Positioning jig and drilling machine

By using a first positioning component of a positioning fixture and a second positioning component driven by a motor during the drilling process of the IC carrier board, automated and precise positioning is achieved, solving the problems of low efficiency and high cost caused by manual operation, and achieving a high-efficiency and low-cost positioning effect.

CN223701015UActive Publication Date: 2025-12-23LEADING INTERCONNECT SEMICONDUCTOR TECHNOLOGY QINHUANGDAO CO LTD +1
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Patent Information

Application Number
CN202423261669.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-12-23
Estimated Expiration
2034-12-28

AI Technical Summary

Technical Problem

In the existing technology, manual pin knocking and pin removal during IC substrate drilling results in low efficiency, high cost, and unstable positioning accuracy.

Method used

A positioning fixture is used, including a fixed first positioning component and a movable second positioning component. Precise positioning is achieved by motor drive, and automated positioning is achieved by moving the second positioning pin as a reference.

Benefits of technology

It achieves efficient and low-cost automated positioning with a positioning accuracy of 0.0015mm, solving the problems of low efficiency and unstable accuracy caused by manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a positioning jig and a drilling machine. By arranging the fixed first positioning assembly and the second positioning assembly capable of moving in the first direction or the second direction, when a product needs to be positioned, a first positioning pin of the first positioning assembly can serve as a positioning reference, and only a second positioning pin of the second positioning assembly needs to be moved through a first motor and / or a second motor; therefore, accurate positioning of the product can be realized, and the problems of low efficiency, high cost and unstable positioning accuracy caused by manual PIN knocking and pulling are solved. According to the positioning jig, automatic product positioning is achieved, the efficiency is high, the cost is low, and the positioning precision is high.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of jigs, in particular to a positioning jig and a drilling machine. BACKGROUND

[0002] When an IC (Integrated Circuit) carrier plate is processed, a hole is drilled on the plate. The drilling process is generally as follows: a positioning PIN hole is drilled on a bakelite plate, the PIN is manually knocked into the PIN hole, the carrier plate is sleeved on the PIN for positioning and fixing, drilling is performed, and after drilling is completed, the PIN is pulled out. The manual PIN knocking and pulling method has a long operation process, low efficiency, and is prone to PIN skewing, unstable positioning accuracy, and high cost of the bakelite plate and the PIN as consumables. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a positioning jig to solve at least one of the above problems.

[0004] A positioning jig includes a bottom plate, a first positioning assembly, a second positioning assembly, and a cover plate. The first positioning assembly is arranged on the bottom plate, and includes a first positioning pin. The second positioning assembly is arranged on the bottom plate, and includes a first motor, a second motor, and a second positioning pin connected to the first motor and the second motor. The second positioning pin is configured to move relative to the bottom plate along a first direction under the drive of the first motor, and is configured to move relative to the bottom plate along a second direction under the drive of the second motor. The first direction and the second direction are perpendicular to each other, and both the first direction and the second direction are perpendicular to the thickness direction of the bottom plate. The cover plate is arranged opposite to the bottom plate, and a plurality of windows are arranged on the cover plate. The first positioning pin extends from one of the windows and has a certain movement space between the first positioning pin and the window. The second positioning pin extends from another window and has a certain movement space between the second positioning pin and the window.

[0005] In an embodiment, the first positioning assembly further includes a first fixing seat and a first mounting seat. The first mounting seat is fixed to the bottom plate, and the first fixing seat is fixed to the first mounting seat. One end of the first positioning pin is fixed to the first fixing seat, and the other end of the first positioning pin extends from the first fixing seat.

[0006] In one embodiment, the second positioning assembly further comprises a first moving base, a second moving base and a second fixed base. The first motor comprises a first guide rail, and the second motor comprises a second guide rail. The second guide rail is fixed to the first moving base, and the first moving base is connected to the first guide rail and is movable along the first guide rail. The second moving base is connected to the second guide rail and is movable along the second guide rail, and the second fixed base is fixed to the second moving base. One end of the second positioning pin is fixed to the second fixed base, and the other end of the second positioning pin extends out of the second fixed base.

