An automatic assembly machine for charging gun terminals of new energy vehicles

Abstract

The present invention relates to an automatic assembly machine for charging gun terminals of new energy vehicles, which includes a workbench, a long copper sleeve feeding mechanism, a grid forming and sleeving mechanism, a first expanding structure, a short copper sleeve sleeving mechanism, a rotating mechanism, a transfer mechanism, a second expanding structure, a short copper sleeve sleeving torsion spring mechanism, and a detection mechanism. The present invention can perform fully automatic assembly of terminals, avoiding manual operation, greatly improving work efficiency, reducing production costs, using mechanical equipment for the torsion spring to avoid the change in the spacing of the grid grooves on the grid sleeve due to force problems, ensuring the integrity of the end face, improving product quality, facilitating large-scale production of products, and increasing enterprise benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and particularly relates to an automatic assembly machine for charging gun terminals of new energy vehicles. Background Art

[0002] With the development of technologies in the industries related to new energy vehicles, fast charging piles, and grid energy storage, the demand for high-voltage and high-current connectors is increasing. Connectors with a torsion spring terminal structure have advantages such as good electrical connection performance, shock resistance, high reliability, and convenient plugging and unplugging, and are widely used.

[0003] As Figures 1-6 shown, the existing charging terminals for new energy vehicles generally consist of a grid sleeve 1, a long barrel sleeve 2, and a short copper sleeve 3. During assembly, first, the connected grid net 5 is cut, then curled into a grid sleeve, then the long sleeve is sleeved into the middle of the grid sleeve, and finally the short copper sleeve is sleeved at both ends of the long barrel sleeve.

[0004] Currently, the assembly of charging terminals mostly adopts manual production methods, and its main disadvantages are:

[0005] 1. It is difficult to control the torsion force when twisting the spring for the grid, which affects the plugging and unplugging force performance.

[0006] 2. When twisting the spring, since the tip of a pair of needle-nose pliers is used to catch into the card slot at the end of the grid sleeve to perform the torsion spring operation on the grid sleeve, the grid slots at the end of the grid sleeve are easily affected by the force of the needle-nose pliers, resulting in a change in the distance between the grid slot 4 and the grid slots, affecting the subsequent welding process and the product performance.

[0007] 3. Manual assembly has low work efficiency and high costs. Summary of the Invention

[0008] Aiming at the deficiencies in the background art, the present invention provides an automatic assembly machine for charging gun terminals of new energy vehicles.

[0009] The technical solution adopted by the present invention is: an automatic assembly machine for charging gun terminals of new energy vehicles, including:

[0010] A workbench, on which a first rotating work disk and a second rotating work disk are provided, and tooling fixtures are fixed on the first rotating work disk and the second rotating work disk;

[0011] A long copper sleeve feeding mechanism, which is used to feed the long copper sleeve into the tooling fixture on the first rotating work disk;

[0012] A grid forming and sleeving mechanism, which is used to form the grid into a cylindrical grid sleeve and sleeve it into the long barrel sleeve;

[0013] The first expanding structure, which is used to expand one end of the grid sleeve into a fan shape;

[0014] The short copper sleeve sleeving mechanism, which is used to sleeve the short copper sleeve onto one end of the grid sleeve expanded into a fan shape;

[0015] The rotating mechanism, which is used to rotate the grid sleeve sleeved with the short copper sleeve to a specific position;

[0016] The transfer mechanism, which is used to move the grid sleeve sleeved with the short copper sleeve into the fixture on the second rotating working disk;

[0017] The second expanding structure, which is used to expand the other end of the grid sleeve into a fan shape;

[0018] The short copper sleeve sleeving torsion spring mechanism, which is used to sleeve the short copper sleeve onto one end of the grid sleeve expanded into a fan shape and drive one end of the grid sleeve to rotate, so that the grid sleeve forms a twist structure;

[0019] The detection mechanism, which is used to detect whether the assembled terminal is qualified;

[0020] The long copper sleeve feeding mechanism, the grid forming and sleeving mechanism, the first expanding structure, the copper sleeve sleeving mechanism and the rotating mechanism are sequentially arranged around the working table on the outer periphery of the first rotating working disk. The transfer mechanism is arranged between the first rotating working disk and the second rotating working disk. The second expanding structure, the short copper sleeve sleeving torsion spring mechanism and the detection mechanism are sequentially arranged around the working table on the outer periphery of the second rotating working disk.

[0021] Further, the long copper sleeve feeding mechanism includes a first feeding rail for the long copper sleeve to slide, a first long copper sleeve moving component, a first ejecting mechanism, a first rotating detection table, a second long copper sleeve moving component, a second ejecting mechanism, a first conveyor belt, a third copper long sleeve moving component, a third ejecting mechanism, a first inner and outer diameter detection mechanism and a first power mechanism for driving the first rotating detection table to rotate;

[0022] Further, the grid forming and sleeving mechanism includes a grid mesh feeding rail, a cutting table, a pushing component for pushing the grid mesh forward, a cutting mechanism for cutting the grid mesh, a forming mechanism for forming the cut grid mesh into a grid sleeve, a feeding mechanism for feeding the cut grid mesh into the forming mechanism, a moving and ejecting mechanism for moving and ejecting the formed grid sleeve into the long copper sleeve in the fixture, and a shrinking mechanism;

[0023] The pushing assembly is arranged at the front section of the grid mesh feeding rail, and the pushing assembly includes a slide rail slider assembly, a first pushing cylinder connected to the slider of the slide rail slider assembly, a pressure cylinder fixed on the slider, and a grid finger connected to the pressure cylinder;

[0024] The cutting mechanism is arranged above the cutting table, and includes a gantry, a connecting rod rotatably connected to the gantry, a knife holder fixed to the front end of the connecting rod, a grid cutter arranged on the knife holder, and a cutting cylinder connected to the rear end of the connecting rod;

