Electric router with lock shaft mechanism

Abstract

The technical scheme belongs to the technical field of electric wood mills, and particularly relates to an electric wood mill with a lock shaft mechanism. The cutter mechanism comprises a rotating shaft rotationally arranged in the shell and a cutter head arranged on the end side of the rotating shaft; the driving mechanism is arranged in the shell and is used for driving the rotating shaft to rotate so as to realize the work of the cutter head; the shaft locking mechanism is movably arranged in the shell and is used for preventing the rotating shaft from rotating, so that the cutter head is convenient to disassemble and assemble; the shaft locking mechanism comprises a moving assembly, a shaft locking assembly and a shaft locking assembly, the locking piece is movably arranged in the shell, the front end of the locking piece is connected with the moving assembly, and the rear end of the locking piece is provided with a locking position; the reset piece movably abuts against the locking piece and is used for enabling the locking piece to have the trend of moving towards the moving assembly all the time; the moving assembly is used for pushing the locking piece to move and enabling the locking position to be matched with the rotating shaft, and is further used for maintaining the locking state of the rotating shaft.

Description

TECHNICAL FIELD

[0001] The technical scheme relates to the technical field of electric wood milling machines, in particular to an electric wood milling machine with a shaft locking mechanism. BACKGROUND

[0002] An electric wood milling machine is a handheld or fixed electric tool used for fine processing such as carving, grooving and edge trimming of wood. After long-time use, the cutter will be worn to varying degrees, thus requiring replacement.

[0003] The existing process of replacing the cutter of the electric wood milling machine is that one hand presses the shaft locking button and the other hand loosens the chuck, and then the milling cutter is replaced with a new one. This cutter replacement method has the following disadvantages: when one hand operates the shaft locking mechanism, the other hand needs to loosen the chuck and install the milling cutter, which is inconvenient to operate and has safety hazards. In addition, when the shaft locking mechanism is reset, there is a large rebound force, and the milling cutter cannot be locked tightly. SUMMARY

[0004] The technical scheme aims to provide an electric wood milling machine with a shaft locking mechanism, which solves the problem of single-handed cutter replacement of the original electric wood milling machine by setting a movable locking piece in the housing and maintaining the locking of the rotating shaft by clamping and locking the knob.

[0005] The technical scheme is achieved in the following manner:

[0006] The electric wood milling machine with a shaft locking mechanism comprises a housing, a cutter mechanism including a rotating shaft rotatably arranged in the housing and a cutter head arranged at the end side of the rotating shaft, a driving mechanism arranged in the housing for driving the rotating shaft to rotate to realize the work of the cutter head, and a shaft locking mechanism movably arranged in the housing for preventing the rotating shaft from rotating to facilitate the disassembly and assembly of the cutter head. The shaft locking mechanism comprises a moving assembly movably arranged on the housing, a locking piece movably arranged in the housing, a front end of the locking piece being connected to the moving assembly and a rear end of the locking piece having a locking position, and a reset piece movably abutting against the locking piece for making the locking piece always have a tendency to move towards the moving assembly. The moving assembly is used for pushing the locking piece to move and making the locking position cooperate with the rotating shaft, and is also used for maintaining the locking state of the rotating shaft.

[0007] Preferably, the electric wood milling machine further comprises a limiting mechanism, which comprises a limiting piece and a spring arranged in the housing for making the limiting piece always have a tendency to move towards the moving assembly. The moving assembly has a groove on the peripheral side. When the moving assembly is rotated to a set position, the limiting piece enters the groove to lock the position of the moving assembly.

[0008] Preferably, the limiting piece is a spherical piece or a column body with a spherical surface.

[0009] Preferably, the moving assembly comprises: a knob one, which is rotationally arranged in the housing and internally formed with a boss one; and a sleeve one, which is arranged in the internal space of the knob one and has a rear end connected with a locking piece; the sleeve one is internally formed with a boss two, and the top surface of the boss two has a second inclined surface and a flat surface; when the knob one rotates, the cooperation between the boss one and the second inclined surface is used to realize the movement of the sleeve one, and further realize the movement of the locking piece; the cooperation between the boss one and the flat surface is used to realize the locking of the sleeve one, and further realize the locking of the locking piece.

