CN210121776U - Multi-part simultaneous centering clamping fixture - Google Patents

Abstract

The utility model discloses a multi-part simultaneous centering clamping fixture, which comprises a fixed seat, a first placing groove, a first connecting gear, a first rear clamping arm, a second placing groove, a second connecting gear, a second rear clamping arm, a third placing groove, a third rear clamping arm, a fourth placing groove, a fourth connecting gear, a fourth rear clamping arm, a fifth placing groove, a fifth connecting gear, a fifth rear clamping arm, a fifth front clamping arm, a fourth front clamping arm, a third front clamping arm, a second front clamping arm and a first front clamping arm; the utility model has the advantages of reasonable and simple structure, the top tightening device arranged here can tightly push the part to make the right side surface of the part close to the right side surface of the placing groove for transverse positioning, and the positioning efficiency is also improved; the utility model discloses in the connecting gear who sets up to guaranteed that back centre gripping arm moves backward simultaneously before the link gear that also can constitute through rack and pinion moves to the front side, just also can carry out fore-and-aft centering positioning clamp to part in the standing groove and press from both sides tightly, just also improved the efficiency and the precision of centering centre gripping.

Description

Multi-part simultaneous centering clamping fixture

Technical Field

The utility model relates to the technical field of machining, in particular to many parts are centering clamping jig simultaneously.

Background

The machining process is a process of changing the overall dimension or performance of a workpiece through a mechanical device, and can be divided into cutting and pressure machining according to the difference of machining modes, the clamp is a device which is used for fixing a machined object in the machining process to enable the machined object to occupy a correct position to receive construction or detection, in a broad sense, in any process in the technological process, the device used for quickly, conveniently and safely installing the workpiece can be called as the clamp, and the existing process of simultaneously machining multiple parts needs to be respectively positioned and clamped, so that the clamping efficiency is low, in addition, the positioning precision is poor, and the machining efficiency and quality are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a many parts are centering simultaneously and press from both sides tight anchor clamps in order to solve above-mentioned problem, solved present to add simultaneously to many parts and need advance line location respectively tight, so not only clamping inefficiency, the precision of location is also relatively poor in addition to the efficiency of processing and the problem of quality have seriously been influenced.

In order to solve the above problem, the utility model provides a technical scheme: the utility model provides a many parts are centering clamping jig simultaneously, its innovation point lies in: the clamping device comprises a fixed seat, a first placing groove, a first connecting gear, a first rear clamping arm, a second placing groove, a second connecting gear, a second rear clamping arm, a third placing groove, a third connecting gear, a third rear clamping arm, a fourth placing groove, a fourth connecting gear, a fourth rear clamping arm, a fifth placing groove, a fifth connecting gear, a fifth rear clamping arm, a fifth front clamping arm, a fourth front clamping arm, a third front clamping arm, a second front clamping arm and a first front clamping arm; a first placing groove, a second placing groove, a third placing groove, a fourth placing groove and a fifth placing groove are uniformly formed in the center of the upper surface of the fixing seat from left to right in sequence; the rear side of the first placing groove is longitudinally and movably connected with a first rear clamping arm, the front side of the first placing groove is longitudinally and movably connected with a first front clamping arm, and the first front clamping arm is connected with the first rear clamping arm through a first connecting gear; the rear side of the second placing groove is longitudinally and movably connected with a second rear clamping arm, the front side of the second placing groove is longitudinally and movably connected with a second front clamping arm, and the second front clamping arm is connected with the second rear clamping arm through a second connecting gear; the rear side of the third placing groove is longitudinally and movably connected with a third rear clamping arm, the front side of the third placing groove is longitudinally and movably connected with a third front clamping arm, and the third front clamping arm is connected with the three-phase rear clamping arm through a third connecting gear; the rear side of the four placing grooves is longitudinally and movably connected with a rear clamping arm four, the front side of the four placing grooves is longitudinally and movably connected with a front clamping arm four, and the front clamping arm four-way is connected with the rear clamping arm four through a connecting gear four; the five rear sides of the placing groove are longitudinally and movably connected with a fifth rear clamping arm, the five front sides of the placing groove are longitudinally and movably connected with a fifth front clamping arm, and the fifth front clamping arm is connected with the fifth rear clamping arm through a fifth connecting gear.

