Full-automatic sample milling machine with sample portable limiting function

Abstract

The invention relates to the technical field of sample milling machines, in particular to a full-automatic sample milling machine with a sample portable limiting function, which comprises a frame body, and further comprises a lifting frame which is mounted on one side of the frame body in a thread fit manner; the rotating cylinder is movably mounted at the bottom of the lifting frame; the disc is fixedly mounted at one end of the rotating cylinder away from the lifting frame; the cylinder is movably mounted in the disc and is communicated with the through hole; the cylinder is movably mounted in the cylinder and is in sliding connection with the through hole; the milling cutter is rotationally mounted at the bottom of the cylinder; the transverse groove is formed in the disc and is communicated with the through hole; the shielding assembly is arranged in the transverse groove and used for shielding the through hole; the driving assembly is arranged on the cylinder and used for driving the milling cutter to move. According to the full-automatic sample milling machine with the portable sample limiting function, the two baffles abut against each other through cooperation of a plurality of components such as the vertical rod, the incomplete gear and the cylinder, the through hole can be shielded, and the milling cutter is protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sample milling machines, in particular to a full-automatic sample milling machine with sample portable limiting function. BACKGROUND

[0002] A sample milling machine is a special equipment for surface processing of metal, alloy or other material samples. It quickly prepares a smooth and clean sample surface by milling to meet the needs of chemical composition analysis (such as spectral detection), metallographic observation or mechanical property testing, and is widely used in metallurgy, machinery manufacturing, geological exploration and other industries.

[0003] In the metallurgical industry, a sample milling machine is a commonly used equipment, mainly used for surface treatment in the process of preparing metal samples. It removes the oxidation layer, burrs, unevenness or contaminated parts on the surface of the metal sample by milling to ensure that the sample surface is smooth and uniform, which is convenient for subsequent chemical composition analysis (such as spectral analysis) or physical property testing. When the same milling cutter needs to be used repeatedly in a short time, the milling cutter is usually placed on the sample milling machine without disassembling and storing it, which can facilitate the next use. However, the milling cutter is exposed to the air at will, which may cause the following problems: rusting: metal milling cutters (especially high-speed steel) are prone to rust in humid environments, affecting cutting accuracy; contamination: dust or chemical substances (such as sulfides) in the air adhere to the cutting edge, causing contamination of the sample when used next time. SUMMARY

[0004] Therefore, it is necessary to provide a full-automatic sample milling machine with sample portable limiting function which can protect the milling cutter when the sample milling machine is not working.

[0005] The full-automatic sample milling machine with sample portable limiting function provided by the present application comprises a frame body and a storage plate movably installed on the frame body, and further comprises: A lifting frame is screw-fitted on one side of the frame body. A rotating cylinder is movably installed at the bottom of the lifting frame. A disc is fixedly installed at one end of the rotating cylinder away from the lifting frame. A plurality of through holes are arranged in an annular array at the bottom of the disc. A cylinder is movably installed inside the disc and communicates with the through holes. A cylindrical column is movably installed inside the cylinder and is in sliding connection with the through holes. A milling cutter is rotatably installed at the bottom of the cylindrical column. A horizontal groove is arranged in the disc and communicates with the through holes. A shielding assembly is arranged in the horizontal groove and is used for shielding the through holes. A driving assembly is arranged on the cylinder and is used for driving the milling cutter to move.

[0006] In one embodiment, the shielding assembly includes two baffles, which abut against each other and are both rotatably connected to the inner wall of the transverse groove. External teeth are provided on one side of the two baffles and the two are engaged for transmission. A vertical rod is fixedly provided on one side of one of the baffles, and the vertical rod is rotatably connected to the inner wall of the transverse groove.

[0007] In one embodiment, the driving assembly includes a curved groove provided on the outer side of the cylinder, a limit rod is movably provided in the curved groove, and the other end of the limit rod is fixedly connected to the cylinder.

[0008] In one embodiment, a driving gear is fixedly provided on a side of the vertical rod away from the baffle, and an incomplete gear is fixedly sleeved on the outer side of the cylinder, and the incomplete gear is meshed with the driving gear for transmission.

[0009] In one embodiment, the cylinder is located above the incomplete gear and is fixedly sleeved with a positioning gear, a fixing rod is movably provided inside the rotating cylinder, one end of the fixing rod is fixedly connected to the bottom of the lifting frame, and the other end movably passes through the disc, and a circular plate is located inside the disc and fixed at the end, a limiting gear is provided on the outside of the circular plate, and the positioning gear is meshed with the limiting gear for transmission, a ring is fixedly provided on the outside of the fixing rod, and internal teeth are fixedly provided on the inside of the ring, and the positioning gear is meshed with the internal teeth for transmission.

