CN220411947U

CN220411947U - Workpiece conveying device

Info

Publication number: CN220411947U
Application number: CN202321517362.9U
Authority: CN
Inventors: 郭仁勇; 钱胜兵; 鲍忠俊
Original assignee: Umi China Electric Inc
Current assignee: Umi China Electric Inc
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-30
Anticipated expiration: 2033-06-14

Abstract

The utility model provides a workpiece conveying device, which comprises a feeding seat and a feeding table movably arranged on the feeding seat along a feeding direction; a plurality of rotating heads are uniformly distributed on the feeding table along the feeding direction; the rotating heads are rotatably arranged around respective axes, and the axes are parallel. Each rotating head is driven to rotate by a rotating assembly arranged on the feeding table, a driving assembly is linearly arranged on the feeding seat along the feeding direction, and the rotating assembly does not slide and roll on the driving assembly. According to the workpiece conveying device, the multi-station automatic continuous feeding of the switch bottom box is realized through the plurality of rotary heads which are arranged side by side corresponding to the stations of the continuous die, so that the production efficiency is improved. Further, the movement of the feeding table and the rotation actions of the plurality of rotating heads are integrated, so that the actual synchronous action can be realized only by arranging a driving device of the feeding table, and the driving mechanism and the motion control logic of the system are simplified.

Description

Workpiece conveying device

Technical Field

The utility model relates to the technical field of workpiece conveying devices, in particular to a workpiece conveying device.

Background

The metal switch bottom box is typically formed by stamping, applicant provides a metal stamped electrical switch bottom box of model D4 RB. As shown in fig. 1, the side of the switch bottom box is provided with a threading through hole, and the upper edge of the side is provided with an overhanging edge. The above features need to be processed through a stamping process. In view of this, the applicant has filed in 2017 an utility model patent for an automatic feeding rotary punching mechanism for a switch bottom case. This prior patent application publication No. CN206868960U provides a single-station feeding device with two degrees of freedom in the vertical plane and servo-driven rotation. The device has independent servo rotating mechanism, i.e. its position control and rotation control are controlled separately by the controller program.

In order to improve the production efficiency and the utilization rate of stamping equipment, continuous die operation can be used, and a plurality of punching and trimming stations are arranged on the same die to improve the operation efficiency. Based on this, the single-station feeding device of the above-mentioned prior application cannot be used. The continuous die operation is generally used in production of stamping parts conveyed by a material belt, the switch bottom box of the workpiece conveying device is independent in a single piece, and a corresponding conveying device is required to be designed for realizing continuous die production of the switch bottom box, so that feeding and discharging conveying operation of each station is synchronously completed. In order to control the rotation angle of the workpiece, i.e. the switch bottom box, at each station, it is conceivable to provide a servo-rotating device on the conveyor device corresponding to each station. However, the method has the defects that firstly, a controller is required to control the movement of the feeding device and the actions of a plurality of servo rotating devices respectively, and higher requirements are set for the controller; secondly, this requires pre-programming to cause the parts to act in a given timing sequence.

Disclosure of Invention

Aiming at the problem that the existing punching feeding mechanism for the switch bottom box can only finish single-station feeding, the utility model provides a workpiece conveying device capable of realizing multi-station feeding of a progressive die.

The technical scheme of the utility model provides a workpiece conveying device, which comprises a feeding seat and a feeding table movably arranged on the feeding seat along the feeding direction; at least one rotating head is uniformly distributed on the feeding table along the feeding direction, and the rotating head corresponds to a plurality of working stations; the axes of the rotating heads are parallel, and a plurality of rotating heads are arranged in a rotating way around the respective axes.

Preferably, each rotating head is driven to rotate by a transmission system arranged on the feeding table, and a driving assembly is arranged on the feeding seat in a straight line along the feeding direction; when the feeding table moves, the driving assembly drives the transmission system to enable the rotating head to rotate by a preset angle.

Preferably, the drive train comprises at least a connecting handle fixedly connected with the drive train, the connecting handle slides and rotates on the driving assembly around a fixed point, and when the feeding platform moves, the driving assembly drives the connecting handle to enable the drive train to rotate by a preset angle.

Preferably, the drive train comprises at least a rotating assembly which does not roll on the drive assembly in a sliding manner.

Preferably, the rotating assembly is a gear which is arranged in a rotating way, the driving assembly is a rack which is fixedly arranged on the feeding seat, and the rack and the driving assembly are meshed for transmission.

Preferably, the overhanging end of the rotating head is provided with a mechanism for clamping and positioning the switch bottom box or is only provided with a shape matched with a specific position of the switch bottom box, so that the switch bottom box is circumferentially fixed at the end of the rotating head and can rotate with the rotating head by a corresponding angle.

