CN2182444Y

CN2182444Y - Gripper for laser disc

Info

Publication number: CN2182444Y
Application number: CN 93245338
Authority: CN
Inventors: 陈志弘; 杨政珲
Original assignee: SHENGBAO CO Ltd
Current assignee: SHENGBAO CO Ltd
Priority date: 1993-11-19
Filing date: 1993-11-19
Publication date: 1994-11-09
Anticipated expiration: 2003-11-19

Abstract

The utility model relates to a gripper for laser discs, which is composed of an electric motor, screws, a bearing body, shrinkable springs, a shrinkable bearing, an upper gripping cover, a conical spring, a lower gripping cover, a top cover, an upper frame, etc. The gripper is characterized in that the circular holes of a copper column penetrate through the circular cylinder of the electric motor, one end of the copper column is embedded in the shrinkable bearing, the copper column is provided with screw holes that are locked on the circular cylinder of the electric motor, the bearing body and the copper column are inserted injection moulding members, the shrinkable springs are placed in the ring pipe of the shrinkable bearing to be clamped with the trench holes of the bearing body, and the circular cylinder of the electric motor penetrates through the shrinkable bearing on which inner bearing margins and outer bearing margins are arranged.

Description

Gripper for laser disc

The utility model is about a kind of laser disk clamping device, it is smooth and easy particularly to lift and clamp stable action about a kind of top that can make laser disk, have less surface vibration and offset during rotation, and assemble the laser disk clamping device easy, with low cost, that good stable, reliability and practicality are provided.

Now existing various laser disk clamping device, in a kind of therein laser disk clamping device, the ring-type mounting portion of the disc board of its center pit is in order to limit laser dish height and position, the rake of ring-type mounting portion week end, offset in order to the limit laser dish, the structure of this method of clamping can't correctly be controlled offset effectively, and clamping built on the sand, owing to adopt a plurality of little springs to cooperate supporting of loam cake to close, each application of force inequality of little spring causes the CD(compact disc easily) with the LD(videodisc) shakiness when rotating, perhaps holding force deficiency, the spacing of perhaps clamping institute is too small and hinder rotation, all can cause the reduction of stability and reliability.

The purpose of this utility model is to provide a kind of laser disk clamping device, and this device all can be put to the bearing pad CD and LD, fixes in different rings, and makes CD between bearing body and cramping body and LD not accumulated tolerances and free to rotate.

Another purpose of the present utility model is to utilize the grab combination in this device, improves existing locking mode, makes combine and assemble quicker.

Another purpose of the present utility model is to use an easy structure, better use effect and lower manufacturing expense in this device, to reach more practical and than the tool economic benefit.

Therefore, the utility model is embodied as: a kind of laser disk clamping device, it is characterized in that comprising bearing body and cramping body two parts, wherein assembly comprises motor, screw, bearing body, coil tension spring, flexible bearing, clamping loam cake, volute spring, clamping lower cover, top cover and upper frame; Wherein,

The circular hole of copper post passes the right cylinder of motor, copper post one end embeds flexible bearing, on the copper post, establish the right cylinder that screw hole is locked on motor, make coil tension spring insert the endless tube of flexible bearing again, engage with the slotted eye of bearing body, the right cylinder of motor passes bearing body and flexible bearing, and flexible bearing is provided with the bearing inner edge, the bearing outer rim, in cramping body volute spring is placed the clamping loam cake, clamping lower cover aligning clamping loam cake is put to be closed, it is involutory to make the clamping lower cover pass top cover, make above-mentioned combination insert the slotted eye of upper frame and be threaded to the top to locate, and the steel ball of clamping loam cake becomes point to contact with the wearing piece of upper frame.

For reaching above-mentioned purpose and structure, existing technological means and the effect thereof that the utility model is adopted reaches embodiment with reference to the accompanying drawings and is described as follows in detail.

The accompanying drawing that this instructions cooperated is:

Fig. 1 is a stereo appearance figure of the present utility model;

Fig. 2 is a three-dimensional system diagram of the present utility model;

Fig. 3 is a plan cross-section synoptic diagram of the present utility model;

Fig. 4 is embodiment of the present utility model.

