CN213258070U - Automatic screw locking mechanism for switching power supply PCB - Google Patents

Abstract

The utility model discloses an automatic screw locking mechanism for a switch power supply PCB, which comprises a machine table and a positioning system arranged on the machine table, wherein the positioning system comprises a sliding plate arranged on the machine table in a sliding manner, a clamp is arranged on the sliding plate, and the clamp is provided with a first placing groove for placing a switch power supply shell; the clamp comprises a movable clamping block and a fixed clamping block, a spring is arranged between the movable clamping block and the fixed clamping block, and the movable clamping block can horizontally move in the direction far away from or close to the fixed clamping block through the spring; the movable clamping block is provided with a through hole, a screw rod is movably inserted in the through hole, the fixed clamping block is provided with a thread groove, after the movable clamping block and the fixed clamping block are matched and connected through the screw rod and the thread groove, a first placing groove is formed between the movable clamping block and the fixed clamping block, and the movable clamping block and the fixed clamping block clamp a switch power supply shell located in the first placing groove simultaneously. The automatic screw locking mechanism of the automatic screw locking mechanism for the switch power supply PCB can quickly and conveniently position the switch power supply shell.

Description

Automatic screw locking mechanism for switching power supply PCB

Technical Field

The utility model relates to an electronic power source field, concretely relates to automatic screw locking mechanism of switching power supply PCB board.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

In the process of processing the switch power supply PCB, the PCB and the switch power supply shell need to be subjected to screw locking operation, and the screw locking operation is generally completed by an automatic screw locking machine in the prior art. In the prior art, as an automatic screw locking machine disclosed in chinese patent CN209736999U, the automatic screw locking machine comprises an automatic screw feeding machine (10), a control system (11), a positioning system (12) and a locking system (13), wherein the locking system (13) comprises a vertically placed fixed support (1), an electric screwdriver (2), a cylinder (3) and a connecting plate (4), the connecting plate (4) is slidably arranged on the fixed support (1), the cylinder (3) is located above the connecting plate (4) and the bottom of a first push rod (31) of the cylinder (3) is fixedly connected with the connecting plate (4), the connecting plate (4) is fixedly connected with the vertically placed electric screwdriver (2), a chuck (5) located below the electric screwdriver (2) is fixedly connected on the fixed support (1), the chuck (5) comprises a fixed clamping block (51), a vertical groove (511) is respectively arranged at each of the left side and the right side of the fixed clamping block (51), the utility model discloses a lock screw thread workstation, including vertical groove (511) and splint (52), splint (52) are set up a vertical splint (52) of placing respectively in vertical groove (511) punishment, splint (52) towards the one side of vertical groove (511) with the one side of vertical groove (511) towards splint (52) forms the clearance, the middle part of splint (52) with the front and back both sides of vertical groove (511) are articulated the outside of splint (52) rigid coupling handle (6) respectively, handle (6) are located the upper end of splint (52), and two handle (6) intercross are articulated in the cross, the power arm of handle (6) is greater than the resistance arm work efficiency of handle (6) is low, and product quality is uneven, appears static easily and damages the electronic component on the PCB board, so now provide a lock screw thread workstation of PCB board automated production assembly line.

In the prior art, the operation is convenient, and the effects of time and labor saving are achieved; however, the positioning system in the technology cannot position the switch power supply housing quickly and conveniently, the screw locking operation efficiency of the locking system may be affected, and the positioning system needs to ensure the stability after clamping and positioning the switch power supply housing while positioning the switch power supply housing, so that the quality of the screw locking operation can be effectively ensured.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a switching power supply PCB board automatic screw locking mechanism has solved automatic screw locking machine effectively at least and can not fix a position switch power supply shell fast conveniently to and effectively guarantee the problem of the stability after the location.

