Novel plate spring backing plate and pressing plate testing fixture

Abstract

The invention discloses a novel plate spring backing plate and pressing plate testing fixture, which relates to the technical field of plate spring backing plate and pressing plate detection and comprises a plate body and a base. The first detection assembly is arranged on the base and used for detecting the inclination angle among the plate spring base plate, the pressing plate and the axle housing; the second detection assembly is arranged on the first detection assembly and is used for detecting the position degree and the size of a plate spring backing plate hole; and the third detection assembly is arranged on the base and is used for detecting the position degree and the aperture of four holes of a plate spring pressing plate. According to the novel plate spring backing plate and pressing plate testing fixture, through the same testing fixture, detection of the inclination angles of the plate spring backing plate and the pressing plate and whether the plate spring backing plate and the pressing plate are tightly attached to an axle housing body or not and whether interference exists or not can be achieved, and detection of the hole position degree and the hole size of the plate spring backing plate and the position degree and the hole diameter of four holes of the plate spring pressing plate can be achieved; the position relation of the plate spring base plate, the pressing plate and the axle housing body during welding can be simulated, and the detection precision and the detection efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of leaf spring pad and pressure plate detection, in particular to a novel leaf spring pad and pressure plate detection tool. Background Art

[0002] The automobile axle housing is an important component of the automobile chassis. It needs to bear the weight from the vehicle body, cargo and passengers. The leaf spring pad and pressure plate are welded to the axle housing, which is mainly used to install the automobile leaf springs. It provides a precise installation position for the leaf springs and ensures that the leaf springs will not shift or loosen during the vehicle's driving.

[0003] When the leaf spring pads and pressure plates are welded on the bridge housing, there will be gaps between the bridge housing and the pads and pressure plates during welding due to quality problems of the components, and even interference problems will occur. After welding, the relative position of the holes and the angles of the pads and pressure plates are required to be high, which is related to whether the entire bridge can be assembled later. Therefore, when welding the leaf spring pads and pressure plates, it is necessary to inspect the leaf spring pads and pressure plates. However, the existing inspection tools are difficult to simulate the position accuracy of the leaf spring pads and pressure plates welded on the bridge housing, which not only affects the accuracy of the inspection of the leaf spring pads and pressure plates, but also reduces the efficiency of the inspection of the leaf spring pads and pressure plates. For this reason, we propose a new type of leaf spring pad and pressure plate inspection fixture. Summary of the invention

[0004] The purpose of the present invention is to provide a novel leaf spring pad and pressure plate inspection fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of leaf spring pad and pressure plate inspection fixture, comprising a plate body and a base, and also comprising a first detection component arranged on the base for detecting the inclination angle between the leaf spring pad, the pressure plate and the bridge housing, a second detection component arranged on the first detection component for detecting the position and size of the leaf spring pad holes, and a third detection component arranged on the base for detecting the position and aperture of the four holes of the leaf spring pressure plate.

[0006] Preferably, the first detection component is arranged on a positioning block of the base, and the positioning block is arranged similarly to the bridge housing body. A positioning hole is provided on a side of the positioning block close to the base, and a square positioning key is slidably connected to the positioning hole. One end of the square positioning key is connected to the base, and the base is provided with a fixing component for fixing the positioning block, and the positioning block is provided with a marking component for marking the degree of fit between the leaf spring pad, the pressure plate and the positioning block.

[0007] Preferably, the second detection component includes a fixing hole opened on the side of the positioning block away from the base, the bottom wall of the fixing hole is provided with a plug hole, the plug hole is slidably connected to a plug rod, and the end of the plug rod away from the positioning block is fixedly connected to a positioning pin.

[0008] Preferably, the third detection component includes four mounting holes opened on the base, guide sleeves are inserted into the four mounting holes, a connecting plate is slidably connected to the side of the base close to the positioning block, four plug posts are bolted to the side of the connecting plate close to the base, the four plug posts are matched with the guide sleeves, and a U-shaped handle is fixedly connected to the side of the connecting plate away from the base.

