CN116321721A - A new type of fixing device for PCB board processing - Google Patents

Abstract

The invention relates to the technical field of circuit board processing equipment, and particularly discloses a novel fixing device for PCB processing, which comprises a workbench and supporting pieces detachably connected with the inner walls of two sides of the workbench, wherein each supporting piece comprises a supporting plate and adjusting components which are respectively arranged at two ends of the supporting plate and are used for installing a PCB, each adjusting component comprises an arc-shaped table, a first telescopic rod piece and a second telescopic rod piece which are respectively arranged at two sides of the arc-shaped table, a fan-shaped table top fixedly connected at the inner side of the arc-shaped table and a positioning disc which is coaxial with the fan-shaped table top and is rotationally connected with the fan-shaped table top, the upper end face of the positioning disc is also provided with a positioning structure for fixing the PCB, two ends of the supporting plate are respectively fixedly connected with main positioning shafts, and the main positioning shafts are respectively rotationally connected with the first telescopic rod piece and the second telescopic rod piece of the same side adjusting components, so that the problem that the traditional PCB can only be used for processing the adapted PCB when being installed on the workbench is solved, and the PCB with other specifications can not be processed.

Description

A new type of fixing device for PCB board processing

technical field

The application relates to the technical field of circuit board processing equipment, and specifically discloses a novel fixing device for PCB board processing.

Background technique

PCB board, also known as printed circuit board, also known as printed circuit board, is the provider of electrical connections for electronic components. The design of the printed circuit board is mainly the layout design; the main advantage of using the circuit board is to greatly reduce the errors of wiring and assembly, and improve the automation level and production labor rate.

Based on the above advantages, PCB boards are mainly used in the following four fields: medical equipment field: such as PH meter, heartbeat sensor and temperature measurement, etc.; industrial equipment field: such as arc welding, large servo motor drive and clothing cotton machine, etc.; lighting application Fields: such as the application of LED lights; the application of PCB boards can be found everywhere in the automotive and aerospace industries.

With the increase of PCB usage, its production requirements are gradually increasing. In the process of PCB processing, the PCB board is generally installed on the working platform to be processed, and then fixed on the working platform by negative pressure adsorption. At the same time, because the shape of the PCB board is diverse, according to different work needs and the limitation of the size of the installation site, the PCB board has many shapes, such as rhombus, rectangle, circle, pentagon, etc., and some irregular shapes, For the processing of different types of PCB boards, different working platforms are required, but the same processing platform cannot be used to process PCB boards of different styles, which has many inconveniences.

Therefore, in view of this, the inventor provides a novel fixing device for PCB board processing in order to solve the above problems.

Contents of the invention

The purpose of the present invention is to solve the problem that when the traditional PCB board is installed on the work platform for processing, only the adapted PCB board can be processed, and the PCB board of other specifications and sizes cannot be processed.

In order to achieve the above purpose, the basic solution of the present invention provides a new type of fixture for PCB board processing, including a workbench and supports that are detachably connected to the inner walls on both sides of the workbench. The support plate and the adjustment components respectively arranged at both ends of the support plate and used to install the PCB board;

The adjustment components all include an arc table, auxiliary positioning shafts respectively fixed on both sides of the lower end surface of the arc table, the first telescopic rod and the second telescopic rod which are respectively rotatably connected to the auxiliary positioning shafts on both sides and can be fastened freely. Parts, the fan-shaped table fixed on the inner side of the arc-shaped table and the positioning disc that is coaxial with the fan-shaped table and is rotatably connected with the fan-shaped table. There is also a positioning structure for fixing the PCB board on the upper end of the disk;

Both ends of the support plate are fixedly connected with main positioning shafts respectively, and the main positioning shafts are respectively rotatably connected with the first telescopic rod and the second telescopic rod of the adjustment assembly on the same side, and the main positioning shaft is also equipped with a fixed first telescopic rod. The fixing structure of the rod and the second telescopic rod.

Further, the outer side of the support plate can be detachably connected with a connecting plate, and the side of the connecting plate away from the supporting plate is detachably connected with the inner wall of the workbench.

