Double-pusher dog feeding mechanism for assembling electric connector

Abstract

The utility model relates to the field of electric connector production devices, and provides a double-pusher dog feeding mechanism for assembling an electric connector. Comprising a supporting frame, the supporting frame comprises a bottom plate and a pair of vertical supporting plates installed on the bottom plate, a horizontal material channel is installed at the tops of the two vertical supporting plates, the two ends of the material channel communicate with material channels of a front work station and a rear work station for assembling the electric connector, and two lead screws are installed between the pair of supporting plates; one end of each lead screw extends out of the outer side of the supporting plate and is connected with a servo motor, two parallel feeding structures are arranged, each feeding structure is composed of a lead screw, a lead screw head, a mounting plate and a pusher dog, and when one feeding structure feeds an electric connector to the tail end of the stroke, the electric connector is fed back through the feedback of a sensor. And the second feeding structure starts to feed the second electric connector without waiting for returning of the first feeding structure. According to the technical scheme, the feeding period can be shortened by half, and the assembling efficiency of the electric connector is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector manufacturing equipment, specifically to a double claw feeding mechanism for assembling electrical connectors. Background Technology

[0002] Electrical connectors generally consist of a plastic body and electronic contacts. Assembly is typically performed on automated production lines to improve production efficiency. For connectors used in DDR and PCI systems, due to their elongated plastic body, they are usually placed in a fixed flow channel during assembly. Stepper motors and feeders move the plastic body from one station to the next. The conventional feeding method involves the feeder moving the plastic body from one end of the feed channel to the other, then returning to its initial position to begin feeding the next plastic body. The feeding interval is the time it takes for the feeder to make one round trip. For high-volume continuous production lines, the processing time for a single product depends on the processing time of the station with the longest processing time. Therefore, measures need to be taken to reduce the feeding interval. Summary of the Invention

[0003] In order to reduce the impact of feeding interval on working time and improve the production efficiency of electrical connectors, this utility model provides a double claw feeding mechanism for electrical connector assembly.

[0004] The technical solution adopted by this utility model is as follows: a double-claw feeding mechanism for electrical connector assembly, including a support frame, the support frame including a base plate and a pair of vertical support plates mounted on the base plate, a horizontal feed channel installed on the top of the two vertical support plates, the two ends of the feed channel communicating with the feed channels of the front and rear workstations of the electrical connector assembly, characterized in that two lead screws are installed between the pair of support plates, the two lead screws are parallel and arranged vertically, the two ends of the lead screws are respectively rotatably connected to the corresponding support plates through bearings, one end of each lead screw extends out of the outside of the support plate and is respectively connected to a servo motor, each lead screw is respectively installed with a lead screw head, the lead screw head is threaded with the lead screw, and a connecting plate is fixedly installed on the front side of each lead screw head, each connecting plate... Mounting plates are mounted on the connecting plates, and sliders are fixedly mounted on the mounting plates. A linear track corresponding to each slider is installed between a pair of support plates. When the servo motor rotates, the lead screw drives the mounting plates to move linearly along the linear track. Each mounting plate has a pawl mounted on its top. The pawl is movably mounted in the mounting groove on the top of the mounting plate by a spring. When the mounting plate moves along the feeding direction of the horizontal material channel, the pawl extends out of the mounting groove and is in a vertical position. When the mounting plate moves along the reset direction of the horizontal material channel and encounters the electrical connector, the pawl retracts or rotates against the spring force. The two mounting plates are staggered front to back, and the two corresponding pawls are staggered front to back and spaced to cooperate with the part of the electrical connector that extends out of the horizontal material channel.

[0005] Furthermore, the two mounting plates are respectively fixedly connected to the corresponding lead screw head by one or more connecting plates. The two mounting plates are vertically arranged and staggered front to back and fit together in the direction perpendicular to the feeding direction of the electrical connector. The tops of the two mounting plates are flush, and the two claws are staggered front to back with a gap.

[0006] Furthermore, baffles are fixedly installed on the rear side of the lead screw head, and the baffles cooperate with photoelectric sensors on the support frame. The photoelectric sensors correspond to the end position of the feeding stroke.

[0007] Furthermore, the pawl is mounted in the mounting slot on the mounting plate via a rotating shaft and a torsion spring and rotates within the mounting slot, or the pawl is mounted in the mounting slot via a guide shaft and a spring and moves vertically within the mounting slot.

