Milling cutter with overheating protection function

Abstract

The utility model discloses a milling cutter with an overheating protection function, which comprises a support frame, a transmission rod, a milling cutter rod and an overheating protection mechanism, the support frame is fixed on an external machine tool, the transmission rod is vertically and rotatably connected on the support frame, the milling cutter rod is connected and locked at the bottom of the transmission rod, and the overheating protection mechanism is arranged on the support frame. The utility model has the beneficial effects that the transmission rod rotates to drive the driven rod to rotate, and the linkage rod is driven to link under the action of centrifugal force, so that the linkage barrel and the butt joint seat are driven to integrally slide on the transmission rod, the adjusting rod can be synchronously linked, and the driven rod drives the valve shifting rod and the sealing disc to rotate, so that the sealing disc is driven to rotate. And through the arrangement of the overheating protection mechanism, the interior of the flow guide pipe can be synchronously communicated and guided when the milling cutter rod rotates for milling, the situation that a valve switch needs to be manually adjusted is avoided, and time and labor are saved while simplicity and high efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to a milling cutter, in particular to a milling cutter with an overheating protection function, belonging to the technical field of milling cutters. Background Art

[0002] Milling cutters are cutting tools commonly used in milling machines or processing machines to perform milling operations (sometimes in other machine tools). They remove material through their fixed feed rate within the machine. At present, milling cutters have gradually been used in processing and production operations in various industries.

[0003] However, most of the existing milling cutters have various problems. For example, in a milling cutter with an overheating protection function disclosed in publication number CN216938606U, although the overheating protection function of the milling cutter is realized by setting an oil tank, a main pipeline and a secondary pipeline, in this technical solution and most of the current milling cutters, the cooling effect of the milling cutter is achieved by spraying external liquid onto the milling cutter. However, the liquid currently used for cooling is mostly diverted through a pipeline, and in order to control the opening and closing of the pipeline, a valve is generally provided on the pipeline. When the milling cutter is working, the valve is opened to spray the liquid, and when it is not working, the valve is closed. The valve needs to be manually adjusted, and the operation is cumbersome and time-consuming. Utility Model Content

[0004] The technical solution of the present utility model addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present utility model is to solve the above-mentioned shortcomings in the existing technology and to propose a milling cutter with overheating protection function.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A milling cutter with an overheat protection function comprises a support frame, a transmission rod, a milling cutter rod and an overheat protection mechanism, wherein the support frame is fixed to an external machine tool, the transmission rod is vertically rotatably connected to the support frame, the milling cutter rod is connected and locked to the bottom of the transmission rod, and the overheat protection mechanism is arranged on the support frame;

[0007] The overheating protection mechanism includes a linkage cylinder, a docking seat, a driven rod, a linkage rod and a guide unit. The docking seat is fixed to the bottom of the linkage cylinder, and the linkage cylinder and the docking seat are both slidably sleeved on the transmission rod. The driven rod is rotatably connected to the transmission rod, and two rods are cross-arranged. One end of the linkage rod is rotatably connected to the top of the driven rod, and the other end is rotatably connected to the docking seat.

[0008] As a further solution of the utility model: a strip-shaped convex block is arranged on the side wall of the transmission rod, a chute is arranged on the inner wall of the linkage cylinder, and the strip-shaped convex block is slidably fitted in the chute.

[0009] As a further solution of the utility model: a counterweight ball is fixed at the bottom of the driven rod.

[0010] As a further solution of the utility model: the flow guiding unit includes a fixing plate, an adjusting rod, a clamping plate, a passive rod, a flow guiding pipe, a valve lever and a sealing disc. The fixing plate is fixed on the lower surface of the top of the support frame. The center of the adjusting rod is rotatably connected to the fixing plate. The flow guiding pipe is fixed on one side of the support frame. The sealing disc is rotatably connected to the inner cavity of the flow guiding pipe through a rotating rod. One end of the valve lever is fixed to the rotating rod of the sealing disc, and the other end is rotatably connected to the passive rod. The top end of the passive rod is rotatably connected to the adjusting rod. The clamping plate with a U-shaped structure is fixed to the other end of the adjusting rod, and a convex block is arranged in the clamping plate. An annular notch is arranged on the linkage cylinder, and the convex block of the clamping plate is slidably clamped in the annular notch.

[0011] As a further solution of the utility model: a rolling ball is rotatably connected to the abutting end of the convex block of the clamping plate and the linkage cylinder, and the rolling ball abuts against the linkage cylinder.

[0012] As a further solution of the utility model: a spray pipe is coaxially fixed at one end of the flow guiding pipe, and the spray pipe is a bendable and shapeable flexible pipe.

