A Turbocharged Electronic Control Actuator Angle Calibration Device and Method

Abstract

The present invention discloses an angle calibration device for a turbocharged electronic control actuator, which comprises a base. Above the base, there is a platform for installing the actuator. A rotating shaft is provided on the base, and the upper end of the rotating shaft passes through the platform, and the rotating shaft is rotationally connected to both the base and the platform. Above the platform, there is a calibration pendulum block. One end of the calibration pendulum block is fixedly connected to the rotating shaft, and the other end of the calibration pendulum block is meshed with the output gear of the actuator. An angle indicating mechanism for indicating the swinging angle of the calibration pendulum block is provided on the platform. A limiting pendulum block is provided between the base and the platform, and a limiting adjustment mechanism is provided on the base. One end of the limiting pendulum block is fixedly connected to the rotating shaft, and the other end of the limiting pendulum block is arranged adjacent to the limiting adjustment mechanism. The swinging angle of the limiting pendulum block is controlled by the limiting adjustment mechanism. The present invention can simplify the calibration process, reduce the number of devices, lower the production cost, save space and is easy to carry.

Description

Technical Field

[0001] The present invention relates to calibration equipment, and in particular to an angle calibration device and method for a turbocharged electronic control actuator. Background Art

[0002] In the prior art, before the production or factory of an automotive turbocharged electronic control actuator, the actuator is defined for angle output according to the vehicle model. After the angle definition is completed, the output angle of the actuator is corrected. During the correction process, the angle calibration is generally directly carried out on the turbine assembly. However, since each turbine only corresponds to one calibration angle, for turbines of multiple types and parameters, the same actuator will set multiple output angles according to different turbine versions. To meet the calibration requirements, generally, a large number of turbine assemblies are equipped during the production and manufacturing process, and the calibration process is relatively cumbersome. In addition, the prior art not only requires enterprises to bear high equipment costs, but also these devices occupy space and are difficult to carry, having many defects. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide, in view of the deficiencies of the prior art, a turbocharged electronic control actuator angle calibration device and method that can simplify the calibration process, reduce the number of devices, lower production costs, save space, and be easy to carry.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions.

[0005] The present invention discloses a turbocharged electronic control actuator angle calibration device, which includes a base. Above the base, there is a platform for installing the actuator. On the base, there is a rotating shaft. The upper end of the rotating shaft passes through the platform, and the rotating shaft is rotationally connected to both the base and the platform. Above the platform, there is a calibration pendulum block. One end of the calibration pendulum block is fixedly connected to the rotating shaft, and the other end of the calibration pendulum block meshes with the output gear of the actuator. On the platform, there is an angle indicating mechanism for indicating the swinging angle of the calibration pendulum block. Between the base and the platform, there is a limiting pendulum block. On the base, there is a limiting adjustment mechanism. One end of the limiting pendulum block is fixedly connected to the rotating shaft, and the other end of the limiting pendulum block is adjacent to the limiting adjustment mechanism. The swinging angle of the limiting pendulum block is controlled by the limiting adjustment mechanism. During calibration, first adjust the limiting adjustment mechanism to make the swinging angle of the limiting pendulum block consistent with the set output angle of the actuator. Then, control the actuator to operate to the set output angle, and read the swinging angle value of the calibration pendulum block according to the angle indicating mechanism, and use this swinging angle value as the calibration parameter of the actuator.

[0006] Preferably, the calibration pendulum block is a sector pendulum block.

[0007] Preferably, the angle indicating mechanism is an angle scale provided on the platform.

[0008] Preferably, the limit adjusting mechanism includes a left vertical plate and a right vertical plate. A left adjusting rod is provided on the left vertical plate, and a right adjusting rod is provided on the right vertical plate. The left adjusting rod and the right adjusting rod are respectively arranged on both sides of the limit swing block, and the swing angle of the limit swing block is controlled by adjusting the distance between the left adjusting rod and the right adjusting rod.

[0009] Preferably, the left adjusting rod is a screw rod screwed onto the left vertical plate, and the right adjusting rod is a screw rod screwed onto the right vertical plate.

[0010] Preferably, two left adjusting rods are provided on the left vertical plate and arranged in parallel along the horizontal direction, and two right adjusting rods are provided on the right vertical plate and arranged in parallel along the horizontal direction.

