A compression testing device and method for producing engine cover plates

Abstract

The present invention discloses a pressure resistance detection device and method for the production of engine cover plates, and the present invention relates to the technical field of engine cover plate detection equipment. Compared with the prior art, the pressure resistance detection device for the production of engine cover plates can realize the effect of automatically calibrating the S-type pressure sensor, which is the main component for pressure resistance testing, without manual operation for calibration, especially without frequent manual disassembly and assembly of the S-type pressure sensor for calibration, which greatly saves manpower and improves the efficiency of calibration, can reduce the downtime of the entire detection equipment due to calibration, and reduce the impact on the efficiency of engine cover inspection. Moreover, for the connection work of the S-type pressure sensor, compared with the traditional connection using screws, the manual operation steps of disassembling and assembling the S-type pressure sensor are also reduced, and the disassembly and assembly are more convenient, which is more conducive to the maintenance of the S-type pressure sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of engine cover plate detection equipment, and in particular to a compression resistance detection device and method for engine cover plate production. Background Art

[0002] The engine cover is also called the engine hood. It consists of a sheet metal structure on the outside and a heat-insulating material on the inside. It covers the engine compartment to protect the engine and provide sound insulation.

[0003] After the sheet metal part of the engine cover is produced, it is necessary to conduct sampling tests on the produced cover. The test contents include appearance test, aging test and pressure test, etc. The existing Chinese utility model patent with announcement number CN211877615U discloses a pressure resistance performance detection device for sheet metal processing, which is used for pressure resistance testing equipment of the test piece, especially for pressure resistance testing of sheet metal parts such as engine cover. The existing technology uses a pressure sensor to complete the pressure resistance test, and drives the pressure sensor to apply pressure to the test object. The pressure resistance limit of the engine cover can be obtained by observing the change of the feedback value of the pressure sensor. Specifically, as the pressure of the pressure sensor gradually increases, the engine cover will deform after reaching the pressure resistance limit of the engine cover, and the pressure of the pressure sensor will change greatly while deforming. The pressure resistance of the engine cover can be obtained by observing the maximum pressure before the change.

[0004] In order to ensure the detection accuracy, the pressure test equipment of the engine cover needs to calibrate the pressure sensor regularly. In the prior art, it is necessary to manually remove the pressure sensor from the test equipment, and then place a test piece with a fixed weight on the pressure sensor. The calibration work can be achieved by observing the value of the pressure sensor and comparing it with the weight of the test piece. In actual use, since manufacturers need to conduct random inspections on the engine covers produced every day, the frequency of inspection is high, which increases the calibration frequency of the pressure sensor. The manual calibration operation steps are cumbersome, there are many manual operation steps, the calibration efficiency is low, and it takes a long time.

[0005] Therefore, it is necessary to provide a pressure resistance detection device and method for engine cover production to solve the above technical problems. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In order to solve the above technical problems, the present invention provides a pressure resistance detection device and method for engine cover production.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: A compression testing device for engine cover production, comprising:

[0010] Three-axis mobile platform;

[0011] A connecting component is fixed on the moving end of the three-axis mobile platform, and a pressure detection module is installed on the connecting component. The connecting component enables the pressure detection module to have two states on the moving end of the three-axis mobile platform: vertically facing upward and vertically facing downward;

[0012] The verification piece is installed on the connection component and is located above the pressure detection module. When the pressure detection module is in a vertical upward state on the connection component, the verification piece performs verification work on the pressure detection module.

[0013] Preferably, the connecting component includes a connecting frame fixed on the moving end of the three-axis mobile platform, the lower end of the connecting frame is rotatably connected to a rotating shaft, a bearing seat is fixed on the middle outer wall of the rotating shaft, the pressure detection module is inserted into the inner side of the bearing seat, a rotating component for driving the rotating shaft to rotate is fixed on the outer wall of the connecting frame, an inner support fixing component connecting the pressure detection module and the bearing seat is fixed on the inner side of the bearing seat, a synchronous driving component for driving the inner support fixing component to work is fixed on the connecting frame, and the synchronous driving component is mechanically linked with the bearing seat.

