Running-in jig and applied hinge assembly

Abstract

The utility model relates to the technical field of hinges and running-in jigs, in particular to a running-in jig and an applied hinge assembly, which comprise a bottom plate, a supporting seat and a rotating assembly, the supporting seat and the rotating assembly are mounted on the bottom plate, the supporting seat is used for fixing a support of a hinge, and the rotating assembly is provided with a rotating column, a rocker arm and a rocking cylinder. The rotating column and the rocking cylinder are fixedly connected to the bottom plate, a clamping gap is formed in the side, facing a hinge, of the rocker arm and used for clamping a supporting arm of the hinge, one end of the rocker arm is rotationally connected to the rotating column, and the other end of the rocker arm is in transmission connection with a piston rod of the rocking cylinder, so that the rocking cylinder operates to drive the rocker arm to rotate. And then rotating running-in operation is carried out on the hinge support arm. In conclusion, the running-in jig can carry out convenient and fast rotating running-in operation on the hinge assembly, the cost of the running-in jig can be reduced, the production benefit is improved, the running-in process is accelerated, and the running-in efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges and running-in jigs, in particular to a running-in jig and a hinge assembly applied thereto. Background Art

[0002] A hinge is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials. For example, the hinge installed on the lid of an automotive armrest box can make the opening and closing of the lid smoother and more stable.

[0003] At present, most hinge assemblies on the market are directly assembled, debugged for torque and then shipped. Often, products that pass the tests in the company will have torque problems and torque deviations after reaching the client. The reason lies in problems or defects such as gaps, burrs, and insufficient material stress during the assembly process of the hinge assembly, which easily reduces the yield rate of the hinge assembly.

[0004] After the hinge assembly is processed, it needs to be assembled. After assembly, due to reasons such as fitting tolerances, assembly tolerances, or surface roughness of parts, the torque is generally large and cannot meet the use standards. Therefore, rotational running-in is required to stably reach the torque range of the use standards. The existing manual running-in has low efficiency, differences in running-in angles each time, and uncontrollable running-in frequencies, and cannot meet the production requirements.

[0005] Later, running-in jigs for hinge assemblies also emerged, which are commonly used for running-in automotive armrest box hinges. During the assembly process of the hinge assembly, too large or too small riveting strength will affect the torque of the product. Therefore, generally, manufacturers will perform 100% running-in on the products and then conduct torque tests. However, the existing running-in jigs for hinge assemblies in the industry are relatively complex and costly. Summary of the Utility Model

[0006] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0007] The utility model provides a running-in jig, including a bottom plate, and a support seat and a rotating assembly installed on the bottom plate. The support seat is used to fix the bracket of the hinge. The rotating assembly is provided with a rotating column, a rocker arm, and a rocking cylinder. The rotating column and the rocking cylinder are respectively fixed to the bottom plate. A clamping gap is provided on the side of the rocker arm facing the hinge, and the clamping gap is used to clamp the arm of the hinge. One end of the rocker arm is rotatably connected to the rotating column, and the other end thereof is in transmission connection with the piston rod of the rocking cylinder, so that the rocking cylinder operates to drive the rocker arm to rotate, and further perform a rotational running-in operation on the hinge arm.

[0008] As a further solution of the utility model: The rotating assembly is further provided with a adapter, one end of the adapter is fixedly connected to the piston rod of the rocking cylinder, and the other end thereof is in driving connection with the rocker arm.

[0009] As a further solution of the utility model: One end of the rocker arm connected to the adapter is provided with a through hole, one end of the adapter connected to the rocker arm is provided with a rotating shaft, and the rotating shaft and the through hole cooperate with each other to form a rotating connection.

[0010] As a further solution of the utility model: One end of the rocker arm connected to the adapter is provided with a long hole, the long side direction of the long hole is parallel to the clamping gap, one end of the adapter connected to the rocker arm is provided with a rotating shaft, and the rotating shaft and the long hole cooperate with each other to enable the rotating shaft to slide along the long side direction of the long hole.

[0011] As a further solution of the utility model: The rotating column is provided with a limiting block, and the rocker arm is respectively provided with limiting protrusions on both sides corresponding to the limiting block, and the limiting block and the limiting protrusions cooperate with each other to limit the rotation angle of the rocker arm.

