CN203266169U

CN203266169U - Clamping mechanism for movable arm of excavator

Info

Publication number: CN203266169U
Application number: CN 201320102562
Authority: CN
Inventors: 李洪达; 李凯宇; 王桂林; 谭文胜
Original assignee: Changzhou College of Information Technology CCIT
Current assignee: Changzhou College of Information Technology CCIT
Priority date: 2013-03-01
Filing date: 2013-03-01
Publication date: 2013-11-06
Anticipated expiration: 2023-03-01

Abstract

The utility model relates to a clamping mechanism for a movable arm of an excavator. The clamping mechanism comprises a base, a double-rotation-direction screw and two opposite clamping plate seats, wherein end cover plates are arranged at two ends of the base; the two ends of the double-rotation-direction screw are rotatably supported on the two end cover plates respectively; a handle which is fixed with the double-rotation-direction screw is arranged on the outer side surface of one of the end cover plates; thread sections in opposite rotation directions are respectively arranged at the two ends of the double-rotation-direction screw; the middle parts of the bottoms of the two clamping plate seats are in threaded connection with the two thread sections of the double-rotation-direction screw respectively; the two ends of the bottom of each clamping plate seat are slidably supported on the base respectively; the two clamping plate seats and the base can be fixed by a locking piece which penetrates through the clamping plate seats; and clamping pins are respectively arranged on the opposite plate surfaces of the two clamping plate seats. The clamping mechanism is simple in structure and easy to operate, and can be quite conveniently tightened or loosened so as to change the clamping position of the movable arm; and operation is simple, time is saved, and working efficiency is improved.

Description

A kind of clamp mechanism of excavator swing arm

Technical field

The utility model relates to a kind of clamp mechanism of excavator swing arm, belongs to mechanical clamp.

Background technology

The swing arm of excavator is the main stressed member of excavator when digging operation, has the advantages that volume is large, material is thick, quality is heavy.Therefore when swing arm is made, each component part of special-purpose fixture clamping swing arm need to be arranged, the work such as then weld.Fixture commonly used is that four clamping plate are arranged at present, coordinates in twos the two ends that clamp the swing arm part, carries out clamping by securing members such as bolts.Although this structure can clamp the component part of swing arm more securely, in the time of each change clip position, the multiposition dismounting, so not only bother but also lose time.

Summary of the invention

In order to address the above problem, the utility model provides a kind of clamp mechanism of excavator swing arm, this mechanism adopts the two clamping plates seat to be tightened on a double rotational directions screw rod, by interaction and then the quick opening and closing clamping function of realizing securely again the clamping plate seat of the parts such as handle, guide rail, lock-screw, degree of tightness is in order to change the clip position of swing arm very easily.

For achieving the above object, concrete scheme of the present utility model is:

a kind of clamp mechanism of excavator swing arm, comprise base, the double rotational directions screw rod, two clamping plate seats in opposite directions, there is end casing at two ends at described base, the both ends of described double rotational directions screw rod are rotating being supported on two end cover plate respectively, therein the lateral surface of an end casing have one with the fixing handle of double rotational directions screw rod, at the two ends of described double rotational directions screw rod, the opposite thread segment of rotation direction is arranged respectively, the middle part of the bottom of described two clamping plate seats is threaded with two thread segments of double rotational directions screw rod respectively, the two ends of the bottom of described two clamping plate seats slidably are supported on base respectively, and can be fixed by the locking member that passes the clamping plate seat between described two clamping plate seats and base, on two clamping plate seats plate face in opposite directions, clamp pin is arranged respectively.Here on the excavator swing arm that will clamp, the hole of matching with clamp pin should be arranged.

Two ends in the bottom of described two clamping plate seats are fixed with respectively ram, longitudinal direction has chute in the bottom surface of described ram, respectively there is a V-type tooth that protrudes the two sides of described chute, be fixed with two guide rails on described base, respectively there is the V-type groove side of described two guide rails, described chute supported is on guide rail, and the V-type tooth of described ram is embedded in the V-type groove, and described two clamping plate seats can slide along the V-type groove by the V-type tooth.

The sawtooth that continuous distributed is arranged at the upper surface of described guide rail, described locking member are lock-screw, can be fixed by the lock-screw that passes the clamping plate seat respectively between two guide rails of described two clamping plate seats and base.

The utility model is simple in structure, and degree of tightness so that the clip position of change swing arm is simple to operate, has been saved the time very easily, has improved operating efficiency.

Description of drawings

Fig. 1 is perspective view of the present utility model;

Fig. 2 is the perspective view of ram;

Fig. 3 is the perspective view of guide rail.

In figure: base 1, end casing 1-1, double rotational directions screw rod 2, thread segment 2-1, clamping plate seat 3, clamp pin 3-1, handle 4, ram 5, chute 5-1, V-type tooth 5-2, guide rail 6, V-type groove 6-1, sawtooth 6-2, locking member 7.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

Referring to Fig. 1～Fig. 3, a kind of clamp mechanism of excavator swing arm comprises base 1, double rotational directions screw rod 2, two clamping plate seats 3 in opposite directions.

