CN201609906U

CN201609906U - Shearing tool

Info

Publication number: CN201609906U
Application number: CN2010200033888U
Authority: CN
Inventors: 李祥庆; 张士松
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2010-10-20
Anticipated expiration: 2020-01-06

Abstract

The utility model relates to a shearing tool which is connected on a handheld swinging power tool in a detachable way; the swinging power tool comprises a head shell (12) and an output shaft (13) extending from the interior of the head shell (12) and has an axle center line, wherein the output shaft (13) can swing around the axle center line; the shearing tool comprises a connecting seat (2) connected with the head shell (12), a fixed blade (4) connected on the connecting seat (2), a movable blade (5) moving relative to the fixed blade (4), and a sealing cover (3) fixed relative to the connecting seat (2); and the movable blade (5) is contained between the connecting seat (2) and the sealing cover (3). The shearing tool is added with the sealing cover and leads the movable blade to be contained between the sealing cover and the connecting seat, thus simplifying the structure of a connecting disc needed by the prior art, avoiding the movable blade being fixed and connected in advance, and being convenient for operation.

Description

Shearing tool

Technical field

The utility model relates to a kind of shearing tool, the shearing tool on especially a kind of dismountable swing power tool that is connected hand-held.

Background technology

Chinese patent application CN200910127475.6 has disclosed a kind of shearing tool.This shearing tool is dismountable to be connected on the swing power tool of hand-held, comprises that cutting blade with ledger-plate and the Connection Block that is used to be connected many driven machines, be provided with a terminal pad in Connection Block, and terminal pad can rotate relatively with respect to Connection Block.Because cutting blade is to be connected on this terminal pad equally, thereby can rotate together thereupon, ledger-plate then is fixedly coupled on Connection Block.

When this shearing tool is connected on the swing power tool, terminal pad links together with the output shaft of swing power tool, because the output shaft of swing power tool is done oscillating motion around self axis, output shaft then can drive terminal pad and cutting blade and together do oscillating motion around the axis of output shaft, simultaneously, because ledger-plate is fixed, makes the relative ledger-plate of cutting blade produce swing, thereby realize opening in the shear action with closed.

But the structure of this shearing tool is comparatively complicated, also is provided with terminal pad in relative rotation in Connection Block, and cutting blade needs to link together with terminal pad in advance, and complex operation uses also not convenient.

For this reason, above-mentioned shearing tool is necessary further improvement in fact.

The utility model content

The purpose of this utility model is to provide a kind of shearing tool, and is simple in structure, easy to use.

For achieving the above object, the utility model provides a kind of shearing tool, on dismountable swing power tool that is connected a kind of hand-held, the output shaft that described swing power tool comprises head capsule and extends in the head capsule with axial line, and output shaft can be done oscillating motion around axial line, described shearing tool comprises the Connection Block that is connected with head capsule, be connected the ledger-plate on the Connection Block, with cutting blade with respect to the ledger-plate activity, described shearing tool also comprises the capping fixing with respect to Connection Block, and described cutting blade is housed between described Connection Block and the capping.

As improvement to such scheme:

Described capping is circular, forms first groove, second groove and cannelure on its end face, and wherein, first groove and second groove are ladder-like arranged, and cannelure is positioned at the annular center position of capping.

Described cutting blade comprises installation portion, dynamic cutter head and is connected and installed portion and the connecting rod of dynamic cutter head that wherein installation portion is provided with the installing hole that connects described output shaft.

Described installation portion is rounded, and its diameter is less than the diameter of cannelure, and described installation portion is housed in the described cannelure.

Described connecting rod is rectangle, and its width is less than the width of first groove, and described connecting rod is contained in described first groove.

Described Connection Block comprises pedestal and the locating cover that extends on pedestal, described pedestal is circular, and the inside of its ring-type is provided with race ring, and the outside of ring-type is formed with some bolt blocks along the vertical direction of head capsule.

Described ledger-plate comprises connecting portion, stationary knife head and the kink that connects connecting portion and stationary knife head, and described connecting portion is provided with bolt hole, and bolt block passes in described bolt hole and ledger-plate is fixedly coupled on Connection Block.

The width of described connecting portion is less than the width of second groove in the described capping, and described connecting portion is housed in described second groove.

Also be provided with locating slot in the described capping, also be provided with reference column on the described Connection Block, also be provided with locating hole on the connecting portion of described ledger-plate, described reference column passes locating hole and is inserted in the locating slot.

