Convenient-to-replace milling cutter for punching and surface milling equipment

Abstract

The utility model relates to the technical field of milling cutters, in particular to a milling cutter convenient to replace for punching and face milling equipment, which mainly comprises a machine body and a milling cutter replacing mechanism, the milling cutter replacing mechanism is positioned in the machine body, is used for face milling during product processing and comprises a mounting seat, and the mounting seat is fixedly mounted on the surface of the machine body. The connecting base is detachably mounted in the mounting base, a tool bit is fixedly mounted on the lower surface of the connecting base, the connecting base is pushed to continue to move upwards towards the interior of the inserting hole, the upper surface of the moving block makes contact with the surface of the clamping block, and the clamping block is squeezed by the moving block to retract into the sliding groove; when the clamping block pops up under the action of the first spring, the movable block is extruded to move upwards to form a whole with the hemispherical block, the surface of the movable block and the surface of the hemispherical block form an arc shape, the clamping block slides out of the surface of the hemispherical block, the connecting base is integrally taken out, and when a new connecting base and a new tool bit are replaced, the connecting base is inserted into the inserting hole again.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter for punching and milling equipment which is easy to replace. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the workpiece's excess in sequence and intermittently. Milling cutters are mainly used to process planes, steps, grooves, formed surfaces and cut off workpieces on milling machines.

[0003] At present, in the field of mechanical processing, especially in the process of using milling cutters for product processing, a difficult problem is often encountered - radial runout of the cutter teeth. Radial runout will cause uneven load on the blade and shorten the service life of the tool. In order to ensure the processing quality, the operator must regularly check the status of the milling cutter and replace the severely worn milling cutter when necessary. However, according to existing technology, replacing the milling cutter usually requires disassembling the entire milling cutter head and rotary head. This process is not only time-consuming but also labor-intensive. For the production line, this means that production activities must be suspended and wait for the milling cutter replacement to be completed, which undoubtedly increases production costs and time costs. Utility Model Content

[0004] The purpose of the present invention is to provide a milling cutter for punching and milling equipment that is easy to replace, so as to solve the problem proposed in the above background technology that replacing the milling cutter usually requires disassembling the entire milling cutter head and the rotary head, a process that is not only time-consuming but also labor-intensive.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A milling cutter for punching and milling equipment that is easy to replace, comprising a body;

[0007] A milling cutter replacement mechanism is located inside the machine body and is used to replace the milling cutter after it is worn. The milling cutter replacement mechanism includes a mounting seat, which is fixedly mounted on the surface of the machine body. A symmetrical clamping block is slidably connected to the mounting seat. A socket is provided inside the mounting seat, and further includes:

[0008] A connecting seat, which can be detachably mounted inside the mounting seat, a plug rod is fixedly mounted on the upper surface of the connecting seat, the plug rod is movably inserted inside the socket, a hemispherical block is fixedly mounted on the end of the plug rod, a moving block is slidably connected to the surface of the plug rod, and a cutter head is fixedly mounted on the lower surface of the connecting seat.

[0009] Preferably, a symmetrical clamping block is slidably connected inside the socket, the clamping block is movably fitted with the lower surface of the hemispherical block, and the clamping block is movably fitted with the surface of the moving block.

[0010] Preferably, a limit block is fixedly installed on the surface of the insertion rod, the moving block is slidably connected between the limit block and the hemispherical block, a moving block groove is opened inside the hemispherical block, and the moving block is slidably connected inside the moving block groove.

[0011] Preferably, one side of the card block is fixedly connected to a pull rod, a symmetrical slide groove is opened inside the mounting seat, the pull rod and the card block are both slidably connected inside the slide groove, a fixed block is fixedly installed inside the slide groove, a first spring is fixedly installed on the surface of the fixed block, the other end of the first spring is fixedly connected to one side of the card block, one end of the pull rod passes through the interior of the first spring and extends to the outside of the mounting seat, and a pin is movably inserted into the end of the pull rod extending to the outside of the mounting seat.

