Automatic conveying device for piston workpiece and implementation method thereof

Abstract

The automatic conveying device for piston workpieces relates to the technical field of piston processing equipment, and particularly belongs to an automatic conveying device for piston workpieces and its implementation method. A support frame fixed on the ground and a material disk arranged at the top of the support frame. An indexing cam divider is installed on the support frame, and the output shaft of the reduction motor of the indexing cam divider is connected to the material disk. On the outer circumferential direction of the material disk, a corresponding number of piston workpieces are arranged according to the number of equal divisions of the indexing cam divider, and other positions of the material disk are correspondingly and equidistantly placed with the piston workpieces on the outer circumference. Positioning blocks are arranged along the outer circumferential direction of the material disk below the material disk, a material detection switch for sensing the piston workpieces on the outer circumferential direction above the material disk, and an alarm lamp. A position sensing switch, a material sensing switch, an alarm lamp, and the frequency converter of the indexing cam divider are respectively connected to the truss PLC control system. It has the positive effect of improving production efficiency and automation degree.

Description

Technical Field

[0001] The present invention relates to the technical field of piston processing equipment, and in particular belongs to an automatic conveying device for piston workpieces and its implementation method. Background Art

[0002] With the popularization of industrial automation and the increase in labor costs, automatic trusses are more and more widely used in industrial production. There are various automatic truss feeding methods, such as ring chain type, plate type, track type, tray type, etc., but they generally have the disadvantages of large occupied space, inconvenient feeding, high labor intensity, complex mechanical transmission mechanism, high failure rate, and large energy consumption. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic conveying device for piston workpieces and its implementation method, so as to achieve the purpose of reducing equipment failures and improving production efficiency.

[0004] The automatic conveying device for piston workpieces provided by the present invention is characterized in that it includes a support frame fixed on the ground and a material disk arranged at the top of the support frame. An equal division divider is installed on the support frame. The output shaft of the reduction motor of the equal division divider is connected to the material disk and drives it to rotate. A positioning tooling is arranged above the material disk. Through the positioning tooling, on the outer circumferential direction of the material disk, a number of piston workpieces corresponding to the number of equal divisions of the equal division divider are arranged, and other positions of the material disk are correspondingly and equidistantly arranged in sequence with the piston workpieces on the outer circumference. Among them, a positioning block is arranged along the outer circumferential direction of the material disk below the material disk, and the positioning block corresponds to the positioning tooling up and down; the support frame extends outwards to form an installation bracket, and a position induction switch for sensing the positioning block below the material disk, a material detection switch for sensing the piston workpieces on the outer circumferential direction above the material disk, and an alarm lamp are installed on the installation bracket. The position induction switch, the material induction switch, the alarm lamp, and the frequency converter of the equal division divider are respectively connected to the truss PLC control system.

[0005] Further, the position induction switch and the material detection switch are respectively arranged at both ends of the material disk. Among them, the material detection switch includes a feeding early warning switch and a feeding alarm switch, and the feeding early warning switch and the feeding alarm switch are arranged at intervals.

[0006] Further, the above-mentioned equal division divider adopts an eight-equal division divider, and the position induction switch includes a main position induction switch, and the main position induction switch and the feeding alarm switch are on the same diameter of the material disk.

[0007] Further, the equal division divider is a sixteen-equal division divider. The position sensing switch includes a main position sensing switch and an auxiliary position sensing switch. The main position sensing switch and the auxiliary position sensing switch are on the same radius of the material disk and are arranged front and back along the radial direction of the material disk. Among them, the positioning blocks adjacent to each other below the material disk are arranged front and back.

[0008] Further, the positioning tooling are a plurality of positioning blocks arranged on the material disk, and the piston workpiece is sleeved on the positioning blocks.

[0009] The implementation method of the automatic conveying device for piston workpieces provided by the present invention is characterized by including the following steps:

[0010] Step a: In the initial state, the feeding device automatically rotates under the action of the deceleration motor of the equal division divider, and manual primary feeding is performed on the feeding device.