[0010] Preferably, the boss one is annular, and the top surface of the boss one has a first inclined surface which is adapted to the second inclined surface.

[0011] Preferably, the moving assembly comprises: a sleeve two, which is mounted in the housing and has a movable cavity in the sleeve two; and a knob two, which is movably arranged in the movable cavity and has at least one limiting block arranged on the peripheral side of the knob two; the locking piece is connected with the knob two; when it is needed to replace the tool head, the knob two is pushed to make the limiting block slide out of the movable cavity, and then the knob two is rotated, under the action of a reset piece, the limiting block is abutted against the end surface side wall of the sleeve two to realize the locking of the locking piece.

[0012] Preferably, the locking piece further has a movable position which is communicated with the locking position.

[0013] Preferably, the rear end of the sleeve one has a plug-in groove, and the front end of the locking piece has a plug-in part which is adapted to the plug-in groove.

[0014] Preferably, the rear end of the locking piece has a mounting part, the front end of the reset piece is sleeved outside the mounting part, and the rear end is arranged in a mounting groove formed in the housing.

[0015] Preferably, the tool mechanism comprises: a lock cap, which is threadedly arranged at the front end of the rotating shaft; and an elastic chuck, which is detachably arranged in the rotating shaft, and the tool head is arranged in the elastic chuck; when the lock shaft is arranged in the locking position, the rotation of the lock cap can realize the relaxation of the elastic chuck, and further realize the dismounting of the tool head.

[0016] The technical scheme has the following prominent and beneficial technical effects compared with the prior art:

[0017] 1. The moving assembly designed in the technical scheme can control the cooperation between the locking piece and the rotating shaft, the rotating shaft can be locked by cooperating with the locking position of the locking piece, so when the rotating shaft is located in the locking position, it is not necessary to control the locking of the rotating shaft by one hand, thereby the tool changing with both hands can be realized, the safety risk of the tool changing with one hand is reduced, the tool changing process of the bakelite milling machine is simplified, and the tool changing efficiency is improved.

[0018] 2、The knob one can be pushed to move the locking piece through the sleeve one when rotating, and when the knob one rotates to the set position, it is clamped and fixed with the limiting mechanism arranged on the shell, at this time, the rotating shaft can be maintained in the locked position, and personnel can conveniently change the tool with both hands. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of example 1.

[0020] Figure 2 It is an exploded view of example 1.

[0021] Figure 3 It is a structural schematic diagram of the inside of the knob and the rotating sleeve in example 1.

[0022] Figure 4 It is a structural schematic diagram of the rotating shaft in the locked position in example 1.

[0023] Figure 5 It is a structural schematic diagram of the knob two, the sleeve two and the locking piece in example 2.

[0024] The drawings show that: 1, the shell; 2, the tool mechanism; 21, the rotating shaft; 22, the tool head; 23, the lock cap; 24, the elastic chuck; 3, the driving mechanism; 4, the lock shaft mechanism; 41, the moving assembly; 411, the knob one; 412, the boss one; 413, the sleeve one; 414, the boss two; 415, the inclined surface two; 416, the plane; 417, the inclined surface one; 418, the groove; 42, the locking piece; 43, the locked position; 44, the reset piece; 45, the movable position; 46, the insertion slot; 47, the insertion part; 48, the mounting part; 49, the mounting slot; 451, the sleeve two; 452, the movable cavity; 453, the knob two; 454, the limiting block; 5, the limiting mechanism; 51, the limiting piece; 52, the spring. DETAILED DESCRIPTION

[0025] The specific embodiments of the technical scheme will be further described in detail below with reference to the drawings.

