Cutting device

Abstract

A cutting device is provided with a cutting blade, the cutting device comprises a base, a machine frame fixed to the upper portion of the base and a cutting body connected to the machine frame in a pivoted mode, and the cutting body is supported on the base in an up-down swinging mode; the cutting body comprises a shell, a motor assembly contained in the shell and a transmission assembly driven by the motor assembly and located at the axial front end of the motor assembly. The cutting blade is connected to the axial front end of the transmission assembly and driven by the transmission assembly to rotate. The cutting body comprises a protective cover at least partially covering the cutting blade, the base is provided with a vibration reduction mechanism, and when the cutting body is pressed downwards, the lower end of the protective cover abuts against the vibration reduction mechanism and drives the vibration reduction mechanism to move. During cutting operation, the cutting body moves downwards, the front end of the movable protective cover impacts the damping mechanism to drive the damping mechanism to move, impact force between the cutting body and the movable protective cover can be absorbed, and vibration and noise are reduced.

Description

[Technical field]

[0001] The utility model relates to the technical field of cutting devices, in particular to a cutting device with a base vibration reduction mechanism. [Background Technology]

[0002] The cutting device is mainly used to cut non-ferrous metal profiles such as aluminum and wood, fiberboard, plastic board and other materials. At present, the traditional cutting device usually includes a base for placing the workpiece to be processed, a frame matched with the base and a main body connected to the frame, wherein the main body includes a cutting blade for cutting the workpiece to be processed and a fixed shield and a dynamic shield for masking the cutting blade. During the cutting operation, the dynamic shield will hit the upper surface of the base as the main body moves downward, thereby generating vibration and noise.

[0003] In view of this, it is indeed necessary to provide an improved cutting device to overcome the defects of the prior art. [Contents of the utility model]

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a cutting device, wherein a vibration reduction mechanism is provided on a base of the cutting device, and when a dynamic shield collides with the vibration reduction mechanism, the dynamic shield can be buffered to reduce vibration and noise.

[0005] The utility model adopts the following technical solution to solve the problems of the prior art: a cutting device equipped with a cutting blade, the cutting device comprising a base, a frame fixed above the base and a cutting body pivotally connected to the frame, the cutting body being supported on the base in an up and down swinging manner; the cutting body comprising a shell, a motor assembly accommodated in the shell and a transmission assembly driven by the motor assembly and located at the axial front end of the motor assembly, the cutting blade being connected to the axial front end of the transmission assembly and being driven by the transmission assembly for rotation; the cutting body comprising a shield at least partially covering the cutting blade, the base being provided with a vibration reduction mechanism, and when the cutting body is pressed downward, the lower end of the shield abuts against the vibration reduction mechanism and drives the vibration reduction mechanism to move.

[0006] A further improved solution is: the base is provided with an opening penetrating through the upper surface, and the shock absorbing mechanism is installed to the opening.

[0007] A further improvement is as follows: the vibration reduction mechanism includes a container fixed to the opening, an elastic member connected to the container, and a baffle connected to the upper end of the elastic member, the upper end of the container is a notch, and the lower end of the elastic member is connected to the lower end of the container.

[0008] A further improved solution is: the shield comprises a fixed shield fixed to the housing and a dynamic shield rotatably connected to the fixed shield, and the dynamic shield rotates with the up and down swing of the cutting body.

[0009] A further improved solution is: when the cutting body is pressed downward, the dynamic shield rotates downward, the lower end of the dynamic shield abuts against the baffle and can press the baffle downward to compress the elastic member downward.

[0010] A further improved solution is: the lower end of the dynamic shield includes a buffer member, and the buffer member abuts against the baffle as the dynamic shield rotates.

[0011] A further improvement is that the elastic member is a spring, and the size of the outer periphery of the baffle is not greater than the size of the inner periphery of the containing body.

[0012] A further improvement is that the containing body is made of metal material and is welded to the base.

[0013] A further improvement is that the buffer is made of rubber or plastic.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the cutting body includes a shield that at least partially covers the cutting blade, and the base is provided with a vibration reduction mechanism. When the cutting body is pressed down, the lower end of the shield abuts against the vibration reduction mechanism and drives the vibration reduction mechanism to move. During the cutting operation, the cutting body moves downward, and the front end of the moving shield hits the vibration reduction mechanism, driving the vibration reduction mechanism to move, which can absorb the impact force between the two and reduce vibration and noise. [Drawings]

[0015] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a three-dimensional schematic diagram of the cutting device of the utility model;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the cutting device shown in another angle;

[0018] Figure 3 yes Figure 2 A cross-sectional view of the cutting device in a first direction shown;

[0019] Figure 4 yes Figure 2 A cross-sectional view of the cutting device in a second direction;

[0020] Figure 5 yes Figure 1 A schematic diagram of the base portion of the cutting device is shown.

