CN209735965U

CN209735965U - Clamping device for positioning disc

Info

Publication number: CN209735965U
Application number: CN201920041792.5U
Authority: CN
Inventors: 陈志维; 蔡子君
Original assignee: Mingyan (suzhou) Automation Equipment Co Ltd
Current assignee: Mingyan (suzhou) Automation Equipment Co Ltd
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2019-12-06
Anticipated expiration: 2029-01-10

Abstract

the utility model discloses a clamping device for disc location, including brace table, fixed holder and activity holder, constitute the centre gripping space of disc, its characterized in that between the corresponding side of fixed holder and activity holder: the tail end of the movable clamping piece is provided with an inclined plane which is provided with an inclined pin driving mechanism, a driving rod of the inclined pin driving mechanism is provided with a driving inclined plane matched with the inclined plane on the movable clamping piece, and the movable clamping piece is limited by a first slide way and has freedom degree of movement along the direction of clamping the movable clamping piece; the driving rod is limited by a second slide way, and the sliding direction of the second slide way is vertical to that of the first slide way. The utility model discloses avoided the disc of the ultra-thin shape in the centre gripping process to produce the condition of slope, beating, improved the centre gripping precision, can adopt periphery centre gripping mode fixed to thin shape disc, provide the basis for realizing full automatization operation.

Description

Clamping device for positioning disc

Technical Field

The utility model relates to an encoder installation device, concretely relates to disc clamping device for encoder installation to and corresponding clamping method.

Background

Encoders are used for rotational positioning, for example, for positioning of servo motors. The servo encoder generally comprises a code disc and a signal sensing device, and for a magnetoelectric encoder, generally, a circuit scribed line is deposited on a glass code disc, a permanent magnet is arranged below a supporting disc, and the glass code disc is fixed on the supporting disc in a dispensing and fitting manner so as to be convenient to install and use.

In order to realize dispensing and gluing of the coded disc, the method adopted in the prior art is that the support disc is locked through the rotating shaft, UV glue is dispensed on the support disc, the glass coded disc is placed on the support disc, the glass coded disc is pushed to be positioned, and finally the glue is solidified through the UV lamp. For example, chinese utility model patent CN205764734U discloses an encoder installation mechanism, including external locating component, mount table and install metal tray, pivot, runner assembly and the glass code wheel on the mount table, its characterized in that, installation mechanism still including installing the code wheel automatic adjustment subassembly on the mount table, metal tray locking in the pivot, code wheel automatic adjustment subassembly press from both sides tight glass code wheel, make glass code wheel and pivot center align the back through external locating component, place the glass code wheel on metal tray and bond, code wheel automatic adjustment subassembly loosen the glass code wheel, the runner assembly drive the glass code wheel through the pivot and rotate.

Among the above-mentioned technical scheme, lock metal tray (supporting disk) through the pivot, need manual intervention during the operation, be difficult to realize full automation. Accordingly, there is a need for an improved puck positioning device. Because the upper surface of the supporting disk needs to be glued and the glass code disk is attached, the general consideration is to adopt a peripheral clamping method to match with automatic equipment for positioning. However, the utility model discloses an occasion, because supporting disk thickness is very little, only 1.5 millimeters usually, adopt conventional clamping device can lead to the disc to take place to incline, beat, make its levelness change to influence its precision with the laminating of glass code wheel, and for guaranteeing the effect of encoder, will reach 5 microns to the requirement of laminating precision, conventional clamping device can lead to the decline of yields. Therefore, in the prior art, the positioning of the supporting disk can only be locked by adopting a rotating shaft, the precision is ensured by manual intervention, and full-automatic high-precision dispensing is difficult to realize.

Disclosure of Invention

The invention aims to provide a clamping device for positioning a disc, which realizes high-precision horizontal clamping of a thin disc.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a clamping device for positioning a disc comprises a supporting table, a fixed clamping piece and a movable clamping piece, wherein a clamping space of the disc is formed between corresponding side surfaces of the fixed clamping piece and the movable clamping piece; the driving rod is limited by a second slide way, and the sliding direction of the second slide way is vertical to that of the first slide way.

In the technical scheme, the driving device does not directly act on the clamped disc by arranging the taper pin driving mechanism, but contacts the movable clamping piece firstly, changes the stress direction by utilizing the inclined plane, and contacts the clamped disc by the movable clamping piece. In the process, the influence of the vibration phenomenon existing when the driving device is started on the disc is avoided, and meanwhile, the disc is prevented from inclining, jumping and the like due to impact force through stress steering and action gap buffering, so that the stability of clamping is ensured.

According to a further technical scheme, a pressing plate is slidably attached to the upper portion of the movable clamping piece. The movable clamping piece is limited in the vertical direction through the pressing plate, the movable clamping piece is guaranteed to slide in the horizontal direction, lateral acting force does not exist at the contact position of the movable clamping piece and the disc, and the disc cannot tilt or jump.

in the above technical scheme, the sliding direction of the first slide is parallel to the normal direction of the disc passing through the contact stress central point when the disc is clamped by the movable clamping piece.