Further, the first telescopic rod includes a first sleeve and a first sliding rod slidably connected with the first sleeve, the upper end surface of the first sliding rod has triangular grooves in a staggered array along the sliding direction, and the first sleeve is close to the first One end of the slide bar is provided with a card slot that can accommodate a single triangular slot, and a triangular pin that is engaged with the triangular slot and offset against the inner wall of the card slot can be placed in the card slot. There is a first installation ring, and the first installation ring is rotatably connected with the main positioning shaft and the auxiliary positioning shaft respectively.

Further, the second telescopic rod includes a second sleeve and a second sliding rod slidably connected to the second sleeve, the upper end surface of the second sliding rod has triangular grooves in a staggered array along the sliding direction, and the second sleeve is close to the second One end of the slide bar is provided with a card slot that can accommodate a single triangular slot exposed, and a triangular pin that is engaged with the triangular slot and offset against the inner wall of the card slot can be placed in the card slot. There is a second mounting ring, and the second mounting ring is rotatably connected with the main positioning shaft and the auxiliary positioning shaft respectively.

Further, the main positioning shaft between the first mounting ring and the second mounting ring is also affixed with an isolation ring, the two ends of the main positioning shaft are also affixed with baffle plates, and the fixing structures are respectively arranged on the main positioning shafts on both sides of the isolation ring. on axis.

Further, the fixing structure includes external threads provided on the main positioning shaft on both sides of the spacer ring and nuts respectively engaged with the external threads, and abutment platforms are provided on the ends of the nuts away from each other.

Further, the positioning structure includes an insertion rod that can be inserted into the positioning hole of the PCB board and limit blocks that are respectively slidably connected to both sides of the insertion rod but cannot be completely slid out. The positioning block is also a through groove for the sliding of the limiting block, and a third spring is fixedly connected between the through groove and the limiting block.

Furthermore, rounded corners for transition are provided between the bottom end surface, the top end surface and the side surfaces of the limiting block.

Further, the positioning structure also includes a positioning groove provided on the positioning disk and a pressure ring that is slidably connected with the positioning groove and cannot be fully extended out of the positioning groove. There are spherical blocks on both sides, and the inner wall of the pressure ring is respectively provided with spherical grooves that can be engaged with the spherical blocks and used to fix the protruding position of the insertion rod. The bottom end of the pressure ring is provided with a second spring, and the bottom end of the insertion rod is provided with Fourth spring.

Further, a manual pressing block is provided at the top of the insertion rod.

The principle and effect of this basic scheme are as follows:

1. The present invention can adjust the first telescopic rod and the second telescopic rod according to the size and shape of the PCB board to be processed through the support plate and the adjustment components on both sides of the support plate. At the same time, by rotating the first installation The position of the ring and the second mounting ring on the main positioning axis can adjust the distance and direction between the four positioning discs to match the size and shape of the PCB board to be processed. This is the preliminary positioning during PCB board processing.

2. In the process of preliminary positioning, pull out the first slide bar, the second slide bar or push the first slide bar and the second slide bar inward to carry out the corresponding arc table and the corresponding positioning disc. Position adjustment, after the adjustment is completed, the triangular pin can be inserted into the corresponding triangular slot to complete the fixing of the length of the first telescopic rod and the second telescopic rod, and at the same time complete the installation of the first telescopic rod through the fixing structure on the main positioning member. ring and the positioning of the second mounting ring to complete the initial positioning.

3. After the preliminary positioning is completed, it is precise positioning. By moving the toggle table inward, and then rotating the positioning disc, the positioning structure on the positioning disc is opposite to the positioning hole on the PCB, and then loosen the toggle table. The positioning disc can be fixed to complete precise positioning.

4. After the precise positioning is completed, the PCB board can be placed on the positioning disc. At this time, the PCB board will press down the pressure ring. When the PCB board presses the pressure ring into the positioning groove and is flat with the end face of the positioning disc, The limit block comes out of the pressure ring. At this time, the fourth spring pushes the insertion rod, and the limit block moves synchronously with the insertion rod until the spherical block at the bottom of the insertion rod is placed in the spherical groove. At this time, the limit block is located on the PCB. Above the board, and in contact with the end surface of the PCB board, the PCB board can be fixed at this time for subsequent processing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 shows a schematic diagram of a novel fixture for PCB board processing proposed in the embodiment of the present application;

