JP5440982B2 - Parts distribution device - Google Patents

Description

  The present invention relates to a component sorting apparatus for transferring a component that has entered a standby position of a guide passage from an introduction passage to two target locations along the guide passage from the standby position.

  Japanese Examined Patent Publication No. 07-090893 describes a component supply control device for transferring a component that has entered a standby position of a guide passage from an introduction passage to one target location along the guide passage from the standby position. Yes. In the technique described here, a part stopped at a standby position is pushed out in one direction by a pressing piece that advances and retreats with an air cylinder.

Japanese Patent Publication No. 07-090893

  Since the technology described in the above-mentioned patent document pushes a component stopped at the standby position in one direction with a pressing piece that advances and retreats with an air cylinder, the moving direction of the component is limited to only one direction. Since the required stroke of the air cylinder requires a length equivalent to the moving distance of the parts, it was difficult to reduce the size of the device.

  The component sorting apparatus of the present invention is provided to solve the above-mentioned problems, and it is intended to reliably sort components in two directions and to minimize the operating distance of the sorting drive means. To do.

The invention of claim 1, wherein, in the form stuff to shift to the target position along said guide path components that have entered from the inlet passage to the standby position of the guide passage from the standby position, the component is at least the head and shaft portion The introduction passage and the guide passage have a sliding surface on which the lower surface of the head slides and a passage space portion through which the shaft portion passes, and the guide passage has two elongated and straight guides It is comprised by arrange | positioning a member in parallel, The said passage space part is arrange | positioned between both guide members, The said target location is the 1st arrange | positioned at the edge part of the guide path of one direction side from a standby position. Advancing / retreating operation is performed by the advancing / retreating driving means provided at two locations, the target location and the second target location arranged at the end of the guide path on the opposite side of the first location from the standby position. Pressing member for, together with being disposed in said guide passage between said second target site or between the waiting position of the first object position and the standby position, the standby at the standby position at both ends of the pressing member A cross section in which a pressing surface is formed to move the component being moved to either the first target location or the second target location while pressing the shaft portion of the component, and the two guide members are integrated The slide member is fitted in the U-shaped rail member in a slidable state, the pressing member is fixed to the slide member, and the advance / retreat driving means is coupled to the end of the rail member. This is a component sorting apparatus.

  A pressing member that is disposed at two locations in a positional relationship in which the first target location and the second target location are opposed to each other, and that moves forward and backward by the advance / retreat driving means, is between the standby position and the first target location or a standby position. A pressing surface that is disposed in the guide path between the second destination locations and moves the parts waiting at the standby positions at both ends of the pressing member to either the first destination location or the second destination location. Is formed. For this reason, when the pressing member moves to the first destination location, the part whose one pressing surface is waiting at the standby position is moved to the first destination location. Subsequently, when the pressing member moves to the second destination location side, the next part waiting on the standby position on the other side of the pressing member is moved to the second destination location.

  Accordingly, the parts positioned at the standby position are alternately moved to the first target location and the second target location by the pressing surfaces arranged on both sides of the pressing member. Therefore, it is possible to obtain an efficient operation with no movement of the pressing member. The target location is a first target location arranged at an end portion of the guide passage on one side from the standby position, and an end portion of the guide passage on the other direction side opposite to the first target location from the standby position. Therefore, the movement path of the pressing member can be made straight and simple, and a smooth sorting operation can be obtained.

  Further, since the pressing member is disposed in the guide path between the standby position and the first target location or between the standby position and the second target location, the length of the pressing member, that is, the distance between the two pressing surfaces. By lengthening the distance, it becomes possible to shorten the advance / retreat operation distance of the advance / retreat driving means according to the lengthened distance, which is effective for downsizing of the advance / retreat drive means.

  In other words, even if the distance between the first target location and the second target location is increased, the advance / retreat operation distance of the advance / retreat driving means may be about half of that, which is suitable for downsizing. For example, the part located at the standby position is held by the chuck mechanism and moved to the first target position, and then the next part waiting at the standby position after the chuck mechanism is returned is held again. If it is moved to the target location, the movement distance applied to the chuck mechanism is the distance between the first target location and the second target location, and the advance / retreat operation distance of the advance / retreat drive means is remarkably increased.

Wherein the length of the guide passage from the standby position to the first target site, the length of the guide passage from the standby position to the second target site is the same length, the length of the moving direction of the pressing member Is set slightly shorter than each of the above lengths .

