CN110076667B - Combined tool - Google Patents

Abstract

The invention discloses a combined tool which comprises a driving mechanism and an output shaft, wherein the driving mechanism is connected with the output shaft and used for driving the output shaft to rotate, and the combined tool further comprises a sanding mechanism and a chamfering mechanism, wherein the sanding mechanism and the chamfering mechanism are respectively connected with two ends of the output shaft. The sanding mechanism and the chamfering mechanism are respectively arranged at two ends of the output shaft, so that the grinding function and the chamfering function are realized simultaneously, the required functions can be quickly switched on the same tool, the utilization rate of the combined tool is improved, and the cost is saved.

Description

Combined tool

Technical Field

The invention relates to a combination tool.

Background

Currently, the existing tools on the market are generally angle grinders for grinding or cutting the outside of a workpiece by matching a grinding wheel or a cutting blade at a working end, or chamfering machines for chamfering an inner hole or an outer circle by matching a chamfering working head or a chamfering working head at the working end. Both tools have only a single grinding or chamfering function. In many working sites, a tool having a grinding function and a tool having a chamfering function are required, and thus both the angle grinder and the chamfering machine are required to be provided. In this case, there are disadvantages in that, firstly, the replacement of the tools is troublesome and time is wasted, and secondly, the cost of providing both tools is high.

Disclosure of Invention

The invention aims to overcome the defects that in the prior art, a tool can only perform single grinding or chamfering, and under the condition that the tool can simultaneously grind or chamfer, the tool is simultaneously provided with an angle grinder and a chamfering machine, thereby being troublesome, wasting time, increasing cost and the like.

The invention solves the technical problems by the following technical scheme:

The utility model provides a combination tool, includes actuating mechanism and output shaft, actuating mechanism connect in the output shaft and be used for the drive the output shaft is rotatory, its characterized in that, combination tool still includes sanding mechanism and chamfer mechanism, sanding mechanism with chamfer mechanism connect respectively in the both ends of output shaft.

In this scheme, adopt above-mentioned structural style, with sand grinding mechanism and chamfer mechanism setting simultaneously at the both ends of output shaft, realize having grinding function and chamfer function simultaneously, can be on same instrument quick switch required function, improved combination tool's utilization ratio, save the cost.

Preferably, the combination tool further comprises a shield and a gear box, the output shaft penetrates through the gear box and is exposed out of the gear box, the chamfering mechanism and the sanding mechanism are located outside the gear box and are connected to two ends of the output shaft, the driving mechanism is connected to the gear box, one end of the shield is connected to the gear box, the other end of the shield is connected to the driving mechanism, a protection cavity is formed by the shield, the gear box and the driving mechanism, and the sanding mechanism is located in the protection cavity or the chamfering mechanism is located in the protection cavity.

In this scheme, adopt above-mentioned structural style, set up the guard shield and protect when being convenient for the operation, be in the operation state when sand grinding mechanism, set up the guard shield in chamfer mechanism one end, that is chamfer mechanism is located the protection intracavity promptly, prevents that chamfer mechanism from causing the injury to operating personnel, otherwise, be in the operation state when chamfer mechanism, set up the guard shield in sand grinding mechanism one end, prevent that sand grinding mechanism from causing the injury to operating personnel.

Preferably, the number of the output shafts is one, a gear is arranged on the outer peripheral surface of the output shafts, the driving mechanism comprises a driving motor, a driving wheel is arranged on a transmission shaft of the driving motor, and the driving wheel is meshed with the gear.

In this scheme, adopt above-mentioned structural style, the quantity of output shaft is one, promptly with sanding mechanism and chamfer mechanism setting on same output shaft, forms the sand mill/beveler of integral type. When the driving wheel on the driving motor drives the output shaft to rotate, the sanding mechanism and the chamfering mechanism simultaneously rotate.

Preferably, the number of the gears is two, and the two gears are arranged at intervals and are respectively positioned at two ends of the driving wheel and meshed with the driving wheel.

In this scheme, adopt above-mentioned structural style, set up the gear simultaneously at the both ends of action wheel, can reduce because the uneven vibration that causes of atress for the transmission is more steady, with messenger's chamfer or grinding quality are higher.

Preferably, the output shaft comprises a first output shaft and a second output shaft, the end part of the first output shaft is connected with the chamfering mechanism, the end part of the second output shaft is connected with the sand mill mechanism, and the driving mechanism is connected with the first output shaft and used for driving the first output shaft to rotate;

and/or the driving mechanism is connected to the second output shaft and used for driving the second output shaft to rotate.