[0007] In one embodiment, the positioning jig further comprises a third positioning assembly disposed on the bottom plate. The third positioning assembly comprises a third motor, a third moving base, a third mounting base, a third fixed base and a third positioning pin. The third motor comprises a third guide rail, and the third guide rail is arranged in parallel with the first guide rail. The third moving base is connected to the third guide rail and is movable along the third guide rail, and the third mounting base is fixed to the third moving base and is fixed to one end of the second guide rail away from the first guide rail. One end of the third positioning pin is fixed to the third fixed base, and the other end of the third positioning pin extends out of the third fixed base.

[0008] In one embodiment, the first guide rail and the third guide rail extend along the first direction, and the second guide rail extends along the second direction.

[0009] In one embodiment, the positioning jig further comprises a fourth positioning assembly disposed on the bottom plate, and the fourth positioning assembly comprises a fourth motor, a fourth moving base, a fourth fixed base and a fourth positioning pin. The fourth motor comprises a fourth guide rail, the fourth moving base is connected to the fourth guide rail and is movable on the fourth guide rail, and the fourth fixed base is fixed to the fourth moving base. One end of the fourth positioning pin is fixed to the fourth fixed base, and the other end of the fourth positioning pin extends out of the fourth fixed base.

[0010] In one embodiment, the fourth guide rail extends along the second direction.

[0011] In one embodiment, the positioning jig further comprises a plurality of connecting columns disposed between the bottom plate and the cover plate. One end of each connecting column is connected to the bottom plate, and the other end of each connecting column is connected to the cover plate.

[0012] In one embodiment, the positioning jig further comprises a control module and a backing plate. The control module is used to control the movement of the first motor and the second motor, and the backing plate is located on the surface of the cover plate away from the bottom plate, and the window is exposed from the backing plate.

[0013] One embodiment of this application provides a drilling machine, which includes a machine base and a positioning fixture as described above, the positioning fixture being disposed on the machine base.

[0014] This application, by setting a fixed first positioning component and a second positioning component that can move along a first or second direction, allows for precise product positioning when product positioning is required. The first positioning pin of the first positioning component serves as a positioning reference, and precise product positioning can be achieved simply by moving the second positioning pin of the second positioning component using a first motor and / or a second motor. This solves the problems of low efficiency, high cost, and unstable positioning accuracy caused by manually knocking and removing pins. The positioning fixture of this application achieves automated product positioning with high efficiency, low cost, and high positioning accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a positioning fixture according to one embodiment of this application.

[0016] Figure 2 for Figure 1 Top view of the positioning fixture shown.

[0017] Figure 3 for Figure 1 A schematic diagram of part of the positioning fixture shown.

[0018] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0019] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.

[0020] Figure 6 for Figure 3 Enlarged diagram of point C in the middle.

[0021] Figure 7 for Figure 3 Enlarged diagram of point D in the middle.

[0022] Figure 8 for Figure 1 A schematic diagram of the positioning fixture shown from another perspective.

[0023] Figure 9 for Figure 8 Enlarged diagram of point E in the middle.

[0024] Figure 10 for Figure 1 A schematic diagram of the positioning fixture shown from another perspective.

[0025] Figure 11 This is a schematic diagram of a drilling machine according to one embodiment of this application.

[0026] Explanation of main component symbols

[0027] 100: Positioning fixture; 10: Base plate; 20: First positioning component; 30: Second positioning component; 40: Cover plate; 50: Third positioning component; 60: Fourth positioning component; 70: Connecting column; 80: Control module; 90: Pad plate; 21: First positioning pin; 22: First fixed seat; 23: First mounting seat; 31: First motor; 32: Second motor; 33: Second positioning pin; 34: First movable seat; 35: Second movable seat; 36: Second fixed seat 311: First guide rail; 321: Second guide rail; 41: Window; 51: Third motor; 52: Third moving seat; 53: Third mounting seat; 54: Third fixed seat; 55: Third positioning pin; 511: Third guide rail; 61: Fourth motor; 62: Fourth moving seat; 63: Fourth fixed seat; 64: Fourth positioning pin; 611: Fourth guide rail; 200: Drilling machine; 201: Machine base; X: First direction; Y: Second direction; Z: Thickness direction.

