Bent arm position degree detection tool and detection method

Abstract

The invention discloses a bent arm position degree detection tool and a detection method, belongs to the field of size detection, and aims to improve the detection efficiency and precision. A base is included; the first supporting table is matched with a lower vehicle body support, the second supporting table is matched with an upper vehicle body support, the third supporting table is matched with a lower vehicle door support, and the fourth supporting table is matched with an upper vehicle door support. The pedestal is provided with a first detection seat used for detecting the first connecting rod, a second detection seat used for detecting the lower support of the vehicle door, and a third detection seat used for detecting the upper support of the vehicle door. The detection reference point of the bent arm assembly is determined, and during detection, the detection reference point is transferred to the main reference hole and the secondary reference hole of the tool from the mounting holes of the vehicle body lower support and the vehicle body upper support, so that all bent arm assemblies detected by the detection tool have the same detection reference point, the detection consistency is ensured, and the detection efficiency is improved. Therefore, the detection accuracy is ensured. All position degree detection of the bent arm assembly can be completed through one-time positioning, operation is convenient, and detection efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of dimension detection, and specifically relates to a bending arm position detection tool and a detection method. Background Art

[0002] The bus middle door arm assembly is one of the key components in the bus door system. It is mainly used to connect the door and the body, support the opening and closing movement of the door, and ensure the stability and safety of the door during operation. Figure 1 A door arm assembly for a passenger car is disclosed, comprising a lower arm 101, an upper arm 102, a connecting rod 103 and a connecting rod 2 104; the end of the lower arm 101 close to the vehicle body and the end of the upper arm 102 close to the vehicle body are connected via a connecting rod 103; the bottom end of the connecting rod 103 is connected to a vehicle body lower support 105, and the top end is connected to a vehicle body upper support 106; the end of the lower arm 101 close to the vehicle door is fixed with a vehicle door lower support 107; the end of the upper arm 102 close to the vehicle door is fixed with a vehicle door upper support 108. The design and manufacture of the arm assembly need to ensure the accuracy of its placement position and movement trajectory, so as to ensure that the door opens and closes smoothly and is well sealed. Therefore, the position of the arm assembly needs to be tested after it is manufactured, and it can be installed and used only after it is qualified.

[0003] At present, the method for detecting the position of the curved arm of the middle door of a bus is as follows:

[0004] First, determine the inspection reference point or reference surface of the bending arm. In this process, a fixed hole or processing surface on the bending arm is usually selected as the reference, and the reference positioning is performed using tools such as a marking platform, a height gauge or a dial indicator; then, a pin or plug gauge is used to check whether the hole positions on the bending arm meet the design requirements one by one; a go gauge is used to check whether the thickness or width of the bending arm meets the requirements.

[0005] This detection method detects Figure 1 The following problems exist when determining the position of the door arm assembly of a public bus:

[0006] First, Figure 1 The overall components of the disclosed passenger car middle door arm assembly are relatively large, and it is inconvenient to use conventional marking platforms, height gauges and other tools for benchmark positioning. There are many working steps and the influence of human errors is large, making it difficult to accurately perform benchmark positioning, which affects the detection accuracy.

[0007] Secondly, since it is necessary to measure each hole position and each dimension one by one, the operation is cumbersome and inefficient. Summary of the invention

[0008] The purpose of the present invention is to provide a bending arm position detection tool to improve detection efficiency and accuracy.

[0009] The technical solution adopted by the present invention is: a bending arm position detection tooling includes a base; on the base, a support platform 1 adapted to the lower support of the vehicle body, a support platform 2 adapted to the support on the vehicle body, a support platform 3 adapted to the lower support of the vehicle door, and a support platform 4 adapted to the upper support of the vehicle door are arranged according to the theoretical size of the bending arm assembly;

[0010] The first support platform is provided with a main reference hole adapted to the mounting hole on the lower support of the vehicle body, and is provided with a main positioning pin adapted to the main reference hole;

