Milling cutter with milling cutter edge convenient to replace

Abstract

The utility model relates to the technical field of milling cutters, in particular to a milling cutter with a milling blade convenient to replace, which comprises a milling cutter bar and a blade body, an inserting groove is arranged in the middle of the upper end of the milling cutter bar, and positioning grooves are arranged on the front portion of the inner wall of the inserting groove and the rear portion of the inner wall of the inserting groove. Limiting holes are formed in the lower left portion and the lower right portion of the outer surface of the milling cutter bar correspondingly, the lower end of the blade body is fixedly connected with an inserting rod, positioning strips are fixedly connected to the front portion and the rear portion of the outer surface of the inserting rod correspondingly, the lower end of the inserting rod is fixedly connected with a connecting block, and movable grooves are formed in the inner left portion and the inner right portion of the connecting block correspondingly. The adjacent inner walls of the two movable grooves are fixedly connected with springs. According to the milling cutter with the milling cutter edge convenient to replace, the cutter edge body is convenient to install, when the cutter edge body is abraded, the cutter edge body is convenient to disassemble and replace subsequently, and the installation efficiency of the cutter edge body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter which is convenient for replacing the milling cutter blade. Background Art

[0002] CNC milling cutters are rotary tools with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used for processing steps, grooves, forming surfaces and cutting workpieces, and have been widely used in processing in various fields. During the use of existing milling cutters, the milling cutter blades are easily worn out after long-term use. The milling cutter blades are generally installed with the milling cutter rod through threaded connections, which makes it difficult to disassemble and replace the milling cutter blades. The disassembly process will consume a lot of time. Therefore, we have launched a new milling cutter that is easy to replace the milling cutter blade. Utility Model Content

[0003] The main purpose of the utility model is to provide a milling cutter with an easy-to-replace milling cutter blade, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A milling cutter which is convenient for replacing the milling cutter blade comprises a milling cutter rod and a blade body, a slot is provided in the middle part of the upper end of the milling cutter rod, a positioning slot is provided at the front part of the inner wall of the slot and the rear part of the inner wall of the slot, a limiting hole is provided at the lower left part and the lower right part of the outer surface of the milling cutter rod, a plug rod is fixedly connected to the lower end of the blade body, a positioning strip is fixedly connected to the front part and the rear part of the outer surface of the plug rod, a connecting block is fixedly connected to the lower end of the plug rod, a movable slot is provided at the left and right parts of the connecting block, springs are fixedly connected to the inner walls of the two adjacent movable slots, one end of the two springs away from the inner wall of the movable slot is fixedly connected to the limiting block, and one end of the two limiting blocks away from the spring is fixedly connected to the limiting rod.

[0006] Preferably, the two limiting holes are communicated with the interior of the slot, and the diameter of the insertion rod is the same as the diameter of the slot.

[0007] Preferably, the insertion rod is connected through the slot, and the two positioning bars are connected through the two positioning grooves respectively.

[0008] Preferably, the lower end of the blade body is tightly fitted with the milling cutter rod, and the lower end of the connecting block is tightly fitted with the lower groove wall of the slot.

[0009] Preferably, the two limit blocks are movably connected to the inner walls of the two movable grooves respectively, and the two limit rods are respectively inserted and connected to the two movable grooves.

[0010] Preferably, one end of the two limiting rods away from the limiting block is respectively inserted and connected with the two limiting holes.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By pressing the two limit rods, the two limit rods squeeze the two springs through the two limit blocks respectively, and the two limit rods shrink into the two movable grooves respectively, and then the insertion rod under the blade body is inserted into the slot, so that the connecting block moves downward in the slot. When the limit rods on the left and right sides of the connecting block move to the two limit holes opened on the outer surface of the milling cutter rod, the two limit rods pop out from the two limit holes respectively under the elastic reset of the springs, so that the blade body is convenient for installation. At the same time, when the blade body is worn, it is also convenient for subsequent disassembly and replacement;

[0013] 2. During the installation of the blade body and the milling cutter rod, when the insert rod is inserted into the slot, the two positioning strips are respectively inserted into the two positioning slots to assist in positioning the connecting block, so that the limit rods on both sides of the connecting block always remain corresponding to the vertical position of the two limit holes, so that when the connecting block moves downward in the slot, the two limit rods always remain close to the two limit holes in the vertical direction, so that the two limit rods can quickly pop out of the two limit holes, which can improve the efficiency of the installation of the blade body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the milling cutter that facilitates the replacement of the milling cutter blade of the utility model;

[0015] Figure 2 It is a schematic diagram of the planar structure of the milling cutter for facilitating the replacement of the milling cutter blade of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembly structure of the milling cutter for easy replacement of the milling cutter blade of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the internal structure of the connecting block of the milling cutter which is convenient for replacing the milling cutter blade.

[0018] In the figure: 1. milling cutter bar; 2. blade body; 3. slot; 4. positioning slot; 5. limit hole; 6. insert rod; 7. positioning strip; 8. connecting block; 9. movable slot; 10. spring; 11. limit block; 12. limit rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A milling cutter for facilitating replacement of a milling cutter blade comprises a milling cutter rod 1 and a blade body 2, a slot 3 is provided in the middle of the upper end of the milling cutter rod 1, positioning slots 4 are provided at the front and rear of the inner wall of the slot 3, limiting holes 5 are provided at the lower left and lower right of the outer surface of the milling cutter rod 1, an insert rod 6 is fixedly connected to the lower end of the blade body 2, a positioning strip 7 is fixedly connected to the front and rear of the outer surface of the insert rod 6, a connecting block 8 is fixedly connected to the lower end of the insert rod 6, movable slots 9 are provided at the left and right inner parts of the connecting block 8, springs 10 are fixedly connected to the inner walls of adjacent slots 9, two springs 10 are fixedly connected to limiting blocks 11 at one end away from the inner wall of the movable slot 9, and two limiting blocks 11 are fixedly connected to limiting rods 12 at one end away from the springs 10.