[0009] Preferably, the marking assembly includes a plurality of groups of vertically arranged marking holes opened on the side of the positioning block away from the base, each of the marking holes is connected to a circular plate via a telescopic assembly, each of the circular plates is detachably connected to a marking pen on the side away from the base, and the positioning block is provided with a driving assembly for driving each of the marking pens in the same vertical arrangement.

[0010] Preferably, the driving assembly includes a driving rod rotatably connected to the positioning block, the driving rod is fixedly connected to a cam on the side wall inside each marking hole, each of the cams is located on the side of the circular plate away from the marking pen, and the driving rod is fixedly connected to a driving disk at one end located outside the positioning block.

[0011] Preferably, the telescopic assembly includes two symmetrically arranged telescopic tubes fixedly connected to the bottom wall of the marking hole, the two telescopic tubes are slidably connected with a telescopic rod, one end of the two telescopic rods is connected to a circular plate, the other end of the two telescopic rods is located in the telescopic tube and fixedly connected to a telescopic plate, the telescopic rod is located on the inner side wall of the telescopic tube and is provided with a spring, and the two ends of the spring are respectively connected to the telescopic plate and the inner wall of the telescopic tube.

[0012] Preferably, the fixing component includes two symmetrically arranged fixing tubes fixedly connected to the base on one side close to the positioning block, the side walls of the two fixing tubes are provided with two symmetrically arranged sliding holes, four of the sliding holes are slidably connected with fixing blocks, the four fixing blocks are provided with inclined surfaces on one side close to the positioning block, two limiting holes are provided on one side close to the base, annular limiting grooves are provided on the inner walls of the two limiting holes, the two annular limiting grooves are matched with the fixing blocks, and the two fixing tubes are provided with a pushing component for pushing the two fixing blocks.

[0013] Preferably, the pushing assembly includes a pushing plate slidably connected to the fixed tube, the pushing plate is connected to the bottom wall of the fixed tube through a telescopic assembly, the side of the pushing plate close to the two fixed blocks is fixedly connected with a strip plate, the opposite sides of the two fixed blocks are fixedly connected with a square plate, the two square plates are provided with oblique grooves, the two oblique grooves are slidably connected with pushing pins, the two pushing pins are connected to the strip plate, and the base is provided with a moving assembly for synchronously moving the two pushing plates.

[0014] Preferably, the moving component includes a moving hole opened on the side of the base away from the positioning block, the moving hole is slidably connected to a moving plate, and the side of the moving plate close to the positioning block is fixedly connected to two moving rods, and one end of the two moving rods is connected to the pushing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The novel leaf spring pad and pressure plate inspection fixture of the present invention can realize the inspection of the inclination angle of the leaf spring pad and pressure plate, whether they are tightly fitted with the bridge housing body, and whether there is interference, and can also realize the inspection of the position and size of the leaf spring pad hole and the position and aperture of the four holes of the leaf spring pressure plate. Compared with manual measurement, it can not only simulate the position relationship between the leaf spring pad, pressure plate and the bridge housing body during welding to improve the inspection accuracy, but also greatly reduce the tooling adjustment time and improve the inspection efficiency.

[0017] 2. The novel leaf spring pad and pressure plate inspection fixture of the present invention has modular and universal design of various components, and various components of the inspection fixture can be replaced at will. By replacing different bases, positioning blocks, and positioning pins, the tooling can be quickly switched and combined at will, so that it can be used to detect leaf spring pads and leaf spring pressure plates of different models, thereby improving the flexibility and applicability of the detection.

[0018] 3. The new leaf spring pad and pressure plate inspection fixture of the present invention has a positioning block with a high surface roughness, which can ensure the flatness and verticality of the inner cavity of the leaf spring pad and the leaf spring pressure plate, thereby ensuring the inspection quality of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structures of the first detection component, the second detection component and the third detection component of the present invention;

[0021] Figure 3 It is a schematic diagram of the guide sleeve structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the positioning pin structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the fixing assembly of the present invention;

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0026] Figure 8 This is a schematic diagram of the internal structure of the marking component of the present invention;

[0027] Fig. 9 for Figure 8 Enlarged view of center C.