[0012] As a further solution of the utility model: The rotating assembly is provided with a first rotating part and a second rotating part, and the first rotating part and the second rotating part are respectively provided with a rotating column, a rocker arm and a rocking cylinder, so as to respectively perform a rotation and running-in operation on the first arm and the second arm of the hinge.

[0013] As a further solution of the utility model: It further includes a docking assembly, the docking assembly is provided with a horizontal chute, a horizontal slider and a docking cylinder, the horizontal chute and the docking cylinder are respectively fixedly connected to the bottom plate, the horizontal slider is provided with a horizontal guide rail, and the horizontal guide rail and the horizontal chute cooperate with each other to enable the horizontal slider to be slidably connected to the bottom plate, and the horizontal slider is in driving connection with the piston rod of the docking cylinder, so that the docking cylinder drives the horizontal slider to move horizontally along the horizontal chute; the rotating assembly is fixedly connected to the horizontal slider.

[0014] As a further solution of the utility model: The docking assembly is provided with a first docking part and a second docking part, and the first docking part and the second docking part are respectively provided with a horizontal chute, a horizontal slider and a docking cylinder, so as to respectively perform a clamping and fixing operation on the first arm and the second arm of the hinge.

[0015] As a further solution of the present utility model: it further includes a pressing-down component, and the pressing-down component is used to fix the bracket of the hinge on the support seat; the pressing-down component is provided with a pressing-down pillar, a pressing-down cylinder, a vertical chute, a vertical slider and a pressing-down abutting block. The pressing-down pillar is fixedly connected to the bottom plate, the pressing-down cylinder and the vertical chute are respectively fixedly connected to the pressing-down pillar. The vertical slider is provided with a vertical guide rail, and the vertical guide rail and the vertical chute cooperate with each other so that the vertical slider is slidably connected to the vertical chute. One side of the vertical slider is fixedly connected to the pressing-down abutting block, and the other side thereof forms a transmission connection with the piston rod of the pressing-down cylinder.

[0016] The present utility model also provides a hinge assembly, and uses the above-mentioned running-in jig to perform a rotation running-in operation on the hinge.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. By arranging the rotating column to cooperate with the rocker arm, the rocking cylinder can drive the rocker arm to rotate a certain angle, so that the rocker arm synchronously rotates the supporting arm of the hinge, and then the rotation running-in operation is realized. In particular, by using the rotating shaft of the adapter and the long hole of the rocker arm, the up-and-down driving of the rocker arm can be realized, reducing the use of connecting rods and bearings, which can reduce costs and improve efficiency.

[0019] 2. Also, by arranging the docking component, the supporting arm of the hinge can be clamped and fixed between the clamping gaps of the rocker arm, making the installation of the hinge by the running-in jig more convenient and fast, and improving the efficiency of the whole running-in process.

[0020] 3. Also, through the setting of the pressing-down component, the bracket of the hinge can be quickly fixed on the support seat, which can not only speed up the feeding speed of the hinge, but also form a stable fixing effect on the hinge, so that it will not shake during the running-in process and avoid damaging the hinge.

[0021] Therefore, through the above improvements, the present utility model can provide a running-in jig and an applied hinge assembly, enabling the running-in jig to perform a convenient and fast rotation running-in operation on the hinge assembly, reducing the cost of the running-in jig, improving production efficiency, accelerating the running-in process, and improving the running-in efficiency.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural view of the present invention in the state of placing the hinge;

[0025] Figure 2 is a schematic structural view of the present invention in the state of fixing the hinge;

[0026] Figure 3 is a schematic structural view of the present invention in the state of running-in the hinge;

[0027] Figure 4 is Figure 3 a partial enlarged view of part A in

[0028] Figure 5 is a schematic cross-sectional view of the running-in fixture of the present invention;

[0029] Figure 6 is Figure 5 a partial enlarged view of part B in

[0030] The reference numerals and names in the drawings are as follows:

[0031] 10 Base plate; 11 Support seat; 20 Rotating assembly; 21 Rocking cylinder; 22 Adapter; 23 Rotating shaft; 24 Rotating column; 25 Limiting block; 31 Rocking arm; 32 Long hole; 33 Clamping gap; 34 Limiting protrusion; 35 Avoidance hole; 40 Docking assembly; 41 Horizontal sliding groove; 42 Horizontal sliding block; 43 Horizontal guide rail; 44 Docking cylinder; 50 Pressing-down assembly; 51 Pressing-down support pillar; 52 Pressing-down cylinder; 53 Vertical sliding groove; 54 Vertical sliding block; 55 Vertical guide rail; 56 Pressing-down abutting block; 60 Hinge; 61 Bracket; 62 Pin shaft; 63 First support arm; 64 Second support arm. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] Please refer to Figures 1 to 6, in the embodiment of the present utility model, a running-in fixture includes a bottom plate 10, a support seat 11 and a rotating assembly 20 mounted on the bottom plate 10. The support seat 11 is used to fix the bracket 61 of the hinge 60. The rotating assembly 20 is provided with a rotating column 24, a rocker arm 31 and a rocking cylinder 21. The rotating column 24 and the rocking cylinder 21 are respectively fixed to the bottom plate 10. On the side of the rocker arm 31 facing the hinge 60, there is a clamping gap 33 for clamping the arm of the hinge 60. One end of the rocker arm 31 is rotatably connected to the rotating column 24, and the other end thereof is in transmission connection with the piston rod of the rocking cylinder 21, so that the rocking cylinder 21 operates to drive the rocker arm 31 to rotate, and then the running-in operation of the arm of the hinge 60 is carried out.

[0034] Specifically, for the running-in fixture of the hinge 60 assembly of the present utility model, the hinge 60 assembly is mainly fixed on the fixture by profiling, and the rotating running-in operation of the hinge 60 assembly is carried out simply and quickly by combining a power supply, a cylinder, a slider, a measurement relay and a time relay.

[0035] First, the placement position of the hinge 60 assembly is profiled on the fixture. For example, a placement platform corresponding to the bracket 61 of the hinge 60 is provided on the support seat 11, and positioning pins corresponding to the existing openings of the bracket 61 of the hinge 60 can also be provided, so that the bracket 61 of the hinge 60 can be accurately placed on the support seat 11.

[0036] Then, a clamping gap 33 corresponding to the arm of the hinge 60 is provided on the rocker arm 31, so that the rocker arm 31 can clamp and fix the arm of the hinge 60. At the same time, at the position of the rocker arm 31 corresponding to the pin shaft 62 of the hinge 60, an avoidance hole 35 can also be provided, so that the nut part of the pin shaft 62 can be accommodated in the avoidance hole 35.

[0037] The inner space of the groove of the clamping gap 33 of the rocker arm 31 can have a clearance of 0.05 mm on one side, and the inner space of the avoidance hole 35 can have a clearance of 0.5 mm on one side to prevent damage to the product. Thus, the hinge 60 assembly product is fixed on the fixture, and the hinge 60 assembly product is better combined with the running-in fixture to make the running-in smoother.

[0038] Secondly, the rotating running-in operation of the hinge 60 assembly is carried out by combining components such as a power supply, a cylinder, a slider, a measurement relay and a time relay. The on-off of the circuit can be controlled by setting the number of swings of the measurement relay, and any number of swings between 0 and 9999 can be set, that is, the number of times of rotating running-in of the hinge 60. The frequency of the swing of the running-in fixture can also be controlled by setting the time relay to connect or disconnect the circuit according to a predetermined time, that is, the operating frequency of the rocking cylinder 21, which is also the frequency of rotating running-in of the hinge 60 assembly.

[0039] Among them, the specific operation principle includes: First, place the hinge 60 assembly to be run-in on the support base 11, and then start the power supply to energize the relay. The downward pressure cylinder 52 is started, pushing the vertical slider 54 to move downward, thereby fixing the bracket 61 of the hinge 60.

[0040] Subsequently, another relay is energized, and the docking delay timer starts to count down. The docking cylinders 44 on both sides are started simultaneously, pushing the middle parts of the horizontal sliders 42 on both sides to slide, so that the rocker arms 31 clamp and fix the support arms of the hinge 60.