[0013] The beneficial effects of the utility model are as follows:

[0014] In the utility model, the external coolant is guided through the arrangement of the flow guiding pipe, so that the coolant can be sprayed onto the surface of the milling cutter rod, thereby realizing the functions of cooling and overheat protection for the milling cutter rod. When overheat protection is carried out on the milling cutter rod, the rotation of the transmission rod drives the driven rod to rotate, and under the action of centrifugal force, the linkage rod is driven to move, thereby driving the linkage cylinder and the docking seat to slide on the transmission rod as a whole, so that the adjusting rod can be synchronously linked, and the valve lever and the sealing disc are driven to rotate through the passive rod, so that the inner cavity of the flow guiding pipe is penetrated, and thus the coolant can flow and spray out. Through the arrangement of the overheat protection mechanism, the inner part of the flow guiding pipe can be penetrated and guided synchronously when the milling cutter rod rotates and mills, avoiding manual adjustment of the valve switch, which is simple, efficient, time-saving and labor-saving. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the overheat protection mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the sealing disc and its connection structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the linkage cylinder and its connection structure of the utility model.

[0019] In the figure: 1. support frame, 2. transmission rod, 3. milling cutter rod, 4. overheat protection mechanism, 41. linkage cylinder, 42. docking seat, 43. driven rod, 44. linkage rod, 45. counterweight ball, 46. fixing plate, 47. adjustment rod, 48. clamping plate, 49. passive rod, 410. guide tube, 411. valve lever, 412. sealing disk, 5. injection pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0021] like Figures 1 to 4 As shown, a milling cutter with an overheat protection function includes a support frame 1, a transmission rod 2, a milling cutter rod 3 and an overheat protection mechanism 4. The support frame 1 is fixed to an external machine tool, the transmission rod 2 is vertically rotatably connected to the support frame 1, the milling cutter rod 3 is connected and locked to the bottom of the transmission rod 2, and the overheat protection mechanism 4 is provided on the support frame 1;

[0022] The overheat protection mechanism 4 includes a linkage cylinder 41, a docking seat 42, a driven rod 43, a linkage rod 44 and a guide unit. The docking seat 42 is fixed to the bottom of the linkage cylinder 41, and the linkage cylinder 41 and the docking seat 42 are both slidably sleeved on the transmission rod 2. The driven rod 43 is rotatably connected to the transmission rod 2 and two linkage rods are cross-arranged. One end of the linkage rod 44 is rotatably connected to the top of the driven rod 43, and the other end is rotatably connected to the docking seat 42. A strip-shaped protrusion is provided on the side wall of the transmission rod 2, and a slide groove is provided on the inner wall of the linkage cylinder 41, and the strip-shaped protrusion slides in the slide groove.

[0023] The diversion unit includes a fixed plate 46, an adjusting rod 47, a clamping plate 48, a passive rod 49, a diversion pipe 410, a valve lever 411 and a sealing disc 412. The fixed plate 46 is fixed to the lower surface of the top of the support frame 1. The center of the adjusting rod 47 is rotatably connected to the fixed plate 46. The diversion pipe 410 is fixed to one side of the support frame 1. The sealing disc 412 is rotatably connected to the inner cavity of the diversion pipe 410 through a rotating rod. One end of the valve lever 411 is fixed to the rotating rod of the sealing disc 412, and the other end is rotatably connected to the passive rod 49. The top end of the passive rod 49 is rotatably connected to the adjusting rod 47. The U-shaped clamping plate 48 is fixed to the other end of the adjusting rod 47, and a convex block is provided inside the clamping plate 48. An annular notch is provided on the linkage cylinder 41, and the convex block of the clamping plate 48 is slidably clamped in the annular notch.

[0024] In the present utility model, through the arrangement of the diversion pipe 410, the external coolant is diverted, so that the coolant can be sprayed onto the surface of the milling cutter bar 3, thereby realizing the functions of cooling and overheat protection for the milling cutter bar 3. When overheat protection is carried out on the milling cutter bar 3, the rotation of the transmission rod 2 drives the driven rod 43 to rotate, and under the action of centrifugal force, the linkage rod 44 is linked, and then the linkage cylinder 41 and the docking seat 42 as a whole slide on the transmission rod 2, so that the adjusting rod 47 can be synchronously linked, and the valve lever 411 and the sealing disc 412 are driven to rotate through the passive rod 49, so that the inner cavity of the diversion pipe 410 is penetrated, and then the coolant can flow and spray out. Through the arrangement of the overheat protection mechanism 4, the inside of the diversion pipe 410 can be penetrated and diverted synchronously when the milling cutter bar 3 rotates and mills, avoiding manual adjustment of the valve switch, which is simple, efficient, time-saving and labor-saving. Embodiment Two

[0025] As Figures 1 to 4 shown, in this embodiment, in addition to including all the technical features in Embodiment One, it further includes:

[0026] A counterweight ball 45 is fixed to the bottom of the driven rod 43. Through the arrangement of the counterweight ball 45, the bottom of the driven rod 43 can be forced to open when rotating.

