Wiring harness assembly plastic mold welding device and method

Abstract

The invention discloses a wire harness assembly plastic mold welding device and method, and belongs to the technical field of plastic mold machining. The wire harness assembly plastic mold welding device comprises a supporting mechanism, a longitudinal groove is formed in the top end of the supporting mechanism, and a movable portal frame is installed in the longitudinal groove. The movable portal frame can drive the welding head assembly to integrally move to adjust the transverse position, the height push rod can accurately adjust the height of the welding head assembly, the air supply connecting pipe stably supplies air to the welding head assembly, and the movable portal frame, the height push rod and the air supply connecting pipe are matched so that the welding head assembly can be rapidly matched with welding seams at different positions and different heights. The adaptability of the device to different welding requirements is improved, meanwhile, errors caused when the position of the welding head is manually adjusted are avoided, the welding precision is further guaranteed, and the technical problems that an existing device is poor in adaptability to different welding seams and low in adjusting precision are solved.

Description

Technical Field

[0001] This invention relates to the field of plastic mold processing technology, and in particular to a welding device and method for assembling wire harness plastic molds. Background Technology

[0002] In the fields of automobiles, electronic equipment, and industrial control, wire harnesses are core components for signal and power transmission. The welding quality of the plastic mold during the assembly process directly determines the stability, water resistance, and service life of the wire harness. Welding equipment is required to process the plastic mold during the preparation process.

[0003] For example, a plastic mold grinding and welding device with publication number "CN116442054A" includes a frame, a fixing mechanism, and an angle adjustment mechanism. The frame has a working groove in the middle for grinding and welding plastic molds. The fixing mechanism is mounted on the frame, and the angle adjustment mechanism controls the angle adjustment of the fixing mechanism. The angle adjustment mechanism is also mounted on the frame, and both the frame and the fixing mechanism are mounted on the frame. This invention can clamp molds of different sizes using clamping rods, thus improving the applicability of the device. Furthermore, this invention can process two clamped molds simultaneously, greatly improving the efficiency of mold processing. It also allows for multi-angle adjustment of the molds, ensuring that hard-to-grind corners on the mold can be ground during grinding.

[0004] In existing welding equipment, the plastic strips used for welding are usually attached to the weld seam of the mold manually, and the welding operation is carried out by melting with hot air. However, this manual feeding method is not only less precise, but also cannot scrape and clean the weld head interface during the welding process. It is easy for the plastic and the plastic from the molten welding rod to stick together, which can cause poor airflow from the weld head and affect the normal welding effect. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a welding device and method for assembling plastic molds for wire harnesses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A welding device and method for assembling a plastic mold for wire harnesses includes a support mechanism, wherein a longitudinal groove is provided at the top of the support mechanism, and a movable gantry frame is installed inside the longitudinal groove.

[0008] The bottom end of the mobile gantry is fixedly connected to a height push rod. A base plate assembly is fixedly connected to the bottom end of the height push rod. A welding head assembly is fixedly connected to the bottom end of the base plate assembly. An air supply pipe for supplying air to the welding head assembly is fixedly connected to the top end of the base plate assembly. A support mechanism is fixedly connected to the rear side of the base plate assembly. There are two support mechanisms, which are fixedly connected to the left and right sides of the rear end of the base plate assembly in opposite directions. Side plate assemblies are fixedly connected to the top of each support mechanism. A winding roller is rotatably connected to the inner side of each side plate assembly. A solder assembly is wound around the outer side of the winding roller. A guide bracket is fixedly connected to the bottom end of the base plate assembly. The guide bracket has an L-shaped structure and a notch inside. A guide roller is installed inside the notch to guide and transport the solder assembly. The outer side of the support mechanism is fixedly connected to... The assembly includes a sleeve assembly, which is a hollow tubular structure. A guide rod assembly is inserted inside the sleeve assembly. The main body of the guide rod assembly is cylindrical, and a notch is provided at the top of the guide rod assembly, through which it is hinged to the connecting rod assembly. A piston plate is fixedly connected to the bottom end of the guide rod assembly and is inserted into the sleeve assembly. An air inlet pipe is fixedly connected to the outer circumference of the sleeve assembly and communicates with the sleeve assembly. An air outlet pipe is fixedly connected to the bottom end of the air inlet pipe. One-way valves are installed on the outer sides of both the air outlet pipe and the air inlet pipe. An air distribution pipe is fixedly connected to the bottom end of the air outlet pipe. The air distribution pipe has a U-shaped structure and two outlets at its front end. Air blowing components are fixedly connected inside both outlets. The air blowing components are inclined and fixedly connected to the bottom end of the base plate assembly, facing the welding head assembly.

[0009] Preferably, a leg assembly is fixedly connected to the bottom surface of the support mechanism. There are two leg assemblies, and the two leg assemblies are fixedly connected to the left and right sides of the bottom surface of the support mechanism, respectively. A clamping push rod is fixedly connected inside the support mechanism. There are two clamping push rods.

[0010] Preferably, the two clamping push rods are fixedly connected to the left and right sides inside the support mechanism in opposite directions, and the inner sides of the two clamping push rods are also fixedly connected to the seam clamping plates, which are used to clamp the plastic mold. The longitudinal groove in the support mechanism is fixedly connected to the servo push rod.

