Chamfering tool special for medium-sized inner hole

Abstract

The utility model relates to the technical field of metal cutting, in particular to a special chamfering cutter for a medium-sized inner hole, which comprises a base, a transmission mechanism rotationally connected with the base, a chamfering mechanism arranged at the top end of the transmission mechanism, two replaceable mechanisms mounted on the chamfering mechanism, and a bolt in threaded connection with the transmission mechanism. The whole device is installed at a specific position through the base, the cutter bar is connected with the driving mechanism, the driving mechanism drives the cutter bar to rotate, the cutter bar drives the chamfering mechanism and the replaceable mechanism to rotate, a workpiece is chamfered through the blade, due to the fact that the blade makes contact with the workpiece, only the T-shaped sliding block can be abraded, and after the blade is abraded, the workpiece can be chamfered. When the chamfering mechanism is worn, the blade can slide out of the T-shaped sliding groove through the T-shaped sliding block, a new replaceable mechanism is replaced, the whole chamfering mechanism does not need to be replaced after the chamfering mechanism is worn, only the replaceable mechanism needs to be replaced, and the problem that an existing device can only be integrally discarded after the cutting edge is damaged, and resource waste is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting, in particular to a special chamfering cutter for medium-sized inner holes. Background Art

[0002] With the improvement of automation level of industrial equipment, the productivity of more and more industrial products has been greatly improved, which is accompanied by the increase of corresponding processing tools, resulting in a significant increase in tool costs.

[0003] Traditionally, alloy tools are used for chamfering inner holes, and the entire tool is made of alloy. Each tool requires a lot of grinding, which results in low productivity. Moreover, the entire alloy tool can only be discarded after the blade is worn, resulting in a lot of waste.

[0004] At present, there is an existing copper tube inner hole chamfering tool head (such as patent number: CN206028903U), which discloses a copper tube inner hole chamfering tool head, including a blade, characterized in that the blade is located on a conical tool body, and an oil storage groove is provided at the junction of the blade and the conical tool body, and the side wall of the oil storage groove is the side of the conical tool body. The oil storage groove and the conical tool body are cast as one piece. The blade and the conical tool body are combined into one piece by plasma spraying. The oil storage groove and the side are cast as one piece and are tangent to each other. The utility model is simple to manufacture. Through integral casting, the hardness of the blade part is enhanced, which realizes the rapid mass production and cost reduction effect of special tools, and enhances the cooling effect during operation.

[0005] However, during the implementation of the above technical solution, it was found that there are at least the following technical problems: although the existing device is easy to produce and has high strength through integral casting, it can only be discarded after the blade is damaged, which still causes resource waste. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a special chamfering cutter for medium-sized inner holes, which solves the technical problem that the existing device can only be discarded as a whole after the blade is damaged, which causes a waste of resources.

[0008] (II) Technical solution

[0009] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A chamfering cutter specially used for medium-sized inner holes comprises a base, the base is rotatably connected with a transmission mechanism, a chamfering mechanism is arranged on the top of the transmission mechanism, two replaceable mechanisms are installed on the chamfering mechanism, the transmission mechanism is threadedly connected with bolts, the transmission mechanism comprises a tool rod, the chamfering mechanism comprises a tool head, and the replaceable mechanism comprises a T-shaped slider.

[0011] Preferably, the knife rod is rotatably connected to the base, a plug bolt is fixedly connected to the top surface of the knife rod, four plug blocks are fixedly connected to the outer wall of the plug bolt, and a threaded hole is formed at one end of the plug bolt away from the knife rod.

[0012] Preferably, the outer wall of the cutter head is provided with two chamfered grooves, and T-shaped sliding grooves are provided in the two chamfered grooves.

[0013] Preferably: two T-shaped sliders are respectively slidably connected in the T-shaped slide groove, both T-shaped sliders are fixedly connected with blades, glue is sprayed on the connection between the T-shaped slider and the T-shaped slide groove, and one end of the blade away from the T-shaped slider protrudes out of the chamfered groove.

[0014] Preferably, an axial hole is provided at the axial center of the cutter head, and a cross-shaped groove is provided on one side of the cutter head close to the cutter rod, wherein the cross-shaped groove is in a cross shape.

[0015] Preferably, the cross-shaped groove is slidably connected to the four plug-in blocks, and the axial center hole is slidably sleeved to the plug-in bolt.

[0016] Preferably, a fixing ring is fixedly connected to the upper half of the axial hole formed in the cutter head.