Fig. 2 shows the front view of a novel fixture for PCB board processing proposed by the embodiment of the present application;

Fig. 3 shows the schematic diagram of the adjustment assembly of a novel PCB board processing fixture device proposed by the embodiment of the present application;

Fig. 4 shows the schematic diagram of the adjustment assembly of a novel PCB board processing fixture device proposed by the embodiment of the present application;

Fig. 5 shows the schematic diagram of the positioning of a novel PCB board processing fixing device proposed in the embodiment of the present application;

Fig. 6 shows a cross-sectional view of a positioning structure of a novel fixing device for PCB board processing proposed by an embodiment of the present application;

FIG. 7 shows a schematic diagram of a toggle table of a novel fixing device for PCB board processing proposed by an embodiment of the present application.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

The reference signs in the drawings of the description include: workbench 1, support plate 2, arc table 3, positioning disc 4, first slide bar 5, second sleeve 6, PCB board 7, first sleeve 8, Baffle plate 9, toggle table 10, first installation ring 11, second installation ring 12, gear 13, spacer ring 14, fan-shaped table top 15, pressure ring 16, insertion rod 17, guide table 18, limit block 19, Manual briquetting 20.

A new type of fixture for PCB board processing, the embodiment is shown in Figure 1:

It includes a workbench 1 and supports respectively installed on the inner side of the workbench 1 and used for installing the PCB board 7 . A rectangular cavity for accommodating supports and PCB boards 7 is opened on the workbench 1 .

The supports each include a support plate 2 and two sets of adjustment assemblies respectively installed on both sides of the support plate 2 .

On the outside of the support plate 2, a connecting plate can also be installed by bolts respectively. On the inner walls on both sides of the workbench 1, a boss is integrally formed with respect to the two sides of the connecting plate respectively. A card slot is integrally formed with a first card block, and the first card block can be inserted into the first card slot. Moreover, the connecting plate and the boss can also be fixed by screws.

The adjustment components all include an arc-shaped platform 3, a positioning disc 4 and two groups of telescopic rods respectively installed at both ends of the arc-shaped platform 3.

As shown in FIG. 4 , the arc-shaped platform 3 is arc-shaped as a whole, and the openings of the arc-shaped platform 3 all face the side away from the support plate 2 . And two ends of the arc-shaped platform 3 are respectively opened with a through hole of equal diameter. A fan-shaped table top 15 is integrally formed inwardly on the inner side of the arc-shaped table 3 , and the center of the fan-shaped table 15 is coaxial with the corresponding circle center of the arc-shaped table 3 . There is also a first arc groove inside the arc table 3, and a second arc groove at the junction of the arc table 3 and the fan-shaped table top 15, and the two ends of the second arc groove run through the arc. Shaped platform 3 and the two side end surfaces of fan-shaped platform 15 joints.

The positioning disc 4 is a circle as a whole as shown in FIG. 1 . A toothed disc is installed at the lower end of the positioning disc 4, the toothed disc is coaxial with the positioning disc 4, and the outer side of the toothed disc is integrally formed with some equidistant teeth. And the center of circle of the positioning disc 4 and the gear disc has an axis hole, and a rotating shaft is installed on the fan-shaped table top 15, and the positioning disc 4 and the gear disc are installed on the fan-shaped table top 15 through the cooperation of the shaft hole and the rotating shaft, and Can be rotated on the fan-shaped table top 15. In addition, a ring platform is integrally formed on the rotating shaft, and a ring groove which engages with the ring platform and can accommodate the ring platform to slide inside is opened in the shaft hole.

On the lower end surface of the toothed plate, a circle of closed engagement platforms is integrally formed, and the engagement platforms can be placed in the second arc-shaped grooves and can slide in the second arc-shaped grooves. As shown in FIG. 7 , in the first arc-shaped groove, a toggle table 10 is also installed, and the wave table is also arc-shaped, and the center of circle of the toggle table 10 is also the center of circle of the fan-shaped table top 15 . Three sets of first springs are installed between the outer wall of the toggle table 10 and the inner wall of the first arc-shaped groove. A guide groove is formed on the inner bottom surface of the first arc-shaped groove, and a guide block sliding in the guide groove is integrally formed on the bottom surface of the toggle table 10 . At both ends of the toggle table 10, two locking teeth that can be placed between adjacent teeth of the toothed disc are integrally formed respectively.

