CN1202121A - Positioning device - Google Patents

Abstract

The present invention discloses a positioning device for a tool, the positioning device having a mounting member (2) and a base frame (3), both detachably connected and locked to a support (1) located near a workpiece, and a rotatable member (5) mounted on the base frame, the rotatable member being rotatably connected to the mounting member (2), the rotatable member having an arm (6) on which a tool (4) mounted can also rotate. In the positioning device according to the invention, the arm (6) is connected to the rotatable member (5), thus the arm can move in the longitudinal direction, and the positioning device is equipped with a locking member (8) for mounting the arm (6) into the rotatable member (5).

Description

Positioning means

The invention relates to a positioning device for a tool, especially a tool for straightening an automobile shell. The device has a mounting part and a base frame, both of which are detachably connected and locked on a bracket. The bracket Located near the workpiece, the base frame is equipped with a rotatable part, which is rotatably connected to the mounting part, and has an arm on the rotatable part, and the tool mounted on it is also rotatable.

Vehicle shells and frames can be aligned with an alignment system that straightens a damaged car and restores it to a drivable condition. Conventional vehicle straightening systems have had problems getting the pulling or pushing tool into the various vehicle parts as well as possible, locking the tool in place or effectively pulling and/or pushing and/or Use the best possible method to achieve the support effect when carrying out the straightening work of the vehicle shell. Several different alignment devices are currently available for use in vehicle alignment systems, but they are generally complex and expensive. Another common disadvantage is the slower and less efficient positioning of the tool to the different vehicle parts and the less secure installation of the device in place. The same problem affects many other industrial work uses as well.

It is an object of the present invention to provide a tool positioning device which eliminates the problems of prior devices. A particular object of the present invention is to provide a positioning device by which the tool can be easily brought to the desired point and used efficiently. In addition, another object of the present invention is to provide a positioning device which is simple in construction, can be manufactured and used at low cost, and can be reliably locked. Yet another object of the present invention is to provide a device which can be used for mounting, supporting and aligning vehicles.

The objectives set above can be achieved with the positioning device of the invention, which is characterized by those features defined in the patent claims.

The positioning device according to the invention is provided with an arm longitudinally movably coupled to the rotatable member and provided with locking members for mounting the arm in the rotatable member. In this device it is firstly possible to turn the base frame to different directions relative to the support, the arm can additionally be moved longitudinally relative to the turnable part, while the tool can also be turned relative to the arm, the tool at the end of the arm can be moved by Send to the correct position on the workpiece such as the frame. The device has a simple structure, can be produced at low cost, and is easy to use. The locking in the different embodiments of the invention can be by previously known methods, eg by screws, pins, gears, friction or cones.

In another embodiment of the invention a second arm which is longitudinally adjustable and lockable for loading the tool can be mounted on the first arm. With this arm tool precise adjustment to the desired position is possible simply and quickly. Said further arm may effectively be a column rotatably connected to a support provided at the end of the first arm. At this time, the second arm can also be adjusted by rotating around its short axis, so that the two arms can be accurately rotated from the desired direction and adjusted to the proper position, so that operations such as pulling, pushing and supporting can be performed from the correct position. Accurately complete in the direction. By means of this device, vehicles can be mounted on an alignment system or supported while performing alignment work, and additionally alignment tools can be installed and aligned with the workpiece from the proper orientation.

In another advantageous embodiment of the invention, the positioning device is provided with a plurality of locking elements arranged at a distance for mounting the base frame in the mounting element. The locking elements are spaced apart from each other to provide effective locking in the form of points. In particular, locking screws are capable of spot locking, and it is also effective when the locking screws have a sufficient number.

In another embodiment of the invention, the device is provided with a raised arm mounted on the first arm and extending upwardly. By means of the lifting arm, the tool mounted thereon can reach a place farther away from the frame, so that said tool can, for example, be extended into the superstructure of the vehicle.

In addition, the first arm is equipped with adjusters and locks that allow the length of the second arm to be adjusted and aligned with the tool in place. Adjusting and locking screws or hydraulic adjusting and operating devices can be used as adjusting and locking devices, for example.

An embodiment of the present invention will be described in detail below with the aid of the accompanying drawings, wherein:

Figure 1 is a side view of one embodiment of a positioning device to be attached to a frame of a vehicle straightening system in accordance with the present invention;

Fig. 2 is the side view that the device shown in Fig. 1 has been connected to the girder of the straightening system;

Figures 3 and 4 show a second and third embodiment of the device attached to the alignment system according to the invention,

Figure 5 shows the rotatable part of the device partly in section, and

Figures 6 and 7 are some uses of the device according to the invention in straightening a vehicle.

In the application shown in FIG. 1, the positioning device has a mounting 2 attached to the frame 1 of the alignment system of the vehicle 12 and a base frame 3 rotatably mounted thereon. The base frame 3 is equipped with a rotatable member 5 rotatably connected to the mounting member and an arm 6 connected to the rotatable member and movable in the longitudinal direction. The rotatable part 5 is attached to the mounting part by means of a locking part 9 . In the middle of the rotatable element is formed a hole 20 in which the arm 6 movable in the longitudinal direction is placed. In this embodiment the hole is mainly rectangular, so the cross-section of the arm is correspondingly rectangular. The device additionally has a locking member 8 for attaching the arm to the rotatable member. The arm is provided with a longitudinal slot on which the locking member is positioned.

