JPH0724358B2 - Mounting head operation mechanism of component mounting machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mounting head operating mechanism of a component mounting machine used for mounting chip-shaped electronic components on a printed circuit board, and more particularly to a mounting head operating mechanism. The present invention relates to a mounting head operating mechanism of a component mounting machine capable of shortening the stop time of the index table and increasing the speed.

(Summary of the Invention) The present invention relates to a mounting head operating mechanism of a component mounting machine used for mounting a chip-shaped electronic component on a printed circuit board, and the like, which moves in synchronization with intermittent rotation of an index table. Further, by disposing means for performing a swinging operation of the mounting head on the second moving table, the stop time of the index table can be shortened and the speed can be increased, which in turn makes it possible to improve the mounting efficiency of parts. is there.

(Prior Art) Conventionally, in Japanese Patent Laid-Open No. 61-77399 proposed by the present applicant, a plurality of mounting heads each having one suction pin are arranged at an equal angular interval on an index table, and the index table is provided with a center of rotation. Chip-shaped electronic components are suction-held by suction pins from a plurality of supply units that are arranged in parallel radially toward each other, and the components are transferred onto the printed circuit board according to the intermittent rotation of the index table. A sequence-type component mounting machine for mounting on a printed circuit board is disclosed.

Further, as a component mounting machine for rotating the mounting head from the outside of the index table, a structure shown in Japanese Patent Laid-Open No. 62-30399 is known.

(Problems to be Solved by the Invention) When a large number of mounting heads are arranged on the index table, a mechanism or the like for rotating or swinging the mounting heads is provided on the index table in correspondence with each mounting head. Then, the configuration becomes very complicated and expensive, and it becomes difficult to secure a space for arranging those mechanisms on the index table.

There is also a configuration in which a mechanism for rotating or swinging the mounting head is fixedly arranged outside the index table. In this case, it is advantageous in terms of simplification of the mechanism, but the index table stops at a predetermined position. The rotation or swing operation of the mounting head has to be completed during the period during which the index table is stopped. Further, when the mounting head that has adsorbed the components is suddenly rotated, it may fall off or be displaced. If the stop period of the index table cannot be shortened, there is a limit to improving the efficiency of mounting electronic parts on the printed circuit board.

In view of the above points, the present invention provides mounting head operating means for operating the mounting heads on the first and second movable bases that alternately move in synchronization with the index table provided with a plurality of mounting heads. Accordingly, it is an object of the present invention to provide a mounting head operating mechanism for a component mounting machine, which shortens the stop period of the index table and improves component mounting efficiency.

(Means for Solving the Problem) According to the present invention, a plurality of mounting heads are provided at equal angular intervals on the peripheral edge of an index table that rotates intermittently, and each mounting head is provided with a suction pin for sucking a component. In a mounting head operating mechanism of a component mounting machine for operating the mounting head from outside the index table, forward and backward movements are arranged along the index table and alternately on an arc movement locus concentric with the intermittent rotation of the index table. Mounting head operating means are respectively arranged on the first and second moving bases, and the first moving base moves forward while maintaining a constant position with the index table in synchronization with intermittent rotation of the index table. During the period, the second moving table retreats in the opposite direction of the index table, and the second moving table moves backward. In synchronization with the intermittent rotation of the index table, the first movable table retreats and returns in the opposite direction of the index table during the period of forward movement while maintaining a constant position with the index table. Is a period in which the index head and the index table are moved forward while keeping a constant position, and a stop period are periods in which the mounting head operating means arranged on the first moving table can operate the mounting head,
A period in which the second movable table moves forward while keeping a constant position with the index table and a stop period are defined as a period in which the mounting head operating means arranged on the second movable table can operate the mounting head. It is characterized by doing.

(Operation) In the mounting head operation mechanism of the component mounting machine of the present invention,
Since the mounting head operating means for operating the mounting head is provided on each of the first and second moving tables that move alternately in synchronization with the intermittent rotation of the index table, the stop period of the index table and the following index table Can be used for various operations of the mounting head, the stop period of the index table can be shortened, and the component mounting speed can be improved.

(Embodiment) An embodiment of a mounting head operating mechanism of a component mounting machine according to the present invention will be described below with reference to the drawings.

