CN202726552U

CN202726552U - Fast assembly clamping device

Info

Publication number: CN202726552U
Application number: CN 201220409066
Authority: CN
Inventors: 金凯; 程一海; 陆永斌; 尹如
Original assignee: NANJING HEAO ELECTROMECHANICAL EQUIPMENT CO Ltd
Current assignee: NANJING HEAO ELECTROMECHANICAL EQUIPMENT CO Ltd
Priority date: 2012-08-17
Filing date: 2012-08-17
Publication date: 2013-02-13
Anticipated expiration: 2022-08-17

Abstract

The utility model relates to a fast assembly clamping device and belongs to the technical field of fixtures. A pair of first gear shafts and a pair of second gear shafts are supported below a sample table plate. A line of centers of the first gear shafts is mutually perpendicular to a line of centers of the second gear shafts, so that a clamping center is formed. The upper ends of the two first gear shafts are fixedly connected to a pair of curvilinear clamping blocks. Eccentric pins are disposed at the upper ends of the two second gear shafts respectively. A pair of butt clamping blocks are disposed on the sample table plate, form a moving pair matching with the lower gear shafts and form a moving pair with the table plate. First gears and second gears are fixedly coaxially connected with a first worm wheel and a second worm wheel respectively. The first worm wheel and the second worm wheel mesh with a first worm and a second worm respectively. By four-point clamping in pairwise symmetry, a geometric center of an irregular object being clamped is allowed to be close to the clamping center, and clamping is fast and stable.

Description

The Rapid Combination clamping device

Technical field

The utility model relates to a kind of clamping device of metallurgical sample, and especially a kind of Rapid Combination clamping device belongs to the clamp technology field.

Background technology

The check of in good time sampling of metal smelt process need, this moment need to be with machinings such as metallurgical sample Quick-clamped bore, mills.Application number is that 200610161362.4 utility model patent discloses a kind of clamping device that is applicable to mill fast, and this device essence is a kind of scroll chuck that can Quick-clamped, and its shortcoming is that corresponding erose clamping stability is relatively poor.For this reason, application number is the three-jaw clamping device that 200610038342.8 Chinese patent application discloses a kind of automatic Quick holding part, the improvements of this device are that three-jaw is the curve piece that the side is shaped with utmost point footpath gradient ramp profile, the rotating shaft of curve piece is parallel being supported in the worm gear case respectively, be fixed with respectively coaxial pinion in the rotating shaft, each pinion and the engagement of same internal gear, internal gear is rotatable to be supported in the worm gear case, be fixedly connected with the worm engaging that worm gear and rotating power source drive with worm gear is coaxial.Because directly changing, the utmost point when the utility model rotates with the curve piece replaces the progressive of transmission three-jaw worm drive, therefore clamp speeds significantly improves, clamp the sample of the therefore suitable various shapes of clamping owing to replaced traditional three-jaw centering with the principle that is similar to the cam clamping simultaneously.Yet find in practice, when being disposed at, bores when milling under the unit head this clamping device, because in the clamping length direction during obviously greater than the sample of width, the geometric center of uncontrollable sample is near the Clamping Center, therefore boring obviously departs from the geometric center of sample often, detects chemical examination after being unfavorable for.

The utility model content

The purpose of this utility model is: the weak point that exists for above-mentioned prior art, by architecture advances, propose a kind of not only can Quick-clamped, and can make the irregular part geometric center that is held near the Rapid Combination clamping device of Clamping Center.

In order to reach above purpose, Rapid Combination clamping device basic technical scheme of the present utility model is: comprise the setting-out table top that is supported on the frame, it is characterized in that: described setting-out table top below is by a pair of vertical the first gear shaft that has respectively the first gear of bearings, and a pair of vertical the second gear shaft that has respectively the second gear, the line of centres of two first gear shafts is mutually vertical with the line of centres of two second gear shafts, and the focus of two lines of centres forms the Clamping Center; The setting-out table top is stretched out in the upper end of described two first gear shafts, is connected with a pair of curve grip block about the Clamping Center symmetry respectively; Described setting-out table top is stretched out in the upper end of described two second gear shafts, respectively the setting-up eccentricity pin; Described setting-out table top be equipped with a pair of about described two first gear shaft line of centres symmetries to fixture block, the opposite end of two pairs of fixture blocks has respectively jaw, the middle part has respectively chute; Described fixture block is consisted of and the moving sets of lower tooth wheel shaft along two first gear shaft line of centres directions by described chute and cam pin, and consist of moving sets along two second gear shaft line of centres directions with described setting-out table top; Two first gears mesh with the first internal gear respectively, and two second gears mesh with secondary annulus respectively; First, second internal gear is connected with first, second worm gear is coaxial respectively, first, second worm engaging that first, second worm gear drives with rotating power source respectively.