  The length of the guide path from the standby position to the first destination and the second destination is the same, and the length of the pressing member in the advancing / retreating direction is slightly shorter than each of the lengths. Since both the pressing surfaces of the pressing member having such a length are alternately moved to the first destination location side or the second destination location side, the distance for moving the component from the standby position to the first destination location And the distance which moves components from a standby position to a 2nd destination location becomes the same length. Accordingly, the advancing / retreating operation distance of the advancing / retreating drive unit can be the same length in the advancing direction and the retreating direction, and can be about ½ of the distance between the first target location and the second destination location. As a result, the length of the advance / retreat driving means can be shortened, which is effective for downsizing of the apparatus.

One of the pressing surfaces is a positioning surface that presses a part positioned at the first target location or the second target location against an end of the guide passage, and positioning is performed by the positioning surface. A positioning member that presses a part located at the second destination location or the first destination location opposite to the first destination location or the second destination location to the end of the guide passage is externally provided. It was configured to enter the guide passage .

  With such a configuration, the component is pressed against the end of the guide passage, which is one target location, by the positioning surface, so that the stop position of the component at this location is accurately set. In addition, the positioning member enters the end portion of the guide passage, which is the other target location, from the outside, and the components are positioned. In this way, the pressing surface functions as a positioning surface at one target location, and the positioning member entering from the outside operates at the other target location, so that the positioning member entering from the outside is used only on one side. Since the pressing surface performs the positioning function on the side, it is effective for simplifying the structure.

When parts waiting in the waiting position is moved to the first target site and the second target site by the pressing member, the regulating member for preventing the components from the inlet passage to the standby position enters A regulating surface is provided integrally with the pressing member, and the regulating member is configured to stop parts entering from the introduction passage .

  In this way, since the pressing member is provided with a regulating member that prevents the part from entering the standby position from the introduction path when the part moves to the first destination or the second destination, the introduction path It is prevented that the components that have entered from the side interfere with the lateral surface of the pressing member, and a smooth movement operation of the pressing member is obtained.

The component is a shaft-shaped component having at least a head portion and a shaft portion, and the introduction passage and the guide passage include a sliding surface on which a lower surface of the head slides and a passage space portion through which the shaft portion passes .

  Since the shaft-shaped component having at least the head and the shaft portion is supported by the sliding surface and the shaft portion passes through the passage space portion, the component moves in the introduction passage and the guide passage in a suspended state. . As a result, it is possible to smoothly reach the first destination and the second destination in a state where the component is suspended.

In the type in which a part that has entered the standby position of the guide passage from the introduction passage is transferred from the standby position to the target location along the guide passage, the target location is an end portion of the guide passage on one side from the standby position. The first destination location arranged at the second position and the second destination location located at the end of the guide path on the opposite side of the first destination location from the standby position, are advanced and retracted. A pressing member that moves forward and backward by the driving means is disposed in the guide path between the standby position and the first destination location or between the standby position and the second destination location, and both ends of the pressing member. A pressing surface for moving a part waiting at the standby position to either the first target position or the second target position is formed, and the length of the guide path from the standby position to the first target position is formed. Any one of the lengths of the guide passages from the standby position to the second destination location is set short, and the length of the pressing member in the advancing / retreating direction is set slightly shorter than the shortened length. It is.

  In this invention, one of the length of the guide passage from the standby position to the first destination location and the length of the guide passage from the standby location to the second destination location is set short, and the advancing / retreating direction of the pressing member The length of is different from the invention of claim 2 in that the length is set slightly shorter than the shortened length. The length of the pressing member in the advancing / retreating direction is set to be slightly shorter than the shorter length from the standby position to any one of the target locations. For this reason, when the length from the standby position to one target location is longer than the length from the standby position to the other target location, only this length is added to the operation length of the advance / retreat driving means. As a result, it is possible to reliably reach the part to the farther target location. In order to add such an operating length to the advancing / retreating drive means, for example, in the case of an air cylinder, the operating length may be increased by a required amount. In addition, in the case of an electric motor that converts rotational motion into a forward / backward stroke, the length added to the forward / backward drive means can be accurately set by setting the relationship between the rotational speed and the stroke in advance.