First, the overall configuration of the component mounting machine to which the present invention is applied will be described with reference to FIG. In these figures, 1 is a base, 2 is an XY table installed on the base, and 3 is an X-
It is a printed circuit board on the Y table. A main body frame 4 is erected and fixed on the base 1, and a disc-shaped index table 5 is supported by the frame 4 so as to be intermittently rotatable in a horizontal plane. Reference numeral 6 is a drive mechanism for rotating the index table 5 intermittently. A plurality of mounting heads 7 are attached to the peripheral edge of the disk-shaped index table 5 so as to be swingable in a horizontal plane at equal angular intervals. Here, it is assumed that each mounting head 7 has three types of suction pins 9 of large diameter, medium diameter, and small diameter. A mounting head operating mechanism 10 is arranged along the outer circumference of the index table 5 for swinging the mounting head 7 at a predetermined position and rotating the suction pin from outside the index table 5.

FIG. 9 shows an example of the arrangement of the mounting head 7 provided with suction pins 9A, 9B, 9C of large diameter, medium diameter and small diameter. The circumference of the index table 5 is divided into 72 and the mounting head is arranged at intervals of 5 degrees. 7 is provided. In this case, around the index table 5
72 stations can be defined, and the first station S ₁ is assumed to be a position where mounting of chip-shaped electronic components (capacitors, resistors, inductors, ICs, etc.) to a printed circuit board is performed. 20th to 59th stations
S ₂₀ to S ₅₉ is the place to capture and suck the electronic component from the supply unit 8 supplies a chip-like electronic components.

19th station S ₁₉ thru 18th station S ₁₈
The section is a place where the mounting head operating mechanism 10 returns the mounting head 7 to the origin. This return to origin is an operation of setting any one of the suction pins (9A, 9B or 9C) that has sucked the electronic component by swinging the mounting head 7 so as to be located at the outermost circumferential position of the index table 5. Is.

The section from the 17th station S _{17 to the} 16th station S ₁₆ is where the suction head (9A, 9B or 9C) is rotated by the mounting head operating mechanism 10. This direction turning is an operation for rotating the suction pin by 90 degrees, for example, to change the orientation of the chip-shaped electronic component held by the suction pin by 90 degrees.

Further, the section from the _14th station S _{14 to the} 13th station S ₁₃ is a place where the mounting head operating mechanism 10 performs the corrective rotation of the suction pin (9A, 9B or 9C). This correction turning is an operation for turning a small amount of the electronic component based on the result of image processing of the posture of the electronic component after the direction turning at the _16th station S ₁₆ .

The index table 5 in FIG. 9 is considered to rotate clockwise (in the direction of arrow F) intermittently. Further, the arrangement of the large-diameter suction pins 9A, the medium-diameter suction pins 9B, and the small-diameter suction pins 9C in each mounting head 7 is equal to the equiangular intervals (90 degree intervals) eccentric with respect to the swing center of the mounting head 7. To do.

The mounting head operating mechanism 10 of the component mounting machine will be described in detail with reference to FIGS. 1 to 7. As shown in FIG. 3, the support frame 11 fixed to the body frame 4 has an upper arc-shaped slide rail 12 and a lower arc-shaped slide rail 21.
2 are fixed, and a first (upper) moving base 14 shown in FIG. 1 is fixed to an upper slider member 13 slidably attached to the upper slide rail 12. Similarly, a second (lower) moving base 214 shown in FIG. 2 is fixed to a lower slider member 213 slidably attached to the lower slide rail 212. The movement loci of the movable bases 14,214 are index table 5
On a concentric arc with a diameter larger than the outer diameter of.

As shown in FIG. 1, the base portion 16 of the linear slide 15 is fixed on the first moving table 14 at a plurality of positions.
Slide bar that slides on slide 17 that can slide 16
18 is stuck. A perforated plate 35 is fixed to the slide horizontal bar 18, and the perforated plate 35 is formed with an arcuate elongated hole 36 concentric with the outer peripheral surface of the index table 5. A roller 39 is pivotally attached to the tip of an oscillating arm 38 fixed to the lower end of an oscillating drive shaft 37 pivotally supported on the body frame 4 side, and the roller 39 engages with the inside of the elongated hole 36. ing. Therefore, the slide lateral bar 18 periodically repeats the forward movement (arrow J) toward the center of the index table 5 and the reverse movement (arrow K) in the opposite direction by swinging the swing arm 38 as shown by the arrow H.