[0028] In the figure: 101, plate; 102, base; 201, positioning block; 202, positioning hole; 203, square positioning key; 301, plug hole; 302, plug rod; 303, positioning pin; 304, fixing hole; 401, mounting hole; 402, guide sleeve; 403, connecting plate; 404, plug column; 405, U-shaped handle; 501, marking hole; 502, round plate; 503, marking pen; 601, driving rod; 602, cam; 603, Driving disk; 701, telescopic tube; 702, telescopic rod; 703, telescopic plate; 704, spring; 801, fixed tube; 802, sliding hole; 803, fixed block; 804, inclined surface; 805, limiting hole; 806, annular limiting groove; 1001, pushing plate; 1002, strip plate; 1003, square plate; 1004, inclined groove; 1005, pushing pin; 1101, moving hole; 1102, moving plate; 1103, moving rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-Figure 9 , a new type of leaf spring pad and pressure plate inspection fixture shown in the figure includes a plate body 101 and a base 102, and also includes a first detection component arranged on the base 102 for detecting the inclination angle between the leaf spring pad, the pressure plate and the bridge housing, a second detection component arranged on the first detection component for detecting the position and size of the leaf spring pad hole, and a third detection component arranged on the base 102 for detecting the position and aperture of the four holes of the leaf spring pressure plate;

[0032] It should be noted here that: through the setting of the first detection component, the second detection component and the third detection component, it is possible to detect the inclination angle of the leaf spring pad and the pressure plate, whether they are tightly fitted to the bridge housing body and whether there is interference, and it is also possible to detect the position and size of the leaf spring pad holes and the position and aperture of the four holes of the leaf spring pressure plate. Compared with manual measurement, it can not only simulate the positional relationship between the leaf spring pad, the pressure plate and the bridge housing body during welding to improve the detection accuracy, but also greatly reduce the tooling adjustment time and improve the detection efficiency.

[0033] See also Figure 2 , Figure 5 and Figure 8 The first detection component shown in the figure is arranged on the positioning block 201 of the base 102. The positioning block 201 is arranged similarly to the bridge housing body. A positioning hole 202 is provided on the side of the positioning block 201 close to the base 102. A square positioning key 203 is slidably connected to the positioning hole 202. One end of the square positioning key 203 is connected to the base 102. The base 102 is provided with a fixing component for fixing the positioning block 201. The positioning block 201 is provided with a marking component for marking the degree of adhesion between the leaf spring pad, the pressure plate and the positioning block 201.

[0034] It should be noted here that: through the provision of the first detection component, the inclination angle of the leaf spring pad and the pressure plate, as well as whether they are tightly fitted to the bridge housing body and whether there is interference can be detected.

[0035] See also Figure 2 , Figure 3 and Figure 4 The second detection component shown in the figure includes a fixing hole 304 opened on the side of the positioning block 201 away from the base 102, the bottom wall of the fixing hole 304 is provided with a plug hole 301, the plug hole 301 is slidably connected to the plug rod 302, and the end of the plug rod 302 away from the positioning block 201 is fixedly connected to the positioning pin 303;

[0036] It should be noted here that the second detection component is provided to detect the position and size of the leaf spring pad hole.

[0037] See also Figure 2 , Figure 3 and Figure 4 The third detection assembly shown in the figure includes four mounting holes 401 opened on the base 102, and the four mounting holes 401 are inserted with guide sleeves 402. A connecting plate 403 is slidably connected to the side of the base 102 close to the positioning block 201, and four plug posts 404 are connected to the side of the connecting plate 403 close to the base 102 by bolts. The four plug posts 404 are matched with the guide sleeves 402, and a U-shaped handle 405 is fixedly connected to the side of the connecting plate 403 away from the base 102;

[0038] It should be noted here that the third detection component is provided to detect the position and diameter of the four holes of the leaf spring pressure plate.

[0039] See also Figure 8 and Fig. 9 The marking assembly shown in the figure includes a plurality of groups of marking holes 501 arranged vertically and opened on the side of the positioning block 201 away from the base 102, each marking hole 501 is connected to a circular plate 502 through a telescopic assembly, and each circular plate 502 is detachably connected to a marking pen 503 on the side away from the base 102, and the positioning block 201 is provided with a driving assembly for driving each marking pen 503 located in the same vertical arrangement;

[0040] It should be noted here that: through the setting of the marking component, by checking the color mark of the marker pen 503 on the surface of the leaf spring pad and the pressure plate, it is possible to intuitively judge whether the inclination angle of the leaf spring pad and the pressure plate meets the requirements, thereby realizing the detection of whether the bridge housing body and the leaf spring pad and the pressure plate are tightly attached and whether there is interference.

