PCBA board card assembling and pressing device

Abstract

The utility model discloses a PCBA board card assembling and pressing device which comprises a lower female die, the lower female die is provided with a groove matched with a shell, a PCBA module is pressed and fixed in the shell through a pressing cover, and the pressing cover and an opening in the upper end of the shell are pressed and clamped through an upper pressing mechanism; the upper pressing mechanism is provided with a shell pressing module, a gland pressing module, a pressing module and a positioning sensing module, the shell pressing module is elastically connected to the bottom side of the datum plate, the gland pressing module and the pressing module are fixedly connected to the bottom side of the datum plate, the length of the gland pressing module can be vertically and telescopically set, and the positioning sensing module is arranged on the bottom side of the datum plate. The positioning sensing module is elastically and telescopically arranged on the bottom side pressing face of the shell pressing module, and the datum plate is driven by a main power device to ascend and descend; the bottom side pressing faces of the shell pressing module, the gland pressing module and the pressing module are sequentially arranged from low to high. According to the utility model, the automatic press-fit assembly of the board card is realized, and the pressure loss of the PCBA is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of board assembly equipment, in particular to a PCBA board assembly pressing device. Background Art

[0002] Some small PCBA board components need to be press-fitted into the housing to protect the PCBA module. Since PCBA is a precision component with a compact structure, the use of common press-fitting devices may cause damage due to inaccurate positioning or excessive punching force, affecting the yield of the product after press-fitting. Manual press-fitting is extremely inefficient, and the installation accuracy needs to be manually determined, which is also easy to cause damage to the PCBA and affect its function. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a PCBA board assembly pressing device to achieve automatic and efficient pressing assembly of boards and avoid compression loss of PCBA.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a PCBA board assembly pressing device, including a lower concave die and an upper pressing mechanism, wherein the lower concave die is provided with a groove adapted to a shell, the shell opening is placed in the groove facing upward, a PCBA module is installed in the shell, the PCBA module is fixed in the shell by a pressure cover, and the pressure cover is pressed and clamped with the upper end opening of the shell by the upper pressing mechanism; the upper pressing mechanism is provided with an upper pressing component, and the upper pressing component is provided with a shell pressing module, a pressure cover pressing module, a pressing module and a positioning sensing module, the shell pressing module is elastically connected to the bottom side of the reference plate, the pressure cover pressing module and the pressing module are fixedly connected to the bottom side of the reference plate, the length of the pressure cover pressing module can be vertically telescopically arranged, the positioning sensing module is elastically telescopically arranged on the bottom side pressing surface of the shell pressing module, and the reference plate is driven to rise and fall by an active power device; the bottom side pressing surfaces of the shell pressing module, the pressure cover pressing module and the pressing module are arranged from low to high in sequence.

[0005] Furthermore, the upper end of the shell is higher than the upper port of the groove, and a pad is fixedly provided on the bottom pressing surface of the shell clamping module, and the inner side surface of the pad is in contact with the outer wall surface of the upper end of the shell; when the pad is in contact with the upper end surface of the lower die, the shell clamping module is pressed against the upper end surface of the shell.

[0006] Furthermore, the positioning sensing module is provided with a plurality of probes, and a plurality of the probes are arranged corresponding to a plurality of positioning holes on the shell; the probes are slidably arranged in the vertical guide sliding cavity, and the probes are connected to the upper end surface of the guide sliding cavity through an elastic member, and a displacement sensing module is arranged on the upper end surface of the guide sliding cavity, and a signal output end of the displacement sensing module is electrically connected to a control signal receiving end of the main power device, and the bottom end of the probe is arranged below the bottom end surface of the pad.

[0007] Furthermore, the pressure cover clamping module is provided with a pressure block and a guide column, the pressure block is connected to the bottom end surface of the guide column through an elastic member, the guide column is fixedly connected to the bottom side of the reference plate, and a through hole is provided in the middle of the shell clamping module for sliding cooperation with the pressure block and the guide column.

[0008] Furthermore, the pressing module is provided with a plurality of pressure rods, and the plurality of pressure rods are evenly arranged around the pressure cover clamping module, the pressure cover clamping module is arranged corresponding to the center of the pressure cover, the pressure rods are arranged corresponding to the edge of the pressure cover, and the shell clamping module is provided with guide holes cooperating with the pressure rods.

[0009] Furthermore, the pressure rod is fixedly connected to the bottom side of the reference plate through a limiting column.