Preferably, the device also comprises a first side arm, a connecting arm, a screw, a nut, a second side arm and a jacking device; the rear end of the screw is fixedly connected with the front end of the rear clamping arm III, the front side of the screw is movably connected in a central hole of the connecting arm, and the external thread on the front side of the screw is connected with the nut; the rear side surface of the nut is connected with the central front side surface of the connecting arm; the right side of the connecting arm is hinged with the center of the first side arm, and the left side of the connecting arm is hinged with the center of the second side arm; the right rear side of the side arm I is connected with the front end of the front clamping arm V, and the left rear side of the side arm I is connected with the front end of the front clamping arm IV; the right rear side of the side arm II is connected with the front end of the front clamping arm II, and the left rear side of the side arm II is connected with the front end of the front clamping arm I; the number of the jacking devices is five, and the jacking devices are respectively and fixedly connected to the left sides of the first placing groove, the second placing groove, the third placing groove, the fourth placing groove and the fifth placing groove.

Preferably, the jacking device comprises a shell, a jacking block, an inclined plane and a jacking spring; the ejecting block is transversely movably connected to the right side inside the shell, an inclined plane is arranged on the upper right side of the ejecting block, and a jacking spring is arranged between the left side of the ejecting block and the left side face inside the shell.

Preferably, the upper surfaces of the centers of the lower sides of the first rear clamping arm, the second rear clamping arm, the third rear clamping arm, the fourth rear clamping arm and the fifth rear clamping arm are respectively provided with a transverse rack.

Preferably, the lower sides of the front clamping arm five, the front clamping arm four, the front clamping arm three, the front clamping arm two and the front clamping arm one are respectively provided with a transverse rack.

The utility model has the advantages that:

(1) the utility model has the advantages of reasonable and simple structure, low in production cost, simple to operate, it is multiple functional, the tight device in top that sets up here can push up tight part and make its right flank lean on tightly to carry out horizontal location in the standing groove right flank, has just also improved the efficiency of location.

(2) The utility model discloses in the connecting gear who sets up to guaranteed that back centre gripping arm moves backward simultaneously before the link gear that also can constitute through rack and pinion moves to the front side, just also can carry out fore-and-aft centering positioning clamp to part in the standing groove and press from both sides tightly, just also improved the efficiency and the precision of centering centre gripping.

(3) The utility model discloses the link gear that well linking arm, side arm one and side arm two are constituteed can ensure that the part in all standing grooves can both press from both sides tightly, appears the not tight phenomenon of centering centre gripping when just also having avoided part length nonconformity to the quality of processing has been improved.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the jacking device.

1-a fixed seat; 2, placing a first groove; 3-connecting a first gear; 4-a rear clamping arm I; 5-placing a second groove; 6-connecting a second gear; 7-a second rear clamping arm; 8-placing a third groove; 9-connecting gear III; 10-rear clamping arm III; 11-placing a groove IV; 12-connecting gear four; 13-rear clamping arm four; 14-placing a groove five; 15-connecting gear five; 16-rear clamping arm five; 17-front clamping arm five; 18-side arm one; 19-front clamping arm four; 20-a linker arm; 21-screw rod; 22-a nut; 23-front clamping arm III; 24-a front clamping arm II; 25-side arm two; 26-front clamping arm one; 27-a tightening device; 271-a housing; 272-top block; 273-inclined plane; 274-tightening the spring.

Detailed Description

As shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: a multi-part simultaneous centering and clamping fixture comprises a fixing seat 1, a first placing groove 2, a first connecting gear 3, a first rear clamping arm 4, a second placing groove 5, a second connecting gear 6, a second rear clamping arm 7, a third placing groove 8, a third connecting gear 9, a third rear clamping arm 10, a fourth placing groove 11, a fourth connecting gear 12, a fourth rear clamping arm 13, a fifth placing groove 14, a fifth connecting gear 15, a fifth rear clamping arm 16, a fifth front clamping arm 17, a fourth front clamping arm 19, a third front clamping arm 23, a second front clamping arm 24 and a first front clamping arm 26; a first placing groove 2, a second placing groove 5, a third placing groove 8, a fourth placing groove 11 and a fifth placing groove 14 are uniformly arranged in the center of the upper surface of the fixed seat 1 from left to right; the rear side of the first placing groove 2 is longitudinally and movably connected with a first rear clamping arm 4, the front side of the first placing groove 2 is longitudinally and movably connected with a first front clamping arm 26, and the first front clamping arm 26 is connected with the first rear clamping arm 4 through a first connecting gear 3; the rear side of the second placing groove 5 is longitudinally and movably connected with a second rear clamping arm 7, the front side of the second placing groove 5 is longitudinally and movably connected with a second front clamping arm 24, and the second front clamping arm 24 is connected with the second rear clamping arm 7 through a second connecting gear 6; the rear side of the third placing groove 8 is longitudinally and movably connected with a third rear clamping arm 10, the front side of the third placing groove 8 is longitudinally and movably connected with a third front clamping arm 23, and the third front clamping arm 23 is connected with the third rear clamping arm 10 through a third connecting gear 9; the rear side of the placing groove IV 11 is longitudinally and movably connected with a rear clamping arm IV 13, the front side of the placing groove IV 11 is longitudinally and movably connected with a front clamping arm IV 19, and the front clamping arm IV 19 is connected with the rear clamping arm IV 13 through a connecting gear IV 12; the rear side of the five placing groove 14 is longitudinally and movably connected with a five rear clamping arm 16, the front side of the five placing groove 14 is longitudinally and movably connected with a five front clamping arm 17, and the five front clamping arm 17 is connected with the five rear clamping arm 16 through a five connecting gear 15.

