A closed-loop continuous assembly machine

Abstract

The present invention discloses a closed-loop continuous assembly machine, which relates to the technical field of insulating terminal preparation, including a frame, on which a terminal circulating conveying mechanism, a sheath circulating conveying mechanism and a circulating assembly mechanism are arranged; the terminal circulating conveying mechanism is close to the sheath circulating conveying mechanism to form a conveying overlap area, and the circulating assembly mechanism is used to press the terminal conveyed to the conveying overlap area and the sheath conveyed to the conveying overlap area, so that the terminal is pressed into the sheath, and the feeding action of the terminal, the feeding action of the sheath and the pressing action of the terminal into the sheath are independently completed by the terminal circulating conveying mechanism, the sheath circulating conveying mechanism and the circulating assembly mechanism, and the circulating conveying mechanism and the sheath circulating conveying mechanism can form a conveying overlap area, and the circulating assembly mechanism presses the terminal into the sheath in the conveying overlap area, which can be used for continuous top pressing assembly during continuous conveying, and can effectively improve production capacity.

Description

Technical Field

[0001] The invention relates to the technical field of insulating terminal preparation, in particular to a closed-loop continuous assembly machine. Background Art

[0002] Insulated terminals are created by applying an insulating sheath to a metal terminal and are widely used in electrical connections for everyday appliances. Currently, mechanical assembly of the insulating sheath to the metal terminal involves intermittent assembly of the metal terminal and the insulating sheath using a motor and a pneumatic cylinder. The cylinder performs both feeding the insulating sheath and clamping the metal terminal in a single motion. This cycle can only push two terminals, resulting in a production capacity of approximately 100 units per minute, resulting in low efficiency. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a closed-loop continuous assembly machine, comprising a frame, on which are provided a terminal circulating conveying mechanism, a sheath circulating conveying mechanism and a circulating assembly mechanism; wherein, the terminal circulating conveying mechanism is close to the sheath circulating conveying mechanism to form a conveying overlap area, and the circulating assembly mechanism is used to press the terminal conveyed to the conveying overlap area and the sheath conveyed to the conveying overlap area, so that the terminal is pressed into the sheath.

[0005] As a further solution of the present invention: a terminal loading area for loading terminals onto a terminal circulating conveying mechanism is also formed on the frame; the terminal circulating conveying mechanism includes a first closed-loop guide rail, a plurality of clamp slides are slidably provided on the first closed-loop guide rail, a material picking clamp for clamping the terminals is provided on the clamp slide, and a sliding force-bearing part is also provided on the clamp slide; the terminal circulating conveying mechanism also includes a first rotating shaft that can be electrically driven, and a cooperating force-applying part cooperating with the sliding force-bearing part is connected to the first rotating shaft.

[0006] As a further solution of the present invention: the sheath circulating conveying mechanism includes a main rotating shaft that can be driven electrically, a sheath positioning wheel is coaxially connected to the main rotating shaft, and a plurality of sheath positioning grooves are arranged on the sheath positioning wheel; in the conveying overlap area formed, the sheath positioning groove corresponds to the chuck of the material picking clamp in the axial direction along the main rotating shaft, so that the terminal clamped by the material picking clamp is aligned with the sheath positioned on the sheath positioning groove in the axial direction along the main rotating shaft.

[0007] As a further solution of the present invention: the circulating assembly mechanism includes a turntable coaxially connected to the main rotating shaft, the turntable is provided with a material ejecting guide rail arranged along the axial direction of the main rotating shaft, the material ejecting slide is slidably provided on the material ejecting guide rail, and the portion of the material ejecting slide close to the sheath positioning wheel is connected to a terminal pressing head; in the conveying overlap area formed, the terminal pressing head corresponds to the sheath positioning groove in the axial direction of the main rotating shaft, and the clamping head of the material picking clamp is located between the sheath positioning groove and the terminal pressing head, so that the terminal pressing head and the terminal clamped by the material picking clamp are aligned with each other in the axial direction of the main rotating shaft;

[0008] The circulating assembly mechanism also includes an adjustment cylinder that coincides with the axis of the main rotating shaft or an extension of the axis. The adjustment cylinder is connected to the frame, and a circumferentially arranged second closed-loop guide rail is provided on one circumferential surface of the adjustment cylinder. In the formed conveying overlap area, the second closed-loop guide rail has a pressing protrusion section along the axial direction of the main rotating shaft and close to the sheath positioning wheel.