[0014] Preferably, the rotating assembly includes a motor fixed on the outer wall of the connecting frame, a worm is fixed on the output end of the motor, the worm is rotatably connected to the outer wall of the connecting frame, a worm wheel is fixed at one end of the rotating shaft close to the motor, and the worm wheel is meshingly connected to the worm.

[0015] Preferably, the pressure detection module includes an S-type pressure sensor, threaded holes are formed in the middle of the top surface and the middle of the bottom surface of the S-type pressure sensor, one end of the S-type pressure sensor is inserted into the inner side of the bearing seat, and a detection clamping rod is provided at the end of the S-type pressure sensor away from the bearing seat, the detection clamping rod is threadedly connected to the threaded hole through an external thread, and a clamping ball is fixed at the end of the detection clamping rod away from the S-type pressure sensor, and the inner support fixing assembly is sleeved on the inner side of the threaded hole of the S-type pressure sensor close to the bearing seat.

[0016] Preferably, the inner support fixing assembly includes a support bar fixed at the middle position of the inner wall of the bearing seat, and a clamping piece is symmetrically arranged on the outer wall of the support bar, and one end of the clamping piece close to the support bar is rotatably connected to two first flip bars through an axle pin, and one end of the first flip bar away from the clamping piece is rotatably connected to the outer wall of the support bar through an axle pin, and the side of the clamping piece close to the first flip bar is also rotatably connected to a second flip bar through an axle pin, and one end of the two second flip bars away from the clamping piece is rotatably connected to a sliding sleeve through an axle pin, and the sliding sleeve is slidably sleeved on the outer wall of the support bar.

[0017] Preferably, the synchronous drive assembly includes a pushing slide rod symmetrically fixed on the outer wall of the sliding sleeve, the two pushing slide rods are slidably connected to the bearing seat through the first sliding hole, the two pushing slide rods extend to the outside of the bearing seat through the end away from the S-shaped pressure sensor through the bearing seat and are rotatably connected to a roller, a cross plate is fixed on the outer wall of the lower end of the connecting frame, a driving ring is fixed on the side of the cross plate close to the rotating shaft, the axis of the driving ring of the rotating shaft coincides with the axis of the rotating shaft, the rotating shaft passes through the middle of the driving ring, a recessed groove is provided on the outer wall of the driving ring, the roller is pressed against the outer wall of the driving ring, a spring is fixed on the outer wall of the pushing slide rod close to the roller, and the end of the spring away from the pushing slide rod is fixed to the outer wall of the bearing seat.

[0018] Preferably, the verification piece includes a counterweight verification block slidably mounted on the outer wall of the upper end of the connecting frame through a second sliding hole, the bottom surface of the middle part of the counterweight verification block is hemispherical, and a limit strip is symmetrically fixed to the upper end of the connecting frame, and the limit strip cooperates with the counterweight verification block.

[0019] Preferably, a rubber sheet is fixed on the outer wall of the pressing sheet on a side away from the first turning strip.

[0020] Preferably, a cover is fixed on the outer wall of the connecting frame on the side close to the motor, and the motor, the worm gear and the worm are all located on the inner side of the cover.

[0021] The present invention also provides a compression resistance detection method for engine cover production, using a compression resistance detection device for engine cover production, which specifically includes the following steps:

[0022] A1. The engine cover to be tested is transported to the bottom of the three-axis mobile platform through the conveying equipment;

[0023] A2. The three-axis mobile platform drives the pressure detection module in the vertical downward state to move to the test position, and then drives the pressure detection module to descend to perform a pressure test on the engine cover;

[0024] A3. After a certain period of use, the connection component drives the pressure detection module to switch to a vertical upward state and calibrates the pressure detection module through a calibration piece.