[0041] See also Figure 8 and Fig. 9 The driving assembly shown in the figure includes a driving rod 601 rotatably connected to the positioning block 201, and the side wall of the driving rod 601 located inside each marking hole 501 is fixedly connected to a cam 602, each cam 602 is located on the side of the circular plate 502 away from the marking pen 503, and the end of the driving rod 601 located outside the positioning block 201 is fixedly connected to a driving disk 603;

[0042] It should be noted here that: the drive assembly is arranged to push the marking pen 503 to move closer to the leaf spring pad and the pressure plate.

[0043] See also Figure 8 and Fig. 9 The telescopic assembly shown in the figure includes two telescopic tubes 701 fixedly connected to the bottom wall of the marking hole 501 and symmetrically arranged with each other. The two telescopic tubes 701 are slidably connected with telescopic rods 702. One end of the two telescopic rods 702 is connected to the circular plate 502. The other ends of the two telescopic rods 702 are located in the telescopic tube 701 and are fixedly connected with a telescopic plate 703. The telescopic rod 702 is located in the inner side wall of the telescopic tube 701 and is sleeved with a spring 704. The two ends of the spring 704 are respectively connected to the telescopic plate 703 and the inner wall of the telescopic tube 701;

[0044] It should be noted here that the telescopic component is provided to provide guidance and reset functions for the movement of the marker pen 503 .

[0045] See also Figure 5 , Figure 6 and Figure 7The fixing assembly shown in the figure includes two mutually symmetrically arranged fixing tubes 801 fixedly connected to the side of the base 102 close to the positioning block 201, the side walls of the two fixing tubes 801 are provided with two mutually symmetrically arranged sliding holes 802, the four sliding holes 802 are slidably connected with fixing blocks 803, the four fixing blocks 803 are provided with inclined surfaces 804 on the side close to the positioning block 201, the positioning block 201 is provided with two limiting holes 805 on the side close to the base 102, the inner walls of the two limiting holes 805 are provided with annular limiting grooves 806, the two annular limiting grooves 806 are matched with the fixing blocks 803, and the two fixing tubes 801 are provided with a pushing assembly for pushing the two fixing blocks 803;

[0046] It should be noted here that: the setting of the fixing component is used to fix the connection between the positioning block 201 and the base 102, so that the positioning is tight and reliable, ensuring compliance with the drawing requirements and ensuring the inspection quality.

[0047] See also Figure 5 , Figure 6 and Figure 7 The pushing assembly shown in the figure includes a pushing plate 1001 slidably connected to the fixed tube 801, the pushing plate 1001 is connected to the bottom wall of the fixed tube 801 through a telescopic assembly, a strip plate 1002 is fixedly connected to one side of the pushing plate 1001 close to the two fixed blocks 803, a square plate 1003 is fixedly connected to the opposite side of the two fixed blocks 803, the two square plates 1003 are provided with oblique grooves 1004, the two oblique grooves 1004 are slidably connected with pushing pins 1005, the two pushing pins 1005 are connected to the strip plate 1002, and the base 102 is provided with a moving assembly for synchronously moving the two pushing plates 1001;

[0048] It should be noted here that: by setting the pushing component, it is convenient to push the two fixing blocks 803 to move closer to each other, thereby realizing the connection limit between the base 102 and the positioning block 201.

[0049] See also Figure 5 and Figure 6 The moving assembly shown in the figure includes a moving hole 1101 opened on the side of the base 102 away from the positioning block 201, the moving hole 1101 is slidably connected to a moving plate 1102, and the side of the moving plate 1102 close to the positioning block 201 is fixedly connected to two moving rods 1103, and one end of the two moving rods 1103 is connected to the push plate 1001;

[0050] It should be noted here that: by setting up the movable component, the connection and fixation between the positioning block 201 and the base 102 can be released, thereby realizing a detachable connection between the positioning block 201 and the base 102 and improving the convenience of connection between the positioning block 201 and the base 102.