A positioning structure for fixing the PCB board 7 is also provided on the positioning disc 4 .

As shown in FIG. 3 and FIG. 4 , the two sets of telescopic rods respectively include a first telescopic rod and a second telescopic rod.

The first telescopic rod includes a first sleeve 8 and a first sliding rod 5 . The first sliding rod 5 is slidably installed in the first sleeve 8 and can slide out of the first sleeve 8 . A first mounting ring 11 is integrally formed at the free ends of the first sleeve 8 and the first sliding rod 5 , that is, the ends away from each other. On the upper end surface of the first sliding rod 5 , there are two triangular grooves interlaced in an array along the sliding direction, and on the upper end surface of the first sleeve 8 , there is a locking groove communicating with the inner cavity. The card slot can expose a complete triangular slot, and a triangular pin can be inserted inward through the card slot, and the triangular pin can be placed in the triangular slot. After the triangular pin is inserted into the triangular slot, the top end of the triangular pin is located in the slot and is flush with the upper surface of the first sleeve 8 .

The second telescopic rod includes a second sleeve 6 and a second sliding rod. The second sliding rod is slidably installed in the second sleeve 6 and can slide out of the second sleeve 6 . A second mounting ring 12 is integrally formed at the free ends of the second sleeve 6 and the second sliding rod, that is, the ends away from each other. On the upper end surface of the second sliding rod, there are two triangular grooves interlaced in an array along the sliding direction, and on the upper end surface of the second sleeve 6, there is a locking groove communicating with the inner cavity. The card slot can expose a complete triangular slot, and a triangular pin can be inserted inward through the card slot, and the triangular pin can be placed in the triangular slot. After the triangular pin is inserted into the triangular slot, the top end of the triangular pin is located in the slot and is flush with the upper surface of the first sleeve 8 .

Also have a through hole respectively at the two ends of support plate 2, all fixedly install a main positioning shaft in the through hole, also all fixedly install a secondary positioning shaft at the two ends of arc table 3 respectively. A spacer ring 14 is also installed in the middle section on the main positioning shaft. A baffle plate 9 is integrally formed at both ends of the main positioning shaft.

As shown in FIG. 3 , the first installation ring 11 on the first slide bar 5 is installed on the main positioning shaft above the spacer ring 14 and can rotate on the main positioning shaft. The first mounting ring 11 of the first sleeve 8 is installed on the auxiliary positioning shaft outside the arc table 3, and can also rotate on the auxiliary positioning shaft. The second mounting ring 12 on the second slide bar is installed on the main positioning shaft below the spacer ring 14, and can rotate on the main positioning shaft. The second mounting ring 12 of the second sleeve 6 is installed on the secondary positioning shaft inside the arc table 3, and can also rotate on the secondary positioning shaft.

On the auxiliary positioning shaft, there are limit ring grooves for accommodating the second mounting ring 12 and the first mounting ring 11, and the second mounting ring 12 and the first mounting ring 11 can only be installed in the limit ring grooves. It can only slide in the limit ring groove, and will not fall off from the limit ring groove. Simultaneously, a limiting ring groove is also opened on the main positioning shaft, and simultaneously, the limiting ring grooves on the main positioning shaft are respectively close to two ends of the main positioning shaft. After the first installation ring 11 and the second installation ring 12 are installed on the main positioning shaft, they are respectively close to the inner end surface of the baffle plate 9 .

On the main positioning shaft adjacent to the two sides of the spacer ring 14, external threads are respectively opened. Through the external threads, a nut is installed respectively, and a support platform is integrally formed on the end surface of the nut facing the adjacent telescopic rod, and the nut can be controlled to rise or fall by rotating the nut. At this time, when the nut above the spacer ring 14 is gradually moving upward, the abutment will be against the first mounting ring 11, and the first mounting ring will be pressed against the baffle plate 9 to make it close, and then the first mounting ring will be fixed by pressing. Install ring 11. The fixing method of the second mounting ring 12 is also the same.

