CN202162619U - Counterweight structure for grouped machining fixtures - Google Patents

Counterweight structure for grouped machining fixtures Download PDF

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Publication number
CN202162619U
CN202162619U CN2011201959879U CN201120195987U CN202162619U CN 202162619 U CN202162619 U CN 202162619U CN 2011201959879 U CN2011201959879 U CN 2011201959879U CN 201120195987 U CN201120195987 U CN 201120195987U CN 202162619 U CN202162619 U CN 202162619U
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China
Prior art keywords
balancing weight
square groove
hole
vehicle clamper
diameter
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Expired - Fee Related
Application number
CN2011201959879U
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Chinese (zh)
Inventor
陈世辉
李强
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Fujian University of Technology
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Fujian University of Technology
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Priority to CN2011201959879U priority Critical patent/CN202162619U/en
Application granted granted Critical
Publication of CN202162619U publication Critical patent/CN202162619U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a counterweight structure for grouped machining fixtures, which comprises a counterweight body and two slotted holes arranged side by side. The counterweight structure is characterized in that a semicircular screw hole and a square slotted hole are integrated to form each slotted hole, and the length of a side of each square slotted hole is between the diameter of an internal tangent circle and the diameter of an outer tangent circle of each locking hexagonal nut. The counterweight structure has the advantages of reasonable design, simple structure, convenience in assembly and replacement and safety in service. The slotted holes match with the hexagonal nuts, accordingly, replacement operation is convenient, and operational safety is ensured.

Description

A kind of counterweight block structure of vehicle clamper in groups
Technical field:
The utility model belongs to the lathe fitting field, the improvement of vehicle clamper counterweight block structure in groups of particularly a kind of safety, easy-to-install.
Background technology:
Often use vehicle clamper at the batch turner, vehicle clamper is that the main shaft with lathe rotates, because the needs of the shape of workpiece and its location, clamping, the general structure of anchor clamps generally all is unbalanced.During production and processing, because action of centrifugal force, unbalanced adverse consequences will cause vibration exactly, thereby influence the machining accuracy and the surface roughness of workpiece, and the wearing and tearing of aggravation machine tool chief axis and bearing.Angle bar formula turning attachment for example, always because one side that its positioner and other element are mounted in main-shaft axis, energy imbalance is the most serious, and solving one of unbalanced method of vehicle clamper is exactly that balancing weight is set.Like Fig. 1, vehicle clamper 1 and balancing weight 2.
Two kinds form is arranged when balancing weight is set: if a vehicle clamper just is used for processing one type workpiece, that set balancing weight can adopt fixing form; If this vehicle clamper need be used for processing workpiece in groups, because the workpiece of being processed becomes series, its shape, weight all have difference, and the weight of balancing weight also should be different.Common solution is exactly that several block-shaped identical but balancing weights that thickness is different of design can increase or reduce the quantity of balancing weight according to the requirement of different workpieces like this, thereby reach the balance of anchor clamps.
Set balancing weight on vehicle clamper requires safe, easy fixedly the time.When the balancing weight of vehicle clamper in groups particularly is set, because the requirement that increases balancing weight quantity is arranged, require easy accessibility especially, this just need improve design to the counterweight block structure of using always at present.Common counterweight block structure has following several kinds of forms always at present:
(1) as shown in Figure 2, two opening elongated slots 21 are arranged on the balancing weight 2, can inject two fixing on the vehicle clamper in groups screw rods, the hex nut on the tie down screw 3 then to two opening elongated slots 21 during fixed weight piece 2.The mounting or dismounting of this structure are convenient, but it has strengthened simplicity and ignored even more important security, adding man-hour, if the pine of the hex nut on the screw rod, under centrifugal action, balancing weight just possibly fly out and hurt sb.'s feelings.
(2) as shown in Figure 3, only processed two through holes 22 on the balancing weight 2, during fixed weight piece 2, get loose the hex nut on the screw rod 3 get off earlier, pack into screw rod to balancing weight 2 then, hex nut 3 again.This structure has enough securities, but when increasing and decreasing the quantity of balancing weight each time, all must take off hex nut 3 fully, has lost its simplicity.
(3) as shown in Figure 4; Two holes 23 that diameter is different have been processed on the balancing weight 2; The diameter of aperture is generally than the big 0.5-1mm of tie down screw diameter; The diameter of macropore
Figure BDA0000067514740000022
is than the big 2-3mm of circumscribed circle diameter e of hex nut 3; During the fixed weight piece; Can aim at macropore under the tie down screw cover of band hex nut 3; Self-balanced upper rotary 2 again, and the aperture screw rod that is locked is locked hex nut 3 then.This structure also has simplicity preferably, but has potential safety hazard, because the external diameter of big boring ratio hex nut 3 is big, if hex nut 3 pines, balancing weight still has the possibility of deviating from.
How to overcome the deficiency of prior art, design a kind of both satisfied being convenient for changing, balancing weight safe in utilization again promptly becomes the object that the utility model is studied.
Summary of the invention:
The utility model is intended to overcome the design defect of existing balancing weight, designs a kind of slotted eye counterweight block structure of vehicle clamper in groups that the hex nut special angle is inserted in that only allows to lock.
The utility model technical scheme is achieved in that a kind of counterweight block structure of vehicle clamper in groups; Comprise balancing weight body and two slotted eyes that offer side by side; It is characterized in that slotted eye is formed by semicircle screw hole and square groove hole disjunctor, the length of side in square groove hole is between the inscribed circle and circumcircle diameter of locking hex nut.When changing balancing weight, only need the direction of two hex nuts is regulated unanimity, can take out or put into; The nut of then screwing again gets final product, during operation, even hex nut is by the pine that shakes; As long as two hex nuts are not vibrated to same special angle, can guarantee that balancing weight does not fly out or deviates from.
Said balancing weight is an arc structure, and the semicircle screw hole of slotted eye is towards string one side, and the square groove hole is towards arc one side, and two square groove holes are parallel to each other.Make balancing weight when rotating at a high speed, its stress point is in semicircle screw hole one side, and balancing weight is on this anchor point, and can not quilt be shaken flies and shake and take off.
The utlity model has reasonable in design, simple in structure, convenient, the safe in utilization characteristics of assembling replacing.The employing slotted eye cooperates with hex nut, reaches both to be convenient for changing operation, guarantees to add the safety in man-hour again.
Description of drawings:
Below in conjunction with concrete legend the utility model is further specified:
Fig. 1 vehicle clamper schematic perspective view
Fig. 2 has balancing weight one structural representation now
Fig. 3 has balancing weight two structural representations now
Fig. 4 has balancing weight three structural representations now
Fig. 5 the utility model balancing weight schematic perspective view
Fig. 6 the utility model balancing weight user mode figure
Wherein
1-vehicle clamper 2-balancing weight 21-opening elongated slot
22-through hole 23-hole 24-semicircle screw hole
25-square groove 3-hex nut
The specific embodiment:
With reference to Fig. 5 and Fig. 6; Vehicle clamper counterweight block structure in groups; Comprise balancing weight 2 bodies and two slotted eyes that offer side by side; Its slotted eye is formed by semicircle screw hole 24 and square groove 25 hole disjunctors, and the length of side in square groove hole 25 and more approaches the inscribe diameter of a circle between the inscribed circle and circumcircle diameter of the hex nut 3 of locking.
Said balancing weight 2 is an arc structure, and the semicircle screw hole 24 of slotted eye is towards string one side, and square groove hole 25 is towards arc one side; And two square groove holes 25 are parallel to each other; Not only be convenient for changing adjusting, and balancing weight 2 produces taking advantage of a favourable situation of moving outward under centrifugal action; Screw rod relatively just runs toward semicircle screw hole 24 1 sides, and security is higher.

