A motor housing pressure test bench

Abstract

The present invention relates to the technical field of compression testing, and proposes a motor housing compression test bench, including a test bench, a bottom plate fixedly installed at the bottom of the test bench, a connecting structure slidably sleeved on the left and right sides of the test bench, a first electric push rod installed on both sides of the test bench, the first electric push rod is fixedly connected to the connecting structure, a clamping structure is fixedly installed in the middle of the connecting structure, and an extrusion structure is installed on both the front and rear sides of the test bench. By installing two symmetrical extrusion structures on the front and rear sides of the test bench, and setting a rotating shaft on the outer side of the extrusion structure, when the rotating shaft rotates, the eccentric block squeezes the connecting block toward the motor housing, so that the first pressing block at the top of the connecting block contacts the motor housing, so that the motor housing is subjected to compression testing, and at the same time, the test probe continues to monitor the inner wall of the motor housing, and detects and records the deformation of the motor housing when it is under pressure, so as to ensure the accuracy of the compression test of the motor housing.

Description

Technical Field

[0001] The invention relates to the technical field of pressure resistance detection, and in particular to a motor housing pressure resistance test bench. Background Art

[0002] In the production and processing of motors, it is often necessary to use a casing to protect the internal components of the motor. Commonly used motor casings are often made of aluminum alloy materials, and the surface of the casing is mostly heat dissipation fins. Although the aluminum alloy casing has a certain pressure resistance effect, it is often necessary to undergo a pressure resistance test before it can be put into use. The existing pressure resistance detection method is mainly to apply external force to the motor casing to observe whether the motor casing will be deformed or damaged under a fixed pressure. However, due to the different shapes and functions, the fin part is easy to deform, which affects the accuracy of the motor casing pressure test. Therefore, when testing the motor casing, the deformation and damage of the inner wall of the casing should be focused on, so as to better

[0003] When the motor is subjected to external force, it will be subjected to external forces of different shapes. The different contact areas will cause different damages to the motor casing under the same external force. When the pressure applied to the motor casing is uneven, it will cause the motor casing to slide in the horizontal direction, resulting in deviations in the values ​​measured by the pressure sensor, thereby affecting the results of the pressure resistance test.

[0004] Therefore, we made improvements to this and proposed a motor casing pressure test bench. Summary of the invention

[0005] The technical problems to be solved by the present invention are: low test accuracy and the test is easily affected by external conditions.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a motor housing compression test bench, including a test bench, a bottom plate is fixedly installed at the bottom of the test bench, a connecting structure is slidably sleeved on the left and right sides of the test bench, a first electric push rod is installed on both sides of the test bench, the first electric push rod is fixedly connected to the connecting structure, a clamping structure is fixedly installed in the middle of the connecting structure, an extrusion structure is installed on the front and rear sides of the test bench, a rotating shaft is arranged on the outer side of the extrusion structure, both ends of the rotating shaft are installed on the connecting structure, and a driving motor is fixedly installed on one end of the rotating shaft.

[0007] As a further solution of the present invention, the connection structure includes a connection plate, connection holes are opened on both sides of the connection plate, a rack is installed on one side of the connection plate, and the rack is fixedly connected to the test bench.

[0008] As a further solution of the present invention, the clamping structure includes a rotating table, which is sleeved in the middle part of the connecting plate, a gear is installed on the outer end of the rotating table, the gear is meshed with the rack, a pressure plate is provided on the inner side of the rotating table, a second electric push rod is connected between the rotating table and the pressure plate, a connecting rod is fixedly connected to the middle part of the pressure plate, a plurality of spring telescopic tubes are installed around the connecting rod, and a test probe is fixedly installed at the end of the spring telescopic tube.

[0009] As a further solution of the present invention, the extrusion structure includes a fixed frame, the upper and lower ends of the fixed frame are fixedly installed on the test bench, five connecting blocks are interspersed in the middle of the fixed frame, a telescopic groove is opened in the middle of the connecting block, the top ends of the five connecting blocks are respectively connected to a first pressure block, a second pressure block, a third pressure block, a fourth pressure block and a fifth pressure block of different shapes, and a compression spring is connected between the fixed frame and the connecting block.

[0010] As a further solution of the present invention, the number of the extrusion structures is two, and the two extrusion structures are symmetrically clamped on two sides of the motor housing.