[0011] Preferably, the platform is fixed to the tops of the left vertical plate and the right vertical plate.

[0012] Preferably, a vertically arranged side plate is fixed at the edge of the base. The side plate is adjacent to the right vertical plate. A flap is provided at the top of the side plate and the two are hinged. An installation position for placing the actuator is formed between the flap and the platform. A lock catch capable of locking with the flap is provided on the left vertical plate. Through the cooperation of the side plate, the flap, the platform and the lock catch, the actuator is fixed in the installation position so that the calibration swing block remains engaged with the output gear of the actuator.

[0013] Preferably, a plurality of vertically arranged positioning rods that can be inserted into the actuator are fixed on the platform.

[0014] Preferably, the calibration swing block and the limit swing block are vertically aligned.

[0015] A method for calibrating the angle of a turbocharged electronic control actuator, which is implemented based on a device. The device includes a base. Above the base, there is a platform for installing the actuator. On the base, there is a rotating shaft. The upper end of the rotating shaft passes through the platform, and the rotating shaft is rotatably connected to both the base and the platform. Above the platform, there is a calibration pendulum block. One end of the calibration pendulum block is fixedly connected to the rotating shaft, and the other end of the calibration pendulum block meshes with the output gear of the actuator. On the platform, there is an angle indicating mechanism for indicating the swinging angle of the calibration pendulum block. Between the base and the platform, there is a limit pendulum block. On the base, there is a limit adjustment mechanism. One end of the limit pendulum block is fixedly connected to the rotating shaft, and the other end of the limit pendulum block is arranged adjacent to the limit adjustment mechanism. The swinging angle of the limit pendulum block is controlled by the limit adjustment mechanism. The method includes the following steps: Step S1, install the actuator on the platform, and at the same time connect the connection line of the actuator to the calibration host. Start the calibration software installed in the calibration host, and set the output angle of the actuator through the calibration software. Step S2, adjust the swinging stroke of the limit pendulum block by adjusting the limit adjustment mechanism, so that the swinging angle of the limit pendulum block is consistent with the set output angle of the actuator. Step S3, the calibration host controls the actuator to operate to the set output angle. Step S4, read the swinging angle value of the calibration pendulum block according to the angle indicating mechanism. Step S5, use the read swinging angle value as the calibration parameter of the actuator and input it into the calibration software.

[0016] Preferably, the limit adjustment mechanism includes a left vertical plate and a right vertical plate. On the left vertical plate, there is a left adjustment rod. On the right vertical plate, there is a right adjustment rod. The left adjustment rod and the right adjustment rod are respectively arranged on both sides of the limit pendulum block. The swinging angle of the limit pendulum block is controlled by adjusting the distance between the left adjustment rod and the right adjustment rod. The left adjustment rod is a screw rod screwed into the left vertical plate, and the right adjustment rod is a screw rod screwed into the right vertical plate. In step S2, the swinging stroke of the limit pendulum block is adjusted by screwing the left adjustment rod and the right adjustment rod.

[0017] Preferably, in step S3, when the operating stroke of the actuator exceeds or is less than the swinging stroke of the limit pendulum block, the swinging stroke of the limit pendulum block is finely adjusted by screwing the left adjustment rod and the right adjustment rod.

[0018] Preferably, a vertically arranged side plate is fixed at the edge of the base. The side plate is arranged adjacent to the right vertical plate. A flap is provided at the top of the side plate and the two are hinged. An installation position for placing the actuator is formed between the flap and the platform. A lock catch capable of locking with the flap is provided on the left vertical plate. In step S1, the actuator is fixed at the installation position by the cooperation of the side plate, the flap, the platform and the lock catch, so that the calibration pendulum block remains engaged with the output gear of the actuator.