[0026]

Example 1

[0027] As Figures 1-4As shown, a bakelite milling machine with shaft locking mechanism 4, comprising a shell 1, a cutter mechanism 2, a driving mechanism 3 and a shaft locking mechanism 4, the shell 1 has a plurality of cavities for installing each mechanism, and the shell 1 also functions as a limiting position for each mechanism, the cutter mechanism 2 comprises a rotating shaft 21 arranged in the shell 1 and a cutter head 22 arranged at the end side of the rotating shaft 21, during the operation of the bakelite milling machine, the cutter head 22 will be worn and need to be replaced, the main purpose of the application is to realize two-handed tool changing to increase safety, the driving mechanism 3 is arranged in the shell 1 and is used to drive the rotating shaft 21 to rotate to realize the work of the cutter head 22, the shaft locking mechanism 4 is movably arranged in the shell 1 and is used to prevent the rotating shaft 21 from rotating to facilitate the disassembly and assembly of the cutter head 22, when the bakelite milling machine is working normally, the rotating shaft 21 is always rotating with the cutter head 22, because the cutter head needs to be replaced, the rotating shaft 21 must be locked.

[0028] Specifically, the cutter mechanism 2 further comprises a lock cap 23 and an elastic chuck 24, the rotating shaft 21 is rotatably arranged in the shell 1 and has a front end extending out of the shell 1 and connected with the elastic chuck 24 and the cutter head 22, the cutter head 22 is installed in the inner cavity of the rotating shaft 21 through the elastic chuck 24, the lock cap 23 is threadedly connected with the outer wall of the rotating shaft 21, when the lock cap 23 is tightened, the lock cap 23 presses the elastic chuck 24 to realize the locking of the cutter head 22, when the cutter head 22 needs to be replaced, the lock cap 23 only needs to be loosened, but no matter whether the lock cap 23 is tightened or loosened, the rotating shaft 21 must not be allowed to rotate relative to the shell 1.

[0029] Further, the shaft locking mechanism 4 comprises a moving assembly 41, a locking piece 42 and a reset piece 44, the moving assembly 41 is movably arranged on the shell 1, the locking piece 42 is movably arranged in the shell 1, the front end of the locking piece 42 is connected with the moving assembly 41, and the rear end of the locking piece 42 has a locking position 43, the reset piece 44 movably abuts against the locking piece 42 and is used to make the locking piece 42 always have a tendency to move towards the moving assembly 41, when the locking piece 42 is controlled to move by the moving assembly 41, the cooperation between the rotating shaft 21 and the locking position 43 can be realized, when the two cooperate with each other, the rotating shaft 21 is locked and cannot rotate, at this time, the tool changing operation can be performed, and the moving assembly 41 not only needs to push the locking piece 42 to move, but also needs to maintain the state after moving to free the hands and realize two-handed tool changing.

[0030] Further, the mobile assembly 41 is used to maintain the state of the locking member 42 after moving, which has two mutually matched structures, the first structure is the limiting mechanism 5 arranged in the bakelite milling machine, the limiting mechanism 5 comprises: a limiting member 51 and a spring 52, the limiting member 51 is arranged in the shell 1 in an extendable manner and movably abuts against the mobile assembly 41, the spring 52 is used to make the limiting member 51 always have a tendency to move towards the mobile assembly 41, the mobile assembly 41 has a groove 418 on the side, when the mobile assembly 41 is rotated to the set position, the limiting member 51 enters the groove 418, so as to realize the locking of the position of the mobile assembly 41, at this time, the mobile assembly 41 has pushed the locking member 42 to the position matched with the locking of the rotating shaft 21, the limiting member 51 is a spherical member or a column body with a spherical surface, the design of the spherical surface can reduce the friction of the mobile assembly 41 and increase the service life thereof.

[0031] As shown in Figures 2-4 , the mobile assembly 41 comprises a knob one 411 and a sleeve one 413, the knob one 411 is arranged in the shell 1 in a rotating manner, and the interior is formed with a boss one 412, the boss one 412 is arranged around the inner wall of the knob one 411 and gradually increases in height, so that the top surface of the boss one 412 forms an inclined surface one 417, in the application, the number of the boss one 412 is two, the sleeve one 413 is movably arranged in the interior space of the knob one 411, the front end movably abuts against the inclined surface one 417, and the rear end is connected with the locking member 42.

