JPS60123267A - Hanger type shot blast machine - Google Patents

Abstract

PURPOSE:To enhance the working ability of blast treatment, by providing such an arrangement that a subhanger suspending a workpiece after blast treatment is again locked to a subhanger carrying means in an elevating mechanism and is released from a hanger in a blast cabinet. CONSTITUTION:A workpiece 14 carried by a work conveying device 12 is suspended from a subhanger 90 which has been locked by a subhanger carrying means 126 in an elevating mechanism. In this condition, a carrier bed 86 travels toward the opening section of a blast cabinet where the subhanger 90 is suspended by a hanger 18 and the workpiece 14 is subjected to blast treatment. Thereafter, the subhanger 90 suspending the workpiece 14 is again locked by the subhanger carrying means 126 in elevating mechanisms 120, 88, therefore, is released from the hanger 18 and shifted onto the work conveying device 12 where the workpiece 14 which has been suspended from the subhanger 90 is released. Thus, the installation and removal of workpieces may be mechanically mode, thereby the working ability of blast treatment may be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hanger set sotoblasting machine that performs blasting on a workpiece suspended by a hanger, and in particular,
This invention relates to a shot blasting machine that mechanically attaches and detaches the workpiece to and from a hanger.

Workpieces transported by a workpiece transport device such as a roller conveyor are hung on a hanger installed in the blast cabinet, and the workpieces are blasted by projecting a predetermined abrasive material while rotating the hanger. A shot blasting machine with a set of hangers has been provided for a long time.

By the way, in such a shot blast machine,
Transporting the workpiece, rotating the workpiece in the blast cabinet, and projecting the abrasive material have already been automated, improving the workability of the blasting process. When removing the blasted workpiece from the hanger, it is still common for an operator to manually remove the workpiece from the hanger using a balancer or the like. For this reason, the improvement in work efficiency of blasting was limited, and the labor burden on the workers was also increased, especially in the case of mass production.

The present invention has been made against the background of the above-mentioned circumstances, and its purpose is to provide a short hanger set that mechanically attaches and detaches a workpiece to and from the hanger and improves the workability of the blasting process. Our goal is to provide blasting machines.

In order to achieve such an object, the present invention provides (a
(b) a shot blasting device that blasts a workpiece suspended from a hanger in a blast cabinet having an opening on the side of the workpiece conveyance device; (C) a sub-hanger that suspends the workpiece on the workpiece transport device and is suspended from a hanger in the plast cabinet; and (d) reciprocating movement from the workpiece transport device (■) to the opening side of the plast cabinet. (e) a sub-hanger mounting means for removably mounting the sub-hanger, which is provided on the elevating mechanism and is attached to a traveling base that is movable up and down; The complete hanger shot blasting machine was constructed to include the following.

In this way, the workpiece conveyed by the workpiece conveyance device is suspended from the sub-hanger that is stopped by the sub-hanger mounting means of the elevating mechanism, and in this state, the traveling platform is moved to the opening of the plast cabinet ( The workpiece is transferred to the inside of the plastic cabinet I, where the sub-hanger that suspends the workpiece is detached from the sub-hanger mounting means of the lifting mechanism and suspended from the hanger inside the plastic cabinet. I am forced to do it.

After the work is blasted in the blast cabinet, the sub-hanger that suspends the work is once again locked to the sub-hanger loading means of the elevating mechanism and detached from the hanger in the throat of the blast destination. The workpiece is then transferred onto the workpiece transfer device, where the workpiece suspended from the sub-hanger is released.

Therefore, all workpieces are attached to and detached from the hangers in the plast cabinet mechanically, which greatly reduces the labor burden on the operator. In addition, by mechanizing the process in this way, it becomes possible to automate the process, further improving the processing efficiency of shot blasting. Therefore, by applying the shot blast ta according to the present invention to a production line intended for mass production of automobile parts, etc., particularly excellent effects will be exhibited.

Next, in order to clarify the present invention more specifically,
An embodiment of the present invention will be described in detail based on the drawings.

First, FIGS. 1 and 2 are a front view and a plan view of a hanger set shotblasting TS according to the present invention. In these figures, 10 is a shot blasting device, and a workpiece 1 transported by a workpiece transporting device 12 is
4 is adapted to be suspended from a hanger 18 of the shot blasting device 10 by a workpiece suspension device 16.

