JP2004203605A - Part conveyance hose, its fixing structure, and conveyance method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyance hose for smoothly conveying a part composed of a circular column-shaped part and a disc part and to provide its fixing structure and a conveyance method. <P>SOLUTION: The part 2 composed of the circular column-shaped part 3 and the disc part 4 formed in the same axial condition as the circular column-shaped part 3 is conveyed by the conveyance hose 6. A conveyance passage 7 provided in the hose 6 is composed of a channel-like space part 8 through which the circular column-shaped part 3 passes and a flat space part 9 through which the disc part 4 passes. Clamp members 18, 19 of the conveyance hose 6 are fixed to a stationary member 23, and a tip part of a positioning bolt 26 screwed into the clamp members 18, 19 bites an outer peripheral face of the conveyance hose 6. Buoyancy is generated in the part 2 in the conveyance passage 7 by conveyance air so that the part 2 can be conveyed at stable attitude and the conveyance hose 6 can be securely fixed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a component transfer hose, which is composed of a cylindrical part and a disk part formed coaxially with the cylindrical part, such as a bolt with a flange, a disk part and a cylindrical part. Parts with a shape like a rivet are to be transported.
[0002]
[Prior art]
Referring to FIG. 8, the component transfer hose 1 has a circular cross section made of a flexible synthetic resin, and a component 2 moving in the hose has a cylindrical portion 3 and a disk portion 4 integrated with each other. It has become. The component 2 moves in the transfer passage 5 of the hose 1, and the moving posture at that time is such that the longitudinal direction of the transfer passage 5 and the axis of the component 2 are in the same direction as shown by a solid line in FIG. And is conveyed by compressed air to the right in FIG.
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. H11-294638
[Problems to be solved by the invention]
In the case of the conventional technique as described above, there is a case where it is necessary to transfer the paper in the posture shown in FIG. In this case, since the part 2 must be once held in some way and then turned 90 degrees, the mechanism for that is complicated, which is not a good idea. Alternatively, as shown by a two-dot chain line in FIG. 8, when the component 2 is inclined, the tip corner of the columnar portion 3 is caught on the inner surface of the transport passage 5, which hinders smooth component transport. .
[0005]
[Means to solve the problem and its operation]
The present invention was conceived in order to solve the above-mentioned problems, and the invention according to claim 1 includes a columnar portion and a disk portion formed coaxially with the columnar portion. And a transfer passage provided in the hose is formed of a groove-shaped space portion through which the columnar portion passes and a flat space portion through which the disk portion passes. A component transfer hose characterized in that:
[0006]
With the above configuration, the columnar portion and the disk portion of the component pass through the groove-shaped space portion and the flat space portion, respectively. During this passage, the component is transported in a state where the axis of the component is orthogonal to the longitudinal direction of the hose. Therefore, when the component is a bolt with a flange or a rivet composed of a disk portion and a cylindrical portion, it is possible to supply the component to the bolting machine or the caulking machine in the same component posture at the destination. This eliminates the need for a mechanism for changing the orientation of parts, which is effective for simplifying the structure and reducing costs.
[0007]
According to a second aspect of the present invention, in the first aspect, the cross-sectional shape of the flat space portion and the groove-shaped space portion is substantially T-shaped. Since the cross-sectional shape of the part is almost T-shaped, the disk part and the cylindrical part of the part fit into the flat space and the groove-shaped space, and the part is abnormally oriented in the transport path. The paper is conveyed in a correct posture along the T-shaped conveyance path without any wobbling.
[0008]
A third aspect of the present invention is the component transfer hose according to the first or second aspect, wherein a continuous corner of the flat space portion and the groove-shaped space portion is cut off. With such a cut, the contact area between the disk portion and the inner surface of the flat space portion is reduced, so that the component smoothly slides in the transport path, and the component is smoothly transported, and an abnormal orientation during transport is performed. There is no such thing as becoming.
