CN107791130B

CN107791130B - Multifunctional sander

Info

Publication number: CN107791130B
Application number: CN201610807750.9A
Authority: CN
Inventors: 吉绍山; 齐献山; 陈国军
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2016-09-07
Filing date: 2016-09-07
Publication date: 2023-12-08
Anticipated expiration: 2036-09-07
Also published as: CN107791130A

Abstract

The invention discloses a multifunctional sander, which comprises a shell, a switching mechanism and a bottom plate, wherein the switching mechanism comprises a locking sliding block, and the locking sliding block is movably arranged on the shell to be matched with or separated from the bottom plate. The multifunctional sander can be matched with or separated from the bottom plate through the movement of the locking sliding block relative to the shell, so that free rotation of the bottom plate is limited or allowed, switching between square sand and round sand is realized, the sander is convenient to use, the bottom plate does not need to be taken down, and the problem of losing the bottom plate does not exist.

Description

Multifunctional sander

Technical Field

The invention relates to the technical field of power tools, in particular to a multifunctional sander.

Background

The sanding machine generally comprises round sand, square sand and the like, wherein a sanding bottom plate of the round sand can freely rotate relative to the axis of an eccentric shaft, the eccentric shaft is eccentrically arranged relative to a motor shaft and rotates along with the motor shaft, and the sanding bottom plate does irregular orbital motion in the working process of the motor and is used for grinding a large amount of materials. The sanding sole plate of square sand cannot rotate freely relative to the axis of the eccentric shaft, so that the sanding sole plate can only perform regular orbital motion, and is suitable for grinding smaller amounts of materials, for example for fine machining or finishing. If a user wishes to have both fine grinding and fine grinding capabilities, two different tools must be provided for both the round and square sanders.

At present, two functions of round sand and square sand are realized on the same sander by replacing the matching of the sanding bottom plate and the connecting device. However, when the sanding machine is used for switching round sand and square sand, the bottom plate needs to be replaced, so that the sanding machine is very inconvenient to use, and the replaced bottom plate is easy to lose.

Disclosure of Invention

Based on the problems, the multifunctional sander is inconvenient to use and the bottom plate is easy to lose, and the multifunctional sander is convenient to use and free from the problem of bottom plate loss.

The utility model provides a multifunctional sander, includes casing, shifter and bottom plate, shifter includes the locking slider, the locking slider movably locates the casing in order to with the bottom plate cooperation or break away from.

The multifunctional sander can be matched with or separated from the bottom plate through the movement of the locking sliding block relative to the shell, so that free rotation of the bottom plate is limited or allowed, switching between square sand and round sand is realized, the sander is convenient to use, the bottom plate does not need to be taken down, and the problem of losing the bottom plate does not exist.

In one embodiment, the movement direction of the locking slider is substantially perpendicular to the base plate.

In one embodiment, the casing includes a mounting portion for mounting the switching mechanism, the locking slider is movably disposed on the mounting portion, the mounting portion is provided with a sliding groove, and the locking slider is at least partially disposed in the sliding groove.

In one embodiment, the locking slider includes a main body, and an operating portion protruding from the main body, where the operating portion protrudes from the mounting portion of the housing, so as to facilitate the operation of the locking slider to move relative to the housing, and the mounting portion is further provided with an opening communicating with the sliding groove, and the operating portion is movably disposed in the opening.

In one embodiment, the switching mechanism further includes a positioning pin, and the locking slider is provided with two first matching parts arranged at intervals, and the positioning pin is selectively matched with one of the two first matching parts, so that the locking slider is limited to be in the first position or the second position.

In one embodiment, the switching mechanism further includes an elastic member that applies a force that brings the positioning pin and the locking slider together.

In one embodiment, the positioning pin includes a second matching portion, a sleeving portion and an abutting portion, the elastic member is sleeved on the sleeving portion, one end of the elastic member abuts against the casing, the other end of the elastic member abuts against the abutting portion, and the second matching portion is used for matching with the first matching portion.

In one embodiment, the mounting portion of the housing further includes a receiving cavity, the elastic member is disposed in the receiving cavity, the positioning pin is movably disposed in the receiving cavity, and a portion of the positioning pin may extend out of the receiving cavity to be matched with the locking slider.

In one embodiment, the bottom plate is provided with a third matching part, and the locking sliding block is provided with a fourth matching part matched with or separated from the third matching part so as to limit or allow the rotation of the bottom plate.