[0032] Further, the sleeve one 413 is formed with a boss two 414, the boss two 414 is also arranged around the inner wall of the sleeve one 413 and gradually increases in height, the top surface of the boss two 414 has an inclined surface two 415 and a flat surface 416 connected with each other, when the mobile assembly 41 normally works, the inclined surface one 417 and the inclined surface two 415 abut against each other, so that when the knob one 411 is rotated, the movement of the sleeve one 413 can be realized through the interaction of the inclined surface one 417 and the inclined surface two 415, so as to realize the movement of the locking member 42.

[0033] Further, when the inclined surface one 417 and the flat surface 416 match with each other, the position of the sleeve one 413 is locked, so as to prevent the sleeve one 413 from moving towards the knob one 411 under the action of the reset member 44.

[0034]

Variation

[0035] The boss one 412 is configured as a boss column, and the boss column can also be matched with the boss two 414 instead of the inclined surface.

[0036]

Variation

[0037] The configurations of the boss one 412 and the boss two 414 can be replaced with each other.

[0038] As shown in Figure 4As shown, the locking member 42 also has an active position 45 in communication with the locking position 43, in order to increase the stability of the cooperation between the rotating shaft 21 and the locking member 42, we design the locking member 42 to be closed, so that the rotating shaft 21 is limited in the locking position 43 or the active position 45, the inner diameter of the active position 45 is larger than the outer diameter of the rotating shaft 21, by designing the six-sided convex part in the middle of the rotating shaft 21, which is adapted to the shape of the locking position 43, when the rotating shaft 21 enters the locking position 43, it is locked.

[0039] Further, in order to increase the stability of the connection between the sleeve 413, the locking member 42 and the reset member 44, we open the plug-in slot 46 at the rear end of the sleeve 413, the locking member 42 is provided with a plug-in part 47 adapted to the plug-in slot 46, the locking member 42 is provided with a mounting part 48 at the rear end, the reset member 44 is sleeved on the outside of the mounting part 48, and the rear end is placed in the mounting slot 49 formed in the shell 1.

[0040]

Embodiment 2

[0041] As Figure 5 shown, the present embodiment is provided generally the same as the setting of embodiment 1, the only difference is the structure of the moving assembly 41, the moving assembly 41 includes a sleeve 451 and a knob 453, the sleeve 451 is fixedly installed in the shell 1, the sleeve 451 has an active cavity 452 inside, the knob 453 is movably arranged in the active cavity 452, and at least one limiting block 454 is arranged on the side, the moving mode of the locking member 42 in the present embodiment is to move the locking member 42 by pushing the knob 453, and to lock the locking member 42 by rotating the knob 453, the front end of the locking member 42 and the rear end of the knob 453 are connected, when the tool head 22 needs to be replaced, the knob 453 is pushed to make the limiting block 454 slide out of the active cavity 452, and then the knob 453 is rotated, under the action of the reset member 44, the limiting block 454 is abutted against the end face side wall of the sleeve 451, so as to realize the locking of the locking member 42.

[0042] The basic principles and main features of the technical scheme and the advantages of the technical scheme are shown and described above. It should be understood by those skilled in the art that the technical scheme is not limited by the above embodiments, the above embodiments and descriptions in the specification are only to illustrate the principles of the technical scheme, and various changes and improvements can be made to the technical scheme without departing from the spirit and scope of the technical scheme, and these changes and improvements all fall within the scope of the claimed technical scheme. The scope of protection of the technical scheme is defined by the appended claims and their equivalents.

Claims

1. A bakelite milling machine having a lock shaft mechanism, characterized by, The utility model relates to a cutter head locking mechanism of a rotary cutter, which comprises: a housing (1); a cutter mechanism (2) comprising a rotating shaft (21) rotatably arranged in the housing (1) and a cutter head (22) arranged at the end of the rotating shaft (21); a driving mechanism (3) arranged in the housing (1) for driving the rotating shaft (21) to rotate to realize the working of the cutter head (22); and a locking shaft mechanism (4) movably arranged in the housing (1) for preventing the rotating shaft (21) from rotating to facilitate the disassembly and assembly of the cutter head (22); wherein the locking shaft mechanism (4) comprises: a moving assembly (41) movably arranged on the housing (1); a locking piece (42) movably arranged in the housing (1), the front end of the locking piece (42) being connected with the moving assembly (41), and the rear end of the locking piece (42) having a locking position (43); and a reset piece (44) movably abutting against the locking piece (42) for making the locking piece (42) always have a tendency to move towards the moving assembly (41); wherein the moving assembly (41) is used for pushing the locking piece (42) to move and making the locking position (43) cooperate with the rotating shaft (21), and is also used for maintaining the locking state of the rotating shaft (21).

