A high-strength aluminum alloy reducer housing hardness testing device

Abstract

The present invention provides a high-strength aluminum alloy material reducer housing hardness testing device, which specifically relates to the technical field of hardness testing, including a main support plate, a moving device, and a testing pressure head. The bottom upper surface of the main support plate is fixedly connected to a fixed disk, and a servo motor is fixedly installed on the bottom upper surface of the fixed disk. Two ends of the two triangular plates close to the disc clamp are respectively fixedly installed with hydraulic cylinders, and the telescopic ends of the hydraulic cylinders are fixedly connected to a pressure plate, and the top of the pressure plate close to the hydraulic cylinder is fixedly connected to an L fixed plate. By simultaneously applying opposite pressures on both sides of the reducer housing, the hardness of the reducer housing under continuous pressure is simulated, which is beneficial to analyzing the overall comprehensive hardness data of the reducer housing. Compared with the existing method of using point contact to test hardness, this method provides surface contact extrusion force to assist testers in judging whether the hardness of the reducer housing meets the standard.

Description

Technical Field

[0001] The invention provides a device for testing the hardness of a reducer housing made of a high-strength aluminum alloy material, and particularly relates to the technical field of hardness detection. Background Art

[0002] The hardness of the reducer housing determines the stability and safety of the reducer operation. The existing technology for housing hardness testing generally uses a hardness tester for testing. During the test, the hydraulic system drives the test head to apply pressure to the housing, and then the hardness data of the reducer housing is sent to the computer equipment for data analysis through sensors and other components.

[0003] Authorization announcement No. CN219245269U discloses a gearbox housing hardness detector, which can move the movable frame left and right through the use of an electric slide rail and a slider, so as to facilitate the horizontal movement of the gearbox housing. Starting the motor can rotate the disc clamp, and the use of the rotating shaft and the card slot can drive the gearbox housing to rotate, so that different surfaces of the gearbox housing can be easily contacted with the hardness detection sensor, so that the device does not need to manually adjust the placement of the housing when checking different positions of the housing.

[0004] Although the above detector has the effect of testing the hardness of the gearbox housing, it still has the following shortcomings when used for testing the hardness of the reducer housing:

[0005] When the above-mentioned detector performs hardness testing on the gearbox housing or the reducer housing, it only uses the detection head to perform multiple hardness tests on one point on the housing. During actual use, the outer surface of the reducer housing will inevitably be subjected to extrusion pressure. For example, in a factory workshop, a heavy object may accidentally fall on the reducer housing, or during transportation, the reducer may be squeezed by other goods, which will produce extrusion pressure on the reducer housing. However, the above-mentioned detector lacks simulation of whether the housing is dented due to extrusion during actual application. When the reducer housing is squeezed and deformed, the internal space of the reducer housing will become smaller, directly compressing the internal gears, shafts, bearings and other parts to cause damage to the reducer. Therefore, it is necessary to perform an extrusion test on the reducer housing.

[0006] Therefore, the present invention proposes a high-strength aluminum alloy material reducer housing hardness testing device to make up for and improve the deficiencies of the prior art. Summary of the invention

[0007] In view of the defects existing in the prior art, the present invention provides a high-strength aluminum alloy reducer housing hardness testing device, which can effectively solve the relevant technical problems raised by the background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention discloses a high-strength aluminum alloy material reducer housing hardness testing device, comprising a main support plate, a moving device, and a detection pressure head, wherein a fixed disk is fixedly connected to the upper surface of the bottom of the main support plate, a servo motor is fixedly installed on the upper surface of the bottom of the fixed disk, a disc clamp is rotatably connected to the top of the fixed disk, pressure simulation detection mechanisms are symmetrically arranged on both sides of the main support plate, and a protective self-cleaning treatment mechanism is arranged below the detection pressure head;

[0010] The pressure simulation detection mechanism includes triangular plates symmetrically fixedly connected to both sides of the main support plate, and the two triangular plates are respectively fixedly installed with hydraulic cylinders at one end close to the disc clamp, and the telescopic end of the hydraulic cylinder is fixedly connected with a pressure plate, and the top of the pressure plate close to the hydraulic cylinder is fixedly connected with an L fixed plate, and an alarm is fixedly installed on the surface of the L fixed plate close to the hydraulic cylinder, and a control switch is fixedly installed on the surface of the L fixed plate away from the hydraulic cylinder. The surface of the L fixed plate away from the hydraulic cylinder is also fixedly connected with a force spring, and the end of the force spring away from the L fixed plate is fixedly connected with a coplanar plate.