A swinging operation means 32 as a first mounting head operating means for swinging the mounting head 7 is provided for the movable table 14. That is, the mounting head origin returning pulse motor 20 is fixed on the mounting plate integrated with the moving base 14, and the mounting head origin returning arm 22 is pivotally attached to the bracket 21 fixed to the moving base 14. . And arm 22
A mounting head origin returning gear 23 is pivotally attached to the tip of the. A pulley 24 is integrated with the gear 23. Fourth
As shown in the figure, a pulley 25 fixed to the rotary shaft of the pulse motor 20, a pulley 26 pivotally supported by an arm mounting pivot of the bracket 21, the pulley 24, and a pivotal attachment in the middle of the arm 22. The timing belt 28 is stretched between the pulley 27 and the rotation of the pulse motor 20.
It will be transmitted to 23. The slide horizontal bar
An air cylinder 29 for returning the mounting head to the origin is fixed to 18, and the rod tip member 30 of the air cylinder 29 is an arm.
Abuts 22. The mounting head origin return gear 23
Is the mounting head 7 located in the section of the _{19th to 18th} stations S _{19 to} S ₁₈ when the slide horizontal bar 18 is in the forward position and the tip member 30 of the air cylinder 29 is in the extended state. It is adapted to mesh with the gear 40 integrated on the outer periphery of the.

The suction pins (9A, 9B, 9C) rotatably provided on the mounting head 7 each have a friction wheel 41 at the top.

A direction turning operation means 33 as a second mounting head operation means for turning the suction pin included in the mounting head 7 in the direction is provided on the movable table 14. That is, the suction pin direction turning pulse motor 50 is fixed on the mounting plate 45 integrated with the moving table 14, and the suction pin direction turning arm 52 is pivotally attached to the bracket 51 fixed to the moving table 14. ing. A friction wheel 53 for turning the suction pin direction is pivotally attached to the tip of the arm 52. A pulley 54 is integrated with the friction wheel 53. And the pulse motor
Pulley 55 fixed to the rotating shaft of 50 and the bracket
A pulley 56 pivotally supported by the arm mounting pivot of 51, the pulley 54, and a pulley pivotally mounted in the middle of the arm 52.
A timing belt 58 is stretched between 57 and 57, and the rotation of the pulse motor 50 is transmitted to the friction wheel 53. An air cylinder 59 for turning the suction pin direction is fixed to the slide lateral bar 18, and a rod tip member 60 of the air cylinder 59 is in contact with an arm 52. The suction pin direction turning friction wheel 53 has the 17th to 16th stations S when the slide lateral bar 18 is in the forward position and the tip member 60 of the air cylinder 59 is in the extended state.
The suction pin (the one located closest to the outer circumference of the index table 5) of the mounting head 7 located in the section _{17 to} S ₁₆ comes into contact with the friction wheel 41.

The movable base 14 is provided with a correction turning operation means 65 as a third mounting head operation means for performing a correction turning of the suction pin of the mounting head 7. That is, the suction pin correction turning pulse motor 70 is fixed on the mounting plate 45 integrated with the moving table 14, and the suction pin correction turning arm 72 is pivotally attached to the bracket 71 fixed to the moving table 14. ing. A friction wheel 73 for turning a suction pin correction is pivotally attached to the tip of the arm 72. A pulley 74 is integrated with the friction wheel 73. And the pulse motor
Pulley 75 fixed to the rotating shaft of 70 and the bracket
A pulley 76 pivotally supported by an arm mounting pivot of 71, the pulley 74, and a pulley pivotally mounted in the middle of the arm 72.
A timing belt 78 is stretched between 77 and 77, and the rotation of the pulse motor 70 is transmitted to the friction wheel 73. An air cylinder 79 for suction pin correction turning is fixed to the slide horizontal bar 18, and a rod tip member 80 of the air cylinder 79 is in contact with an arm 72. In the suction pin correction turning friction wheel 73, the slide lateral bar 18 is at the forward position, and the rod tip member 80 of the air cylinder 79 is used.
Is in the extended state, the suction pin of the mounting head 7 located in the section of the _{14th to 13th} stations S _{14 to} S ₁₃ (the one closest to the outer circumference of the index table 5) It is designed to come into contact with the friction wheel 41.

