Novel electric drive axle housing large flange thread bottom hole position accuracy testing fixture

Abstract

The invention discloses a novel electric drive axle housing large flange thread bottom hole position degree testing fixture, and relates to the novel electric drive axle housing processing technology field, the novel electric drive axle housing large flange thread bottom hole position degree testing fixture comprises a circular testing plate arranged above an electric drive axle housing, and the electric drive axle housing comprises a housing. According to the invention, each group of flange thread bottom holes in the shell are manually inspected through the circular inspection plate, and in the inspection process, whether the position degree of the flange thread bottom holes at the inspection position is abnormal and the amplitude of the abnormality can be judged according to whether the first pointer moves and the amplitude of the movement; the whole verification and detection process is simple and convenient to operate and easy to recognize and judge, the probability of errors generated in the detection process is reduced, in addition, in the detection process, through the arrangement of the multiple sets of T-shaped detection cylinders, the position degrees of the multiple sets of flange threaded bottom holes can be detected and judged at the same time, and the detection efficiency is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of new electric drive bridge housing processing technology, specifically a new type of electric drive bridge housing large flange thread bottom hole position gauge. Background Technology

[0002] The new electric drive axle housing is a product that integrates new design, new materials and new processes on the basis of traditional axle housing. It aims to meet the needs of modern vehicles for lightweight, high performance and high integration. During the design and manufacturing process, the new electric drive axle housing is provided with flange threaded bottom holes. The main purpose of the flange threaded bottom holes is to achieve reliable connection between components, facilitate installation and maintenance, optimize structural layout and ensure connection strength and sealing.

[0003] After the production and processing of the new electric drive axle housing, it is necessary to inspect the position of the flange threaded bottom holes on the new electric drive axle housing. The existing inspection methods are mainly manual inspection and three-coordinate equipment inspection. Since there are multiple sets of flange threaded bottom holes on the new electric drive axle housing, manual inspection is prone to inspection errors, and the multiple sets of flange threaded bottom holes on the new electric drive axle housing affect the inspection efficiency. On the other hand, inspection by three-coordinate equipment will significantly increase the inspection cost. Therefore, we propose a new type of instrument for inspecting the position of the large flange threaded bottom holes of the new electric drive axle housing. Summary of the Invention

[0004] The purpose of this invention is to provide a novel gauge for the position of the threaded bottom hole of the large flange of an electric drive bridge housing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel electric drive bridge housing large flange threaded bottom hole position gauge, comprising a circular inspection plate disposed above the electric drive bridge housing, the electric drive bridge housing comprising a housing, the housing being provided with multiple sets of flange threaded bottom holes for connection with the flange, and further comprising: The mounting and connecting assembly is located between the circular inspection plate and the flange threaded bottom hole, and is used for the installation and connection of the circular inspection plate during the inspection process. An inspection assembly is set on a circular inspection plate for inspecting the position of the flange thread bottom hole. Multiple sets of the inspection assembly are provided, and each set of inspection assemblies is matched with each set of flange thread bottom holes. In addition, an identification component is disposed inside the inspection component for identification during the inspection process, and a transmission component is disposed between the identification component and the inspection component for connecting and transmitting.

[0006] Preferably, the inspection component includes a T-shaped inspection cylinder, and the circular inspection plate has multiple sets of mounting holes. The T-shaped inspection cylinder is detachably installed to the mounting holes via threads. An indicator cylinder is fixed to the upper end of the T-shaped inspection cylinder, and a sliding plate is slidably connected inside the indicator cylinder. A slot is formed on the indicator cylinder, and a first pointer is fixed on the sliding plate. The first pointer is located inside the slot. A first scale for identifying the rise and fall of the first pointer is provided on the outer side of the indicator cylinder. A pushing component for raising and lowering the sliding plate is provided on the T-shaped inspection cylinder.

[0007] Preferably, the pushing component includes a mounting cylinder disposed inside the T-shaped inspection cylinder, and the upper end of the T-shaped inspection cylinder is slidably connected to multiple sets of lifting rods, the two ends of which are respectively fixed to the slide plate and the mounting cylinder.

