Adjustable assembly workbench for SMT (Surface Mount Technology) processing

Abstract

The utility model discloses an adjustable assembling workbench for SMT processing, which comprises an assembling table, the upper surface of the assembling table is fixedly connected with an object placing table, the inner top wall of the assembling table is fixedly communicated with guide pipes which are distributed in an annular array, the outer surface of each guide pipe is provided with a curved groove, the inner top wall of the assembling table is fixedly provided with a servo electric cylinder, and the servo electric cylinder is fixedly connected with the object placing table. A cross-shaped mounting frame is fixedly connected to one end of a piston rod of the servo electric cylinder, driving rods distributed in an annular array mode are mounted on the upper surface of the cross-shaped mounting frame through bearings, the outer surfaces of the driving rods are movably connected with the inner wall of the guide pipe in a sleeving mode, and one ends of the multiple driving rods penetrate through and extend to the upper surface of the assembly table. The PCB clamping and fixing device has the advantages that PCBs of different models and sizes can be clamped and fixed, the upper portions of the peripheries of the PCBs can be synchronously clamped and fixed, operation is convenient and fast, the manufacturing cost is low, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of SMT processing, in particular to an adjustable assembly workbench for SMT processing. Background Art

[0002] SMT is surface assembly technology, which is the most popular technology and process in the electronic assembly industry. The surface assembly technology of electronic circuits is called surface mounting or surface installation technology. SMT patch refers to the abbreviation of a series of process flows based on PCB. PCB is printed circuit board, which is the most popular technology and process in the electronic assembly industry. In the process of processing PCB, it is often necessary to use an assembly workbench to assemble the PCB. Generally, the staff needs to manually pick up the PCB, place it in the appropriate position, and then use a fixing fixture to manually fix the position of the PCB, which is more troublesome and makes the processing efficiency low.

[0003] For example, a Chinese patent document discloses an adjustable assembly workbench for SMT processing (publication number: CN215548438U). Although this patent places the PCB board to be processed in the PCB board fixing assembly through a robot or other device, and then extends the first telescopic cylinder to push the inner side of the support plate against the edge of the PCB board, and then extends the second electric telescopic rod to clamp the clamping plate at the top edge of the PCB board to fix the PCB board, in this case, the PCB board will not be offset during processing.

[0004] However, since the PCB board is usually rectangular, when clamping and positioning the top of the PCB board, it is necessary to use multiple sets of first telescopic rods to drive the support plates to move to the top of the four sides of the PCB board respectively. Due to the difference in length and width, multiple controls are required, and then multiple sets of second telescopic rods are used to clamp the upper edge of the PCB board. The whole process is relatively cumbersome, and more electronic devices need to be used in the process of fixing the PCB board, which leads to high cost and low practicality. Utility Model Content

[0005] In view of the defects in the prior art, the utility model provides an adjustable assembly workbench for SMT processing, which can clamp and fix PCB boards of different models and sizes, and simultaneously clamp and fix the upper parts of the PCB boards. It is not only convenient to operate, but also has low cost and high practicality.

[0006] The utility model provides an adjustable assembly workbench for SMT processing, comprising an assembly table, the upper surface of the assembly table is fixedly connected with a storage table, the inner top wall of the assembly table is fixedly connected with guide tubes distributed in a ring array, the outer surface of the guide tube is provided with a curved groove, a servo electric cylinder is fixedly installed on the inner top wall of the assembly table, one end of the servo electric cylinder piston rod is fixedly connected with a cross mounting frame, the upper surface of the cross mounting frame is installed with driving rods distributed in a ring array through bearings, the outer surface of the driving rod is movably sleeved with the inner wall of the guide tube, and one end of a plurality of the driving rods penetrates and extends to the upper surface of the assembly table;

[0007] An adjusting device is arranged at one end of the driving rod, and the adjusting device comprises a positioning sleeve, and a lower surface of the positioning sleeve is fixedly connected to one end of the driving rod.

[0008] Preferably, a guide slide bar is fixedly connected to the outer surface of the driving rod, the outer surface of the guide slide bar is slidably connected to the inner wall of the curved groove, and an adjustment block is movably sleeved on the inner wall of the positioning sleeve.

