Fixing equipment for circuit board of PCB (Printed Circuit Board) drilling machine

By combining the air clamp rear base plate, air clamp rear moving edge, air clamp rear fixed edge, and cylinder, stable and precise positioning of the PCB drilling machine circuit board is achieved, solving the problem of inaccurate positioning in the existing technology and improving processing accuracy.

CN223630475UActive Publication Date: 2025-12-05SHENZHEN HAOCHUANGSHENG TECH CO LTD
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Patent Information

Application Number
CN202423072395.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-12-05
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing PCB drilling machines are not precise enough when positioning PCBs, which affects processing accuracy and may even lead to PCB scrap and spindle damage.

Method used

It adopts a combination structure of air clamp rear base plate, air clamp rear moving edge, air clamp rear fixed edge and cylinder. The air clamp rear moving edge is driven by the cylinder to slide relative to the air clamp rear fixed edge to form a gap for placing the circuit board. The circuit board is stably and accurately positioned by the cooperation of guide rail and guide rail fixing block.

Benefits of technology

It improves the processing accuracy of PCB drilling machines, ensures the stable fixation of circuit boards, and avoids processing errors and equipment damage caused by inaccurate positioning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fixing device for a PCB (printed circuit board) drilling machine circuit board, which comprises a gas clamp rear bottom plate, a gas clamp rear movable edge, a gas clamp rear fixed edge and a cylinder, and a first mounting groove is arranged on the upper surface of the gas clamp rear bottom plate along the length direction of the gas clamp rear bottom plate. The pneumatic clamp rear movable edge and the pneumatic clamp rear fixed edge are arranged on the edges of the two sides of the first installation groove in the width direction of the pneumatic clamp rear bottom plate at intervals respectively, and an air cylinder used for driving the pneumatic clamp rear movable edge to slide back and forth relative to the pneumatic clamp rear fixed edge so as to fix or release the circuit board is arranged at the bottom of the pneumatic clamp rear bottom plate. The air cylinder can drive the air clamp movable edge to slide back and forth relative to the air clamp rear fixed edge, when the air cylinder drives the air clamp rear movable edge to slide in the direction deviating from the air clamp rear fixed edge, a gap used for containing a circuit board can be formed between the air clamp movable edge and the air clamp rear fixed edge, and when the circuit board is placed in the gap, the circuit board can be clamped in the gap. The air cylinder can drive the air clamp rear movable edge to slide relative to the direction of the air clamp rear fixed edge so as to fix the circuit board, and therefore stable and accurate positioning of the circuit board is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to PCB drilling machine technical field, especially relate to a kind of fixing equipment of PCB drilling machine circuit board. BACKGROUND

[0002] PCB Chinese name is printed circuit board, also called printed wiring board, is important electronic component, is the support body of electronic component, is the carrier of electrical interconnection of electronic component, the main advantage of using circuit board is to greatly reduce wiring and assembly error, improve automation level and production labor rate, the PCB drilling machine used now is all high-speed spindle, spindle is clamped to different diameter cutter by chuck, PCB is punched, therefore, PCB needs to be positioned stably and accurately, to improve machining precision, but the existing PCB positioning mode is mostly positioned by the appearance of PCB, but its positioning is not accurate enough, cannot meet the high-precision alignment requirement, to affect machining precision, even cause PCB scrap and spindle damage. SUMMARY

[0003] The utility model solves the technical problem that the existing PCB drilling machine is punched to PCB, the defect that positioning is not accurate enough to affect machining precision, provide a kind of fixing equipment of PCB drilling machine circuit board.

