Assembling jig

Abstract

The assembling jig comprises a rotating device arranged on a positioning seat, a positioning assembly connected to the output end of the rotating device, a first pressing device, a second pressing device and an inserting device, wherein the first pressing device, the second pressing device and the inserting device are arranged on the positioning assembly. The positioning assembly is connected with a vacuum suction cup arranged on a carrier plate through the carrier plate with a profiling groove and fixes the mobile phone rear cover, and the rotating device is used for driving the positioning assembly to rotate, so that the positioning assembly drives the first pressing device, the second pressing device and the inserting device to be switched between the horizontal position and the side vertical position. The first pressing device abuts against and fixes a mobile phone rear cover on the carrier plate through a swing arm which rotates and moves relative to the carrier plate, and the second pressing device abuts against and fixes a charging flat cable which is preliminarily inserted into the mobile phone rear cover through a pressing plate which moves relative to the carrier plate. And the plugging device supports and positions the assembly of the charging flat cable on the mobile phone rear cover through a plugging tongue which moves relative to the carrier plate and is in plugging fit with an assembly hole in the mobile phone rear cover.

Description

Technical Field

[0001] The utility model relates to electronic product assembly equipment, in particular to an assembly fixture for assembling electronic products. Background Art

[0002] With the rapid development of science and technology and the continuous improvement of people's consumption level, the requirements for the quality of electronic products such as mobile phones, tablets, headphones, etc. are getting higher and higher. While requiring high quality, they also pursue a design-oriented appearance. Therefore, more and more electronic products are designed to be smaller, lighter, and thinner, and often have a certain curvature. Therefore, electronic products are also developing towards high-density integration and ultra-fineness. Correspondingly, the requirements for assembly equipment for electronic products are also getting higher and higher. Among them, the assembly production process of the above-mentioned electronic products is generally more complicated. In order to improve production efficiency, electronic products are often split into several independent unit components, and these independent unit components are assembled together after they are assembled.

[0003] For example, in the production process of mobile phones, it involves assembling the charging cable into the back cover of the mobile phone after it is assembled. Whether the charging cable and the back cover of the mobile phone are assembled accurately directly affects the subsequent use of the mobile phone. Since the assembly holes for the interface of the charging cable on the back cover of the mobile phone are mostly opened at the lower side of the back cover, the assembly position is relatively small, and other unit components have been assembled on the back cover, the shape of the charging cable itself is irregular and difficult to fix, making it difficult to assemble the back cover of the mobile phone and the charging cable, and its assembly accuracy cannot be effectively guaranteed. In addition, after the charging cable is initially assembled to the back cover of the mobile phone, it needs to be tightened with screws, and the knob action of the screws places higher requirements on the positioning of the charging cable and the back cover.

[0004] Therefore, a simple structure, accurate positioning and efficient assembly fixture is needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a high-efficiency assembly fixture with simple structure and accurate positioning.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an assembly fixture for assembling the charging cable on the back cover of a mobile phone. The assembly fixture includes a positioning seat, a rotating device arranged on the positioning seat, a positioning component connected to the output end of the rotating device, a first pressing device and a second pressing device arranged on the left and right opposite sides of the positioning component, and a plug-in device arranged on the lower side of the positioning component. The positioning component receives and fixes the back cover of the mobile phone through a carrier plate with a contoured groove and a vacuum suction cup arranged on the carrier plate. The rotating device is used to drive the positioning component to rotate so that the The positioning assembly drives the first pressing device, the second pressing device and the plug-in device to switch between a horizontal position and a sideways position; the first pressing device presses and fixes the back cover of the mobile phone on the carrier plate by means of a swing arm that rotates and moves relative to the carrier plate; the second pressing device presses and fixes the charging cable preliminarily assembled on the back cover of the mobile phone by means of a pressure plate that moves relative to the carrier plate; the plug-in device supports and positions the assembly of the charging cable on the back cover of the mobile phone by means of a plug tongue that moves relative to the carrier plate and engages with the assembly hole on the back cover of the mobile phone.

[0007] Preferably, the positioning seat includes two vertical plates arranged in parallel and spaced apart, the rotating device includes two driving plates and at least one rotating motor, one end of the two driving plates are pivotally connected to the two vertical plates in a one-to-one correspondence, the other ends of the two driving plates are respectively connected to the left and right opposite sides of the rear end of the carrier plate, at least one of the vertical plates is provided with a rotating motor, and the output end of the rotating motor is connected to the driving plate pivotally connected to the vertical plate.

