Electric router

Abstract

The utility model relates to an electric router, which comprises a base, a guide post mounted on the base and a driving part moving up and down along the guide post, and the base comprises a first bottom plate connected to the guide post and a second bottom plate mounted on the first bottom plate; an elastic piece is installed between the first bottom plate and the second bottom plate, the first bottom plate is provided with a joint part facing the second bottom plate and an installation part sunken from the end face of the joint part, the elastic piece is installed on the installation part, and when the first bottom plate is combined with the second bottom plate, the length of the elastic piece protruding out of the end face of the joint part is 0.1 mm-0. 3 mm. The elastic piece is installed between the first bottom plate and the second bottom plate, a gap generated due to the fact that the first bottom plate and the second bottom plate are not attached to each other is eliminated, and then the noise reduction and shock absorption effects are achieved.

Description

Technical Field

[0001] The utility model relates to the field of power tools, in particular to a router for wood processing. Background Art

[0002] Power tools such as routers usually include a base, a guide post installed on the base, and a driving component that moves up and down along the guide post. When working, the user holds the auxiliary handles on both sides of the driving component to operate the router along the working plane.

[0003] In the existing router, the base includes a metal bottom plate and a plastic bottom plate, and the metal base and the plastic bottom plate are fastened by a plurality of screws. However, since the plastic bottom plate is prone to deformation under force, the metal base and the plastic bottom plate are likely to be not fitted, resulting in resonance and making the noise of the whole machine larger.

[0004] In view of this, it is necessary to provide an improved router to overcome the defects existing in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a router with low vibration and low noise.

[0006] The utility model can adopt the following technical solutions to solve the problems of the prior art: a router, including a base, a guide post installed on the base, and a driving component that moves up and down along the guide post, wherein the base includes a first bottom plate connected to the guide post and a second bottom plate installed on the first bottom plate; an elastic member is installed between the first bottom plate and the second bottom plate, the first bottom plate has a joint portion facing the second bottom plate and a mounting portion recessed from the end surface of the joint portion, the elastic member is installed in the mounting portion, and when the first bottom plate is combined with the second bottom plate, the length of the elastic member protruding from the end surface of the joint portion is 0.1 mm - 0.3 mm.

[0007] A further improvement scheme is: the mounting portion and the elastic member are in interference fit, and the length of the elastic member is not less than half of the depth of the mounting portion.

[0008] A further improvement scheme is: one end of the elastic member abuts against the mounting portion, and the other end abuts against the second bottom plate.

[0009] A further improvement scheme is: the ratio of the distance from the center of the elastic member to the center of the base to the radius of the base is not less than 0.8.

[0010] A further improvement solution is as follows: There are multiple elastic members, and the multiple elastic members are spaced around the center of the base, and the included angle formed by two adjacent elastic members to the center of the base is between 40° and 50°.

[0011] A further improvement solution is as follows: There are multiple elastic members, and at least two of the elastic members are symmetrically arranged with respect to the center line of the base 1.

[0012] A further improvement solution is as follows: The first bottom plate further has a first fixing portion recessed from the end face of the joint portion, and the first fixing portions are spaced around the center of the base, and the first fixing portion is closer to the second bottom plate than the mounting portion.

[0013] A further improvement solution is as follows: The second bottom plate further has a second fixing portion recessed from the end face, and the second fixing portion is fixedly connected to the first fixing portion by screws.

[0014] Compared with the prior art, the present utility model has the following beneficial effects: By installing elastic members between the first bottom plate and the second bottom plate, the gap generated due to the non-fitting of the first bottom plate and the second bottom plate is eliminated, thereby achieving the effect of noise reduction and vibration damping. Specifically, when the first bottom plate is combined with the second bottom plate, the length of the elastic member protruding from the end face of the joint portion is 0.1 mm - 0.3 mm. The reliable fitting enables better absorption of the energy generated by the vibration impact during work, preventing the relative movement with a large vibration amplitude between the first bottom plate and the second bottom plate, thereby solving the noise problem caused by vibration; further, there are multiple elastic members, and the multiple elastic members are spaced around the center of the base, and the included angle formed by two adjacent elastic members to the center of the base is between 40° and 50°, so that the gap generated due to the non-fitting of the first bottom plate and the second bottom plate is evenly compensated. [Description of the Drawings]