[0011] Preferably, there are two servo push rods, and the two servo push rods are fixedly connected to the left and right sides inside the support mechanism in opposite directions. The rear sides of the two servo push rods are connected to the movable gantry. The left and right sides of the outer peripheral surface of the base plate assembly are fixedly connected to guide brackets in opposite directions. The guide brackets move along the longitudinal groove in the movable gantry. The outer side of the side plate assembly is fixedly connected to a support frame, and a servo motor is installed on the top surface of the support frame.

[0012] Preferably, an input bevel gear is mounted on the bottom output shaft of the servo motor, and a transmission gear is coaxially mounted on the outer side of the winding roller. The transmission gear meshes with the input bevel gear for transmission. An output bevel gear is also mounted on the inner side of the support frame. The output bevel gear meshes with the transmission gear. A first pulley A is coaxially mounted on the bottom end of the output bevel gear. A first pulley B is rotatably connected to the bottom end of the guide bracket on the right side. A first belt is mounted on the outer side of the first pulley B and the first pulley A.

[0013] Preferably, a second pulley is coaxially mounted on the bottom end of the first pulley B. There are two second pulleys in total. The other second pulley is mounted on the outside of the guide seat. A second belt is also mounted on the outside of the two second pulleys. A connecting column is fixedly connected to the bottom end surface of the base plate assembly. There are two connecting columns in total.

[0014] Preferably, the two connecting columns are fixedly connected in a straight array to the front and rear sides of the bottom end face of the base plate assembly, and the bottom ends of the two connecting columns are fixedly connected to a support base. The support base is a ring structure, and the top end of the support base is provided with a ring groove. The ring groove is a guide groove, and a guide seat is rotatably connected inside the guide groove. The main body of the guide seat is a ring structure.

[0015] Preferably, a scraper assembly is fixedly connected to the top surface of the guide seat, and the top of the scraper assembly is inclined.

[0016] Preferably, a turntable mechanism is coaxially mounted on the side of the winding roller away from the transmission gear plate, and a rotating shaft assembly is eccentrically fixed to the outer side of the turntable mechanism. A connecting rod assembly is also mounted on the outer side of the rotating shaft assembly.

[0017] The present invention discloses a welding device for assembling plastic molds for wire harnesses. The device is characterized in that a turntable mechanism (7) is coaxially installed on the side of the take-up roller (3011) away from the transmission gear plate (5012). A rotating shaft assembly (701) is eccentrically fixed to the outside of the turntable mechanism (7). A connecting rod assembly (7011) is also installed on the outside of the rotating shaft assembly (701).

[0018] This invention discloses a welding method for a plastic mold used in wire harness assembly, comprising the following steps:

[0019] S1: Place the plastic mold to be welded on top of the support mechanism to ensure that the mold is in the initial state for welding;

[0020] S2: Activate the two clamping push rods inside the support mechanism, push the joint plate inside the clamping push rod to move inward until the joint plate clamps the plastic mold and the mold weld is completed.

[0021] S3: Based on the position of the weld seam in the plastic mold, the lateral position of the moving gantry frame in the longitudinal groove is adjusted by the servo push rod inside the longitudinal groove of the support mechanism, so that the moving gantry frame drives the subsequent welding-related components to move to the area corresponding to the weld seam;

[0022] S4: Activate the height push rod at the bottom of the mobile gantry frame. The height push rod pushes the base plate assembly fixedly connected to its bottom end to move up and down. The base plate assembly drives the welding head assembly at the bottom end to move synchronously until the welding head assembly is adjusted to the welding height that matches the weld seam of the plastic mold. Then close the height push rod to keep the position of the welding head assembly stable.

[0023] S5: Start the servo motor installed at the top of the support frame. The servo motor drives the input bevel gear on its bottom output shaft to rotate. Through the meshing transmission between the input bevel gear and the transmission gear plate coaxially installed on the outside of the take-up roller, the take-up roller is driven to rotate.

[0024] S6: During the rotation of the take-up roller, the solder assembly wound on its outer side is gradually released. The released solder assembly enters the slot inside the L-shaped guide bracket at the bottom of the base plate assembly. It is guided and conveyed by the guide roller in the slot, so that the solder assembly is accurately conveyed to the weld seam below the welding head assembly.

[0025] S7: Connect the external high-pressure air pump to the air supply pipe at the top of the base plate assembly. Supply air to the inside of the welding head assembly through the air supply pipe. After the gas is heated by the heating structure inside the welding head assembly, it acts on the weld seam of the welding material assembly and the plastic mold, causing the welding material assembly to melt and combine with the mold material at the weld seam to perform welding operations.

[0026] S8: During the welding process, as the winding roller rotates, the turntable mechanism, which is coaxially mounted on the side away from the transmission gear plate, rotates accordingly. The eccentrically fixed rotating shaft assembly on the outside of the turntable mechanism drives the connecting rod assembly to move. The connecting rod assembly pulls the guide rod assembly to move up and down inside the sleeve assembly. The piston plate at the bottom of the guide rod assembly reciprocates synchronously inside the sleeve assembly.