[0009] The ejecting slide block is connected with a push rod, and the push rod is connected with an adjusting slide block which is slidably matched with the second closed-loop guide rail.

[0010] As a further solution of the present invention: a clamping arm slide rail is provided on the clamping slide; the material picking clamp includes a clamping arm slide rail, the clamping arm slide rail is connected to a main clamping arm, the main clamping arm is connected to a first clamping member, the main clamping arm is also rotatably connected to a secondary clamping arm, and the secondary clamping arm is connected to a second clamping member that cooperates with the first clamping member to form a clamping head; the clamping opening formed by the first clamping member and the second clamping member has a positive opening direction set along the sliding direction of the clamping arm slide rail, and has a side connecting opening direction set along the axial direction of the main rotating shaft; a first elastic member is provided between the main clamping arm and the secondary clamping arm, which makes the clamping opening formed by the first clamping member and the second clamping member tend to become smaller, and a second elastic member is also provided between the clamping arm slide rail and the clamping slide rail, which makes the clamping arm slide rail tend to slide toward the positive opening direction of the clamping opening.

[0011] As a further solution of the present invention: the terminal circulation conveying mechanism also includes a third closed-loop guide rail adapted to the first closed-loop guide rail, and the third closed-loop guide rail is connected to the frame; the clamping arm slider is connected to a state adjustment slider that slides with the third closed-loop guide rail; the third closed-loop guide rail has an energy storage protrusion section that is located in the front area of ​​the terminal loading area along the unidirectional sliding route of the clamp slider on the first closed-loop guide rail, and the energy storage protrusion section is protruded along the positive opening direction away from the clamping opening; the third closed-loop guide rail also has a cliff release section that is located in the terminal loading area and connected to the energy storage protrusion section, and a release step suitable for the rapid release of the second elastic member after elastic energy storage is formed between the cliff release section and the energy storage protrusion section.

[0012] As a further solution of the present invention: the cooperating force-applying part is a sprocket connected to the first rotating shaft, and the sliding force-bearing part has at least two rollers cooperating with at least two adjacent teeth and grooves of the sprocket.

[0013] As a further solution of the present invention: a terminal loading mechanism for continuously loading terminals to the terminal loading area is further provided on the frame, and the terminal loading mechanism includes a direct vibration feeder and a feeding guide rail cooperating with the direct vibration feeder.

[0014] As a further solution of the present invention: the sheath is a continuous row sheath.

[0015] As a further solution of the present invention: a quality inspection mechanism for performing quality inspection on the assembled insulating terminals is also provided on the rack.

[0016] Compared with the existing technology, the beneficial effects of the present technical solution are: by independently completing the feeding action of the terminal, the feeding action of the sheath, and the pressing action of the terminal into the sheath by the terminal circulating conveying mechanism, the sheath circulating conveying mechanism and the circulating assembly mechanism, and enabling the circulating conveying mechanism and the sheath circulating conveying mechanism to form a conveying overlap area, and the circulating assembly mechanism presses the terminal into the sheath in the conveying overlap area, it can be used for continuous top-pressing assembly in continuous conveying, and the continuous conveying includes the continuous conveying of the terminal by the terminal circulating conveying mechanism and the continuous conveying of the sheath by the sheath circulating conveying mechanism. The continuous top-pressing assembly can continuously press different terminals passing through the conveying overlap area onto different sheaths passing through the conveying overlap area, which can effectively improve production capacity.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural exploded diagram of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the force-applying portion in the present invention;

[0022] Figure 4 It is a structural schematic diagram of the energy storage convex section in the present invention;

[0023] Figure 5 It is a schematic diagram of the position of the terminal loading area in the present invention;

