A metal piece precision milling tooling

Abstract

The utility model relates to milling equipment technical field discloses a kind of metal piece precision milling tool, including machine case, the lower end of the inside of machine case is provided with displacement mechanism, the displacement mechanism includes the first displacement motor of machine case front end outer wall fixed connection, the output of first displacement motor is penetrated to the inside of machine case and is fixedly connected with longitudinal screw rod, the rod body of longitudinal screw rod is threadedly connected with longitudinal nut, the upper surface of longitudinal nut is fixedly connected with longitudinal movable plate, the upper end of longitudinal movable plate is provided with transverse movable plate.In the utility model, by setting lifting mechanism and displacement mechanism, by longitudinal and transverse double screw rod transmission structure, by first displacement motor and second displacement motor respectively drive, cooperate the guiding effect of longitudinal guide rod and transverse guide rod, ensure that workpiece moves accurately in horizontal plane, simultaneously, by rotating motor drive bevel gear set drive placing disc rotation, so that workpiece can be angle adjusted.

Description

Technical Field

[0001] This utility model relates to the field of milling equipment technology, and in particular to a precision milling fixture for metal parts. Background Technology

[0002] Precision milling fixtures for metal parts are mainly used in the field of sheet metal processing, especially in the production of workpieces with high precision requirements. They are widely used in industries such as aerospace, automotive, electronics, and mold making. In these fields, precision milling fixtures can help improve the processing efficiency of sheet metal parts, ensure processing quality, and reduce production costs.

[0003] Existing metal milling equipment typically lacks multi-degree-of-freedom coordinated adjustment capabilities. Workpiece positioning relies on simple unidirectional moving platforms or manual adjustments, making it difficult to achieve high-precision synchronous control of transverse, longitudinal, and rotational movements. This necessitates multiple clamping or tooling changes when machining complex workpieces, resulting in low efficiency and the introduction of cumulative errors that negatively impact machining quality.

[0004] Therefore, those skilled in the art have provided a precision milling fixture for metal parts to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a precision milling fixture for metal parts. It adopts a longitudinal and transverse double lead screw transmission structure, driven by a first shift motor and a second shift motor respectively. With the guidance of the longitudinal guide rod and the transverse guide rod, it ensures that the workpiece moves accurately in the horizontal plane.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A precision milling fixture for metal parts includes a chassis. A shifting mechanism is located at the lower end of the chassis. The shifting mechanism includes a first shifting motor fixedly connected to the outer wall of the front end of the chassis. The output end of the first shifting motor extends into the interior of the chassis and is fixedly connected to a longitudinal lead screw. A longitudinal nut is threaded onto the body of the longitudinal lead screw. A longitudinal movable plate is fixedly connected to the upper surface of the longitudinal nut. A transverse movable plate is located at the upper end of the longitudinal movable plate. A second shifting motor is fixedly connected to one side of the lower surface of the transverse movable plate. The output end of the machine is fixedly connected to a transverse lead screw, and the body of the transverse lead screw is threaded with a transverse nut. Side plates are fixedly connected to both sides of the upper surface of the transverse movable plate. A rotary motor is fixedly connected to the lower end of the inner wall of one side of the side plate. The output end of the rotary motor is fixedly connected to a driving bevel gear. A limit plate is fixedly connected to the middle of the inner wall of the side plates that are close to each other. A driven bevel gear is rotatably connected to the body of the limit plate. The upper end of the driven bevel gear passes through the limit plate and is fixedly connected to a placement plate. A lifting mechanism is provided at the rear end inside the machine housing.

[0008] Through the above technical solution, this precision milling fixture for metal parts achieves multi-degree-of-freedom precision positioning of the workpiece during the machining process through an integrated shifting mechanism and rotation adjustment design.