[0008] Preferably, the positioning assembly further comprises a carrier detachably arranged on the carrier plate, and the carrier is provided with the contoured groove.

[0009] Preferably, the carrier plate is further provided with an observation port penetrating the carrier plate in the front-to-back direction, and the observation port is arranged at the edge of the lower side end of the profiling groove.

[0010] Preferably, the first pressing device also includes a rotary pressing cylinder connected to the swing arm, and the rotary pressing cylinder is installed at the edge of the relatively left side of the carrier plate to drive the swing arm to rotate and move up and down relative to the contoured groove.

[0011] Preferably, the plug-in device also includes a first electric cylinder connected to the lower end of the carrier plate, a first precision slide connected to the output end of the first electric cylinder, and a second precision slide connected to the output end of the first precision slide, and the plug-in tongue is connected to the output end of the second precision slide to perform linear reciprocating motion in the up and down directions, left and right directions, and front and back directions under the drive of the first electric cylinder, the first precision slide, and the second precision slide.

[0012] Preferably, the second pressing device also includes a second electric cylinder installed at the opposite top side end of the carrier plate, a third electric cylinder connected to the output end of the second electric cylinder, and a fourth electric cylinder connected to the output end of the third electric cylinder, the pressing plate is connected to the output end of the fourth electric cylinder, and the second electric cylinder, the third electric cylinder and the fourth electric cylinder correspondingly drive the pressing plate to perform linear reciprocating motion in the left-right direction, the front-back direction, and the up-down direction.

[0013] Preferably, the pressure plate includes a first pressure head and a second pressure head which are spaced apart and connected to the output end of the fourth electric cylinder, the first pressure head and the second pressure head respectively press and fix the interface end of the charging cable and the cable, and the upper end of the first pressure head is relatively thick while the lower end is relatively thin and has an avoidance slope.

[0014] Preferably, the inserting tongue and the carrier plate are arranged in parallel.

[0015] Preferably, the assembly fixture further comprises a transfer device, the positioning seat is slidably disposed on the transfer device, and driven by the transfer device, performs linear reciprocating motion along the front-rear direction.

[0016] Compared with the prior art, in the assembly fixture provided by the utility model, the positioning component is driven to rotate by the rotating device, and the rotating positioning component drives the first pressing device, the second pressing device and the plug-in device arranged at different positions thereof to switch synchronously between the horizontal position and the side position, so that when the mobile phone back cover is received at a horizontal position convenient for receiving materials, the positioning component can effectively fix the mobile phone back cover through the carrier plate with the profiling groove and the vacuum suction cup arranged on the carrier plate, and steadily drive the mobile phone back cover to change its posture, effectively preventing it from shifting during the rotation process, and the first pressing device is combined with the rotation and movement of the swing arm to press and fix the mobile phone back cover on the carrier plate, further strengthening the fixation of the mobile phone back cover. The stability of the positioning of the cover; when the positioning component drives the back cover of the mobile phone to switch to a side position that is convenient for assembly, the plug-in device cooperates with the plug-in hole on the back cover of the mobile phone through the plug tongue that moves relative to the carrier plate to support, position and guide the initial assembly of the charging cable on the back cover of the mobile phone, which is convenient for the interface end of the charging cable to accurately dock with the assembly hole, and in the subsequent screw connection process, the support and positioning of the initially assembled mobile phone back cover and the charging cable are always maintained, which effectively improves the locking accuracy of the screws. Combined with the second pressing device, the pressing and fixing of the initially assembled charging cable can further ensure the locking accuracy of the screws. The assembly fixture provided by the utility model has a simple structure, accurate positioning and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional view from one angle of the assembly fixture of the utility model.

[0018] Figure 2 It is a three-dimensional view of the assembly fixture of the utility model from another angle.

[0019] Figure 3 It is a three-dimensional diagram of the assembly fixture of the utility model in a horizontal position.

[0020] Figure 4 It is a side view of the assembly fixture of the utility model in a side-standing position.

[0021] Figure 5 It is a three-dimensional diagram of the rotating device of the utility model.

