An 8-shaped tail inner frame assembling machine
By designing an 8-tail inner frame assembly machine, the accurate installation of the metal inner frame is achieved using a bracket and drive mechanism, solving the problems of time-consuming and labor-intensive assembly and safety hazards, and improving assembly efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHAOHUI ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-19
Smart Images

Figure CN224373319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical appliances, specifically to an assembly machine with an 8-shaped internal frame. Background Technology
[0002] The figure-eight inner frame is a core component in power connectors used to secure terminals and optimize insertion and removal performance. Its name comes from its structural shape, which resembles the number "8," and consists of two cylindrical metal inner frames and a figure-eight outer shell. During assembly in the workshop, the metal inner frames are inserted into the figure-eight outer shell, their orientation is adjusted by rotation, and then a pneumatic device is used to press them together, further driving the lower end of the inner frame into a circular groove to achieve an interference fit. The entire process is manual, time-consuming, labor-intensive, and prone to hand injuries during installation. Furthermore, the orientation of the installed inner frame is often inaccurate. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides an 8-tail inner frame assembly machine, which greatly improves assembly efficiency and is safe and reliable.
[0004] The technical solution of this utility model is as follows: an 8-tail inner frame assembly machine, including a support, a mold and a drive mechanism. The drive mechanism is fixedly connected to the upper end of the support, the output end of the drive mechanism faces downward and is connected to the mold, and the middle part of the support is provided with an upward-opening groove, and the mold can be downward abutted against the upper end of the groove.
[0005] Furthermore, the lower end of the mold is provided with a stepped groove.
[0006] Furthermore, the stepped groove opens from top to bottom.
[0007] Furthermore, the bracket includes a connecting plate and a support plate. There are two support plates, which are fixedly connected by the connecting plate. The connecting plate is located on the front side of the two support plates, and the groove is located at the upper end of the connecting plate and runs through it from left to right.
[0008] Furthermore, the front side of the support plate is a slope.
[0009] Furthermore, the front side of the support plate is provided with a downward-opening sliding groove, and the mold is slidably connected in the sliding groove.
[0010] Furthermore, an adjustment plate is detachably connected to the rear side of the connecting plate, and the upper end of the adjustment plate is hung on the connecting plate.
[0011] Furthermore, the front side of the connecting plate is provided with a notch leading to the groove.
[0012] Furthermore, both support plates are provided with a lifting structure on their front side, and the connecting plate is located at the upper end of the lifting structure.
[0013] Furthermore, the rear end of the support plate is provided with an upwardly protruding handle.
[0014] Furthermore, the driving mechanism includes a cylinder, which is fixedly connected to the side of the support plate, with the output end of the cylinder facing downwards and connected to the mold.
[0015] Furthermore, it also includes a manual valve, which is fixedly connected to the side of the support plate and connected to the cylinder via an air pipe.
[0016] Compared with the prior art, the advantages of this utility model are: by driving the mold to press down through the drive mechanism, the lower end of the metal inner frame is further driven into the circular groove to achieve an interference fit; the assembly of this machine is accurate and consistent, and can also effectively avoid the operator's hands being scratched by the metal inner frame, greatly improving the assembly efficiency and ensuring safety and reliability. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a side view of the present invention;
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a schematic diagram of the structure of the figure-eight tail inner frame of this utility model;
[0022] Figure 5 This is a diagram showing the usage state of this utility model.
[0023] The components include: 1. Support plate; 101. Sliding groove; 102. Lifting structure; 103. Handle; 2. Connecting plate; 201. Groove; 202. Notch; 3. Mold; 301. Step groove; 4. Cylinder; 5. Manual valve; 6. Adjusting plate; 7. Figure-8 tail inner frame; 701. Metal inner frame; 702. Figure-8 outer shell. Detailed Implementation
[0024] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.