The installation portion of described cutting blade is that end face contacts with race ring on the Connection Block, and simultaneously, dynamic cutter head is on the stationary knife head and the position between the connecting portion of ledger-plate.

Shearing tool in the utility model by having increased capping and cutting blade being housed between capping and the Connection Block, has been simplified the structure that needs terminal pad in the prior art, and having avoided need be fixedly connected with cutting blade in advance, makes operability be able to facility.

Description of drawings

Fig. 1 is in the preferred embodiment of the present utility model, adopts the stereogram of the swing power tool of shearing tool, and the swing power tool in the diagram is that side direction is used.

Fig. 2 is the stereogram of the head capsule of the swing power tool of connection shearing tool.

Fig. 3 is the stereogram of shearing tool.

Fig. 4 is the three-dimensional explosive view of shearing tool.

Fig. 5 is the vertical view of Connection Block in the shearing tool.

Fig. 6 is that the A of Fig. 5 is to view.

Fig. 7 is the stereogram (back side) of capping in the shearing tool.

Fig. 8 is the vertical view (back side) of capping.

Fig. 9 is connected the front view of swinging on the power tool for shearing tool.

Figure 10 is connected the lateral plan of swinging on the power tool for shearing tool.

Figure 11 is the user mode reference diagram of shearing tool, and at this moment, cutting blade moves the position of top as shown in the figure with respect to ledger-plate.

Figure 12 is the user mode reference diagram of shearing tool, and at this moment, cutting blade does not produce mobile with respect to ledger-plate.

Figure 13 is the user mode reference diagram of shearing tool, and at this moment, cutting blade moves the position of below as shown in the figure with respect to ledger-plate.

Figure 14 is the B-B line cross section view of Figure 11.

Related elements reference numeral in the diagram is as follows:

1, shearing tool 2, Connection Block 3, capping

4, ledger-plate 5, cutting blade 10, swing power tool

11, casing 12, head capsule 13, output shaft

131, flange 14, cable 21, pedestal

22, locating cover 221, U type guard shield 222, arc guard shield

23, race ring 24, bolt block 25, reference column

31, first groove 32, second groove 33, cannelure

34, screw 35, locating slot 41, connecting portion

42, stationary knife head 43, kink 44, bolt hole

45, locating hole 46, cutting edge 51, installation portion

52, dynamic cutter head 53, connecting rod 54, installing hole

55, elongated slot 56, cutting edge axial line X

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

See also Fig. 1, a kind of shearing tool 1 that is applied on the swing power tool is applicable to shearing manipulation.This swing power power tool is appointed as label 10, comprises tubular casing 11 and the head capsule 12 that roughly is the angle setting that is connected casing 11 front ends (left side is defined as front end among Fig. 1), and output shaft 13 extends in head capsule 12.As shown in Figure 2, the free end of this output shaft 13 is regular hexagon, and has axial line X.The free end of output shaft 13 flange that also is formed with ring-type 131 radially.

Please continue to consult Fig. 1, in the casing 11 of this swing power tool 10, be provided with the transmission component (figure does not show) of motor that driving force is provided (figure does not show) and driving torque, be connected with cable 14, be used for providing electric power to motor in the rear end of casing 11.After motor was connected and produced driving force, the moment of torsion of driving force was passed to output shaft 13 through transmission component.Under the effect of moment of torsion, output shaft 13 is done oscillating motion around axial line X, and swaying direction is shown in the double-head arrow A-A direction among Fig. 1.

See also Fig. 3 to Fig. 5, shearing tool 1 is the additional element that is connected on the head capsule 12, belongs to dismountable annex that is connected on the head capsule 12.This shearing tool 1 comprise Connection Block 2, the capping 3 fixing, be connected the ledger-plate 4 on the Connection Block 2 and be housed in Connection Block 2 with respect to Connection Block 2 and capping 3 between the cutting blade 5 with respect to ledger-plate 4 activities.

Connection Block 2 comprises pedestal 21 that roughly is circular and the locating cover 22 that extends on pedestal 21.Be positioned at the inside of circular pedestal 21, the fixing race ring 23 that is provided with, race ring 23 adopts metal materials to make, the flange 131 on its radius size and the output shaft 13 is suitable, make flange 131 can be housed in completely race ring 23 interior and the two be tight contact.Be positioned at the outside of pedestal 21, be formed with some bolt blocks 24 along the vertical direction of head capsule 12, in the present embodiment, such bolt block 24 is three, and evenly distributes around pedestal 21.In addition, also be provided with a reference column 25 on the Connection Block 2, be used for and capping 3 location and installation.

