CN218396613U - Rotating mechanism with rotation detection limiting function and welding machine - Google Patents

Abstract

The utility model belongs to the technical field of the welding equipment technique and specifically relates to a rotary mechanism and welding machine with rotatory limit function that detects, rotary mechanism includes the frame, rotating assembly and the spacing subassembly of rotatory detection, rotatory detection spacing subassembly has the sensor, dog and elastic element, the utility model discloses a rotary mechanism with rotatory limit function that detects utilizes the execution seat can drive the dog and remove to trigger sensor when rotating, so can be when the sensor is triggered by the dog, detect the zero position of execution seat, after the execution seat leaves zero position, the dog just can be driven to form spacingly to the execution seat by elastic element, prevent to execute the seat forward and rotate to crossing extreme position to realize that the dog can detect the zero position of execution seat, can carry on spacingly to the execution seat again, have simple structure, the overall arrangement of being convenient for, advantages such as convenient assembling and with low costs.

Description

Rotating mechanism with rotation detection limiting function and welding machine

Technical Field

The utility model belongs to the technical field of the welding equipment technique and specifically relates to a rotary mechanism with rotatory limit function that detects still relates to one kind in addition and contains the above-mentioned welding machine that has rotatory rotary mechanism that detects limit function.

Background

The automatic welding equipment is also called as welding equipment robot, is suitable for welding various electronic components, it mainly comprises drive assembly and flatiron assembly (welding tool), the drive assembly usually includes X-axis moving mechanism, Z-axis moving mechanism and R-axis rotary mechanism, the Z-axis moving mechanism is disposed on X-axis moving mechanism, drive the left and right displacement of Z-axis moving mechanism by X-axis moving mechanism, the R-axis rotary mechanism is disposed on Z-axis moving mechanism, drive the up-and-down displacement of R-axis rotary mechanism by Z-axis moving mechanism, fixed with the executive seat on the delivery end of R-axis rotary mechanism, the flatiron assembly is mounted on the executive seat, the R-axis rotary mechanism is used for driving the executive seat to rotate and move around Z-axis within the predetermined angular range, the initial position of the executive seat rotation is the zero position (zero position), the position that can rotate to the maximum angle from the zero position is the extreme position;

at present, in order to acquire the zero position of the executive seat and prevent the executive seat from rotating beyond the limit position, two sets of independent structures need to be arranged on the R-axis rotating mechanism, one set of structure is a zero position detection structure specially used for detecting the zero position of the executive seat, and the other set of structure is a limit structure specially used for preventing the executive seat from rotating beyond the limit position, so that the structure is complex, and the assembly of the R-axis rotating mechanism is not facilitated.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems that two independent structures are required to be arranged on an R-axis rotating mechanism in the prior art, one structure is a zero position detection structure specially used for detecting the zero position of an execution seat, and the other structure is a limiting structure specially used for preventing the execution seat from rotating beyond the limit position, so that the structure is complex and the assembly of the R-axis rotating mechanism is not facilitated, a rotating mechanism with a rotation detection limiting function is provided, and a welding machine comprising the rotating mechanism with the rotation detection limiting function is also provided; the rotating mechanism with the rotation detection limiting function can also be used for a dispenser and the like.

The utility model provides a technical scheme that its technical problem adopted is: a rotation mechanism with a rotation detection limit function includes:

a frame;

the rotating assembly is arranged on the rack, the motor is in transmission connection with an output shaft of the rotating assembly, and the output shaft is used for driving the execution seat to rotate around a rotating axis between a zero position and a limit position;

the rotation detection limiting assembly is provided with a sensor, a stop block and an elastic element, and the elastic element is used for driving the stop block to move to a position where the sensor is not triggered when the execution seat leaves a zero position; when the execution seat rotates reversely to the zero position, the execution seat pushes the stop block to move to the position of the trigger sensor; when the executing seat rotates forwards to the limit position, the stop block blocks the forward rotation of the executing seat.