[0011] Preferably, a surface of the coplanar plate away from the force spring is flush with a surface of the pressure plate away from the hydraulic cylinder.

[0012] Preferably, the control switch is located on the horizontal movement path of the protruding rod on the surface of one side of the common panel.

[0013] Preferably, the protective self-cleaning processing mechanism includes a toothed power rod, an outer wall of one of the two pressure plates on one side of which is fixedly connected to the toothed power rod, the surface of the main support plate close to the toothed power rod is rotatably connected to a power gear, and the power gear is located on the path of horizontal movement of the toothed power rod, and the surface of the power gear away from the main support plate is coaxially fixedly connected to a winding wheel, a force rope is wound around the outer ring surface of the winding wheel, and one end of the force rope away from the winding wheel is fixedly connected to a rotating disk, and a spring plate is provided on the side of the rotating disk close to the main support plate, and the spring plate is composed of a plate body and a vertical spring fixedly connected to the plate body, and a grooved shaft is rotatably connected to the upper surface of the rotating disk, a spiral groove is provided on the outer ring surface of the grooved shaft, and the outer sleeve of the grooved shaft is provided with The belt plate fixed ring is composed of a circular ring sleeved on the outside of the grooved shaft and a flat plate fixedly connected to the outer ring surface of the circular ring, a protrusion is arranged on the inner ring surface of the circular ring, and the protrusion is slidably connected to the spiral groove on the outer ring surface of the grooved shaft, a T-slot block is fixedly connected to the top surface of the grooved shaft, an external box is arranged above the grooved shaft, a slotted plate is symmetrically fixedly connected to the surface of the main support plate close to the external box, the external box is slidably connected to the slotted plate, a through hole is opened at a position corresponding to the detection pressure head on the top of the external box, an internal bottom surface of the external box is fitted with an internal bottom plate, a plurality of insert tubes are evenly rotatably connected to the upper surface of the internal bottom plate, an adapter block is fixedly connected to the bottom of the insert tube, the adapter block slidably cooperates with the T-slot block, and cotton tubes are respectively inserted into the inside of the insert tube.

[0014] Preferably, the protrusion is hemispherical, and the outer surface of the protrusion and the groove surface of the spiral groove are both configured as smooth surfaces.

[0015] Preferably, after the toothed power rod drives the power gear and the winding wheel to rotate, the belt groove axis can be moved downward through the force rope.

[0016] Preferably, the positions of the T-slot block and the adapter block correspond to each other, and the T-slot block is located on a path of horizontal movement of the adapter block.

[0017] Preferably, the lower end of the adapter block extends to below the bottom of the external box, the upper end of the adapter block is cylindrical, and the lower end is T-shaped.

[0018] Preferably, the protective self-cleaning treatment mechanism also includes a paddle fixedly connected to the outer wall of one side of the built-in bottom plate, a through flat groove is opened at the position of the external box corresponding to the paddle plate, the paddle plate is slidably connected to the through flat groove, the paddle plate extends to the outside of the external box through the through flat groove, and the top surface extending to the external part is fixedly connected with a magnetic plate, and the outer wall of the external box close to the paddle plate is evenly fixedly connected with a plurality of magnetic blocks, the positions of the magnetic blocks correspond to the positions of the insert tube and the cotton tube, and the magnetic properties of the magnetic plate and the magnetic blocks on the sides close to each other are opposite.

