A double-headed terminal inserting machine

Abstract

The present invention provides a double-headed terminal inserting and sheathing machine, which includes a frame. A clamp turntable mechanism, a mounting frame, a wire cutting and stripping mechanism, two sets of first sheathing devices, one set of second sheathing devices and a discharging mechanism are arranged on the frame. The mounting frame is arranged on the front side of the clamp turntable mechanism. The wire cutting and stripping mechanism is installed in the middle of the mounting frame. The two sets of first sheathing devices are respectively arranged on the left side and the right side of the wire cutting and stripping mechanism. Each set of first sheathing devices includes a multi-wire conveying mechanism, a first terminal stamping mechanism and a first terminal and sleeve assembling mechanism. The two multi-wire conveying mechanisms alternately stay at the wire cutting and stripping mechanism to perform cutting, stripping of the inner end of the wire and cutting of the outer end. The second sheathing device includes a wire stripping mechanism, a second terminal stamping mechanism and a second terminal and sleeve assembling mechanism. The discharging mechanism is arranged behind the second terminal and sleeve assembling mechanism. This double-headed terminal inserting and sheathing machine realizes synchronous terminal crimping and sheathing assembly for both ends of the wire, and the production efficiency is doubled.

Description

Technical Field

[0001] The present invention belongs to the technical field of machinery, and particularly relates to a double-headed terminal inserting machine. Background Art

[0002] In the prior art, a terminal inserting machine is used to press-fit a terminal and a wire together, and then a jacket is sleeved. The existing terminal crimping machine can only realize the assembly of a single wire or two wires with a terminal, and cannot realize the assembly of three or more wires with a terminal. The difficulties are as follows: The assembly of three or more wires requires the control of multiple reset mechanisms, which has a complex structure and occupies a large space; when performing terminal crimping, it is difficult to clamp and is prone to displacement, and it is inconvenient to correct the terminal crimping; it is inconvenient to convey and clamp on the workbench, and it is easy to cause missing clamping and missing soldering of a single wire during conveying and operation at each station. For this reason, the applicant designed a multi-wire terminal inserting and assembling machine [Application No. CN201922191397.8; Publication No. CN210668947U]. The assembling machine includes a frame, and a divider turntable that can intermittently rotate is arranged on the frame. It also includes a multi-wire conveying mechanism, a terminal stamping mechanism, a terminal inserting and assembling mechanism, and a discharging mechanism that are sequentially arranged on the periphery of the divider turntable. The multi-wire conveying mechanism includes a main wire feeding wheel and at least three sets of auxiliary wire feeding components. Each set of auxiliary wire feeding components is adapted to the main wire feeding wheel and is used to convey a wire. A cutting, stripping and wire skin removing mechanism is also arranged between the multi-wire conveying mechanism and the divider turntable for simultaneously cutting, stripping and removing the wire skins at the inner ends of multiple wires. A cutting and stripping mechanism is also arranged between the multi-wire conveying mechanism and the terminal stamping for simultaneously cutting and stripping the outer ends of multiple wires. Although the above-mentioned assembling machine solves the problems of crimping and inserting sleeves for multi-wire terminals, it is found in actual use that it has the following defects: In one round of operation, the assembling machine can only perform terminal crimping and inserting sleeve operations on the outer ends of the wires. After completing the terminal crimping and inserting sleeve operations on the outer ends of the wires, it is necessary to reload the materials, convert the inner ends and outer ends of the wires, and make the inner ends become the outer ends before performing the second round of terminal crimping and inserting sleeve operations. The process is complicated and cannot meet the production requirements. In addition, in one round of operation, the time consumption of each mechanism varies greatly. When a part of the mechanisms complete one operation, there is redundancy in the time of another part of the mechanisms, and they are in a waiting state, resulting in the whole machine not being in the optimal working state, and there is room for improvement in work efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a double-headed terminal inserting machine, and the technical problem it needs to solve is how to realize the terminal crimping and inserting sleeve operations on the inner ends and outer ends of the wires in one round of operation to improve work efficiency.

[0004] The purpose of the present invention can be achieved through the following technical solutions: a double-head terminal shell plugging machine, including a frame, on which a clamp turntable mechanism that can rotate intermittently is arranged, characterized in that the frame is also provided with a mounting frame, a wire cutting and stripping mechanism, two sets of first shell plugging devices, a set of second shell plugging devices and a discharging mechanism, the mounting frame is arranged on the front side of the clamp turntable mechanism, the wire cutting and stripping mechanism is installed in the middle of the mounting frame near the clamp turntable mechanism, and the two sets of first shell plugging devices are respectively arranged on the left and right sides of the wire cutting and stripping mechanism; each set of first shell plugging devices includes a multi-line conveyor slidably connected to the bottom of the mounting frame The multi-wire conveying mechanism can slide back and forth and stop from the cutting and stripping mechanism to the first terminal sleeve assembly mechanism; the multi-wire conveying mechanisms of the two sets of first plug shell devices alternately stay at the cutting and stripping mechanism to cut, strip and cut the inner end of the wire and the outer end; the second plug shell device includes a stripping mechanism, a second terminal stamping mechanism and a second terminal sleeve assembly mechanism located at the rear side of the mounting frame and arranged sequentially around the clamp turntable mechanism, and the discharging mechanism is arranged behind the second terminal sleeve assembly mechanism.