In this scheme, adopt above-mentioned structural style, set up sanding mechanism and chamfer mechanism on two output shafts, namely split type sand mill/beveler, this kind of setting is more nimble, and chamfering mechanism and sanding mechanism can rotate simultaneously, also can be in the state of stopping when chamfering mechanism operation, or chamfering mechanism is in the state of stopping when the operation of sanding mechanism.

Preferably, the driving mechanism comprises a driving motor, a driving wheel is arranged on a transmission shaft of the driving motor, a first gear is arranged on the first output shaft, the first gear is meshed with the driving wheel, a second gear is arranged on the second output shaft, the second gear is meshed with the driving wheel, the combined tool further comprises an adjusting mechanism,

The adjusting mechanism can be abutted against the first gear and drive the first gear to move in a direction away from the driving wheel so as to separate the first gear from the driving wheel;

The adjusting mechanism can be abutted against the second gear and drive the second gear to move along the direction away from the driving wheel so as to separate the second gear from the driving wheel.

In the scheme, the first gear and the second gear are respectively arranged at two ends of the first output shaft and the second output shaft in the structural form, so that the first gear and the second gear can conveniently drive the first output shaft and the second output shaft to rotate under the driving force of the driving wheel. The first gear and the second gear can be separated from the driving wheel by the adjusting mechanism, so that the second output shaft stops rotating when the first output shaft rotates, and the first output shaft stops rotating when the second output shaft rotates.

Preferably, the adjusting mechanism comprises a knob and a deflector rod, and the deflector rod is connected with the knob and can rotate along with the knob so as to enable the deflector rod to abut against the first gear or the second gear.

In this scheme, adopt above-mentioned structural style, the driving lever is connected on the knob, supports the driving lever and leans on first gear or second gear through rotatory knob, promptly with the gear of action wheel meshing switch between first gear and second gear, realizes that the second output shaft stops rotating when first output shaft rotates, and the first output shaft stops rotating when the second output shaft rotates.

Preferably, the combination tool further comprises:

One side of the first gear is meshed with the driving wheel, and the first pressure spring is propped against the other side of the first gear;

the second pressure spring is meshed with the driving wheel on one side of the second gear, and the second pressure spring abuts against the other side of the second gear.

In this scheme, adopt above-mentioned structural style, adjustment mechanism is when switching the needs operation one end of chamfer mechanism and sanding mechanism, under the restoring force of first pressure spring or second pressure spring, is convenient for first gear or second gear and action wheel meshing.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.

The invention has the positive progress effects that: according to the combined tool, the sanding mechanism and the chamfering mechanism are respectively arranged at the two ends of the output shaft, so that the combined tool has the functions of grinding and chamfering simultaneously, the required functions can be quickly switched on the same tool, the utilization rate of the combined tool is improved, and the cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of a combination tool according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a combination tool according to embodiment 2 of the present invention.

Fig. 3 is a schematic view of another direction of the combination tool according to embodiment 2 of the present invention.

Fig. 4 is a schematic structural view of an adjusting mechanism according to embodiment 2 of the present invention.

Reference numerals illustrate:

Sanding mechanism 1

Grinding wheel 11

Platen one 12

Second pressing plate 13

Grinding wheel cover 14

Chamfering mechanism 2

Chamfering work head 21

Drive mechanism 3

Transmission shaft 31

Drive wheel 32

Housing 33

Output shaft 4

First gear 41

Second gear 42

First output shaft 43

Second output shaft 44

Clamp spring 45

Bearing one 46

Bearing two 47

Needle roller bearing 48

Adjusting mechanism 5

Spring 51

Button 52

Deflector rod 53

Knob 54

Hood 6

Hoop 61

Gear box 7

First compression spring 8

Second compression spring 9

Detailed Description

The invention will now be more fully described by way of example only and with reference to the accompanying drawings, but the invention is not thereby limited to the scope of the examples described.

Example 1

As shown in fig. 1, the combined tool according to the embodiment of the invention comprises a driving mechanism 3 and an output shaft 4, wherein the driving mechanism 3 is connected to the output shaft 4 and is used for driving the output shaft 4 to rotate, the combined tool further comprises a sanding mechanism 1 and a chamfering mechanism 2, and the sanding mechanism 1 and the chamfering mechanism 2 are respectively connected to two ends of the output shaft 4.

