Dynamic balancing machine for detecting axle hub brake drum assembly

Abstract

The utility model provides a dynamic balancing machine for detecting an axle hub brake drum assembly, comprising a machine body, the machine body is provided with a balance detection tool, the balance detection tool comprises a pull rod, and the balance detection tool is provided with the axle hub brake drum assembly; the rotating part is arranged on the machine body and is connected with the balance detection tool; the detection mechanism is mounted on the machine body in a sliding manner; the lifting transmission mechanism is installed on the machine body and connected with the detection mechanism, the lifting transmission mechanism drives the detection mechanism and the rotating component to do lifting motion under the action of the driving force, and the detection mechanism drives the balance detection tool on the rotating component to rotate. And the detection mechanism detects the unbalance vibration amplitude of the axle hub brake drum assembly on the balance detection tool, so that the unbalance vibration amplitude of the axle hub brake drum assembly can be automatically and rapidly detected, the detection efficiency is greatly improved, the operation is simple, and the structure is compact.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel hub testing technology, and in particular to a dynamic balancing machine for testing axle wheel hub brake drum assemblies. Background Technology

[0002] The dynamic balancing inspection machine is primarily designed for online inspection of brake disc assemblies and brake drum assemblies. Through assembly line production, it improves production efficiency and ensures a high pass rate. Online dynamic balancing inspection is integrated into the production line, eliminating the need for robots to repeatedly move workpieces, resulting in a simpler, more compact line structure and lower equipment investment costs.

[0003] However, most existing dynamic balancing machines are fixedly installed on counters. During use, the workpieces (brake disc assemblies, brake drum assemblies) need to be moved to the dynamic balancing machine for testing. Sometimes, in order to complete the testing smoothly, the position of the dynamic balancing machine needs to be moved and adjusted manually multiple times. This method is inefficient and very inconvenient to use.

[0004] Therefore, it is necessary to provide a dynamic balancing machine for testing axle wheel hub brake drum assemblies to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a dynamic balancing machine for testing axle wheel hub brake drum assemblies. It can automatically and quickly detect the magnitude of unbalanced vibration in axle wheel hub brake drum assemblies, greatly improving testing efficiency. It is also simple to operate and has a compact structure.

[0006] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a dynamic balancing machine for testing axle wheel hub brake drum assemblies, comprising:

[0007] The machine body, on which a balance testing fixture is installed, the balance testing fixture includes a tie rod, and the balance testing fixture is equipped with an axle wheel hub brake drum assembly;

[0008] A rotating component, which is mounted on the machine body and connected to a balance detection fixture;

[0009] The testing mechanism is slidably mounted on one side of the machine body;

[0010] A lifting transmission mechanism is installed on the machine body and connected to the detection mechanism. Under the action of driving force, the lifting transmission mechanism drives the detection mechanism and the rotating component to move up and down. The detection mechanism drives the balancing detection fixture on the rotating component to rotate, and the detection mechanism detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly on the balancing detection fixture.

[0011] Preferably, the rotating component includes: an outer shell, wherein the outer shell has a central hole;

[0012] The spindle has a tie rod sleeve inside it. The balance detection fixture passes through the mounting hole, and the lower half of the tie rod of the balance detection fixture is inserted into the tie rod sleeve. A gear is provided at the bottom of the spindle. The spindle is inserted into the center hole of the housing and can rotate within the center hole.

[0013] The first pneumatic component passes through a gear and connects to a tie rod sleeve inside the main shaft. The first pneumatic component drives the tie rod sleeve to slide up and down inside the main shaft.

[0014] Preferably, the rotating component further includes a fixed base, which is fixedly installed to the bottom of the outer casing, and the first pneumatic component is mounted on the fixed base.

[0015] Preferably, the testing mechanism includes: a swing frame base, which is slidably mounted on one side of the frame of the machine body, and a side plate is provided on one side of the swing frame base, the side plate being fixedly mounted to the side wall of the outer shell, and a fixing bracket is provided on the other side of the swing frame base;

[0016] A detection assembly, which is mounted on a side plate and distributed close to the main shaft;

[0017] A power component is mounted on a fixed mounting bracket, and the rotating shaft of the power component drives the gear on the main shaft to rotate via a belt.

[0018] Preferably, a guide rail is provided on one side of the frame of the machine body, and a slider is provided on the swing frame seat, the slider being slidably mounted on the guide rail.