[0009]
According to a fourth aspect of the present invention, in the third aspect, the cut portion is an arc portion, and the radius of the arc portion is an arc formed continuously from the columnar portion of the component to the disk portion. A component transfer hose characterized in that it is set smaller than the radius of the part. Therefore, even if the component is deviated to the left or right side in the transport passage and descends downward, the component does not reach the inner surface of the transport passage from the columnar portion to the arc portion but to the flat inner surface of the groove-shaped space portion and the arc portion. Contact In this contact state, the outer peripheral surface of the columnar portion makes linear contact with the inner surface of the groove-shaped space portion, and the arc portion has a gap that gradually increases without making strict contact. Such a gap is formed because the radius of the arc portion on the component side is set to be larger than the radius of the arc portion on the transport path side. Thus, since the corners of the disk portion do not come into contact with the arc portion, it is possible to avoid a phenomenon in which the corners are caught on the inner surface of the transport passage, and the component can be smoothly transported.
[0010]
According to a fifth aspect of the present invention, there is provided a component according to any one of the first to fourth aspects, wherein the component is made of a flexible synthetic resin so that components in the transport passage can be seen through. It is a transfer hose. Because the hose is flexible, the hose can be bent and twisted, and parts can be transported while avoiding related components around the parts. Can be confirmed, so that it can be easily determined whether or not the transport state is normal.
[0011]
According to a sixth aspect of the present invention, there is provided the component transfer hose according to any one of the first to fifth aspects, wherein the cross-sectional outer shape is circular. Since the cross-sectional outer shape is circular, the material for forming the hose is smaller than that of a square cross-section or the like, which is advantageous for cost reduction and weight reduction.
[0012]
According to a seventh aspect of the present invention, a clamp member of a transfer hose having a transfer passage for parts and having a circular cross-section is fixed to a stationary member, and a tip of a positioning bolt screwed into the clamp member is connected to the transfer hose. A component transfer hose fixing structure characterized in that it is configured to bite into the outer peripheral surface of the component transfer hose. In this way, the positioning bolt is screwed into the clamp member fixed to the stationary member, and the tip end bites into the outer peripheral surface of the transfer hose, so that the transfer hose having a circular cross section that is easy to turn is securely fixed without turning. Parts can be delivered to a target location in a correct posture.
[0013]
The invention according to claim 8 is characterized in that, in claim 7, the transport passage is constituted by a groove-shaped space portion through which the cylindrical portion of the component passes and a flat space portion through which the disk portion of the component passes. This is a structure for fixing a component transfer hose. When a component having such a shape is transported, the orientation of the component at the target location of the transport must be accurately set. Therefore, by adopting the fixed structure that does not easily rotate as described above, the component feeding posture can be correctly maintained.
[0014]
The invention according to claim 9 is of a type in which a part composed of a cylindrical part and a disk part formed coaxially with the cylindrical part is transported by a transport hose, and provided on the hose. The conveying passage is composed of a groove-shaped space through which the columnar portion passes and a flat space through which the disc passes, and the groove is formed by feeding compressed air for conveyance to the components in the conveying passage. The buoyancy acts on the lower surface of the disc by air flowing through the flat space, and the buoyancy conveys the component in a state where the disc does not contact the inner surface of the flat space as much as possible. It is a transportation method. Since the air flowing through the groove-shaped space portion is blocked by the columnar portion, the air pressure acts strongly on the lower surface of the disk portion at this time. Accordingly, buoyancy acts on the lower surface of the disk portion due to the dynamic pressure of the air, and the disk portion is transported in a substantially floating state in the flat space. Due to such a phenomenon, the components are transported almost without contacting the inner surface of the transport path, so that the components are not clogged in the transport path, and the components can be transported smoothly and at a high speed.