[0010] In one embodiment, the incomplete gear is fixedly connected to the inner wall of the disc via a torsion spring, and the cylinder is movably arranged inside the torsion spring.

[0011] In one embodiment, movable grooves are axially symmetrically provided on both sides of the bottom of the cylinder, a movable cylinder is slidably provided in the movable groove, a movable rod is movably provided in the movable cylinder, a wiping pad is fixedly provided at one end of the movable rod away from the movable cylinder, the wiping pad is in sliding contact with the surface of the milling cutter, and the movable cylinder and the inner wall of the movable groove are connected by a positioning spring.

[0012] In one embodiment, a circular ring is fixedly sleeved on the outer side of the moving rod, and the circular ring is slidably connected to the moving cylinder. The circular ring is connected to the inner wall of the moving cylinder through a reset spring, and the reset spring is movably sleeved on the outer side of the moving rod.

[0013] In one of the embodiments, the disc is axially symmetrically fixedly arranged with a vertical plate at the position of the through hole, the vertical plate is provided with a vertical groove, an arc-shaped groove and a straight groove, which are communicated with each other, the wiping pad is fixedly arranged with a positioning rod at the bottom, and the positioning rod is slidably connected with the vertical groove, the arc-shaped groove and the straight groove.

[0014] In one of the embodiments, the clamping plates are axially symmetrically movably arranged at the two ends of the placement plate.

[0015] The full-automatic sample milling machine with the sample portable limiting function realizes the mutual abutment of the two baffles through the cooperation of the vertical rod, the incomplete gear, the cylinder and other components, can shield the through hole, and plays a protection role on the milling cutter; the cylinder, the curved groove, the limiting rod and other components are cooperated to realize the downward movement of the cylinder and the milling cutter, which is convenient for the milling cutter to mill the sample; the positioning rod, the vertical plate, the vertical groove, the arc-shaped groove and the straight groove and other components are cooperated to realize that the wiping pad can clean the surface of the milling cutter during the downward movement of the milling cutter, and remove the impurities on the surface. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the structure of the disc in the present application; Figure 3 It is a schematic diagram of the internal structure of the disc in the present application; Figure 4 It is a schematic diagram of the bottom structure of the disc in the present application; Figure 5 It is Figure 4 It is an enlarged schematic diagram of part A in the present application; Figure 6 It is a sectional view of the disc in the present application; Figure 7 It is a schematic diagram of the structure of the curved groove in the present application; Figure 8 It is a schematic diagram of the structure of the wiping pad in the present application; Figure 9 It is Figure 8 It is an enlarged schematic diagram of part B in the present application; Figure 10 It is a schematic diagram of the structure of the moving rod in the present application; Figure 11The structure diagram of the reset spring in the present application.

[0018] Reference signs: 1, frame body; 2, storage plate; 3, lifting frame; 4, rotating cylinder; 5, disc; 51, through hole; 52, transverse groove; 6, cylinder; 7, cylinder; 71, moving groove; 8, shielding assembly; 81, baffle; 82, external teeth; 83, vertical rod; 9, driving assembly; 91, curved groove; 92, limiting rod; 10, milling cutter; 11, driving gear; 12, incomplete gear; 13, positioning gear; 14, fixed rod; 15, disc; 16, limiting gear; 17, collar; 18, internal teeth; 19, torsional spring; 20, moving cylinder; 21, moving rod; 22, wiping pad; 23, positioning spring; 24, annular ring; 25, reset spring; 26, vertical plate; 261, vertical groove; 262, arc-shaped groove; 263, straight groove; 27, positioning rod; 28, clamping plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the description of the present application are for the purpose of illustration only and do not indicate the only embodiment.

[0021] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In the present application, unless otherwise explicitly specified and limited, the first feature is "on", "under" the second feature, which can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature is "below", "under" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0023] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0024] The present application is described below in conjunction with Figures 1-10 A full-automatic milling machine with sample portable limiting function is described.

