Multi-point rotary positioning device with revolution and rotation

Abstract

The present invention belongs to the field of automation equipment manufacturing technology, and specifically relates to a multi-point rotary positioning device of revolution and rotation, which is composed of a revolution turntable unit, a fixture positioning unit, a rotation power unit and an unlocking unit. The fixture positioning unit has a total of 4 groups, which are evenly installed on the revolution turntable unit. The rotation power unit is installed on the revolution turntable unit to achieve the transmission and separation of power from the fixture positioning unit. The unlocking unit is installed at the working station to achieve the opening and locking of the rotational motion state of the fixture positioning unit. The present invention is designed as a single modular design, and the relevant modules can be added or reduced according to the requirements of the production process to achieve flexible planning and design of the production line.

Description

Technical Field

[0001] The invention belongs to the technical field of automated equipment manufacturing, and in particular relates to a multi-point rotary positioning device of revolution and rotation. Background Art

[0002] At present, in the design of automated equipment, the output power of a single product fixture during the multi-station motion switching process is a more difficult problem. The conventional design scheme adopts a power unit for each individual station, which results in a great waste of equipment design and maintenance costs. Alternatively, a belt or gear is used to connect the individual station to the main power unit. The disadvantage of this scheme is that the design is difficult, and the process of each station must be consistent, which has great limitations. Summary of the invention

[0003] In order to effectively solve the problems in the above-mentioned background technology, the present invention proposes a multi-point rotation positioning device of revolution and rotation.

[0004] The specific technical solutions are as follows:

[0005] A multi-point rotary positioning device of revolution and rotation is composed of a revolution turntable unit, a fixture positioning unit, a rotation power unit and an unlocking unit. There are 4 groups of the fixture positioning units, which are evenly installed on the revolution turntable unit. The rotation power unit is installed on the revolution turntable unit to realize the transmission and separation of power from the fixture positioning unit. The unlocking unit is installed at a working station to realize the opening and locking of the rotational motion state of the fixture positioning unit.

[0006] Preferably, the revolving turntable unit includes a four-station cam divider, a secondary positioning bushing, a revolving turntable, a jig fixed disk and a fixed disk connecting piece, wherein the four-station cam divider realizes uniform speed switching between the four stations, is actually fixedly connected to the installation reference plane of the equipment, and remains stationary by default, the revolving turntable is screwed on the rotating indexing outer ring of the four-station cam divider, and as the cam divider rotates, the jig fixed disk is screwed and fixed to the fixed inner ring of the four-station cam divider through the fixed disk connecting piece, and the secondary positioning bushings are evenly installed on the revolving turntable to realize mechanical correction of the cam divider positioning.

[0007] Preferably, the jig positioning unit comprises a tool positioning mounting seat, a lock tongue mounting seat, a rectangular compression spring, a wedge-shaped positioning lock tongue, a lock tongue pulling seat, a positioning power shaft male head, a bearing lock nut, a bearing limit screw, a rolling bearing, a bearing mounting base and a lock tongue cover plate, wherein the bearing mounting base is screwed and fixed on the revolving turntable, there are two rolling bearings, which are installed at the upper limit shoulder of the positioning power shaft male head in front and back, the rolling bearing and the positioning power shaft male head are regarded as a whole and installed in the positioning slot hole of the bearing mounting base, the bearing lock nut is tightened at the rear end of the positioning power shaft male head, the tool positioning mounting seat is installed at the front end of the positioning power shaft male head, the lock tongue mounting seat is screwed and installed in front of the bearing mounting base, the rectangular compression spring is passed through the wedge-shaped positioning lock tongue shaft and installed together in the lock tongue mounting seat positioning slot, the lock tongue cover plate is installed above the lock tongue mounting seat to limit the movement of the lock tongue, and the lock tongue pulling seat is fixed to the wedge-shaped positioning lock tongue shaft end by bolts.

[0008] Preferably, the rotating unit comprises a slide cylinder mounting base, a slide cylinder, an initial position sensing bolt, a servo motor, a circular sensing switch, a sensing switch mounting bracket, a sensing bolt mounting ring, a motor power shaft female head and a servo motor mounting seat, wherein the slide cylinder mounting base is mounted and fixed on the fixture fixing plate, the slide cylinder fixing component is mounted on the slide cylinder mounting base, the slide cylinder sliding component is connected to the servo motor mounting seat, the servo motor and the sensing switch mounting bracket are mounted on the servo motor mounting seat, the motor power shaft female head is mounted on the servo motor output shaft, and power transmission is achieved by engaging with the positioning power shaft male head, the initial position sensing bolt and the sensing bolt mounting ring are mounted on the positioning power shaft male head, and the identification of the initial position state of the motor rotation is achieved through the circular sensing switch.