In one embodiment, the device further comprises a driving mechanism, wherein the driving mechanism comprises a motor, an output shaft driven by the motor and an eccentric part eccentrically connected with the output shaft, and the bottom plate is connected with the eccentric part.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of a multifunctional sander according to the present invention;

FIG. 2 is a first sectional view of the multifunction sander of FIG. 1; a kind of electronic device with high-pressure air-conditioning system

Fig. 3 is a second state sectional view of the multifunctional sander of fig. 1.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be present therebetween.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, a multifunctional sander 100 according to a preferred embodiment of the present invention includes a housing 10, a switching mechanism 30, and a base plate 50. The switching mechanism 30 includes a lock slider 302, and the lock slider 302 is movably provided to the casing 10 to be engaged with or disengaged from the bottom plate 50. It will be appreciated that the bottom plate 50 may be square or circular.

The multifunctional sander can be matched with or separated from the bottom plate 50 through the movement of the locking sliding block 302 relative to the machine shell 10, so that free rotation of the bottom plate 50 is limited or allowed, switching between square sand and round sand is realized, the sander is convenient to use, the bottom plate 50 does not need to be taken down, and the problem of losing the bottom plate 50 does not exist.

In this embodiment, the direction of movement of the lock slide 302 is substantially perpendicular to the base plate 50. When the round sand and square sand working modes are switched, only the locking sliding block 302 needs to be shifted in the direction vertical to the bottom plate 50, and the operation is very convenient.

In the present embodiment, the casing 10 includes the mounting portion 101 to which the switching mechanism 30 is mounted, and the lock slider 302 is movably provided to the mounting portion 101. Specifically, the mounting portion 101 is provided with a sliding groove 1012, and the lock slider 302 is at least partially located within the sliding groove 1012. In this embodiment, the sliding groove 1012 is defined by two opposing and spaced apart sidewalls.

In this embodiment, the locking slider 302 includes a main body 3022 and an operating portion 3024 protruding from the main body 3022, and the operating portion 3024 protrudes from the mounting portion 101 of the housing 10 to facilitate the movement of the locking slider 302 with respect to the housing 10. Specifically, the mounting portion 101 is further provided with an opening 1014 communicating with the sliding groove 1012, and the operation portion 3024 is movably provided in the opening 1014 and exposed outside the housing 10 from the opening 1014.

In this embodiment, the switching mechanism 30 further includes a positioning pin 304, where two first engaging portions 3026 are disposed on the locking slider 302 at intervals, and the positioning pin 304 selectively engages with one of the two first engaging portions 3026, so as to define the locking slider 302 in the first position or the second position. In this way, the locking slide 302 can be locked in different positions to prevent the locking slide 302 from moving randomly, ensuring that the locking slide 302 is stably maintained in a mated or disengaged state with the chassis 50. Specifically, the first mating portion 3026 is a groove, and it is understood that the first mating portion 3026 may be a protrusion, and a groove corresponding to the first mating portion may be formed on the positioning pin 304. More specifically, the first mating portion 3026 is a curved groove, and an end of the positioning pin 304 facing the locking slider 302 is curved convex, so that the positioning pin 304 can slide out of or into the first mating portion 3026 more smoothly.

In this embodiment, the switching mechanism 30 further includes an elastic member 306, and the elastic member 306 applies a force for bringing the positioning pin 304 and the locking slider 302 together. Specifically, the elastic member 306 elastically abuts between the casing 10 and the positioning pin 304. Specifically, the elastic member 306 may be a compression spring. By providing the resilient member 306, the detent pin 304 automatically engages the locking slide 302 after the locking slide 302 is moved into place.

In this embodiment, the positioning pin 304 includes a second fitting portion 3042, a sleeve portion 3044, and an abutting portion 3046, the elastic member 306 is sleeved on the sleeve portion 3044, one end of the elastic member abuts against the casing 10, the other end abuts against the abutting portion 3046, and the second fitting portion 3042 is configured to be fitted with the first fitting portion 3026.

In this embodiment, the mounting portion 101 of the housing 10 further includes a receiving cavity 1016 in communication with the sliding groove 1012, the elastic member 306 is disposed in the receiving cavity 1016, the positioning pin 304 is movably disposed in the receiving cavity 1016, and a portion thereof can extend out of the receiving cavity 1016 to be engaged with the locking slider 302.

