A kind of vacuum sintering furnace equipment vacuum pump shell compression resistance test device

Abstract

The present application relates to the technical fields of vacuum pump testing, in particular to a kind of vacuum sintering furnace equipment vacuum pump shell compression resistance test device, including cabinet shell, the outer wall of cabinet shell is rotatably connected with installation cabinet door, the inner wall top of cabinet shell is fixedly installed with the pressure bearing mechanism for extruding vacuum pump shell, pressure bearing mechanism applies impact extrusion force to the outer wall of vacuum pump shell, test vacuum pump shell by pressure bearing mechanism and detection mechanism to test its static balance state pressure bearing performance, vacuum pump is applied static pressure when detecting, data detection is carried out by detection mechanism, in detection, when shell is extruded and broken but not deformed, rupture causes gas leakage inside rubber corrugated sleeve, abutment ring block pushes moving block to move towards, make second elastic telescopic arm reset shrink, both can capture shell concave deformation, and subtle rupture condition can be detected, realize the comprehensive detection to the quality of vacuum pump shell.

Description

Technical Field

[0001] This invention relates to the field of vacuum pump testing technology, specifically to a device for testing the compressive strength of a vacuum pump casing for a vacuum sintering furnace. Background Technology

[0002] In modern industry, vacuum sintering furnaces are key equipment for the preparation of new materials. The performance of the vacuum pump housing directly affects the stability of the sintering process and the quality of the products. As the core structure for maintaining the vacuum environment and protecting the internal components, the vacuum pump housing needs to maintain high strength, high sealing and structural stability under extreme conditions (such as long-term high vacuum, violent temperature fluctuations, and mechanical vibration). If the housing has insufficient compressive strength or microscopic defects, it will not only lead to vacuum failure and prolong the sintering cycle, but may also cause uncontrolled reaction in the furnace due to gas leakage, and even cause serious consequences such as equipment damage and material scrapping, which directly restricts the efficiency and safety of new material research and development and production.

[0003] Currently, there are significant limitations in the testing technology for vacuum pump shells used in vacuum sintering furnaces. Existing testing equipment mostly uses single testing methods, such as static pressure testing or vibration simulation, which cannot accurately reproduce the combined load conditions of "vacuum negative pressure - temperature gradient - mechanical vibration" that the shell is subjected to in actual operation. This leads to a deviation between the pressure resistance performance assessment results and the actual operating conditions. In terms of defect detection, traditional manual visual inspection and conventional displacement sensors cannot effectively detect early damage such as micron-level cracks and stress concentration areas, resulting in a high rate of missed detection. Furthermore, existing equipment generally lacks multi-parameter collaborative testing capabilities and cannot simultaneously complete pressure bearing performance testing, dynamic deformation monitoring, and microcrack identification. This results in a cumbersome, inefficient, and costly testing process, which is difficult to meet the requirements of high efficiency and accuracy for testing technology in the rapid research and development and high-quality production of new materials.

[0004] Therefore, it is necessary to develop a vacuum pump shell pressure resistance test device suitable for vacuum sintering furnace equipment. This device needs to have core functions such as static pressure bearing test, dynamic deformation real-time monitoring and microcrack intelligent identification. Through multi-sensor data fusion and mechanical simulation algorithm, it can realize multi-dimensional and high-precision evaluation of shell structure performance, fill the technical gap in complex working condition simulation and composite defect detection, and provide technical support for improving the reliability of vacuum sintering furnace equipment and the high-quality development of the new materials industry.

[0005] A search revealed prior art publication number CN117606913A, which discloses a test device for testing the compressive strength of a vacuum pump housing. This device includes a first pressing component that forms a first arc-shaped pressing surface and a first flat pressing surface that match the shape of the outer surface of the vacuum pump housing under test; a second pressing component that forms a second arc-shaped pressing surface and a second flat pressing surface that match the shape of the outer surface of the vacuum pump housing under test; and a driving component used to move the first and second pressing components closer and further apart, and to obtain the pressure applied to the first and second pressing components. The beneficial effect of this application is that pressure is applied to the vacuum pump housing under test through the first and second arc-shaped pressing surfaces, and the first and second arc-shaped pressing surfaces have a larger contact area with the outer wall surface of the vacuum pump housing under test, thereby ensuring uniform pressure on the outer wall surface of the vacuum pump housing under test during the compressive strength test and increasing the accuracy of the measurement structure.

