Thickness gradual change type milling machine fixture for preventing cutting tool from being hindered

Abstract

The utility model relates to the field of machining, and discloses a thickness gradually-changing type milling machine fixture capable of preventing a cutting tool from being hindered, which comprises a milling machine body, a fixing mechanism is arranged at the top end of a working table of the milling machine body, the fixing mechanism comprises a mounting plate, the top end of the mounting plate is fixedly connected with an air cylinder, a slide way is arranged at the top end of the mounting plate, and the air cylinder is fixedly connected with the slide way. And a sliding block is slidably connected to the inner wall of the sliding way, an output shaft of the air cylinder is fixedly connected with a mounting shell, a clamping assembly is arranged in the mounting shell and comprises a working groove, and a direction adjusting device is jointly arranged at the lower end of the mounting shell and the interior of the sliding block. According to the utility model, the clamping assembly is matched with the direction adjusting device for use, so that the mounting plate can rotate to a proper position according to the uniform gradual change of the cutting angle of the workpiece, and the angle of the workpiece does not need to be adjusted for many times in the cutting process of the workpiece needing to achieve the gradual change effect.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a thickness gradient milling machine fixture which can prevent a cutting tool from being blocked. Background Art

[0002] One of the design principles of workpieces is that the material thickness needs to be uniformly gradient. Uneven material thickness will have the risk of shrinkage, so a uniform gradient is required in the area where the material thickness suddenly changes. Usually, in order to ensure that the area where the material thickness suddenly changes can achieve a uniform gradient effect, the milling cutter will be used to cut the area where the material thickness suddenly changes, so as to achieve a uniform gradient effect in the mutation area.

[0003] At present, most existing milling machines use a fixed but high-speed rotating tool to cut a workpiece fixed on a workbench by a clamp, and the workpiece can move relative to the tool as the workbench moves to achieve cutting processing.

[0004] At present, when it is necessary to cut a sudden change area of ​​the workpiece material thickness to achieve a gradual effect, the angle of the workpiece is often adjusted multiple times. Therefore, a thickness gradual change milling machine fixture that prevents obstruction of the cutting tool is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a thickness gradient milling machine fixture that prevents obstruction of cutting tools, aiming to improve the problem in the prior art that when cutting the sudden change area of ​​the workpiece material thickness to achieve a gradient effect, the workpiece angle often needs to be adjusted multiple times.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thickness gradient milling machine fixture for preventing obstruction of cutting tools, comprising a milling machine body, a fixing mechanism is arranged on the top of the working table of the milling machine body, the fixing mechanism comprises a mounting plate, the top of the mounting plate is fixedly connected with a cylinder, the top of the mounting plate is provided with a slideway, the inner wall of the slideway is slidably connected with a slider, the output shaft of the cylinder is fixedly connected with a mounting shell, the interior of the mounting shell is provided with a clamping assembly, the clamping assembly comprises a working groove, the working groove is provided on the inner wall of the mounting shell, the lower end of the mounting shell and the interior of the slider are jointly provided with a direction adjustment device, the direction adjustment device comprises a moving groove, the moving groove is provided on the inner wall of the bottom end of the mounting shell, the inner wall of the moving groove is penetrated by a control rod, the interior of the control rod is provided with a fixing assembly, the fixing assembly comprises an air pressure chamber, and the air pressure chamber is provided on the inner wall of the control rod.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the working groove is rotatably connected with a threaded rod, the outer wall of the threaded rod penetrates and is threadedly connected with a sliding block, the outer wall of the sliding block is slidably connected to the inner wall of the working groove, the left end of the sliding block is fixedly connected with a clamp 1, the front end outer wall of the mounting shell at the left end of the working groove is fixedly connected with a connecting block, and the right end of the connecting block is fixedly connected with a clamp 2.

[0009] As a further description of the above technical solution:

[0010] The bottom end of the control rod is rotatably connected to the inner wall of the slider, the outer wall of the control rod at the top of the mounting shell is fixedly connected to a steering block, the inner wall of the steering block is slidably connected to a magnetic block 1, the inner wall of the slider is slidably connected to a magnetic block 2, and a telescopic rod 1 is arranged inside the magnetic block 1.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the control rod is fixedly connected to an airbag, the interior of the airbag is communicated with the interior of the air pressure chamber, the inner wall piston of the air pressure chamber is connected to a slide plate, the bottom end of the slide plate is elastically connected to the inner wall of the air pressure chamber by a spring, the top end of the slide plate is rotatably connected to telescopic rod 2, and the top outer wall of the telescopic rod 2 is threadedly connected to the top inner wall of the control rod.

[0013] As a further description of the above technical solution:

[0014] The shape of the slider is a hollow straight slot shape, and the size of the outer wall of the slider matches the size of the slideway.