[0010] Beneficial effect: The utility model is a PCBA board assembly pressing device. After one installation, the shell, PCBA module and pressure cover are installed on the lower concave mold according to the relative position relationship, and then the upper pressing mechanism is used to apply pressure once to complete the pressing operation, so as to automate the pressing and improve the pressing efficiency. The positioning sensing module of the upper pressing mechanism preferentially approaches the shell, and when the shell is misaligned, the sensing feedback control stops the pressing to avoid pressure damage; when ensuring that there is no misalignment, the shell clamping module, the pressure cover clamping module, and the pressing module are pressed in sequence to complete the continuous pressing action of fixing the shell first, then pressing to gradually engage the pressure cover with the shell port, and finally compacting the engaging position of the two, so as to avoid direct stamping causing pressure damage to the board. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0012] Attached Figure 2 The figure is a schematic structural diagram of a positioning sensing module according to an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] As attached Figure 1-2The PCBA board assembly pressing device comprises a lower concave die 1 and an upper pressing mechanism 2, wherein the lower concave die 1 is provided with a groove 11 adapted to a shell 3, the shell 3 is placed in the groove 11 with its opening facing upward, a PCBA module 30 is installed in the shell 3, the PCBA module 30 is pressed and fixed in the shell 3 by a pressure cover 4, and the pressure cover 4 and the upper end opening of the shell 3 are pressed and engaged by the upper pressing mechanism 2; in this scheme, the upper pressing mechanism can be fixedly installed in a protective cover shell, the lower concave die is driven to reciprocate on the bottom side of the upper pressing mechanism by an oil cylinder, the lower concave die can be moved and dislocated with the upper pressing mechanism, so that the shell, the PCBA module, and the pressure cover are placed in the groove in sequence, and then the lower concave die is moved to the bottom of the upper pressing mechanism for pressing.

[0015] The upper pressing mechanism 2 is provided with an upper pressing component 5, and the upper pressing component 5 is provided with a shell pressing module 6, a cover pressing module 7, a pressing module 8 and a positioning sensing module 9. The shell pressing module 6 is elastically connected to the bottom side of the reference plate 51, the cover pressing module 7 and the pressing module 8 are fixedly connected to the bottom side of the reference plate 51, the cover pressing module 7 can be vertically telescopically set, the positioning sensing module 9 is elastically telescopically set on the bottom side pressing surface of the shell pressing module 6, and the reference plate 51 is driven to rise and fall by the main power device 21; the bottom side pressing surfaces of the shell pressing module 6, the cover pressing module 7 and the pressing module 8 are arranged from low to high in sequence.

[0016] Based on the above structure, during press-fitting, the main power device drives the reference plate to move downward, and the positioning sensing module first senses whether the position of the shell is offset. If there is an offset, the pressing action is stopped immediately to avoid misalignment and pressure loss; if there is no offset, the pressing action continues, and the shell is first pressed into the groove by the shell clamping module to avoid the shell from moving during the pressing process. Then the pressure cover clamping module 7 applies pressure to the upper end face of the pressure cover, and the pressure cover and the shell are pressed together by gradually applying pressure. Finally, the pressing module 8 applies pressure to the edge of the pressure cover so that the engaging part is compacted to complete the complete press-fitting action. Avoid direct punching and pressure loss caused by excessive force.

[0017] The upper end of the housing 3 is higher than the upper end of the groove 11, and a cushion block 61 is fixedly provided on the bottom pressing surface of the housing pressing module 6, and the inner side surface of the cushion block 61 is in contact with the upper end outer wall of the housing 3; when the cushion block 61 is in contact with the upper end surface of the lower die 1, the housing pressing module 6 is pressed against the upper end surface of the housing 3. The cushion block limits the downward pressing stroke of the housing pressing module, and while pressing the housing, it avoids pressure damage to the housing caused by overpressure, and the cushion block circumferentially limits the upper end of the housing to avoid deformation of the housing end due to pressure.

[0018] The positioning sensing module 9 is provided with a plurality of probes 91, and the plurality of probes 91 are provided corresponding to the plurality of positioning holes on the shell 3; the probes 91 are slidably provided in the vertical guide slide cavity, and the probes 91 are connected to the upper end surface of the guide slide cavity through an elastic member, and the upper end surface of the guide slide cavity is provided with a displacement sensing module 92, and the signal output end of the displacement sensing module 92 is electrically connected to the control signal receiving end of the main power device 21, and the bottom end of the probe 91 is provided below the bottom end surface of the cushion block 61. By inserting the probes corresponding to the positioning holes, if there is no offset, the probes will not be displaced, and the displacement sensing module will not generate a feedback signal; if there is an offset, the probes are lifted up and move upward, and after the displacement sensing module senses the displacement, a control signal is fed back to the main power device to stop the pressing action, thereby preventing the cushion block from exerting pressure on the shell and causing pressure loss on the shell.