(II) technical scheme

In order to solve the technical problem, the utility model provides a following technical scheme: a switching power supply PCB automatic screw locking mechanism comprises a machine table and a positioning system arranged on the machine table, wherein the positioning system comprises a sliding plate arranged on the machine table in a sliding mode, a clamp is arranged on the sliding plate, and the clamp is provided with a first placing groove used for placing a switching power supply shell; the clamp comprises a movable clamping block sliding on the sliding plate and a fixed clamping block fixedly connected on the sliding plate, a spring is arranged between the movable clamping block and the fixed clamping block, and the movable clamping block can horizontally move in the direction far away from or close to the fixed clamping block through the spring; the movable clamping block is provided with a through hole, a screw rod is movably inserted in the through hole, the fixed clamping block is provided with a thread groove, the movable clamping block and the fixed clamping block are in matched threaded connection through the screw rod and the thread groove, the first placing groove is formed between the movable clamping block and the fixed clamping block, and the movable clamping block and the fixed clamping block clamp a switching power supply shell located in the first placing groove.

With the arrangement, when the shell of the switching power supply is placed, the screw rod is screwed, the connection between the screw rod and the threaded groove is removed, then the movable clamping block is pulled, the movable clamping block is far away from the fixed clamping block, the spring is stressed, and at the moment, the space in the first placing groove is enlarged, so that the shell of the switching power supply can be placed quickly; then, release the activity clamp splice, under the effort of spring, the activity clamp splice is close to fixed clamp splice fast, and the laminating is on switching power supply shell, thereby carry out pre-fixing and location to switching power supply shell fast through activity clamp splice and fixed clamp splice, the rethread screw rod carries out fastening connection with fixed clamp splice with the cooperation spiro union of thread groove, and then has effectively guaranteed the stability of switching power supply shell after the location in anchor clamps, guarantees the quality of locking the screw operation.

The fixture is further provided with a square fixture, the first placing groove is a square placing groove, and the movable clamping block is one end corner of the square fixture.

So set up, can be to switch power supply housing's horizontal and vertical pre-fixing through the end angle to improved the effect of pre-fixing and location, effectively guaranteed activity clamp splice and fixed clamp splice and carrying out the stability of pre-fixity to switch power supply housing, thereby improved the efficiency of screw rod and thread groove cooperation spiro union, improved the efficiency of locking the screw operation.

The movable clamping block is characterized in that a sliding shaft is fixedly connected to the lower end face of the movable clamping block, a sliding rail is arranged on the sliding plate, and the sliding shaft is connected to the sliding rail in a sliding mode along the acting force direction of the spring.

So set up, the cooperation of slide rail and slide-axle can improve the stability of activity clamp splice in the activity in-process, further improves the efficiency of locking the screw operation.

Further, a stop block is arranged on the part, located between the through hole and the thread groove, of the screw rod, and the outer diameter of the stop block is larger than that of the through hole.

So set up, can come the pulling activity clamp splice through the screw rod, make the activity clamp splice toward the direction activity of keeping away from fixed clamp splice, it is more convenient to operate, improves the efficiency of carrying out the location operation to switch power supply housing.

And a hand-pulling piece is arranged at one end of the screw rod, which is far away from the stop block.

So set up, be convenient for to the application of force of activity clamp splice, improve the simple operation nature to the activity clamp splice.

Further setting, the both sides wall terminal surface symmetry of fixed clamp splice is equipped with the recess, two the recess all with first standing groove intercommunication.

So set up, through both sides recess for it is more convenient to take and place switching power supply shell, further improves the operating efficiency of lock screw.

The fixed clamping block is not provided with a yielding groove which is communicated with the first placing groove and is arranged on one side end face of the groove.

So set up, because often be equipped with the through-hole that supplies external power line to pass on the switching power supply shell, and when carrying out the lock screw operation to PCB board and switching power supply shell, the power cord has generally all been adorned to the PCB board, consequently the groove of stepping down can be convenient for place the power cord to effectively avoid the power cord to the interference of lock screw operation.

The bottom end face of the first placing groove is provided with a second placing groove, the structure of the second placing groove is the same as that of the first placing groove, and the cross sectional area of the second placing groove is smaller than that of the first placing groove.

So set up, the second standing groove can be used for placing littleer switching power supply shell to the adaptability of anchor clamps has been improved.