[0011] As a further solution of the present invention, the rotating shaft includes a connecting shaft, both ends of the connecting shaft are installed on the connecting holes, and an eccentric block is fixedly installed in the middle of the connecting shaft.

[0012] As a further solution of the present invention, the width of the eccentric block is consistent with the width of the extrusion structure, and the eccentric block is oval-shaped, and the eccentric block is in abutment with the surface of the connecting block.

[0013] As a further solution of the present invention, the number of the clamping structures is two, and the two pressure plates are clamped at both ends of the motor housing and remain coaxial with the motor housing.

[0014] The motor housing compression test bench provided by the present invention has the following beneficial effects:

[0015] 1. Two symmetrical extrusion structures are installed on the front and rear sides of the test bench, and a rotating shaft is arranged on the outside of the extrusion structure. When the rotating shaft rotates, the eccentric block squeezes the connecting block toward the motor housing, so that the first pressing block on the top of the connecting block contacts the motor housing, and the motor housing is subjected to a compression test. At the same time, the test probe continues to monitor the inner wall of the motor housing, and the deformation amount of the motor housing when it is compressed is detected and recorded to ensure the accuracy of the compression test of the motor housing.

[0016] 2. The motor housing is clamped and fixed by two clamping structures, and the clamping structure and the motor housing rotate as the connecting structure moves up and down, so that different extrusion tests can be performed on different surfaces of the motor housing, so that the compressive performance of the motor housing can be tested more accurately.

[0017] 3. By installing multiple connecting blocks on the fixed frame, and installing the first pressure block, the second pressure block, the third pressure block, the fourth pressure block and the fifth pressure block on the connecting blocks respectively, wherein the shapes of the first pressure block, the second pressure block, the third pressure block, the fourth pressure block and the fifth pressure block and the contact area with the motor housing are different, the collision damage of the motor housing under any circumstances can be simulated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the use of a motor housing compression test bench provided in this application;

[0020] Figure 2 A schematic diagram of the overall structure of a motor housing compression test bench provided in this application;

[0021] Figure 3 A schematic diagram of the internal structure of a motor housing compression test bench provided in this application;

[0022] Figure 4 A schematic diagram of the connection structure of a motor housing compression test bench provided in this application;

[0023] Figure 5 A schematic diagram of the clamping structure of a motor housing compression test bench provided in this application;

[0024] Figure 6 A schematic diagram of the extrusion structure of a motor housing compression test bench provided in this application;

[0025] Figure 7 A rear view of the extrusion structure of a motor housing compression test bench provided in this application;

[0026] Figure 8 A schematic diagram of the rotating shaft structure of a motor casing compression test bench provided in this application.

[0027] In the figure: 1. test bench; 2. first electric push rod; 3. connecting structure; 31. connecting plate; 32. connecting hole; 33. rack; 4. clamping structure; 41. gear; 42. rotating table; 43. pressure plate; 44. second electric push rod; 45. connecting rod; 46. spring telescopic tube; 47. test probe; 5. extrusion structure; 51. fixing frame; 52. compression spring; 53. connecting block; 54. telescopic groove; 55. first pressure block; 56. second pressure block; 57. third pressure block; 58. fourth pressure block; 59. fifth pressure block; 6. rotating shaft; 61. connecting shaft; 62. eccentric block; 7. driving motor; 8. bottom plate. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples of the specification. The following examples are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] like Figure 1-Figure 8 As shown, the present embodiment proposes a motor housing compression test bench, comprising a test bench 1, a base plate 8 is fixedly installed at the bottom of the test bench 1, a connecting structure 3 is slidably sleeved on the left and right sides of the test bench 1, a first electric push rod 2 is installed on both sides of the test bench 1, the first electric push rod 2 is fixedly connected to the connecting structure 3, a clamping structure 4 is fixedly installed in the middle of the connecting structure 3, an extrusion structure 5 is installed on the front and rear sides of the test bench 1, a rotating shaft 6 is arranged on the outer side of the extrusion structure 5, both ends of the rotating shaft 6 are installed on the connecting structure 3, and a driving motor 7 is fixedly installed on one end of the rotating shaft 6.