[0025] As Figures 1-7 shown, in one embodiment, a full-automatic milling machine with sample portable limiting function, comprising a frame body 1 and a movable mounting plate 2 movably mounted on the frame body 1, further comprising: Lifting frame 3, screw fitting installation on one side of the frame body 1; Rotary cylinder 4, movably mounted at the bottom of the lifting frame 3; Disc 5, fixedly installed at one end of the rotary cylinder 4 away from the lifting frame 3; Through hole 51, annular array is opened at the bottom of the disc 5, and a plurality of through holes are provided; Cylinder 6, movably mounted inside the disc 5, in communication with the through hole 51; Cylinder 7, movably mounted inside the cylinder 6, in sliding connection with the through hole 51; Milling cutter 10, rotatably mounted at the bottom of the cylinder 7; Horizontal groove 52, provided in the disc 5, in communication with the through hole 51; Shielding assembly 8, provided in the horizontal groove 52, for shielding the through hole 51; Drive assembly 9, provided on the cylinder 6, for moving the milling cutter 10. Specifically, the sample to be milled is placed on the placement plate 2 for positioning, the number of through holes 51 is four in the application, the types of milling cutters 10 installed at the bottom of each cylinder 7 can be different, so that multiple types of milling cutters 10 can be arranged in the disc 5, and the appropriate milling cutter 10 is selected for milling according to the type of the sample to be processed. In the initial state, only one milling cutter 10 in the disc 5 will move downward to the outside of the through hole 51, which is convenient for milling the sample. The corresponding shielding assembly 8 of the milling cutter 10 is in the open state, and the remaining three shielding assemblies 8 are in the closed state. The corresponding milling cutter 10 is located in the through hole 51, and the shielding assembly 8 shields the through hole 51, which can effectively protect the milling cutter 10. When the milling cutter 10 located outside the through hole 51 is not suitable for the sample, the milling cutter 10 needs to be switched, the rotating cylinder 4 is rotated clockwise, the rotating cylinder 4 drives the disc 5 to rotate, and the disc 5 drives another through hole 51 to move to the top of the placement plate 2 during rotation. The single rotation angle is ninety degrees, and the driving assembly 9 arranged on the cylinder 6 drives the corresponding cylinder 7 and milling cutter 10 of the through hole 51 to move downward during rotation. In this process, the shielding assembly 8 arranged in the transverse groove 52 is used to remove the shielding of the through hole 51, so that the milling cutter 10 can move to the outside of the through hole 51. Then, the lifting frame 3 is moved downward along the frame body 1, and the downward movement of the lifting frame 3 makes the milling cutter 10 move downward and contact the surface of the sample. The rotation of the milling cutter 10 can remove the impurities on the surface of the sample, which is convenient for subsequent analysis. If the milling cutter 10 rotated by ninety degrees is still not suitable, it can be rotated by another ninety degrees until the appropriate milling cutter 10 is selected.

[0026] Referring to Figure 6 and Figure 7 In the embodiment, the shielding assembly 8 includes two baffles 81, the two baffles 81 are abutted with each other and are rotationally connected with the inner wall of the transverse groove 52, one side of each of the two baffles 81 is provided with external teeth 82 and the two external teeth 82 are engaged in transmission, one side of one of the baffles 81 is fixedly provided with a vertical rod 83 penetrating through the baffle 81, and the vertical rod 83 is rotationally connected with the inner wall of the transverse groove 52.

[0027] Specifically, when the milling cutter 10 is located in the through hole 51, the two baffles 81 are abutted with each other in the middle, and the through hole 51 can be shielded to prevent dust in the air from entering the through hole 51. When the milling cutter 10 is switched, the disc 5 is rotated, the vertical rod 83 is rotated during rotation, the rotation of the vertical rod 83 drives the external teeth 82 on the same side to rotate, so that the two baffles 81 move away from each other, the baffles 81 no longer shield the through hole 51, and then the cylinder 7 and the milling cutter 10 move downward, the milling cutter 10 moves to the outside of the through hole 51, which is convenient for milling the sample.

[0028] Referring to Figure 6 and Figure 7As shown in the embodiment, the driving assembly 9 comprises a curved groove 91 formed on the outer side of the cylinder 6, and a limiting rod 92 movably arranged in the curved groove 91, and the other end of the limiting rod 92 is fixedly connected with the cylinder 7.

[0029] Specifically, when the corresponding milling cutter 10 needs to be switched, the disc 5 drives the cylinder 6 to revolve while making the cylinder 6 rotate, and the rotation of the cylinder 6 drives the curved groove 91 to rotate, and since the limiting rod 92 is movably arranged in the curved groove 91, the rotation of the cylinder 6 drives the cylinder 7 and the milling cutter 10 to move downward along the cylinder 6, and finally the milling cutter 10 moves to the outside of the through hole 51; similarly, the reverse rotation of the cylinder 6 drives the cylinder 7 and the milling cutter 10 to move upward to the initial position.