As shown in FIG. 5, rocking prohibiting means 85 is arranged along the base of each mounting head 7 on the index table 5. The rocking prohibition means 85 includes a fixed block 84 fixed to the base (on the side of the index table), a lock pin 86 that is fitted in the block 84, and can be moved in and out, and an operating lever 87 that engages with the lock pin 86 A roller 88 pivotally attached to the tip of the operating lever 87 and a compression spring 89 for urging the operating lever 87 in a direction in which the lock pin 86 is fitted into the main body block of the mounting head 7 are provided.

On the other hand, as shown in FIG. 5, the base portion 91 of the linear slide 90 is fixed to the base 141 fixed to the support frame 11 independently of the first moving base 14, and with respect to the base portion 91. Swing prohibition release cam plate 93 at the tip of the slidable slide part 92
Is stuck. The slide portion 92 is a connecting member to the operation rod 95 of the electromagnetic solenoid 94 fixed to the base 141.
It is connected through 96. Therefore, when the operation rod 95 is projected, the rocking prohibition releasing cam plate 93 is at the forward position, the roller 88 at the tip of the operating lever 87 is pushed by the cam plate 93, and the operating lever 87 rotates counterclockwise in FIG. The lock pin 86 is removed from the mounting head body block to make the mounting head 7 swingable. In addition, on the main body block side of the mounting head, a lock pin is set every 90 degrees, for example, according to the swing angle of the mounting head.
A hole is formed to engage 86.

As shown in FIGS. 6 and 7, wedge-shaped locking member 100
The synchronizing means 99 is provided with a slide guide 101 fixed to the first moving table 14, a slider 102 swingably guided by the slide guide 101, and a synchronizing air fixed on the slider 102. A cylinder 103 and an engagement member 104 fixed to a rod of the air cylinder 103 are provided. A wedge-shaped locking member 100 is fixed to the slider 102. Further, a roller 106 pivotally mounted on a mounting plate 105 integrated with the slide horizontal bar 18 is fitted in the inner groove of the engaging member 104.

On the other hand, on the index table 5 side, a gap 111 into which the wedge-shaped locking member 100 can be fitted is formed between the base flanges 110 of the adjacent device heads 7.

The wedge-shaped locking member 100 is the synchronization air cylinder 1
03 rod is in the contracted state, and the slide horizontal bar
When 18 is moved forward, it fits in the gap 111 on the index table side, and as a result, the movable table 14 rotates together with the index table 5.

The moving operation of the first moving table 14 along the index table 5 is performed by the synchronizing means 99.
The reverse drive backward movement of the movable table 14 along the index table 5 is performed integrally with, i.e., in synchronization with, the return drive shaft 120 pivotally supported on the body frame 4 side as shown in FIG. Is performed by the return arm 121 fixed to the lower end of the. That is, the engaging groove 122 at the tip of the arm 121
By engaging with the engaging pin 123 fixed to the movable table 14, the movable table 14 can be returned in the direction opposite to the traveling direction of the index table 5 by the clockwise rotation of the arm 121 (first (The arm position is indicated by the solid line from the virtual line L in the figure).

FIG. 2 shows a configuration on the second (lower) moving table 214. On the second moving table 214, swing operation means 32 for swinging the mounting head 7 and suction provided by the mounting head are provided. A direction turning operation means 33 for turning the pin in the direction, a correction turning operation means 65 for correcting the suction pin, and a synchronizing means 99 including a wedge-shaped locking member 100 are provided. The specific configurations and operations of these means are substantially the same as those of the above-described first moving base 14, and the members having the same functions are designated by the same reference numerals.
The slide lateral bar 18 on the second moving base 214 periodically repeats the forward movement and the backward movement by the swinging movement of the swinging arm 238 fixed to the lower end of the swinging drive shaft 237. Also,
The moving operation of the second moving table 214 along the index table 5 is performed by the synchronizing means 99 integrally with the index table 5, that is, in synchronization with the moving table 214. The operation is performed by a return arm 151 fixed to the lower end of a return drive shaft pivotally supported on the body frame 4 side, as shown in FIG. That is, by engaging the engaging groove 152 at the tip of the arm 151 with the engaging pin 153 fixed to the moving table 214, the moving table 214 is moved in the traveling direction of the index table 5 by the clockwise rotation of the arm 151. Can be reversed.