[0019] Preferably, the detection assembly includes a mounting rod that is inserted through the side plate and passes through the sensor mounting base;

[0020] A sensor mounting base is installed on the side wall of the side plate;

[0021] A vibration sensor, wherein the vibration sensor is mounted on a sensor mounting base;

[0022] An elastic element is fitted onto the mounting rod.

[0023] Preferably, the lifting transmission mechanism includes: a mounting base, which is mounted on the frame of the machine body;

[0024] A transmission component is provided, with a nut fitted on it. The transmission component is rotatably mounted in a mounting base, and the nut on the transmission component is connected to the swing frame base.

[0025] Preferably, the dynamic balancing machine for balance detection further includes a driving component, one end of which is provided with a driven wheel. The driving component is mounted on the machine body and connected to the driven wheel on the driving component via a second belt. The driving component drives the driven wheel and the driving component to rotate via the second belt.

[0026] Preferably, the dynamic balancing machine for balance detection further includes a blocking mechanism, the blocking mechanism comprising:

[0027] A cylinder mounting plate is fixedly installed on the top of the machine body;

[0028] A blocking cylinder is mounted on a cylinder mounting plate.

[0029] Preferably, the dynamic balancing machine for balance detection further includes a positioning mechanism, which includes a base plate mounted on the top of the machine body.

[0030] The second pneumatic component is mounted on the base plate;

[0031] The pallet is located directly above the base plate and connected to the second pneumatic component. The pallet is equipped with a positioning pin, and the second pneumatic component can drive the pallet to move up and down.

[0032] Compared with existing technologies, the advantages are that the lifting transmission mechanism drives the detection mechanism and rotating parts to move up and down under the action of driving force, adjusting the detection mechanism and rotating parts to a suitable height. The detection mechanism drives the balancing detection fixture on the rotating parts to rotate, and the detection mechanism automatically and quickly detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly on the balancing detection fixture, which greatly improves the detection efficiency, and is simple to operate and has a compact structure.

[0033] Other features and advantages of this invention will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the invention. The features and advantages of this invention may be realized and obtained by means of the elements and combinations specifically pointed out in the appended claims. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram illustrating the use of the dynamic balancing machine for testing the axle wheel hub brake drum assembly provided by this utility model.

[0036] Figure 2 for Figure 1 The diagram shows the structure of the machine.

[0037] Figure 3 This diagram shows the combination of rotating components and testing mechanism of a dynamic balancing machine used to test the axle, wheel hub, and brake drum assembly.

[0038] Figure 4 A schematic diagram of the combination of rotating components and testing mechanism of a dynamic balancing machine for testing axle wheel hub brake drum assemblies.

[0039] Figure 5 for Figure 3 The diagram shows the combination of the testing mechanism, lifting components, and drive components of the dynamic balancing machine for testing the axle wheel hub brake drum assembly.

[0040] Figure 6 for Figure 1 The diagram shows the structural design of the balancing testing fixture for the dynamic balancing machine used to test the axle, wheel hub, and brake drum assembly.

[0041] Figure 7 for Figure 6 The diagram shows the usage of the balance detection fixture.

[0042] Figure 8 for Figure 1 The diagram shown is an installation schematic of the blocking mechanism of a dynamic balancing machine used to test the axle wheel hub brake drum assembly.

[0043] Figure 9 for Figure 8 The diagram shows the structure of the blocking cylinder.

[0044] Figure 10 for Figure 1 The diagram shown is an installation schematic of the positioning mechanism of a dynamic balancing machine for testing the axle wheel hub brake drum assembly.

[0045] Figure 11 for Figure 1 The diagram shows the installation of tooling components for testing the axle wheel hub brake drum assembly.