[0019] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] The reducer housing hardness testing device is used to simulate the hardness of the reducer housing under continuous pressure by applying opposite pressures on both sides of the reducer housing at the same time. Compared with the existing method of testing hardness by point contact, the present invention can simultaneously perform two testing methods of point contact and extrusion of the housing, and can simulate the changes of the reducer housing when it is squeezed in actual use, and more truly reflect the performance and changes of the reducer housing under stress, so as to more effectively know the hardness performance of the reducer housing;

[0021] At the same time, through the cooperation of the indicator plate and the pressure spring, when the reducer housing is compressed and deformed, the sound and light prompt function of the alarm can provide sound and light prompt feedback to the tester, so that the tester can observe the physical changes of the reducer housing after being compressed in time, and can also assist the tester in judging the maximum pressure tolerance range on both sides of the reducer housing;

[0022] After the hardness simulation test on two sides of the reducer housing, the reducer housing can be rotated 90 degrees by the servo motor, and then the pressure simulation test is performed on the other two sides to achieve pressure testing on different sides of the reducer housing. At the same time, the reducer housing rotated 90 degrees can ensure the stability of the reducer housing during testing under the clamping force provided by the disc clamp and the opposite pressure provided by the two hydraulic cylinders;

[0023] The grooved shaft can rotate while moving vertically downward, so that the cotton cylinder is pressed against the outer wall below the detection pressure head for wiping treatment, so as to remove impurities attached to the outer wall of the detection pressure head during the previous test, or impurities that are not manually cleaned on the outer wall below the detection pressure head, thereby ensuring that the outer wall below the detection pressure head can always be in a relatively clean state during the hardness test of the detection pressure head, so as to ensure the accuracy of the hardness test data of the detection pressure head;

[0024] After each hardness test of the detection indenter, the cotton tube and the external box can be automatically put back on the lower outer wall of the detection indenter, thereby automatically forming a protection for the lower outer wall of the detection indenter to prevent the detection indenter from being affected by dust or impurities in the external environment when not in use, thereby increasing the service life of the detection indenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a main perspective structural diagram of the present invention;

[0026] Figure 2It is a three-dimensional structural diagram of the relevant components in a partially cut-away state of the top of the main support plate of the present invention;

[0027] Figure 3 It is a partial structural diagram of the relevant components of the servo motor of the present invention;

[0028] Figure 4 For the present invention Figure 1 A partial enlarged three-dimensional structure diagram at center;

[0029] Figure 5 It is a partial three-dimensional structural diagram of the relevant components of the hydraulic cylinder of the present invention;

[0030] Figure 6 It is a partial cross-sectional structural diagram of the pressure plate of the present invention;

[0031] Figure 7 For the present invention Figure 2 The local enlarged three-dimensional structure diagram at B in the middle;

[0032] Figure 8 It is a partial three-dimensional structural diagram of the power gear and the outer box of the present invention;

[0033] Fig. 9 It is a three-dimensional structural diagram of the relevant parts of the present invention when the plate fixed ring and the grooved shaft are separated;

[0034] Fig.10 It is a partial three-dimensional structural diagram of the T block and related components of the external box of the present invention.

[0035] The numbers in the figure represent:

[0036] 1. Main support plate; 11. Fixed plate; 12. Servo motor; 13. Disc fixture; 14. Moving device; 15. Detection pressure head;

[0037] Pressure simulation detection mechanism: 21, triangular plate; 22, hydraulic cylinder; 23, pressure plate; 24, L fixing plate; 25, alarm; 26, force spring; 27, common plate; 28, control switch;

[0038] Protective self-cleaning treatment mechanism: 31. Toothed power rod; 32. Power gear; 33. Winding wheel; 34. Force rope; 35. Rotary disc; 3501. Spring plate; 36. Plate fixed ring; 37. Grooved shaft; 38. T-slot block; 39. Adapter block; 310. Insert cylinder; 311. Cotton cylinder; 312. Built-in bottom plate; 313. External box; 3131. Slotted plate; 314. Paddle plate; 315. Magnetic plate; 316. Magnetic block. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the embodiments.

[0040] Embodiments of the present invention

[0041] refer to Figures 1 to 10 As shown, a high-strength aluminum alloy material reducer housing hardness testing device includes a main support plate 1, a moving device 14, and a detection pressure head 15. The moving device 14 is used to drive the detection pressure head 15 to perform hardness testing at different positions. Specifically, the moving device 14 is composed of two vertically distributed electric slide rails, and the electric slide rails are respectively slidably connected with electric control sliders, such as Figure 2 As shown, the top of the detection pressure head 15 is slidably connected to a longitudinal electric slide through an electric slide, which is used to achieve the longitudinal horizontal displacement of the detection pressure head 15, and the longitudinal electric slide is slidably connected to another transverse electric slide through another electric slide, which is used to drive the longitudinal electric control slide and the corresponding electric slide, as well as the detection pressure head 15 to perform transverse horizontal displacement. The detection pressure head 15 is used to apply pressure downward to perform hardness testing. The moving device 14 and the detection pressure head 15 are both prior art, and their specific structures and principles are not described in detail; in addition, as Figure 2 As shown, the detection pressure head 15 at this position is the initial origin position.