[0025] (III) Beneficial effects

[0026] The present invention provides a pressure resistance detection device and method for engine cover production. Compared with the prior art, it has the following beneficial effects:

[0027] 1. With the increase of pressure resistance test work, when the calibration cycle is reached, the driving rotating assembly works to make the rotating shaft and the bearing seat drive the S-type pressure sensor to rotate, so that the pressure detection module rotates to a vertical upward state. During the rotation process, the pressing ball pushes the counterweight calibration block upward to avoid it, until the pressure detection module rotates 180 degrees to a vertical upward state, and the counterweight calibration block is pressed on the pressing ball. Then, the value of the counterweight calibration block detected by the S-type pressure sensor is compared with the standard value, so as to achieve the effect of automatic calibration. Compared with the traditional engine cover pressure resistance test equipment, which requires manual disassembly of the S-type pressure sensor for detection and then installation, it greatly reduces the manual operation steps, greatly reduces the operation steps and operation time of the calibration, has higher calibration efficiency, and greatly reduces the impact on the detection efficiency of the engine cover;

[0028] 2. In the process of the pressure detection module rotating from the vertical downward state to the vertical upward state, the S-type pressure sensor and the bearing seat can be automatically disconnected until the verification is completed. If there is no fault in the verification, the pressure detection module is directly driven to reset. During the resetting process, the connection between the S-type pressure sensor and the bearing seat is automatically completed. When the S-type pressure sensor is found to be faulty during the verification, the pressure detection module is driven to rotate a certain angle in the resetting direction, so that the S-type pressure sensor is in a tilted state, and the S-type pressure sensor is in a state of disconnection from the bearing seat. The operator directly removes the S-type pressure sensor and replaces it with a new one, and then continues to rotate the pressure detection module until it is reset to continue the inspection work. Compared with the traditional connection between the S-type pressure sensor and the detection equipment through bolts, the disassembly and assembly efficiency of the S-type pressure sensor is improved, the manual disassembly and assembly steps are reduced, and it is more conducive to inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the position of the rotating shaft of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0032] Figure 4 It is a schematic diagram of the limit strip of the present invention;

[0033] Figure 5 For the present invention Figure 4 A magnified image of point A;

[0034] Figure 6 It is a schematic diagram of the structure of the S-type pressure sensor of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the inner support fixing assembly of the present invention;

[0036] Figure 8 For the present invention Figure 7 A magnified view of point B;

[0037] Fig. 9 It is a schematic diagram of the shape of the support bar of the present invention;

[0038] Fig.10 It is a schematic diagram of the position of the inner support fixing assembly of the present invention;

[0039] Fig.11 It is a schematic diagram of the position of the drive ring of the present invention;

[0040] Fig.12 It is a schematic diagram of the S-shaped pressure sensor and the bearing seat being unlocked according to the present invention;

[0041] Fig.13 For the present invention Fig.12 Enlarged view of point C;

[0042] Fig.14 It is a schematic diagram of the contact between the abutting ball and the counterweight verification block of the present invention;

[0043] Fig.15 It is a schematic diagram of the present invention's counterweight calibration block lifted by the tightening ball;

[0044] Fig.16 For the present invention Fig.15 The enlarged view of point D;

[0045] Fig.17 This is a schematic diagram of Embodiment 2 of the present invention.

[0046] Numbers in the figure: 1. vertical frame; 2. X-axis moving module; 3. Y-axis moving module; 4. Z-axis moving module; 5. connecting frame; 6. rotating shaft; 7. bearing seat; 8. rotating assembly; 81. motor; 82. worm; 83. worm wheel; 9. inner support fixing assembly; 91. support bar; 92. tightening plate; 93. first flip bar; 94. second flip bar; 95. sliding sleeve; 10. synchronous driving assembly; 1001. pushing slide bar; 1002. roller; 1003. horizontal plate; 1004. driving ring; 1005. recessed groove; 1006. spring; 11. S-type pressure sensor; 1101. threaded hole; 12. detection tightening rod; 1201. external thread; 13. tightening ball; 14. counterweight calibration block; 15. limit bar; 16. rubber sheet; 17. cover. DETAILED DESCRIPTION

[0047] 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.

