JPH0214943Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention comprises a removable pallet with pulleys attached to the required locations on the back surface, and a means for tilting or leveling the pallet as required. The present invention also relates to a workbench in which the pallet can be smoothly moved forward and backward.

``Prior Art'' As shown in FIG. 7, a conventional workbench is comprised of a table 2 equipped with a belt conveyor 1 and a workbench 3 with one end attached to the table 2.

Therefore, during the work, unfinished products sent by the belt conveyor 1 are taken and worked on the workbench 3, and after the work is completed, the products are returned to the belt conveyor 1 and sent to the next process.

However, for example, the assembled product 4 is placed from the belt conveyor 1 to the workbench 3 and then worked on, which is a waste of man-hours even if the product is light.
Particularly in the case of heavy products, holding work can be tiring.

Moreover, the width of both the belt conveyor 1 and the workbench 3 is required.

In addition, there are many cases where the belt conveyor 1 is not used and the work is carried out sequentially using only the workbench 3, but this is inefficient and there is also a method in which the work is carried out while the belt conveyor 1 is moving.
In this case, there is a drawback that only simple tasks can be performed.

``Problems that the invention attempts to solve'' This invention was created in view of these problems, and it eliminates the waste caused by holding work, and also prevents the movement of unfinished products during assembly work. The technical challenge is to make it possible to tilt the pallet to the required angle, and after completing the assembly, return the pallet to a horizontal state so that the product can be smoothly sent to the next process.

"Means for Solving the Problems" The present invention takes the following technical means to solve the above problems.

A workbench that meets the following conditions A, B, C, D, E, and F: A. The workbench frame is formed by multiple workbench legs and a workbench frame.

B. Supports are formed at the required intervals on the upper and lower workbench frames of the workbench frame.

C. A large number of bearings are fixed to the upper workbench frame, and one or more pallet fixing tables surrounding the plurality of bearings are provided.

D. A cylinder is fixed on the lower workbench frame corresponding to the approximate center of the pallet fixing table, and one end of a piston rod that moves up and down by the operation of the cylinder is fixed to the back surface of the pallet fixing table.

E. A pulley is rotatably mounted on the back side of the pallet that can slide on the pallet fixing table.

F. A pallet return rail that engages with the pulley of the pallet is attached to the work platform leg at an angle.

``Operation'' The pallet placed on the work table bearing fixed table is raised or lowered by a pneumatic cylinder that is operated each time the pallet is set up according to the worker's setup, and the pallet is tilted to the required angle of inclination. Alternatively, a horizontal state is obtained, and the operator then retrieves the necessary parts from the parts table, assembles them into the product on the pallet, and then operates the cylinder to bring the pallet into a horizontal state. Transferred to worker.

When the end of the platform is reached, the pallet is removed from the stationary platform and its pulleys are engaged with the pallet return rail, causing the pallet to slide along the rail until it reaches the starting end.

"Example" 10 is a work platform leg 101, 101 made of square steel pipe...
The entire workbench frame is shown by assembling a workbench vertical frame 102 and a workbench horizontal frame 103 made of equilateral angle iron by welding or using tightening members such as bolts and nuts.

104, 105 are upper and lower workbench frames attached to the upper and lower parts of the workbench frame A via workbench legs 101, 101, and the upper workbench frames 104, 104...
and lower workbench frames 105, 105... Supports 11, 11 and 1 are placed at required intervals above.
2 and 12 are attached.

A rotatable ball 2 is attached to the supports 11, 11.
A large number of swivel bearings 21, 21, . . . are fixed thereto.

Reference numeral 23 denotes a pallet fixing base formed somewhat lower than the height of the swivel bearings 21, 21, and one end of the fixing base 23 is formed with a V-groove 231 as shown in FIGS. 3 and 4.

Reference numeral 24 denotes an L-shaped support member that engages with the V-groove 231 of the pallet fixing table 23, and the side end of the support member 24 is fixed to the workbench leg 101.