[0025] The net feeding mechanism includes a net feeding cylinder, a grid net finger, a mesh net cylinder, a transverse cylinder, a net feeding bracket and a longitudinal cylinder, the net feeding cylinder is connected to the cutting table, the net feeding bracket is arranged on the workbench through a slide rail slider assembly, the net feeding bracket is provided with a first slide plate through the slide rail slider assembly, the mesh net cylinder is fixed on the first slide plate, the grid net finger is connected to the output end of the mesh net cylinder, the transverse cylinder is fixed on the net feeding bracket and the output end of the transverse cylinder is connected to the first slide plate, and the output end of the longitudinal cylinder is connected to the net feeding bracket;

[0026] The forming mechanism includes a "冂"-shaped bracket fixed on the workbench, a downward pressure cylinder arranged on the top of the "冂"-shaped bracket, a left cylinder and a right cylinder arranged on both sides of the "冂"-shaped bracket, an upper mold connected to the output end of the downward pressure cylinder, a left side plate connected to the left cylinder, a right side plate connected to the right cylinder, a forward cylinder fixed on the left side plate, a forming rod connected to the forward cylinder, a lower template arranged at the bottom of the "冂"-shaped bracket, a front auxiliary mold and a rear auxiliary mold arranged on the front and rear sides of the lower template, and a front cylinder and a rear cylinder connected to the front auxiliary mold and the rear auxiliary mold, the lower mold is provided with a semicircular forming groove, and the front auxiliary mold and the rear auxiliary mold are provided with a 1 / 4 circle forming groove;

[0027] The movable ejection mechanism comprises a first base fixed on the workbench, a receiving die slidably connected to the first base through a slide rail and slider assembly, a receiving cylinder connected to the receiving die, a first screw transmission mechanism arranged on the workbench, and a second ejector connected to a first transmission block of the first screw transmission mechanism, wherein a circular hole for placing the formed grid sleeve is provided on the receiving die;

[0028] The contraction mechanism comprises a finger cylinder fixed on the first base through a connecting plate and a contraction block connected to the finger of the finger cylinder, and a contraction hole is formed between the contraction blocks.

[0029] Furthermore, the first expansion structure and the second expansion structure both include an expansion cylinder and an expansion rod connected to the expansion cylinder.

[0030] Further, the short copper sleeve sleeving mechanism includes a second feeding rail for the short copper sleeve to slide into, a first short copper sleeve moving component, a fourth ejecting mechanism, a fifth ejecting mechanism, a second rotating detection table, a second inner and outer diameter detection mechanism, a second short copper sleeve moving component, a second conveyor belt, a third short copper sleeve moving component, a first sleeve pushing mechanism, a first stabilizing mechanism, a first steady dragging mechanism, and a second power mechanism for driving the second rotating detection table to rotate;

[0031] The sleeve pushing mechanism includes a first servo motor, a first pushing rod, and a first picking rod. The first pushing rod is connected to the output end of the first servo motor. The first picking rod extends into the telescopic hole of the first pushing rod. A first elastic member is connected between the bottom of the telescopic hole and the picking rod. The picking rod is provided with a first elastic steel ball;

[0032] The first stabilizing mechanism includes a first "L"-shaped bracket fixed on the workbench, a first stabilizing cylinder fixed on the first "L"-shaped bracket, a first connecting block connected to the first stabilizing cylinder, a first upper guiding plate arranged on the left side of the first connecting block, and a first stabilizing block arranged on the right side of the first connecting block. The left side of the first stabilizing block is attached to the right side of the fixture on the first rotating workbench;

[0033] The first steady dragging mechanism includes a first steady dragging cylinder fixed on the workbench and a first lower guiding plate connected to the output end of the first steady dragging cylinder. Both the first upper guiding plate and the first lower guiding plate are provided with first circular clamping grooves matching the short copper sleeve;

[0034] Further, the rotating mechanism includes a second base fixed on the workbench, a front pushing cylinder fixed on the second base, a first rotating motor connected to the front pushing cylinder, and a positioning head connected to the output end of the first rotating motor. The first rotating motor is slidably connected to the second base through a slide rail and slider assembly. The top of the positioning head is provided with a first clamping foot. On the bottom wall of the material hole of the fixture on the second rotating workbench, there is a second clamping foot. The second clamping foot can be clamped into the card slot of the grid sleeve;

[0035] Further, the transfer mechanism includes a support plate fixed on the workbench, a second lead screw transmission mechanism fixed on the support plate, and a cylinder finger connected to the second transmission block of the second lead screw transmission mechanism;

[0036] Further, the short copper sleeve sleeving torsion spring mechanism includes a mounting plate fixed on the workbench, a third feeding rail for the short copper sleeve to slide into, a fourth short copper sleeve moving component, a sixth ejecting mechanism, a seventh ejecting mechanism, a third rotating detection table, a fifth short copper sleeve moving component, a third conveyor belt, a sixth short copper sleeve moving component, a second sleeve pushing mechanism, a second stabilizing mechanism, a second steady dragging mechanism, a third power mechanism for driving the third rotating detection table to rotate, and a limiting mechanism;

[0037] The second ejection sleeve mechanism includes a second private service motor fixed on the mounting plate, a "冂"-shaped push rod connected to the second private service motor, an ejection fastener connected to the "冂"-shaped push rod, a second slide plate arranged on the mounting plate through a slide rail slider assembly, a second push cylinder fixed on the mounting plate and connected to the second slide plate, a second rotating motor fixed on the second slide plate, a second connecting block arranged on the second slide plate, a second pickup rod connected to the output end of the second rotating motor, the second pickup rod passes through the second connecting block and is connected to the second rotating motor, a second elastic steel ball is arranged in the second pickup rod, and a third clip-in foot is arranged on the top of the second pickup rod to be clipped into the clip groove of the grid sleeve;

[0038] The limiting mechanism comprises a limiting cylinder and a limiting plate, wherein the limiting cylinder is fixed at the bottom of the mounting plate, the limiting plate passes through the mounting plate and is connected with the limiting cylinder, and when the limiting plate is extended, it abuts against the step on the slide plate.