The shot blasting apparatus 10 is equipped with a blast cabinet 22 having an opening 20 on the side of the work transfer device 12, and a rotary plate 24 is rotatably provided on the upper part of the blast cabinet 22. Further, at the center of this rotary plate 24, a rotary shaft 26 is provided downwardly.
is erected, and four partition plates 28 are fixed to the rotating shaft 26 at equal angular intervals in the circumferential direction without protruding in the radial direction. The interior of the plastic cabinet 22 is divided into four spaces by these four partition plates 28, and the hanger 18 is disposed in each space.

Further, the hanger 18 is rotatably attached to the outer circumferential portion of the rotating plate 24, and is rotated around the rotating shaft 26 along with the rotation of the rotation Fj, 24.

Here, the rotary plate 24 is intermittently rotated by 1/4 rotation (90 degrees), and each hanger 18 is stopped at each station position of A, B, C, and D. Predetermined tasks are automatically performed.

That is, at station position A, the workpiece 14 is transferred between the workpiece hanging device 16 and the hanger 18, and at station position C, the workpiece 14 is transferred by the abrasive material projected from the abrasive material projection device 30. Blast processing is applied to the workpiece 14, and at the station position, an air blow is applied to the workpiece 14 which has been subjected to the plus 1 treatment, and the abrasive material and foreign matter adhering to the workpiece 14 are blown off. . Note that at station positions C and D, a sprocket 32 fixed to the upper end of the hanger 18 is engaged with a chain 34, and the work 14 is rotationally driven together with the hanger 18. Also, at station position A, the sprocket 32 is engaged with the chain 36, but this is only for positioning the hanger 18 at a constant rotational position for transferring the workpiece 14.

A screw container 38 is disposed below the blast chambers 1 to 22 to collect foreign matter and abrasive materials generated by the blasting process. Note that the collected abrasive material and foreign matter are supplied to the shot separator 42 by the hekenoto electric heater 40, where the abrasive material and foreign matter are separated, and the abrasive material is sent back to the abrasive material projection device 30 again. Force, foreign matter is piping 44
The dust is then sent to a dust collector (not shown).

On the other hand, as shown in the enlarged front view of FIG. 3, the workpiece conveyance device 12 includes a carry-in roller conveyor 46 for carrying in the workpiece 14 from the previous process, and a carry-in side roller conveyor 46 for carrying the workpiece 14 to the subsequent process.
The opening 2 of the plastic cabinet 22 is located between the carry-out side roller conhair 48 for generally taking out the plast cabinet 2, and the roller conhair 46 and 48 on the carry-in side and the carry-out side.
A central roller conveyor 5 provided at a position corresponding to o.
It consists of three roller conveyors.

Those roller conveyors 46, 48. and 5o are each equipped with a large number of rollers 52 connected by a chain (not shown), and this roller 52 is connected to a motor 54 (
The workpiece 14 placed on the roller 52 is rotated by the roller conveyors 46 and 48 on the carry-in side and the carry-out side (not shown), so that the workpiece 14 placed on the roller 52 is moved to the guide plate 56.
It is designed to be transported while being guided by.

Further, a rotating shaft 6o is fixed at the center of the table 58 to which the roller 52 and motor 54 of the center roller conditioner 50 are attached. This rotating shaft 6
0 is rotatably supported by the bracket 62 and fixed to the other end of an arm 68 whose one end is pivoted to the rod 66 of the cylinder 64. As a result, the table 58 is reversely rotated between the horizontal position shown by the solid line in FIG. The posture of the robot is changed by approximately 90 degrees. In this embodiment, an automobile transmission is used as the workpiece 114, and in order to prevent the workpiece 14 from changing its posture (swinging) when it is hung on the hanger 18, the table 58 is turned upside down. The posture of the workpiece 14 is previously converted into a stable state by the movement.

Further, the table 58 is provided with a stopper 70 for positioning the workpiece 4 and a pair of clampers 72 for fixing the workpiece 14 on the table 58.

