JP2525246Y2 - Connecting structure of rodless cylinder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting a slider moved by a rodless cylinder and a carrier guided by a guide member in a direction parallel to the moving direction of the slider. In the specification of the present application, when the carrier is positioned above the slider, the upper surface will be described as the upper surface, the lower surface as the lower surface, and the horizontal surface as the side surface. However, the present invention is not limited to this, and the carrier may be positioned below the slider.

[0002]

2. Description of the Related Art As shown in FIG. 3, a magnet type rodless cylinder 1 has an inner moving body 7 composed of an inner magnet array 5A and the like attached to a piston shaft 3 enclosed in a cylinder tube 2, and a slider 10 inside. The outer magnet row 5 in which the inner magnet row 5A is mounted so as to be bent via the cylinder tube 2
B, etc., and an outer moving body 9 made of
A slider 5 is moved in the axial direction of the cylinder tube 2 by attracting each other by the magnetic force of A and 5B and transmitting the movement of the inner moving body 7 reciprocating in the cylinder tube 2 to the outer moving body 9 by compressed air. Has become. Also, in a slit type rodless cylinder, the slider is moved in the axial direction of the cylinder tube by transmitting the movement of the inner moving body reciprocating in the cylinder tube to the outer moving body. When working with the rodless cylinder 1 configured as described above, a work (not shown) may be directly placed on the slider 10 to perform the work. In this case, the weight of the work is directly reduced to the slider 10. , The magnitude of the load is extremely limited, and the applicable range becomes extremely small.
For the above reasons, as shown in FIG.
A method of placing a work (not shown) on a carrier 14 movably guided by a guide or a means of placing a work on a carrier movably guided by a linear guide is adopted. Are connected by a connection bracket. As a conventional connection fitting, a first conventional art in which an engagement pin is attached to both side surfaces on a side orthogonal to a moving direction of a slider and an engagement groove of a fork mount fixed to a carrier is fitted to the engagement pin. Example, the second conventional example in which a pair of engaging pieces for sandwiching the slider back and forth in the moving direction is provided on the metal fitting fixed to the carrier, or the engaging piece of the metal fitting fixed to the carrier is provided above the slider. A third conventional example in which an engaging recess is engaged is known.

[0003]

However, in the first conventional example, since the engaging pins are respectively mounted on both side surfaces of the slider, the centering is troublesome when the engaging pins on both sides are mounted. This requires work, increases the cost of processing and assembly for mounting the engagement pin, and requires a large thickness for mounting the engagement pin on the side wall of the slider. Further, in the second conventional example, since a pair of engaging pieces for sandwiching the slider back and forth is provided on the metal fitting fixed to the carrier, the length of the metal fitting provided on the carrier in the moving direction becomes longer, and the stroke of the carrier is reduced. In addition to the restriction, there is a problem that the contact position of the engagement piece with the slider fluctuates to cause an operating spot.
Further, in the third conventional example, since the engaging piece of the metal fitting fixed to the carrier is engaged with the engaging concave portion of the slider, the slider needs a bulk to process the engaging concave portion, so that the slider is required. In addition to the size increase, there is a problem that an abutment position of the engaging portion fluctuates and an operating spot is generated.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a slider which is moved by a rodless cylinder and a carrier which is guided by a guide member in a direction parallel to the moving direction of the slider. In the connection structure for connecting, with the carrier positioned above the slider, a pin support is attached to the upper surface of the slider, and the side of the side of the slider that is orthogonal to the slider movement direction is attached to both ends of the pin support. Are provided integrally with each other with a predetermined gap,
A connection pin insertion hole in a direction perpendicular to the slider movement direction is provided in those holding portions, a seat plate is inserted into a gap between the side surface of the slider and the holding portion, and the connection pin insertion hole is passed through the seat plate. A projecting connecting pin is provided integrally, and a vertical pressing surface is provided on both sides of the tip of the connecting pin, and a fork mount attached to the lower surface of the carrier is provided with a predetermined gap to the side of the holding portion of the pin support. It is characterized in that a hanging leg is provided, and an elongated hole in the vertical direction, in which a connecting pin is fitted to the leg and is engaged with the pressing surface, is provided so that the lower side is opened.