[0030] The connecting structure 3 includes a connecting plate 31, connecting holes 32 are opened on both sides of the connecting plate 31, a rack 33 is installed on one side of the connecting plate 31, and the rack 33 is fixedly connected to the test bench 1. The connecting plate 31 is connected to the first electric push rod 2 to drive the clamping structure 4 and the motor housing to move up and down. The connecting hole 32 is connected to the rotating shaft 6, so that the rotating shaft 6 squeezes the connecting blocks 53 at different positions as the connecting structure 3 moves. The rack 33 is fixedly installed on the test bench 1, so that when the connecting plate 31 moves up and down, the clamping structure 4 and the rack 33 rotate relative to each other.

[0031] The clamping structure 4 includes a rotating table 42, which is sleeved in the middle of the connecting plate 31. A gear 41 is installed on the outer end of the rotating table 42, and the gear 41 is meshed with the rack 33. A pressing plate 43 is arranged on the inner side of the rotating table 42. A second electric push rod 44 is connected between the rotating table 42 and the pressing plate 43. A connecting rod 45 is fixedly connected to the middle of the pressing plate 43. A plurality of spring telescopic tubes 46 are installed around the connecting rod 45. A test probe 47 is fixedly installed at the end of the spring telescopic tube 46. The gear 41 is meshed with the rack 33. When the connecting structure 3 drives the clamping structure 4 to move up and down, the gear 41 rotates along the rack 33, driving the motor housing to reverse, so that the test position of the motor housing and the extrusion structure 5 is adjusted, thereby performing compression tests with different contact modes on different positions of the motor housing, and the connecting rod 45 installed on the pressure plate 43 penetrates into the interior of the motor housing, pressing the test probe 47 on the inner wall of the motor housing, and detecting the stress condition of the inner wall when the motor housing is squeezed, so that the deformation of the motor housing can be tested more intuitively.

[0032] The extrusion structure 5 includes a fixing frame 51, the upper and lower ends of the fixing frame 51 are fixedly mounted on the test bench 1, five connecting blocks 53 are inserted in the middle of the fixing frame 51, a telescopic slot 54 is provided in the middle of the connecting block 53, the top ends of the five connecting blocks 53 are respectively connected with a first pressing block 55, a second pressing block 56, a third pressing block 57, a fourth pressing block 58 and a fifth pressing block 59 of different shapes, and a compression spring 52 is connected between the fixing frame 51 and the connecting block 53, and a pair of connecting blocks 53 are installed on the fixing frame 51, and different shapes are respectively set to perform a compression test on the motor housing, so as to facilitate more accurate testing of the motor housing.

[0033] There are two extrusion structures 5, which are symmetrically clamped on both sides of the motor housing. The two extrusion structures 5 apply pressure from both sides of the motor housing at the same time, so that the motor housing is subjected to uniform pressure, avoiding errors when testing the motor housing.

[0034] The rotating shaft 6 includes a connecting shaft 61, both ends of which are installed on the connecting hole 32, and an eccentric block 62 is fixedly installed in the middle of the connecting shaft 61. The driving motor 7 drives the connecting shaft 61 and the eccentric block 62 to rotate, so that the eccentric block 62 rotates, pressurizes the extrusion structure 5, and makes the connecting block 53 squeeze the motor housing, so as to facilitate the pressure resistance test of the motor housing.

[0035] The width of the eccentric block 62 is consistent with the width of the extrusion structure 5, and the eccentric block 62 is oval in shape, and the eccentric block 62 is in contact with the surface of the connecting block 53. When the eccentric block 62 rotates, the extrusion force on the extrusion structure 5 is gradually increased, so that the pressure applied by the connecting block 53 on the motor housing becomes greater and greater, which is convenient for detecting the motor housing, and the rotating shaft 6 moves up and down with the connecting structure 3 and the motor housing, squeezing the connecting blocks 53 at different positions, so that the motor housing is subjected to compression tests of different shapes, different contact areas, and different positions to meet different testing requirements.

[0036] There are two clamping structures 4, and two pressure plates 43 are clamped at both ends of the motor housing and remain coaxial with the motor housing. The pressure plates 43 clamp and fix the two ends of the motor housing, and the connecting rod 45 installed in the middle of the pressure plate 43 penetrates into the interior of the motor housing, and monitors the inner wall of the motor housing through the spring telescopic tube 46 and the test probe 47 to determine whether the motor housing is deformed or damaged when it is squeezed by the outside world, thereby detecting the protective effect of the motor housing on internal parts.

