Plane chipless milling machine tool

Abstract

The utility model relates to a plane chipless milling machine tool which comprises a machine tool body and a vacuum system arranged on the side edge of the machine tool body, an air suction opening of the vacuum system is correspondingly formed in the milling position of the machine tool body, a milling station is arranged on the machine tool body, and milling cutter devices which are independent of each other are arranged on the two sides of the milling station respectively. Each set of milling cutter device comprises a three-way slide rail which is arranged on the machine tool body, is used for milling a processing pipe and is driven by the three-way slide rail; during milling, a port of the milling pipe is attached to the surface of a workpiece to be machined, the tool bit is movably arranged in the milling pipe in a telescopic mode, and the vacuum pipe is led out of a vacuum system and communicated with the milling pipe. The dust suction pipe is arranged at the position of the milling cutter, and milling chips generated by milling are sucked away by the dust suction pipe in time; the flexible ring can be tightly attached to the circumference of the to-be-milled position of the workpiece, milling chips are prevented from falling off, and the cleanliness of the milling environment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part milling, in particular to a plane chipless milling machine tool. Background Art

[0002] Milling, as a common hole processing method, is widely used in various machine tools, including manual milling, machining centers, etc.

[0003] During the milling process, metal shavings are inevitably generated. Currently, most equipment, whether manually operated milling machines or machining centers, lacks specialized chip handling. These chips are typically accumulated and collected in a centralized location. Even where temporary storage for these chips is provided, it is often located below the machining area, where they fall and are collected under their own weight. This practice, particularly with milling cutters facing upward, can lead to chips easily clinging to the cutter, disrupting proper machining. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a plane chipless milling machine with a reasonable structure, which can quickly absorb milling chips and discharge them in time during the milling process, reducing the impact of milling chips on the cutter head.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A plane chipless milling machine tool comprises a machine tool body and a vacuum system arranged on the side of the machine tool body. The air suction port of the vacuum system is arranged corresponding to the milling position of the machine tool body.

[0007] The machine tool body is provided with a milling station, and independent milling cutter devices are respectively provided on both sides of the milling station, and each set of milling cutter devices includes:

[0008] Three-way slide rail, installed on the machine tool body,

[0009] The milling tube is driven by a three-way slide rail. During milling, the end of the milling tube is attached to the surface of the workpiece.

[0010] The cutter head is movable and retractable in the milling tube.

[0011] The vacuum tube is led out from the vacuum system and connected to the milling tube.

[0012] As a further improvement of the above technical solution:

[0013] The three-way slide rails are symmetrically arranged on both sides of the milling station.

[0014] The end of the milling tube is provided with a flexible ring with elastic reset capability.

[0015] During the milling process, the flexible ring adheres to the surface of the workpiece to be machined, forming a closed milling space around the cutter head.

[0016] The milling tube is equipped with an active feed component that pushes the cutter head to move and retract. The active feed component directly pushes the cutter head to extend.

[0017] Alternatively, a driven feed assembly is formed on the outer wall of the milling tube, and the driven feed assembly compresses the tube wall to extend the cutter head.

[0018] Active feed components include:

[0019] The feed motor, as the power source, is installed on the three-way slide rail.

[0020] The threaded shaft is connected to the output shaft of the feed motor.

[0021] The threaded sleeve is sleeved with the threaded shaft and is pushed by the threaded shaft; the cutter head is connected to the bottom of the threaded sleeve.

[0022] The bottom end circumference of the threaded shaft and the top end portion of the threaded sleeve are provided with locking flanges.

[0023] The driven feed assembly comprises a movable tube sleeved on the milling tube, and the movable tube and the milling tube are connected via an axially arranged elastic member.

[0024] Each set of milling cutter devices includes a forward milling cutter and a reverse milling cutter, which are respectively located on the upper and lower sides of the workpiece to be processed.

[0025] The forward milling cutter and reverse milling cutter are set independently of each other.

[0026] The beneficial effects of the utility model are as follows:

[0027] Compared to conventional milling lathes, this new machine is particularly well-suited for workpieces requiring flat drilling, such as battery trays. Because the workpieces require a limited z-stroke, this new machine eliminates the need for a gantry frame, reducing the overall machine height and overall cost. This results in a lower overall machine height, less resonance during operation, and greater milling cutter stability.

