A pin welding device with a defective product screening and defective product repair station structure

Abstract

The present invention relates to the technical field of discharge tube production and discloses a pin welding device with a defective product screening and defective product repair welding station structure, comprising a material conveyor frame, wherein the inner top and bottom of the material conveyor frame are fixedly mounted with staggered extrusion detectors, the bottom of the material conveyor frame is fixedly mounted with a material conveying motor, the bottom of the material conveyor frame is rotatably mounted with two push gears extending to the inner side of the material conveyor frame, the outer side of the output shaft of the material conveyor motor is provided with a transmission belt connected to the push gears, the left side of the material conveyor frame is connected to a feed hopper, the inner top wall of the material conveyor frame is fixedly mounted with a secondary detection sensor located to the right of the extrusion detector, and the right side of the material conveyor frame is connected to a material separation member. This pin welding device with defective product screening and defective product repair welding station structure has the advantages of convenient product inspection and defective product detection.

Description

Technical Field

[0001] The present invention relates to the technical field of discharge tube production, in particular to a pin welding device with a defective product screening and defective product repair welding station structure. Background Art

[0002] A discharge tube is a high-voltage protection component used at the input of a device. If the voltage across it exceeds its specified protection level, a short circuit will occur within it, absorbing the excessively high voltage. During the production process, discharge tubes require soldering of pins at both ends to ensure they can be attached to other electrical equipment and function properly.

[0003] When welding, the existing pin welding device may cause some workpieces to be loosely welded or fail due to reasons such as pin length error or precision error caused by pin wear. However, the welding device cannot detect this part of the workpiece and cannot weld it again, which is very inconvenient. Therefore, a pin welding device with a defective product screening and defective product repair station structure is proposed to solve the above problems. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a pin welding device with a defective product screening and defective product repair station structure, which has the advantages of convenient product inspection and defective product inspection, and solves the problem that during welding, some workpieces may be loosely welded or fail due to pin length errors or precision errors caused by pin wear, but the welding device cannot detect this part of the workpiece and cannot weld it again, which is quite inconvenient.

[0006] (2) Technical solution

[0007] The technical solution of the present invention for solving the above technical problems is as follows: A pin welding device with a defective product screening and defective product repair welding station structure, comprising a material transport rack, wherein the inner top and bottom of the material transport rack are fixedly installed with extrusion detectors in staggered distribution, the bottom of the material transport rack is fixedly installed with a material transport motor, the bottom of the material transport rack is rotatably installed with two pushing gears extending to the inner side of the material transport rack, a transmission belt connected to the pushing gear is arranged on the outer side of the output shaft of the material transport motor, the left side of the material transport rack is connected with a feeding hopper, the inner top wall of the material transport rack is fixedly installed with a secondary detection sensor located on the right side of the extrusion detector on the right side, the right side of the material transport rack is connected with a material separating component, the bottom of the material separating component is connected with a qualified product collection container, and the right side of the material separating component is connected with a pin repair welding component;

[0008] The pin repair welding component includes a temporary storage container fixed to the right side of the material dividing component, the bottom of the temporary container is connected to the welding frame, the bottom of the welding frame is fixedly installed with a connecting piece, the top of the connecting piece is fixedly installed with two first cylinders that are symmetrically distributed on the front and rear sides of the welding frame, the telescopic ends of the two first cylinders are opposite, the opposite sides of the two first cylinders are fixedly installed with pneumatic clamps, the opposite sides of the two first cylinders are fixedly installed with small welding guns, the top of the connecting piece is fixedly installed with two tangent frames that are respectively located on the back sides of the two first cylinders, the interiors of the two tangent frames are slidably connected with pin wires extending to the pneumatic clamps, the inner side wall of the welding frame is fixedly installed with three detection sensors, the left side of the pin repair welding component is fixedly installed with a second cylinder that penetrates and extends into it, and the right side of the output end of the second cylinder is fixedly installed with a push plate.

[0009] The beneficial effects of the present invention are:

[0010] The pin welding equipment with a defective product screening and defective product repair station structure has the advantages of being able to conveniently test products and detect defective products.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the material dividing component includes a relay frame fixed to the right side of the material transport rack, an inclined hole connected to the temporary storage container is opened on the right side of the relay frame, a third cylinder is fixedly installed on the bottom of the material transport rack, and an interference block extending to the inside of the relay frame is fixedly installed on the right side of the third cylinder.