Utilize in this scheme to carry out the seat and can drive the dog and remove to trigger sensor when rotating, so can be when the sensor is triggered by the dog, detect the zero point position of carrying out the seat, carry out the seat and leave behind the zero point position, the dog just can be driven to form spacingly to carrying out the seat by elastic element, prevent to carry out the seat forward and rotate to crossing extreme position to realize that the dog can detect the zero point position of carrying out the seat, can carry on spacingly to carrying out the seat again.

In order to facilitate the realization that the execution seat can drive the stop block to move when rotating, further, a pushing piece is fixed on the execution seat, and the stop block is hinged to the rack and is positioned on the rotating track of the pushing piece;

when the execution seat rotates reversely to a zero position, the pushing piece pushes the stop block to swing to a position of the trigger sensor; when the executing seat rotates forwards to the limit position, the stop block forms a stop for the pushing piece rotating forwards along with the executing seat.

In order to realize the automatic position change of the stop block, a mounting seat is further fixed on the rack, the stop block is hinged on the mounting seat, one end of the elastic element is connected with the stop block, and the other end of the elastic element is connected with the mounting seat or the rack; therefore, the stopper is forced to automatically swing against the mounting seat along with the forward rotation of the execution seat through the elastic element.

In order to facilitate the layout, the sensor is prevented from interfering with the elastic element, and further, the sensor is positioned on one side of the stopper, and the elastic element is positioned on the other side of the stopper.

In order to facilitate the abutting of the stop block, furthermore, a concave part is arranged on the mounting seat, and one end of the stop block, which is far away from the pushing part, is hinged and mounted in the concave part.

In order to solve the problem that pencil and trachea are twined easily in rotatory in-process, furtherly, rotating assembly's output shaft has a first wire hole of walking along the axis direction through, and first wire hole of walking extends along upper and lower direction.

In order to realize still can prevent the easy winding problem of pencil and trachea when output shaft and execution seat directly ally oneself with, furtherly, output shaft and execution seat fixed connection, it has the second of walking the relative setting in line hole with first to run through on the execution seat and walks the line hole, and the second is walked the line hole and is extended along upper and lower direction.

In order to shorten the arrangement length of the air pipes and the wiring harnesses on the front side and the rear side of the execution seat, a through hole extending along the front-rear direction penetrates through the execution seat.

In order to protect the air pipe and the wiring harness, furthermore, a protective coil matched with the through hole is arranged in the through hole.

The utility model also provides a welding machine, including foretell rotary mechanism that has rotatory limit function that detects.

The beneficial effects of the utility model are that: the utility model discloses a rotary mechanism with rotatory limit function that detects utilizes the execution seat to drive the dog and remove to trigger sensor when rotating, so can be when the sensor is triggered by the dog, detect the zero point position of execution seat, the execution seat leaves behind the zero point position, the dog just can be driven to form spacingly to the execution seat by elastic element, prevent to execute the seat forward and rotate to crossing extreme position, thereby realize that the dog can detect the zero point position of execution seat, can carry on spacingly to the execution seat again, and is simple in structure, the overall arrangement of being convenient for, advantages such as convenient to assemble and with low costs.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a three-dimensional schematic diagram of one side of the rotating mechanism with rotation detection limiting function of the present invention;

fig. 2 is a three-dimensional schematic view of the other side of the rotating mechanism with the rotation detection limiting function of the present invention;

FIG. 3 is an enlarged partial schematic view of A in FIG. 2;

fig. 4 is a three-dimensional schematic view of a rotation detecting and limiting assembly according to the present invention;

FIG. 5 is a schematic view of the stop cooperating with the pusher when the actuator seat reaches the zero position;

FIG. 6 is a schematic view of the elastic element driving the pushing member away from the sensor when the actuator moves away from the zero position when the actuator moves forward;

FIG. 7 is a schematic view of the engagement between the stopper and the pushing member when the actuator is rotated forward to the limit position;

