An automatic welding and forming device and an automatic welding and forming method for a fuse end cap

Abstract

The present invention discloses an automatic welding and forming device and an automatic welding and forming method for a fuse end cap. The device includes: a frame, and a station operation mechanism transfers a receiving seat for installing a cap body and a contact blade and docks it corresponding to the positions of the above components; a feeding component is used to respectively place the cap body and the contact blade on the receiving seat; a solder paste spraying component includes a containing body and a pressure member. The pressure member conducts the containing body storing the solder paste, extrudes the solder paste out of the containing body to the cap body through a set pressure, and detects the position defined by the solder paste through a detection component; a water-cooled welding component includes a liquid supply unit and a welding head. The liquid supply unit surrounds the peripheries of two electrodes arranged perpendicular to each other on the welding head, and the cap body and the contact blade welded together are sorted from a blanking component after being inspected by the detection component. The automatic welding and forming device and the automatic welding and forming method of the present invention solve the problems of low production efficiency and inconsistent welding quality in the existing welding methods.

Description

Technical Field

[0001] The present invention relates to the field of automated equipment, and particularly relates to an automatic welding and forming device and an automatic welding and forming method for a fuse end cap. Background Art

[0002] Currently, electric vehicles have been continuously popularized and applied, and the fuse inside is one of the core components for the safety of electric vehicles. At least dozens of fuses need to be installed in an electric vehicle, and the demand is large. Currently, most of the existing fuse installations are achieved through a snap-fit structure. Although this method can achieve assembly, there are also situations such as easy loosening (loosening when the vehicle body jolts) and poor contact, resulting in poor fusing effect or insensitivity, directly affecting driving safety. Based on this, subsequently, the snap-fit clamping method in the fuse structure is changed to tightly sleeve and fix end caps at both ends of the ceramic melt, and the contact blade for conducting electricity and connecting is detachably fixedly connected to the cap body for sleeving the ceramic melt, thereby improving the existing situations of loosening and poor contact of the snap-fit type. The cap body of the end cap and the contact blade are connected and formed by welding to ensure its stability.

[0003] The existing end caps are produced and processed through the following processing methods, specifically as follows: (1) The cap body and the contact blade are welded together by soldering. Although this method has advantages such as simple process, easy forming, high welding efficiency, and low equipment cost, there is also a serious defect, that is, it is difficult or impossible to pass the high and low temperature tests, that is, it is difficult to withstand high-frequency thermal shock for more than 6 months under extreme temperatures (-40°C and 160°C, low and high temperatures), and only falls off or breaks after 2 months under extreme conditions. In addition, the high-temperature resistance is poor (i.e., at a high temperature of 250°C), and the contact blade and the cap body are peeled off or fall off. (2) The laser welding method is used for preparation. This welding method is firm and reliable, but the production process is difficult. Since the contact surface between the cap body and the contact blade is an arc surface, it is not easy to clamp, and the laser beam path is interfered due to the shape of the cap body, making it difficult to weld. In addition, the laser welding method usually welds from thin to thick, and the cap body of this product is circular, and the laser beam cannot penetrate due to interference, resulting in a large increase in the difficulty of clamping and welding, and it is difficult to achieve welding. Even if welding can be achieved, the efficiency is low and the cost is very high. (3) By resistance welding, manual welding is used, with low efficiency and inconsistent welding quality. Since the outer periphery of the cap body is an arc surface, the contact blade is prone to deflection when abutting, and the solder paste is also prone to dislocation, resulting in various defective products after welding. Finally, when applied to electric vehicles, it is easy to malfunction, seriously affecting traffic safety. In addition, this method is also prone to annealing of the cap body and the contact blade, easy to deform, difficult to sleeve the ceramic melt, and affect the conductive effect. Moreover, the above welding methods have high costs and low efficiency, and cannot meet the production requirements.

[0004] In summary, the existing end cap welding forming method needs to be further improved and enhanced. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology, and to provide an automatic welding forming device and an automatic welding forming method for a fuse end cap, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problems of low production efficiency and inconsistent welding quality of existing welding methods.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An automatic welding and forming device for a fuse end cap, the device comprising:

[0008] The frame is provided with a station operation mechanism, a loading assembly, a solder paste spraying assembly, a detection assembly, a water-cooled welding assembly and a unloading assembly;

[0009] The station operation mechanism moves the receiving seat for mounting the cap body and the contact knife and stops it at the corresponding position of each component;

[0010] A loading assembly, used to place the cap body and the contact knife on the receiving seat respectively;

[0011] A solder paste spraying assembly, comprising a container and a pressure piece, wherein the pressure piece conducts through the container storing the solder paste, squeezes the solder paste out of the container onto the cap body by setting a pressure, and detects the position defined by the solder paste by a detection assembly;

[0012] A water-cooled welding assembly includes a liquid supply unit and a welding head. The liquid supply unit surrounds the liquid along two mutually perpendicularly arranged electrode walls on the welding head, and allows the cap body and the contact knife welded together to be inspected by a detection assembly and then sorted from a blanking assembly.

[0013] Furthermore, the workstation operation mechanism includes at least two gears, a transmission chain and a first motor, the output shaft of the first motor is connected to the gear in a non-rotatable manner, and drives the gear to rotate; the transmission chain is meshed with the gear in a ring shape, and is fixedly connected to the receiving seat; wherein, the first motor is actuated to drive the gear to rotate, and the transmission chain meshed with it is linked to move in a ring on the frame, and the receiving seat fixed with it is moved, and stopped at the corresponding positions of each component.

[0014] Furthermore, the workstation operation mechanism also includes a first limiting structure, which is used to limit the receiving seat when it is docked at any component position; the first limiting structure includes a movable rod, a clamping block and a limiting groove, and the clamping block is perpendicular to the axial direction of the movable rod and is arranged relative to each component; wherein, the movable rod rotates to drive the clamping block to enter the limiting groove to form a limiting fit when any component is docked.

[0015] Further, the loading component includes a cap loading mechanism and a contact knife loading mechanism; the cap loading mechanism includes a first storage bin, a lifting unit, a conveying pipeline and a material blocking rod, and the storage bin is used for storing caps; the lifting unit includes a second motor, a transmission wheel and a material belt wound around the outer periphery of the transmission wheel, the second motor is in non-rotating cooperation with the transmission wheel and drives the transmission wheel to rotate; a plurality of mounting plates are arranged on the material belt, and the mounting plates are arranged at intervals along a direction perpendicular to the movement direction of the material belt, and form a plurality of parallel material receiving spaces; the conveying pipeline is inclined towards the receiving seat and is used for guiding the cap into the receiving seat; the material blocking rod is inclinedly arranged on the movement track of the material belt, and the cap lifted from the storage bin is blocked by the material blocking rod and moves towards the inlet of the conveying pipeline.

