CN113828728A

CN113828728A - Be applied to blade precision forging automation line's multi-adaptability blade material loading revolving stage

Info

Publication number: CN113828728A
Application number: CN202111218534.8A
Authority: CN
Inventors: 姚宏亮; 陈宪明; 安斯健; 朱明亮; 丁宵月; 赵一冰
Original assignee: Beijing Research Institute of Mechanical and Electrical Technology
Current assignee: Beijing Research Institute of Mechanical and Electrical Technology
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2021-12-24
Anticipated expiration: 2041-10-25
Also published as: CN113828728B

Abstract

The invention discloses a multi-adaptability blade feeding rotary table applied to a blade precision forging automatic production line, which has certain flexibility and accurate positioning, is suitable for the blade precision forging automatic production line with small forged piece batches and various types, has self-sensing capacity and is matched with a robot to finish feeding operation, and simultaneously can improve the number of feeding stations so as to increase the buffer capacity of the feeding rotary table; the device selects a servo indexing table capable of realizing random indexing, designs a multi-adaptive positioning tool, increases the flexibility of the device, reduces the switching time of a product switching tool clamp, meets the requirement of the production on the positioning precision, and ensures the accuracy and the stability of the robot clamping. The device is also provided with a zero clearing proximity switch assembly to avoid the generation of accumulated errors, and is provided with a material-free detection device to enable the device to sense the material existence state of a station.

Description

Be applied to blade precision forging automation line's multi-adaptability blade material loading revolving stage

Technical Field

The invention discloses a multi-adaptability blade feeding rotary table applied to a blade precision forging automatic production line, which requires accurate positioning of the feeding rotary table in automatic production, and requires equipment with relatively small blade production batch and relatively more types to have certain flexibility and multi-adaptability.

Background

The current material loading mode of blade precision forging production line still adopts the material frame to feed at present, through the mode of artifical clamp material loading in the rotary hearth furnace, this kind of mode degree of automation is low, and the beat of material loading and the accuracy of position receive operating personnel's subjective influence great, easily cause the inaccurate product quality that influences in location. In order to solve the problem, based on the requirement of automatic transformation of precision blade forging, a rotary feeding rotary table needs to be arranged on an automatic line, a worker manually feeds materials on the feeding rotary table outside a safety fence of the automatic line, the feeding rotary table rotates to transfer a workpiece to a robot grabbing position in the safety fence, the feeding rotary table is required to be convenient for manual operation and robot grabbing, and enough work positions are required to ensure the continuity and stability of production. Meanwhile, the production of the blades has the characteristics of small batch and multiple types, and certain flexible requirements are met for realizing automatic production, otherwise, when products are switched, replacement and adjustment of tool fixtures and the like occupy a large amount of time, and the production efficiency is influenced.

Disclosure of Invention

The invention relates to a multi-adaptive blade feeding turntable applied to a blade precision forging automatic production line, which is characterized by comprising six parts, namely an indexing table, a servo speed reducing motor drive, a material tray assembly, a zero clearing proximity switch assembly, a material detection assembly and the like; the feeding rotary table has self-sensing capability and is matched with a robot to finish feeding operation, and the buffer capacity of the feeding rotary table is enlarged by increasing the number of feeding stations of the material tray assembly; the indexing table is driven by a servo speed reducing motor to realize the random indexing of the indexing table so as to increase the adaptability of the device; the material tray assembly is of a double-layer material tray structure consisting of an upper material tray assembly and a lower material tray assembly, each layer of material tray assembly is provided with 20T-shaped grooves on a material tray base along the radial direction of a disc, each T-shaped groove is provided with four positioning blocks, the four positioning blocks form a station, namely, each material tray is provided with 20 stations; four positioning blocks are arranged on each T-shaped groove, and each positioning block can be freely adjusted along the radial direction of the T-shaped groove; four positioning blocks are arranged on each T-shaped groove, each positioning block is provided with two positioning references corresponding to four products;

each station can be used for producing 4 workpieces, the positioning tool does not need to be adjusted during product switching, and each workpiece has a corresponding positioning reference; the feeding turntable is designed for avoiding the influence of accumulated errors on positioning precision and is provided with a zero clearing proximity switch assembly; the feeding turntable is designed and provided with a material-free detection assembly for detecting whether a station has materials or not and informing a master control to realize reasonable scheduling of production; the material-free detection transmission assembly of the feeding turntable comprises a material-free detection assembly support, a spherical hinge mounting support and a distance measurement photoelectric sensor, the distance measurement photoelectric sensor is mounted on the spherical hinge mounting support, and the detection position of the distance measurement photoelectric sensor can be adjusted randomly through adjusting the angle of the spherical hinge mounting support so as to detect different products and meet the requirement for detecting products in a diversified manner.