The stopper 70 is for determining the stopping position of the workpiece 14 sent from the carry-in roller conveyor 46 and for positioning the workpiece 14 with respect to the workpiece suspension device 16, and is shown in detail in FIG. As shown, it is rotatably supported by a bin 74 provided on the table 58. A cylinder 7 is provided at one end of the stopper 70.
6 Rondo doors 8 are pivoted. As a result, the stopper 70 is positioned in two positions, a locked position (not shown by a solid line in FIG. 4) and a non-locked position (shown by a two-dot chain line) in accordance with the operation of the cylinder 76. By being positioned, the workpiece 14 is positioned. Note that the workpiece 14 is placed on the table 58 by a stopper 70.
A sensor such as a phototube (not shown) is provided to detect the positioning of the roller 52, thereby stopping the operation of the morph 54 that rotationally drives the roller 52.

On the other hand, the pair of clampers 72 are used to hold the workpiece 14 in a fixed position when the table 58 is reversely rotated, and as shown in FIGS. 5 and 6, the width of the table 58 is The rollers 52 are provided at opposite ends of the roller 52 in the axial direction so as to face each other. The clampers 72 of this type are respectively installed on the table 58.
The clampers 72 are rotatably supported by a bolted pin 80, and one end of each clamper 72 is pivotally attached to a cylinder 82 and a rod 84 of the cylinder 82, respectively.

As a result, both clampers 72 are moved to two positions, a non-clamper position shown by a solid line in FIG. 6 and a clamper position shown by a dotted chain line in FIG. Pressure is applied by the operating force of. This is a pair of clampers 7
2, the cylinder 82, and the like constitute a clamp mechanism that clamps the workpiece 14.

Then, 11! is carried out by such a work transfer device 12!
The sent workpiece 14 is placed in a predetermined workpiece suspension device 16.
It is adapted to be suspended from the hanger ]8 of the syjisotoblast apparatus 10. As shown in an enlarged view in FIGS. 7 and 8, this workpiece suspension device 16 includes a traveling platform 86 that is moved horizontally across the workpiece conveying device 12'', and It is configured to include an elevating member 88 that is provided so as to be movable in the vertical direction, and a sub-hanger 90 that is removably mounted on the elevating member 88.

The traveling table 86 of the workpiece suspension device 16 includes a rectangular traveling table main body 92 and a pair of guide members 94 erected vertically downward on the traveling table main body 92. Four wheels 96 are rotatably attached to the upper part of the base body 92. Further, at the upper part of the plastic cabinet 22 on the side of the opening 20, there is a pair of horizontal members 1 whose distal ends are supported by support posts 98.
00 extends horizontally across the workpiece transport device 12, and rails 102 and 104 are provided at the upper part of the horizontal member 100, respectively, to face each other in the vertical direction. And these rails 102 and 10
By fitting the wheels 96 between the rails 102 and 104, the carriage 86 can reciprocate horizontally along the rails 102 and 104.

A bracket 106 is fixed to the main body 92 of the traveling platform, and a rod 10 of a cylinder 108 disposed at the top of the plastic cabinet 22 is attached to the bracket 106.
is installed. As a result, the traveling platform main body 92,
In other words, the workpiece suspension device 16 is
According to the operation, the reciprocating movement is made between the retracted position shown by the solid line in FIG. 6 and the approach position shown by the two-dot chain line.

On the other hand, the pair of guide members 94 erected downward on the main body 92 of the traveling platform are respectively provided in a U-shaped cross section and are opposed to each other, and the elevating member 88
is movable in the vertical direction while being guided by this guide member 94. The elevating member 88 includes a frame 114 to which four wheels 112 fitted into the guide member 94 are attached, and a lower end of the frame 114 toward the opening 20 side of the plastic cabinet yh 22. A pair of mounting members 116 projecting approximately horizontally. The frame body 114 includes a bracket 7)1.
18 is fixed, and the rod 12 of the cylinder 120 disposed on the traveling base body 92 is fixed to the bracket 118.
2 is attached, the frame 114, in other words, the elevating member 8B is driven in the vertical direction between the elevating position shown by the solid line and the lowering position shown by the two-dot chain line in FIG. . That is, here, the elevating member 88, cylinder 120, etc. constitute a elevating mechanism.

