CN102527835B - Parallel mold change system for multiple sets of molds - Google Patents

Abstract

The invention relates to a multiple-mould changing system in parallel arrangement, which utilizes a single press assorted with multiple moulds, is capable of realizing quick changing of the moulds and reasonable in arrangement, and overcomes defects of large space occupation and long changing time in the prior art adopting the mode that one workstation corresponds to one mould. A stamping mould device comprises a worktable and the moulds fixed on the worktable. A changing mechanism comprises a stamping station and storage stations which are arranged on two sides of the stamping station parallelly, the storage stations are connected with the stamping station through running rails, a preparation station communicated with the stamping station is arranged on each running rail on the same line, and the worktable is arranged on the running rails. The stamping station is combined with the preparation stations, and multiple storage stations can be arranged on the periphery of one stamping station, so that floor area is small and space utilization rate is high. Multiple workpieces can be stamped at the same station so that procedures are reduced, workpiece machining efficiency is increased and workload in carrying the workpieces among the stations is decreased.

Description

Parallel mold change system for multiple sets of molds

technical field

The invention belongs to the field of press mold layout and mold change technical device, especially a single press equipped with multiple molds, which realizes fast mold change without crane hoisting, and has multiple sets of mold parallel mold change system with reasonable layout. .

Background technique

The workpiece of the edge wrapping machine (belonging to the stamping machine) will have more molds to cooperate during processing. Different workpieces also need different molds. Different molds will have their own fixed installation position. Generally, traditional stamping molds are one The station is equipped with a set of moulds. When processing, the mold for the workpiece is selected according to the workpiece. Multiple molds require multiple fixed spaces, which will occupy and increase the space of the factory building, that is, it is necessary to expand the space of the factory building to accommodate Corresponding moulds, if the number of moulds is more, the distance between the moulds will increase accordingly. When the production process is arranged, it needs to be switched continuously. When the moulds are replaced, the tools for handling the moulds (such as driving cranes) need to be considered. Such tools) to complete the previous process (mold) and switch to the next process (mold). In this way, the waiting time in the middle will be prolonged, and the time spent in the production and processing process will be delayed. This is inefficient, and the additional investment of equipment and labor will also increase the production cost. The key is to consider that some workshops cannot be installed with driving cranes at all. The situation of transportation equipment, and the situation of insufficient workshop space.

The body wrapping machine is generally composed of a main engine, a mold, an electric control system, etc., and is mainly responsible for completing the wrapping process of six sets of four-door, front and rear machine covers, and the matching four-door and machine cover molds are relatively large in size. , The weight level is high. During the processing in the workshop, nearly 10 tons of molds are repeatedly lifted, which will have a certain impact on the accuracy of the equipment and molds. If all the molds are arranged in the workshop, a larger workshop space will be required Therefore, there is an urgent need for a mold change platform and a mold change system, that is, a mold change system that forms multiple sets of molds that are combined with each other, the distance between them is shortened, the space is small, the speed of mold change is accelerated, and the precision is high.

The Chinese Patent Office announced a CN2917863Y patent on July 4, 2007, titled: Press workbench mold change guide rail and guide bracket used in conjunction with it, including guide rail body, rolling body, movable plate and at least one set Lifting power device, the rolling body is rotatably installed on the bottom of the guide rail body, each group of lifting power devices is installed on the guide rail body, and the output parts of each group of lifting power devices support the movable plate and drive the movable plate to rise and fall vertically . The guide bracket used in conjunction with the mold changing guide rail of the press workbench is provided with a groove extending axially and used for guiding the mold change guide rail into the press workbench. However, this solution adopts the method of lifting up and down to realize mold change, which is not easy to control for large and heavy molds, and the safety is also poor.

The Chinese Patent Office published a CN101695730A document on April 21, 2010, which is called a fast translational mold change mechanism for multi-station CNC punching machines, including guide rails, servo motors, ball screws and die sets. The output shaft end is connected to the ball screw, on which the die set is assembled, and the die set is placed on the guide rail, the servo motor drives the ball screw to rotate, and the rotation of the ball screw drives the die set to translate on the guide rail. However, when multiple sets of molds are arranged and used, they still occupy a large space, and the moving strokes of the molds to be used are different, which also increases the complexity of the control system.