It is the top view of this apparatus, sectional drawing of each part, and a partial perspective view. It is a simple operation | movement figure which shows the movement state of components. It is a top view which shows the state in which components are positioned in the target location. It is the top view and sectional drawing of a control member. It is the top view and sectional drawing which show the stopper mechanism of components. It is a side view which shows this apparatus and a robot apparatus. It is a side view, sectional drawing, and perspective view in the case of distributing other parts. It is a simplified side view when both distribution distances differ.

  Next, a mode for carrying out the component sorting apparatus of the present invention will be described.

  1 to 6 show a first embodiment of the present invention.

  First, components in the first embodiment will be described.

  The component in Example 1 is an iron bolt 1 as shown in FIG. The bolt 1 is composed of a head member 2 and a shaft portion 3 in which a male screw is cut. The head member 2 includes a head 4 having a hexagonal shape and a circular flange portion 5 concentric with the shaft portion 3. The dimensions of each part of the bolt 1 are such that the diameter of the flange portion 5 is 22 mm, the maximum diameter of the head 4 having a hexagonal shape is 14 mm, the diameter of the shaft portion 3 is 8 mm, and the length of the shaft portion 3 is 22 mm.

  Next, the introduction passage and the guide passage will be described.

  The entire device is indicated by reference numeral 100. An introduction passage 7 is formed between the two conductive members 6 by arranging two elongated and straight introduction members 6 in parallel. 1C is a cross-sectional view taken along the line C-C in FIG. 1A, and both introduction members 6 are integrated by a joining member 8 by welding or the like. Reference numeral 9 indicates a welded portion. As shown in FIG. 5C, the bolt 1 moves while being suspended from the introduction member 6, and the lower surface of the flange portion 5 slides on the sliding surface 10 formed on the upper surface of the introduction member 6. The portion 3 passes through the introduction passage 7 which is a passage space portion.

  In the bolt 1, the lower surface of the flange portion 5 slides on the sliding surface 10 of the introduction member 6, and the shaft portion 3 passes through the introduction passage 7, so that the introduction passage 7 passes through the head member 2. This means a passing space including a passing space portion through which the space portion and the shaft portion 3 pass.

  The apparatus main body 11 has an elongated shape and is provided with a guide passage 12. The guide passage 12 has a structure similar to that of the introduction passage 7. That is, the guide passage 12 which is a passage space portion is formed between the two guide members 13 by arranging two elongated and straight guide members 13 in parallel. A rail member 14 having an elongated U-shaped cross section is disposed in an upwardly opened state, and both guide members 13 are integrated by welding or the like. Reference numeral 15 denotes a welded portion. The bolt 1 moves while being suspended from the guide member 13. The lower surface of the flange portion 5 slides on a sliding surface 20 formed on the upper surface of the guide member 13, and the shaft portion 3 passes through the guide passage 12. It is like that. The apparatus main body 11 is fixed by fixing the rail member 14 to a stationary member 18 such as a machine frame.

  Since the bolt 1 is configured such that the lower surface of the flange portion 5 slides on the sliding surface 20 of the guide member 13 and the shaft portion 3 passes through the guide passage 12, the guide passage 12 passes through the head member 2. This means a passing space including a passing space portion through which the space portion and the shaft portion 3 pass.

  The longitudinal direction of the introduction passage 7 and the longitudinal direction of the guide passage 12 are substantially perpendicular to each other, and the introduction passage 7 and the guide passage 12 communicate with each other via an inlet opening 16 provided in the guide member 13 on one side. The sliding surface 10 of the introduction member 6 and the sliding surface 20 of the guide member 13 are arranged on one imaginary plane so that the flange portion 5 can continuously and smoothly transition from the introduction passage 7 to the guide passage 12. It has become.

  As a method for moving the bolt 1 of the introduction passage 7 toward the guide passage 12, various methods such as inclining the introduction member 6 or applying transfer vibration to the introduction member 6 such as a linear feeder are adopted. it can.

  Further, the bolt 1 transferred to the introduction passage 7 is sent in a suspended position from a parts feeder (not shown).

  Next, the target location will be described.

  The bolt 1 that has entered the guide passage 12 from the inlet opening 16 stops at a standby position WP (waiting position) in the immediate vicinity of the inlet opening 16. This stop is made by the suction means 17 attached to the apparatus main body 11. Various means such as air suction and an electromagnet can be adopted as the suction means 17, but here the permanent magnet 17 embedded in the apparatus main body 11. Accordingly, the bolt 1 that has entered the guide passage 12 from the introduction passage 7 temporarily stops at the standby position WP.

