JPH08150525A - Method of assembling cylinder head assembly and assembling device - Google Patents

Abstract

PURPOSE: To easily assemble different kinds of cylinder head assemblies, in accordance with small lot multi-production by reading a basic processing program including data stored therein, and by controlling a process of carrying out operation suitably for a kind of cylinder head assemblies to be processed. CONSTITUTION: Data for several kinds of cylinder heads, that is, data relating to the presences of operations of devices for every kinds of codes of each kind or movements, cycle numbers of operations and the like are stored in a form of a table, in a storage device 1B in a central control device. 1, and data for a kind to be assembled among these data is transferred by means of a personal computer to controllers for the devices 3 to 7. Further, the central control device 1 is connected to a computer in a designing division or a production planning division so as to receive new data relating to new kinds or new production planning, and stores the data in the storage device 1B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention according to the present application relates to an internal combustion engine, for example, an internal combustion engine (simply called an engine) used in a very many types of motorcycles or small planing boats (simply called a motorcycle). The present invention relates to an assembling method and an assembling apparatus for automatically assembling a cylinder head assembly (which means a cylinder head body into which a valve, a spring, etc. are incorporated) using a single assembly line.

[0002]

2. Description of the Related Art In recent years, with the increasing international competitiveness of automobiles, labor saving (rationalization) of production has been promoted more than ever. As part of this, automation is being performed using the assembly line even when assembling the engine cylinder head assembly.

Generally, each model is provided with a dedicated assembly line for automation.

However, in the case of motorcycles, the number of vehicle models is very large, and therefore the number of engine models is also very large. Specifically, one motorcycle manufacturer produces 30 to 100 models. Since there are several types and there is a tendency for multi-model small-quantity production, if a dedicated assembly line is provided, there is a peculiarity that production costs will rise rather due to expansion of space and capital investment.

For example, when the model is different, the components such as valves and springs are different and the so-called "OHC" and "DOHC" are different in type, and the "2 valve" and "4 valve" types are also different. Due to the difference, the required number of valves, springs, etc. also differs, and the mounting position of these on the cylinder head also differs. Therefore, if a plurality of types of cylinder heads having different configurations (models) are provided with dedicated assembly lines for automation, a dedicated assembly device and a dedicated assembly jig such as an assembly pallet, and further A program for a dedicated control device (a program for assembly operation control) is required, which necessitates space and equipment investment.

Further, there are cases where it is necessary to assemble a small number of cylinder head assemblies of a certain model (for example, a model of which the number of sales is small) or a plurality of models of cylinder head assemblies of which the number of sales is small in succession. As a related technique, there is JP-A-62-157741.

[0007]

[Problems to be Solved by the Invention]
Due to low production efficiency and rising labor costs, production costs will rise and it will not be possible to cope with temporary increases in demand. Also,
It is not possible to establish a network that aims to unify product (new product) and production information on-line with the design department or production planning department, and rationalize the entire factory.

On the other hand, if a dedicated assembly line is provided for manufacturing, the production cost is higher than that of the above "manual assembly" from the viewpoint of capital investment.

The invention according to the present application has been made in view of the above-mentioned present situation, and it is possible to assemble a variety of different models corresponding to a variety of small-quantity production and to automate the cylinder head assembly as much as possible. It is an object of the present invention to provide an assembling method and an assembling apparatus.

[0010]

According to a first aspect of the present invention, there is provided a cylinder head assembly assembling method, wherein a data group peculiar to a model to be produced in accordance with a production plan is given to a controller of each device, and the number of assembled units is produced. Central control unit for managing, cylinder head mounting station for mounting cylinder head body on assembly pallet,
A plurality of devices for assembling each part to the cylinder head body, and the cylinder head mounted on the assembly pallet in the assembly process, which is arranged so as to be able to continuously convey between these devices, is received from the device of the previous process and the next process is performed. And a transport means for transporting the assembled cylinder head (referred to as a cylinder head assembly) to the cylinder head removing station located in the vicinity of the cylinder head mounting station. A method of assembling a cylinder head assembly, comprising a controller for controlling each, and assembling each part to a cylinder head body, wherein the central control device performs predetermined operations according to each model to be assembled. Data group (data or its data and parameters Group) is stored for each model, and the controller of each device stores the basic processing program of the operation of each device, and during the assembly work, the central controller controls the controller of each device. The data group is transferred, and the controller of each device incorporates this data group into the basic processing program stored in itself and controls each device to perform the operation suitable for the model to be processed. It is characterized by

In the cylinder head assembly assembling method according to the second aspect of the present invention, the central control for transferring the data group peculiar to the model to be produced according to the production plan to the controller of each device and managing the production such as the number of assembled units. The device, a cylinder head mounting station that mounts the cylinder head body on the assembly pallet, a valve seal press-fitting device that presses a valve seal (also called a stem seal) into the loaded cylinder head, and a cylinder head body that has been loaded. A valve insertion device that inserts a valve, a spring seat insertion device that inserts a spring seat into the valve stem of the loaded cylinder head, a spring insertion device that inserts a spring into the valve stem of the loaded cylinder head, and Cylinder head The cotter mounting device that attaches a cotter to the valve stem end and the cylinder head mounted on the assembly pallet that is installed in each device above in the assembly process are received from the previous process and transported to the next process, and are assembled as needed. A means for returning the completed cylinder head to a cylinder head removing station arranged near the cylinder head mounting station,
A method for assembling a cylinder head assembly, in which each part is assembled to a cylinder head body by using a device having a controller for controlling each device, wherein the central control device relates to each device to be assembled Stores a data group necessary for performing a predetermined operation by the number of each model, the controller of each device stores a basic processing program of the operation in each device, and at the time of assembly work, the central control device, The data group of the model to be processed is transferred to the controller of each device, and the controller of each device incorporates this data group into the basic processing program stored in itself, and matches the model of each device to process. It is characterized in that it is configured to control to operate.

In the method of assembling the cylinder head assembly according to claim 1 or 2, the data group is transferred.
When the assembly pallet is loaded into each device, the model of the cylinder head attached to the assembly pallet can be identified and configured to be performed for each device, which is effective when processing multiple models in a mixed flow state. It becomes a composition.

In the method of assembling the cylinder head assembly according to claim 1 or 2, the data group is transferred.
When the assembly pallet is loaded into the first one of the devices, if the model of the cylinder head attached to the assembly pallet is identified and all the devices are processed, multiple models are processed in a mixed flow state. It is possible to achieve an effective configuration when doing so and to speed up the transfer processing of the data group.

A cylinder head assembly assembling method according to a fifth aspect of the present invention comprises the following series of steps (a) to (h).

(A). If a model name (a concept including a model code) to be assembled is input to the central control unit, the central control unit stores a necessary data group peculiar to the model corresponding to each device. It is taken out from the device and transferred to the controller of each device, and the controller of each device fetches the data into the basic processing program and goes into the ready (standby) state, and (b). In addition, the identification mark for identifying the model is attached to the identification display means provided on the assembly pallet that is dimensionally unified and circulates in the assembly line, and the cylinder head body is attached to this assembly pallet to complete the installation. When a signal to that effect is input, (c) .Check whether the flag for accepting the assembly pallet is formed on the controller of the valve seal press-fitting device in the next process. If it is formed, carry out the above assembly pallet to the valve seal press-fitting device side, and (d). Check if the model indicated by the identification code on the assembly seal pallet by the valve seal press-fitting device is the same as the model entered above. After checking whether or not the valve seal of the corresponding model prepared based on the predetermined data of the previously transferred data group is operated at the position unique to the model by the operation matching the model with the seal press-fitting rod. When the press-fitting work is completed, the controller of the valve insertion device in the next step checks whether or not a flag for accepting the assembly pallet is formed. To the valve insertion device side,
(e). Prepared based on the predetermined data of the previously transferred data group after checking whether the model indicated by the identification symbol of the assembly pallet is the same as the input model on the valve insertion device. The stem part of the valve of the applicable model was inserted into each valve hole at the position peculiar to the model by the valve insertion means by the operation matching the model, and when the insertion work was completed, the spring seat insertion device for the next process Check if the assembly pallet receivable flag is formed on the controller, and if it is formed, carry out the assembly pallet to the spring seat insertion device side, and (f). After checking whether or not the model represented by the identification symbol is different from the model entered above, a predetermined data of the previously transferred data group is checked. The spun rig seat of the corresponding model prepared based on the model is sequentially inserted into each valve stem outer peripheral part at the position peculiar to the model by the operation matching the model by the spring seat gripping arm, and when the insertion work is completed, Check whether or not the assembly pallet acceptable flag is formed in the controller of the spring insertion device in the next process, and if it is formed, carry out the assembly pallet to the spring insertion device side, and (g). Check whether the model indicated by the identification symbol on the assembly pallet is the same as the model entered above, and then set the spring of the corresponding model prepared based on the predetermined data in the previously transferred data group. The spring gripping arm makes it possible to move the valve stem around the valve stem at the position unique to the model by the operation that matches the model. After the next insertion, when the insertion work is completed, the controller of the cotter mounting device in the next step checks whether a flag that can accept the assembly pallet is formed. (H) Check whether the model indicated by the identification symbol on the assembly pallet is the same as the entered model with the cotter mounting device, and then based on the data of the previously transferred data group. The cotter and retainer of the applicable model prepared by the above are sequentially attached to each valve stem end at the position peculiar to the model by the cotter mounting arm by the operation matching the model, and when the installation work is completed, the assembled cylinder is completed. Reinstall the head assembly at the position near the cylinder head mounting station where the cylinder head body is fixed. Back through the over down side conveyance means.