Preferably, an electromagnet is arranged at the overhanging end part of the rotating head and used for adsorbing the switch bottom box.

Preferably, the feed seat has a degree of freedom of movement along an axis.

Preferably, the feeding device further comprises a mounting table, a track is arranged on the mounting table along the axial direction, and the feeding seat is arranged on the track in a controlled movement along the axial direction.

Preferably, the workpiece conveying device is further provided with a turnover mechanism for turning over the switch bottom box; the turnover mechanism is arranged in front of the end part of the first rotating head in the feeding direction, and the feeding area of the turnover mechanism is turned over and then is opposite to the end part of the rotating head.

Preferably, the turnover mechanism is fixedly arranged on the rotating shaft, a gear coaxially arranged on the rotating shaft is meshed with the rack for transmission, and the rack drives the turnover mechanism to rotate.

Preferably, the feeding area is laterally provided with at least one clamping block moving in the plane of the feeding area to laterally press the switch bottom box.

Preferably, an electromagnet of the bottom box of the controlled adsorption switch is arranged at the bottom of the feeding area.

Preferably, the turnover mechanism further comprises a feeding groove, the feeding groove is arranged at a lateral opening of the rack before turnover, and the feeding groove is movably arranged to leave the feeding position after the switch bottom box is fed into the feeding area through the feeding groove so as to block the next switch bottom box from entering the feeding area.

According to the workpiece conveying device, the problem that the single piece of the switch bottom box cannot be produced by using the continuous die is solved through the plurality of rotating heads which are arranged side by side and correspond to the stations of the continuous die, and the multi-station automatic continuous feeding of the switch bottom box is realized, so that the production efficiency is improved, the labor cost is reduced, and the operation safety is ensured. The workpiece conveying device further adopts the technical scheme that the movement of the feeding table and the rotation actions of the rotating heads are integrally arranged and integrally driven, so that the rotating heads can be driven to rotate by the movement of the feeding table while the preset rotation angles of the rotating heads are ensured, and therefore, only the driving device of the feeding table is required to be arranged, and the mechanism and the motion control logic of the system are simplified.

Drawings

FIG. 1 is a schematic diagram of a prior art switch bottom box of the present utility model;

FIG. 2 is a schematic view of the overall structure of a workpiece conveying device according to the present utility model;

FIG. 3 is a schematic view of the structure of a workpiece conveying device at a feed station according to the present utility model;

fig. 4 is a schematic view of a structure of a mounting table of a workpiece conveying device according to the present utility model.

In the drawing the view of the figure,

w is a switch bottom box W2, a continuous die 1 is a workpiece conveying device F, a feeding direction O is a feeding direction, an axis 11 is a feeding seat 12, a feeding table 13 is a rotating head 14 is a transmission line 15 is a mounting table 16, a turnover mechanism 111 is a driving component 131, an electromagnet 141 is a rotating component 142, a connecting handle 151 is a track 161, a rotating shaft 163 is a rack 164, a feeding groove 16W is a feeding area 165 is a clamping block

Detailed Description

The present utility model will be described in detail below with reference to the drawings and the specific embodiments, and in the present specification, the dimensional proportion of the drawings does not represent the actual dimensional proportion, but only represents the relative positional relationship and connection relationship between the components, and the components with the same names or the same reference numerals represent similar or identical structures, and are limited to the schematic purposes.

Fig. 2 is an overall schematic diagram of the present application. A plurality of operation stations are uniformly distributed on the progressive die W2 along the direction of the feed direction F, the switch bottom box W enters each operation station in turn along the direction of the feed direction F to complete a stamping step, and the switch bottom box W may need to rotate a specific angle between each stamping step to align a specific side face with the station to complete the processing of stamping features on a specific face. It will be appreciated that part of the stations may be set to the turnaround position or the two working positions and that the rotation angle of the part of the stations may therefore be zero. A workpiece conveying device of the present utility model is used for continuous feeding between stations of such a progressive die W2.