[0051] Working principle: When testing the inclination angle between the leaf spring pad, the pressure plate and the bridge housing, firstly select a suitable positioning block 201 (the function of the positioning block 201 is to simulate the bridge housing body) according to the cross section of the bridge housing and the inclination angle of the leaf spring, then select a matching positioning pin 303 according to the aperture size of the leaf spring pad, and then use it to detect the aperture of the leaf spring pad, finally select a matching base 102 according to the position of the hole distance of the leaf spring pressure plate, and select a guide sleeve 402 of a suitable size according to the aperture size of the leaf spring pressure plate;

[0052] After all the components are selected, the positioning block 201 is plugged into the base 102 by using the positioning guide of the square positioning key 203 and the positioning hole 202. In the process of plugging the positioning block 201 into the base 102, when the two limiting holes 805 at the bottom of the positioning block 201 are inserted into the fixing tube 801, the fixing tube 801 is continuously inserted into the limiting holes 805 when the positioning block 201 slides close to the base 102. When the two fixing blocks 805 on the side wall of the fixing tube 801 are inserted into the fixing tube 801, the fixing tube 801 is continuously inserted into the limiting holes 805. When the two fixing blocks 803 abut against the side wall of the limiting hole 805, the interaction force of the inclined surface 804 and the guiding action of the telescopic component will push the two fixing blocks 803 to move closer to each other. After the two fixing blocks 803 are retracted into the fixing tube 801, as the positioning block 201 and the base 102 continue to approach each other, when the two fixing blocks 803 match the annular limiting groove 806 in the limiting hole 805, the push plate 1001 will be driven to slide in the fixing tube 801 under the elastic action of the telescopic component.

[0053] When the push plate 1001 slides in the fixed tube 801, the push pins 1005 on the two strip plates 1002 will be synchronously driven to slide on the inclined groove 1004 on the square plate 1003, and then the two fixed blocks 803 will be pushed away from each other under the interaction force between the push pin 1005 and the inclined groove 1004 and the guiding action of the telescopic component, so that the two fixed blocks 803 are inserted into the annular limiting groove 806 and abut against the bottom wall of the annular limiting groove 806, so that the connection and fixation between the positioning block 201 and the base 102 are realized by the abutting action of the two fixed blocks 803;

[0054] After the positioning block 201 and the base 102 are connected and fixed, the leaf spring pad can be pressed Figure 1As shown, it is placed on the positioning block 201 (since the leaf spring pad and the pressure plate are required to be tilted at a fixed angle with the bridge housing body during welding, the positioning block 201 is close to the leaf spring pad and the pressure plate and is also tilted at a certain angle). Since the positioning block 201 is used to simulate the size of the bridge housing body, the positioning block 201 is matched with the shape of the bridge housing body. Therefore, after the leaf spring pad and the pressure plate are fitted with the positioning block 201, the driving disk 603 can be rotated to drive the cams 602 on the driving rod 601 to rotate. During the rotation of each cam 602, the cam 602 will be guided by the interaction force between the cam 602 and the circular plate 502 and the guiding action of the telescopic component. , push each marker pen 503 located in the same vertical arrangement to move close to the leaf spring pad and the pressure plate, so that the marker pen 503 contacts the surface of the leaf spring pad and the pressure plate, thereby making marks on the surface of the leaf spring pad and the pressure plate. After driving the multiple groups of marker pens 503 arranged vertically, the leaf spring pad and the pressure plate can be removed from the positioning block 201, and then by checking the color mark of the marker pen 503 on the surface of the leaf spring pad and the pressure plate, it can be intuitively judged whether the inclination angle of the leaf spring pad and the pressure plate meets the requirements, thereby realizing the detection of whether the bridge housing body and the leaf spring pad and the pressure plate are tightly attached and whether there is interference;