(III) advantageous effects

Compared with the prior art, the utility model provides an automatic screw locking mechanism of switching power supply PCB board possesses following beneficial effect:

the positioning system of the automatic screw locking mechanism for the switch power supply PCB is provided with a clamp, a first placing groove is formed in the clamp, when a switch power supply shell is placed, a screw rod is screwed, the connection between the screw rod and a threaded groove is removed, then a movable clamping block is pulled, the movable clamping block is far away from a fixed clamping block, a spring is stressed, and at the moment, the space in the first placing groove is enlarged, so that the switch power supply shell can be placed quickly; then, release the activity clamp splice, under the effort of spring, the activity clamp splice is close to fixed clamp splice fast, and the laminating is on switching power supply shell, thereby carry out pre-fixing and location to switching power supply shell fast through activity clamp splice and fixed clamp splice, the rethread screw rod carries out fastening connection with fixed clamp splice with the cooperation spiro union of thread groove, and then has effectively guaranteed the stability of switching power supply shell after the location in anchor clamps, guarantees the quality of locking the screw operation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a sectional view of a part of the side structure of the clamp;

fig. 4 is an enlarged schematic view of a portion B in fig. 3.

In the drawings: 1. an automatic screw locking machine; 101. a machine platform; 102. a positioning system; 1021. a slide plate; 10211. a slide rail; 103. an automatic nail feeder; 104. a control system; 105. a lock payment system; 2. a clamp; 201. a first placing groove; 202. a movable clamping block; 2021. perforating; 203. fixing the clamping block; 2031. a thread groove; 2032. a groove; 2033. a yielding groove; 204. a second placing groove; 3. a spring; 4. a screw; 401. a stopper; 402. a hand pull; 5. a slide shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic overall structure diagram of the present invention, fig. 2 is an enlarged structural diagram of a position a in fig. 1, fig. 3 is a schematic partial side sectional view of the clamp, and fig. 4 is an enlarged structural diagram of a position B in fig. 3.

The utility model provides a switching power supply PCB board automatic screw locking mechanism, including automatic screw locking machine 1, automatic screw locking machine 1 includes board 101 and the positioning system 102, automatic nail feeding machine 103, control system 104 and the lock system 105 of installing on board 101, positioning system 102 includes two slides 1021 that parallel sliding connection is on board 101, all the spiro union has the anchor clamps 2 of plastics material on each slide 1021, the up end integrated into one piece of anchor clamps 2 has the first standing groove 201 that is used for placing the switching power supply shell; the clamp 2 comprises a movable clamping block 202 sliding on the sliding plate 1021 and a fixed clamping block 203 screwed on the sliding plate 1021, a spring 3 is arranged between the movable clamping block 202 and the fixed clamping block 203, and the movable clamping block 202 can horizontally move in the direction far away from or close to the fixed clamping block 203 through the spring 3; the side of the movable clamping block 202 is penetrated with a through hole 2021, a screw rod 4 is movably inserted in the through hole 2021, a thread groove 2031 is formed on the fixed clamping block 203, after the movable clamping block 202 and the fixed clamping block 203 are matched and screwed with each other through the screw rod 4 and the thread groove 2031, a first placing groove 201 is formed between the movable clamping block 202 and the fixed clamping block 203, and the movable clamping block 202 and the fixed clamping block clamp the switch power supply shell in the first placing groove 201. Thus, when the switch power supply shell is placed, the screw rod 4 is screwed, the connection between the screw rod 4 and the thread groove 2031 is released, then the movable clamping block 202 is pulled, the movable clamping block 202 is far away from the fixed clamping block 203, the spring 3 is stressed, and at the moment, the space in the first placing groove 201 is enlarged, so that the switch power supply shell can be placed quickly; then, release activity clamp splice 202, under the effort of spring 3, activity clamp splice 202 is close to fixed clamp splice 203 fast, and the laminating is in switching power supply shell one side, thereby advance fixedly and fix a position switching power supply shell fast through activity clamp splice 202 and fixed clamp splice 203, rethread screw rod 4 and thread groove 2031's cooperation spiro union, carry out fastening connection with activity clamp splice 202 and fixed clamp splice 203, and then effectively guaranteed the stability of switching power supply shell after fixing a position in anchor clamps 2, guarantee the quality of lock screw operation.

