Relay production and processing equipment and processing technology

Abstract

This invention discloses a relay manufacturing equipment and processing technology, relating to the field of relay component manufacturing technology. The invention includes a main frame, a loading and gripping robot, a welding host, and a good product collection frame. A multi-station indexing turntable assembly is located in the middle of the main frame. The loading and gripping robot, the welding host, and the good product collection frame are respectively located at corresponding stations on the main frame. A mounting base and a top mounting platform are fixedly installed at the bottom and top of the main frame, respectively. The multi-station indexing turntable assembly contains a water circulation cooling component for heat dissipation, and a station-opposing clamping component for clamping the metal elastic sheet. By incorporating the water circulation cooling component, this invention eliminates the need for an additional drive source, directly utilizing the rotation of the multi-station indexing turntable assembly to convert it into piston pump power, achieving automatic coolant circulation. This continuously dissipates heat from the clamping frame and simultaneously cools the workpiece, effectively suppressing welding thermal deformation.

Description

Technical Field

[0001] This invention relates to the field of relay component manufacturing and processing technology, specifically to a relay manufacturing and processing equipment and process. Background Technology

[0002] A relay is an automatic switching element that uses a small current to control a large current and a low voltage to control a high voltage. It is equivalent to an electromagnetic switch in a circuit. It can use a weak electrical signal to control the opening and closing of a high-power, high-voltage circuit. It is widely used in home appliances, automobiles, industrial control equipment, and circuit boards for automatic control and protection. During the welding process of the relay's metal elastic sheet and silver contacts, the localized high temperature generated during welding is rapidly conducted to the thin metal elastic sheet substrate, which can easily cause the elastic sheet to anneal due to heat and deform under thermal stress, leading to elastic failure and dimensional deviations, thereby affecting the relay's conduction performance and service life. Secondly, in existing relay welding operations, it is common to manually hold the metal elastic sheet for loading and positioning, and then place the silver contacts in the designated position so that the end of the workpiece is aligned with the welding head for welding. This method relies entirely on manual operation, which is not only labor-intensive and prone to human error, but also results in poor workpiece positioning consistency and the inability to achieve continuous conveying and synchronous clamping, leading to low welding efficiency and difficulty in meeting the needs of large-scale production. In response to the above problems, the inventor proposes a relay production and processing equipment and process to solve the above problems. Summary of the Invention

[0003] To address the issues of workpiece thermal deformation caused by high welding temperatures and the problem of automatic workpiece clamping and fixing during welding, the present invention aims to provide a relay manufacturing equipment and processing technology.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a relay production and processing equipment, including a main frame, a feeding and gripping robot, a welding host and a good product collection box, wherein a multi-station indexing turntable assembly is provided in the middle of the main frame, the feeding and gripping robot, the welding host and the good product collection box are respectively located at corresponding stations of the main frame, and mounting bases and top mounting platforms are respectively fixedly installed at the bottom and top of the main frame, and the multi-station indexing turntable assembly is respectively provided with a water circulation heat dissipation assembly for heat dissipation and a station opposing clamping assembly for clamping metal elastic sheets; The multi-station indexing turntable assembly includes a rotating outer cylinder, a worktable, a transmission shaft, a drive shaft, and a servo motor. The rotating outer cylinder is rotatably installed in the middle of the main frame. The worktable is fixedly installed on the top of the rotating outer cylinder by a bracket. The transmission shaft and the drive shaft are both rotatably installed on the top mounting platform by bearings, and the bottom end of the transmission shaft is fixedly connected to the middle of the worktable surface. The servo motor is fixedly installed on the top of the main frame, and the drive end of the servo motor is connected to the drive shaft by a coupling. A driven wheel is fixedly sleeved on the outer wall of the transmission shaft, and a driving wheel is fixedly sleeved on the outer wall of the drive shaft. The driving wheel and the driven wheel are meshed together. A circular rail is fixedly installed on the bottom of the outer wall of the rotating outer cylinder. Two symmetrically distributed guide pulley groups that cooperate with the circular rail are fixedly installed on the main frame. The water circulation cooling assembly includes a cylinder and a fixed inner frame. The cylinder is fixedly installed on the top of the mounting base, and the fixed inner frame is fixedly installed inside the rotating outer cylinder. The rotating outer cylinder, cylinder, and fixed inner frame are arranged coaxially. A piston rod is vertically slidably mounted in the middle of the cylinder. A sealing piston is fixedly mounted at the bottom of the piston rod, and the sealing piston is vertically and slidably sealed with the inner wall of the cylinder. A lifting seat is fixedly mounted at the top of the piston rod. Guide bolts are fixedly mounted at the middle of both ends of the lifting seat. A guide groove is provided on the fixed inner frame to cooperate with the guide bolts. The guide groove consists of eight sets of inclined rising sections and vertical reset sections arranged in a ring array. Each set of inclined rising sections and vertical reset sections are connected end to end to form a continuous circulating guide trajectory for the guide bolts to be embedded and slide along the trajectory. The liquid inlet end of the cylinder is connected to a liquid inlet sleeve, and the top of the liquid inlet sleeve is connected to a liquid outlet sleeve. The liquid inlet sleeve and the liquid outlet sleeve are respectively provided with liquid inlet steel balls and liquid outlet steel balls. The bottom end of the liquid inlet sleeve is connected to... The infusion tube connects to the bottom of the external water tank. An inner infusion frame is fixedly fitted onto the outer wall of the rotating outer cylinder. An outer infusion frame is rotatably sealed onto the outer wall of the inner infusion frame and fixedly connected to the main frame. The inner infusion frame has an inlet channel and a return channel. The inlet channel connects to the inlet end of the outer infusion frame, and the return channel connects to the outlet end. The inlet end of the outer infusion frame connects to the outlet end of the outlet sleeve via a conduit. The inlet channel is distributed via a liquid distributor. After the flow, it is connected to the inlet end of the corresponding clamping frame. The outlet end of the clamping frame is connected to the return channel through the liquid manifold via the conduit. The outlet end of the infusion frame is connected to the external liquid heat dissipation component via the conduit. Two symmetrically distributed guide rods are fixedly installed at the top of the mounting base. A connecting plate is fixedly installed at the top of the guide rod. The lifting seat is slidably installed on the guide rod. A return spring is sleeved on the outer wall of the guide rod, and the two ends of the return spring are connected to the bottom end of the connecting plate and the top end of the lifting seat, respectively.