[0009] Furthermore, the lifting mechanism includes a lifting motor fixedly connected to the upper surface of the chassis, the output end of the lifting motor passing through the chassis and fixedly connected to a lifting screw, the lifting screw being threadedly connected to a lifting nut, a lifting plate being fixedly connected to the outer wall of the front end of the lifting nut, a mounting base being fixedly connected to the outer wall of the front end of the lifting plate, a drive motor being fixedly connected to the inner wall of the mounting base, and a milling cutter being fixedly connected to the output end of the drive motor;

[0010] Through the above technical solution, the lifting mechanism provides precise power through screw drive and ensures smooth guidance through the combination of double guide rod structure, which can effectively meet the three core requirements of improving accuracy, rigidity and reliability.

[0011] Furthermore, two fixed seats are fixedly connected to both sides of the inner wall of the rear end of the chassis. Lifting guide rods are fixedly connected to the outer walls of the sides of the fixed seats that are close to each other. Two lifting guide blocks are slidably connected to the body of each lifting guide rod. The front outer walls of each lifting guide block are fixedly connected to the lifting plate.

[0012] Through the above technical solution, when the lifting mechanism is raised and lowered, the lifting guide rods and lifting guide blocks equipped on both sides form a robust guiding system, which effectively prevents the lifting plate from shaking or deflecting during the movement, ensuring the extreme stability of the tool during the processing, thereby improving the quality of the processed surface.

[0013] Furthermore, longitudinal guide rods are fixedly connected to both sides of the bottom surface of the chassis, and each longitudinal guide rod has two sliding longitudinal guide blocks. The upper surface of each longitudinal guide block is fixedly connected to a longitudinal movable plate.

[0014] The above technical solution, through the setting of longitudinal guide rods, can effectively limit the movement of the longitudinal movable plate, thereby improving the stability of the longitudinal movable plate during movement.

[0015] Furthermore, the lower surface of the transverse nut is fixedly connected to the center of the upper surface of the longitudinal movable plate, and two transverse guide blocks are fixedly connected to the front and rear ends of the upper surface of the longitudinal movable plate, and transverse guide rods are fixedly connected to the front and rear ends of the lower surface of the longitudinal movable plate, and the transverse guide rods slide on the inner wall of the transverse guide blocks.

[0016] The above technical solution fixes the transverse nut, allowing the transverse movable plate to move by rotating the transverse screw. Simultaneously, the transverse guide rod and transverse guide block limit the movement of the transverse movable plate, improving its stability.

[0017] Furthermore, a support plate is fixedly connected to the outer wall of the side of the transverse movable plate away from the second shifting motor, and the end of the transverse lead screw away from the second shifting motor is rotatably connected to the support plate;

[0018] The above technical solution improves rotational stability while the transverse lead screw rotates.

[0019] Furthermore, the driving bevel gear and the driven bevel gear mesh with each other;

[0020] Through the above technical solution, the rotary motor can effectively transmit power to the placement tray, thereby causing the placement tray to rotate.

[0021] Furthermore, corrugated tarpaulins are fixedly connected to the front and rear outer walls of the longitudinal movable plate, and the ends of the corrugated tarpaulins away from the longitudinal movable plate are fixedly connected to the front and rear inner walls of the chassis, respectively.

[0022] The above technical solution effectively prevents chips from entering the shifting mechanism through the design of the corrugated tarpaulin, thereby improving the stability and service life of the equipment.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a precision milling fixture for metal parts. Through the setting of a lifting mechanism and a shifting mechanism, and through a longitudinal and transverse double lead screw transmission structure, it is driven by a first shifting motor and a second shifting motor respectively. With the guiding effect of the longitudinal guide rod and the transverse guide rod, it ensures that the workpiece moves accurately in the horizontal plane. At the same time, the rotary motor drives the bevel gear set to rotate the placement plate, so that the angle of the workpiece can be adjusted. Combined with the milling cutter controlled by the lifting mechanism, multi-dimensional milling can be performed. This integrated design significantly enhances the flexibility and accuracy of milling and is suitable for precision machining of complex contours. Attached Figure Description

[0025] Figure 1 This is an isometric drawing of a precision milling fixture for metal parts proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a precision milling fixture for metal parts proposed in this utility model;

[0027] Figure 3 This is a bottom view of a shifting mechanism in a precision milling fixture for metal parts proposed in this utility model;

[0028] Figure 4 This is an exploded view of a displacement mechanism in a precision milling fixture for metal parts proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the lifting mechanism in a precision milling fixture for metal parts proposed in this utility model.

