A general tool for die processing

Abstract

The utility model discloses a general tool for die head processing, including first support seat, second support seat and first fastener, second support seat and first support seat interval setting along the first direction, be provided with the mounting seat between first support seat and second support seat, be provided with first strip through groove on the mounting seat, and first strip through groove is parallel to the first direction setting, first fastener is used to pass through first strip through groove, and with the preset thread hole of die head is screwed, and first fastener can move along the first direction in first strip through groove, the utility model discloses the realization uses the same tool to bear and clamp to different specifications die head, and the versatility is good, and the frequency of replacing the tool is reduced, and the processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coating die head processing technology, and specifically to a general tooling for die head processing. Background Technology

[0002] The production process of coating dies includes CNC machining, grinding, die-cutting, and assembly. During the CNC machining of the dies, the tooling plays a crucial role. Traditional tooling typically only supports and clamps coating dies of a set specification, resulting in poor tooling versatility and requiring frequent tooling changes when machining dies of different specifications. Utility Model Content

[0003] This invention provides a universal tooling for die head processing, which solves the technical problem that existing tooling for die head processing has poor versatility and requires frequent tooling changes when processing die heads of different specifications.

[0004] In view of this, the present invention provides a universal tooling for die head processing, comprising:

[0005] First support seat;

[0006] The second support is spaced apart from the first support along a first direction;

[0007] A mounting base is disposed between the first support base and the second support base. The mounting base is provided with a first strip-shaped through groove, which is parallel to a first direction.

[0008] A first fastener is used to pass through the first strip groove and be threadedly connected to a preset threaded hole in the die head. The first fastener can move in the first strip groove along a first direction.

[0009] The universal tooling for die head processing according to this utility model has at least the following beneficial effects:

[0010] By providing a first strip-shaped through groove at the position of the preset threaded hole corresponding to the mold head on the mounting base, the first fastener can pass through the first strip-shaped through groove and move in the first direction within the first strip-shaped through groove. When assembling the mold head onto this universal tooling, the first fastener can be flexibly moved within the first strip-shaped through groove until it aligns with the corresponding preset threaded hole according to the preset threaded hole position of different mold heads, and then the thread is tightened. This allows the same tooling to be used to carry and clamp mold heads of different specifications, resulting in good versatility, reduced frequency of tooling changes, and improved processing efficiency.

[0011] In an optional embodiment, a universal base is also included, and the mounting base is connected between the first support base and the second support base via the universal base; the mounting base includes at least two separately arranged mounting parts, and a plurality of the mounting parts are arranged sequentially along a second direction, and each mounting part is provided with the first strip-shaped through groove.

[0012] In some alternative embodiments, the mounting portion may be movable relative to the universal base in a second direction and locked by a second fastener, wherein the first and second directions are perpendicular to each other.

[0013] In one optional embodiment, the universal base is provided with a second strip-shaped through groove, and the mounting part is provided with a second threaded hole corresponding to the position of the second strip-shaped through groove. The second fastener is used to pass through the second strip-shaped through groove and be threadedly connected to the second threaded hole. The second fastener can move in the second direction within the second strip-shaped through groove.

[0014] In an optional embodiment, the system further includes a bridge plate, through which the universal base is connected between the first support and the second support; the mounting portion includes at least two separately arranged mounting blocks, and a plurality of the mounting blocks are arranged sequentially along a first direction, each mounting block being provided with the first strip-shaped through groove; the universal base includes at least two separately arranged universal base blocks, and a plurality of the universal base blocks are arranged sequentially along the first direction, with corresponding mounting blocks connected to the universal base blocks; the universal base blocks are movable relative to the bridge plate along the first direction and are locked by a third fastener.

[0015] In one optional embodiment, a third strip-shaped through groove is provided on one of the bridge plate and the universal base block, and a third threaded hole is provided on the other of the bridge plate and the universal base block at a position corresponding to the third strip-shaped through groove. The third fastener is used to pass through the third strip-shaped through groove and be threadedly connected to the third threaded hole. The third fastener can move in the third strip-shaped through groove along a first direction.