During work, rotating power source starts, when the first worm screw drives the first worm gear and then drives the rotation of two first gear shafts by the first internal gear, and two in the same way transpositions of curve grip block, directly change the irregular metallurgical specimen width direction of fast clamp elliptical-type both sides by the utmost point; Simultaneously, when the second worm screw drives the second worm gear and then drives two second gear shafts when rotation by secondary annulus, two cam pins will be under the effect of moving sets, and it is relatively close to order about two pairs of fixture blocks, thereby fast clamp should metallurgy specimen length direction both sides.As a result, in twos symmetrical clamping everywhere can make the irregular geometric center that is held part near the Clamping Center, and clamping is rapid, safe.

Description of drawings

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

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B revolved sectional view (the setting-out table top does not show) of Fig. 1.

The specific embodiment

Embodiment one

The Rapid Combination clamping device of present embodiment as shown in Figure 1 to Figure 3, setting-out table top 1 is supported on the frame 10, a pair of the first gear---vertical first gear shaft of the 3-1 that cogs---axle 3 (referring to Fig. 3) that cogs that has is respectively supported by upper and lower bearing 2 in setting-out table top 1 below, supports a pair of the second gear---vertical second gear shaft of lower gear 4-1---lower tooth wheel shaft 4 (referring to Fig. 2) that has respectively by upper and lower bearing 2 '.Two the cog lines of centres of axle 3 are mutually vertical with the line of centres of two lower tooth wheel shafts 4, and the focus of two lines of centres forms Clamping Center O.The vertical push rod 13 that is in transmission connection with lifting drive 12 is equipped with in this Clamping Center.Setting-out table top 1 is stretched out in this two upper end that cogs axle 3, is connected with a pair of curve grip block 5 about Clamping Center O symmetry respectively, and the curve grip block has the curved profile of utmost point footpath gradual change.Setting-out table top 1 is stretched out in the upper end of two lower tooth wheel shafts 4, fills eccentric block 6-2 respectively with by the hinge of the eccentric pin shaft 6-1 on the spill spin block 6-3 that is connected with it, can make so the following moving sets friction that forms less.Setting-out table top 1 be equipped with a pair of about two cog axle 3 line of centres symmetries to fixture block 6, the opposite end of two pairs of fixture blocks 6 has respectively the jaw of jaw shape, the middle part has respectively and the chute 6-4 of two lower tooth wheel shafts, 4 line of centres perpendicular directions and the guiding elongated slot 6-5 parallel with two lower tooth wheel shaft line of centres directions, thereby make fixture block 6 is consisted of with lower tooth wheel shaft 4 along two moving sets that cog axle 3 line of centres directions by chute 6-4 and eccentric block 6-2, and consist of and the moving sets of setting-out table top 1 along two lower tooth wheel shafts, 4 line of centres directions by guiding elongated slot 6-5 and the slide block 6-6 that wherein is fixed on the setting-out table top.Two cog 3-1 respectively with upper internal gear 16 engagement as the first internal gear, two lower gear 4-1 respectively with lower internal gear 15 engagements as secondary annulus.Upper and lower internal gear respectively with upper and lower worm gear 7,9 coaxial being connected as first, second worm gear, upper and lower worm gear 7,9 is upper and lower worm screw 8,11 engagements with first, second rotating power source---first, second worm screw that air motor D1, D2 drive---respectively.

Particularly, the fixing upper and lower end cap 18,14 of ring-type respectively on the frame below the setting-out table top 1, the upper end cylindrical of upper internal gear 16 and the endoporus of upper end cover 18 matches and plug-in mounting wherein, the lower end cylindrical of lower internal gear 15 and the endoporus of bottom end cover 14 matches and plug-in mounting wherein, and it is recessed that the upper end of lower internal gear 15 has circle, the lower end of upper internal gear 16 has inserts the boss that described circle is recessed and match with it, thereby has consisted of each other the very revolute pair of simple and compact of structure.Upper and lower worm gear 7,9 respectively glands outside upper and lower internal gear 16,15 cylindrical, and by round nut 17 further locking is fixing.