[0005] In the above-mentioned double-head terminal shell inserting machine, two screws and two driving motors are provided under the mounting frame, the two screws are arranged in parallel along the left-right direction, and the two driving motors are respectively arranged at the left and right ends of the mounting frame. The output shaft of each driving motor is coaxially connected to a screw, and the multi-line conveying mechanisms of the two sets of the first shell inserting devices are respectively screwed on a screw.

[0006] In the above-mentioned double-head terminal shell inserting machine, the multi-wire conveying mechanism includes a base, a conveying frame, a wire feeding motor, a wire feeding wheel group, at least three groups of auxiliary wire feeding assemblies and a slide rail pushing assembly. A first slide rail parallel to the screw is also provided under the mounting frame. The base and the screw are threaded and slidably connected to the first slide rail. The slide rail pushing assembly is installed on the base and the pushing direction of the slide rail pushing assembly is the same as the wire feeding direction. The conveying frame is slidably connected to the slide rail pushing assembly. The wire feeding wheel group and the auxiliary wire feeding assembly are installed on the conveying frame. Each group of auxiliary wire feeding assemblies is adapted to the wire feeding main wheel and is used to convey a wire. The wire feeding wheel group is connected to the wire feeding motor through a pulley.

[0007] In the above-mentioned double-head terminal shell inserter, the slide rail pushing assembly is composed of a second slide rail, a pushing motor and a pushing screw. The second slide rail is fixedly connected above the base and is perpendicular to the direction of the first slide rail; the pushing motor is a servo motor, which is installed on the base; the pushing screw and the motor shaft of the servo motor are coaxially connected, and the axis of the pushing screw is parallel to the length direction of the second slide rail.

[0008] In the above-mentioned double-head terminal shell inserting machine, a clearance hole for allowing the screw rod in another set of the first shell inserting device to pass through is provided on the base of each of the multi-line conveying mechanisms.

[0009] In the above-mentioned double-end terminal shell inserting machine, the number of the auxiliary wire feeding assemblies is 3 to 8, and the wire feeding wheel assembly is provided with wire feeding grooves corresponding to the number of the auxiliary wire feeding assemblies.

[0010] In the above-mentioned double-end terminal shell inserting machine, the wire cutting and stripping mechanism includes an upper knife holder, a lower knife holder, an upper knife holder guide rail, a cutting knife assembly, a stripping knife assembly, a lower knife holder guide rail, a guide rail connecting plate, a guide rail seat, a first driving connecting rod and a wire skin recovery tube, the upper knife holder is installed on the upper knife holder guide rail, the lower knife holder is installed on the lower knife holder guide rail, the upper knife holder guide rail and the lower knife holder guide rail are both vertically slidably connected to the guide rail seat, the middle part of the guide rail connecting plate is hinged on the guide rail seat, and the two ends of the guide rail connecting plate are respectively hinged on the upper knife holder. The middle part of the upper knife frame guide rail and the lower knife frame guide rail, the upper end of the first driving connecting rod is connected to the bottom of the upper knife frame or the lower knife frame, the lower end of the first driving connecting rod is used to connect the driving shaft, the cutting knife assembly includes an upper cutting knife and a lower cutting knife, the stripping knife assembly includes an upper stripping knife and a lower stripping knife, the upper cutting knife and the upper stripping knife are jointly connected to the upper knife frame, the lower cutting knife and the lower stripping knife are jointly connected to the lower knife frame, the wire skin recovery pipe has a trumpet-shaped receiving port, the receiving port is connected to the lower part of the lower knife frame and is located between the lower cutting knife and the lower stripping knife.

[0011] In the above-mentioned double-head terminal shell inserting machine, the wire cutting and stripping mechanism also includes a wire skin pushing piece and a wire skin pushing cylinder. The wire skin pushing cylinder is installed on the upper knife holder with its push rod facing downward. The wire skin pushing piece is connected to the push rod of the wire skin pushing cylinder. The wire skin pushing piece is located between the upper cutting knife and the upper stripping knife.