[0016] Further, the material receiving space between two adjacent mounting plates is larger than the outer diameter of the cap and smaller than the sum of the outer diameter of the cap and half of the thickness of the mounting plate.

[0017] Further, the contact knife loading mechanism includes a second storage bin, a transfer assembly and a grasping assembly; the second storage bin is used for placing contact knives and is connected to the transfer assembly; the transfer assembly includes a transmission channel, a first station and a second station; the transmission channel guides the contact knives in the second storage bin to the first and second stations; the grasping assembly is used for grasping the contact knives to the receiving seat and covering them on the caps with solder paste; the grasping assembly includes clamping jaws, a guiding part and an operating assembly, and the clamping jaws are respectively driven by the operating assembly to clamp the contact knives at the first and second stations and move them to the receiving seat; wherein, when the clamping jaws clamp the side part of the contact knife, the guiding part abuts against the arc surface on the contact knife, so that the arc surface of the contact knife is adapted to the outer peripheral wall of the cap.

[0018] Further, the solder paste spraying component further includes a spraying needle and a pressing elastic part, the spraying needle is fixedly connected and communicated with the accommodating body to squeeze the solder paste onto the outer peripheral wall of the cap; the pressing elastic part is arranged on the outer periphery of the spraying needle and has a length greater than that of the spraying needle; wherein, the solder paste spraying component moves towards the cap, and the pressing elastic part first abuts against the outer periphery of the cap, and then the pressure part presses the solder paste in the accommodating body, so that the solder paste is ejected from the spraying needle onto the cap.

[0019] Further, the detection component is used for solder paste detection, contact knife detection and welding forming detection; the detection component includes an image detection part and a light source, and the image detection part acquires the projection images of the cap, the contact knife and the solder paste and is used for comparing with the shapes and / or scales set manually.

[0020] Further, the water-cooled welding assembly further includes a displacement assembly, a first electrode, and a second electrode; the displacement assembly is used to drive the first electrode to extend into the cap body and contact the inner wall of the cap body near the contact blade; the second electrode is installed on the welding head, and the surface of the second electrode opposite to the contact blade is concave; wherein, the receiving seat is displaced to the position of the water-cooled welding assembly to dock, the displacement assembly drives the first electrode to extend into the cap body, and the welding head drives the second electrode to displace along a direction perpendicular to the movement direction of the first electrode and abut against the contact blade, and the liquid is circulated along the circumferential walls of the first electrode and the second electrode through the liquid supply unit, and the cap body and the contact blade are welded together.

[0021] An automatic welding and forming method for a fuse end cap, the automatic welding and forming method includes the automatic welding equipment described above;

[0022] Step S1: The first motor of the station operation mechanism cooperates with the gear to drive the transmission chain with the receiving seat to run in a circular cycle, so that the receiving seat on it docks sequentially at the positions corresponding to the set components;

[0023] Step S2: The receiving seat correspondingly docks at the position of the cap feeding mechanism, and the cap feeding mechanism lifts the cap body to a certain height and drops it by its own weight, and directly or indirectly transfers it to the receiving seat; wherein, the lifting unit drives the material belt to rise, and the mounting plate on it drives the cap body of the first storage bin to move upward; the baffle rod obliquely straddling the upward movement track of the material belt blocks the cap body from moving upward and towards the inlet of the conveying pipeline, so that the cap body enters the conveying pipeline and is directly or indirectly transferred to the receiving seat through the conveying pipeline;

[0024] Step S3: The receiving seat carrying the cap body is displaced to the position of the solder paste spraying assembly to dock in sequence, the accommodating body approaches the outer peripheral wall of the cap body, and the pressing elastic member first abuts against the cap body, and then gas is injected into the accommodating body through the pressure member, so that a manually set amount of solder paste is titrated onto the cap body through the injection needle;

[0025] Step S4: Run to the position of the detection assembly to dock in sequence to detect the position and amount of the solder paste on the cap body; obtain the projection images of the cap body and the solder paste through the image detection member, and compare them with the manually set solder paste position and the framed solder paste area. If it belongs to the manually set position and the framed solder paste area, then calibrate that the cap body on the receiving seat enters and can execute the next step S5. Otherwise, it is transferred to the position of the next component to dock in sequence and does not execute the work of the corresponding component;

[0026] Step S5: Sequentially run and dock at the position of the tool feeding component. Transfer the tool to the cap through the tool feeding component, cover it on the solder paste, and make the tool and the cap in a properly aligned state. Among them, the tool enters the transfer channel of the transfer component from the second storage bin and moves to the first station and the second station. The gripper grips the side of the tool at the first station and / or the second station, and inserts or abuts against the tool with the guiding part, so that when the tool is placed on the outer peripheral wall of the cap, it fits the outer peripheral wall of the cap.

[0027] Step S6: Sequentially run and dock at the position of the detection component to detect whether the tool and the cap are properly aligned. Obtain the projection images of the cap and the tool through the image detection part, and compare them with the sizes and perpendicularity of the cap and the tool set manually. Among them, use the edge of the cap as the reference line to compare with the reference line in the length direction of the tool to judge the perpendicularity. Use the edge of the cap as the reference line to compare with the edge in the width direction of the tool to check whether the distance between them falls within the range of the manually set size value. If the above sizes and perpendicularity all meet the requirements, transfer to the next step S7. Otherwise, sequentially run and dock at the position of the next component and do not execute the work of the corresponding component.

[0028] Step S7: Sequentially run and dock at the position of the water-cooled welding component. Cooperate the welding head and the liquid supply unit to weld the tool and the cap together. Among them, when the receiving seat runs to the position of the water-cooled welding component, the opening of the cap faces the displacement structure. Drive the first electrode with at least one arc surface into the cap through the displacement structure, and make the arc surface contact the arc surface on the cap close to the tool. The second electrode is driven by the welding head to correspond to the curved surface of the tool, and is energized for welding on the basis of the liquid supply unit spraying liquid on the first electrode and the second electrode.

[0029] Step S8: Sequentially run and dock at the position of the detection component to detect whether the welded tool and cap are qualified products. Obtain the projection images of the cap and the tool through the image detection part, and compare them with the sizes and perpendicularity of the cap and the tool set manually. Among them, use the edge of the cap as the reference line to compare with the reference line in the length direction of the tool to judge the perpendicularity. Use the edge of the cap as the reference line to compare with the edge in the width direction of the tool to check whether the distance between them falls within the range of the manually set size value. If the above sizes and perpendicularity all meet the requirements, transfer to the qualified product area of the blanking component. Otherwise, transfer to the unqualified product area of the blanking component.