[0011] Step b: When the feeding alarm switch and the position sensing switch simultaneously generate sensing signals, the truss PLC control system controls the feeding device to stop rotating, and the PLC controls the manipulator to execute the material grasping program, and controls the manipulator to sequentially grasp the piston workpieces on the radius of the material disk corresponding to the feeding alarm switch. After the material taking is completed, when the feeding alarm switch cannot detect the material, the truss PLC control system controls the frequency converter of the equal division divider to make the material disk rotate clockwise by one division. Repeat the above steps, and through the feeding device monitoring unit in the truss PLC control system, the material situation on the material disk is monitored in real time, and the event processing mechanism is triggered.

[0012] Further, in step a, when the feeding device is fed for the first time, manual feeding is performed in a counterclockwise direction in sequence from the radial direction of the material disk corresponding to the feeding warning switch.

[0013] Further, in step b, the feeding device monitoring unit further includes the following event processing mechanism:

[0014] When the truss PLC control system controls the manipulator to execute the material taking program, the truss PLC control system controls the alarm lamp to emit a green signal indicating normal operation;

[0015] When the feeding warning switch cannot detect the material, the truss PLC control system controls the alarm lamp to emit a yellow warning signal to prompt the operator to add materials;

[0016] When the feeding warning switch and the feeding alarm switch cannot detect materials at the same time, the truss PLC control system controls the alarm light to emit a yellow warning signal, and the feeding device continues to operate. When the feeding device operates for more than the set time, the truss PLC control system controls the alarm light to emit a red warning signal, and the feeding device stops running. At this time, the truss PLC control system outputs a low-level signal to the manipulator, and the manipulator cannot receive the material taking instruction.

[0017] The piston workpiece automatic conveying device and its implementation method provided by the present invention, through the feeding device of the present invention, have high positioning accuracy of the material path, and effectively reduce the storage space, making the layout of the production line more compact. Due to the simple mechanical transmission, small load, and small power selection of the motor, it can reduce energy consumption and equipment failures, and has the positive effects of improving production efficiency and automation degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawing part discloses specific embodiments of the present invention, wherein,

[0019] Figure 1 is the front view of the feeding device of the present invention;

[0020] Figure 2 is the left view of the feeding device of the present invention;

[0021] Figure 3 is the top view of the feeding device of the present invention in the state of a 16-equal division embodiment;

[0022] Figure 4 is the top view of the feeding device of the present invention in the state of an 8-equal division embodiment;

[0023] Figure 5 is the front view of the application state of the present invention;

[0024] Figure 6 is the top view of the application state of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Such as Figure 1-6As shown in the figure, the automatic conveying device for piston workpieces provided by the present invention includes a support frame 1 fixed on the ground and a material disk 2 arranged at the top of the support frame. An indexing cam divider is installed on the support frame. The output shaft of the reduction motor 3 of the indexing cam divider is connected to the material disk and drives the material disk at the top of the support frame to rotate. In the embodiment of this device, different indexing cam dividers can be selected for use according to the actual working conditions, such as an eight-equal-part indexing cam divider and a sixteen-equal-part indexing cam divider. Above the material disk, there is a positioning tooling 5 for the piston workpiece 4. The positioning tooling can be a fixed block fixed on the material disk. The piston workpiece is fixed on the material disk by sleeving on the fixed block. Through the positioning tooling, the same number of piston workpieces corresponding to the number of equal parts of the indexing cam divider are arranged in the circumferential direction of the outer circumference of the material disk. At the same time, the piston workpieces are placed at equal intervals in other positions corresponding to the outer circumference of the material disk. In the Figure 3 top view of the feeding device of the present invention in the state of the sixteen-equal-part embodiment as shown in the figure, 16 piston workpieces are fixed on the outer circumference of the material disk. After the piston workpieces in other positions corresponding to the outer circumference of the material disk are placed at equal intervals, 3 piston workpieces and 2 piston workpieces are respectively placed in the adjacent radial directions of the material disk. Similarly, in the Figure 4 top view of the feeding device of the present invention in the state of the eight-equal-part embodiment as shown in the figure, 8 piston workpieces are fixed on the outer circumference of the material disk. After the piston workpieces in other positions corresponding to the outer circumference of the material disk are placed at equal intervals, 3 piston workpieces are respectively placed in the radial direction of the material disk. Among them, a positioning block 6 is also arranged along the circumferential direction of the outer circumference of the material disk below the material disk, and the positioning block is arranged corresponding to the positioning tooling up and down.