[0006] Therefore, based on the above search and in combination with the existing ones, the above-mentioned devices only test the pressure resistance of the vacuum pump housing when in use. However, when the vacuum pump housing is broken, it cannot be detected and can only be observed by the naked eye, which has limitations. In order to solve the problem of not being able to detect when the vacuum pump housing is broken, we propose a vacuum pump housing pressure resistance test device for vacuum sintering furnace equipment. Summary of the Invention

[0007] The purpose of this invention is to provide a test device for the compressive strength of a vacuum pump casing for a vacuum sintering furnace, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A pressure resistance performance testing device for a vacuum pump housing used in a vacuum sintering furnace includes a housing, an installation cabinet door rotatably connected to the outer wall of the housing, a pressure bearing mechanism fixedly installed at the top of the inner wall of the housing to compress the vacuum pump housing, the pressure bearing mechanism impacting and compressing the outer wall of the vacuum pump housing to test the pressure bearing capacity of the vacuum pump housing, an installation base fixedly connected to the bottom of the inner wall of the housing, an electric telescopic arm fixedly connected to the upper end of the installation base, and a testing mechanism for testing the vacuum pump housing fixedly installed at the upper end of the electric telescopic arm.

[0010] As a further aspect of this solution, the pressure-bearing mechanism includes an inner wall connecting plate, which is fixedly connected to the inner wall of the chassis housing, and a servo motor is fixedly installed at the upper end of the inner wall connecting plate.

[0011] As a further aspect of this solution, the output end of the servo motor is fixedly connected to a rotating disk, and the bottom of the inner wall connecting plate is also slidably connected to multiple mating moving rods with reset functions. The opposite ends of all the mating moving rods are fixedly connected to a first elastic telescopic arm.

[0012] As a further aspect of this solution, a contacting triangular block is fixedly connected to the end of the moving rod away from the first elastic telescopic arm, and a contacting force block is fixedly connected to the bottom of the rotating disk.

[0013] As a further aspect of this solution, the detection mechanism includes a first disc, which is fixedly connected to the upper end of an electric telescopic arm. A second disc is fixedly connected above the first disc via multiple second elastic telescopic arms, and a fourth elastic telescopic arm is fixedly connected to the bottom of the second disc.

[0014] As a further aspect of this solution, a movable conical block is fixedly connected to the bottom of the fourth elastic telescopic arm, and multiple mounting rectangular boxes are also fixedly connected to the bottom of the second disc. Each mounting rectangular box has a movable mating rod with a reset function slidably connected inside.

[0015] As a further aspect of this solution, each of the movable mating rods is fixedly connected to the movable conical block via a mating pull rope. A snap-fit ​​block is fixedly connected to the end of each movable mating rod away from the mating pull rope. Multiple mating limiting arms are fixedly connected to the upper end of the first disc. An abutment block is fixedly connected to the outer wall of each mating limiting arm. The outer wall of each mating limiting arm passes through the interior of the second disc. The side wall of each abutment block abuts against the side wall of the corresponding snap-fit ​​block. An abutment ring block is also fixedly connected to the upper end of the second disc.

[0016] As a further aspect of this solution, a rubber corrugated sleeve with a reset function is fixedly connected to the upper end of the second disc, and a third disc is also fixedly connected to the upper end of the rubber corrugated sleeve. Multiple moving blocks are slidably connected to the lower part of the third disc, and a connecting arm is fixedly connected to the bottom of each moving block.

[0017] As a further aspect of this solution, the second disc has multiple sliding rectangular openings inside, each connecting arm passes through the corresponding sliding rectangular opening, and two elastic contraction plates are fixedly connected to the inner wall of each sliding rectangular opening. The outer wall of each connecting arm abuts against the output end of the corresponding elastic contraction plate. A trigger block is fixedly connected to the upper end of each moving block, and multiple connecting strips are fixedly connected to the upper end of the third disc. Each trigger block is fixedly connected to the corresponding connecting strip through a third reset spring.