[0027] S9: When the piston plate moves upward, external gas enters the sleeve assembly through the air inlet pipe on the outer periphery of the sleeve assembly; when the piston plate moves downward, the gas in the sleeve assembly is transported to the U-shaped gas distribution pipe through the air outlet pipe at the bottom of the air inlet pipe, and then blown towards the welding head assembly through the air blowing components installed at the two outlets at the front end of the gas distribution pipe, cleaning the interface of the welding head assembly. The one-way valves on the outside of the air inlet pipe and the air outlet pipe control the one-way flow of gas.

[0028] S10: When the winding roller rotates, the output bevel gear meshes with the transmission gear disc, driving the first pulley A, which is coaxially mounted on the bottom of the output bevel gear, to rotate. The first pulley A drives the first pulley B to rotate via the first belt. The second pulley, which is coaxially mounted on the bottom of the first pulley B, drives another second pulley mounted on the outside of the guide seat to rotate via the second belt. This, in turn, drives the guide seat to rotate in the guide groove of the support seat. The scraper assembly at the top of the guide seat contacts the air outlet at the bottom of the welding head assembly to remove the residue generated during the welding process. The support seat is fixedly connected to the base plate assembly via the connecting column. The guide brackets on both sides of the outer circumference of the base plate assembly move along the longitudinal groove in the movable gantry to assist in positioning.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. In this invention, precise automatic feeding of solder is achieved through components such as a winding roller, a guide bracket, and guide rollers. The winding roller can stably release the solder assembly, the L-shaped guide bracket provides a fixed path for solder feeding, and the internal guide rollers guide the solder assembly, preventing the solder from deviating during feeding and ensuring that the solder can accurately reach the weld seam below the welding head assembly. This replaces the manual feeding method, effectively solves the technical problem of low precision in manual feeding, ensures the accuracy of the welding position, and improves the stability of welding quality.

[0031] 2. In this invention, an auxiliary air blowing structure is formed by components such as a sleeve assembly, a guide rod assembly, a piston plate, an air distribution pipe, and an air blowing assembly to solve the problem. The guide rod assembly drives the piston plate to reciprocate within the sleeve assembly, allowing gas to enter the air distribution pipe through the air inlet and outlet pipes. Then, the gas is blown onto the welding head assembly by the inclined air blowing assembly, which can promptly remove any molten plastic that may be stuck at the interface of the welding head assembly, prevent obstructed airflow from the welding head, ensure normal airflow from the welding head assembly, solve the technical problem of welding effect being affected by welding head airflow problems, and ensure stable welding operations.

[0032] 3. In this invention, the coordinated operation of welding position adjustment and welding gas supply is achieved through components such as the movable gantry frame, height push rod, and gas supply pipe. The movable gantry frame can drive the welding head assembly to move and adjust its lateral position, the height push rod can accurately adjust the height of the welding head assembly, and the gas supply pipe provides a stable gas supply to the welding head assembly. The cooperation of these three components enables the welding head assembly to quickly adapt to welds at different positions and heights, improving the adaptability of the device to different welding needs. At the same time, it avoids the errors when manually adjusting the welding head position, further ensuring welding accuracy and solving the technical problems of poor adaptability and low adjustment accuracy of existing devices for different welds. Attached Figure Description

[0033] Figure 1This is a front view of the welding device and method for assembling a plastic mold for wire harnesses proposed in this invention.

[0034] Figure 2 This is a rear side view of the welding device and method for assembling a plastic mold for wire harnesses proposed in this invention.

[0035] Figure 3 This is a schematic diagram of the combined structure of the support mechanism and side plate assembly of a wire harness assembly plastic mold welding device and method proposed in this invention.

[0036] Figure 4 This is a schematic diagram of the connecting column and support base combination structure of a wire harness assembly plastic mold welding device and method proposed in this invention.

[0037] Figure 5 This is a top view of the welding device and method for assembling a plastic mold for wire harness, as proposed in this invention.

[0038] Figure 6 This is a schematic diagram of the combined structure of the support mechanism and leg assembly of a wire harness assembly plastic mold welding device and method proposed in this invention.

[0039] Figure 7 This is a schematic diagram of the combined structure of the air distribution pipe and air blowing component of a wire harness assembly plastic mold welding device and method proposed in this invention.

[0040] Figure 8 This invention provides a welding device and method for assembling plastic molds for wire harnesses. Figure 2 Enlarged structural diagram at point A in the middle.

[0041] In the diagram: 1. Support mechanism; 101. Leg assembly; 1011. Clamping push rod; 1012. Seam clamping plate; 2. Servo push rod; 201. Moving gantry; 2011. Height push rod; 2012. Base plate assembly; 2013. Guide bracket; 2014. Welding head assembly; 2015. Air supply pipe; 3. Support mechanism; 301. Side plate assembly; 3011. Rewinding roller; 3012. Welding material assembly; 4. Guide bracket; 401. Guide roller; 5. Support frame; 501. Servo motor; 5011. Input bevel gear; 5012. Transmission gear plate; 5013. Output... 5014. Bevel gear; 5015. First pulley A; 5016. First belt; 5017. Second pulley; 5018. Second belt; 6. Connecting column; 601. Support seat; 6011. Guide groove; 6012. Guide seat; 6013. Scraper assembly; 7. Turntable mechanism; 701. Shaft assembly; 7011. Connecting rod assembly; 7012. Sleeve assembly; 7013. Guide rod assembly; 7014. Piston plate; 7015. Air inlet pipe; 7016. One-way valve; 7017. Air outlet pipe; 7018. Air distribution pipe; 7019. Air blowing assembly. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] Example, refer to Figure 1-8 A welding device and method for assembling a plastic mold for wire harnesses, comprising a support mechanism 1, the top of which is provided with a longitudinal groove, and a movable gantry 201 is installed inside the longitudinal groove.