[0030] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The present invention provides an automatic welding and forming device and an automatic welding and forming method for a fuse end cap, which have a simple structure, are easy to manufacture, are easy to implement and have a low cost, and solve the problems of low production efficiency and inconsistent welding quality in the existing welding methods; the present invention adopts a resistance welding method and breaks through the traditional manual welding method in which the solder paste cannot be quantitatively and accurately positioned, resulting in defective products easily appearing in the welded products (it should be noted that the amount and set position of the solder paste directly affect the welding quality. If the amount of solder paste is too much and overflows, it is easy to cause too many solder joints in the finished product during welding, affecting the conductive effect, and may affect the fusing effect during use, easily causing potential safety hazards, and also affecting the assembly of the ceramic fuse body; at the same time, it also affects the results of high and low temperature tests; if the amount of solder paste is too little or the position is incorrect, it will affect the strength and stability after welding). In addition, the existing welding method is improved, and a water cooling method is combined with two electrodes arranged perpendicular to each other for welding, which not only improves the welding quality (not prone to annealing and oxidation), but also greatly improves the service life of the electrodes. Compared with the service life of the electrodes in the existing welding method (the electrodes need to be replaced after welding about 200 pieces), the service life of the electrodes in the present invention is up to more than 2000, and the electrodes extending into the cap body can be used on both sides. The service life of one electrode is about more than 20 times that of the electrodes in the existing method, greatly reducing the cost and the risk of inconsistent quality caused by electrode replacement; more importantly, this welding is automated, and while greatly improving the quality, the batch production capacity is increased by an order of magnitude.

[0032] (2) The present invention drives the receiving seat to move to each station and perform corresponding operations at the positions of each component through the station operation mechanism, realizes full-process operation with simple components, realizes automated operation, and greatly improves the production efficiency compared with the existing methods such as manual handling. It is suitable for batch production and can better ensure the quality after processing; in addition, a first limiting structure is added after the operation reaches the position to ensure that it is not easy to swing or displace due to inertia after docking, further improving the processing accuracy.

[0033] (3) The cap feeding mechanism of the present invention drives the materials in the first storage bin to move upward first through the lifting unit and then directly or indirectly enter the receiving seat in the form of self-weight falling through the conveying pipeline. In this way, the caps with good quality can be easily screened through the mounting plate on the material belt and can ensure that the openings of the caps are always facing outward. Because when the caps are placed with the openings facing inward, the closed end is heavier and cannot be placed on the mounting plate and will continue to fall into the first storage bin. Only the caps with the openings facing outward can be lifted, and then through the design of the inclined baffle rod, it is easy to make the caps displace into the entrance of the conveying channel during the rising process. With a very simple structure, the caps are ingeniously sent to the receiving seat. Compared with the existing technologies such as the whole material tray, the cap feeding mechanism of the present invention has strong practicability, higher reliability and lower cost, does not need to worry about problems such as inconsistent cap directions, and can provide convenience for subsequent processing.

[0034] (4) The spacing between two adjacent mounting plates of the present invention is specially designed to be larger than the outer diameter of the cap body and smaller than the sum of the outer diameter of the cap body and half the thickness of the mounting plate, so as to ensure that the cap body can smoothly enter the position between the two mounting plates for hanging, and is not easy to fall off due to the shaking of the entire lifting unit, and can also realize that the product with the cap body opening facing outward can be easily dropped, easily meeting the three requirements at the same time;

[0035] (5) The touch knife feeding mechanism of the present invention includes a second storage bin, a transfer assembly and a gripping assembly, and uses at least two workstation transfer assemblies to meet the work of the gripping assembly to avoid interference, and through the clamping claws and the guiding part, it is ensured that the touch knife is not prone to deflection or reverse when placed on the cap body with the solder paste dripped, providing guarantee for the subsequent processing accuracy;

[0036] (6) The solder paste spraying assembly of the present invention further comprises a shooting needle and a pressing elastic member. The present invention applies a manually set pressure (gas) to the container through the pressure member, so that the solder paste of the container can be quantitatively and accurately set in the required area through the shooting needle, and is not easy to spread quickly (in the prior art, the solder paste spreads quickly due to the arc surface of the cap body, resulting in no solder paste or insufficient solder paste in the required welding area), and the quantitative pressure is used to ensure that the amount of solder paste is not too much or too little, thereby further improving the welding quality; in addition, the present invention also presses the pressing elastic member against the surface of the cap body first, and then performs titration, thereby avoiding the cap body position from slightly deflecting due to excessive pressure during the titration process, which leads to poor product welding quality;

[0037] (7) The present invention also provides components for solder paste detection, touch knife detection and detection after welding finished products. The above detections ensure the quality of subsequent finished products, including the position of solder paste, the amount of solder paste, whether the touch knife is placed squarely on the cap body, the size and verticality of the finished product after welding, etc., which saves the need for subsequent detection and automates the inspection layer by layer to improve the quality of production welding;

[0038] (8) The water-cooled welding of the present invention comprises a displacement assembly, a first electrode, and a second electrode. The first electrode and the second electrode are arranged perpendicular to each other and respectively abut against the cap body and the contact knife. The first electrode is slightly smaller than the opening of the cap body and both the upper and lower surfaces are arc-shaped, so as to adapt to the curvature of the inner wall of the cap body. The upper and lower surfaces are arranged in an arc shape so that they can be rotated 180° for use when one of the surfaces is worn out, and the accuracy is not affected by multiple assembly. The left and right sides are straight surfaces to reduce interference with the cap body. In addition, the contact surface between the second electrode and the contact knife is also arranged in an arc shape so as to achieve a better effect during contact welding.

[0039] (9) The automated welding forming method of the present invention is easy to implement and can ensure the quality of welding and reduce the defective rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a schematic three-dimensional structure diagram of the automatic welding and forming equipment described in the present invention;

[0042] Figure 2 It is a schematic three-dimensional structure diagram of the operating station assembly described in the present invention;

[0043] Figure 3 It is a schematic three-dimensional structure diagram of the cap feeding mechanism described in the present invention;

[0044] Figure 4 It is a schematic three-dimensional structure diagram of the solder paste jetting assembly described in the present invention;

[0045] Figure 5 It is a schematic three-dimensional structure diagram of the detection assembly described in the present invention;

[0046] Figure 6 It is a schematic three-dimensional structure diagram of the touch knife feeding mechanism described in the present invention;

[0047] Figure 7 It is a schematic three-dimensional structure diagram of the water-cooled welding assembly described in the present invention;

[0048] Figure 8 It is a schematic three-dimensional structure diagram of the first electrode described in the present invention;

[0049] Figure 9 It is a schematic diagram of the solder paste titration detection state described in the present invention;

[0050] Figure 10 It is a schematic diagram of the touch knife detection and post-welding forming detection state described in the present invention. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are the preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0052] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are used to distinguish different objects rather than to describe a specific order.