[0016] In one optional embodiment, the bridge plate can be rotatably disposed between the first support and the second support in a first direction that is the direction of the rotation axis.

[0017] In one alternative embodiment, a drive element is further included for driving the bridge plate to rotate.

[0018] In one alternative embodiment, the bridge plate is rotatably connected to the first support base via a first rotating member, and the bridge plate is detachably fixed to the first rotating member via a fourth fastener.

[0019] The bridge plate is rotatably connected to the second support base via a second rotating member, and the bridge plate is detachably fixed to the second rotating member via a fifth fastener.

[0020] In one optional embodiment, a first positioning pin is provided on one of the first rotating member and the bridge plate, and a first positioning hole is provided on the other of the first rotating member and the bridge plate, wherein the first positioning hole matches the first positioning pin.

[0021] And / or, a second positioning pin is provided on one of the second rotating member and the bridge plate, and a second positioning hole is provided on the other of the second rotating member and the bridge plate, the second positioning hole matching the second positioning pin. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the assembly of the mold head in this embodiment;

[0024] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0025] Figure 3 This is an exploded front view of the assembly of the mounting base and the mold head in this embodiment;

[0026] Figure 4 This is an exploded inverted structural diagram of the assembly of the mounting base and the mold head in this embodiment;

[0027] Figure 5 This is a schematic diagram of the three-dimensional assembly structure of the mounting base and the universal base in this embodiment;

[0028] Figure 6 This is an exploded view of the inverted assembly of the mounting base and the universal base in this embodiment;

[0029] Figure 7 This is an inverted exploded view of the assembly of the general base and bridge plate in this embodiment;

[0030] Figure 8 This is an exploded structural diagram of the bridge plate, the first support base, and the second support base assembly in this embodiment.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - First support base; 110 - First rotating component;

[0033] 200-Second support base, 210-Drive component, 220-Second rotating component, 221-Fifth threaded hole, 222-Second locating pin;

[0034] 310-Mounting part, 311-First strip groove, 312-Second threaded hole, 313-Mounting block, 320-First fastener;

[0035] 400 - Die head, 410 - Preset threaded hole;

[0036] 500-Universal base, 510-Universal base block, 511-Second strip through groove, 512-Third strip through groove, 520-Second fastener;

[0037] 600 - Bridge plate, 610 - Third threaded hole, 620 - Third fastener, 630 - Fourth through hole, 640 - Fourth fastener, 650 - Fifth through hole, 660 - Fifth fastener. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this embodiment, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0041] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.

[0042] According to an embodiment of the present invention, a general-purpose tooling for machining a die head 400 is provided, including a first support base 100, a second support base 200, and a first fastener 320; the second support base 200 and the first support base 100 are spaced apart along a first direction; a mounting base is provided between the first support base 100 and the second support base 200, and a first strip-shaped through groove 311 is provided on the mounting base, the first strip-shaped through groove 311 being parallel to the first direction; the first fastener 320 is used to pass through the first strip-shaped through groove 311 and is threadedly connected to a preset threaded hole 410 of the die head 400, and the first fastener 320 can move along the first direction within the first strip-shaped through groove 311.

[0043] The universal tooling of this embodiment has a first strip-shaped through groove 311 provided at the position of the preset threaded hole 410 of the mold head 400 corresponding to the mounting base. The first fastener 320 can pass through the first strip-shaped through groove 311 and can move in the first direction within the first strip-shaped through groove 311. When the mold head 400 is assembled into the universal tooling of this embodiment, the first fastener 320 can be flexibly moved within the first strip-shaped through groove 311 until it is aligned with the corresponding preset threaded hole 410 according to the position of the preset threaded hole 410 of different specifications of mold heads 400, and then the thread is tightened. This allows the same tooling to be used to carry and clamp mold heads 400 of different specifications, which has good versatility, reduces the frequency of tooling changes, and improves processing efficiency.