In the method of assembling the cylinder head assembly, when each device carries out the assembly pallet, it sends a signal to the device on the next process side to carry out the assembly pallet, and the device on the next process side installs the assembly pallet. If it is configured to send a signal to that effect to the device that carried it out when it is received, the subsequent assembly pallets will be linked together even if the smooth transfer of the assembly pallets between the devices is impaired. There is no such thing.

Further, in the method of assembling the cylinder head assembly, the parts to be assembled in each device are supplied on the serving pallet in a state of being arranged in accordance with the arrangement in the cylinder head to be assembled,
When a part that cannot be assembled occurs, return the part that cannot be assembled to its original position on the serving pallet, stop the assembly pallet before it is carried out to the equipment side in the next process, and then mount the assembly pallet in the vicinity thereof. If it is configured to supply unusable parts placed on the serving pallet, even if unassembleable parts occur, the operator can easily visually check the unassembleable position from the side of the assembly line, etc. By manually assembling the non-assembling parts to a predetermined part, it becomes possible to recover quickly and easily.

The cylinder head assembly assembling apparatus according to the invention of claim 8 includes the following (a) to (i).
It is characterized by comprising a series of devices.

(A). For each model to be assembled, a data group required for each device to perform a predetermined operation is stored in the storage means in the number of each model, and described in (b) below in the assembly process. A central control unit equipped with input means for transmitting the above data group to the controller of each device of (1) and inputting a data group required for assembling the cylinder head when a new model is created, (b). A controller provided in the device, which takes in a data group from the central control device into a basic processing program stored in its own storage means and causes the device to perform an operation suitable for the model, (c). Dimensionally unified regardless of the model of the cylinder head, it circulates in the assembly line with the cylinder head attached, and it has a readable and rewritable identification that stores the identification symbol that identifies the model. An assembly pallet equipped with separate display means, and (d) an assembly that is attached to each device described in (e) to (i) above, and conveys from the device side of the previous process to the device side of the next process during assembly work. (E). Assembling side conveying means is equipped with a reading / writing means for reading the identification symbol of the above identification indicating means at the receiving portion of this device of the assembling side conveying means, and a valve is provided on the outer peripheral portion of the valve hole of the cylinder head on the assembly pallet A valve seal press-fitting device equipped with a seal press-fitting rod for press-fitting a seal, and (f) a read / write means for reading the identification symbol of the identification display means at the receiving portion of this device of the assembling side conveying means, and assembling. A valve insertion device having a valve insertion means for gripping the valve stem portion and inserting the valve stem portion into each valve hole of the cylinder head main body on the pallet, and (g). And a spring seat inserting device having a spring seat gripping arm for inserting a spring seat into the outer peripheral portion of each valve stem of the cylinder head on the assembly pallet. (H). A read / write means for reading the identification symbol of the identification display means is provided at the receiving part of this device of the assembling side conveying means, and a spring is inserted at the outer peripheral portion of each valve stem of the cylinder head on the assembling pallet. A spring insertion device having a spring gripping arm, and (i) a read / write means for reading the identification symbol of the identification display means at the receiving portion of the assembly side conveying means, and a cylinder on the assembly pallet. A cotter mounting device with a cotter mounting arm that mounts a cotter on each valve stem end of the head.

In the cylinder head assembly assembling apparatus according to the eighth aspect, the cylinder heads which are arranged facing each of the assembling side conveying means vertically or horizontally and are fixed, and the cylinder heads are fixed to an assembling pallet. If a return side transport means for returning to the vicinity of the cylinder head mounting station is provided, a single worker can fix the cylinder head to the assembly pallet and remove the completed cylinder head assembly from the assembly pallet. It is possible to streamline production.

In the cylinder head assembly assembling apparatus according to claim 8 or 9, the assembling-side conveying means or the return-side conveying means is connected to each apparatus by a conveyor arranged independently of each other. When formed, each device can be easily added or replaced as a unit without extending or modifying the conveying means even when adding or replacing the device.

Further, in the cylinder head assembly assembling apparatus according to claim 8, at least one of the valve seal press-fitting apparatus, the valve inserting apparatus, the spring seat inserting apparatus, the spring inserting apparatus, and the cotter attaching apparatus is installed. Equipped with tilting means for tilting the cylinder head so that the insertion direction becomes vertical when inserting the component to be worn, and this tilting means can change the tilt angle according to each model according to the instruction from the controller. With this configuration, even if cylinder heads of different models are conveyed, they can be easily attached by inserting all the parts to be attached in the vertical direction.

[0023]

Therefore, the present claims 1, 2, 5 and 8
According to the cylinder head assembly assembling method or device according to the described invention, the controller of each device has the basic processing program common to each model, and even if the model to be assembled is changed, the data peculiar to that model is changed. Since only the group needs to be transferred from the central control device side to the controller of each device, it corresponds to one basic processing program required for each processing operation (assembling operation) for each device and a model that can be assembled into the central control device. Prepare a data group. Therefore, even if the number of models is very large, the amount of information to be stored and the amount of information to be transferred are extremely small for the central control device and each device as compared with the conventional method.
As a result, even when changing the model, it is possible to easily deal with it by simply entering the name of the model to be assembled into the central control unit, and only the data group of that model needs to be transferred. It will be possible to instantly respond to model changes.

In the method according to the fifth aspect or the apparatus according to the eighth aspect, since the cylinder heads of the respective models are fixed and conveyed on an assembly pallet having a uniform dimension,
Even if the shape or size is changed for different models, the reference position can be accurately unified during the work, so that the positioning becomes easy and the positioning work can be simplified. Further, in each assembling process, if the identification display means is provided and the model of the cylinder head on the assembling pallet is confirmed, there is no fear of attaching parts of different models. Further, when the assembled cylinder head assembly is sent back to the position where the cylinder head body is fixed or a position in the vicinity of the cylinder head assembly via the return side transport means to the cylinder head assembling station, the cylinder head for the assembly pallet is formed. It is possible for a single operator to perform the mounting work of the above and the removal of the assembled cylinder head from the assembly pallet. Also, since the assembly pallets are shared, the number of assembly pallets can be reduced as much as possible, the assembly pallets and space can be effectively used, and a plurality of assembly pallets for each model are prepared. The required space and cost can be reduced compared to the case.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cylinder head assembly assembling apparatus according to an embodiment of the present invention will be described below. FIG. 1 is an overall configuration diagram (block diagram) showing the configuration of control relations and the like of an assembly device for a cylinder head assembly, and FIG. 2 is an overall layout diagram showing the overall planar arrangement of the assembly device shown in FIG.

In FIG. 1 or FIG. 2, 1 is a central control unit composed of a personal computer 1A and a main sequencer 1N, 2 is a cylinder head mounting station, 3 is a valve seal press-fitting device for press-fitting a valve seal, and 4 is a valve insertion. Device, 5 is a spring seat insertion device, 6 is a spring insertion device, 7 is a cotter mounting device,
10 and 11 are conveying means arranged in a two-tiered structure.
Is a conveying means on the assembly side formed by a chain conveyor, 11
Is a return-side transfer means formed by a chain conveyor partially provided with a lifting device, and 30 is an assembly pallet.