Structure of the present utility model sees also each assembly shown in Figure 2.It mainly includes: bearing body a is to be made up of motor 1, copper post 2, bearing body 3, coil tension spring 4, flexible bearing 5; Cramping body b is to be made up of institutes such as clamping loam cake 6, volute spring 7, clamping lower cover 8, top cover 9 and upper frames 10.Below describe in detail respectively:

Motor 1 is a circular motor, and extends an elongated cylinder 11, is with an annulated column 12 on elongated cylinder 11;

Copper post 2, convex ring body 21 on one extends with a circle copper post top in system, extends convex ring body 22 in the below, is provided with a screw hole 24 in copper post 2, a circular hole 23 is left in order to pass the right cylinder 11 that motor 1 extends in its center, imbeds in the bearing body 3 to insert forming mode;

Bearing body 3, be provided with bearing 31, extend a high bearing flange 32 in last bearing 31 outsides, other sets the disk of bearing 33 in last bearing 31 belows, at last bearing 31 and lower seat 33 joining places, equidistantly leave a plurality of slotted eyes 34, open a circular hole 35 in lower seat 33 centers, the right cylinder 11 that extends for motor 1 passes, and establishes bearing pad 36 on bearing body 3;

Coil tension spring 4;

Flexible bearing 5; It is circular flexible bearing, be provided with the bearing outer rim 51 of projection in flexible bearing 5 outsides, bulge loop in the inboard is a bearing inner edge 52, on the plane of 54 of bearing inner edge 52 and bearing outer rims, open a plurality of slotted eyes 55, a plurality of hook posts 53 are extended at 55 inboard places in a plurality of slotted eyes, extend an endless tube 54 in bearing inner edge 52 bottoms, endless tube 54 outsides penetrate for coil tension spring 4, its a plurality of hook posts 53 pass a plurality of slotted eyes 34 of bearing body 3 and can hook 34 mouthfuls of slotted eyes, in this moment endless tube 54 suitably distance is involutory with lower seat 33, getting involved therebetween has a coil tension spring 4, makes bearing body 3, coil tension spring 4 combines with flexible bearing 5;

Clamping loam cake 6, it is a ring-type clamping loam cake, be provided with ring 61 in the clamping, and ring 61 is provided with ring groove 62 in clamping, is provided with endless tube body 63 in ring groove 62 inboards, steel ball 64 of endless tube body 63 top embeddings, a plurality of plates 65 of receiving are extended in ring 61 outsides in the clamping, receive plate 65 opposite sides and be connected to clamping outer shroud 66, be provided with L type groove 67, establish a plurality of hook posts 68 equidistantly in L type groove 67 in clamping outer shroud 66 outsides;

Volute spring 7;

Clamping lower cover 8, be provided with a center annular groove 81 in the inboard, annular groove 81 outsides in center are provided with the high interior ring 82 that rises, extend a triangle projection 83 in interior ring 82 high sides and be connected with center annular groove 81, be provided with inner groove 85 in interior ring 84 outsides, inner groove 85 is provided with a plurality of projections 86, ring 84 outsides in projection 86 connects, another then connects with external toroidal ring 87 sides, and external toroidal ring 87 is provided with a plurality of to inner edge recessing hole 88, is extending an outer ring surface 89 toward the outside;

Top cover 9, have a big hole 94 in top cover 9 centers, ring cowling 95 is provided with a plurality of grooves 93, is lower than ring cowling 95 and is provided with a lug 92 in lateral border, be provided with a protruding L type coulisse 91 that maintains an equal level with ring cowling 95 bottom sides apart from lug 92 appropriate locations, place, ring cowling 95 tops has a plurality of grooves 93;

Upper frame 10 is provided with a plurality of slotted eyes 101 at middle appropriate location, supplies the lug 92 of top cover 9 to enter and be threaded to place, slotted eye 101 tops, makes it not skid off, and the Jiong template 102 that the both sides of upper frame 10 have punching out to form blocks friction disc 103 in the center.