[0026] In addition, a plurality of mounting brackets extend outward from the support frame. A position sensor for sensing the positioning block below the material disk, a material detection switch for sensing the piston workpiece in the circumferential direction above the material disk, and an alarm lamp 7 for working state display are installed on the mounting brackets. The alarm lamp is a three-color indicator lamp. The above-mentioned position sensor, material detection switch, alarm lamp, and the frequency converter of the indexing cam divider are respectively connected to the truss PLC control system. Specifically, the position sensor and the material detection switch are respectively arranged at both ends of the material disk. Among them, the material detection switch includes a feeding early warning switch SQ2 and a feeding alarm switch SQ1, and the feeding early warning switch and the feeding alarm switch are arranged at intervals. In different embodiments, the position sensor is set differently according to the different number of equal parts of the indexing cam divider. For example, in the Figure 4In the top view of the feeding device of the present invention in the eight-equal-part embodiment shown, the position sensing switch only includes a main position sensing switch SQ3, and the main position sensing switch and the feeding alarm switch are on the same diameter of the material disk. The center points of the positioning blocks arranged along the outer circumference of the material disk below the material disk are on the same circle. The main position sensing switch is used to sense the position states of the 8 positioning blocks corresponding to three piston workpieces placed in the radial direction of the material disk. As shown in Figure 3 In the top view of the feeding device of the present invention in the sixteen-equal-part embodiment shown, the position sensing switch includes a main position sensing switch and an auxiliary position sensing switch SQ4. The main position sensing switch and the auxiliary position sensing switch are on the same radius of the material disk and are arranged front and back along the radial direction of the material disk. In particular, the center points of the positioning blocks arranged along the outer circumference of the material disk below the material disk are not on the same circle, but only concentric circles, that is, the positioning blocks adjacent to each other below the material disk are arranged front and back. At this time, the main position sensing switch is used to sense the position states of the 8 positioning blocks corresponding to three piston workpieces placed in the radial direction of the material disk; the auxiliary position sensing switch is used to sense the position states of the 8 positioning blocks corresponding to two piston workpieces placed in the radial direction of the material disk.

[0027] Next, the present invention will be further described with two embodiments of the present invention. The indexing cam mechanism uses a cam indexing mechanism of RUIIODT-16-270-2R-S3-VW-X; the position sensing switch and the material detection switch use a proximity switch of LJ12A3-4-Z / EX.

[0028] In the embodiment of the piston workpiece automatic conveying device of the present invention using an eight-equal-part indexing cam mechanism, the specific implementation process is as follows:

[0029] Step a: In the initial state of the feeding device, it automatically rotates under the action of the deceleration motor of the eight-equal-part indexing cam mechanism, and manual feeding is performed on the feeding device for the first time; when the feeding device is fed for the first time, manual feeding is performed in turn in the counterclockwise direction from the radius direction of the material disk corresponding to the feeding warning switch.