The storage device 1B of the central control unit 1 includes:
A data group for each model of the cylinder head, that is, a data group regarding presence / absence of each operation in each device, an operation amount, the number of times of operation, etc. is formed in a table for each model code of each model, as partially shown in FIG. The data group of the model to be assembled out of these data groups is transferred from the personal computer 1A to the controllers 3A, 4A, 5A, 6A, 7A of the respective devices to be described later as needed. . The central control unit 1 is connected to a computer of a design department or a production planning department (not shown) online or via a recording medium such as a floppy disk to receive a data group regarding a new model or data (information) regarding the production plan. , And is configured to be stored in the storage device 1B. That is, in this embodiment, the data group of the new model is supplied from the design department in the online (or floppy) form, and the data regarding the production plan is supplied from the production planning department in the online (or floppy) form. It is configured. The central control unit 1 also includes a display unit 1C for displaying the model being processed and a model to be scheduled next, a printer 1D for printing them, and controllers 3A, 4A, 5A, 6A for the respective units. 7A directly controls the assembly pallet 30 and the main sequencer 1N controls the operation of the cylinder head attachment station 2.

Each of the cylinder head attachment station 2, valve seal press-fitting device 3, valve insertion device 4, spring seat insertion device 5, spring insertion device 6, and cotter attachment device 7 has a controller for controlling the respective devices. 3A, 4A, 5A, 6A, 7A
Is provided. This controller 3A, 4A, 5
In this embodiment, A, 6A, and 7A are so-called "sequencers" for controlling the entire apparatus and each robot in each apparatus (a robot in a broad sense, a mounting mechanism similar to a three-axis robot, etc.). The controller 3A, 4A, 5A, 6A, 7A is formed by each control panel for controlling the operation of the main sequencer 1N, as shown in FIG. It is connected to the central control unit 1 online so that a data group of each model required for assembly can be obtained from the central control unit 1. Then, the storage devices 3a, 4 of the controllers 3A, 4A, 5A, 6A, 7A of the respective devices
a, 5a, 6a, 7a, a basic processing program for causing each device to perform a predetermined operation (see FIG. 4 showing a part of the basic processing program of the sheet press-fitting device; “PLC” in FIG. The part to which the unique data shown in FIG. 3 necessary for assembling the model is applied, and represents a data group supplied from the central control unit 1) is stored. Upon receipt, the model of the cylinder head mounted on the assembly pallet was confirmed, and a program was sent to the controller of the device on the previous process side to notify that it was received, and the processing result of that process and the controller of the device on the next process side when sending it out. It has a program such as a program for transmitting a message, which is necessary for each device or for checking. In addition, the control panel of each robot has a control program for controlling the operation of each robot, and is desired according to the control program according to an instruction from each controller 3A, 4A, 5A, 6A, 7A of the apparatus to which the robot belongs. Is configured to operate.

Further, each of the above-mentioned devices 2 for assembling, etc.
3, 4, 5, 6, 7 and 7 include chains including drive roller conveyors that are assembly side conveying means for receiving the assembly pallet 30 (see FIG. 5) on which the cylinder head is mounted from the previous process side and sending it to the next process side. Conveyor (assembling side transport means 10
Of the identification display device (identification display means) 2 provided on the assembly pallet 30 at the receiving portion of each of the conveyors.
A reading / writing device (reading / writing means) 20 for reading and writing the contents of 1 (see FIG. 5), and a writing device (writing means) for writing processing completion (correction processing completion) data at the sending end. 22 are arranged respectively.

The identification display device 21 and the reading / writing device 20 or the writing device 22 are of a proximity type (non-contact type), and are close to the identification display device provided on the assembly pallet 30. By reading the information, in this embodiment, information such as the model of the cylinder head to be assembled, the lot number, and the presence or absence of the completion of the work in the previous process, and the presence or absence of the completion of the work performed by the device are read. It is configured to write information.

Then, as shown in FIG. 2 or FIGS. 7 and 8, the cylinder head mounting station 2 is instructed by the main sequencer 1N (see FIG. 1) which controls the station 2. The identification display device 21 of the assembly pallet 30 is provided with a writing device 22 (see FIG. 1) for writing the model of the cylinder head to be fixed (or fixed).

Further, the cylinder head mounting station 2 is provided with a mounting work line 2A composed of a driving roller conveyor for a worker to mount the cylinder head on an assembly pallet. The mounting work line 2A is adjacent to the mounting work line 2A. An empty assembly pallet is supplied from the assembly pallet storage rack 2B arranged in this manner. That is, when a signal indicating that the previous mounting work has been completed (a signal from the mounting completion switch) is received corresponding to the number of assembly lots of a specific model input to the central control unit 1, the assembly pallet storage rack 2B receives the signal. It is configured to sequentially supply empty pallets.

Rack for assembling pallet storage 2B
As shown in the upper two stages in FIG. 8, drive chain conveyors are arranged in upper and lower four stages, and elevators 2g arranged at both ends supply or withdraw empty pallets to any stage. Is configured.
At the time of this payout, the model and lot number of the cylinder head are written by a writing device 22 (not shown) (see FIG. 1). Further, when the mounting work of the cylinder head to the assembly pallet is completed, a mounting completion switch (not shown) is provided for outputting a signal to that effect to the controller 3A and carrying it to the next process.

By the way, the above-mentioned assembly pallet 30 is
As shown in FIG. 5, a cylinder head of the same size is used that is capable of mounting a plurality of types of cylinder heads. That is, as shown in FIG. 5, the base 30A
The outer dimensions of the cylinder head C are unified, and the cylinder head C (see the chain double-dashed line) is located at a predetermined size from the reference position of the base 30A (6 notches 30p in this embodiment).
Positioning pin (knock pin) for positioning at 0A
30B is erected. Therefore, this positioning pin 3
When the cylinder head of the specific model is positioned by 0B, the predetermined position of the cylinder head (for example, the position of each valve hole) can be accurately specified from the cutout portion 30p (or the specific end face of the base). . Since the positioning pin 30B is arranged at a position matching the bolt hole of the cylinder head C, it can be attached to and detached from the base 30A, and the position of the positioning pin 30B can be changed depending on the model. Is configured. Further, in this embodiment, the positioning pin 30B is color-coded according to the model so that the operator can instantly visually recognize which model.

Further, in the center of the base 30A, in consideration of insertion of a valve from the bottom side, an opening 3 for exposing the inside of the cylinder head to the bottom side of the assembly pallet.
0a is formed. Further, at both ends of the base 30A in the longitudinal direction, fixing fittings 30b for fixing the cylinder head C to the base 30A in the above-described positioned state are provided. The fixing fittings 30b are shown in FIG. As shown in the figure, the fixing members 30d at both ends of the fixing bar 30c that is detachably attached to the base 30A are configured to be locked. Therefore, the fixing member 30 of the fixing bar 30c
When d is inserted into the insertion hole 30e of the fixing bracket 30b,
Locking claw 30 swingably provided on the fixture 30b
f meshes with the rack forming portion of the fixing member 30d,
As shown in FIG. 5, the cylinder head C can be fixed. And when removing, the fixing bracket 30b
When the unlocking rod 30g of is pulled upward, the fixing member 3
The locking claw 30f that meshed with the rack forming portion of 0d
The lock is released so that the fixed bar 30c can be pulled out upward.

As shown in FIG. 5, the above-mentioned identification display device 21 is arranged at one end (the leading end in the carrying direction) of the base 30A so as to face forward. Also, FIG.
In the figure, 30h is a fixing hole for fixing when the assembly pallet 30 is suspended.

Then, as shown in FIGS. 2 and 7, the base end of the assembling side conveying means 10 is disposed so as to be orthogonal to the drive chain conveyor 2f at the lower stage of the attachment work line 2A or the assembly pallet storage rack 2B. There is. The base end portion (right end portion in FIG. 2) of the assembling-side transporting means 10 is
From the mounting work line 2A, a swivel type drive roller conveyor 2b that takes in the assembly pallet 30 with the cylinder head swiveled 90 degrees, and the assembly pallet 30 and the cylinder head removing station 2D, which are located downstream of the swivel drive roller conveyor 2b The drive roller conveyor 2c that conveys the conveyed empty assembly pallet 30 and the assembly pallet 30 (the cylinder pallet with the cylinder head attached to the valve seal press-fitting device 3 side, which is located on the downstream side of the drive roller conveyor 2c and is the first assembly process. Drive chain conveyor 2d for transporting 30)
And the assembly pallet 30 is transported to the downstream side. Further, a lift-up type drive chain conveyor 2f is arranged on the drive roller conveyor 2c so as to be orthogonal to the conveying direction, and the conveyed empty assembly pallet 30 is carried into the assembly pallet storage rack 2B. It is configured to be able to. Further, the assembling side transfer means 10
The cylinder head removing station 2D is formed at the base end (right end in FIGS. 2 and 7) of the cylinder head removing station 2D. The cylinder head removing station 2D is provided with a lifter at a lower portion of the cylinder head assembly (completely assembled cylinder head). ) Is received from the return side transport means 11 described below, and is lifted to the same height as the assembly side transport means 10. Then, in this state, when the operator removes the cylinder head and then the removal completion switch (not shown) is turned on, the empty assembly pallet 30 is moved to the drive roller conveyor 2
It is configured to be carried into the assembly pallet storage rack 2B via b and 2c and the drive chain conveyor 2f.