[0004] The technical scheme adopted by the utility model to solve the above technical problem is as follows:

[0005] Provide a kind of fixing equipment of PCB drilling machine circuit board, including air clamp rear bottom plate, air clamp rear dynamic edge, air clamp rear fixed edge and air cylinder, the first installation groove for placing air clamp rear dynamic edge and air clamp rear fixed edge is equipped on the upper surface of air clamp rear bottom plate along its length direction, air clamp rear dynamic edge and air clamp rear fixed edge are respectively arranged in the width direction of air clamp rear bottom plate and are spaced apart in the two side edges of first installation groove, the gap for placing circuit board is formed between air clamp rear fixed edge and air clamp rear dynamic edge, the bottom of air clamp rear bottom plate is equipped with air cylinder for driving air clamp rear dynamic edge to slide back and forth relative to air clamp rear fixed edge to fix or release circuit board, wherein,

[0006] The rear dynamic edge of the air clamp is slidably arranged in the first mounting slot through two guide rails, the two guide rails are respectively arranged at the bottom of the rear bottom plate of the air clamp along the width direction of the rear bottom plate of the air clamp, the two guide rails are respectively arranged at the bottom of the rear dynamic edge of the air clamp through a guide rail fixing block, the bottom of the rear bottom plate of the air clamp is provided with two second mounting slots which are respectively communicated with the first mounting slot and used for accommodating the guide rail fixing block, the second mounting slots respectively extend outward along the two sides of the width direction of the rear bottom plate of the air clamp, and each of the second mounting slots is provided with a containing cavity used for containing the guide rail, the two ends of the guide rail are respectively fixedly arranged in the containing cavities, the guide rail fixing block is fixedly arranged at the bottom of the rear dynamic edge of the air clamp, and the guide rail fixing block can slide back and forth relative to the guide rail.

[0007] Further, the bottom of the rear dynamic edge of the air clamp is detachably provided with a connecting piece, an avoiding slot used for avoiding the connecting piece is formed in the first mounting slot, the connecting piece is inserted into the avoiding slot and connected with the piston rod of the air cylinder, and the air cylinder can drive the rear dynamic edge of the air clamp to slide back and forth relative to the rear fixed edge of the air clamp through cooperation of the piston rod and the connecting piece.

[0008] Further, the top of the guide rail fixing block is provided with a plurality of first fixing holes, the rear dynamic edge of the air clamp is provided with a plurality of second fixing holes which are arranged on the upper and lower surfaces of the rear dynamic edge of the air clamp and correspond to the first fixing holes, and the guide rail fixing block is fixed at the bottom of the rear dynamic edge of the air clamp through cooperation of bolts, the first fixing holes and the second fixing holes, so as to fix the guide rail at the bottom of the rear dynamic edge of the air clamp.

[0009] Further, the top of the guide rail is respectively provided with a third fixing hole which penetrates the top and the bottom of the guide rail along the length direction of the guide rail, and each of the containing cavities is provided with a fourth fixing hole which penetrates the rear bottom plate of the air clamp and corresponds to the third fixing hole, and the guide rail is fixed in the containing cavities through cooperation of bolts, the third fixing holes and the fourth fixing holes.

[0010] Further, the top of the connecting piece is provided with two fifth fixing holes which are arranged at intervals, the rear dynamic edge of the air clamp is provided with two sixth fixing holes which penetrate the upper and lower surfaces of the rear dynamic edge of the air clamp and correspond to the fifth fixing holes, and the connecting piece is detachably connected at the bottom of the rear dynamic edge of the air clamp through cooperation of bolts, the fifth fixing holes and the sixth fixing holes.

[0011] Further, the top of the rear fixed edge of the air clamp is sequentially and intermittently provided with a plurality of seventh fixing holes which penetrate the upper and lower surfaces of the top of the rear fixed edge of the air clamp along the length direction of the top, the first mounting slot is provided with a plurality of eighth fixing holes which correspond to the seventh fixing holes, and the rear fixed edge of the air clamp is detachably fixed in the first mounting slot through cooperation of bolts, the seventh fixing holes and the eighth fixing holes.

[0012] Further, the inner surface of the first installation slot is provided with a third installation slot arranged along the length direction of the rear bottom plate of the air clamp, and the third installation slot corresponds to the gap between the rear movable edge of the air clamp and the rear fixed edge of the air clamp for placing the circuit board.

[0013] Further, the air cylinder is detachably fixed to the bottom of the rear bottom plate of the air clamp through an air cylinder fixing frame.