[0055] When it is necessary to detect the position and size of the leaf spring pad hole, after placing the leaf spring pad on the positioning block 201, the positioning pin 303 can be inserted from the hole of the leaf spring pad, and then it is determined whether there is a large gap between the positioning pin 303 and the leaf spring pad hole and whether the insertion rod 302 at one end of the positioning pin 303 can be accurately inserted into the insertion hole 301 on the positioning block 201, thereby realizing the detection of the position and size of the leaf spring pad hole;

[0056] When it is necessary to detect the position and aperture of the four holes of the leaf spring pressure plate, after placing the leaf spring pressure plate on the positioning block 201, hold the U-shaped handle 405, insert the four plug posts 404 on one side of the connecting plate 403 into the guide sleeves 402 on the four mounting holes 401, and then judge whether there is a large gap between the four plug posts 404 and the guide sleeves 402 and whether the four plug posts 404 can be accurately inserted into the guide sleeves 402, thereby realizing the detection of the position and aperture of the four holes of the leaf spring pressure plate;

[0057] In summary, the same inspection fixture can be used to detect the inclination angle of the leaf spring pad and the pressure plate, whether they are close to the bridge housing body, and whether there is interference, as well as the position and size of the leaf spring pad hole and the position and aperture of the four holes of the leaf spring pressure plate. Compared with manual measurement, it can not only simulate the positional relationship between the leaf spring pad, the pressure plate and the bridge housing body during welding, thereby improving the detection accuracy, but also greatly reduce the tooling adjustment time and improve the detection efficiency. At the same time, the various components of the inspection fixture are modularized and universally designed, and the various components of the inspection fixture can be replaced at will. By replacing different bases 102, positioning blocks 201, and positioning pins 303, the tooling can be quickly switched and combined at will, so that it can be used to detect leaf spring pads and leaf spring pressure plates of different models, thereby improving the flexibility and applicability of the detection. The surface roughness of the positioning block 201 is relatively high, which can ensure the flatness and verticality of the inner cavity of the leaf spring pad and the leaf spring pressure plate, thereby ensuring the detection quality of the parts.

[0058] After the inspection of the leaf spring pad and the pressure plate is completed, the movable plate 1102 can be pushed to slide in the movable hole 1101, and then the pushing plate 1001 can be pushed to slide in the fixed tube 801 through the moving rod 1103, and further by utilizing the interaction force between the pushing pin 1005 and the inclined groove 1004 and the guiding action of the telescopic component, the two fixed blocks 803 are pushed to retract into the fixed tube 801, thereby releasing the connection and fixation between the positioning block 201 and the base 102, thereby realizing a detachable connection between the positioning block 201 and the base 102 and improving the convenience of connection between the positioning block 201 and the base 102.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] 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 new type of leaf spring pad and pressure plate inspection fixture, including: A plate body (101) and a base (102); It is characterized by further comprising: A first detection component disposed on the base (102) for detecting the inclination angle between the leaf spring pad, the pressure plate and the bridge housing; A second detection component disposed in the first detection component for detecting the position and size of the hole of the leaf spring pad; A third detection component is arranged on the base (102) and is used to detect the position and hole diameter of the four holes of the leaf spring pressure plate.

2. A new type of leaf spring pad and pressure plate inspection fixture according to claim 1, characterized in that: The first detection component is arranged on a positioning block (201) of the base (102); the positioning block (201) is arranged similarly to the bridge housing body; a positioning hole (202) is provided on a side of the positioning block (201) close to the base (102); a square positioning key (203) is slidably connected to the positioning hole (202); one end of the square positioning key (203) is connected to the base (102); the base (102) is provided with a fixing component for fixing the positioning block (201); and the positioning block (201) is provided with a marking component for marking the degree of adhesion between the leaf spring pad, the pressure plate and the positioning block (201).

3. A new type of leaf spring pad and pressure plate inspection fixture according to claim 2, characterized in that: The second detection component comprises a fixing hole (304) provided on a side of the positioning block (201) away from the base (102); a plug hole (301) is provided on a bottom wall of the fixing hole (304); an insertion rod (302) is slidably connected to the plug hole (301); and a positioning pin (303) is fixedly connected to one end of the insertion rod (302) away from the positioning block (201).