[0015] As a further description of the above technical solution:

[0016] The shape of the mounting shell is similar to a hollow cube with an upper front end and a right end both being opened.

[0017] As a further description of the above technical solution:

[0018] The bottom magnetic pole of the magnetic block 1 is opposite to the top magnetic pole of the magnetic block 2, and the attraction between the magnetic block 1 and the magnetic block 2 is greater than the friction between the mounting shell and the slider.

[0019] As a further description of the above technical solution:

[0020] The air pressure chamber is in the shape of a cylinder, and the inner diameter of the inner wall of the area where the air pressure chamber is located is larger than the inner diameter of the inner wall of the area where the control rod is located above the air pressure chamber.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by using the clamping assembly in conjunction with the direction-adjusting device, the mounting plate can be rotated to a suitable position according to the cutting angle required for uniform gradient of the workpiece, thereby ensuring that the workpiece angle does not need to be adjusted multiple times during the cutting process of the workpiece that needs to achieve a gradient effect.

[0023] 2. In the utility model, the telescopic rod 1 and the telescopic rod 2 are retractable to ensure that the telescopic rod 1 and the telescopic rod 2 can be located at the lower end of the workpiece during the processing of the workpiece, and the use of a fixing component can ensure that the steering block of the telescopic rod 2 cannot rotate after the telescopic rod 2 is retracted, thereby ensuring the stability of the equipment during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the fixing mechanism in the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the fixing mechanism in the utility model;

[0027] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part A;

[0028] Figure 5 For the utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part B;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure disassembly of the fixing mechanism in the utility model;

[0030] Figure 7 For the utility model Figure 6 Schematic diagram of the enlarged three-dimensional structure of part C in the middle.

[0031] Legend:

[0032] 1. Milling machine body; 2. Fixing mechanism; 21. Mounting plate; 22. Cylinder; 23. Slide; 24. Slider; 25. Mounting shell; 26. Clamping assembly; 27. Direction adjustment device; 28. Fixing assembly; 261. Working groove; 262. Threaded rod; 263. Sliding block; 264. Fixture 1; 265. Connecting block; 266. Fixture 2; 271. Moving groove; 272. Control rod; 273. Steering block; 274. Magnetic block 1; 275. Magnetic block 2; 276. Telescopic rod 1; 281. Air pressure chamber; 282. Air bag; 283. Slide plate; 284. Spring; 285. Telescopic rod 2. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a thickness gradient milling machine fixture that prevents obstruction of cutting tools, including a milling machine body 1, a fixing mechanism 2 is arranged on the top of the workbench of the milling machine body 1, and the fixing mechanism 2 includes a mounting plate 21, and the mounting plate 21 is detachably connected to the workbench of the milling machine body 1. This technology is a prior art and can be implemented by technicians in this field, so it will not be described in detail in this case. The top and bottom ends of the mounting plate 21 are kept horizontal, and the horizontal plane setting ensures that the mounting plate 21 can be easily installed on the top of the workbench of the milling machine body 1, and the stable installation of the workpiece is guaranteed. The top of the mounting plate 21 is fixedly connected with a cylinder 22, and a slideway 23 is provided at the top of the mounting plate 21. The slideway 23 is set in a horizontal shape. A slider 24 is slidably connected to the inner wall of the slideway 23. The shape of the slider 24 is a hollow straight slot shape, and the outer wall size of the slider 24 matches the size of the slideway 23. By setting the shape, it is ensured that the slider 24 can rotate relative to the mounting plate 21, thereby achieving the effect of rotating the mounting plate 21. The output shaft of the cylinder 22 is fixedly connected with a mounting shell 25, and the shape of the mounting shell 25 is approximately a hollow cube with an upper front end and a right end both set to be open.

[0035] Reference Figure 2 , Figure 3 and Figure 6The mounting shell 25 is provided with a clamping assembly 26 inside, and the clamping assembly 26 includes a working groove 261, which is provided on the inner wall of the mounting shell 25, and is provided at the upper end of the mounting shell 25. The inner wall of the working groove 261 is rotatably connected with a threaded rod 262, and the right end of the threaded rod 262 penetrates the inner wall of the mounting shell 25, and the outer wall of the threaded rod 262 penetrates and is threadedly connected with a sliding block 263, and the outer wall of the sliding block 263 is slidably connected with the inner wall of the working groove 261, and the outer wall of the sliding block 263 is connected with the inner wall of the working groove 261. The sliding connection relationship of the inner wall of the working groove 261 ensures that the sliding block 263 will not rotate with the rotation of the threaded rod 262, and can only slide left and right. The left end of the sliding block 263 is fixedly connected with a clamp 264, and the left end of the clamp 264 is provided with a protective ball made of rubber material. The front end outer wall of the mounting shell 25 at the left end of the working groove 261 is fixedly connected with a connecting block 265, and the right end of the connecting block 265 is fixedly connected with a clamp 266. The clamp 266 and the clamp 1 264 are of the same model but in opposite directions.