[0021] Meaning of the reference numerals in the figures:

[0022] Cutting device 100 Cutting body 200

[0023] Base 1 Supporting device 10

[0024] Clamping seat 101 Lead screw 102

[0025] Adjustment handle 103 Clamping plate 104

[0026] Fixed plate 105 Vibration reduction mechanism 11

[0027] Accommodating body 111 Elastic member 112

[0028] Baffle 113 Opening 12

[0029] Limit screw 13 Frame 2

[0030] Pivot shaft 20 Spring 21

[0031] Support arm 3 Shell 4

[0032] Grip 40 Switch 41

[0033] Motor assembly 5 Transmission assembly 6

[0034] Cutting disc 7 Guard 8

[0035] Fixed shield 80 Dynamic shield 81

[0036] Buffer 811 [Specific implementation method]

[0037] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship 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 / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0038] See also Figures 1 to 5 The figure shows a cutting device 100 involved in the utility model, which includes a base 1 and a cutting body 200 supported on the base 1. The cutting body 200 is supported on the base 1 in a manner that it can swing up and down, so that the cutting device 100 can cut a workpiece to be processed (not shown).

[0039] The cutting device 100 includes a frame 2 fixed to the upper surface of the base 1, the frame 2 is provided with a pivot shaft 20 that passes through the frame 2 in the horizontal direction and a spring 21 that is sleeved on the outer periphery of the pivot shaft 20; the cutting body 200 is provided with a support arm 3 connected to the frame 2, the support arm 3 is installed to the frame 2 through the pivot shaft 20, so that the support arm 3 supports the cutting body 200 to swing up and down, and the elastic force of the spring 21 makes the cutting body 200 be in a standby position away from the upper side of the base 1 when the cutting device 100 is in a state of waiting for cutting, thereby improving the safety of operation.

[0040] Furthermore, a limit screw 13 is provided on the base 1, and the limit screw 13 is located at the front end of the frame 2. The limit screw 13 protrudes from the upper surface of the base 1. When the cutting body 200 moves downward, the support arm 3 abuts against the upper end of the limit screw 13 to limit the cutting body 200 from continuing to move downward.

[0041] The cutting body 200 includes a shell 4, a motor assembly 5 accommodated in the shell 4, a transmission assembly 6 driven by the motor assembly 5 and located at the axial front end of the motor assembly 5, a cutting blade 7 connected to the axial front end of the transmission assembly 6 and driven by the transmission assembly 6 to rotate, and a shield 8 that at least partially covers the cutting blade 7. The motor assembly 5 drives the cutting blade 7 to rotate and cut the workpiece to be processed through the transmission assembly 6.

[0042] The housing 4 includes a gripping portion 40 located at an upper end and suitable for an operator to grip, and a switch 41 located on the gripping portion 40 . The switch 41 is pressed to control the start and stop of the cutting device 100 .

[0043] The shield 8 includes a fixed shield 80 fixed to the housing 4 and a dynamic shield 81 rotatably connected to the fixed shield 80 , and the dynamic shield 81 rotates with the up and down swinging of the cutting body 200 .

[0044] See also Figure 5 As shown, the base 1 is provided with an opening 12 penetrating the upper surface and a vibration reduction mechanism 11 mounted to the opening 12. When the cutting body 200 is pressed down, the lower end of the shield 8 abuts against the vibration reduction mechanism 11 and drives the vibration reduction mechanism 11 to move. Specifically, during the cutting operation, the front end of the dynamic shield 81 abuts against the vibration reduction mechanism 11.

[0045] Furthermore, the vibration damping mechanism 11 includes a housing 111 fixed to the opening 12, an elastic member 112 connected to the housing 111, and a baffle 113 connected to the upper end of the elastic member 112, the upper end of the housing 111 is notched, and the lower end of the elastic member 112 is connected to the lower end of the housing 111.

[0046] When the cutting body 200 is pressed downward, the dynamic shield 81 rotates downward, and the lower end of the dynamic shield 81 abuts against the baffle 113 and can press the baffle 113 downward to compress the elastic member 112 downward; specifically, the elastic member 112 is a spring. When the elastic member 112 is compressed downward, it can absorb the impact force generated when the dynamic shield 81 hits the vibration reduction mechanism 11 downward, thereby reducing the vibration and noise between the two.

[0047] The containing body 111 is made of metal material, and the containing body 111 is fixed to the opening 12 by welding; the outer circumferential dimension of the baffle 113 is not larger than the inner circumferential dimension of the containing body 111, and the baffle 113 can move downward into the containing body 111, and the baffle 113 can be made of plastic, rubber, metal or other materials.

[0048] The shapes of the opening 12, the containing body 111 and the baffle 113 are adapted to each other. In the present embodiment, the selected shape is a square. Alternatively, other shapes may be selected, such as a circle, a triangle, a trapezoid, an irregular shape, etc.