[0022] Figure 6 It is a three-dimensional diagram of the positioning component of the utility model.

[0023] Figure 7 It is a three-dimensional diagram of the plug-in device of the utility model.

[0024] Figure 8 It is a three-dimensional diagram of the second pressing device of the utility model. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0026] See also Figures 1 to 8The utility model provides an assembly fixture 100 for assembling the charging cable 300 on the back cover 200 of a mobile phone. Of course, the assembly fixture 100 of the present application is also applicable to other electronic products, and is used for assembling electronic components with cables and other components. In general, the assembly fixture 100 provided in the preferred embodiment of the utility model includes a positioning seat 10, a rotating device 20 arranged on the positioning seat 10, a positioning assembly 30 connected to the output end of the rotating device 20, a first pressing device 40 and a second pressing device 60 arranged on the left and right opposite sides of the positioning assembly 30, and a plug-in device 50 arranged on the lower side of the positioning assembly 30. The positioning assembly 30 receives and fixes the back cover 200 of the mobile phone through a carrier plate 31 having a contoured groove 30a and a vacuum suction cup 32 arranged on the carrier plate 31. The rotating device 20 is used to drive the positioning assembly 30 to rotate, so that the positioning assembly 30 drives the first pressing device 40, the second pressing device 30 and the plug-in device 50 arranged thereon to switch between the horizontal position and the side position. The first pressing device 40 presses and fixes the mobile phone back cover 200 on the carrier plate 31 through the swing arm 41 that rotates and moves relative to the carrier plate 31, and the second pressing device 60 presses and fixes the charging cable 300 preliminarily assembled on the mobile phone back cover 200 through the pressure plate 61 that moves relative to the carrier plate 31. The plug-in device 50 supports and positions the preliminarily assembled charging cable 300 on the mobile phone back cover 200 through the plug tongue 51 that moves relative to the carrier plate 31 to plug and match with the assembly hole 200a on the mobile phone back cover 200, so as to facilitate the accurate docking of the interface end of the charging cable 300 with the assembly hole 200a.

[0027] It should be noted that, for ease of understanding, all the directions of "front", "rear", "left", "right", "up" and "down" involved in the present invention are based on the positioning seat 10 as a reference. Figure 1 In addition, the side position of the positioning assembly 30 is relative to the horizontal position, not completely perpendicular to the horizontal position, but Figure 4 As shown, it is tilted backward at a certain angle, that is, slightly greater than 90 degrees, so as to facilitate the assembly of the charging cable 300.

[0028] See also Figure 1 and Figure 2Specifically, in some embodiments, the assembly fixture 100 of the utility model further includes a transfer device 70, and the positioning seat 10 is slidably arranged on the transfer device 70, so that it performs linear reciprocating motion in the front-to-back direction under the drive of the transfer device 70, so as to realize the movement between different workstations, and is convenient for cooperating with the feeding device of the mobile phone back cover 200 on the automated assembly line, the feeding device and assembly device of the charging cable 300, and the feeding device and assembly device of the screws, so as to effectively improve the efficiency of the material receiving, assembly and unloading operations. Among them, the transfer device 70 includes a base 71 and a servo motor linear module 72 arranged on the base 71 along the front-to-back direction, and the positioning seat 10 is connected to the output end of the servo motor linear module 72, so as to move forward and backward under its drive. Specifically, the base 71 is also provided with a linear guide rail 73 arranged along the front-to-back direction and located beside the servo motor linear module 72, and a part of the positioning seat 10 is slidably arranged on the linear guide rail 73, so as to effectively improve the stability of the movement of the positioning seat 10.