[0018] As a further aspect of this solution, a fixing collar is fixedly connected to the upper end of the third disc, the fixing collar being located inside the rubber corrugated sleeve, and a third elastic telescopic arm is fixedly connected to the upper end of the third disc, with an abutting block fixedly connected to the upper end of the third elastic telescopic arm.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Start the servo motor, which drives the rotating disk to move the mating force block, which then contacts the abutting triangular block in sequence. This pushes the mating moving rod and the first elastic telescopic arm, which compresses the vacuum pump housing through the abutting wheel. When a dent appears, the dent touches the trigger block, which triggers the moving block to move the connecting arm, pushing the moving cone block downward. The mating rope pulls the moving mating rod, causing the locking block to disengage from the abutting block. The second elastic telescopic arm resets, causing the housing to disengage from the abutting wheel. This is used to determine product quality issues. Combining pressure resistance testing with defect detection, automatic detection and feedback are achieved through mechanical linkage. The entire process is conducted in a closed and static state. Since the vacuum pump is in a fixed and stationary state during the test, there is no shaking during the test. This effectively detects the pressure load of the vacuum pump in a static state, accurately captures the dent deformation of the housing, eliminates the need for complex sensors, reduces costs and improves detection efficiency, can quickly respond to housing abnormalities, terminate the test in time and indicate quality problems, and effectively avoid invalid tests.

[0021] 2. During the testing process, when the housing is squeezed and cracked but not deformed, the crack causes gas leakage inside the rubber corrugated sleeve, which causes the rubber corrugated sleeve to contract. This contractions against the annular block, pushing the moving block to move towards each other, thus triggering subsequent mechanical structure actions. This causes the second elastic telescopic arm to reset and contract, thereby identifying housing quality defects. It can capture housing dents and deformations as well as detect minute cracks, achieving comprehensive and accurate testing of vacuum pump housing quality. This reduces costs and provides strong stability, enabling rapid response to housing anomalies and effectively improving testing efficiency and accuracy, providing a reliable guarantee for product quality control. Attached Figure Description

[0022] Figure 1 This is a front view of a test device for the compressive strength of a vacuum pump casing used in a vacuum sintering furnace.

[0023] Figure 2 This is a schematic diagram of the internal structure of the casing of a vacuum pump housing for testing the compressive strength of a vacuum sintering furnace.

[0024] Figure 3 This is a schematic diagram of the pressure bearing mechanism of a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0025] Figure 4This is a bottom view of the pressure bearing mechanism of a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0026] Figure 5 This is a schematic diagram of the first disk position structure of a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0027] Figure 6 This is a schematic diagram of the position of the second disk in a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0029] Figure 8 This is a schematic diagram of the position structure of the moving conical block in a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0030] Figure 9 This is a schematic diagram of the internal structure of the rectangular box used for testing the compressive strength of a vacuum pump housing in a vacuum sintering furnace.

[0031] Figure 10 This is a schematic diagram of the position structure of the fourth elastic telescopic arm of a vacuum pump housing pressure resistance test device for a vacuum sintering furnace.

[0032] Figure 11 This is a top view of the contact ring block of a vacuum pump housing pressure resistance testing device for a vacuum sintering furnace.

[0033] Figure 12 A schematic diagram showing the state of testing the compressive strength of a vacuum pump housing.

[0034] In the diagram: 1-Chassis housing; 3-Display panel; 4-Mounting cabinet door; 5-Mounting base; 6-Electric telescopic arm; 7-Inner wall connecting plate; 8-Rotating disc; 9-Servo motor; 10-Matching force-bearing block; 11-Abutting triangular block; 12-Matching moving rod; 13-First elastic telescopic arm; 14-Matching abutting wheel; 15-Reset fixing rod;

[0035] 16-First disc; 17-Second elastic telescopic arm; 18-Second disc; 19-Rubber corrugated sleeve; 20-Third disc; 21-Fixing collar; 22-Trigger block; 23-Third return spring; 24-Third elastic telescopic arm; 25-Abutting block; 26-Rubber pad; 27-First sliding opening; 28-Moving block; 29-Connecting arm; 30-Matching limiting arm; 31-Moving conical block;

[0036] 32-Snap-fit ​​block; 33-Sliding rectangular opening; 34-Moving mating rod; 35-Fourth return spring; 36-Matching pull rope; 37-Fourth elastic telescopic arm; 38-Elastic shrink plate; 39-Mounting rectangular box; 41-Abutting ring block; 101-Pressure bearing mechanism; 201-Detection mechanism; X-Vacuum pump output port; F-Vacuum pump housing. Detailed Implementation

[0037] 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.