[0019] For the turbocharged electronic control actuator angle calibration device disclosed in the present invention, during calibration, first install the actuator on the platform, and at the same time connect the connecting wire of the actuator to the existing calibration host. Start the calibration software installed in the calibration host, set the output angle of the actuator through the calibration software, and then adjust the limit adjustment mechanism to adjust the swing stroke of the limit pendulum block so that the swing angle of the limit pendulum block is consistent with the set output angle of the actuator. Start calibration, use the calibration host to control the actuator to operate to the set output angle, then read the swing angle value of the calibration pendulum block according to the angle indication mechanism, and finally use the read swing angle value as the calibration parameter of the actuator and input it into the calibration software to complete the calibration process. Compared with the prior art, the present invention does not need to configure multiple turbo devices of different models, greatly reducing the number of devices and effectively reducing the production cost of enterprises. At the same time, the present invention does not involve multiple turbines during the calibration process, thus simplifying the calibration process. In addition, the present invention has a small and compact structure, saves space, is convenient for movement and carrying, can not only perform in-site calibration, but also go to the site for calibration, which better meets the needs of users and enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the turbocharged electronic control actuator angle calibration device of the present invention;

[0021] Figure 2 is a side view of the turbocharged electronic control actuator angle calibration device of the present invention;

[0022] Figure 3 is a partial structure diagram of the turbocharged electronic control actuator angle calibration device of the present invention;

[0023] Figure 4 is a partial decomposition of the turbocharged electronic control actuator angle calibration device of the present invention Figure 1 ;

[0024] Figure 5 is a partial decomposition of the turbocharged electronic control actuator angle calibration device of the present invention Figure 2 . DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0026] The present invention discloses a turbocharged electronic control actuator angle calibration device. As shown in Figures 1 to 5 , it includes a base 1. Above the base 1, there is a platform 2 for installing an actuator 100. On the base 1, there is a rotating shaft 3. The upper end of the rotating shaft 3 passes through the platform 2, and the rotating shaft 3 is rotatably connected to both the base 1 and the platform 2. Above the platform 2, there is a calibration pendulum block 4. One end of the calibration pendulum block 4 is fixedly connected to the rotating shaft 3, and the other end of the calibration pendulum block 4 meshes with the output gear 101 of the actuator 100. On the platform 2, there is an angle indicating mechanism 20 for indicating the swing angle of the calibration pendulum block 4. Between the base 1 and the platform 2, there is a limit pendulum block 5. On the base 1, there is a limit adjusting mechanism. One end of the limit pendulum block 5 is fixedly connected to the rotating shaft 3, and the other end of the limit pendulum block 5 is arranged adjacent to the limit adjusting mechanism. The swing angle of the limit pendulum block 5 is controlled by the limit adjusting mechanism.

[0027] During calibration, first adjust the limit adjusting mechanism to make the swing angle of the limit pendulum block 5 consistent with the set output angle of the actuator 100. Then control the actuator 100 to operate to the set output angle, and read the swing angle value of the calibration pendulum block 4 according to the angle indicating mechanism 20, and use this swing angle value as the calibration parameter of the actuator 100.

[0028] When the above device is calibrated, first install the actuator 100 on the platform 2, and at the same time connect the connecting wire 102 of the actuator 100 to the existing calibration host. Start the calibration software installed in the calibration host, set the output angle of the actuator 100 through the calibration software, and then adjust the swing stroke of the limit pendulum block 5 by adjusting the limit adjusting mechanism, so that the swing angle of the limit pendulum block 5 is consistent with the set output angle of the actuator 100. Start calibration, use the calibration host to control the actuator 100 to operate to the set output angle, then read the swing angle value of the calibration pendulum block 4 according to the angle indicating mechanism 20, and finally use the read swing angle value as the calibration parameter of the actuator 100 and input it into the calibration software to complete the calibration process. Compared with the prior art, the present invention does not need to configure multiple turbo devices of different models, greatly reducing the number of devices and effectively reducing the production cost of enterprises. At the same time, the present invention does not involve multiple turbines during the calibration process, thus simplifying the calibration process. In addition, the present invention has a small and compact structure, saves space, is convenient for movement and carrying, can not only perform in-site calibration, but also go to the site for calibration, which better meets the needs of users and enterprises.

[0029] In this embodiment, the calibration pendulum block 4 is a sector-shaped pendulum block. However, this is only a preferred embodiment of the present invention. In other embodiments of the present invention, the calibration pendulum block 4 can also be made into a semi-circular or circular shape, and these replacement shapes all fall within the protection scope of the present invention.

[0030] In order to facilitate observation and reading, in this embodiment, the angle indicating mechanism 20 is an angle scale line provided on the platform 2.