[0048] See also Figures 1 to 16 The embodiment of the present invention provides a technical solution: a pressure resistance detection device for the production of engine cover plates, comprising a three-axis mobile platform, a connecting component and a verification component. The three-axis mobile platform is used to drive the detection section to move to detect different positions of the engine cover plate. The three-axis mobile platform specifically comprises two symmetrically arranged vertical frames 1, an X-axis mobile module 2 symmetrically fixed on the support of the two vertical frames 1, a Y-axis mobile module 3 fixed on the moving ends of the two X-axis mobile modules 2, and a Z-axis mobile module 4 fixed on the moving end of the Y-axis mobile module 3; the connecting component is fixed on the moving end of the Z-axis mobile module 4, and a pressure detection module is installed on the connecting component. The connecting component enables the pressure detection module to have two states of vertical upward and vertical downward on the moving end of the three-axis mobile platform; the verification component is installed on the connecting component, and the verification component is located above the pressure detection module. When the pressure detection module is in a vertical upward state on the connecting component, the verification component verifies the pressure detection module.

[0049] When inspecting the engine cover, ensure that the entire equipment is in a horizontal state, and use the conveying equipment to convey the engine cover to be tested between the two vertical frames 1, and drive the pressure detection module to move to the top of the engine cover to be tested through the cooperation of the X-axis moving module 2 and the Y-axis moving module 3, then the X-axis moving module 2 and the Y-axis moving module 3 stop working, and the Z-axis moving module 4 intervenes, so that the pressure detection module descends and presses on the outside of the engine cover, and as the Z-axis moving module 4 drives the pressure detection module to continuously descend, the pressure resistance performance of the engine cover is tested;

[0050] When the pressure detection module is in a new state, the connecting assembly works to make the pressure detection module flip upward and switch to a vertically upward state. When the pressure detection module is completely in the vertically upward state, the calibration piece presses on the pressure detection module and records the value a1 detected by the pressure detection module in this state.

[0051] In the subsequent detection process, when the calibration cycle is reached, the pressure detection module is driven to flip upward to a vertically upward state again, and the calibration piece is pressed on the pressure detection module again. The value a2 detected by the pressure detection module in this state is recorded and compared with the value a1, thereby achieving the effect of calibrating the pressure detection module. There is no need for manual calibration, the calibration is more efficient, more manpower is saved, and the impact on the detection work of the engine cover is greatly reduced.

[0052] The connecting component includes a connecting frame 5 fixed on the moving end of the Z-axis moving module 4, the lower end of the connecting frame 5 is rotatably connected with a rotating shaft 6, a bearing seat 7 is fixed on the middle outer wall of the rotating shaft 6, the pressure detection module is plugged into the inner side of the bearing seat 7, a rotating component 8 for driving the rotating shaft 6 to rotate is fixed on the outer wall of the connecting frame 5, an inner support fixing component 9 connecting the pressure detection module and the bearing seat 7 is fixed on the inner side of the bearing seat 7, a synchronous driving component 10 for driving the inner support fixing component 9 to work is fixed on the connecting frame 5, and the synchronous driving component 10 is mechanically linked with the bearing seat 7;

[0053] The pressure detection module is plugged into the inner side of the bearing seat 7, and the synchronous driving component 10 drives the inner support fixing component 9 to work to position the pressure detection module inside the bearing seat 7. When it is necessary to switch the vertical upward and vertical downward states of the pressure detection module, the rotating shaft 6 can be driven to rotate by driving the rotating component 8;

[0054] The pressure detection module includes an S-type pressure sensor 11, and a threaded hole 1101 is formed in the middle of the top surface and the middle of the bottom surface of the S-type pressure sensor 11. One end of the S-type pressure sensor 11 is plugged into the inner side of the bearing seat 7. The end of the S-type pressure sensor 11 away from the bearing seat 7 is provided with a detection clamping rod 12, and the detection clamping rod 12 is threadedly connected with the threaded hole 1101 through an external thread 1201. A clamping ball 13 is fixed to the end of the detection clamping rod 12 away from the S-type pressure sensor 11. The inner support fixing component 9 is sleeved in the threaded hole 1101 on the side of the S-type pressure sensor 11 close to the bearing seat 7. On the other hand, the specific structure of the S-type pressure sensor 11 is all existing technology. In the existing technology, in order to realize the connection between the S-type pressure sensor 11 and the test equipment and the connection between the pressure-applying component and the S pressure sensor, threaded holes 1101 are provided in the middle of the top and bottom surfaces of the S-type pressure sensor 11, and then the S-type pressure sensor 11 is fixed to the test equipment by screwing bolts into the threaded holes 1101, and the connection between the pressure-applying component and the S-type pressure sensor 11 is completed through the threaded holes 1101. This is an existing mature technology. In this application, the pressure-applying component is the detection clamping rod 12 and the clamping ball 13;