[0014] The fixing device for the circuit board of the PCB drilling machine provided in the above embodiments of the utility model comprises a rear bottom plate of an air clamp, a rear movable edge of the air clamp, a rear fixed edge of the air clamp and an air cylinder, a first installation slot is arranged on the upper surface of the rear bottom plate of the air clamp along the length direction of the rear bottom plate of the air clamp, the rear movable edge of the air clamp and the rear fixed edge of the air clamp are respectively arranged on the two side edges of the first installation slot along the width direction of the rear bottom plate of the air clamp, a gap for placing the circuit board can be formed between the rear movable edge of the air clamp and the rear fixed edge of the air clamp, and the bottom of the rear bottom plate of the air clamp is provided with the air cylinder for driving the rear movable edge of the air clamp to slide back and forth relative to the rear fixed edge of the air clamp to fix or release the circuit board, so that when the air cylinder works, the rear movable edge of the air clamp can slide back and forth relative to the guide rail through the cooperation of the guide rail fixing block and the guide rail, so that the air cylinder can drive the rear movable edge of the air clamp to slide back and forth relative to the rear fixed edge of the air clamp, when the air cylinder drives the rear movable edge of the air clamp to slide in the direction away from the rear fixed edge of the air clamp, a gap for placing the circuit board can be formed between the rear movable edge of the air clamp and the rear fixed edge of the air clamp, when the circuit board is placed in the gap, the air cylinder can drive the rear movable edge of the air clamp to slide relative to the rear fixed edge of the air clamp to fix the circuit board, so that the circuit board can be stably and accurately positioned, and the cutter clamped by the chuck of the main shaft of the PCB drilling machine can perform the punching work on the circuit board, so that the machining precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0016] Figure 1 It is the overall schematic view of the fixing device for the circuit board of the PCB drilling machine provided in an embodiment of the utility model.

[0017] Figure 2 It is the overall schematic view of the fixing device for the circuit board of the PCB drilling machine provided in an embodiment of the utility model from another angle.

[0018] Figure 3 It is the overall schematic view of the fixing device for the circuit board of the PCB drilling machine provided in an embodiment of the utility model from still another angle.

[0019] Figure 4 is Figure 3 is an enlarged schematic view of A in FIG.

[0020] Figure 5 is Figure 3 is an enlarged schematic view of B in FIG.

[0021] Figure 6 is a top view of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0022] Figure 7 is Figure 6 is an enlarged schematic view of C in FIG.

[0023] Figure 8 is an exploded schematic view of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0024] Figure 9 is another exploded schematic view of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0025] Figure 10 is a structural schematic view of the rear fixed edge of the air clamp of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0026] Figure 11 is a structural schematic view of the rear movable edge of the air clamp of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0027] Figure 12 is a structural schematic view of the connecting piece of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0028] Figure 13 is a structural schematic view of the assembly of the guide rail and the guide rail fixing block of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application.