[0028] In the utility model, a dust suction pipe is provided at the milling cutter, which wraps the milling cutter during the milling process, and the milling chips generated by milling are sucked away in time by the dust suction pipe; and the mouth of the dust suction pipe is a flexible ring, which can fit tightly to the circumference of the position to be milled of the workpiece, preventing milling chips from falling and preventing external impurities from contaminating the milling hole, thereby further ensuring the cleanliness of the milling environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0030] Figure 2This is a schematic structural diagram of the utility model with a milling cutter device on one side.

[0031] Figure 3 This is a schematic structural diagram of a group of milling cutter devices of the present utility model.

[0032] Figure 4 It is a schematic diagram of the structure of a forward milling cutter and a reverse milling cutter in one embodiment.

[0033] Figure 5 This is a schematic structural diagram of a set of milling cutter devices for milling tubes in the utility model.

[0034] Figure 6 for Figure 5 Cross-sectional view of the active feed structure.

[0035] Figure 7 for Figure 6 Schematic diagram of the mid-slip connection structure.

[0036] Figure 8 It is a side view of the serrated surface structure of the two locking flanges.

[0037] Figure 9 for Figure 5 Schematic cross-sectional view of the driven feed structure.

[0038] Among them: 1. Machine tool body; 2. Vacuum system; 3. Milling cutter device; 4. Active feed assembly; 5. Driven feed assembly;

[0039] 301, three-way slide rail; 302, milling tube; 303, cutter head; 304, vacuum tube; 305, flexible ring;

[0040] 401, feed motor; 402, threaded shaft; 403, threaded sleeve; 404, locking flange; 405, sliding groove; 406, rotating groove; 407, ball bearing;

[0041] 501. Movable tube; 502. Elastic part. DETAILED DESCRIPTION

[0042] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0043] like Figures 1-9 As shown, the plane chipless milling machine tool of this embodiment includes a machine tool body 1, a vacuum system 2 configured on the side of the machine tool body 1, and an air suction port of the vacuum system 2 is correspondingly arranged at the milling position of the machine tool body 1.

[0044] A milling station is provided on the machine tool body 1. Independent milling cutter devices 3 are provided on both sides of the milling station. Each set of milling cutter devices 3 includes:

[0045] The three-way slide rail 301 is installed on the machine tool body 1.

[0046] The milling tube 302 is driven by the three-way slide rail 301; during milling, the end of the milling tube 302 is attached to the surface of the workpiece to be processed.

[0047] The cutter head 303 is movably and telescopically arranged in the milling tube 302.

[0048] The vacuum tube 304 is led out from the vacuum system 2 and communicates with the milling tube 302 .

[0049] The three-way slide rails 301 are symmetrically arranged on both sides of the milling station.

[0050] The end of the milling tube 302 is provided with a flexible ring 305 with elastic reset capability.

[0051] During the milling process, the flexible ring 305 is attached to the surface of the workpiece to be machined, forming a closed milling space around the cutter head 303 .

[0052] The milling tube 302 is equipped with an active feed assembly 4 that pushes the cutter head 303 to move and retract. The active feed assembly 4 directly pushes the cutter head 303 to extend.

[0053] Alternatively, the driven feed assembly 5 is formed on the outer wall of the milling tube 302 , and the driven feed assembly 5 compresses the tube wall to extend the cutter head 303 .

[0054] The active feed component 4 includes:

[0055] The feed motor 401, as a power source, is installed on the three-way slide rail 301.

[0056] The threaded shaft 402 is connected to the output shaft of the feed motor 401.

[0057] The threaded sleeve 403 is sleeved with the threaded shaft 402 and is pushed by the threaded shaft 402 ; the cutter head 303 is connected to the bottom of the threaded sleeve 403 .

[0058] A locking flange 404 is provided on the bottom circumference of the threaded shaft 402 and the top end of the threaded sleeve 403 .

[0059] The driven feed assembly 5 includes a movable tube 501 sleeved on the milling tube 302 , and the movable tube 501 and the milling tube 302 are connected via an axially arranged elastic member 502 .