[0044] It is understandable that the number of first fasteners 320 matches the number of preset threaded holes 410 of the die head 400. During assembly, multiple (specifically two) first fasteners 320 can be threaded through the same first strip groove 311 and tightened into the corresponding preset threaded holes 410.

[0045] It should be noted that the die head 400 mentioned in this embodiment refers to the coating die head 400.

[0046] It is understood that the first direction mentioned in the text refers to any direction in the horizontal plane. In this embodiment, the first direction is preferably the length direction of the mold head 400. The first direction and the second direction are perpendicular to each other. For ease of description, it is referred to as... Figure 1 The first and second directions are described as first and second directions, but are not used to specifically limit the first and second directions.

[0047] like Figures 1 to 6 As shown, in some embodiments, the universal tooling also includes a universal base 500, through which the mounting base is connected between the first support base 100 and the second support base 200; the mounting base includes at least two separately arranged mounting portions 310, preferably two mounting portions 310, which are arranged sequentially along the second direction, and each mounting portion 310 is provided with a first strip-shaped through groove 311. By splitting the mounting base into at least two mounting portions 310, it is advantageous to flexibly connect each mounting portion 310 to the mold head 400.

[0048] like Figures 1 to 6 As shown, in some embodiments, the mounting part 310 can move relative to the universal base 500 along a second direction and be locked by the second fastener 520. With this configuration, the mounting part 310 can be flexibly moved relative to the universal base 500 along the second direction to a position where the first slot 311 communicates with the corresponding preset threaded hole 410, and then locked, according to the actual location of the preset threaded hole 410 of different specification die heads 400. This facilitates the passing of the first fastener 320 through the first slot 311 and threading it into the corresponding preset threaded hole 410, resulting in better versatility and enabling the clamping and processing of more specification die heads 400.

[0049] like Figure 2 , Figure 5 and Figure 6As shown, in some embodiments, the universal base 500 is provided with a second strip-shaped through groove 511, and the mounting part 310 is provided with a second threaded hole 312 corresponding to the position of the second strip-shaped through groove 511; the second fastener 520 is used to pass through the second strip-shaped through groove 511 and is threadedly connected to the second threaded hole 312, and the second fastener 520 can move in the second direction within the second strip-shaped through groove 511. With this configuration, on the one hand, when it is necessary to adjust the position of the mounting part 310 in the second direction, it is only necessary to loosen the second fastener 520 from the corresponding second threaded hole 312 to release the locking force on the mounting part 310, so that the mounting part 310 can be flexibly moved relative to the universal base 500 to adjust its position in the second direction; on the other hand, after the second fastener 520 is unscrewed from the corresponding second threaded hole 312, the mounting part 310 can be removed from the universal base 500, assembled with the mold head 400, and then reinstalled on the universal base 500, making the assembly operation simpler.

[0050] To improve the tightness of the assembly connection between the universal base 500 and the mounting part 310, such as Figure 6 As shown, specifically, the universal base 500 is provided with at least two second strip-shaped through slots 511 that are evenly spaced along the first direction.

[0051] like Figures 1 to 6 As shown, in some embodiments, the universal tooling also includes a bridge plate 600, and the universal base 500 is connected between the first support 100 and the second support 200 via the bridge plate 600; the mounting part 310 includes at least two separately arranged mounting blocks 313, and here there are three mounting blocks 313 arranged sequentially along the first direction, each mounting block 313 having a first strip-shaped through groove 311; the universal base 500 includes at least two separately arranged universal bottom blocks 510, and here preferably there are four universal bottom blocks 510, the four universal bottom blocks 510 arranged sequentially along the first direction, and the corresponding mounting blocks 313 are connected to the universal bottom blocks 510; the universal bottom blocks 510 can move relative to the bridge plate 600 along the first direction and are locked by the third fastener 620. With this setting, the position of the mounting block 313 relative to the bridge plate 600 along the first direction can be adjusted more flexibly and over a wider range according to the actual position of the preset threaded hole 410 of different specification mold heads 400. This ensures that the first strip-shaped through groove 311 is connected and adapted to the corresponding preset threaded hole 410 of more specification mold heads 400, resulting in better versatility and enabling the carrying and clamping of more specification mold heads 400 for processing operations.