[0053] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.

[0054] In the claims, the description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, being integrally connected, and being fixed by other devices or elements.

[0055] In the claims, the description and the above-mentioned drawings of the present invention, when using terms such as "comprising", "having" and their variants, are intended to mean "including but not limited to".

[0056] See Figure 1-7 , an automatic welding and forming device for a fuse end cap according to the present invention, the device includes:

[0057] A frame 1 (see Figure 1 ), which is provided with a station operation mechanism 2, a feeding assembly 3, a solder paste spraying assembly 4, a detection assembly 5, a water-cooled welding assembly 6 and a blanking assembly 7 in a ring shape; the frame 1 described in the present invention includes a table surface 11, and an installation position 110 for installing the station operation mechanism 2, the feeding assembly 3, the solder paste spraying assembly 4, the detection assembly 5, the water-cooled welding assembly 6 and the blanking assembly 7 is formed on the table surface 11;

[0058] The station operation mechanism 2 (see Figure 2 ), which drives the carrier 20 for mounting the cap body A and the contact blade B to transfer and dock corresponding to the above-mentioned components, and is limited by the first limiting structure 24 to prevent yaw or loosening from easily occurring during the processing of each component after docking, and improve the overall quality;

[0059] The station operation mechanism 2 includes at least two gears 21, a transmission chain 22 and a first motor 23; during assembly, first fix the first motor 23 under the table 11, and the output shaft of the first motor 23 penetrates the table and is non-rotatably connected to the gear 21 to drive the gear 21 to rotate; in this invention, two gears 21 are provided and are respectively installed on the table 11; the transmission chain 22 is annularly engaged with the two gears 21 and is fixedly connected to the receiving seat 20; wherein, when the first motor 23 operates, it drives the gear 21 to rotate, linking the engaged transmission chain 22 to move annularly on the frame 1, and causing the receiving seat 20 fixedly connected thereto to transfer and dock at the positions corresponding to each component.

[0060] The station operation mechanism 2 further includes a first limiting structure 24, which is used for limiting the receiving seat 20 when it docks at any component position;

[0061] The first limiting structure 24 includes a movable rod 241, a clamping block 242 and a limiting groove 243. The clamping block 242 is arranged perpendicular to the axis direction of the movable rod 241 and is arranged opposite to each component; wherein, when the movable rod 241 rotates, it drives the clamping block 242 to enter the limiting groove 243 to form a limiting fit when docking at any component. In this invention, by means of the first limiting structure 24, when the receiving seat 20 is displaced to the positions of each component and stops, its yaw or displacement is further restricted, effectively preventing its position from being changed due to external force, resulting in deviations in the solder paste, welding process, etc., and ultimately leading to unqualified quality of the welded product.

[0062] The feeding component 3 is used for respectively placing the cap body A and the contact knife B on the receiving seat 20; specifically, the feeding component 3 includes a cap body feeding mechanism 31 and a contact knife feeding mechanism 32;

[0063] The cap body feeding mechanism 31 includes a first storage bin 311, a lifting unit 312, a conveying pipeline 313 and a material blocking rod 314;

[0064] The first storage bin 311 is used for storing the cap body A (see Figure 1 、 3 );

[0065] The lifting unit 312 includes a second motor 312A, a transmission wheel 312B, and a material belt 312C wound around the outer periphery of the transmission wheel 312B. Among them, the second motor 312A is installed on the frame 1 and is in non-rotating cooperation with the transmission wheel 312B to drive the transmission wheel 312B to rotate. The material belt 312C is wound around the transmission wheel 312B, and a plurality of mounting plates 312D are provided on the material belt 312C. It should be noted that the mounting plates 312D are arranged at intervals perpendicular to the moving direction of the material belt 312C and form a plurality of parallel receiving spaces C (the receiving space C between two adjacent mounting plates 312D is larger than the outer diameter of the cap body A and smaller than the sum of the outer diameter of the cap body A and half of the thickness of the mounting plate 312D). In addition, there is also a stirring space for stirring the cap body A provided at intervals between the mounting plates 312D.

[0066] The conveying pipeline 313 is inclined towards the receiving seat 20 and is used to directly or indirectly introduce the cap body A into the receiving seat 20.

[0067] The baffle rod 314 is inclinedly arranged on the movement track (as shown by the arrow) of the material belt 312C, and the cap body A lifted from the first storage bin 311 is blocked by the baffle rod 314 and moves towards the inlet of the conveying pipeline 313.

[0068] Among them, when the second motor 312A works, it drives the transmission wheel 312B to rotate, so as to drive the material belt 312C to move upward, and lift the cap body A with the opening facing outward through each receiving space C on the material belt 312C. Under the resistance of the inclined baffle rod 314, it moves upward and towards the inlet direction of the conveying pipeline 313 until it enters the conveying pipeline 313 and falls by its own weight. In order to improve the processing speed of the present invention, a transfer structure E is also provided between the conveying pipeline 313 and the receiving seat 20. The cap body A falling from the conveying pipeline 313 first falls on the transfer structure E and is then stably placed on the receiving seat 20 by means of a robotic arm.

[0069] (See Figure 6) The feeding mechanism of the contact knife 32 includes a second storage bin 321, a transfer assembly 322, and a grasping assembly 323; the second storage bin 321 is used to place the contact knife B and is connected to the transfer assembly 322; the transfer assembly 322 includes a transmission channel 322A, a first station 322B, and a second station 322C; the transmission channel 322A guides the contact knife B in the second storage bin 321 to the first and second stations 322B and 322C; the grasping assembly 323 is used to grasp the contact knife B to the receiving seat 20 and cover it on the cap body A with solder paste; the grasping assembly 323 includes a clamping jaw 323A, a guiding part 323B, and an operating assembly 323C. The clamping jaw 323A is respectively driven by the operating assembly 323C to clamp the contact knife B at the first and second stations 322B and 322C and then move it to the receiving seat 20. Among them, when the guiding part 323B abuts against the arc surface of the contact knife B when the clamping jaw 323A clamps the side of the contact knife B, the arc surface of the contact knife B is adapted to the outer peripheral wall of the cap body A.