[0046] Reference numerals: 1. Machine body; 11. Machine base; 12. Machine frame; 121. Mounting hole; 122. Guide rail; 2. Balance detection fixture; 20. Tie rod; 21. Outer cylinder; 22. Conical sleeve; 23. Variable diameter sleeve; 24. Upper positioning cone block; 25. Lower positioning cone block; 26. Limiting component; 3. Axle wheel hub brake drum assembly; 4. Rotating component; 41. Outer shell; 42. Center hole; 43. Main shaft; 44. Tie rod sleeve; 45. Gear; 46. First pneumatic component; 47. Fixed seat; 5. Detection mechanism; 51. Swing frame seat; 511. Slider; 52. Side plate; 53. Fixed bracket; 54. Detection component; 541. Mounting rod; 542. Sensor fixing seat; 543. Vibration sensor; 544. Elasticity Components; 55. Power component; 56. Belt 1; 6. Lifting transmission mechanism; 61. Mounting base; 62. Transmission component; 63. Driven wheel; 7. Driving component; 71. Belt 2; 8. Blocking mechanism; 81. Cylinder mounting plate; 82. Blocking cylinder; 821. Cylinder body; 822. Fixed block; 823. Movable block; 824. Roller; 9. Positioning mechanism; 91. Base plate; 92. Second pneumatic component; 93. Support plate; 94. Positioning pin; 95. Guide component; 10. Tooling component; 101. Tooling plate; 102. Positioning sleeve; 103. Heightening mechanism; 104. Positioning ring; 105. Guide wheel; 106. Anti-collision block; 107. First mounting plate; 108. Second mounting plate; 109. Heightening column. Detailed Implementation

[0047] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0048] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0050] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. Additionally, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0051] Please see Figures 1 to 11 This utility model provides a dynamic balancing machine for testing the brake drum assembly of axle wheel hub, comprising:

[0052] The machine body 1 is equipped with a balance detection fixture 2, which includes a tie rod 20 and an axle wheel hub brake drum assembly 3 is mounted on the balance detection fixture 2.

[0053] Rotating component 4, which is mounted on the machine body 1 and connected to the balance detection fixture 2;

[0054] The detection mechanism 5 is slidably mounted on one side of the body 1;

[0055] The lifting transmission mechanism 6 is installed on the machine body 1 and connected to the detection mechanism 5. Under the action of the driving force, the lifting transmission mechanism 6 drives the detection mechanism 5 and the rotating component 4 to move up and down. The detection mechanism 5 drives the balance detection fixture 2 on the rotating component 4 to rotate, and the detection mechanism 5 detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly 3 on the balance detection fixture 2.

[0056] In a preferred embodiment, the machine body 1 includes a base 11 and a hollowed-out frame 12. The frame 12 has mounting holes 121 and is mounted on the base 11. The base 11 is placed on the ground and distributed close to a conveyor line (such as an assembly line on a production line). The workpiece (axle wheel hub brake drum assembly 3) is conveyed to a position close to the frame 12 by the conveyor line.

[0057] In a preferred embodiment, the rotating component 4 includes: a housing 41, on which a central hole 42 is provided, the central hole 42 being coaxially disposed with the mounting hole 121;

[0058] The main shaft 43 has a tie rod sleeve 44 inside it. The balance detection fixture 2 passes through the mounting hole 121, and the lower half of the tie rod 20 of the balance detection fixture 2 is inserted into the tie rod sleeve 44. The bottom of the main shaft 43 is provided with a gear 45. The main shaft 43 is inserted into the center hole 42 of the outer casing 41, and the main shaft 43 can rotate within the center hole 42.

[0059] The first pneumatic component 46 passes through the gear 45 and connects to the tie rod sleeve 44 inside the main shaft 43. The first pneumatic component 46 drives the tie rod sleeve 44 to slide up and down inside the main shaft 43. At this time, the tie rod 20 of the balance detection fixture 2 also moves up and down under the action of the tie rod sleeve 44. It should be noted that the gear 45 can be a synchronous belt pulley, and the first pneumatic component 46 can be a cylinder.

[0060] In a preferred embodiment, the rotating component 4 further includes a fixed base 47, which is fixedly installed to the bottom of the outer casing 41, and the first pneumatic component 46 is mounted on the fixed base 47. By providing the fixed base 47 on the outer casing 41, the first pneumatic component 46 can be easily fixedly installed, preventing the first pneumatic component 46 from becoming loose.

[0061] In a preferred embodiment, the detection mechanism 5 includes: a swing frame base 51, which is slidably mounted on one side of the frame 12 of the machine body 1, and a side plate 52 is provided on one side of the swing frame base 51. The side plate 52 is fixedly mounted to the side wall of the outer shell 41, and a fixing bracket 53 is provided on the other side of the swing frame base 51.