[0041] Finally, another relay is energized, and the rotation delay timer starts to count down. The rocking cylinders 21 on both sides are started simultaneously, and start to operate according to the set number of swings and swing frequency. The running-in jig starts to swing, thereby starting the rotation running-in operation on the hinge 60.

[0042] The utility model combines a metering relay and a time relay, and can set any number of swings between 0 and 9999, as well as the swing frequency. It has a simple structure, convenient operation and strong practicability, and greatly improves the work efficiency.

[0043] Among them, the downward pressure cylinder 52 can be set with a cylinder product of the TGN40X100-S model of the STNC brand, and the rocking cylinder 21 and the docking cylinder 44 can be set with a cylinder product of the TGN32X40-S model of the STNC brand. And the above-mentioned cylinders are all provided with magnetic rings, and the movement position of the cylinders can be sensed by installing magnetic switches on the cylinders, so as to ensure that the movement positions of the corresponding components meet the operation requirements.

[0044] In addition, the delay relay can be set with a product of the AH3-3 model of the CKHKC brand, the metering relay can be set with a product of the ZN48 model of the Xinling brand, the time relay can be set with a product of the HHS6 model of the Xinling brand, and other ordinary relays can be set with a product of the YJ2N-GS model of the Yijia brand. The specific circuit connection method can be connected by the general connection method in the prior art so that it can drive the running-in jig to operate.

[0045] Such as Figures 3 to 6As shown, preferably, the rotational connection between the rocker arm 31 and the rotating column 24 can be achieved by connecting through bearings and shaft rods and other existing technologies. Moreover, on one side of the rocker arm 31 facing the pin shaft 62 of the hinge 60, there is an avoidance hole 35. The avoidance hole 35 is coaxially arranged with the shaft hole of the rocker arm 31 connecting the rotating column 24. The avoidance hole 35 is used to avoid the pin shaft 62 of the hinge 60. At the same time, the rotational torque of the rocker arm 31 on the branch arm of the hinge 60 is coaxially arranged with the pin shaft 62 of the hinge 60, avoiding damage to the pin shaft 62 or the structure of the hinge 60. The rotating assembly 20 is also provided with a swivel joint 22. One end of the swivel joint 22 is fixedly connected to the piston rod of the rocking cylinder 21, and the other end thereof is in transmission connection with the rocker arm 31. One end of the rocker arm 31 connecting the swivel joint 22 is provided with an elongated hole 32. The long side direction of the elongated hole 32 is parallel to the clamping gap 33. One end of the swivel joint 22 connecting the rocker arm 31 is provided with a rotating shaft 23. The rotating shaft 23 and the elongated hole 32 cooperate with each other, enabling the rotating shaft 23 to slide along the long side direction of the elongated hole 32.

[0046] Specifically, the piston rod of the rocking cylinder 21 drives the swivel joint 22 to move up and down, causing the rotating shaft 23 to move up and down synchronously within the elongated hole 32. Since the other end of the rocker arm 31 is rotationally connected to the rotating column 24, the rotating shaft 23 drives the other end of the rocker arm 31 to rotate. The distance between one end of the rotating rocker arm 31 and the axis of the swivel joint 22 will change as the rocker arm 31 rotates. Therefore, by setting the elongated hole 32, the rotating shaft 23 can slide along the long side direction of the elongated hole 32, thereby correspondingly changing the distance from the rocker arm 31, enabling it to smoothly drive the rocker arm 31 to rotate. It can be understood that a connection scheme of a connecting rod and a bearing can also be adopted between the rocker arm 31 and the piston rod. However, the cost of the connecting rod and the bearing is relatively high. By setting the elongated hole 32 and the rotating shaft 23, not only can the same driving of the rocker arm 31 to rotate be achieved, but also costs can be saved.

[0047] As Figures 1 to 3 shown, preferably, the rotating column 24 is provided with a limiting block 25. The rocker arm 31 is respectively provided with limiting protrusions 34 on both sides corresponding to the limiting block 25. The limiting block 25 and the limiting protrusions 34 cooperate with each other to limit the rotation angle of the rocker arm 31.