[0013] The beneficial effect of adopting the above further solution is that the arrangement of the material dividing component can conveniently distinguish normal products from defective products and divert them for transportation.

[0014] Furthermore, the right side of the interference block is tilted, and the slope of the right side of the interference block is consistent with the slope of the inclined hole.

[0015] The beneficial effect of adopting the above further solution is that the interference block arranged in this way can conveniently interfere with the movement direction of the product.

[0016] Furthermore, when the third cylinder is fully retracted, the right side of the interference block is flush with the inner left wall of the relay frame, and when the third cylinder is fully extended, the right side of the interference block contacts the inner right wall of the relay frame.

[0017] Furthermore, the extrusion detector is composed of an arc-shaped piece, a spring and a pressure sensor. The bottom of the upper extrusion detector is located below the center of the material transport rack, and the bottom of the lower extrusion detector is located above the center of the material transport rack.

[0018] The beneficial effect of adopting the above further solution is that the extrusion detector provided in this manner can determine whether a workpiece is qualified by extruding the pins at both ends of the workpiece when the workpiece passes through.

[0019] Furthermore, the material transport rack is a square tube, and a material transport channel with a cross-shaped cross section is provided inside the material transport rack, and the front and rear sides of the material transport channel are longer.

[0020] Furthermore, the tooth shape of the pushing gear is arc-shaped, the pushing gear on the left is located on the left side of the squeeze detector on the left, and the pushing gear on the right is located between the two squeeze detectors.

[0021] The beneficial effect of adopting the above further solution is that the push gear provided in this manner can conveniently accommodate the workpiece, so that it can be pushed forward better.

[0022] Furthermore, the qualified product collection container is sleeved on the outer side of the material separation component, and a clamping component extending to the interior of the material separation component is fixedly installed on the outer side of the qualified product collection container.

[0023] Furthermore, the clamping assembly includes a spring fixed to the outside of the qualified product collection container, and a section of the spring away from the qualified product collection container is fixedly connected to a C-shaped pin that penetrates and extends to the inside of the material separation component.

[0024] The beneficial effect of adopting the above further solution is that the provision of the snap-fit ​​assembly allows the qualified product collection container to be easily disassembled for collection inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0028] Figure 4 This is a diagram showing the connection between the material transport rack and the push gear of the present invention;

[0029] Figure 5 This is a schematic structural diagram of the clamping assembly of the present invention;

[0030] Figure 6 This is a schematic diagram of the pin repair welding component structure of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle.

[0032] In the figure: 1. Material transport rack; 2. Extrusion detector; 3. Material transport motor; 4. Push gear; 5. Transmission belt; 6. Feed hopper; 7. Secondary detection sensor; 8. Material dividing component; 801. Relay rack; 802. Inclined hole; 803. Third cylinder; 804. Interference block; 9. Qualified product collection container; 10. Pin repair component; 101. Temporary storage container; 102. Welding rack; 103. Connecting piece; 104. First cylinder; 105. Pneumatic gripper; 106. Small welding gun; 107. Wire cutting rack; 108. Pin wire; 109. Tertiary detection sensor; 110. Second cylinder; 111. Push plate; 11. Clamping assembly; 1101. Spring; 1102. C-type latch. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the embodiment, Figure 1-7 Provided is a pin welding device with a defective product screening and defective product repair welding station structure. The present invention includes a conveyor frame 1, the inner top and bottom of the conveyor frame 1 are fixedly installed with staggered extrusion detectors 2, the bottom of the conveyor frame 1 is fixedly installed with a conveying motor 3, the bottom of the conveyor frame 1 is rotatably installed with two pushing gears 4 extending to the inner side of the conveyor frame 1, the outer side of the output shaft of the conveyor motor 3 is provided with a transmission belt 5 connected to the pushing gear 4, the left side of the conveyor frame 1 is connected with a feeding hopper 6, the inner top wall of the conveyor frame 1 is fixedly installed with a secondary detection sensor 7 located on the right side of the right extrusion detector 2, the right side of the conveyor frame 1 is connected with a material separating component 8, the bottom of the material separating component 8 is connected with a qualified product collection container 9, and the right side of the material separating component 8 is connected with a pin repair welding component 10;

[0035] The left side of the material transport rack 1 is inclined.