[0070] The solder paste spraying assembly 4 (see Figure 4 ), which includes a housing 41, a pressure member 42, a needle 43, and a pressing elastic member 44. The pressure member 42 conducts the housing 41 storing the solder paste, extrudes the solder paste out of the housing 41 onto the cap body A by setting a pressure, and detects the position defined by the solder paste through the detection assembly 5. It should be noted that the pressure member 42 of the present invention includes a pressure gauge 421 and a gas source 422. The pressure for extruding the solder paste is set through the pressure gauge 421 (which can be set according to the size of the product), and the gas source 422 conducts the housing 41 and injects air pressure into it to extrude a limited amount of solder paste into the defined area;

[0071] The needle 43 of the present invention is fixedly connected and conducts the housing 41 to be used for extruding the solder paste onto the outer peripheral wall of the cap body A;

[0072] The pressing elastic member 44 is arranged on the outer periphery of the needle 43 and has a length greater than that of the needle 43. Among them, the solder paste spraying assembly 4 moves towards the cap body A. First, the pressing elastic member 44 abuts against the outer periphery of the cap body A, and then the pressure member 42 applies pressure to the solder paste in the housing 41, so that the solder paste is ejected from the needle 43 onto the defined area of the cap body A.

[0073] (See Figure 5 ) The detection assembly 5 is used for solder paste detection, contact knife detection, and welding formation detection;

[0074] The detection assembly 5 includes an image detection member 51 and a light source 52. The image detection member 51 acquires the projection images of the cap body A, the contact knife B, and the solder paste and is used for comparison with the shapes and / or scales set manually;

[0075] It should be noted that the detection component 5 set in the present invention includes solder paste, contact knives, and quality inspection after the product is finished; among them

[0076] The detection component for detecting solder paste is set at the station between the solder paste jetting component 4 and the contact knife feeding component 32. After the solder paste is jetted onto the outer peripheral wall (arc-shaped outer wall) of the cap body A, the projection of the solder paste and the cap body A is obtained through the image detection member 51, and then compared with the position set manually. The edge of the receiving seat 20 of the present invention is used as the reference line, and a virtual frame H (such as a double-square frame) is offset (see Figure 9 ). If the solder paste is within the range of the virtual frame, it is determined that the solder paste titration is qualified; otherwise, it is determined to be unqualified;

[0077] The detection component for detecting the placement of the contact knife B is set at the station between the contact knife feeding component 32 and the water-cooled welding component 6; after the contact knife B is covered on the cap body A, the projection image of the cap body A and the contact knife B is obtained through the image detection member 51, and then compared with the size set manually. Specifically, the perpendicularity T of two mutually perpendicular sides of the cap body A and the contact knife B is compared (see Figure 10 ). The distance L between two mutually parallel sides of the contact knife B and the cap body A is compared. If both meet the manual setting, it is determined that welding can be carried out; otherwise, it is determined to be unqualified;

[0078] The detection component 5 for detecting whether the product after welding is qualified is set at the station between the water-cooled welding component 6 and the blanking component 7, and the detection conditions or indicators are the same as those for detecting the contact knife B (see Figure 10 ).

[0079] The water-cooled welding component 6 (see Figure 7 ), which includes a liquid supply unit 61, a welding head 62, a displacement component 63, a first electrode 64, and a second electrode 65. The liquid supply unit 61 surrounds the peripheral walls of two mutually perpendicular electrodes 64 and 65 on the welding head 62, and the cap body A and the contact knife B welded together are sorted by the blanking component 7 after being inspected by the detection component 5;

[0080] It should be noted that the welding head 62 of the present invention is installed on the table 11 (this is the prior art); a liquid supply unit 61 is installed on the side of the welding head 62, which includes a liquid storage container, a pipeline, and a power component. The outlet of the pipeline is correspondingly arranged for the first and second electrodes 64 and 65, and the liquid in the liquid storage container is carried to and jetted onto the peripheral walls of the first and second electrodes 64 and 65 through the power component (such as a hydraulic pump);

[0081] The displacement component 63 is used to drive the first electrode 64 to extend into the cap body A and contact the inner wall of the cap body A on the side close to the contact knife B. In the present invention, the displacement component 63 is exemplified by a cylinder driving a slider clamping the first electrode 64 to displace relative to the sliding seat; and the second electrode 65 is installed on the welding head 62, and the surface of the second electrode 65 facing the contact knife B is concave;

[0082] The first electrode 64 of the present invention includes an arc surface 641 and a vertical surface 642 arranged oppositely, with one arc surface 641 close to the solder paste, and the two vertical surfaces 642 are used for making way to facilitate the first electrode 64 to be more easily removed when displacing in the cap body A; the present invention provides two arc surfaces 641, and after one surface is worn, it can be rotated 180° and continue to be used;

[0083] An inner concave surface 651 is formed on the side of the second electrode 65 of the present invention opposite to the arc surface of the contact knife B, so that it fits better with the arc surface of the contact knife B, the contact surface is more uniform during energized welding, and the welding effect is better;

[0084] Among them, the receiving seat 20 is displaced to the position of the water-cooled welding assembly 6 to stop, the displacement component 63 drives the first electrode 64 to extend into the cap body A, and the welding head drives the second electrode 65 to displace along a direction perpendicular to the movement direction of the first electrode 64 and abut against the contact knife B, and the liquid is circulated along the circumferential walls of the first electrode 64 and the second electrode 65 through the liquid supply unit 61, so that the cap body A and the contact knife B are welded together.

[0085] The automatic welding and forming method of a fuse end cap of the present invention includes an automatic welding device;

[0086] The welding process includes the following steps: (see Figure 1-10 )

[0087] Step S1: The first motor 23 of the station operation mechanism 2 cooperates with the gear 21 to drive the transmission chain 22 with the receiving seat 20 to circulate in a ring, so that the receiving seat 20 on it stops at the corresponding positions of the set components in sequence; specifically, the first motor 23 starts to work, drives the gear 21 that is rotationally locked with it to rotate synchronously, and then drives the transmission chain 22 to circulate in a ring under the action of the gear 21, and the receiving seat 20 fixedly matched with the transmission chain 22 also moves in sequence; in addition, the present invention also provides a first limiting structure 24. When each receiving seat 20 moves to the corresponding stations to stop, the movable rod 241 of the first limiting mechanism 24 rotates, and the clamping block 242 on it enters the limiting groove 243 opened on each receiving seat 20. In this way, the limiting cooperation between the clamping block 242 and the limiting groove 243 prevents the situation of inaccurate docking during the movement process, which ultimately affects the welding accuracy;

[0088] Step S2: When the receiving base 20 is correspondingly docked at the position of the cap feeding mechanism 31, the cap A is lifted to a certain height by the cap feeding mechanism 31 and then falls by its own weight, and is directly or indirectly transferred to the receiving base 20. Specifically, the second motor 312A of the lifting unit 312 drives the transmission wheel 312B to rotate, and then drives the movement of the material belt 312C engaged with the transmission wheel 312B (the upward movement is taken as an example in the present invention), and the mounting plate 312D on the material belt 312C drives the cap A in the first storage bin 311 to move upward. It should be noted that in the present invention, the receiving space C between the two mounting plates 312D drives the cap A to move upward. The distance between the two mounting plates 312D (the distance of the receiving space C) in the present invention is greater than the outer diameter of the cap A and less than the sum of the outer diameter of the cap A and half of the thickness of the mounting plate 312D. This setting can ensure that the opening of the cap A faces outward, so that there will be no interference when the first electrode 64 extends into it later;