The workpiece conveying device 1 includes a feed base 11 provided stationary, a feed table 12 provided on the feed base 11 so as to move in a feed direction F, and a plurality of rotary heads 13 provided on the feed table 12 so as to be uniformly distributed in the feed direction F. The rotary heads 13 are generally in one-to-one correspondence with the plurality of stations of the progressive die W2. The plurality of rotary heads 13 are rotatably disposed about their own axes O, and the axes O of the plurality of rotary heads 13 are parallel. The end of the rotary head 13 facing the progressive die W2 is provided with a mechanism for gripping and positioning the switch bottom case W or simply has a shape matching a specific position of the switch bottom case W so that the switch bottom case W is fixed circumferentially at the end of the rotary head 13 and can be rotated by a corresponding angle with the rotary head 13 when transferred onto the rotary head 13. The end of the rotary head 13 facing the progressive die W2 is optionally provided with an electromagnet 131 for attracting the switch bottom case W. The interval between the rotary heads 13 is recorded as a transfer distance, in the operation process, the feeding table 12 receives the switch bottom box W of the previous station from the previous station along the feeding direction F by a unit transfer distance, then advances the switch bottom box W by a unit transfer distance along the feeding direction F to return to the current operation station, and simultaneously or successively rotates a preset angle to enable the switch bottom box W to have a desired orientation at each station, and then the continuous die W2 completes the stamping operation. The mass production process is a simple repetition of the above steps.

The disadvantage of the above solution is that the movement of the feeding table 12 and the rotation of the rotary heads 13 need to be controlled independently, and besides the corresponding arrangement of a plurality of driving devices, the structure is complex, and the control needs to be programmed separately for each movement mechanism, which increases the load of the controller and increases the possibility of system errors. Thus providing an optimized technical scheme. Fig. 3 is a detailed schematic of the scheme. For each rotary head 13, it includes a set of drive trains 14 disposed on the feeding table 12 to rotate the rotary heads 13, the drive trains 14 including at least a rotating assembly 141; the feeding seat 11 is provided with a driving component 111 which is arranged in a straight line along the feeding direction F, and the driving component 111 is meshed with the rotating component 141 for transmission (rolling without sliding). Thus, when the feed table 12 is moved in the feed direction F by a unit transfer distance, the rotating assembly 141 rolls on the driving assembly 111 by the same transfer distance, and each workpiece conveyor 1 can be made to have a rotation angle matching that of its operation by changing or adjusting the diameter of the rotating assembly 141 or the transmission ratio inside the power train 14. In practice, the rotating assembly 141 may be a gear wheel rotatably mounted, the driving assembly 111 may be a rack engaged therewith, and, as shown in fig. 3, may be a connecting handle 142 slidably mounted on the driving assembly 111 about a fixed point connecting the power train 14 with the driving assembly 111.

In the embodiment of fig. 3, the total number of the spin heads 13 is 8, and the rotation angle of each spin head 13 is sequentially set to 135 degrees, 180 degrees, 90 degrees, 180 degrees, 135 degrees, 180 degrees, 0 degrees in this order. The latter two rotating heads 13 do not rotate for taking out the products for temporary placement and placement onto the output product conveyor.

Returning to fig. 2, the workpiece conveying device 1 preferably has a degree of freedom of movement of the axis O, which is achieved by movement of the feed shoe 11 in the direction of the axis O. The workpiece conveying device 1 therefore preferably comprises a rail 151 arranged on the mounting 15 in the direction of the axis O, on which rail 151 the feed carriage 11 is arranged in a controlled movement in the direction of the axis O. The movement of the workpiece transport device 1 is then: firstly, at the current station, the electromagnet 131 is powered off for discharging, then the feeding seat 11 is withdrawn along the axis O to enable the rotary head 13 to move out of the stamping station of the continuous die W2, after the feeding table 12 is retracted by a unit transfer distance along the feeding direction F, the feeding table 12 is advanced along the axis O to enable the rotary head 13 to enter the previous station, and the electromagnet 131 is electrified to absorb the switch bottom box W. The switch bottom box W of the previous station is moved into the current station in the reverse order.

Fig. 4 is a schematic structural view of the tilting mechanism 16. The feeding of the switch bottom box W is generally flat, i.e. the bottom surface is downward, and when the switch bottom box W is at each station on the progressive die W2, a certain side is upward to match the action of the top-down stamping die. For this purpose, the workpiece conveying device 1 is further provided with a turnover mechanism 16 for turning the open and close bottom case W by 90 degrees. The turnover mechanism 16 is arranged in front of the end part of the first rotary head 13 in the direction of the feeding direction F, a feeding area 16W of the turnover mechanism 16 is opposite to the end part of the rotary head 13 after being turned over, and an electromagnet is arranged at the bottom of the feeding area 16W to controllably adsorb the switch bottom box W. The turnover mechanism 16 is fixedly arranged on a rotating shaft 161, the rotating shaft 161 is coaxially arranged and is in meshed transmission with a rack 163, the turnover mechanism 16 is driven to rotate by the rack 163, and the rack 163 can be usually driven by an air cylinder. At least one gripping block 165 moving in the plane of the feed zone 16W is optionally provided laterally to laterally press the switch bottom box W against its position on the feed zone 16W.