Contents of the invention

The invention solves the disadvantages in the prior art that one station corresponds to one set of moulds, which takes up a lot of space, takes a long time to change molds, and is easily limited by insufficient space on the site and installation and lifting conditions. It provides a collection type, and multiple sets of molds correspond to one The machine press station (hereinafter referred to as the station) is a multi-set mold side-by-side mold change system with high space utilization rate and high equipment utilization rate.

The invention solves the disadvantages in the prior art that the different molds required by different workpieces are independently dispersed and fixed, occupying a large space and easily causing complicated workpiece processing procedures, and provides a kind of multiple sets of molds corresponding to one station, and the processing of different workpieces is arranged in one Stations, reducing the number of parallel mold change systems in the logistics handling, mold selection and other links.

The present invention also solves the disadvantage that the existing single stamping station is equipped with only one set of molds and cannot be expanded, and provides a parallel exchange of multiple sets of molds that can expand the existing mold system and has relatively low space requirements. Modular system.

The technical scheme adopted by the present invention to solve the above-mentioned technical problems is: a multi-set mold side-by-side mold change system, including a stamping die device, a replacement mechanism and a control system, characterized in that the stamping die device includes a workbench and is fixed on the workbench The replacement mechanism includes a stamping station and a reserve station arranged parallel to both sides of the stamping station. The reserve station and the stamping station are connected by a walking track, and a Unicom stamping station is set on the same row of walking tracks. The workbench is set on the walking track, and the control system includes a general control mechanism and an independent drive mechanism that is set on the workbench and connected with the general control mechanism. A stamping station is used to process the workpiece. Above the stamping station is the slider of the press. The mold at the stamping station is in a cooperative relationship with the slider of the press. There is a positioning device at the stamping station. As long as the mold enters The stamping station corresponds to the center point of the upper press. The reserve station around the stamping station is used to place other molds. The mold required for one kind of workpiece processing is in the stamping station, and the mold required for other workpiece processing is in the At the position of the reserve station, the reserve station and the stamping station are connected by a walking track. When the processed workpiece is changed, the corresponding mold is needed. At this time, the corresponding mold in the reserve station is moved to the At the stamping station, the reserve station is arranged around the stamping station, so that the space around the stamping station can be effectively used, which in turn saves the waste of space generated by each fixed stamping station, and the reserve station The location around the stamping station is also used to make the mold layout distance inside the factory more reasonable, and the distance between the reserve station and the stamping station is very short, and other molds can be replaced quickly when other molds are needed, which is better than that used for transferring workpieces. The time is shorter, and there is no need to carry the workpiece, saving a lot of time. The relationship between the reserve station and the stamping station is set according to the scale of the factory building. It can form 4 reserve stations, 6 reserve stations or 8 reserve stations. The reserve station is set on the walking track, and the reserve station Unicom stamping station, to place the mold to the stamping station, it is necessary to move the mold from the reserve station to the stamping station, the walking track between the reserve station and the stamping station is in a vertical state, after setting the reserve station , the mold at the reserve station can enter the stamping station when it is moved to the reserve station. Compared with 4 reserve stations, 6 reserve stations and 8 reserve stations, the reserve station can enter the stamping station for the mold Provide a stop position when in position, and also move a transition position for other molds. The mold is fixedly installed on the workbench, and the workbench is placed on the walking track. The translation conversion of the mold is realized by the movement and transformation of the workbench position. All The position changes of these worktables are all controlled by the control system. The general control mechanism controls the coordinated operation of the entire mold system, moves the required molds to the stamping station, and the worktables at other reserve stations must move asynchronously. , in order to give way to the moving position or the passage for the workpiece to enter and exit, each independent drive mechanism is controlled by the general control mechanism to achieve movement, and the independent drive mechanism is set on the side of each worktable to drive the work The table moves on the walking track. Considering the running time gap or the safety distance between the workbench and the workbench, or the moving distance, the independent drive mechanism drives the workbench to move at the same speed, so as to avoid the high speed of a certain workbench. Collision with other worktables; and as long as the walking track is expanded, the corresponding auxiliary stations and the moving route of the walking can be set, it can be expanded on the basis of the original mold system, for example, a stamping station can be expanded and increased Two reserve stations, forming a quick-change stamping die system with two sets of dies at the same stamping position; or adding to a quick-change stamping die system with four sets of dies, and occupying a small space, it can be installed in the original factory building The transformation is less limited by the space of the workshop; of course, for the laying of the walking track and the stability and precision of the movement of the workbench, a base can be laid under the walking track.