The drive roller conveyors 2b and 2c are also provided.
Further, below the drive chain conveyor 2d, a drive roller conveyor 2h, which constitutes a part of the return side transfer means 11 for returning the assembly pallet 30 on which the cylinder head assembly is mounted to the cylinder head removing station 2D, 2j, 2k (these drive roller conveyors are hidden under the drive roller conveyors 2b, 2c and the drive chain conveyor 2d; the reference numerals are given in parentheses in FIG. 7). Then, at the downstream (next process side) end of the drive chain conveyor 2d, the read / write for confirming the model of the cylinder head to be sent to the next process side and stating that it has been sent A device 20 is provided.
Each reading / writing device 20 and writing device 22 including this reading / writing device 20 (FIG. 1 or FIG. 9, 12, 18, 20)
Is configured so that when the assembly pallet 30 is stopped during reading and writing, the assembly pallet 30 is projected laterally on the convey surface of the conveyor, and when the read and write operations are completed, the work is retracted and retracted laterally from the convey surface of the conveyor. There is. 2 and 7, W represents an operator.

In the cylinder head mounting station 2 having the above structure, a predetermined cylinder head is mounted on an empty assembly pallet supplied from the assembly pallet storage rack 2B, and a mounting completion switch (not shown) is turned on. Is fed to the driving roller conveyor 2b (see the chain double-dashed line in FIGS. 2 and 7) which is linear to the mounting work line 2A by the driving roller conveyor which constitutes the mounting work line 2A. At this time, the next empty assembly pallet is supplied from the assembly pallet storage rack 2B. Then, when confirming that the assembly pallet 30 (see FIG. 5) has been completely fed onto the drive roller conveyor 2b by a limit switch or the like, the drive roller conveyor 2b turns 90 degrees on the same plane,
It becomes linear with respect to the drive roller conveyor 2c shown by the solid line in FIGS. 2 and 7, and is supplied to the valve seal press-fitting device 3 side on the downstream side by this drive roller conveyor 2c and the drive chain conveyor 2d that follows it.

Also, when the assembly pallet on which the cylinder head after completion of assembly is placed is returned to the cylinder head removing station 2D side by the return side transport means 11, it is lifted up by the lifter as described above. At this position, when the worker removes the cylinder head from the assembly pallet and turns on a removal completion switch (not shown), the empty assembly pallet 30 is passed through the drive roller conveyors 2b and 2c and the drive chain conveyor 2f. Rack for assembling pallet storage 2
Bring to B and store.

Further, in the valve seal press-fitting device 3 shown in FIG. 2, FIG. 9 and FIG.
Drive chain conveyor 3a forming a part of the drive chain conveyor 3a and a drive chain conveyor 3b forming a part of the return side transport means 11 below the drive chain conveyor 3a (hidden below the drive chain conveyor 3a; parenthesized in FIG. 9). The reference number) is provided. Then, the drive chain conveyor 3a is tilted at an angle corresponding to the model of the drive chain conveyor 3a in a direction orthogonal to the longitudinal direction of the conveyor (see arrow P in FIG. 10) about the lower pivot axis O (see FIG. 10). This is a so-called "tilt type" chain conveyor that is configured as possible. On the upper surface of this conveyor 3b, a clamp metal fitting 3e (see FIG. 9) for clamping the assembly pallet on the conveyor surface when tilting is installed. Further, in this valve seal press-fitting device 3, a reading / writing device (not shown) is arranged near the downstream end (the end of the assembly pallet 30) where the assembly pallet 30 is located in FIG. A writing device 22 is provided at the downstream end (carry-out end) of the drive chain conveyor 3a.

The valve seal press-fitting device 3 has 3
A shaft type robot 3R is provided, and as shown in FIG. 9 and FIG. 10, it is freely movable in the plane from above the conveyor 3a to the valve seal supply portion 3c in which seals are arranged and can be vertically moved up and down. It has become. Then, as shown in FIG. 10, the operating arm of the robot 3R is provided with a cylindrical seal press-fitting rod 3d for sandwiching a seal (valve stem seal).

Further, six vibrating part feeders 3B are arranged in front of the seal supply portion 3c (upper side in FIG. 9) to supply the seals in line, and the seal supply portions are arranged in a row. Supply to 3c. FIG.
At 0, reference numeral "3d '" indicates a spare seal press-fit rod for clamping different types of seals.

The valve seal press-fitting device 3 is
The assembly pallet 30 carried in by the drive chain conveyor 3a is clamped and fixed by the clamping metal fittings 3e at the central portion, and at this position, the reading / writing device identifies the assembly pallet identification display device 21 (FIG. 5). See) to check the model. Then, as shown in FIGS. 10 and 11, the upper portion is sequentially tilted to the left and right at an angle suitable for the model, and the left and right valve holes for intake and exhaust of the cylinder head are respectively vertical, The seal is press-fitted from above by the seal press-fitting rod 3d of the robot 3R. And
The result of this work is read by the reading / writing device on the assembly pallet 3
0 is written in the identification display device 21. When the work is completed, the drive chain conveyor 3a conveys the work to the downstream end where the writing device 22 is located. If the work is completed without delay, the preparation for receiving the valve insertion device 4 described below is completed. After confirming that the valve is inserted, it is conveyed to the valve insertion device 4 (see FIG. 4). On the other hand, if there is some incomplete work, it will stop at this position (correction station),
A display to that effect is displayed on a display device (not shown) and an alarm is issued. When the operator manually performs the correction work and operates the correction completion switch, the writing device 22 writes on the identification display device 21 that the work in this step is completed, and conveys it to the valve insertion device 4 located downstream. To be done.

Further, the valve insertion device 4 includes a drive chain conveyor 4a which constitutes a part of the assembling side conveying means 10, as shown in FIG. 2 or FIGS.
A drive chain conveyor 4b (which is hidden below the drive chain conveyor 4a and which is hidden below the drive chain conveyor 4a, which is a part of the return-side conveying means 11; and is shown in parentheses in FIG. 12 and denoted by reference numerals) is disposed below the drive chain conveyor 4b. .

Next, adjacent to the drive chain conveyor 4a, there is provided a dual-balance-type turning robot 4A for holding the assembly pallet at both ends and turning the robot.
On the opposite side of the drive chain conveyor 4a across A, a reversing device 4B for vertically reversing the assembly pallet with the cylinder head fixed is arranged. ), The serving pallet 4C is located corresponding to the position where the) is assembled. In FIG. 12, this serving pallet 4C is transported to the assembly position 4g by the transporting device 4D for delivering serving pallets arranged in a cross pattern, and when the assembly is properly completed, the distribution pallet is formed in the direction indicated by the arrow X. Is transported around to the original supply position 4d. On the other hand, if there is even one assembly failure, the serving pallet 4C is configured to be transported forward of the correction station 4e as indicated by an arrow Y. ing. By the way, a valve insertion robot 4E for inserting the stem portion of the valve into the cylinder head on the reversed assembly pallet is arranged beside the assembly position 4g and the reversing device 4B. The valve insertion robot 4E is a triaxial robot, and has a grip portion (valve insertion means) for suspending an umbrella-shaped portion of a valve (not shown) below a work arm that can be moved and moved up and down in a plane. Then, as shown in FIG.
The valve V is hung from the serving pallet 4C on the assembly position 4g (see FIG. 12) and the stem portion of the valve V is inserted into the valve hole h of the cylinder head CH on the reversing device 4B in the reversing state. Has been done. Then, if the insertion operation is defective, the valve is returned to the original position of the serving pallet 4C.

As shown in FIGS. 12 and 13,
A serving device 4F for serving the valve V on the serving pallet 4C is disposed on the opposite side of the reversing device 4B with the transport device 4D for serving the serving pallet in between. Further, a three-dimensional storage 4G for storing a plurality of the distribution pallets 4C is arranged in a box on the side of the anti-transport device 4D of the distribution device 4F.
And a self-propelled lifting device 4h that takes out a desired box from the three-dimensional warehouse 4f.