[0029] See also Figure 4 and Figure 5 Specifically, the positioning seat 10 includes two vertical plates 11 arranged in parallel and spaced apart, and the opposite rear ends of the carrier plate 31 are respectively connected to the two vertical plates 11, so as to receive and fix the mobile phone back cover 200 at its opposite front end. Specifically, the rotating device 20 includes two driving plates 21 and at least one rotating motor 22 that drives the two driving plates 21 to rotate synchronously. One end of the two driving plates 21 is pivotally connected to the two vertical plates 11 in a one-to-one correspondence, and the other end is respectively connected to the left and right opposite sides of the rear end of the carrier plate 31, and the rotating motor 22 is installed on at least one vertical plate 11, and the output end of the rotating motor 22 is connected to the driving plate 21 pivotally connected to the vertical plate 11 to drive the driving plate 21 connected thereto to rotate. When the rotating motor 22 and the driving plate 21 are arranged in a one-to-one correspondence, the two driving plates 21 are driven by the two rotating motors 22 to rotate synchronously, thereby driving the carrier plate 31 to rotate, so as to achieve position switching. Of course, in order to simplify the structure, the rotary motor 22 can also be arranged on only one vertical plate 11, and the driving plate 21 arranged on the vertical plate 11 is directly connected to the output end of the rotary motor 22. When the rotary motor 22 drives the driving plate 21 directly connected thereto to rotate, the driving plate 21 on the other side rotates synchronously therewith, and the switching of the carrier plate 31 between different positions can also be realized. In addition, a sensor is also arranged on the vertical plate 11 for sensing the rotation angle of the driving plate 21.

[0030] See also Figures 1 to 4Specifically, the first pressing device 40 further includes a rotary pressing cylinder 42 connected to the swing arm 41, which is installed at the edge of the carrier plate 31 on the left side thereof, and is used to drive the swing arm 41 to rotate and move up and down relative to the profiling groove 30a. When working, the swing arm 41 rotates from the edge of the carrier plate 31 into the profiling groove 30a, and moves down to abut against the mobile phone back cover 200 in the profiling groove 30a, or, when the assembly is completed and the material needs to be taken, the swing arm 41 rotates out of the profiling groove 30a, and moves up to reset, so as to release the positioning of the mobile phone back cover 200.

[0031] Combination Figure 1 , Figure 3 and Figure 6 Specifically, a contoured groove 30a corresponding to the shape of the mobile phone back cover 200 can be directly formed on the carrier 31, and in some embodiments, the positioning assembly 30 also includes a carrier 33 detachably arranged on the carrier 31, and the carrier 33 is provided with a contoured groove 30a. The mobile phone back cover 200 can be loaded and fixed in the contoured groove 30a of the carrier 33 in advance to achieve a primary positioning, and then the carrier 33 with the mobile phone back cover 200 fixed is loaded on the carrier 31 to achieve a secondary positioning, which can not only achieve a more secure fixation of the mobile phone back cover 200, but also effectively reduce the loading and positioning time of the mobile phone back cover 200 directly loaded on the carrier 31, effectively improve efficiency, and better meet the needs of automated production lines. Among them, a positioning pin 34 is also provided on the carrier 31, which is used to cooperate with the positioning hole on the carrier 33 to further improve the loading efficiency of the carrier 33. In addition, in some embodiments, an observation port 31a is provided on the carrier plate 31 and penetrates the carrier plate 31 along the front-to-back direction. The observation port 31a is arranged at the edge of the lower side end of the contoured groove 30a, which is convenient for detecting and identifying the assembly of the mobile phone back cover 200 and the charging cable 300 through a CCD camera, thereby effectively improving the assembly accuracy.

[0032] See 3 and Figure 7 Specifically, the plug tongue 51 is arranged in parallel with the carrier plate 31, so as to facilitate the plug-in cooperation between the plug tongue 51 and the assembly hole 200a. Specifically, the plug-in device 50 also includes a first electric cylinder 52 connected to the lower side end of the carrier plate 31, a first precision slide 53 connected to the output end of the first electric cylinder 52, and a second precision slide 54 connected to the output end of the first precision slide 53. The plug tongue 51 is connected to the output end of the second precision slide 54, so that it performs linear reciprocating motion in the up-down direction, the left-right direction and the front-back direction under the drive of the first electric cylinder 52, the first precision slide 53 and the second precision slide 54, and then accurately inserts into the assembly hole 200a of the mobile phone back cover 200. Among them, the plug tongue 51 can be made of PEI material, so as to achieve flexible plug-in and effectively protect the product. Of course, a buffer layer can also be provided on the surface of the metal plug tongue 51, so as to achieve flexible plug-in operation.