The sanding mechanism 1 and the chamfering mechanism 2 are arranged at two ends of the output shaft 4 simultaneously, so that the grinding function and the chamfering function are realized simultaneously, the required functions can be quickly switched on the same tool, the utilization rate of the combined tool is improved, and the cost is saved.

The combined tool further comprises a shield 6 and a gear box 7, wherein the output shaft 4 penetrates through the gear box 7 and is exposed out of the gear box 7, the chamfering mechanism 2 and the sanding mechanism 1 are located outside the gear box 7 and are connected to two ends of the output shaft 4, the driving mechanism 3 is connected to the gear box 7, one end of the shield 6 is connected to the gear box 7, the other end of the shield 6 is connected to the driving mechanism 3, the shield 6, the gear box 7 and the driving mechanism 3 form a protection cavity, the sanding mechanism 1 is located in the protection cavity, or the chamfering mechanism 2 is located in the protection cavity.

The number of the output shafts 4 is one, a gear is arranged on the outer peripheral surface of the output shaft 4, the driving mechanism 3 comprises a driving motor, a driving wheel 32 is arranged on a transmission shaft 31 of the driving motor, and the driving wheel 32 is meshed with the gear.

In this embodiment, as shown in fig. 1, a screw hole is provided on the outer periphery of the gear case 7, and one end of the shield is screwed with the gear case 7 through the screw hole. The other end of the shield 6 is welded with a hoop 61, a small gap is arranged on the hoop 61, a protruding part is arranged on the shell 33 of the driving mechanism 3, and the small gap on the hoop 61 is clamped with the protruding part on the shell 33. This forms a protective chamber between the shield 6, the gearbox 7 and the drive mechanism 3.

The guard shield 6 protects when being convenient for the operation, is in the operation state when sand grinding mechanism 1, sets up guard shield 6 at chamfer mechanism 2 one end, and chamfer mechanism 2 is located the protection intracavity promptly, prevents that chamfer mechanism 2 from causing the injury to operating personnel, otherwise, is in the operation state when chamfer mechanism 2, sets up guard shield 6 at sand grinding mechanism 1 one end, prevents that sand grinding mechanism 1 from causing the injury to operating personnel.

In the present embodiment, at this end of the chamfering mechanism 2, the output shaft 4 is fixed to the gear box 7 through a bearing one 46, and the chamfering head 21 on the chamfering mechanism 2 is screwed to the output shaft 4. At the end of the sanding mechanism 1, the output shaft 4 is fixed with the gear box 7 through a second bearing 47, a grinding wheel 11 or a cutting blade on the sanding mechanism 1 is fixed on the output shaft 4 through a first pressing plate 12 and a second pressing plate 13, and a grinding wheel cover 14 is further arranged on the periphery of the grinding wheel 11 or the cutting blade to prevent the grinding wheel 11 or the cutting blade rotating in the operation process from injuring an operator.

The number of the gears is two, and the two gears are arranged at intervals and are respectively positioned at two ends of the driving wheel 32 and meshed with the driving wheel 32.

In this embodiment, two gears are connected to the output shaft 4 by a half-round key. A snap spring 45 is provided on one side of the two gears for limiting the movement of the gears in the axial direction. Gears are arranged at the two ends of the driving wheel simultaneously, so that vibration caused by uneven stress can be reduced, transmission is stable, and chamfering or grinding quality is high.

In the present embodiment, the number of the output shafts 4 is one, that is, the sanding mechanism 1 and the chamfering mechanism 2 are provided on the same output shaft 4, forming an integrated sanding/chamfering machine. When the driving wheel 32 on the driving motor 3 drives the output shaft 4 to rotate, the sanding mechanism 1 and the chamfering mechanism 2 simultaneously rotate. When the chamfering mechanism 2 is required to work, the grinding wheel 11 or the cutting piece and the grinding wheel cover 14 on the sanding mechanism 1 are detached, and the protecting cover 6 is arranged at one end of the sanding mechanism 1, so that operators are prevented from being injured by unexpected operation. Similarly, when the sanding mechanism 1 is required to work, the shield 6 is mounted at one end of the chamfering mechanism 2 for protection.