[0012] Preferably, a docking hole is provided on the lower surface of the mounting seat, the connecting seat is movably inserted inside the docking hole, a plurality of positioning columns are fixedly installed on the surface of the docking hole, a plurality of positioning holes are provided on the surface of the connecting seat, the positioning columns are movably inserted inside the positioning holes, the length of the positioning holes is greater than the length of the positioning columns, a plurality of second springs are fixedly installed on the surface of the docking hole, the positioning columns pass through the interior of the second spring, and the upper surface of the connecting seat is movably fitted with one end of the second spring.

[0013] Preferably, the milling cutter replacement mechanism further includes a motor, the output end of the motor is in transmission connection with the surface of the mounting seat, and the surface of the cutter head is provided with a chip removal groove, which is distributed in a threaded shape.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is provided with a mounting seat and a connecting seat. When the milling cutter needs to be replaced, the pin inside the pull rod is pulled out, and the connecting seat continues to move upward into the socket. At this time, the upper surface of the moving block contacts the surface of the clamping block, and the clamping block is squeezed by the moving block and retracted into the inside of the slide groove. When the moving block moves above the clamping block, the clamping block pops out under the action of the first spring, and at the same time squeezes the moving block upward to form a whole with the hemispherical block. The surface of the moving block and the surface of the hemispherical block form an arc, which is convenient for the clamping block to slide out from the surface of the hemispherical block when the connecting seat moves downward, thereby facilitating the removal of the connecting seat as a whole. When replacing a new connecting seat and cutter head, the connecting seat is reinserted into the socket, and the clamping block again limits the hemispherical block. The cooperation of the positioning column and the positioning hole enables the connecting seat to remain stable, avoiding the need to disassemble the entire milling cutter head and the rotary head, saving time, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the milling cutter replacement mechanism of the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the milling cutter replacement mechanism of the present invention;

[0019] Figure 4 This is a schematic diagram of the connecting seat of the utility model;

[0020] Figure 5 This is an enlarged schematic diagram of the structure at point A of the utility model;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the milling cutter replacement mechanism of the present invention.

[0022] In the picture:

[0023] 1. Machine body; 2. Milling cutter replacement mechanism; 21. Mounting seat; 211. Socket; 212. Clamping block; 213. Pull rod; 214. Slide; 215. Fixed block; 216. First spring; 217. Latch; 218. Docking hole; 219. Positioning column; 201. Second spring; 202. Moving block slot; 22. Connecting seat; 221. Insert rod; 222. Hemispherical block; 223. Limiting block; 224. Moving block; 225. Positioning hole; 23. Cutter head; 231. Chip groove; 24. Motor. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] like Figure 1-6 As shown, the present application provides a milling cutter for a punching and milling device that is easy to replace, comprising a body 1;

[0027] The milling cutter replacement mechanism 2 is located inside the machine body 1 and is used to replace the milling cutter after it is worn. The milling cutter replacement mechanism 2 includes a mounting seat 21, which is fixedly mounted on the surface of the machine body 1. A symmetrical clamping block 212 is slidably connected to the mounting seat 21. A socket 211 is provided inside the mounting seat 21, and further includes:

[0028] The connecting seat 22 is detachably mounted inside the mounting seat 21. A rod 221 is fixedly mounted on the upper surface of the connecting seat 22. The rod 221 is movably inserted into the socket 211. A hemispherical block 222 is fixedly mounted on the end of the rod 221. A movable block 224 is slidably connected to the surface of the rod 221. A cutter head 23 is fixedly mounted on the lower surface of the connecting seat 22.

[0029] Specifically, such as Figure 3 As shown, a symmetrical clamping block 212 is slidably connected inside the socket 211, and the clamping block 212 is movably fitted with the lower surface of the hemispherical block 222, and the clamping block 212 is movably fitted with the surface of the moving block 224;

[0030] In this embodiment, through the provision of the clamping blocks 212 , when the hemispherical block 222 is inserted into the insertion hole 211 , the two clamping blocks 212 fit against the lower surface of the hemispherical block 222 to limit the hemispherical block 222 and prevent the hemispherical block 222 from moving downward.

