Milling cutter with replaceable cutter head

Abstract

The utility model relates to the technical field of milling cutters, in particular to a milling cutter with a replaceable cutter head, which comprises a threaded rod arranged on the end face of a milling cutter main body, a placing groove arranged on the surface of the milling cutter main body, a positioning plate arranged in the placing groove, a limiting plate arranged at one end of the positioning plate, a threaded groove arranged on the end face of the milling cutter head and a groove arranged on the surface of the milling cutter head, a clamping groove is formed in the surface of the groove; the milling cutter with the replaceable cutter head has the beneficial effects that when the milling cutter head is damaged during use, the positioning plate can be firstly pulled up to drive the limiting plate to be separated from the interior of the milling cutter head, and then the milling cutter main body can be directly rotated to enable the threaded rod to be separated from the interior of the milling cutter head; therefore, the damaged milling cutter head can be taken down to be replaced with a new milling cutter head, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of milling cutters, in particular to a milling cutter with a replaceable cutter head. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth cuts off the excess of the workpiece intermittently in sequence during operation. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] In the prior art, a milling cutter is used during machine tool processing to process the blank raw material into a required structure.

[0004] However, when using a milling cutter for processing, the cutter head of the milling cutter may occasionally break or wear during the processing, so that the entire milling cutter needs to be replaced, which increases certain economic efficiency problems. For this reason, the utility model proposes a milling cutter with a replaceable cutter head to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a milling cutter with a replaceable cutter head to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a milling cutter with a replaceable cutter head, the milling cutter with a replaceable cutter head comprises: a milling cutter body, a threaded rod is arranged on the end surface of the milling cutter body, a placement groove is opened on the surface of the milling cutter body, a positioning plate is arranged in the placement groove, and a limit plate is arranged at one end of the positioning plate;

[0007] The milling cutter head has a thread groove on its end face, a groove on its surface, and a clamping groove on the surface of the groove.

[0008] Preferably, a positioning groove is opened on the surface of the placement groove, a vertical rod is arranged in the positioning groove, one end of the vertical rod is fixedly connected to the bottom of the positioning plate, a spring is sleeved on the surface of the vertical rod, one end of the spring is fixedly connected to the bottom of the positioning plate, and the other end of the spring is fixedly connected to the bottom of the positioning groove.

[0009] Preferably, two groups of positioning plates are provided, and the two groups of positioning plates are symmetrically distributed about the milling cutter body. The surface of the positioning plate is provided with a mounting groove, the inner side of the mounting groove is provided with a positioning ring, the inner ring surface of the positioning ring is provided with a thread, and the side of the positioning plate is provided with a rubber strip.

[0010] Preferably, a pull rod is provided in the installation groove, and the pull rod is in a "T" shape as a whole. A threaded ring is sleeved on the surface of the pull rod, and the threaded ring can be threadedly connected with the thread provided on the inner ring surface of the positioning ring.

[0011] Preferably, the threaded rod can be screwed into the thread groove, and two groups of grooves are provided, and the two groups of grooves are symmetrically distributed about the milling cutter head.

[0012] Preferably, one end of the limiting plate is fixedly connected to the end surface of the positioning plate, and a clamping plate is arranged at the bottom of the limiting plate. The clamping plate has a square plate-like structure and can be clamped into a clamping slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The milling cutter with replaceable cutter head proposed by the utility model can, when the milling cutter head is damaged during use, first pull up the positioning plate to drive the limit plate to disengage from the inside of the milling cutter head, and then directly rotate the milling cutter body to make the threaded rod disengage from the milling cutter head, so that the damaged milling cutter head can be removed and replaced with a new milling cutter head, which is more convenient to use. This avoids the problem that the milling cutter head occasionally breaks or becomes worn during the processing when the milling cutter is used for processing, thereby necessitating the replacement of the entire milling cutter, which increases certain economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after the structural positioning plate is removed;

[0017] Figure 3 It is a partial cross-sectional view of the structure of the utility model;

[0018] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0019] Figure 5 This is a schematic diagram of the main structure of the milling cutter structure of the utility model;

[0020] Figure 6 It is a partial cross-sectional view of the structural positioning plate of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the limit plate of the utility model.