[0030] Legend:

[0031] 1. Chassis;

[0032] 2. Lifting mechanism; 201. Lifting motor; 202. Lifting lead screw; 203. Lifting guide rod; 204. Lifting guide block; 205. Lifting plate; 206. Mounting base; 207. Drive motor; 208. Milling cutter; 209. Lifting nut; 210. Fixing base;

[0033] 3. Shifting mechanism; 301. First shifting motor; 302. Longitudinal lead screw; 303. Longitudinal nut; 304. Longitudinal guide rod; 305. Longitudinal guide block; 306. Placement tray; 307. Transverse guide rod; 308. Side plate; 309. Support plate; 310. Transverse lead screw; 311. Longitudinal movable plate; 312. Transverse guide block; 313. Transverse nut; 314. Second shifting motor; 315. Transverse movable plate; 316. Rotary motor; 317. Driven bevel gear; 318. Limiting plate; 319. Driving bevel gear;

[0034] 4. Corrugated tarpaulin. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] One specific embodiment of this utility model is provided:

[0037] Reference Figures 1-5 :

[0038] A precision milling fixture for metal parts includes a housing 1. A shifting mechanism 3 is located at the lower end of the housing 1. The shifting mechanism 3 includes a first shifting motor 301 fixedly connected to the outer wall of the front end of the housing 1. The output end of the first shifting motor 301 extends into the interior of the housing 1 and is fixedly connected to a longitudinal lead screw 302. A longitudinal nut 303 is threaded onto the body of the longitudinal lead screw 302. A longitudinal movable plate 311 is fixedly connected to the upper surface of the longitudinal nut 303. A transverse movable plate 315 is located at the upper end of the longitudinal movable plate 311. A second shifting motor 314 is fixedly connected to one side of the lower surface of the transverse movable plate 315. The output of the second shifting motor 314... A transverse lead screw 310 is fixedly connected to the end of the transverse lead screw 310. A transverse nut 313 is threadedly connected to the body of the transverse movable plate 315. Side plates 308 are fixedly connected to both sides of the upper surface of the transverse movable plate 315. A rotary motor 316 is fixedly connected to the lower end of the inner wall of one side plate 308. An active bevel gear 319 is fixedly connected to the output end of the rotary motor 316. A limit plate 318 is fixedly connected to the middle of the inner wall of the side plates 308 that are close to each other. A driven bevel gear 317 is rotatably connected to the body of the limit plate 318. The upper end of the driven bevel gear 317 passes through the limit plate 318 and is fixedly connected to a placement plate 306. A lifting mechanism 2 is provided at the rear end inside the housing 1.

[0039] This precision milling fixture for metal parts achieves multi-degree-of-freedom precision positioning of the workpiece during the machining process through an integrated shifting mechanism 3 and a rotation adjustment design.