[0031] Specifically, such as Figure 4 As shown, a limit block 223 is fixedly installed on the surface of the insertion rod 221, and a moving block 224 is slidably connected between the limit block 223 and the hemispherical block 222. A moving block groove 202 is opened inside the hemispherical block 222, and the moving block 224 is slidably connected inside the moving block groove 202;

[0032] In this embodiment: when the moving block 224 moves to the inside of the moving block groove 202 under the action of the clamping block 212 to form a whole with the hemispherical block 222, the clamping block 212 can slide off the surface of the hemispherical block 222, and the connecting seat 22 can be moved out of the inside of the mounting seat 21 as a whole. The outer diameter of the moving block 224 is slightly smaller than the outer diameter of the hemispherical block 222.

[0033] Specifically, such as Figure 5 As shown, one side of the clamping block 212 is fixedly connected to a pull rod 213, and a symmetrical sliding groove 214 is opened inside the mounting seat 21. The pull rod 213 and the clamping block 212 are slidably connected inside the sliding groove 214. A fixing block 215 is fixedly installed inside the sliding groove 214. A first spring 216 is fixedly installed on the surface of the fixing block 215. The other end of the first spring 216 is fixedly connected to one side of the clamping block 212. One end of the pull rod 213 passes through the interior of the first spring 216 and extends to the outside of the mounting seat 21. The end of the pull rod 213 extending to the outside of the mounting seat 21 is movably inserted with a latch 217.

[0034] In this embodiment: the pin 217 fixes the position of the pull rod 213, so that the block 212 can continuously fit with the lower surface of the hemispherical block 222, and through the cooperation of the first spring 216 and the fixing block 215, the pull rod 213 drives the block 212 to slide telescopically inside the slide groove 214.

[0035] Specifically, such as Figure 3 As shown, a docking hole 218 is formed on the lower surface of the mounting base 21, and the connecting base 22 is movably inserted into the docking hole 218. A plurality of positioning posts 219 are fixedly installed on the surface of the docking hole 218. A plurality of positioning holes 225 are formed on the surface of the connecting base 22, and the positioning posts 219 are movably inserted into the positioning holes 225. The length of the positioning holes 225 is greater than the length of the positioning posts 219. A plurality of second springs 201 are fixedly installed on the surface of the docking hole 218, and the positioning posts 219 pass through the interior of the second spring 201. The upper surface of the connecting base 22 is movably fitted with one end of the second spring 201.

[0036] In this embodiment: through the cooperation between the positioning column 219 and the positioning hole 225, the connecting seat 22 can rotate with the cutter head 23, and the second spring 201 on the surface of the positioning column 219 exerts an extrusion effect on the connecting seat 22, so that the connecting seat 22 will not be moved upward by external force during operation.

[0037] Specifically, such as Figure 4 As shown, the surface of the cutter head 23 is provided with a chip removal groove 231, and the chip removal groove 231 is distributed in a thread shape;

[0038] In this embodiment, the chip removal groove 231 guides and discharges the waste chips during milling.

[0039] The motor 24 has an output end in transmission connection with the surface of the mounting base 21;

[0040] In this embodiment, the motor 24 is started to drive the mounting base 21 to rotate, thereby driving the connecting base 22 and the cutter head 23 to rotate to perform the milling operation.

