Flow detection mechanism of vacuum suction nozzle

Abstract

The utility model discloses a flow detection mechanism of a vacuum suction nozzle, comprising a detection bench, the upper surface of the detection bench is fixedly connected with a supporting seat, the upper surface of the supporting seat is fixedly provided with an air exhaust box, the front surface of the supporting seat is fixedly provided with prompting lamps which are symmetrically distributed, and the lower surface of the air exhaust box is fixedly communicated with a corrugated pipe. One end of the corrugated pipe penetrates through and extends to the lower surface of the supporting seat, one end of the corrugated pipe is fixedly communicated with a confluence block, the lower surface of the confluence block is fixedly communicated with symmetrically distributed detection pipes, and the outer surfaces of the detection pipes are fixedly provided with flow sensors. Manual labor is reduced, and the detection efficiency is greatly improved through rotary alternate feeding and discharging and detection of the two vacuum suction nozzles at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum suction nozzle detection, in particular to a flow detection mechanism of a vacuum suction nozzle. Background Art

[0002] The placement machine is a device that accurately places surface mount components on the PCB pads by moving the placement head. The suction nozzle, as a form of mobile placement head, can effectively absorb surface mount components. The principle is that after the placement machine nozzle contacts the electronic components, the air inside the nozzle is sucked out, and the external pressure is greater than the internal pressure of the nozzle, forming a negative pressure. Under the action of atmospheric pressure, the electronic components are pressed against the surface of the nozzle. The nozzle is one of the important components in the placement machine. The performance of the nozzle plays a decisive role in the working efficiency of the placement machine. After being used for a period of time, the nozzle will become blocked, resulting in material throwing and shutdown. Therefore, the nozzle needs to be cleaned and unblocked regularly, and the unblocked nozzle needs to pass the inspection before it can continue to be used.

[0003] Existing suction nozzles are mostly inspected manually through visual observation after cleaning and unblocking. As the working time increases, manual fatigue occurs, and the accuracy and efficiency of the inspection decrease as the working time increases, resulting in a large amount of manual labor. In addition, only one suction nozzle can be observed and inspected manually at a time, resulting in low inspection efficiency. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a flow detection mechanism for a vacuum suction nozzle, which reduces manual labor by performing automated blockage detection on the vacuum suction nozzle, and greatly improves the detection efficiency by rotating alternating loading and unloading and detecting two vacuum suction nozzles at a time.

[0005] The utility model proposes a flow detection mechanism for a vacuum suction nozzle, comprising a detection platform, the upper surface of the detection platform is fixedly connected with a support seat, the upper surface of the support seat is fixedly installed with an air extraction box, the front of the support seat is fixedly installed with symmetrically distributed warning lights, the lower surface of the air extraction box is fixedly connected with a bellows, one end of the bellows penetrates and extends to the lower surface of the support seat, one end of the bellows is fixedly connected with a manifold, the lower surface of the manifold is fixedly connected with symmetrically distributed detection tubes, and the outer surface of the detection tube is fixedly installed with a flow sensor;

[0006] The outer surface of the lower end of the detection tube is provided with a blockage alarm device, and the blockage alarm device includes a sealing pad block, and the inner wall of the sealing pad block is fixedly sleeved with the outer surface of the lower end of the detection tube.

[0007] Preferably, symmetrically distributed servo electric cylinders are fixedly mounted on the lower surface of the support seat, one end of the piston rods of the two servo electric cylinders are fixedly connected to the upper surface of the manifold block, and a rotating rod is mounted on the inner bottom wall of the detection table via a bearing.

[0008] Preferably, one end of the rotating rod passes through and extends to the upper surface of the detection platform, one end of the rotating rod is fixedly connected to a rotating detection disk, the upper surface of the rotating detection disk is provided with detection grooves distributed in a circular array, and the outer surface of the rotating rod is fixedly sleeved with a driving disk.

[0009] Preferably, the outer surface of the driving disk is provided with arc-shaped limiting grooves distributed in a circular array, the outer surface of the driving disk is provided with toggle grooves distributed in a circular array, and a servo motor is fixedly mounted on the inner bottom wall of the detection table.

