CN201189660Y - An adjustable gravity balance device - Google Patents

Abstract

The utility model discloses an adjustable gravity balance device. The upper locking plate hinged by two semicircular plates and the lower locking plate hinged by two semicircular plates are set on the column of the supported equipment. The upper locking plate has a semicircular plate and the corresponding lower locking plate The semi-circular plates of the locking disc are connected by two tie rods, and the tie rods exposed outside the upper locking disc are respectively hinged with the end points of the respective supporting rods. One end of the two gas springs is respectively installed on the other side of the lower locking disc through the hinge seat. On a semicircular plate, the other ends of the two gas springs are respectively hinged on the support rods near the end of the pull rod. The guide holes on both sides of the collar are respectively set in the respective support rods, and slide axially along the two support rods. The utility model can adjust the size and direction of the balance force according to the actual situation, so as to achieve the best gravity balance effect. The whole balance mechanism is connected with the supported equipment through the locking device, without changing the original structure of the supported equipment and Easy to disassemble and maintain.

Description

An adjustable gravity balance device

technical field

The utility model relates to a balance mechanism, in particular to an adjustable gravity balance device.

Background technique

The structure of joint robots, flexible arm measuring machines and other equipment will be deformed under the action of their own gravity, which will affect their positioning or measurement accuracy. Those who are prone to fatigue.

At present, in joint robots and flexible arm measuring machines, tension springs are generally used for gravity balance, but this method is difficult to install, disassemble and maintain, and after the design is completed, it is impossible to flexibly adjust the fulcrum and direction of the balance force. The size of is also generally difficult to adjust.

Contents of the invention

In order to overcome the structural deformation of joint robots, flexible arm measuring machines and other equipment under the action of gravity, and reduce the labor intensity of operators, the purpose of this utility model is to provide an adjustable gravity balance device, which is easy to disassemble and the size and direction of the balance force can be adjusted. Tune.

The technical scheme that the utility model solves its technical problem adopts is:

The upper locking plate hinged by two semicircular plates and the lower locking plate hinged by two semicircular plates are set on the column of the supported equipment. The upper locking plate has a semicircular plate and the corresponding lower locking plate The semi-circular plates of the locking disc are connected by two tie rods, and the tie rods exposed outside the upper locking disc are respectively hinged with the end points of the respective supporting rods. One end of the two gas springs is respectively installed on the other side of the lower locking disc through the hinge seat. On a semicircular plate, the other ends of the two gas springs are respectively hinged on the support rods near the end of the pull rod. The guide holes on both sides of the collar are respectively set in the respective support rods, and slide axially along the two support rods.

The utility model has the beneficial effects that: the size and direction of the balance force can be adjusted according to the actual situation, so as to achieve the best gravity balance effect, and the whole balance mechanism is connected with the supported equipment through the locking device without changing the supported equipment. The original structure of the equipment is easy to disassemble and maintain.

Description of drawings

Fig. 1 is a three-dimensional axial view of the utility model.

Fig. 2 is a diagram of an embodiment of the flexible arm measuring machine used in the present invention.

In the figure: 1. Lower locking disc, 2. Adjusting nut, 3. Pull rod, 4. Upper locking disc, 5. Support rod, 6. Collar, 7. Gas spring, 8. Hinged seat, 9. Column, 10. Swing arm.

Detailed ways

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

As shown in Figure 1, the utility model includes an upper locking disc 4 hinged by two semicircular plates and a lower locking disc 1 hinged by two semicircular plates, which are set on the column of the supported equipment and locked. A semicircular plate of the tight disk 4 and a semicircular plate of the corresponding lower locking disk 1 are connected by two tie rods 3, and the tie rods 3 exposed outside the upper locking disk 4 are connected with the end points of the respective supporting rods 5 respectively. Hinged, one end of the two gas springs 7 is respectively installed on the other semicircular plate of the lower locking disc through the hinge seat 8, and the other ends of the two gas springs 7 are respectively hinged on the support rod 5 near the end of the pull rod 3, and the collar 6 The guide holes on both sides are respectively sleeved in the respective support rods 5, and slide axially along the two support rods 5.

A scale that can indicate the distance between the upper and lower locking discs is engraved on the pull rod 3 .

The working principle of the utility model is as follows:

As shown in Figure 1 and Figure 2, one end of the two semicircular plates of the upper locking disc 4 and the lower locking disc 1 are hinged together, and the other end can pass through the bolt and nut after the two semicircular plates clamp the column 9 Locked together, the upper locking disc 4 and the lower locking disc 1 play the role of positioning and support. By adjusting the two nuts on the pull rod 3, the distance between the upper locking disc 4 and the lower locking disc 1 can be changed. At this time, the support angle of the gas spring 7 will change, so as to achieve the purpose of adjusting the direction of the balance force. When the distance between the tight disk 4 and the lower locking disk 1 decreases, the support angle of the gas spring 7 decreases, otherwise the support angle of the gas spring 7 increases, and the support force of the gas spring 7 can be adjusted through its own corresponding functional mechanism . The collar 6 is set on the swing arm 10 of the flexible arm measuring machine, and the supporting rod 5 can slide freely in the guide holes on both sides of the collar 6, so as not to restrict the movement of the supported equipment, but only to support the swing arm 10. The number and installation position of the collars 6 can be flexibly determined according to different situations. Generally, the number of collars 6 can be set to 1-3. The supporting rod 3 transmits the supporting force of the gas spring 7 to the swing arm 10 through the collars 6 .

Claims (2)

1. tunable gravitational equilibrium device, it is characterized in that: be enclosed within on the column of supported equipment by the hinged last locking plate (4) of two semicircular plates with by two hinged following locking plates (1) of semicircular plate, last locking plate (4) a slice semicircular plate and corresponding two pull bars (3) that pass through between locking plate (1) a slice semicircular plate down connect, the pull bar (3) that exposes outside last locking plate (4) is hinged with the end points of pressure pin (5) separately respectively, one end of two air springs (7) is installed in down respectively on another sheet semicircular plate of locking plate by hinged seat (8), the other end of two air springs (7) is hinged on respectively near on the pressure pin (5) of pull bar (3) one ends, the pilot hole of the collar (6) both sides is enclosed within respectively separately in the pressure pin (5), and is in axial sliding along two pressure pins (5).

2. a kind of tunable gravitational equilibrium device according to claim 1 is characterized in that: described pull bar is carved with the scale that can indicate distance between the upper and lower locking plate on (3).

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