CN218051005U - Automatic welding device for multi-edge disc-shaped milling cutter - Google Patents

Abstract

The utility model discloses an automatic welding device for a multi-edged disc-shaped milling cutter, which belongs to the field of automatic welding equipment for milling cutters and solves the problem that the fastening mechanism of the existing welding device is difficult to clamp a disc-shaped knife handle. It includes a workbench, the top of the workbench is provided with a feeding mechanism for conveying the handle of the milling cutter to the welding mechanism, and the output end of the feeding mechanism is provided with a fixing mechanism for fixing the handle of the milling cutter, The fixed mechanism includes an air pump and a fixed shaft, the air pump is fixed at the output end of the feeding mechanism, the fixed shaft is installed at the air outlet of the air pump through a bearing, and an air passage communicated with the air outlet of the air pump is provided in the fixed shaft. The end of the fixed shaft away from the air pump is provided with a plurality of radially uniformly arranged expansion assemblies, and the outer wall of the fixed shaft on one side of the expansion assembly is provided with a positioning plate. The automatic welding device for the multi-edged disc milling cutter of the utility model can quickly fix the handle of the disc milling cutter and effectively improve the clamping stability.

Description

Multi-blade disc milling cutter automatic welding device

technical field

The utility model relates to the field of automatic welding machines for milling cutters, in particular to an automatic welding device for multi-edged disc milling cutters.

Background technique

A milling cutter is a rotating tool with one or more teeth (cutting edges) for milling operations. When working, each knife tooth cuts off the allowance of the workpiece intermittently in turn. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces, and cut off workpieces on milling machines. They generally include a handle and a blade, and the blade is fixed on the handle by welding. The multi-blade disc milling cutter is one of the milling cutters. As shown in Figure 1, it is characterized in that the handle a is disc-shaped, and multiple blades b are located on the outer edge of the handle a. The fixing method of the blade b is also Fix by welding. With the continuous advancement of science and technology, the welding of milling cutters has become relatively mature and has a high degree of automation. For example, in the prior art with the application number of CN202010778498.X, a milling cutter welding machine is disclosed, which uses fastening The mechanism clamps the handle of the milling cutter, and then moves the handle with the pre-pressed blade to the welding station, and the welding mechanism welds and fixes the joint between the blade and the handle, realizing automatic welding throughout the process. But the fastening mechanism in this welding machine can only clamp the cylindrical tool handle, and it is difficult to clamp and fix the disc-shaped milling cutter with disc-shaped tool handle. Therefore, it is urgent to develop and design a Automatic welding device for shape milling cutter.

Utility model content

The technical problem to be solved by the utility model is aimed at the above-mentioned deficiencies of the prior art, and its purpose is to provide an automatic welding device for a multi-blade disc milling cutter, which can quickly fix the handle of the disc milling cutter and effectively improve the clamping stability.

The technical scheme of the utility model is as follows: the multi-blade disc milling cutter automatic welding device includes a workbench, the top side of the workbench is provided with a welding mechanism, and the top of the workbench is provided with a The knife handle is delivered to the feeding mechanism at the welding mechanism, and the output end of the feeding mechanism is provided with a fixing mechanism for fixing the knife handle of the milling cutter. The fixing mechanism includes an air pump and a fixed shaft, and the air pump is fixed on the feeding At the output end of the mechanism, the fixed shaft is installed at the air outlet of the air pump through a bearing, and an air passage connected with the air outlet of the air pump is provided in the fixed shaft, and the end of the fixed shaft far away from the air pump is provided with A plurality of expansion assemblies evenly arranged in the radial direction, the outer wall of the fixed shaft on one side of the expansion assembly is provided with a positioning plate, the expansion assembly includes a push rod and a compression spring, and the push rod is radially inserted into the fixed shaft In some sliding holes, there are mounting cavities in the fixed shafts on both sides of the sliding hole, sliding plates are fixed on both sides of the push rod, and the sliding plates are slidably installed in the mounting cavity, and the sliding plate and the mounting cavity A compression spring is connected between the tops of the inner walls, the top end of the push rod is located inside the sliding hole, the bottom end of the push rod extends into the air channel, and the air channel is provided with a squeezeable push rod that can move radially outward The piston assembly; the output end of the feeding mechanism is also provided with a rotating mechanism for driving the fixed shaft to rotate.