Drawings

FIG. 1 is a general view of a multi-adaptable blade loading turret;

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is a zero clearing proximity switch assembly;

FIG. 4 is a no material detection assembly;

FIG. 5 is an enlarged view of the line P in FIG. 4;

FIG. 6 shows a tray assembly

FIG. 7 is a partially enlarged view of A-A in FIG. 6

FIG. 8 is a partial enlarged view of the positioning block

Detailed Description

Aiming at the characteristics of relatively less batch and relatively more types of precision forging blade production lines, the flexibility of the device is increased as much as possible, so that the switching time of the tool clamp during product switching is reduced as much as possible, the requirement of automatic production on positioning precision is met, and the clamping accuracy and stability of the robot are ensured.

In the figure 1, a general diagram base (2) of the multi-adaptive blade feeding rotary table is fixed on a foundation (1) through a compression screw and a jacking screw, and the level of the whole feeding rotary table can be adjusted through adjusting the compression screw and the jacking screw; the dividing table (4), the zero clearing proximity switch assembly (5) and the material-free detection assembly (9) are arranged on the base (2) through screws; the transitional mounting disc (6) is mounted on the indexing table (4), and the transitional mounting disc (6) is used for expanding the size of the mounting table surface of the indexing table (4). In order to improve the capacity of the feeding platform, the invention adopts a structural form of an upper material disc and a lower material disc, and the feeding disc component (7a) is arranged on the transitional mounting disc (6) through a screw; the lower section of the upper tray support frame (8) is arranged on the transitional mounting tray (6) through screws, and the upper end of the upper tray support frame (8) is used for mounting an upper tray assembly (7 b); the lifting bolt (10) is arranged at the upper end of the upper tray support frame (8) and is used for lifting the whole device. The structure of the lower tray component (7a) is identical to that of the upper tray component (7 b).

The servo speed reducing motor (3) is arranged on the indexing table (4) and is used for driving the indexing table (4), and the indexing table (4) mainly comprises an output flange, a box body, a driving cam, a driven roller shaft and a gear reducer; the servo speed reducing motor (3) is composed of a servo motor and a speed reducer, and the servo motor is controlled by a controller in the electric control cabinet. The controller controls the servo motor through three modes of position, speed and moment, so that the high-precision transmission system is positioned, and the positioning precision of the whole feeding platform can reach plus or minus 15'. Because dividing table (4) is through servo gear motor (3) drive, so can realize carrying out the demand of graduation to arbitrary angle, this has improved the flexibility of material loading revolving stage greatly, can redesign material loading dish subassembly (7b) and lower disc subassembly (7a) when needing, changes the quantity of station and need not to change dividing table hardware. Meanwhile, the grabbing position of the workpiece is arbitrarily adjusted through program control, so that the grabbing posture and the grabbing action of the robot are optimized.

Fig. 2 is an isometric view of fig. 1 to facilitate viewing of the structure of the loading turntable.

The zero clearing proximity switch assembly is shown in fig. 3, and the zero clearing proximity switch assembly (5) is composed of a proximity switch bracket (11), a proximity switch (12) and a proximity sensing piece (13) and is used for realizing zero clearing operation during starting and zero clearing operation during operation of equipment, so that the problem that the robot grabbing operation is unstable due to inaccuracy of a positioning position caused by accumulated errors of the equipment is avoided.

The material-free detection assembly is shown in fig. 4, fig. 5 is an enlarged view of the P direction in fig. 4, the material-free detection transmission assembly (9) consists of a material-free detection assembly support (14), a spherical hinge mounting support (15) and a distance measurement photoelectric sensor (16), the distance measurement photoelectric sensor (16) is mounted on the spherical hinge mounting support (15), and the detection position of the distance measurement photoelectric sensor (16) can be adjusted at will by adjusting the angle of the spherical hinge mounting support (15) to detect different products, so that the requirement of diversified product detection is met.

Fig. 6 shows a tray assembly, which is composed of a lower tray assembly (7a) and an upper tray assembly (7b), the two assemblies are completely the same in structure, and are composed of five parts, namely, a tray base (17), a first positioning block (18), a second positioning block (19), a third positioning block (20), a fourth positioning block (21) and a T-shaped block (22), wherein 20T-shaped grooves (17c) are formed in each tray base (17) along the radial direction of the disc, and correspond to 20 stations on the upper and lower tray assemblies, and 4 positioning blocks are installed on each T-shaped groove, namely, the first positioning block (18), the second positioning block (19), the third positioning block (20) and the fourth positioning block (21), the 4 positioning blocks are fixed by the T-shaped block (22) and screws, and can be freely adjusted along the direction of the T-shaped grooves. FIG. 7 is an enlarged view of a portion A-A of FIG. 6, with a T-block (22) inserted in a T-slot (17 c).