[0060] Each set of milling cutter devices 3 includes a forward milling cutter and a reverse milling cutter, and the forward milling cutter and the reverse milling cutter are respectively located on the upper and lower sides of the workpiece to be processed.

[0061] The forward milling cutter and reverse milling cutter are set independently of each other.

[0062] The specific structure and working principle of the utility model are as follows:

[0063] The purpose of the utility model is to provide a processing machine tool that does not drop milling chips when milling holes of medium and large-sized flat products such as battery trays, especially for the situation where the milling cutter feeds from top to bottom.

[0064] like Figure 1 The figure shows a schematic diagram of the entire machine. In addition to the existing feed rails and milling stations of conventional machine tools, the present invention adds two sets of three-way slide rails 301 on either side of the milling station. A milling cutter assembly 3 is slidably connected to each set of three-way slide rails 301. With the feed direction being the x-direction, the three-way slide rails 301 can reciprocate in the x-, y-, and z-directions. The three-way slide rails 301 can utilize existing technology and are not described in detail in this embodiment.

[0065] In order to perform efficient milling of the workpiece, as an optional implementation method, refer to Figure 4 Each side of the milling station can be equipped with two sets of three-way tracks located in the same vertical plane. Each set of three-way tracks in the same vertical plane is equipped with a set of independently operating milling cutter devices 3. For ease of distinction, the milling cutter device 3 that feeds from top to bottom can be called a forward milling cutter, while the milling cutter device 3 that feeds from bottom to top can be called a reverse milling cutter. Both the forward and reverse milling cutters can be equipped with a milling processing tube 302 and a vacuum tube 304 to achieve chipless milling.

[0066] Take one set of milling cutter devices 3 as an example for explanation. Figure 2 As shown, the vacuum tube 304 led out from the vacuum system 2 is connected to the milling cutter device 3 to suck away the milling chips in the milling process in time.

[0067] Combined with reference Figure 3 、 Figure 5 The milling cutter device 3 is installed on the three-way slide rail 301. The power source of the milling cutter device 3 is the feed motor 401. The end face of the output shaft of the feed motor 401 is connected to the milling processing tube 302, and the side wall of the milling processing tube 302 is connected to the vacuum tube 304.

[0068] A flexible ring 305 is provided at the mouth of the milling processing tube 302, which can be made of nylon, rubber, silicone and other materials. During the processing, the flexible ring 305 contacts the surface of the workpiece to be processed, forming a temporary closed milling environment in the milling processing tube 302. When the cutter head 303 is milling a hole, the milling chips generated are sucked away by the vacuum tube 304 in the first time.

[0069] The present invention proposes two optional active feed structures and driven feed structures to ensure that the flexible ring 305 is closely attached to the workpiece and the milling cutter continues milling during the milling process.

[0070] like Figure 6-Figure 8The figure shows a cross-sectional view of the active feed assembly 4 of the present invention. During the feed process, the feed motor 401 drives the threaded shaft 402 to rotate, and the threaded sleeve 403 is slidably connected to the inner wall of the milling tube 302, converting the rotation of the threaded shaft 402 into up and down motion. After the threaded sleeve 403 extends out of the inner wall of the milling tube 302 and moves to the extreme position, the threaded sleeve 403 and the threaded shaft 402 are no longer threadedly connected, but are locked by the locking flange 404. The threaded sleeve 403 can be driven to continue rotating, that is, the cutter head 303 can be driven to rotate at high speed to achieve milling.

[0071] In order to meet the movement of the threaded sleeve 403, an axially arranged sliding groove 405 is formed on the inner wall of the milling tube 302, and a rotating groove 406 is formed on the inner wall of the milling tube 302 near the mouth. The rotating groove 406 is connected to the sliding groove 405. A sliding block is formed on the threaded sleeve 403. In order to reduce movement friction, in this embodiment, the sliding block is set to be a ball 407 embedded in the outer wall of the threaded sleeve 403.

[0072] The feed motor 401 is reversed, and the rotation of the feed motor 401 is pre-set to be counted in full circles. Therefore, after milling is completed, the positioning ball 407 on the threaded sleeve 403 still corresponds to the bottom of the sliding groove 405 on the inner wall of the milling tube 302, and the reverse rotation drives the threaded sleeve 403 to retract along the sliding groove 405.