Promptly constitute laser disk clamping device of the present utility model by above-mentioned each parts, now be further analyzed and described the integrally-built embodiment of its assembly as follows.Copper post 2 center holes 23 are passed the right cylinder 11 of motor 1, copper post 2 is a plug-in type improved plastics structural shape with bearing body 3, be provided with on the copper post 2 on the right cylinder 11 that a screw hole 24 is locked together in motor 1,36 on bearing pad sticks on the anchor ring 32 on the bearing body 3, coil tension spring 4 is inserted between the endless tube 54 and hook post 53 of flexible bearing 5, because the slotted eye 34 that a plurality of hook posts 53 are aimed at bearing body 3 is inserted, insert back hook post 53 and can hook slotted eye 34 sides, thereby utmost point difficult drop-off, thus, bearing body 3, coil tension spring 4 combines with flexible bearing 5, and the right cylinder 11 of motor 1 passes the center hole 35 of bearing body 3 and the endless tube 54 of flexible bearing 5, so finishes the combination of bearing body a; In addition, cramping body b places the little nose circle of volute spring 7 in the ring groove 62 of clamping loam cake 6 earlier, the hook post 68 that a plurality of recess holes 88 of clamping lower cover 8 are aimed at clamping loam cake 6 is put and is closed again, and hook post 68 also is stuck in outer ring surface 89 inner edge places, make clamping loam cake 6, volute spring 7,8 triplicitys of clamping lower cover together, the great circle 94 of top cover 9 is involutory with external toroidal ring 87 lateral borders of clamping lower cover 8, its integral body is placed upper frame 101 centers, the lug 92 of top cover 101 is inserted within the slotted eye 101 and is threaded to the place, top, in this moment protruding L type coulisse 91 prop up upper frame 10, upper frame 10 can not moved.

Action embodiment of the present utility model as shown in Figure 3, the characteristics that this device utilizes the center pit of different model laser disk to vary in size, CD and LD are sandwiched in Different Plane respectively, the center pit of CD is clamped by interior ring 82 above being positioned over bearing inner edge 52, the center pit of LD is clamped (as shown in Figure 4) by external toroidal ring 84 above being positioned over bearing outer rim 51, to increase folder face spring space, above CD or LD, system is with cramping body b clamping, owing to adopt the volute spring 7 and the top of clamping loam cake 6 to embed a steel ball 64, if press down large-area LD, but its downforce of mean allocation keeps the quality of balance of LD, when bearing body a and cramping body b to fashionable, because bearing body a is provided with coil tension spring 4 and cramping body b is provided with volute spring 7, can tune to ideal point, thereby quality of balance is splendid and do not injure CD or the LD that is held, and not influenced by the width of CD or LD, its assembly features is to use screw seldom, thereby increases the simple and easy degree of combine and assemble.

Take a broad view of above-mentioned dependency structure narration and explanation, the utility model possesses following several advantages as can be known:

1. the utility model is formed with simple structure, institute is must part few, and wherein bearing pad, expansion washer, clamping loam cake, clamping lower cover, top cover and combining of upper frame etc. are all utilized the elasticity of plastics itself, add the grab assembling of ingenious design, make convenient for assembly, maintenance job.

2. the utility model takes the top of volute spring and clamping loam cake to embed a steel ball, if press down large-area LD, but its downforce of mean allocation, the quality of balance of maintenance LD.

The utility model when bearing body and cramping body to fashionable, because the bearing body is provided with coil tension spring and cramping body is provided with volute spring, can adjust spring pressure to ideal point, not injure the CD of clamping place or LD and be not subjected to its thickness different and influence, the DE of clamping strength, allow that sugarcane is big.

The above only is preferred embodiment of the present utility model; be not so promptly limit the claim of the utility model; therefore the equivalent structure done of every utilization the utility model instructions and accompanying drawing content changes, and all should be contained among the utility model protection domain.

Claims

1, a kind of laser disk clamping device is characterized in that comprising bearing body and cramping body two parts, and wherein assembly comprises motor, screw, bearing body, coil tension spring, flexible bearing, clamping loam cake, volute spring, clamping lower cover, top cover and upper frame; Wherein,

2, laser disk clamping device as claimed in claim 1 is characterized in that, is stamped two concentric rings under the clamping of cramping body, and two anchor ring height differences are utilized the center pit difference of laser disk, are respectively applied for clamping CD and LD.

3, laser disk clamping device as claimed in claim 1, it is characterized in that the coil tension spring of bearing body, flexible bearing and putting of bearing body are closed, is to be provided with a plurality of hook posts with flexible bearing, each hook post is aimed at the slotted eye of bearing body and is inserted, and makes the hook post hook the slotted eye side after inserting.

4, laser disk clamping device as claimed in claim 1 is characterized in that, is covered with protruding hook in the clamping of cramping body, is covered with slotted eye under the clamping, clamping loam cake and clamping lower cover is put closed.

5, laser disk clamping device as claimed in claim 1 is characterized in that, the bearing body is provided with coil tension spring, and cramping body is provided with volute spring, is covered with a steel ball in the clamping, and this three device is provided with simultaneously, utilizes motor drive shaft to reach automatically to positive justification again.