[0048] Specifically, the setting of the limiting block 25 and the limiting protrusions 34 can prevent the rocker arm 31 from rotating at too large an angle and damaging the hinge 60.

[0049] As Figure 1 and Figure 5As shown, preferably, it further includes a docking component 40. The docking component 40 is provided with a horizontal chute 41, a horizontal slider 42, and a docking cylinder 44. The horizontal chute 41 and the docking cylinder 44 are respectively fixed to the bottom plate 10. The horizontal slider 42 is provided with a horizontal guide rail 43. The horizontal guide rail 43 and the horizontal chute 41 cooperate with each other, so that the horizontal slider 42 is slidably connected to the bottom plate 10. The horizontal slider 42 is in transmission connection with the piston rod of the docking cylinder 44, so that the docking cylinder 44 drives the horizontal slider 42 to move horizontally along the horizontal chute 41. The rotating component 20 is fixed to the horizontal slider 42.

[0050] Specifically, after the docking cylinder 44 operates, it can drive the horizontal slider 42 to drive the rotating component 20 to move horizontally, so that the clamping gap 33 of the rocker arm 31 can be automatically sleeved on the branch arm of the hinge 60 and clamped and fixed to improve production efficiency.

[0051] As Figure 2 and Figure 3 As shown, preferably, it further includes a pressing component 50. The pressing component 50 is used to fix the bracket 61 of the hinge 60 on the support seat 11. The pressing component 50 is provided with a pressing pillar 51, a pressing cylinder 52, a vertical chute 53, a vertical slider 54, and a pressing abutting block 56. The pressing pillar 51 is fixed to the bottom plate 10. The pressing cylinder 52 and the vertical chute 53 are respectively fixed to the pressing pillar 51. The vertical slider 54 is provided with a vertical guide rail 55. The vertical guide rail 55 and the vertical chute 53 cooperate with each other, so that the vertical slider 54 is slidably connected to the vertical chute 53. One side of the vertical slider 54 is fixed to the pressing abutting block 56, and the other side is in transmission connection with the piston rod of the pressing cylinder 52.

[0052] Specifically, after the pressing cylinder 52 operates, it drives the vertical slider 54 to move vertically along the vertical chute 53, so as to drive the pressing abutting block 56 to move up and down synchronously, so that the pressing abutting block 56 can abut and fix part of the bracket 61 of the hinge 60 on the support seat 11.

[0053] As Figures 1 to 3 As shown, preferably, the rotating component 20 is provided with a first rotating part and a second rotating part. The first rotating part and the second rotating part are respectively provided with a rotating column 24, a rocker arm 31, and a rocking cylinder 21, so as to perform rotation and running-in operations on the first branch arm 63 and the second branch arm 64 of the hinge 60 respectively. The docking component 40 is provided with a first docking part and a second docking part. The first docking part and the second docking part are respectively provided with a horizontal chute 41, a horizontal slider 42, and a docking cylinder 44, so as to perform clamping and fixing operations on the first branch arm 63 and the second branch arm 64 of the hinge 60 respectively.

[0054] Since the hinge 60 assembly usually has a first arm 63 and a second arm 64 on each of its two sides respectively, in order to avoid unbalanced rotation of the arms, which may cause damage to the hinge 60 product, it is preferably to provide two sets of rotation assemblies 20 and two sets of docking assemblies 40, so as to respectively perform docking fixation and rotational running-in operations on the first arm 63 and the second arm 64, making the whole running-in operation process smoother, improving the running-in efficiency, and enhancing the product quality.

[0055] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A running-in jig, characterized in that: The invention comprises a base plate (10), a support seat (11) and a rotating assembly (20) mounted on the base plate (10), wherein the support seat (11) is used to fix a bracket (61) of a hinge (60), and the rotating assembly (20) is provided with a rotating column (24), a rocker arm (31) and a rocking cylinder (21), wherein the rotating column (24) and the rocking cylinder (21) are respectively fixed to the base plate (10), and a clamping gap (33) is provided on a side of the rocker arm (31) facing the hinge (60), wherein the clamping gap (33) is used to clamp the support arm of the hinge (60), and one end of the rocker arm (31) is rotatably connected to the rotating column (24), and the other end thereof is transmission-connected to a piston rod of the rocking cylinder (21), so that the rocking cylinder (21) is operated to drive the rocker arm (31) to rotate, thereby performing a rotational running-in operation on the support arm of the hinge (60).