[0062] Detection component 54, which is mounted on side plate 52 and distributed near main shaft 43;

[0063] The power component 55 is mounted on the fixed bracket 53, and the rotating shaft of the power component 55 drives the gear 45 on the main shaft 43 to rotate through the belt 56, so that the main shaft 43 rotates in the center hole 42 of the outer shell 41. At this time, the balance detection fixture 2 rotates synchronously under the drive of the tie rod sleeve 44 in the main shaft 43. The detection component 54 is used to detect the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly 3 on the balance detection fixture 2.

[0064] It should be noted that in this embodiment, the power component 55 is a servo motor, and a transmission wheel is provided on the shaft of the servo motor. A belt 56 is sleeved on the transmission wheel and the gear 45.

[0065] In a preferred embodiment, a guide rail 122 is provided on one side of the frame 12 of the machine body 1, and a slider 511 is provided on the swing frame base 51. The slider 511 is slidably mounted on the guide rail 122. In this way, the slider 511 is slidably mounted on the guide rail 122, which facilitates the smooth up-and-down sliding of the detection mechanism 5 along the guide rail 122 to adjust the height of the detection mechanism 5 and the rotating component 4.

[0066] In a preferred embodiment, the detection component 54 includes a mounting rod 541, which is inserted through the side plate 52 and passes through the sensor mounting base 542;

[0067] Sensor mounting base 542, the sensor mounting base 542 is mounted on the side wall of side plate 52;

[0068] Vibration sensor 543, which is mounted on sensor mounting base 542;

[0069] Elastic element 544 is sleeved on mounting rod 541.

[0070] When the vibration sensor 543 is used for detection, the pull rod 20 of the balance detection fixture 2 needs to be inserted into the pull rod sleeve 44 and connected to the telescopic shaft of the first pneumatic component 46 beforehand. The telescopic shaft of the first pneumatic component 46 pulls the pull rod 20 of the balance detection fixture 2 downward to clamp the axle wheel hub brake drum assembly 3 on the balance detection fixture 2. The power component 55 drives the gear 45 on the main shaft 43 to rotate through the belt 56, so that the main shaft 43 rotates inside the outer shell 41. At this time, the balance detection fixture 2 rotates with the main shaft 43. The vibration sensor 543 detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly 3 on the balance detection fixture 2 and converts it into an electrical signal, which is transmitted to the control terminal (such as an industrial computer, control panel, etc.).

[0071] After the vibration sensor 543 completes the detection, the pull rod 20 of the balance detection fixture 2 is lifted by the telescopic shaft of the first pneumatic component 46, which releases the axle wheel hub brake drum assembly 3 on the balance detection fixture 2.

[0072] In a preferred embodiment, the lifting transmission mechanism 6 includes: a mounting base 61, which is mounted on the frame 12 of the body 1;

[0073] A transmission component 62 is fitted with a nut. The transmission component 62 is rotatably mounted within the mounting base 61, and the nut on the transmission component 62 is connected to the swing frame base 51. It should be noted that, in this embodiment, the transmission component 62 is a ball screw. When the ball screw rotates under the action of driving force, the nut moves up and down along the ball screw, thereby driving the detection mechanism 5 to move up and down.

[0074] In a preferred embodiment, the dynamic balancing machine for balance detection further includes a drive component 7. One end of the transmission component 62 is provided with a driven wheel 63. The drive component 7 is mounted on the base of the machine body 1 and connected to the driven wheel 63 on the transmission component 62 via a second belt 71. The drive component 7 drives the driven wheel 63 and the transmission component 62 to rotate via the second belt 71. Under the action of the driving force, the transmission component 62 drives the detection mechanism 5 and the rotating component 4 to move up and down.

[0075] Specifically, when the driving member 7 drives the driven wheel 63 and the transmission member 62 to rotate in the first direction via the second belt 71, the transmission member 62 drives the detection mechanism 5 and the rotating component 4 to move upward under the action of the driving force; when the driving member 7 drives the driven wheel 63 and the transmission member 62 to rotate in the second direction via the second belt 71, the transmission member 62 drives the detection mechanism 5 and the rotating component 4 to move downward under the action of the driving force.