[0017] Preferably, the bolt is integrally sleeved in the axial center hole, and the bolt passes through the fixing ring and is threadedly connected with the threaded hole.

[0018] (III) Beneficial effects

[0019] 1. Use a base to install the entire device at a specific position, connect the tool rod to the driving mechanism, the driving mechanism drives the tool rod to rotate, the tool rod drives the chamfering mechanism and the replaceable mechanism to rotate, and the workpiece is chamfered by the blade. Since the blade is in contact with the workpiece, only the T-shaped slider will produce wear. When the blade is worn, the blade can be slid out of the T-shaped slide groove through the T-shaped slider, and a new replaceable mechanism can be replaced. This makes it unnecessary to replace the entire chamfering mechanism after wear, but only the replaceable mechanism needs to be replaced, which solves the problem that the existing device can only be discarded as a whole after the blade is damaged, which will cause a waste of resources.

[0020] Second, the cutter head is a detachable and replaceable structure. By removing the bolt from the threaded hole, the chamfering mechanism as a whole can be separated from the transmission mechanism, the plug-in block can be separated from the cross groove, and the plug-in bolt can be detached from the axial hole. The chamfering mechanism as a whole can be replaced, so that the present application has the effect of quickly disassembling and installing the chamfering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0022] Figure 1 This is a side view of the overall structure of the device of the utility model;

[0023] Figure 2 This is a structural diagram of the overall separation state of the device of the utility model;

[0024] Figure 3 This is a structural diagram of the chamfering mechanism and the replaceable mechanism in the separated state of the utility model;

[0025] Figure 4 It is a half-section structural diagram of the transmission mechanism and chamfering mechanism of the utility model.

[0026] Legend: 1. Base; 2. Transmission mechanism; 3. Chamfering mechanism; 4. Replaceable mechanism; 5. Bolt; 201. Tool bar; 202. Plug-in block; 203. Plug-in bolt; 204. Threaded hole; 301. Tool head; 302. Axial hole; 303. Chamfering groove; 304. T-shaped slide groove; 305. Fixing ring; 306. Cross groove; 401. T-shaped slide block; 402. Blade. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a special chamfering tool for medium-sized inner holes, which effectively solves the problem that the existing device can only be discarded as a whole after the blade is damaged, resulting in a waste of resources.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the existing device can only be discarded as a whole after the blade is damaged, which will cause waste of resources. The overall idea is as follows:

[0029] In view of the problems existing in the prior art, the utility model provides a special chamfering tool for medium-sized inner holes, including a base 1, the base 1 is rotatably connected to a transmission mechanism 2, a chamfering mechanism 3 is arranged on the top of the transmission mechanism 2, the chamfering mechanism 3 is installed with two replaceable mechanisms 4, the transmission mechanism 2 is threadedly connected with a bolt 5, the transmission mechanism 2 includes a tool rod 201, the chamfering mechanism 3 includes a tool head 301, and the replaceable mechanism 4 includes a T-shaped slider 401.

[0030] The knife rod 201 is rotatably connected to the base 1 , a plug bolt 203 is fixedly connected to the top surface of the knife rod 201 , four plug blocks 202 are fixedly connected to the outer wall of the plug bolt 203 , and a threaded hole 204 is formed at one end of the plug bolt 203 away from the knife rod 201 .

[0031] The outer wall of the cutter head 301 is provided with two chamfered grooves 303 , and T-shaped sliding grooves 304 are provided in the two chamfered grooves 303 .

[0032] The two T-shaped sliders 401 are respectively slidably connected in the T-shaped slot 304 , and the two T-shaped sliders 401 are fixedly connected with a blade 402 . Glue is sprayed on the connection between the T-shaped slider 401 and the T-shaped slot 304 , and one end of the blade 402 away from the T-shaped slider 401 protrudes out of the chamfered slot 303 .

[0033] An axial hole 302 is provided at the axis of the cutter head 301 , and a cross groove 306 is provided on one side of the cutter head 301 close to the cutter rod 201 . The cross groove 306 is in a cross shape.

[0034] The cross-shaped groove 306 is slidably connected to the four plug-in blocks 202 , and the axial hole 302 is slidably sleeved to the plug-in bolt 203 .

[0035] The upper half of the axial hole 302 formed in the cutter head 301 is fixedly connected with a fixing ring 305 .

[0036] The bolt 5 is integrally sleeved in the axial hole 302 , and the bolt 5 passes through the fixing ring 305 and is threadedly connected with the threaded hole 204 .