[0030] Referring to Figures 6-8 As shown in the embodiment, the vertical rod 83 is fixedly provided with a driving gear 11 on the side away from the baffle 81, and the outer side of the cylinder 6 is fixedly provided with an incomplete gear 12, and the incomplete gear 12 is in meshing transmission with the driving gear 11.

[0031] Specifically, when the corresponding milling cutter 10 needs to be switched, the rotation of the cylinder 6 drives the cylinder 7 and the milling cutter 10 to move downward, and at the same time, the rotation of the cylinder 6 also drives the incomplete gear 12 to rotate, and the rotation of the incomplete gear 12 drives the driving gear 11 and the vertical rod 83 to rotate, and the rotation of the vertical rod 83 drives the two baffles 81 to move away from each other, and the through hole 51 is not shielded, and after the two baffles 81 move away from each other, the part of the incomplete gear 12 provided with a gear is no longer in meshing transmission with the driving gear 11, and the driving gear 11 and the vertical rod 83 no longer rotate, and at this time, the cylinder 6 still continues to rotate, and the cylinder 7 and the milling cutter 10 continue to move downward, and at this time, the baffle 81 no longer abuts, and does not affect the downward movement of the milling cutter 10, and finally the milling cutter 10 moves to the outside of the through hole 51 to mill the sample; similarly, when the cylinder 6 reversely rotates, the milling cutter 10 is first moved to above the baffle 81, and then the two baffles 81 abut to shield the through hole 51.

[0032] Referring to Figure 3 and Figure 6 As shown in the embodiment, the cylinder 6 is fixedly provided with a positioning gear 13 above the incomplete gear 12, the rotating cylinder 4 is movably provided with a fixed rod 14, one end of the fixed rod 14 is fixedly connected with the bottom of the lifting frame 3, and the other end movably penetrates through the disc 5, and a circular plate 15 is fixedly arranged inside the disc 5 and at the end, a limiting gear 16 is arranged on the outer side of the circular plate 15, the positioning gear 13 is in meshing transmission with the limiting gear 16, a sleeve ring 17 is fixedly arranged on the outer side of the fixed rod 14, an inner tooth 18 is fixedly arranged on the inner side of the sleeve ring 17, and the positioning gear 13 is in meshing transmission with the inner tooth 18.

[0033] Specifically, when the milling cutter 10 does not match the sample to be processed, the rotating cylinder 4 is rotated by ninety degrees clockwise, the rotating cylinder 4 drives the disc 5 and the cylinder 6 to rotate synchronously, the rotation of the cylinder 6 drives the positioning gear 13 to rotate, and the rotating cylinder 4 is meshed with the limiting gear 16 arranged on the outer side of the circular plate 15 in the rotating process, so that the cylinder 6 can rotate around the disc 5 while also rotating by itself, the rotation of the cylinder 6 drives the incomplete gear 12 to rotate, and the rotation of the vertical rod 83 can realize that the baffles 81 are away from each other, so that the milling cutter 10 can move to the outside of the through hole 51; when the milling cutter 10 is used up or still does not match, the disc 5 is rotated in the same direction again, the positioning gear 13 corresponding to the milling cutter 10 is rotated to one side again, the positioning gear 13 is meshed with the internal teeth 18 arranged on the sleeve ring 17 in the process, the reverse rotation of the positioning gear 13 is realized, the reverse rotation of the cylinder 6 and the incomplete gear 12 is realized, and after the milling cutter 10 moves to the inside of the through hole 51 again, the two baffles 81 below are centered and abut against each other to shield the through hole 51; the fixed rod 14 provides a supporting action for the sleeve ring 17, and the fixed rod 14 remains stationary in the rotating process of the disc 5.

[0034] Referring to FIG. 9, Figure 3 , Figure 6 and Figure 7 , in the embodiment, the incomplete gear 12 is fixedly connected between the inner wall of the disc 5 and the torsional spring 19, and the cylinder 6 is movably arranged in the torsional spring 19.