[0036] The secondary detection sensor 7 is an interruption type photoelectric switch. The two end pins of the workpiece pass through its detection end. A counter is provided at the bottom of the material transport rack 1 , and the counter is electrically connected to the extrusion detector 2 .

[0037] The pressure change state of multiple pins when passing through the squeeze detector 2 is counted. When the pressure change suddenly decreases, it is determined that a breakage has occurred here, and the squeeze detector 2 generates a count.

[0038] The pin repair welding component 10 includes a temporary storage container 101 fixed to the right side of the material distribution component 8. The bottom of the temporary storage container 101 is connected to the welding frame 102. The bottom of the welding frame 102 is fixedly installed with a connecting piece 103. The top of the connecting piece 103 is fixedly installed with two first cylinders 104 that are symmetrically distributed on the front and back sides of the welding frame 102. The telescopic ends of the two first cylinders 104 are opposite to each other. The opposite sides of the two first cylinders 104 are fixedly installed with pneumatic clamps 105. The opposite sides of the two first cylinders 104 are fixed. A small welding gun 106 is installed, and two cutting racks 107 are fixedly installed on the top of the connecting piece 103 and are located on the opposite sides of the two first cylinders 104. The inside of the two cutting racks 107 is slidably connected with pin wires 108 extending to the pneumatic clamp 105. A three-detection sensor 109 is fixedly installed on the inner wall of the welding frame 102. A second cylinder 110 that penetrates and extends into the interior of the pin repair welding component 10 is fixedly installed on the left side, and a push plate 111 is fixedly installed on the right side of the output end of the second cylinder 110.

[0039] A proximity switch is installed on the top wall of the temporary storage container 101. An alarm is installed on the right side of the temporary storage container 101. The proximity switch determines the number of defective products stored in the temporary storage container. If the proximity switch is triggered, it means that there are a large number of defective products in this batch, and an alarm is sounded through the alarm.

[0040] In the pin repair welding component 10, a telescopic rod and a blocking piece are provided at the connection between the temporary storage container 101 and the welding rack 102. When the blocking piece is retracted, the connection channel between the temporary storage container 101 and the welding rack 102 can be opened. The size of the connection channel between the temporary storage container 101 and the welding rack 102 should be adapted to the discharge tube. When the three-time detection sensor 109 detects that the workpiece above it disappears, the telescopic rod drives the blocking piece to retract and extend after 0.5s. During the retraction and extension process of the blocking piece, a single discharge tube can be allowed to fall. When the telescopic rod moves and the three-time detection sensor 109 does not detect it, the telescopic rod moves again, and the extension and retraction cycle of the second cylinder 110 is 0.5s.

[0041] Two wire feeding members are fixedly mounted on the top of the connecting piece 103 and are located on the front and rear sides of the tangent frame 107 respectively. The wire feeding members are composed of an electric slide and a clamping claw. The stroke of the electric slide is consistent with the stroke of the first cylinder 104.

[0042] The arrangement of the wire feeding component can conveniently feed the lead wire.

[0043] The inner bottom wall of the welding rack 102 is provided with a position limiting groove, which is arc-shaped and matches the external shape and size of the workpiece. When the workpiece falls into the welding rack 102, it enters the position limiting groove and stabilizes there.

[0044] A collecting rack is provided on the right side of the pin repair welding component 10. After the workpiece is repaired, the repaired workpiece can be placed into the feed hopper 6 again for circulation detection.

[0045] Furthermore, the material dividing component 8 includes a relay frame 801 fixed to the right side of the material transport rack 1, and a relief inclined hole 802 connected to the temporary storage container 101 is opened on the right side of the relay frame 801. A third cylinder 803 is fixedly installed on the bottom of the material transport rack 1, and an interference block 804 extending to the inside of the relay frame 801 is fixedly installed on the right side of the third cylinder 803.

[0046] The beneficial effect of adopting the above further solution is that the arrangement of the material dividing component can conveniently distinguish normal products from defective products and divert them for transportation.

[0047] Furthermore, the right side of the interference block 804 is tilted, and the slope of the right side of the interference block 804 is consistent with the slope of the inclined hole 802 .

[0048] The beneficial effect of adopting the above further solution is that the interference block arranged in this way can conveniently interfere with the movement direction of the product.

[0049] Furthermore, when the third cylinder 803 is fully retracted, the right side of the interference block 804 is flush with the inner left wall of the relay frame 801 , and when the third cylinder 803 is fully extended, the right side of the interference block 804 contacts the inner right wall of the relay frame 801 .