[0039] Furthermore, it also includes a deburring mechanism, which includes a deburring cylinder and a deburring rod;

[0040] The detection mechanism at least includes insertion force detection and extraction force detection.

[0041] Further, the first ejection mechanism, the second ejection mechanism, the third ejection mechanism, the fourth ejection mechanism, the fifth ejection mechanism, the sixth ejection mechanism and the seventh ejection mechanism all include an ejection cylinder and an ejection rod connected to the output end of the cylinder;

[0042] The first long copper sleeve moving assembly, the second long copper sleeve moving assembly, the first short copper sleeve moving assembly, the second short copper sleeve moving assembly, the third short copper sleeve moving assembly, the fourth short copper sleeve moving assembly, the fifth short copper sleeve moving assembly and the sixth short copper sleeve moving assembly all include a short copper sleeve cylinder and a short copper sleeve moving finger connected to the output end of the short copper sleeve cylinder, and the short copper sleeve moving finger is provided with a short copper sleeve shaft hole for placing the short copper sleeve.

[0043] The beneficial effects of the present invention are as follows: the present invention can fully automatically assemble the terminal, avoid manual operation, greatly improve work efficiency, reduce production costs, and use mechanical equipment for the torsion spring to avoid spacing changes in the grid grooves on the grid sleeve due to force problems, thereby ensuring the integrity of the end face, improving product quality, and being conducive to large-scale production of products and improving corporate benefits.

[0044] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0045] The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic structural diagram of a long copper sleeve.

[0047] Figure 2 It is a schematic structural diagram of a short copper sleeve.

[0048] Figure 3 It is a schematic structural diagram of a grid net.

[0049] Figure 4 It is a schematic structural diagram of a grid sleeve.

[0050] Figure 5 Schematic structural diagram of semi-finished product.

[0051] Figure 6 It is a schematic diagram of the assembled product.

[0052] Figure 7 It is a schematic structural diagram of the present invention.

[0053] Figure 8 It is a schematic structural diagram of the feeding mechanism for the long copper sleeve.

[0054] Figure 9 It is a schematic structural diagram of the grid forming and sleeving mechanism.

[0055] Figure 10 It is a schematic structural diagram of the grid forming and sleeving mechanism from another perspective.

[0056] Figure 11 For Figure 10 The enlarged schematic diagram at position D in

[0057] Figure 12 It is a schematic structural diagram of the cutting mechanism.

[0058] Figure 13 It is a top view schematic diagram of the grid forming and sleeving mechanism.

[0059] Figure 14 It is a schematic structural diagram of the forming mechanism.

[0060] Figure 15 It is a front view schematic diagram of the forming mechanism.

[0061] Figure 16 Schematic structural diagram at the shrinking mechanism.

[0062] Figure 17 For Figure 7 The enlarged schematic diagram at position B in

[0063] Figure 18 It is a schematic structural diagram of the short copper sleeve sleeving mechanism.

[0064] Figure 19 It is a schematic structural diagram of the first top sleeve mechanism.

[0065] Figure 20 Schematic diagram of the first top-in rod and the first pick-up rod structure

[0066] Figure 21 Cross-sectional schematic diagram of the first top-in rod and the first pick-up rod

[0067] Figure 22 Schematic diagram of the structure of the first stabilizing mechanism and the first steady-towing mechanism

[0068] Figure 23 For Figure 7 Enlarged schematic diagram at position A in

[0069] Figure 24 Schematic diagram of the structure of the transfer mechanism

[0070] Figure 25 Top view schematic diagram of the short copper sleeve set torsion spring mechanism

[0071] Figure 26 Isometric side schematic diagram of the short copper sleeve set torsion spring mechanism

[0072] Figure 27 Schematic diagram of the structure at the second top sleeve mechanism

[0073] Figure 28 Schematic diagram of the structure of the second pick-up rod

[0074] Figure 29 Figure 7 Enlarged schematic diagram at position C in

[0075] Figure 30 Schematic diagram of the structure of the ejection mechanism

[0076] Figure 31 Schematic diagram of the structure of the copper sleeve moving component

[0077] Figure 32 Tooling fixture on the second rotating working disk Specific implementation manners

[0078] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0079] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0080] Embodiment:

[0081] The present invention provides an automatic assembly machine for the terminals of a new energy vehicle charging gun.

[0082] In this embodiment, referring to Figures 7 to 32 , the automatic assembly machine for the terminals of the new energy vehicle charging gun includes a workbench A1, on which a first rotating work disk A2 and a second rotating work disk A3 are provided, and a tooling fixture A4 is fixed on the first rotating work disk A2 and the second rotating work disk A3;

[0083] A long copper sleeve feeding mechanism B100, which is used to feed the long copper sleeve into the tooling fixture on the first rotating work disk;

[0084] A grid forming and sleeving mechanism C100, which is used to form the grid into a cylindrical grid sleeve and sleeve it into the long cylinder sleeve;

[0085] A first expanding structure D100, which is used to expand one end of the grid sleeve into a sector shape;

[0086] A short copper sleeve sleeving mechanism E100, which is used to sleeve the short copper sleeve onto one end of the grid sleeve expanded into a sector shape;

[0087] A rotating mechanism F100, which is used to rotate the grid sleeve sleeved with the short copper sleeve to a specific position;

[0088] A transfer mechanism G100, which is used to move the grid sleeve sleeved with the short copper sleeve into the tooling fixture on the second rotating work disk;

[0089] A second expanding structure H100, which is used to expand the other end of the grid sleeve into a sector shape;

[0090] Short copper sleeve set torsion spring mechanism I100, which is used to fit a short copper sleeve onto one end of a grid sleeve that has been expanded into a fan shape and drive one end of the grid sleeve to rotate, so that the grid sleeve forms a twist structure;

[0091] Detection mechanism J100, which is used to detect whether the assembled terminal is qualified;

[0092] The long copper sleeve feeding mechanism, grid forming and sleeving mechanism, first expanding structure, copper sleeve sleeving mechanism and rotating mechanism are sequentially arranged around the workbench on the outer periphery of the first rotating working disk. The transfer mechanism is arranged between the first rotating working disk and the second rotating working disk. The second expanding structure, short copper sleeve set torsion spring mechanism and detection mechanism are sequentially arranged around the workbench on the outer periphery of the second rotating working disk.