[0076] In a preferred embodiment, the balance detection fixture 2 further includes: an outer cylinder 21, a cone sleeve 22, a variable diameter sleeve 23, an upper positioning cone block 24, a lower positioning cone block 25, and a limiting component 26;

[0077] The conical sleeve 22 is installed at the top of the outer cylinder 21. The pull rod 20 is inserted and installed on the center line of the outer cylinder 21 and the conical sleeve 22 and is inserted in the pull rod sleeve 44 and connected to the telescopic shaft of the first pneumatic component 46. The pull rod 20 does not rotate in the outer cylinder 21 and the conical sleeve 22. The lower positioning cone block 25 is sleeved on the conical sleeve 22. The variable diameter sleeve 23 is sleeved on the top of the conical sleeve 22. The upper positioning cone block 24 is installed on the outer ring of the variable diameter sleeve 23. The limiting component 26 is installed on the top surface of the upper positioning cone block 24 and fixedly installed with the top of the pull rod 20 to prevent the upper positioning cone sleeve 22 from loosening.

[0078] In a preferred embodiment, the variable diameter sleeve 23 is generally a hollow cylinder, and the sidewall of the variable diameter sleeve 23 is provided with multiple grooves that divide the sidewall of the variable diameter sleeve 23 into multiple conical structures (e.g., Figure 1 (As shown).

[0079] When the variable diameter sleeve 23 is fitted onto the tapered sleeve 22 and moves downward, the tapered sleeve 22 gradually expands the multiple tapered structures of the variable diameter sleeve 23, increasing the inner diameter of the multiple tapered structures. The inner wall of the upper positioning cone block 24 will then be in close contact with the multiple tapered structures of the variable diameter sleeve 23, providing a tightening effect and thus achieving the function of tightening the upper positioning cone block 24 on the variable diameter sleeve 23. Conversely, when the variable diameter sleeve 23 is fitted onto the tapered sleeve 22 and moves upward, the tapered sleeve 22 gradually brings the multiple tapered structures of the variable diameter sleeve 23 closer together, decreasing the inner diameter of the multiple tapered structures. A gap will exist between the inner wall of the upper positioning cone block 24 and the multiple tapered structures of the variable diameter sleeve 23, facilitating the removal of the upper positioning cone block 24 from the variable diameter sleeve 23.

[0080] When installing the balance testing fixture 2, first disassemble the variable diameter sleeve 23, the upper positioning cone 24, and the limiting component 26. Then install the wheel hub brake drum assembly to be tested on the cone sleeve 22 of the balance testing fixture. Then install the variable diameter sleeve 23, the upper positioning cone 24, and the limiting component 26. When the pull rod 20 of the balance testing fixture 2 is pulled down by the telescopic shaft of the first pneumatic component 46, the upper positioning cone 24 of the balance testing fixture is located at the outer ring of the upper bearing of the wheel hub brake drum assembly and fits tightly with the outer ring of the upper bearing. The lower positioning cone 25 is located at the outer ring of the lower bearing of the wheel hub brake drum assembly and fits tightly with the outer ring of the lower bearing, thereby achieving the function of clamping the axle wheel hub brake drum assembly 3 on the balance testing fixture.

[0081] The main shaft 43 is driven to rotate in the center hole 42 of the outer shell 41 by the power component 55. At this time, the balance detection fixture 2 rotates synchronously under the drive of the tie rod sleeve 44 in the main shaft 43. The vibration sensor 543 detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly 3 on the balance detection fixture 2.

[0082] In a preferred embodiment, the dynamic balancing machine for balance detection further includes a blocking mechanism 8, which includes a cylinder mounting plate 81, which is fixedly mounted on the top of the frame 12 of the machine body 1.

[0083] A blocking cylinder 82 is mounted on a cylinder mounting plate 81.

[0084] In a preferred embodiment, the blocking cylinder 82 includes: a mounting block (rectangular flange) 820, which is mounted on the cylinder mounting plate 81;

[0085] The cylinder body 821 is inserted and installed on the cylinder mounting plate 81 and the mounting block 820, and the cylinder body 821 is fixedly installed on the mounting block 820.

[0086] Fixing block 822, which is mounted on mounting block and located on one side of piston rod of cylinder body 821;

[0087] The movable block 823 is rotatably mounted on the fixed block 822, and a roller 824 is rotatably mounted on the movable block 823. The piston rod of the cylinder body 821 can drive the movable block 823 to move on the fixed block 822.

[0088] It should be noted that, in this embodiment, the movable block 823 is roughly triangular in shape, the first corner of the movable block 823 is rotatably connected to the fixed block 822, a roller 824 is installed on the second corner of the movable block 823, and the piston rod can lift or lower the second corner of the movable block 823; the cylinder body is a cylinder.