[0012] In the above-mentioned double-head terminal shell inserting machine, a group of terminal feeding mechanisms are respectively provided at both ends of the mounting frame, and the terminal feeding mechanism includes a terminal frame, a terminal strip reel, a guide plate, a waste paper recovery reel and a feeding guide tube, the terminal strip reel is arranged on the top of the terminal frame, the waste paper recovery reel is arranged in the middle of the terminal frame and below the terminal strip reel, the waste paper recovery reel is coaxially connected with a winding motor, the guide plate is arranged on the side of the waste paper recovery reel, and a guide rod for limiting the terminal strip is provided on the guide plate, the inlet end of the feeding guide tube is arranged below the guide plate, and the outlet end of the feeding guide tube is close to the feeding port of the first terminal stamping mechanism close to the terminal feeding mechanism.

[0013] In the above-mentioned double-head terminal inserting and sheathing machine, an after-sheathing detection mechanism is provided between the second terminal sheathing assembling mechanism and the discharging mechanism. The after-sheathing detection mechanism includes a first detection support, a second detection support, multiple detection strips, a second driving link, a first swing rod, a second swing rod, a bearing, a tension spring, and a proximity switch. The multiple detection strips are arranged in parallel, and the front end of each detection strip is hinged to the upper end of the first detection support. The second detection support is arranged on the side of the first detection support away from the clamp turntable mechanism. The proximity switch is arranged on the upper end of the second detection support. The tail end of each detection strip is located above the proximity switch. The tail of each detection strip is connected to the middle of the second detection support through a tension spring. The first swing rod is hinged to the first detection support and is located below the detection strips. The second swing rod is vertically arranged in the middle of the first swing rod. The bearing is rotatably arranged on the upper end of the second swing rod. The upper end of the second driving link is connected to the first swing rod, and the lower end of the second driving link is used to connect to the drive shaft.

[0014] Compared with the prior art, the double-head terminal inserting and sheathing machine has the following advantages: 1. By sharing the wire cutting and stripping mechanism between two sets of inner-end sheathing devices for alternating wire cutting and stripping, then independently crimping the terminals and sheathing the parts, and then feeding the wire to the clamp turntable mechanism, it saves the layout space of each mechanism and improves the efficiency of terminal crimping and sheathing of the inner end of the wire. Thus, it can seamlessly match the processing procedures of each component of the inner-end sheathing device with those of the outer-end sheathing device, avoid a certain component being in a standby state, achieve continuous processing, and improve the processing efficiency; 2. The method of using a motor to drive a screw to drive two sets of multi-wire conveying mechanisms to reciprocate is convenient for controlling the cooperation of the two sets of mechanisms and improves the work efficiency; 3. It realizes that in one round of processing procedures, both the inner end and the outer end of the wire can be terminal-crimped and sheathed, solves the problem that the prior art can only process one end of the wire, and improves the processing efficiency. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the double-head terminal inserting and sheathing machine of the embodiment.

[0016] Figure 2 is a schematic diagram of the layout positions of the mechanisms on the terminal mounting rack of the embodiment.

[0017] Figure 3 is a schematic structural diagram of the multi-wire conveying mechanism of the embodiment.

[0018] Figure 4 is Figure 3 an enlarged view of part A of

[0019] Figure 5 is a schematic structural diagram of the terminal feeding mechanism.

[0020] Figure 6Schematic diagram of the structure of the wire cutting and stripping mechanism of the embodiment.

[0021] Figure 7 It is a structural schematic diagram of the post-insertion detection mechanism of the embodiment.