The turnover mechanism 16 further comprises a feeding groove 164, before the rack 163 turns over, the feeding groove 164 is movably arranged at the side opening of the rack 163, and in order to realize intermittent feeding of a single switch bottom box W on the feeding area 16W, after the switch bottom box W is fed into the feeding area 16W through the feeding groove 164, the feeding groove 164 is far away from the feeding position so as to block the next switch bottom box W from entering the feeding area 16W. After the feeding area 16W is turned over and reset, the feeding groove 164 returns to the original position, and the next feeding is continuously completed.

The stamping process beat of the switch bottom box W after the workpiece conveying device 1 is adopted reaches 9000 beats per shift, 3 workers in 3 processes of cutting ears, trimming and punching can be saved, the efficiency improvement and the reduction of labor cost are realized, and the operation safety problem is solved. The workpiece conveying device 1 saves 3 logistics processes and saves butterfly frames and turnover space; the workpiece conveying device 1 saves the taking and discharging of the D4RB products for 6 times, and solves the problem that sharp corners of the products scratch a galvanized layer of the products; the workpiece conveying device 1 enables the switch bottom box product to realize half flow production, saves production management cost, and realizes one flow production of the D4RB product by automatic screw locking, automatic labeling and online production.

The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and various modifications and improvements made by those skilled in the art to which the utility model pertains will fall within the scope of the utility model as defined by the appended claims without departing from the spirit of the utility model.

Claims

1. A workpiece conveying device, characterized by comprising a feeding seat (11) and a feeding table (12) movably arranged on the feeding seat (11) along a feeding direction (F); a plurality of rotating heads (13) are uniformly distributed on the feeding table (12) along the feeding direction (F), and the rotating heads (13) correspond to a plurality of working stations; the axes (O) of the rotating heads (13) are parallel, wherein a plurality of rotating heads (13) are rotatably arranged around the respective axes (O),

each rotating head (13) is driven to rotate by a transmission system (14) arranged on the feeding table (12), and a driving assembly (111) is arranged on the feeding seat (11) along the feeding direction (F) in a straight line; when the feeding table (12) moves, the driving assembly (111) drives the transmission system (14) to rotate each rotating head (13) by a preset angle.

2. A workpiece conveying device as claimed in claim 1, characterized in that the drive train (14) comprises at least a coupling lever (142) fixedly connected to the drive train (14), the coupling lever (142) being slidingly rotatable on the drive assembly (111) about a fixed point, the drive assembly (111) driving the coupling lever (142) to rotate the drive train (14) by a predetermined angle when the feed table (12) is moved.

3. A workpiece conveying device as claimed in claim 1, characterized in that the drive train (14) comprises at least a rotating assembly (141), the rotating assembly (141) rolling on the drive assembly (111) without slipping.

4. A workpiece conveying device according to claim 3, characterized in that the rotating assembly (141) is a gear wheel arranged in a rotating manner, and the driving assembly (111) is a rack fixed on the feeding seat (11) and meshed with the rack.

5. A workpiece conveying device as claimed in claim 1, characterized in that the overhanging end of the swivel head (13) is provided with means for gripping and positioning the switch capsule (W) or simply has a shape matching the specific position of the switch capsule (W) so that the switch capsule (W) is fixed circumferentially at the end of the swivel head (13) and can rotate with the swivel head (13) by a corresponding angle.

6. A workpiece transport device as claimed in claim 5, characterised in that the overhanging end of the swivel head (13) is provided with an electromagnet (131) for attracting the switch bottom box (W).

7. A workpiece conveying device as claimed in any one of claims 1-6, characterised in that it further comprises a mounting table (15), on which mounting table (15) a track (151) is arranged in the direction of the axis (O), and on which track (151) the feed seat (11) is arranged for controlled movement in the direction of the axis (O).

8. A workpiece conveying device according to any of claims 1-6, characterized in that the workpiece conveying device (1) is further provided with a tilting mechanism (16) for tilting the bottom box (W) of the switch; the turnover mechanism (16) is arranged in front of the end part of the first rotary head (13) in the feeding direction (F), and the feeding area (16W) of the turnover mechanism (16) is turned over and then faces the end part of the rotary head (13).

9. A workpiece conveying device as claimed in claim 8, characterized in that the tilting mechanism (16) further comprises a feed chute (164), the feed chute (164) being arranged at a lateral opening of the rack (163) before tilting, the feed chute (164) being arranged so as to be movable away from the feed position after the switch bottom box (W) has been fed into the feed zone (16W) via the feed chute (164) in order to block the next switch bottom box (W) from entering the feed zone (16W).