[0015]
The above phenomenon is due to the fact that the former is higher when comparing the flow path resistance of the groove-shaped space where the columnar part is located with the flow path resistance of the flat space where the disk part is located. The buoyancy as described above is obtained. Therefore, the cross-sectional area of the flat space portion is set to be sufficiently larger than the cross-sectional area of the disk portion so that such a difference in flow path resistance is formed.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
The component 1 is the same as that described in FIG. 8, and the same reference numerals are described in FIGS. Further, the material constituting the component 1 may be iron, but here, a light alloy, that is, aluminum is used. The transfer hose 6 made of a flexible synthetic resin has a circular cross section. The synthetic resin used is urethane, nylon, Teflon, or the like, and is most preferably made of urethane so that the components in the transport passage can be seen from the outside, that is, can be seen through. It is made by extrusion molding together with a transport passage described later.
[0017]
The transport passage 7 is composed of a groove-shaped space portion 8 through which the columnar portion 3 passes and a flat space portion 9 through which the disc portion 4 passes. The groove space 8 and the flat space 9 extend in the longitudinal direction of the transfer hose 6 to form the transfer passage 7. The space shape formed by the flat space portion 9 and the groove-shaped space portion 8, that is, the cross-sectional shape of the transfer passage 7 is substantially T-shaped, and as is apparent from FIG. It is in a state of being stuck in the cross-sectional shape. As shown in FIG. 3, gaps 10 necessary for component sliding are provided on the left, right, up, and down due to the fit.
[0018]
When the component 2 is stuck in the transport path 7 in the posture shown in FIGS. 1 and 3, the lower surface of the disk portion 4 contacts the inner surface 11 of the flat space portion 9, and the columnar portion 3 has a groove-like shape. It is located in the space 8 like a suspended state with a gap 10 therebetween. A continuous corner portion of the flat space portion 9 and the groove-shaped space portion 8 is cut off to form a rounded arc portion 12. With such a cut, the contact area between the lower surface of the disk portion 4 and the inner surface 11 of the flat space portion 9 becomes small, that is, the contact area shown by the reference numeral 13 becomes small, and the component becomes small. Numeral 2 smoothly slides in the transfer passage 7 to smoothly transfer the components, and does not have an abnormal direction during the transfer. If the arc portion 12 is not formed, the width of the contact portion 13 is W1, but the width of the contact portion 13 is W2 due to the formation of the arc portion 12.
[0019]
Furthermore, even if the columnar portion 3 is shifted to the left or right, the diameter of the columnar portion 3 and the groove-shaped space are maintained so that the contact relationship between the lower surface of the disk portion 4 and the inner surface 11 of the flat space portion 9 is maintained. The width of the portion 8, that is, the size of the gap 10 is set. Further, since the thickness of the disk portion 4 and the vertical dimension of the flat space portion 9, that is, the vertical gap 10, are very small values, the component 2 is perpendicular to the paper surface of FIG. Even if it swings in the direction, the disk portion 4 does not come into contact with the inner surfaces (upper and lower inner surfaces) of the flat space portion 9 and the component 2 does not tilt in an abnormal direction.
[0020]
Note that, instead of the arc portion 12, an inclined portion as shown by a two-dot chain line in FIG.
[0021]
The embodiment shown in FIG. 5 does not have a flat lower surface below the disk portion 4 as shown in FIG. 3 and the like, but an arc portion 14 is continuous with the columnar portion 3 above the columnar portion 3. It is formed in the state where it was done. The radius of the arc portion 14 is set to be larger than the radius of the arc portion 12 on the transport path 7 side. Therefore, even if the component 2 is deviated to the right or left side in the transport passage 7 and descends downward, the component 2 is not in contact with the inner surface of the transport passage 7 but is formed in a groove-shaped space from the columnar portion 3 to the arc portion 14. 8 is in contact with the flat inner surface 15 and the arc 12. As shown in FIG. 6, this contact state is such that the outer peripheral surface of the columnar portion 3 makes a line contact with the inner surface 15 of the groove-shaped space portion 8, and the arc portion 14 gradually increases without strictly contacting. A gap 16 exists. Such a gap 16 is formed because the radius of the arc portion 14 is set to be larger than the radius of the arc portion 12. Thereby, since the corner 17 of the disk portion 4 does not contact the arc portion 12, a phenomenon in which the corner 17 gets stuck on the inner surface of the transport passage 7 can be avoided, and the component can be smoothly transported.
