CN202291642U

CN202291642U - Double saw blade quick-clamping device

Info

Publication number: CN202291642U
Application number: CN2011203967155U
Authority: CN
Inventors: 周红陶
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2011-10-18
Filing date: 2011-10-18
Publication date: 2012-07-04
Anticipated expiration: 2021-10-18

Abstract

The utility model discloses a double saw blade quick-clamping device. The double saw blade quick-clamping device comprises a first quick clamp used for clamping a first saw blade and a second quick clamp used for clamping a second saw blade and is characterized in that: the first quick clamp and the second quick clamp are arranged on a quick clamp transmission control mechanism in parallel; and a quick clamp reciprocating stroke is set as A, the distance between the saw blade clamping positions and the tail part is B, and the B is more than or equal to 2A. Due to the structure, one blade is clamped, and the other blade is not clamped; and when the device is started, the blade which is not clamped can be automatically clamped, so that the safety is ensured, and the clamping efficiency can be improved.

Description

Two saw blade Fast clamping devices

Technical field

The utility model relates to a kind of two saw blade Fast clamping devices, belongs to the electric tool technical field.

Background technology

In the common electric cutting tool, saw blade is installed in instrument, again through saw blade control and actuator drives saw blade action carrying out cutting work through Fast clamping device; According to the difference of workpiece to be cut, the electric cutting tool that has adopts single saw blade with the harder material of cutting, such as wood; Steel pipe, copper pipe etc., the electric cutting tool that has adopt two saw blades with the softer material of cutting; Like sponge, foam, insulation glass, fibrous material; Just can start utensil after the existing mechanism that is used to clamp double blade need all will clamp two blades respectively, if the user is unclear, a clamping blade; When the another one blade does not also have clamping to put in place, start utensil, may cause danger.

Summary of the invention

The utility model technical problem to be solved provides a kind of pair of saw blade Fast clamping device, and fast clamp mechanism can adapt to the different-thickness blade, has automatic clamping function; Promptly a blade clamps; Another blade does not have clamping, behind the unlatching machine, the blade that does not clamp not clamp automatically; Guarantee safety like this, can improve clamping efficient again.

For solving the problems of the technologies described above; The utility model provides a kind of pair of saw blade Fast clamping device; Comprise being used for second folder soon that first of clamping first saw blade pressed from both sides and be used for clamping second saw blade soon, it is characterized in that: the said first fast folder presss from both sides parallel being installed on the fast folder transmission controlling mechanism soon with second, and establishing fast folder reciprocating stroke is A; Saw blade clamps the position and the afterbody distance is B, then B >=2A.

The beneficial effect that the utility model reached:

The utility model clamps at a blade through said structure, and another blade does not have clamping, behind the unlatching machine, the blade that does not clamp to clamp automatically, guarantees safety like this, can improve clamping efficient again.

Description of drawings

Fig. 1 is the front view of the saw blade Fast clamping device of the utility model;

Fig. 2 is the vertical view of the saw blade Fast clamping device of the utility model;

Fig. 3 is the structural representation of fast folder button part;

Fig. 4 is the profile of the B-B direction of Fig. 1 at fast folder clamped condition;

Fig. 5 is the profile of the B-B direction of Fig. 1 in fast folder release conditions;

Fig. 6 is the profile of the C-C direction of Fig. 1;

Fig. 7 is the sketch map of A for fast folder reciprocating stroke;

Fig. 8 clamps the position for saw blade and the afterbody distance is B

The ultimate range that Fig. 9 staggers for preceding two saw blades of assembling is that the afterbody distance of C and saw blade clamping position and another saw blade is the sketch map of D.

Respectively be labeled as among the figure:

2. second saw blade; 3. the second slide bar parts; 4. sell a; 5. pressing plate; 6. steel ball; 7. stage clip; 8. sell b; 9. the second fast clip main body; 10. second slide bar; 11. sliding bearing a; 12. roller pin a; 13. roller a; 14. roller pin b; 15 roller b; 16 sliding bearing b; 17. planet carrier; 18. planetary gear; 19. ring gear; 20. sun gear; 21. motor; 22. first saw blade; 23. the first slide bar parts; 24. first slide bar; 25. oiliness bearing a, 26. rotating shafts; 27. end face bearing a; 28. camshaft; 29. spacer pin; 30. end face bearing b; 31 oiliness bearing b; 32 gear-boxes; 33. sliding bearing c; 34. sliding bearing d, 35. first fast clip main bodies; 36 pin c; 37. pin d; 38. roller c; 39. roller pin c; 40 roller d; 41 roller pin d; 2801. cam position; 43 fast folder buttons; 44 button spring; 45 limiting plates; 46 casings; 47 pin e

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the front view of the saw blade Fast clamping device of the utility model.Comprise motor 21, press from both sides transmission controlling mechanism and fast folder soon, saw blade is installed on the fast folder.