  A first target location P1 is disposed at the end of the guide passage 12 on one side from the standby position WP. In addition, a second destination location P2 is disposed at the end of the guide passage 12 on the opposite side of the first destination location P1 from the standby position WP. Thus, the target location is arrange | positioned in two places with the positional relationship facing the both ends of the guide channel | path 12. FIG.

  The distance L1 from the standby position WP to the first destination location P1 and the distance L2 from the standby position WP to the second destination location P2 are set to the same distance.

  Next, the pressing member will be described.

  A pressing member 21 that is advanced and retracted by an advancing / retreating drive unit 19 to be described later is disposed in the guide passage 12 between the standby position WP and the first destination location P1 or between the standby position WP and the second destination location P2. . In FIG. 1 and FIG. 2, it arrange | positions in the guide channel | path 12 between the standby position WP and the 2nd destination location P2. The pressing member 21 is made of a thick rectangular plate, and the thickness of the plate is 8 mm. The pressing member 21 advances and retreats while sliding on the inner wall of the guide passage 12, or as shown in FIG. And a slight gap is formed between the inner wall of the guide passage 12.

  At both ends of the pressing member 21, pressing surfaces S1 and S2 for moving the bolt 1 waiting at the standby position WP to either the first target location P1 or the second target location P2 are formed. These pressing surfaces S <b> 1 and S <b> 2 are formed on the end surface of the pressing member 21, and press the shaft portion 3 of the bolt 1. Since the shaft portion 3 is pushed in this way, only the shaft portion 3 is shown in FIGS. 2 and 3, and the flange portion 5 and the head portion 4 are not shown.

  The distance between the pressing surfaces S1 and S2 of the pressing member 21, that is, the length L3 in the advancing / retreating direction of the pressing member 21, is the distance between the standby position WP and the first target location P1, or the standby position WP and the second target location P2. It is set slightly shorter than the distance between. The reason for setting this slightly shorter is to secure a space for the shaft 3 having a diameter of 8 mm to stop at the standby position WP, the first destination location P1, or the second destination location P2. Because.

  The distance L1 between the standby position WP and the first destination location P1 and the distance L2 between the standby position WP and the second destination location P2 are both 150 mm. The distance L3 between the pressing surfaces S1 and S2 of the pressing member 21 is 140 mm.

  In order to give the pressing member 21 an advance / retreat operation, the advance / retreat drive means 19 is arranged. A slide member 22 is fitted into a rail member 14 coupled to the lower side of the apparatus main body 11 in a slidable state, and a pressing member 21 is fixed to the slide member 22 with a bolt or welding. The forward / backward drive means 19 is coupled to the end of the rail member 14, and its output shaft 23 is coupled to the slide member 22. As the advancing / retracting drive means 19, various devices such as an air cylinder, an advancing / retracting output type electric motor or a rack and pinion mechanism can be adopted. In this example, the electric motor 19 is a forward / backward output type. When the electric motor 19 is operated, the advance / retreat output is transmitted from the output shaft 23 to the slide member 22, whereby the pressing member 21 advances / retreats in the guide passage 12.

  Next, the application state of this apparatus will be described.

  As shown in FIG. 6, the apparatus 100 according to the first embodiment sends the head member 2 of the bolt 1 to the first target location P <b> 1 and the second target location P <b> 2 to wait, and reaches the socket 30 of the screw tightening unit 24 there. The head member 2 of the bolt 1 is held in the socket 30 and supplied to other screw tightening locations, and the bolts are tightened there.

  The screw tightening unit 24 is generally employed, and a rotary drive device 27 such as an electric motor is attached to the robot device 26, and the rotational force of the rotary drive device 27 is applied to two rotary shafts 28. A transmission device 29 is provided. A screw-tightening socket 30 is attached to the rotary shaft 28, and the distance between both sockets 30 is set to be the same as the distance L1 + L2 between the first target location P1 and the second target location P2.

  The screw-tightening socket 30 is provided with a hexagonal receiving hole 31 opened downward. The head 4 enters the receiving hole 31. The robot device 26 operates to hold the head 4 of the bolt 1 waiting at the first target location P1 and the second target location P2 in the socket 30, and the bolt 1 is screwed into the screw holes at other locations. . Note that a suction means such as a permanent magnet is embedded in the socket 30 so that the bolt 1 does not fall from the socket 30.