[0050] Furthermore, the extrusion detector 2 is composed of an arc-shaped piece, a spring and a pressure sensor. The bottom of the upper extrusion detector 2 is located below the center of the material transport rack 1, and the bottom of the lower extrusion detector 2 is located above the center of the material transport rack 1.

[0051] The elastic deformation of the arc-shaped sheet and the spring is large.

[0052] The beneficial effect of adopting the above further solution is that the extrusion detector provided in this manner can determine whether a workpiece is qualified by extruding the pins at both ends of the workpiece when the workpiece passes through.

[0053] Furthermore, the material transport rack 1 is a square tube, and a material transport channel with a cross-section is provided inside the material transport rack, and the front and rear sides of the material transport channel are longer.

[0054] The material transport rack of this configuration can ensure that the interior of the material transport rack 1 is only large enough to accommodate a single discharge tube. Meanwhile, the size of the internal material transport channel of the material transport rack should be adapted to the discharge tube.

[0055] Furthermore, the tooth shape of the pushing gear 4 is arc-shaped, the left pushing gear 4 is located on the left side of the left squeeze detector 2 , and the right pushing gear 4 is located between the two squeeze detectors 2 .

[0056] The beneficial effect of adopting the above further solution is that the push gear provided in this manner can conveniently accommodate the workpiece, so that it can be pushed forward better.

[0057] Furthermore, the qualified product collecting container 9 is sleeved on the outer side of the material separating component 8 , and a clamping assembly 11 extending to the interior of the material separating component 8 is fixedly installed on the outer side of the qualified product collecting container 9 .

[0058] Furthermore, the clamping assembly 11 includes a spring 1101 fixed to the outside of the qualified product collection container 9 , and a section of the spring away from the qualified product collection container 9 is fixedly connected to a C-shaped pin 1102 that penetrates and extends to the inside of the material separation component 8 .

[0059] The beneficial effect of adopting the above further solution is that the provision of the snap-fit ​​assembly allows the qualified product collection container to be easily disassembled for collection inside.

[0060] Working principle:

[0061] 1. When a workpiece needs to be inspected, the workpiece can be placed inside the feed hopper 6, and allowed to pass through the feed hopper 6 into the transport rack 1 under the action of gravity. At this time, the transport motor 3 drives the push gear 4 through the transmission belt 5 to start rotating, and the workpiece that has arrived at the push gear 4 starts to move to the right, and the workpiece on the left pushes the workpiece on the right to start moving;

[0062] Second, when the workpiece reaches the extrusion detector 2, the pins at both ends begin to squeeze with the extrusion detector 2 and deform to a certain extent. At the same time, the spring begins to squeeze the pressure sensor to determine whether the pins at that location are qualified. When the workpiece reaches the second extrusion detector 2, a force in the opposite direction of the first squeezing is generated, making the detection more comprehensive.

[0063] 3. If the workpiece falls off during the extrusion process, it means that the workpiece is unqualified. When the unqualified workpiece reaches the material separation component 8, the secondary detection sensor 7 re-detects the workpiece. If it is judged to be unqualified, the third cylinder 803 changes to the extended state. At this time, after the workpiece enters the material separation component 8, it can enter the pin welding component 10 under the action of gravity and the interference block 804. If it is judged to be qualified, the third cylinder 803 changes to the retracted state. At this time, the workpiece can directly enter the qualified product collection container 9 under the action of gravity.

[0064] 4. After the defective workpiece passes through the temporary storage container 101 and arrives inside the welding rack 102, it is inspected by the three-stage detection sensor 109 to know which end of the workpiece needs to be repaired. At this time, the wire cutting rack 107 at that end cuts the pin wire 108, and then the first cylinder 104 drives the cut pin wire to move toward the workpiece. When it reaches the workpiece, it can be welded by the small welding gun 106.