[0089] The cap A rises on the mounting plate 312D, and then the baffle rod 314 obliquely straddling the upward movement track of the material belt 312C blocks the cap A from moving upward and in the direction of the inlet of the conveying pipeline 313, so that the cap A enters the conveying pipeline 313 and is directly or indirectly transferred to the receiving base 20 via the conveying pipeline 313;

[0090] Step S3: The receiving base 20 carrying the cap A is sequentially displaced to the position of the solder paste jetting assembly 4 and docked, and is also positioned by the first limiting structure 24. The accommodating body 41, the injection needle 43 and the pressing elastic member 44 all approach the outer peripheral wall of the cap A. First, the pressing elastic member 44 abuts on the cap A, and then the artificially set gas injection pressure is applied to the accommodating body 41, so that the artificially set amount of solder paste is titrated onto the outer peripheral wall of the cap A through the injection needle 43;

[0091] Step S4: Sequentially run to the position of the (solder paste) detection assembly 5 and dock, to detect the position and amount of the solder paste on the cap A. The position and amount of the solder paste are limited by a virtual frame. Since the solder paste needs a certain fluidity and will spread after titration, it needs to be limited by a region after spreading. If it spreads too much, there will be too many welding points, and if it spreads insufficiently, the welding position will be insufficient and it is easy to break away under external force. The projection images of the cap A and the solder paste are obtained through the image detection member 51 and compared with the artificially set solder paste position and the framed solder paste region. If it belongs to the artificially set position and the framed solder paste region, it is marked that the cap A on the receiving base 20 can enter the next step S5. Otherwise, it is sequentially transferred to the position of the next assembly and docked without performing the work of the corresponding assembly;

[0092] Step S5: Sequentially move to stop at the position of the tool touching and feeding component 32, and transfer the tool B to the cap A through the tool touching and feeding component 32, covering it on the solder paste and making the tool B and the cap A in a properly aligned state; in the present invention, the tool B is clamped to the arc-shaped outer peripheral wall of the cap A by the clamping jaw 323A cooperating with the carrying structure therein; specifically, the tool B enters the conveying channel of the transfer component 322 from the second storage bin 321 and moves to the first station 322B and the second station 322C, and the clamping jaw 323A clamps the side of the tool B at the first station 322B and the second station 322C respectively, and inserts or abuts against the tool B with the guiding part 323B, so that when the tool B is placed on the outer peripheral wall of the cap A, it is adapted to the outer peripheral wall of the cap A.

[0093] Step S6: (See Figure 9 , 10 ) Sequentially move to stop at the position of the detection component 5 to detect whether the tool B and the cap A are properly aligned; obtain the projection images of the cap A and the tool B through the image detection part, and compare them with the sizes and perpendicularities of the cap A and the tool B set manually; among them, the perpendicularity is judged by comparing the reference line of the edge of the cap A with the reference line in the length direction of the tool B (that is, the perpendicularity T comparison is carried out between two mutually perpendicular sides of the cap A and the tool B); and the distance L between them is compared by comparing the reference line of the edge of the cap A with the reference line of the edge in the width direction of the tool B to determine whether it falls within the range of the manually set size value (that is, the distance value L between two mutually parallel sides of the cap A and the tool B is compared). If the above sizes and perpendicularities all meet the requirements, move to the next step S7; otherwise, sequentially move to stop at the position of the next component and do not execute the work of the corresponding component.

[0094] Step S7: Sequentially move to stop at the position of the water-cooled welding component 6, and cooperate the welding head 62 and the liquid supply unit 61 to weld the tool B and the cap A together.

[0095] Among them, when the receiving seat 20 moves to the position of the water-cooled welding component 6, the opening of the cap A faces the displacement structure, and the first electrode 64 with at least one arc surface 641 is driven by the displacement structure to extend into the cap A, and the arc surface 641 is in contact with the arc surface on the cap A close to the tool B.

[0096] The second electrode 65 is driven by the welding head 62 to correspond to the curved surface of the tool B, and is energized for welding on the basis of the liquid supply unit 61 spraying liquid until the welding is completed.

[0097] Step S8: Sequentially run and dock at the position of the inspection component 5 of the welded finished product to inspect whether the contact blade B and the cap body A after welding are qualified products; obtain the projection images of the cap body A and the contact blade B through the image inspection component, and compare them with the sizes and perpendicularity of the cap body A and the contact blade B set manually; among them, use the edge of the cap body A as the reference line to compare with the reference line in the length direction of the contact blade B to judge the perpendicularity T (see Figure 10 ); use the edge of the cap body A as the reference line to compare with the edge in the width direction of the contact blade B to check whether the distance L between them falls within the range of the manually set size value. If the above sizes and perpendicularity meet the requirements, transfer them to the qualified product area of the blanking component 7, otherwise transfer them to the unqualified product area of the blanking component 7;

[0098] The blanking component 7 of the present invention can screen and place the areas according to the qualified or unqualified products judged by the inspection component 5.