[0027] A rolling ball is rotatably connected to the abutting end of the convex block of the clamping plate 48 and the linkage cylinder 41, and the rolling ball abuts against the linkage cylinder 41. The frictional resistance between the convex block and the linkage cylinder 41 is reduced through the rolling ball.

[0028] One end of the diversion pipe 410 is coaxially fixed with a spray pipe 5. The spray pipe 5 is a bendable and shaped flexible pipe. Through the arrangement of the spray pipe 5, the coolant can be directionally diverted and sprayed.

[0029] Working principle: When using the milling cutter, first place the workpiece to be processed at the bottom of the milling cutter rod 3, then connect the guide tube 410 with an external coolant guide device, and connect the transmission rod 2 to the external transmission mechanism, and drive the transmission rod 2 and the milling cutter rod 3 to rotate through the external transmission mechanism, and drive the driven rod 43 to rotate through the rotation of the transmission rod 2, and drive the linkage rod 44 to link under the action of centrifugal force, and then drive the linkage cylinder 41 and the docking seat 42 to slide on the transmission rod 2 as a whole, so that the adjusting rod 47 is synchronously linked, and the valve lever 411 and the sealing disk 412 are driven to rotate through the passive rod 49, so that the internal cavity of the guide tube 410 is connected, so that the coolant can circulate and spray out, and the milling cutter rod 3 can be cooled and protected from overheating.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A milling cutter with an overheat protection function, comprising a support frame (1), a transmission rod (2), a milling cutter rod (3) and an overheat protection mechanism (4), characterized in that: The support frame (1) is fixed on an external machine tool. The transmission rod (2) is vertically and rotatably connected to the support frame (1). The milling cutter rod (3) is connected and locked to the bottom of the transmission rod (2). The overheat protection mechanism (4) is arranged on the support frame (1). The overheat protection mechanism (4) includes a linkage cylinder (41), a docking seat (42), a driven rod (43), a linkage rod (44) and a flow guiding unit. The docking seat (42) is fixed to the bottom of the linkage cylinder (41), and both the linkage cylinder (41) and the docking seat (42) are slidably sleeved on the transmission rod (2). The driven rod (43) is rotatably connected to the transmission rod (2), and there are two driven rods (43) arranged in a cross shape. One end of the linkage rod (44) is rotatably connected to the top end of the driven rod (43), and the other end is rotatably connected to the docking seat (42).

2. The milling cutter with overheat protection function according to claim 1, characterized in that: A strip-shaped convex block is arranged on the side wall of the transmission rod (2). A chute is arranged on the inner wall of the linkage cylinder (41), and the strip-shaped convex block is slidably fitted in the chute.

3. The milling cutter with overheat protection function according to claim 1, characterized in that: A counterweight ball (45) is fixed to the bottom of the driven rod (43).

4. The milling cutter with overheat protection function according to claim 1, characterized in that: The flow guiding unit includes a fixing plate (46), an adjusting rod (47), a clamping plate (48), a passive rod (49), a flow guiding pipe (410), a valve lever (411) and a sealing disc (412). The fixing plate (46) is fixed to the lower surface of the top of the support frame (1). The center of the adjusting rod (47) is rotatably connected to the fixing plate (46). The flow guiding pipe (410) is fixed to one side of the support frame (1). The sealing disc (412) is rotatably connected to the inner cavity of the flow guiding pipe (410) through a rotating rod. One end of the valve lever (411) is fixed to the rotating rod of the sealing disc (412), and the other end is rotatably connected to the passive rod (49). The top end of the passive rod (49) is rotatably connected to the adjusting rod (47). The clamping plate (48) with a U-shaped structure is fixed to the other end of the adjusting rod (47), and a convex block is arranged in the clamping plate (48). An annular notch is arranged on the linkage cylinder (41), and the convex block of the clamping plate (48) is slidably clamped in the annular notch.

5. The milling cutter with overheat protection function according to claim 4, characterized in that: A rolling ball is rotatably connected to the abutting end of the convex block of the clamping plate (48) and the linkage cylinder (41), and the rolling ball abuts against the linkage cylinder (41).

6. The milling cutter with overheat protection function according to claim 4, characterized in that: One end of the flow guiding pipe (410) is coaxially fixed with a spray pipe (5), and the spray pipe (5) is a flexible hose that can be bent and shaped.

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