As a preference, the stamping station is fixed in the middle position, and there are 6 reserve stations, which are located on both sides of the stamping station in parallel, and an auxiliary station is also arranged on the walking track on the same row, and the reserve station is located on the walking track middle position. The stamping station is in the middle, and the reserve station is on both sides. The reserve station is symmetrical to the stamping station, which makes full use of the space around the stamping station. The worktables on the reserve stations on both sides move to the place where the stamping station passes. The distance is shorter than that on one side. There are 6 reserve stations, and 6 sets of molds can be installed. The symmetrical stamping station setting of 6 sets of molds actually only forms three moving distances. The walking track connects the reserve stations and stamping workers. The workbench at any reserve station should be able to move to the stamping station on the walking track. There are three reserve stations on one side of the stamping station, and the reserve station is in the middle of the walking track on one side. The station is on one side of the reserve station, the other reserve station is on the side of the reserve station, and the auxiliary station is on the same side as the reserve station, so that the mold at the end of the walking track will enter the reserve station. position, the mold at the reserve station on the other side can be moved to the auxiliary station, and the mold between the two molds can be moved to the reserve station that is out of the way, so that a moving mold flows out to the mold to be moved. aisle.

As a preference, the length of the walking track on both sides of the stamping station is adapted to the sum of the lengths of the five reserve stations, an auxiliary station is set at the end of the walking track, and the auxiliary stations on the two parallel walking tracks are at the same position. end or opposite end. The stamping station should be connected to the entry and exit passages of the workpiece, so the passage should not be blocked. The auxiliary station is set at the end of the walking track, so that this position is only used when switching, and it will not be occupied in normal times. During conversion, this position can be used as a channel, and the auxiliary station is a transitional position as a short-stay position when the mold moves. The auxiliary stations on both sides are selected according to the space size of the factory building and the layout environment of the control system.

Preferably, the running track is composed of two parallel guide rails, and the lower surface of the workbench is provided with longitudinal wheels corresponding to the running tracks on both sides of the stamping station and transverse wheels corresponding to the horizontal running tracks. The workbench is supported by two guide rails, and the support is relatively stable. The longitudinal wheels and the horizontal wheels correspond to the walking tracks in different directions to realize movement in different directions. It works when moving up, so that the lower surface of the workbench does not need to be equipped with a steering system, and there are corresponding horizontal wheels when transferring from the longitudinal running track to the horizontal running track or from the horizontal running track to the longitudinal running track. Or longitudinal wheel support drive.

Preferably, the height of the running tracks on both sides of the stamping station is equal to the height of the horizontal running tracks, the upper surface of one of the guide rails is flat, and the upper surface of the other guide rail is provided with a concave guide groove. The height of the walking track is equal, and the upper surface of the walking track is on the same plane. It is more convenient to arrange, and the accuracy after arrangement is relatively high. The upper surface of one of the guide rails is provided with a guide groove, which is matched with the longitudinal wheel or the horizontal wheel. Finally, it can play a guiding role. When the workbench moves on the walking track, the moving track can be controlled smoothly without deflection. The concave guide groove is only one of the ways, and other ways can also be used, such as two The opposite inner side or outer side of the guide rail is provided with protrusions or depressions, and the shape of the longitudinal wheel and the transverse wheel is consistent with the guide rail, or the longitudinal wheel and the transverse wheel are grooved and snapped into the upper surface of the guide rail.

As a preference, there are four longitudinal wheels and four transverse wheels on the lower surface of the workbench, and the surfaces of the two longitudinal wheels corresponding to the guide rails with guide grooves are protrusions matched with the grooves, and two of them are matched with the belts. The surface of the transverse wheel corresponding to the guide rail of the guide groove is a protrusion matched with the groove. When the workbench moves on the longitudinal track, only the longitudinal wheels are supported. Similarly, when the workbench moves on the horizontal track, only the horizontal wheels are supported. Therefore, there are four longitudinal wheels and four transverse wheels, and the support is relatively stable. The guide groove on the upper surface of the guide rail matches.