[0038] Example 1: Please refer to Figure 1 , Figure 2 As shown, a vacuum pump housing pressure resistance testing device for vacuum sintering furnace equipment includes a housing 1. Two mounting cabinet doors 4 are rotatably connected to the outer wall of the housing 1 via a rotating shaft. A display panel 3 is also fixedly installed on the outer wall of the mounting cabinet doors 4. A pressure bearing mechanism 101 capable of compressing the vacuum pump housing is fixedly installed at the top of the inner wall of the housing 1. A mounting base 5 is fixedly connected to the bottom of the inner wall of the housing 1 via bolts. An electric telescopic arm 6 is fixedly connected to the upper end of the mounting base 5. A detection mechanism 201 capable of detecting the vacuum pump housing is fixedly installed at the upper end of the electric telescopic arm 6. During testing, the vacuum pump housing is tested through the pressure bearing mechanism 101 and the detection mechanism 201. The vacuum pump housing is tested in a static environment, and pressure data is collected under static conditions to test its pressure bearing performance in static equilibrium. During the vacuum pump test, static pressure is applied, and the detection mechanism 201 simultaneously detects data, detecting the stress distribution, deformation, and potential crack trends on the housing surface to achieve quantitative testing and evaluation of its pressure bearing performance in static equilibrium.

[0039] Example 2: Please refer to Figures 2-4As shown, the pressure bearing mechanism 101 includes an inner wall connecting plate 7, which is fixedly connected to the inner wall of the housing 1. A servo motor 9 is fixedly installed at the upper end of the inner wall connecting plate 7. A rotating disk 8 is fixedly connected to the output end of the servo motor 9. The rotating disk 8 has multiple weight reduction ports, which are circumferentially distributed on the outer wall of the rotating disk 8. Multiple mating moving rods 12 with reset function are also slidably connected to the bottom of the inner wall connecting plate 7. The multiple mating moving rods 12 are circumferentially distributed at the bottom of the rotating disk 8. Each mating moving rod 12 is fixedly connected to the rotating disk 8 by a first reset spring. A first elastic telescopic arm 13 is fixedly connected to the opposite end of all mating moving rods 12.

[0040] The end of the first elastic telescopic arm 13 away from the mating moving rod 12 is rotatably connected to a mating abutment wheel 14 via a rotating shaft. When the vacuum pump housing contacts the outer wall of the first elastic telescopic arm 13, the mating abutment wheel 14 can effectively reduce the friction between the vacuum pump housing and the first elastic telescopic arm 13. The end of the mating moving rod 12 away from the first elastic telescopic arm 13 is fixedly connected to an abutment triangular block 11. The bottom of the abutment triangular block 11 is an inclined surface. The bottom of the rotating disk 8 is fixedly connected to a mating force block 10. The mating force block 10 and the abutment triangular block 11 are on the same horizontal plane. When the servo motor 9 drives the rotating disk 8 to rotate, the rotating disk 8 will drive the mating force block 10 to abut against the inclined surface of the abutment triangular block 11. The abutment triangular block 11 will be squeezed, causing the mating moving rod 12 to move.