[0024] Figure 6 It is a structural schematic diagram of the first closed-loop guide rail in the present invention;

[0025] Figure 7 It is a structural schematic diagram of the release step in the present invention;

[0026] Figure 8 This is an exploded view of the structure of the material removal clamp in the present invention;

[0027] Figure 9 It is a structural schematic diagram of the material taking clamp in the present invention;

[0028] Figure 10 This is a schematic diagram of the terminal being pressed into the sheath in the present invention;

[0029] Figure 11 It is a schematic diagram of the position of the conveying overlap area in the present invention;

[0030] Figure 12 It is a structural schematic diagram of the cylindrical curve cam (stationary) in the present invention.

[0031] The corresponding reference numerals in the accompanying drawings are described as follows:

[0032] Rack-1, terminal circulation conveying mechanism-2, sheath circulation conveying mechanism-3, circulation assembly mechanism-4, conveying overlap area-5, terminal loading area-6, terminal loading mechanism-7, quality inspection mechanism-8, sheath-9, terminal-10, guard plate-11,

[0033] First closed-loop guide rail 201, clamp slider 202, material clamp 203, sliding force-bearing part 204, first rotating shaft 205, matching force-applying part 206, clamp arm slide rail 207, third closed-loop guide rail 208, state adjustment slider 209,

[0034] Main rotating shaft-301, sheath positioning wheel-302, sheath positioning groove-303, support shaft-304,

[0035] Turntable-401, ejector guide rail-402, ejector slider-403, terminal pressing head-404, adjustment cylinder-405, second closed-loop guide rail-406, push rod-407, adjustment slider-408,

[0036] Clamping arm slider-2031, main clamping arm-2032, first clamping member-2033, auxiliary clamping arm-2034, second clamping member-2035, clamping opening-2036, first elastic member-2037, second elastic member-2038,

[0037] Roller-2041,

[0038] Energy storage raised section-2081, cliff release section-2082, release step-2083,

[0039] Top pressure raised section-4061. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figure 1-12 A closed-loop continuous assembly machine includes a frame 1, on which are provided a terminal circulating conveying mechanism 2, a sheath circulating conveying mechanism 3 and a circulating assembly mechanism 4, wherein the terminal circulating conveying mechanism 2 is close to the sheath circulating conveying mechanism 3 to form a conveying overlap area 5, and the circulating assembly mechanism 4 is used to press the terminal 10 conveyed to the conveying overlap area 5 and the sheath 9 conveyed to the conveying overlap area 5, so that the terminal 10 is pressed into the sheath 9.

[0042] The design realizes that the feeding action of the terminal, the feeding action of the sheath, and the pressing action of the terminal into the sheath are independently completed by the terminal circulating conveying mechanism 2, the sheath circulating conveying mechanism 3 and the circulating assembly mechanism 4, and the circulating conveying mechanism 2 and the sheath circulating conveying mechanism 3 can form a conveying overlap area 5, and the circulating assembly mechanism 4 presses the terminal 10 into the sheath 9 in the conveying overlap area 5. It can be used for continuous top-pressing assembly in continuous conveying. Continuous conveying includes continuous conveying of terminals by the terminal circulating conveying mechanism 2 and continuous conveying of sheaths by the sheath circulating conveying mechanism 3. Continuous top-pressing assembly can continuously press different terminals passing through the conveying overlap area onto different sheaths passing through the conveying overlap area, which can effectively improve production capacity.

[0043] In the embodiment of the present invention, a terminal loading area 6 for loading terminals onto the terminal circulation conveying mechanism 2 is further formed on the frame 1 .

[0044] The terminal circulation conveying mechanism 2 includes a first closed-loop guide rail 201 arranged in a planar manner. A plurality of clamp slides 202 are slidably mounted on the first closed-loop guide rail 201 and arranged in a continuous and adjacent manner. The clamp slides 202 are provided with a material picking clamp 203 for picking up terminals. The clamping head of the material picking clamp 203 faces horizontally outward, oriented horizontally outward relative to the inside and outside of the loop formed by the first closed-loop guide rail 201. The clamp slides 202 are also provided with a sliding force-bearing portion 204. The terminal circulation conveying mechanism 2 also includes a first rotating shaft 205 that can be electrically driven. The first rotating shaft 205 is arranged vertically and is connected to a cooperating force-applying portion 206 that cooperates with the sliding force-bearing portion 204.