[0052] In specific applications, the dimensions of each mounting block 313 along the first direction can be set to be the same or different. In this embodiment, in order to improve assembly efficiency while ensuring the universality of this embodiment, the dimension of the middle mounting block 313 along the first direction is larger than the dimensions of the other two mounting blocks 313 along the first direction; that is, the middle mounting block 313 is connected to two universal base blocks 510, and the other two mounting blocks 313 are each connected to one universal base block 510.

[0053] like Figure 2 and Figure 7 As shown, in some embodiments, a third strip-shaped through groove 512 is provided on one of the bridge plate 600 and the general-purpose base block 510, and a third threaded hole 610 is provided on the other of the bridge plate 600 and the general-purpose base block 510 at the position corresponding to the third strip-shaped through groove 512. Preferably, the third strip-shaped through groove 512 is provided on the general-purpose base block 510, and the third threaded hole 610 is provided on the bridge plate 600. A third fastener 620 is used to pass through the third strip-shaped through groove 512 and be threadedly connected to the third threaded hole 610. The third fastener 620 can move in the first direction within the third strip-shaped through groove 512. With this configuration, on the one hand, when it is necessary to adjust the position of the mounting block 313 along the first direction, simply loosen the third fastener 620 from the corresponding third threaded hole 610 to release the locking force on the universal base block 510, and the mounting block 313 can be flexibly moved along the bridge plate 600 to adjust its position. On the other hand, the third fastener 620 can be unscrewed from the corresponding third threaded hole 610, the universal base block 510 can be removed from the bridge plate 600, assembled with the mounting block 313 connected to the mold head 400, and then reinstalled on the bridge plate 600; the assembly operation is more convenient.

[0054] To improve the tightness of the assembly connection between the universal base block 510 and the bridge plate 600, specifically, each mounting block 313 is provided with two third strip-shaped through grooves 512 evenly spaced along the second direction.

[0055] In some embodiments, the bridge plate 600 can be rotatably disposed between the first support 100 and the second support 200 with the first direction being the axis of rotation. With this configuration, after the die head 400 is clamped in the general tooling of this embodiment, it can be driven to rotate with the first direction being the axis of rotation without disassembly and reassembly, so as to process different surfaces of the die head 400. On the one hand, this reduces the number of clamping operations during the processing of the die head 400, saving clamping time and manpower; on the other hand, it reduces dimensional abnormalities caused by secondary clamping of the die head 400, which is beneficial to improving the overall processing accuracy of the die head 400.

[0056] Specifically, the general-purpose tooling also includes a drive component 210, which is mounted on the second support base 200 and is used to drive the bridge plate 600 to rotate. By using the drive component 210 to replace manual operation in rotating the mold head 400 around the first direction as the axis of rotation to adjust the angle, the automation level is high and manpower is saved. More specifically, the drive component 210 is a motor.

[0057] In some embodiments, the bridge plate 600 is rotatably connected to the first support base 100 via a first rotating member 110, and the bridge plate 600 is detachably fixed to the first rotating member 110 via a fourth fastener 640; the bridge plate 600 is rotatably connected to the second support base 200 via a second rotating member 220, and the bridge plate 600 is detachably fixed to the second rotating member 220 via a fifth fastener 660. This arrangement allows the two ends of the bridge plate 600 to be assembled with the first rotating member 110 and the second rotating member 220 respectively, and facilitates disassembly for repair or replacement in case of component damage.