[0005]

[Function] Before attaching the pin support to the slider, insert the connecting pin from the inside into the connecting pin insertion hole of the pin support and align the seat plate with the holding part, and then attach the pin support to the upper surface of the slider, The plate is inserted into the gap between the holding portion and the side surface of the slider and held by the slider.
When the pin support is mounted on the upper surface of the slider in this manner, the connecting pins are centered according to the positions of the connecting pin insertion holes, and the work of centering the connecting pins on both sides can be omitted.
After that, the long hole of the fork mount attached to the carrier is fitted to the connecting pin and engaged with the pressing surface, but the connecting pin is rotatable so that the pressing surface of the connecting pin is easy to the edge of the long hole. Will be hit. The connecting pins on both sides hold the seat plate by fitting it into the gap, so that the thickness of the side wall of the slider can be reduced and the slider can be reduced in size, and the number of processing points on the slider can be reduced. When transmitting the thrust of the slider to the carrier, the pressing surface of the connecting pin held on both sides of the slider is transmitted by contacting the edge of the long hole of the fork mount, so there is no twisting phenomenon at the contact part , The thrust can be smoothly transmitted, and the durability of the contact portion can be improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shows an example in which the present invention is applied to a magnet type rodless cylinder 1. FIG. FIG. 3 shows the internal structure. Inside the cylinder tube 2, a yoke 4 and a magnet 5 are alternately fitted to a piston shaft 3 in a predetermined order, and are fixedly fastened by a piston 6. 7 is enclosed. The inner moving body 7 reciprocates a predetermined stroke while the inner wear ring 8 slides on the inner peripheral surface of the cylinder tube 2 by alternately supplying compressed air from ports 17 provided in end caps 16 at both ends. Do. The outer moving body 9 has the yoke 4 and the magnet 5 alternately fitted in the above-described predetermined order on the inner peripheral surface of the slider 10 fitted to the cylinder tube 2, and the outer ring 9 holds the outer wear ring 13. And a scraper holder 12 for holding the scraper. The inner moving body 7 and the outer moving body 9 are physically combined integrally by the magnetic force of the magnet 5, and when the inner moving body 7 moves as described above, at the same time, the outer moving body 9 also has the outer wear ring 13. It moves while sliding on the outer peripheral surface of the cylinder tube 2. If an eccentric load or a bending moment is generated on the slider 10 when the outer moving body 9 moves, problems such as abrasion of the outer wear ring 13 occur. Further, since the cylinder tube 2 is made of a thin non-magnetic material such as stainless steel, deformation may be considered in some cases. In FIG. 1, reference numeral 14 denotes a carrier movably guided by a guide rod 15 serving as a guide member, on which a work (not shown) is mounted and transferred. The carrier 14 and the slider 10 are connected by a connection fitting 100.

The connection fitting 100 comprises three main parts: a pin support 101 attached to the slider 10, a connection pin member 102 held by the pin support 101, and a fork mount 103 attached to the carrier 14. ing. First, the pin support 101 will be described.
As shown in FIGS. 1 and 2, the pin support 101 includes a mounting portion 104 mounted on the upper surface of the slider 10 and a pair of holding portions 1 hanging down from left and right ends of the mounting portion 104.
And the inner dimensions L of the both holding portions 105 are set so as to be larger than the lateral width L1 of the slider 10 by a predetermined dimension. When attached to the upper surface of the slider 10, the side 10 of the slider 10
A predetermined gap is provided between A and the holding portion 105, as indicated by χ. Further, a connecting pin insertion hole 107 having a horizontal axis S1 orthogonal to the axis S of the cylinder tube 2 when the pin support 101 is attached to the slider 10 as described above is formed in the holding portion 105. In addition, the mounting portion 104 is cut off at an intermediate portion between the screws 106 to form a relief 108 for avoiding interference with the mounting portion of the fork mount 103.

As shown in FIGS. 1 and 2, the connecting pin member 102 comprises a rectangular seat plate 109 and connecting pins 110 projecting from the seat plate 109 at right angles. The connecting pin 110 is provided with a pressing surface 111 in a vertical direction by cutting off both sides of the other end portion except for a base portion of a portion corresponding to a substantially thickness of the pin support 101. Seat plate 1
09 is inserted into the gap は between the pin support 101 and the slider 10 prior to the mounting of the pin support 101, and the base of the connecting pin 110 is rotatably penetrated through the connecting pin insertion hole 107 of the pin support 101. ing.

Next, the fork mount 103 will be described. As shown in FIGS. 1 and 2, the fork mount 103 is integrally formed with leg pieces 113 hanging down to the side of the holding portion 105 at both ends of a connecting portion 112 fixed to the lower surface of the carrier 14. Is provided. The connecting portion 112 may be divided into two parts on the left and right as conventionally known. The dimension L3 between both sides between both leg pieces 113 is set to be larger than the width L2 of the pin support 101 by a predetermined dimension. The connecting piece 1 is attached to the leg 113.
An elongated hole 114 in the up-down direction in which the pressing surface 111 is engaged with the fitting 10 is formed so that the lower side is opened. The fork mount 103 configured as described above has a long hole 114
Is fitted into the connecting pin 110 and overlapped with the pin support 101, and the connecting portion 112 is attached to the carrier 14.
The inner dimension L3 between the leg pieces 113 is as described above, so that there is a gap indicated by # 1 between the leg piece 113 and the holding portion 105 of the pin support 101. Have been.