The mounting part 2 is a part that can move on the crossbeam 1, and the crossbeam 1 is connected to the locking part below the crossbeam with the locking pin 14, and by means of the locking pin and the locking part, the mounting part can be tightened and firmly installed on the crossbeam. The mounting part is circular, and the rotatable part can be locked at a desired position relative to the mounting part by means of a locking part. Such a mount can be moved to a desired point on the frame relative to the vehicle frame, thus enabling easy positioning of the tool. The device can be attached to the longitudinal or transverse girders of the alignment system.

At the end of the arm 6 there is provided a fastening element 15 on which the tool 4 is rotatably mounted. The tool can be locked in the desired position with locking elements located on the side of the fastener. In the application shown in Figure 2, two devices according to the invention are used to couple a vehicle to an alignment system.

In the application shown in Figure 3, the structure of the device is similar to the device shown in Figure 1, except that an arm 7 is connected to a fastener 15 provided at the end of the arm 6, said arm and arm 6 Extends at right angles, in other words it is in a vertical direction with respect to the alignment system and the girder. The locking nut 12 acts as a lock for the arm in this application. Arm 7 is a rod and is rotatable around its axis, ie around fastener 15 .

Another fastener 16 is attached to the end of arm 7 and a third arm 13 is attached to this fastener. Fastener 16 is located transversely to the end of arm 7 so that arm 13 is at right angles to arm 7 . Arm 13 is also a rod and is rotatable about its fastener. In addition, the device has adjustment and mounting means to adjust and lock the arm relative to the fastener 16 .

At the end of the arm 13 there is also provided a third fastening element 17 on which is mounted a previously known clamping element 4 which can be attached to the frame of the vehicle 12 . The clamping member 4 is rotatably coupled to the fastener 17 . The clamping member is attached to extend either downwardly or upwardly from the fastener, so that the device can also be adjusted in this way and the clamping member can be set to a desired position.

The structure of the device shown in FIG. 4 is basically similar to the device shown in FIG. 3 . However, in the device shown in FIG. 4 there is also provided an obliquely upwardly extending lifting arm 11 which is connected to the arm 6 and at the other end of which the vertically extending arm 7 is connected.

Figure 5 shows the attachment of the rotatable member 5 to the mount 2 and the attachment of the arm to the rotatable member. The locking screws 8, 9 function as locking members. The mounting member is provided with suitably spaced holes all around, into which the locking screws are inserted. In this case the holes and screws lie on two planes. The rotatable element is provided with two bearing surfaces 21 in contact with the inner surface of the bore of the mounting element. Between the bearing surfaces there are two circular grooves 10 on which the locking screw rests. A firm lock is obtained by tightening the locking screw so that it presses against the surface of the groove. Sufficiently secure locking can be obtained with a few screws. Correspondingly, the arm 6 can be attached to the rotatable by means of locking screws 8 provided in holes in the frame of the rotatable. The screws used in this case can be of various types, for example with flat or hollow ends.

Figures 6 and 7 illustrate some of the functions of the positioning device when straightening the vehicle body. Fig. 6 shows the situation that the car body connected to the straightening platform 1 is connected to the positioning device with fasteners. When the pulling member is pulled downwards in the manner shown in FIG. 6, forces of different directions and magnitudes act on the mounting points. By arranging the positioning device according to the present invention in an appropriate manner and turning the fastener in a certain direction, the car body can be effectively straightened.

The invention is not limited to the preferred embodiment described above, but various changes can be made within the scope of the invention as defined in the appended claims. The positioning device according to the invention can also be used for other purposes than for straightening the vehicle body.

Claims (6)

1. A positioning device for a tool, said positioning device has a mounting part (2) and a base frame (3), both of which can be detachably mounted and locked on the bracket (1), which is positioned on the workpiece Nearby, the pedestal is equipped with a rotatable part (S), which is rotatably connected to the mounting part (2), and an arm (6), on which the tool (4) can be rotatably mounted, its The feature is that the arm (6) is movably mounted on the turntable (5) along the length direction, and the positioning device has a locking piece (8) to install the arm (6) in the turntable (5) . 2. Positioning device according to claim 1, characterized in that a further arm (7) adjustable in length and lockable for receiving the tool (4) is mounted on the first arm (6). 3. According to the positioning device of claim 1 or 2, it is characterized in that the mounting part (2) of the positioning device has a plurality of locking parts (9) spaced apart from each other by a certain distance in order to mount the base frame (3) to the mounting in item (2). 4. Positioning device according to claim 3, characterized in that the locking elements (8, 9) are screw-like members which provide point-like locking. 5. Positioning device according to claim 3 or 4, characterized in that the surface of the mounting part (2) comprises a machined groove (10) for the locking part. 6. According to the positioning device according to any one of claims 1-5, it is characterized in that said first arm (6) comprises an upwardly extending lifting arm (11) mounted on said first arm (6) the end of.

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