FIG. 8 is a schematic view of the pushing member driving the stopper to move toward the sensor when the actuator rotates in the reverse direction;

in the figure: 1. the device comprises a rack, 2, a motor, 3, a rotating assembly, 301, an output shaft, 3011, a first wiring hole, 4, an execution seat, 401, a second wiring hole, 5, a sensor, 6, a stop block, 7, an elastic element, 8, a pushing piece, 9, a mounting seat, 901, a concave part, 10 and a protective coil.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings which illustrate the basic structure of the invention in a schematic manner only, and thus show only the components which are relevant to the invention, and the directions and references (e.g. upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

Example 1

As shown in fig. 1-8, a rotating mechanism with rotation detection limiting function comprises a frame 1, a rotating assembly 3 and a rotation detection limiting assembly;

the rotating assembly 3 is mounted on the frame 1, the motor 2 is in transmission connection with an output shaft 301 of the rotating assembly 3, and the output shaft 301 is used for driving the actuating seat 4 to rotate around a rotation axis between a zero position and a limit position, for example, when the actuating seat 4 rotates within an angle range of 0-360 degrees, the limit position is that the actuating seat 4 cannot continue to rotate in the forward direction after rotating 360 degrees from the zero position, and can only rotate in the reverse direction; it should be noted that the present embodiment does not limit the rotation angle range of the executive seat 4, and the adjustment can be performed according to the actual situation; the motor 2 and the rotating assembly 3 can be directly replaced by a hollow rotating platform in the prior art, a turntable of the hollow rotating platform is the output shaft 301, the executive seat 4 is coaxially fixed on the output shaft 301 of the hollow rotating platform, and it is understood that when the executive seat 4 and the output shaft 301 are coaxially arranged, the rotating axis of the executive seat 4 is the axis of the output shaft 301; the rotating component 3 can also comprise a gear set or a worm gear, and the motor 2 is in transmission connection with the output shaft 301 through the gear set or the worm gear, so that the purpose of increasing torque is achieved.

The rotation detection limiting assembly is provided with a sensor 5, a stop block 6 and an elastic element 7, the elastic element 7 is used for driving the stop block 6 to move to a position where the sensor 5 is not triggered when the execution seat 4 leaves a zero point position, and the sensor 5 is not triggered, namely the sensor 5 does not detect the stop block 6; when the execution seat 4 rotates reversely to the zero position, the execution seat 4 pushes the stop 6 to move to the position of the trigger sensor 5, and the trigger sensor 5 means that the sensor 5 detects the stop 6; when the executive seat 4 rotates forwards to the limit position, the stop block 6 forms a stop for the forward rotation of the executive seat 4; it is noted that the forward rotation of the actuator seat 4 and the reverse rotation of the actuator seat 4 are: two opposite directions of rotation of the actuator socket 4 about the axis of rotation;

in this embodiment, the actuating seat 4 is fixed with a pushing member 8, the pushing member 8 may be rod-shaped, or may be a standard member such as a cylindrical pin or a screw, for example, when the pushing member 8 is a cylindrical pin, one end of the cylindrical pin may be fixed on the actuating seat 4 in an interference fit manner, and the other end is used for being matched with the stopper 6;

the stop block 6 is hinged to the rack 1, or a mounting seat 9 can be fixed on the rack 1, a recessed portion 901 is formed in the mounting seat 9, one end, far away from the pushing piece 8, of the stop block 6 is hinged to the recessed portion 901, so that the stop block 6 can be supported by the side wall of the recessed portion 901, the supporting stability is improved, one end, far away from the mounting seat 9, of the stop block 6 is located on the rotating track of the pushing piece 8, the execution seat 4 rotates reversely and can be in contact with one side of the pushing piece 8, the execution seat 4 rotates forward and can be in contact with the other side of the pushing piece 8, and specifically, when the execution seat 4 rotates reversely to a zero point position, the pushing piece 8 pushes the stop block 6 to swing to a position of the trigger sensor 5; when the actuating seat 4 rotates forwards to the limit position, the stop 6 forms a stop for the pushing piece 8 rotating along with the forward rotation of the actuating seat 4.