The device also comprises a side arm I18, a connecting arm 20, a screw 21, a nut 22, a side arm II 25 and a jacking device 27; the rear end of the screw rod 21 is fixedly connected with the front end of the rear clamping arm III 10, the front side of the screw rod 21 is movably connected in a central hole of the connecting arm 20, and the external thread on the front side of the screw rod 21 is connected with the nut 22; the rear side surface of the nut 22 is connected with the central front side surface of the connecting arm 20; the right side of the connecting arm 20 is hinged with the center of the first side arm 18, and the left side of the connecting arm 20 is hinged with the center of the second side arm 25; the right rear side of the side arm I18 is connected with the front end of the front clamping arm V17, and the left rear side of the side arm I18 is connected with the front end of the front clamping arm IV 19; the right rear side of the side arm II 25 is connected with the front end of the front clamping arm II 24, and the left rear side of the side arm II 25 is connected with the front end of the front clamping arm I26; the number of the jacking devices 27 is five, and the jacking devices 27 are fixedly connected to the left sides of the first placing groove 2, the second placing groove 5, the third placing groove 8, the fourth placing groove 11 and the fifth placing groove 14 respectively.

As shown in fig. 3, the structure of the tightening device 27 includes a housing 271, a top block 272, a slope 273 and a tightening spring 274; the top block 272 is transversely movably connected to the right side inside the casing 271, a slope 273 is arranged on the upper right side of the top block 272, and a jacking spring 274 is arranged between the left side of the top block 272 and the left side inside the casing 271.

Transverse racks are arranged in the upper surfaces of the centers of the lower sides of the first rear clamping arm 4, the second rear clamping arm 7, the third rear clamping arm 10, the fourth rear clamping arm 13 and the fifth rear clamping arm 16; and transverse racks are arranged in the lower sides of the front clamping arm five 17, the front clamping arm four 19, the front clamping arm three 23, the front clamping arm two 24 and the front clamping arm one 26.

The utility model discloses a user state does: the utility model has the advantages of reasonable and simple structure, low in production cost, simple to operate, it is multiple functional, during the clamping, at first place the part respectively in the corresponding standing groove, the tight device 27 in top that sets up here, can push up tight part and make its right flank lean on tightly to carry out horizontal location in the standing groove right flank, just also improved the efficiency of location, and back screw up nut 22 through the spanner makes linking arm 20 be close to fixing base 1, also can make screw rod 21 drive back centre gripping arm three 10 to the front side removal press from both sides tight standing groove three 8 in the part simultaneously, because the connecting gear three 9 that sets up here, thereby guaranteed that back centre gripping arm three 10 moves backward also can drive preceding centre gripping arm three 23 simultaneously through the link gear that the rack and pinion constitutes, just also can carry out fore-and-aft centering location to the part in standing groove three 8 and press from both sides tightly, just also improved the efficiency and the precision of centering centre gripping, in addition 20 backward also can promote preceding centre gripping arm five 17, 17 respectively through side arm one 18 and side arm two, The front clamping arm four 19, the front clamping arm two 24 and the front clamping arm one 26 move backwards together, and similarly, a linkage mechanism formed by the gear and the rack can drive the corresponding rear clamping arm five 16, the rear clamping arm four 13, the rear clamping arm two 7 and the rear clamping arm one 4 to move forwards together to center, position and clamp parts in the placing grooves, and the linkage mechanism formed by the connecting arm 20, the side arm one 18 and the side arm two 25 can ensure that the parts in all the placing grooves can be clamped, so that the phenomenon of untight centering and clamping when the lengths of the parts are inconsistent is avoided, and the processing quality is improved.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, which are only illustrative, but also various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a many parts are centering clamping jig simultaneously which characterized in that: the clamping device comprises a fixed seat (1), a first placing groove (2), a first connecting gear (3), a first rear clamping arm (4), a second placing groove (5), a second connecting gear (6), a second rear clamping arm (7), a third placing groove (8), a third connecting gear (9), a third rear clamping arm (10), a fourth placing groove (11), a fourth connecting gear (12), a fourth rear clamping arm (13), a fifth placing groove (14), a fifth connecting gear (15), a fifth rear clamping arm (16), a fifth front clamping arm (17), a fourth front clamping arm (19), a third front clamping arm (23), a second front clamping arm (24) and a first front clamping arm (26);