[0093] The assembly steps of the present invention are as follows:

[0094] 1. Feeding of the long copper sleeve: Use the long copper sleeve feeding mechanism to feed the long copper sleeve and send it to the fixture on the first rotating working disk. At this time, the long copper sleeve is clamped on the fixture and rotates with the first rotating working disk and is sent to the next processing station;

[0095] 2. Forming and sleeving of the grid: Use the grid forming and sleeving mechanism to cut the continuous grid and form it into a grid sleeve, and then sleeve it into the long copper sleeve on the fixture. The long copper sleeve with the sleeved grid sleeve is sent to the next processing station by the first rotating working disk.

[0096] 3. Pre-expansion of the grid sleeve: Use the first expanding structure to first expand the head of the grid sleeve to facilitate the processing of subsequent processes.

[0097] 4. Sleeving of the short copper sleeve: Use the short copper sleeve sleeving mechanism to sleeve the short copper sleeve onto one end of the pre-expanded grid sleeve. After the short copper sleeve is sleeved, it is sent to the next processing station by the first rotating working disk.

[0098] 5. Rotation adjustment: Use the rotating mechanism to rotate the product with the sleeved short copper sleeve by a certain angle to meet the requirements of subsequent processing.

[0099] 6. Transfer of semi-finished products: Use the transfer mechanism to transfer the semi-finished products on the first rotating working disk to the second rotating working disk.

[0100] 7. Pre-expansion of the grid sleeve: Use the second expanding structure to pre-expand the other end of the grid sleeve.

[0101] 8. Sleeving of the short copper sleeve and torsion spring of the grid sleeve: Use the short copper sleeve set torsion spring mechanism to sleeve the short copper sleeve onto the other end of the grid sleeve and perform the torsion spring operation on the grid sleeve.

[0102] 9. Final product inspection: Use an inspection agency to inspect the final products.

[0103] Specifically, the long copper sleeve feeding mechanism includes a first feeding track B101 for the long copper sleeve to slide down, a first long copper sleeve moving component B102, a first ejecting mechanism B103, a first rotating inspection table B104, a second long copper sleeve moving component B105, a second ejecting mechanism B106, a first conveyor belt B107, a third long copper sleeve moving component B108, a third ejecting mechanism B109, a first inner and outer diameter inspection mechanism B110, and a first power mechanism B111 for driving the first rotating inspection table to rotate;

[0104] As Figure 8 shown, the long copper sleeve slides into along the first feeding track. First, use the first long copper sleeve moving component to move the long copper sleeve to the first rotating inspection table, then use the first inner and outer diameter inspection mechanism to inspect the inner and outer diameters of one end of the long copper sleeve. Use the first power mechanism to rotate the first rotating inspection table by 180°, and then inspect the inner and outer diameters of the other end of the long copper sleeve. For those that fail the inspection, directly use the first ejecting mechanism to eject the unqualified long copper sleeve from the first rotating inspection table and into the waste collection box. For those that pass the inspection, the second long copper sleeve moving component goes to catch the long copper sleeve ejected from the first rotating inspection table by the first ejecting mechanism and moves it to the first conveyor belt. After moving it to the first conveyor belt, use the second ejecting mechanism to eject the long copper sleeve onto the first conveyor belt. After the long copper sleeve is conveyed to the third long copper sleeve moving component by the first conveyor belt, the third long copper sleeve moving component moves it in front of the third ejecting mechanism. Finally, the third ejecting mechanism ejects the long copper sleeve into the clamping of the first rotating working disk, and the long copper sleeve is conveyed to the corresponding station of the grid forming and sleeving mechanism under the action of the first rotating working disk.

[0105] Specifically, the grid forming and sleeving mechanism includes a grid mesh feeding track C101, a cutting table C102, a pushing component C103 for pushing the grid mesh forward, a cutting mechanism C104 for cutting the grid mesh, a forming mechanism C105 for forming the cut grid mesh into a grid sleeve, a mesh feeding mechanism C106 for feeding the cut grid mesh into the forming mechanism, a moving and ejecting mechanism C107 for moving the formed grid sleeve and ejecting it into the long copper sleeve in the tooling fixture, and a shrinking mechanism C108;

[0106] The working principle of the grid forming and sleeving mechanism is as follows: The continuous grid mesh is fed through the grid mesh feeding track, then the grid mesh is cut into segments by the cutting mechanism, and then the grid mesh is formed into a grid sleeve by the forming mechanism. Finally, the grid sleeve is sleeved into the long copper sleeve by the moving and ejecting mechanism.

[0107] The pushing assembly is arranged at the front section of the grid mesh feeding rail, and the pushing assembly includes a slide rail slider assembly C109, a first pushing cylinder C110 connected to the slider of the slide rail slider assembly, a pressure cylinder C111 fixed on the slider, and a grid finger C112 connected to the pressure cylinder;

[0108] The pushing component provides power for feeding the grid mesh. When in use, the pressure cylinder moves downward, the grid fingers on the pressure cylinder are inserted into the holes of the grid mesh, and the first pushing cylinder is used to push the grid mesh for feeding.

[0109] The cutting mechanism is arranged above the cutting table, and includes a gantry C114, a connecting rod C115 rotatably connected to the gantry, a tool holder C116 fixed to the front end of the connecting rod, a grid cutter C117 arranged on the tool holder, and a cutting cylinder C118 connected to the rear end of the connecting rod;

[0110] The net feeding mechanism includes a net feeding cylinder C119, a grid net finger C120, a mesh net cylinder C121, a transverse cylinder C122, a net feeding bracket C123 and a longitudinal cylinder C124, the net feeding cylinder is connected to the cutting table, the net feeding bracket is arranged on the workbench through a slide rail slider assembly, the net feeding bracket is provided with a first slide plate C125 through the slide rail slider assembly, the mesh net cylinder is fixed on the first slide plate, the grid net finger is connected to the output end of the mesh net cylinder, the transverse cylinder is fixed on the mesh feeding bracket and the output end of the transverse cylinder is connected to the first slide plate, and the output end of the longitudinal cylinder is connected to the net feeding bracket;

[0111] The mesh feeding mechanism is used to feed the cut grid mesh into the forming mechanism for forming. The mesh feeding cylinder pushes the cut grid mesh from the cutting table, and then the longitudinal cylinder drives the grid mesh fingers to clamp the grid mesh, and then uses the transverse cylinder to feed the grid mesh into the forming mechanism.