In order to match with the switching power supply shell so as to better position and clamp the switching power supply shell, the clamp 2 is made into a square clamp 2, the same first placing groove 201 is a square placing groove, and the movable clamping block 202 is one end corner of the square clamp 2. When activity clamp splice 202 and fixed clamp splice 203 advance fixed and fix a position the switch power supply, because activity clamp splice 202 is square anchor clamps 2 one end angle structure, consequently activity clamp splice 202 can be simultaneously through transversely and vertically advance fixed and fix a position the switch power supply shell, thereby the effect of fixing in advance and fixing a position has been improved, effectively guarantee activity clamp splice 202 and fixed clamp splice 203 and carry out the stability of prefixed nature to the switch power supply shell, thereby the efficiency of screw 4 with thread groove 2031 cooperation spiro union has been improved, the efficiency of locking the screw operation is improved.

The lower end face of the movable clamping block 202 is vertically and integrally formed with a slide shaft 5, the slide plate 1021 is provided with a slide rail 10211, and the slide shaft 5 is slidably connected to the slide rail 10211 along the acting force direction of the spring 3. So, under the cooperation of slide rail 10211 and slide-axle 5 for activity clamp splice 202 is more stable at the activity in-process, is more convenient for be connected with the alignment of fixed clamp splice 203, effectively guarantees fixing in advance and the location to switching power supply shell, and need not to adjust the position of activity clamp splice 202 through manual again, can effectively guarantee the alignment of screw rod 4 and thread groove 2031 like this, thereby further improve the efficiency of locking the screw operation.

The screw 4 is integrally formed with a stopper 401 at a portion of the outer circumference between the through hole 2021 and the thread groove 2031, the outer diameter of the stopper 401 is larger than the outer diameter of the through hole 2021, the spring 3 is sleeved on the screw 4, two ends of the spring 3 are respectively connected to one side end of the movable clamping block 202 and one side end of the fixed clamping block 203, the through hole 2021 is formed through the movable clamping block 202 at a position corresponding to the spring 3, and the thread groove 2031 is formed on the fixed clamping block 203 at a position corresponding to the through hole 2021. So, after screw rod 4 and thread groove 2031 are disconnected, through pulling screw rod 4 for activity clamp splice 202 is followed screw rod 4 and is moved toward the direction of keeping away from fixed clamp splice 203 together under the effect of dog 401, makes the operation more convenient, improves the efficiency of carrying out the location operation to switch power supply housing. In order to further improve the convenience of operation on the screw rod 4, a hand-pulling piece 402 is welded to one end of the screw rod 4, which is far away from the stop block 401, namely, one end of the screw rod 4, which is far away from the thread and is exposed out of the movable clamping block 202, so that the force applied to the movable clamping block 202 is facilitated, and the labor is saved when the screw rod 4 is pulled.

Two lateral wall end surfaces of the fixing clamping block 203 are symmetrical and are integrally formed with grooves 2032, and the two grooves 2032 are communicated with the first placing groove 201. Through both sides recess 2032 for it is more convenient to take and place switching power supply shell, further improves the operating efficiency of lock screw. The end face of one side of the fixed clamping block 203, which is not provided with the groove 2032, is integrally formed with a yielding groove 2033, and the yielding groove 2033 is communicated with the first placing groove 201; because the switch power supply shell is often provided with a through hole for an external power line to pass through, when the PCB and the switch power supply shell are subjected to screw locking operation, components and power lines are generally installed on the PCB, so that the receding groove 2033 can facilitate the placement of the power line, and the interference of the power line on the screw locking operation is effectively avoided.

The bottom end face of the first placement groove 201 is integrally formed with a second placement groove 204, the structure of the second placement groove 204 is the same as that of the first placement groove 201, and the cross-sectional area of the second placement groove 204 is smaller than that of the first placement groove 201. The second placing groove 204 can be used for placing smaller switch power supply shells, so that the switch power supply shells with different sizes do not need to be positioned by replacing the clamp 2, the adaptability of the clamp 2 is improved, and the working efficiency is improved.