[0029] Figure 14 is a structural schematic view of the rear bottom plate of the air clamp of the fixing device of the PCB drilling machine circuit board according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0031] Please refer to Figures 1 to 14The utility model provides a kind of PCB drilling machine circuit board's fixed equipment, including air clamp rear bottom plate 10, air clamp rear dynamic edge 20, air clamp rear fixed edge 30 and cylinder 40, first installation groove 11 for placing air clamp rear dynamic edge 20 and air clamp rear fixed edge 30 is equipped with on the upper surface of air clamp rear bottom plate 10 along its length direction, air clamp rear dynamic edge 20 and air clamp rear fixed edge 30 are respectively arranged in the two side edges of first installation groove 11 along the width direction of air clamp rear bottom plate, the gap 12 for placing circuit board can be formed between air clamp rear dynamic edge 20 and air clamp rear fixed edge 30, the bottom of air clamp rear bottom plate 10 is equipped with cylinder 40 for driving air clamp rear dynamic edge 20 to slide back and forth relative to air clamp rear fixed edge 30 to fix or release circuit board, wherein, air clamp rear dynamic edge 20 is slidably arranged in first installation groove 11 by two guide rails 50, two guide rails 50 are respectively arranged in the bottom of air clamp rear bottom plate 10 along the width direction of air clamp rear bottom plate 10, two guide rails 50 are respectively arranged in the bottom of air clamp rear dynamic edge 20 by a guide rail fixed block 60, the bottom of air clamp rear bottom plate 10 is equipped with two second installation grooves 13 for accommodating guide rail fixed block 60 and being communicated with first installation groove 11, second installation groove 13 is respectively outwardly extended along the two sides of the width direction of air clamp rear bottom plate 10 and is equipped with a containing cavity 14 for accommodating guide rail 50, the two ends of guide rail 50 are respectively fixedly arranged in containing cavity 14, guide rail fixed block 60 is fixedly arranged in the bottom of air clamp rear dynamic edge 20, guide rail fixed block 60 can slide back and forth relative to guide rail 50, so that, when cylinder 40 works, air clamp rear dynamic edge 20 can slide back and forth relative to guide rail 50 by the cooperation of guide rail fixed block 60 and guide rail 50, so that cylinder 40 can drive air clamp dynamic edge 20 to slide back and forth relative to air clamp rear fixed edge 30, when cylinder 40 drives air clamp rear dynamic edge 20 to slide in the direction away from air clamp rear fixed edge 30, the gap 12 for placing circuit board can be formed between air clamp dynamic edge 20 and air clamp rear fixed edge 30, when circuit board is placed in the gap 13, cylinder 40 can drive air clamp rear dynamic edge 20 to slide relative to the direction of air clamp rear fixed edge 30 to fix circuit board, to realize the positioning of the stable and accurate of circuit board, so that the main shaft of PCB drilling machine is clamped by the tool of chuck, and the circuit board is punched, to improve processing precision.

[0032] In the embodiment, as Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 、 Figure 9 and Figure 12As shown, the bottom of the rear movable edge 20 is detachably provided with a connecting piece 70, the first mounting groove 11 is provided with an avoiding groove 15 penetrating the upper and lower surfaces thereof and used for avoiding the connecting piece 70, the connecting piece 70 is inserted into the avoiding groove 15 and extends out of the avoiding groove 15 to be connected with the piston rod 41 of the air cylinder 40, the air cylinder 40 drives the rear movable edge 20 to slide back and forth relative to the rear fixed edge 30 through the cooperation of the piston rod 41 and the connecting piece 70, since the connecting piece 70 is detachably arranged at the bottom of the rear movable edge 20, the air cylinder 40 drives the rear movable edge 20 to slide back and forth relative to the rear fixed edge 30 through the cooperation of the piston rod 41 and the connecting piece 70, so as to fix the circuit board, thereby realizing stable and accurate positioning of the circuit board, so that the cutter clamped by the chuck of the main shaft of the PCB drilling machine performs the drilling work on the circuit board, thereby improving the machining precision.

[0033] In the embodiment, the top of the guide rail fixing block 60 is provided with a plurality of first fixing holes 61, the rear movable edge 20 is provided with a plurality of second fixing holes 21 penetrating the upper and lower surfaces thereof and corresponding to the first fixing holes 61, the guide rail fixing block 60 is fixed at the bottom of the rear movable edge 20 through the cooperation of bolts, the first fixing holes 61 and the second fixing holes 21, so as to fix the guide rail 50 at the bottom of the rear movable edge 20, thus the rear movable edge 20 slides back and forth relative to the guide rail 50 through the cooperation of the guide rail fixing block 60 and the guide rail 50 when the air cylinder 40 works, so that the air cylinder 40 drives the rear movable edge 20 to slide back and forth relative to the rear fixed edge 30.

[0034] In the embodiment, the top of the guide rail 50 is provided with a third fixing hole 51 penetrating the top and bottom thereof at both sides along the length direction thereof, the two accommodating cavities 14 are respectively provided with fourth fixing holes 16 penetrating the rear bottom plate and corresponding to the third fixing holes 51, the guide rail 50 is fixed in the accommodating cavities 14 through the cooperation of bolts, the third fixing holes 51 and the fourth fixing holes 16, thus the rear movable edge 20 slides back and forth relative to the guide rail 50 through the cooperation of the guide rail fixing block 60 and the guide rail 50 when the air cylinder 40 works, so that the air cylinder 40 drives the rear movable edge 20 to slide back and forth relative to the rear fixed edge 30.