Further, on the upper surface of the distal end side of the pair of mounting members 116,
A support plate 124 is fixed to each, and a gap is formed between these two support plates 124 as shown in FIG. As shown in an enlarged view in FIG. 9, on the gap side of the support plate 124, blocks 126 are fixed as sub-hanger mounting means, each having a V-groove that expands upward. The sub-hanger 90 is removably mounted on this block 126.

Here, the sub-hanger 90 is composed of an upper frame portion 128, an intermediate inclined portion 130, and a pair of lower suspension portions 132 formed in an L-shape. (2) It is mounted on the block 126. Further, on both sides of the frame portion 128, a contact plate 1 is attached to a bracket 134 fixed to the support plate 124 so that the position can be adjusted.
36 is brought into contact with the inclined portion 130.
An abutment member 142 whose position can be adjusted is brought into contact with a cylinder 140 that is attached below the intake member 116 via a bracket 138 . This results in
(2) The sub-hanger 90 mounted on the block 126 is positioned in a predetermined position, and the sub-hanger 90 is prevented from swinging when the work 14 is suspended from the suspension section 132.

Then, the sub-hanger 90 positioned in this manner is locked in a fixed position by a locking means 144 provided on the elevating member 88. Locking means 1
44 is the mounting member 11, as is clear from FIG.
The fixing member 150 is attached to a pair of pins 146 fixed to the frame member 6 via a link 148 so as to be able to move in parallel, and a cylinder 154 is attached to the frame body 114 via a bracket 152. The rod 156 of this cylinder 154 and one of the links 148 are connected by a lever 158, and the fixing member 15
According to the operation of the cylinder 154, the cylinder 154 is positioned at two positions: a fixed position shown by a solid line in FIG. 9 and a retracted position shown by a two-dot chain line.

Next, the operation of the hanger set shot blasting machine constructed as described above will be explained.

First, the workpiece suspension device 16 is placed in advance at a retracted position away from the plast cabinet 22, and its lifting member 88 is placed at a lowered position. In this state, when the workpiece 14 is transported by the workpiece transport device 12 and positioned in a predetermined state, that is, in a 90° inverted state, the workpiece suspension device 16 moves forward toward the plast cabinet 22. Made to be sub-hanger 90
The suspension part 132 of the hole 160 (
(see Figure 3). The two-dot chain line shown at the lower center of FIG. 7 shows the state at this time.

Here, the sub-hanger 90 mounted on the V-block 126 of the elevating member 88 is positioned and held in a predetermined position by the contact plate 136 and the contact member 142, and furthermore, by the fixing member 150 of the locking means 144. Because it is locked in a fixed position, the suspension part 13 of the sub hanger 90
2 is smoothly and reliably inserted into the hole 160 of the workpiece 14. The lowering position of the elevating portion +A88 is such that the suspension portion 132 of the sub-hanger 90 mounted on the elevating member 88 is in the hole 160 of the work 14 with respect to the work 14 positioned by the stopper 70 and the clamper 72. The position is set in advance so that it can be inserted into the

Subsequently, when the elevating member 88 is slightly raised and the suspension portion 132 of the sub-hanger 90 comes into contact with the upper inner surface of the hole 160, the clamper 72 of the workpiece transfer device 12 is positioned at the non-clamping position and the workpiece 14 is moved. The clamp state of is released. Then, the sub hanger 90 is the work 14.
When the lifting member 88 is raised again and positioned at the raised position with the work hanging device 16
The whole is again advanced towards the plast cabinet 22 and placed in the approach position. At this time, the lifting member 8
8 is inserted into the blast cabinet 22 through the opening 20 of the blast cabinet 22, and the tip hook portion of the hanger 18 of the shot blasting device 10 enters into the frame 128 of the sub-hanger 90. The hanger 18 shown by the two-dot chain line in FIG. 9 and the attachment part +A116 shown by the two-dot chain line below the bunker I8 in FIG. 7 both show the state at this time.

The approach position of the workpiece suspension device 16 and the raised position of the elevating member 88 are set in advance so that the positional relationship of the subhanger 90 with respect to the hanger 18 is as described above. Further, the hanger 18 is attached to the chain 36 (
(see FIG. 2), the distal end hook portion is adjusted so as to face the work suspension device 16.