[0005] Preferably, the station-facing clamping assembly includes a convex ring and eight clamping units. Each clamping unit has two symmetrically distributed sliding plates. The convex ring is fixedly connected to the middle of the main frame via a bracket. The sliding plates are slidably mounted on the worktable. A clamping frame is fixedly mounted on the inner side of the sliding plate. A push plate that cooperates with the sliding plate is slidably mounted on the worktable surface. The push plate has eight push plates arranged in a circular array. A guide plate is fixedly mounted on the top of the sliding plate. A spline is fixedly mounted on the end of the push plate. A guide seat is slidably mounted on the outer wall of the spline via a spline. The guide seat is fixedly connected to the worktable surface. A pulley seat is fixedly mounted on the end of the guide seat. A pulley is mounted on the end of the pulley seat. The outer wall of the convex ring is fitted with a drive spring, and the two ends of the drive spring are connected to the guide seat and the pulley seat respectively. The guide plate has an inclined groove that is inclined towards the push plate. Two symmetrically distributed fixing bolts are fixedly installed on the upper and lower surfaces of the push plate. The two upper fixing bolts slide in the corresponding inclined grooves. Two symmetrically distributed guide wheels are rotatably installed at the bottom of the sliding plate. The multi-station indexing turntable assembly has a sliding groove corresponding to the guide wheel, and the guide wheel slides in the sliding groove. The multi-station indexing turntable assembly has a limiting groove that works with the fixing bolts, and the two lower fixing bolts slide in the corresponding limiting groove.

[0006] Preferably, a circulation channel is provided inside the clamping frame. The circulation channel extends along the inner cavity of the clamping frame and then turns back once to form a U-shaped closed liquid circulation channel.