[0058] In some embodiments, a fourth through hole 630 is provided on one of the bridge plate 600 and the first rotating member 110, and a fourth threaded hole is provided on the other of the bridge plate 600 and the first rotating member 110. Preferably, the fourth through hole 630 is provided on the bridge plate 600 and the fourth threaded hole is provided on the first rotating member 110. A fourth fastener 640 is used to pass through the fourth through hole 630 and is threadedly connected to the fourth threaded hole.

[0059] like Figure 8 As shown, specifically, a fifth through hole 650 is provided on one of the bridge plate 600 and the second rotating member 220, and a fifth threaded hole 221 is provided on the other of the bridge plate 600 and the second rotating member 220. Preferably, the fifth through hole 650 is provided on the bridge plate 600 and the fifth threaded hole 221 is provided on the second rotating member 220. The fifth fastener 660 is used to pass through the fifth through hole 650 and is threadedly connected to the fifth threaded hole 221.

[0060] Specifically, a first positioning pin is provided on one of the first rotating member 110 and the bridge plate 600, and a first positioning hole is provided on the other of the first rotating member 110 and the bridge plate 600. Preferably, the first positioning pin is provided on the first rotating member 110 and the first positioning hole is provided on the bridge plate 600, and the first positioning hole matches the first positioning pin. The positioning is achieved by the cooperation of the first positioning pin and the first positioning hole, which ensures that the fourth through hole 630 is quickly aligned with the fourth threaded hole so that the fourth fastener 640 can be tightened into the fourth threaded hole.

[0061] like Figure 8As shown, specifically, a second positioning pin 222 is provided on one of the second rotating member 220 and the bridge plate 600, and a second positioning hole is provided on the other of the second rotating member 220 and the bridge plate 600. Preferably, the second positioning pin 222 is provided on the second rotating member 220, and the second positioning hole is provided on the bridge plate 600. The second positioning hole matches the second positioning pin 222. Through the cooperation of the second positioning pin 222 and the second positioning hole, the fifth through hole 650 is quickly aligned with the fifth threaded hole 221 so that the fifth fastener 660 can be tightened into the fifth threaded hole 221.

[0062] The usage process of the general tooling in this embodiment is as follows:

[0063] First, the first support base 100 and the second support base 200 are spaced apart along the first direction on the CNC machine tool's worktable, with the first positioning pin and the second positioning pin 222 facing upwards. Then, the first positioning hole and the second positioning hole of the lifting bridge plate 600 are aligned with the first positioning pin and the second positioning pin 222, respectively. Next, the bridge plate 600 is lowered so that the first positioning pin and the second positioning pin 222 are inserted into the corresponding first positioning hole and the second positioning hole, respectively. Then, the fourth fastener 640 and the fifth fastener 660 are used to connect the two sides of the bridge plate 600 to the first rotating member 110 and the second rotating member 220, respectively. Then, the first strip-shaped through groove 311 of each mounting block 313 is aligned and connected with the corresponding preset threaded hole 410 of the mold head 400, and then connected using the first fastener 320. Finally, the second strip-shaped through groove of each universal base block 510 is connected. After the through groove 511 is aligned and connected with the second threaded hole 312 of the corresponding mounting block 313, it is connected by the second fastener 520. Then, the die head 400 to be processed is lifted by a gantry crane after the mounting base and universal base 500 are assembled according to the above steps. The third through groove 512 on the universal base 500 and the corresponding third threaded hole 610 on the bridge plate 600 are aligned and placed on the bridge plate 600 and fixed with the third fastener 620. The bridge plate 600 can rotate freely 360° with the first direction as the axis of rotation. After the die head 400 is fixed on the bridge plate 600, during processing, the drive component 210 can drive the bridge plate 600 and the die head 400 to rotate to the required processing angle according to the CNC program instructions and then self-lock. This allows multiple surfaces of the die head 400 to be processed after one clamping of the die head 400.