[0019] The gland clamping module 7 is provided with a clamping block 71 and a guide column 72. The clamping block 71 is connected to the bottom end surface of the guide column 72 through an elastic member. The guide column 72 is fixedly connected to the bottom side of the reference plate 51. The middle part of the shell clamping module 6 is provided with a through hole that is slidably matched with the clamping block 71 and the guide column 72. After the shell is clamped, the elastic connecting member between the shell clamping module and the reference plate is compressed to make the clamping block contact with the gland. Then, the elastic member between the clamping block and the guide column is compressed, and the elastic potential energy accumulated slowly acts on the gland, so that the gland is pressed to engage with the shell port. Pressing replaces punching to avoid pressure loss caused by excessive punching force.

[0020] The pressing module 8 is provided with a plurality of pressing rods 81, and the plurality of pressing rods 81 are evenly arranged around the gland pressing module 7, the gland pressing module 7 is arranged corresponding to the center of the gland 4, the pressing rods 81 are arranged corresponding to the edge of the gland 4, and the shell pressing module 6 is provided with guide holes matched with the pressing rods 81. The clamping parts are pressed by the evenly arranged pressing rods to ensure the pressing quality.

[0021] The pressing rod 81 is fixedly connected to the bottom side of the reference plate 51 through a limiting column 82. The limiting column can limit the downward pressing stroke of the pressing rod to avoid damage to the gland due to overpressure.

[0022] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A PCBA board assembly pressing device, characterized in that: The invention comprises a lower concave die (1) and an upper pressing mechanism (2), wherein the lower concave die (1) is provided with a groove (11) adapted to a shell (3), the shell (3) is placed in the groove (11) with its opening facing upward, a PCBA module (30) is installed in the shell (3), the PCBA module (30) is pressed and fixed in the shell (3) by a pressing cover (4), the pressing cover (4) and the upper end opening of the shell (3) are pressed and engaged by the upper pressing mechanism (2); the upper pressing mechanism (2) is provided with an upper pressing assembly (5), and the upper pressing assembly (5) is provided with a shell pressing module (6) and a pressing cover pressing module (7). , a pressing module (8) and a positioning sensing module (9), the shell pressing module (6) is elastically connected to the bottom side of the reference plate (51), the cover pressing module (7) and the pressing module (8) are fixedly connected to the bottom side of the reference plate (51), the cover pressing module (7) can be vertically telescopically arranged in length, the positioning sensing module (9) is elastically telescopically arranged on the bottom side pressing surface of the shell pressing module (6), and the reference plate (51) is driven to rise and fall by the main power device (21); the bottom side pressing surfaces of the shell pressing module (6), the cover pressing module (7) and the pressing module (8) are arranged in sequence from low to high.

2. A PCBA board assembly pressing device according to claim 1, characterized in that: The upper end of the shell (3) is higher than the upper end of the groove (11), and a cushion block (61) is fixedly provided on the bottom pressing surface of the shell clamping module (6), and the inner side surface of the cushion block (61) is in contact with the outer wall surface of the upper end of the shell (3); when the cushion block (61) is in contact with the upper end surface of the lower die (1), the shell clamping module (6) is pressed against the upper end surface of the shell (3).

3. A PCBA board assembly pressing device according to claim 2, characterized in that: The positioning sensing module (9) is provided with a plurality of probes (91), and the plurality of probes (91) are provided corresponding to the plurality of positioning holes on the shell (3); the probes (91) are slidably provided in a vertical guide slide cavity, the probes (91) are connected to the upper end surface of the guide slide cavity through an elastic member, the upper end surface of the guide slide cavity is provided with a displacement sensing module (92), the signal output end of the displacement sensing module (92) is electrically connected to the control signal receiving end of the main power device (21), and the bottom end of the probe (91) is provided below the bottom end surface of the cushion block (61).

4. A PCBA board assembly pressing device according to claim 3, characterized in that: The pressure cover clamping module (7) is provided with a pressure block (71) and a guide column (72); the pressure block (71) is connected to the bottom end surface of the guide column (72) via an elastic member; the guide column (72) is fixedly connected to the bottom side of the reference plate (51); and a through hole is provided in the middle of the shell clamping module (6) for sliding cooperation with the pressure block (71) and the guide column (72).

5. A PCBA board assembly pressing device according to claim 4, characterized in that: The pressing module (8) is provided with a plurality of pressing rods (81), and the plurality of pressing rods (81) are evenly arranged around the pressing cover clamping module (7), the pressing cover clamping module (7) is arranged corresponding to the center of the pressing cover (4), the pressing rods (81) are arranged corresponding to the edge of the pressing cover (4), and the shell pressing module (6) is provided with guide holes that cooperate with the pressing rods (81).

6. A PCBA board assembly pressing device according to claim 5, characterized in that: The pressure rod (81) is fixedly connected to the bottom side of the reference plate (51) via a limiting column (82).

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