[0112] The molding mechanism includes a "冂"-shaped bracket C126 fixed on the workbench, a downward pressure cylinder C127 arranged on the top of the "冂"-shaped bracket, a left cylinder C128 and a right cylinder C129 arranged on both sides of the "冂"-shaped bracket, an upper mold C130 connected to the output end of the downward pressure cylinder, a left side plate C131 connected to the left cylinder, a right side plate C132 connected to the right cylinder, a forward cylinder C133 fixed on the left side plate, a molding rod C134 connected to the forward cylinder, a lower mold plate C135 arranged at the bottom of the "冂"-shaped bracket, a front auxiliary mold C136 and a rear auxiliary mold C137 arranged on the front and rear sides of the lower mold plate, and a front cylinder C138 and a rear cylinder C139 connected to the front auxiliary mold and the rear auxiliary mold, a semicircular molding groove C140 is provided on the lower mold, and a 1 / 4 circular molding groove C141 is provided on the front auxiliary mold and the rear auxiliary mold;

[0113] The forming mechanism is used to form the cut grid mesh into a grid sleeve. When working, the cut grid mesh is placed on the lower die, and the left and right cylinders drive the forming rod downward and press the forming rod into the semicircular forming groove. Then the front cylinder and the rear cylinder drive the front auxiliary die and the rear auxiliary die to move toward the forming rod, and the downward pressing cylinder drives the upper die downward to form the grid mesh into a grid sleeve. Finally, the forward cylinder is used to send the grid sleeve to the receiving die.

[0114] The mobile ejection mechanism comprises a first base C142 fixed on the workbench, a receiving mold C143 slidably connected to the first base through a slide rail and slider assembly, a receiving cylinder C144 connected to the receiving mold, a first screw transmission mechanism C145 arranged on the workbench, and a second ejector C146 connected to the first transmission block of the first screw transmission mechanism. The receiving mold is provided with a circular hole C147 for placing the formed grid sleeve;

[0115] The movable ejection mechanism is used to move the grid sleeve and push the grid sleeve into the long copper sleeve. Its working principle is: the material receiving cylinder drives the material receiving mold to connect the grid sleeve to the front end of the second ejector rod, and the first screw transmission mechanism drives the second ejector rod to push the grid sleeve into the long copper sleeve.

[0116] The retracting mechanism includes a finger cylinder C148 fixed to the first base through a connecting plate and a retracting block C149 connected to the finger of the finger cylinder, and a retracting hole C150 is formed between the retracting blocks.

[0117] The retracting mechanism is used to slightly retract the front end of the grid mesh to facilitate pushing the grid sleeve into the long copper sleeve.

[0118] Specifically, the first expansion structure and the second expansion structure both include an expansion cylinder D101 and an expansion rod D102 connected to the expansion cylinder.

[0119] like Figure 17 As shown, the end of the grid copper sleeve is pre-opened a little by using the expansion structure to facilitate the subsequent insertion of the short copper sleeve.

[0120] In order to ensure that the grid copper sleeve can be completely inserted into the long tube sleeve, a flattening mechanism can be set between the grid forming sleeve mechanism and the short copper sleeve sleeve mechanism, such as the flattening mechanism recorded in the high-voltage and high-current connector terminal fully automatic assembly machine and process method disclosed in application number 201911255454.2.

[0121] Specifically, the short copper sleeve set mechanism includes a second feed rail E101 for sliding the short copper sleeve, a first short copper sleeve moving assembly E102, a fourth ejection mechanism E103, a fifth ejection mechanism E104, a second rotating detection platform E105, a second inner and outer diameter detection mechanism E106, a second short copper sleeve moving assembly E107, a second conveyor belt E108, a third short copper sleeve moving assembly E109, a first ejection mechanism E110, a first stabilizing mechanism E111, a first stabilizing mechanism E112, and a second power mechanism E113 for driving the second rotating detection platform to rotate;

[0122] The action mechanism of the short copper sleeve fitting mechanism is as follows: the short copper sleeve is fed from the second feeding rail, and then moved to the right side of the second rotating inspection table by the first short copper sleeve moving assembly, and then pushed into the second rotating inspection table by the fourth ejection mechanism, and then the inner and outer diameters of the short copper sleeve are detected by the second inner and outer diameter detection mechanism, and then the second short copper sleeve moving assembly is used to move the short copper sleeve to the second conveyor belt, and then the third short copper sleeve moving assembly is used to move it to the right side of the first ejection mechanism, and finally the first ejection mechanism is used to eject the short copper sleeve into the grid sleeve with the long copper sleeve fitted.

[0123] The ejection mechanism includes a first private service motor E114, a first ejection rod E115 and a first pickup rod E116, wherein the first ejection rod is connected to the output end of the first private service motor, the first pickup rod extends into the telescopic hole of the first ejection rod, a first elastic member E117 is connected between the bottom of the telescopic hole and the pickup rod, and the pickup rod is provided with a first elastic steel ball E118;

[0124] The push sleeve mechanism is used to complete two actions: 1. Picking up the item. The first picking rod is inserted into the hole of the short copper sleeve under the action of the first private service motor, and the short copper sleeve is removed by the friction between the first elastic steel ball and the inner wall of the short copper sleeve; 2. Installing the copper sleeve. After picking up the item, the first push rod and the first picking rod are retracted first to allow the third short copper sleeve moving assembly to return to its position, and then the short copper sleeve is pushed into the grid copper sleeve. At this time, since the first elastic part is connected between the bottom of the telescopic hole and the picking rod, the first picking rod can be retracted to the telescopic hole, and the first push rod and the short copper sleeve are used to push into the grid sleeve. The first picking rod can be retracted into the deep hole to effectively prevent the first picking rod from damaging the end of the grid sleeve and causing wear on the end of the grid sleeve, which helps to improve product quality and facilitate subsequent processes. The first private service motor can use a linear private service motor, or a cylinder or oil cylinder as the power output.