[0041] When the cutting tool 23 is to be replaced, the latch 217 inside the pull rod 213 is pulled out and the connecting seat 22 is pushed upward into the socket 211. At this time, the upper surface of the moving block 224 contacts the surface of the clamping block 212, and the clamping block 212 is squeezed and retracted into the inside of the slide groove 214. When the moving block 224 moves above the clamping block 212, the clamping block 212 pops out under the action of the first spring 216, and at the same time squeezes the moving block 224 upward to form a whole with the hemispherical block 22. The surface of the moving block 224 and the surface of the hemispherical block 222 form an arc, which is convenient for the connecting seat 22 to slide out from the surface of the hemispherical block 222 when the connecting seat 22 moves downward, thereby facilitating the removal of the connecting seat 22 as a whole. When replacing a new connecting seat 22 and the cutting tool head 23, the connecting seat 22 is reinserted into the socket 211, and the clamping block 212 again limits the hemispherical block 222, and the positioning column 219 is inserted into the corresponding positioning hole 225.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the spirit of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A milling cutter for a punching and milling device that is easy to replace, comprising a body (1), characterized in that ； A milling cutter replacement mechanism (2) is located inside the machine body (1) and is used for replacing the milling cutter after it is worn. The milling cutter replacement mechanism (2) includes a mounting seat (21), the mounting seat (21) is fixedly mounted on the surface of the machine body (1), a symmetrical clamping block (212) is slidably connected inside the mounting seat (21), a socket (211) is provided inside the mounting seat (21), and further includes: A connecting seat (22) is detachably mounted inside the mounting seat (21); an insert rod (221) is fixedly mounted on the upper surface of the connecting seat (22); the insert rod (221) is movably inserted into the inside of the socket (211); a hemispherical block (222) is fixedly mounted on the end of the insert rod (221); a moving block (224) is slidably connected to the surface of the insert rod (221); and a cutter head (23) is fixedly mounted on the lower surface of the connecting seat (22).

2. The easily replaceable milling cutter for punching and milling equipment according to claim 1, characterized in that: A symmetrical clamping block (212) is slidably connected inside the socket (211), the clamping block (212) is movably fitted with the lower surface of the hemispherical block (222), and the clamping block (212) is movably fitted with the surface of the moving block (224).

3. The easily replaceable milling cutter for punching and milling equipment according to claim 1, characterized in that: A limit block (223) is fixedly mounted on the surface of the insertion rod (221); the moving block (224) is slidably connected between the limit block (223) and the hemispherical block (222); a moving block groove (202) is provided inside the hemispherical block (222); and the moving block (224) is slidably connected inside the moving block groove (202).

4. The easily replaceable milling cutter for punching and milling equipment according to claim 2, characterized in that: One side of the clamping block (212) is fixedly connected with a pull rod (213), and a symmetrical sliding groove (214) is provided inside the mounting seat (21), and the pull rod (213) and the clamping block (212) are both slidably connected inside the sliding groove (214), and a fixed block (215) is fixedly installed inside the sliding groove (214), and a first spring (216) is fixedly installed on the surface of the fixed block (215), and the other end of the first spring (216) is fixedly connected to one side of the clamping block (212), and one end of the pull rod (213) passes through the interior of the first spring (216) and extends to the outside of the mounting seat (21), and a pin (217) is movably inserted into the end of the pull rod (213) extending to the outside of the mounting seat (21).

5. The easily replaceable milling cutter for punching and milling equipment according to claim 3, characterized in that: The lower surface of the mounting seat (21) is provided with a docking hole (218), the connecting seat (22) is movably inserted into the docking hole (218), a plurality of positioning columns (219) are fixedly installed on the surface of the docking hole (218), a plurality of positioning holes (225) are provided on the surface of the connecting seat (22), the positioning columns (219) are movably inserted into the positioning holes (225), the length of the positioning holes (225) is greater than the length of the positioning columns (219), a plurality of second springs (201) are fixedly installed on the surface of the docking hole (218), the positioning columns (219) pass through the interior of the second spring (201), and the upper surface of the connecting seat (22) is movably fitted with one end of the second spring (201).

6. The easily replaceable milling cutter for punching and milling equipment according to claim 1, characterized in that: The milling cutter replacement mechanism (2) further comprises a motor (24), the output end of the motor (24) being in transmission connection with the surface of the mounting seat (21), and a chip removal groove (231) being provided on the surface of the cutter head (23), wherein the chip removal groove (231) is distributed in a threaded shape.

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