In this embodiment, the bottom plate 50 is provided with a third mating portion 501, and the locking slider 302 is provided with a fourth mating portion 3028 that mates with or disengages from the third mating portion 501 to limit or allow the rotation of the bottom plate 50. By the sliding of the lock slider 302, it is possible to realize that the fourth engagement portion 3028 can be engaged with or disengaged from the third engagement portion 501. Specifically, the third mating portion 501 is a groove. More specifically, the third fitting portion 501 is a groove surrounded by the U-shaped protrusion 502. The fourth mating portion 3028 is a tongue-like extension provided at one end of the lock slider 302.

In this embodiment, the multifunctional sander further comprises a driving mechanism 70, wherein the driving mechanism 70 comprises a motor 702, an output shaft 704 driven by the motor 702, and an eccentric member 706 eccentrically connected to the output shaft 704, and the base plate 50 is connected to the eccentric member 706.

In this embodiment, the multifunctional sander further includes a brake disc 90, where the brake disc 90 is fixed relative to the housing 10 and disposed toward the bottom plate 50.

When the multifunctional sander of the present embodiment is in the round sand mode, i.e. in the first state, referring to fig. 2, the fourth mating portion 3028 of the locking slider 302 is disengaged from the third mating portion 501 of the bottom plate 50, the operating portion 3024 of the locking slider 302 is located at the upper end of the opening 1014, and the positioning pin 304 is mated with the first mating portion 3026 of the locking slider 302 located below. When the multifunctional sander needs to be switched to the square sand mode, referring to fig. 3, the locking slide block 302 is slid downwards, the positioning pin 304 is separated from the first matching portion 3026 of the locking slide block 302, the elastic member 306 is compressed, after the locking slide block 302 slides to a predetermined position, the fourth matching portion 3028 of the locking slide block 302 is matched with the third matching portion 501 of the bottom plate 50, the operating portion 3024 of the locking slide block 302 is located at the lower end of the opening 1014, at this time, the locking slide block 302 is released, and the elastic force of the elastic member 306 enables the positioning pin 304 to be automatically matched with the first matching portion 3026 of the locking slide block 302, which is located above, so as to achieve positioning.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The multifunctional sander is characterized by comprising a shell, a switching mechanism and a bottom plate, wherein the shell comprises a mounting part for mounting the switching mechanism, the switching mechanism comprises a locking slide block and a positioning pin, the locking slide block is movably arranged on the mounting part to be matched with or separated from the bottom plate, two first matching parts which are arranged at intervals are arranged on the locking slide block, and the positioning pin is selectively matched with one of the two first matching parts, so that the locking slide block is limited to be in a first position or a second position; the locking slide block comprises a main body and an operating part protruding from the main body, and the operating part protrudes out of the mounting part of the machine shell so as to facilitate the locking slide block to be operated to move relative to the machine shell.

2. The machine of claim 1, wherein the direction of movement of the locking slide is substantially perpendicular to the base plate.

3. The machine of claim 1, wherein the mounting portion is provided with a sliding slot, and the locking slide is at least partially positioned within the sliding slot.

4. A multifunctional sander as set forth in claim 3, wherein said mounting portion is further provided with an opening communicating with said sliding groove, and said operating portion is movably disposed in said opening.

5. The machine of claim 1, wherein the switching mechanism further comprises an elastic member that applies a force that draws the locating pin and the locking slide together.

6. The machine of claim 5, wherein the positioning pin comprises a second mating portion, a sleeve-joint portion and an abutting portion, the elastic member is sleeved on the sleeve-joint portion, one end of the elastic member abuts against the casing, the other end of the elastic member abuts against the abutting portion, and the second mating portion is used for being mated with the first mating portion.

7. The machine of claim 5, wherein the mounting portion of the housing further comprises a receiving cavity, the resilient member is disposed within the receiving cavity, the locating pin is movably disposed within the receiving cavity, and a portion of the locating pin is extendable out of the receiving cavity to mate with the locking slide.

8. The multifunctional sander as set forth in claim 1, wherein the base plate is provided with a third engaging portion, and the locking slider is provided with a fourth engaging portion engaged with or disengaged from the third engaging portion to restrict or permit rotation of the base plate.

9. The machine of claim 1 further comprising a drive mechanism including a motor, an output shaft driven by the motor, and an eccentric member eccentrically coupled to the output shaft, the base plate being coupled to the eccentric member.