[0031] Regarding the preferred structure of the limit adjusting mechanism, in this embodiment, the limit adjusting mechanism includes a left vertical plate 6 and a right vertical plate 7. A left adjusting rod 60 is provided on the left vertical plate 6, and a right adjusting rod 70 is provided on the right vertical plate 7. The left adjusting rod 60 and the right adjusting rod 70 are respectively arranged on both sides of the limit pendulum block 5, and the swinging angle of the limit pendulum block 5 is controlled by adjusting the distance between the left adjusting rod 60 and the right adjusting rod 70.

[0032] In this embodiment, the left adjusting rod 60 is a screw rod screwed onto the left vertical plate 6, and the right adjusting rod 70 is a screw rod screwed onto the right vertical plate 7.

[0033] Further, two left adjusting rods 60 are provided on the left vertical plate 6 and arranged in parallel along the horizontal direction, and two right adjusting rods 70 are provided on the right vertical plate 7 and arranged in parallel along the horizontal direction.

[0034] The above-mentioned limit adjusting mechanism is only a preferred embodiment of the present invention and is not used to limit the present invention. In other embodiments of the present invention, other functional equivalent structures can also be used as replacements, and these replacement solutions should also be included in the protection scope of the present invention.

[0035] In this embodiment, the platform 2 is fixed to the tops of the left vertical plate 6 and the right vertical plate 7.

[0036] In order to lock the actuator 100 onto the platform 2, in this embodiment, a vertically arranged side plate 8 is fixed at the edge of the base 1. The side plate 8 is adjacent to the right vertical plate 7. A flap 9 is provided at the top of the side plate 8 and is hinged to it. An installation position for placing the actuator 100 is formed between the flap 9 and the platform 2. A lock 10 capable of locking with the flap 9 is provided on the left vertical plate 6. Through the cooperation of the side plate 8, the flap 9, the platform 2 and the lock 10, the actuator 100 is fixed in the installation position so that the calibration pendulum block 4 remains engaged with the output gear 101 of the actuator 100.

[0037] In order to play a positioning role, in this embodiment, a plurality of vertical positioning rods 21 that can be inserted into the actuator 100 are fixed on the platform 2.

[0038] As a preferred structure, the calibration pendulum block 4 is vertically aligned with the limit pendulum block 5.

[0039] On this basis, this embodiment further relates to a method for calibrating the angle of a turbocharged electronic control actuator. This method is implemented based on a device. As shown in Figures 1 to 5 , the device includes a base 1. Above the base 1, there is a platform 2 for installing an actuator 100. On the base 1, there is a rotating shaft 3. The upper end of the rotating shaft 3 passes through the platform 2, and the rotating shaft 3 is rotationally connected to both the base 1 and the platform 2. Above the platform 2, there is a calibration pendulum block 4. One end of the calibration pendulum block 4 is fixedly connected to the rotating shaft 3, and the other end of the calibration pendulum block 4 meshes with the output gear 101 of the actuator 100. On the platform 2, there is an angle indicating mechanism 20 for indicating the swinging angle of the calibration pendulum block 4. Between the base 1 and the platform 2, there is a limit pendulum block 5. On the base 1, there is a limit adjusting mechanism. One end of the limit pendulum block 5 is fixedly connected to the rotating shaft 3, and the other end of the limit pendulum block 5 is arranged adjacent to the limit adjusting mechanism. The swinging angle of the limit pendulum block 5 is controlled by the limit adjusting mechanism;

[0040] The method includes the following steps:

[0041] Step S1: Install the actuator 100 on the platform 2. At the same time, connect the connecting wire 102 of the actuator 100 to the calibration host. Start the calibration software installed in the calibration host, and set the output angle of the actuator 100 through the calibration software;

[0042] Step S2: Adjust the swinging stroke of the limit pendulum block 5 by adjusting the limit adjusting mechanism, so that the swinging angle of the limit pendulum block 5 is consistent with the set output angle of the actuator 100;

[0043] Step S3: The calibration host controls the actuator 100 to operate to the set output angle;

[0044] Step S4: Read the swinging angle value of the calibration pendulum block 4 according to the angle indicating mechanism 20;

[0045] Step S5: Take the read swinging angle value as the calibration parameter of the actuator 100 and input it into the calibration software.