[0125] Among them, the first stabilizing mechanism includes a first "L"-shaped bracket E119 fixed to the workbench, a first stabilizing cylinder E120 fixed to the first "L"-shaped bracket, a first connecting block E121 connected to the first stabilizing cylinder, a first upper guide plate E122 arranged on the left side of the first connecting block, and a first stabilizing block E123 arranged on the right side of the first connecting block. The left side of the first stabilizing block is attached to the right side of the fixture on the first rotating workbench;

[0126] Since the required jacking force for sleeving the short copper sleeve is relatively large, setting the first stabilizing mechanism can provide a supporting force for the fixture, preventing the fixture from being pushed open by the jacking force and disengaging. This helps to improve the stability of the equipment.

[0127] The first stabilizing mechanism includes a first stabilizing cylinder E124 fixed to the workbench and a first lower guide plate E125 connected to the output end of the first stabilizing cylinder. First circular clamping grooves E126 matching the short copper sleeve are provided on both the first upper guide plate and the first lower guide plate;

[0128] When the short copper sleeve is jacked into the grid sleeve, the short copper sleeve passes through the first circular clamping groove between the first upper guide plate and the first lower guide plate, ensuring that the short copper sleeve can be accurately sleeved into the grid sleeve.

[0129] Specifically, the rotating mechanism includes a second base F101 fixed to the workbench, a forward push cylinder F102 fixed to the second base, a first rotating motor F103 connected to the forward push cylinder, and a positioning head F104 connected to the output end of the first rotating motor. The first rotating motor is slidably connected to the second base through a slide rail-slider assembly. A first clamping foot F105 is provided at the top of the positioning head, and a second clamping foot F106 is provided on the bottom wall of the material hole of the fixture on the second rotating workbench. The second clamping foot can be clamped into the card slot of the grid sleeve.

[0130] The rotating mechanism is used to rotate a grid sleeve with a short copper sleeve sleeved on it by a certain angle, such as making the grid groove at the end of the grid sleeve face upward, ensuring that after the grid sleeve is turned around, the grid groove at the end of the grid sleeve can be accurately clamped into the second clamping foot on the bottom wall of the material hole of the fixture on the second rotating workbench, thereby positioning the semi-finished grid sleeve on the fixture on the second rotating workbench and making preparations for the subsequent torsion spring work in advance.

[0131] Specifically, the transfer mechanism includes a support plate G101 fixed to the workbench, a second lead screw transmission mechanism G102 fixed to the support plate, and a cylinder finger G103 connected to the second transmission block of the second lead screw transmission mechanism.

[0132] The transfer mechanism is used to transfer the semi-finished product on the first rotating workbench to the fixture on the second rotating workbench for subsequent assembly.

[0133] Specifically, the short copper sleeve torsion spring mechanism includes a mounting plate I101 fixed on the workbench, a third feed rail I102 for sliding the short copper sleeve, a fourth short copper sleeve moving assembly I103, a sixth ejection mechanism I104, a seventh ejection mechanism I105, a third rotating detection platform I106, a fifth short copper sleeve moving assembly I107, a third conveyor belt I108, a sixth short copper sleeve moving assembly I109, a second ejection mechanism I110, a second stabilizing mechanism I111, a second stabilizing mechanism I112, a third power mechanism I113 for driving the third rotating detection platform to rotate, and a limiting mechanism I114;

[0134] The second top sleeve mechanism includes a second private service motor I115 fixed on the mounting plate, a "冂" type push rod I116 connected to the second private service motor, a push-in fastener I117 connected to the "冂" type push rod, a second slide plate I118 arranged on the mounting plate through a slide rail slider assembly, a second push cylinder I119 fixed on the mounting plate and connected to the second slide plate, a second rotary motor I120 fixed on the second slide plate, a second connecting block I121 arranged on the second slide plate, and a second pick-up rod I122 connected to the output end of the second rotary motor, the second pick-up rod passes through the second connecting block and is connected to the second rotary motor, a second elastic steel ball I123 is arranged in the second pick-up rod, and a third snap-in foot I124 is arranged on the top of the second pick-up rod and snaps into the slot of the grid sleeve;

[0135] The limiting mechanism includes a limiting cylinder I125 and a limiting plate I126. The limiting cylinder is fixed at the bottom of the mounting plate. The limiting plate passes through the mounting plate and is connected to the limiting cylinder. When the limiting plate is extended, it abuts against the step I127 on the slide.

[0136] The working principle of the short copper sleeve set torsion spring mechanism is basically the same as that of the above short copper sleeve set mechanism, and the difference lies in the first top sleeve mechanism and the second top sleeve mechanism, in which a second rotating motor is added to the second top sleeve mechanism to torsion spring the grid sleeve. Its working mechanism is as follows: under the action of the second private service motor, the second pick-up rod moves right to remove the short copper sleeve, and then the second pick-up rod moves left to return the sixth copper sleeve moving assembly, and then the second push cylinder is used to push the second pick-up rod so that the third clip-in foot at the top of the second pick-up rod is clipped into the grid groove of the grid sleeve and then the second pick-up rod is rotated, so that the grid sleeve is torsion spring operated. After completion, the second private service motor drives the top insertion to move right quickly to insert the short sleeve into the grid sleeve to complete the assembly of the terminal. The present invention combines the short copper sleeve set and the torsion spring together, which greatly improves the working efficiency and helps to reduce the size of the equipment.