[0036] Reference Figure 3 , Figure 4 and Figure 7 The lower end of the mounting shell 25 and the interior of the slider 24 are jointly provided with a direction adjustment device 27, which includes a moving groove 271, which is opened on the inner wall of the bottom end of the mounting shell 25, and a control rod 272 is passed through the inner wall of the moving groove 271. Through the setting of the moving groove 271, it is ensured that the control rod 272 can produce a front-to-back displacement relative to the mounting shell 25, and the bottom end of the control rod 272 is rotatably connected to the inner wall of the slider 24, and the outer wall of the control rod 272 at the top of the mounting shell 25 is fixedly connected with a steering block 273, and the inner wall of the steering block 273 is slidably connected with a magnetic block 1 274, and the inner wall of the slider 24 is slidably connected with a magnetic block 275, and the bottom end magnetic pole of the magnetic block 1 274 is opposite to the magnetic pole at the top end of the magnetic block 275. Through the setting of opposite magnetic poles, it is ensured that there is a strong attraction between the magnetic block 1 274 and the magnetic block 2 275, and a telescopic rod 1 276 is arranged inside the magnetic block 1 274.

[0037] Reference Figure 3 and Figure 5The control rod 272 is provided with a fixing assembly 28 inside, and the fixing assembly 28 includes a pressure chamber 281. The pressure chamber 281 is in the shape of a cylinder, and the inner diameter of the inner wall of the area where the pressure chamber 281 is located is larger than the inner diameter of the inner wall of the control rod 272 located above the pressure chamber 281. The pressure chamber 281 is opened on the inner wall of the control rod 272, and the outer wall of the control rod 272 is fixedly connected with an air bag 282. The interior of the air bag 282 is connected to the interior of the pressure chamber 281. The pressure chamber 281 is provided with a fixing assembly 288, and the fixing assembly 288 is provided with a fixing assembly 289. The inner wall piston of the air pressure chamber 281 is connected with a slide plate 283, and the diameter of the inner wall of the air pressure chamber 281 is set to ensure that when the slide plate 283 slides to the top of the air pressure chamber 281, it cannot continue to move upward, thereby ensuring the air pressure balance inside the air pressure chamber 281. The bottom end of the slide plate 283 is elastically connected to the inner wall of the air pressure chamber 281 through a spring 284, and the top of the slide plate 283 is rotatably connected to a telescopic rod 285, and the top outer wall of the telescopic rod 285 is threadedly connected to the top inner wall of the control rod 272.

[0038] Working principle: When in use, the staff first places the workpiece between clamp 1 264 and clamp 2 266, and keeps the thinner end of the workpiece close to clamp 1 264. Then the staff rotates the threaded rod 262, so that the threaded rod 262 drives the sliding block 263 to move toward the direction close to clamp 1 264, so that clamp 2 266 moves with the sliding block 263 toward the direction close to clamp 1 264, so that the workpiece is fixed under the joint action of clamp 1 264 and clamp 2 266.

[0039] When the workpiece is fixed, the staff rotates the top of the telescopic rod 285 so that the top threaded part of the telescopic rod 285 leaves the area where the control rod 272 is located, and then pulls the telescopic rod 1 276 and the telescopic rod 285 upward so that the top of the telescopic rod 1 276 contacts the left outer wall of the workpiece. Then the staff moves the telescopic rod 1 276 so that the telescopic rod 1 276 is in the horizontal plane where the rightmost end of the gradient area of ​​the workpiece is located, and moves the telescopic rod 1 276 so that the telescopic rod 1 276 contacts the right end surface of the workpiece.

[0040] When the staff moves the telescopic rod 1 276 and the telescopic rod 2 285, since the slider 24 is inside the slide 23, the position of the slider 24 cannot be changed, so the control rod 272 cannot move and can only rotate. Therefore, when moving to contact the front surface of the workpiece, the actual operation is to move the mounting shell 25 so that the mounting shell 25 drives the workpiece to move. Similarly, when changing the contact state between the telescopic rod 2 285 and the workpiece surface, since the magnet 1 274 and the magnet 2 275 attract each other, and the magnet 2 275 is inside the slider 24, the magnet 1 274 can only drive the magnet 2 275 to move in the horizontal direction, and the movement of the front and rear ends needs to reach a relative movement state by moving the mounting shell 25, so as to achieve the effect of making the telescopic rod 1 276 and the telescopic rod 2 285 contact the workpiece surface.