[0044] A height push rod 2011 is fixedly connected to the bottom end of the mobile gantry 201. A base plate assembly 2012 is fixedly connected to the bottom surface of the height push rod 2011. A welding head assembly 2014 is fixedly connected to the bottom surface of the base plate assembly 2012. An air supply pipe 2015 for supplying air to the inside of the welding head assembly 2014 is fixedly connected to the top surface of the base plate assembly 2012. A support mechanism 3 is fixedly connected to the rear side of the base plate assembly 2012. There are two support mechanisms 3, and the two support mechanisms 3 are fixedly connected to the left and right sides of the rear end of the base plate assembly 2012 in opposite directions. Side plate assemblies 301 are fixedly connected to the top of each support mechanism 3. A winding roller 3011 is rotatably connected to the inner side of each side plate assemblies 301. A solder assembly 3012 is wound around the outer side of the winding roller 3011. A guide bracket 4 is fixedly connected to the bottom end of the base plate assembly 2012. The guide bracket 4 has an L-shaped structure and a notch inside. A guide roller 401 is installed inside the notch to guide and transport the solder assembly 3012. A sleeve assembly 7012 is fixedly connected to the outer side of the support mechanism 3. 12 is a hollow tubular structure, and a guide rod assembly 7013 is inserted inside the sleeve assembly 7012. The main body of the guide rod assembly 7013 is a cylindrical structure, and a notch is opened at the top of the guide rod assembly 7013, through which it is hinged to the connecting rod assembly 7011. A piston plate 7014 is fixedly connected to the bottom end face of the guide rod assembly 7013. The piston plate 7014 is inserted into the sleeve assembly 7012, and an air intake pipe 7015 is fixedly connected to the outer circumferential surface of the sleeve assembly 7012. The air intake pipe 7015 communicates with the sleeve assembly 7012, allowing air to enter. An air outlet pipe 7017 is fixedly connected to the bottom end of the pipe 7015. A one-way valve 7016 is installed on the outside of both the air outlet pipe 7017 and the air inlet pipe 7015. An air distribution pipe 7018 is fixedly connected to the bottom end of the air outlet pipe 7017. The air distribution pipe 7018 has a U-shaped structure and two outlets at its front end. An air blowing assembly 7019 is fixedly connected inside each of the two outlets. The air blowing assembly 7019 is inclined and is fixedly connected to the bottom surface of the base plate assembly 2012, facing the welding head assembly 2014.

[0045] Furthermore, a leg assembly 101 is fixedly connected to the bottom surface of the support mechanism 1. There are two leg assemblies 101, and the two leg assemblies 101 are fixedly connected to the left and right sides of the bottom surface of the support mechanism 1 respectively. A clamping push rod 1011 is fixedly connected inside the support mechanism 1. There are two clamping push rods 1011.

[0046] Furthermore, two clamping push rods 1011 are fixedly connected to the left and right sides inside the support mechanism 1 in opposite directions. The inner sides of the two clamping push rods 1011 are also fixedly connected to a seam clamping plate 1012, which is used to clamp the plastic mold. A servo push rod 2 is fixedly connected inside the longitudinal groove in the support mechanism 1.

[0047] Furthermore, there are two servo push rods 2, and the two servo push rods 2 are fixedly connected to the left and right sides inside the support mechanism 1 in opposite directions. The rear sides of the two servo push rods 2 are connected to the movable gantry frame 201. The left and right sides of the outer peripheral surface of the base plate assembly 2012 are fixedly connected to the guide brackets 2013 in opposite directions. The guide brackets 2013 move along the longitudinal groove in the movable gantry frame 201. The outer side of the side plate assembly 301 is fixedly connected to the support frame 5, and the top surface of the support frame 5 is equipped with a servo motor 501.

[0048] Furthermore, an input bevel gear 5011 is mounted on the bottom output shaft of the servo motor 501, and a transmission gear 5012 is coaxially mounted on the outer side of the take-up roller 3011. The transmission gear 5012 meshes with the input bevel gear 5011 for transmission. An output bevel gear 5013 is also mounted on the inner side of the support frame 5. The output bevel gear 5013 meshes with the transmission gear 5012 for transmission. A first pulley A5014 is coaxially mounted on the bottom end of the output bevel gear 5013. A first pulley B5016 is rotatably connected to the bottom end of the guide bracket 2013 located on the right side. A first belt 5015 is mounted on the outer side of the first pulley B5016 and the first pulley A5014.

[0049] Furthermore, a second pulley 5017 is coaxially mounted on the bottom end of the first pulley B5016. There are two second pulleys 5017 in total. The other second pulley 5017 is mounted on the outside of the guide seat 6012. A second belt 5018 is also mounted on the outside of the two second pulleys 5017. A connecting column 6 is fixedly connected to the bottom end surface of the base plate assembly 2012. There are two connecting columns 6 in total.