[0089] In a preferred embodiment, the dynamic balancing machine for balance detection further includes a positioning mechanism 9, which includes a base plate 91 mounted on the top of the frame 12 of the machine body 1.

[0090] The second pneumatic component 92 is mounted on the base plate 91;

[0091] A support plate 93 is located directly above the base plate 91 and connected to a second pneumatic component 92. A positioning pin 94 is provided on the support plate 93. The second pneumatic component 92 can drive the support plate 93 to move up and down. It should be noted that in this embodiment, the second pneumatic component 92 is a lifting cylinder.

[0092] In a preferred embodiment, the positioning mechanism 9 further includes guide components 95, which include guide sleeves and guide rods. The guide sleeve is mounted on the base plate 91, and the guide rod is movably inserted within the guide sleeve and connected to the support plate 93. It should be noted that in this embodiment, there are four guide components 95, located at the four corners of the base plate 91, with their guide rods connected to the four corners of the support plate 93. Thus, during the lifting and lowering of the support plate 93, the guiding action of the guide components 95 prevents the support plate 93 from shifting position.

[0093] In a preferred embodiment, the dynamic balancing machine for balance detection further includes a tooling component 10, which includes a tooling plate 101, a positioning sleeve 102 corresponding to the positioning pin 94, the tooling plate 101 being detachably mounted on a support plate 93, and the positioning pin 94 being inserted into the positioning sleeve 102.

[0094] A heightening mechanism 103 is mounted on a tooling tray 101;

[0095] Positioning ring 104 is mounted on lifting mechanism 103; when the second pneumatic component 92 drives the pallet 93 to move upward, the positioning pin 94 on the pallet 93 is inserted into the positioning sleeve 102 to position the tooling plate 101 and prevent the tooling plate 101 from shifting position.

[0096] When the piston rod of the cylinder body 821 extends upward, it will lift the first triangle of the movable block 823, and the roller on the second corner of the movable block 823 will press against the tooling plate 101, locking the tooling plate 101 to prevent the detection tooling from moving upward and also to prevent the tooling plate 101 from shaking on the support plate 93; when the piston rod of the cylinder body 821 retracts downward, it will lower the first triangle of the movable block 823, and the roller on the second corner of the movable block 823 will release the tooling plate 101.

[0097] In a preferred embodiment, guide wheels 105 are rotatably provided at the four corners of the tooling tray 101, and anti-collision blocks 106 are provided on the side of the tooling plate to prevent other objects from directly impacting the tooling tray 101.

[0098] In a preferred embodiment, the heightening mechanism 103 includes a first mounting plate 107, a second mounting plate 108, and a heightening column 109. The first mounting plate 107 is fixedly mounted on the tooling plate 101, and the second mounting plate 108 is located above the first mounting plate 107. The heightening column 109 connects the first mounting plate 107 and the second mounting plate 108 to increase the height of the positioning ring 104 on the second mounting plate 108, so that the positioning ring 104 can contact the axle wheel hub brake drum assembly 3 to be tested.

[0099] Working principle:

[0100] The wheel hub brake drum assembly 3 to be tested is pre-installed on the cone sleeve 22 of the balance testing fixture, and the upper positioning cone block 24 of the balance testing fixture is located at the outer ring of the upper bearing of the wheel hub brake drum assembly 3 and is in close contact with the outer ring of the upper bearing, and the lower positioning cone block 25 is located at the outer ring of the lower bearing of the wheel hub brake drum assembly and is in close contact with the outer ring of the lower bearing.

[0101] The main shaft 43 is driven by the power component 55 to rotate in the center hole 42 of the outer shell 41. At this time, the balance detection fixture 2 rotates synchronously under the drive of the tie rod sleeve 44 in the main shaft 43. The vibration sensor 543 detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly 3 on the balance detection fixture 2 and converts it into an electrical signal to be transmitted to the control terminal (such as an industrial computer, control panel, etc.). During the detection process, no excessive manual intervention is required, the operation is convenient, and the test results are accurate.