[0011] The second support platform is provided with a secondary reference hole adapted to the mounting hole on the support on the vehicle body, and is provided with a secondary positioning pin adapted to the secondary reference hole;

[0012] The support platform 3 is provided with a detection hole 1 adapted to the mounting hole on the lower support of the vehicle door, and is provided with a position pin 1 adapted to the detection hole 1;

[0013] The support platform 4 is provided with a detection hole 2 adapted to the mounting hole on the upper support of the vehicle door, and is provided with a position pin 2 adapted to the detection hole 2;

[0014] The base is provided with a detection seat 1 for detecting the connecting rod 1, a detection seat 2 for detecting the lower support of the vehicle door, and a detection seat 3 for detecting the upper support of the vehicle door;

[0015] The tops of the detection seat 1, the detection seat 2 and the detection seat 3 are all provided with a vertical detection surface and a horizontal detection surface, and the vertical detection surface and the horizontal detection surface form an L-shaped detection area.

[0016] Furthermore, two detection seats are provided, namely a left detection seat 1 and a right detection seat 1 arranged along the theoretical extension direction of the connecting rod 1.

[0017] Furthermore, the base is provided with a first quick clamp, a second quick clamp and a third quick clamp;

[0018] The quick clamp 1 is located beside the support platform 1. After the lower support of the vehicle body is positioned on the support platform 1, the pressure head of the quick clamp 1 and the lower support of the vehicle body are relatively clamped up and down to clamp the lower support of the vehicle body;

[0019] The second quick clamp is located beside the second support platform. After the support on the vehicle body is positioned on the second support platform, the pressure head of the second quick clamp and the second support platform clamp the support on the vehicle body in a vertical direction.

[0020] The quick clamp three is located beside the support platform four. After the upper support of the vehicle door is located on the support platform four, the pressure head of the quick clamp three presses downward against the side of the upper support of the vehicle door.

[0021] Furthermore, the quick clamp 1, quick clamp 2 and quick clamp 3 all include a support leg, a swivel arm and a pressure shaft. The swivel arm cantilever is installed on the top of the support leg and is rotatably connected to the support leg. The pressure shaft is installed perpendicular to the swivel arm at the cantilever end of the swivel arm, and the bottom end of the pressure shaft is a pressure head.

[0022] Furthermore, support plates are fixed on the side of the base adjacent to support platform 1 and the side adjacent to support platform 2, and the bottom ends of the legs of quick clamp 1 and quick clamp 2 are supported on the corresponding support plates; the bottom ends of the legs of quick clamp 3 are supported on the top surface of the base.

[0023] Furthermore, the base includes a square frame surrounded by square steel pipes and a platform plate laid on the top surface of the square frame.

[0024] The method for detecting the position of a bending arm using a bending arm position detection tool comprises the following steps:

[0025] Step 1: Gently place the bending arm assembly to be inspected on the bending arm position detection tooling, adjust the corresponding hole positions, so that the lower support of the vehicle body is completely in contact with the support platform 1; the upper support of the vehicle body is completely in contact with the support platform 2; and the lower support of the door is completely in contact with the support platform 3;

[0026] Step 2: insert the main positioning pin into the main reference hole, the secondary reference hole into the secondary reference hole, and the position pin 2 into the detection hole 2;

[0027] Step 3: Install quick clamp 1, quick clamp 2 and quick clamp 3;

[0028] Step 4: Check the position of the lower door support, the upper door support and the connecting rod 1.

[0029] Furthermore, in step 4, detecting the position of the lower support of the door includes the following steps:

[0030] Insert position pin 1 into the mounting hole and detection hole 1 on the lower door support; use a go / no-go gauge to detect gap 1 between the vertical detection surface of detection seat 2 and the lower door support; use a go / no-go gauge to insert gap 2 between the horizontal detection surface of detection seat 2 and the lower door support.