The elastic element 7 may specifically be a compression spring, a tension spring, or another elastic element 7, as an example, in this embodiment, the elastic element 7 is a tension spring, one end of the elastic element 7 is connected to the stopper 6, the other end of the elastic element is connected to the mounting seat 9 or the rack 1, and the middle portion of the stopper 6 and the rack 1 may be respectively provided with a connecting member such as a pin or a screw, so that one end of the tension spring may be hooked on the connecting member of the stopper 6, and the other end of the tension spring may be hooked on the connecting member of the rack 1; for convenience of layout, the sensor 5 is prevented from interfering with the elastic member 7, the sensor 5 is disposed on one side of the stopper 6, and the elastic member 7 is disposed on the other side of the stopper 6; therefore, the tension spring can pull the stop 6 along with the forward rotation of the execution seat 4, so that the stop 6 is automatically away from the sensor 5.

The sensor 5 may specifically employ a photoelectric sensor, such as a groove-type photoelectric sensor, an opposite-type photoelectric sensor, a reflector-type photoelectric sensor, and the like, as an example, in this embodiment, the sensor 5 employs a groove-type photoelectric sensor, when the stopper 6 swings into the groove of the groove-type photoelectric sensor, light emitted by the groove-type photoelectric sensor is shielded by the stopper 6, so that the groove-type photoelectric sensor is triggered to generate a signal, thereby knowing a zero position of the actuator seat 4; on the basis, the sensor 5 and the motor 2 are in signal connection with the controller, and once the sensor 5 is triggered by the stopper 6, the sensor 5 feeds back a signal to the controller, so that the controller controls the motor 2 to stop.

In an actual application scene, for example, when the welding machine is applied, the execution seat 4 needs to be provided with an air cylinder and some electronic components, and the number of wire harnesses and air pipes distributed from the machine frame 1 to the execution seat 4 is correspondingly large;

in order to solve the problem that the wire harness and the air pipe are easily wound in the rotating process, in this embodiment, a first wire hole 3011 penetrates through the output shaft 301 of the rotating assembly 3 along the axis direction, and the first wire hole 3011 extends along the up-down direction, for example, when the rotating assembly 3 adopts a hollow rotating platform, an inner ring hole of a turntable of the hollow rotating platform is the first wire hole 3011; the output shaft 301 is fixedly connected with the execution seat 4, a second wire hole 401 opposite to the first wire hole 3011 penetrates through the execution seat 4, and the second wire hole 401 extends along the up-down direction; therefore, when the output shaft 301 is directly connected with the executive seat 4, the wire harness and the air pipe on the rack 1 can sequentially pass through the first wire feeding hole 3011 and the second wire feeding hole 401 and then reach the executive seat 4, and the wire harness and the air pipe are prevented from being wound when the executive seat 4 rotates.

A through hole extending along the front-back direction penetrates through the execution seat 4, so that the air pipe and the wiring harness on the front side of the execution seat 4 can directly reach the back side of the execution seat 4 after penetrating through the through hole, and the arrangement length of the air pipe and the wiring harness on the front side and the back side of the execution seat 4 is shortened; the through hole can also be provided with a protective coil 10 matched with the through hole, and an air pipe and a wire harness on the front side of the executive seat 4 directly reach the rear side of the executive seat 4 after passing through the protective coil 10, so that the protective effect is achieved; the grommet 10 may be, for example, a rubber grommet;

the working principle of the embodiment is as follows:

the motor 2 drives the output shaft 301 of the rotating assembly 3 to rotate, the output shaft 301 drives the executing seat 4 to rotate, as shown in fig. 5 and 8, in the process of reverse rotation of the executing seat 4, when the pushing piece 8 pushes the stopper 6, so that the stopper 6 swings to the trigger sensor 5 against the tension of the tension spring, and the executing seat 4 reaches a zero point position; as shown in fig. 6, when the actuator seat 4 starts to rotate forward from the zero position until the pushing member 8 is separated from one side of the stopper 6, the stopper 6 is pushed against the side wall of the recess 901 of the mounting portion 9 under the pulling of the tension spring, as shown in fig. 7, the stopper 6 will limit the pushing member 8 when the pushing member 8 contacts with the other side of the stopper 6 along with the continuous forward rotation of the actuator seat 4, that is, the actuator seat 4 is limited, and the actuator seat 4 is prevented from rotating forward to exceed the limit position, so that the stopper 6 can detect the zero position of the actuator seat 4 and limit the actuator seat 4.

Example 2

A welding machine comprising the rotating mechanism with rotation detection limit function in the above embodiment 1.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides a rotary mechanism with rotatory limit function that detects which characterized in that: the method comprises the following steps:

a frame (1);

the rotating assembly (3) is installed on the rack (1), the motor (2) is in transmission connection with an output shaft (301) of the rotating assembly (3), and the output shaft (301) is used for driving the execution seat (4) to rotate around a rotating axis between a zero position and a limit position;

the rotation detection limiting assembly is provided with a sensor (5), a stop block (6) and an elastic element (7), and the elastic element (7) is used for driving the stop block (6) to move to a position where the sensor (5) is not triggered when the execution seat (4) leaves a zero point position; when the execution seat (4) rotates reversely to a zero position, the execution seat (4) pushes the stop block (6) to move to the position of the trigger sensor (5); when the execution seat (4) rotates forwards to the limit position, the stop block (6) stops the execution seat (4) from rotating forwards.

2. A rotation mechanism having a rotation detection limit function according to claim 1, characterized in that: a pushing piece (8) is fixed on the executing seat (4), and the stop block (6) is hinged to the rack (1) and is positioned on the rotating track of the pushing piece (8);

when the execution seat (4) rotates reversely to a zero position, the pushing piece (8) pushes the stop block (6) to swing to a position triggering the sensor (5); when the execution seat (4) rotates forwards to the limit position, the stop block (6) forms a block for the pushing piece (8) rotating forwards along with the execution seat (4).

3. A rotation mechanism having a rotation detection limit function according to claim 2, characterized in that: the frame (1) is fixed with a mounting seat (9), the stop block (6) is hinged to the mounting seat (9), one end of the elastic element (7) is connected with the stop block (6), and the other end of the elastic element is connected with the mounting seat (9) or the frame (1).

4. A rotation mechanism having a rotation detection limit function according to claim 3, characterized in that: the sensor (5) is positioned on one side of the stop block (6), and the elastic element (7) is positioned on the other side of the stop block (6).

5. A rotation mechanism having a rotation detection limit function according to claim 3, wherein: the mounting seat (9) is provided with a concave part (901), and one end of the stop block (6) far away from the pushing piece (8) is hinged and mounted in the concave part (901).

6. A rotation mechanism having a rotation detection limit function according to claim 1, characterized in that: an output shaft (301) of the rotating assembly (3) penetrates through a first wiring hole (3011) along the axis direction, and the first wiring hole (3011) extends along the up-down direction.

7. The rotation mechanism having a rotation detection limit function according to claim 6, characterized in that: output shaft (301) and execution seat (4) fixed connection, run through on execution seat (4) and have second walking hole (401) with first walking hole (3011) relative setting, second walking hole (401) extend along upper and lower direction.

8. The rotation mechanism having a rotation detection limit function according to claim 6, characterized in that: and a through hole extending along the front-back direction penetrates through the execution seat (4).

9. The rotation mechanism having a rotation detection limit function according to claim 8, characterized in that: and a protective coil (10) matched with the through hole is arranged in the through hole.

10. A welding machine, its characterized in that: comprising a rotation mechanism with rotation detection and limiting functions as claimed in any one of claims 1 to 9.

Images