[0022]
Further, as shown by a two-dot chain line in FIG. 6, even if the lower surface of the disk portion 4 is a flat surface, it does not come into contact with the inner surface 11 of the flat space portion 9, so that the contact area increases. Therefore, the parts 2 can be smoothly transported.
[0023]
The dimensions of each part in this embodiment are as follows. The diameter of the cylindrical part 3 of the part 2 is 8 mm, the diameter of the disk part 4 is 11.2 mm, the length of the whole part 2 is 11.0 mm, the radius of the arc part 14 is 2.8 mm, and the radius of the arc part 12 is 2.3 mm, the width of the groove-shaped space 8 is 9.2 mm, the width of the flat space 9 in the left-right direction is 13.2 mm, the space dimension of the flat space 9 in the vertical direction is 2.5 mm, The thickness of the outer peripheral edge is 0.7 mm, and the gap 10 between the above-described portions is 0.6 mm to 1.0 mm.
[0024]
Due to the dimensions described above, that is, the gap 10, even if the component 2 is shifted up, down, left, or right, a part of the component 2 is smoothly transported without strongly contacting the inner surface of the transport path 7. Further, by feeding the compressed air into the transport passage 7 and transporting the component 2, an air layer is easily interposed in the gap 10, and the component 2 does not always contact the inner surface of the transport passage 7, As a result, smoother component conveyance is realized. As is clear from FIGS. 3 and 5, it is an important point of the air layer interposition in the gap 10 that the transport passage 7 and the cross-sectional shape of the component 2 are substantially similar to each other. . Because of the similar shape, the gap 10 becomes substantially uniform over the entire area around the component 2, so that the air layer is easily formed over the entire area around the component 2.
[0025]
In the embodiment shown in FIG. 7, buoyancy is given to the component 2 by providing a difference in air flow path resistance between the groove-shaped space portion 8 and the flat space portion 9. As is clear from FIG. 7, the gap 10 between the outer peripheral surface of the columnar portion 3 and the inner surface 15 of the groove-shaped space portion 8 is larger than the gap in the flat space portion 9 formed near the disk portion 4. It is set very narrow. Therefore, the air flowing through the groove-shaped space portion 8 is blocked by the columnar portion 3, and at this time, the air pressure acts strongly on the lower surface (the circular arc portion 14 in this case) of the disk portion 4. Therefore, buoyancy acts on the lower surface of the disk portion 4 due to the dynamic pressure of the air, and the disk portion 4 is transported in a substantially floating state in the flat space portion 9. Due to such a phenomenon, the component 2 is transported almost without contacting the inner surface of the transport path 7, so that the component 2 is not clogged in the transport path 7, and the component can be transported smoothly and at a high speed.
[0026]
The above phenomenon can be seen from the comparison between the flow path resistance of the grooved space 8 where the columnar section 3 is located and the flow path resistance of the flat space 9 where the disk section 4 is located. The buoyancy as described above is obtained by the high Therefore, the cross-sectional area of the flat space portion 9 is set to be sufficiently larger than the cross-sectional area of the disk portion 4 so that such a difference in flow path resistance is formed. With such a configuration, since the flow velocity of the air in the flat space portion 9 is large, the pressure in that portion becomes low. On the other hand, since the flow velocity of the air in the groove-shaped space portion 8 is small, the pressure in that portion increases. Due to this pressure difference, a lifting force is generated to lift the component 2 to the flat space portion 9 side, and the component 2 can be smoothly transported while minimizing the contact between the component 2 and the inner surface of the transport passage 7. In particular, when the component 2 is made of a light alloy such as aluminum, it is most suitable for the above-mentioned high levitation transport. From the opposite viewpoint, if the light alloy component 2 is injected with compressed air, it is quickly transported due to its light weight and tends to be in an abnormal transport position on the way, as described above. By taking into account the balance of the flow path resistance and the like between the groove-shaped space portion 8 and the flat space portion 9, even a light alloy component can be transported in a normal posture.