See also Fig. 6 and Fig. 7, the latter half of the shape of locating cover 22 and head capsule 12 is roughly suitable, and its longitudinally along head capsule 12 is formed with U type guard shield 221, and is same, is formed with arc guard shield 222 along the vertical direction of head capsule 12.Like this, this locating cover 22 can be coated on the below of head capsule 12, because the acting in conjunction of U type guard shield 221 and arc guard shield 222, Connection Block 2 can be positioned at the below of head capsule 12 fast, and is not easy to come off.

Please continue to consult Fig. 5, ledger-plate 4 is fixedly coupled on Connection Block 2, comprise connecting portion 41 and stationary knife head 42, between connecting portion 41 and the stationary knife head 42 by kink 43 connect make connecting portion 41 and stationary knife head 42 lay respectively at different planes in, the purpose of doing like this is in order to reserve the installation site for cutting blade 5.On connecting portion 41, divide other to be provided with bolt hole 44 and locating hole 45, and bolt block 24 pass bolt hole 44 and ledger-plate 4 is fixedly connected on the Connection Block 2, reference column 25 passes 45 pairs of ledger-plates 4 of locating hole and plays the assist location effect.On stationary knife head 42, be formed with cutting edge 46 towards the direction of Connection Block 2.

Cutting blade 5 comprises installation portion 51, dynamic cutter head 52 and is connected and installed portion 51 and the connecting rod 53 of dynamic cutter head 52, wherein installation portion 51 is roughly rounded, and have and be orthohexagonal installing hole 54, be used for connecting with the free-ended regular hexagon of output shaft 13, connecting rod 53 is rectangle, and width is d, and it is provided with the elongated slot 55 that is used for weight reduction, and on the dynamic cutter head 52, be formed with cutting edge 56 towards the direction of stationary knife head 42.Therefore the cutting edge 46 of stationary knife head 42 and the cutting edge of dynamic cutter head 52 56 be and be oppositely arranged, when wherein dynamic cutter head 52 produce with respect to stationary knife head 42 move after, promptly can realize shear action between the two.

See also Fig. 8, capping 3 is circular, bolt block 24 on the corresponding Connection Block 2 is provided with some screws 34, and on end face, form stepped, comprise first groove 31 that is used to accommodate cutting blade 5, with second groove 32 that is used to accommodate ledger-plate 4, and the cannelure 33 that is used to accommodate the installation portion 51 of cutting blade 5.Need to prove that the width D 1 of first groove 31 is greater than the width d of the connecting rod 53 of cutting blade 5, thereby the swing of cutting blade 5 is limited within the width D 1; The width D 2 of second groove 32 is slightly larger than the connecting portion 41 of ledger-plate 4; The diameter D3 of cannelure 33 is slightly larger than the installation portion 51 of cutting blade 5.In addition, in capping 3, also be provided with the locating slot 35 that is used to locate, insert fixing for the reference column on the Connection Block 2 25.

When using, the user is placed on cutting blade 5 on the Connection Block 2, and at this moment, dynamic cutter head 52 is between the connecting portion 41 of stationary knife head 42 and ledger-plate 4, and the installation portion 51 of cutting blade 5 contacts with race ring 23 end faces on the Connection Block 2.The user is with capping 3 corresponding installations then, be that reference column 25 inserts locating slot 35 in the capping 3, the connecting rod 53 of cutting blade 5 is housed in first groove 31 of capping 3, the bolt block 24 on the screw 34 corresponding Connection Blocks 2, and by screw capping 3 is tightened and to be fixed on the Connection Block 2.Like this, when cutting blade 5 is swung with respect to ledger-plate 4, the swing that the installation portion 51 of cutting blade 5 and the race ring on the Connection Block 2 23 produce on the end faces, amplitude of fluctuation is subject to the width D 1 of first groove 31 in the capping 3.

See also Fig. 9 to Figure 10 and Figure 14, when this shearing tool 1 was connected on the swing power tool 10, the installing hole 54 on the cutting blade 5 connected together with output shaft 13, and the flange 131 on race ring 23 and the output shaft 13 connects.When output shaft 13 is done oscillating motion, can drive the cutting blade 5 that is connected on the output shaft 13 and also do oscillating motion, simultaneously, 4 of ledger-plates maintain static.46,56 staggered the contacting of stationary knife head 42 between the two and the cutting edge on the dynamic cutter head 52, and dynamic cutter head 52 is with respect to 42 swings of stationary knife head, thus realize shear action.