[0055] When the S-type pressure sensor 11 is inserted into the inner side of the bearing seat 7, the inner support fixing assembly 9 is sleeved in a threaded hole 1101, and then the inner support fixing assembly 9 is pressed against the inner wall of the threaded hole 1101, thus completing the connection and fixing work between the S-type pressure sensor 11 and the bearing seat 7;

[0056] The rotating assembly 8 includes a motor 81 fixed on the outer wall of the connecting frame 5, a worm 82 is fixed on the output end of the motor 81, the worm 82 is rotatably connected to the outer wall of the connecting frame 5, a worm wheel 83 is fixed on the end of the rotating shaft 6 close to the motor 81, the worm wheel 83 is meshingly connected to the worm 82, and the rotating assembly 8 works by driving the motor 81 to rotate, thereby driving the worm 82 to rotate, and turning the worm wheel 83 to rotate the rotating shaft 6, thereby achieving the effect of driving the pressure detection module to rotate.

[0057] The inner support fixing assembly 9 includes a support bar 91 fixed to the middle position of the inner wall of the bearing seat 7, and a tightening piece 92 is symmetrically arranged on the outer wall of the support bar 91. One end of the tightening piece 92 close to the support bar 91 is rotatably connected to two first flip bars 93 through an axle pin, and one end of the first flip bar 93 away from the tightening piece 92 is rotatably connected to the outer wall of the support bar 91 through an axle pin. The side of the tightening piece 92 close to the first flip bar 93 is also rotatably connected to a second flip bar 94 through an axle pin, and the ends of the two second flip bars 94 away from the tightening piece 92 are rotatably connected to a sliding sleeve 95 through an axle pin. The sliding sleeve 95 The sliding sleeve is arranged on the outer wall of the support bar 91. After the S-type pressure sensor 11 is inserted into the bearing seat 7 and is in place, the sliding sleeve 95 is pushed to slide on the support bar 91, and the second flip bar 94 is pushed to flip and open by the sliding sleeve 95, so that it can cooperate with the first flip bar 93 to push the clamping sheet 92 to expand to the side away from the support bar 91. A rubber sheet 16 is fixed on the outer wall of the side of the clamping sheet 92 away from the first flip bar 93 until the rubber sheet 16 is pressed against the inner wall of the threaded hole 1101 on the S-type pressure sensor 11, so that the S-type pressure sensor 11 is connected and positioned on the inner side of the bearing seat 7.

[0058] The synchronous drive assembly 10 includes a push slide rod 1001 symmetrically fixed on the outer wall of the sliding sleeve 95, and the two push slide rods 1001 are slidably connected to the bearing seat 7 through the first sliding hole. The ends of the two push slide rods 1001 away from the S-shaped pressure sensor 11 pass through the bearing seat 7 and extend to the outside of the bearing seat 7 and are rotatably connected to the roller 1002. A horizontal plate 1003 is fixed on the outer wall of the lower end of the connecting frame 5, and a driving ring 1004 is fixed on the side of the horizontal plate 1003 close to the rotating shaft 6. The driving ring 1004 of the rotating shaft 6 The axis of 1004 coincides with the axis of the rotating shaft 6, and the rotating shaft 6 passes through the middle of the driving ring 1004. A recessed groove 1005 is provided on the outer wall of the driving ring 1004, and the recessed groove 1005 is located on the top outer periphery of the driving ring 1004. The roller 1002 is pressed against the outer wall of the driving ring 1004. A spring 1006 is fixed on the outer wall of the push slide bar 1001 close to the roller 1002, and one end of the spring 1006 away from the push slide bar 1001 is fixed to the outer wall of the bearing seat 7;