[0042] The upper surface of the bottom of the main support plate 1 is fixedly connected to a fixing plate 11, Figure 3 As shown, a servo motor 12 is fixedly mounted on the bottom upper surface of the fixed disk 11, and a disc clamp 13 is rotatably connected to the top of the fixed disk 11. The bottom center of the disc clamp 13 is coaxially fixed with the output shaft of the servo motor 12. The disc clamp 13 is used to clamp the reducer housing under test.

[0043] As an improvement, pressure simulation detection mechanisms are symmetrically arranged on both sides of the main support plate 1, and a protective self-cleaning treatment mechanism is arranged below the detection pressure head 15;

[0044] The pressure simulation detection mechanism includes triangular plates 21 symmetrically fixedly connected to both sides of the main support plate 1, and hydraulic cylinders 22 are fixedly installed at one end of the two triangular plates 21 close to the disc clamp 13, and a pressure plate 23 is fixedly connected to the telescopic end of the hydraulic cylinder 22, and an L fixed plate 24 is fixedly connected to the top of the pressure plate 23 close to the hydraulic cylinder 22. An alarm 25 is fixedly installed on the surface of the L fixed plate 24 close to the hydraulic cylinder 22, and a control switch 28 is fixedly installed on the surface of the L fixed plate 24 away from the hydraulic cylinder 22. The alarm 25 is an audible and visual alarm, which is turned on by the control switch 28. A force spring 26 is also fixedly connected to the surface of the L fixed plate 24 away from the hydraulic cylinder 22, and the end of the force spring 26 away from the L fixed plate 24 is fixedly connected to a common plate 27, and a protruding rod is provided on the surface of the common plate 27 facing the control switch 28.

[0045] Furthermore, the surface of the coplanar plate 27 away from the force spring 26 and the surface of the pressure plate 23 away from the hydraulic cylinder 22 are flush with each other.

[0046] Furthermore, the control switch 28 is located on the horizontal movement path of the protruding rod on one side surface of the common plate 27 .

[0047] The protective self-cleaning treatment mechanism includes a toothed power rod 31, wherein the outer wall of one side of a pressure plate 23 is fixedly connected to the toothed power rod 31, and the surface of the main support plate 1 close to the toothed power rod 31 is rotatably connected to a power gear 32, and the power gear 32 is located on the horizontal movement path of the toothed power rod 31, and the surface of the power gear 32 away from the main support plate 1 is coaxially fixedly connected to a winding wheel 33, and a force rope 34 is wound around the outer annular surface of the winding wheel 33, and the end of the force rope 34 away from the winding wheel 33 is fixedly connected to a rotary disk 35, and a spring plate 3501 is arranged on the side of the rotary disk 35 close to the main support plate 1, and the spring plate 3501 is composed of a plate body and a vertical spring fixedly connected to the plate body, refer to Figure 7 As shown, the plate body is fixedly connected to the outer wall of the main support plate 1, the upper end of the vertical spring is fixedly connected to the outer wall of the rotating disk 35 close to the main support plate 1, and the upper surface of the rotating disk 35 is rotatably connected to a grooved shaft 37, the outer ring surface of the grooved shaft 37 is provided with a spiral groove, and the outer surface of the grooved shaft 37 is provided with a plate fixed ring 36, refer to Figure 7 and Fig. 9 As shown, the plate fixed ring 36 is composed of a circular ring sleeved on the outside of the grooved shaft 37, and a flat plate fixedly connected to the outer ring surface of the circular ring. A protrusion is arranged on the inner ring surface of the circular ring, and the protrusion is slidably connected to the spiral groove on the outer ring surface of the grooved shaft 37. A T-slot block 38 is fixedly connected to the top surface of the grooved shaft 37, and an external box 313 is arranged above the grooved shaft 37. For details, refer to Figure 2 and Figure 7 As shown, the surface of the main support plate 1 close to the external box 313 is symmetrically fixedly connected with a slotted plate 3131, and the external box 313 is slidably connected to the slotted plate 3131. Figure 7 and Figure 8 As shown, the external box 313 is made of transparent and visible acrylic material as a whole, and the external box 313 is composed of two box bodies, and the two box bodies are plugged together. A through hole is opened at the top of the external box 313 corresponding to the detection pressure head 15, which is used to plug and cooperate with the bottom of the detection pressure head 15. The bottom surface of the inner part of the external box 313 is fitted with an internal bottom plate 312, and a plurality of plug-in tubes 310 are evenly connected to the upper surface of the internal bottom plate 312. An adapter block 39 is fixedly connected to the bottom of the plug-in tube 310, and the adapter block 39 is slidably matched with the T-slot block 38. Cotton tubes 311 are respectively plugged into the inside of the plug-in tube 310. In the initial state, one of the cotton tubes 311 is wrapped around the outer wall below the detection pressure head 15.