[0009] Preferably, the unlocking unit comprises a lock tongue bite block, a cylinder mounting seat and a dual-axis cylinder, wherein the cylinder mounting seat is actually fixedly connected to the installation reference plane of the equipment and remains stationary by default, the dual-axis cylinder is installed on the cylinder mounting seat, and the lock tongue bite block is installed on the protruding part of the dual-axis cylinder. As the cylinder pulls the wedge-shaped positioning lock tongue up and down, the opening and locking functions of the tooling positioning mounting seat in the rotational motion state are realized.

[0010] The beneficial effects of the present invention are as follows: the rotary power unit in the present invention is driven by the cylinder to perform telescopic movement, and a single power unit is adapted to multiple fixture positioning units through the engagement of the rotating shaft, realizing a low-cost fixture unit self-rotation function. The rotary power unit of the present invention adopts a servo motor, which can realize the unlimited angle positioning and unlimited angle rotation function of the fixture positioning unit, can adapt to the process requirements of a variety of different products, and has a high development and expansion capability. The present invention is designed as a single modular design, and the relevant modules can be added or subtracted according to the requirements of the production process to realize the flexible planning and design of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall axonometric schematic diagram of the present invention;

[0012] Figure 2 This is an axonometric diagram of the rotary disc unit in the present invention.

[0013] Figure 3a and Figure 3b It is an axonometric diagram of the fixture positioning unit in the present invention;

[0014] Figure 4 It is an axonometric schematic diagram of the rotary power unit in the present invention;

[0015] Figure 5 It is a schematic diagram of the unlocking unit in the present invention;

[0016] Figure 6 It is an isometric view of another direction of the present invention. DETAILED DESCRIPTION

[0017] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0018] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0019] like Figure 1-6As shown, a multi-point rotary positioning device of revolution and rotation is composed of a revolution turntable unit 1; a fixture positioning unit 2; a rotation power unit 3; and an unlocking unit 4.

[0020] The structure of the revolution turntable unit 1 is shown in Figure 2 As shown: it includes components such as a four-station cam divider 1.1, a secondary positioning bushing 1.2, a revolution turntable 1.3, a fixture fixed disk 1.4, and a fixed disk connector 1.5. The four-station cam divider 1.1 realizes uniform speed switching between the four stations. In practice, it is fixedly connected to the installation reference plane of the equipment and remains stationary by default. The revolution turntable 1.3 is screwed to the rotating indexing outer ring of the four-station cam divider 1.1 and rotates with the cam divider. The fixture fixed disk 1.4 is screwed to the fixed inner ring of the four-station cam divider 1.1 through the fixed disk connector 1.5 to provide installation conditions for the rotating power unit. The secondary positioning bushings 1.2 are evenly installed on the revolution turntable 1.3 to realize mechanical correction of the cam divider positioning. The revolution turntable unit 1 is driven by the four-station cam divider to rotate the revolution turntable 1.3 at a uniform speed to realize uniform speed switching between the four stations. The fixture fixing plate 1.4 is a mounting platform for fixing fixture units and other fixed components. The secondary positioning bushings 1.2 are evenly installed on the revolving turntable 1.3 to achieve mechanical correction of the cam divider positioning and initial origin positioning during equipment debugging.