[0035] Specifically, the rotation of the cylinder 6 drives the incomplete gear 12 to rotate, so that the milling cutter 10 can move downward to the outside of the through hole 51, and the torsional spring 19 is twisted and stored in the process; when the positioning gear 13 is meshed with the internal teeth 18 of the sleeve ring 17 to realize the reverse rotation of the positioning gear 13, the torsional spring 19 gradually recovers and drives the positioning gear 13 to rotate reversely, so that the cylinder 6 can rotate reversely to the initial state.

[0036] Referring to FIG. 9, Figures 8-10 , in the embodiment, the movement groove 71 is axially and symmetrically arranged on both sides of the bottom of the cylinder 7, the movement cylinder 20 is slidably arranged in the movement groove 71, the movement rod 21 is movably arranged in the movement cylinder 20, the wiping pad 22 is fixedly arranged on the end of the movement rod 21 away from the movement cylinder 20, the wiping pad 22 is slidably abutted against the surface of the milling cutter 10, and the movement cylinder 20 and the inner wall of the movement groove 71 are connected by the positioning spring 23.

[0037] Specifically, when the milling cutter 10 is located in the through hole 51, the two wiping pads 22 are flush with the surface of the milling cutter 10 and are located on both sides of the milling cutter 10. During the movement of the milling cutter 10 to the outside of the through hole 51, the moving cylinder 20 moves to the direction close to the milling cutter 10 along the moving groove 71. The movement of the moving cylinder 20 drives the movement of the moving rod 21 and the wiping pad 22. The wiping pad 22 slides along the surface of the milling cutter 10 to clean the surface of the milling cutter 10. During the process, the positioning spring 23 is compressed. Then, the action force applied to the moving cylinder 20 is removed. Under the action of the positioning spring 23, the moving cylinder 20, the moving rod 21 and the wiping pad 22 are pushed back to the initial position.

[0038] Referring to Figures 10-11 As shown in the embodiment, a circular ring 24 is fixedly sleeved outside the moving rod 21. The circular ring 24 is in sliding connection with the moving cylinder 20. The circular ring 24 and the inner wall of the moving cylinder 20 are connected through a reset spring 25. The reset spring 25 is movably sleeved outside the moving rod 21.

[0039] Specifically, when the milling cutter 10 moves downward, the wiping pad 22 reciprocates along the surface of the milling cutter 10 to clean the milling cutter 10. However, the flush of the wiping pad 22 with the milling cutter 10 affects the milling machining of the milling cutter 10 on the sample. After the wiping pad 22 reciprocates once to return to the initial position, the wiping pad 22 is moved to the direction close to the moving cylinder 20 to push the wiping pad 22. The wiping pad 22 drives the moving rod 21 and the circular ring 24 to move to the inside of the moving cylinder 20. The wiping pad 22 is no longer flush with the milling cutter 10 and is higher than the milling cutter 10 in height, which does not affect the machining of the milling cutter 10 on the sample. During the process, the reset spring 25 is compressed. After the milling cutter 10 completes the machining, the action force applied to the wiping pad 22 is removed. Under the action of the reset spring 25, the moving rod 21, the circular ring 24 and the wiping pad 22 return to the initial position.

[0040] Referring to Figures 4-5 and Figures 8-9 As shown in the embodiment, the disc 5 is axially symmetrically fixedly provided with a vertical plate 26 at the position of the through hole 51. The vertical plate 26 is provided with a vertical groove 261, an arc-shaped groove 262 and a straight groove 263, which are in communication with each other. The wiping pad 22 is fixedly provided with a positioning rod 27 at the bottom. The positioning rod 27 is in sliding connection with the vertical groove 261, the arc-shaped groove 262 and the straight groove 263.

[0041] Specifically, when the cylinder 7 and the milling cutter 10 move downward together, the wiping pad 22 and the positioning rod 27 move together, the milling cutter 10 moves to the outside of the through hole 51, the limiting rod 92 slides with the vertical slot 261 of the vertical plate 26, slides downward along the vertical slot 261 into the arc-shaped slot 262, and then moves transversely under the action of the arc-shaped slot 262, and then returns to the initial position, in the process, the wiping pad 22 slides along the surface of the milling cutter 10 to clean it, then the cylinder 7 and the milling cutter 10 continue to move downward, the positioning rod 27 moves to the bottom of the straight slot 263, and then moves upward relative to the downward direction under the abutting force of the inner wall of the straight slot 263, drives the wiping pad 22 and the moving rod 21 to move upward, compresses the return spring 25, and the wiping pad 22 moves above the milling cutter 10, so as not to affect the processing of the milling cutter 10 on the sample, at this time, the bottom of the cylinder 7 is flush with the through hole 51, and no collision with the vertical plate 26 occurs.