[0041] Please see Figures 5-11 As shown, the detection mechanism 201 includes a first disc 16, which is fixedly connected to the upper end of the electric telescopic arm 6. A second disc 18 is fixedly connected above the first disc 16 via multiple second elastic telescopic arms 17. The multiple second elastic telescopic arms 17 are circumferentially distributed between the second disc 18 and the first disc 16. At this time, all the second elastic telescopic arms 17 are in a stretched and charged state. A fourth elastic telescopic arm 37 is fixedly connected to the bottom of the second disc 18, and a movable cone block 31 is fixedly connected to the bottom of the fourth elastic telescopic arm 37. The bottom of the second disc 18 is also fixed... Multiple mounting rectangular boxes 39 are connected, and the multiple mounting rectangular boxes 39 are distributed in a circle at the bottom of the second disc 18. Each mounting rectangular box 39 has a sliding connecting rod 34 with a reset function inside. The moving connecting rod 34 is fixedly connected to the mounting rectangular box 39 by a fourth reset spring 35. The fourth reset spring 35 is sleeved on the moving connecting rod 34. Each moving connecting rod 34 is connected to the moving conical block 31 by a connecting rope 36. A snap-fit ​​block 32 is fixedly connected to the end of each moving connecting rod 34 away from the connecting rope 36. The cross-section of the snap-fit ​​block 32 is triangular.

[0042] The upper end of the first disc 16 is fixedly connected to multiple mating limiting arms 30. Each mating limiting arm 30 has an abutment block fixedly connected to its outer wall. The multiple mating limiting arms 30 are circumferentially distributed at the upper end of the first disc 16. The outer wall of each mating limiting arm 30 passes through the second disc 18. The side wall of each abutment block abuts against the side wall of the corresponding locking block 32. An abutment ring block 41 is also fixedly connected to the upper end of the second disc 18. A rubber corrugated sleeve 19 with a reset function is fixedly connected to the upper end of the second disc 18. A third disc 20 is also fixedly connected to the upper end of the rubber corrugated sleeve 19. The rubber corrugated sleeve 19 is made of rubber. The rubber material has good corrosion resistance and high temperature resistance, and is durable. The rubber corrugated sleeve 19 is also fixedly installed with a second return spring. The elastic coefficient of the second elastic telescopic arm 17 is greater than that of the second return spring, and the elastic coefficient of the third elastic telescopic arm 24 is less than that of the second return spring. Multiple moving blocks 28 are slidably connected to the lower part of the third disc 20. The multiple moving blocks 28 are circumferentially distributed inside the third disc 20. Specifically, multiple first sliding openings 27 are opened inside the third disc 20, and each moving block 28 is slidably connected inside the corresponding first sliding opening 27.

[0043] Each movable block 28 has a connecting arm 29 fixedly connected to its bottom. The second disc 18 has multiple sliding rectangular openings 33 inside, each communicating with a rubber corrugated sleeve 19. These openings are circumferentially distributed on the second disc 18. Each connecting arm 29 passes through the corresponding sliding rectangular opening 33. Two elastic contraction plates 38 are fixedly connected to the inner wall of each sliding rectangular opening 33. The outer wall of each connecting arm 29 abuts against the output end of the corresponding elastic contraction plate 38. When the connecting arm 29 moves up and down, the rubber corrugated sleeve 19 is compressed and communicates with the sliding rectangular opening 33. To prevent gas from escaping through the gap between the sliding rectangular opening 33 and the connecting arm 29, the elastic contraction plates 38 abut against the gap when the connecting arm 29 moves, effectively preventing gas leakage from inside the rubber corrugated sleeve 19. Each movable block 28 has a trigger block 22 fixedly connected to its upper end. The upper end of the third disc 20 is fixedly connected to multiple connecting strips. Each trigger block 22 is fixedly connected to the corresponding connecting strip through a third return spring 23. When the trigger block 22 is squeezed, the third return spring 23 contracts and stores force. When the trigger block 22 is released from the squeeze, the third return spring 23 will drive the trigger block 22 to quickly return to its original position. The upper end of the third disc 20 is fixedly connected to a fixing collar 21, which is located inside the rubber corrugated sleeve 19. The outer diameter of the fixing collar 21 is smaller than the inner diameter of the vacuum pump housing. The upper end of the third disc 20 is fixedly connected to a third elastic telescopic arm 24, which is located at the center of all the trigger blocks 22. The upper end of the third elastic telescopic arm 24 is fixedly connected to an abutting block 25. Both the abutting block 25 and the upper end of the third disc 20 are fixedly connected to rubber pads 26. The rubber pads 26 are made of silicone, which has good elasticity. The rubber pads 26 can enhance the sealing between the vacuum pump housing and the abutting block 25 and the third disc 20.