[0045] The sheath circulation conveying mechanism 3 includes a main rotating shaft 301 that can be driven electrically. The main rotating shaft 301 is arranged up and down. A sheath positioning wheel 302 is coaxially connected to the main rotating shaft 301. The outer ring of the sheath positioning wheel 302 has multiple sheath positioning grooves 303. The multiple sheath positioning grooves 303 are arranged at intervals. The sheath positioning grooves 303 have horizontal outward openings and downward openings.

[0046] In the formed conveying overlap area 5, the sheath positioning groove 303 corresponds to the clamping head of the material picking clamp 203 along the axial direction of the main rotation axis 301. Specifically, the sheath positioning groove 303 is located above the clamping head of the material picking clamp 203, so that the terminal clamped by the material picking clamp 203 is vertically opposite to the sheath positioned in the sheath positioning groove 303.

[0047] The circulating assembly mechanism 4 includes a turntable 401 coaxially connected to the main rotating shaft 301, and the turntable 401 is provided with a lifting guide rail 402 arranged along the axial direction of the main rotating shaft 301, that is, an up and down guide arrangement, and a lifting slider 403 is slidingly provided on the lifting guide rail 402, and the position of the lifting slider 403 close to the sheath positioning wheel 302 is connected to the terminal pressing head 404.

[0048] In the conveying overlap area 5, the terminal pressing head 404 corresponds to the sheath positioning groove 303 along the axial direction of the main rotation axis 301, and the clamping head of the material picking clamp 203 is located between the sheath positioning groove 303 and the terminal pressing head 404. Specifically, the terminal pressing head 404 is located below the clamping head of the material picking clamp 203, so that the terminal pressing head 404 is opposite to the terminal clamped by the material picking clamp 203 above.

[0049] The circulating assembly mechanism 4 further includes an adjustment cylinder 405 that coincides with the axis of the main rotating shaft 301 or an extension of the axis. The adjustment cylinder 405 is connected to the frame 1. Coincidence means that the axis of the main rotating shaft 301 or an extension of the axis coincides with the axis of the adjustment cylinder 405. The adjustment cylinder 405 is located below the sheath positioning wheel 302.

[0050] A circumferentially arranged second closed-loop guide rail 406 is provided on one circumferential surface of the regulating cylinder 405. In the formed conveying overlap area 5, the second closed-loop guide rail 406 has a pressing protrusion section 4061 along the axial direction of the main rotating shaft 301 and close to the sheath positioning wheel 302.

[0051] The ejecting slider 403 is connected to a push rod 407 , and the push rod 407 is connected to an adjusting slider 408 that is slidably engaged with the second closed-loop guide rail 406 .

[0052] The second closed-loop guide rail 406 can be set on the outer circumference of the adjustment cylinder 405, or on the inner circumference of the adjustment cylinder 405. Usually, setting it on the outer circumference is more conducive to its assembly and observation, while setting it on the inner circumference is more conducive to protecting its sliding components.

[0053] When the main rotating shaft 301 rotates, the sheath positioning wheel 302 and the turntable 401 are driven to rotate. When the turntable 401 rotates, the adjusting slider 408 slides on the second closed-loop guide rail 406 of the adjusting cylinder which is relatively stationary with the turntable, and when the adjusting slider 408 slides to the pressing protrusion section 4061, the terminal pressing head 404 is driven by the push rod 407 and the pushing slider 403 along the axial direction of the main rotating shaft 301 to approach the sheath positioning groove 303, so as to perform the preset function: the terminal clamped by the material picking clamp 203 is pressed into the sheath positioned in the sheath positioning groove 303 along the axial direction of the main rotating shaft 301 by the terminal pressing head 404, that is, it is pressed upward.