[0042] Referring to Figure 1 In the embodiment, the clamping plates 28 are axially symmetrically movably arranged at both ends of the placement plate 2.

[0043] Specifically, the clamping plates 28 arranged at both sides of the placement plate 2 can clamp and limit the sample, and ensure the stability of the sample during milling.

[0044] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0045] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fully automatic milling machine with a portable sample limiting function, comprising a frame and a storage plate movably mounted on the frame, characterized in that: Also includes: A lifting frame, threadedly adapted to be mounted on one side of the frame; A rotating cylinder movably mounted on the bottom of the lifting frame; A disc, fixedly mounted on an end of the rotating cylinder away from the lifting frame; A plurality of through holes are provided in a circular array at the bottom of the disc; a cylinder, movably mounted inside the disc and communicated with the through hole; A cylinder, movably mounted inside the cylinder and slidably connected to the through hole; a milling cutter, rotatably mounted on the bottom of the cylinder; a transverse groove, provided in the disc and communicating with the through hole; a shielding assembly, disposed in the transverse groove and used for shielding the through hole; A driving assembly is arranged on the cylinder and is used for driving the milling cutter to move.

2. The fully automatic milling machine with sample portable limiting function according to claim 1 is characterized in that: The shielding assembly includes two baffles, which abut against each other and are both rotatably connected to the inner wall of the transverse groove. External teeth are provided on one side of the two baffles and the two are engaged for transmission. A vertical rod is fixedly provided on one side of one of the baffles, and the vertical rod is rotatably connected to the inner wall of the transverse groove.

3. The fully automatic milling machine with portable sample limiting function according to claim 2 is characterized in that: The driving assembly includes a curved groove provided on the outer side of the cylinder, a limiting rod is movably provided in the curved groove, and the other end of the limiting rod is fixedly connected to the cylinder.

4. The fully automatic milling machine with sample portable limiting function according to claim 2 is characterized in that: A driving gear is fixedly provided on one side of the vertical rod away from the baffle, and an incomplete gear is fixedly sleeved on the outer side of the cylinder. The incomplete gear is meshed with the driving gear for transmission.

5. The fully automatic milling machine with portable sample limiting function according to claim 4 is characterized in that: The cylinder is located above the incomplete gear and is fixedly sleeved with a positioning gear. A fixing rod is movably provided inside the rotating cylinder. One end of the fixing rod is fixedly connected to the bottom of the lifting frame, and the other end movably passes through the disc. A circular plate is located inside the disc and fixedly provided at the end. A limiting gear is provided on the outside of the circular plate, and the positioning gear is meshed with the limiting gear for transmission. A ring is fixedly provided on the outside of the fixing rod, and internal teeth are fixedly provided on the inside of the ring. The positioning gear is meshed with the internal teeth for transmission.

6. The fully automatic milling machine with portable sample limiting function according to claim 4 is characterized in that: The incomplete gear is fixedly connected to the inner wall of the disc via a torsion spring, and the cylinder is movably arranged inside the torsion spring.

7. The fully automatic milling machine with sample portable limiting function according to claim 1 is characterized in that: Axially symmetrical moving grooves are provided on both sides of the bottom of the cylinder, a moving cylinder is slidingly arranged in the moving groove, a moving rod is movably arranged in the moving cylinder, a wiping pad is fixedly arranged at one end of the moving rod away from the moving cylinder, the wiping pad is in sliding contact with the surface of the milling cutter, and the moving cylinder is connected to the inner wall of the moving groove by a positioning spring.

8. The fully automatic milling machine with portable sample limiting function according to claim 7, characterized in that: A circular ring is fixedly sleeved on the outer side of the moving rod. The circular ring is slidably connected to the moving cylinder. The circular ring is connected to the inner wall of the moving cylinder via a return spring. The return spring is movably sleeved on the outer side of the moving rod.

9. The fully automatic milling machine with portable sample limiting function according to claim 8, characterized in that: The disc is axially symmetrically fixed with a vertical plate at the position of the through hole, and a vertical groove, an arc groove and a straight groove are opened on the vertical plate, which are interconnected. A positioning rod is fixed at the bottom of the wiping pad, and the positioning rod is slidably connected with the vertical groove, the arc groove and the straight groove.

10. The fully automatic milling machine with portable sample limiting function according to claim 1, characterized in that: Clamping plates are axially symmetrically arranged at both ends of the storage plate.

Images