[0022] In the figure, 1, frame; 2, clamp turntable mechanism; 3, mounting frame; 4, wire cutting and stripping mechanism; 5, discharging mechanism; 6, multi-wire conveying mechanism; 7, first terminal stamping mechanism; 8, first terminal plug sleeve assembly mechanism; 9, screw; 10, driving motor; 11, wire stripping mechanism; 12, second terminal stamping mechanism; 13, second terminal plug sleeve assembly mechanism; 14, base; 15, conveying frame; 16, wire feeding motor; 17, wire feeding wheel group; 18, auxiliary wire feeding assembly; 19, slide rail pushing assembly; 20, first slide rail; 21, clearance hole; 22, second slide rail; 23, pushing motor; 24, pushing screw; 25, pulley; 26, driving wheel; 27, pressure wheel; 28, wire feeding groove; 29, guide nozzle; 30, guide tube; 31, lead tube; 32, terminal feeding mechanism; 33, terminal frame; 34 , terminal strip reel; 35, guide plate; 36, waste paper recycling reel; 37, feed guide tube; 38, reeling motor; 39, guide rod; 40, upper knife holder; 41, lower knife holder; 42, upper knife holder guide rail; 43, cutter assembly; 44, stripper assembly; 45, lower knife holder guide rail; 46, guide rail connecting plate; 47, guide rail seat; 48, first drive connecting rod; 49, wire skin recycling tube; 50, upper cutter ; 51. Lower cutting knife; 52. Upper stripping knife; 53. Lower stripping knife; 54. Storage port; 55. Wire skin pushing piece; 56. Wire skin pushing cylinder; 57. Post-insertion detection mechanism; 58. First detection bracket; 59. Second detection bracket; 60. Detection strip; 61. Second driving connecting rod; 62. First swing arm; 63. Second swing arm; 64. Bearing; 65. Tension spring; 66. Proximity switch; 67. Lead frame. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1-2As shown in the figure, this double - headed terminal inserting and sheathing machine includes a frame 1. On the frame 1, there is a clamp turntable mechanism 2 that can rotate intermittently. The frame 1 is also provided with a mounting frame 3, a wire cutting and stripping mechanism 4, two sets of first sheathing devices, one set of second sheathing devices, and a discharging mechanism 5. The mounting frame 3 is arranged on the front side of the clamp turntable mechanism 2. The wire cutting and stripping mechanism 4 is installed on the middle part of the mounting frame 3, close to one side of the clamp turntable mechanism 2. The two sets of first sheathing devices are respectively arranged on the left and right sides of the wire cutting and stripping mechanism 4. Each set of the first sheathing device includes a multi - wire conveying mechanism 6 slidably connected below the mounting frame 3, and a first terminal stamping mechanism 7 and a first terminal - sleeve assembling mechanism 8 arranged from the wire cutting and stripping mechanism 4 towards the end of the mounting frame 3. Specifically, there are two screw rods 9 and two driving motors 10 below the mounting frame 3. The two screw rods 9 are arranged in parallel in the left - right direction. The two driving motors 10 are respectively arranged at the left and right ends of the mounting frame 3. The output shaft of each driving motor 10 is coaxially connected to a screw rod 9. The multi - wire conveying mechanisms 6 of the two sets of first sheathing devices are respectively screwed onto one screw rod 9. The multi - wire conveying mechanism 6 can reciprocally slide and stop from the wire cutting and stripping mechanism 4 to the first terminal - sleeve assembling mechanism 8 under the drive of the driving motor 10. The multi - wire conveying mechanisms 6 of the two sets of first sheathing devices alternately stay at the wire cutting and stripping mechanism 4 to cut and strip the inner ends of the wires and cut the outer ends. The second sheathing device includes a wire stripping mechanism 11, a second terminal stamping mechanism 12, and a second terminal - sleeve assembling mechanism 13 that are located at the rear side of the mounting frame 3 and are sequentially arranged around the clamp turntable mechanism 2. The discharging mechanism 5 is arranged after the second terminal - sleeve assembling mechanism 13. By alternately using the wire cutting and stripping mechanism 4 for the inner ends of the wires, the time difference is fully utilized. In this way, the two sets of first sheathing devices can alternately cut and strip the inner ends of the wires, and then use the multi - wire conveying mechanism 6 to sequentially complete the terminal crimping connection and sleeve assembly of the inner ends of the wires. After completion, the assembled wires are moved back to the wire cutting and stripping mechanism 4 by the multi - wire conveying mechanism 6 and sent to the clamp turntable mechanism 2, so that the inner ends of the wires extend into the inside of the clamp turntable mechanism 2 and are clamped. Then, the wires are cut again by the wire cutting and stripping mechanism 4. After cutting, the outer ends of the wires face outwards and rotate with the clamp turntable mechanism 2 to the wire stripping mechanism 11 for outer - end wire stripping, rotate to the second terminal stamping mechanism 12 for outer - end terminal crimping connection, and rotate to the second terminal - sleeve assembling mechanism 13 for outer - end sleeve assembly of the wires. After completion, it is discharged through the discharging mechanism 5.

[0025] Combined with Figure 3 、 Figure 4Specifically, each multi-line conveying mechanism 6 includes a base 14, a conveying frame 15, a wire feeding motor 16, a wire feeding wheel set 17, at least three sets of auxiliary wire feeding assemblies 18, and a slide rail pushing assembly 19. A first slide rail 20 parallel to the screw rod 9 is further provided below the mounting frame 3. The base 14 is screwed to the screw rod 9 and slidably connected to the first slide rail 20. A relief hole 21 for allowing another screw rod 9 to pass through is formed in the base 14. The slide rail pushing assembly 19 is mounted on the base 14, and the pushing direction of the slide rail pushing assembly 19 is the same as the wire feeding direction. The slide rail pushing assembly 19 is composed of a second slide rail 22, a pushing motor 23, and a pushing screw rod 24. The second slide rail 22 is fixedly connected above the base 14 and perpendicular to the direction of the first slide rail 20. The pushing motor 23 is a servo motor and is mounted on the base 14. The pushing screw rod 24 is coaxially connected to the motor shaft of the servo motor, and the axis line of the pushing screw rod 24 is parallel to the length direction of the second slide rail 22. The conveying frame 15 is slidably connected to the second slide rail 22 and screwed to the pushing screw rod 24. The wire feeding wheel set 17 and the auxiliary wire feeding assemblies 18 are mounted on the conveying frame 15. Each set of auxiliary wire feeding assemblies 18 is adapted to the main wire feeding wheel and is used for conveying a wire. The wire feeding wheel set 17 is drivingly connected to the wire feeding motor 16 through a belt pulley 25.