[0008] Preferably, the transmission assembly includes a conical groove formed at the bottom of the mounting cylinder, a push rod is provided inside the T-shaped inspection cylinder, one end of the push rod is fixed with a push pin for driving against the conical groove, the push pin is located inside the conical groove, and a support assembly for supporting the installation of the push rod is provided inside the T-shaped inspection cylinder.

[0009] Preferably, the support assembly includes a support cylinder centrally located inside the T-shaped inspection cylinder. The support cylinder is fixed to the inner wall of the T-shaped inspection cylinder by multiple sets of support plates. A spherical groove is provided on the inner side of the support cylinder, and a ball is rotatably connected inside the spherical groove. The push rod is centrally fixed on the ball.

[0010] Preferably, the identification components are provided in multiple sets, and the multiple sets of identification components are arranged in a circular array on the T-shaped inspection cylinder. The identification component includes a groove formed on the T-shaped inspection cylinder, the groove communicating with the interior of the T-shaped inspection cylinder, and an identification plate slidably connected to the groove. One end of the identification plate located on the outside of the T-shaped inspection cylinder has a ball for abutting against the inner side of the flange thread bottom hole, and the lower end of the identification plate has an inclined surface for abutting against the inner wall of the flange thread bottom hole. A spring component for spring force transmission is provided between the push rod and the identification plate.

[0011] Preferably, the elastic component includes a mounting plate disposed inside the T-shaped inspection cylinder. The mounting plate is rotatably connected to the push rod via a pin. Multiple sets of sliding rods are fixed on the mounting plate. A sleeve is slidably connected to the sliding rod. One end of the sleeve is fixed to the identification plate. A spring is sleeved on the outside of the sleeve. Both ends of the spring are connected to the mounting plate and the identification plate, respectively.

[0012] Preferably, the T-shaped inspection cylinder is provided with a judgment component for assisting in the identification and judgment of the inner diameter of the flange thread bottom hole during the inspection process. The judgment component is provided in multiple sets, and each set of judgment components is respectively set in correspondence with each set of identification components. The judgment component includes a square groove opened at the upper end of the T-shaped inspection cylinder, and a second pointer is slidably connected to the square groove. The upper end of the T-shaped inspection cylinder is provided with a second scale for identifying the sliding distance of the second pointer. The second pointer is connected and fixed to the identification plate through a transmission rod.

[0013] Preferably, the mounting connection assembly includes a sliding hole formed on a circular inspection plate, a mounting screw for threaded connection with the flange threaded bottom hole is slidably connected to the sliding hole, and a drive pin for rotating the mounting screw is fixed at one end of the mounting screw.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This application uses a circular inspection plate to manually inspect the flange threaded bottom holes on the shell. During the inspection, the position of the flange threaded bottom holes at the inspection location can be determined by whether the first pointer moves and the extent of the movement. The entire inspection process is simple, convenient, and easy to identify and judge, reducing the probability of errors during the inspection. In addition, by setting up multiple T-shaped inspection cylinders, the position of multiple flange threaded bottom holes can be inspected and judged simultaneously, ensuring the efficiency of the inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of the present invention; Figure 2 This is a schematic diagram of the shell structure of the present invention; Figure 3 This is a schematic diagram of the circular plate structure of the present invention; Figure 4 This is a schematic diagram of the T-shaped inspection cylinder structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the T-shaped inspection cylinder of the present invention; Figure 6 This is a schematic diagram of the transmission component and support component of the present invention; Figure 7 This is a schematic diagram of the identification component and elastic component structure of the present invention; Figure 8 This is a schematic diagram of the support component structure of the present invention; Figure 9 This is a schematic diagram of the structure of the inspection component, the pushing component, and the transmission component of the present invention; Figure 10 This is a schematic diagram of the state of the inspection component when the present invention is in normal operation; Figure 11 This is a schematic diagram of the state of the inspection component when an anomaly is detected according to the present invention.