  Next, the structure of each part of the apparatus other than the above will be described.

  The shaft portion 3 must be accurately positioned at the first target location P1 and the second target location P2 at the end of the guide passage 12. For this purpose, a positioning structure is employed as shown in FIG. A positioning surface 32 formed in the longitudinal direction of the guide passage 12 and a positioning surface 33 orthogonal to the positioning surface 32 are formed at the end of the guide passage 12. The positioning surface 33 is an inner end surface of the guide passage 12. A pressing surface S1 on one side of the pressing member 21 is formed on an inclined cam surface 34, and when the cam surface 34 is pressed against the shaft portion 3, the outer peripheral surface of the shaft portion 3 faces both the positioning surfaces 32 and 33. When pressed, the stop position of the shaft portion 3, that is, the bolt 1 on the first target point P1 side is accurately set.

  As described above, the positioning is performed by the pressing operation of the pressing member 21 on the first target location P1 side, but the pressing operation of the pressing member 21 is used for positioning the bolt 1 on the second target location P2 side. Therefore, the positioning member 35 that enters the guide passage 12 is employed. The positioning member 35 has a cam surface 36 having the same shape as the cam surface 34 at the tip. When the cam surface 36 is pressed against the shaft portion 3, the outer peripheral surface of the shaft portion 3 is pressed against both the positioning surfaces 32 and 33, so that the stop position of the shaft portion 3, that is, the bolt 1 on the second target location P2 side is set. Set accurately. In order to move the positioning member 35 back and forth, an air cylinder and a forward / backward output type electric motor 37 are adopted, and here, a forward / backward output type electric motor 37 is adopted, which is fixed to the apparatus main body 11 using a bracket 49. Yes.

  When the bolt 1 is introduced into the guide passage 12, it is controlled so that only one bolt 1 is introduced into the guide passage 12. That is, when the bolt 1 waiting at the standby position WP is moved to the first target location P1 or the second destination location P2 by the pressing member 21, the bolt 1 enters the standby location WP from the introduction passage 7. A restricting member 38 for preventing is provided integrally with the pressing member 21, and a restricting surface 39 for stopping the bolt 1 entering from the introduction passage 7 is provided on the restricting member 38. The restricting member 38 is made of a thick plate, has substantially the same length as the pressing member 21, and is fixed to the pressing member 21 with a fixing bolt 40. Then, as shown in FIG. 4B, the regulating surface 39 is arranged at a position shifted to the introduction passage 7 side from the pressing member 21, and the bolt 1 is stopped on the introduction passage 7. .

  The bolt 1 fixed to the first target location P1 by pressing the cam surface 34 of the pressing member 21 is held by the screw tightening socket 30 and transferred to another location so as to be pulled out from the first target location P1. . At this time, in order to release the pressing of the cam surface 34, the cam surface 34 moves to a position slightly away from the shaft portion 3 as shown in FIG. The bolt 1 does not enter the guide passage 12 from the introduction passage 7 when this movement occurs.

  Therefore, an arm member 41 is coupled to the regulating member 38, and a regulating arm 42 that regulates the bolt 1 in the introduction passage 7 is coupled to the arm member 41 via the bridge member 43. As shown in FIG. 5B, the bridge member 43 is a gate-type coupling member provided with a passage space 44 for allowing the head member 2 to pass therethrough.

  A structure shown in FIG. 5C may be used instead of the restriction arm 42. This structure operates the first stopper piece 45 and the second stopper piece 46 that enter the introduction passage 7. The first stopper pieces 45 and the second stopper pieces 46 are alternately advanced and retracted by advancing and retracting drive means 47 and 47 comprising an air cylinder attached to the introduction member 6 and a forward and backward output type electric motor.

  The figure shows a state in which both stopper pieces 45 and 46 have entered the introduction passage 7. Here, when the first stopper piece 45 moves backward, the earliest bolt 1 moves to the standby position WP. Thereafter, when the first stopper piece 45 again enters the introduction passage 7, the second stopper piece 46 is moved backward to move the second bolt 1 to the first position and is received by the first stopper piece 45. Then, when the second stopper piece 46 enters the introduction passage 7 again, the next bolt 1 is received as the second one.

  Next, the sorting operation will be described.