In this state, when the elevating part +A88 is slightly lowered and the upper part of the frame part 128 of the sub-hanger 9o comes into contact with the tip hook part of the hanger 18, the locking means 144
The fixing member 150 is moved to the retracted position, and the subhanger 90 is released from the locked state. Subsequently, when the elevating member 88 is further lowered, the subhanger 90 is suspended from the hanger 18, and its frame portion 128 is separated upward from the V-groove of the block 126. In Figure 7,
The mounting member 116 shown by a dashed line below the hanger set shot blasting machine 18 shows its state at this time.

Thereafter, when the entire workpiece suspension device 16 is driven in a direction away from the plast cabinet 22, the sub-hanger 90 has its inclined portion 130 in the gap 1 of the support plate 124.
It is relatively detached from the elevating member 88 through the elevating member 88 .

In this state, the shot blasting device 10 is
t, the work 14 suspended from the hanger 18 via the sub-hanger 90 is intermittently sent to station positions B, C, and D as the rotary plate 24 rotates, and is placed in a predetermined plastic position as described above. processing is performed.

Then, the workpiece 14 that has been subjected to the plastic treatment returns to the station position again, and when the end hook portion of the hanger 18 is rotated by the chain 36 in a direction facing the workpiece suspension device 16, the workpiece suspension device 16 approaches. be placed in position.

At this time, the inclined part 130 of the sub-hanger 90 is inserted into the gap in the support plate 124, and in this state, the elevating member 88 is raised, so that the block 126
The frame portion 128 of the sub-hanger 90 is mounted on top. Thereafter, when the locking means 144 is activated, the locking member 150 locks the lower part of the frame 128 and the sub-hanger 9
o is fixed in position with respect to the W-K1 member 88.

Subsequently, when the elevating member 88 is moved further upward, the upper portion of the frame portion 128 of the subhanger 90 is detached from the hook portion at the distal end of the hanger I8. Next, the entire workpiece suspension device 16 is moved in a direction away from the plast cabinet 22, and when the workpiece I4 suspended on the sub-hanger 9° reaches the workpiece transfer device I2, the workpiece suspension device 16 is moved. is stopped and the elevating member 88 is lowered.

Here, the table 58 of the workpiece transfer device 12 is positioned in a vertical position when transferring the workpiece I4 to the shot blasting device 10, and its stopper 70 and clamper 72 are in a locked position and an unclamped position, respectively. It remains located at Therefore, when the elevating member 88 is lowered, the work 14 suspended from the elevating member 88 via the sub hanger 90
is brought into contact with the stopper 70 at its lower end. In this state, the clamper 72 is operated to clamp the workpiece 14 in a fixed position, and then the elevating part 88 is further lowered slightly to connect the suspension part 132 of the sub-hanger 90 and the hole 160 of the workpiece 14. The engagement is released. Subsequently, the entire workpiece suspension device 16 is retreated to the retracted position, and the suspension portion 132 of the subhanger 90 is pulled out from the hole 160 of the workpiece 14.

On the other hand, for the workpiece 14 that has been subjected to the blasting process, the table 58 is inverted and rotated to the horizontal position, the strike collar 70 and the clamper 72 are positioned at the non-locking position and the non-clamping position, respectively. From there, it is carried out to the next process via the carry-out roller conveyor 48.

In addition, in the above explanation, the operation when blasting one workpiece 14 was explained in order.
The attachment/detachment work No. 4 is carried out while another workpiece 14 is being blasted in the Shot Plus 1 apparatus 10, and every 1/4 rotation of the rotary plate 24, the post-treatment glue is removed. - The workpiece 14 is removed and a new workpiece 14 is inspected. In addition, the driving means of the workpiece suspension W16, that is, the cylinder 108°12
0.154 is controlled by a control device (not shown) that actively controls the operation of the workpiece conveyance device 12 and the shot blasting device IO, and all of the above-mentioned operations are automated. be.

As described above, according to the shot blasting machine with a set of hangers having a structure similar to that of a top stripper, the workpiece 14 transported by the workpiece transport device 12 is mechanically suspended from the hanger 18 by the workpiece suspension device 16, and Since the workpiece 14 after blasting is removed from the hanger 18, the labor burden on the worker is greatly reduced.