Further, at the downstream end (left end in FIG. 12) of the valve insertion device 4, a correction reversing device 4H for reversing the assembly pallet is arranged at the correction station 4e of the transfer device 4D to insert the valve. In the case of a defect, the reversing device 4H is turned over by turning on a manual switch (not shown) so that the operator can turn on the valve on the serving pallet 4C conveyed to the front (upper side in FIG. 12). It is configured to be inserted into a valve hole that was gripped and inserted incorrectly. In this case, the operator is the serving pallet 4
Only by visually observing the position of the remaining valve on C, the defective insertion portion can be grasped, and therefore the processing can be carried out quickly. In other words, since the valves are held (placed) on the serving pallet 4C in accordance with the valve arrangement state of the cylinder head, visually observing the positions of the valves remaining on the serving pallet 4C makes it easy to identify defective insertion points. It is designed to be understood.

Further, in FIG. 12 of this valve insertion device 4, the downstream end of the assembly pallet 30 (the assembly pallet 3
A reading / writing device (not shown) is provided in the vicinity of the end (0), and a writing device 22 is provided at the downstream end (carry-out end) of the drive chain conveyor 4a. The writing device 22 and the reading / writing device project laterally from the conveyor surface of the conveyor when the assembly pallet 30 stops during reading and writing, and project laterally from the conveyor surface when the reading and writing operations are completed. It is configured to retreat and retract.

In the present embodiment, the valve insertion device 4 is divided into an exhaust device and an intake device, that is, an exhaust valve insertion device, as shown in FIG. 2, in view of the processing time with other devices. 4'and a valve insertion device 4 "for intake are respectively provided, but basically only one is required.

The valve inserting device 4 is mounted on the assembly pallet 30 carried by the drive chain conveyor 4a.
Is stopped at the central portion, and at this position, the reading / writing device confirms the model from the identification display device 21 (see FIG. 5) of the assembly pallet. Then, the revolving robot 4A grips the assembly pallet 30 and conveys it to a predetermined position of the reversing device 4B, and in this reversing device 4B, the cylinder head on the assembly pallet is vertically about 150 degrees (for exhaust, 21).
Rotate 0 degrees) and bottom of cylinder head (inside cylinder)
Is substantially above, that is, in a state where the intake valve holes of the cylinder head are vertical, as shown in FIG. 14, the valve insertion robot 4E (see FIG. 12) is provided with an umbrella-shaped portion of the valve on the grip portion. Grasp and insert the valve into each valve hole from above in order. When these operations are completed, the reversing device 4B returns the assembly pallet to the original state (the state where the upper surface of the cylinder head faces upward), and the turning robot 4A returns the original position on the drive chain conveyor 4a. At this position, the above work results can be read and
The writing device writes on the identification display device 21 of the assembly pallet 30. When this writing is completed, the drive chain conveyor 4a conveys it to the downstream end where the writing device 22 is located, and when the work is completed here, the preparation for receiving the spring seat insertion device 5 described below is completed. After confirming that this is done, the sheet is conveyed to the spring seat insertion device 5. On the other hand, when the work is partially incomplete, that is, when the valve is not inserted into all the valve holes,
It stops at this position (correction station), displays a message to that effect on a display device (not shown), and issues an alarm. At this time, in front of this correction station, as described above,
Since the serving pallet 4C on which the valves that could not be inserted are placed is waiting, the operator manually inverts the assembly pallet by the reversing device 4H for correction and manually inserts the valve at the desired position. Then, when the worker performs the correction work and operates the correction completion switch, the writing device 22 writes on the identification display device 21 that the work in this step is completed, and the preparation for receiving the spring seat insertion device 5 described below is completed. If completed, the sheet is conveyed to the downstream spring seat insertion device 5.

The spring seat inserting device 5 shown in FIGS. 2, 15 and 16 includes a drive chain conveyor 5a forming a part of the assembling side conveying means 10 and a return side conveying means 11 below the driving chain conveyor 5a. A drive chain conveyor 5b (which is hidden below the drive chain conveyor 5a; a reference numeral is given in parentheses in FIG. 15) forming a part thereof is provided. Then, as shown in FIG. 16, the drive chain conveyor 5a is configured to be tiltable in the left-right direction (see arrow P in FIG. 16) orthogonal to the longitudinal direction of the conveyor about the lower pivot axis O. This conveyor 5a is a so-called "tilt type" chain conveyor.
On the upper surface of the above, there is provided a metal fitting 5e (see FIG. 15) for sandwiching the assembly pallet on the conveyor surface when tilting. Further, in the spring sheet inserting device 5, the reading / writing device 20 is arranged in the vicinity of the downstream end (the end of the assembly pallet 30) where the assembly pallet 30 is located in FIG. Drive chain conveyor 5
A writing device 22 is arranged at the downstream end (carry-out end) of a.

A triaxial robot 5A is arranged in the spring seat insertion device 5 and is connected to a spring seat supply portion 5c in which spring seats are lined up from above the conveyor 5a shown in FIGS. 15 and 16. It can move freely in any plane and can move up and down.
The spring seat gripping arm of the robot 5A is provided with a cylindrical rod 5d for sandwiching the spring seat and inserting it into the valve hole, as shown in FIG. Further, as shown in FIG. 15, in front of the spring seat supply portion 5c (upper side in FIG. 15), there are two vibrating part feeders 5B for three-dimensional objects which are aligned and supplied with seals, and the same plate material is used. Six vibrating part feeders 5B are provided for supplying the spring seats to the spring seat supply portion 5c. Although not shown, the spring seat inserting device 5 has a spare rod for sandwiching different kinds of spring seats and inserting them into the valve hole.

The spring seat inserting device 5
Fixes the assembly pallet 30 carried in by the drive chain conveyor 5a by sandwiching it by the sandwiching metal fitting 5e at the central portion, and at this position, the reading / writing device 20.
Confirms the model from the identification display device 21 (see FIG. 5) of the assembly pallet. Then, as shown in FIG. 17, the upper part of the cylinder head is sequentially tilted to the left and right at an angle suitable for the model, and the left and right valve holes h for intake and exhaust of the cylinder head CH are respectively vertical. Then, the spring seat is inserted from above by the rod 5d of the robot 5A.

Then, the reading / writing device 20 writes the work result in the identification display device 21 of the assembly pallet 30. When the work is completed, the work is conveyed by the drive chain conveyor 5a to the downstream end where the writing device 22 is provided, and when the work is completed here, the spring inserting device 6 (see FIG. 2) described below After confirming that the preparation for receiving is completed, it is conveyed to the spring insertion device 6. On the other hand, if there is a partial incomplete work, the work is stopped at this position (correction station), a display to that effect is displayed on a display device (not shown), and an alarm is issued. When the operator manually performs the correction work and operates the correction completion switch, the writing device 22 writes on the identification display device 21 that the work in this process is completed, and the spring insertion device 6 described below is received. When you're ready,
It is conveyed to the downstream spring insertion device 6.

The spring insertion device 6 shown in FIGS. 2 and 18 and 19 includes a drive chain conveyor 6a forming a part of the assembly side transfer means 10 and a return side transfer means 11 below the drive chain conveyor 6a. A drive chain conveyor 6b (concealed below the drive chain conveyor 6a .; reference numeral is given in parentheses in FIG. 18) forming a part is disposed. The drive chain conveyor 6a has a lower pivot axis O as shown in FIG.
It is constructed so that it can be tilted in the left-right direction (see arrow P) orthogonal to the longitudinal direction of the conveyor around the center at an angle that suits the model, and the upper surface of the metal fittings that clamps the assembly pallet on the conveyor surface when tilting ( (Not shown) is provided.

Further, in this spring insertion device 6, a spring distribution pallet 6c in which springs are arranged in a row from above the conveyor 6a shown in FIGS.
A three-axis robot 6A is provided which is movable in a plane extending above the spring supply portion 6c where is located and can move up and down. The above-mentioned movement and elevation are performed by the expansion and contraction movement of the pneumatic cylinder. The triaxial robot 6A includes a spring gripping arm 6B having a scissor-shaped hand 6d (see FIG. 20) that presses and grips the spring from the inside, and is schematically illustrated in FIG. , The spring S sandwiched by the above-mentioned serving pallet 6C
Is inserted on the outer periphery of the stem portion of the valve of the cylinder head CH which is inclined on the drive chain conveyor 6a and has the valve hole in the vertical state. Also in the case of the spring insertion device 6, as in the case of the valve insertion device 4,
If the spring S is not completely inserted, the robot 6A disposes the spring on the pallet 6C.
After returning to the original position on the upper side and completing a series of work with this device, the serving pallet 6C in which the spring S remains
In front of the correction station 6e (upward in FIG. 18)
To the position. In this case, the display device of this device indicates that there is a defective insertion and an alarm buzzer sounds, so that the worker removes the spring S from the serving pallet 6C in front of the correction station 6e and the spring S is present. The spring S is manually inserted into the outer circumference of the stem portion of the valve in the cylinder head corresponding to the position on the serving pallet 6C. By the way, on the above-mentioned catering pallet 6C, the spring inside the box taken out from the three-dimensional storage 6G by the same triaxial catering robot 6D arranged in front of the above-mentioned triaxial robot 6A, It is preset on the above-mentioned serving pallet 6C. Further, the three-dimensional storage box 6G is provided with a self-propelled lifting device 6h, and is configured to supply the box taken out from the three-dimensional storage box 6G to a predetermined position R near the distribution robot 6D.