[0054] like Figure 12 As shown, the adjusting cylinder and the second closed-loop guide rail with the pressing protrusion section can also be collectively referred to as a cylindrical curve cam.

[0055] The sleeves can be continuously loaded onto the sleeve positioning wheel via a preset area on the frame, and the preset area can be named a sleeve loading area (not shown).

[0056] Furthermore, a clamp arm slide rail 207 is provided on the clamp slider 202 , and the material picking clamp 203 includes a clamp arm slide rail 2031 slidably provided on the clamp arm slide rail 207 , and the clamp arm slide rail 2031 slides horizontally outward or horizontally inward on the clamp arm slide rail 207 .

[0057] The clamping arm slider 2031 is connected to a main clamping arm 2032, and the corresponding horizontal outward outer end of the main clamping arm 2032 is connected to a first clamping member 2033. The main clamping arm 2032 is also rotatably connected to a secondary clamping arm 2034, and the secondary clamping arm 2034 is connected to a second clamping member 2035 that cooperates with the first clamping member 2033 to form a clamp.

[0058] The clamping opening 2036 formed by the first clamping member 2033 and the second clamping member 2035 has a positive opening direction set along the sliding direction of the clamping arm slider 2031, and has a side communication opening direction set along the axial direction of the main rotating shaft 301, such as Figure 9 As shown, the main opening direction is horizontally outward, and the side connecting opening direction is up and down.

[0059] It can be understood that the auxiliary clamping arm 2034 is rotatably connected to the main clamping arm 2032 via a pin shaft, and the pin shaft is also arranged up and down.

[0060] A first elastic member 2037 is disposed between the main clamping arm 2032 and the auxiliary clamping arm 2034 to reduce the clamping opening formed by the first clamping member 2033 and the second clamping member 2035. The first elastic member 2037 may be a compression spring that cooperates with the distal end of the main clamping arm away from the first clamping member and the distal end of the auxiliary clamping arm away from the second clamping member to press against the clamping member.

[0061] A second elastic member 2038 is further provided between the clamp arm slider 2031 and the clamp slider 202 to cause the clamp arm slider 2031 to slide in the normal opening direction of the clamp opening 2036. The second elastic member 2038 may be a tension spring, one end of which is connected to the clamp arm slider and the other end of which is connected to the clamp slider along the normal opening direction of the clamp opening.

[0062] Furthermore, the terminal circulation conveying mechanism 2 also includes a third closed-loop guide rail 208 adapted to the first closed-loop guide rail 201. The third closed-loop guide rail 208 is connected to the frame 1, and the clamping arm slider 2031 is connected to a state adjustment slider 209 that slides with the third closed-loop guide rail 208.

[0063] The third closed-loop guide rail 208 has an energy storage protrusion section 2081 located in the front area of ​​the terminal loading area 6 along the unidirectional sliding route of the clamp slider 202 on the first closed-loop guide rail 201. The energy storage protrusion section 2081 is protruded along the positive opening direction away from the clamping opening 2036, that is, it protrudes horizontally inward.

[0064] The third closed-loop guide rail 208 also has a cliff release section 2082 located in the terminal loading area 6 and connected to the energy storage protrusion section 2081, and a release step 2083 suitable for the second elastic member 2038 to quickly release after elastic energy storage is formed between the cliff release section 2082 and the energy storage protrusion section 2081.

[0065] When the first rotating shaft 205 rotates and applies force to the sliding force-bearing part through the cooperating force-applying part 206 to make the clamp slider 202 slide unidirectionally on the first closed-loop guide rail 201, the third closed-loop guide rail 208 is stationary relative to the clamp slider 202, so that when the clamp slider 202 slides, the state adjustment slider 209 is guided by the third closed-loop guide rail 208, thereby driving the clamp arm slider 2031 to slide on the clamp arm slide rail 207 of the clamp slider, and when the state adjustment slider 209 reaches the energy storage protrusion section 2081 of the third closed-loop guide rail, the state adjustment slider 209 is guided by the energy storage protrusion section 2081 to drive the clamp arm slider 2031 to slide on the clamp arm slide rail 207 of the clamp slider along the positive opening direction away from the clamping opening, causing the second elastic member 2038 to produce elastic deformation or aggravated elastic deformation, forming elastic energy storage of the second elastic member 2038.