As preferably, the diameter of the transverse wheel is smaller than the diameter of the longitudinal wheel, and the guide rails on both sides of the stamping station are provided with four notches corresponding to the longitudinal wheels at the position of the preliminary station, and a lifting section is arranged in the notch, and the upper surface of the lifting section The shape of the corresponding guide rail is the same, and the lower surface of the lifting section is connected with a lifting mechanism. The diameter of the transverse wheel is smaller than the diameter of the longitudinal wheel, so that when the workbench is placed on the walking track, the workbench on the longitudinal walking track is higher than the workbench on the transverse walking track, so that the work changes from vertical to horizontal or from Transition from horizontal to vertical can be well matched with the walking track without interference. The diameter change is adjusted by the position of the notch. When the workbench enters the longitudinal walking track, the longitudinal wheel enters the notch and Cooperate with the lifting section, the lifting mechanism lifts the lifting section, and when the lifting section rises to the level with the longitudinal walking track, the horizontal wheels leave the horizontal walking track, and the lifting section and the longitudinal walking track It becomes a part of the walking track, and the workbench matches with the walking track; similarly, when changing from vertical movement to horizontal movement, the lifting section gradually descends under the action of the lifting mechanism, and the horizontal wheel and the horizontal wheel The walking track cooperates to complete the turning from vertical to horizontal.

Preferably, the independent drive mechanism includes a drive motor fixed on the side of each workbench and a longitudinal drive rod and a horizontal drive rod fixed on the lower surface of the workbench. The machine and the transmission belt are connected with the transverse drive rod. The independent drive mechanism is used to drive each workbench. The driving motor is decelerated by the reducer and then the power is transmitted to the horizontal drive rod by the transmission belt. The work moves horizontally, and the longitudinal drive rod drives the work to move longitudinally. The transmission ratio of the bevel gear should be related to the diameter ratio of the horizontal wheel and the longitudinal wheel, so that the moving speed of the worktable on the horizontal walking track is the same as that on the longitudinal walking track. equal movement speed.

Preferably, the longitudinal drive rod is connected to the longitudinal wheels arranged on the lower surface of the workbench, and the transverse drive rod is connected to the transverse wheels arranged on the lower surface of the workbench. The longitudinal wheel connected with the longitudinal driving rod is used as the power input part for the longitudinal movement of the worktable, and the horizontal wheel connected with the horizontal driving rod is used as the power input part for the lateral movement of the worktable.

Preferably, the control system includes a positioning travel switch fixed on the ground, and a positioning plate corresponding to the travel switch is arranged on the workbench. The travel switch ensures the accuracy of the moving distance and position of the workbench, ensures the gap between the workbenches, and prevents the collision between the workbenches or not in place, or the movement of the workbench cannot move to the stamping station. The positioning plate is used together, and the positioning plate is a position reference line of the workbench.

The beneficial effects of the present invention are: the stamping station is combined with the reserve station, a plurality of reserve stations are arranged around one stamping station, the occupied site area is small, and the space utilization rate is high, and each reserve station corresponds to a set of stamping stations. Mold, only need to replace the stamping die of the reserve station to the stamping station to process the workpiece, so that various workpieces can be stamped at the same station, which reduces the process arrangement, improves the processing efficiency of the workpiece, and saves the time spent on the workpiece. Handling work between various stations.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a kind of side view of the present invention;

Fig. 3 is a structural representation of a workbench of the present invention;

Fig. 4 is a structural representation of a walking track of the present invention;

Fig. 5 is a partial schematic view of a walking track of the present invention;

Fig. 6 is a schematic diagram of a mold changing process of the present invention;

Fig. 7 is a schematic diagram of a completed state of a mold change of the present invention;

In the figure: 1. The first reserve station, 2. The second reserve station, 3. The third reserve station, 4. The fourth reserve station, 5. The fifth reserve station, 6. The sixth reserve station , 7, stamping station, 8, travel switch, 9, pad, 10, base, 11, walking track, 12, lifting mechanism, 13, workbench, 14, longitudinal drive rod, 15, longitudinal wheel, 16, Horizontal wheel, 17, horizontal driving rod, 18, positioning plate, 19, transmission belt, 20, reducer, 21, driving motor, 22, bevel gear, 23, guide groove, 24, lifting section, 25, gap, 26, Auxiliary station, 27, preliminary station.