Claims (2)

1. a vehicle clamper counterweight block structure in groups comprises balancing weight body and two slotted eyes that offer side by side, it is characterized in that slotted eye is formed by semicircle screw hole and square groove hole disjunctor, and the length of side in square groove hole is between the inscribed circle and circumcircle diameter of locking hex nut.
2. a kind of counterweight block structure of vehicle clamper in groups according to claim 1 is characterized in that balancing weight is an arc structure, and the semicircle screw hole of slotted eye is towards string one side, and the square groove hole is towards arc one side, and two square groove holes are parallel to each other.
CN2011201959879U 2011-06-10 2011-06-10 Counterweight structure for grouped machining fixtures Expired - Fee Related CN202162619U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201959879U CN202162619U (en) 2011-06-10 2011-06-10 Counterweight structure for grouped machining fixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201959879U CN202162619U (en) 2011-06-10 2011-06-10 Counterweight structure for grouped machining fixtures

Publications (1)

Publication Number Publication Date
CN202162619U true CN202162619U (en) 2012-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201959879U Expired - Fee Related CN202162619U (en) 2011-06-10 2011-06-10 Counterweight structure for grouped machining fixtures

Country Status (1)

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CN (1) CN202162619U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103009076A (en) * 2012-11-21 2013-04-03 无锡市航鹄科技有限公司 Finish turning counter bore positioning tool
CN103737365A (en) * 2013-12-28 2014-04-23 柳江县龙满机械部件有限责任公司 Pedestal lathe fixture
CN105196076A (en) * 2015-09-16 2015-12-30 武汉船用机械有限责任公司 Turning tooling suitable for thrust bearing balancing block

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103009076A (en) * 2012-11-21 2013-04-03 无锡市航鹄科技有限公司 Finish turning counter bore positioning tool
CN103737365A (en) * 2013-12-28 2014-04-23 柳江县龙满机械部件有限责任公司 Pedestal lathe fixture
CN105196076A (en) * 2015-09-16 2015-12-30 武汉船用机械有限责任公司 Turning tooling suitable for thrust bearing balancing block

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120314

Termination date: 20130610