[0016] In the diagram: 1-Circular inspection plate; 201-Shell; 202-Flange threaded bottom hole; 301-T-type inspection cylinder; 302-Marking cylinder; 303-Slide plate; 304-Slot; 305-First pointer; 306-First graduation; 307-Mounting hole; 401-Mounting cylinder; 402-Lifting rod; 501-Conical groove; 502-Push rod; 503-Push pin; 601-Support cylinder; 602- Support plate; 603-spherical groove; 604-ball; 701-slide groove; 702-identification plate; 703-ball; 704-sloping surface; 801-mounting plate; 802-slide rod; 803-sleeve; 804-spring; 901-square groove; 902-second pointer; 903-second scale; 904-transmission rod; 1001-slide hole; 1002-mounting screw; 1003-drive pin. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 Please see Figures 1-11 The figure shows a novel electric drive bridge housing flange threaded bottom hole position gauge, including a circular inspection plate 1 disposed above the electric drive bridge housing. The electric drive bridge housing includes a housing 201, on which multiple sets of flange threaded bottom holes 202 for connection with the flange are provided, and also includes: The installation and connection assembly is set between the circular inspection plate 1 and the flange threaded bottom hole 202 for the installation and connection of the circular inspection plate 1 during the inspection process; The inspection assembly is set on the circular inspection plate 1 for inspecting the position of the flange thread bottom hole 202. There are multiple sets of inspection assemblies, and each set of inspection assemblies is matched with each set of flange thread bottom holes 202. In addition, an identification component is installed inside the inspection component for identification during the inspection process, and a transmission component is provided between the identification component and the inspection component for connection and transmission. It should be noted that this application uses a circular inspection plate 1 to manually inspect each set of flange thread bottom holes 202 on the housing 201. During the inspection, the position of the flange thread bottom hole 202 at the inspection location can be determined by whether the first pointer 305 moves and the extent of the movement. The entire inspection process is simple, convenient, and easy to identify and judge, reducing the probability of errors during the inspection. In addition, during the inspection, the position of multiple sets of flange thread bottom holes 202 can be inspected and judged simultaneously by setting multiple sets of T-shaped inspection cylinders 301, ensuring the efficiency of the inspection.

[0019] Preferably, the inspection component includes a T-shaped inspection cylinder 301, and a circular inspection plate 1 with multiple sets of mounting holes 307. The T-shaped inspection cylinder 301 and the mounting holes 307 are detachably installed by means of threads. An indicator cylinder 302 is fixed to the upper end of the T-shaped inspection cylinder 301. A slide plate 303 is slidably connected inside the indicator cylinder 302. A slot 304 is provided on the indicator cylinder 302. A first pointer 305 is fixed on the slide plate 303. The first pointer 305 is located inside the slot 304. A first scale 306 for identifying the lifting and lowering amplitude of the first pointer 305 is provided on the outside of the indicator cylinder 302. A pushing component for lifting and lowering the slide plate 303 is provided on the T-shaped inspection cylinder 301. It should be noted that when there is a deviation in the position of the flange threaded bottom hole 202 at the inspection position, the transmission will push the first pointer 305 to move upward. By observing whether the first pointer 305 moves and the extent of the movement, it can be determined whether there is an abnormality in the position of the flange threaded bottom hole 202 at the inspection position and the extent of the abnormality. The entire verification and inspection process is simple, convenient and easy to identify and judge, reducing the probability of errors during the inspection process.

[0020] Preferably, the pushing component includes a mounting cylinder 401 disposed inside the T-shaped inspection cylinder 301, and a plurality of lifting rods 402 are slidably connected to the upper end of the T-shaped inspection cylinder 301, with the two ends of the lifting rods 402 being fixed to the slide plate 303 and the mounting cylinder 401 respectively. It should be noted here that when the position of the threaded bottom hole 202 of the flange to be tested is offset, the installation cylinder 401 is pushed to move upward inside the T-shaped inspection cylinder 301 through the transmission. During the movement of the installation cylinder 401, the sliding plate 303 and the first pointer 305 on the sliding plate 303 are pushed upward through the connecting action of the lifting rod 402.