[0031] Detecting the position of the upper support of the door includes the following steps:

[0032] A go / no-go gauge is used to detect gap three between the top surface of support platform four and the upper support of the vehicle door, and a go / no-go gauge is used to detect gap four between the side surface of support platform four and the upper support of the vehicle door; a go / no-go gauge is used to detect gap five between the vertical detection surface of detection seat three and the upper support of the vehicle door, and a go / no-go gauge is used to detect gap six between the horizontal detection surface of detection seat three and the upper support of the vehicle door.

[0033] Detecting the position of the connecting rod 1 includes the following steps:

[0034] A go / no-go gauge is used to detect a gap 7 between the vertical detection surface of the detection seat 1 and the connecting rod 1, and a gap 8 between the horizontal detection surface of the detection seat 1 and the connecting rod 1.

[0035] The beneficial effects of the present invention are as follows: the bending arm position detection tooling disclosed in the present invention, which is specifically used for bending arm position detection, positions the lower support of the vehicle body through the main locating pin and the main reference hole, and positions the support on the vehicle body through the secondary locating pin and the secondary reference hole, thereby determining the detection reference point of the bending arm assembly. During detection, the detection reference point is transferred from the mounting holes of the lower support of the vehicle body and the support on the vehicle body to the main reference hole and the secondary reference hole of the tooling, so that all bending arm assemblies detected by the detection tooling have the same detection reference point, thereby ensuring detection consistency and thus ensuring detection accuracy.

[0036] During inspection, the bending arm assembly is first fixed to the inspection fixture, and then the position inspection is carried out, so that all position inspections of the bending arm assembly can be completed in one positioning, which is easy to operate and improves the inspection efficiency.

[0037] Through the combined detection of pins and plug gauges, there is no need to manually measure dimensions one by one, which reduces human errors and further improves detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of a bent arm assembly;

[0039] Figure 2 A schematic diagram of the structure of the bending arm position detection tooling disclosed in the present invention;

[0040] Figure 3 It is a structural schematic diagram of using the bending arm position detection tooling to detect the bending arm assembly position;

[0041] Figure 4 It is a schematic diagram of the position detection of the connecting rod;

[0042] Figure 5 This is a schematic diagram of door lower support position detection;

[0043] Figure 6 It is a schematic diagram of the position detection of the round shaft head of the upper support of the door;

[0044] Figure 7 Schematic diagram of the position detection of the connection seat of the upper support of the vehicle door.

[0045] In the figure, the bending arm assembly 1, the lower bending arm 101, the upper bending arm 102, the connecting rod 103, the connecting rod 2 104, the lower support 105 of the vehicle body, the support 106 of the vehicle body, the lower support 107 of the door, the upper support 108 of the door, the base 2, the square frame 201, the platform plate 202, the quick clamp 13, the quick clamp 24, the quick clamp 35, the support leg 501, the rotating arm 502, the pressure shaft 503, the support plate 504, the support platform 16, the support platform 27, the support Support platform three 8, support platform four 9, detection seat one 10, detection seat two 11, detection seat three 12, vertical detection surface 121, horizontal detection surface 122, main reference hole 13, main positioning pin 14, secondary reference hole 15, secondary positioning pin 16, detection hole one 17, position pin one 18, detection hole two 19, position pin two 20, gap one 21, gap two 22, gap three 23, gap four 24, gap five 25, gap six 26, gap seven 27, gap eight 28. DETAILED DESCRIPTION

[0046] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0047] like Figure 1 The bent arm assembly 1 shown includes a lower bent arm 101, an upper bent arm 102, a connecting rod 103 and a connecting rod 2 104. The end of the lower bent arm 101 close to the vehicle body and the end of the upper bent arm 102 close to the vehicle body are connected via the connecting rod 103; the bottom end of the connecting rod 103 is connected to a vehicle body lower support 105, and the top end is connected to a vehicle body upper support 106; the end of the lower bent arm 101 close to the vehicle door is fixed with a vehicle door lower support 107; the end of the upper bent arm 102 close to the vehicle door is fixed with a vehicle door upper support 108.