[0015] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings:

[0016] Figure 1 is a schematic structural diagram of the electric router of the present utility model;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the base of the electric router shown;

[0018] Figure 3 is Figure 2 an exploded schematic diagram of the base shown;

[0019] Figure 4 is Figure 3 an exploded schematic diagram of the base shown, and the base is in an inverted state;

[0020] Figure 5A is Figure 2 a schematic cross-sectional view of the shown base;

[0021] Figure 5B is Figure 5A a partial enlarged view at A;

[0022] Figure 6 is Figure 3 a schematic plan view of the first base plate of the shown base, and the elastic member is cylindrical;

[0023] Figure 7 is Figure 3 a schematic plan view of the first base plate of the shown base, and the elastic member is rectangular. [Specific Embodiments]

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The terms used in the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. For example, the terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", etc. are only based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0026] Please refer to Figures 1 to 5B as shown, the embodiment of the present utility model relates to a router 100, which includes a base 1, a guide post 2 installed on the base 1, and a driving component 3 that moves up and down along the guide post 2. The driving component 3 is slidably connected up and down through the guide post 2. When working, the user holds the auxiliary handles 4 on both sides of the driving component 3 to operate the router 100 to perform operations along the working plane.

[0027] In this embodiment, the base 1 includes a first base plate 11 connected to the guide post 2 and a second base plate 12 installed on the first base plate 11. The material of the first base plate 11 is a metal part, and the material of the second base plate 12 is a plastic part. The plastic part is prone to deformation under force, and it is easy to have a situation where the surfaces do not fit in the base 1. Therefore, an elastic member 13 is installed between the first base plate 11 and the second base plate 12 to eliminate the gap generated by the non-fitting of the first base plate 11 and the second base plate 12, thereby achieving the effect of noise reduction and vibration damping.

[0028] Specifically, the first base plate 11 has a joint portion 111 facing the second base plate 12 and a mounting portion 112 recessed from the end face of the joint portion 111. The elastic member 13 is installed in the mounting portion 112. When the first base plate 11 is combined with the second base plate 12, the length h of the elastic member 13 protruding from the end face of the joint portion 111 is 0.1 mm - 0.3 mm. Through the above settings, reliable fitting enables better absorption of the energy generated by vibration shocks during work, preventing relative movement with a large vibration amplitude between the first base plate 11 and the second base plate 12, thereby solving the noise problem caused by vibration. It should be noted that the joint portion 111 can be an irregular component, but in order to meet the strength of the substrate 1 while saving costs, the joint portion 111 can be configured as a reinforcing rib, which has multiple rib positions with varying heights. In addition, when the first base plate 11 and the second base plate 12 are not installed, the length h of the elastic member 13 protruding from the end face of the joint portion 111 is 0.5 mm - 0.6 mm.

[0029] Furthermore, the mounting portion 112 and the elastic member 13 are in interference fit, and the length of the elastic member 13 is not less than half of the depth of the mounting portion 112. It should be noted that the mounting portion 112 has an axially extending length value, and the length of the elastic member 13 installed is greater than or equal to half of this length value, avoiding the situation where the base 1 becomes loose during work, resulting in the elastic member 13 falling off. Specifically, in the installed state, one end of the elastic member 13 abuts against the mounting portion 112, and the other end abuts against the second base plate 12, enabling better clearance compensation for the base 1 of the electric router 100 in the main movement force direction, playing a role in shock absorption and noise reduction.

[0030] In addition, the ratio of the distance from the center of the elastic member 13 to the center of the circle of the base 1 to the radius of the base 1 is not less than 0.8. This enables uniform compensation for the clearance generated due to the incomplete fitting of the first base plate 11 and the second base plate 12, solving the problem of resonance noise caused by the vibration of the entire machine.