[0033] Combination Figure 2 , Figure 3 and Figure 8 Specifically, the second pressing device 60 further includes a second electric cylinder 62 installed at the top side end of the carrier plate 31, a third electric cylinder 63 connected to the output end of the second electric cylinder 62, and a fourth electric cylinder 64 connected to the output end of the third electric cylinder 63. The pressing plate 61 is connected to the output end of the fourth electric cylinder 64 and is located at the edge of the right side end of the carrier plate 31, so that it performs linear reciprocating motion in the left-right direction, the front-back direction, and the up-down direction under the drive of the second electric cylinder 62, the third electric cylinder 63, and the fourth electric cylinder 64. The moving pressing plate 61 moves from the edge of the carrier plate 31 into the profiling groove 30a, and moves down to abut against the interface end cable 300 in the profiling groove 30a to achieve positioning, or, after the assembly is completed, moves to exit from the profiling groove 30a, and moves up to reset to release the positioning of the interface end cable 300.

[0034] like Figure 8 As shown, specifically, the pressing plate 61 includes a first pressing head 611 and a second pressing head 612 which are spaced apart and connected to the output end of the fourth electric cylinder 64. The first pressing head 611 and the second pressing head 612 respectively press and fix the interface end and the cable of the charging cable 300. The split pressing setting has a better positioning effect. In addition, the upper side end of the first pressing head 611 is relatively thick while the lower side end is relatively thin and has an avoidance slope, which is more conducive to positioning operations in a narrow space.

[0035] The following combination Figures 1 to 8 , the working principle of the assembly fixture 100 of the utility model is described:

[0036] During specific operation, the positioning assembly 30 is driven to rotate by the rotating device 20 to realize the switching between the horizontal position and the side position. The carrier plate 31 realizes the receiving and loading of the mobile phone back cover 200 in a relatively horizontal position and the removal and unloading of the mobile phone back cover 200 after the assembly is completed, and realizes the preliminary assembly of the charging cable 300 and the fastening assembly by screws in the relatively inclined side position; during assembly, the mobile phone back cover 200 on the carrier plate 31 is pressed and fixed by the rotation and movement of the swing arm 41 of the first pressing device 40, and the mobile phone back cover 200 is fixed by the insertion. The tongue 51 of the connecting device 50 moves to the plug-in match with the assembly hole 200a on the mobile phone back cover 200, supports the positioning and guides the initial assembly of the charging cable 300 on the mobile phone back cover 200, and facilitates the accurate docking of the interface end of the charging cable 300 with the assembly hole 200a. The pressing plate 61 of the second pressing device 60 moves accordingly to press and fix the initially plugged charging cable 300, and in the subsequent screwing process, the tongue 51 and the pressing plate 61 are always kept in the positioning state, effectively ensuring the locking accuracy of the screw. In actual production, according to needs, the transfer device 70 can drive the positioning seat 10 to make a linear reciprocating motion in the front and rear directions to realize the movement between different workstations, so as to facilitate the coordination with the feeding device of the mobile phone back cover 200, the feeding device and assembly device of the charging cable 300, and the feeding device and assembly of the screws on the automated assembly line.

[0037] Compared with the prior art, in the assembly fixture 100 provided by the utility model, the positioning component 30 is driven to rotate by the rotating device 20, and the rotating positioning component 30 drives the first pressing device 40, the second pressing device 60 and the plug-in device 50 arranged at different positions thereof to synchronously switch between the horizontal position and the side position, so that when the mobile phone back cover 200 is received at a horizontal position convenient for receiving materials, the positioning component 30 realizes effective fixation of the mobile phone back cover 200 through the carrier plate 31 with the contoured groove 30a and the vacuum suction cup 32 arranged on the carrier plate 31, and safely drives the mobile phone back cover 200 to change its posture, effectively preventing it from shifting during the rotation process; combined with the first pressing device 40, the mobile phone back cover 200 on the carrier plate 31 is pressed and fixed by the rotation and movement of the swing arm 41, thereby further enhancing the stability of the positioning of the mobile phone back cover 200. When the positioning assembly 30 drives the mobile phone back cover 200 to switch to the side position for easy assembly, the plug-in device 50 cooperates with the assembly hole 200a on the mobile phone back cover 200 through the plug tongue 51 that moves relative to the carrier plate 31, so as to support, position and guide the initial assembly of the charging cable 300 on the mobile phone back cover 200, so as to facilitate the accurate docking of the interface end of the charging cable 300 with the assembly hole 200a, and in the subsequent screwing process, the support and positioning of the initial assembly of the mobile phone back cover 200 and the charging cable 300 are always maintained, effectively improving the accuracy of the screw locking, and combined with the second pressing device 60 to press and fix the initial assembly of the charging cable 300, the locking accuracy of the screw is further guaranteed. The assembly fixture 100 provided by the utility model has a simple structure, accurate positioning and high efficiency.