[0073] The opposite surface of the locking flange 404 is a serrated surface to provide sufficient limiting force.

[0074] like Figure 9 The figure shows a cross-sectional view of the driven feed assembly 5 employed in the present invention. During driven feed operation, the feed motor 401 directly drives the cutter head 303, maintaining a constant position. A coaxial movable tube 501 is sleeved around the inner or outer wall of the milling tube 302. The movable tube 501 is formed with a stepped portion of its circumference, connected to a spring. The other end of the spring is embedded within the wall thickness of the milling tube 302, enhancing the accuracy of the spring's axial movement during deformation. Initially, the spring is unloaded, and the cutter head 303 is concealed within the movable tube 501. When machining is required, the milling tube 302 with the movable tube 501 is pressed against the workpiece until the cutter head 303 contacts the workpiece surface. At this point, the spring is compressed. During continued milling, the movable tube 501 remains pressed against the workpiece, gradually increasing its deformation. After machining is complete and the cutter is retracted, the spring returns to its original position, and the movable tube 501 returns to its original position, enveloping the cutter head 303.

[0075] In this working condition, the flexible ring 305 is installed at the mouth of the movable tube 501.

[0076] The main advantage of the utility model is that the milling chips can be removed in time, thus ensuring the cleanliness of the milling environment.

[0077] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A flat chipless milling machine tool, characterized in that: The invention comprises a machine tool body (1), a vacuum system (2) arranged on the side of the machine tool body (1), and an air suction port of the vacuum system (2) correspondingly arranged at the milling position of the machine tool body (1). The machine tool body (1) is provided with a milling station, and mutually independent milling cutter devices (3) are respectively provided on both sides of the milling station, and each set of milling cutter devices (3) includes: The three-way slide rail (301) is installed on the machine tool body (1). The milling tube (302) is driven by the three-way slide rail (301); during milling, the end of the milling tube (302) is attached to the surface of the workpiece to be processed. The cutter head (303) is movably and telescopically arranged in the milling tube (302). The vacuum tube (304) is led out from the vacuum system (2) and communicated with the milling tube (302).

2. The plane chipless milling machine according to claim 1, characterized in that: The three-way slide rails (301) are symmetrically arranged on both sides of the milling station.

3. The plane chipless milling machine according to claim 1, characterized in that: The end of the milling tube (302) is provided with a flexible ring (305) having elastic reset capability.

4. The plane chipless milling machine according to claim 1, characterized in that: During the milling process, the flexible ring (305) is attached to the surface of the workpiece to be machined, forming a closed milling space around the cutter head (303).

5. The plane chipless milling machine according to claim 1, characterized in that: The milling processing tube (302) is internally provided with an active feed assembly (4) for pushing the cutter head (303) to move and retract. The active feed assembly (4) directly pushes the cutter head (303) to extend. Alternatively, a driven feed assembly (5) is formed on the outer wall of the milling tube (302), and the driven feed assembly (5) compresses the tube wall to cause the cutter head (303) to extend.

6. The plane chipless milling machine according to claim 5, characterized in that: The active feed assembly (4) comprises: The feed motor (401), as a power source, is installed on the three-way slide rail (301). The threaded shaft (402) is connected to the output shaft of the feed motor (401). The threaded sleeve (403) is sleeved with the threaded shaft (402) and is pushed by the threaded shaft (402); the cutter head (303) is connected to the bottom of the threaded sleeve (403).

7. The plane chipless milling machine according to claim 6, characterized in that: The bottom end circumference of the threaded shaft (402) and the top end portion of the threaded sleeve (403) are provided with a locking flange (404).

8. The plane chipless milling machine according to claim 5, characterized in that: The driven feed assembly (5) comprises a movable tube (501) sleeved on the milling tube (302), and the movable tube (501) and the milling tube (302) are connected via an axially arranged elastic member (502).

9. The plane chipless milling machine according to claim 1, characterized in that: Each set of milling cutter devices (3) comprises a forward milling cutter and a reverse milling cutter, and the forward milling cutter and the reverse milling cutter are respectively located on the upper and lower sides of the workpiece to be processed.

10. The surface chipless milling machine according to claim 9, characterized in that: The forward milling cutter and reverse milling cutter are set independently of each other.

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