[0028] The following detailed description, in conjunction with the accompanying drawings, further illustrates the embodiments of this application. Detailed Implementation

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application pertain. The terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the embodiments of this application. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] It will be understood that when a layer is referred to as "on" another layer, it can be directly on that other layer or there can be an intermediate layer in between. Conversely, when a layer is referred to as "directly on" another layer, there is no intermediate layer. When a component is referred to as "fixed to," "mounted to," "set on," or "connected to" another component, it can be directly on the other component or there can be an intermediate component.

[0032] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figures 1 to 3 The first aspect of this application provides a positioning fixture 100, which can position the IC carrier board (not shown) when drilling holes in it. Of course, the positioning fixture 100 is not limited to positioning when drilling holes in the IC carrier board; it can also be used for positioning other products.

[0035] Figure 1 A schematic diagram of the overall structure of the positioning fixture 100 is shown. Figure 2 A top view of the positioning fixture 100 is shown. Figure 3 A schematic diagram of part of the structure of the positioning fixture 100 after removing the cover plate 40 is shown. (See diagram below.) Figures 1 to 3 As shown, the positioning fixture 100 includes a base plate 10, a first positioning component 20, a second positioning component 30, and a cover plate 40. The base plate 10 and the cover plate 40 are disposed opposite to each other, and the first positioning component 20 and the second positioning component 30 are both disposed on the base plate 10. The base plate 10 and the cover plate 40 are generally plate-shaped structures with a certain thickness. The cover plate 40 is disposed above the base plate 10 along its thickness direction Z, and the cover plate 40 can be used to support the product to be positioned (e.g., an IC carrier board). The cover plate 40 has a plurality of openings 41, which penetrate the cover plate 40 along its thickness direction Z. The shape of the openings 41 can be regular or irregular, such as circular, rectangular, or triangular, and this application does not impose any limitations.

[0036] like Figures 1 to 3As shown, the first positioning component 20 includes a first positioning pin 21, which is fixed to the base plate 10. The second positioning component 30 includes a first motor 31, a second motor 32, and a second positioning pin 33, which is connected to both the first motor 31 and the second motor 32. The second positioning pin 33 can move relative to the base plate 10 in a first direction X under the drive of the first motor 31, and can move relative to the base plate 10 in a second direction Y under the drive of the second motor 32. The first direction X and the second direction Y are perpendicular, and both the first direction X and the second direction Y are perpendicular to the thickness direction Z of the base plate 10 (i.e., the thickness direction Z of the cover plate 40). The first direction X can be either the length direction or the width direction of the base plate 10, and this application does not limit this. The first positioning pin 21 extends from one of the openings 41, and the second positioning pin 33 extends from the other opening 41, with a certain amount of space between the second positioning pin 33 and the opening 41. It is understandable that when the second locating pin 33 moves along the first direction X or the second direction Y, it also moves within its extended opening 41.

[0037] By setting a fixed first positioning pin 21 and a second positioning pin 33 that can move along the first direction X or the second direction Y on the base plate 10, when the product needs to be positioned, the first positioning pin 21 can be used as a positioning reference. The product can be accurately positioned simply by moving the second positioning pin 33 through the first motor 31 and the second motor 32. This solves the problems of low efficiency, high cost and unstable positioning accuracy caused by manually knocking and pulling pins.

[0038] In some embodiments, such as Figure 3 and Figure 4 As shown, the first positioning component 20 also includes a first fixing seat 22 and a first mounting seat 23. The first mounting seat 23 is fixed to the surface of the base plate 10 facing the cover plate 40, and the first fixing seat 22 is fixed to the surface of the first mounting seat 23 away from the base plate 10 by means of, but not limited to, threaded fixing. One end of the first positioning pin 21 is fixed inside the first fixing seat 22, and the other end protrudes from the first fixing seat 22. The first positioning pin 21 may be, but is not limited to, cylindrical. In this embodiment, the first positioning component 20 may be located approximately near one corner of the base plate 10.