[0025] like Figure 1-5 As shown, an 8-tail inner frame assembly machine includes a support, a mold 3, and a drive mechanism. The drive mechanism is fixedly connected to the upper end of the support, with its output end facing downward and connected to the mold 3. The support has an upward-opening groove 201 in the middle for placing the parts to be assembled. The mold 3 can be pressed downward against the upper end of the groove 201. This limiting action completes the assembly of the parts while pressing. The metal inner frame 701 to be assembled is pre-inserted into the circular groove of the 8-shaped outer shell 702. The 8-shaped outer shell 702 is embedded in the groove 201. The drive mechanism pushes the mold 3 downward, further pressing the lower end of the metal inner frame 701 into the circular groove to achieve an interference fit and complete the assembly of the 8-tail inner frame 7.
[0026] In the above embodiment, the lower end of the mold 3 is provided with a stepped groove 301, which is narrower at the top and wider at the bottom, corresponding to the structure of the metal inner frame 701. At the same time, since the top of the metal inner frame 701 is a semi-annular structure with a high center and lower sides, it falls down from the center to the sides in an arc shape. When the mold 3 moves downward, after the metal inner frame 701 enters the stepped groove 301, the top of the metal inner frame 701 first contacts the step line of the stepped groove 301. After the mold 3 continues to move downward, the thrust causes the top of the metal inner frame 701 to slide relative to the step line, so that the metal inner frame 701 rotates relative to the circular groove of the figure-eight outer shell 702 until the front of the semi-annular structure faces outward and the top of the metal inner frame 701 is completely pushed into the top of the stepped groove 301. This achieves the functions of assembly, correction, and alignment. The stepped groove 301 opens from top to bottom, and the lower end of the stepped groove 301 is rounded or beveled to facilitate the smooth entry of the metal inner frame 701 into the stepped groove 301. When the metal inner frame 701 is pre-installed into the figure-eight outer shell 702, there is a certain assembly gap between the metal inner frame 701 and the circular groove, and the upper end of the metal inner frame 701 is prone to shaking, resulting in poor coaxiality between the metal inner frame 701 and the circular groove. When the mold 3 is pressed down, the metal inner frame 701 may hit the lower end face of the mold 3, causing damage to the metal inner frame 701 and the figure-eight outer shell 702. However, after rounding or beveling, the metal inner frame 701 can slide into the stepped groove 301 along the rounded or beveled corners, ensuring smooth assembly.
[0027] The bracket includes a connecting plate 2 and a support plate 1. There are two support plates 1, which are fixedly connected by the connecting plate 2. The connecting plate 2 is located on the front side of the two support plates 1. The groove 201 is located on the upper end of the connecting plate 2 and runs through it from left to right. After machining, the connecting plate 2 and the support plate 1 are fixedly connected by screws or bolts, which is convenient and quick to manufacture and assemble. When viewed from the front, the bracket formed by the connecting plate 2 and the support plate 1 is H-shaped, which is stable and helps to improve the stability of the machine during assembly. The front side of the support plate 1 is sloping, so that the connecting plate 2 installed on the front side of the support plate 1 is also facing the operator, which is convenient for the operator to load and unload materials, observe, and assemble. At the same time, the sloping design makes the bracket have a triangular structure, which further improves its stability when placed and used. The support plate 1 has a downward-opening sliding groove 101 on its front side. The mold 3 is slidably connected in the sliding groove 101, which provides guidance for the mold 3. When the drive mechanism pushes the mold 3 down, it ensures that the mold 3 can always provide positive thrust, and avoids deformation or deviation of the mold 3 or the metal inner frame 701 due to uneven contact surfaces between the mold 3 and the metal inner frame 701.
[0028] An adjusting plate 6 is detachably connected to the rear side of the connecting plate 2, and the upper end of the adjusting plate 6 is hung on the connecting plate 2. The adjusting plate 6 can provide a lower limit for the mold 3 to prevent the metal inner frame 701 from being excessively driven into the circular groove. At the same time, the front end of the adjusting plate 6 extends slightly into the upper part of the groove 201, providing an upper limit for the figure-eight shell 702 without interfering with the metal inner frame 701, ensuring that the figure-eight shell 702, as a carrier, is installed in the groove 201 and is stably stressed, which helps to improve the accuracy during assembly. Depending on the model of the figure-eight tail inner frame 7 being assembled, an adjusting plate 6 of the corresponding size can be used to adapt to the size of the figure-eight shell 702.