[0026] Further, the number of sets of the auxiliary wire feeding assemblies 18 is 3 to 8. The wire feeding wheel set 17 includes a driving wheel 26 and a pressing wheel 27. A wire feeding groove 28 corresponding to the number of sets of the auxiliary wire feeding assemblies 18 is formed in the driving wheel 26. The wire feeding groove 28 is an annular groove provided around the driving wheel 26 of the wire feeding wheel set 17, and the cross section of the annular groove is V-shaped. In this embodiment, the number of sets of the auxiliary wire feeding assemblies 18 is 3, and the number of wire feeding grooves 28 is also 3. Each set of auxiliary wire feeding assemblies 18 includes a guiding nozzle 29, a guiding tube 30, and a lead-in tube 31. The guiding nozzle 29, the guiding tube 30, and the lead-in tube 31 are coaxially arranged. The outlet of the guiding tube 30 and the inlet of the lead-in tube 31 are respectively located on both sides of the wire feeding wheel set 17, and the wire feeding path of the wire guiding tube is tangent to the wire feeding groove 28 of the wire feeding wheel set 17. In other embodiments of the present invention, the specific number of the auxiliary wire feeding assemblies 18 and the wire feeding grooves 28 can be set according to actual requirements.

[0027] Combined with Figure 5, a set of terminal feeding mechanisms 32 are provided at both ends of the mounting bracket 3. The terminal feeding mechanism 32 includes a terminal bracket 33, a terminal tape reel 34, a guide plate 35, a waste paper recycling reel 36, and a feeding guide tube 37. The terminal tape reel 34 is arranged on the top of the terminal bracket 33. The waste paper recycling reel 36 is arranged in the middle of the terminal bracket 33 and below the terminal tape reel 34. The waste paper recycling reel 36 is coaxially connected with a winding motor 38. The guide plate 35 is arranged on the side of the waste paper recycling reel 36. A guide rod 39 for limiting the terminal tape is provided on the guide plate 35. The inlet end of the feeding guide tube 37 is arranged below the guide plate 35. The outlet end of the feeding guide tube 37 is close to the feeding port of the first terminal stamping mechanism 7 adjacent to the terminal feeding mechanism 32. The terminal tape and the waste paper are separated by the guide plate 35. The waste paper is wound and recycled by the waste paper recycling reel 36. The terminal tape is guided from the terminal tape reel 34 through the guide plate 35 into the feeding guide tube 37, and is conveyed along the feeding guide tube 37 to the feeding port of the first terminal stamping mechanism 7, and then is pressed by the first terminal stamping mechanism 7 on the inner end of the wire.

[0028] As Figure 6 shown, the wire cutting and stripping mechanism 4 includes an upper tool holder 40, a lower tool holder 41, an upper tool holder guide rail 42, a cutting tool assembly 43, a stripping tool assembly 44, a lower tool holder guide rail 45, a guide rail connecting plate 46, a guide rail seat 47, a first driving link 48, and a wire skin recovery tube 49. The upper tool holder 40 is installed on the upper tool holder guide rail 42. The lower tool holder 41 is installed on the lower tool holder guide rail 45. Both the upper tool holder guide rail 42 and the lower tool holder guide rail 45 are vertically slidably connected to the guide rail seat 47. The middle of the guide rail connecting plate 46 is hinged to the guide rail seat 47. The two ends of the guide rail connecting plate 46 are respectively hinged to the middle parts of the upper tool holder guide rail 42 and the lower tool holder guide rail 45. The upper end of the first driving link 48 is connected to the bottom of the upper tool holder 40 or the lower tool holder 41. The lower end of the first driving link 48 is used to connect to a driving shaft. The cutting tool assembly 43 includes an upper cutting tool 50 and a lower cutting tool 51. The stripping tool assembly 44 includes an upper stripping tool 52 and a lower stripping tool 53. The upper cutting tool 50 and the upper stripping tool 52 are jointly connected to the upper tool holder 40. The lower cutting tool 51 and the lower stripping tool 53 are jointly connected to the lower tool holder 41. The wire skin recovery tube 49 has a trumpet-shaped receiving port 54. The receiving port 54 is connected to the lower part of the lower tool holder 41 and is located between the lower cutting tool 51 and the lower stripping tool 53.

[0029] Furthermore, in order to improve the quality of wire cutting and stripping, a wire skin pushing assembly for facilitating the recovery of wire skin is also provided on the wire cutting and stripping mechanism 4. The wire skin pushing assembly includes a wire skin pushing piece 55 and a wire skin pushing cylinder 56. The wire skin pushing cylinder 56 is installed on the upper tool holder 40 and its push rod faces downward. The wire skin pushing piece 55 is connected to the push rod of the wire skin pushing cylinder 56. The wire skin pushing piece 55 is located between the upper cutting tool 50 and the upper stripping tool 52.