[0039] In some embodiments, such as Figure 3 and Figure 5As shown, the second positioning assembly 30 also includes a first movable seat 34, a second movable seat 35, and a second fixed seat 36. The first motor 31 has a first guide rail 311 extending generally along a first direction X. The second motor 32 has a second guide rail 321 extending generally along a second direction Y. The first guide rail 311 and the second guide rail 321 are arranged generally perpendicularly, and the second guide rail 321 can extend from one end of the base plate 10 along the second direction Y to intersect with and be above the first guide rail 311. The first movable seat 34 is located between the first guide rail 311 and the second guide rail 321, and the surface portion of the second guide rail 321 facing the first guide rail 311 contacts and connects with the first movable seat 34, thereby fixing the second guide rail 321 to the first movable seat 34. The first movable seat 34 is connected to the first guide rail 311 and can move along the first guide rail 311 (i.e., along the first direction X) under the drive of the first motor 31, thereby causing the second guide rail 321 to also move along the first direction X. The second movable seat 35 is connected to the second guide rail 321 and can move along the second guide rail 321 (i.e., move along the second direction Y) under the drive of the second motor 32. The second fixed seat 36 can be fixed to the surface of the second movable seat 35 away from the second guide rail 321 by means of, but not limited to, threaded fixing. One end of the second positioning pin 33 is fixed in the second fixed seat 36, and the other end protrudes from the second fixed seat 36. The second positioning pin 33 can be, but is not limited to, cylindrical.

[0040] When the first motor 31 is started, the first movable seat 34 drives the second guide rail 321 to move along the first guide rail 311, thereby causing the second positioning pin 33 on the second guide rail 321 to move along the first direction X. When the second motor 32 is started, the second movable seat 35 drives the second positioning pin 33 on it to move along the second guide rail 321, that is, along the second direction Y. The first motor 31 and the second motor 32 can work simultaneously, at which time the second positioning pin 33 moves both in the first direction X and in the second direction Y. Of course, the first motor 31 and the second motor 32 can also work in a staggered manner, which is not a limitation of this application.

[0041] Furthermore, both the first motor 31 and the second motor 32 can be linear motors. The linear motor can control the second positioning pin 33 to move linearly along the first direction X or the second direction Y, thereby achieving precise positioning of the second positioning pin 33 with a positioning accuracy of up to 0.0015mm.

[0042] In some embodiments, the positioning fixture 100 includes only two positioning components: a first positioning component 20 and a second positioning component 30. In this case, the first positioning component 20 and the second positioning component 30 can be arranged approximately opposite each other along the second direction Y, and the first positioning component 20 can be located at the middle of the first direction X. In other embodiments, such as...Figures 1 to 3 As shown, the positioning fixture 100 may further include a third positioning component 50 and a fourth positioning component 60 disposed on the base plate 10. The four positioning components may be located near the four corners of the base plate 10, respectively. Specifically, the first positioning component 20 and the second positioning component 30 may be arranged approximately opposite each other along one diagonal of the base plate 10, and the third positioning component 50 and the fourth positioning component 60 may be arranged approximately opposite each other along the other diagonal of the base plate 10. The first positioning component 20 and the third positioning component 50 may be spaced apart along a first direction X, the first positioning component 20 and the fourth positioning component 60 may be spaced apart along a second direction Y, and the second positioning component 30 and the fourth positioning component 60 may be spaced apart along the first direction X.

[0043] In some embodiments, such as Figure 3 and Figure 6 As shown, the third positioning component 50 includes a third motor 51, a third movable seat 52, a third mounting seat 53, a third fixed seat 54, and a third positioning pin 55. The third motor 51 has a third guide rail 511, which extends generally along the first direction X and is arranged parallel to the first guide rail 311. A second guide rail 321 extends above the first guide rail 311 and the third movable seat 52. The third movable seat 52 is connected to the third guide rail 511 and can move along the third guide rail 511 (i.e., along the first direction X) under the drive of the third motor 51. The third mounting seat 53 is fixed to the surface of the third movable seat 52 opposite to the third guide rail 511 and is fixed to the end of the second guide rail 321 away from the first guide rail 311. That is, the third mounting seat 53 can move along the first direction X on the third guide rail 511 under the drive of the third movable seat 52, and can also move along the first direction X under the drive of the second guide rail 321. One end of the third positioning pin 55 is fixed in the third fixing seat 54, and the other end extends out of the third fixing seat 54. There is a certain amount of room for movement between the third positioning pin 55 and the window 41. The third positioning pin 55 may be cylindrical, but is not limited to. In the third positioning assembly 50, the third positioning pin 55 can move along the first direction X, thereby further improving the alignment accuracy.

