[0015] Furthermore, a guide rail is mounted on the bottom of the substrate, allowing the substrate to move along the length of the guide rail.

[0016] Furthermore, the clamping device is also provided with a horizontally arranged bolt and nut on one side of the wedge. The bolt and nut are threaded together. When the bolt is rotated, it unscrews from the nut, and one end of the bolt pushes the wedge to move horizontally.

[0017] Furthermore, a third motor is provided, the output end of which is coaxially connected to the worm gear, and the third motor drives the worm gear to rotate.

[0018] The main advantages of this invention are: by using an integrated mechanical mechanism combination, the rotation and feed reciprocating motion of the part can be completed simultaneously, and a device with adjustable reciprocating stroke is designed, which can complete manual or automated processing on this milling equipment, and saves a lot of costs compared with CNC milling machines. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram from a first perspective in one embodiment of the present invention; Figure 2 This is a front view of the clamping device in its original state according to an embodiment of the present invention; Figure 3 This is a front view of the clamping device in a clamping state according to another embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the clamping device in one embodiment of the present invention; Figure 5 This is a schematic diagram of the installation structure of the clamping device in one embodiment of the present invention; Figure 6 This is a schematic diagram of the installation structure of the rotating device in one embodiment of the present invention; Figure 7 This is a schematic diagram of the installation structure of the linear reciprocating motion device in one embodiment of the present invention; Figure 8 This is a partial installation structure diagram of the linear reciprocating motion device in one embodiment of the present invention; Figure 9 This is a schematic diagram of the installation of an adjusting block in a linear reciprocating motion device according to an embodiment of the present invention; Figure 10 This is a top view of one embodiment of the present invention; Figure 11 for Figure 10 A schematic diagram of the BB direction; Figure 12 for Figure 10 A schematic diagram of the EE direction; Figure 13 This is a side view of a linear reciprocating motion device according to an embodiment of the present invention; Figure 14 This is a partial installation diagram of the rotating device in one embodiment of the present invention; Figure 15 This is a schematic diagram of the installation of the sliding shaft, sliding tube and base plate in one embodiment of the present invention; Figure 16 for Figure 15 A magnified view of a section along the I direction. Detailed Implementation

[0020] The following will further explain and illustrate the method for co-optimizing milling tool diameter and path according to the present invention with reference to the accompanying drawings and specific embodiments. However, this explanation and illustration do not constitute an undue limitation on the technical solution of the present invention.

[0021] refer to Figure 1 and combined Figures 2-16 In one embodiment of the present invention, a milling machine for machining parts includes a milling cutter 1, a clamping device 2, a rotating device 3, and a linear reciprocating motion device 4. The clamping device 2 clamps a part 5, the rotating device 3 drives the part 5 to rotate, and the linear reciprocating motion device 4 drives the part 5 to move linearly back and forth. The milling cutter 1 machines the surface of the part 5. The clamping device 2 includes a wedge 21, a thrust column 22, a lever 23, a first spring 24, a connecting block 25, and a boss 26. The part 5 is disc-shaped with a cavity at its bottom. The bottom surface of the thrust column 22 is inclined and is located on the inclined surface of the wedge 21. The top surface of the thrust column 22 is provided with a connecting block 25. Arc grooves 251 are opened on both sides of the connecting block 25. The lever 23 is horizontally arranged. One end of the lever 23 is spherical and located in the arc groove 251. The other end of the lever 23 abuts against the side of the cavity inside the part. The first spring 24 is provided between the top surface of the connecting block 25 and the bottom surface of the boss 26. The top surface of the boss 26 abuts against the top surface of the cavity inside the part. The milling cutter 1, clamping device 2, rotating device 3, and linear reciprocating motion device 4 are all mounted on the base 6.

[0022] As an optimized solution, the rotating device 3 includes a rotating shaft 31, a worm gear 32, a worm 33, and a first motor 34; the output end of the first motor 34 is coaxially connected to the worm 33 to drive the first motor 34, the worm 33 drives the worm gear 32 to rotate, the rotating shaft 31 is installed at the center of the worm gear 32, and the clamping device 2 is provided at the end of the rotating shaft 31 away from the worm gear 3.