[0050] Furthermore, two connecting columns 6 are fixedly connected in a straight line array to the front and rear sides of the bottom end face of the base plate assembly 2012, and a support base 601 is fixedly connected to the bottom end of each of the two connecting columns 6. The support base 601 has a ring structure, and an annular groove is opened at the top of the support base 601. This annular groove is a guide groove 6011. A guide seat 6012 is rotatably connected inside the guide groove 6011. The main body of the guide seat 6012 has a ring structure.

[0051] Furthermore, a scraper assembly 6013 is fixedly connected to the top surface of the guide seat 6012, and the top of the scraper assembly 6013 is inclined.

[0052] Furthermore, a turntable mechanism 7 is coaxially mounted on the side of the winding roller 3011 away from the transmission gear plate 5012. A rotating shaft assembly 701 is eccentrically fixed to the outer side of the turntable mechanism 7, and a connecting rod assembly 7011 is also mounted on the outer side of the rotating shaft assembly 701.

[0053] This invention discloses a welding method for a plastic mold used in wire harness assembly, comprising the following steps:

[0054] S1: Place the plastic mold to be welded on top of support mechanism 1 to ensure that the mold is in the initial state to be welded;

[0055] S2: Activate the two clamping push rods 1011 inside the support mechanism 1, push the seam clamping plate 1012 inside the clamping push rod 1011 to move inward until the seam clamping plate 1012 clamps the plastic mold and the mold weld is completed.

[0056] S3: Based on the position of the weld seam in the plastic mold, the servo push rod 2 inside the longitudinal groove of the support mechanism 1 is used to adjust the lateral position of the moving gantry 201 in the longitudinal groove, so that the moving gantry 201 can drive the subsequent welding-related components to move to the area corresponding to the weld seam.

[0057] S4: Activate the height push rod 2011 at the bottom of the mobile gantry frame 201. The height push rod 2011 pushes the base plate assembly 2012 fixedly connected to its bottom end to move up and down. The base plate assembly 2012 drives the welding head assembly 2014 at the bottom end to move synchronously until the welding head assembly 2014 is adjusted to the welding height that matches the weld seam of the plastic mold. Then close the height push rod 2011 to keep the position of the welding head assembly 2014 stable.

[0058] S5: Start the servo motor 501 installed at the top of the support frame 5. The servo motor 501 drives the input bevel gear 5011 on its bottom output shaft to rotate. Through the meshing transmission between the input bevel gear 5011 and the transmission gear disk 5012 coaxially installed on the outer side of the take-up roller 3011, the take-up roller 3011 is driven to rotate.

[0059] S6: During the rotation of the take-up roller 3011, the solder assembly 3012 wound on its outer side is gradually released. The released solder assembly 3012 enters the slot inside the L-shaped guide bracket 4 at the bottom end of the base plate assembly 2012. It is guided and conveyed by the guide roller 401 in the slot, so that the solder assembly 3012 is accurately conveyed to the weld seam below the welding head assembly 2014.

[0060] S7: Connect the external high-pressure air pump to the air supply pipe 2015 at the top of the base plate assembly 2012, and supply air to the inside of the welding head assembly 2014 through the air supply pipe 2015. After the gas is heated by the heating structure inside the welding head assembly 2014, it acts on the weld seam of the solder assembly 3012 and the plastic mold, causing the solder assembly 3012 to melt and combine with the mold material at the weld seam to perform welding operations.

[0061] S8: During the welding process, as the take-up roller 3011 rotates, the turntable mechanism 7, which is coaxially mounted on the side away from the transmission gear plate 5012, also rotates. The rotating shaft assembly 701, which is eccentrically fixed on the outside of the turntable mechanism 7, drives the connecting rod assembly 7011 to move. The connecting rod assembly 7011 pulls the guide rod assembly 7013 to move up and down inside the sleeve assembly 7012. The piston plate 7014 at the bottom of the guide rod assembly 7013 reciprocates synchronously inside the sleeve assembly 7012.

[0062] S9: When the piston plate 7014 moves upward, external gas enters the sleeve assembly 7012 through the air inlet pipe 7015 on the outer periphery of the sleeve assembly 7012; when the piston plate 7014 moves downward, the gas in the sleeve assembly 7012 is transported to the U-shaped gas distribution pipe 7018 through the air outlet pipe 7017 at the bottom of the air inlet pipe 7015, and then blown towards the welding head assembly 2014 through the air blowing components 7019 inclinedly arranged in the two outlets at the front end of the gas distribution pipe 7018, cleaning the interface of the welding head assembly 2014, and the one-way valve 7016 on the outside of the air inlet pipe 7015 and the air outlet pipe 7017 controls the one-way flow of gas.

[0063] S10: When the winding roller 3011 rotates, it drives the first pulley A5014, which is coaxially mounted on the bottom end of the output bevel gear 5013, to rotate through the meshing transmission between the output bevel gear 5013 and the transmission gear disk 5012. The first pulley A5014 drives the first pulley B5016 to rotate through the first belt 5015. The second pulley 5017, which is coaxially mounted on the bottom end of the first pulley B5016, drives another second pulley mounted on the outside of the guide seat 6012 through the second belt 5018. The rotation of wheel 5017 causes the guide seat 6012 to rotate within the guide groove 6011 of the support seat 601. The scraper assembly 6013 at the top of the guide seat 6012 contacts the air outlet at the bottom of the welding head assembly 2014 to remove the residue generated during the welding process. The support seat 601 is fixedly connected to the base plate assembly 2012 via the connecting column 6. The guide brackets 2013 on both sides of the outer circumference of the base plate assembly 2012 move along the longitudinal groove in the movable gantry frame 201 to assist in positioning.