According to the preferable technical scheme, an included angle between an inclined plane at the tail end of the movable clamping piece and the sliding direction of the first slide way is 50-65 degrees. Through this angle setting, can provide great clamp force with less drive power, make simultaneously activity holder with less speed and disc contact, guarantee the stability of centre gripping.

In the above-described technology, the drive rod is driven by the cylinder in the angle pin drive mechanism.

According to a further technical scheme, the movable clamping piece is provided with a return spring which enables the movable clamping piece to be far away from the clamping space.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. the utility model discloses a set up taper pin actuating mechanism, avoided the disc of the ultra-thin shape in the clamping process to produce the condition of slope, beating, improved the centre gripping precision to, can adopt the periphery centre gripping mode fixed to thin shape disc, provide the basis for realizing full automatization operation.

2. the utility model discloses a taper pin actuating mechanism can play the amplification to drive power, has increased the clamping-force from this, has guaranteed the stability of centre gripping.

3. The utility model discloses a through the normal direction's in axle center driving force, the centre gripping is reliable and stable.

Drawings

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

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 2;

FIG. 4 is a right side view of FIG. 2;

FIG. 5 is a schematic diagram of an embodiment installed on a pipeline.

Wherein: 1. a support table; 2. fixing the clamping piece; 3. a movable clamping member; 4. a disc; 5. a drive rod; 6. a skew pin drive mechanism; 7. pressing a plate; 8. a groove.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

The first embodiment is as follows: referring to fig. 1 to 4, a clamping device for positioning a disc comprises a supporting table 1, a fixed clamping piece 2 and a movable clamping piece 3, wherein a clamping space of the disc 4 is formed between corresponding side surfaces of the fixed clamping piece 2 and the movable clamping piece 3, the fixed clamping piece 2 is fixed on the supporting table 1, an L-shaped groove 8 is formed in the supporting table to form a first slideway and a second slideway, the movable clamping piece 3 is limited by the first slideway and has a degree of freedom of movement in a direction of clamping the movable clamping piece, and a pressing plate 7 is slidably attached to the upper part of the movable clamping piece 3, so that the movable clamping piece 3 can only slide in a horizontal plane; the tail end of the movable clamping piece 3 is provided with an inclined plane which is provided with an inclined pin driving mechanism 6, a driving rod 5 of the inclined pin driving mechanism is provided with a driving inclined plane matched with the inclined plane on the movable clamping piece 3, the driving rod 5 is limited by a second slide way, and the sliding direction of the second slide way is vertical to the sliding direction of the first slide way.

in this embodiment, an included angle between the inclined plane at the end of the movable clamping piece 3 and the sliding direction of the first slideway is 60 degrees; the movable clamping piece is provided with a return spring which enables the movable clamping piece to be far away from the clamping space.

Referring to fig. 5, the clamping device of this embodiment can be installed on a production line, in a ready state, the driving rod of the taper pin driving mechanism is recovered, the movable clamping member is far away from the clamping space, after the disc reaches the station along with the movement of the production line, the disc is placed in the clamping space by the manipulator, so that the disc is in a horizontal state, the taper pin driving mechanism is actuated, the driving rod extends out, the inclined surface of the end part of the driving rod presses the movable clamping member, so that the movable clamping member slides along the first slideway, contacts and presses the disc, so that the disc is positioned between the movable clamping member and the fixed clamping member. And then, the dispensing and fitting device arranged at the station acts to realize the high-precision dispensing and fitting of the coding disc.

Through testing, the device of the embodiment is adopted, the clamping precision is between 1.2 and 2 microns, and the requirement of product precision is met.

Claims

1. the utility model provides a clamping device for disc location, includes a supporting bench, fixed holder and activity holder, constitute the centre gripping space of disc between the corresponding side of fixed holder and activity holder, its characterized in that: the tail end of the movable clamping piece is provided with an inclined plane which is provided with an inclined pin driving mechanism, a driving rod of the inclined pin driving mechanism is provided with a driving inclined plane matched with the inclined plane on the movable clamping piece, and the movable clamping piece is limited by a first slide way and has freedom degree of movement along the direction of clamping the movable clamping piece; the driving rod is limited by a second slide way, and the sliding direction of the second slide way is vertical to that of the first slide way.

2. A clamping device for puck positioning according to claim 1, characterized in that: and a pressing plate is arranged above the movable clamping piece in a slidable fit manner.

3. A clamping device for puck positioning according to claim 1, characterized in that: the sliding direction of the first slide is parallel to the normal direction of the disc passing through the contact stress central point when the disc is clamped by the movable clamping piece.

4. A clamping device for puck positioning according to claim 1, characterized in that: the included angle between the inclined plane at the tail end of the movable clamping piece and the sliding direction of the first slide way is 50-65 degrees.

5. A clamping device for puck positioning according to claim 1, characterized in that: in the angle pin driving mechanism, a driving rod is driven by an air cylinder.

6. A clamping device for puck positioning according to claim 1, characterized in that: the movable clamping piece is provided with a return spring which enables the movable clamping piece to be far away from the clamping space.