[0037] Specifically, when the motor housing compression test bench is in use: the first electric push rod 2 pulls the connecting structures 3 on both sides downward to the bottom along the test bench 1, and clamps the motor housing in the middle of the two clamping structures 4 at the bottom position of the test bench 1, so that the pressure plate 43 clamps and fixes the ends of the motor housing, and at the same time, the connecting rod 45 penetrates into the interior of the motor housing, and the test probe 47 presses on the inner wall of the motor housing to monitor the motor housing. Then the first electric push rod 2 drives the two connecting structures 3 to move upward, so that the clamping structure 4 on the connecting structure 3 moves upward together with the motor housing. While moving, the gear 41 engages with the rack 33 to rotate the clamping structure 4, driving the motor housing to reverse. When the clamping structure 4 moves to the middle of the extrusion structure 5 After the part, the driving motor 7 connected to the connecting structure 3 drives the rotating shaft 6 to rotate, and the extrusion structure 5 is squeezed by the rotating shaft 6 to squeeze the motor housing, so that the motor housing completes the compression test. At the same time, as the connecting structure 3 continues to rise and changes its position, it is tested with the first pressure block 55, the second pressure block 56, the third pressure block 57, the fourth pressure block 58 and the fifth pressure block 59 respectively, and is squeezed on the motor housing as it passes, so that the motor housing is subjected to compression tests of different shapes, different contact areas, and different positions to meet different test requirements. The deformation of the inner wall of the motor housing is monitored by the test probe 47 to monitor the compression effect of the motor housing. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0038] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A motor housing compression test bench, comprising a test bench (1), a bottom plate (8) being fixedly mounted on the bottom of the test bench (1), characterized in that: The left and right sides of the test bench (1) are slidably sleeved with a connecting structure (3), both sides of the test bench (1) are equipped with a first electric push rod (2), the first electric push rod (2) is fixedly connected to the connecting structure (3), a clamping structure (4) is fixedly installed in the middle of the connecting structure (3), and the front and rear sides of the test bench (1) are equipped with an extrusion structure (5), the outer side of the extrusion structure (5) is provided with a rotating shaft (6), both ends of the rotating shaft (6) are installed on the connecting structure (3), and one end of the rotating shaft (6) is fixedly installed with a driving motor (7); The connection structure (3) comprises a connection plate (31), connection holes (32) are provided on both sides of the connection plate (31), a rack (33) is installed on one side of the connection plate (31), and the rack (33) is fixedly connected to the test bench (1); The clamping structure (4) comprises a rotating table (42), the rotating table (42) being sleeved on the middle part of the connecting plate (31), a gear (41) being mounted on the outer end of the rotating table (42), the gear (41) being meshed with the rack (33), a pressing plate (43) being arranged on the inner side of the rotating table (42), a second electric push rod (44) being connected between the rotating table (42) and the pressing plate (43), a connecting rod (45) being fixedly connected to the middle part of the pressing plate (43), a plurality of spring telescopic tubes (46) being mounted around the connecting rod (45), and a test probe (47) being fixedly mounted at the end of the spring telescopic tube (46); The extrusion structure (5) comprises a fixing frame (51), the upper and lower ends of the fixing frame (51) are fixedly mounted on the test bench (1), five connecting blocks (53) are inserted and installed in the middle of the fixing frame (51), a telescopic slot (54) is provided in the middle of the connecting block (53), the top ends of the five connecting blocks (53) are respectively connected to a first pressing block (55), a second pressing block (56), a third pressing block (57), a fourth pressing block (58) and a fifth pressing block (59) of different shapes, and a compression spring (52) is connected between the fixing frame (51) and the connecting block (53); The rotating shaft (6) comprises a connecting shaft (61), both ends of the connecting shaft (61) are mounted on the connecting hole (32), and an eccentric block (62) is fixedly mounted in the middle of the connecting shaft (61).

2. The motor housing compression test bench according to claim 1, characterized in that: The number of the extrusion structures (5) is two, and the two extrusion structures (5) are symmetrically clamped on two sides of the motor housing.

3. The motor housing compression test bench according to claim 1, characterized in that: The width of the eccentric block (62) is consistent with the width of the extrusion structure (5), the eccentric block (62) is oval-shaped, and the eccentric block (62) is in abutting contact with the surface of the connecting block (53).

4. The motor housing compression test bench according to claim 1, characterized in that: The number of the clamping structures (4) is two, and the two pressing plates (43) are clamped at two ends of the motor housing and remain coaxial with the motor housing.

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