  FIG. 2 is an operation diagram schematically showing the sorting operation. In FIG. 2A, the pressing member 21 is located between the standby position WP and the first target location P1, and spaces where the shaft portion 3 stops are set on both sides thereof. Therefore, as described above, the length of the pressing member 21 is set so that the length corresponding to this space is shorter than the L1 and L2.

  Here, when the bolt 1 enters the standby position WP and stops when the permanent magnet 17 is attracted, the electric motor 19 operates to move the pressing member 21 toward the second target position P2, and the standby position WP and the second target. Move between locations P2. Along with this, the shaft portion 3 is pushed toward the second destination location P2 by the pressing surface S2, and the pressing member 21 stops between the standby position WP and the second destination location P2. At this time, as shown in FIG. 3, the positioning member 35 advances and the bolt 1 is positioned at the second target location P2.

  When the bolt 1 is positioned at the second target position P2 as shown in FIG. 2B, the next bolt 1 is fed to the standby position WP. Next, when the pressing member 21 is moved toward the first target location P1 by the operation of the electric motor 19, the shaft portion 3 is pressed by the pressing surface S1, and as shown in FIG. It stops between the standby position WP and the first destination location P1. At this time, positioning by the cam surface 34 shown in FIG. 3 is performed.

  When the bolt 1 is positioned at both the first target location P1 and the second target location P2 in this way, the robot device 26 shown in FIG. 6 then operates to hold the bolt 1 in the socket 30. Then, two bolts 1 are screwed into two screw holes at other locations. In this example, the screw tightening unit 24 is operated. However, it is also possible to hold the two bolts 1 stopped at a predetermined position by the apparatus 100 with a chuck and supply them to other target locations. Is possible.

  The above-described operation can be easily performed by a generally employed control method. Ensuring predetermined operation by combining a forward / backward output type electric motor that operates with a signal from the control device or sequence circuit, a sensor that emits a signal at a predetermined output position of this forward / backward output type electric motor and transmits it to the control device can do.

  The operational effects of the first embodiment described above are as follows.

  The pressing member 21, which is disposed at two locations in a positional relationship where the first target location P1 and the second target location P2 face each other, and moves forward and backward by the electric motor 19 which is the forward / backward drive means, A pressing surface S2 for moving the bolt 1 waiting at the standby position WP to the second destination location P2 is formed in the pressing member 21 while being positioned in the guide passage 12 between the first destination locations P1. (See FIG. 2). For this reason, when the pressing member 21 moves to the second destination location P2, the bolt 1 on which the pressing surface S2 on one side of the pressing member 21 is waiting at the standby position WP is moved to the second destination location P2. Subsequently, when the pressing member 21 moves to the first target location P1 side, the next bolt 1 in which the pressing surface S1 on the other side of the pressing member 21 is waiting at the standby position WP is used as the first purpose. Move to location P1.

  Accordingly, the bolts 1 positioned at the standby position WP are alternately moved to the first target location P1 and the second target location P2 by the pressing surfaces S1 or S2 arranged on both sides of the pressing member 21, so that the pressing member 21 Therefore, the bolt 1 is always moved to one of the target locations, so that the pressing member 21 can be operated efficiently without any idle movement. And the destination location is the first destination location P1 arranged at the end of the guide passage 12 on one side from the standby position WP, and the other side on the opposite side from the standby location WP to the first destination location P1. Since there are two places of the second target place P2 arranged at the end of the guide passage 12, the movement locus of the pressing member 21 can be made straight and simple, and a smooth sorting operation can be achieved. It is done.

  Furthermore, since the pressing member 21 is disposed in the guide passage 12 between the standby position WP and the first destination location P1 or between the standby position WP and the second destination location P2, the length of the pressing member 21; That is, by increasing the distance between the pressing surfaces S1, S2, the advance / retreat operation distance of the advance / retreat drive means 19 can be shortened according to the increased distance, which is effective for downsizing of the advance / retreat drive means 19. It is.

  In other words, even if the distance L1 + L2 between the first destination location P1 and the second destination location P2 becomes longer, the advance / retreat operation distance of the advance / retreat drive means 19 may be about half of that, which is suitable for downsizing. For example, the bolt 1 positioned at the standby position WP is held by the chuck mechanism and moved to the first target location P1, and then the next bolt 1 waiting at the standby position WP is returned to the chuck mechanism. If it is held and moved to the second target location P2, the movement distance applied to the chuck mechanism is the distance L1 + L2 between the first target location P1 and the second target location P2, and the advance / retreat operation distance of the advance / retreat drive means 19 is It will be significantly longer.