[0022] In the figure: 1. milling cutter body; 2. threaded rod; 3. placement groove; 4. positioning plate; 5. limit plate; 6. milling cutter head; 7. threaded groove; 8. groove; 9. clamping groove; 10. positioning groove; 11. vertical rod; 12. spring; 13. installation groove; 14. positioning ring; 15. pull rod; 16. threaded ring; 17. rubber strip; 18. clamping plate. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 7 The utility model provides a technical solution: a milling cutter with a replaceable cutter head, the milling cutter with a replaceable cutter head comprises: a milling cutter body 1, a threaded rod 2 is arranged on the end face of the milling cutter body 1, a placement groove 3 is opened on the surface of the milling cutter body 1, a positioning plate 4 is arranged in the placement groove 3, and a limit plate 5 is arranged at one end of the positioning plate 4; a milling cutter head 6, a threaded groove 7 is opened on the end face of the milling cutter head 6, a groove 8 is opened on the surface of the milling cutter head 6, and a clamping groove 9 is opened on the surface of the groove 8;

[0026] When the milling cutter head 6 is damaged during use, the positioning plate 4 can be pulled up first to drive the limit plate 5 to disengage from the inside of the milling cutter head 6, and then the milling cutter body 1 can be directly rotated to make the threaded rod 2 disengage from the milling cutter head 6, so that the damaged milling cutter head 6 can be removed and replaced with a new milling cutter head 6, which is more convenient to use.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, in order to facilitate the installation of the milling cutter head 6, a threaded rod 2 is provided, a positioning groove 10 is opened on the surface of the placement groove 3, a vertical rod 11 is provided in the positioning groove 10, one end of the vertical rod 11 is fixedly connected to the bottom of the positioning plate 4, a spring 12 is sleeved on the surface of the vertical rod 11, one end of the spring 12 is fixedly connected to the bottom of the positioning plate 4, and the other end of the spring 12 is fixedly connected to the bottom of the positioning groove 10, one end of the limit plate 5 is fixedly connected to the end face of the positioning plate 4, a clamping plate 18 is provided at the bottom of the limit plate 5, the clamping plate 18 is a square plate-shaped structure, the clamping plate 18 can be clamped into the clamping groove 9, the threaded rod 2 can be screwed into the threaded groove 7, and two groups of grooves 8 are provided, and the two groups of grooves 8 are symmetrically distributed about the milling cutter head 6;

[0029] When in use, pull up the positioning plate 4, and then screw the threaded rod 2 set at one end of the milling cutter body 1 into the threaded groove 7 opened on the end face of the milling cutter head 6, and then loosen the positioning plate 4 so that the positioning plate 4 can be reset by the elastic force of the spring 12, so that the clamping plate 18 set at the bottom of the limit plate 5 can be clamped in the clamping groove 9, and the positioning plate 4 can be used in conjunction with the limit plate 5 to avoid the problem of the threaded rod 2 detaching from the threaded groove 7 when the milling cutter head 6 rotates at high speed.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, in order to facilitate pulling out the positioning plate 4, a pull rod 15 is provided. Two groups of positioning plates 4 are provided. The two groups of positioning plates 4 are symmetrically distributed about the milling cutter body 1. A mounting groove 13 is provided on the surface of the positioning plate 4. A positioning ring 14 is provided on the inner side of the mounting groove 13. The inner ring surface of the positioning ring 14 is provided with a thread. A rubber strip 17 is provided on the side of the positioning plate 4. A pull rod 15 is provided in the mounting groove 13. The pull rod 15 is in a "T" shape as a whole. A threaded ring 16 is provided on the surface of the pull rod 15. The threaded ring 16 can be threadedly connected with the thread provided on the inner ring surface of the positioning ring 14;