[0027]
9 and 10 show a fixing structure of the transfer hose 6 having a circular cross section. The pair of clamp members 18, 19 are formed with concave grooves 20, 21 having an arc-shaped cross section that exactly match the outer peripheral surface of the transfer hose 6. A fixing piece 22 is provided integrally with one of the clamp members 18, and is firmly connected to a stationary member 23 with fixing bolts 24. The transfer hose 6 is strongly held by the concave grooves 20 and 21 by integrating the two clamp members 18 and 19 with the connecting bolt 25. A positioning bolt 26 is provided to stop the transfer hose 6 from rotating. The positioning bolt 26 is screwed into the clamp member 18 so that the tip end bites into the outer peripheral surface of the transfer hose 6. For this purpose, the tip of the positioning bolt 26 is a sharp needle-like portion 27 like a needle tip.
[0028]
When attaching the clamp members 18 and 19 to the transfer hose 6, the positioning bolt 26 is retracted in advance, and the transfer hose 6 is rotated in a predetermined direction with the coupling bolt 25 tightened to a temporary tightening degree. Then, the positioning bolt 26 is tightened, the needle-shaped portion 27 is cut into the outer peripheral surface of the transfer hose 6, the rotation of the transfer hose 6 is stopped, and finally, the connection bolt 25 is fully tightened to complete the mounting. As described above, the structure is such that the steps of temporary tightening by the connecting bolt 25, subsequent rotation adjustment of the transfer hose 6, further stopping by the positioning bolt 26, and finally final tightening of the clamp members 18 and 19 can be performed. Even with the hose 6, accurate setting of the rotation direction is realized.
[0029]
In the case of FIG. 10, a cylindrical portion 28 is provided on the clamp member 19, and after the transfer hose 6 is pushed into the cylindrical portion 28, the other clamp member 18 is assembled in the same manner as in FIG. In this case, the positioning bolt 26 is arranged on the side of the clamp member 19. A metal guide member 29 in which the transport passage 7 is formed is welded to an end of the clamp member 19, and the guide member 29 is firmly fixed to the stationary member 23. The transfer passage 7 of the transfer hose 6 and the transfer passage 7 of the guide member 29 are continuous so that the component 2 can move smoothly. Reference numeral 30 denotes a cover plate of the guide member 29, which is connected to the guide member 29 by bolts (not shown).
[0030]
The guide member 29 is connected to the component holding device 32 of the component processing device 31, as shown in FIG. 4 is an apparatus for caulking the rivet 2 to a sheet metal part 33, and has a lower mold 34 and an upper mold 35. As is clear from FIG. 4, since the conveying posture of the component 2 and the posture of the component 2 in the component processing device 31 are the same direction, a special device for changing the direction of the component is not required, and equipment economy is reduced. It is convenient.
[0031]
【The invention's effect】
According to the present invention, the cylindrical portion and the disk portion of the component pass through the groove-shaped space portion and the flat space portion, respectively. During this passage, the component is transported in a state where the axis of the component is orthogonal to the longitudinal direction of the hose. Therefore, when the component is a bolt with a flange or a rivet composed of a disk portion and a cylindrical portion, it is possible to supply the component to the bolting machine or the caulking machine in the same component posture at the destination. This eliminates the need for a mechanism for changing the orientation of parts, which is effective for simplifying the structure and reducing costs.
[0032]
A clamp member of a transfer hose having a transfer passage for parts and having a circular cross-sectional outer shape is fixed to a stationary member, and a tip end of a positioning bolt screwed into the clamp member is configured to bite into an outer peripheral surface of the transfer hose. This is a fixing structure for a component transfer hose. In this way, the positioning bolt is screwed into the clamp member fixed to the stationary member, and the tip end bites into the outer peripheral surface of the transfer hose, so that the transfer hose having a circular cross section that is easy to turn is securely fixed without turning. Parts can be delivered to a target location in a correct posture.