  The length L1 of the guide passage 12 from the standby position WP to the first destination location P1 and the length L2 of the guide passage 12 from the standby position WP to the second destination location P2 are the same length, The length of the pressing member 21 in the advance / retreat direction is set slightly shorter than the lengths L1 and L2.

  The lengths L1 and L2 of the guide passage 12 from the standby position WP to the first destination location P1 and the second destination location P2 are the same, and the length of the pressing member 21 in the advancing / retreating direction is longer than the lengths L1 and L2. Is slightly shorter. Since both the pressing surfaces S1 and S2 of the pressing member 21 having such a length are alternately moved to the first target location P1 side or to the second target location P2 side, the first purpose from the standby position WP. The distance for moving the bolt 1 to the place P1 and the distance for moving the bolt 1 from the standby position WP to the second target place P2 are the same length. Therefore, the advancing / retreating operation distance of the advancing / retreating drive means 19 is the same length in the advancing direction and the retreating direction, and is about ½ of the distance L1 + L2 between the first destination location P1 and the second destination location P2. it can. Thereby, the length of the advancing / retreating drive means 19 can be shortened, which is effective for reducing the size of the apparatus 100.

  The pressing surface S1 is a cam surface 34, and the bolt 1 positioned at the first target location P1 is positioned by positioning surfaces 32 and 33 provided at the end of the guide passage 12. The cam surface 34 presses the shaft portion 3 and is positioned by the positioning surfaces 32 and 33. A positioning member 35 that presses the bolt 1 positioned at the second destination location P2 opposite to the first destination location P1 against the positioning surfaces 32 and 33 at the end of the guide passage 12 is provided from outside the guide. It was configured to enter the passage 12.

  With such a configuration, the bolt 1 is pressed against the positioning surfaces 32 and 33 by the pressing operation of the cam surface 34 against the end portion of the guide passage 12 which is one target location P1, and the stop position of the bolt 1 at this location Is accurately set by the pressing member 21. Further, the positioning member 35 enters from the outside into the end portion of the guide passage 12, which is the other target location P2, and the bolt 1 is positioned. Thus, the pressing surface S1 (cam surface 34) functions as a positioning pressing surface at one target location, and the positioning member 35 entering from the outside operates at the other target location, so that only one side enters from the outside. Since the positioning member 35 is used and the pressing surface S1 performs the positioning function on the other side, it is effective for simplification of the structure.

  When the bolt 1 waiting at the standby position WP moves to the first target location P1 or the second destination location P2 by the pressing member 21, the bolt 1 enters the standby location WP from the introduction passage 7. A restricting member 38 for preventing this is provided integrally with the pressing member 21, and a restricting surface 39 for stopping the bolt 1 entering from the introduction passage 7 is provided on the restricting member 38.

  In this way, when the pressing member 21 moves the bolt 1 to the first target location P1 or the second target location P2, the regulating member 38 that prevents the bolt 1 from entering the standby position WP from the introduction passage 7 is provided. Since it is provided, the bolt 1 entering from the introduction passage 7 is prevented from interfering with the lateral surface of the pressing member 21, and a smooth moving operation of the pressing member 21 is obtained.

  The component is a shaft-shaped component having at least the head member 2 and the shaft portion 3, and the introduction passage 7 and the guide passage 12 pass through the sliding surfaces 10 and 20 on which the lower surface of the head member 2 slides and the shaft portion 3 passes. Space portions 7 and 12 are provided.

  The shaft-shaped component having at least the head member 2 and the shaft portion 3 is such that the head member 2 is supported by the sliding surfaces 10 and 20 and the shaft portion 3 passes through the passage space portions 7 and 12. Moves in the introduction passage 7 and the guide passage 12 in a suspended state. As a result, it is possible to smoothly reach the first target location P1 and the second target location P2 while the shaft-like component is suspended.

  FIG. 7 shows a second embodiment of the present invention.

  In Example 2, instead of the bolt 1 in Example 1, the part shape is as shown in FIG. This component 51 is a cylindrical shape having a two-stage structure, and is composed of a large diameter portion 52 and a small diameter portion 53. Since the component has such a shape, a step portion 54 extending in the longitudinal direction of the guide member 13 is provided inside the upper portion of the guide member 13, and the large-diameter portion 53 slides there.