4. A new type of leaf spring pad and pressure plate inspection fixture according to claim 3, characterized in that: The third detection component includes four mounting holes (401) opened on the base (102), the four mounting holes (401) are inserted with guide sleeves (402), the side of the base (102) close to the positioning block (201) is slidably connected with a connecting plate (403), the side of the connecting plate (403) close to the base (102) is connected with four plug posts (404) by bolts, the four plug posts (404) are matched with the guide sleeves (402), and the side of the connecting plate (403) away from the base (102) is fixedly connected with a U-shaped handle (405).

5. A new type of leaf spring pad and pressure plate inspection fixture according to claim 4, characterized in that: The marking assembly comprises a plurality of groups of marking holes (501) arranged in a vertical direction and opened on a side of the positioning block (201) away from the base (102); each of the marking holes (501) is connected to a circular plate (502) via a telescopic assembly; each of the circular plates (502) is detachably connected to a marking pen (503) on a side away from the base (102); and the positioning block (201) is provided with a driving assembly for driving each of the marking pens (503) arranged in the same vertical direction.

6. A new type of leaf spring pad and pressure plate inspection fixture according to claim 5, characterized in that: The driving assembly comprises a driving rod (601) rotatably connected to the positioning block (201); the driving rod (601) is located at a side wall inside each marking hole (501) and is fixedly connected to a cam (602); each cam (602) is located at a side of the circular plate (502) away from the marking pen (503); and one end of the driving rod (601) located outside the positioning block (201) is fixedly connected to a driving disk (603).

7. A new type of leaf spring pad and pressure plate inspection fixture according to claim 6, characterized in that: The telescopic assembly comprises two telescopic tubes (701) fixedly connected to the bottom wall of the marking hole (501) and symmetrically arranged with each other. The two telescopic tubes (701) are slidably connected with telescopic rods (702). One end of the two telescopic rods (702) is connected to the circular plate (502). The other ends of the two telescopic rods (702) are located in the telescopic tube (701) and are fixedly connected with a telescopic plate (703). The telescopic rod (702) is located in the inner side wall of the telescopic tube (701) and is sleeved with a spring (704). The two ends of the spring (704) are respectively connected to the telescopic plate (703) and the inner wall of the telescopic tube (701).

8. A new type of leaf spring pad and pressure plate inspection fixture according to claim 7, characterized in that: The fixing assembly comprises two mutually symmetrically arranged fixing tubes (801) fixedly connected to a side of the base (102) close to the positioning block (201); two mutually symmetrically arranged sliding holes (802) are provided on the side walls of the two fixing tubes (801); four of the sliding holes (802) are slidably connected to fixing blocks (803); a slope (804) is provided on a side of the four fixing blocks (803) close to the positioning block (201); two limiting holes (805) are provided on a side of the positioning block (201) close to the base (102); annular limiting grooves (806) are provided on the inner walls of the two limiting holes (805); the two annular limiting grooves (806) are matched with the fixing blocks (803); and the two fixing tubes (801) are provided with a pushing assembly for pushing the two fixing blocks (803).

9. A new type of leaf spring pad and pressure plate inspection fixture according to claim 8, characterized in that: The pushing assembly comprises a pushing plate (1001) slidably connected to a fixed tube (801); the pushing plate (1001) is connected to the bottom wall of the fixed tube (801) via a telescopic assembly; a strip plate (1002) is fixedly connected to one side of the pushing plate (1001) close to two fixed blocks (803); a square plate (1003) is fixedly connected to the opposite side of the two fixed blocks (803); the two square plates (1003) are provided with oblique grooves (1004); the two oblique grooves (1004) are slidably connected with pushing pins (1005); the two pushing pins (1005) are connected to the strip plate (1002); and the base (102) is provided with a moving assembly for synchronously moving the two pushing plates (1001).

10. A new type of leaf spring pad and pressure plate inspection fixture according to claim 9, characterized in that: The moving assembly comprises a moving hole (1101) opened on a side of the base (102) away from the positioning block (201); the moving hole (1101) is slidably connected to a moving plate (1102); a side of the moving plate (1102) close to the positioning block (201) is fixedly connected to two moving rods (1103); one end of the two moving rods (1103) is connected to the pushing plate (1001).

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