[0137] Specifically, it further includes a deburring mechanism K100, and the deburring mechanism includes a deburring cylinder K101 and a deburring rod K102; the deburring mechanism is used to remove the burrs on the inner wall of the grid sleeve and smooth the inner wall of the grid sleeve so that the insertion and extraction force of the terminal meets the requirements.

[0138] The detection mechanism at least includes an insertion force detection J101 and an extraction force detection J102. The insertion force detection and the extraction force detection are used to detect the insertion and extraction force of the terminal.

[0139] Specifically, the first ejection mechanism, the second ejection mechanism, the third ejection mechanism, the fourth ejection mechanism, the fifth ejection mechanism, the sixth ejection mechanism, and the seventh ejection mechanism all include an ejection cylinder L101 and an ejection rod L102 connected to the output end of the cylinder;

[0140] The first long copper sleeve moving assembly, the second long copper sleeve moving assembly, the first short copper sleeve moving assembly, the second short copper sleeve moving assembly, the third short copper sleeve moving assembly, the fourth short copper sleeve moving assembly, the fifth short copper sleeve moving assembly, and the sixth short copper sleeve moving assembly all include a short copper sleeve cylinder M101 and a short copper sleeve moving finger M102 connected to the output end of the short copper sleeve cylinder. A short copper sleeve shaft hole M103 for placing the short copper sleeve is provided on the short copper sleeve moving finger.

[0141] All technicians should note that although the present invention has been described according to the above specific embodiments, the inventive concept of the present invention is not limited to this invention only. Any modification using the inventive concept of the present invention will be included in the protection scope of the patent right of this patent.