As a further improvement, the rotating mechanism includes a fixed box, a first motor, a driving gear and a driven gear, the fixed box is fixed on the output end of the feeding mechanism, and the first motor is fixed on the top of the fixed box , the driving gear is connected to the output end of the first motor, the fixed shaft passes through the fixed box and is connected with the penetrating part through a bearing, and the driven gear is fixedly sleeved on the fixed shaft in the fixed box, so The above-mentioned driving gear moves through the fixed box and is meshed with the driven gear.

Further, the feeding mechanism includes a second motor, a screw rod and a sliding seat, the second motor is fixed on the top of the workbench, and the output end of the second motor is connected to the screw rod, and the sliding seat It is threadedly connected with the screw mandrel, and a guiding mechanism is also provided between the sliding seat and the workbench, and the air pump and the fixing box are all fixed on the top of the sliding seat.

Further, the guide mechanism includes guide rails arranged symmetrically on the top surface of the workbench, and the bottom of the sliding seat is slidably installed on the guide rails.

Further, a bearing seat is provided on the side of the workbench away from the second motor, and the screw rod is connected to the bearing seat through a bearing.

Further, the piston assembly includes a piston and a conical column, a plurality of sealing rings are embedded between the piston and the inner wall of the air passage, the largest end of the conical column is connected to one end of the piston, and the smallest end is located at the end of the pusher. side of the rod.

Further, the bottom end of the push rod is movably embedded with balls, and the lowest point of the balls is located above the smallest end surface of the tapered column.

Beneficial effect

Compared with the prior art, the utility model has the following advantages:

The multi-blade disc milling cutter automatic welding device of the utility model is provided with a plurality of evenly arranged expansion components on the fixed shaft, and when the disc-shaped milling cutter handle is clamped, the tool handle is sleeved on the fixed shaft Up until the side of the tool handle touches the positioning plate, then start the air pump to pump air into the air passage to push the piston assembly to move along the air passage. After the tapered column of the piston assembly contacts the push rod, it starts to squeeze the push rod to move radially outward. When the push rod is pressed against the inner wall of the shaft hole of the handle, the handle of the disc-shaped milling cutter can be quickly fixed, and the clamping stability can be effectively improved; after the welding is completed, the air pump drives the piston assembly to move, and the push rod The milling cutter can be removed under the elastic force of the compression spring, and the assembly and disassembly are very convenient.

Description of drawings

Fig. 1 is the partial structure schematic diagram of multi-edged disk milling cutter in the prior art;

Fig. 2 is the structural representation of the utility model;

Fig. 3 is the enlarged schematic diagram of the structure at place A in Fig. 2;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3 .

Among them: 1-working table, 2-welding mechanism, 3-rotating mechanism, 4-fixing mechanism, 5-fixed box, 6-first motor, 7-driving gear, 8-driven gear, 9-second motor, 10-screw, 11-sliding seat, 12-guide rail, 13-bearing seat, 401-air pump, 402-fixed shaft, 403-air channel, 404-positioning plate, 405-push rod, 406-compression spring, 407- Mounting chamber, 408-slide, 409-piston, 410-tapered post, 411-sealing ring, 412-ball, a-handle, b-blade.

detailed description

The utility model will be further described below in conjunction with the specific embodiments in the accompanying drawings.