[0048] When installed on the middle door of the bus, the lower support 105 of the vehicle body is fixed to the bottom of the vehicle body at the middle door by bolts and other connectors, and the upper support 106 of the vehicle body is fixed to the upper part of the vehicle body at the middle door by bolts and other connectors. The bottom end of the connecting rod 103 is rotatably connected to the lower support 105 of the vehicle body, and the top end is rotatably connected to the upper support 106 of the vehicle body. When the lower support 105 of the vehicle body and the upper support 106 of the vehicle body are fixed to the vehicle body, the connecting rod 103 can rotate around its own axis. Therefore, it is necessary to detect the position of the connecting rod 103 so that after the bending arm assembly 1 is installed on the middle door of the bus, there is enough clearance between the connecting rod 103 and the vehicle body to meet its own rotation requirements.

[0049] The lower support 107 of the door is a shaft structure, and the upper part of the rotating shaft is a connecting seat similar to Ω. The rotating shaft and the connecting seat are rotatably matched. The end of the upper curved arm 102 is welded to the side wall of the rotating shaft, and the connecting seat is fixed to the top of the door through a bolt or other connecting parts on both sides. When the connecting seat of the lower support 107 of the door is fixed to the door, its rotating shaft can rotate around its own axis. Therefore, it is necessary to detect the position of the rotating shaft of the lower support 107 of the door, so that after the lower support 107 of the door is installed on the middle door of the bus, there is enough clearance between the rotating shaft of the lower support 107 of the door and the door to meet its own rotation requirements. At the same time, it is also necessary to detect the mounting holes on the connecting seat of the lower support 107 of the door, so that it can be aligned with the corresponding mounting holes on the door to meet the installation requirements.

[0050] The upper support 108 of the car door is composed of two parts, one part is an L-shaped mounting seat, and the other part is a round shaft head, the top end of which is rotatably connected to the top plate of the mounting seat. During installation, the side plate of the mounting seat is fixed to the mounting platform in the middle of the car door through connecting bolts and other connecting parts. In order to smoothly install the mounting seat, it is necessary to detect the mounting holes on the mounting seat of the upper support 108 of the car door so that it can be aligned with the corresponding mounting holes on the car door; it is also necessary to detect the gap of the mounting seat of the upper support 108 of the car door so that it can be installed in alignment with the mounting platform on the car door; it is also necessary to detect the position of the round shaft head of the upper support 108 of the car door so that after the upper support 108 of the car door is installed on the car door, the car door is rotated, and the rotation center of the car door is on the axis of the round shaft head of the upper support 108 of the car door and the lower support 107 of the car door, so that the posture of the car door is stable.

[0051] The present invention provides a bending arm position detection tool, such as Figure 2 As shown, it includes a base 2; on the base 2, according to the theoretical size of the bending arm assembly 1, there are provided a support platform 1 6 adapted to the lower support 105 of the vehicle body, a support platform 2 7 adapted to the upper support 106 of the vehicle body, a support platform 3 8 adapted to the lower support 107 of the door, and a support platform 4 9 adapted to the upper support 108 of the door.

[0052] The support platform 16 matched with the lower support 105 of the vehicle body refers to the support platform 16 used to simulate the installation position of the lower support 105 of the vehicle body at the middle door of the bus; the support platform 27 matched with the upper support 106 of the vehicle body refers to the support platform 27 used to simulate the installation position of the lower support 105 of the vehicle body at the middle door of the bus, and the same applies to the support platform 38 and the support platform 49. Therefore, the support platform 16, the support platform 27, the support platform 38 and the support platform 49 are designed according to the theoretical matching relationship between the middle door of the bus and the curved arm assembly 1.

[0053] The support platform 6 is provided with a main reference hole 13 adapted to the mounting hole on the lower support 105 of the vehicle body, and is provided with a main positioning pin 14 adapted to the main reference hole 13. The support platform 6 is used to support the lower support 105 of the vehicle body. When the lower support 105 of the vehicle body is placed on the support platform 6, the main positioning pin 14 is inserted into the mounting hole of the lower support 105 of the vehicle body and the main reference hole 13 on the support platform 6 for positioning.