[0023] As an optimizable solution, the linear reciprocating motion device 4 includes a second motor (not labeled), a first gear 41, a second gear 42, a cam 43, an eccentric block 44, an eccentric shaft 45, a sliding shaft 46, and a base plate 47; a worm gear 32 is mounted on the base plate 47; the first gear 41 is mounted above the second gear 42 and meshes with the second gear 42; the output shaft of the second gear 42 is connected to the eccentric block 44; the eccentric shaft 45 output from the eccentric block 44 is connected to the cam 43; the outer side of the cam 43 contacts one end of the sliding shaft 46; the other end of the sliding shaft 46 is connected to the base plate 47; the first gear 41 rotates under the drive of the second motor, the first gear 41 drives the second gear 42, the output end of the second gear 42 drives the eccentric block 44, the eccentric shaft 45 of the eccentric block 44 drives the cam 43 to rotate, the cam 43 drives the sliding shaft 46, and the sliding shaft 46 drives the base plate 47 to perform reciprocating motion in the horizontal direction.

[0024] As an optimization option, a second spring 48 is also provided between the other end of the slide shaft 46 and the substrate 47.

[0025] As an optimized solution, an adjustment component 48 for adjusting the reciprocating motion stroke is provided between the eccentric shaft 45 and the cam 43. The adjustment component 48 includes an adjustment block 481, a lead screw 482, and a fixed seat 483. The adjustment block 481 is a parallelogram prism with its oblique portion embedded in the hole opened in the cam. The lead screw 482 is connected to the adjustment block 481 through the fixed seat 483. When the lead screw 482 is rotated, the top of the lead screw 482 pushes the fixed seat 483 and the adjustment block 481. The adjustment block 481 moves back and forth along the axial direction of the hole 431 opened in the cam and is locked after being adjusted to a predetermined position.

[0026] As an optimization option, a slide tube 49 is also fitted on the outer side of part of the slide shaft 46.

[0027] As an optimizable option, there are at least two connecting blocks 25, which are evenly distributed on the circumference of the arc groove 251.

[0028] As an optimized solution, a guide rail 7 is mounted on the bottom of the substrate 47, and the substrate 47 can move along the length of the guide rail 7.

[0029] As an optimized solution, the clamping device 2 is also provided with a horizontally arranged bolt 27 and nut 28 on one side of the wedge 21. The bolt 27 and nut 28 are threadedly connected. When the bolt 27 is rotated, the bolt 27 is unscrewed from the nut 28, and one end of the bolt 27 pushes the wedge 21 to move horizontally.

[0030] As an optimization option, a third motor (not labeled) is also provided. The output end of the third motor is coaxially connected to the worm gear 33, and the third motor drives the worm gear 33 to rotate.

[0031] The working principle of this invention is as follows: Step 1: Part clamping: Rotate the bolt. After the bolt unscrews the nut, one end of the bolt pushes the wedge horizontally. The inclined surface of the wedge pushes the thrust column upward. The thrust column passes through the connecting block and overcomes the elastic force of the first spring, pushing the boss up to abut against the top surface of the cavity of the disc-shaped part. The lever is a two-section bent lever; one end is spherically abutted in the arc-shaped groove on the side of the connecting block, and the other end abuts against the side of the cavity of the disc-shaped part. The disc-shaped part is fixed due to the clamping force on both sides.

[0032] The second step is to adjust the reciprocating motion of the parts: Adjust the rotating screw to push the fixed seat, which is connected to the adjusting block, thereby pushing the adjusting block into and out of the cam hole. The adjusting block has corresponding scales, which show the value of the stroke. After adjusting to the predetermined stroke, lock the screw.

[0033] The third step is the movement of the parts: the first motor is turned on, and the corresponding speed can be set for the first motor, and the parts begin to rotate; the second motor is turned on, and the parts begin to reciprocate.

[0034] The fourth step involves the operation of the milling cutter device, which moves the milling cutter downwards from above the part to machine its surface.

[0035] It should be noted that the prior art portion of the protection scope of this invention is not limited to the embodiments given in this application. All prior art that does not contradict the solution of this invention, including but not limited to prior patent documents, prior publications, prior public uses, etc., can be included in the protection scope of this invention.