The positioning structure is shown in FIGS. 5 and 6 : it includes a pressure ring 16 , an insertion rod 17 and two sets of limit blocks 19 installed on both sides of the insertion rod 17 . A positioning groove for accommodating the positioning structure is opened on the positioning disc 4 . The pressure ring 16 is installed in the locating groove and slides with the inwall of the locating groove. The insertion rod 17 is installed in the inside of the pressure ring 16 and slides with the inwall of the locating groove.

On both sides of the outer wall of the pressure ring 16, two slide blocks are integrally formed respectively, and two slide grooves for sliding with the slide blocks are respectively opened on the inner walls of both sides of the positioning groove. Two second springs are installed between the bottom end surface of the pressure ring 16 and the inner bottom surface of the positioning groove.

A manual briquetting block 20 is integrally formed on the top of the insertion rod 17 . There are two channels on both sides of the insertion rod 17, and two guide platforms 18 are integrally formed on both sides of the top of the channel, and the limit block 19 is respectively installed between the two guide platforms 18 on both sides, and Both sides of the limiting block 19 are respectively integrally formed with a horizontal rail, and on the adjacent sides of the guide table 18 on both sides, a horizontal groove sliding with the horizontal rail is respectively opened, and the horizontal groove does not penetrate to the outside of the guide table 18 end face. And a third spring is respectively installed between the limiting block 19 and the inner wall of the through groove.

On the positioning disk 4 at the bottom end of the positioning groove, there is also a receiving groove for accommodating the end of the insertion rod 17 . A fourth spring is installed between the insertion rod 17 and the receiving groove. A spherical block is also integrally formed on both sides of the bottom end of the insertion rod 17, and a spherical groove for clamping the spherical block is respectively opened on the inner side of the pressure ring 16.

After the pressure ring 16 is pressed down by the PCB board 7, when the insertion rod 17 pops up, the spherical block will snap into the spherical groove, and the position of the insertion rod 17 is fixed in this way. Positioning holes are distributed around the PCB board 7 , and at this time the limiting block 19 will pop out from the through slot and be located above the PCB board 7 , so as to fix the PCB board 7 in this way.

And in this embodiment, the bottom end of the limiting block 19 protrudes outward for a section and then passes through the rounded corner and transitions to the side, and the section that protrudes outward is slightly larger than the diameter of the positioning hole on the PCB 7 . Therefore, the PCB board 7 can be held firmly. And at the top of the limit block 19, the transition is directly carried out with rounded corners, which is convenient to slide out from the positioning hole on the PCB board 7 when the insertion rod 17 pops up.

At the same time, when taking off the PCB board 7, first slide the limit block 19 inwards by hand, and then press down the insertion rod 17 through the manual pressing block 20. At this time, the spherical block will be separated from the spherical groove, and the PCB board will be pressed down respectively. Insert rod 17 on the positioning hole of 7, PCB board 7 can be taken out after operation is finished. At this time, the pressure ring 16 will be ejected by the third spring, and the insertion rod 17 will be pressed down to the receiving groove by the manual pressure block 20 at this time, and the limit block 19 will be ejected by the fourth spring and be against the inner wall of the pressure ring 16 , which is fixed. Simultaneously, the slide block and the chute on both sides of the bottom end of the pressure ring 16 will limit the pressure ring 16 so that it will not slip out.

When the present invention is in use, first fix the support plate 2, then adjust the first telescopic rod and the second telescopic rod respectively according to the shape and size of the PCB board 7 to be processed, when the first telescopic rod and the second telescopic rod After the parts are adjusted, the first mounting ring 11 and the second mounting ring 12 installed on the main positioning shaft are fixed in turn by turning the nuts respectively, which is the preliminary positioning;

After that, move the toggle table 10 inwardly, then rotate the positioning disc 4, so that the positioning structure is opposite to the positioning hole on the PCB board 7 to be processed, and the toggle table 10 can be released after alignment, so that the toggle table 10. The locking teeth on the inner side are placed between the teeth on the toothed plate to fix the toothed plate and the positioning disc 4, which is precise positioning;

