High separation ratio static couple separation floating table measuring device

Abstract

The present invention discloses a high separation ratio static-even separation floating platform measuring device. It comprises a measuring platform bottom plate, two groups of vibration sensor assemblies, a floating platform and two groups of spring rod and reed leaf assemblies; the floating platform is installed on the measuring platform bottom plate in a floating manner through the two groups of spring rod and reed leaf assemblies, and the two groups of vibration sensor assemblies are arranged vertically and orthogonally and fixed on the measuring platform bottom plate and connected to the bottom of the floating platform; the workpiece is installed on the top surface of the floating platform, and the workpiece is powered on and rotated to generate vibration, and the vibration is transmitted to the sensor measuring rods of the two groups of vibration sensor assemblies through the floating platform, thereby realizing the monitoring of the static unbalance and even unbalance of the workpiece. The vertical orthogonal design of the vibration sensor assembly of the present invention effectively realizes the separation of static and even balance, can limit the degree of freedom in the non-detection direction, greatly reduces interference, and improves the measurement accuracy.

Description

Technical Field

[0001] The invention relates to a balance quantity measuring device, in particular to a high separation ratio static-couple separation floating platform type measuring device. Background Art

[0002] The residual imbalance of automotive cooling fans and similar ultra-thin rotors (when the ratio of rotor diameter D to thickness H is 8 to 16 times) seriously affects the vibration and noise levels of the system, as well as the smoothness of operation. Chinese patent authorization number CN201909701U, invention titled "High Separation Ratio Static, Couple and Dynamic Balance Measurement Device," discloses a dynamic balance detection device for ultra-thin rotors that can simultaneously detect static and couple unbalanced forces. The invention specifically describes a vibration plate with a fixed seat corresponding to the outer periphery. The vibration plate is equipped with a flat torsion mechanism, a bending and swing mechanism, a horizontal tension and compression sensing mechanism, and a vertical tension and compression mechanism. The horizontal tension and compression rods in the horizontal tension and compression mechanism are equipped with a horizontal sensor, and the vertical tension and compression rods in the vertical tension and compression sensing mechanism are equipped with a vertical sensor. The horizontal and vertical sensors are respectively connected to a computer measurement and control system, achieving the purpose of correcting both static and couple unbalanced forces.

[0003] However, during the measurement process, there is interference from unbalance in non-measurement directions, which makes the measurement data inaccurate. Therefore, the prior art lacks a measuring device that can separate static and couple unbalance and has high detection accuracy. Summary of the Invention

[0004] In order to solve the problems existing in the background technology, the present invention proposes a high separation ratio static-couple separation floating table measuring device, which realizes the separation of static-couple unbalance, avoids the interference of unbalance in non-measurement directions during the measurement process, and makes the measurement data accurate.

[0005] The technical solution adopted in the present invention is:

[0006] The present invention comprises a measuring platform base plate, two groups of vibration sensor assemblies, a floating platform and two groups of spring rod and reed assemblies; the floating platform is floatingly mounted on the measuring platform base plate via the two groups of spring rod and reed assemblies, and the two groups of vibration sensor assemblies are vertically and orthogonally arranged and fixed on the measuring platform base plate and connected to the bottom of the floating platform; a workpiece is mounted on the top surface of the floating platform, and the workpiece is energized and rotated to generate vibration, and the vibration is transmitted to the sensor measuring rods of the two groups of vibration sensor assemblies through the floating platform, thereby realizing the monitoring of the static unbalance and the even unbalance of the workpiece.

[0007] The two groups of spring rod and spring leaf assemblies have the same structure and are symmetrically arranged and connected between the top surface of the measuring platform bottom plate and the bottom surface of the floating platform; each spring rod and spring leaf assembly includes two spring rod bases arranged vertically, a middle spring leaf and two spring rods; the two spring rod bases can be rod-shaped but not limited to this, one spring rod base is located directly above the other spring rod base and is arranged parallel to each other vertically, one spring rod base is fixed to the top surface of the measuring platform bottom plate, and the other spring rod base is located and fixed to the bottom surface of the floating platform; the middle spring leaf is supported and connected between the middle parts of the two spring rod bases, and a spring rod is supported and connected between each end of the two spring rod bases, and the middle spring leaf is a long strip plate, so that the two spring rods and the middle spring leaf support the upper and lower spring rod bases.

[0008] The middle spring piece is fixed at both ends on the two spring rod bases through a spring piece pressure plate. The middle spring piece is perpendicular to the two spring rod bases, and the plane of the middle spring piece is perpendicular to the plane formed by the two spring rod bases.

[0009] The two spring rods are fixed to the ends of the spring rod base via the spring rod pressing blocks F5.

[0010] The two groups of vibration sensor assemblies have the same structure and both include a vibration sensor mounting plate, a vibration sensor, a measuring rod pressure plate and a measuring rod mounting block; the vibration sensor is fixed to the bottom plate of the measuring platform through the sensor mounting plate, the sensor measuring rod of the vibration sensor is arranged horizontally and is pressed onto the bottom of the measuring rod mounting block through the measuring rod pressure plate, and the top of the measuring rod mounting block is fixed to the floating platform; the sensor measuring rods of the vibration sensors of the two groups of vibration sensor assemblies are arranged in perpendicular directions, the sensor measuring rod of one vibration sensor assembly is perpendicular to the plane of the middle spring piece, so as to monitor the static imbalance of the floating platform; the measuring rod of the other vibration sensor assembly is parallel to the plane of the middle spring piece, so as to monitor the couple imbalance of the floating platform.

[0011] Only the connection of the measuring rod to the floating platform and the specific arrangement direction of the measuring rod relative to the spring are necessary, and other parts used to install the sensor can be changed.