[0009] Preferably, the upper surface of the adjusting block is provided with positioning holes distributed in a linear array, the lower surface of the adjusting block is fixedly connected to a rubber pressure block, and the upper surface of the positioning sleeve is fixedly connected to guide rods distributed symmetrically.

[0010] Preferably, the outer surfaces of the two guide rods are movably sleeved with movable blocks, the upper surfaces of the movable blocks are fixedly connected with pull rings, the lower surfaces of the movable blocks are fixedly connected with positioning rods, and one end of the positioning rods penetrates and extends into the interior of the positioning sleeves.

[0011] Preferably, one end of the positioning rod is movably plugged into the inner wall of one of the positioning holes, a return spring is movably sleeved on the outer surface of the guide rod, and one end of the two return springs is fixedly connected to the lower surface of the movable block.

[0012] Preferably, the other ends of the two return springs are fixedly connected to the upper surface of the positioning sleeve, and the lower surface of the assembly table is fixedly connected with support legs distributed in a rectangular array, and the outer surfaces of the support legs are movably sleeved with guide rings.

[0013] Preferably, a connecting block is fixedly connected to the outer surface of the guide ring, one end of each of the connecting blocks is fixedly connected to a movable base, a hydraulic cylinder is fixedly installed on the lower surface of the assembly table, and one end of the hydraulic cylinder piston rod is fixedly connected to the upper surface of the movable base.

[0014] The beneficial effects of the utility model are embodied in:

[0015] By setting the adjusting device, it is possible to clamp and fix PCB boards of different models and sizes, and simultaneously clamp and fix the upper parts of the PCB boards on all sides, which is not only convenient to operate, but also low in cost and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 This is a front view of an adjustable assembly workbench for SMT processing provided by the utility model;

[0018] Figure 2 for Figure 1 A three-dimensional diagram of the assembly table structure of an adjustable assembly workbench for SMT processing shown;

[0019] Figure 3 for Figure 1 A three-dimensional diagram of the guide tube structure of an adjustable assembly workbench for SMT processing;

[0020] Figure 4 for Figure 1 A three-dimensional diagram of the positioning sleeve structure of an adjustable assembly workbench for SMT processing is shown.

[0021] In the accompanying drawings, 1. assembly table, 2. storage table, 3. guide tube, 4. curved groove, 5. servo electric cylinder, 6. cross mounting frame, 7. driving rod, 8. positioning sleeve, 81. guide slide bar, 82. adjustment block, 83. positioning hole, 84. rubber pressure block, 85. guide rod, 86. movable block, 87. pull ring, 88. positioning rod, 89. reset spring, 810. support leg, 811. guide ring, 812. connecting block, 813. movable base, 814. hydraulic cylinder. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0024] Reference Figure 1-4, an adjustable assembly workbench for SMT processing, comprising an assembly table 1, a storage table 2 is fixedly connected to the upper surface of the assembly table 1, a guide tube 3 distributed in a ring array is fixedly connected to the inner top wall of the assembly table 1, a curved groove 4 is opened on the outer surface of the guide tube 3, a servo electric cylinder 5 is fixedly installed on the inner top wall of the assembly table 1, one end of the piston rod of the servo electric cylinder 5 is fixedly connected to a cross mounting frame 6, and a driving rod 7 distributed in a ring array is installed on the upper surface of the cross mounting frame 6 through a bearing. The servo electric cylinder 5 plays a role in synchronously driving multiple driving rods 7 to synchronously lift and lower through the cross mounting frame 6, the outer surface of the driving rod 7 is movably sleeved with the inner wall of the guide tube 3, and one end of the multiple driving rods 7 penetrates and extends to the upper surface of the assembly table 1;

[0025] An adjusting device is provided at one end of the driving rod 7 , and the adjusting device includes a positioning sleeve 8 , and a lower surface of the positioning sleeve 8 is fixedly connected to one end of the driving rod 7 .