2. The bakelite moulder with locking mechanism as claimed in claim 1 wherein: The utility model further comprises a limiting mechanism (5) comprising: a limiting piece (51); and a spring (52) arranged in the housing (1) for making the limiting piece (51) always have a tendency to move towards the moving assembly (41); wherein the moving assembly (41) has a groove (418) on the side surface thereof; when the moving assembly (41) is rotated to a set position, the limiting piece (51) enters the groove (418) to realize the locking of the position of the moving assembly (41).

3. The bakelite moulder with locking mechanism as claimed in claim 2 wherein: The limiting piece (51) is a spherical piece or a columnar body with a spherical surface.

4. A bakelite moulder with locking mechanism as claimed in any one of claims 1 to 3, wherein, The moving assembly (41) comprises: a knob one (411) rotatably arranged in the housing (1) and internally formed with a boss one (412); and a sleeve one (413) arranged in the internal space of the knob one (411) and having the rear end connected with the locking piece (42); the sleeve one (413) is internally formed with a boss two (414), and the top surface of the boss two (414) has an inclined surface two (415) and a flat surface (416); wherein when the knob one (411) is rotated, the cooperation of the boss one (412) and the inclined surface two (415) is used for realizing the movement of the sleeve one (413), and further realizing the movement of the locking piece (42); the cooperation of the boss one (412) and the flat surface (416) is used for realizing the locking of the sleeve one (413), and further realizing the locking of the locking piece (42).

5. The bakelite moulder with locking mechanism as claimed in claim 4 wherein: The boss one (412) is annular, and the top surface of the boss one (412) has an inclined surface one (417) matched with the inclined surface two (415).

6. A bakelite moulder with locking mechanism as claimed in any one of claims 1 to 3 wherein, The moving assembly (41) comprises: a sleeve two (451) mounted in the housing (1) and having a movable cavity (452) in the sleeve two (451); and a knob two (453) movably arranged in the movable cavity (452) and having at least one limiting block (454) arranged on the side surface of the knob two (453); the locking piece (42) and the knob two (453) are connected. When the tool head (22) needs to be replaced, the knob two (453) is pushed to make the limiting block (454) slide out of the active cavity (452), and then the knob two (453) is rotated, under the action of the reset member (44), the limiting block (454) is abutted against the end face side wall of the sleeve two (451), so as to realize the locking of the locking member (42).

7. The bakelite moulder with locking mechanism as claimed in claim 5 wherein: The locking member (42) also has an active position (45) communicated with the locking position (43).

8. The bakelite moulder with locking mechanism as claimed in claim 7 wherein: The sleeve one (413) has a plug groove (46) at the rear end, and the locking member (42) has a plug part (47) matched with the plug groove (46) at the front end.

9. The bakelite moulder with locking mechanism as claimed in claim 8 wherein: The rear end of the locking member (42) has a mounting part (48), and the front end of the reset member (44) is sleeved outside the mounting part (48), and the rear end is arranged in the mounting groove (49) formed in the shell (1).

10. The bakelite moulder with locking mechanism as claimed in claim 9 wherein, The tool mechanism (2) comprises: a lock cap (23) threadedly arranged at the front end of the rotating shaft (21); and a elastic chuck (24) detachably arranged in the rotating shaft (21), and the tool head (22) is arranged in the elastic chuck (24); When the lock shaft is arranged in the locking position (43), the elastic chuck (24) is released by rotating the lock cap (23), and then the tool head (22) is disassembled.

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