[0048] Furthermore, after the toothed power rod 31 drives the power gear 32 and the winding wheel 33 to rotate, the grooved shaft 37 can be driven downward through the force rope 34. When the grooved shaft 37 moves downward to the final position, the cotton tube 311 and the external box 313 will no longer block the outer wall below the detection pressure head 15.

[0049] Furthermore, the positions of the T-slot block 38 and the adapter block 39 correspond to each other, and the T-slot block 38 is located on the path of horizontal movement of the adapter block 39, such as Figure 8 As shown, in the initial state, one of the T-slot blocks 38 is slidably matched with the adapter block 39 .

[0050] Furthermore, the lower end of the adapter block 39 extends to below the bottom of the external box 313, the upper end of the adapter block 39 is cylindrical, and the lower end is T-shaped, for details, refer to Figure 8 and Fig.10 As shown, the T-shaped portion of the adapter block 39 can cooperate with the T-slot block 38 to drive the insert sleeve 310 to rotate.

[0051] Further, refer to Figures 7 to 10 As shown, the protective self-cleaning treatment mechanism also includes a dial plate 314 fixedly connected to the outer wall of one side of the built-in bottom plate 312, and a through flat groove is opened at the position corresponding to the external box 313 and the dial plate 314. The dial plate 314 is slidably connected to the through flat groove, and the dial plate 314 extends to the outside of the external box 313 through the through flat groove, and the top surface extending to the external part is fixedly connected with a magnetic plate 315. For details, refer to Figure 7 As shown, the outer wall of the external box 313 close to the dial plate 314 is evenly fixedly connected with multiple magnetic blocks 316, the positions of the magnetic blocks 316 correspond to the positions of the insertion tube 310 and the cotton tube 311, and the magnetic properties of the magnetic plate 315 and the magnetic blocks 316 that are close to each other are opposite. Initially, the magnetic plate 315 is magnetically attracted to one of the magnetic blocks 316.

[0052] The complete working principle and steps of the above embodiment are as follows:

[0053] refer to Figure 1 , Figure 2 and Figures 4 to 6 As shown:

[0054] Starting steps: First, the tester places the reducer housing to be tested horizontally on the center of the upper surface of the disc clamp 13, and clamps the four sides of the bottom of the reducer housing with the disc clamp 13. Then, the tester starts the two hydraulic cylinders 22 at the same time, causing their telescopic ends to drive the two pressure plates 23 toward the direction of the reducer housing, and move horizontally towards each other until the pressure plates 23 contact the reducer housing, and then close the hydraulic cylinders 22.