Claims

1. An automatic assembling machine for charging gun terminals of new energy vehicles, characterized in that Comprising: A workbench, on which a first rotating work disk and a second rotating work disk are provided, and tooling fixtures are fixed on the first rotating work disk and the second rotating work disk; A long copper sleeve feeding mechanism for feeding long copper sleeves into the tooling fixtures on the first rotating work disk; A grid forming and sleeving mechanism for forming a grid into a cylindrical grid sleeve and sleeving it into the long sleeve; A first expanding structure for expanding one end of the grid sleeve into a sector shape; A short copper sleeve sleeving mechanism for sleeving short copper sleeves onto one end of the grid sleeve expanded into a sector shape; A rotating mechanism for rotating the grid sleeve with the short copper sleeve sleeved thereon to a specific position; A transfer mechanism for moving the grid sleeve with the short copper sleeve sleeved thereon into the tooling fixture on the second rotating work disk; A second expanding structure for expanding the other end of the grid sleeve into a sector shape; A short copper sleeve sleeving torsion spring mechanism for sleeving short copper sleeves onto one end of the grid sleeve expanded into a sector shape and driving one end of the grid sleeve to rotate, so that the grid sleeve forms a twist structure; A detection mechanism for detecting whether the assembled terminals are qualified; The long copper sleeve feeding mechanism, the grid forming and sleeving mechanism, the first expanding structure, the copper sleeve sleeving mechanism and the rotating mechanism are sequentially arranged around the workbench on the outer periphery of the first rotating work disk, the transfer mechanism is arranged between the first rotating work disk and the second rotating work disk, and the second expanding structure, the short copper sleeve sleeving torsion spring mechanism and the detection mechanism are sequentially arranged around the workbench on the outer periphery of the second rotating work disk; The long copper sleeve feeding mechanism includes a first feeding rail for the long copper sleeve to slide down, a first long copper sleeve moving component, a first ejecting mechanism, a first rotating detection table, a second long copper sleeve moving component, a second ejecting mechanism, a first conveyor belt, a third long copper sleeve moving component, a third ejecting mechanism, a first inner and outer diameter detection mechanism and a first power mechanism for driving the first rotating detection table to rotate; The grid forming and sleeving mechanism includes a grid mesh feeding rail, a cutting table, a pushing component for pushing the grid mesh forward, a cutting mechanism for cutting the grid mesh, a forming mechanism for forming the cut grid mesh into a grid sleeve, a mesh feeding mechanism for feeding the cut grid mesh into the forming mechanism, a moving and ejecting mechanism for moving and ejecting the formed grid sleeve into the long copper sleeve in the tooling fixture, and a shrinking mechanism; The pushing component is arranged at the front section of the grid mesh feeding rail, and the pushing component includes a slide rail and slider component, a first pushing cylinder connected to the slider of the slide rail and slider component, a pressing cylinder fixed on the slider, and a grid finger connected to the pressing cylinder; The cutting mechanism is arranged above the cutting table, and the cutting mechanism includes a gantry, a connecting rod rotatably connected to the gantry, a tool holder fixed at the front end of the connecting rod, a grid cutter arranged on the tool holder, and a cutting cylinder connected to the rear end of the connecting rod; The net feeding mechanism includes a net feeding cylinder, a grid net finger, a mesh net cylinder, a transverse cylinder, a net feeding bracket and a longitudinal cylinder, the net feeding cylinder is connected to the cutting table, the net feeding bracket is arranged on the workbench through a slide rail slider assembly, the net feeding bracket is provided with a first slide plate through the slide rail slider assembly, the mesh net cylinder is fixed on the first slide plate, the grid net finger is connected to the output end of the mesh net cylinder, the transverse cylinder is fixed on the net feeding bracket and the output end of the transverse cylinder is connected to the first slide plate, and the output end of the longitudinal cylinder is connected to the net feeding bracket; The forming mechanism includes a "冂"-shaped bracket fixed on the workbench, a downward pressure cylinder arranged on the top of the "冂"-shaped bracket, a left cylinder and a right cylinder arranged on both sides of the "冂"-shaped bracket, an upper mold connected to the output end of the downward pressure cylinder, a left side plate connected to the left cylinder, a right side plate connected to the right cylinder, a forward cylinder fixed on the left side plate, a forming rod connected to the forward cylinder, a lower template arranged at the bottom of the "冂"-shaped bracket, a front auxiliary mold and a rear auxiliary mold arranged on the front and rear sides of the lower template, and a front cylinder and a rear cylinder connected to the front auxiliary mold and the rear auxiliary mold, the lower mold is provided with a semicircular forming groove, and the front auxiliary mold and the rear auxiliary mold are provided with a 1 / 4 circle forming groove; The movable ejection mechanism comprises a first base fixed on the workbench, a receiving die slidably connected to the first base through a slide rail and slider assembly, a receiving cylinder connected to the receiving die, a first screw transmission mechanism arranged on the workbench, and a second ejector connected to a first transmission block of the first screw transmission mechanism, wherein a circular hole for placing the formed grid sleeve is provided on the receiving die; The contraction mechanism comprises a finger cylinder fixed to the first base through a connecting plate and a contraction block connected to the finger of the finger cylinder, and a contraction hole is formed between the contraction blocks; The short copper sleeve set mechanism includes a second feed rail for the short copper sleeve to slide in, a first short copper sleeve moving assembly, a fourth ejection mechanism, a fifth ejection mechanism, a second rotary detection platform, a second inner and outer diameter detection mechanism, a second short copper sleeve moving assembly, a second conveyor belt, a third short copper sleeve moving assembly, a first ejection mechanism, a first stabilizing mechanism, a first stabilizing and dragging mechanism, and a second power mechanism for driving the second rotary detection platform to rotate; The ejection mechanism includes a first private service motor, a first ejection rod and a first pickup rod, wherein the first ejection rod is connected to the output end of the first private service motor, the first pickup rod extends into the telescopic hole of the first ejection rod, a first elastic member is connected between the bottom of the telescopic hole and the pickup rod, and the pickup rod is provided with a first elastic steel ball; The first stabilizing mechanism includes a first "L"-shaped bracket fixed on the workbench, a first stabilizing cylinder fixed on the first "L"-shaped bracket, a first connecting block connected to the first stabilizing cylinder, a first upper guide plate arranged on the left side of the first connecting block, and a first stabilizing block arranged on the right side of the first connecting block, wherein the left side of the first stabilizing block is attached to the right side of the fixture of the first rotating work disk; The first stabilizing and dragging mechanism comprises a first stabilizing and dragging cylinder fixed on the workbench and a first lower guide plate connected to the output end of the first stabilizing and dragging cylinder, and the first upper guide plate and the first lower guide plate are both provided with a first circular clamping groove matching the short copper sleeve; The short copper sleeve torsion spring mechanism includes a mounting plate fixed on the workbench, a third feed rail for the short copper sleeve to slide in, a fourth short copper sleeve moving assembly, a sixth ejection mechanism, a seventh ejection mechanism, a third rotating inspection platform, a fifth short copper sleeve moving assembly, a third conveyor belt, a sixth short copper sleeve moving assembly, a second ejection mechanism, a second stabilizing mechanism, a second stabilizing and dragging mechanism, a third power mechanism for driving the third rotating inspection platform to rotate, and a limiting mechanism; The second top sleeve mechanism includes a second private service motor fixed on the mounting plate, a "冂"-shaped push rod connected to the second private service motor, a top insertion block connected to the "冂"-shaped push rod, a second slide plate arranged on the mounting plate through a slide rail slider assembly, a second push cylinder fixed on the mounting plate and connected to the second slide plate, a second rotating motor fixed on the second slide plate, a second connecting block arranged on the second slide plate, a second pickup rod connected to the output end of the second rotating motor, the second pickup rod passes through the second connecting block and is connected to the second rotating motor, a second elastic steel ball is arranged in the second pickup rod, and a third clip-in foot is arranged on the top of the second pickup rod to be clipped into the clip groove of the grid sleeve; The limiting mechanism includes a limiting cylinder and a limiting plate, wherein the limiting cylinder is fixed to the bottom of the mounting plate, the limiting plate passes through the mounting plate and is connected to the limiting cylinder, and when the limiting plate is extended, it abuts against the step on the slide plate; The first ejection mechanism, the second ejection mechanism, the third ejection mechanism, the fourth ejection mechanism, the fifth ejection mechanism, the sixth ejection mechanism and the seventh ejection mechanism all include an ejection cylinder and an ejection rod connected to the output end of the cylinder; The first long copper sleeve moving assembly, the second long copper sleeve moving assembly, the first short copper sleeve moving assembly, the second short copper sleeve moving assembly, the third short copper sleeve moving assembly, the fourth short copper sleeve moving assembly, the fifth short copper sleeve moving assembly and the sixth short copper sleeve moving assembly all include a short copper sleeve cylinder and a short copper sleeve moving finger connected to the output end of the short copper sleeve cylinder, and the short copper sleeve moving finger is provided with a short copper sleeve shaft hole for placing the short copper sleeve.

2. The automatic assembly machine for new energy vehicle charging gun terminals according to claim 1, wherein: The first expansion structure and the second expansion structure both include an expansion cylinder and an expansion rod connected to the expansion cylinder.

3. The automatic assembling machine for the charging gun terminals of new energy vehicles according to claim 1, wherein: The rotating mechanism includes a second base fixed on the workbench, a forward thrust cylinder fixed on the second base, a first rotating motor connected to the forward thrust cylinder, and a positioning head connected to the output end of the first rotating motor. The first rotating motor is slidably connected to the second base through a slide rail slider assembly. A first snap-in foot is provided on the top of the positioning head. A second snap-in foot is provided on the bottom wall of the material hole of the tooling fixture on the second rotating work disk. The second snap-in foot can be snapped into the slot of the grid sleeve.

4. The automatic assembly machine for new energy vehicle charging gun terminals according to claim 1, wherein: The transfer mechanism comprises a support plate fixed on the workbench, a second screw transmission mechanism fixed on the support plate, and a cylinder finger connected to a second transmission block of the second screw transmission mechanism.

5. The automatic assembly machine for new energy vehicle charging gun terminals according to claim 1, characterized in that: It further includes a deburring mechanism, and the deburring mechanism includes a deburring cylinder and a deburring rod; The detection mechanism at least includes insertion force detection and extraction force detection.

Images