[0008] Furthermore, the upper part of the claw is a right-angled triangular piece. When the claw feeds material along the feeding direction, the vertical right-angled surface of the claw contacts and engages with the side of the electrical connector. When the claw resets from its end, the inclined surface of the right-angled triangular piece presses and engages with the bottom surface of the electrical connector and retracts into the mounting groove.

[0009] Furthermore, the servo motor is mounted on the outside of the support plate via a mounting plate, and the servo motor is connected to the corresponding lead screw via a connector.

[0010] The beneficial effects of this utility model after adopting the above technical solution are as follows: Two parallel feeding structures are provided, each consisting of a lead screw, a lead screw head, a mounting plate, and a pawl. When one feeding structure delivers the electrical connector to the end of its stroke, the second feeding structure begins feeding the second electrical connector based on sensor feedback, without waiting for the first feeding structure to return. The two feeding structures are connected by two linear tracks and two mating mounting plates, preventing collisions during their encounter. This technical solution can shorten the feeding cycle by half and improve the assembly efficiency of electrical connectors. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the intersection of two feeding mechanisms.

[0013] Figure 3 This is a side view of the present invention.

[0014] In the diagram: 1. Support frame; 2. Material channel; 3. Connector housing; 4. Lead screw; 5. Lead screw head; 6. Connecting plate; 7. Mounting plate; 8. Claw; 9. Servo motor; 10. Slider; 11. Linear track; 12. Baffle; 13. Photoelectric sensor. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0016] As shown in the figure, the double claw feeding mechanism for assembling electrical connectors consists of a support frame 1, a horizontal feed channel 2 mounted on the support frame, and two parallel feeding structures mounted on the support frame 1, and is used for feeding long strip-shaped electrical connector housings.

[0017] The support frame 1 consists of a base plate and a pair of vertical support plates mounted on the base plate. A horizontal feed channel 2 is mounted on top of the two vertical support plates. The horizontal feed channel 2 has an opening on one side in its width direction. The connector housing 3 slides within the feed channel 2, and partially extends outward from the side opening of the feed channel. Both ends of the feed channel 2 are connected to the feed channels of the front and rear workstations for assembling the electrical connector.

[0018] The feeding structure includes a lead screw 4, a lead screw head 5, a connecting plate 6, a mounting plate 7, and a claw 8. The two lead screws 4 of the two feeding structures are mounted between a pair of support plates, with the two lead screws 4 parallel and arranged vertically. Both ends of the lead screw are rotatably connected to the corresponding support plates via bearings. One end of the lead screw 4 extends outward from the outside of the support plate and is connected to a servo motor 9. The servo motor 9 is mounted on the outside of the support plate via a mounting plate and is connected to the corresponding lead screw via a connector.

[0019] Each lead screw is equipped with a lead screw head 5, which is threaded into the lead screw 4. A connecting plate 6 is fixedly installed on the front side of the lead screw head 5. Mounting plates 7 are respectively installed at the ends of the connecting plates 6 of each feeding structure. The mounting plates 7 of the two feeding structures are vertically arranged and staggered back and forth in the direction perpendicular to the feeding direction of the electrical connector, and the tops of the two mounting plates 7 are flush. A slider 10 is fixedly installed on each mounting plate 7 or connecting plate 6. A linear track 11 corresponding to each slider 10 is installed between a pair of support plates. The linear track 11 ensures accurate feeding direction and that the lead screw head drives the mounting plate to move linearly along the linear track when the servo motor rotates. The two feeding structures are reversed by multiple connecting plates to realize the spatial misalignment of the actual track and mounting plates, so that the two feeding structures will not interfere when feeding crosswise.

[0020] Each mounting plate has a claw 8 mounted on its top. Two corresponding claws 8 are staggered by 8 with a gap. The function of the claw 8 is to be vertical during feeding, engaging with the side of the connector housing 3 throughout the process and feeding it to the end of the feed channel. During the return reset process, when it encounters the next connector, the claw can retract under force to avoid hard interference affecting the feeding. Therefore, the claw is spring-loaded and mounted in the mounting slot on the top of the mounting plate. The claw installation method is as follows:

[0021] Method 1: The device is installed in the mounting box via a rotating shaft and a torsion spring. It is installed on the side opposite to the feeding direction and has a limit switch. Under normal conditions, the torsion spring keeps the pawl in a vertical position. During feeding, due to the limit switch, the pawl remains vertical and moves the electrical connector. During the return process, when it encounters the next electrical connector, the pawl overcomes the torsion spring force and rotates, returning to the bottom of the electrical connector without interfering with the feeding of the next connector.