[0055] refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown:

[0056] When the telescopic end of the hydraulic cylinder 22 moves, it will also synchronously drive the toothed power rod 31 to move. As the toothed power rod 31 moves, it will gradually mesh with the power gear 32, causing the power gear 32 to rotate counterclockwise. The power gear 32 rotates counterclockwise to reel in the force rope 34, and uses the traction of the force rope 34 to pull the rotating disc 35 and the grooved shaft 37 to move vertically downward. During this process, the vertical spring on the spring plate 3501 is compressed. At the same time, during the downward movement of the grooved shaft 37, because the plate fixing ring 36 is fixed, the spiral groove on the outer ring surface of the grooved shaft 37 will slide against the protrusion on the inner ring surface of the ring of the plate fixing ring 36, thereby causing the grooved shaft 37 to rotate during the downward movement. As the grooved shaft 37 moves downward, the T-slot block 38 and one of the adapter blocks 39 cooperate to cause the inserting tube 310, the cotton tube 311, and the external box 313 to move downward synchronously. During this process, the external box 313 moves vertically downward along the track of the slotted plate 3131. Figure 8 As shown, during this process, one of the cotton cylinders 311 corresponding to the detection pressure head 15 will gradually move away from the lower outer wall of the detection pressure head 15, and at the same time, the through hole at the top of the external box 313 will also move downward away from the lower outer wall of the detection pressure head 15. Since the cotton cylinder 311 is inserted into the inside of the insert cylinder 310, the insert cylinder 310 slides with the T-slot block 38 through the adapter block 39, so that as the above-mentioned grooved shaft 37 rotates, one of the cotton cylinders 311 will be driven to rotate synchronously.

[0057] In this way, the grooved shaft 37 can rotate while moving vertically downward, causing the cotton tube 311 to rotate and wipe the outer wall below the detection pressure head 15 to remove impurities attached to the outer wall of the detection pressure head 15 during the previous test, or impurities on the outer wall below the detection pressure head 15 that were not manually cleaned, thereby ensuring that during the hardness test of the detection pressure head 15, the outer wall below it can always be in a relatively clean state, so as to ensure the accuracy of the hardness test data of the detection pressure head 15.

[0058] refer to Figure 2 As shown, the tester then starts the moving device 14 through the external controller, moves the detection pressure head 15 to the top of the reducer housing through the moving device 14, and then starts the detection pressure head 15 to force it to apply downward pressure to the reducer housing, and then the hardness test can be started. At the same time, the tester starts the hydraulic cylinder 22 again to force its telescopic end to drive the pressure plate 23 to continue to apply pressure to both sides of the reducer housing at the same time.

[0059] Thus, by simultaneously applying opposite pressures on both sides of the reducer housing, compared with the existing method of testing hardness by point contact, the present invention can simultaneously perform two testing methods, point contact and extrusion of the housing, and can simulate the changes of the reducer housing when it is squeezed in actual use, and more truly reflect the performance and changes of the reducer housing under stress, thereby more effectively knowing the hardness performance of the reducer housing.

[0060] like Figure 5 and Figure 6 As the telescopic end of the hydraulic cylinder 22 drives the pressure plate 23 to continuously squeeze the reducer housing, if the squeezed part of the reducer housing becomes concave and deformed, as the hydraulic cylinder 22 drives the pressure plate 23 to continue squeezing the reducer housing, the pressure plate 23 will be displaced. At this time, the coplanar plate 27 flush with the surface of one side of the pressure plate 23 does not contact the compressed part of the reducer housing, but contacts the uncompressed part of the reducer housing. Then, as the pressure plate 23 continues to squeeze, if the reducer housing becomes concave, the coplanar plate 27 will be resisted by the non-concave reducer housing, and the force spring 26 will be compressed. At this time, the L fixed plate 24, the alarm 25, and the control switch 28 will move toward the direction of the hydraulic cylinder 22. When the control switch 28 contacts the raised rod on one side of the common panel 27, the control switch 28 controls the alarm 25 to give an audible and visual prompt. The inspector can then immediately know that the squeezed portion of the reducer housing has been deformed and can stop the hydraulic cylinder 22 from continuously applying pressure thereto to avoid excessive pressure causing the reducer housing to rupture and splash fragments.

[0061] In this way, during the process of continuous squeezing of the reducer housing by the pressure plate 23, the sound and light prompt function of the alarm 25 provides the tester with sound and light prompt feedback when the reducer housing is compressed and deformed, so that the tester can observe the physical changes of the reducer housing after being compressed in time, and can also assist the tester in judging the maximum pressure bearing range on both sides of the reducer housing.