[0030] Step b: When the feeding alarm switch and the main position induction switch generate induction signals simultaneously, the truss PLC control system controls the feeding device to stop rotating. The PLC controls the manipulator 8 to execute the program of picking 3 workpieces, and controls the manipulator to sequentially grasp three piston workpieces on the material disk radius corresponding to the feeding alarm switch. After the material picking is completed, the feeding alarm switch cannot detect the material. The truss PLC control system controls the frequency converter of the octal divider to rotate the material disk clockwise by one division. Repeat the above steps, and through the feeding device monitoring unit in the truss PLC control system, monitor the material situation on the material disk in real time and trigger the event handling mechanism. Specifically, the feeding device monitoring unit further includes the following event handling mechanisms:

[0031] When the truss PLC control system controls the manipulator to execute the material picking program, the truss PLC control system controls the alarm lamp to emit a green signal indicating normal operation;

[0032] When the feeding warning switch cannot detect the material, the truss PLC control system controls the alarm lamp to emit a yellow warning signal, prompting the operator to add materials;

[0033] When both the feeding warning switch and the feeding alarm switch cannot detect the material, the truss PLC control system controls the alarm lamp to emit a yellow warning signal, and the feeding device continues to operate. When the feeding device operates for more than the set time (set according to the working conditions), the truss PLC control system controls the alarm lamp to emit a red warning signal, and the feeding device stops running. At this time, the truss PLC control system outputs a low-level signal to the manipulator, and the manipulator cannot receive the material picking instruction.

[0034] In the embodiment of the piston workpiece automatic conveying device of the present invention that uses a sixteen-division divider, the specific implementation process is as follows:

[0035] Step a: In the initial state, the feeding device automatically rotates under the action of the reduction motor of the sixteen-division divider, and the operator performs the initial feeding on the feeding device. When the feeding device is initially fed, the operator sequentially feeds the materials manually in the counterclockwise direction from the radius direction of the material disk corresponding to the feeding warning switch.

[0036] Step b: When the feeding alarm switch and the main position induction switch generate induction signals simultaneously, the truss PLC control system controls the feeding device to stop rotating. The PLC controls the manipulator to execute the program of picking 3 workpieces. The manipulator is controlled to sequentially pick up three piston workpieces on the material disk radius corresponding to the feeding alarm switch. After the picking is completed, the feeding alarm switch cannot detect the material. The truss PLC control system controls the frequency converter of the 16-equal division divider to make the material disk rotate clockwise by one division; when the feeding alarm switch and the auxiliary position induction switch generate induction signals simultaneously, the truss PLC control system controls the feeding device to stop rotating. The PLC controls the manipulator to execute the program of picking 2 workpieces. The manipulator is controlled to sequentially pick up two piston workpieces on the material disk radius corresponding to the feeding alarm switch. After the picking is completed, the feeding alarm switch cannot detect the material. The truss PLC control system controls the frequency converter of the 16-equal division divider to make the material disk rotate clockwise by one division. Repeat the above steps, and through the feeding device monitoring unit in the truss PLC control system, the material situation on the material disk is monitored in real time, and the event processing mechanism is triggered. Specifically, the feeding device monitoring unit further includes the following event processing mechanisms:

[0037] When the truss PLC control system controls the manipulator to execute the program of picking materials, the truss PLC control system controls the alarm light to emit a green signal indicating normal operation;

[0038] When the feeding warning switch cannot detect the material, the truss PLC control system controls the alarm light to emit a yellow warning signal, prompting the operator to add materials;

[0039] When both the feeding warning switch and the feeding alarm switch cannot detect the material, the truss PLC control system controls the alarm light to emit a yellow warning signal, and the feeding device continues to operate. When the feeding device operates for more than the set time (set according to the working conditions), the truss PLC control system controls the alarm light to emit a red warning signal, and the feeding device stops operating. At this time, the truss PLC control system outputs a low-level signal to the manipulator, and the manipulator cannot receive the picking instruction.

[0040] In a specific embodiment, when the feeding warning switch cannot detect the material on the material disk, the truss PLC control system will control the alarm light to emit a material requirement alarm after 3 seconds, informing the operator to feed materials in time. To improve work efficiency and equipment utilization rate, when the operator places materials, all products are placed in the running direction, and the material interval is avoided as much as possible to prevent the truss / manipulator from running empty.