Referring to Figures 2-4, the multi-blade disc milling cutter automatic welding device of the present invention includes a workbench 1, which is equivalent to the machine platform of the welding machine in the prior art, and a welding mechanism 2 is provided on the top side of the workbench 1, Welding mechanism 2 is a welding device in the prior art, and will not be described in detail here. A feeding mechanism for transporting the handle of a milling cutter to welding mechanism 2 is provided on the top of workbench 1, and the output end of the feeding mechanism is provided with There is a fixing mechanism 4 for fixing the handle of the milling cutter, the fixing mechanism 4 includes an air pump 401 and a fixed shaft 402, wherein the air pump 401 is fixed at the output end of the feeding mechanism, and the fixed shaft 402 is installed at the air outlet of the air pump 401 through a bearing , so that the fixed shaft 402 can rotate relative to the air pump 401, which is convenient for subsequent driving of the tool handle to rotate and switch the welding position. An air passage 403 communicating with the air outlet of the air pump 401 is provided in the fixed shaft 402, and the end of the fixed shaft 402 away from the air pump 401 There are multiple radially evenly arranged expansion assemblies. The outer wall of the fixed shaft 402 on one side of the expansion assembly is provided with a positioning plate 404 for positioning the handle so that the shaft hole can be aligned with the expansion assembly. The expansion assembly includes a push rod 405 and a compression spring 406, wherein the push rod 405 is radially plugged into the slide hole provided by the fixed shaft 402, an installation cavity 407 is opened in the fixed shaft 402 on both sides of the slide hole, and a slide plate is fixed on both sides of the push rod 405 408, the slide plate 408 is slidably installed in the installation cavity 407, and a compression spring 406 is connected between the slide plate 408 and the top of the inner wall of the installation cavity 407, and the compression spring 406 presses the slide plate 408 in a natural state, so that the top of the push rod 405 is located in the slide hole Inside, the bottom end of the push rod 405 extends into the air passage 403, and a piston assembly that can squeeze the push rod 405 to move radially outward is provided in the air passage 403; the piston assembly includes a piston 409 and a tapered column 410, wherein A plurality of sealing rings 411 are embedded between the piston 409 and the inner wall of the air passage 403, and the sealing rings 411 seal the gap between the piston 409 and the air passage 403. The largest end of the tapered column 410 is connected to one end of the piston 409, and the smallest end Located on one side of the push rod 405.

The multi-blade disc milling cutter automatic welding device of the present utility model, by setting a plurality of uniformly arranged expansion components on the fixed shaft 402, when clamping the disc milling cutter handle, the tool handle is sleeved on the fixed On the shaft 402 until the side of the tool handle contacts the positioning plate 404, then start the air pump 401 to pump air into the air passage 403 to push the piston assembly to move along the air passage 403, and the tapered column 410 of the piston assembly contacts the push rod 405 and starts to squeeze The push rod 405 moves radially outward. At this time, the push rod 405 presses against the inner wall of the shaft hole of the handle, which can quickly fix the handle of the disc-shaped milling cutter and effectively improve the clamping stability; after the welding is completed, the air pump 401 draws air to drive the piston assembly to move, and now the push rod 405 resets under the elastic force of the compression spring 406, and the milling cutter can be taken off, which is very convenient for assembly and disassembly.

Preferably, the output end of the feeding mechanism is also provided with a rotating mechanism 3 for driving the fixed shaft 402 to rotate. This rotating mechanism 3 comprises fixed box 5, the first motor 6, driving gear 7 and driven gear 8, and wherein, fixed box 5 is fixed on the output end of feeding mechanism, and first motor 6 is fixed on the top of fixed box 5, and driving gear 7 is connected to the output end of the first motor 6, the fixed shaft 402 runs through the fixed box 5 and is connected with the penetrating part through bearings, the driven gear 8 is fixedly sleeved on the fixed shaft 402 in the fixed box 5, and the driving gear 7 moves through and is fixed The box 5 is meshed with the driven gear 8. During the welding process, the first motor 6 drives the fixed shaft 402 to rotate, and then drives the knife handle to rotate, so that the welding position can be switched.

Preferably, the feeding mechanism includes a second motor 9, a screw mandrel 10 and a sliding seat 11, wherein the second motor 9 is fixed on the top of the workbench 1, and the output end of the second motor 9 is connected to the screw mandrel 10, and the sliding seat 11 is connected to the The screw mandrel 10 is threadedly connected, and a guiding mechanism is also provided between the sliding seat 11 and the workbench 1 . The air pump 401 and the fixing box 5 are all fixed on the top of the sliding seat 11 . The guide mechanism includes guide rails 12 symmetrically arranged on the top surface of the workbench 1 , and the bottom of the sliding seat 11 is slidably mounted on the guide rails 12 . Before welding, the second motor 9 works to drive the screw rod 10 to rotate, so that the sliding seat 11 moves to the position of the welding mechanism 2, and then drives the fixing mechanism and the rotating mechanism to move, so that the knife handle moves to the welding station corresponding to the welding mechanism 2 .

Preferably, a bearing seat 13 is further provided on the side of the workbench 1 away from the second motor 9 , wherein the screw rod 10 is connected to the bearing seat 13 through a bearing, so as to improve the rotation stability of the screw rod 10 .

Preferably, a ball 412 is movably embedded at the bottom of the push rod 405. The lowest point of the ball 412 is located above the smallest end face of the tapered column 410. The contact between the ball 412 and the tapered column 410 can reduce the frictional force, so that the cone The shape column 410 extrudes the push rod 405 more smoothly.