[0026] The outer surface of the driving rod 7 is fixedly connected with a guide slide bar 81, and the outer surface of the guide slide bar 81 is slidably connected with the inner wall of the curved groove 4. The guide slide bar 81 rotates when the driving rod 7 is lifted and lowered through the cooperation of the curved groove 4. The inner wall of the positioning sleeve 8 is movably sleeved with an adjustment block 82. The upper surface of the adjustment block 82 is provided with positioning holes 83 distributed in a linear array. The lower surface of the adjustment block 82 is fixedly connected with a rubber pressure block 84. The cooperation between the positioning sleeve 8 and the adjustment block 82 is suitable for clamping and positioning PCB boards of different models and sizes. The rubber pressure block 84 is fixedly connected with the outer surface of the driving rod 7. Block 84 plays a role in flexibly clamping the top of the PCB board to avoid scratches and damage. The upper surface of the positioning sleeve 8 is fixedly connected with symmetrically distributed guide rods 85. The outer surfaces of the two guide rods 85 are movably sleeved with movable blocks 86. The upper surface of the movable block 86 is fixedly connected with a pull ring 87. The guide rod 85 plays a role in guiding and limiting the movement of the movable block 86. The pull ring 87 facilitates the movement of the movable block 86. The lower surface of the movable block 86 is fixedly connected with a positioning rod 88, and one end of the positioning rod 88 passes through and extends to the interior of the positioning sleeve 8.

[0027] One end of the positioning rod 88 is movably plugged into the inner wall of one of the positioning holes 83, and a return spring 89 is movably sleeved on the outer surface of the guide rod 85. One ends of the two return springs 89 are fixedly connected to the lower surface of the movable block 86. The return spring 89 drives the positioning rod 88 to reset and move through the movable block 86. The other ends of the two return springs 89 are fixedly connected to the upper surface of the positioning sleeve 8. The lower surface of the assembly table 1 is fixedly connected with support legs 810 distributed in a rectangular array, and the outer surface of the support legs 810 is movably sleeved with a guide ring 811, and the outer surface of the guide ring 811 is fixedly connected with a connecting block 812. One ends of the multiple connecting blocks 812 are fixedly connected to a movable base 813. The cooperation between the guide ring 811 and the connecting block 812 makes the movable base 813 stably lift and move. A hydraulic cylinder 814 is fixedly installed on the lower surface of the assembly table 1, and one end of the piston rod of the hydraulic cylinder 814 is fixedly connected to the upper surface of the movable base 813.

[0028] By setting the adjusting device, it is possible to clamp and fix PCB boards of different models and sizes, and simultaneously clamp and fix the upper parts of the PCB boards on all sides, which is not only convenient to operate, but also low in cost and highly practical.

[0029] Working principle: Step 1, before assembly, adjust according to the size of the PCB board. During adjustment, the movable block 86 is driven to move upward through the pull ring 87. The upward movement of the movable block 86 stretches its reset spring 89 and drives the positioning rod 88 to disengage from the positioning hole 83. At this time, the adjustment block 82 is moved along the positioning sleeve 8 for adjustment. After the adjustment is completed, the pull ring 87 is released, and the reset elastic force of the reset spring 89 drives the movable plate to move downward. The downward movement of the movable plate drives the positioning rod 88 to be inserted into one of the positioning holes 83, thereby fixing the adjusted rubber pressing block 84;

[0030] Step 2: During assembly, place the PCB board on the storage table 2, start the piston rod of the servo electric cylinder 5 to extend, and the movement of the piston rod drives the driving rod 7 to move downward through the cross mounting frame 6. The downward movement of the driving rod 7 causes the driving rod 7 to rotate and descend through the cooperation of the guide slide bar 81 and the curved groove 4. The rotation and descent of the driving rod 7 drives the rubber pressing block 84 to rotate and press downward through the cooperation of the positioning sleeve 8 and the adjusting block 82, thereby clamping and fixing the PCB board on the storage table 2. When the assembly is completed, start the piston rod of the servo electric cylinder 5 to retract, and at this time the driving rod 7 rotates and rises in the opposite direction, thereby driving the rubber pressing block 84 to rotate and rise through the cooperation of the positioning sleeve 8 and the adjusting block 82, so as to facilitate the removal of the assembled PCB board and the placement of the PCB board to be assembled.