[0021] The structure of the fixture positioning unit 2 is shown in Figure 3a and Figure 3bAs shown: it includes a tooling positioning mounting seat 2.1, a lock tongue mounting seat 2.2, a rectangular compression spring 2.3, a wedge-shaped positioning lock tongue 2.4, a lock tongue pulling seat 2.5, a positioning power shaft male head 2.6, a bearing lock nut 2.7, a bearing limit screw 2.8, a rolling bearing 2.9, a bearing mounting base 2.10, a lock tongue cover plate 2.11 and other components. The bearing mounting base 2.10 is screwed and fixed on the revolving turntable 1.3. There are two rolling bearings 2.9, which are installed at the upper limit shoulder of the positioning power shaft male head 2.6. The rolling bearing 2.9 and the positioning power shaft male head 2.6 are regarded as a whole and installed in the positioning slot hole of the bearing mounting base 2.10. The bearing limit screw 2.8 plays a role in limiting the axial deviation of the bearing. The bearing lock nut 2.7 is tightened at the rear end of the positioning power shaft male head 2.6 to lock the front and rear bearings. The tooling positioning mounting seat 2.1 is installed at the front end of the positioning power shaft male head 2.6 to provide conditions for the positioning and installation of the product fixture. The lock tongue mounting seat 2.2 is screwed and installed in front of the bearing mounting base 2.10. The rectangular compression spring 2.3 is passed through the axis of the wedge-shaped positioning lock tongue 2.4 and installed together in the positioning groove of the lock tongue mounting seat 2.2. The lock tongue cover plate 2.11 is installed above the lock tongue mounting seat 2.2 to limit the movement of the lock tongue. The lock tongue pulling seat 2.5 is fixed to the shaft end of the wedge-shaped positioning lock tongue 2.4 by dragging the bolt. There are 4 groups of the jig positioning units 2, which are evenly installed on the four stations of the revolving turntable 1.3. The production jigs of the products in actual production are installed on the tooling positioning mounting seat 2.1. The servo motor of the rotating power unit 3 provides rotational power to drive the tooling positioning mounting seat 2.1 to achieve multi-angle positioning rotation. The wedge-shaped positioning lock tongue 2.4 is pushed by the rectangular compression spring 2.3 to bite into the groove of the tooling positioning mounting seat 2.1 when there is no process requirement station, ensuring that the tooling positioning mounting seat 2.1 remains in place after the servo motor is disconnected from the power, avoiding position displacement during the rotation vibration of the turntable. When the turntable rotates to the working station, when the control system receives the signal that the male head 2.6 of the positioning power shaft and the female head 3.8 of the motor power shaft are docked in place, the unlocking unit 4 unit pulls the lock tongue pulling seat 2.5 downward to unlock the mechanical locking state, and then the servo motor drives it to rotate. When the process of this station is completed, the servo motor drives the tooling positioning mounting seat 2.1 to rotate to the initial position. After the circular induction switch 3.5 receives the signal that the initial position induction bolt 3.3 is in place, the unlocking unit 4 pushes the lock tongue pulling seat 2.5 upward to restore the mechanical locking state. The rotating power unit 3 retreats and loses power. The turntable rotates to switch the next group of positioning units to the working station, and the above work process is repeated.

[0022] The structure of the three rotating units is detailed in Figure 4As shown: it includes components such as a slide cylinder mounting base 3.1, a slide cylinder 3.2, an initial position sensing bolt 3.3, a servo motor 3.4, a circular sensing switch 3.5, a sensing switch mounting bracket 3.6, a sensing bolt mounting ring 3.7, a motor power shaft female head 3.8, and a servo motor mounting seat 3.9. The slide cylinder mounting base 3.1 is mounted and fixed on the fixture fixing plate 1.4, the slide cylinder 3.2 fixing component is mounted on the slide cylinder mounting base 3.1, and the slide cylinder sliding component is connected to the servo motor mounting seat 3.9. The servo motor 3.4 and the sensing switch mounting bracket 3.6 are mounted on the servo motor mounting seat 3.9. The motor power shaft female head 3.8 is mounted on the output shaft of the servo motor 3.4, and the power transmission is achieved by engaging with the positioning power shaft male head 2.6. The initial position sensing bolt 3.3 and the sensing bolt mounting ring 3.7 are mounted on the male head 2.6 of the positioning power shaft, and the circular sensing switch 3.5 is used to identify the initial position state of the motor rotation. The rotating power unit 3 is the source of power for the working station of the equipment. The servo motor 3.4 is mounted on the slide cylinder mounting base 3.1, and is connected to the protruding part of the slide cylinder 3.2 by bolts. Through the extension and contraction of the slide cylinder, the slide cylinder mounting base 3.1, the servo motor 3.4, the female head 3.8 of the motor power shaft and the male head 2.6 of the positioning power shaft of the fixture positioning unit 2 are driven to engage and disengage, thereby realizing the power transmission and disengagement functions of the fixture positioning unit 2.

[0023] The structure of the unlocking unit 4 is shown in Figure 5 As shown: it includes components such as a lock tongue bite block 4.1, a cylinder mounting seat 4.2, and a dual-axis cylinder 4.3. The cylinder mounting seat 4.2 is actually fixedly connected to the installation reference plane of the device and remains stationary by default. The dual-axis cylinder 4.3 is installed on the cylinder mounting seat 4.2, and the lock tongue bite block 4.1 is installed on the protruding part of the dual-axis cylinder 4.3. As the cylinder pulls the wedge-shaped positioning lock tongue 2.4 up and down, the opening and locking functions of the tooling positioning mounting seat 2.1 in the rotational motion state are realized. The unlocking unit is installed at the work station to realize the opening and locking functions of the tooling positioning mounting seat 2.1 in the rotational motion state. The cylinder mounting seat 4.2 is actually fixedly connected to the installation reference plane of the device. When the jig positioning unit 2 is rotated to the working station through the cam divider, the double-axis cylinder 4.3 is in an extended state, and the lock tongue bite block 4.1 is installed on the extended part of the double-axis cylinder 4.3. When the divider is rotated to the right position, the lock tongue pulling seat 2.5 just enters the card slot of the lock tongue bite block 4.1. The wedge-shaped positioning lock tongue 2.4 moves downward as the cylinder is pulled downward, realizing the opening and locking functions of the tool positioning mounting seat 2.1 in the rotational motion state.