Detailed ways

The present invention will be further described below through specific embodiments.

Embodiment: A multi-set mold change system for body hemming machine (see Figure 1, Figure 2), which is integrally arranged on the base 10, including a stamping die device, a replacement mechanism and a control system, and the stamping die device includes a workbench 13 (see accompanying drawing 3) and the mold fixed on the workbench, the lower surface of the workbench is provided with four longitudinal wheels 15 and four transverse wheels 16, the diameter of the transverse wheels is smaller than the diameter of the longitudinal wheels, and the two longitudinal wheels pass through the transverse arrangement The vertical drive rod 14 is connected to the two horizontal wheels through the vertically arranged horizontal drive rod 17, and the longitudinal drive rod and the horizontal drive rod are connected by a pair of meshing bevel gears 22. A drive motor 21 is fixed on the side of the workbench. The motor 21 is connected to the horizontal drive rod through the reducer 20 and the transmission belt 19. The drive motor, the reducer, the transmission belt, the longitudinal drive rod and the horizontal drive rod form the independent drive mechanism of the workbench. Two positioning plates 18 are fixed on the lower surface of the workbench. A number of travel switches 8 are arranged on the ground, and the travel switches correspond to the positioning plate. The replacement mechanism has a stamping station 7 and 6 reserve stations arranged around the stamping station. The first reserve station 1, the second reserve station Position 2 and the third reserve station 3 are on one side of the stamping station, the fourth reserve station 4, the fifth reserve station 5 and the sixth reserve station 6 are on the other side of the stamping station, and the base is arranged with Walking track 11, the workbench is placed on the walking track, the reserve station and the stamping station are connected through the walking track, the length of the walking track on both sides of the stamping station matches the sum of the lengths of the five reserve stations, An auxiliary station 26 is provided at the ends of the two parallel running tracks, and a preliminary station 27 is provided at the middle of the traveling tracks. The preliminary station and the stamping station are on the same line, which is perpendicular to the traveling tracks on both sides. , the walking track is composed of two parallel guide rails (see Figure 4, Figure 5), the height of the walking tracks on both sides of the stamping station is equal to the height of the horizontal walking track, and the upper surface of one of the walking tracks is plane, the upper surface of the other guide rail is provided with a concave guide groove 23, and the surfaces of the two longitudinal wheels corresponding to the guide rail with guide groove are convex parts matching with the groove, and two of them are matched with the guide groove The surface of the horizontal wheel corresponding to the guide rail is a convex part matching the groove. The guide rails on both sides of the stamping station are provided with four notches 25 corresponding to the longitudinal wheels at the position of the preparation station, and a lifting section 24 is arranged in the notch. , the upper surface of the lifting section 24 has the same shape as the corresponding guide rail, the lower surface of the lifting section 24 is connected with a hydraulic lifting mechanism, and the stamping station is provided with a positioning device, the setting position of the positioning device is the same as that of the punch corresponding to the location of the job.

The control system includes a general control mechanism and an independent drive mechanism connected with the general control mechanism. The total control mechanism includes an industrial computer, which is connected to a control device for controlling the lifting mechanism and a drive motor for an independent drive mechanism. The control system also includes an alarm device and Emergency braking mechanism, emergency braking mechanism includes automatic braking controlled by industrial computer and manual braking controlled manually, the control system is connected to each travel switch and positioning mechanism on the base.