[0031] Step three, when it is necessary to move the assembly table 1, start the hydraulic cylinder 814 piston rod to extend the movement, the extension movement of the hydraulic cylinder 814 piston rod drives the mobile base 813 to move downward, and at the same time, the cooperation between the guide ring 811 and the connecting block 812 makes the mobile base 813 move stably, when the extension thrust of the hydraulic cylinder 814 piston rod makes the support leg 810 leave the ground, it can move, when it moves to the appropriate position, start the hydraulic cylinder 814 piston rod to retract, thereby driving the mobile base 813 off the ground, at this time the support leg 810 stably supports the assembly table 1.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. An adjustable assembly workbench for SMT processing, comprising an assembly table (1), characterized in that: The upper surface of the assembly table (1) is fixedly connected to a storage table (2); the inner top wall of the assembly table (1) is fixedly connected to guide tubes (3) distributed in a ring array; the outer surface of the guide tubes (3) is provided with a curved groove (4); the inner top wall of the assembly table (1) is fixedly installed with a servo electric cylinder (5); one end of the piston rod of the servo electric cylinder (5) is fixedly connected to a cross mounting frame (6); the upper surface of the cross mounting frame (6) is installed with drive rods (7) distributed in a ring array through bearings; the outer surface of the drive rod (7) is movably sleeved with the inner wall of the guide tube (3); one end of a plurality of the drive rods (7) penetrates and extends to the upper surface of the assembly table (1); One end of the driving rod (7) is provided with an adjustment device, and the adjustment device comprises a positioning sleeve (8), and the lower surface of the positioning sleeve (8) is fixedly connected to one end of the driving rod (7).

2. The adjustable assembly workbench for SMT processing according to claim 1, characterized in that: The outer surface of the driving rod (7) is fixedly connected to a guide slide bar (81), the outer surface of the guide slide bar (81) is slidably connected to the inner wall of the curved groove (4), and the inner wall of the positioning sleeve (8) is movably sleeved with an adjustment block (82).

3. The adjustable assembly workbench for SMT processing according to claim 2, characterized in that: The upper surface of the adjustment block (82) is provided with positioning holes (83) distributed in a linear array, the lower surface of the adjustment block (82) is fixedly connected to a rubber pressure block (84), and the upper surface of the positioning sleeve (8) is fixedly connected to guide rods (85) distributed in a symmetrical manner.

4. The adjustable assembly workbench for SMT processing according to claim 3, characterized in that: The outer surfaces of the two guide rods (85) are movably sleeved with movable blocks (86), the upper surfaces of the movable blocks (86) are fixedly connected with pull rings (87), the lower surfaces of the movable blocks (86) are fixedly connected with positioning rods (88), and one end of the positioning rod (88) penetrates and extends into the interior of the positioning sleeve (8).

5. The adjustable assembly workbench for SMT processing according to claim 4, characterized in that: One end of the positioning rod (88) is movably plugged into the inner wall of one of the positioning holes (83); a return spring (89) is movably sleeved on the outer surface of the guide rod (85); one end of the two return springs (89) are fixedly connected to the lower surface of the movable block (86).

6. The adjustable assembly workbench for SMT processing according to claim 5, characterized in that: The other ends of the two return springs (89) are fixedly connected to the upper surface of the positioning sleeve (8), and the lower surface of the assembly table (1) is fixedly connected to support legs (810) distributed in a rectangular array, and the outer surface of the support legs (810) is movably sleeved with a guide ring (811).

7. The adjustable assembly workbench for SMT processing according to claim 6, characterized in that: The outer surface of the guide ring (811) is fixedly connected to a connection block (812), one end of each of the connection blocks (812) is fixedly connected to a movable base (813), a hydraulic cylinder (814) is fixedly mounted on the lower surface of the assembly table (1), and one end of the piston rod of the hydraulic cylinder (814) is fixedly connected to the upper surface of the movable base (813).

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