[0041] After the movement is completed, the direction of the mounting shell 25 is adjusted to the position where the milling cutter needs to cut, so that the workpiece achieves a gradual thickness change effect. At this time, the staff retracts the telescopic rod 1 276 and the telescopic rod 285, and when retracting the telescopic rod 285, the top part of the telescopic rod 285 is rotated, so that the top part of the telescopic rod 285 is limited under the control of the threaded groove at the top of the control rod 272, so that the bottom end of the telescopic rod 285 squeezes the slide plate 283, so that the gas inside the air pressure chamber 281 enters the interior of the airbag 282, so that the airbag 282 expands, so that the control rod 272 is tightly attached to the inner wall of the slider 24, so that the control rod 272 cannot rotate, and the mounting shell 25 cannot move.

[0042] At this time, the staff starts the equipment and starts the cylinder 22, so that the cylinder 22 can drive the mounting shell 25 and the workpiece to move, and at the same time the workpiece is milled by the milling cutter, so that the cut part can achieve a gradual thickness effect.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thickness gradient milling machine fixture for preventing obstruction of cutting tools, comprising a milling machine body (1), characterized in that: The top of the workbench of the milling machine body (1) is provided with a fixing mechanism (2), the fixing mechanism (2) comprises a mounting plate (21), the top of the mounting plate (21) is fixedly connected to a cylinder (22), the top of the mounting plate (21) is provided with a slideway (23), the inner wall of the slideway (23) is slidably connected to a slider (24), the output shaft of the cylinder (22) is fixedly connected to a mounting shell (25), the interior of the mounting shell (25) is provided with a clamping assembly (26), the clamping assembly (26) comprises a working groove (261), the working groove (261 ) is opened on the inner wall of the mounting shell (25), and the lower end of the mounting shell (25) and the interior of the slider (24) are jointly provided with a direction adjustment device (27), and the direction adjustment device (27) includes a movable groove (271), and the movable groove (271) is opened on the inner wall of the bottom end of the mounting shell (25), and the inner wall of the movable groove (271) is penetrated by a control rod (272), and the interior of the control rod (272) is provided with a fixing component (28), and the fixing component (28) includes a pneumatic chamber (281), and the pneumatic chamber (281) is opened on the inner wall of the control rod (272).

2. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 1, characterized in that: The inner wall of the working groove (261) is rotatably connected to a threaded rod (262), the outer wall of the threaded rod (262) penetrates and is threadedly connected to a sliding block (263), the outer wall of the sliding block (263) is slidably connected to the inner wall of the working groove (261), the left end of the sliding block (263) is fixedly connected to a clamp 1 (264), the front end outer wall of the mounting shell (25) at the left end of the working groove (261) is fixedly connected to a connecting block (265), and the right end of the connecting block (265) is fixedly connected to a clamp 2 (266).

3. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 1, characterized in that: The bottom end of the control rod (272) is rotatably connected to the inner wall of the slider (24); the outer wall of the control rod (272) at the top of the mounting shell (25) is fixedly connected to a steering block (273); the inner wall of the steering block (273) is slidably connected to a magnetic block 1 (274); the inner wall of the slider (24) is slidably connected to a magnetic block 2 (275); and a telescopic rod 1 (276) is arranged inside the magnetic block 1 (274).

4. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 1, characterized in that: The outer wall of the control rod (272) is fixedly connected to an air bag (282), the interior of the air bag (282) is communicated with the interior of the air pressure chamber (281), the inner wall piston of the air pressure chamber (281) is connected to a slide plate (283), the bottom end of the slide plate (283) is elastically connected to the inner wall of the air pressure chamber (281) via a spring (284), the top end of the slide plate (283) is rotatably connected to a telescopic rod 2 (285), and the top outer wall of the telescopic rod 2 (285) is threadedly connected to the top inner wall of the control rod (272).

5. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 1, characterized in that: The shape of the slider (24) is a hollow straight slot shape, and the size of the outer wall of the slider (24) matches the size of the slideway (23).

6. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 1, characterized in that: The shape of the installation shell (25) is similar to a hollow cube with the front upper end and the right end both being opened.

7. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 3, characterized in that: The bottom magnetic pole of the first magnetic block (274) is opposite to the top magnetic pole of the second magnetic block (275), and the attraction between the first magnetic block (274) and the second magnetic block (275) is greater than the friction between the mounting shell (25) and the slider (24).

8. The thickness gradient milling machine fixture for preventing obstruction of cutting tools according to claim 4, characterized in that: The air pressure chamber (281) is in the shape of a cylinder, and the inner diameter of the inner wall of the area where the air pressure chamber (281) is located is larger than the inner diameter of the inner wall of the area where the control rod (272) is located above the air pressure chamber (281).

Images