[0030] Combined with Figure 7As shown in the figure, in order to improve the yield rate of the product, a post-insertion detection mechanism 57 is provided between the second terminal socket assembly mechanism 13 and the discharging mechanism 5. The post-insertion detection mechanism 57 includes a first detection bracket 58, a second detection bracket 59, a plurality of detection strips 60, a second driving link 61, a first swing rod 62, a second swing rod 63, a bearing 64, a tension spring 65 and a proximity switch 66. The plurality of detection strips 60 are arranged in parallel, and the front end of each detection strip 60 is hinged to the upper end of the first detection bracket 58. The second detection bracket 59 is arranged on the side of the first detection bracket 58 away from the clamp turntable mechanism 2. The proximity switch 66 is arranged on the upper end of the second detection bracket 59. The tail end of each detection strip 60 is located above the proximity switch 66. The tail of each detection strip 60 is connected to the middle of the second detection bracket 59 through a tension spring 65. The first swing rod 62 is hinged to the first detection bracket 58 and is located below the detection strip 60. The second swing rod 63 is vertically arranged in the middle of the first swing rod 62. The bearing 64 is rotatably arranged on the upper end of the second swing rod 63. The upper end of the second driving link 61 is connected to the first swing rod 62, and the lower end of the second driving link 61 is used to connect to the drive shaft. The post-insertion detection mechanism 57 utilizes the lever principle in combination with the proximity switch 66 to achieve fast, accurate and reliable detection, thereby eliminating defective products and improving the qualification rate of the products sent out by the discharging mechanism 5.

[0031] Furthermore, this double-headed terminal housing machine further includes a lead frame 67, which guides the wires from the wire spool to the multi-wire conveying mechanism 6, and each multi-wire conveying mechanism 6 is equipped with a lead frame 67.

[0032] The steps of terminal crimping and socket assembly of this double-headed terminal housing machine are as follows:

[0033] Step a: Inner-end wire stripping of the wire: Use the wire stripping mechanism 4 to cut the front ends of the three wires conveyed by one of the multi-wire conveying mechanisms 6 to obtain the inner ends of the wires, and then strip the wire skins of the inner ends of the wires.

[0034] Step b: Connecting the terminal to the inner end of the wire: The drive motor 10 drives the multi-wire conveying mechanism 6 to move to the first terminal stamping mechanism 7, and at the same time the terminal feeding mechanism 32 delivers the terminal to the first terminal stamping mechanism 7, and the first terminal stamping mechanism 7 crimps the terminal onto the inner end of the wire.

[0035] Step c: Inserting the socket into the inner end of the wire: The drive motor 10 drives the multi-wire conveying mechanism 6 to move to the first terminal socket assembly mechanism 8 again, and the socket assembly mechanism inserts the terminal at the inner end of the wire into the socket.

[0036] Step d, stripping the outer end of the wire: The driving motor 10 drives the multi-wire conveying mechanism 6 to move back to the stripping mechanism 4. The slide rail pushing component 19 of the multi-wire conveying mechanism 6 operates to push the wire towards the stripping mechanism 4, so that the inner end of the wire is located inside the clamping turntable mechanism 2. After the pushing is in place, the clamping turntable mechanism 2 clamps the wire, and the stripping mechanism 4 trims the wire to obtain the outer end of the wire and the inner end of the subsequent wire. The trimmed wire rotates with the clamping turntable mechanism 2, and at the same time, the stripping mechanism 4 strips the inner end of the subsequent wire;

[0037] Step e, stripping the outer end of the wire: The outer end of the wire rotates with the clamping turntable mechanism 2 to the stripping mechanism 11, and the stripping mechanism 11 strips the outer end of the wire;

[0038] Step f, connecting the terminal to the outer end of the wire: The clamping turntable mechanism 2 drives the outer end of the wire to rotate to the second terminal stamping mechanism 12, and the second terminal stamping mechanism 12 presses the terminal onto the outer end of the wire;

[0039] Step g, inserting the sleeve for the outer end of the wire: The clamping turntable mechanism 2 drives the outer end of the wire to rotate to the second terminal sleeve assembling mechanism 13, and the terminal at the outer end of the wire is inserted into the sleeve through the sleeve assembling mechanism;

[0040] Step h, detecting and discharging: The clamping turntable mechanism 2 rotates to drive the wire to pass through the sleeve and then be detected by the detection mechanism 57. After passing the detection, the clamping turntable mechanism 2 drives the wire to the discharging mechanism 5, and the discharging mechanism 5 discharges the wire; if the detection is unqualified, there will be no discharging.