During use, after controlling the startup of the first air motor, upper worm screw drives upper worm gear and then drives the two axle rotating Vortexes that cog by upper internal gear, two in the same way transpositions of curve grip block, its relative utmost point footpath becomes large gradually, and fast clamp is placed on the irregular metallurgical specimen width of elliptical-type (minor axis) the direction both sides at place, Clamping Center.After control the second air motor starts, lower worm screw drives lower worm gear and then rotates by lower inside gear driven two lower tooth wheel shafts, two cam pins will be by the moving sets effect, order about two pairs of fixture blocks under the constraint of two compound moving sets, relatively close, fast clamp should metallurgy specimen length (major axis) direction both sides, thus the clamping everywhere by two, two symmetries, make the irregular geometric center that is held part near the Clamping Center, rapid, safe with its clamping.First, second air motor can start as required simultaneously or not simultaneously.After the sample completion of processing that is held, control two air motors reverse rotations, unclamp sample, and the control push rod ejects it, so that taking out, manipulator changes follow-up station over to.

Claims

1. Rapid Combination clamping device, comprise the setting-out table top that is supported on the frame, it is characterized in that: described setting-out table top below is by a pair of vertical the first gear shaft that has respectively the first gear of bearings, and a pair of vertical the second gear shaft that has respectively the second gear, the line of centres of two first gear shafts is mutually vertical with the line of centres of two second gear shafts, and the focus of two lines of centres forms the Clamping Center; The setting-out table top is stretched out in the upper end of described two first gear shafts, is connected with a pair of curve grip block about the Clamping Center symmetry respectively; Described setting-out table top is stretched out in the upper end of described two second gear shafts, respectively the setting-up eccentricity pin; Described setting-out table top be equipped with a pair of about described two first gear shaft line of centres symmetries to fixture block, the opposite end of two pairs of fixture blocks has respectively jaw, the middle part has respectively chute; Described fixture block is consisted of and the moving sets of lower tooth wheel shaft along two first gear shaft line of centres directions by described chute and cam pin, and consist of moving sets along two second gear shaft line of centres directions with described setting-out table top; Two first gears mesh with the first internal gear respectively, and two second gears mesh with secondary annulus respectively; First, second internal gear is connected with first, second worm gear is coaxial respectively, first, second worm engaging that first, second worm gear drives with rotating power source respectively.

2. Rapid Combination clamping device according to claim 1, it is characterized in that: the fixing upper and lower end cap of ring-type respectively on the frame below the described setting-out table top, the upper end cylindrical of upper internal gear and the endoporus of described upper end cover matches and plug-in mounting wherein, the lower end cylindrical of lower internal gear and the endoporus of bottom end cover matches and plug-in mounting wherein, and it is recessed that the upper end of described lower internal gear has circle, the lower end of described upper internal gear has inserts the boss that described circle is recessed and match with it, thereby consists of each other revolute pair.

3. Rapid Combination clamping device according to claim 1 and 2 is characterized in that: upper and lower worm gear respectively gland locks the cylindrical of upper and lower internal gear outside and fixes.

4. Rapid Combination clamping device according to claim 1 and 2 is characterized in that: eccentric pin shaft hinge dress eccentric block describedly consists of with the lower tooth wheel shaft along two moving sets that cog axle line of centres direction by chute and eccentric block fixture block.

5. Rapid Combination clamping device according to claim 4, it is characterized in that: described two pairs of fixture blocks middle part has respectively the guiding elongated slot parallel with two lower tooth wheel shaft line of centres directions, consists of and the moving sets of setting-out table top along two lower tooth wheel shaft line of centres directions by described guiding elongated slot and the slide block that wherein is fixed on the setting-out table top.

6. Rapid Combination clamping device according to claim 5 is characterized in that: the jaw of described opposite end to fixture block is the jaw shape.

7. Rapid Combination clamping device according to claim 6, it is characterized in that: the vertical push rod that is in transmission connection with lifting drive is equipped with in described Clamping Center.