[0021] Preferably, the transmission assembly includes a conical groove 501 formed at the bottom of the mounting cylinder 401, a push rod 502 is provided inside the T-shaped inspection cylinder 301, one end of the push rod 502 is fixed with a push pin 503 for transmission against the conical groove 501, the push pin 503 is located inside the conical groove 501, and a support assembly for mounting and supporting the push rod 502 is provided inside the T-shaped inspection cylinder 301; It should be noted here that when the position of the threaded bottom hole 202 of the flange to be tested is offset, the push rod 502 under force is deflected around the ball 604 as the origin through transmission. During the deflection process, the push pin 503 at one end of the push rod 502 moves synchronously. During the movement of the push pin 503, the push pin 503 and the tapered groove 501 inside the mounting cylinder 401 are pushed to move upward inside the T-shaped inspection cylinder 301 by the action of the push pin 503 against it.

[0022] Preferably, the support assembly includes a support cylinder 601 centrally disposed inside the T-shaped inspection cylinder 301. The support cylinder 601 is fixed to the inner wall of the T-shaped inspection cylinder 301 by multiple sets of support plates 602. A spherical groove 603 is provided on the inner side of the support cylinder 601. A ball bearing 604 is rotatably connected inside the spherical groove 603. The push rod 502 is centrally fixed on the ball bearing 604. It should be noted here that the spherical groove 603 and the ball 604 on the support cylinder 601 facilitate the deflectable support of the push rod 502.

[0023] Preferably, multiple sets of identification components are provided, and the multiple sets of identification components are arranged in a ring array on the T-shaped inspection cylinder 301. The identification component includes a groove 701 opened on the T-shaped inspection cylinder 301, the groove 701 communicating with the interior of the T-shaped inspection cylinder 301, an identification plate 702 slidably connected on the groove 701, a ball 703 for abutting against the inner side of the flange thread bottom hole 202 at one end of the identification plate 702 located on the outside of the T-shaped inspection cylinder 301, and an inclined surface 704 for abutting against the inner wall of the flange thread bottom hole 202 at the lower end of the identification plate 702. A spring component for spring force transmission is provided between the push rod 502 and the identification plate 702. It should be noted here that: when the circular inspection plate 1 is pushed toward the housing 201, during the pushing process, the lower ends of each group of T-shaped inspection cylinders 301 are inserted into the inner side of each group of flange thread bottom holes 202. During the insertion of the lower ends of the T-shaped inspection cylinders 301, the inclined surface 704 on each group of identification plates 702 abuts against the inner wall of the flange thread bottom hole 202. During the abutment process, each group of identification plates 702 is pushed by force to move toward the inner side of the T-shaped inspection cylinder 301. After one end of the T-shaped inspection cylinder 301 is inserted, the elastic component pushes each group of identification plates 702 toward the inner wall of the flange thread bottom hole 202 and makes the ball 604 at the front end of the identification plate 702 abut against the inner wall of the flange thread bottom hole 202. Through the rolling action of the ball 604 in the spherical groove 603, it is convenient to assist one end of the T-shaped inspection cylinder 301 to be properly inserted into the interior of the flange thread bottom hole 202 and to move. In addition, during the process of inserting one end of the T-type inspection cylinder 301 into the flange thread bottom hole 202, when the position of the flange thread bottom hole 202 to be inspected does not shift, the push rod 502 does not move through the transmission. However, when the position of the flange thread bottom hole 202 to be inspected shifts, the push rod 502 moves through the transmission.

[0024] Preferably, the elastic component includes a mounting plate 801 disposed inside the T-shaped inspection cylinder 301. The mounting plate 801 is rotatably connected to the push rod 502 via a pin. Multiple sets of sliding rods 802 are fixed on the mounting plate 801. A sleeve 803 is slidably connected to the sliding rod 802. One end of the sleeve 803 is fixed to the identification plate 702. A spring 804 is sleeved on the outside of the sleeve 803. The two ends of the spring 804 are respectively connected to the mounting plate 801 and the identification plate 702. It should be noted that during the contraction movement of the identification plate 702 under force, each set of sliding rods 802 slides on each set of sleeves 803. During the sliding process, the spring 804 is deformed under force to generate elastic force. Through the elastic force of the spring 804, a pushing force is generated on the push rod 502.