[0054] Similarly, the support platform 2 7 is provided with a secondary reference hole 15 adapted to the mounting hole on the support 106 on the vehicle body, and is provided with a secondary positioning pin 16 adapted to the secondary reference hole 15 .

[0055] The support platform 3 8 is provided with a detection hole 17 adapted to the mounting hole on the lower support 107 of the vehicle door, and is provided with a position pin 18 adapted to the detection hole 17;

[0056] The support platform 9 is provided with a second detection hole 19 adapted to the mounting hole on the door upper support 108, and is provided with a second position pin 20 adapted to the second detection hole 19;

[0057] A detection seat 10 for detecting a connecting rod 103, a detection seat 2 11 for detecting a lower door support 107, and a detection seat 3 12 for detecting an upper door support 108 are arranged on the base 2;

[0058] The tops of the detection seat 1 10 , the detection seat 2 11 and the detection seat 3 12 are all provided with a vertical detection surface 121 and a horizontal detection surface 122 , and the vertical detection surface 121 and the horizontal detection surface 122 form an L-shaped detection area.

[0059] The lower support 105 of the vehicle body is positioned by the main positioning pin 14 and the main reference hole 13, and the upper support 106 of the vehicle body is positioned by the secondary positioning pin 16 and the secondary reference hole 15, and the detection reference point of the bending arm assembly 1 is determined, that is, the main reference hole 13 and the secondary reference hole 15 on the tooling are used as the detection reference points. The traditional method of using the installation hole of the bending arm assembly 1 itself as the detection reference is converted into the main reference hole 13 and the secondary reference hole 15 of the tooling as the reference point of this solution, so that all the bending arm assemblies detected by the detection tooling have the same detection reference point, ensuring the consistency of detection, thereby ensuring the accuracy of detection.

[0060] Since the connecting rod 103 has a certain length, the more detection points there are, the higher the detection accuracy; however, the more detection points there are, the longer the detection time will be. In order to take into account both detection accuracy and saving detection time, preferably, the detection seat 10 is provided with two, namely, a left detection seat 10B and a right detection seat 10B arranged along the theoretical extension direction of the connecting rod 103. The theoretical extension direction of the connecting rod 103 refers to the extension direction of the connecting rod 103 of the bending arm assembly 1 under the theoretical design state. The left detection seat 10B performs detection on the left side of the connecting rod 103, and the right detection seat 10B performs detection on the right side of the connecting rod 103. By setting two detection points, the detection accuracy is higher than that of one detection point, and the time consumed will not be too long.

[0061] In order to stably install the bending arm assembly 1 to be tested in place and avoid position changes during the detection process, in this embodiment, a quick clamp 3, a quick clamp 2 4 and a quick clamp 3 5 are arranged on the base 2; the quick clamp 3 is located beside the support platform 6, and after the lower support 105 of the vehicle body is positioned on the support platform 6, the pressure head of the quick clamp 3 and the lower support 105 of the vehicle body are clamped relative to each other up and down on the lower support 105 of the vehicle body; the quick clamp 2 4 is located beside the support platform 2 7, and after the support 106 on the vehicle body is positioned on the support platform 2 7, the pressure head of the quick clamp 2 4 and the support platform 2 7 are clamped relative to each other up and down on the support 106 on the vehicle body;

[0062] Since it is necessary to detect the gap between the L-shaped mounting seat of the upper support 108 of the vehicle door and the support platform 49, the L-shaped mounting seat of the upper support 108 of the vehicle door cannot be directly located on the support platform 49. In this embodiment, the quick clamp 35 is located beside the support platform 49. After the upper support 108 of the vehicle door is located on the support platform 49, the pressure head of the quick clamp 35 presses downward against the side of the upper support 108 of the vehicle door. After the bending arm assembly 1 is placed horizontally on the detection fixture, the quick clamp 35 only limits the mounting seat of the upper support 108 of the vehicle door at the top to prevent the plug gauge from being inserted into the gap between the L-shaped mounting seat of the upper support 108 of the vehicle door and the support platform 49, causing the bending arm assembly 1 to change position and affect the detection accuracy.