After the precise positioning is completed, the PCB board 7 can be placed between the surrounding positioning discs 4, fixed by the positioning structure, and can be processed.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art , without departing from the scope of the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but as long as it does not depart from the technical solution of the present invention, the technical content of the present invention In essence, any brief modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A new type of fixture for PCB board processing, characterized in that it includes a workbench and supports that are detachably connected to the inner walls on both sides of the workbench, and the supports all include support plates that can be continuously connected to the inner walls of the workbench and respectively Adjustment components arranged at both ends of the support plate and used to install the PCB board; The adjustment components all include an arc table, auxiliary positioning shafts respectively fixed on both sides of the lower end surface of the arc table, the first telescopic rod and the second telescopic rod which are respectively rotatably connected to the auxiliary positioning shafts on both sides and can be fastened freely. Parts, the fan-shaped table fixed on the inner side of the arc-shaped table and the positioning disc that is coaxial with the fan-shaped table and is rotatably connected with the fan-shaped table. There is also a positioning structure for fixing the PCB board on the upper end of the disk; Both ends of the support plate are fixedly connected with main positioning shafts respectively, and the main positioning shafts are respectively rotatably connected with the first telescopic rod and the second telescopic rod of the adjustment assembly on the same side, and the main positioning shaft is also equipped with a fixed first telescopic rod. The fixing structure of the rod and the second telescopic rod. 2. A new type of fixing device for PCB board processing according to claim 1, characterized in that, the outer side of the support plate can be detachably connected with a connecting plate, and the connecting plate is detachably connected to the inner wall of the workbench on the side away from the supporting plate . 3. A novel fixing device for PCB board processing according to claim 1, wherein the first telescopic rod comprises a first sleeve and a first sliding rod slidingly connected with the first sleeve, the first There are triangular grooves in a staggered array on the upper end surface of a sliding rod along the sliding direction. The end of the first sleeve close to the first sliding rod is provided with a card slot that can accommodate a single triangular slot. The triangular bolt on the inner wall of the groove, the end of the first sleeve and the first slide bar away from each other are provided with a first installation ring, and the first installation ring is respectively connected in rotation with the main positioning shaft and the auxiliary positioning shaft. 4. A novel fixing device for PCB board processing according to claim 3, wherein the second telescopic rod comprises a second sleeve and a second sliding rod slidingly connected with the second sleeve, the second The upper end surface of the second sliding rod has triangular grooves in a staggered array along the sliding direction. The second sleeve near the end of the second sliding rod is provided with a card slot that can accommodate a single triangular groove. The triangular bolt on the inner wall of the groove, the second sleeve and the second sliding rod are provided with a second installation ring at the ends far away from each other, and the second installation ring is respectively rotatably connected with the main positioning shaft and the auxiliary positioning shaft. 5. A kind of novel PCB board processing fixture device according to claim 4 is characterized in that, on the main positioning shaft between the first mounting ring and the second mounting ring, a spacer ring is also affixed, and the main positioning shaft Both ends are also fixedly connected with baffle plates, and the fixing structures are respectively arranged on the main positioning shafts on both sides of the isolation ring. 6. A new type of fixing device for PCB board processing according to claim 5, wherein the fixing structure includes external threads on the main positioning shaft on both sides of the spacer ring and nuts respectively engaged with the external threads , the end faces of the nuts away from each other are provided with abutment platforms. 7. A novel fixing device for PCB board processing according to claim 1, wherein the positioning structure includes an inserting rod that can be inserted into the positioning hole of the PCB board and is respectively slidably connected between the inserting rods. The limit block that can not be completely slid out on the side, and the two sides of the insertion rod are provided with through grooves for accommodating the limit block and for the limit block to slide, and a third spring is fixedly connected between the through groove and the limit block. 8 . The novel fixing device for PCB board processing according to claim 7 , wherein, the bottom end surface, the top end surface and the side surfaces of the limiting block are provided with rounded corners for transition. 9 . 9. A new type of fixing device for PCB board processing according to claim 8, wherein the positioning structure also includes a positioning groove arranged on the positioning disk and is slidably connected with the positioning groove and cannot be fully extended for positioning. The pressure ring of the groove, the insertion rod is slidably connected to the inner side of the pressure ring, and there are spherical blocks on both sides of the bottom end of the insertion rod. The spherical groove is provided with a second spring at the bottom end of the pressure ring, and a fourth spring at the bottom end of the insertion rod. 10 . A novel fixing device for PCB board processing according to claim 9 , wherein a manual pressure block is provided at the top of the insertion rod. 11 .

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