[0064] In use, first, place the plastic mold to be welded on the top of the support mechanism 1, start the relevant control components of the support mechanism 1 to ensure that the mold is in the state to be welded, and then start the two clamping push rods 1011 installed on the top of the support mechanism 1 to push the two seam clamps 1012 inward until the weld seam of the mold placed on the support mechanism 1 is completed. Then, according to the position of the mold weld seam, adjust the position of the moving gantry 201 in the longitudinal groove through the drive structure inside the longitudinal groove of the support mechanism 1, so that the moving gantry 201 drives the subsequent welding-related components to move to the corresponding area of ​​the weld seam, and make preliminary positioning for the welding operation.

[0065] Start the height push rod 2011 at the bottom of the mobile gantry frame 201. The height push rod 2011 pushes the base plate assembly 2012 fixedly connected to its bottom end to move up and down. The base plate assembly 2012 then drives the welding head assembly 2014 at the bottom end to move synchronously until the welding head assembly 2014 is adjusted to a welding height that matches the weld seam of the plastic mold, meeting the requirements of the welding head position for the welding operation. Then, close the height push rod 2011 to keep the position of the welding head assembly 2014 stable.

[0066] The servo motor 501 installed at the top of the support frame 5 is started to drive the input bevel gear 5011 to rotate. The meshing transmission between the input bevel gear 5011 and the transmission gear disk 5012 drives the take-up roller 3011 to rotate. Using the two support mechanisms 3 on the rear side of the base plate assembly 2012, the take-up roller 3011 rotatably connected to the inner side of the side plate assembly 301 at the top of the base plate assembly 2012 starts to move. The solder assembly 3012 wound on the outer side of the take-up roller 3011 is gradually released. The released solder assembly 3012 enters the groove inside the L-shaped guide bracket 4 at the bottom of the base plate assembly 2012. It is guided and transported by the guide roller 401 in the groove, so that the solder assembly 3012 is accurately transported to the weld seam below the welding head assembly 2014, providing sufficient and accurately positioned solder for welding.

[0067] An external high-pressure air pump is connected to the air supply pipe 2015, and air is supplied to the welding head assembly 2014 through the air supply pipe 2015 at the top of the base plate assembly 2012. After being processed by the welding head assembly 2014, the gas forms an airflow that meets the welding requirements. After entering the welding head assembly 2014, the gas is heated by the heating structure inside the welding head assembly 2014 and acts on the weld seam of the solder assembly 3012 and the plastic mold, so that the solder assembly 3012 reaches a molten state and combines with the mold material at the weld seam, thereby realizing the welding operation of the plastic mold.

[0068] During the welding process, the sleeve assembly 7012 fixed on the outside of the support mechanism 3 works in concert. The guide rod assembly 7013 inserted inside the sleeve assembly 7012 moves up and down under the action of the external linkage structure. The piston plate 7014 at the bottom of the guide rod assembly 7013 reciprocates within the sleeve assembly 7012. When the piston plate 7014 moves, external gas enters the sleeve assembly 7012 through the air inlet pipe 7015 on the outer periphery of the sleeve assembly 7012, and is then transported to the U-shaped air distribution pipe 7018 through the air outlet pipe 7017 at the bottom of the air inlet pipe 7015. The air blowing assembly 7 at the two outlets at the front end of the air distribution pipe 7018... 019 directs gas at an angle towards the welding head assembly 2014, cleaning the area around the welding head assembly 2014 and helping to stabilize the welding area environment. Meanwhile, the top of the guide rod assembly 7013 is connected to the connecting rod assembly 7011 with a notched hinge at the top, which adjusts the angle during the movement of the guide rod assembly 7013 to ensure smooth movement of the guide rod assembly 7013 and stable operation of the entire auxiliary air blowing structure. In addition, the one-way valves 7016 on the outside of the air inlet pipe 7015 and the air outlet pipe 7017 effectively control the unidirectional flow of gas, preventing gas backflow from affecting the auxiliary air blowing effect and further ensuring the smooth progress of the welding operation.

[0069] Furthermore, when the winding roller 3011 rotates, the transmission connection between the first pulley A5014 and the first belt 5015, and between the first pulley B5016 and the second pulley 5017, can be used to drive the guide seat 6012, which is rotatably connected in the support 601, to rotate. The contact between the guide seat 6012 and the bottom air outlet of the welding head assembly 2014 can remove the residue present in the hot melting process, ensuring a smooth air outlet path and avoiding affecting normal welding.