[0036] Furthermore, the combination of the technical features in this case is not limited to the combination methods described in the claims of this case or the combination methods described in the specific embodiments. All technical features described in this case can be freely combined or combined in any way, unless they contradict each other.

[0037] It should also be noted that the embodiments listed above are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made thereto are those that can be directly derived or easily conceived by those skilled in the art from the content disclosed in the present invention, and should all fall within the protection scope of the present invention.

Claims

1. A milling apparatus for machining a part, comprising a milling cutter, a clamping device, a rotating device and a linear reciprocating device, characterized in that: The clamping device clamps the part, the rotating device drives the part to rotate, the linear reciprocating motion device drives the part to move linearly back and forth, and the milling cutter processes the surface of the part; among these, The clamping device includes a wedge, a thrust column, a lever, a first spring, a connecting block, and a boss. The part is disc-shaped with a cavity at its bottom. The bottom surface of the thrust column is inclined and is located on the inclined surface of the wedge. A connecting block is located on the top surface of the thrust column, and arc grooves are formed on both sides of the connecting block. The lever is horizontally arranged, with one end of the lever being spherical and located in the arc groove. The other end of the lever abuts against the side of the cavity inside the part. A first spring is located between the top surface of the connecting block and the bottom surface of the boss, and the top surface of the boss abuts against the top surface of the cavity inside the part. The milling cutter, clamping device, rotating device, and linear reciprocating motion device are all mounted on the base.

2. The milling equipment for machining parts according to claim 1, characterized in that: The rotating device includes a rotating shaft, a worm gear, a worm, and a first motor; the output end of the first motor is coaxially connected to the worm; when the first motor is started, the worm drives the worm gear to rotate; the rotating shaft is installed at the center of the worm gear; and the clamping device is provided at the end of the rotating shaft away from the worm gear.

3. The milling equipment for machining parts according to claim 1, characterized in that: The linear reciprocating motion device includes a second motor, a first gear, a second gear, a cam, an eccentric block, an eccentric shaft, a sliding shaft, and a base plate. The worm gear is mounted on the base plate. The first gear is mounted above the second gear and meshes with it. The output shaft of the second gear is connected to the eccentric block. The eccentric shaft output by the eccentric block is connected to the cam. The outer side of the cam contacts one end of the sliding shaft, and the other end of the sliding shaft is connected to the base plate. The first gear rotates under the drive of the second motor, drives the second gear, the output end of the second gear drives the eccentric block, the eccentric shaft of the eccentric block drives the cam to rotate, the cam drives the sliding shaft, and the sliding shaft drives the base plate to perform reciprocating motion in the horizontal direction.

4. The milling equipment for machining parts according to claim 3, characterized in that: A second spring is also provided between the other end of the slide shaft and the base plate.

5. The parts processing equipment according to claim 3, characterized in that: An adjustment assembly for adjusting the reciprocating stroke is provided between the eccentric shaft and the cam. The adjustment assembly includes an adjustment block, a lead screw, and a fixed seat. The adjustment block is a parallelogram prism with its oblique portion embedded in the hole in the cam. The lead screw is connected to the adjustment block through the fixed seat. When the lead screw is rotated, the top of the lead screw pushes the fixed seat and the adjustment block, and the adjustment block moves back and forth along the axial direction of the hole in the cam. After being adjusted to a predetermined position, it is locked.

6. The parts processing equipment according to claim 3, characterized in that: A slide tube is also fitted on the outer side of the slide shaft.

7. The milling equipment for machining parts according to claim 1, characterized in that: There are at least two connecting blocks, which are evenly distributed on the circumference of the arc groove.

8. The milling equipment for machining parts according to claim 7, characterized in that: The substrate is mounted on a guide rail at its bottom, and the substrate can move along the length of the guide rail.

9. The milling equipment for machining parts according to claim 1, characterized in that: The clamping device is also provided with a horizontally arranged bolt and nut on one side of the wedge. The bolt and nut are threaded together. When the bolt is rotated, it unscrews from the nut, and one end of the bolt pushes the wedge to move horizontally.

10. The parts processing equipment according to claim 2, characterized in that: A third motor is also provided, and the output end of the third motor is coaxially connected to the worm gear, and the third motor drives the worm gear to rotate.

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