[0022] Method 2: The pawl is mounted in the mounting slot via a guide shaft and spring, and moves vertically within the slot. A spring is compressed between the bottom of the pawl and the mounting slot, guiding its extension and retraction through the cooperation of the guide shaft and the vertical groove on the pawl. During feeding, the pawl extends vertically; during reset, it retracts into the mounting slot when it encounters the electrical connector. The upper part of the pawl is a right-angled triangular piece. When the pawl feeds along the feeding direction, the vertical right-angled surface of the pawl contacts and engages with the side of the electrical connector; when the pawl resets from its end, the inclined surface of the right-angled triangular piece presses against the bottom surface of the electrical connector and retracts into the mounting slot.

[0023] Each lead screw head has a baffle 12 fixedly installed on its rear side. The baffle 12 cooperates with the photoelectric sensor 13 on the support frame 1. The photoelectric sensor 13 corresponds to the end position of the feeding stroke. The position sensing of the sensor 13 facilitates the control of feeding.

Claims

1. Double-pushing claw feeding mechanism for electric connector assembly, comprising a support frame, the support frame comprising a bottom plate and a pair of vertical support plates installed on the bottom plate, the top of the two vertical support plates being provided with a horizontal material channel, the two ends of the material channel being communicated with the material channels of the front and rear work stations of the electric connector assembly, characterized in that, Two lead screws are installed between a pair of support plates. The two lead screws are parallel and arranged vertically. Both ends of each lead screw are rotatably connected to the corresponding support plate via bearings. One end of each lead screw extends outward from the support plate and is connected to a servo motor. Each lead screw has a lead screw head that is threaded into the lead screw. A connecting plate is fixedly installed on the front side of each lead screw head, and a mounting plate is fixedly installed on each connecting plate. A slider is fixedly installed on the mounting plate. A linear track corresponding to each slider is installed between the pair of support plates. The servo motor rotates. At the same time, the lead screw head drives the mounting plate to move linearly along the linear track; each mounting plate is equipped with a pawl on its top, which is movably mounted in the mounting groove on the top of the mounting plate by means of a spring. When the mounting plate moves along the feeding direction of the horizontal material channel, the pawl extends out of the mounting groove and is in a vertical position; when the mounting plate moves along the reset direction of the horizontal material channel and encounters the electrical connector, the pawl retracts or rotates against the elastic force of the spring; the two mounting plates are staggered front and back, and the two corresponding pawls are staggered front and back and spaced to cooperate with the part of the electrical connector that extends out of the horizontal material channel.

2. The dual push pawl feed mechanism for electrical connector assembly of claim 1, wherein, The two mounting plates are respectively fixedly connected to the corresponding lead screw head by one or more connecting plates. The two mounting plates are vertically arranged and staggered front to back and fit together in the direction perpendicular to the feeding of the electrical connector. The tops of the two mounting plates are flush, and the two claws are staggered front to back with a gap.

3. The dual push pawl feed mechanism for electrical connector assembly of claim 1, wherein, Each lead screw head is fixedly mounted with a baffle plate, which cooperates with a photoelectric sensor on the support frame. The photoelectric sensor corresponds to the end position of the feeding stroke.

4. The dual push pawl feed mechanism for electrical connector assemblies of claim 1, wherein, The pawl is mounted in the mounting slot on the mounting plate via a rotating shaft and a torsion spring, and rotates within the mounting slot; or the pawl is mounted in the mounting slot via a guide shaft and a spring, and moves vertically within the mounting slot.

5. The dual push pawl feed mechanism for electrical connector assemblies of claim 1, wherein, The upper part of the claw is a right-angled triangular piece. When the claw feeds material along the feeding direction, the vertical right-angled surface of the claw contacts and engages with the side of the electrical connector. When the claw resets from its end, the inclined surface of the right-angled triangular piece presses and engages with the bottom surface of the electrical connector and retracts into the mounting groove.

6. The dual push pawl feed mechanism for electrical connector assemblies of claim 1, wherein, The servo motor is mounted on the outside of the support plate via a mounting plate, and the servo motor is connected to the corresponding lead screw via a connector.

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