[0007] A processing technology used in relay manufacturing equipment includes the following steps: S1. The loading and gripping robot grips the workpiece with the metal spring and connecting seat pre-assembled, and transfers it to the corresponding processing station of the multi-station indexing turntable assembly. S2. The multi-station indexing turntable assembly drives the workpiece to the welding station of the welding host and the unloading station of the good product collection box for intermittent indexing and conveying. During the conveying process, the workpiece is clamped and fixed by the station opposing clamping assembly. When the workpiece is completed and transferred to the unloading station where the good product collection box is located, the station opposing clamping assembly automatically releases the clamping of the workpiece. S3. Each time the multi-station indexing turntable assembly completes one intermittent rotation, the water circulation heat dissipation assembly synchronously drives the piston rod and the sealing piston to reciprocate once, realizing the one-way delivery of coolant. The coolant delivered in one direction cools the workpiece held by the opposing clamping assembly at the workstation in real time. S4. Move the workpiece to the welding station corresponding to the welding host, place the silver contact at the corresponding round groove at the end of the metal spring through the external feeding device, and then complete the silver contact welding operation through the welding host. S5. The workpiece that has been welded and cooled is rotated to the unloading station by the multi-station indexing turntable assembly. The welded workpiece is pushed into the good product collection frame by the external push rod.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting up a water circulation heat dissipation component, eliminates the need for an additional drive source. It directly utilizes the rotation of the multi-station indexing turntable component to convert into piston pump power, thereby achieving automatic circulation of coolant. This continuously dissipates heat from the clamping frame and simultaneously cools the workpiece, effectively suppressing welding thermal deformation. Combined with the multi-station indexing turntable and the station-opposing clamping component, it achieves automatic centering and clamping of the workpiece and efficient continuous production. While simplifying the structure and reducing energy consumption, it significantly improves welding accuracy and product stability. 2. This invention, by setting up a multi-station indexing turntable assembly, relies on servo motor drive and gear meshing transmission to achieve stable intermittent rotation of the worktable, precisely control the rotation angle and pause rhythm, and ensure that the workpiece is transported in an orderly and intermittent manner between each processing station; 3. This invention, by setting up a station-opposing clamping assembly and relying on a convex ring trigger-type drive structure, requires no additional drive source. It only utilizes the rotational power of the multi-station indexing turntable. During the rotation of the worktable, the convex ring serves as a fixed reference. Its contour change triggers the movement of the spline-driven push plate, which drives the clamping mechanism to automatically tighten. This ensures that the workpiece remains stably clamped throughout the entire process of conveying and processing. Moreover, this clamping action is synchronized with the indexing rotation, requiring no manual intervention. This achieves automation and precision in workpiece clamping, ensuring the accuracy of the welding position and perfectly matching the overall production rhythm. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall top view structure of the present invention; Figure 3 This is a schematic diagram of the main frame structure in this invention; Figure 4 This is a schematic diagram of the side profile of the multi-station indexing turntable assembly in this invention; Figure 5 This is a schematic diagram of the overall structure of the multi-station indexing turntable assembly in this invention; Figure 6 This is a schematic diagram of the overall structure of the workstation opposing clamping assembly in this invention; Figure 7 This is a schematic diagram of a portion of the water circulation heat dissipation component in this invention; Figure 8 This is a schematic diagram of the overall coolant circulation structure in this invention; Figure 9 This is a schematic diagram of the transmission structure of the workstation opposing clamping assembly in this invention; Figure 10 This is a schematic diagram of the structure of the clamping frame and the circulation channel in this invention; Figure 11 This is a schematic diagram of the unfolded structure of the rotating outer cylinder, the fixed inner frame, and the infusion inner frame in this invention; Figure 12 for Figure 4 Enlarged structural diagram at point A; Figure 13 for Figure 4 Enlarged structural diagram at point B; Figure 14 for Figure 6 Enlarged schematic diagram of the structure at point C.

[0011] In the diagram: 1. Main frame; 2. Multi-station indexing turntable assembly; 201. Rotating outer cylinder; 202. Worktable; 203. Transmission shaft; 204. Drive shaft; 205. Servo motor; 206. Driven wheel; 207. Drive wheel; 208. Circular rail; 209. Guide pulley block; 3. Material handling robot; 4. Welding main unit; 5. Good product collection frame; 6. Mounting base; 7. Top mounting platform; 8. Water circulation cooling assembly; 801. Cylinder; 802. Fixed inner frame; 803. Circulation channel; 804. Piston rod; 805. Sealing piston; 806. Lifting seat; 807. Guide bolt; 808. Guide groove; 8 9. Inlet sleeve; 810. Outlet sleeve; 811. Inlet steel ball; 812. Outlet steel ball; 813. Inlet frame; 8131. Inlet channel; 8132. Return channel; 814. Outer frame; 815. Guide rod; 816. Connecting plate; 817. Return spring; 9. Station opposing clamping assembly; 901. Convex ring; 902. Sliding plate; 903. Clamping frame; 904. Push plate; 905. Guide plate; 906. Flower shaft; 907. Guide seat; 908. Pulley seat; 909. Drive spring; 910. Fixing bolt; 911. Inclined groove; 912. Guide wheel; 913. Slide groove; 914. Limiting groove. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Example: Figure 1-14 As shown, the present invention provides a technical solution: a relay production and processing equipment, including a main frame 1, a feeding and gripping robot 3, an electric welding host 4, and a good product collection box 5. A multi-station indexing turntable assembly 2 is provided in the middle of the main frame 1. The feeding and gripping robot 3, the electric welding host 4, and the good product collection box 5 are respectively located at corresponding stations of the main frame 1. The bottom and top of the main frame 1 are respectively fixedly installed with a mounting base 6 and a top mounting platform 7. The multi-station indexing turntable assembly 2 is respectively provided with a water circulation heat dissipation assembly 8 for heat dissipation, and a station opposing clamping assembly 9 for clamping metal elastic sheets. The multi-station indexing turntable assembly 2 includes a rotating outer cylinder 201, a worktable 202, a transmission shaft 203, a drive shaft 204, and a servo motor 205. The rotating outer cylinder 201 is rotatably mounted in the middle of the main frame 1. The worktable 202 is fixedly mounted on the top of the rotating outer cylinder 201 by a bracket. The transmission shaft 203 and the drive shaft 204 are both rotatably mounted on the top mounting platform 7 by bearings, and the bottom end of the transmission shaft 203 is fixedly connected to the middle of the worktable 202. The servo motor 205 is fixedly mounted on the top of the main frame 1, and the drive end of the servo motor 205 is connected to the drive shaft 204 by a coupling. The water circulation heat dissipation assembly 8 includes a cylinder 801 and a fixed inner frame 802. The cylinder 801 is fixedly installed on the top of the mounting base 6, and the fixed inner frame 802 is fixedly installed inside the rotating outer cylinder 201. The rotating outer cylinder 201, the cylinder 801, and the fixed inner frame 802 are arranged coaxially. A piston rod 804 is vertically slidably provided in the middle of the cylinder 801. A sealing piston 805 is fixedly installed at the bottom of the piston rod 804, and the sealing piston 805 is vertically sealed and slidably engaged with the inner wall of the cylinder 801. A lifting seat 806 is fixedly installed at the top of the piston rod 804. Guide bolts 807 are fixedly installed at the middle of both ends of the lifting seat 806. A guide groove 808 is provided on the fixed inner frame 802 to cooperate with the guide bolts 807.