[0029] The connecting plate 2 has a notch 202 on its front side leading to the groove 201, which can serve as a viewing window to observe the arrangement of the figure-eight shells 702 and promptly detect misalignment caused by surface defects in some figure-eight shells 702. Both support plates 1 have a lifting structure 102 on their front sides, with the connecting plate 2 located above the lifting structure 102. This provides auxiliary force to the screws or bolts between the connecting plate 2 and the support plate 1, preventing damage to the screws or bolts caused by continuous assembly operations. The rear end of the support plate 1 has an upward-protruding handle 103 for easy gripping and position adjustment by the operator.
[0030] The driving mechanism includes a cylinder 4 and a manual valve 5. The cylinder 4 is fixedly connected to the side of the support plate 1, with its output end facing downwards and connected to the mold 3. The manual valve 5 is fixedly connected to the side of the support plate 1 and is connected to the cylinder 4 via an air pipe. By pressing the manual valve 5, the cylinder 4 can provide thrust to the mold 3, driving the metal inner frame 701 into the circular groove. After releasing the manual valve 5, the cylinder 4 automatically retracts to its original position, forming a jogging assembly process.
[0031] Description of the working principle of this utility model:
[0032] After the injection-molded figure-eight outer shell 702 and the bent metal inner frame 701 are prepared, the cylindrical metal inner frame 701 is manually inserted into the circular groove of the figure-eight outer shell 702. The orientation of the metal inner frame 701 is adjusted by rotation so that the semi-circular structure at the top of the metal inner frame 701 faces the operator. After installing the metal inner frame 701 in both circular grooves of each figure-eight outer shell 702, the figure-eight outer shell 702 is slid into the groove 201 from the side, and multiple figure-eight outer shells 702 abut against each other. Pressing the manual valve 5, the cylinder 4 pushes the mold 3 downward. The stepped groove 301 of the mold 3 completes the correction of the metal inner frame 701 at the moment of contact with the metal inner frame 701, and at the same time, the metal inner frame 701 is driven into the circular groove of the figure-eight outer shell 702, realizing the assembly of the figure-eight tail inner frame 7. It is convenient and quick. It is equivalent to a pure manual operation with transmission. The machine assembles accurately and consistently, and can also effectively avoid the operator's hands being scratched by the metal inner frame 701. The assembly efficiency is greatly improved and it is safe and reliable.
[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An 8-ways tip inner shelf assembling machine, comprising a support, a mold and a driving mechanism, characterized in that: The drive mechanism is fixedly connected to the upper end of the bracket. The output end of the drive mechanism faces downward and is connected to the mold. The bracket has an upward-opening groove in the middle, and the mold can be pressed against the upper end of the groove downward.
2. The figure-eight tail inner frame assembly machine according to claim 1, characterized in that: The mold has a stepped groove at its lower end.
3. The figure-eight tail inner frame assembly machine according to claim 2, characterized in that: The stepped groove opens from top to bottom.
4. The figure-eight tail inner frame assembly machine according to claim 1, characterized in that: The bracket includes a connecting plate and a support plate. There are two support plates, which are fixedly connected by the connecting plate. The connecting plate is located on the front side of the two support plates, and the groove is located at the upper end of the connecting plate and runs through the left and right sides.
5. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: The front side of the support plate is sloped.
6. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: The front side of the support plate is provided with a downward-opening sliding groove, and the mold is slidably connected in the sliding groove.
7. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: An adjustment plate is detachably connected to the rear side of the connecting plate, and the upper end of the adjustment plate is hung on the connecting plate.
8. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: The front side of the connecting plate has a notch leading to the groove.
9. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: Both support plates are equipped with a lifting structure on their front sides, and a connecting plate is located at the upper end of the lifting structure. The rear end of each support plate is equipped with an upward-protruding handle.
10. The figure-eight tail inner frame assembly machine according to claim 4, characterized in that: The driving mechanism includes a cylinder and a manual valve. The cylinder is fixedly connected to the side of the support plate, with its output end facing downwards and connected to the mold. The manual valve is fixedly connected to the side of the support plate and is connected to the cylinder via an air pipe.