[0031] Please participate Figure 6 As shown, there are multiple elastic members 13, and the multiple elastic members 13 are spaced around the center of the circle of the base 1. In this embodiment, the elastic member 13 is cylindrical and the number is 6, but it is not limited to this. The angle θ formed by the centers of two adjacent elastic members 13 and the center of the circle of the base 1 1 、θ 2 is between 40° and 50°. This enables uniform compensation for the clearance generated due to the non-fitting of the first base plate 11 and the second base plate 12. It should be noted that the angle θ 1 is configured to have an angle formed by the centers of two elastic members 13 and the center of the circle of the base 1 without a spacer for one screw, and the angle θ 2Configured to space one screw, the included angle formed by the two elastic members 13 to the center of the base 1. In addition, at least two elastic members 13 are symmetrically arranged about the center line of the base 1, so as to compensate for the vibration problem caused by the incomplete fitting of the first bottom plate 11 and the second bottom plate 12 after the screw is tightened.

[0032] In addition, in this embodiment, the elastic member 13 is configured to be cylindrical, but it can also be configured to be rectangular, such as Figure 7 shown, the rectangular elastic members are spaced around the center of the base 1. The number can be preferably 4 but not limited to this, and at least two elastic members 13 are symmetrically arranged about the center line of the base 1. The included angle θ 1 、θ 2 for spacing one screw, the included angle formed by the two elastic members 13 to the center of the base 1 is 90°.

[0033] Please refer to Figure 3 and Figure 4 shown, the first bottom plate 11 further has a first fixing portion 113 recessed from the end face of the self-engaging portion 111. The first fixing portions 113 are spaced around the center of the base 1, and the first fixing portion 113 is closer to the second bottom plate 12 than the mounting portion 112. Specifically, the second bottom plate 12 further has a second fixing portion 121 recessed from the end face, and the second fixing portion 121 is fixedly connected to the first fixing portion 113 by screws.

[0034] The present utility model is not limited to the above specific embodiments. Those of ordinary skill in the art can easily understand that without departing from the principles and scope of the present utility model, there are many alternative solutions for the electric router of the present utility model. The protection scope of the present utility model shall be subject to the content of the claims.

Claims

1. A bakelite milling machine, comprising a base, a guide column mounted on the base, and a driving component moving up and down along the guide column, wherein the base comprises a first bottom plate connected to the guide column and a second bottom plate mounted on the first bottom plate; characterized in that: An elastic member is installed between the first base plate and the second base plate. The first base plate has a joint portion facing the second base plate and a mounting portion recessed from the end surface of the joint portion. The elastic member is installed on the mounting portion. When the first base plate is combined with the second base plate, the length of the elastic member protruding from the end surface of the joint portion is 0.1mm-0.3mm.

2. The electric milling machine according to claim 1, characterized in that: The mounting portion is interference-fitted with the elastic member, and the length of the elastic member is not less than half the depth of the mounting portion.

3. The electric milling machine according to claim 2, characterized in that: One end of the elastic member abuts against the mounting portion, and the other end abuts against the second bottom plate.

4. The electric milling machine according to claim 1, characterized in that: The ratio of the distance from the center of the elastic member to the center of the circle of the base to the radius of the base is not less than 0.

8.

5. The electric milling machine according to claim 1, characterized in that: There are a plurality of elastic members, and the plurality of elastic members are distributed at intervals around the center of the base, and an angle formed between two adjacent elastic members and the center of the base is between 40° and 50°.

6. The electric milling machine according to claim 1, characterized in that: There are a plurality of elastic members, and at least two of the elastic members are symmetrically arranged about the center line of the base.

7. The electric milling machine according to claim 3, characterized in that: The first bottom plate also has a first fixing portion recessed from the end surface of the joint portion, the first fixing portions are spaced around the center of the base, and the first fixing portions are closer to the second bottom plate than the mounting portion.

8. The electric milling machine according to claim 7, characterized in that: The second bottom plate further has a second fixing portion recessed from the end surface, and the second fixing portion is fixed to the first fixing portion by screws.

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