[0046] In this embodiment, the limit adjusting mechanism includes a left vertical plate 6 and a right vertical plate 7. A left adjusting rod 60 is provided on the left vertical plate 6, and a right adjusting rod 70 is provided on the right vertical plate 7. The left adjusting rod 60 and the right adjusting rod 70 are respectively arranged on both sides of the limit swing block 5. By adjusting the distance between the left adjusting rod 60 and the right adjusting rod 70, the swing angle of the limit swing block 5 is controlled. The left adjusting rod 60 is a screw rod screwed onto the left vertical plate 6, and the right adjusting rod 70 is a screw rod screwed onto the right vertical plate 7;

[0047] In step S2, the swing stroke of the limit swing block 5 is adjusted by screwing the left adjusting rod 60 and the right adjusting rod 70.

[0048] As a preferred method, in step S3, when the operating stroke of the actuator 100 exceeds or is less than the swing stroke of the limit swing block 5, the swing stroke of the limit swing block 5 is finely adjusted by screwing the left adjusting rod 60 and the right adjusting rod 70.

[0049] Furthermore, a vertically arranged side plate 8 is fixed at the edge of the base 1. The side plate 8 is adjacent to the right vertical plate 7. A flap 9 is provided at the top of the side plate 8 and they are hinged. An installation position for placing the actuator 100 is formed between the flap 9 and the platform 2. A lock 10 capable of locking with the flap 9 is provided on the left vertical plate 6;

[0050] In step S1, by the cooperative action of the side plate 8, the flap 9, the platform 2 and the lock 10, the actuator 100 is fixed in the installation position so that the calibration swing block 4 remains engaged with the output gear 101 of the actuator 100.

[0051] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements or improvements made within the technical scope of the present invention shall be included within the scope protected by the present invention.

Claims

1. A turbocharged electronic control actuator angle calibration device, characterized in that, It includes a base (1). Above the base (1), there is a platform (2) for installing an actuator (100). On the base (1), there is a rotating shaft (3). The upper end of the rotating shaft (3) passes through the platform (2), and the rotating shaft (3) is rotatably connected to both the base (1) and the platform (2). Above the platform (2), there is a calibration pendulum block (4). One end of the calibration pendulum block (4) is fixedly connected to the rotating shaft (3), and the other end of the calibration pendulum block (4) meshes with the output gear (101) of the actuator (100). On the platform (2), there is an angle indicating mechanism (20) for indicating the swinging angle of the calibration pendulum block (4). Between the base (1) and the platform (2), there is a limit pendulum block (5). On the base (1), there is a limit adjusting mechanism. One end of the limit pendulum block (5) is fixedly connected to the rotating shaft (3), and the other end of the limit pendulum block (5) is arranged adjacent to the limit adjusting mechanism. The swinging angle of the limit pendulum block (5) is controlled by the limit adjusting mechanism; During calibration, first adjust the limit adjusting mechanism to make the swinging angle of the limit pendulum block (5) consistent with the set output angle of the actuator (100). Then, control the actuator (100) to operate to the set output angle, read the swinging angle value of the calibration pendulum block (4) according to the angle indicating mechanism (20), and take this swinging angle value as the calibration parameter of the actuator (100); The calibration pendulum block (4) is a sector-shaped pendulum block; The angle indicating mechanism (20) is an angle scale line provided on the platform (2).

2. The turbocharged electronic control actuator angle calibration device according to claim 1, wherein The limit adjusting mechanism includes a left vertical plate (6) and a right vertical plate (7). On the left vertical plate (6), there is a left adjusting rod (60). On the right vertical plate (7), there is a right adjusting rod (70). The left adjusting rod (60) and the right adjusting rod (70) are arranged on both sides of the limit pendulum block (5). The swinging angle of the limit pendulum block (5) is controlled by adjusting the distance between the left adjusting rod (60) and the right adjusting rod (70).