[0037] The base 1 is used to install the entire device at a specific position, and the tool rod 201 is connected to the driving mechanism. The driving mechanism drives the tool rod 201 to rotate, and the tool rod 201 drives the chamfering mechanism 3 and the replaceable mechanism 4 to rotate, and the workpiece is chamfered by the blade 402. Since the blade 402 is in contact with the workpiece, only the T-shaped slider 401 will be worn. When the blade 402 is worn, the blade 402 can be slid out of the T-shaped slide groove 304 through the T-shaped slider 401, and a new replaceable mechanism 4 can be replaced. Therefore, the present application does not need to replace the entire chamfering mechanism 3 after wear, but only needs to replace the replaceable mechanism 4, which solves the problem that the existing device can only be discarded as a whole after the blade is damaged, which will cause a waste of resources.

[0038] Working principle:

[0039] In the first step, the base 1 is used to install the entire device at a specific position. The tool rod 201 is connected to the driving mechanism. The driving mechanism drives the tool rod 201 to rotate. The tool rod 201 drives the chamfering mechanism 3 and the replaceable mechanism 4 to rotate. The workpiece is chamfered by the blade 402. Since the blade 402 is in contact with the workpiece, only the T-shaped slider 401 will produce wear. When the blade 402 is worn, the blade 402 can be slid out of the T-shaped slide groove 304 through the T-shaped slider 401, and a new replaceable mechanism 4 can be replaced.

[0040] In the second step, when the replaceable mechanism 4 is damaged and there is no replacement accessory, the cutter head 301 can be used to chamfer the workpiece. The cutter head 301 is also a detachable and replaceable structure. When the cutter head 301 is worn, the bolt 5 is removed from the threaded hole 204, the chamfering mechanism 3 as a whole can be separated from the transmission mechanism 2, the plug-in block 202 is separated from the cross groove 306, and the plug-in bolt 203 is detached from the axial hole 302, and the chamfering mechanism 3 as a whole can be replaced.

[0041] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A medium-sized inner hole chamfering tool, comprising a base (1), characterized in that: The base (1) is rotatably connected to a transmission mechanism (2), a chamfering mechanism (3) is provided at the top of the transmission mechanism (2), two replaceable mechanisms (4) are installed on the chamfering mechanism (3), and a bolt (5) is threadedly connected to the transmission mechanism (2); The transmission mechanism (2) comprises a cutter rod (201), the chamfering mechanism (3) comprises a cutter head (301), and the replaceable mechanism (4) comprises a T-shaped slider (401).

2. A medium-sized inner hole special chamfering cutter as claimed in claim 1, characterized in that: The knife rod (201) is rotatably connected to the base (1); a plug bolt (203) is fixedly connected to the top surface of the knife rod (201); four plug blocks (202) are fixedly connected to the outer wall of the plug bolt (203); and a threaded hole (204) is formed at one end of the plug bolt (203) away from the knife rod (201).

3. A medium-sized inner hole special chamfering cutter as claimed in claim 1, characterized in that: The outer wall of the cutter head (301) is provided with two chamfered grooves (303), and a T-shaped sliding groove (304) is provided in each of the two chamfered grooves (303).

4. A medium-sized inner hole special chamfering cutter as claimed in claim 3, characterized in that: The two T-shaped slide blocks (401) are respectively slidably connected in the T-shaped slide groove (304), and the two T-shaped slide blocks (401) are both fixedly connected with a blade (402), and one end of the blade (402) away from the T-shaped slide block (401) protrudes from the chamfered groove (303).

5. A medium-sized inner hole special chamfering cutter as claimed in claim 2, characterized in that: An axial hole (302) is provided at the axis of the cutter head (301), and a cross-shaped groove (306) is provided on a side of the cutter head (301) close to the cutter rod (201), wherein the cross-shaped groove (306) is in a cross shape.

6. A medium-sized inner hole special chamfering cutter as claimed in claim 5, characterized in that: The cross-shaped groove (306) is slidably connected to the four plug-in blocks (202), and the axial center hole (302) is slidably sleeved to the plug-in bolt (203).

7. A medium-sized inner hole special chamfering cutter as claimed in claim 1, characterized in that: The upper half of the axial center hole (302) formed in the cutter head (301) is fixedly connected to a fixing ring (305).

8. A medium-sized inner hole special chamfering cutter as claimed in claim 7, characterized in that: The bolt (5) is integrally sleeved in the axial center hole (302), and the bolt (5) passes through the fixing ring (305) and is threadedly connected to the threaded hole (204).

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