[0010] Preferably, the output shaft of the servo motor is fixedly mounted with a rotating shaft via a coupling, one end of the rotating shaft is fixedly connected with an annular mounting block, and the outer surface of the annular mounting block is fixedly connected with symmetrically distributed connecting rods.

[0011] Preferably, one end of the two connecting rods is fixedly connected with an arc-shaped limit block, the outer surface of the arc-shaped limit block contacts the inner wall of one of the arc-shaped limit grooves, and the outer surface of the annular mounting block is fixedly connected with a telescopic sleeve.

[0012] Preferably, a telescopic block is movably sleeved on the inner wall of the telescopic sleeve, a lever is fixedly connected to the upper surface of the telescopic block, a return spring is fixedly connected to one side surface of the telescopic block, and one end of the return spring is fixedly connected to the inner wall of one side of the telescopic sleeve.

[0013] The beneficial effects of the utility model are embodied in:

[0014] By setting up a blockage alarm device, the vacuum suction nozzle can be automatically detected for blockage, reducing manual labor. In addition, the detection efficiency is greatly improved by rotating alternating loading and unloading and detecting two vacuum suction nozzles at a time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A front view of a flow detection mechanism of a vacuum nozzle provided by the utility model;

[0017] Figure 2 for Figure 1 A three-dimensional diagram of the structure of a manifold of a flow detection mechanism of a vacuum nozzle is shown;

[0018] Figure 3 for Figure 1 A three-dimensional diagram of the structure of a detection platform of a flow detection mechanism of a vacuum nozzle is shown;

[0019] Figure 4 for Figure 1 A three-dimensional diagram of the driving disk structure of a flow detection mechanism of a vacuum nozzle shown;

[0020] Figure 5 for Figure 1 An exploded view of the telescopic sleeve structure of a flow detection mechanism of a vacuum nozzle is shown.

[0021] In the attached drawings, 1. test bench; 2. support base; 3. vacuum box; 4. warning light; 5. bellows; 6. junction block; 7. test tube; 8. flow sensor; 9. sealing gasket; 91. servo electric cylinder; 92. rotating rod; 93. rotating test disk; 94. test slot; 95. driving disk; 96. arc limit slot; 97. toggle slot; 98. servo motor; 99. rotating shaft; 910. annular mounting block; 911. connecting rod; 912. arc limit block; 913. telescopic sleeve; 914. telescopic block; 915. toggle rod; 916. reset spring. 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 1-5, a flow detection mechanism for a vacuum suction nozzle, comprising a detection platform 1, the upper surface of the detection platform 1 is fixedly connected with a support base 2, the upper surface of the support base 2 is fixedly installed with an air extraction box 3, the upper end of the air extraction box 3 is provided with a connecting pipe for connecting to an external air extraction pump, the front of the support base 2 is fixedly installed with a symmetrically distributed prompt light 4, the lower surface of the air extraction box 3 is fixedly connected with a bellows 5, one end of the bellows 5 penetrates and extends to the lower surface of the support base 2, one end of the bellows 5 is fixedly connected with a confluence block 6, the telescopic characteristics of the bellows 5 play a role in cooperating with the lifting and moving of the confluence block 6, the lower surface of the confluence block 6 is fixedly connected with symmetrically distributed detection tubes 7, the confluence block 6 plays a role in confluence of two detection tubes 7, so as to realize the detection of two suction nozzles at a time, and the outer surface of the detection tube 7 is fixedly installed with a flow sensor 8;

[0025] The outer surface of the lower end of the detection tube 7 is provided with a blockage alarm device, and the blockage alarm device includes a sealing gasket block 9 , and the inner wall of the sealing gasket block 9 is fixedly sleeved with the outer surface of the lower end of the detection tube 7 .