[0059] The pressure detection module is as follows Figure 2 The vertical downward state shown in FIG. 2 is the state for performing the detection work. When the calibration cycle is reached, the rotating assembly 8 drives the pressure detection module to rotate from the vertical downward state shown in FIG. 2 to the vertical downward state shown in FIG. Fig.15 In the vertically upward state shown in the figure, the pressure detection module is turned 180 degrees around the axis of the rotating shaft 6 during the whole process, that is, the worm gear 83 rotates 180 degrees. During the rotation process, the roller 1002 rolls on the outer wall of the driving ring 1004 until the pressure detection module is turned 145 degrees to the position shown in the figure. Fig.12In the position shown, under the action of the rebound force of the spring 1006, the roller 1002 is pressed against the inner wall of the concave groove 1005. In the process of the roller 1002 reaching the inner wall of the concave groove 1005 from the outermost end of the driving ring 1004, the spring 1006 drives the push rod 1001 to slide, pulls the sliding sleeve 95, and cooperates with the first flip bar 93 and the second flip bar 94 to make the pressing piece 92 away from the inner wall of the threaded hole 1101, so that the inner support fixing assembly 9 is released from pressing against the inner wall of the threaded hole 1101, and the connection between the S-shaped pressure sensor 11 and the bearing seat 7 is released;

[0060] The verification member includes a weight verification block 14 which is slidably mounted on the outer wall of the upper end of the connecting frame 5 through a second sliding hole. The bottom surface of the middle part of the weight verification block 14 is hemispherical. A limit strip 15 is symmetrically fixed on the upper end of the connecting frame 5. The limit strip 15 cooperates with the weight verification block 14.

[0061] The pressure detection module is turned 145 degrees, and then continues to rotate until it rotates 180 degrees. Fig.15 In the vertically upward state shown in the figure, in the final 35-degree rotation of the 180-degree rotation process, the inner support fixing assembly 9 is released from the state of being pressed against the inner wall of the threaded hole 1101, but the S-type pressure sensor 11 is plugged into the inner side of the bearing seat 7, and the S-type pressure sensor 11 can still stably rotate with the bearing seat 7 until it rotates to the position shown in the figure. Fig.14 In the state shown, the bottom surface of the counterweight verification block 14 contacts the top surface of the limit bar 15, and the abutting ball 13 just contacts the hemispherical position of the bottom surface of the counterweight verification block 14. Then the pressure detection module continues to rotate until it is in a vertical upward state, pushing the counterweight verification block 14 to slide upward and separate from the limit bar 15. Then the counterweight verification block 14 is pressed on the outer wall of the abutting ball 13. The value a2 detected by the S-type pressure sensor 11 in this state is recorded and compared with the value a1, thereby achieving the effect of verifying the pressure detection module;

[0062] After the calibration is completed, if the S-type pressure sensor 11 is found to have an error, the rotating assembly 8 is driven to work, driving the pressure detection module to rotate 35 degrees in the opposite direction to the previous rotation direction. Fig.12In the state shown, the counterweight check block 14 loses the push of the clamping ball 13 and slides downward under the action of gravity and rests on the limit strip 15 again, then the S-type pressure sensor 11 is pulled out from the bearing seat 7, and the detection clamping rod 12 is rotated to make the detection clamping rod 12 screwed out from the threaded hole 1101, and the detection clamping rod 12 is installed on the new S-type pressure sensor 11, and then the new S-type pressure sensor 11 is inserted into the inner side of the bearing seat 7 again, and then the rotating assembly 8 works, driving the pressure detection module to continue to flip to the vertical downward state. During this process, the roller 1002 gradually reaches the outer wall of the outermost periphery of the driving ring 1004, so that the push slide rod 1001 pushes the sliding sleeve 95 to slide, so that the clamping sheet 92 again presses the rubber sheet 16 against the inner wall of the threaded hole 1101, and the new S-type pressure sensor 11 is connected to the bearing seat 7 until the pressure detection module is rotated to the vertical downward state, and the detection work of the engine cover is continued;

[0063] It should be further explained that the length of the support bar 91 is smaller than the distance between the outer wall of the open side of the support seat 7 and the inner wall of the side of the support seat 7 close to the rotating shaft 6. Therefore, after one end of the S-type pressure sensor 11 has been inserted into the inner side of the support seat 7, the inner support fixing assembly 9 can enter the inner side of the threaded hole 1101 on the S-type pressure sensor 11.