[0024] In this embodiment, the two limiting holes 5 are both connected to the inside of the slot 3, the diameter of the insertion rod 6 is the same as the diameter of the slot 3, the insertion rod 6 is connected through the slot 3, the two positioning strips 7 are connected through the two positioning grooves 4 respectively, the lower end of the blade body 2 is tightly fitted with the milling cutter rod 1, and the lower end of the connecting block 8 is tightly fitted with the lower groove wall of the slot 3. During the installation of the blade body 2 and the milling cutter rod 1, when the insertion rod 6 is inserted into the slot 3, the two positioning strips 7 are respectively inserted into the two positioning grooves 4 to assist in positioning the connecting block 8, so that the two limiting rods 12 can be quickly popped out of the two limiting holes 5, which can improve the efficiency of the installation of the blade body 2.

[0025] In this embodiment, the two limit blocks 11 are movably connected to the inner walls of the two movable grooves 9, respectively, the two limit rods 12 are respectively inserted and connected to the two movable grooves 9, and the ends of the two limit rods 12 away from the limit blocks 11 are respectively inserted and connected to the two limit holes 5. The two limit rods 12 are respectively popped out from the two limit holes 5 under the elastic reset of the spring 10, so that the blade body 2 is convenient to install. At the same time, when the blade body 2 is worn, it is also convenient to disassemble and replace it later.

[0026] It should be noted that the utility model is a milling cutter for facilitating replacement of the milling cutter blade. During use, by pressing the two limit rods 12, the two limit rods 12 squeeze the two springs 10 through the two limit blocks 11 respectively, and at the same time, the two limit rods 12 are respectively retracted into the two movable grooves 9, and then the insertion rod 6 under the blade body 2 is inserted into the slot 3, so that the connecting block 8 moves downward in the slot 3. When the limit rods 12 on the left and right sides of the connecting block 8 move to the two limit holes 5 opened on the outer surface of the milling cutter rod 1, the two limit rods 12 are respectively popped out from the two limit holes 5 under the elastic reset of the spring 10, so that the blade body 2 is convenient to During the installation of the blade body 2 and the milling cutter arbor 1, when the insert rod 6 is inserted into the slot 3, the two positioning strips 7 are respectively inserted into the two positioning grooves 4 to assist in positioning the connecting block 8, so that the limiting rods 12 on both sides of the connecting block 8 always keep corresponding to the vertical position of the two limiting holes 5, so that when the connecting block 8 moves downward in the slot 3, the two limiting rods 12 always keep close to the two limiting holes 5 in the vertical direction, so that the two limiting rods 12 can quickly pop out from the two limiting holes 5, which can improve the efficiency of the installation of the blade body 2.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A milling cutter with a convenient replacement of a milling cutter blade, comprising a milling cutter shank (1) and a blade body (2), characterized in that: A slot (3) is provided in the middle of the upper end of the milling cutter rod (1), and a positioning slot (4) is provided at the front and rear of the inner wall of the slot (3). A limiting hole (5) is provided at the lower left and lower right of the outer surface of the milling cutter rod (1). The lower end of the blade body (2) is fixedly connected with an insertion rod (6), and the front and rear of the outer surface of the insertion rod (6) are fixedly connected with a positioning strip (7). The lower end of the insertion rod (6) is fixedly connected with a connecting block (8), and the inner left and right parts of the connecting block (8) are both provided with movable slots (9). The inner walls of the adjacent two movable slots (9) are both fixedly connected with springs (10), and the ends of the two springs (10) away from the inner wall of the movable slot (9) are both fixedly connected with a limiting block (11), and the ends of the two limiting blocks (11) away from the springs (10) are both fixedly connected with a limiting rod (12).

2. The milling cutter with easy replacement of milling cutter blade according to claim 1, characterized in that: The two limiting holes (5) are both communicated with the interior of the slot (3), and the diameter of the insertion rod (6) is the same as the diameter of the slot (3).

3. The milling cutter with easy replacement of milling cutter blade according to claim 1, characterized in that: The insertion rod (6) is connected to the slot (3) through insertion, and the two positioning strips (7) are connected to the two positioning grooves (4) through insertion, respectively.

4. The milling cutter with easy replacement of milling cutter blade according to claim 1, characterized in that: The lower end of the blade body (2) is tightly fitted with the milling cutter rod (1), and the lower end of the connecting block (8) is tightly fitted with the lower groove wall of the slot (3).

5. The milling cutter with easy-to-replace milling cutter blade according to claim 1, characterized in that: The two limit blocks (11) are movably connected to the inner walls of the two movable grooves (9) respectively, and the two limit rods (12) are respectively connected through the two movable grooves (9).

6. The milling cutter with easy-to-replace milling cutter blade according to claim 1, characterized in that: One end of the two limiting rods (12) away from the limiting block (11) is respectively inserted and connected with the two limiting holes (5).

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