[0014] By adopting the above technical solution, when the rotating outer cylinder 201 drives the fixed inner frame 802 to rotate synchronously and intermittently, the guide groove 808 can cooperate with the guide bolt 807 to convert the circumferential rotation into the vertical reciprocating motion of the lifting seat 806, thereby driving the piston rod 804 and the sealing piston 805 to reciprocate and seal within the cylinder 801, providing continuous and stable pumping power for the water circulation heat dissipation assembly 8, and realizing the circulation and delivery of coolant and synchronous heat dissipation at the workstation.

[0015] The workstation opposing clamping assembly 9 includes a convex ring 901 and eight clamping units. Each clamping unit has two symmetrically distributed sliding plates 902. The convex ring 901 is fixedly connected to the middle of the main frame 1 via a bracket. The sliding plates 902 are slidably mounted on the worktable 202. A clamping frame 903 is fixedly mounted on the inner side of the sliding plate 902. A push plate 904 that cooperates with the sliding plate 902 is slidably mounted on the surface of the worktable 202. The push plate 904 has eight push plates arranged in a circular array. A guide plate 905 is fixedly mounted on the top of the sliding plate 902. A spline shaft 906 is fixedly mounted on the end of the push plate 904. The outer wall of the spline shaft 906 is slidably mounted via a spline. A guide seat 907 is mounted on the guide seat 907 and is fixedly connected to the worktable 202. A pulley seat 908 is fixedly mounted on the end of the guide seat 907. The pulley at the end of the pulley seat 908 is in contact with the outer wall of the convex ring 901. A drive spring 909 is sleeved on the outer wall of the flower shaft 906. The two ends of the drive spring 909 are connected to the guide seat 907 and the pulley seat 908 respectively. A sloping groove 911 inclined towards the push plate 904 is opened on the guide plate 905. Two symmetrically distributed fixing bolts 910 are fixedly mounted on the upper and lower surfaces of the push plate 904. The two fixing bolts 910 located at the top slide in the corresponding sloping grooves 911 respectively.

[0016] By adopting the above technical solution, during the indexing rotation of the worktable 202, the pulley at the end of the pulley seat 908 rolls along the outer wall of the fixed convex ring 901, and the elastic force of the drive spring 909 drives the flower shaft 906 and the push plate 904 to move radially; the fixing bolt 910 on the push plate 904 slides along the inclined groove 911 of the guide plate 905, thereby driving the sliding plates 902 on both sides and the clamping frame 903 to clamp in opposite directions or loosen in opposite directions at the same time, so as to realize the automatic centering and clamping of the relay workpiece.

[0017] A circulation channel 803 is provided inside the clamping frame 903. The circulation channel 803 extends along the inner cavity of the clamping frame 903 and then turns back once to form a U-shaped closed liquid circulation channel.

[0018] By adopting the above technical solution, the coolant can flow fully in the U-shaped circulation channel 803 inside the clamping frame 903, increasing the heat exchange area with the clamping frame 903 and improving the cooling efficiency.

[0019] A driven wheel 206 is fixedly sleeved on the outer wall of the drive shaft 203, and a driving wheel 207 is fixedly sleeved on the outer wall of the drive shaft 204, and the driving wheel 207 is meshed with the driven wheel 206.

[0020] By adopting the above technical solution, when the servo motor 205 drives the drive shaft 204 and the active wheel 207 to rotate continuously, the driven wheel 206 and the transmission shaft 203 are driven to perform intermittent indexing motion through gear meshing. This achieves that for every rotation of the drive shaft 204, the transmission shaft 203 rotates one-eighth of a circle synchronously, thereby driving the worktable 202 to complete the precise indexing and rotation of eight workstations at equal angles.

[0021] A circular rail 208 is fixedly installed on the bottom of the outer wall of the rotating outer cylinder 201, and two symmetrically distributed guide pulley groups 209 that cooperate with the circular rail 208 are fixedly installed on the main frame 1.