[0065] 5. After welding is completed, the second cylinder 110 pushes the push plate 111, pushing the workpiece on its right side to move to the right and separate from the pin repair welding component 10 and enter the collection rack. At this time, the repair welding operation is completed. At the same time, the workpiece that has passed the inspection can also be directly removed and collected through the clamping component 11.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pin welding device with a defective product screening and defective product repair station structure, comprising a material transport rack (1), characterized in that: The top and bottom of the inner side of the material transport rack (1) are fixedly mounted with staggered extrusion detectors (2), the bottom of the material transport rack (1) is fixedly mounted with a material transport motor (3), the bottom of the material transport rack (1) is rotatably mounted with two pushing gears (4) extending to the inner side of the material transport rack (1), the outer side of the output shaft of the material transport motor (3) is provided with a transmission belt (5) connected to the pushing gear (4), the left side of the material transport rack (1) is connected to a feed hopper (6), the inner top wall of the material transport rack (1) is fixedly mounted with a secondary detection sensor (7) located on the right side of the extrusion detector (2), the right side of the material transport rack (1) is connected to a material separation component (8), the bottom of the material separation component (8) is connected to a qualified product collection container (9), and the right side of the material separation component (8) is connected to a pin welding component (10); The pin repair welding component (10) includes a temporary storage container (101) fixed to the right side of the material distribution component (8), the bottom of the temporary storage container (101) is connected to the welding frame (102), the bottom of the welding frame (102) is fixedly installed with a connecting piece (103), the top of the connecting piece (103) is fixedly installed with two first cylinders (104) symmetrically distributed on the front and back sides of the welding frame (102), the telescopic ends of the two first cylinders (104) are opposite, the opposite sides of the two first cylinders (104) are fixedly installed with pneumatic clamps (105), and the opposite sides of the two first cylinders (104) are fixedly installed with pneumatic clamps (105). A small welding gun (106) is fixedly installed, two cutting frames (107) are fixedly installed on the top of the connecting piece (103) and are respectively located on the opposite sides of the two first cylinders (104), and the insides of the two cutting frames (107) are slidably connected with pin wires (108) extending to the pneumatic clamp (105), and a three-detection sensor (109) is fixedly installed on the inner wall of the welding frame (102), and a second cylinder (110) is fixedly installed on the left side of the pin repair welding component (10) that penetrates and extends into the inside thereof, and a push plate (111) is fixedly installed on the right side of the output end of the second cylinder (110); In the pin repair welding component (10), a telescopic rod and a blocking piece are provided at the connection between the temporary storage container (101) and the welding frame (102); when the blocking piece is retracted, the connection channel between the temporary storage container (101) and the welding frame (102) is opened; The material dividing member (8) comprises a relay frame (801) fixed to the right side of the material transport frame (1); an inclined hole (802) communicating with the temporary storage container (101) is provided on the right side of the relay frame (801); a third cylinder (803) is fixedly mounted on the bottom of the material transport frame (1); and an interference block (804) extending into the interior of the relay frame (801) is fixedly mounted on the right side of the third cylinder (803).

2. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 1 is characterized in that: The right side of the interference block (804) is arranged in an inclined manner, and the slope of the right side of the interference block (804) is consistent with the slope of the inclined hole (802).

3. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 2 is characterized in that: When the third cylinder (803) is fully retracted, the right side of the interference block (804) is flush with the inner left wall of the relay frame (801); when the third cylinder (803) is fully extended, the right side of the interference block (804) contacts the inner right wall of the relay frame (801).

4. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 1 is characterized in that: The extrusion detector (2) is composed of an arc-shaped sheet, a spring and a pressure sensor. The bottom of the upper extrusion detector (2) is located below the center of the material transport rack (1), and the bottom of the lower extrusion detector (2) is located above the center of the material transport rack (1).

5. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 1 is characterized in that: The material transport rack (1) is a square tube, and a material transport channel with a cross-shaped cross section is provided inside the material transport rack (1), and the front and rear sides of the material transport channel are longer.

6. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 1, characterized in that: The tooth shape of the pushing gear (4) is arc-shaped. The left pushing gear (4) is located on the left side of the left squeeze detector (2), and the right pushing gear (4) is located between the two squeeze detectors (2).

7. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 1, characterized in that: The qualified product collection container (9) is sleeved on the outside of the material separation component (8), and a clamping assembly (11) extending into the interior of the material separation component (8) is fixedly mounted on the outside of the qualified product collection container (9).

8. The pin soldering equipment with a defective product screening and defective product repair station structure according to claim 7, characterized in that: The clamping assembly (11) comprises a spring (1101) fixed to the outside of the qualified product collection container (9), and a section of the spring away from the qualified product collection container (9) is fixedly connected to a C-shaped latch (1102) that penetrates and extends into the interior of the material separation member (8).

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