When the screw locking device is used, when the screw locking operation is required to be performed on the switch power supply shell provided with the PCB, the screw rod 4 is firstly screwed, the connection between the screw rod 4 and the thread groove 2031 is released, then the screw rod 4 is pulled through the hand-pulling piece 402, the movable clamping block 202 is far away from the fixed clamping block 203, at the moment, the spring 3 is stretched, meanwhile, the space in the first placing groove 201 is enlarged, then the switch power supply shell is directly placed in the first placing groove 201, the bottom end face of the switch power supply shell is abutted against the groove wall end face of the second placing groove 204, the three end faces are respectively embedded with the three end corners in the fixed clamping block 203, then the screw rod 4 is released, the movable clamping block 202 slides in the slide rail 10211 under the acting force of the spring 3 and is rapidly close to the direction of the fixed clamping block 203, and is finally attached to one end corner of the switch power supply shell, and simultaneously, one side ends of the movable clamping block 202 and the fixed clamping block 203 which, next, the screw 4 is screwed to screw the screw 4 into the thread groove 2031, and the movable clamping block 202 and the fixed clamping block 203 are fastened and connected by screwing the screw 4 into the thread groove 2031, so that the switching power supply housing is stably positioned in the jig 2, and at this time, the screw locking operation is performed by the locking system 105.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The automatic screw locking mechanism for the switch power supply PCB is characterized by comprising a machine table (101) and a positioning system (102) arranged on the machine table (101), wherein the positioning system (102) comprises a sliding plate (1021) arranged on the machine table (101) in a sliding manner, a clamp (2) is arranged on the sliding plate (1021), and the clamp (2) is provided with a first placing groove (201) for placing a switch power supply shell; the clamp (2) comprises a movable clamping block (202) sliding on the sliding plate (1021) and a fixed clamping block (203) fixedly connected on the sliding plate (1021), a spring (3) is arranged between the movable clamping block (202) and the fixed clamping block (203), and the movable clamping block (202) can horizontally move in the direction far away from or close to the fixed clamping block (203) through the spring (3); the movable clamping block (202) is provided with a through hole (2021), a screw rod (4) is movably inserted in the through hole (2021), a thread groove (2031) is formed in the fixed clamping block (203), after the movable clamping block (202) and the fixed clamping block (203) are matched and screwed with each other through the screw rod (4) and the thread groove (2031), the first placing groove (201) is formed between the movable clamping block (202) and the fixed clamping block (203), and the movable clamping block and the fixed clamping block clamp a switch power supply shell in the first placing groove (201) at the same time.

2. The automatic screw locking mechanism for the switch power supply PCB as recited in claim 1, wherein the clamp (2) is a square clamp (2), the first placing slot (201) is a square placing slot, and the movable clamping block (202) is one end corner of the square clamp (2).

3. The automatic screw locking mechanism of the switch power supply PCB as claimed in claim 2, wherein a sliding shaft (5) is fixedly connected to a lower end face of the movable clamping block (202), a sliding rail (10211) is arranged on the sliding plate (1021), and the sliding shaft (5) is slidably connected to the sliding rail (10211) along the acting force direction of the spring (3).

4. The automatic screw locking mechanism of the switch power supply PCB board according to claim 3, wherein a part of the screw rod (4) between the through hole (2021) and the thread groove (2031) is provided with a stopper (401), and the outer diameter of the stopper (401) is larger than the outer diameter of the through hole (2021).

5. The automatic screw locking mechanism for the switch power supply PCB as claimed in claim 4, wherein a hand-pulling piece (402) is arranged at one end of the screw rod (4) far away from the stop block (401).

6. The automatic screw locking mechanism for the switch power supply PCB as claimed in claim 2, wherein two side wall end faces of the fixing clamping block (203) are symmetrically provided with grooves (2032), and both grooves (2032) are communicated with the first placing groove (201).

7. The automatic screw locking mechanism for the switch power supply PCB according to claim 6, wherein the fixing clamp block (203) is provided with a relief groove (2033) at one end surface of the side not provided with the groove (2032), and the relief groove (2033) is communicated with the first placing groove (201).

8. The automatic screw locking mechanism for the switching power supply PCB as recited in claim 1, wherein a second placing groove (204) is provided on a bottom end face of the first placing groove (201), the structure of the second placing groove (204) is the same as that of the first placing groove (201), and the cross-sectional area of the second placing groove (204) is smaller than that of the first placing groove (201).

Images