[0040] The lifting mechanism 2 includes a lifting motor 201 fixedly connected to the upper surface of the housing 1. The output end of the lifting motor 201 passes through the housing 1 and is fixedly connected to a lifting lead screw 202. A lifting nut 209 is threaded onto the body of the lifting lead screw 202. A lifting plate 205 is fixedly connected to the outer wall of the front end of the lifting nut 209. A mounting base 206 is fixedly connected to the outer wall of the front end of the lifting plate 205. A drive motor 207 is fixedly connected to the inner wall of the mounting base 206. A milling cutter 208 is fixedly connected to the output end of the drive motor 207. This lifting mechanism 2 provides precise power through lead screw transmission, and the dual guide rod structure ensures stable guidance. It can effectively meet the three core requirements of lifting accuracy, rigidity, and reliability. Both sides of the inner wall at the rear end of the housing 1 are fixedly connected. The machine has two fixed seats 210. Lifting guide rods 203 are fixedly connected to the outer walls of the two sides of the fixed seats 210 that are close to each other. Two lifting guide blocks 204 are slidably connected to the shafts of the lifting guide rods 203. The front outer walls of the lifting guide blocks 204 are fixedly connected to the lifting plate 205. When the lifting mechanism 2 is raised or lowered, the lifting guide rods 203 and lifting guide blocks 204 on both sides form a robust guiding system, effectively preventing the lifting plate 205 from shaking or deflecting during movement, ensuring the extreme stability of the tool during machining, thereby improving the quality of the machined surface. Longitudinal guide rods 304 are fixedly connected to both sides of the bottom surface of the machine housing 1. Two longitudinal guide blocks 305 slide on the shafts of the longitudinal guide rods 304. The upper surface of the guide block 305 is fixedly connected to the longitudinal movable plate 311. The longitudinal guide rod 304 effectively limits the movement of the longitudinal movable plate 311, thereby improving its stability. The lower surface of the transverse nut 313 is fixedly connected to the center of the upper surface of the longitudinal movable plate 311. Two transverse guide blocks 312 are fixedly connected to the front and rear ends of the upper surface of the longitudinal movable plate 311. Transverse guide rods 307 are fixedly connected to the front and rear ends of the lower surface of the longitudinal movable plate 311. The transverse guide rods 307 slide on the inner wall of the transverse guide blocks 312, thereby fixing the transverse nut 313. The rotation of the transverse screw 310 then moves the transverse movable plate... The transverse movable plate 315 moves independently, and during movement, it is limited by the transverse guide rod 307 and the transverse guide block 312 to improve stability. A support plate 309 is fixedly connected to the outer wall of the transverse movable plate 315 away from the second shift motor 314. The end of the transverse lead screw 310 away from the second shift motor 314 is rotatably connected to the support plate 309, thereby improving rotational stability while the transverse lead screw 310 rotates. The driving bevel gear 319 and the driven bevel gear 317 mesh with each other, so that the rotary motor 316 can effectively transmit power to the placement tray 306, thereby causing the placement tray 306 to rotate. Corrugated tarpaulin 4 is fixedly connected to the front and rear outer walls of the longitudinal movable plate 311.The ends of the corrugated tarpaulin 4 furthest from the longitudinal movable plate 311 are fixedly connected to the front and rear inner walls of the chassis 1, respectively. The design of the corrugated tarpaulin 4 effectively prevents chips from entering the shifting mechanism 3, thus improving the stability and service life of the equipment.

[0041] Working Principle: In use, the metal plate is mounted on the placement tray 306 by rotating a suitable mechanical clamping mechanism. The mechanical clamping mechanism then fixes the metal plate. The lifting mechanism 2, driven by the lifting motor 201, rotates the lifting screw 202, causing the lifting nut 209 to move. This movement, in turn, moves the lifting plate 205, which in turn moves the mounting base 206, causing the drive motor 207 to move. The drive motor 207 is then activated, causing the milling cutter 208 to rotate at high speed. This, combined with the lifting mechanism 2, allows for milling of the metal plate as needed. Simultaneously, the first shifting motor 301 can be activated, causing the longitudinal screw 302 to rotate, thereby moving the longitudinal screw... The rotation of the lead screw 302 causes the longitudinal nut 303 to move, which in turn moves the longitudinal movable plate 311, thereby driving the placement plate 306 to move longitudinally. At the same time, the second shift motor 314 can be started to drive the transverse lead screw 310 to rotate, which in turn moves the transverse nut 313, which in turn moves the transverse movable plate 315, thereby driving the placement plate 306 to move laterally. Simultaneously, the rotary motor 316 can be started to drive the drive bevel gear 319 to rotate, which in turn meshes with the driven bevel gear 317 to rotate the placement plate 306, thus cooperating with the lifting mechanism 2 to perform precision milling on the metal plate.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features thereof can be combined with each other to obtain new embodiments.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision milling fixture for metal parts, comprising a housing (1), characterized in that: A shifting mechanism (3) is provided at the lower end of the interior of the chassis (1). The shifting mechanism (3) includes a first shifting motor (301) fixedly connected to the outer wall of the front end of the chassis (1). The output end of the first shifting motor (301) extends into the interior of the chassis (1) and is fixedly connected to a longitudinal lead screw (302). A longitudinal nut (303) is threaded onto the body of the longitudinal lead screw (302). A longitudinal movable plate (311) is fixedly connected to the upper surface of the longitudinal nut (303). A transverse movable plate (315) is provided at the upper end of the longitudinal movable plate (311). A second shifting motor (314) is fixedly connected to one side of the lower surface of the transverse movable plate (315). A transverse lead screw is fixedly connected to the output end of the second shifting motor (314). (310), the transverse lead screw (310) is threaded with a transverse nut (313), and the upper surface of the transverse movable plate (315) is fixedly connected to both sides of the side plate (308). A rotary motor (316) is fixedly connected to the lower end of the inner wall of one side of the side plate (308). The output end of the rotary motor (316) is fixedly connected to a drive bevel gear (319). A limit plate (318) is fixedly connected to the middle of the inner wall of the side plates (308) that are close to each other. A driven bevel gear (317) is rotatably connected to the plate body of the limit plate (318). The upper end of the driven bevel gear (317) passes through the limit plate (318) and is fixedly connected to a placement plate (306). A lifting mechanism (2) is provided at the rear end of the machine box (1).