[0102] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A dynamic balancing machine for testing axle wheel hub brake drum assemblies, characterized in that, include: The machine body (1) is equipped with a balance detection fixture (2), which includes a tie rod (20) and a wheel hub brake drum assembly (3) is installed on the balance detection fixture (2). Rotating component (4), which is mounted on the machine body (1) and connected to the balance detection fixture (2); The detection mechanism (5) is slidably mounted on one side of the body (1); The lifting transmission mechanism (6) is installed on the machine body (1) and connected to the detection mechanism (5). Under the action of the driving force, the lifting transmission mechanism (6) drives the detection mechanism (5) and the rotating component (4) to move up and down. The detection mechanism (5) drives the balance detection fixture (2) on the rotating component (4) to rotate. The detection mechanism (5) detects the magnitude of the unbalanced vibration of the axle wheel hub brake drum assembly (3) on the balance detection fixture (2).

2. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 1, characterized in that, The rotating component (4) includes: an outer shell (41) having a central hole (42) on it. The main shaft (43) is provided with a tie rod sleeve (44), the balance detection fixture (2) passes through the mounting hole (121), and the lower half of the tie rod (20) of the balance detection fixture (2) is inserted into the tie rod sleeve (44). The bottom of the main shaft (43) is provided with a gear (45), and the main shaft (43) is inserted into the center hole (42) of the outer shell (41), and the main shaft (43) can rotate within the center hole (42). The first pneumatic component (46) passes through the gear (45) and is connected to the tie rod sleeve (44) inside the main shaft (43). The first pneumatic component (46) drives the tie rod sleeve (44) to slide up and down inside the main shaft (43).

3. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 2, characterized in that, The rotating component (4) also includes a fixed seat (47), which is fixedly installed on the bottom of the outer shell (41), and the first pneumatic component (46) is installed on the fixed seat (47).

4. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 2, characterized in that, The testing mechanism (5) includes: a swing frame (51), which is slidably installed on one side of the frame (12) of the machine body (1), and a side plate (52) is provided on one side of the swing frame (51), which is fixedly installed on the side wall of the outer shell (41), and a fixing bracket (53) is provided on the other side of the swing frame (51). The detection component (54) is mounted on the side plate (52) and distributed near the main shaft (43); The power component (55) is mounted on the fixed bracket (53), and the shaft of the power component (55) drives the gear (45) on the main shaft (43) to rotate via belt (56).

5. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 4, characterized in that, A guide rail (122) is provided on one side of the frame (12) of the machine body (1), and a slider (511) is provided on the swing frame seat (51), and the slider (511) is slidably mounted on the guide rail (122).

6. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 4, characterized in that, The detection assembly (54) includes a mounting rod (541) which is inserted into the side plate (52) and passes through the sensor mounting base (542). Sensor mounting base (542), the sensor mounting base (542) is mounted on the side wall of the side plate (52); Vibration sensor (543), the vibration sensor (543) is mounted on sensor mounting base (542); An elastic element (544) is sleeved on the mounting rod (541).

7. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 1, characterized in that, The lifting transmission mechanism (6) includes: a mounting base (61), which is mounted on the frame (12) of the body (1); The transmission component (62) is fitted with a nut. The transmission component (62) is rotatably mounted in the mounting base (61), and the nut on the transmission component (62) is connected to the swing frame base (51).

8. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 7, characterized in that, The dynamic balancing machine for balance detection also includes a drive component (7). One end of the transmission component (62) is provided with a driven wheel (63). The drive component (7) is mounted on the machine body (1) and connected to the driven wheel (63) on the transmission component (62) via a second belt (71). The drive component (7) drives the driven wheel (63) and the transmission component (62) to rotate via the second belt (71).

9. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 1, characterized in that, The dynamic balancing machine for balance detection also includes a blocking mechanism (8), which includes: Cylinder mounting plate (81), the cylinder mounting plate (81) is fixedly mounted on the top of the machine body (1); A blocking cylinder (82) is mounted on a cylinder mounting plate (81).

10. The dynamic balancing machine for testing axle wheel hub brake drum assemblies as described in claim 1, characterized in that, The dynamic balancing machine for balance detection also includes a positioning mechanism (9), which includes a base plate (91) mounted on the top of the machine body (1). The second pneumatic component (92) is mounted on the base plate (91); The pallet (93) is located directly above the base plate (91) and connected to the second pneumatic component (92). The pallet (93) is provided with a positioning pin (94), and the second pneumatic component (92) can drive the pallet (93) to move up and down.

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