[0063] A hydraulic cylinder can be vertically arranged as a clamp, and the corresponding part of the bending arm assembly 1 can be pressed down by the piston rod end of the hydraulic cylinder. In this embodiment, the quick clamp 1 3, quick clamp 2 4 and quick clamp 3 5 all include a leg 501, a rotating arm 502 and a pressure shaft 503. The rotating arm 502 is cantilevered and installed on the top of the leg 501 and is rotatably connected to the leg 501. The pressure shaft 503 is installed at the cantilever end of the rotating arm 502 perpendicular to the rotating arm 502, and the bottom end of the pressure shaft 503 is a pressure head. The clamp of this structure can make the pressure head of the pressure shaft 503 press down the corresponding part of the bending arm assembly 1 by the positive rotation of the rotating arm 502, and the rotating arm 502 rotates in the reverse direction to withdraw the downward pressure of the pressure head of the pressure shaft 503 on the bending arm assembly 1.

[0064] In order to achieve a reasonable layout, support plates 504 are fixed on the side of the base 2 adjacent to the support platform 1 6 and the side adjacent to the support platform 2 7, and the bottom ends of the legs 501 of the quick clamp 1 3 and the quick clamp 2 4 are supported on the corresponding support plates 504; the bottom ends of the legs 501 of the quick clamp 3 5 are supported on the top surface of the base 2.

[0065] In order to ensure the supporting strength of the base 2 while reducing the overall neutrality of the device, preferably, the base 2 includes a square frame 201 surrounded by square steel pipes and a platform plate 202 laid on the top surface of the square frame 201.

[0066] The method for detecting the position of a bending arm using a rising bending arm position detection tool comprises the following steps:

[0067] Step 1: Figure 3 As shown, the bending arm assembly 1 to be inspected is gently placed on the bending arm position detection tooling, and the corresponding hole positions are adjusted so that the lower support 105 of the vehicle body is completely in contact with the support platform 1 6; the support 106 on the vehicle body is completely in contact with the support platform 2 7; and the lower support 107 of the door is completely in contact with the support platform 3 8;

[0068] Step 2: insert the main positioning pin 14 into the main reference hole 13, the secondary reference hole 15 into the secondary reference hole 15, and the second positioning pin 20 into the second detection hole 19;

[0069] Step 3, install quick clamp 1 3, quick clamp 2 4 and quick clamp 3 5;

[0070] Step 4: Detect the position of the lower door support 107, the upper door support 108 and the connecting rod 103.

[0071] In step 4, the position of the lower door support 107 is detected, including the following steps:

[0072] Insert the position pin 18 into the mounting hole and the detection hole 17 on the lower door support 107. If the mounting hole on the lower door support 107 meets the requirements of the position pin 18, it means that the mounting hole on the lower door support 107 is qualified.

[0073] like Figure 5 As shown, a go / no-go gauge is used to detect the gap 121 between the vertical detection surface 121 of the detection seat 2 11 and the lower support 107 of the vehicle door; a go / no-go gauge is used to insert the gap 22 between the horizontal detection surface 122 of the detection seat 2 11 and the lower support 107 of the vehicle door. The detection seat 2 11 is used to detect the position of the connecting seat of the lower support 107 of the vehicle door. If both the gap 1 21 and the gap 2 22 meet the requirements of the go / no-go gauge, it means that the position of the connecting seat of the lower support 107 of the vehicle door is qualified.

[0074] Detecting the position of the door upper support 108 includes the following steps:

[0075] like Figure 7 As shown, a go / no-go gauge is used to detect the gap 23 between the top surface of the support platform 29 and the upper support 108 of the vehicle door, and a go / no-go gauge is used to detect the gap 24 between the side surface of the support platform 29 and the upper support 108 of the vehicle door. The go / no-go gauge detection support platform 29 is mainly used to detect the position of the L-shaped mounting seat of the upper support 108 of the vehicle door.