[0066] Thereafter, when the state adjustment slider 209 continues to reach the cliff release section 2082, due to the air-avoiding setting of the release step 2083, the elastic storage of the second elastic member 2038 can be quickly released, and the second elastic member 2038 performs elastic deformation recovery to drive the clamping arm slider 2031 to slide quickly on the clamping arm slide rail 207 of the clamping slider in the positive opening direction toward the clamping opening.

[0067] The above-mentioned rapid sliding enables the clamping head of the material picking clamp 203 to perform a catapult-like action in the terminal loading area 6. The catapult action is used to enable the terminal located in the terminal loading area 6 to be ejected from the fork by the clamping head, and under the action of potential energy, the terminal can correspondingly expand the clamping opening of the clamping opening 2036, so that the terminal is pressed between the first clamping member 2033 and the second clamping member 2035. At this time, the clamping opening of the clamping opening 2036 is expanded, causing the first elastic member 2037 to produce corresponding elastic deformation or aggravated elastic deformation, so that the first clamping member 2033 and the second clamping member 2035 can have the force provided by the first elastic member 2037 to react to clamp the terminal.

[0068] Then, the clamp slider 202 continues to slide on the first closed-loop guide rail 201, so that the clamped terminal 10 can be driven to the conveying overlap area 5 to perform the preset: the terminal located in the terminal loading area is clamped and conveyed to the conveying overlap area by the terminal circulation conveying mechanism.

[0069] At the conveying overlap area, the terminal pressing head presses the terminal, allowing the terminal to open from the side of the clamping opening and disengage the clamping head. The terminal is finally pressed into or partially penetrated into the sheath, completing the assembly of the terminal and the sheath. This cycle is suitable for continuously clamping terminals and conveying them to the conveying overlap area, and for continuous pressing and assembly.

[0070] The electrically drivable first rotating shaft 205 may be driven by a motor. By controlling the rotation of the motor, the first rotating shaft can generate the controlled rotation representing the aforementioned "electrical drive". The first rotating shaft is axially connected to the rotating output shaft of the motor.

[0071] Similarly, the electrically driven main rotating shaft 301 can be driven by a motor. By controlling the rotation of the motor, the main rotating shaft can generate the controlled rotation representing the above-mentioned "electric drive". The main rotating shaft and the rotating output shaft of the motor are axially connected.

[0072] The motor for electrically driving the first rotating shaft 205 and the motor for electrically driving the main rotating shaft 301 can be the same motor or different motors. The whole can be electrically driven by one motor or two motors without the involvement of cylinders, which has better stability.

[0073] The improved system only requires electrically driving the first rotating shaft 205 and the main rotating shaft 301 to simultaneously achieve continuous clamping and delivery of the terminal to the conveying overlap zone, continuous positioning and delivery of the sheath to the conveying overlap zone, and continuous press assembly. This allows for simultaneous continuous assembly operations using fewer drive sources, reduces energy consumption, and achieves assembly efficiency over three times that of existing technologies. Continuous assembly using this continuous assembly machine has been measured to achieve speeds of 400 pieces per minute or more.

[0074] In the embodiment of the present invention, the cooperating force applying portion 206 may be a sprocket connected to the first rotating shaft 205 , and the sliding force receiving portion 204 has at least two rollers 2041 cooperating with at least two adjacent teeth and grooves of the sprocket.

[0075] Since multiple clamp sliders 202 are arranged closely together, multiple sliding force-bearing parts 204 can form a split chain structure on the first closed-loop guide rail 201. When there is no force contact with the cooperating force-applying part 206, the clamp slider can cooperate with the force of the cooperating force-applying part 206 through the sliding force-bearing parts of other clamp sliders, thereby generating power to continue sliding on the first closed-loop guide rail 201, so as to achieve the purpose of circular sliding.