[0044] Furthermore, the third motor 51 can be a linear motor.

[0045] In some embodiments, such as Figure 3 and Figure 7As shown, the fourth positioning assembly 60 includes a fourth motor 61, a fourth movable seat 62, a fourth fixed seat 63, and a fourth positioning pin 64. The fourth motor 61 has a fourth guide rail 611, which extends generally along the second direction Y and is generally parallel to the second guide rail 321. The fourth movable seat 62 is connected to the fourth guide rail 611 and can move along the second direction Y on the fourth guide rail 611 under the drive of the fourth motor 61. The fourth fixed seat 63 can be fixed to the surface of the fourth movable seat 62 away from the fourth guide rail 611 by means of, but not limited to, threaded fixing. One end of the fourth positioning pin 64 is fixed in the fourth fixed seat 63, and the other end protrudes from the fourth fixed seat 63. The fourth positioning pin 64 can be cylindrical, but is not limited to, and there is a certain amount of space between the fourth positioning pin 64 and the opening 41. In the fourth positioning assembly 60, the fourth positioning pin 64 can move along the second direction Y, thereby further improving the alignment accuracy.

[0046] Furthermore, the fourth motor 61 can be a linear motor.

[0047] In some embodiments, such as Figure 3 , Figure 8 and Figure 9 As shown, the positioning fixture 100 also includes a plurality of connecting posts 70 disposed between the base plate 10 and the cover plate 40. The plurality of connecting posts 70 can be arranged in an array, and each connecting post 70 is of equal height. One end of each connecting post 70 is connected to the base plate 10, and the other end is connected to the cover plate 40, thereby fixing the base plate 10 and the cover plate 40. The connecting posts 70 have a certain height, so that there is a certain receiving space between the base plate 10 and the cover plate 40, thereby accommodating the aforementioned positioning components.

[0048] In some embodiments, the positioning fixture 100 further includes a control module 80 (see...). Figure 11 The control module 80 is used to control the first motor 31, the second motor 32, the third motor 51 and the fourth motor 61, and sends signal commands to the above motors to precisely control the displacement of the motors.

[0049] In some embodiments, such as Figure 9 and Figure 10 As shown, the positioning fixture 100 also includes a pad 90. The pad 90 can be disposed on the surface of the cover plate 40 opposite to the base plate 10. The pad 90 only covers a portion of the surface of the cover plate 40, and the opening 41 protrudes from the pad 90, so as not to affect the movement of the positioning pins. The pad 90 can be formed of resin and has a certain elasticity to provide a certain cushioning effect on the product when drilling holes, thereby protecting the product.

[0050] In some embodiments, the base plate 10 may be a stainless steel base plate, and the cover plate 40 may be a bakelite board.

[0051] Please see Figure 11A second aspect of this application provides a drilling machine 200, which includes a machine base 201 and a positioning fixture 100 as described above. The positioning fixture 100 can be fixed to the machine base 201 by means of, but not limited to, threaded fixing. Multiple positioning fixtures 100 may be provided on the machine base 201.

[0052] The positioning fixture 100 provided in this application embodiment, by setting a fixed first positioning component 20 (first positioning pin 21) and a second positioning component 30 (second positioning pin 33) movable along a first direction X or a second direction Y, can achieve precise positioning of the product when positioning is required. The first positioning pin 21 can serve as a positioning reference, and the second positioning pin 33 can be moved simply by the first motor 31 and / or the second motor 32, thus solving the problems of low efficiency, high cost, and unstable positioning accuracy caused by manually knocking and removing pins. The positioning fixture 100 provided in this application embodiment achieves automated product positioning with high efficiency, low cost, and high positioning accuracy.