3. The turbocharged electronically controlled actuator angle calibration device according to claim 2, characterized in that At the edge of the base (1), a vertically arranged side plate (8) is fixed. The side plate (8) is arranged adjacent to the right vertical plate (7). At the top of the side plate (8), there is a flap (9) which is hinged to the side plate (8). An installation position for placing the actuator (100) is formed between the flap (9) and the platform (2). On the left vertical plate (6), there is a lock (10) that can be locked with the flap (9). With the cooperation of the side plate (8), the flap (9), the platform (2) and the lock (10), the actuator (100) is fixed in the installation position to keep the calibration pendulum block (4) meshed with the output gear (101) of the actuator (100).

4. The turbocharged electronic control actuator angle calibration device according to claim 1, wherein The calibration pendulum block (4) and the limit pendulum block (5) are aligned vertically.

5. A method for calibrating the angle of a turbocharged electronic control actuator, characterized in that, This method is implemented based on a device, which includes a base (1). Above the base (1), there is a platform (2) for installing an actuator (100). A rotating shaft (3) is provided on the base (1). The upper end of the rotating shaft (3) passes through the platform (2), and the rotating shaft (3) is rotatably connected to both the base (1) and the platform (2). Above the platform (2), there is a calibration pendulum block (4). One end of the calibration pendulum block (4) is fixedly connected to the rotating shaft (3), and the other end of the calibration pendulum block (4) meshes with the output gear (101) of the actuator (100). An angle indicating mechanism (20) for indicating the swing angle of the calibration pendulum block (4) is provided on the platform (2). A limit pendulum block (5) is provided between the base (1) and the platform (2). A limit adjusting mechanism is provided on the base (1). One end of the limit pendulum block (5) is fixedly connected to the rotating shaft (3), and the other end of the limit pendulum block (5) is arranged adjacent to the limit adjusting mechanism. The swing angle of the limit pendulum block (5) is controlled by the limit adjusting mechanism; The method includes the following steps: Step S1: Install the actuator (100) on the platform (2). At the same time, connect the connecting wire (102) of the actuator (100) to the calibration host. Start the calibration software installed in the calibration host, and set the output angle of the actuator (100) through the calibration software; Step S2: Adjust the swing stroke of the limit pendulum block (5) by adjusting the limit adjusting mechanism, so that the swing angle of the limit pendulum block (5) is consistent with the set output angle of the actuator (100); Step S3: The calibration host controls the actuator (100) to operate to the set output angle; Step S4: Read the swing angle value of the calibration pendulum block (4) according to the angle indicating mechanism (20); Step S5: Take the read swing angle value as the calibration parameter of the actuator (100) and input it into the calibration software.

6. The turbocharged electronic control actuator angle calibration method according to claim 5, characterized in that The limit adjusting mechanism includes a left vertical plate (6) and a right vertical plate (7). A left adjusting rod (60) is provided on the left vertical plate (6), and a right adjusting rod (70) is provided on the right vertical plate (7). The left adjusting rod (60) and the right adjusting rod (70) are respectively arranged on both sides of the limit pendulum block (5). The swing angle of the limit pendulum block (5) is controlled by adjusting the distance between the left adjusting rod (60) and the right adjusting rod (70). The left adjusting rod (60) is a screw rod screwed on the left vertical plate (6), and the right adjusting rod (70) is a screw rod screwed on the right vertical plate (7); In step S2, the swing stroke of the limit pendulum block (5) is adjusted by screwing the left adjusting rod (60) and the right adjusting rod (70).

7. The turbocharged electronic control actuator angle calibration method according to claim 6, characterized in that In step S3, when the operating stroke of the actuator (100) exceeds or is less than the swing stroke of the limit pendulum block (5), the swing stroke of the limit pendulum block (5) is finely adjusted by screwing the left adjusting rod (60) and the right adjusting rod (70).

8. The method for calibrating the angle of the turbocharged electronic control actuator according to claim 6, wherein A vertical side plate (8) is fixed at the edge of the base (1). The side plate (8) is arranged adjacent to the right vertical plate (7). A flap (9) is provided at the top of the side plate (8) and the two are hinged. An installation position for placing the actuator (100) is formed between the flap (9) and the platform (2). A lock catch (10) capable of locking with the flap (9) is provided on the left vertical plate (6). In the step S1, by the cooperative action of the side plate (8), the flap (9), the platform (2) and the lock catch (10), the actuator (100) is fixed at the installation position so that the calibration pendulum block (4) remains engaged with the output gear (101) of the actuator (100).

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