[0064] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A universal tooling for die processing, characterized by, include: First support seat (100); The second support (200) is spaced apart from the first support (100) along a first direction; A mounting base is disposed between the first support base (100) and the second support base (200). The mounting base is provided with a first strip-shaped through groove (311), which is parallel to the first direction. A first fastener (320) is used to pass through the first strip groove (311) and be threadedly connected to a preset threaded hole (410) of the die head (400). The first fastener (320) can move in the first direction within the first strip groove (311).

2. The universal tooling for die machining of claim 1, wherein, It also includes a universal base (500), the mounting base being connected between the first support base (100) and the second support base (200) via the universal base (500); the mounting base includes at least two separately arranged mounting parts (310), a plurality of mounting parts (310) being arranged sequentially along the second direction, and each mounting part (310) being provided with the first strip-shaped through groove (311).

3. The universal tooling for die machining of claim 2, wherein, The mounting part (310) can move relative to the universal base (500) in a second direction and is locked by a second fastener (520), wherein the first direction and the second direction are perpendicular to each other.

4. The universal tooling for die machining of claim 3, wherein, The universal base (500) is provided with a second strip-shaped through groove (511), and the mounting part (310) is provided with a second threaded hole (312) corresponding to the position of the second strip-shaped through groove (511). The second fastener (520) is used to pass through the second strip-shaped through groove (511) and be threaded to the second threaded hole (312). The second fastener (520) can move in the second direction within the second strip-shaped through groove (511).

5. The universal tooling for die machining according to any one of claims 2 to 4, characterized in that, It also includes a bridge plate (600), and the universal base (500) is connected between the first support base (100) and the second support base (200) through the bridge plate (600); the mounting part (310) includes at least two separately arranged mounting blocks (313), and a plurality of the mounting blocks (313) are arranged sequentially along the first direction, and each mounting block (313) is provided with the first strip-shaped through groove (311); the universal base (500) includes at least two separately arranged universal bottom blocks (510), and a plurality of the universal bottom blocks (510) are arranged sequentially along the first direction, and the corresponding mounting block (313) is connected to the universal bottom block (510); the universal bottom block (510) can move relative to the bridge plate (600) along the first direction and is locked by a third fastener (620).

6. The universal tooling for die machining of claim 5, wherein, A third strip-shaped through groove (512) is provided on one of the bridge plate (600) and the universal base block (510), and a third threaded hole (610) is provided on the other of the bridge plate (600) and the universal base block (510) at a position corresponding to the third strip-shaped through groove (512). The third fastener (620) is used to pass through the third strip-shaped through groove (512) and be threadedly connected to the third threaded hole (610). The third fastener (620) can move in the third strip-shaped through groove (512) along a first direction.

7. The universal tooling for die machining of claim 5, wherein, The bridge plate (600) can be rotatably disposed between the first support base (100) and the second support base (200) in the first direction of the rotation axis direction.

8. The universal tooling for die machining of claim 7, wherein, It also includes a drive unit (210) for driving the bridge plate (600) to rotate.

9. The universal tooling for die machining of claim 7, wherein, The bridge plate (600) is rotatably connected to the first support base (100) via the first rotating member (110), and the bridge plate (600) is detachably fixed to the first rotating member (110) via the fourth fastener (640). The bridge plate (600) is rotatably connected to the second support base (200) via the second rotating member (220), and the bridge plate (600) is detachably fixed to the second rotating member (220) via the fifth fastener (660).

10. The universal tooling for die machining of claim 9, wherein, A first positioning pin is provided on one of the first rotating member (110) and the bridge plate (600), and a first positioning hole is provided on the other of the first rotating member (110) and the bridge plate (600), and the first positioning hole matches the first positioning pin. And / or, a second positioning pin (222) is provided on one of the second rotating member (220) and the bridge plate (600), and a second positioning hole is provided on the other of the second rotating member (220) and the bridge plate (600), the second positioning hole matching the second positioning pin (222).

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