[0049] Furthermore, the lower end of the dynamic shield 81 includes a buffer 811, and the buffer 811 abuts against the baffle 113 as the dynamic shield 81 rotates, and presses the elastic member 112 downward. The buffer 811 is made of a soft material, such as rubber; the buffer 811 is arranged to abut against the baffle 113 to further reduce vibration and noise.

[0050] Please continue reading Figure 5 As shown, the base 1 is provided with a holding device 10 located on the upper surface and a guide rail (not shown) penetrating the upper surface and extending longitudinally, and the clamping device 10 is used to clamp the workpiece to be processed. The holding device 10 includes a fixed plate 105 and a clamping plate 104 located on the upper surface of the base 1, the clamping plate 104 is located at the relatively front end of the fixed plate 105, and the fixed plate 105 is connected to the guide rail and can move within the guide rail. Such an arrangement allows the fixed plate 105 to be adjusted in time in the longitudinal position of the base 1 according to the cutting requirements, and the adjustable position is diversified. The workpiece to be processed is placed between the fixed plate 105 and the clamping plate 104, so that the workpiece to be processed is clamped and fixed, which is convenient for cutting operations.

[0051] Furthermore, the holding device 10 comprises a clamping seat 101 located at the longitudinal front end of the base 1 and a lead screw 102 extending in the longitudinal direction, the clamping seat 101 is fixed to the upper surface of the base 1, the longitudinal front end of the lead screw 102 is inserted into the clamping seat 104, and the clamping plate 104 is connected to the longitudinal rear end of the lead screw 102. An adjustment handle 103 is installed at the front end of the lead screw 102, and the adjustment handle 103 is inserted into the longitudinal front end of the lead screw 102. When the adjustment handle 103 is rotated, the lead screw 102 rotates together, so that the lead screw 102 slides in the clamping seat 101, thereby driving the clamping plate 104 to move in the guide rail, and clamping or loosening the workpiece to be processed between the fixed plate 105 and the clamping plate 104.

[0052] In this embodiment, the cutting body 200 includes the shield 8 that at least partially covers the cutting blade 7, and the base 1 is provided with the vibration reduction mechanism 11. When the cutting body 200 is pressed down, the lower end of the shield 8 abuts against the vibration reduction mechanism 11 and drives the vibration reduction mechanism 11 to move. During the cutting operation, the cutting body 200 moves downward, and the front end of the dynamic shield 81 hits the vibration reduction mechanism 11, driving the vibration reduction mechanism 11 to move, which can absorb the impact force between the two and reduce vibration and noise.

[0053] The present invention is not limited to the above specific embodiments. A person skilled in the art can easily understand that there are many alternatives to the cutting device of the present invention without departing from the principle and scope of the present invention. The protection scope of the present invention shall be subject to the content of the claims.

Claims

1. A cutting device equipped with a cutting blade, the cutting device comprising a base, a frame fixed above the base, and a cutting body pivotally connected to the frame, the cutting body being supported on the base in an up-and-down swinging manner; the cutting body comprising a housing, a motor assembly housed in the housing, and a transmission assembly driven by the motor assembly and located at the axial front end of the motor assembly, the cutting blade being connected to the axial front end of the transmission assembly and driven by the transmission assembly to rotate; characterized in that: The cutting body comprises a shield which at least partially covers the cutting blade, and the base is provided with a vibration reduction mechanism. When the cutting body is pressed down, the lower end of the shield abuts against the vibration reduction mechanism and drives the vibration reduction mechanism to move.

2. The cutting device according to claim 1, characterized in that: The base is provided with an opening penetrating through the upper surface, and the vibration reduction mechanism is mounted to the opening.

3. The cutting device according to claim 2, characterized in that: The vibration reduction mechanism includes a container fixed to the opening, an elastic member connected to the container, and a baffle connected to the upper end of the elastic member. The upper end of the container is a notch, and the lower end of the elastic member is connected to the lower end of the container.

4. The cutting device according to claim 3, characterized in that: The shield comprises a fixed shield fixed to the shell and a dynamic shield rotatably connected to the fixed shield, and the dynamic shield rotates with the up and down swinging of the cutting body.

5. The cutting device according to claim 4, characterized in that: When the cutting body is pressed downward, the dynamic shield rotates downward, and the lower end of the dynamic shield abuts against the baffle plate and can press the baffle plate downward to compress the elastic member downward.

6. The cutting device according to claim 5, characterized in that: The lower end of the dynamic shield comprises a buffer, and the buffer abuts against the baffle as the dynamic shield rotates.

7. The cutting device according to claim 3, characterized in that: The elastic member is a spring, and the size of the outer periphery of the baffle is not greater than the size of the inner periphery of the containing body.

8. The cutting device according to claim 3, characterized in that: The containing body is made of metal material and is welded to the base.

9. The cutting device according to claim 6, characterized in that: The buffer is made of rubber or plastic.

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