FIG. 8 is an enlarged view of a portion of a positioning block, each positioning block having two positioning references corresponding to two products, respectively, the positioning block (18) having two

positioning references

18a and 18 b; the positioning block (19) is provided with two

positioning references

19a and 19 b; the positioning block (20) is provided with two

positioning references

20a and 20 b; the positioning block (21) has two

positioning references

21a and 21 b. Wherein the positioning block (18) and the positioning block (19) are used in a matched mode, the positioning block (20) and the positioning block (21) are used in a matched mode, a reference 18a of the positioning block (18) and a reference 19a of the positioning block (19) correspond to the same product and are defined as workpieces 1, similarly, a reference 18b of the positioning block (18) and a reference 19b of the positioning block (19) correspond to the workpieces 2, a reference 20a of the positioning block (20) and a reference 21a of the positioning block (21) correspond to the workpieces 3, a reference 20b of the positioning block (20) and a reference 21b of the positioning block (21) correspond to the workpieces 4, therefore, 4 kinds of workpieces can be positioned on each station of the tray assembly, the four positioning blocks can slide along the T-shaped groove (17c) of the equipment, and when the four kinds of workpieces are placed in the positioning tool, interference between each workpiece and an unrelated positioning block is avoided through reasonable optimization of the supporting structures and the supporting positions of the four positioning blocks, meanwhile, the operability of positioning is guaranteed, the workpiece can be accurately positioned only by placing the workpiece in the positioning tool and tightly leaning against the positioning surfaces in two directions during manual feeding, and interference with a robot clamping jaw is avoided. Through the design, the four-axis numerical control machine has multiple adaptability, and the tool does not need to be readjusted when four products are switched to produce. Meanwhile, as the positioning block adopts a replaceable design, the positioning block can be redesigned to adapt to more kinds of workpieces in the future.

The above-mentioned embodiments are only preferred embodiments of the present invention, and all changes made by the claims of the present invention should fall within the scope of the present invention.

Claims

1. A multi-adaptability blade feeding turntable applied to a blade precision forging automatic production line is characterized in that the structure of the turntable comprises six parts, namely an indexing table, a servo speed reducing motor drive part, a material tray assembly, a zero clearing switch assembly, a material detection assembly and the like; the feeding rotary table has self-sensing capability and is matched with a robot to finish feeding operation together, and the buffer capacity of the feeding rotary table is enlarged by increasing the number of feeding stations of the material tray assembly.

2. The multi-adaptability blade feeding turntable applied to the automatic blade precision forging production line as claimed in claim 1, wherein the indexing table is driven by a servo speed reduction motor to realize arbitrary indexing of the indexing table so as to increase the multi-adaptability of the device.

3. The adaptive blade feeding turntable applied to an automatic production line for precision forging of blades as claimed in claim 1, wherein the feeding disc assembly comprises a feeding disc assembly and a discharging disc assembly to form a double-layer feeding disc structure, each layer of feeding disc assembly is provided with 20T-shaped grooves radially arranged on the disc base, and each T-shaped groove is provided with four positioning blocks, and the four positioning blocks form a station, that is, each feeding disc has 20 stations.

4. The adaptive blade feeding turntable applied to an automatic production line for blade precision forging as claimed in claim 3, wherein four positioning blocks are installed on each T-shaped groove, and each positioning block can be freely adjusted along the radial direction of the T-shaped groove.

5. The multi-adaptability blade feeding turntable applied to the automatic blade precision forging production line as claimed in claims 3 and 4, wherein four positioning blocks are installed on each T-shaped groove, and each positioning block has two positioning references corresponding to four products.

6. The multi-adaptive blade loading rotary table applied to the automatic blade precision forging production line as claimed in claims 1 and 3, wherein each station can be used for production of 4 workpieces, product switching does not need to adjust positioning tools, and each workpiece has a corresponding positioning reference.

7. The multi-adaptive blade feeding turntable applied to the automatic blade precision forging production line as claimed in claim 1, wherein the feeding turntable is designed and provided with a zero clearing proximity switch assembly to avoid the accumulated error from affecting the positioning precision.

8. The multi-adaptive blade feeding turntable applied to the automatic production line for precision forging of blades as claimed in claim 1, wherein the feeding turntable is designed and provided with a material-free detection assembly for detecting whether material exists at a station and informing a master controller of realizing reasonable scheduling of production.

9. The multi-adaptive blade feeding turntable applied to the automatic blade precision forging production line as claimed in claim 1, wherein the feeding turntable material-free detection transmission assembly comprises a material-free detection assembly support, a spherical hinge mounting support and a ranging photoelectric sensor, the ranging photoelectric sensor is mounted on the spherical hinge mounting support, and the detection position of the ranging photoelectric sensor can be adjusted arbitrarily by adjusting the angle of the spherical hinge mounting support to detect different products, so as to meet the requirement of diversified product detection.