[0044] Multiple reset fixing rods 15 are fixedly connected to the upper end of the mounting base 5. The length of the reset fixing rods 15 is greater than the distance between the first disc 16 and the second disc 18. When the locking block 32 disengages from the outer wall of the abutment block, all the second elastic telescopic arms 17 will retract, causing the second disc 18 to move downwards. In order to reset the second disc 18, the electric telescopic arm 6 will drive the first disc 16 downwards. At this time, the reset fixing rods 15 will pass through the first disc 16. The upper end of the first disc 15 abuts against the bottom of the second disc 18. At this time, the second disc 18 abuts against the reset fixing rod 15. The first disc 16 continues to move downward, which will stretch the second elastic telescopic arm 17. The second elastic telescopic arm 17 is still in the storage state. When the abutting block on the outer wall of the limiting arm 30 abuts against the inclined surface of the locking block 32, when the locking block 32 disengages from the abutting block, the upper end of the locking block 32 will abut against the bottom of the abutting block, thus completing the reset of the second disc 18.

[0045] The working principle of this invention is as follows: The vacuum pump housing is passed through the third elastic telescopic arm 24, so that the upper end of the abutting block 25 abuts against the inner wall of the output port of the vacuum pump housing. At this time, the electric telescopic arm 6 is activated to extend upward. The electric telescopic arm 6 will drive all the upper components to move. When the upper end of the vacuum pump housing abuts against the bottom of the inner wall connecting plate 7, (please refer to the following for details) Figure 12 At this time, the third elastic telescopic arm 24 retracts. When the bottom of the vacuum pump housing is engaged with the outer wall of the fixing collar 21, the bottom will also abut against the upper end of the third disc 20. At this time, the inside of the vacuum pump housing is in a closed state. The electric telescopic arm 6 continues to extend upward. At this time, the rubber corrugated sleeve 19 is squeezed and contracted. The gas inside the rubber corrugated sleeve 19 will enter the vacuum pump housing. It is worth noting that the rubber corrugated sleeve 19 is not fully contracted at this time, and there is still gas inside. At this time, the vacuum pump housing is fixed. It is worth noting that the vacuum pump is in a stationary state at this time, and the vacuum pump is still inside the housing 1, in a sealed environment, and will not be affected in any way.

[0046] At this time, the servo motor 9 is activated. The servo motor 9 will drive the cooperating force block 10 to move by rotating the disk 8. The cooperating force block 10 will abut against the outer wall of the abutting triangular block 11 one by one. The abutting triangular block 11 will drive the first elastic telescopic arm 13 to move by cooperating with the moving rod 12. The first elastic telescopic arm 13 will press against the outer wall of the vacuum pump housing by cooperating with the abutting wheel 14. At this time, the vacuum pump is in a stationary state and the outer wall is being pressed. When the vacuum pump housing is dented (the dented part will protrude inward, and the inward protruding area will abut against the trigger block 22), the dented part will abut against the corresponding trigger block 22. When the outer wall abuts, the trigger block 22 will drive the moving block 28 to move, the moving block 28 will drive the connecting arm 29 to move, and the connecting arm 29 will abut against the outer wall of the moving cone block 31 when it moves. The moving cone block 31 moves downward and will pull all the moving connecting rods 34 through multiple cooperating pull ropes 36. The moving connecting rods 34 will drive the locking block 32 to disengage from the outer wall of the abutting block. At this time, the second elastic telescopic arm 17 will reset and move downward to drive the vacuum pump housing to disengage from the abutting wheel 14, which indicates that the product has a quality problem.

[0047] In another scenario, when the vacuum pump housing is crushed but not deformed, the gas inside the rubber bellows 19 will leak out through the crack. At this time, the rubber bellows 19 will contract, and the inner wall of the abutting ring block 41 will abut against the bottom of all the moving blocks 28. At this time, all the moving blocks 28 will move in opposite directions. According to the working principle described above, the second elastic telescopic arm 17 will reset and contract. It can be seen that the vacuum pump housing has a quality problem when subjected to pressure.