At the two ends of base 1, end casing 1-1 is arranged, the both ends of double rotational directions screw rod 2 are supported on two end cover plate 1-1 by bearing is rotating respectively, at one end the lateral surface of cover plate 1-1 have one with the fixing handle 4 of double rotational directions screw rod 2, the opposite thread segment 2-1 of rotation direction is arranged respectively at the two ends of double rotational directions screw rod 2, the middle part of the bottom of two clamping plate seats 3 is threaded with two thread segment 2-1 of double rotational directions screw rod 2 respectively, on two clamping plate seats 3 plate face in opposite directions, clamp pin 3-1 is arranged respectively.

Two ends in the bottom of two clamping plate seats 3 are fixed with ram 5 by screw respectively, longitudinal direction has chute 5-1 in the bottom surface of ram 5, respectively there is a V-type tooth 5-2 who protrudes the two sides of chute 5-1, be fixed with two guide rails 6 by screw on base 1, respectively there is V-type groove 6-1 the side of two guide rails 6, chute 5-1 is supported on guide rail 6, and the V-type tooth 5-2 of ram 5 is embedded in V-type groove 6-1, and two clamping plate seats 3 can slide along V-type groove 6-1 by V-type tooth 5-2.

The sawtooth 6-2 that continuous distributed is arranged at the upper surface of guide rail 6, can be fixing by locking member 7 between two guide rails 6 of two clamping plate seats 3 and base 1, the present embodiment locking member 7 is lock-screw, lock-screw passes clamping plate seat 3, and the end of lock-screw can be stuck between adjacent two sawtooth 6-2 on guide rail 6.

when adopting the clamp mechanism clamping excavator swing arm of this excavator swing arm, base 1 is fixed on workbench, excavator swing arm is placed in (length direction that is excavator swing arm is parallel with the plate face that connects a clamping plate seat 3) between two clamping plate seats 3, there is respectively the hole of matching with clamp pin 3-1 the side relative with the plate face of two clamping plate seats 3 at excavator swing arm, after putting the excavator swing arm position just, turning handle 4, two clamping plate seats 3 move in opposite directions along with the rotation of double rotational directions screw rod 2, until snapping in respectively in the hole of two sides of excavator swing arm, two clamp pin 3-1 locate, be rotated further again handle 4, until two clamping plate seats 3 clamp excavator swing arm, then screwing locking member 7 tightly is fixed in two clamping plate seats 3 on two guide rails 6 of base 1, unscrew locking member 7 behind a position that processes swing arm, turning handle 4 with two clamping plate seats 3 away from excavator swing arm, can shift out easily or mobile excavator swing arm by manipulator, clamp again in order to process other positions of swing arm by the manipulator excavator swing arm certain angle that overturns.Generally consider safety and firmness, the capital adopts two or more the utility model clamp mechanism to clamp swing arm, then also can handle the flexible upset swing arm of the utility model clamp mechanism in order to carry out the processing and manufacturing of different parts by the manipulator on machining tool.

Claims

1. the clamp mechanism of an excavator swing arm, it is characterized in that: comprise base, the double rotational directions screw rod, two clamping plate seats in opposite directions, there is end casing at two ends at described base, the both ends of described double rotational directions screw rod are rotating being supported on two end cover plate respectively, therein the lateral surface of an end casing have one with the fixing handle of double rotational directions screw rod, at the two ends of described double rotational directions screw rod, the opposite thread segment of rotation direction is arranged respectively, the middle part of the bottom of described two clamping plate seats is threaded with two thread segments of double rotational directions screw rod respectively, the two ends of the bottom of described two clamping plate seats slidably are supported on base respectively, and can be fixed by the locking member that passes the clamping plate seat between described two clamping plate seats and base, on two clamping plate seats plate face in opposite directions, clamp pin is arranged respectively.

2. the clamp mechanism of a kind of excavator swing arm according to claim 1, it is characterized in that: the two ends in the bottom of described two clamping plate seats are fixed with respectively ram, longitudinal direction has chute in the bottom surface of described ram, respectively there is a V-type tooth that protrudes the two sides of described chute, be fixed with two guide rails on described base, respectively there is the V-type groove side of described two guide rails, described chute supported is on guide rail, the V-type tooth of described ram is embedded in the V-type groove, and described two clamping plate seats can slide along the V-type groove by the V-type tooth.

3. the clamp mechanism of a kind of excavator swing arm according to claim 2, it is characterized in that: the sawtooth that continuous distributed is arranged at the upper surface of described guide rail, described locking member is lock-screw, can be fixed by the lock-screw that passes the clamping plate seat respectively between two guide rails of described two clamping plate seats and base.