[0062] In addition, if the tester needs to Figure 2 The reducer shown in the figure is rotated 90 degrees, and the surfaces on the other two sides are simulated. Figure 2 and Figure 3As shown, the tester first retracts the telescopic end of the hydraulic cylinder 22 to the initial state through the external controller. During this process, the toothed power rod 31 drives the power gear 32 to rotate in the opposite direction, and finally the toothed power rod 31 does not mesh with the power gear 32. At this time, under the action of the rebound force of the vertical spring, the rotating disc 35 and the grooved shaft 37 are prompted to move up and reset. At this time, the detection pressure head 15 has not moved to the initial origin position. Then, the tester starts the servo motor 12 to drive the disc fixture 13 and the reducer housing to rotate ninety degrees to perform the above-mentioned extrusion simulation test on the other two sides of the reducer housing. During this test, the rotating disc 35, the grooved shaft 37 and other components will move down again.

[0063] In this way, after simulating the hardness test of two sides of the reducer housing, the reducer housing is rotated ninety degrees by the servo motor 12, and the other two sides of the reducer housing are simulated tested to achieve pressure testing on different surfaces of the reducer housing. At the same time, after the reducer housing is rotated ninety degrees, the clamping force provided by the disc clamp 13 and the opposite pressure provided by the two hydraulic cylinders 22 can ensure the stability of the reducer housing during testing.

[0064] Finally, when all the testing work is completed, the tester applies a magnetic attraction force greater than that between the magnetic plate 315 and the magnetic block 316 by holding the dial plate 314, so that the dial plate 314 is pushed horizontally along the track passing through the flat groove toward the direction close to the power gear 32, so that the magnetic plate 315 moves to the position of the next magnetic block 316 for adsorption. In this process, the dial plate 314 drives a cotton cylinder 311 and an insert cylinder 310 to move to the position of the cotton cylinder 311 corresponding to the outer wall below the detection pressure head 15 at the beginning. Then, the tester starts the moving device 14 through the external controller, moves the detection pressure head 15 to the initial origin position, and retracts the telescopic end of the hydraulic cylinder 22 through the external controller. As the hydraulic cylinder 22 retracts the grooved shaft 37, the T-slot block 38, the adapter block 39, the insert cylinder 310, the cotton cylinder 311, and the external box 313 will move up and reset to the initial position.