[0099] The present invention provides an automatic welding and forming device and an automatic welding and forming method for a fuse end cap, which have a simple structure, are easy to manufacture, are easy to implement and have a low cost, and solve the problems of low production efficiency and inconsistent welding quality in the existing welding methods; the present invention adopts a resistance welding method and breaks through the traditional manual welding method where it is impossible to quantitatively and accurately position the titrated solder paste, resulting in defective products being easily produced during welding (it should be noted that the amount of solder paste and the set position directly affect the welding quality. If the amount of solder paste is too much and overflows, it is easy to cause too many solder joints in the finished product during welding, affecting the conductive effect, and may affect the fusing effect during use, easily generating potential safety hazards, and also affecting the assembly of the ceramic fuse body; at the same time, it also affects the results of high and low temperature tests; while if the amount of solder paste is too little or the position is incorrect, it will affect the strength and stability after welding); in addition, the existing welding method is improved, and a water-cooling method is combined with two electrodes arranged perpendicular to each other for welding, which not only improves the welding quality (it is not easy to occur annealing and oxidation phenomena), but also greatly improves the service life of the electrodes. Compared with the service life of the electrodes in the existing welding method (the electrodes need to be replaced after welding about 200 pieces), the service life of the electrodes in the present invention is up to more than 2000 pieces, and the electrodes extending into the cap body can be used on both sides, and the service life of one electrode is about more than 20 times that of the electrodes in the existing method, greatly reducing the cost and the risk of inconsistent quality caused by replacing the electrodes; more importantly, this welding is automated, and while greatly improving the quality, the batch production capacity has been increased by an order of magnitude; the present invention drives the receiving seat to move to each station and stop through the station operation mechanism and performs corresponding operations at the positions of each component, and uses simple components to achieve the full-process operation and realize automated operation. Compared with the existing methods such as manual handling, the production efficiency is greatly improved, and it is suitable for batch production and can better ensure the quality after processing; in addition, a first limiting structure is added after the operation is in place to ensure that it is not easy to swing or displace due to inertia after docking, further improving the processing accuracy; the cap body feeding mechanism of the present invention drives the materials in the first storage bin to move upward first through the lifting unit and then directly or indirectly enter the receiving seat by the way of self-weight falling through the conveying pipeline. This method can easily screen out the caps with good quality through the mounting plate on the material belt and can ensure that the opening of the cap is always facing outward. Because when the cap is placed with the opening facing inward, the closed end is heavier and it cannot be placed on the mounting plate and will continue to fall into the first storage bin. Only the caps with the opening facing outward can be lifted up, and then through the inclined baffle rod design, it is easy to make the cap displace into the entrance of the conveying channel during the rising process. The cap body is sent to the receiving seat very simply and ingeniously. Compared with the whole material tray and other solutions in the prior art, the cap body feeding mechanism of the present invention has strong practicability, higher reliability and lower cost, does not need to worry about problems such as inconsistent cap directions, and can provide convenience for subsequent processing;The spacing between two adjacent installations of the present invention is also specially designed, which is larger than the outer diameter of the cap body and smaller than the sum of the outer diameter of the cap body and half the thickness of the installation plate, so as to ensure that the cap body can smoothly enter the position between the two installation plates for hanging, and is not easy to fall off due to the shaking of the entire lifting unit during operation, and can also achieve easy falling of products with the cap body opening facing outward, easily meeting three needs at the same time; the touch knife feeding mechanism of the present invention includes a second storage bin, a transfer component and a grabbing component, and adopts at least two workstation transfer components to meet the work of the grabbing component to avoid interference, and through the clamping claw and the guide part, it is ensured that the touch knife is placed in the titration well The solder paste cap is not prone to deflection or reversal, which provides a guarantee for the subsequent processing accuracy; the solder paste injection assembly of the present invention also includes a shooting needle and a pressing elastic member. The present invention applies a manually set pressure (gas) to the container through the pressure member, so that the solder paste of the container can be quantitatively and accurately set in the required area through the shooting needle, and is not prone to rapid diffusion (in the prior art, the solder paste diffuses rapidly due to the peripheral arc surface of the cap body, resulting in no solder paste or insufficient solder paste in the required welding area), and the quantitative pressure is used to ensure that the amount of solder paste is not too much or too little, thereby further improving the welding quality; in addition, the present invention also uses a pressing elastic member The parts are first pressed against the surface of the cap body, and then titration is performed, so as to avoid the cap body position being slightly deflected due to excessive pressure during the titration process, which may lead to poor product welding quality; the present invention also respectively sets up detection components for solder paste detection, touch knife detection and detection components after welding the finished product, and the quality of the subsequent finished product is guaranteed through the above detection, including the position of the solder paste, the amount of solder paste, whether the touch knife is placed on the cap body square, the size of the finished product after welding, the verticality, etc., which saves the subsequent detection and automatically checks at all levels to improve the quality of production welding; the water-cooled welding of the present invention includes a displacement component, a first electrode, a second electrode, and the said The first electrode and the second electrode are arranged perpendicular to each other and respectively abut the cap body and the contact knife. The first electrode is slightly smaller than the opening of the cap body and both the upper and lower surfaces are arc-shaped, so as to adapt to the arc of the inner wall of the cap body. The upper and lower surfaces are arc-shaped and can be rotated 180° for use when one of the surfaces is worn out, and the accuracy is not affected by multiple assembly. The left and right sides are straight surfaces to reduce interference with the cap body. In addition, the contact surface of the second electrode and the contact knife is also arc-shaped to achieve better contact welding effect. The automatic welding forming method of the present invention is easy to implement and can ensure the quality of welding and reduce the defective rate of products. ;

[0100] The above specification and description of the embodiments are used to explain the protection scope of the present invention, but do not constitute a limitation on the protection scope of the present invention.

Claims

1. An automatic welding and forming device for a fuse end cap, characterized in that: The equipment includes: The frame is provided with a station operation mechanism, a loading assembly, a solder paste spraying assembly, a detection assembly, a water-cooled welding assembly and a unloading assembly; The station operation mechanism is used to transfer the receiving seat for installing the cap body and the contact knife and dock them correspondingly to the above-mentioned component positions; the station operation mechanism also includes a first limiting structure, which is used to limit the receiving seat when it is docked at any component position; the first limiting structure includes a movable rod, a clamping block and a limiting groove, the clamping block is perpendicular to the axis direction of the movable rod and is arranged relative to each component; wherein, the movable rod rotates to drive the clamping block to enter the limiting groove to form a limiting fit when any component is docked; The lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism A solder paste spraying assembly, comprising a container and a pressure piece, wherein the pressure piece conducts through the container storing the solder paste, squeezes the solder paste out of the container onto the cap body by setting a pressure, and detects the position defined by the solder paste by a detection assembly; A water-cooled welding assembly includes a liquid supply unit and a welding head. The liquid supply unit surrounds the liquid along two mutually perpendicularly arranged electrode walls on the welding head, and allows the cap body and the contact knife welded together to be inspected by a detection assembly and then sorted from a blanking assembly.

2. The automatic welding and forming equipment for a fuse end cap according to claim 1, wherein: The workstation operation mechanism includes at least two gears, a transmission chain and a first motor, wherein the output shaft of the first motor is non-rotatably connected to the gear and drives the gear to rotate; the transmission chain is meshed with the gear in a ring shape and is fixedly connected to the receiving seat; wherein, the first motor is actuated to drive the gear to rotate, thereby causing the transmission chain meshed with it to move in a ring shape on the frame, and causing the receiving seat fixedly connected to it to shift and stop at the corresponding positions of each component.

3. The automatic welding and forming equipment for a fuse end cap according to claim 2, characterized in that: The material receiving space between two adjacent mounting plates is larger than the outer diameter of the cap body and smaller than the sum of the outer diameter of the cap body and half the thickness of the mounting plates.