[0026] A symmetrically distributed servo electric cylinder 91 is fixedly installed on the lower surface of the support seat 2, and one end of the piston rod of the two servo electric cylinders 91 is fixedly connected to the upper surface of the junction block 6. The telescopic movement of the piston rod of the servo electric cylinder 91 drives the junction block 6 to move up and down. A rotating rod 92 is installed on the inner bottom wall of the detection platform 1 through a bearing. One end of the rotating rod 92 passes through and extends to the upper surface of the detection platform 1. One end of the rotating rod 92 is fixedly connected to a rotating detection disk 93. The rotating rod 92 drives the rotating detection disk 93 to position and rotate. The upper surface of the rotating detection disk 93 is provided with detection grooves 94 distributed in a circular array. The outer surface of the rotating rod 92 is fixedly sleeved with a driving disk 95. The outer surface of the driving disk 95 is provided with arc-shaped limit grooves 96 distributed in a circular array. The outer surface of the driving disk 95 is provided with toggle grooves 97 distributed in a circular array. A servo motor 98 is fixedly installed on the inner bottom wall of the detection platform 1.

[0027] The output shaft of the servo motor 98 is fixedly mounted with a rotating shaft 99 through a coupling, one end of the rotating shaft 99 is fixedly connected with an annular mounting block 910, the outer surface of the annular mounting block 910 is fixedly connected with symmetrically distributed connecting rods 911, one end of the two connecting rods 911 are fixedly connected with arc-shaped limit blocks 912, the outer surface of the arc-shaped limit blocks 912 contacts the inner wall of one of the arc-shaped limit grooves 96, the outer surface of the annular mounting block 910 is fixedly connected with a telescopic sleeve 913, the inner wall of the telescopic sleeve 913 is movably sleeved with a telescopic block 914, the upper surface of the telescopic block 914 is fixedly connected with a lever 915, and one side surface of the telescopic block 914 is fixedly connected with a reset spring 916, the elastic force of the reset spring 916 plays a role in driving the telescopic block 914 to perform elastic expansion and contraction through the elastic force when the telescopic block 914 drives the lever 915 to rotate, and one end of the reset spring 916 is fixedly connected to the inner wall of one side of the telescopic sleeve 913.

[0028] By setting up a blockage alarm device, the vacuum suction nozzle can be automatically detected for blockage, reducing manual labor. In addition, the detection efficiency is greatly improved by rotating alternating loading and unloading and detecting two vacuum suction nozzles at a time.

[0029] Working principle: Step 1, two staff members are respectively located on the left and right sides of the detection table 1. The staff member on the left side places the suction nozzle to be detected in the detection slot 94, and then starts the servo motor 98 to drive the rotating shaft 99 to rotate one circle. The servo motor 98 drives the annular mounting block 910 to rotate through the rotating shaft 99. The rotation of the annular mounting block 910 drives the arc limit block 912 to rotate through the connecting rod 911. The rotation of the arc limit block 912 causes it to disengage from the arc limit slot 96. At the same time, through the rotation of the telescopic sleeve 913, the telescopic block 914 is inserted into the toggle slot 97 through the lever 915 to drive the drive disk 95 to rotate. The lever 915 is played by the reset spring 916 to shrink and cooperate when driving the drive disk 95 to rotate. When the drive disk 95 rotates ninety degrees, the lever 915 disengages from the toggle slot 97, and the rotation of the arc limit block 912 contacts with another arc limit slot 96, thereby limiting the rotated drive disk 95.

[0030] Step 2: The rotation of the driving disk 95 drives the rotating detection disk 93 to rotate through the rotating rod 92, so that the suction nozzle to be detected rotates to the bottom of the support seat 2. At this time, the piston rod of the servo electric cylinder 91 is started to extend, thereby driving the detection tube 7 to contact the upper end of the suction nozzle through the junction block 6, and contacting and sealing the outer side of the suction nozzle through the sealing pad 9, and then starting the suction pump in the suction box 3. The suction pump pumps the gas inside the detection tube 7 upward through the cooperation of the bellows 5 and the junction block 6, so that the connection of the suction nozzle is detected by the flow sensor 8. When the gas flow in the detection tube 7 is greater than the preset value, there is no blockage in the surface suction nozzle. When the gas flow in one of the detection tubes 7 is lower than the preset value, there is still a blockage in the suction nozzle below the surface. At this time, the prompt light 4 is on, reminding the staff that the suction nozzle needs to be cleared and cleaned again;