[0048] When the second disk 18 needs to be reset, simply move the second disk 18 upwards. When the abutment block abuts against the outer wall of the locking block 32, the reset of the second disk 18 can be completed.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A test device for the compressive strength of a vacuum pump housing used in a vacuum sintering furnace, comprising a housing, characterized in that: The outer wall of the chassis is rotatably connected to a mounting cabinet door. The top of the inner wall of the chassis is fixedly installed with a pressure bearing mechanism for pressing the vacuum pump housing. The pressure bearing mechanism applies impact and extrusion force to the outer wall of the vacuum pump housing to test the pressure bearing capacity of the vacuum pump chassis. The bottom of the inner wall of the chassis is fixedly connected to a mounting base. The upper end of the mounting base is fixedly connected to an electric telescopic arm. The upper end of the electric telescopic arm is fixedly installed with a detection mechanism for testing the vacuum pump housing. During testing, the vacuum pump housing is tested through the pressure bearing mechanism and the detection mechanism. The detection mechanism includes a first disc, which is fixedly connected to the upper end of an electric telescopic arm. A second disc is fixedly connected above the first disc via multiple second elastic telescopic arms. A fourth elastic telescopic arm is fixedly connected to the bottom of the second disc. A movable conical block is fixedly connected to the bottom of the fourth elastic telescopic arm. Multiple mounting rectangular boxes are also fixedly connected to the bottom of the second disc. Each mounting rectangular box has a slidingly connected movable mating rod with a reset function inside. Each of the movable mating rods is connected to the movable cone block via a mating pull rope. A locking block is fixedly connected to the end of each movable mating rod away from the mating pull rope. Multiple mating limiting arms are fixedly connected to the upper end of the first disc. An abutment block is fixedly connected to the outer wall of each mating limiting arm. Each mating limiting arm passes through the interior of the second disc. The side wall of each abutment block abuts against the side wall of the corresponding locking block. The upper end of the second disk is also fixedly connected to an abutting ring block, and the upper end of the second disk is fixedly connected to a rubber corrugated sleeve with a reset function. The upper end of the rubber corrugated sleeve is also fixedly connected to a third disk. The lower part of the third disk is slidably connected to multiple moving blocks, and the bottom of each moving block is fixedly connected to a connecting arm. The abutting ring block is sleeved on the outside of all the connecting arms. The second disc has multiple sliding rectangular openings inside. Each connecting arm passes through the corresponding sliding rectangular opening. Two elastic contraction plates are fixedly installed inside each sliding rectangular opening. The telescopic ends of the two elastic contraction plates are arranged opposite each other, and the surface of the connecting arm abuts against the telescopic ends of the two elastic contraction plates respectively. A trigger block is fixedly connected to the upper end of each moving block. Multiple connecting strips are fixedly connected to the upper end of the third disc. Each trigger block is fixedly connected to the corresponding connecting strip by a third reset spring. A fixing collar is fixedly connected to the upper end of the third disk, the fixing collar being located inside the rubber corrugated sleeve. A third elastic telescopic arm is fixedly connected to the upper end of the third disk, and an abutting block is fixedly connected to the upper end of the third elastic telescopic arm.

2. The vacuum pump housing compression resistance testing device for vacuum sintering furnace equipment according to claim 1, characterized in that: The pressure bearing mechanism includes an inner wall connecting plate, which is fixedly connected to the inner wall of the chassis housing, and a servo motor is fixedly installed at the upper end of the inner wall connecting plate.

3. The vacuum pump housing compression resistance testing device for vacuum sintering furnace equipment according to claim 2, characterized in that: The output end of the servo motor is fixedly connected to a rotating disk, and the bottom of the inner wall connecting plate is also slidably connected to a plurality of mating moving rods with a reset function. The opposite ends of all the mating moving rods are fixedly connected to a first elastic telescopic arm.

4. The vacuum pump housing compression resistance testing device for vacuum sintering furnace equipment according to claim 3, characterized in that: The end of the movable rod away from the first elastic telescopic arm is fixedly connected to an abutting triangular block, and the bottom of the rotating disk is fixedly connected to a cooperating force-bearing block.

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