[0025] Preferably, the T-shaped inspection cylinder 301 is provided with a judgment component for assisting in the identification and judgment of the inner diameter of the flange thread bottom hole 202 during the inspection process. Multiple judgment components are provided, and each set of judgment components corresponds to one of the identification components. The judgment component includes a square groove 901 opened at the upper end of the T-shaped inspection cylinder 301. A second pointer 902 is slidably connected to the square groove 901. A second scale 903 for identifying the sliding distance of the second pointer 902 is provided at the upper end of the T-shaped inspection cylinder 301. The second pointer 902 is connected and fixed to the identification plate 702 through a transmission rod 904. It should be noted that during the inspection process, as one end of the T-shaped inspection cylinder 301 is inserted into the flange threaded bottom hole 202, each set of identification plates 702 contracts under force. During the contraction of the identification plates 702, the transmission rod 904 drives the second pointer 902 to move synchronously. The amplitude of the movement of the identification plates 702 and the second pointer 902 changes synchronously with the change of the inner diameter of the flange threaded bottom hole 202. Therefore, by identifying the amplitude of the movement of each set of second pointers 902, the inner diameter of the flange threaded bottom hole 202 can be quickly identified, which facilitates the simultaneous detection of the inner diameter of the flange threaded bottom hole 202 while inspecting its position.

[0026] Preferably, the mounting connection assembly includes a sliding hole 1001 opened on the circular test plate 1, a mounting screw 1002 for threaded connection with the flange threaded bottom hole 202 is slidably connected to the sliding hole 1001, and a drive pin 1003 for rotating the mounting screw 1002 is fixed at one end of the mounting screw 1002. It should be noted that during the inspection process, the circular inspection plate 1 is moved and placed above the housing 201. After the circular inspection plate 1 is moved, the drive pin 1003 pushes the mounting screw 1002 to slide on the sliding hole 1001 and makes one end of the mounting screw 1002 threadedly connected to the flange threaded bottom hole 202. During the connection process, the connection between the mounting screw 1002 and the flange threaded bottom hole 202 and the sliding action of the circular inspection plate 1 on the mounting screw 1002 are used to perform the initial installation and connection for the subsequent inspection of the circular inspection plate 1.