25 is a cylinder such as a hydraulic cylinder or a pneumatic cylinder, and the lower end of the cylinder 25 is fixed to the supports 12, 12 via a cylinder fixing base 251.
The upper end of the piston rod 252 inside is joint 2.
It is pivotally connected to the lower surface of the pallet fixing table 23 via a pin 53.

A solenoid valve 254 is installed in the cylinder fixing base 251.
For example, when pressurized fluid is supplied to or discharged from the solenoid valve 254 into the cylinder 25 through pipes 255 and 256, the piston rod 252 is raised or lowered.

It is also possible to switch the air using an operating valve without using a solenoid valve, but in this case it is necessary to keep stepping on the operating valve while the pallet is being raised.

Reference numeral 257 is a foot switch that operates the electromagnetic valve 254. When the foot switch 257 is pressed, the switch is turned on.

Reference numeral 30 denotes a pallet made of lightweight plates such as lauan plywood or plastic plates, an elastic material such as rubber is adhered to the surface of the pallet 30, and pulleys 31, 31 are rotatably attached to the upper left and right sides of the back surface. .

Reference numeral 31' denotes a pallet return rail attached to the workbench leg 101 of the workbench frame A, and is attached so that the rear is somewhat lower than the front in the longitudinal direction of the workbench frame A.

32 is a pallet stopper attached to the terminal end of the pallet return rail 31', 33 is a component mounting table arranged in the longitudinal direction in parallel with the workbench frame A, and a notch is provided at the starting end side of the pallet return rail 31'. The notch allows the pallet 30 to be easily removed from the bearing 21.

In the drawings, reference numeral 34 is an assembly, and 35 is a pipe connecting a separate compressor (not shown) and the solenoid valve 254.

"Effect of the Idea" As shown in Fig. 5, when ordering the parts necessary for the assembly 34 on the pallets 30, 30... placed in front of each worker from the parts table 33 and assembling them, When the foot switch 257 is pressed, the solenoid valve 254 is actuated, and the pressurized air actuates the cylinder 25, causing the pallet fixing base 23 to rise slightly.
By tilting with the fulcrum at the pallet 30
Clearance C between the lower surface of the bearing 21 and the bearing 21
is formed, which secures the pallet 30 in place.

In short, it saves space, eliminates the number of man-hours required for holding and feeding, and makes it easier to work with especially heavy products because the pallet tilts.

Also, since the pallets can be fixed,
Can also perform precision work.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted perspective view showing the state in which the pallet has been removed from the workbench of the present invention, Fig. 2 is a side view of Fig. 1 showing the state in which the lower surface of the pallet is in contact with the bearing, and Fig. 3 is a side view of the pallet. Fig. 1 is a side view showing a state in which a gap is formed between the lower surface and the upper surface of the bearing, Fig. 4 is a partially enlarged sectional view of Fig. 3, and Fig. 5 shows a pallet placed on the bearing of the workbench of the present invention. 6 is a perspective view of the rear side of the pallet shown in FIG. 5, and FIG. 7 is a perspective view of a conventional example.

Claims (1)

[Scope of Claim for Utility Model Registration] A workbench that meets the following conditions A, B, C, D, E, and F. (A) A workbench frame is formed by multiple workbench legs and a workbench frame. (B) Supports are formed at the required intervals on the upper and lower workbench frames of the workbench frame. (C) A large number of bearings are fixed to the upper workbench frame, and one or more pallet fixing tables surrounding the plurality of bearings are provided. (D) A cylinder is fixed on the lower workbench frame corresponding to the approximate center of the pallet fixing table, and one end of a piston rod that moves up and down by the operation of the cylinder is fixed to the back surface of the pallet fixing table. thing. (E) A pulley is rotatably mounted on the back side of the pallet that can slide on the pallet fixing table. (F) A pallet return rail that engages with the pallet pulley is attached to the work platform leg at an angle.