[0033]
A part formed of a cylindrical part and a disk part formed coaxially with the cylindrical part is transported by a transport hose, and the transport path provided in the hose is provided with the cylindrical part. Is formed of a grooved space through which the disc passes and a flat space through which the disc passes.By blowing compressed air for conveyance onto the components in the conveyance passage, the air flowing through the grooved space forms A buoyancy is applied to the lower surface, and the buoyancy causes the disc to be conveyed in a state where the disc does not contact the inner surface of the flat space as much as possible. Since the air flowing through the groove-shaped space portion is blocked by the columnar portion, the air pressure acts strongly on the lower surface of the disk portion at this time. Therefore, the floating pressure acts on the lower surface of the disk portion due to the dynamic pressure of the air, and the disk portion is transported in a substantially floating state in the flat space portion. Due to such a phenomenon, the components are transported almost without contacting the inner surface of the transport path, so that the components are not clogged in the transport path, and the components can be transported smoothly and at high speed.
[Brief description of the drawings]
FIG. 1 is an embodiment of the present invention and is a cross-sectional view of a transfer hose.
FIG. 2 is a side view of a transfer hose.
FIG. 3 is a diagram illustrating a relationship between a conveyance path and components.
FIG. 4 is a side view illustrating a state in which the transport path is connected to the component processing apparatus.
FIG. 5 is a cross-sectional view showing another embodiment.
FIG. 6 is a partially enlarged view of that of FIG. 5;
FIG. 7 is a cross-sectional view showing another embodiment.
FIG. 8 is a sectional view showing a conventional transfer hose.
FIG. 9 is a view showing a fixing structure of a transfer hose.
FIG. 10 is a view showing a fixing structure of another transfer hose.
[Explanation of symbols]
2 parts 3 columnar part 4 disk part 6 transfer hose 7 transfer passage 8 grooved space 9 flat space 11 inner surface 12 arc portion 13 contact portion 14 arc portion 15 inner surface 18, 19 clamp member 26 positioning bolt

Claims (9)

A part formed of a cylindrical part and a disk part formed coaxially with the cylindrical part is transported by a transport hose, and the transport path provided in the hose is provided with the cylindrical part. A component-conveying hose, comprising a groove-shaped space through which the air passes and a flat space through which the disk passes. 2. The component conveying hose according to claim 1, wherein a cross-sectional shape formed by the flat space portion and the groove-shaped space portion is substantially T-shaped. 3. The component conveying hose according to claim 1, wherein a continuous corner of the flat space and the groove-shaped space is cut off. In claim 3, the cut portion is an arc portion, and the radius of the arc portion is set smaller than the radius of the arc portion continuously formed from the columnar portion of the component to the disk portion. A component transfer hose. 5. The component transfer hose according to claim 1, wherein the component transfer hose is made of a flexible synthetic resin so that components in the transfer passage can be seen through. The component conveying hose according to any one of claims 1 to 5, wherein the cross-sectional outer shape is circular. A clamp member of a transfer hose having a transfer passage for parts and having a circular cross-sectional outer shape is fixed to a stationary member, and a tip end of a positioning bolt screwed into the clamp member is configured to bite into an outer peripheral surface of the transfer hose. A component transfer hose fixing structure, characterized in that: 8. The component transfer hose fixing structure according to claim 7, wherein the transfer passage comprises a groove-shaped space through which the cylindrical portion of the component passes and a flat space through which the disc portion of the component passes. A part formed of a cylindrical part and a disk part formed coaxially with the cylindrical part is transported by a transport hose, and the transport path provided in the hose is provided with the cylindrical part. Is composed of a grooved space through which the disc passes and a flat space through which the disc passes.By supplying compressed air for conveyance to the components in the conveyance passage, the disc flows with air flowing through the grooved space. A buoyancy is applied to a lower surface of the portion, and the buoyancy causes the component to be conveyed in a state where the disk portion does not contact the inner surface constituting the flat space as much as possible.

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