Claims

1. A method for implementing an automatic conveying device for piston workpieces, the method comprising an automatic conveying device for piston workpieces, characterized in that, The device includes a support frame (1) fixed on the ground and a material disk (2) arranged at the top of the support frame. An equal division divider is installed on the support frame. The output shaft of the reduction motor (3) of the equal division divider is connected to the material disk. A positioning tooling (5) is arranged above the material disk. Through the positioning tooling, on the outer circumferential direction of the material disk, a number of piston workpieces (4) corresponding to the number of equal divisions of the equal division divider are arranged, and the other positions of the material disk are correspondingly and equidistantly placed with the piston workpieces on the outer circumference. Among them, a positioning block (6) is arranged along the outer circumferential direction of the material disk below the material disk, and the positioning block corresponds to the positioning tooling up and down; the support frame extends outwards to form a mounting bracket, and a position induction switch for sensing the positioning block below the material disk, a material detection switch for sensing the piston workpieces on the outer circumferential direction above the material disk, and an alarm lamp (7) are installed on the mounting bracket. The position induction switch, the material detection switch, the alarm lamp, and the frequency converter of the equal division divider are respectively connected to the truss PLC control system; the position induction switch and the material detection switch are respectively arranged at both ends of the material disk. Among them, the material detection switch includes a feeding early warning switch (SQ2) and a feeding alarm switch (SQ1), and the feeding early warning switch and the feeding alarm switch are arranged at intervals; the positioning tooling is a plurality of positioning blocks arranged on the material disk, and the piston workpiece is sleeved on the positioning block; The method includes the following steps: Step a: In the initial state of the feeding device, it automatically rotates under the action of the reduction motor of the equal division divider, and manual primary feeding is carried out on the feeding device; Step b: When the feeding alarm switch and the position induction switch simultaneously generate induction signals, the truss PLC control system controls the feeding device to stop rotating. The PLC controls the manipulator (8) to execute the material grasping program, and controls the manipulator to sequentially grasp the piston workpieces on the radius of the material disk corresponding to the feeding alarm switch. After the material taking is completed, the feeding alarm switch cannot detect the material. The truss PLC control system controls the frequency converter of the equal division divider to make the material disk rotate clockwise by one division. Repeat the above steps, and through the feeding device monitoring unit in the truss PLC control system, monitor the material situation on the material disk in real time and trigger the event processing mechanism; When the truss PLC control system controls the manipulator to execute the material taking program, the truss PLC control system controls the alarm lamp to emit a green signal indicating normal operation; When the feeding early warning switch cannot detect the material, the truss PLC control system controls the alarm lamp to emit a yellow early warning signal, prompting the operator to add materials; When the feeding early warning switch and the feeding alarm switch cannot detect the material at the same time, the truss PLC control system controls the alarm lamp to emit a yellow early warning signal, and the feeding device continues to operate. When the feeding device operates for more than the set time, the truss PLC control system controls the alarm lamp to emit a red early warning signal, and the feeding device stops operating. At this time, the truss PLC control system outputs a low-level signal to the manipulator, and the manipulator cannot receive the material taking instruction.

2. The method for implementing an automatic conveying device for piston workpieces according to claim 1, further characterized in that, The above equal division divider uses an eight-equal division divider. The position induction switch includes a main position induction switch (SQ3), and the main position induction switch and the feeding alarm switch are on the same diameter of the material disk.

3. The method for implementing an automatic conveying device for piston workpieces according to claim 1, wherein the equal division divider is a sixteen-equal division divider, and the position induction switch includes a main position induction switch and an auxiliary position induction switch (SQ4). The main position induction switch and the auxiliary position induction switch are on the same radius of the material disk and are arranged front and back along the radial direction of the material disk. Among them, The positioning blocks arranged adjacent to each other under the material disk are arranged front and back.

4. The method for implementing an automatic conveying device for piston workpieces according to claim 1, further characterized in that, In step a, when the feeding device feeds materials for the first time, manual feeding is carried out in turn in the counterclockwise direction along the radial direction of the material disk corresponding to the feeding warning switch.

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