Further, FIG. 18 of the spring insertion device 6 is shown.
In the vicinity of the downstream end (the end of the assembly pallet) of the assembly pallet 30, a reading / writing device 20 is arranged, and writing is performed at the downstream end (carry-out end) of the drive chain conveyor 6a. A device 22 is provided. The writing device 22 and the reading / writing device 20 project from the side onto the conveying surface of the conveyor when the assembly pallet 30 stops during reading and writing, and from the conveying surface of the conveyor when the reading and writing operations are completed. It is configured to retreat and evacuate to one side.

The spring insertion device 6 clamps and fixes the assembly pallet 30 carried in by the drive chain conveyor 6a by the clamping metal fittings (not shown) at the central portion, and at this position, Read / write device 2
0 confirms the model from the identification display device 21 (see FIG. 5) of the assembly pallet. Then, as shown in FIG. 20, the upper portion of the cylinder head tilts to the left and right at an angle suitable for the model, and as shown in FIG. 20, the stem portions of the left and right valves for intake and exhaust of the cylinder head. The robot 6A is in a vertical state, and the hand 6d of the robot 6A (see FIG.
The spring S is inserted into the outer circumference of the stem portion of the valve from above by referring to FIG. Then, the reading / writing device 20 writes the work result in the identification display device 21 of the assembly pallet 30. Then, when the work is completed, the drive chain conveyor 6a conveys the work to the downstream end where the writing device 22 is provided, and when the work is completed here, the cotter mounting device 7 (see FIG. 2) described below is used. Confirm that the preparations for receiving the
Transported to On the other hand, when the work is partially incomplete, that is, when the springs are not inserted into all the valve holes, the work is stopped at this position (correction station 6e), a display to that effect is displayed on the display device (not shown), and an alarm is issued. Emit. At this time, as described above, the serving pallet 6C on which the spring, which has been improperly inserted, is placed in front of the correction station, so that the operator manually inserts the spring at a desired position. Then, when the worker performs the correction work and operates the correction completion switch, the writing device 22 writes on the identification display device 21 that the work in this step is completed, and the preparation for receiving the cotter mounting device 7 is completed. If yes, it is conveyed to the cotter attaching device 7.

Further, in the cotter attaching device 7 shown in FIGS. 2, 21, and 22, the drive chain conveyor 7a forming a part of the assembling-side conveying means 10 and the return-side conveying means 11 therebelow are provided. A drive chain conveyor 7b (which is hidden below the drive chain conveyor 7a; a reference numeral is given in parentheses in FIG. 21) which constitutes a part thereof is provided.

A double-balance-type turning robot 7A is provided adjacent to the drive chain conveyor 7a for turning by holding the assembly pallet at both ends.
A tilting device 7B for tilting the assembly pallet with the cylinder head fixed is disposed on the opposite side of the drive chain conveyor 7a across A, and the anti-robot 7 of this tilting device 7B is disposed.
A three-axis robot 7D is arranged on the A side, and
The robot 7D is provided with a cylindrical rod 7d on its operating arm, which is freely movable in the plane from the upper side of the conveyor 7a to the cotter supply portion 7c shown in FIG. The rod 7d holds the integrated cotter and retainer and presses the spring. Further, in front of the cotter supply portion 7c (see FIG. 21).
In the upper part of Fig. 7), a vibrating part feeder 7E that aligns and supplies an integrated cotter and retainer.
10 are provided, and the integrated cotter and retainer are supplied to the cotter supply site 7c in a line. In addition, a read / write device (not shown) is arranged near the downstream end (the end of the assembly pallet) of the assembly pallet 30 in FIG.
A writing device 22 is arranged at the downstream end (carry-out end) of the drive chain conveyor 7a.

Although not shown, this cotter mounting device 7 has a spare rod for holding different types of cotters and retainers and pressing a spring.

The cotter mounting device 7 stops the assembly pallet carried in by the drive chain conveyor 7a at the central portion, and at this position, the reading / writing device (not shown) is an identification display device for the assembly pallet 30. Check the model from 21 (see Fig. 5).

Then, it is placed on the tilting device 7B by the turning robot 7A, the assembly pallet is fixed by the tilting device 7B, and the upper part is tilted left and right in sequence at an angle suitable for the model, and the cylinder is With the stems of the left and right valves for intake and exhaust of the head in a vertical position, the rod 7d of the robot 7D compresses the spring from above while attaching the cotter and retainer to the ends of the stems of the valve. Insert it.

Then, the reading / writing device writes the work result in the identification display device 21 of the assembly pallet 30. When the work is completed, the drive chain conveyor 7a conveys the work to the downstream end where the writing device 22 is located,
When the work is completed here, the work is carried by a lifter (not shown) to the drive chain conveyor 7b forming a part of the return-side carrying device 11 below. On the other hand, if the work is partially incomplete, the work is stopped at the correction station, a display to that effect is displayed on a display device (not shown), and an alarm is issued. Then, when the worker manually performs the correction work and operates the correction completion switch, the writing device 22 writes in the identification display device 21 that the work in this process is completed, and the writing is performed via the lifter as described above. It is conveyed to the drive chain conveyor 7b.

With the cylinder head assembly assembling apparatus (assembly apparatus) according to this embodiment, however, the cylinder head can be automatically assembled as follows. That is, when assembling, by inputting a model name (model code) to be assembled and a desired number of assembling from the input device of the central control unit 1, the central control unit 1 stores in the storage unit 1B. From the stored data group, the data group of the corresponding model (see FIG. 3) is extracted and the controllers 3A, 4A, 5A, 6A of the respective devices 3 to 7,
Transfer to 7A. When the work start switch of the apparatus is turned on in this state, the assembly pallet 30 is delivered from the assembly pallet storage rack 2B of the cylinder head mounting station 2 to the mounting work line 2A side. On this occasion,
The model of the cylinder head and the like are written in the identification display means 21 of the assembly pallet 30 by the writing device 22.

The worker vertically installs the positioning pins on the dispensed assembly pallet 30 according to the display on the display device (not shown) of the cylinder head mounting station 2. In addition, when there are few compatible models, the assembly pallets in which the positioning pins are erected in advance according to each model are stored in the above-mentioned assembly pallet storage rack 2B for each type, and the assembly pallet for the corresponding model is paid. It may also be used for taking out, and in this case, workability is further improved.

Then, the operator is to assemble the assembly pallet 30.
Install the cylinder head of the model applicable to. This attachment can be easily performed by pushing the fixing members 30d at both ends of the fixing bar 30c into the fixing fittings 30b with the cylinder head placed on the assembly pallet 30 at a predetermined position.

When this mounting work is completed, a mounting completion switch (not shown) is turned on, and the assembly pallet 30 changes its direction by 90 degrees from the mounting work line 2A through the drive roller conveyor 2b to transfer line. 10 is conveyed to each apparatus 3-7 side. At this time, if the controller 3A of the valve seal press-fitting device 3 performing the first assembly process can accept the signal, a signal to that effect is sent to the main sequencer 1N, the signal is confirmed, and the valve seal press-fitting device 3 side is confirmed. Be delivered to. At the time of this loading, the reading / reading provided on the valve seal press-fitting device 3
The writing device 20 uses the identification display means 21 of the assembly pallet 30.
That is, the model, that is, the presence or absence of the completion of the work of the preceding process is confirmed, and the work is performed only when the contents of the information supplied in advance and the work completion information are read. At this time, when the information of the above contents cannot be read, the transfer line 10 is stopped, the work in the valve seal press-fitting device 3 is stopped, and an alarm buzzer is sounded to notify the operator. At this time, the contents are displayed on a display device (not shown) of the valve seal press-fitting device 3.