[0035] In the embodiment, the connecting piece 70 is provided with two fifth fixing holes 71 arranged at intervals at the top, the rear movable edge 20 of the air clamp is provided with two sixth fixing holes 22 penetrating the upper and lower surfaces and arranged in correspondence with the fifth fixing holes 71, and the connecting piece 70 is detachably connected to the bottom of the rear movable edge 20 of the air clamp through cooperation of bolts, the fifth fixing holes 71 and the sixth fixing holes 22, so that the air cylinder 40 can drive the rear movable edge 20 of the air clamp to slide back and forth relative to the rear fixed edge 30 of the air clamp through cooperation of the piston rod 41 and the connecting piece 70, so as to fix the circuit board, thereby realizing stable and accurate positioning of the circuit board, and the cutter clamped by the chuck of the main shaft of the PCB drilling machine can perform drilling work on the circuit board, thereby improving the machining precision.

[0036] In the embodiment, the rear fixed edge 30 of the air clamp is provided with a plurality of seventh fixing holes 31 penetrating the upper and lower surfaces and arranged at intervals along the length direction at the top, the first mounting groove 11 is provided with a plurality of eighth fixing holes 17 arranged in correspondence with the seventh fixing holes, and the rear fixed edge 30 of the air clamp is detachably fixed in the first mounting groove 11 through cooperation of bolts, the seventh fixing holes 31 and the eighth fixing holes 71, so that the air cylinder 40 can drive the rear movable edge 20 of the air clamp to slide back and forth relative to the rear fixed edge 30 of the air clamp.

[0037] In the embodiment, the inner surface of the first mounting groove 11 between the rear movable edge 20 of the air clamp and the rear fixed edge 30 of the air clamp is provided with a third mounting groove 111 arranged along the length direction of the rear bottom plate 10 of the air clamp, and the third mounting groove 111 corresponds to the gap 12 for placing the circuit board formed between the rear movable edge 20 of the air clamp and the rear fixed edge 30 of the air clamp, so that when the circuit board is placed in the gap 13, the bottom of the circuit board can be placed in the third mounting groove 111 to play a fixing role, the air cylinder 40 can drive the rear movable edge 20 of the air clamp to slide relative to the rear fixed edge 30 of the air clamp to fix the circuit board, thereby realizing stable and accurate positioning of the circuit board, and the cutter clamped by the chuck of the main shaft of the PCB drilling machine can perform drilling work on the circuit board, thereby improving the machining precision.

[0038] In the embodiment, the air cylinder 40 is detachably fixed to the bottom of the rear bottom plate 10 of the air clamp through an air cylinder fixing frame 41.

[0039] The fixing equipment of the PCB drilling machine circuit board provided by the above-mentioned embodiment of the utility model, including air clamp back bottom plate, air clamp back moving edge, air clamp back fixed edge and air cylinder, first installation groove is equipped on air clamp back bottom plate upper surface along its length direction, air clamp back moving edge and air clamp back fixed edge are respectively arranged in first installation groove two side edges along air clamp back bottom plate width direction interval, air clamp back moving edge and air clamp back fixed edge can form a gap for placing circuit board, the bottom of air clamp back bottom plate is equipped with air cylinder for driving air clamp back moving edge to slide back and forth relative to air clamp back fixed edge to fix or release circuit board, in this way, when the air cylinder works, air clamp back moving edge can slide back and forth relative to guide rail through the cooperation of guide rail fixing block and guide rail, so that the air cylinder can drive air clamp moving edge to slide back and forth relative to air clamp back fixed edge, when the air cylinder drives air clamp back moving edge to slide in the direction of departing from air clamp back fixed edge, a gap for placing circuit board can be formed between air clamp moving edge and air clamp back fixed edge, when circuit board is placed in the gap, the air cylinder can drive air clamp back moving edge to slide relative to the direction of air clamp back fixed edge to fix circuit board, so as to realize the stable and accurate positioning of the circuit board, so that the main shaft of the PCB drilling machine clamps the cutter through the chuck, and the circuit board is punched, so as to improve the machining precision.