[0041] In the above steps, steps a, b, and c are cyclic operation processes, and the multi-wire conveying mechanisms 6 of the two sets of first socket devices alternately cooperate with the stripping mechanism 4 to perform stripping operations on the wire without interfering with each other. When the wire is pushed into the clamping turntable mechanism 2 in step d, while the wire is being pushed by the wire feeding wheel set 17, the entire conveying frame 15 slides on the second slide rail 22 driven by the pushing motor 23, which can not only increase the movement stroke but also improve the wire feeding speed.

[0042] The lead frame 67, the first terminal stamping mechanism 7, the first terminal sleeve assembling mechanism 8, the second terminal stamping mechanism 12, and the second terminal sleeve assembling mechanism 13 in this embodiment are general standard parts or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods, and will not be elaborated in this application.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A double-headed terminal inserting shell machine, comprising a frame (1), wherein an intermittently rotatable clamp turntable mechanism (2) is arranged on the frame (1), and is characterized in that The frame (1) is also provided with a mounting frame (3), a wire cutting and stripping mechanism (4), two sets of first plug-in shell devices, one set of second plug-in shell devices and a discharging mechanism (5); the mounting frame (3) is arranged on the front side of the clamp turntable mechanism (2); the wire cutting and stripping mechanism (4) is installed on the middle part of the mounting frame (3) close to the clamp turntable mechanism (2); the two sets of first plug-in shell devices are respectively arranged on the left and right sides of the wire cutting and stripping mechanism (4); each set of first plug-in shell devices comprises a multi-wire conveying mechanism (6) slidably connected to the bottom of the mounting frame (3) and a first terminal stamping mechanism (7) arranged from the wire cutting and stripping mechanism (4) to the end of the mounting frame (3); The first terminal plug sleeve assembly mechanism (8) is characterized in that the multi-wire conveying mechanism (6) can slide back and forth and stop from the wire cutting and stripping mechanism (4) to the first terminal plug sleeve assembly mechanism (8); the multi-wire conveying mechanism (6) of the two sets of first plug shell devices alternately stay at the wire cutting and stripping mechanism (4) to cut the inner end of the wire, strip the wire and cut the outer end of the wire; the second plug shell device comprises a wire stripping mechanism (11), a second terminal stamping mechanism (12) and a second terminal plug sleeve assembly mechanism (13) which are located at the rear side of the mounting frame (3) and are arranged in sequence around the clamp turntable mechanism (2); the discharging mechanism (5) is arranged behind the second terminal plug sleeve assembly mechanism (13).

2. The double-headed terminal inserting shell machine according to claim 1, characterized in that, Two screw rods (9) and two drive motors (10) are arranged below the mounting frame (3); the two screw rods (9) are arranged in parallel along the left-right direction; the two drive motors (10) are respectively arranged at the left and right ends of the mounting frame (3); the output shaft of each drive motor (10) is coaxially connected to a screw rod (9); and the multi-line conveying mechanisms (6) of the two sets of the first plug-in shell devices are respectively screwed on a screw rod (9).

3. The double-ended terminal inserting machine according to claim 2, characterized in that, The multi-wire conveying mechanism (6) comprises a base (14), a conveying frame (15), a wire feeding motor (16), a wire feeding wheel group (17), at least three groups of auxiliary wire feeding assemblies (18) and a slide rail pushing assembly (19); a first slide rail (20) parallel to the screw rod (9) is also provided below the mounting frame (3); the base (14) and the screw rod (9) are screwed and slidably connected to the first slide rail (20); the slide rail pushing assembly (19) is mounted on the base (14) and the pushing direction of the slide rail pushing assembly (19) is the same as the wire feeding direction; the conveying frame (15) is slidably connected to the slide rail pushing assembly (19); the wire feeding wheel group (17) and the auxiliary wire feeding assembly (18) are mounted on the conveying frame (15); each group of auxiliary wire feeding assemblies (18) is adapted to the wire feeding main wheel and is used to convey a wire; the wire feeding wheel group (17) is transmission-connected to the wire feeding motor (16) via a pulley (25).

4. The double-headed terminal inserting shell machine according to claim 3, characterized in that, The slide rail pushing component (19) consists of a second slide rail (22), a pushing motor (23) and a pushing screw rod (24). The second slide rail (22) is fixedly connected above the base (14) and is perpendicular to the first slide rail (20) in direction; the pushing motor (23) is a servo motor and is installed on the base (14); the pushing screw rod (24) is coaxially connected to the motor shaft of the servo motor, and the axis line of the pushing screw rod (24) is parallel to the length direction of the second slide rail (22).

5. The double-headed terminal inserting shell machine according to claim 3, characterized in that, A relief hole (21) for the screw rod (9) in another set of first plug housing devices to pass through is provided on the base (14) of each multi-line conveying mechanism (6).