[0031] Step three, after the detection is completed, start the piston rod of the servo electric cylinder 91 to retract, so that the detection tube 7 rises and moves away from the suction nozzle, and then the servo motor 98 drives the rotating shaft 99 to rotate one circle again, thereby driving the rotating detection disk 93 to rotate ninety degrees again through the cooperation of the lever 915 and the arc limit block 912. At this time, the staff on the right side removes the suction nozzle from the detection slot 94, and separates and stores the suction nozzle indicated by the prompt light 4. At the same time, the staff on the left side continues to place the suction nozzle to be detected every time the rotating detection disk 93 rotates, thereby improving the detection efficiency.

[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. A flow detection mechanism for a vacuum nozzle, comprising a detection platform (1), characterized in that: The upper surface of the detection platform (1) is fixedly connected to a support base (2), the upper surface of the support base (2) is fixedly mounted with an exhaust box (3), the front surface of the support base (2) is fixedly mounted with symmetrically distributed warning lights (4), the lower surface of the exhaust box (3) is fixedly connected to a bellows (5), one end of the bellows (5) penetrates and extends to the lower surface of the support base (2), one end of the bellows (5) is fixedly connected to a manifold (6), the lower surface of the manifold (6) is fixedly connected to symmetrically distributed detection tubes (7), and a flow sensor (8) is fixedly mounted on the outer surface of the detection tube (7); The outer surface of the lower end of the detection tube (7) is provided with a blockage alarm device, and the blockage alarm device comprises a sealing gasket (9), the inner wall of the sealing gasket (9) is fixedly sleeved with the outer surface of the lower end of the detection tube (7).

2. The flow detection mechanism of the vacuum nozzle according to claim 1, characterized in that: The lower surface of the support seat (2) is fixedly mounted with symmetrically distributed servo electric cylinders (91), one end of the piston rods of the two servo electric cylinders (91) is fixedly connected to the upper surface of the manifold block (6), and the inner bottom wall of the detection platform (1) is mounted with a rotating rod (92) via a bearing.

3. The flow detection mechanism of the vacuum nozzle according to claim 2, characterized in that: One end of the rotating rod (92) passes through and extends to the upper surface of the detection platform (1); one end of the rotating rod (92) is fixedly connected to a rotating detection disk (93); the upper surface of the rotating detection disk (93) is provided with detection slots (94) distributed in a ring array; and the outer surface of the rotating rod (92) is fixedly sleeved with a driving disk (95).

4. The flow detection mechanism of the vacuum nozzle according to claim 3, characterized in that: The outer surface of the driving disk (95) is provided with arc-shaped limiting grooves (96) distributed in a circular array, the outer surface of the driving disk (95) is provided with toggle grooves (97) distributed in a circular array, and a servo motor (98) is fixedly mounted on the inner bottom wall of the detection platform (1).

5. The flow rate detection mechanism of the vacuum nozzle according to claim 4, characterized in that: The output shaft of the servo motor (98) is fixedly mounted with a rotating shaft (99) via a coupling, one end of the rotating shaft (99) is fixedly connected with an annular mounting block (910), and the outer surface of the annular mounting block (910) is fixedly connected with symmetrically distributed connecting rods (911).

6. The flow rate detection mechanism of the vacuum nozzle according to claim 5, characterized in that: One end of each of the two connecting rods (911) is fixedly connected to an arc-shaped limit block (912), the outer surface of the arc-shaped limit block (912) contacts the inner wall of one of the arc-shaped limit grooves (96), and the outer surface of the annular mounting block (910) is fixedly connected to a telescopic sleeve (913).

7. The flow detection mechanism of the vacuum nozzle according to claim 6, characterized in that: A telescopic block (914) is movably sleeved on the inner wall of the telescopic sleeve (913); a lever (915) is fixedly connected to the upper surface of the telescopic block (914); a return spring (916) is fixedly connected to a side surface of the telescopic block (914); and one end of the return spring (916) is fixedly connected to an inner wall of one side of the telescopic sleeve (913).

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