a first placing groove (2), a second placing groove (5), a third placing groove (8), a fourth placing groove (11) and a fifth placing groove (14) are uniformly arranged in the center of the upper surface of the fixed seat (1) from left to right;

the rear side of the first placing groove (2) is longitudinally and movably connected with a first rear clamping arm (4), the front side of the first placing groove (2) is longitudinally and movably connected with a first front clamping arm (26), and the first front clamping arm (26) is connected with the first rear clamping arm (4) through a first connecting gear (3);

the rear side of the second placing groove (5) is longitudinally and movably connected with a second rear clamping arm (7), the front side of the second placing groove (5) is longitudinally and movably connected with a second front clamping arm (24), and the second front clamping arm (24) is connected with the second rear clamping arm (7) through a second connecting gear (6);

the rear side of the third placing groove (8) is longitudinally and movably connected with a third rear clamping arm (10), the front side of the third placing groove (8) is longitudinally and movably connected with a third front clamping arm (23), and the third front clamping arm (23) is connected with the third rear clamping arm (10) through a third connecting gear (9);

the rear side of the fourth placing groove (11) is longitudinally and movably connected with a fourth rear clamping arm (13), the front side of the fourth placing groove (11) is longitudinally and movably connected with a fourth front clamping arm (19), and the fourth front clamping arm (19) is connected with the fourth rear clamping arm (13) through a fourth connecting gear (12);

the rear side of the five (14) placing groove is longitudinally and movably connected with a fifth rear clamping arm (16), the front side of the five (14) placing groove is longitudinally and movably connected with a fifth front clamping arm (17), and the fifth front clamping arm (17) is connected with the fifth rear clamping arm (16) through a fifth connecting gear (15).

2. A multi-part simultaneous centering and clamping fixture as claimed in claim 1, wherein: the device also comprises a side arm I (18), a connecting arm (20), a screw rod (21), a nut (22), a side arm II (25) and a jacking device (27);

the rear end of the screw rod (21) is fixedly connected with the front end of the rear clamping arm III (10), the front side of the screw rod (21) is movably connected in a central hole of the connecting arm (20), and the outer thread of the front side of the screw rod (21) is connected with the nut (22);

the rear side surface of the nut (22) is connected with the central front side surface of the connecting arm (20);

the right side of the connecting arm (20) is hinged with the center of the side arm I (18), and the left side of the connecting arm (20) is hinged with the center of the side arm II (25);

the right rear side of the side arm I (18) is connected with the front end of the front clamping arm I (17), and the left rear side of the side arm I (18) is connected with the front end of the front clamping arm II (19);

the right rear side of the side arm II (25) is connected with the front end of the front clamping arm II (24), and the left rear side of the side arm II (25) is connected with the front end of the front clamping arm I (26);

the number of the jacking devices (27) is five, and the jacking devices (27) are respectively and fixedly connected to the left sides of the first placing groove (2), the second placing groove (5), the third placing groove (8), the fourth placing groove (11) and the fifth placing groove (14).

3. A multi-part simultaneous centering and clamping fixture as claimed in claim 2, wherein: the jacking device (27) comprises a shell (271), a jacking block (272), a slope (273) and a jacking spring (274);

the top block (272) is transversely movably connected to the right side inside the casing (271), an inclined plane (273) is arranged on the upper right side of the top block (272), and a jacking spring (274) is arranged between the left side of the top block (272) and the left side face inside the casing (271).

4. A multi-part simultaneous centering and clamping fixture as claimed in claim 1, wherein: and transverse racks are arranged in the upper surfaces of the centers of the lower sides of the first rear clamping arm (4), the second rear clamping arm (7), the third rear clamping arm (10), the fourth rear clamping arm (13) and the fifth rear clamping arm (16).

5. A multi-part simultaneous centering and clamping fixture as claimed in claim 1, wherein: and transverse racks are arranged in the lower sides of the front clamping arm five (17), the front clamping arm four (19), the front clamping arm three (23), the front clamping arm two (24) and the front clamping arm one (26).

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