Fig. 2 is the vertical view of the saw blade Fast clamping device of the utility model, and the said first fast folder and second presss from both sides parallel soon and staggers each other and is installed on the fast folder transmission controlling mechanism.Fast folder transmission controlling mechanism comprises the sun gear 20 that is installed on motor 21 output shafts; Sun gear and planetary gear 18 engagements; Planetary gear 18 and ring gear 19 engagements, planetary gear 18 is meshed with planet carrier 17, and rotating shaft 26 links to each other with planet carrier 17; Camshaft 28 is installed in the excircle of rotating shaft 26; And link to each other with rotating shaft 26 through spacer pin 29, the second slide bar parts 3 and the first slide bar parts 23 are installed in respectively on two cam positions 2801 of camshaft 28, and said first presss from both sides and the second fast folder is installed in respectively on the first slide bar parts 23 and the second slide bar parts 3 soon.

Rotating shaft 26 is installed in the gear-box 32 through oiliness bearing a25 and oiliness bearing b31.Second slide bar 10 is installed in the gear-box 32 through sliding bearing a11 and sliding bearing b16; Said first slide bar 24 is installed in the gear-box 32 through sliding bearing c33 and sliding bearing d34.

Roller a13 links to each other with second slide bar 10 through roller pin a12; Roller b15 links to each other with second slide bar 10 through roller pin b14, and said roller a13 and roller b15 are clamped on the cam position 2801 in pairs; Roller c38 links to each other with first slide bar 24 through roller pin c39; Roller d40 links to each other with first slide bar 24 through roller pin d41, and said roller c38 and roller d40 are clamped on the cam position 2801 in pairs.

The second fast folder comprises the second fast clip main body 9; Be useful on the elongate slots of holding saw blade in the second fast clip main body, 9 inside; On the part that stretches into elongate slots of saw blade, be provided with a locating hole 201, with locating hole 201 vertical directions be provided with one be used to hold steel ball 6 cylindrical groove, pressing plate 5 is installed on the second fast clip main body, 9 inside; Pressing plate 5 is provided with and the recess 501 that is used to hold steel ball 6, and the lower end of recess 501 is inclined-plane 502.Be provided with stage clip 7 in the bottom of said pressing plate 5.Pressing plate 5 links to each other with fast folder button 43, presss from both sides button 43 soon and stretches out gear-box 32 outer convenient operations.

The energy transfer process of fast folder transmission controlling mechanism is: motor 21 drives sun gear 20, and sun gear 20 drives planetary gear 18, and planetary gear 18 drives planet carrier 17; Planet carrier 17 drives rotating shaft 26; Rotating shaft 26 drives spacer pin 29, spacer pin 29 drive cam shaft 28, and the cam position 2801 of camshaft 28 drives the second slide bar parts 3 and the first slide bar parts 23; The second slide bar parts 3 drive second saw blade, 2, the first slide bar parts 23 and drive first saw blade 22.

Fast folder clamping explanation is shown in Fig. 3-6: casing 46 support limit plates 45 and fast folder button 43; Limiting plate 35 supports button spring 44; Button 43. pressing plates 5 supporting pin e47 are pressed from both sides in button spring 44 side pressures soon, and pin e47 slides in the stopper slot 901 of fast clip main body 9, carries out spacing to pressing plate.

Release conditions: press down fast folder button 43, press from both sides button 43 soon and press down pressing plate 5, when pressing plate presses down; Pressing plate recess 501 and steel ball 6 correspondences; This moment, steel ball can slip into pressing plate recess 501, and the saw blade locating hole of steel ball 6 and saw blade 2 was opened in 201 minutes, and saw blade can take out from fast clip main body 9.

Clamped condition: under release conditions, insert saw blade 2, when 6 pairs of the locating hole 201 and the steel balls of saw blade 2 seasonable; Unclamp fast folder button 43, this moment, fast folder button 43 resetted under the lateral pressure of button spring 44, and pressing plate 5 resets under the lateral pressure of stage clip 7; This moment, the inclined-plane 502 of pressing plate can push steel ball 6; Make steel ball 6 side pressure saw blade holes 201, saw blade 2 is clamped, can not take out.