[0070] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for assembling wire harnesses using plastic molds, comprising a support mechanism (1), characterized in that, The top of the support mechanism (1) is provided with a longitudinal groove, and a movable gantry frame (201) is installed inside the longitudinal groove; The bottom end of the mobile gantry (201) is fixedly connected to a height push rod (2011). A base plate assembly (2012) is fixedly connected to the bottom end face of the height push rod (2011). A welding head assembly (2014) is fixedly connected to the bottom end face of the base plate assembly (2012). An air supply pipe (2015) for supplying air to the inside of the welding head assembly (2014) is fixedly connected to the top end face of the base plate assembly (2012). A support mechanism (3) is fixedly connected to the rear side of the base plate assembly (2012). There are two support mechanisms (3), and the two support mechanisms (3) are fixedly connected to the left and right sides of the rear end of the base plate assembly (2012) in opposite directions. The top of each of the two support mechanisms (3) is fixedly connected to a side plate assembly (301). A winding roller (3011) is rotatably connected to the inner side of each of the two side plate assemblies (301). A solder assembly (3012) is wound around the outer side of the winding roller (3011). A guide bracket (4) is fixedly connected to the bottom end of the base plate assembly (2012). The guide bracket (4) has an L-shaped structure and a notch is provided inside. A guide roller (401) is installed inside the notch. The guide roller (401) is used to guide and transport the solder assembly (3012). A sleeve assembly (7012) is fixedly connected to the outer side of the support mechanism (3). (7012) is a hollow tubular structure, and a guide rod assembly (7013) is inserted inside the sleeve assembly (7012). The main body of the guide rod assembly (7013) is a cylindrical structure, and a notch is opened at the top of the guide rod assembly (7013), through which it is hinged to the connecting rod assembly (7011). A piston plate (7014) is fixedly connected to the bottom end face of the guide rod assembly (7013), and the piston plate (7014) is inserted into the sleeve assembly (7012). An air intake pipe (7015) is fixedly connected to the outer circumferential surface of the sleeve assembly (7012), and the air intake pipe (7015) is in communication with the sleeve assembly (7012). An outlet pipe (7017) is fixedly connected to the bottom end of the gas pipe (7015). A one-way valve (7016) is installed on the outside of both the outlet pipe (7017) and the inlet pipe (7015). An air distribution pipe (7018) is fixedly connected to the bottom end of the outlet pipe (7017). The air distribution pipe (7018) has a U-shaped structure and two outlets are provided at the front end of the air distribution pipe (7018). An air blowing assembly (7019) is fixedly connected inside the two outlets. The air blowing assembly (7019) is inclined and is fixedly connected to the bottom end surface of the base plate assembly (2012) and faces the welding head assembly (2014).

2. The wire harness assembly plastic mold welding device according to claim 1, characterized in that, The support mechanism (1) has a leg assembly (101) fixedly connected to its bottom end surface. There are two leg assemblies (101), and the two leg assemblies (101) are fixedly connected to the left and right sides of the bottom end surface of the support mechanism (1). The support mechanism (1) has a clamping push rod (1011) fixedly connected inside its interior. There are two clamping push rods (1011).

3. The wire harness assembly plastic mold welding device according to claim 2, characterized in that, The two clamping push rods (1011) are fixedly connected to the left and right sides inside the support mechanism (1) in opposite directions. The inner sides of the two clamping push rods (1011) are also fixedly connected to the seam clamping plate (1012), which is used to clamp the plastic mold. The longitudinal groove in the support mechanism (1) is fixedly connected to the servo push rod (2).

4. The wire harness assembly plastic mold welding device according to claim 3, characterized in that, There are two servo push rods (2), and the two servo push rods (2) are fixedly connected to the left and right sides inside the support mechanism (1) in opposite directions. The rear side of the two servo push rods (2) is connected to the movable gantry (201). The left and right sides of the outer periphery of the base plate assembly (2012) are fixedly connected to the guide brackets (2013) in opposite directions. The guide brackets (2013) move along the longitudinal groove in the movable gantry (201). The outer side of the side plate assembly (301) is fixedly connected to the support frame (5). The top surface of the support frame (5) is equipped with a servo motor (501).

5. The wire harness assembly plastic mold welding device according to claim 4, characterized in that, An input bevel gear (5011) is mounted on the bottom output shaft of the servo motor (501). A transmission gear (5012) is coaxially mounted on the outer side of the winding roller (3011). The transmission gear (5012) meshes with the input bevel gear (5011) for transmission. An output bevel gear (5013) is also mounted on the inner side of the support frame (5). The output bevel gear (5013) meshes with the transmission gear (5012) for transmission. A first pulley A (5014) is coaxially mounted on the bottom end of the output bevel gear (5013). A first pulley B (5016) is rotatably connected to the bottom end of the guide bracket (2013) located on the right side. A first belt (5015) is mounted on the outer side of the first pulley B (5016) and the first pulley A (5014).

6. The wire harness assembly plastic mold welding device according to claim 5, characterized in that, The bottom end of the first pulley B (5016) is coaxially mounted with a second pulley (5017). There are two second pulleys (5017). The other second pulley (5017) is mounted on the outside of the guide seat (6012). A second belt (5018) is also mounted on the outside of the two second pulleys (5017). A connecting column (6) is fixedly connected to the bottom end surface of the base plate assembly (2012). There are two connecting columns (6).

7. The wire harness assembly plastic mold welding device according to claim 6, characterized in that, The two connecting columns (6) are fixedly connected in a straight line array to the front and rear sides of the bottom surface of the base plate assembly (2012), and the bottom ends of the two connecting columns (6) are fixedly connected to the support base (601). The support base (601) is a ring structure, and the top of the support base (601) is provided with a ring groove, which is a guide groove (6011). The guide groove (6011) is rotatably connected to the inside of the guide groove (6011), and the main body of the guide base (6012) is a ring structure.