Furthermore, in this embodiment, since the operation of the workpiece suspension device 16 is completely automated, the workpiece suspension device 16 and the shot blasting device 10 can be easily The machining efficiency can be further improved. For this reason, such a shot blasting machine exhibits particularly excellent effects in production lines intended for mass production such as automobile parts.

In addition, in the present embodiment, the table 58 of the workpiece conveyance device 12 is configured to be reversely rotated, so that the conveyed workpiece 14 is changed in advance to a stable posture in its suspended state. Even a workpiece 14, such as a transmission, which generally has different postures during transportation and suspension, can be safely and reliably attached to and detached from the hanger 18.

Although one embodiment of the present invention has been described above, the present invention can be implemented in other embodiments as well.

For example, the shot blasting device 1 in the above-mentioned embodiment
0 stops at station positions A, B, C, and D, and processes such as blasting and air blowing are performed at separate positions, but blasting, air blowing, etc. are performed at one position. Other types of shot blasting equipment, such as those that perform sequential processing, may also be used.

In addition, in top stripping, the workpiece 1 at station position A
However, if the blasting process of the workpiece 14 is to be performed in a relatively short time, the workpiece 14 is removed and removed after the blasting process at station position A and station position B. It is also possible to configure a new workpiece 14 to be attached at the same time.

Further, when a workpiece 14 having the same conveying attitude and hanging attitude is used, the cylinder 64 for reversing and rotating the table 58, the clamper 72, the cylinder 76 for driving the clamper 72, etc. are unnecessary.

Further, the contact plate 136 for positioning the sub-hanger 90, the contact member 142, and the locking means 144 for locking the sub-hanger 90 in a fixed position are also connected to the sub-hanger 90 and the workpiece 1.
4 or when the suspended state of the workpiece 14 is stable, or when the posture of the sub-hanger 90 mounted on the lifting part 88 is relatively stable, it is necessary to provide this in particular. There is no such thing.

In addition, although not illustrated, the present invention may be modified without departing from its spirit and based on the knowledge of those skilled in the art.
Of course, it can be implemented in an improved manner.

[Brief explanation of drawings]

FIG. 1 is a front view of a hanger-set soyosotoplast machine according to an embodiment of the present invention, and FIG. 2 is a plan view of the same. FIG. 3 is a front view showing the main parts of the workpiece conveying device constituting the above-mentioned hanger set shot blasting machine. FIG. 4 is a front view showing how the stopper installed in the workpiece conveyance device shown in FIG. 3 is attached. Figures 5 and 6 are
4A and 4B are a front view and a side view, respectively, showing how a clamper is attached to the workpiece suspension device shown in FIG. 3; FIG. FIGS. 7 and 8 are a front view and a side view, respectively, with a portion cut away, showing a workpiece suspension device constituting the above-mentioned hanger set shot blasting machine. FIG. 9 is a partially enlarged view of the work suspension device shown in FIG. 7. 10 Yacht blasting device 12: Work transport device 14: Work 16: Work hanging device 18: Hanger 20: Opening 22 Niblast cabinet 86 2 Travel platform 90: Sub hanger 100: Horizontal member 102, io4: Rail 126: V block (sub hanger loading means) 144:
Locking means whistle 4 Figure 5 Figure 9 Figure 88

Claims (1)

[Claims] fi+ A workpiece conveyance device that conveys a predetermined workpiece to be blasted, and a shot blaster that blasts a workpiece suspended on a hanger in a blasting cabinet having an opening on the side of the workpiece conveyance device. a sub-hanger that suspends the workpiece on the workpiece transport device and is suspended from a hanger in the plast cabinet; The present invention is characterized by comprising: an elevating mechanism that is attached to a traveling base that is movable up and down; and a subhanger mounting means for removably mounting the sub-hanger, which is provided on the elevating mechanism. Complete hanger shot blasting machine. (2) The hanger set shot blasting machine according to claim 1, wherein the sub-hanger mounting means includes a removable locking means for locking the mounted sub-hanger in a fixed position. (3) A reversing table equipped with a clamp mechanism capable of clamping the workpiece and capable of reversing rotation is provided on the conveyance path of the workpiece conveying device, and the workpiece that has been reversed and rotated by the reversing table is The hanger set shot blasting machine according to claim 1 or 2, wherein the sub-hanger mounted on the sub-hanger mounting means of the elevating mechanism is operated as a suspension support.