[0027] In this solution, a novel electric drive bridge housing large flange threaded bottom hole position gauge includes the following steps: This application uses a circular inspection plate 1 to manually inspect each set of flange threaded bottom holes 202 on the housing 201. During the inspection, the circular inspection plate 1 is moved and placed above the housing 201. After the circular inspection plate 1 is moved, the drive pin 1003 pushes the mounting screw 1002 to slide on the sliding hole 1001 and makes one end of the mounting screw 1002 threadedly connected to the flange threaded bottom hole 202. During the connection process, the connection between the mounting screw 1002 and the flange threaded bottom hole 202 and the sliding action of the circular inspection plate 1 on the mounting screw 1002 are used to perform the initial installation connection for the subsequent inspection of the circular inspection plate 1. After the circular inspection plate 1 is installed and connected to the housing 201, the T-shaped inspection cylinders 301 on the circular inspection plate 1 are vertically aligned with the remaining flange threaded bottom holes 202 on the housing 201. After alignment, the circular inspection plate 1 is pushed towards the housing 201. During the pushing process, the lower ends of the T-shaped inspection cylinders 301 are inserted into the inner side of the flange threaded bottom holes 202. During the insertion of the lower ends of the T-shaped inspection cylinders 301, the inclined surfaces 704 on the identification plates 702 abut against the inner wall of the flange threaded bottom holes 202. During the abutment process, the identification plates 702 are pushed towards the inner side of the T-shaped inspection cylinders 301. After one end of the T-shaped inspection cylinder 301 is inserted, the elastic component pushes the identification plates 702 towards the inner wall of the flange threaded bottom holes 202 and makes the identification plates 702 move towards the inner side of the T-shaped inspection cylinders 301. 2. The front end of the ball bearing 604 abuts against the inner wall of the flange threaded bottom hole 202. The rolling action of the ball bearing 604 in the spherical groove 603 facilitates the normal insertion of one end of the T-shaped inspection cylinder 301 into the flange threaded bottom hole 202 and its movement. During the insertion of one end of the T-shaped inspection cylinder 301 into the flange threaded bottom hole 202, when the position of the flange threaded bottom hole 202 does not shift, the T-shaped inspection cylinder 301 and the flange threaded bottom hole 202 remain concentric. This ensures that during the insertion of the T-shaped inspection cylinder 301, the contraction amplitude of each group of identification plates 702 is consistent. This results in the corresponding elastic components of each group of identification plates 702 generating the same elastic force on the push rod 502 after contraction. Because the elastic force generated by each group of elastic components around the push rod 502 is the same, the push rod 502 does not move at this time (see...). Figure 10 When the position of the flange threaded bottom hole 202 shifts, the T-type inspection cylinder 301 becomes eccentric with the flange threaded bottom hole 202. This causes the shrinkage amplitude of each set of identification plates 702 to deviate during the insertion of the T-type inspection cylinder 301. Consequently, the elastic components corresponding to each set of identification plates 702 generate different elastic forces on the push rod 502 after shrinkage. Because the elastic forces generated by the various sets of elastic components around the push rod 502 are different, the push rod 502 moves at this time (see...). Figure 11During the movement of push rod 502, the auxiliary support of the support component causes the push rod 502 to deflect around the ball 604 as the origin. During the deflection, the push pin 503 at one end of push rod 502 moves synchronously. During the movement of push pin 503, the push pin 503, through its contact with the tapered groove 501 inside the mounting cylinder 401, pushes the mounting cylinder 401 upward within the T-shaped inspection cylinder 301. During the movement of mounting cylinder 401, the lifting rod 402 connects and pushes the slide plate 303 and the first pointer 305 on the slide plate 303 upward. Therefore, when there is a deviation in the position of the flange threaded bottom hole 202 at the inspection position, the transmission will push the first pointer 305 to move upward. By observing whether the first pointer 305 moves and the extent of the movement, it can be determined whether there is an abnormality in the position of the flange threaded bottom hole 202 at the inspection position and the extent of the abnormality. The entire verification and inspection process is simple, convenient and easy to identify and judge, reducing the probability of errors during the inspection process. In addition, during the inspection process, by setting multiple sets of T-shaped inspection cylinders 301, the position of multiple sets of flange threaded bottom holes 202 can be inspected and judged simultaneously, ensuring the efficiency of the inspection. Furthermore, during the inspection process, as one end of the T-shaped inspection cylinder 301 is inserted into the flange threaded bottom hole 202, each set of identification plates 702 undergoes a contraction movement under force. During the contraction movement of the identification plates 702, the second pointer 902 is driven to move synchronously through the transmission rod 904. The amplitude of the movement of the identification plates 702 and the second pointer 902 changes synchronously with the change of the inner diameter of the flange threaded bottom hole 202. Therefore, by identifying the movement amplitude of each set of second pointers 902, the inner diameter of the flange threaded bottom hole 202 can be quickly identified, which facilitates the simultaneous detection of the inner diameter of the flange threaded bottom hole 202 while inspecting its position.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel gauge for the position of the threaded bottom hole of the large flange of an electric drive bridge housing, comprising: A circular inspection plate (1) is provided above the electric drive bridge housing. The electric drive bridge housing includes a housing (201) and the housing (201) is provided with multiple sets of flange thread bottom holes (202) for connection with flanges. Its characteristic is that it further includes: The installation connection assembly is set between the circular inspection plate (1) and the flange threaded bottom hole (202) for the installation connection of the circular inspection plate (1) during the inspection process; Inspection components are set on a circular inspection plate (1) for inspecting the position of the flange thread bottom hole (202). Multiple sets of inspection components are provided, and each set of inspection components is matched with each set of flange thread bottom holes (202). In addition, an identification component is disposed inside the inspection component for identification during the inspection process, and a transmission component is disposed between the identification component and the inspection component for connecting and transmitting.