[0040] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A PCB drill machine board fixing device, characterized by, The utility model provides a back air clamp, back air clamp dynamic edge, back air clamp fixed edge and air cylinder, the upper surface of back air clamp is equipped with a first installation groove for placing back air clamp dynamic edge and back air clamp fixed edge along its length direction, back air clamp dynamic edge and back air clamp fixed edge are respectively arranged in the two side edges of first installation groove along the width direction of back air clamp, the gap for placing circuit board is formed between back air clamp fixed edge and back air clamp dynamic edge, the bottom of back air clamp is equipped with air cylinder for driving back air clamp dynamic edge to slide back and forth relative to back air clamp fixed edge to fix or release circuit board, Back air clamp dynamic edge is slidably arranged in first installation groove through two guide rails, two guide rails are respectively arranged in the bottom of back air clamp along the width direction of back air clamp, two guide rails are respectively arranged in the bottom of back air clamp dynamic edge through guide rail fixed block, the bottom of back air clamp is equipped with two second installation grooves for accommodating guide rail fixed block and being communicated with first installation groove, the two sides of second installation groove along the width direction of back air clamp extend outward and are equipped with accommodating cavity for accommodating guide rail, the two ends of guide rail are fixedly arranged in accommodating cavity, guide rail fixed block is fixedly arranged in the bottom of back air clamp dynamic edge, and guide rail fixed block can slide back and forth relative to guide rail.

2. The PCB drill press routing board fixture of claim 1, wherein, The bottom of back air clamp dynamic edge is detachably equipped with connecting piece, a avoiding groove for avoiding connecting piece is formed in first installation groove, connecting piece is inserted in avoiding groove and is connected with piston rod of air cylinder, air cylinder can drive back air clamp dynamic edge to slide back and forth relative to back air clamp fixed edge through the cooperation of piston rod and connecting piece.

3. The PCB drill press routing board fixture of claim 1, wherein, The top of guide rail fixed block is equipped with a plurality of first fixed holes, back air clamp dynamic edge is equipped with a plurality of second fixed holes penetrating its upper and lower surfaces and being correspondingly arranged with first fixed holes, guide rail fixed block is fixed in the bottom of back air clamp dynamic edge through the cooperation of bolt, first fixed hole and second fixed hole, so as to fix guide rail in the bottom of back air clamp dynamic edge.

4. The PCB drill press routing board fixture of claim 1, wherein, The top of guide rail is equipped with a third fixed hole penetrating the top and bottom of guide rail along its length direction, the two accommodating cavities are respectively equipped with a fourth fixed hole penetrating back air clamp and being correspondingly arranged with third fixed hole, guide rail is fixed in accommodating cavity through the cooperation of bolt, third fixed hole and fourth fixed hole.

5. The PCB drill press routing board fixture of claim 2, wherein, The top of connecting piece is equipped with two spaced fifth fixed holes, back air clamp dynamic edge is equipped with two sixth fixed holes penetrating its upper and lower surfaces and being correspondingly arranged with fifth fixed hole, connecting piece is detachably connected in the bottom of back air clamp dynamic edge through the cooperation of bolt, fifth fixed hole and sixth fixed hole.

6. The PCB drill press apparatus of claim 1, wherein, The air clamp rear fixed edge top is sequentially and spacedly provided with a plurality of seventh fixing holes penetrating through its upper and lower surfaces along its length direction, the first mounting groove is provided with a plurality of eighth fixing holes corresponding to the seventh fixing holes, and the air clamp rear fixed edge is detachably fixed in the first mounting groove through cooperation of bolts, the seventh fixing holes and the eighth fixing holes.

7. The PCB drill press apparatus of claim 1, wherein, The inner surface of the first mounting groove between the air clamp rear movable edge and the air clamp rear fixed edge is provided with a third mounting groove arranged along the length direction of the air clamp rear bottom plate, and the third mounting groove corresponds to the gap between the air clamp rear movable edge and the air clamp rear fixed edge for placing the circuit board.

8. The PCB drill press apparatus of claim 1, wherein, The air cylinder is detachably fixed at the bottom of the air clamp rear bottom plate through an air cylinder fixing frame.