See also Figure 11 to Figure 13, be the operation principle schematic diagram of this shearing tool.As shown in figure 12, when swing power tool 10 did not start, output shaft 13 was not done oscillating motion, thereby, the cutting blade 5 that connects output shaft 13 is not done oscillating motion equally and is remained on initial position, the position when promptly cutting blade 5 as shown in Figure 12 and the cutting edge angle between the ledger-plate 4 are α 1.

As shown in figure 11, when output shaft 13 is swung clockwise, cutting blade 5 will be done the clockwise direction swing around axial line X, its cutting edge 56 produces angular displacement with respect to ledger-plate 4, thereby, make the cutting edge angle between the two be extended to α 2, constitute the operation of opening in the shearing motion.

And for example shown in Figure 13, when output shaft 13 generations are swung in the other direction, be that output shaft 13 is when doing counter-clockwise swing, cutting blade 5 will be done swing counterclockwise around axial line X, its cutting edge 56 produces angular displacement with respect to ledger-plate 4, thereby, make the cutting edge angle between the two be contracted to α 3, constitute the closed procedure in the shearing motion.

Certainly, the angle here only is in order to be beneficial to the clearly sign that explanation is taked, and is exactly to adopt such angle setting but be not defined in, and it can also be other angles that realize shear action.

Along with the swing of output shaft 13, it drives cutting blade 5 and also does swing, and amplitude of fluctuation is gone round and begun again within above-mentioned angular range, realizes shear action.

Claims

1. shearing tool, on dismountable swing power tool that is connected a kind of hand-held, the output shaft with axial line (13) that described swing power tool comprises head capsule (12) and extends in the head capsule (12), and output shaft (13) can be done oscillating motion around axial line, described shearing tool comprises the Connection Block (2) that is connected with head capsule (12), be connected the ledger-plate (4) on the Connection Block (2), with the cutting blade (5) movable with respect to ledger-plate (4), it is characterized in that: described shearing tool also comprises the capping (3) fixing with respect to Connection Block (2), and described cutting blade (5) is housed between described Connection Block (2) and the capping (3).

2. shearing tool as claimed in claim 1, it is characterized in that: described capping (3) is circular, form first groove (31), second groove (32) and cannelure (33) on its end face, wherein, first groove (31) is ladder-like arranged with second groove (32), and cannelure (33) is positioned at the annular center position of capping (3).

3. shearing tool as claimed in claim 2, it is characterized in that: described cutting blade (5) comprises installation portion (51), dynamic cutter head (52) and is connected and installed portion (51) and the connecting rod (53) of dynamic cutter head (52) that wherein installation portion (51) is provided with the installing hole (54) that connects described output shaft (13).

4. shearing tool as claimed in claim 3 is characterized in that: described installation portion (51) is rounded, and its diameter is less than the diameter of cannelure (33), and described installation portion (51) is housed in the described cannelure (33).

5. shearing tool as claimed in claim 4 is characterized in that: described connecting rod (53) is rectangle, and its width is less than the width of first groove (31), and described connecting rod (53) is contained in described first groove (31).

6. shearing tool as claimed in claim 5, it is characterized in that: the locating cover (22) that described Connection Block (2) comprises pedestal (21) and extends on pedestal (21), described pedestal is circular, the inside of its ring-type is provided with race ring (23), and the outside of ring-type is formed with some bolt blocks (24) along the vertical direction of head capsule (12).

7. shearing tool as claimed in claim 6, it is characterized in that: described ledger-plate (4) comprises connecting portion (41), stationary knife head (42) and the kink (43) that connects connecting portion (41) and stationary knife head (42), described connecting portion (41) is provided with bolt hole (44), and a bolt block (24) passes in described bolt hole (44) and ledger-plate (4) is fixedly coupled on Connection Block (2).

8. shearing tool as claimed in claim 7 is characterized in that: the width of described connecting portion (41) is less than the width of last second groove of described capping (3) (32), and described connecting portion (41) is housed in described second groove (32).

9. shearing tool as claimed in claim 8, it is characterized in that: also be provided with locating slot (35) in the described capping (3), also be provided with reference column (25) on the described Connection Block (2), also be provided with locating hole (45) on the connecting portion (41) of described ledger-plate (4), described reference column (25) passes locating hole (45) and is inserted in the locating slot (35).

10. shearing tool as claimed in claim 9, it is characterized in that: the installation portion (51) of described cutting blade (5) contacts for end face with race ring (23) on the Connection Block (2), simultaneously, dynamic cutter head (52) is positioned on the stationary knife head (42) and the position between the connecting portion (41) of ledger-plate (4).