The first moving table 14 and the second moving table 214 alternately move in synchronization with the index table 5, and the first moving table 14 is synchronized with the index table 5 by the synchronization means 99. Second moving platform 21 during the moving period
The return arm 151 retreats and returns 4 in a direction opposite to the traveling direction of the index table 5. Next, the second moving table 21
While the 4 is moving in synchronization with the index table 5 by the synchronizing means 99, the first moving table 14 is retracted and returned by the return arm 121 in the direction opposite to the traveling direction of the index table 5.

Next, the overall operation of the embodiment will be described. However, the case where the first movable table 14 first moves in synchronization with the disk-shaped index table 5 will be taken as an example.

The mounting head 7 that has mounted the chip-shaped electronic component on the printed circuit board at the _first station S ₁ in FIG. 9 moves sequentially with the intermittent rotation of the disc-shaped index table 5 in the direction of arrow F in increments of 5 degrees. And faced the supply unit 8
Reach the 59th to 20th stations S _{59 to} S ₂₀ (each station is equipped with 3 supply units) and specify using the designated suction pin 9A, 9B, 9C The specified electronic component is adsorbed and held by the supplied supply unit to reach the _19th station S ₁₉ .

The origin of the mounting head 7 is returned from this station S ₁₉ to the next station S ₁₈ . That is, the mounting case origin of the head 7 return is required, Figure 5 swing inhibition releasing cam plate 93 provided on the first movable carriage 14, the mounting head 7 stations S ₁₉ to perform back the origin Before arriving at, the roller 88 of the rocking prohibiting means 85 is pushed to disengage the lock pin 86 from the mounting head side main body block, and the mounting head 7 is set in a swingable state. Then, the slide lateral bar 18 on the first moving base 14 is moved to the forward position by the counterclockwise swing of the swing arm 38, and the gap 111 of the wedge-shaped locking member 100 on the index table 5 side.
Since the first moving table 14 is made to move integrally with the index table 5 by fitting to the index table 5 and the mounting head origin returning air cylinder 29 in the swinging operation means 32 is set in advance in advance. The origin return gear 23 meshes with the mounting head side 40 as shown by a virtual line G in FIG. And
The gear 23 swings the mounting head 7 at a predetermined angle, for example, 90 degrees by the rotational driving force of the pulse motor 20 for returning the origin,
As shown in FIG. 3, the suction pin holding the electronic component P is set at the position closest to the outer circumference of the index table 5.

This origin return operation of the mounting head is performed during one intermittent movement period of the index table 5 (and using the stop period before and after that if necessary).

At this time, the suction pin (any of 9A, 9B, 9C) of the mounting head 7 moving from the station S ₁₇ to the next station S ₁₆ is swiveled at the same time. That is, when it is necessary to rotate the suction pin holding the electronic component in the direction, the air cylinder 59 in the direction rotation operation means 33 is set to the extension state in advance, and the forward movement of the slide lateral bar 18 causes the suction pin direction rotation friction. The wheel 53 contacts the suction pin side friction wheel 41, and the friction wheel 53 rotates the suction pin by a predetermined angle, for example, 90 degrees by the rotational driving force of the direction turning pulse motor 50, and the electronic component held by the suction pin. Transform the posture of.

Similarly, the suction pin (any of 9A, 9B, 9C) of the mounting head 7 that moves from the station S ₁₄ to the next station S ₁₃
A correction turn is applied to. That is, when it is necessary to correct the turning of the suction pin holding the electronic component, the air cylinder 79 in the correction turning operation means 65 is set to the extension state in advance, and the forward movement of the slide lateral bar 18 causes friction for turning the suction pin direction. The wheel 73 comes into contact with the suction pin side friction wheel 41, and the friction wheel 73 rotates the suction pin by a minute angle (a required value obtained by image processing) by the rotation driving force of the correction turning pulse motor 70 and holds it by the suction pin. Correct the attitude of the electronic components that are being used.

If any of the mounting head origin return, suction pin direction swing, and suction pin correction swing is unnecessary, the origin return air cylinder 29, direction swing air cylinder 59, and correction swing air cylinder 79 are not required. It suffices if the air cylinder corresponding to the operation is set in a contracted state in advance.