Example 2

As shown in fig. 2 to 4, this embodiment is substantially the same as embodiment 1 except that: the output shaft 4 comprises a first output shaft 43 and a second output shaft 44, the end part of the first output shaft 43 is connected with the chamfering mechanism 2, the end part of the second output shaft 44 is connected with the sanding mechanism 1, and the driving mechanism 3 is connected with the first output shaft 43 and used for driving the first output shaft 43 to rotate; and/or the driving mechanism 3 is connected to the second output shaft 44 and is used for driving the second output shaft 44 to rotate.

The number and the relative positions of the first output shaft 43 and the second output shaft 44 are not limited, and the first output shaft 43 and the second output shaft 44 may be on the same straight line, may be parallel to each other, or may be disposed at an angle to each other.

In the present embodiment, the number of the first output shafts 43 and the second output shafts 44 is 1, and the first output shafts 43 and the second output shafts 44 are on the same straight line. The sanding mechanism 1 and the chamfering mechanism 2 are arranged on the two output shafts 4, namely the split type sanding/chamfering machine, the arrangement is more flexible, the chamfering mechanism 2 and the sanding mechanism 1 can rotate simultaneously, and the sanding mechanism 1 can be in a stop state when the chamfering mechanism 2 works, or the chamfering mechanism 2 is in a stop state when the sanding mechanism 1 works.

The driving mechanism 3 comprises a driving motor, a driving wheel 32 is arranged on a transmission shaft 31 of the driving motor, a first gear 41 is arranged on a first output shaft 43, the first gear 41 is meshed with the driving wheel 32, a second gear 42 is arranged on a second output shaft 44, the second gear 42 is meshed with the driving wheel 32, the combined tool further comprises an adjusting mechanism 5, and the adjusting mechanism 5 can abut against the first gear 41 and drive the first gear 41 to move along a direction far away from the driving wheel 32 so as to separate the first gear 41 from the driving wheel 32; the adjustment mechanism 5 is capable of abutting against the second gear 42 and driving the second gear 42 to move in a direction away from the drive wheel 32 to separate the second gear 42 from the drive wheel 32.

A first gear 41 and a second gear 42 are respectively provided at both ends of the first output shaft 43 and the second output shaft 44, so that the first gear 41 and the second gear 42 drive the first output shaft 41 and the second output shaft 42 to rotate under the driving force of the driving wheel 32. The adjusting mechanism 5 can separate the first gear 41 and the second gear 42 from the driving wheel 32, so that the rotation of the second output shaft 44 is stopped when the first output shaft 43 rotates, and the rotation of the first output shaft 43 is stopped when the second output shaft 44 rotates.

The adjusting mechanism 5 includes a knob 54 and a lever 53, the lever 53 being connected to the knob 54 and being rotatable with the knob 54 to bring the lever 53 into abutment against the first gear 41 or against the second gear 42.

The shift lever 53 is connected to the knob 54, and the rotation of the second output shaft 44 is stopped when the first output shaft 43 rotates and the rotation of the first output shaft 43 is stopped when the second output shaft 44 rotates by rotating the knob 54 to bring the shift lever 53 into abutment with the first gear 41 or the second gear 42, that is, switching the gear engaged with the driver 32 between the first gear 41 and the second gear 42.

The combination tool in the present embodiment further includes: the first pressure spring 8 and the second pressure spring 9, one side of the first gear 41 is meshed with the driving wheel 32, and the first pressure spring 8 is abutted against the other side of the first gear 41; one side of the second gear 42 is meshed with the driving wheel 32, and the second compression spring 9 abuts against the other side of the second gear 42.

In this embodiment, one end of the first compression spring 8 abuts against one side of the first gear 41, the other end abuts against one end of the first bearing 46, the first output shaft 43 is connected to the gear box 7 through the first bearing 46, and the inner ring of the first bearing 46 can move axially relative to the outer ring, that is, the first output shaft 43 can move axially relative to the gear box 7. One end of the second compression spring 9 abuts against one side of the second gear 42, the other end abuts against one end of the second bearing 47, the second output shaft 44 is connected with the gear box 7 through the second bearing 47, and the inner ring of the second bearing 47 can axially move relative to the outer ring, that is, the second output shaft 44 can axially move relative to the gear box 7. In the present embodiment, a needle bearing 48 is connected between the first output shaft 43 and the second output shaft 44, and an inner ring of the needle bearing 48 is axially movable to realize that the first output shaft 43 and the second output shaft 44 can move in a direction approaching or separating from the drive wheel 32. The inner race of the needle bearing 48 that mates with the first output shaft 43 and the second output shaft 44 is split to enable the first output shaft 43 and the second output shaft 44 to rotate simultaneously or one output shaft to rotate the other output shaft without rotating.