[0022] By adopting the above technical solution, the rotating outer cylinder 201 achieves radial positioning and circumferential guidance through the rolling cooperation between the circular rail 208 and the guide pulley group 209 during intermittent rotation, effectively reducing rotational friction and preventing the rotating outer cylinder 201 from radially swaying or deviating.

[0023] The cylinder 801 has an inlet sleeve 809 connected to the inlet end, and an outlet sleeve 810 connected to the top of the inlet sleeve 809. The inlet sleeve 809 and the outlet sleeve 810 are respectively provided with inlet steel balls 811 and outlet steel balls 812. The bottom end of the inlet sleeve 809 is connected to the bottom of the external water tank through a conduit. When the piston rod 804 reciprocates, the cylinder 801 can achieve one-way on / off control by relying on the inlet steel balls 811 and outlet steel balls 812 to complete the intake and discharge of coolant. An infusion inner frame 813 is fixedly fitted on the outer wall of the rotating outer cylinder 201. An infusion outer frame 814 is rotatably sealed on the outer wall of the infusion inner frame 813, and the infusion outer frame 814 is fixedly connected to the main frame 1. An inlet channel 8131 and a return channel 8132 are respectively opened inside the infusion inner frame 813. The inlet channel 8131 is connected to the inlet end of the infusion outer frame 814, and the return channel 8132 is connected to the outlet end of the infusion outer frame 814. The inlet end of the infusion outer frame 814 is connected to the outlet end of the outlet sleeve 810 through a conduit. When the infusion inner frame 813 rotates with the rotating outer cylinder 201, it maintains a rotational sealing fit with the infusion outer frame 814, so that the rotating outer cylinder 201 can still maintain stable liquid delivery during rotation. The inlet channel 8131 is connected to the inlet end of the corresponding clamping frame 903 after being diverted by the liquid distributor through the conduit. The outlet end of the clamping frame 903 is connected to the return channel 8132 after being merged by the liquid manifold through the conduit. The outlet end of the infusion frame 814 is connected to the external liquid heat dissipation component through the conduit.

[0024] By adopting the above technical solution, the coolant is diverted through the inlet channel 8131 to each clamping frame 903 for cooling and heat dissipation, and then converged through the return channel 8132 and transported to the external liquid heat dissipation component, forming a complete closed cooling cycle.

[0025] Two symmetrically distributed guide rods 815 are fixedly installed at the top of the mounting base 6. A connecting plate 816 is fixedly installed at the top of the guide rods 815. The lifting seat 806 is slidably installed on the guide rods 815. A return spring 817 is sleeved on the outer wall of the guide rods 815, and the two ends of the return spring 817 are respectively connected to the bottom end of the connecting plate 816 and the top end of the lifting seat 806.

[0026] By adopting the above technical solution, the guide rod 815 provides stable guidance for the vertical sliding of the lifting seat 806, and the return spring 817 can apply a continuous elastic return force to the lifting seat 806, ensuring that the piston rod 804 and the sealing piston 805 can smoothly descend and return to their original positions.

[0027] Two symmetrically distributed guide wheels 912 are rotatably mounted at the bottom of the sliding plate 902. The multi-station indexing turntable assembly 2 has a groove 913 corresponding to the guide wheel 912, and the guide wheel 912 slides in the groove 913. The multi-station indexing turntable assembly 2 has a limiting groove 914 that works in conjunction with the fixing bolts 910, and the two fixing bolts 910 located below slide within the corresponding limiting grooves 914.

[0028] By adopting the above technical solution, when the sliding plate 902 moves radially, the guide wheel 912 at its bottom end can roll along the slide groove 913 on the multi-station indexing turntable assembly 2, reducing frictional resistance and ensuring stable movement direction. At the same time, the fixing bolt 910 located below slides along the corresponding limiting groove 914, further limiting and constraining the movement trajectory of the push plate 904.

[0029] The guide groove 808 consists of eight sets of inclined rising sections and vertical reset sections arranged in a ring array. Each set of inclined rising sections and vertical reset sections are connected end to end to form a continuous cyclic guide trajectory, which allows the guide bolt 807 to be embedded and slide along the trajectory.

[0030] By adopting the above technical solution, during the intermittent rotation of the fixed inner frame 802, the guide bolt 807, guided by the trajectory of the guide groove 808, drives the lifting seat 806 to first rise along the guide rod 815 and then fall along the guide rod 815, thereby smoothly converting the intermittent rotation of the fixed inner frame 802 into the reciprocating lifting movement of the lifting seat 806, providing a stable initial power for the delivery of coolant.