  Although not shown, the introduction passage 7 has the same structure as the guide passage 12.

  A guide groove 55 is formed in the rail member 14, and the slide member 22 is fitted in a slidable state. A projecting member 56 is fixed to the lower side of the slide member 22, and an output shaft 23 of the forward / backward movement type electric motor 19 is coupled thereto. Other configurations are the same as those of the first embodiment including the portions not shown, and members having the same functions are denoted by the same reference numerals.

  The operation of the second embodiment is the same as the operation of the first embodiment. Thus, even parts 51 having different shapes can be effectively distributed. Other functions and effects are the same as those of the first embodiment.

  FIG. 8 shows a third embodiment of the present invention.

  In the first and second embodiments, the length of the guide passage 12 from the standby position WP to the first destination location P1 and the length of the guide passage 12 from the standby location WP to the second destination location P2. Are the same lengths L1 and L2. However, in the third embodiment, any one of the length of the guide passage 12 from the standby position WP to the first destination location P1 and the length of the guide passage 12 from the standby location WP to the second destination location P2 is selected. One of them is set short, and the length of the pressing member 21 in the advancing / retreating direction is set slightly shorter than the shortened length.

  In FIG. 8, the length set short is shown by L2, and the longer length is shown by L1 + L4. Therefore, the length L4 is an extended length. Therefore, the output length of the forward / backward output type electric motor 19 is increased by an amount corresponding to L4. In order to reduce the size of the apparatus 100 structurally, the length L4 should be as short as possible. However, when the distance from the standby position WP to the first destination location P1 and the second destination location P2 is unequal, Can be handled with a simple configuration.

  When the length from the standby position WP to one destination location is longer than the length from the standby location WP to the other destination location, only this length L4 is added to the operation length of the advance / retreat driving means 19 By doing so, it is possible to reliably reach the bolt 1 to the far destination. In order to add such an operation length L4 to the advance / retreat driving means 19, for example, in the case of an air cylinder, the operation length may be increased by a required amount. Further, in the case of an electric motor that converts a rotational motion into a forward / backward stroke, the length L4 added to the forward / backward drive means 19 can be accurately set by setting the relationship between the rotational speed and the stroke in advance.

  As described above, according to the apparatus of the present invention, it is possible to reliably distribute parts in two directions and to minimize the operating distance of the distribution driving means. Therefore, the present invention can be used in a wide range of industrial fields such as an automobile body assembly process and a home appliance screwing process.

DESCRIPTION OF SYMBOLS 1 Bolt 2 Head member 3 Shaft part 4 Head part 5 Flange part 6 Introduction member 7 Introduction passage, passage space part 10 Sliding surface 11 Apparatus main body 12 Guide passage, passage space part 13 Guide member 19 Advance / retreat drive means, advance / retreat output type electric motor 20 Sliding surface 21 Pressing member S1 Pressing surface S2 Pressing surface P1 First target location P2 Second target location WP Standby position L1 Standby position / distance between first target locations L2 Standby position / distance between second target locations L4 34 cam surface 35 positioning member 38 restricting member 39 restricting surface 51 component 54 step 100 device

Claims (1)

In the type of moving the part that has entered the standby position of the guide path from the introduction path to the target location along the guide path from the standby position,
The component is a shaft-shaped component having at least a head portion and a shaft portion, and the introduction passage and the guide passage include a sliding surface on which a lower surface of the head slides and a passage space portion through which the shaft portion passes,
The guide passage is configured by arranging two elongated straight guide members in parallel, and the passage space is disposed between the two guide members,
The target location includes a first target location arranged at an end portion of the guide passage on one side from the standby position, and an end of the guide passage on the other direction side opposite to the first target location from the standby position. Provided in two places of the second destination place arranged in the section,
Pressing member for the forward and backward movement by advancing drive means, along with being located in said guide passage between said second target site or between the waiting position of the first object position and the standby position, the pressing member A pressing surface for moving the part waiting at the standby position to either the first target position or the second target position in a state of pressing the shaft portion of the part is formed at both ends ,
The slide member is fitted in a slidable state in a U-shaped rail member integrating the two guide members, and the pressing member is fixed to the slide member, and the forward / backward drive means Is connected to the end of the rail member .

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