6. The double-headed terminal insertion machine according to claim 3 or 4 or 5, characterized in that The number of the auxiliary wire feeding components (18) is 3 - 8 groups, and wire feeding grooves (28) corresponding to the number of the auxiliary wire feeding components (18) are provided on the wire feeding wheel set (17).

7. The double-headed terminal inserting shell machine according to claim 1 or 2, characterized in that, The wire cutting and stripping mechanism (4) includes an upper tool rest (40), a lower tool rest (41), an upper tool rest guide rail (42), a cutting tool assembly (43), a stripping tool assembly (44), a lower tool rest guide rail (45), a guide rail connecting plate (46), a guide rail seat (47), a first driving connecting rod (48) and a wire skin recovery pipe (49). The upper tool rest (40) is installed on the upper tool rest guide rail (42), and the lower tool rest (41) is installed on the lower tool rest guide rail (45). The upper tool rest guide rail (42) and the lower tool rest guide rail (45) are both vertically slidably connected to the guide rail seat (47). The middle of the guide rail connecting plate (46) is hinged to the guide rail seat (47), and the two ends of the guide rail connecting plate (46) are respectively hinged to the middle parts of the upper tool rest guide rail (42) and the lower tool rest guide rail (45). The upper end of the first driving connecting rod (48) is connected to the bottom of the upper tool rest (40) or the lower tool rest (41), and the lower end of the first driving connecting rod (48) is used for connecting a driving shaft. The cutting tool assembly (43) includes an upper cutting tool (50) and a lower cutting tool (51), and the stripping tool assembly (44) includes an upper stripping tool (52) and a lower stripping tool (53). The upper cutting tool (50) and the upper stripping tool (52) are jointly connected to the upper tool rest (40), and the lower cutting tool (51) and the lower stripping tool (53) are jointly connected to the lower tool rest (41). The wire skin recovery pipe (49) has a flared receiving opening (54), and the receiving opening (54) is connected to the lower part of the lower tool rest (41) and is located between the lower cutting tool (51) and the lower stripping tool (53).

8. The double-headed terminal inserting shell machine according to claim 7, wherein The wire cutting and stripping mechanism (4) further includes a wire skin pushing piece (55) and a wire skin pushing cylinder (56). The wire skin pushing cylinder (56) is installed on the upper tool rest (40) and its push rod faces downward. The wire skin pushing piece (55) is connected to the push rod of the wire skin pushing cylinder (56), and the wire skin pushing piece (55) is located between the upper cutting tool (50) and the upper stripping tool (52).

9. The double-headed terminal inserting shell machine according to claim 1 or 2, characterized in that Both ends of the mounting bracket (3) are further provided with a set of terminal feeding mechanisms (32). The terminal feeding mechanism (32) includes a terminal bracket (33), a terminal tape reel (34), a guide plate (35), a waste paper recycling reel (36), and a feeding guide pipe (37). The terminal tape reel (34) is arranged on the top of the terminal bracket (33). The waste paper recycling reel (36) is arranged in the middle of the terminal bracket (33) and below the terminal tape reel (34). The waste paper recycling reel (36) is coaxially connected with a winding motor (38). The guide plate (35) is arranged on the side of the waste paper recycling reel (36). The guide plate (35) is provided with a guide rod (39) for limiting the terminal tape. The inlet end of the feeding guide pipe (37) is arranged below the guide plate (35). The outlet end of the feeding guide pipe (37) is close to the feeding port of the first terminal stamping mechanism (7) adjacent to the terminal feeding mechanism (32).

10. The double-headed terminal inserting shell machine according to claim 1 or 2, characterized in that, A post-insertion detection mechanism (57) is arranged between the second terminal socket assembly mechanism (13) and the discharging mechanism (5). The post-insertion detection mechanism (57) includes a first detection bracket (58), a second detection bracket (59), a plurality of detection strips (60), a second driving link (61), a first swing rod (62), a second swing rod (63), a bearing (64), a tension spring (65), and a proximity switch (66). The plurality of detection strips (60) are arranged in parallel, and the front end of each detection strip (60) is hinged to the upper end of the first detection bracket (58). The second detection bracket (59) is arranged on the side of the first detection bracket (58) away from the clamp turntable mechanism (2). The proximity switch (66) is arranged on the upper end of the second detection bracket (59). The tail end of each detection strip (60) is located above the proximity switch (66). The tail of each detection strip (60) is connected to the middle of the second detection bracket (59) through a tension spring (65). The first swing rod (62) is hinged to the first detection bracket (58) and is located below the detection strip (60). The second swing rod (63) is vertically arranged in the middle of the first swing rod (62). The bearing (64) is rotatably arranged on the upper end of the second swing rod (63). The upper end of the second driving link (61) is connected to the first swing rod (62). The lower end of the second driving link (61) is used to connect the drive shaft.

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