[0038] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A connecting fixture for connecting the charging cable on the back cover of a mobile phone, characterized in that: The assembly fixture includes a positioning seat, a rotating device arranged on the positioning seat, a positioning component connected to the output end of the rotating device, a first pressing device and a second pressing device arranged on the left and right opposite sides of the positioning component, and a plug-in device arranged on the lower side of the positioning component. The positioning component receives and fixes the back cover of the mobile phone through a carrier plate with a contoured groove and a vacuum suction cup arranged on the carrier plate. The rotating device is used to drive the positioning component to rotate so that the positioning component drives the first pressing device, the second pressing device and the plug-in device to switch between a horizontal position and a side position. The first pressing device presses and fixes the back cover of the mobile phone on the carrier plate through a swing arm that rotates and moves relative to the carrier plate. The second pressing device presses and fixes the charging cable preliminarily assembled on the back cover of the mobile phone through a pressure plate that moves relative to the carrier plate. The plug-in device supports and positions the assembly of the charging cable on the back cover of the mobile phone through a plug tongue that moves relative to the carrier plate to be plugged into the assembly hole on the back cover of the mobile phone.

2. The assembly fixture according to claim 1, characterized in that: The positioning seat includes two vertical plates arranged in parallel and spaced apart, the rotating device includes two driving plates and at least one rotating motor, one end of the two driving plates are pivotally connected to the two vertical plates in a one-to-one correspondence, the other ends of the two driving plates are respectively connected to the left and right opposite sides of the rear end of the carrier plate, at least one of the vertical plates is provided with a rotating motor, and the output end of the rotating motor is connected to the driving plate pivotally connected to the vertical plate.

3. The assembly fixture according to claim 1, characterized in that: The positioning assembly further comprises a carrier detachably arranged on the carrier plate, and the contoured groove is provided on the carrier.

4. The assembly fixture according to claim 1, characterized in that: The carrier plate is also provided with an observation port which penetrates the carrier plate along the front-rear direction, and the observation port is arranged at the edge of the lower side end of the profiling groove.

5. The assembly fixture according to claim 1, characterized in that: The first pressing device also includes a rotary pressing cylinder connected to the swing arm, and the rotary pressing cylinder is installed at the edge of the relatively left side of the carrier plate, and is used to drive the swing arm to rotate and move up and down relative to the contoured groove.

6. The assembly fixture according to claim 1, characterized in that: The plug-in device also includes a first electric cylinder connected to the lower side end of the carrier plate, a first precision slide connected to the output end of the first electric cylinder, and a second precision slide connected to the output end of the first precision slide. The plug-in tongue is connected to the output end of the second precision slide to perform linear reciprocating motion in the up-down direction, left-right direction, and front-back direction under the drive of the first electric cylinder, the first precision slide, and the second precision slide.

7. The assembly fixture according to claim 1, characterized in that: The second pressing device also includes a second electric cylinder installed at the opposite top side end of the carrier plate, a third electric cylinder connected to the output end of the second electric cylinder, and a fourth electric cylinder connected to the output end of the third electric cylinder. The pressing plate is connected to the output end of the fourth electric cylinder. The second electric cylinder, the third electric cylinder and the fourth electric cylinder correspondingly drive the pressing plate to perform linear reciprocating motion in the left-right direction, the front-back direction and the up-down direction.

8. The assembly fixture according to claim 7, characterized in that: The pressing plate includes a first pressing head and a second pressing head which are spaced apart and connected to the output end of the fourth electric cylinder. The first pressing head and the second pressing head respectively press and fix the interface end and the charging cable. The upper end of the first pressing head is relatively thick while the lower end is relatively thin and has an avoidance slope.

9. The assembly fixture according to claim 1, characterized in that: The inserting tongue is arranged in parallel with the carrier plate.

10. The assembly fixture according to claim 1, characterized in that: The assembly fixture also includes a transfer device, and the positioning seat is slidably arranged on the transfer device and performs linear reciprocating motion along the front-rear direction under the driving of the transfer device.

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