[0065] In this way, after each hardness test of the detection pressure head 15, the tester can quickly replace the cotton tube 311 used in the last use process, and after the detection pressure head 15 is used and returns to the initial origin position, as the telescopic end of the hydraulic cylinder 22 is retracted, the cotton tube 311 and the external box 313 can be automatically put back on the lower outer wall of the detection pressure head 15 again, thereby automatically forming protection for the lower outer wall of the detection pressure head 15, preventing the detection pressure head 15 from being affected by dust or impurities in the external environment when not in use, thereby improving the service life of the detection pressure head 15.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-strength aluminum alloy reducer housing hardness testing device, comprising a main support plate (1), a moving device (14), and a detection pressure head (15), characterized in that: A fixed disk (11) is fixedly connected to the upper surface of the bottom of the main support plate (1), a servo motor (12) is fixedly mounted on the upper surface of the bottom of the fixed disk (11), a disc clamp (13) is rotatably connected to the top of the fixed disk (11), pressure simulation detection mechanisms are symmetrically arranged on both sides of the main support plate (1), and a protective self-cleaning treatment mechanism is arranged below the detection pressure head (15); The pressure simulation detection mechanism comprises triangular plates (21) symmetrically fixedly connected to two sides of the main support plate (1), the two triangular plates (21) are respectively fixedly mounted with hydraulic cylinders (22) at one end close to the disc clamp (13), the telescopic end of the hydraulic cylinder (22) is fixedly connected with a pressure plate (23), the top of the pressure plate (23) close to the hydraulic cylinder (22) is fixedly connected with an L fixed plate (24), the surface of the L fixed plate (24) close to the hydraulic cylinder (22) is fixedly mounted with an alarm (25), the surface of the L fixed plate (24) away from the hydraulic cylinder (22) is fixedly mounted with a control switch (28), the surface of the L fixed plate (24) away from the hydraulic cylinder (22) is also fixedly connected with a force spring (26), the end of the force spring (26) away from the L fixed plate (24) is fixedly connected with a coplanar plate (27), and the surface of the coplanar plate (27) facing the control switch (28) is provided with a protruding rod; The protective self-cleaning treatment mechanism comprises a toothed power rod (31), an outer wall of one side of one of the two pressure plates (23) is fixedly connected to the toothed power rod (31), a surface of the main support plate (1) close to the toothed power rod (31) is rotatably connected to a power gear (32), the power gear (32) is located on a path of horizontal movement of the toothed power rod (31), and a surface of the power gear (32) away from the main support plate (1) is coaxially fixedly connected to a winding wheel (33), the winding wheel (33) ) is wound around the outer annular surface of a force-bearing rope (34), one end of the force-bearing rope (34) away from the winding wheel (33) is fixedly connected to a rotating disc (35), a side of the rotating disc (35) close to the main support plate (1) is provided with a spring plate (3501), the spring plate (3501) is composed of a plate body and a vertical spring fixedly connected to the plate body, the upper surface of the rotating disc (35) is rotatably connected to a grooved shaft (37), the outer annular surface of the grooved shaft (37) is provided with a spiral groove, and the outer surface of the grooved shaft (37) is provided with a plate fixing ring (36), The plate-fixed ring (36) is composed of a circular ring sleeved on the outside of the grooved shaft (37), and a flat plate fixedly connected to the outer ring surface of the circular ring; a protrusion is provided on the inner ring surface of the circular ring, and the protrusion is slidably connected to the spiral groove on the outer ring surface of the grooved shaft (37); a T-slot block (38) is fixedly connected to the top surface of the grooved shaft (37); an external box (313) is provided above the grooved shaft (37); a surface of the main support plate (1) close to the external box (313) is symmetrically fixedly connected to a slotted plate (3131); and the external box (313) is fixedly connected to the outer ring surface of the main support plate (1). 13) is slidably connected to the slotted plate (3131), a through hole is opened at a position on the top of the external box (313) corresponding to the detection pressure head (15), the inner bottom surface of the external box (313) is fitted with an internal bottom plate (312), a plurality of plug-in cylinders (310) are evenly rotatably connected to the upper surface of the internal bottom plate (312), an adapter block (39) is fixedly connected to the bottom of the plug-in cylinder (310), the adapter block (39) is slidably matched with the T-slot block (38), and cotton cylinders (311) are respectively inserted into the inside of the plug-in cylinder (310).

2. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: The surface of the common plate (27) away from the force spring (26) and the surface of the pressure plate (23) away from the hydraulic cylinder (22) are flush with each other.

3. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: The control switch (28) is located on the horizontal movement path of the protruding rod on the surface of one side of the common plate (27).

4. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: The protrusion is hemispherical, and the outer surface of the protrusion and the groove surface of the spiral groove are both configured as smooth surfaces.

5. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: After the toothed power rod (31) drives the power gear (32) and the winding wheel (33) to rotate, the grooved shaft (37) can be moved downwards via the force rope (34).

6. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: The positions of the T-slot block (38) and the adapter block (39) correspond to each other, and the T-slot block (38) is located on a path of horizontal movement of the adapter block (39).

7. The high-strength aluminum alloy reducer housing hardness testing device according to claim 6 is characterized in that: The lower end of the adapter block (39) extends to below the bottom of the external box (313); the upper end of the adapter block (39) is cylindrical, and the lower end is T-shaped.

8. The high-strength aluminum alloy reducer housing hardness testing device according to claim 1 is characterized in that: The protective self-cleaning treatment mechanism further comprises a paddle (314) fixedly connected to an outer wall of one side of the built-in bottom plate (312); a through flat groove is provided at a position of the external box (313) corresponding to the paddle (314); the paddle (314) is slidably connected to the through flat groove; the paddle (314) passes through the through flat groove and extends to the outside of the external box (313); a magnetic plate (315) is fixedly connected to the top surface extending to the outside; a plurality of magnetic blocks (316) are evenly fixedly connected to the outer wall of the external box (313) on a side close to the paddle (314); the positions of the magnetic blocks (316) correspond to the positions of the insert tube (310) and the cotton tube (311); and the magnetic properties of the magnetic plate (315) and the magnetic blocks (316) are opposite to each other.

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