[0053] The above description describes some specific embodiments of this application, but in actual applications, the application should not be limited to these embodiments. For those skilled in the art, other modifications and alterations made based on the technical concept of this application should fall within the protection scope of this application.

Claims

1. A positioning fixture, characterized in that, include: Base plate; A first positioning component is disposed on the base plate, and the first positioning component includes a first positioning pin; A second positioning component is disposed on the base plate. The second positioning component includes a first motor, a second motor, and a second positioning pin connected to both the first motor and the second motor. The second positioning pin is configured to move relative to the base plate in a first direction under the drive of the first motor, and is also configured to move relative to the base plate in a second direction under the drive of the second motor. The first direction and the second direction are perpendicular to each other, and both the first direction and the second direction are perpendicular to the thickness direction of the base plate. and A cover plate is disposed opposite to the base plate. The cover plate is provided with multiple openings. The first positioning pin extends out from one of the openings and has a certain amount of room for movement between it and the opening. The second positioning pin extends out from another opening and has a certain amount of room for movement between it and the opening.

2. The positioning fixture as described in claim 1, characterized in that, The first positioning component further includes a first fixed seat and a first mounting seat. The first mounting seat is fixed to the base plate, and the first fixed seat is fixed to the first mounting seat. One end of the first positioning pin is fixed to the first fixed seat, and the other end extends out from the first fixed seat.

3. The positioning fixture as described in claim 1, characterized in that, The second positioning component further includes a first movable seat, a second movable seat, and a second fixed seat. The first motor includes a first guide rail, and the second motor includes a second guide rail. The second guide rail is fixed to the first movable seat, and the first movable seat is connected to the first guide rail and can move along the first guide rail. The second movable seat is connected to the second guide rail and can move along the second guide rail. The second fixed seat is fixed to the second movable seat. One end of the second positioning pin is fixed to the second fixed seat, and the other end extends out of the second fixed seat.

4. The positioning fixture as described in claim 3, characterized in that, The positioning fixture further includes a third positioning component disposed on the base plate. The third positioning component includes a third motor, a third movable seat, a third mounting seat, a third fixed seat, and a third positioning pin. The third motor includes a third guide rail, which is arranged parallel to the first guide rail. The third movable seat is connected to the third guide rail and can move along the third guide rail. The third mounting seat is fixed to the third movable seat and fixed to the end of the second guide rail away from the first guide rail. One end of the third positioning pin is fixed to the third fixed seat, and the other end extends out of the third fixed seat.

5. The positioning fixture as described in claim 4, characterized in that, The first guide rail and the third guide rail extend along the first direction, and the second guide rail extends along the second direction.

6. The positioning fixture as described in claim 1, characterized in that, The positioning fixture further includes a fourth positioning component disposed on the base plate. The fourth positioning component includes a fourth motor, a fourth movable seat, a fourth fixed seat, and a fourth positioning pin. The fourth motor includes a fourth guide rail. The fourth movable seat is connected to the fourth guide rail and can move on the fourth guide rail. The fourth fixed seat is fixed to the fourth movable seat. One end of the fourth positioning pin is fixed to the fourth fixed seat, and the other end extends out of the fourth fixed seat.

7. The positioning fixture as described in claim 6, characterized in that, The fourth guide rail extends along the second direction.

8. The positioning fixture as described in claim 1, characterized in that, The positioning fixture also includes a plurality of connecting posts disposed between the base plate and the cover plate, with one end of each connecting post connected to the base plate and the other end connected to the cover plate.

9. The positioning fixture as described in claim 1, characterized in that, The positioning fixture also includes a control module and a pad. The control module is used to control the movement of the first motor and the second motor. The pad is located on the surface of the cover plate opposite to the base plate, and the opening protrudes from the pad.

10. A drilling machine, characterized in that, It includes a machine base and a positioning fixture as described in any one of claims 1 to 9, wherein the positioning fixture is disposed on the machine base.