[0024] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multi-point rotary positioning device with revolution and rotation, characterized in that: It consists of a revolving turntable unit, a fixture positioning unit, a rotating power unit and an unlocking unit. There are 4 groups of fixture positioning units, which are evenly installed on the revolving turntable unit. The rotating power unit is installed on the revolving turntable unit to realize the transmission and separation of power from the fixture positioning unit. The unlocking unit is installed at the working station to realize the opening and locking of the rotating motion state of the fixture positioning unit.

2. The multi-point rotary positioning device of revolution and rotation according to claim 1 is characterized in that: The revolving turntable unit includes a four-station cam divider, a secondary positioning bushing, a revolving turntable, a jig fixed disk and a fixed disk connecting piece, wherein the four-station cam divider realizes uniform speed switching between the four stations, is actually fixedly connected to the installation reference plane of the equipment, and remains stationary by default, the revolving turntable is screwed on the rotating indexing outer ring of the four-station cam divider, and as the cam divider rotates, the jig fixed disk is screwed and fixed to the fixed inner ring of the four-station cam divider through the fixed disk connecting piece, and the secondary positioning bushings are evenly installed on the revolving turntable to realize mechanical correction of the cam divider positioning.

3. The multi-point rotation positioning device of revolution and rotation according to claim 1 is characterized in that: The jig positioning unit comprises a tool positioning mounting seat, a lock tongue mounting seat, a rectangular compression spring, a wedge-shaped positioning lock tongue, a lock tongue pulling seat, a positioning power shaft male head, a bearing lock nut, a bearing limit screw, a rolling bearing, a bearing mounting base and a lock tongue cover plate, wherein the bearing mounting base is screwed and fixed on the revolving turntable, there are two rolling bearings, which are installed at the upper limit shoulder of the positioning power shaft male head in front and back, the rolling bearing and the positioning power shaft male head are regarded as a whole and installed in the positioning slot hole of the bearing mounting base, the bearing lock nut is tightened at the rear end of the positioning power shaft male head, the tool positioning mounting seat is installed at the front end of the positioning power shaft male head, the lock tongue mounting seat is screwed and installed in front of the bearing mounting base, the rectangular compression spring is passed through the wedge-shaped positioning lock tongue shaft and installed together in the lock tongue mounting seat positioning slot, the lock tongue cover plate is installed above the lock tongue mounting seat to limit the movement of the lock tongue, and the lock tongue pulling seat is fixed to the wedge-shaped positioning lock tongue shaft end by bolts.

4. The multi-point rotation positioning device of revolution and rotation according to claim 1 is characterized in that: The rotating unit includes a slide cylinder mounting base, a slide cylinder, an initial position sensing bolt, a servo motor, a circular sensing switch, a sensing switch mounting bracket, a sensing bolt mounting ring, a motor power shaft female head and a servo motor mounting seat, wherein the slide cylinder mounting base is mounted and fixed on the fixture fixing plate, the slide cylinder fixing component is mounted on the slide cylinder mounting base, the slide cylinder sliding component is connected to the servo motor mounting seat, the servo motor and the sensing switch mounting bracket are mounted on the servo motor mounting seat, the motor power shaft female head is mounted on the servo motor output shaft, and power transmission is achieved by engaging with the positioning power shaft male head, the initial position sensing bolt and the sensing bolt mounting ring are mounted on the positioning power shaft male head, and the identification of the motor rotation initial position state is achieved through the circular sensing switch.

5. The multi-point rotation positioning device of revolution and rotation according to claim 1 is characterized in that: The unlocking unit includes a lock tongue bite block, a cylinder mounting seat and a dual-axis cylinder, wherein the cylinder mounting seat is actually fixedly connected to the installation reference plane of the equipment and remains stationary by default, the dual-axis cylinder is installed on the cylinder mounting seat, and the lock tongue bite block is installed on the protruding part of the dual-axis cylinder. As the cylinder pulls the wedge-shaped positioning lock tongue up and down, the opening and locking functions of the tooling positioning mounting seat in a rotational motion state are realized.

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