2. The novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 1, characterized in that: The inspection component includes a T-shaped inspection cylinder (301), and the circular inspection plate (1) has multiple sets of mounting holes (307). The T-shaped inspection cylinder (301) and the mounting holes (307) are detachably installed by means of threads. The upper end of the T-shaped inspection cylinder (301) is fixed with a marking cylinder (302). The marking cylinder (302) is slidably connected with a sliding plate (303). The marking cylinder (302) has a slot (304). The sliding plate (303) is fixed with a first pointer (305). The first pointer (305) is located inside the slot (304). The outer side of the marking cylinder (302) is provided with a first scale (306) for identifying the rise and fall of the first pointer (305). The T-shaped inspection cylinder (301) is provided with a pushing component for raising and lowering the sliding plate (303).

3. The novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 2, characterized in that: The pushing component includes an installation cylinder (401) disposed inside the T-shaped inspection cylinder (301). The upper end of the T-shaped inspection cylinder (301) is slidably connected to multiple sets of lifting rods (402). The two ends of the lifting rods (402) are respectively fixed to the slide plate (303) and the installation cylinder (401).

4. The novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 3, characterized in that: The transmission assembly includes a conical groove (501) at the bottom of the mounting cylinder (401). A push rod (502) is provided inside the T-shaped inspection cylinder (301). One end of the push rod (502) is fixed with a push pin (503) for driving against the conical groove (501). The push pin (503) is located inside the conical groove (501). A support assembly for mounting and supporting the push rod (502) is provided inside the T-shaped inspection cylinder (301).

5. A novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 4, characterized in that: The support assembly includes a support cylinder (601) centrally located inside the T-shaped inspection cylinder (301). The support cylinder (601) and the inner wall of the T-shaped inspection cylinder (301) are fixed together by multiple sets of support plates (602). A spherical groove (603) is provided on the inner side of the support cylinder (601). A ball (604) is rotatably connected inside the spherical groove (603). The push rod (502) is centrally fixed on the ball (604).

6. A novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 5, characterized in that: The identification components are provided in multiple sets, and the multiple sets of identification components are arranged in a ring array on the T-shaped inspection cylinder (301). The identification components include a groove (701) opened on the T-shaped inspection cylinder (301), the groove (701) is connected to the interior of the T-shaped inspection cylinder (301), and an identification plate (702) is slidably connected on the groove (701). One end of the identification plate (702) located outside the T-shaped inspection cylinder (301) is provided with a ball (703) for abutting against the inner side of the flange thread bottom hole (202). The lower end of the identification plate (702) is provided with an inclined surface (704) for abutting against the inner wall of the flange thread bottom hole (202). A spring component for spring force transmission is provided between the push rod (502) and the identification plate (702).

7. A novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 6, characterized in that: The elastic component includes a mounting plate (801) disposed inside the T-shaped inspection cylinder (301). The mounting plate (801) and the push rod (502) are rotatably connected by a pin. Multiple sets of sliding rods (802) are fixed on the mounting plate (801). A sleeve (803) is slidably connected to the sliding rod (802). One end of the sleeve (803) is fixed to the identification plate (702). A spring (804) is sleeved on the outside of the sleeve (803). The two ends of the spring (804) are respectively connected to the mounting plate (801) and the identification plate (702).

8. A novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 7, characterized in that: The T-shaped inspection cylinder (301) is provided with a judgment component for assisting in the identification and judgment of the inner diameter of the flange thread bottom hole (202) during the inspection process. The judgment component is provided in multiple sets, and each set of judgment components is respectively set in correspondence with each set of identification components. The judgment component includes a square groove (901) opened at the upper end of the T-shaped inspection cylinder (301). A second pointer (902) is slidably connected to the square groove (901). The upper end of the T-shaped inspection cylinder (301) is provided with a second scale (903) for identifying the sliding distance of the second pointer (902). The second pointer (902) is connected and fixed to the identification plate (702) through a transmission rod (904).

9. A novel electric drive bridge housing large flange threaded bottom hole position gauge according to claim 1, characterized in that: The mounting connection assembly includes a sliding hole (1001) opened on a circular test plate (1), and a mounting screw (1002) for threaded connection with the flange thread bottom hole (202) is slidably connected to the sliding hole (1001). One end of the mounting screw (1002) is fixed with a drive pin (1003) for rotating the mounting screw (1002).

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