When one intermittent rotation operation of the index table 5 is completed, the slide lateral bar 18 on the first moving table 14 is moved to the retracted position by the swing arm 38, and the wedge-shaped locking member 100 is formed.
Is removed from the index table 5. Then, in preparation for the next intermittent rotation operation of the index table 5, the slide horizontal bar 18 on the second moving base 214 is moved to the forward position by the swing motion of the swing arm 238, and the wedge-shaped locking member 100.
Fits on the index table 5. Then, the second movable table 214 moves in synchronization with the next intermittent rotation operation of the index table 5 and the same mounting head operation as in the case of the previous first movable table 14 is executed. During this period, the first moving table 14 is retracted by the return arm 121 on the arc locus to return to the return position.

(Effect of the Invention) As described above, according to the mounting head operating mechanism of the component mounting machine of the present invention, the mounting heads are mounted on the first and second moving bases that move in synchronization with intermittent rotation of the index table. By disposing the mounting head operating means for operating respectively, the stop time of the index table can be shortened and the speed can be increased, and the mounting efficiency of the parts can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a mounting head operating mechanism of a component mounting machine according to the present invention, mainly showing a first moving table,
FIG. 2 is a plan view mainly showing the second moving table, FIG. 3 is a side sectional view in which a part of the embodiment is omitted, FIG. 4 is a plan view of the rocking operation means, and FIG. 5 is a mounting head. FIG. 6 is a plan view showing the rocking prohibition means and means for releasing the rocking prohibition means, FIG. 6 is a plan view of a synchronizing means having a wedge-shaped locking member in the first moving table, FIG. 7 is a sectional view of the same side, and FIG. Is a front view showing the outline of the overall configuration of the component mounting machine, and FIG. 9 is an explanatory diagram for explaining the index table and the stations around it. 1 ... Base, 3 ... Printed circuit board, 4 ... Main body frame, 5 ... Index table, 7 ... Mounting head,
10 ... Mounting head operating mechanism, 12,212 ... Arc-shaped slide rail, 13,213 ... Slider member, 14,214 ... Movable base,
15 …… Linear slide, 18 …… Slide horizontal bar, 20,50,
70 …… Pulse motor, 23,40 …… Gear, 32 …… Rotating operation means, 33 …… Direction turning operation means, 41,53,73 …… Friction wheel, 29,59,79,103 …… Air cylinder, 65 ...... Correcting turning operation means, 93 ...... Cam plate, 99 ...... Synchronizing means, 100 ...... Wedge-shaped locking member, 111 ...... Gap.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Ishikawa 2 Shimogiri Himegaoka, Kani City, Gifu Prefecture Kani Industrial Park Okuma Iron Works Co., Ltd. Kani Factory (56) Reference JP 62-55998 (JP, A) )

Claims (2)

[Claims] 1. A plurality of mounting heads are provided at equal angular intervals on the periphery of an index table that rotates intermittently, each mounting head is provided with a suction pin for picking up a component, and the mounting head at a predetermined position is attached to the index table. In a mounting head operating mechanism of a component mounting machine operated from the outside, first and second movements arranged along the index table and alternately moving forward and backward on an arc movement locus concentric with the intermittent rotation of the index table. Mounting head operating means are respectively arranged on the table, and the second moving table is moved while the first moving table is moving forward while maintaining a constant position with the index table in synchronization with intermittent rotation of the index table. Moves backward in the opposite direction to the index table, and the second movable table is positioned between the index table. The first moving table retreats in the opposite direction to the index table during the period of forward movement while maintaining a constant position with the index table in synchronization with the intermittent rotation, and the first moving table is moved to the index table. And a period of moving forward while keeping a fixed position and a period of stop are periods during which the mounting head operating means arranged on the first moving table can operate the mounting head,
A period in which the second movable table moves forward while keeping a constant position with the index table and a stop period are defined as a period in which the mounting head operating means arranged on the second movable table can operate the mounting head. A mounting head operation mechanism for a component mounting machine, which is characterized by: 2. The first and second moving bases each include a wedge-shaped locking member, and rotate integrally with the index table during a period in which the wedge-shaped locking member is engaged with the index table side. The mounting head operating mechanism of the component mounting machine according to claim 1, which is a thing.