[0031] A processing technology used in relay manufacturing equipment includes the following steps: S1. The loading and gripping robot 3 grips the workpiece with the metal spring and connecting seat pre-assembled, and transfers it to the corresponding processing station of the multi-station indexing turntable assembly 2. S2. The multi-station indexing turntable assembly 2 drives the workpiece to the welding station of the welding host 4 and the unloading station of the good product collection box 5 for intermittent indexing and conveying. During the conveying process, the workpiece is clamped and fixed by the station opposing clamping assembly 9. When the workpiece is completed and transferred to the unloading station where the good product collection box 5 is located, the station opposing clamping assembly 9 automatically releases the clamping of the workpiece. S3. Each time the multi-station indexing turntable assembly 2 completes one intermittent rotation, the water circulation heat dissipation assembly 8 synchronously drives the piston rod 804 and the sealing piston 805 to reciprocate once, realizing the one-way delivery of coolant. The coolant delivered in one direction cools the workpiece held by the opposing clamping assembly 9 at the workstation in real time. S4. The workpiece is moved to the welding station corresponding to the welding host 4. The silver contact is placed at the corresponding round groove at the end of the metal spring by the external feeding device. Then the silver contact welding operation is completed by the welding host 4. S5. The workpiece that has been welded and cooled is rotated to the unloading station by the multi-station indexing turntable assembly 2. The welded workpiece is pushed into the good product collection frame 5 by the external push rod.

[0032] Working principle: In actual production operations, the PLC controller coordinates the timing of actions of each actuator to achieve fully automatic continuous operation according to the preset processing rhythm. After the equipment starts, the PLC controller outputs control signals to drive the servo motor 205 to operate stably according to the preset cycle. The drive end of the servo motor 205 drives the drive shaft 204 to rotate synchronously through the coupling. The driving wheel 207 on the outer wall of the drive shaft 204 meshes with the driven wheel 206 on the outer wall of the transmission shaft 203, thereby driving the transmission shaft 203 and the worktable 202 fixedly connected to it to complete the eight-station intermittent indexing rotation. This ensures that for every one revolution of the drive shaft 204, the transmission shaft 203 rotates one-eighth of a circle synchronously, accurately completing one station switching cycle. Within each processing cycle, the PLC controller synchronously outputs control commands to control the loading and gripping robot 3 to perform actions, accurately gripping the workpiece pre-assembled with the metal spring and connecting seat, and transferring it to the corresponding processing station of the multi-station indexing turntable assembly 2; during the indexing rotation of the worktable 202, the pulley at the end of the pulley seat 908, under the pre-tightening force of the drive spring 909, always rolls in contact with the outer wall of the convex ring 901 fixedly installed on the main frame 1; when the pulley seat 908 rotates with the worktable to the protruding part of the convex ring 901, under the action of the resistance of the convex ring 901 and the elastic force of the drive spring 909, it pushes the flower shaft 906 and the push plate 904 to move radially along the guide seat 907, and the fixing bolt 910 on the upper surface of the push plate 904 slides along the inclined groove 911 of the guide plate 905. Through the guiding action of the inclined groove 911, it drives the sliding plates 902 on both sides and the clamping frame 903 to move synchronously in opposite directions, realizing automatic centering and clamping of the workpiece; During the indexing rotation of the worktable 202, the rotating outer cylinder 201 drives the fixed inner frame 802 to rotate intermittently in sync. When the worktable 202 stops rotating, the guide bolt 807 is exactly in the vertical reset section of the guide groove 808. Therefore, as the fixed inner frame 802 rotates with the rotating outer cylinder 201, the inclined rising section of the guide groove 808 generates a vertical guiding force on the guide bolt 807, causing the lifting seat 806 to slide upward along the guide rod 815 and compress the reset spring 817 to return to its original position. In the compressed state; when the worktable 202 completes the indexing rotation and stops, the guide bolt 807 falls into the vertical reset section of the guide groove 808, the reset spring 817 releases its elastic potential energy, and pushes the lifting seat 806 to reset downward along the guide rod 815; the reciprocating lifting motion of the lifting seat 806 drives the piston rod 804 and the sealing piston 805 to complete one reciprocating pumping action in the cylinder 801: when the sealing piston 805 moves upward, a negative pressure is formed inside the cylinder 801, and the liquid enters the inlet sleeve 809. When steel ball 811 opens, the outlet steel ball 812 inside the outlet sleeve 810 closes, and the coolant in the external water tank is drawn into the cylinder 801 through the inlet sleeve 809. When the sealing piston 805 pushes downward, the internal pressure of the cylinder 801 increases, the inlet steel ball 811 and the inlet sleeve 809 close, and the outlet steel ball 812 opens. The coolant in the cylinder 801 is then pressurized and sent to the outer fluid delivery frame 814, and flows into the inner fluid delivery frame 813, which rotates synchronously with the rotating outer cylinder 201. After being diverted through the inlet channel 8131, the liquid is transported through conduits to the U-shaped circulation channels 803 inside each clamping frame 903. Heat conduction is used to dissipate heat and cool down the clamping frame 903 and the clamped workpiece, achieving synchronous heat dissipation of the workpiece during the welding process. The cooled liquid, after absorbing heat, flows out through the outlet end of the clamping frame 903, is collected by the liquid manifold, and is transported through the return channel 8132 to the outer liquid delivery frame 814, and finally returns to the external liquid heat dissipation component for cooling, forming a complete closed-loop cooling cycle. When the workpiece is transferred to the corresponding welding station of the welding host 4 by the worktable 202, the worktable 202 stops rotating under the control of the PLC controller and enters a cycle interval. At this time, the external feeding device operates according to the preset sequence, accurately placing the silver contact into the corresponding circular groove at the end of the metal spring. After placement, the PLC controller outputs a welding command, controlling the welding host 4 to start and complete the welding operation between the silver contact and the metal spring. After the welding operation is completed, the PLC controller controls the servo motor 205 to start again, driving the worktable 202 to continue its indexing rotation. The workpiece is transferred along with the worktable to the unloading station where the good product collection box 5 is located. During this transfer process, the pulley seat 908 rotates with the worktable to the recessed part of the convex ring 901, drives the spring 909 to reset, drives the push plate 904 to move in the opposite direction, and then causes the sliding plate 902 and the clamping frame 903 to separate in the opposite direction, automatically releasing the workpiece. When the workpiece is transferred to the unloading station, the worktable 202 stops rotating, and the PLC controller triggers the external push rod to accurately push the finished workpiece that has been welded and cooled into the good product collection box 5, thus completing a complete processing cycle.