[0076] In this case, the conveying overlap area 5 and the terminal loading area 6 can also be set to deviate from the matching range of the matching force applying portion 206 to avoid mutual interference between the structures.

[0077] The cooperating force-applying part 206 of the sprocket and the multiple sliding force-bearing parts 204 that can form a split chain structure can more accurately ensure the sliding position of each clamp slider 202, thereby more accurately clamping and loading in the terminal loading area 6 and aligning the terminal with the sheath in the conveying overlap area 5.

[0078] The design of the split chain structure can also enable the gap between the sliders of each clamp to be fine-tuned while achieving the above-mentioned effect, thereby reducing the risk of the first closed-loop guide rail 201 getting stuck.

[0079] In the embodiment of the present invention, in order to meet the requirement of continuously placing the terminals in the terminal loading area without manual labor, a terminal loading mechanism 7 is provided for continuously loading the terminals into the terminal loading area.

[0080] The terminal loading mechanism 7 includes a direct vibration feeder and a feeding guide rail matched with the direct vibration feeder, so that the terminals are fed to the terminal loading area in a specified direction and speed.

[0081] In the embodiment of the present invention, the sheath 9 can be a continuous row of sheaths, which are continuously driven by the sheath positioning wheel 302. Within the limited length of the continuous row of sheaths, the sheaths only need to be loaded once.

[0082] Preferably, a guard plate 11 is installed on the frame 1. The guard plate 11 is used to prevent the sheath 9 from falling out of the sheath positioning groove 303 when the sheath positioning wheel 302 applies force to the sheath 9 through the wall of the sheath positioning groove 303. It can also be used to prevent the sheath 9 from falling out of the sheath positioning groove 303 when the terminal is pressed.

[0083] More preferably, a support shaft 304 is connected to the mounting frame, and the main rotating shaft is a hollow rotating shaft sleeved on the support shaft 304. When the main rotating shaft rotates, the support shaft 304 is stationary relative to the main rotating shaft, that is, the support shaft can also serve as a rotating support for the main rotating shaft; the guard plate is connected to the support shaft, and when the main rotating shaft rotates, the guard plate is also stationary relative to the main rotating shaft.

[0084] In the embodiment of the present invention, a quality inspection mechanism 8 for performing quality inspection on the assembled insulating terminals is further included. The quality inspection mechanism 8 can perform continuous quality inspection on the continuous insulating terminals obtained by using the continuous sheaths.

[0085] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A closed-loop continuous assembly machine, characterized in that: The machine comprises a frame on which a terminal circulation conveying mechanism, a sheath circulation conveying mechanism and a circulation assembly mechanism are arranged; The terminal circulating conveying mechanism is close to the sheath circulating conveying mechanism to form a conveying overlap area, and the circulating assembly mechanism is used to press the terminal conveyed to the conveying overlap area by the terminal circulating conveying mechanism and the sheath conveyed to the conveying overlap area by the sheath circulating conveying mechanism, so that the terminal is pressed into the sheath; The frame is also formed with a terminal loading area for loading the terminals onto the terminal circulation conveying mechanism; The terminal circulation conveying mechanism includes a first closed-loop guide rail, on which a plurality of clamp slides are slidably provided, the clamp slides are provided with a material picking clamp for clamping the terminals, and the clamp slides are also provided with a sliding force-bearing part; The terminal circulation conveying mechanism further includes a first rotating shaft that can be driven electrically, and a matching force-applying portion that cooperates with the sliding force-bearing portion is connected to the first rotating shaft; The sheath circulation conveying mechanism includes a main rotating shaft that can be driven electrically, a sheath positioning wheel is coaxially connected to the main rotating shaft, and a plurality of sheath positioning grooves are arranged on the sheath positioning wheel; In the conveying overlap area, the sheath positioning groove corresponds to the clamping head of the material picking clamp in the axial direction along the main rotation axis, so that the terminal clamped by the material picking clamp is aligned with the sheath positioned on the sheath positioning groove in the axial direction along the main rotation axis; The circulating assembly mechanism includes a turntable coaxially connected to the main rotating shaft, the turntable is provided with a lifting guide rail arranged along the axial direction of the main rotating shaft, the lifting guide rail is slidably provided with a lifting slider, and the part of the lifting slider close to the sheath positioning wheel is connected to the terminal pressing head.