[0076] If the gap three 23 and the gap four 24 meet the requirements of the through-stop gauge, it means that the position of the L-shaped mounting seat of the door upper support 108 meets the requirements.

[0077] like Figure 6 As shown, a go / no-go gauge is used to detect a gap 525 between the vertical detection surface 121 of the detection seat 3 12 and the upper support 108 of the vehicle door, and a go / no-go gauge is used to detect a gap 626 between the horizontal detection surface 122 of the detection seat 3 12 and the upper support 108 of the vehicle door. The detection seat 3 12 is mainly used to detect the position of the round shaft head of the upper support 108 of the vehicle door. If the gap 525 and the gap 626 meet the requirements of the go / no-go gauge, it means that the position of the round shaft head of the upper support 108 of the vehicle door meets the requirements.

[0078] Detecting the position of the connecting rod 103 includes the following steps:

[0079] like Figure 4 As shown, a go / no-go gauge is used to detect the gap 727 between the vertical detection surface 121 of the detection seat 10 and the connecting rod 103, and the gap 828 between the horizontal detection surface 122 of the detection seat 10 and the connecting rod 103. If the gap 727 and the gap 828 both meet the requirements of the go / no-go gauge, it means that the position of the connecting rod 103 is qualified.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending arm position detection tool, used to detect the position of the bending arm assembly (1), characterized by: The invention comprises a base (2); on the base (2), a support platform 1 (6) adapted to a lower support (105) of the vehicle body, a support platform 2 (7) adapted to a support (106) on the vehicle body, a support platform 3 (8) adapted to a lower support (107) of the vehicle door, and a support platform 4 (9) adapted to an upper support (108) of the vehicle door are arranged according to a theoretical matching relationship between a curved arm assembly (1) and a middle door of a passenger vehicle; The support platform 1 (6) is provided with a main reference hole (13) adapted to the mounting hole on the lower support (105) of the vehicle body, and is provided with a main positioning pin (14) adapted to the main reference hole (13); The second support platform (7) is provided with a secondary reference hole (15) adapted to the mounting hole on the support (106) on the vehicle body, and is provided with a secondary positioning pin (16) adapted to the secondary reference hole (15); The support platform 3 (8) is provided with a detection hole 1 (17) adapted to the mounting hole on the lower support seat (107) of the vehicle door, and is provided with a position pin 1 (18) adapted to the detection hole 1 (17); The support platform 4 (9) is provided with a detection hole 2 (19) adapted to the mounting hole on the upper support (108) of the vehicle door, and is provided with a position pin 2 (20) adapted to the detection hole 2 (19); A detection seat 1 (10) for detecting a connecting rod 1 (103), a detection seat 2 (11) for detecting a lower door support (107), and a detection seat 3 (12) for detecting an upper door support (108) are arranged on the base (2); The tops of the detection seat 1 (10), the detection seat 2 (11) and the detection seat 3 (12) are all provided with a vertical detection surface (121) and a horizontal detection surface (122), and the vertical detection surface (121) and the horizontal detection surface (122) form an L-shaped detection area.

2. The bending arm position detection tool as claimed in claim 1, characterized in that: The detection seat 1 (10) is provided with two, namely a left detection seat 1 (10B) and a right detection seat 1 (10B) arranged along the theoretical extension direction of the connecting rod 1 (103).

3. The bending arm position detection tool as claimed in claim 2, characterized in that: A quick clamp 1 (3), a quick clamp 2 (4) and a quick clamp 3 (5) are arranged on the base (2); The quick clamp 1 (3) is located beside the support platform 1 (6). After the lower support (105) of the vehicle body is positioned on the support platform 1 (6), the pressure head of the quick clamp 1 (3) and the lower support (105) of the vehicle body are relatively clamped up and down to clamp the lower support (105) of the vehicle body; The second quick clamp (4) is located beside the second support platform (7). After the support (106) on the vehicle body is positioned on the second support platform (7), the pressure head of the second quick clamp (4) and the second support platform (7) clamp the support (106) on the vehicle body relatively up and down; The quick clamp three (5) is located beside the support platform four (9). After the vehicle door upper support (108) is located on the support platform four (9), the pressure head of the quick clamp three (5) presses downward against the side of the vehicle door upper support (108).