[0033] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A relay manufacturing and processing equipment, comprising a main frame (1), a feeding and gripping robot (3), a welding host (4), and a good product collection frame (5), characterized in that: The main frame (1) is provided with a multi-station indexing turntable assembly (2) in the middle. The loading and gripping robot (3), the welding host (4) and the good product collection box (5) are respectively located at the corresponding stations of the main frame (1). The bottom and top of the main frame (1) are respectively fixedly installed with mounting base (6) and top mounting platform (7). The multi-station indexing turntable assembly (2) is provided with a water circulation heat dissipation assembly (8) for heat dissipation, and a station opposing clamping assembly (9) for clamping metal elastic sheets. The multi-station indexing turntable assembly (2) includes a rotating outer cylinder (201), a worktable (202), a transmission shaft (203), a drive shaft (204), and a servo motor (205). The rotating outer cylinder (201) is rotatably installed in the middle of the main frame (1). The worktable (202) is fixedly installed on the top of the rotating outer cylinder (201) by a bracket. The transmission shaft (203) and the drive shaft (204) are both rotatably installed on the top mounting platform (7) by bearings. The bottom end of the transmission shaft (203) is fixedly connected to the middle of the worktable (202) table surface. The servo motor (205) is fixedly installed on the top of the main frame (1). The drive end of the servo motor (205) is connected to the drive shaft (204) by a coupling. The water circulation heat dissipation assembly (8) includes a cylinder (801) and a fixed inner frame (802). The cylinder (801) is fixedly installed on the top of the mounting base (6), and the fixed inner frame (802) is fixedly installed inside the rotating outer cylinder (201). The rotating outer cylinder (201), the cylinder (801) and the fixed inner frame (802) are arranged coaxially. A piston rod (804) is vertically slidably provided in the middle of the cylinder (801). A sealing piston (805) is fixedly installed at the bottom of the piston rod (804), and the sealing piston (805) is vertically sealed and slidably engaged with the inner wall of the cylinder (801). A lifting seat (806) is fixedly installed at the top of the piston rod (804). Guide bolts (807) are fixedly installed at the middle of both ends of the lifting seat (806). A guide groove (808) is provided on the fixed inner frame (802) to cooperate with the guide bolts (807).

2. The relay manufacturing apparatus according to claim 1, wherein The station-facing clamping assembly (9) includes a convex ring (901) and eight clamping units. Each clamping unit has two symmetrically distributed sliding plates (902). The convex ring (901) is fixedly connected to the middle of the main frame (1) through a bracket. The sliding plates (902) are slidably mounted on the workbench (202). A clamping frame (903) is fixedly mounted on the inner side of the sliding plate (902). The workbench (202) is slidably provided with a push plate (904) that works with the sliding plate (902). The push plate (904) has eight push plates arranged in a circular array. A guide plate (905) is fixedly mounted on the top of the sliding plate (902). A spline shaft (906) is fixedly mounted on the end of the push plate (904). The outer wall of the spline shaft (906) is slidably mounted through a spline. A guide seat (907) is installed and fixedly connected to the worktable (202). A pulley seat (908) is fixedly installed at the end of the guide seat (907). The pulley at the end of the pulley seat (908) is in contact with the outer wall of the convex ring (901). A drive spring (909) is sleeved on the outer wall of the flower shaft (906). The two ends of the drive spring (909) are connected to the guide seat (907) and the pulley seat (908) respectively. A sloping groove (911) inclined towards the push plate (904) is opened on the guide plate (905). Two symmetrically distributed fixing bolts (910) are fixedly installed on the upper and lower surfaces of the push plate (904). The two fixing bolts (910) located at the top slide in the corresponding sloping grooves (911).