The connecting fitting 100 of the present embodiment is configured as described above. When a work (not shown) is mounted on the carrier 14 and the rodless cylinder 1 is operated, the reciprocating movement of the inner moving body 7 causes the reciprocating movement. The movement of the slider 10
Thrust is transmitted from the pin support 101 to the fork mount 103 via the connecting pin member 102, and the carrier 14 is moved to convey the work to a predetermined position. The connecting pin 110 is rotatably inserted into the connecting pin insertion hole 107 formed in the pin support 101 so as to have a horizontal axis orthogonal to the axis S of the cylinder tube 2 as described above. Since the thrust is transmitted on the second axis S, it is possible to prevent the bending moment from being generated in the slider 10 and to hold the outer moving body 9 concentrically with the cylinder tube 2 so that the slider 10 can be moved smoothly. it can. Further, since the transmission of thrust is performed on the plane between the pressing surface 111 of the connecting pin 110 and the elongated hole 114, not only efficient transmission is performed but also the connecting pin 110 and the fork mount 10 can be used for a long time.
3 can reduce the wear at the contact point and stabilize the transmission of thrust.

Further, the connecting pin member 102 has a seat plate 109, which is used to hold the pin support 101.
Since it is in pressure contact with the inside of the slider 5, it supports a bending moment acting on the connecting pin member 102 when transmitting thrust, and prevents the bending moment from acting on the slider 10. Also, since the seat plate 109 is assembled with the slider 10 and the holding portion 105 interposed therebetween, there is no need to screw the seat plate 109 to the slider 10, and the thickness of the side wall of the slider 10 can be reduced, and the overall size is reduced. Can be. Further, since the connecting pin 110 is rotatable as described above,
This part acts like a kind of joint to facilitate the operation.

Further, the connecting fitting 100 is provided with a pin support 10.
Connecting pin insertion hole 107 formed in one pair of holding portions 105
When the pin support 101 is attached to the slider 10, the axis S 1 is positioned in a horizontal direction orthogonal to the axis S of the cylinder tube 2.
The mounting of 01 causes the connection pin 110 to be centered, and the centering operation can be omitted altogether. In addition, since it is a floating connection in which a gap # 1 is provided between the pin support 101 and the fork mount 103 and the connection pin 110 is engaged with the long hole 114, the pin support 101 and the fork mount 103 move within a predetermined range vertically and horizontally in FIG. It is possible to absorb the error of the mounting dimension within this range, and also allow the rotation of the slider 10 within the predetermined range, so that the centering adjustment within this range is unnecessary. The relief 108 in the figure shortens the mounting interval with the carrier 14 as much as possible to effectively transmit the thrust. The connection fitting of the present invention can be similarly applied to a slit type rodless cylinder.

[0013]

[Effect of the Invention] In the present invention, when the pin support is mounted on the upper surface of the slider, the connection pin is centered according to the position of the connection pin insertion hole, and the work of centering the connection pins on both sides can be omitted. Assembly work can be simplified. In addition, since the connection pin is held by inserting the seat plate into the gap between the slider side and the holding part of the pin support, the thickness of the side wall of the slider can be reduced, and the connection pin mounting structure can be simplified. And the manufacturing cost can be reduced. In addition, since the connecting pin is rotatable so that the pressing surface of the connecting pin comes into contact with the edge of the long hole, the twisting of the contact portion can be prevented, and the thrust can be transmitted smoothly, and the contact can be achieved. The durability of the part can be improved.

[Brief description of the drawings]

FIG. 1 is a partial front view.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a front view of a rodless cylinder shown partially cut away.

[Explanation of symbols]

1 rodless cylinder, 10 slider, 14 carrier, 15 guide rod (guide member), 101
Pin support, 103 fork mount, 105 holder, 107 connecting pin insertion hole, 109 seat plate, 110
Connecting pin, 111 pressing surface, 113 leg piece, 114
Long hole

Claims (1)

(57) [Scope of request for utility model registration] In a connection structure for connecting a slider moved by a rodless cylinder and a carrier guided by a guide member in a direction parallel to the direction of movement of the slider, in a state where the carrier is positioned above the slider. A pin support is attached to the upper surface of the slider, and both ends of the pin support are integrally provided with holding portions that hang down with a predetermined gap on a side of a side surface of the slider that is orthogonal to the slider moving direction, A connection pin insertion hole in a direction perpendicular to the slider movement direction is provided in those holding portions, a seat plate is inserted into a gap between the side surface of the slider and the holding portion, and the connection pin insertion hole is passed through the seat plate. Protruding connecting pins are provided integrally, and vertical pressing surfaces are provided on both sides of the tip of the connecting pins, and attached to the lower surface of the carrier. The fork mount is provided with a leg that hangs at a predetermined gap to the side of the holding portion of the pin support, and the connecting pin is fitted to the leg and the lower hole in the vertical direction is engaged with the pressing surface. A connecting structure for a rodless cylinder, wherein the connecting structure is provided so that the side is open.