[0064] For example 2, please refer to Fig.17 Based on the first embodiment, a further technical solution is provided. A cover 17 is fixed on the outer wall of the connecting frame 5 close to the motor 81. The motor 81, the worm gear 83 and the worm 82 are all located on the inner side of the cover 17 to protect the motor 81, the worm gear 83 and the worm 82.

[0065] In summary, compared with the prior art, the pressure resistance testing device provided by the present invention for the production of engine cover plates can achieve the effect of automatically calibrating the S-type pressure sensor 11, the main component used for pressure resistance testing, without manual operation for calibration, especially without frequent manual disassembly and assembly of the S-type pressure sensor 11 for calibration, which greatly saves manpower and improves the efficiency of calibration. It can reduce the downtime of the entire detection equipment due to calibration, and reduce the impact on the inspection efficiency of the engine cover. Moreover, for the connection work of the S-type pressure sensor 11, compared with the traditional connection using screws, the manual operation steps of disassembly and assembly of the S-type pressure sensor 11 are also reduced, and disassembly and assembly are more convenient, which is more conducive to the maintenance of the S-type pressure sensor 11.

[0066] Embodiment 3, based on embodiment 1, this embodiment provides a method for testing the pressure resistance of engine cover production, using a device for testing the pressure resistance of engine cover production, specifically comprising the following steps:

[0067] A1. The engine cover to be tested is transported to the bottom of the three-axis mobile platform through the conveying equipment;

[0068] A2. The three-axis mobile platform drives the pressure detection module in the vertical downward state to move to the test position, and then drives the pressure detection module to descend to perform a pressure test on the engine cover;

[0069] A3. After a certain period of use, the connection component drives the pressure detection module to switch to a vertical upward state and calibrates the pressure detection module through a calibration piece.

[0070] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0071] 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.