4. The automatic welding and forming equipment for a fuse end cap according to claim 3, characterized in that: The touch knife feeding mechanism includes a second storage bin, a transfer assembly, and a grasping assembly; the second storage bin is used for placing touch knives and is connected to the transfer assembly; the transfer assembly includes a transmission channel, a first station, and a second station; the transmission channel guides the touch knives in the second storage bin to the first and second stations; the grasping assembly is used to grasp the touch knives to the receiving seat and cover them on the cap body with solder paste; the grasping assembly includes clamping jaws, a guiding portion, and an operating assembly, and the clamping jaws are respectively driven by the operating assembly to pick up the touch knives at the first and second stations and place them on the receiving seat; wherein, when the clamping jaws clamp the side portion of the touch knife, the guiding portion abuts against the arc surface on the touch knife, so that the arc surface of the touch knife is adapted to the outer peripheral wall of the cap body.

5. The automatic welding and forming equipment for a fuse end cap according to claim 4, characterized in that: The solder paste jetting assembly further includes a jet needle and a pressing elastic member, the jet needle is fixedly connected to and conducts the accommodating body to squeeze the solder paste onto the outer peripheral wall of the cap body; the pressing elastic member is arranged on the outer periphery of the jet needle and has a length greater than that of the jet needle; wherein, the solder paste jetting assembly moves towards the cap body, and the pressing elastic member first abuts against the outer periphery of the cap body, and then the pressure member presses the solder paste in the accommodating body, so that the solder paste is ejected from the jet needle onto the cap body.

6. The automatic welding and forming equipment for a fuse end cap according to claim 5, characterized in that: The detection assembly is used for solder paste detection, touch knife detection, and welding forming detection; the detection assembly includes an image detection member and a light source, and the image detection member acquires the projection images of the cap body, the touch knife, and the solder paste and is used for comparing with the shapes and / or scales set manually.

7. The automatic welding and forming equipment for a fuse end cap according to claim 6, characterized in that: The water-cooled welding assembly further includes a displacement assembly, a first electrode, and a second electrode; the displacement assembly is used to drive the first electrode to extend into the cap body and contact the inner wall surface of the cap body close to the touch knife; the second electrode is installed on the welding head, and the surface of the second electrode facing the touch knife is concave; wherein, the receiving seat is displaced to the position of the water-cooled welding assembly and stops, the displacement assembly drives the first electrode to extend into the cap body, and the welding head drives the second electrode to displace along a direction perpendicular to the movement direction of the first electrode and abut against the touch knife. The liquid is circulated along the peripheral walls of the first electrode and the second electrode through the liquid supply unit, and the cap body and the touch knife are welded together.

8. An automatic welding and forming method for a fuse end cap, characterized in that: This automatic welding forming method includes the automatic welding equipment as described in claim 7; Step S1: The first motor of the station operation mechanism cooperates with the gear to drive the transmission chain with the receiving seat to run in a circular cycle, so that the receiving seats on it stop at the corresponding positions of the set components in sequence. Step S2: The receiving seat stops at the position of the cap body feeding mechanism, and the cap body feeding mechanism lifts the cap body to a certain height and then drops it by its own weight, and directly or indirectly transfers it to the receiving seat; wherein, the lifting unit drives the material belt to rise, and the mounting plate on it drives the cap bodies in the first storage bin to move upward; the baffle rod obliquely straddling the upward movement track of the material belt blocks the cap bodies from moving upward and towards the inlet of the conveying pipeline, so that the cap bodies enter the conveying pipeline and are directly or indirectly transferred to the receiving seat through the conveying pipeline. Step S3: The receiving seat carrying the cap body is sequentially moved to the position of the solder paste injection assembly and stopped, the container body is close to the outer peripheral wall of the cap body, and the pressing elastic member is first pressed against the cap body, and then the gas is injected into the container body through the pressure member, so that the artificially set amount of solder paste is dripped on the cap body through the injection needle; Step S4: sequentially operate to the position of the detection component and stop to detect the position and amount of solder paste on the cap body; obtain the projection image of the cap body and solder paste through the image detection part, and compare it with the manually set solder paste position and the framed solder paste area. If it belongs to the manually set position and the framed solder paste area, then mark the cap body on the receiving seat to enter the next step S5, otherwise it will flow to the next component position and stop in sequence without performing the work of the corresponding component; Step S5: sequentially operate to the position of the touch knife feeding assembly and stop, and transfer the touch knife to the cap body through the touch knife feeding assembly, and cover it on the solder paste so that the touch knife and the cap body are in a straightened state; wherein, the touch knife enters the conveying channel of the transfer assembly from the second storage bin, and moves to the first station and the second station, and the clamping claw clamps the side of the touch knife at the first station and / or the second station, and inserts or pushes against the touch knife with the guiding part, so that the touch knife is matched with the outer peripheral wall of the cap body when placed on the outer peripheral wall of the cap body; Step S6: sequentially operate to the position of the detection component to stop to detect whether the touch knife and the cap body are aligned; obtain the projection image of the cap body and the touch knife through the image detection component, and compare it with the size and verticality of the cap body and the touch knife set manually; wherein, the edge of the cap body is used as a reference line to compare with the reference line in the length direction of the touch knife to determine the verticality; the edge of the cap body is used as a reference line to compare with the edge of the touch knife in the width direction to determine whether the distance between the two falls within the range of the manually set size value. If the above size and verticality are all in accordance, transfer to the next step S7, otherwise it flows to the next component position to stop in sequence and does not perform the work of the corresponding component; Step S7: sequentially operate to the position of the water-cooled welding assembly and stop, and weld the contact knife and the cap body together through the cooperation of the welding machine head and the liquid supply unit; wherein, when the receiving seat operates to the position of the water-cooled welding assembly, the opening of the cap body faces the displacement assembly, and the first electrode with at least one arc surface is driven by the displacement assembly to extend into the cap body, and the arc surface is brought into contact with the arc surface of the cap body close to the contact knife; the second electrode is driven by the welding machine head to correspond to the curved surface of the contact knife, and the liquid supply unit sprays liquid on the first electrode and the second electrode, and then conducts welding; Step S8: Sequentially operate to dock at the position of the detection component to detect whether the contact blade and the cap body after welding are qualified products; obtain the projection images of the cap body and the contact blade through the image detection piece, and compare them with the sizes and perpendicularity of the cap body and the contact blade set manually; among them, use the edge of the cap body as the reference line to compare with the reference line in the length direction of the contact blade to judge the perpendicularity; use the edge of the cap body as the reference line to compare with the edge in the width direction of the contact blade to check whether the distance between the two falls within the range of the manually set size value. If the above sizes and perpendicularity meet the requirements, transfer them to the qualified product area of the blanking component, otherwise transfer them to the unqualified product area of the blanking component.

Images