In this embodiment, a knob 54 of the adjusting mechanism 5 is provided with a button 52, as shown in fig. 4, the end surface of the knob 54 is provided with the button 52, a spring 51 is installed between the button 52 and the knob 54, and the button 52 can pass through the knob 54 to be clamped with the gear box 7. The knob 54 is connected with a deflector rod 53, the button 52 is pressed, the button 52 is separated from the gear box 7, at the moment, the knob 54 can rotate, the deflector rod 53 rotates along with the knob 54, and the deflector rod 53 can switch the working states of the chamfering mechanism 2 and the sanding mechanism 1 along with the rotation of the knob 54.

When the chamfering mechanism 2 is required to work, the button 52 is pressed, the button 52 is separated from the gear box 7, then the knob 54 is rotated clockwise, the deflector 53 abuts against the second gear 42, the second gear 42 and the second output shaft 44 move in the direction away from the driving wheel 32, the second pressure spring 9 is in a compressed state, the second gear 42 is separated from the driving wheel 32, at this time, under the restoring force of the first pressure spring 8, the first gear 41 and the first output shaft 43 move in the direction close to the driving wheel 32, the first gear 41 is meshed with the driving wheel 32, and the driving wheel 32 can drive the first gear 41 to rotate, so that the rotation of the first output shaft 43 is realized. When the button is pressed again, the button 52 engages with the gear case 7 by the restoring force of the spring 51, and the knob 54 is locked and cannot be rotated. Similarly, when the sanding mechanism 1 is required to work, the rotation direction of the knob 54 is anticlockwise as the working principle is the same.

In this embodiment, when the adjustment mechanism 5 switches the chamfering mechanism 2 and the end of the sanding mechanism 1 that needs to be operated, the first gear 41 or the second gear 42 is facilitated to mesh with the driving wheel 32 under the restoring force of the first compression spring or the second compression spring.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (5)

1. The combined tool comprises a driving mechanism and an output shaft, wherein the driving mechanism is connected with the output shaft and is used for driving the output shaft to rotate, and the combined tool is characterized by further comprising a sanding mechanism and a chamfering mechanism, and the sanding mechanism and the chamfering mechanism are respectively connected with two ends of the output shaft;

The output shaft comprises a first output shaft and a second output shaft, the end part of the first output shaft is connected with the chamfering mechanism, the end part of the second output shaft is connected with the sand mill mechanism, and the driving mechanism is connected with the first output shaft and is used for driving the first output shaft to rotate;

and/or the driving mechanism is connected to the second output shaft and used for driving the second output shaft to rotate.

2. The combination tool of claim 1, further comprising a shield and a gear box, wherein the output shaft passes through the gear box and is exposed to the gear box, the chamfering mechanism and the sanding mechanism are located outside the gear box and are connected to two ends of the output shaft, the driving mechanism is connected to the gear box, one end of the shield is connected to the gear box, the other end of the shield is connected to the driving mechanism, the shield, the gear box and the driving mechanism form a protection cavity, and the sanding mechanism is located in the protection cavity or the chamfering mechanism is located in the protection cavity.

3. The combination tool of claim 1, wherein the drive mechanism comprises a drive motor, a drive wheel is arranged on a transmission shaft of the drive motor, a first gear is arranged on the first output shaft, the first gear is meshed with the drive wheel, a second gear is arranged on the second output shaft, the second gear is meshed with the drive wheel, and the combination tool further comprises an adjusting mechanism,

The adjusting mechanism can be abutted against the first gear and drive the first gear to move in a direction away from the driving wheel so as to separate the first gear from the driving wheel;

The adjusting mechanism can be abutted against the second gear and drive the second gear to move along the direction away from the driving wheel so as to separate the second gear from the driving wheel.

4. A combination according to claim 3, wherein the adjustment mechanism comprises a knob and a lever coupled to the knob and rotatable therewith to urge the lever against the first gear or against the second gear.

5. A cluster tool according to claim 3, wherein the cluster tool further comprises:

One side of the first gear is meshed with the driving wheel, and the first pressure spring is propped against the other side of the first gear;

the second pressure spring is meshed with the driving wheel on one side of the second gear, and the second pressure spring abuts against the other side of the second gear.