2. A running-in jig according to claim 1, characterized in that: The rotating assembly (20) is further provided with an adapter (22), one end of which is fixedly connected to the piston rod of the rocking cylinder (21), and the other end of which is in transmission connection with the rocking arm (31).

3. A running-in jig according to claim 2, characterized in that: One end of the rocker arm (31) connected to the adapter (22) is provided with a through hole, and one end of the adapter (22) connected to the rocker arm (31) is provided with a rotating shaft (23), and the rotating shaft (23) and the through hole cooperate with each other to form a rotational connection.

4. A running-in jig according to claim 2, characterized in that: One end of the rocker arm (31) connected to the adapter (22) is provided with a long hole (32), the long side direction of the long hole (32) is parallel to the clamping gap (33), and one end of the adapter (22) connected to the rocker arm (31) is provided with a rotating shaft (23), the rotating shaft (23) and the long hole (32) cooperate with each other, so that the rotating shaft (23) can slide along the long side direction of the long hole (32).

5. A running-in jig according to claim 1, characterized in that: The rotating column (24) is provided with a limit block (25), and the rocker arm (31) is provided with limit protrusions (34) on both sides corresponding to the limit block (25), and the limit block (25) and the limit protrusions (34) cooperate with each other to limit the rotation angle of the rocker arm (31).

6. A running-in jig according to claim 1, characterized in that: The rotating assembly (20) is provided with a first rotating part and a second rotating part, and the first rotating part and the second rotating part are respectively provided with a rotating column (24), a rocking arm (31) and a rocking cylinder (21), so as to respectively perform a rotating running-in operation on the first support arm (63) and the second support arm (64) of the hinge (60).

7. A running-in jig according to claim 1, characterized in that: The invention also comprises a docking assembly (40), wherein the docking assembly (40) is provided with a transverse slide groove (41), a transverse slider (42) and a docking cylinder (44), wherein the transverse slide groove (41) and the docking cylinder (44) are respectively fixed to the bottom plate (10), and the transverse slider (42) is provided with a transverse guide rail (43), wherein the transverse guide rail (43) and the transverse slide groove (41) cooperate with each other so that the transverse slider (42) is slidably connected to the bottom plate (10), and the transverse slider (42) is transmission-connected to the piston rod of the docking cylinder (44) so ​​that the docking cylinder (44) drives the transverse slider (42) to move transversely along the transverse slide groove (41); and the rotating assembly (20) is fixed to the transverse slider (42).

8. A running-in jig according to claim 7, characterized in that: The docking assembly (40) is provided with a first docking portion and a second docking portion, and the first docking portion and the second docking portion are respectively provided with a transverse sliding groove (41), a transverse sliding block (42) and a docking cylinder (44), so as to respectively perform a clamping and fixing operation on the first support arm (63) and the second support arm (64) of the hinge (60).

9. A running-in jig according to claim 1, characterized in that: The invention also includes a pressing component (50), wherein the pressing component (50) is used to fix the bracket (61) of the hinge (60) on the support seat (11); the pressing component (50) is provided with a pressing support (51), a pressing cylinder (52), a vertical slide groove (53), a vertical slider (54) and a pressing block (56); the pressing support (51) is fixed to the bottom plate (10); the pressing cylinder (52) and the vertical slide groove (53) are respectively fixed to the pressing support (51); the vertical slider (54) is provided with a vertical guide rail (55); the vertical guide rail (55) and the vertical slide groove (53) cooperate with each other so that the vertical slider (54) is slidably connected to the vertical slide groove (53); one side of the vertical slider (54) is fixed to the pressing block (56), and the other side thereof is transmission-connected to the piston rod of the pressing cylinder (52).

10. A hinge assembly, characterized in that: Using a running-in jig as described in claims 1 to 9, a rotational running-in operation is performed on the hinge (60).

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