On the other hand, when the conditions for the valve seal press-fitting device 3 to perform the work of the assembly pallet 30 are satisfied, the completion of acceptance is confirmed and the result is transmitted to the main sequencer 1N, and at the same time, the valve seal press-fitting device 3 is assembled into the assembly pallet 30. A signal indicating that there is 30 and that the assembly work is in progress is transmitted to the main sequencer 1N so that the next assembly pallet is not carried in.

In the valve seal press-fitting device 3, the data group given from the central control device 1 is loaded into the basic processing program stored in advance in the storage device 3a of the device, and the data is given according to the model. Perform the operation of. For example, the robot takes out the valve seal from the parts feeder 3B accommodating the valve seal of the corresponding model and press-fits the valve seal into a predetermined position of the cylinder head on the assembly pallet at a predetermined position. These operations or the tilting angles for tilting the assembly pallet 30 are
This is performed based on a program formed by incorporating a data group given from the central control unit 1 into a basic processing program.

When the processing by the valve seal press-fitting device 3 is completed, the controller 3A causes the assembly pallet 30
The identification display means 21 is instructed to write the data indicating that the predetermined processing is completed by the read / write device 20 (see FIG. 1).

Then, the controller 3A confirms through the main sequencer 1N to the controller 4A of the next valve inserting device 4 whether or not the assembly pallet is in a receivable state, and the receivable signal is transmitted. If so, it is carried out to the valve insertion device 4 side. When carrying out this, the writing device 22 of the valve seal press-fitting device 3
Thus, the above-mentioned confirmation or correction processing is added.

Further, the valve inserting device 4 goes through the same procedure as in the case of receiving the assembly pallet 30 of the valve seal press-fitting device 3, and if the condition for starting the work is satisfied, the cylinder head on the assembly pallet 30 is provided. Then, the valve is inserted by the valve insertion device 4 as described above.

In this way, the predetermined assembling work is sequentially performed in each of the devices 3 to 7.

Finally, the cotter mounting device 7 is attached.
When the assembling is completed, the assembling pallet 30 is lowered from the assembling side conveying means 10 to the return side conveying means 11 located below by a lifter (not shown). The cylinder head is conveyed, and then lifted up to the same level as the conveying level of the assembling side conveying means 10 by the lifter. At this position, the cylinder head that has been completely assembled is removed from the assembly pallet 30 by the operator.

According to this cylinder head assembly assembling apparatus and assembling method, each of the apparatuses 2 to 7 is provided with a conveyor which constitutes a part of each of the assembling side conveying means and the returning side conveying means. A cylinder head assembly assembling device that performs the necessary work can be formed by sequentially connecting (extending) each device as needed.

Also in the case of sequentially connecting in this way, in terms of control, the data group for the extension is added to the central control unit 1 and the basic processing program is added to the controller of the added unit. By incorporating this controller and connecting this controller to the central control device 1, it is possible to easily add a device for performing the required work. Therefore, conventionally, a large-scale work such as an additional work by on-site processing of the transfer device and a complete revision of the program in terms of control is not required unlike the case where a desired device is added to the device.

By the way, in the above embodiment, the data group of the corresponding model is collectively given from the central control unit to each controller before processing the cylinder head of that model. When the reading / writing device reads the model of the cylinder head from the identification display device on the assembly pallet, it may be sent from the central controller to the controller of the device. With this configuration,
This is advantageous when processing multiple models by mixing them. In other words, it is possible to process even if several cylinder heads of different models flow.

Instead of this, when the model of the cylinder head is read from the identification display device on the assembly pallet by the reading / writing device of the first device (the valve seal press-fitting device in the above embodiment), the central control unit If it is configured to be sent to the controller of each device from
It is possible to improve the efficiency (speeding up) of data group transfer.

[0081]

According to the cylinder head assembly assembling method and the assembling apparatus according to the present invention, however, it is possible to easily assemble different kinds of products back and forth as appropriate in order to cope with a variety of small-volume production. Since the equipment including the jigs and jigs and the control system are organically configured to suit a variety of small-volume production, the initial equipment investment and additional equipment investment in case of expansion are minimal, and automation is possible as much as possible. be able to.

Furthermore, as a result of being able to unify product and production information by making it online with the design department or production planning department, rationalization of the entire factory is promoted.

Further, even for a new model, since only the data group of the model needs to be added to the central control unit, it is possible to easily and promptly deal with it.

In addition, the production cost can be reduced and mass production corresponding to the increase in production is possible as compared with the case of the conventional "manual assembly".

[Brief description of drawings]

FIG. 1 is an overall configuration diagram (block diagram) showing a configuration such as a control relationship of an assembly device of a cylinder head assembly.
Is.

FIG. 2 is an overall layout view showing an overall planar layout of the assembly apparatus shown in FIG.

FIG. 3 is a diagram showing a table of data groups for a spring seat insertion device, which is one of the data groups stored in the storage device of the central controller.

FIG. 4 is a diagram showing a part of a basic processing program of the spring seat insertion device stored in a controller of the device.

FIG. 5 is a perspective view of an assembly pallet in which the attached cylinder head is shown by a chain double-dashed line and a part of which is cut away.

6 is a partial cross-sectional view of the portion for fixing the fixing bar of the assembly pallet shown in FIG.

FIG. 7 is an overall plan view showing the configuration of the attachment station shown in FIG.

8 is a side view of the mounting station shown in FIG. 7, taken along the line II-II in FIG.

FIG. 9 is an overall plan view showing the configuration of a valve seal press-fitting device that press-fits a valve stem seal.

10 is a side view taken along the line III-III in FIG. 9 showing the configuration of the valve seal press-fitting device shown in FIG. 9.

FIG. 11 is a schematic view showing a state in which valve seals are press-fitted into the left and right valve holes of the cylinder head.

12 is an overall plan view showing the overall configuration of the valve insertion device shown in FIG.

13 is a side view taken along the line IV-IV in FIG. 12 showing the configuration of the valve insertion device shown in FIG.

FIG. 14 is a schematic view showing a state in which a valve on the serving pallet is gripped and the valve is press-fitted into the left and right valve holes of the cylinder head.

15 is an overall plan view showing the overall configuration of the spring seat insertion device shown in FIG.

16 is a side view taken along the line VV of FIG. 15 showing the configuration of the spring seat insertion device shown in FIG.

FIG. 17 is a schematic view showing a state in which spring seats are respectively inserted into the left and right valve holes of the cylinder head.

18 is an overall plan view showing the overall configuration of the spring insertion device shown in FIG.

19 is a side view taken along the line VI-VI in FIG. 18 showing the configuration of the spring insertion device shown in FIG.

FIG. 20 is a schematic view showing a state in which springs taken out from a serving pallet are inserted into the left and right valve holes of the cylinder head.

FIG. 21 is an overall plan view showing the overall configuration of the cotter attaching device shown in FIG.

22 is a side view taken along the line VII-VII in FIG. 21 showing the configuration of the spring insertion device shown in FIG. 21.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Central control device 2 ... Cylinder head mounting station 3 ... Seal press-fitting machine 4 ... Valve insertion device 5 ... Spring seat insertion device 6 ... Spring insertion device 7 ... Cotter mounting device 10 ... Assembly side conveyance means 11 ... Retire side conveyance means 30 ... Assembly pallet

Front page continued (72) Kotaro Higashi 1-1 Kawasaki-cho, Akashi-shi, Hyogo Prefecture Kawasaki Heavy Industries Ltd. Akashi Plant Co., Ltd. (72) Shunji Dan Dan 1-1 Kawasaki-cho, Akashi-shi, Hyogo Inside the factory (72) Inventor Takeshi Kimura 1-1 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Akashi factory

Claims (11)