[0072] 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 compression testing device for engine cover production, characterized in that: include: Three-axis mobile platform; A connecting component is fixed on the moving end of the three-axis mobile platform, and a pressure detection module is installed on the connecting component. The connecting component enables the pressure detection module to have two states on the moving end of the three-axis mobile platform: vertically facing upward and vertically facing downward; A verification piece is installed on the connection assembly and is located above the pressure detection module. When the pressure detection module is in a vertically upward state on the connection assembly, the verification piece verifies the pressure detection module; The connection assembly comprises a connection frame (5) fixed on the moving end of the three-axis mobile platform, the lower end of the connection frame (5) is rotatably connected to a rotating shaft (6), a bearing seat (7) is fixed on the middle outer wall of the rotating shaft (6), the pressure detection module is plugged into the inner side of the bearing seat (7), a rotating assembly (8) for driving the rotating shaft (6) to rotate is fixed on the outer wall of the connection frame (5), an inner support fixing assembly (9) connecting the pressure detection module and the bearing seat (7) is fixed on the inner side of the bearing seat (7), a synchronous driving assembly (10) for driving the inner support fixing assembly (9) to work is fixed on the connection frame (5), and the synchronous driving assembly (10) is mechanically linked with the bearing seat (7); The pressure detection module comprises an S-shaped pressure sensor (11), a threaded hole (1101) is formed in the middle of the top surface and the middle of the bottom surface of the S-shaped pressure sensor (11), one end of the S-shaped pressure sensor (11) is plugged into the inner side of the bearing seat (7), a detection clamping rod (12) is provided at the end of the S-shaped pressure sensor (11) away from the bearing seat (7), the detection clamping rod (12) is threadedly connected to the threaded hole (1101) via an external thread (1201), a clamping ball (13) is fixed at the end of the detection clamping rod (12) away from the S-shaped pressure sensor (11), and the inner support fixing assembly (9) is sleeved on the inner side of the threaded hole (1101) on the side of the S-shaped pressure sensor (11) close to the bearing seat (7); The inner support fixing assembly (9) comprises a support bar (91) fixed at a middle position of the inner wall of the bearing seat (7), a tightening sheet (92) is symmetrically arranged on the outer wall of the support bar (91), one end of the tightening sheet (92) close to the support bar (91) is rotatably connected to two first flip bars (93) through an axle pin, one end of the first flip bar (93) away from the tightening sheet (92) is rotatably connected to the outer wall of the support bar (91) through an axle pin, and the side of the tightening sheet (92) close to the first flip bar (93) is also rotatably connected to a second flip bar (94) through an axle pin, and one end of the two second flip bars (94) away from the tightening sheet (92) is rotatably connected to a sliding sleeve (95) through an axle pin, and the sliding sleeve (95) is slidably sleeved on the outer wall of the support bar (91); The synchronous drive assembly (10) comprises a push slide rod (1001) symmetrically fixed on the outer wall of the sliding sleeve (95), and the two push slide rods (1001) are both slidably connected to the bearing seat (7) through the first sliding hole, and the ends of the two push slide rods (1001) away from the S-shaped pressure sensor (11) pass through the bearing seat (7) and extend to the outside of the bearing seat (7) and are rotatably connected to the roller (1002), and a horizontal plate (1003) is fixed on the outer wall of the lower end of the connecting frame (5), and a driving plate (1003) is fixed on the side of the horizontal plate (1003) close to the rotating shaft (6). The driving ring (1004) has an axis that coincides with the axis of the rotating shaft (6), and the rotating shaft (6) passes through the middle of the driving ring (1004). A recessed groove (1005) is provided on the outer wall of the driving ring (1004). The roller (1002) is pressed against the outer wall of the driving ring (1004). A spring (1006) is fixed on the outer wall of the pushing slide bar (1001) on the side close to the roller (1002). The end of the spring (1006) that is away from the pushing slide bar (1001) is fixed to the outer wall of the bearing seat (7).

2. The compression testing device for engine cover production according to claim 1 is characterized in that: The rotating assembly (8) comprises a motor (81) fixed on the outer wall of the connecting frame (5); a worm (82) is fixed on the output end of the motor (81); the worm (82) is rotatably connected to the outer wall of the connecting frame (5); a worm wheel (83) is fixed on one end of the rotating shaft (6) close to the motor (81); the worm wheel (83) is meshingly connected to the worm (82).

3. The compression testing device for engine cover production according to claim 1 is characterized in that: The verification component comprises a counterweight verification block (14) which is slidably mounted on the outer wall of the upper end of the connecting frame (5) through a second sliding hole, the bottom surface of the middle part of the counterweight verification block (14) being arranged in a hemispherical shape, and a limit strip (15) is symmetrically fixed to the upper end of the connecting frame (5), the limit strip (15) being matched with the counterweight verification block (14).

4. The compression testing device for engine cover production according to claim 1 is characterized in that: A rubber sheet (16) is fixed on the outer wall of the pressing sheet (92) on a side away from the first turning strip (93).

5. The compression testing device for engine cover production according to claim 2, characterized in that: A cover (17) is fixed to the outer wall of the connecting frame (5) on the side close to the motor (81), and the motor (81), the worm wheel (83) and the worm (82) are all located on the inner side of the cover (17).

6. A compression testing method for engine cover production, characterized in that: The compression testing device for engine cover production according to any one of claims 1 to 5 specifically comprises the following steps: A1. The engine cover to be tested is transported to the bottom of the three-axis mobile platform through the conveying equipment; A2. The three-axis mobile platform drives the pressure detection module in the vertical downward state to move to the test position, and then drives the pressure detection module to descend to perform a pressure test on the engine cover; A3. After a certain period of use, the connection component drives the pressure detection module to switch to a vertical upward state and calibrates the pressure detection module through a calibration piece.

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