2. A closed-loop continuous assembly machine according to claim 1, characterized in that: In the conveying overlap area, the terminal pressing head corresponds to the sheath positioning groove in the axial direction along the main rotation axis, and the clamping head of the material picking clamp is located between the sheath positioning groove and the terminal pressing head, so that the terminal pressing head and the terminal clamped by the material picking clamp are aligned with each other in the axial direction along the main rotation axis; The circulating assembly mechanism also includes an adjustment cylinder that coincides with the axis of the main rotating shaft or an extension of the axis. The adjustment cylinder is connected to the frame, and a second closed-loop guide rail is circumferentially arranged on one side of the circumferential surface of the adjustment cylinder. In the formed conveying overlap area, the second closed-loop guide rail has a pressing protrusion section along the axial direction of the main rotating shaft and close to the sheath positioning wheel; The ejecting slide block is connected with a push rod, and the push rod is connected with an adjusting slide block which is slidably matched with the second closed-loop guide rail.

3. A closed-loop continuous assembly machine according to claim 1 or 2, characterized in that: A clamp arm slide rail is provided on the clamp slide; The material picking clamp includes a clamp arm slider slidably arranged on a clamp arm slide rail, the clamp arm slider is connected to a main clamp arm, the main clamp arm is connected to a first clamping member, the main clamp arm is rotatably connected to a secondary clamp arm, the secondary clamp arm is connected to a second clamping member that cooperates with the first clamping member to form a clamping head; The clamping opening formed by the first clamping member and the second clamping member has a positive opening direction arranged along the sliding direction of the clamping arm slider, and has a side communication opening direction arranged along the axial direction of the main rotating shaft; A first elastic member is provided between the main clamping arm and the auxiliary clamping arm to make the clamping opening formed by the first clamping member and the second clamping member tend to become smaller, and a second elastic member is also provided between the clamping arm slider and the clamp slider to make the clamping arm slider tend to slide toward the positive opening direction of the clamping opening.

4. A closed-loop continuous assembly machine according to claim 3, characterized in that: The terminal circulation conveying mechanism further includes a third closed-loop guide rail adapted to the first closed-loop guide rail, and the third closed-loop guide rail is connected to the frame; The clamping arm slider is connected to a state adjustment slider that is slidably matched with the third closed-loop guide rail; The third closed-loop guide rail has an energy storage protrusion section located in a region preceding the terminal loading area along a unidirectional sliding path of the clamp slider on the first closed-loop guide rail, the energy storage protrusion section being protruded in a direction away from the positive opening of the clamping opening; The third closed-loop guide rail also has a cliff release section located in the terminal loading area and connected to the energy storage protrusion section, and a release step suitable for the second elastic member to quickly release after elastic energy storage is formed between the cliff release section and the energy storage protrusion section.

5. A closed-loop continuous assembly machine according to claim 1, 2 or 4, characterized in that: The cooperating force-applying part is a sprocket connected to the first rotating shaft, and the sliding force-bearing part is provided with at least two rollers cooperating with at least two adjacent tooth grooves of the sprocket.

6. A closed-loop continuous assembly machine according to claim 1, 2 or 4, characterized in that: The rack is also provided with a terminal loading mechanism for continuously loading the terminals to the terminal loading area. The terminal loading mechanism includes a direct vibration feeder and a feeding guide rail matched with the direct vibration feeder.

7. A closed-loop continuous assembly machine according to claim 1, 2 or 4, characterized in that: The sheath is a continuous row sheath.

8. The closed-loop continuous assembly machine according to claim 7, characterized in that: The rack is also provided with a quality inspection mechanism for performing quality inspection on the assembled insulating terminals.

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