4. The bending arm position detection tool as claimed in claim 3, characterized in that: The quick clamp 1 (3), quick clamp 2 (4) and quick clamp 3 (5) all comprise a support leg (501), a rotating arm (502) and a pressure shaft (503); the rotating arm (502) is cantilevered and installed on the top of the support leg (501) and is rotatably connected to the support leg (501); the pressure shaft (503) is perpendicular to the rotating arm (502) and is installed on the cantilever end of the rotating arm (502); and the bottom end of the pressure shaft (503) is a pressure head.

5. The bending arm position detection tool as claimed in claim 4, characterized in that: Support plates (504) are fixedly arranged on the side of the base (2) adjacent to the support platform 1 (6) and the side of the base (2) adjacent to the support platform 2 (7); the bottom ends of the legs (501) of the quick clamp 1 (3) and the quick clamp 2 (4) are supported on the corresponding support plates (504); and the bottom ends of the legs (501) of the quick clamp 3 (5) are supported on the top surface of the base (2).

6. The bending arm position detection tool as claimed in any one of claims 1 to 5, characterized in that: The base (2) comprises a square frame (201) surrounded by square steel pipes and a platform plate (202) laid on the top surface of the square frame (201).

7. The method for detecting the bending arm position using the bending arm position detection tooling according to claim 3 is characterized in that: The following steps are involved: Step 1: gently place the bending arm assembly (1) to be inspected on the bending arm position detection tooling, and adjust the corresponding hole positions so that the lower support (105) of the vehicle body is completely in contact with the support platform 1 (6); the upper support (106) of the vehicle body is completely in contact with the support platform 2 (7); and the lower support (107) of the door is completely in contact with the support platform 3 (8); Step 2: insert the main positioning pin (14) into the main reference hole (13), insert the secondary reference hole (15) into the secondary reference hole (15), and insert the second positioning pin (20) into the second detection hole (19); Step 3: Install quick clamp 1 (3), quick clamp 2 (4) and quick clamp 3 (5); Step 4: Detect the position of the lower door support (107), the upper door support (108) and the connecting rod 1 (103).

8. The method for detecting the bending arm position as claimed in claim 7, characterized in that: In step 4, the position of the lower door support (107) is detected, which includes the following steps: Insert the position pin 1 (18) into the mounting hole and the detection hole 1 (17) on the lower support (107) of the vehicle door. A go / no-go gauge is used to detect a gap (21) between a vertical detection surface (121) of the second detection seat (11) and a lower support (107) of the vehicle door; a go / no-go gauge is used to insert a gap (22) between a horizontal detection surface (122) of the second detection seat (11) and a lower support (107) of the vehicle door; Detecting the position of the upper support (108) of the vehicle door comprises the following steps: A go / no-go gauge is used to detect a gap three (23) between the top surface of the support platform four (9) and the upper support seat (108) of the vehicle door, and a go / no-go gauge is used to detect a gap four (24) between the side surface of the support platform four (9) and the upper support seat (108) of the vehicle door; A go / no-go gauge is used to detect a gap five (25) between a vertical detection surface (121) of the detection seat three (12) and an upper support (108) of the vehicle door, and a go / no-go gauge is used to detect a gap six (26) between a horizontal detection surface (122) of the detection seat three (12) and an upper support (108) of the vehicle door; Detecting the position of the connecting rod 1 (103) comprises the following steps: A go / no-go gauge is used to detect a gap seven (27) between a vertical detection surface (121) of the detection seat one (10) and a connecting rod one (103), and a gap eight (28) between a horizontal detection surface (122) of the detection seat one (10) and a connecting rod one (103).

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