3. The relay manufacturing apparatus according to claim 2, wherein The clamping frame (903) has a circulation channel (803) inside. The circulation channel (803) extends along the inner cavity of the clamping frame (903) and then turns back once to form a U-shaped closed liquid circulation channel.

4. The relay manufacturing apparatus of claim 1 wherein, The drive shaft (203) has a driven wheel (206) fixedly sleeved on its outer wall, and the drive shaft (204) has a driving wheel (207) fixedly sleeved on its outer wall, and the driving wheel (207) and the driven wheel (206) are meshed together.

5. The relay manufacturing apparatus of claim 1 wherein, The bottom of the outer wall of the rotating outer cylinder (201) is fixedly installed with a circular rail (208), and two symmetrically distributed guide pulley groups (209) that cooperate with the circular rail (208) are fixedly installed on the main frame (1).

6. The relay manufacturing apparatus of claim 1 wherein, The cylinder body (801) has an inlet sleeve (809) connected to the inlet end, and an outlet sleeve (810) connected to the top of the inlet sleeve (809). The inlet sleeve (809) and the outlet sleeve (810) are respectively provided with an inlet steel ball (811) and an outlet steel ball (812). The bottom end of the inlet sleeve (809) is connected to the bottom of the external water tank through a conduit. The outer wall of the rotating outer cylinder (201) is fixedly fitted with an infusion inner frame (813), and the outer wall of the infusion inner frame (813) is rotatably sealed with an infusion outer frame (814). The infusion outer frame (814) is fixedly connected to the main frame (1). The infusion inner frame (813) is provided with an inlet channel (8131) and a return channel (8132) respectively. The inlet channel (8131) is connected to the inlet end of the infusion outer frame (814), and the return channel (8132) is connected to the outlet end of the infusion outer frame (814). The inlet end of the infusion outer frame (814) is connected to the outlet end of the outlet sleeve (810) through a conduit. The inlet channel (8131) is connected to the inlet end of the corresponding clamping frame (903) after being diverted by the liquid distributor through the conduit. The outlet end of the clamping frame (903) is connected to the return channel (8132) after being merged by the liquid distributor through the conduit. The outlet end of the infusion frame (814) is connected to the external liquid heat dissipation component through the conduit.

7. The relay manufacturing apparatus of claim 1 wherein, The mounting base (6) has two symmetrically distributed guide rods (815) fixedly installed at its top. A connecting plate (816) is fixedly installed at the top of the guide rods (815). The lifting seat (806) is slidably installed on the guide rods (815). A return spring (817) is sleeved on the outer wall of the guide rods (815), and the two ends of the return spring (817) are respectively connected to the bottom end of the connecting plate (816) and the top end of the lifting seat (806).

8. The relay manufacturing apparatus of claim 2 wherein, The bottom end of the sliding plate (902) is rotatably mounted with two symmetrically distributed guide wheels (912). The multi-station indexing turntable assembly (2) is provided with a groove (913) corresponding to the guide wheel (912), and the guide wheel (912) slides in the groove (913). The multi-station indexing turntable assembly (2) has a limiting groove (914) that works with the fixing bolts (910), and the two fixing bolts (910) located below slide in the corresponding limiting groove (914).

9. The relay manufacturing apparatus of claim 1 wherein, The guide groove (808) consists of eight sets of inclined rising sections and vertical reset sections arranged in a ring array. Each set of inclined rising sections and vertical reset sections are connected end to end to form a continuous cyclic guide trajectory, which allows the guide bolt (807) to be embedded and slide along the trajectory.

10. A processing technique for use in a relay production processing apparatus according to any one of claims 1 to 9, characterized by, Includes the following steps: S1. The loading and gripping robot (3) grips the workpiece with the metal spring and connecting seat pre-assembled and transfers it to the corresponding processing station of the multi-station indexing turntable assembly (2). S2. The multi-station indexing turntable assembly (2) drives the workpiece to the welding station of the welding host (4) and the unloading station of the good product collection box (5) for intermittent indexing and conveying. During the conveying process, the workpiece is clamped and fixed by the station opposing clamping assembly (9). When the workpiece is completed and transferred to the unloading station where the good product collection box (5) is located, the station opposing clamping assembly (9) automatically releases the clamping of the workpiece. S3. For each intermittent rotation of the multi-station indexing turntable assembly (2), the water circulation heat dissipation assembly (8) synchronously drives the piston rod (804) and the sealing piston (805) to move back and forth once, realizing the one-way delivery of coolant. The coolant delivered in one direction cools the workpiece held by the opposite clamping assembly (9) at the workstation in real time. S4. Move the workpiece to the welding station corresponding to the welding host (4), place the silver contact at the corresponding round groove at the end of the metal spring through the external feeding device, and then complete the silver contact welding operation through the welding host (4). S5. The workpiece that has been welded and cooled is moved to the unloading station by the multi-station indexing turntable assembly (2). The welded workpiece is pushed into the good product collection frame (5) by the external push rod.

Images