[0032] When in use, the rubber strip 17 arranged on the side of the positioning plate 4 can increase the friction between the positioning plate 4 and the side of the placement groove 3, thereby preventing the positioning plate 4 from escaping from the placement groove 3. When the positioning plate 4 needs to be pulled out, the pull rod 15 can be first rotated to screw the threaded ring 16 out of the positioning ring 14, so that the positioning plate 4 can be pulled out by utilizing the setting of the pull rod 15. The setting of the positioning ring 14 also prevents the pull rod 15 from escaping from the installation groove 13.

[0033] During actual use, when the milling cutter head 6 is damaged, the positioning plate 4 can be pulled up first to drive the limit plate 5 to disengage from the inside of the milling cutter head 6, and then the milling cutter body 1 can be directly rotated to make the threaded rod 2 disengage from the milling cutter head 6, so that the damaged milling cutter head 6 can be removed and replaced. The new milling cutter head 6 is more convenient to use. This avoids the problem that the milling cutter head occasionally breaks or wears during the processing when the milling cutter is used for processing, so that the entire milling cutter needs to be replaced, which increases certain economic benefits.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milling cutter with a replaceable cutter head, characterized in that: The milling cutter with a replaceable cutter head comprises: a milling cutter body (1), a threaded rod (2) is arranged on the end surface of the milling cutter body (1), a placement groove (3) is opened on the surface of the milling cutter body (1), a positioning plate (4) is arranged in the placement groove (3), and a limiting plate (5) is arranged at one end of the positioning plate (4); A milling cutter head (6) is provided with a thread groove (7) on the end surface of the milling cutter head (6), a groove (8) is provided on the surface of the milling cutter head (6), and a clamping groove (9) is provided on the surface of the groove (8).

2. A milling cutter with a replaceable cutter head according to claim 1, characterized in that: The surface of the placement groove (3) is provided with a positioning groove (10), a vertical rod (11) is arranged in the positioning groove (10), one end of the vertical rod (11) is fixedly connected to the bottom of the positioning plate (4), a spring (12) is sleeved on the surface of the vertical rod (11), one end of the spring (12) is fixedly connected to the bottom of the positioning plate (4), and the other end of the spring (12) is fixedly connected to the bottom of the positioning groove (10).

3. A milling cutter with a replaceable cutter head according to claim 1, characterized in that: The positioning plates (4) are provided in two groups, and the two groups of positioning plates (4) are symmetrically distributed with respect to the milling cutter body (1). The surfaces of the positioning plates (4) are provided with mounting grooves (13), the inner side surfaces of the mounting grooves (13) are provided with positioning rings (14), the inner ring surface of the positioning rings (14) is provided with threads, and the sides of the positioning plates (4) are provided with rubber strips (17).

4. A milling cutter with a replaceable cutter head according to claim 3, characterized in that: A pull rod (15) is arranged in the installation groove (13). The pull rod (15) is in a T-shape as a whole. A threaded ring (16) is sleeved on the surface of the pull rod (15). The threaded ring (16) can be threadedly connected with the thread provided on the inner ring surface of the positioning ring (14).

5. The milling cutter with replaceable cutter head according to claim 1, characterized in that: The threaded rod (2) can be threaded into the thread groove (7), and two groups of grooves (8) are provided, and the two groups of grooves (8) are symmetrically distributed about the milling cutter head (6).

6. A milling cutter with a replaceable cutter head according to claim 1, characterized in that: One end of the limiting plate (5) is fixedly connected to the end surface of the positioning plate (4), and a clamping plate (18) is arranged at the bottom of the limiting plate (5). The clamping plate (18) is in a square plate-shaped structure, and the clamping plate (18) can be clamped into the clamping slot (9).

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