The above is only the preferred embodiment of the present utility model, it should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present utility model, some deformations and improvements can also be made, and these will not affect the present utility model. Effects of utility model implementation and practicability of patents.

Claims (7)

1. An automatic welding device for multi-blade disc milling cutters, comprising a workbench (1), a welding mechanism (2) is provided on the top side of the workbench (1), and a welding mechanism (2) is provided on the top of the workbench (1). The knife handle of milling cutter is conveyed to the feeding mechanism at welding mechanism (2), it is characterized in that, the output end of described feeding mechanism is provided with the fixing mechanism (4) that is used for fixing the knife holder of milling cutter, and described fixing Mechanism (4) comprises air pump (401) and fixed shaft (402), and described air pump (401) is fixed on the output end of feeding mechanism, and described fixed shaft (402) is installed in the air outlet of air pump (401) through bearing In the fixed shaft (402), there is an air channel (403) connected with the air outlet of the air pump (401), and the end of the fixed shaft (402) away from the air pump (401) is provided with a plurality of diameters. To the uniformly arranged expansion assembly, the outer wall of the fixed shaft (402) on one side of the expansion assembly is provided with a positioning plate (404), and the expansion assembly includes a push rod (405) and a compression spring (406). The rod (405) is radially inserted into the sliding hole provided by the fixed shaft (402), and the fixed shaft (402) on both sides of the sliding hole is provided with an installation cavity (407), and the push rod (405) Sliding plates (408) are fixed on both sides, and the sliding plate (408) is slidably installed in the installation cavity (407), and a compression spring (406) is connected between the sliding plate (408) and the top of the inner wall of the installation cavity (407) , the top end of the push rod (405) is located inside the sliding hole, the bottom end of the push rod (405) extends into the air channel (403), and the air channel (403) is provided with a squeezeable push rod (405) A piston assembly that moves radially outward; the output end of the feeding mechanism is also provided with a rotating mechanism (3) for driving the fixed shaft (402) to rotate. 2. The multi-blade disc milling cutter automatic welding device according to claim 1, characterized in that, the rotating mechanism (3) comprises a fixed box (5), a first motor (6), a driving gear (7) And driven gear (8), described fixed box (5) is fixed on the output end of feeding mechanism, and described first motor (6) is fixed on the top of fixed box (5), and described driving gear (7) ) is connected to the output end of the first motor (6), the fixed shaft (402) runs through the fixed box (5) and is connected with the penetrating part through a bearing, and the driven gear (8) is fixedly sleeved in the fixed box On the fixed shaft (402) in (5), the driving gear (7) moves through the fixed box (5) and meshes with the driven gear (8). 3. multi-blade disc milling cutter automatic welding device according to claim 2, is characterized in that, described feeding mechanism comprises second motor (9), screw mandrel (10) and sliding seat (11), described The second motor (9) is fixed on the top of the workbench (1), and the output end of the second motor (9) is connected to the screw mandrel (10), and the sliding seat (11) is connected to the screw mandrel (10) Threaded connection, a guide mechanism is also provided between the sliding seat (11) and the workbench (1), and the air pump (401) and the fixing box (5) are all fixed on the top of the sliding seat (11). 4. The multi-blade disc milling cutter automatic welding device according to claim 3, characterized in that, said guide mechanism comprises guide rails (12) symmetrically arranged on the top surface of the workbench (1), and said sliding seat (11) Bottom is slidingly installed on the guide rail (12). 5. The multi-blade disc milling cutter automatic welding device according to claim 3, characterized in that, a bearing seat (13) is also provided on the side of the workbench (1) away from the second motor (9) , the screw rod (10) is connected with the bearing seat (13) through a bearing. 6. The multi-blade disc milling cutter automatic welding device according to any one of claims 1-5, characterized in that, the piston assembly comprises a piston (409) and a tapered column (410), and the A plurality of seal rings (411) are embedded between the piston (409) and the inner wall of the air channel (403), the largest end of the tapered column (410) is connected to the end of the piston (409), and the smallest end is located on the push rod (405). ) side. 7. The multi-blade disc milling cutter automatic welding device according to claim 6, characterized in that, the bottom end of the push rod (405) is movably embedded with a ball (412), and the lowest point of the ball (412) is The point is located above the smallest end face of the tapered column (410).

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