When normally placed, the workbenches at the 6 reserve stations are at their respective starting positions, and are distributed on both sides of the stamping station. When the mold processing at a reserve station, such as the mold processing at the third reserve station, the industrial computer control sends a signal to the drive motor, the worktable at the first reserve station moves upward to the auxiliary station, and the second reserve station The workbench of the station crosses the reserve station and enters the original first reserve station, the workbench at the third reserve station goes up at the same time, and the workbench at the third reserve station crosses the original position of the second reserve station Entering the preparation station, the positioning plate and the travel switch function, and the longitudinal wheel of the third reserve station is above the lifting section. When the drive motor is driven, the transverse wheel and the longitudinal wheel are always in a rotating state. The industrial computer After receiving that the third reserve station has entered the predetermined position, a signal is sent to the control device of the lifting mechanism, the lifting section where the third reserve station is located is lowered, the horizontal wheel contacts the horizontal walking track, and then the drive motor continues to work , the workbench at the third reserve station moves to the stamping station, and the positioning mechanism sends a signal to the computer after the workbench at the third reserve station is in place, and the press starts to work (see attached drawing 6 and attached drawing 7); it is necessary to change another When the mold is being processed, it is necessary to reset the respective molds, and then the industrial computer controls to issue instructions, and the corresponding molds are moved to the stamping station.

The above-mentioned embodiment is only a preferred solution of the present invention, and does not limit the present invention in any form, and there are other variations and modifications on the premise of not exceeding the technical solution described in the claims.

Claims (9)

1. mould changing system in parallel arrangement more than a kind, comprise punching die device, more converting mechanism and control system, it is characterized in that punching die device comprises workbench and is fixed on the mould on workbench, more converting mechanism comprises a punching press station and is arranged in the parallel deposit station of punching press station dual-side, between deposit station and punching press station, by the track of walking, be connected, on the walking track of same row, be provided with the preparation station of UNICOM's punching press station, workbench is arranged on walking track, punching press station centerlock, deposit station has 6, both sides in punching press station abreast, on the same walking track listing, be also provided with a secondary station, the centre position of preparation station in this walking track, control system comprises master control mechanism and is arranged on the independent driving mechanism that workbench Shang Bingyu master control mechanism is connected.

2. many mould changing system in parallel arrangements according to claim 1, the length of walking track and the length sum of five deposit stations that it is characterized in that punching press station both sides are suitable, the end position of walking track arranges secondary station, and the secondary station on two parallel walking tracks is in same one end or opposite end.

3. many mould changing system in parallel arrangements according to claim 1 and 2, the track that it is characterized in that walking is comprised of the parallel guide rail of twice, and the lower surface of workbench is provided with longitudinal wheel of walking track and the lateral wheel of corresponding horizontal walking track of corresponding punching press station both sides.

4. many mould changing system in parallel arrangements according to claim 3, the height that it is characterized in that the walking track of punching press station both sides equals the height of horizontal walking track, the upper surface of the wherein guide rail in walking track is plane, and the upper surface of another root guide rail is provided with recessed gathering sill.

5. many mould changing system in parallel arrangements according to claim 4, the longitudinal wheel that it is characterized in that workbench lower surface is four, lateral wheel is four, wherein the surface of two longitudinal wheels corresponding with the guide rail of tape guide groove is the protuberance matching with groove, and wherein the surface of two lateral wheel corresponding with the guide rail of tape guide groove is the protuberance matching with groove.

6. many mould changing system in parallel arrangements according to claim 3, it is characterized in that the diameter of lateral wheel is less than the diameter of longitudinal wheel, the guide rail of punching press station both sides arranges the longitudinally breach of wheel of four correspondences in the position of preparation station, in breach, be provided with lifting section, the upper surface of lifting section is identical with the shape of corresponding guide rail, and the lower surface of lifting section is connected with lifting mechanism.

7. many mould changing system in parallel arrangements according to claim 1 and 2, it is characterized in that independent driving mechanism comprises longitudinal drive rod and the horizontal drive rod that is fixed on the drive motors of each workbench side and is fixed on workbench lower surface, longitudinally drive rod is meshed by bevel gear with horizontal drive rod, and drive motors is connected with horizontal drive rod by reductor and driving-belt.

8. many mould changing system in parallel arrangements according to claim 7, is characterized in that longitudinal drive rod connects the longitudinal wheel that is arranged on workbench lower surface, and laterally drive rod connects the lateral wheel that is arranged on workbench lower surface.

9. many mould changing system in parallel arrangements according to claim 1 and 2, is characterized in that control system comprises the positioning stroke switch that is fixed on ground, is provided with the location-plate corresponding with travel switch on workbench.

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