The fast folder condition of clamping automatically shown in Fig. 7-9: establishing fast folder reciprocating stroke is A, and saw blade clamps position and afterbody apart from being B, and assembling the ultimate range that preceding two saw blades stagger is C; This moment one saw blade to clamp the afterbody distance of position and another saw blade be D, for pair saw blades can well be installed on the fast folder, after promptly a saw blade clamping puts in place; The another one saw blade does not also have clamping to put in place; Start utensil this moment, and under the reciprocal effect of slide bar, clamping is good automatically for another saw blade.4 kinds of situation below dividing, see the condition that needs:

When two fast folder complete matchings, i.e. A=0 has following situation:

1. install after two saw blades just in time align, need B >=0 this moment

2. install after two saw blades stagger fully, need B >=C this moment, general C=A+1mm, thus necessary B >=A,

When two fast folders stagger fully, i.e. A=Stroke has following situation:

1. install after two saw blades just in time align, need B >=A this moment

2. install after two saw blades stagger fully, need B >=A+C this moment, so general C=A+1mm is must B >=2A

So: after considering each situation, must B >=2A be best.

Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replacement or the technical scheme that obtained of equivalent transformation mode, all drop within the protection domain of the utility model.

Claims

1. two saw blade Fast clamping device; Comprise be used for first of clamping first saw blade press from both sides soon and be used for clamping second saw blade second soon the folder; It is characterized in that: the said first fast folder and parallel being installed on the fast folder transmission controlling mechanism of the second fast folder; If press from both sides reciprocating stroke soon is A, and saw blade clamps the position and the afterbody distance is B, then B >=2A.

2. according to claim 1 pair of saw blade Fast clamping device; It is characterized in that: said transmission controlling mechanism comprises the sun gear (20) that is installed on motor (21) output shaft; Sun gear and planetary gear (18) engagement; Planetary gear (18) and ring gear (19) engagement, planetary gear (18) is meshed with planet carrier (17), and rotating shaft (26) links to each other with planet carrier (17); Camshaft (28) is installed in the excircle of rotating shaft (26); And link to each other with rotating shaft (26) through spacer pin (29), the second slide bar parts (3) and the first slide bar parts (23) are installed in respectively on two cam positions (2801) of camshaft (28), and said first presss from both sides and the second fast folder is installed in respectively on the first slide bar parts (23) and the second slide bar parts (3) soon.

3. according to claim 2 pair of saw blade Fast clamping device is characterized in that: said rotating shaft (26) is installed in the gear-box (32) through oiliness bearing a (25) and oiliness bearing b (31).

4. according to claim 2 pair of saw blade Fast clamping device is characterized in that: second slide bar (10) is installed in the gear-box (32) through sliding bearing a (11) and sliding bearing b (16); First slide bar (24) is installed in the gear-box (32) through sliding bearing c (33) and sliding bearing d (34).

5. according to claim 2 pair of saw blade Fast clamping device is characterized in that: roller a (13) links to each other with second slide bar (10) through roller pin a (12); Roller b (15) links to each other with second slide bar (10) through roller pin b (14), and said roller a (13) and roller b (15) are clamped on the cam position (2801) in pairs; Roller c (38) links to each other with first slide bar (24) through roller pin c (39); Roller d (40) links to each other with first slide bar (24) through roller pin d (41), and said roller c (38) and roller d (40) are clamped on the cam position (2801) in pairs.

6. according to claim 2 pair of saw blade Fast clamping device; It is characterized in that: the said second fast folder comprises the second fast clip main body (9); Be useful on the elongate slots of holding saw blade in second fast clip main body (9) inside; On the part that stretches into elongate slots of saw blade, be provided with a locating hole (201), be used to hold the cylindrical groove of steel ball (6) being provided with one with the vertical direction of locating hole (201), pressing plate (5) is installed on second fast clip main body (9) inside; Pressing plate (5) is provided with and is used to hold the recess (501) of steel ball (6), and the lower end of recess (501) is inclined-plane (502).

7. according to claim 6 pair of saw blade Fast clamping device is characterized in that: said pressing plate (5) links to each other with fast folder button (43).

8. according to claim 6 pair of saw blade Fast clamping device is characterized in that: be provided with stage clip (7) in the bottom of said pressing plate (5).