2. The precision milling fixture for metal parts according to claim 1, characterized in that: The lifting mechanism (2) includes a lifting motor (201) fixedly connected to the upper surface of the housing (1). The output end of the lifting motor (201) passes through the housing (1) and is fixedly connected to a lifting screw (202). The lifting screw (202) is threadedly connected to a lifting nut (209). The outer wall of the front end of the lifting nut (209) is fixedly connected to a lifting plate (205). The outer wall of the front end of the lifting plate (205) is fixedly connected to a mounting base (206). The inner wall of the mounting base (206) is fixedly connected to a drive motor (207). The output end of the drive motor (207) is fixedly connected to a milling cutter (208).

3. The precision milling fixture for metal parts according to claim 2, characterized in that: Two fixed seats (210) are fixedly connected to both sides of the inner wall of the rear end of the chassis (1). Lifting guide rods (203) are fixedly connected to the outer walls of the two fixed seats (210) that are close to each other. Two lifting guide blocks (204) are slidably connected to the body of the lifting guide rods (203). The outer walls of the front ends of the lifting guide blocks (204) are fixedly connected to the lifting plate (205).

4. The precision milling fixture for metal parts according to claim 1, characterized in that: Both sides of the bottom surface of the chassis (1) are fixedly connected with longitudinal guide rods (304). Each longitudinal guide rod (304) has two sliding longitudinal guide blocks (305). The upper surface of each longitudinal guide block (305) is fixedly connected to the longitudinal movable plate (311).

5. The precision milling fixture for metal parts according to claim 1, characterized in that: The lower surface of the transverse nut (313) is fixedly connected to the center of the upper surface of the longitudinal movable plate (311). Two transverse guide blocks (312) are fixedly connected to the front and rear ends of the upper surface of the longitudinal movable plate (311). Transverse guide rods (307) are fixedly connected to the front and rear ends of the lower surface of the longitudinal movable plate (311). The transverse guide rods (307) slide on the inner wall of the transverse guide blocks (312).

6. The precision milling fixture for metal parts according to claim 1, characterized in that: A support plate (309) is fixedly connected to the outer wall of the side of the transverse movable plate (315) away from the second shift motor (314), and the end of the transverse lead screw (310) away from the second shift motor (314) is rotatably connected to the support plate (309).

7. A precision milling fixture for metal parts according to claim 1, characterized in that: The driving bevel gear (319) meshes with the driven bevel gear (317).

8. A precision milling fixture for metal parts according to claim 1, characterized in that: The front and rear outer walls of the longitudinal movable plate (311) are fixedly connected with corrugated tarpaulin (4), and the end of the corrugated tarpaulin (4) away from the longitudinal movable plate (311) is fixedly connected to the front and rear inner walls of the chassis (1) respectively.

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