8. The wire harness assembly plastic mold welding device according to claim 7, characterized in that, A scraper assembly (6013) is fixedly connected to the top surface of the guide seat (6012), and the top of the scraper assembly (6013) is inclined.

9. The wire harness assembly plastic mold welding device according to claim 1, characterized in that, A turntable mechanism (7) is coaxially mounted on the side of the take-up roller (3011) away from the transmission gear plate (5012). A rotating shaft assembly (701) is eccentrically fixed to the outside of the turntable mechanism (7). A connecting rod assembly (7011) is also mounted on the outside of the rotating shaft assembly (701).

10. A method for welding a plastic mold for assembling a wire harness according to claims 1-9, characterized in that, Includes the following steps: S1: Place the plastic mold to be welded on top of the support mechanism (1) to ensure that the mold is in the initial state to be welded; S2: Start the two clamping push rods (1011) inside the support mechanism (1), push the joint clamping plate (1012) inside the clamping push rod (1011) to move inward until the joint clamping plate (1012) clamps the plastic mold and the mold weld is completed. S3: Based on the position of the weld seam of the plastic mold, the servo push rod (2) inside the longitudinal groove of the support mechanism (1) is used to adjust the lateral position of the moving gantry (201) in the longitudinal groove, so that the moving gantry (201) can drive the subsequent welding-related components to move to the area corresponding to the weld seam; S4: Activate the height push rod (2011) at the bottom of the mobile gantry (201). The height push rod (2011) pushes the base plate assembly (2012) fixedly connected to its bottom end to move up and down. The base plate assembly (2012) drives the welding head assembly (2014) at the bottom end to move synchronously until the welding head assembly (2014) is adjusted to the welding height that matches the weld of the plastic mold. Then close the height push rod (2011) to keep the position of the welding head assembly (2014) stable. S5: Start the servo motor (501) installed at the top of the support frame (5). The servo motor (501) drives the input bevel gear (5011) on its bottom output shaft to rotate. Through the meshing transmission between the input bevel gear (5011) and the transmission gear plate (5012) coaxially installed on the outside of the take-up roller (3011), the take-up roller (3011) is driven to rotate. S6: During the rotation of the winding roller (3011), the solder assembly (3012) wrapped around its outer side is gradually released. The released solder assembly (3012) enters the slot inside the L-shaped guide bracket (4) at the bottom of the base plate assembly (2012). It is guided and conveyed by the guide roller (401) in the slot, so that the solder assembly (3012) is accurately conveyed to the weld seam below the welding head assembly (2014). S7: Connect the external high-pressure air pump to the air supply pipe (2015) at the top of the base plate assembly (2012), and supply air to the inside of the welding head assembly (2014) through the air supply pipe (2015). After the gas is heated by the heating structure inside the welding head assembly (2014), it acts on the weld seam of the solder assembly (3012) and the plastic mold, causing the solder assembly (3012) to melt and combine with the mold material at the weld seam to perform welding operations. S8: During the welding process, as the winding roller (3011) rotates, the turntable mechanism (7) coaxially mounted on the side away from the transmission gear plate (5012) rotates accordingly. The rotating shaft assembly (701) eccentrically fixed on the outside of the turntable mechanism (7) drives the connecting rod assembly (7011) to move. The connecting rod assembly (7011) pulls the guide rod assembly (7013) to move up and down inside the sleeve assembly (7012). The piston plate (7014) at the bottom of the guide rod assembly (7013) reciprocates synchronously inside the sleeve assembly (7012). S9: When the piston plate (7014) moves upward, external gas enters the sleeve assembly (7012) through the inlet pipe (7015) on the outer periphery of the sleeve assembly (7012); when the piston plate (7014) moves downward, the gas in the sleeve assembly (7012) is transported to the U-shaped gas distribution pipe (7018) through the outlet pipe (7017) at the bottom of the inlet pipe (7015), and then blown towards the welding head assembly (2014) through the air blowing components (7019) inclinedly arranged in the two outlets at the front end of the gas distribution pipe (7018), cleaning the interface of the welding head assembly (2014), and the one-way valve (7016) on the outside of the inlet pipe (7015) and the outlet pipe (7017) controls the unidirectional flow of gas; S10: When the take-up roller (3011) rotates, it drives the first pulley A (5014) coaxially mounted on the bottom end of the output bevel gear (5013) to rotate through the meshing transmission of the output bevel gear (5013) and the transmission gear plate (5012). The first pulley A (5014) drives the first pulley B (5016) to rotate through the first belt (5015). The second pulley (5017) coaxially mounted on the bottom end of the first pulley B (5016) drives another second pulley mounted on the outside of the guide seat (6012) through the second belt (5018). (5017) rotates, thereby driving the guide seat (6012) to rotate in the guide groove (6011) of the support seat (601). The scraper assembly (6013) at the top of the guide seat (6012) contacts the air outlet at the bottom of the welding head assembly (2014) to remove the residue generated during the welding process. The support seat (601) is fixedly connected to the base plate assembly (2012) through the connecting column (6). The guide brackets (2013) on both sides of the outer circumference of the base plate assembly (2012) move along the longitudinal groove in the movable gantry (201) to assist in positioning.

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