[Claims] 1. A central control device for providing a controller of each device with a data group peculiar to a model to be produced according to a production plan and managing production such as the number of assembled units, and a cylinder head attachment station for attaching a cylinder head body to an assembly pallet. And a plurality of devices for assembling each part to the cylinder head body, and a cylinder head mounted on an assembly pallet in the assembly process, which is arranged so as to be able to continuously convey between these devices, from the device of the previous process. Conveying means for conveying to the apparatus of the next step and, if necessary, returning the assembled cylinder head assembly to the cylinder head removing station arranged near the cylinder head mounting station, and a controller for controlling each apparatus. Each part is attached to the cylinder head body using A method for assembling a cylinder head assembly, wherein the central control unit stores a data group necessary for each unit to perform a predetermined operation according to each model to be assembled, and each unit Controller stores the basic processing program of the operation in each device, and during the assembly work, the central control unit transfers the data group of the model to be processed to the controller of each device, and the controller of each device A method of assembling a cylinder head assembly, characterized in that each is incorporated into a basic processing program stored in itself, and is controlled so that each device performs an operation suitable for a model to be processed. 2. A central controller for transferring a data group peculiar to a model to be produced according to a production plan to a controller of each device and for controlling production such as the number of assembled units, and a cylinder head for mounting a cylinder head body on an assembly pallet. A mounting station, a valve seal press-fitting device that presses a valve seal into the loaded cylinder head, a valve insertion device that inserts a valve into the loaded cylinder head body, and a spring on the valve stem of the loaded cylinder head. A spring seat inserting device for inserting a seat; a spring inserting device for inserting a spring into a valve stem of a cylinder head that has been carried in; a cotter mounting device that mounts a cotter at the valve stem end of the cylinder head that has been carried in; Installed in each device for the assembly process The cylinder head mounted on the assembly pallet is received from the previous process and conveyed to the next process, and if necessary, the assembled cylinder head is returned to the cylinder head removal station located near the cylinder head mounting station. A method of assembling a cylinder head assembly, in which each component is assembled to a cylinder head main body by using a device that includes a transporting means for controlling the device and a controller that controls each device, wherein the central control device In addition to storing a data group required for each device to perform a predetermined operation for each model, the controller of each device stores a basic processing program of the operation in each device, , The data of the model to be processed by the controller of each device It is configured to transfer a group, and the controller of each device incorporates this data group into the basic processing program stored in itself and controls so that each device operates in accordance with the model to be processed. A method of assembling a cylinder head assembly, characterized by: 3. The transfer of the data group is performed for each device by identifying the model of the cylinder head attached to the assembly pallet when the assembly pallet is carried into each device. The method of assembling the cylinder head assembly according to claim 1 or 2. 4. When the assembly pallet is carried into the first one of the devices, the model of the cylinder head attached to the assembly pallet is identified to transfer all the data to all the devices. The method for assembling a cylinder head assembly according to claim 1 or 2, which is performed. 5. A method of assembling a cylinder head assembly, which comprises the following series of steps (a) to (h): (a). Entering a model name to be assembled in the central control unit. Then, the central control unit takes out the necessary data group peculiar to the model corresponding to each device from the storage device and transfers it to the controller of each device, and the controller of each device incorporates the data into the basic processing program and is ready. (B) .In the above-mentioned ready state, the identification mark for identifying the model is displayed on the identification display means provided on the assembly pallet that is dimensionally unified regardless of the model to be supplied and circulates in the assembly line. When the cylinder head body is attached to this assembly pallet and a signal indicating the completion of installation is input, (c). Check whether placed can flag has been formed, if it is formed the assembled pallet is unloaded to the valve sealing indentation device side, (d).
Prepared based on the predetermined data of the previously transferred data group after checking whether the model indicated by the identification code attached to the assembly pallet with the valve seal press-fitting device is the same as the entered model. Press the valve seal of the applicable model with the seal press-fitting rod in an operation that matches the model, and press it into the outer periphery of each valve hole at the position unique to that model.When the press-fitting work is completed, the valve inserter of the next process If it is formed by checking whether the acceptance flag of the assembly pallet is formed in the controller, the assembly pallet is carried out to the valve insertion device side, and (e) the identification symbol of the assembly pallet is indicated by the valve insertion device. After checking whether the model and the entered model are the same, prepare based on the specified data in the previously transferred data group. When the stem of the valve of the applicable model is inserted into each valve hole at the position unique to that model by the valve insertion means in an operation that matches the model, and when the insertion work is completed, the spring seat insertion device for the next process Check if the assembly pallet receivable flag is formed on the controller, and if it is formed, carry out the assembly pallet to the spring seat insertion device side, and (f). After checking whether the model indicated by the identification code is the same as the model entered above, the spring sheet of the corresponding model prepared based on the specified data of the previously transferred data group is used. With the gripping arm, insert it into the outer periphery of each valve stem at a position unique to the model in an operation that matches the model. Along with
When the insertion work is completed, the controller of the spring insertion device in the next step checks whether or not a flag that can accept the assembly pallet is formed, and if it is formed, the assembly pallet is carried out to the spring insertion device side. g).
After checking whether the model indicated by the identification symbol of the assembly pallet with the spring insertion device is the same as the entered model, the corresponding model prepared based on the predetermined data of the previously transferred data group The springs are sequentially inserted by the spring gripping arm into each valve stem outer peripheral part at the position peculiar to the model in an operation that matches the model, and when the insertion work is completed, the controller of the cotter mounting device in the next process Check whether or not the acceptable flag is formed, and if it is formed, carry out the assembly pallet to the cotter mounting device side, and (h). After checking whether it is the same as the model that was created, prepare based on the data of the previously transferred data group Attach the cotter and retainer of the applicable model to each valve stem end at the position peculiar to the model by the operation matching the model by the cotter mounting arm.When the mounting work is completed, the assembled cylinder head assembly is , Is returned to a position near the cylinder head mounting station to which the cylinder head main body is fixed, via the return side transport means. 6. When each said apparatus carries out an assembly pallet, it sends a signal for carrying out to the apparatus on the next process side,
6. The method of assembling a cylinder head assembly according to claim 5, wherein the device on the next process side is configured to send a signal to that effect to the device on the delivery side when receiving the assembly pallet. 7. A component to be assembled in each of the devices is supplied on a distribution pallet in a state of being arranged according to the arrangement in a cylinder head to be assembled,
When a part that cannot be assembled occurs, return the part that cannot be assembled to its original position on the serving pallet, stop the assembly pallet before it is carried out to the equipment side in the next process, and then mount the assembly pallet in the vicinity thereof. 7. The method for assembling a cylinder head assembly according to claim 5 or 6, wherein the unusable parts are supplied in a state of being placed on a serving pallet. 8. An apparatus for assembling a cylinder head assembly, comprising the following series of apparatuses (a) to (i). (a) .The data group necessary for each device to perform a predetermined operation for each model to be assembled is stored in the storage means, and the above data group is stored in the controller of each device described in (b) below during the assembly process. And a central controller equipped with an input means for inputting a data group necessary for assembling the cylinder head when a new model is created, and (b). (C) .Dimensions regardless of the model of the cylinder head to be supplied, and the controller that causes the device to perform the operation suitable for that model by incorporating the data group from And an assembly pallet equipped with a readable and rewritable identification display means that circulates in the assembly line with the cylinder head attached and stores the identification symbol for identifying the model. And (d). Below (e) to (i)
An assembly-side transport means attached to each device described in (1) and that transports from the device side of the previous process to the device side of the next process during assembly work, and (e). A valve seal press-fitting device equipped with a read / write means for reading the identification mark of the display means and a seal press-fitting rod for press-fitting the valve seal into the outer peripheral portion of the valve hole of the cylinder head on the assembly pallet, (f). A reading / writing means for reading the identification symbol of the identification display means is provided at the receiving portion of the side conveying means of this device, and the valve stem portion is gripped in each valve hole of the cylinder head main body on the assembly pallet. A valve inserting device having a valve inserting means for inserting a portion, and (g) a reading / writing device for reading the identification symbol of the above identification indicating means on the receiving portion of this device of the assembling side conveying means. A spring seat insertion device that is provided with a spring seat gripping arm that inserts a spring seat into the outer periphery of each valve stem of the cylinder head on the assembly pallet, and (h). A spring insertion device having a read / write means for reading the identification symbol of the identification display means, and a spring gripping arm for inserting a spring in the outer peripheral portion of each valve stem of the cylinder head on the assembly pallet; .A reading / writing means for reading the identification symbol of the above-mentioned identification display means is provided at the receiving part of this device of the assembling side conveying means, and a cotter attaching arm for attaching a cotter to each valve stem end of the cylinder head on the assembling pallet. Equipped with a cotter mounting device. 9. A return-side transfer means, which is arranged facing the assembly-side transfer means vertically or horizontally, and which returns the assembled cylinder head to the vicinity of a cylinder head attachment station where the cylinder head is fixed to an assembly pallet. The cylinder head assembly assembling apparatus according to claim 8, further comprising: 10. The cylinder head according to claim 8, wherein the assembling-side transporting means or the return-side transporting means is formed by connecting a conveyor arranged independently to each device. Assembly assembly equipment. 11. At least one of the valve seal press-fitting device, the valve inserting device, the spring seat inserting device, the spring inserting device, and the cotter attaching device has a vertical insertion direction when inserting a component to be attached. 9. The cylinder according to claim 8, further comprising tilting means for tilting the cylinder head so that the tilting angle can be changed according to each model according to an instruction from the controller. Head assembly assembly device.