[0012] The workpiece is fixed on the floating platform and is fixedly installed by an automatic plug-in component and left and right fixtures, and the axis of the workpiece rotating body is installed horizontally and parallel to the plane of the middle spring piece.

[0013] A floating platform locking cylinder assembly for lifting the floating platform to make it stationary is also arranged between the bottom plate of the measuring platform and both sides of the floating platform. The floating platform locking cylinder assembly includes a cylinder mounting plate, a cylinder, a cylinder top cone and a floating platform fixed top cone; the cylinder is fixedly mounted on the bottom plate of the measuring platform through the cylinder mounting plate, and the top of the cylinder push rod is fixedly mounted and connected to the cylinder top cone. The top surface of the cylinder top cone is composed of two triangular inclined surfaces. The floating platform fixed top cone is mounted on the bottom surface of the floating platform. The bottom surface of the floating platform fixed top cone is provided with a V-shaped groove that matches the two inclined surfaces of the cylinder top cone, so that the cylinder top cone is embedded in the V-shaped groove.

[0014] A measuring platform transport fixing plate is also arranged between the measuring platform bottom plate and both sides of the floating platform for fixing the two. The upper end of the measuring platform transport fixing plate is fixed to the measuring platform bottom plate by bolts, and the lower end of the measuring platform transport fixing plate is fixed to the floating platform by bolts. The measuring platform transport fixing plate is only installed during the transportation of the floating platform measuring device.

[0015] The beneficial effects of this invention are:

[0016] The spring rod and spring leaf assembly device of the present invention can limit the degree of freedom in the non-detection direction and greatly reduce interference.

[0017] The vertical orthogonal design of the vibration sensor assembly of the present invention effectively realizes the separation of static and couple balances and improves the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the layout of the workpiece and tooling of the present invention.

[0019] Figure 2 It is an overall assembly drawing of the workpiece and tooling of the present invention.

[0020] Figure 3 It is an exploded view of the overall installation of the present invention.

[0021] Figure 4 It is an overall assembly drawing of the present invention.

[0022] Figure 5 It is a transparent top view of the present invention as a whole.

[0023] Figure 6 It is an overall assembly diagram of the spring rod and spring assembly of the present invention.

[0024] Figure 7 This is an overall assembly diagram of the vibration sensor component of the present invention.

[0025] Figure 8 This is the overall assembly drawing of the floating platform locking cylinder assembly of the present invention.

[0026] In the figure: A0: measuring table base plate; B0.1, B0.2: vibration sensor assembly, B1: sensor mounting plate, B2: vibration sensor, B3: measuring rod pressure plate, B4: measuring rod mounting block; C0.1, C0.2: measuring table transport fixing plate; D0: floating table; E0.1, E0.2: floating table locking cylinder assembly, E1: cylinder mounting plate, E2: cylinder, E3: cylinder top cone, E4: floating table fixed top cone; F0.1, F0.2: spring rod and reed assembly, F1: spring rod base, F2: middle reed, F4: two spring rods, F3: reed pressure plate, F5: spring rod pressure block; H0: automatic plug-in assembly; G0.1, G0.2: left and right fixtures; I0: workpiece. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific implementations.

[0028] like Figures 1 to 5 As shown, the specific implementation of the present invention includes a measuring platform base plate A0, two groups of vibration sensor assemblies B0.1 and B0.2, a floating platform D0 and two groups of spring rod and reed assemblies F0.1 and F0.2; the floating platform D0 is floatingly mounted on the measuring platform base plate A0 via the two groups of spring rod and reed assemblies F0.1 and F0.2, and the two groups of vibration sensor assemblies B0.1 and B0.2 are vertically and orthogonally arranged and fixed on the measuring platform base plate A0 and connected to the bottom of the floating platform D0; a workpiece I0 is mounted on the top surface of the floating platform D0, and the workpiece I0 is powered on and rotates to generate vibration. The vibration is transmitted to the sensor measuring rods of the two groups of vibration sensor assemblies B0.1 and B0.2 through the floating platform D0, thereby realizing the monitoring of the static unbalance and even unbalance of the workpiece I0.

[0029] like Figure 6 As shown, the two sets of spring rod and spring leaf assemblies F0.1 and F0.2 have the same structure and are symmetrically arranged and connected between the top surface of the measuring platform base plate A0 and the bottom surface of the floating platform D0; each spring rod and spring leaf assembly F0.1 and F0.2 includes two spring rod bases F1 arranged vertically, a middle spring leaf F2 and two spring rods F4; the two spring rod bases F1 are rod-shaped, one spring rod base F1 is located directly above the other spring rod base F1 and is arranged parallel to each other vertically, and the other spring rod base F1 is fixed to the top of the measuring platform base plate A0. The other spring rod base F1 is located on the bottom surface of the floating platform D0, and the two spring rod bases F1 are fixed to the measuring platform bottom plate A0 and the floating platform D0 respectively. The middle spring leaf F2 is supported and connected between the middle parts of the two spring rod bases F1, and a spring rod F4 is supported and connected between each end of the two spring rod bases F1. The middle spring leaf F2 is a long strip plate, and the spring rod F4 is a spring cylinder with thick ends and a thin middle, so that the two spring rods F4 and the middle spring leaf F2 support the upper and lower spring rod bases F1.

[0030] The middle spring F2 is fixed at both ends to the two spring rod bases F1 through the spring pressure plate F3. The middle spring F2 is perpendicular to the two spring rod bases F1, that is, the middle spring F2 is installed vertically so that the two spring rod bases F1 are arranged parallel to each other, and the plane of the middle spring F2 is perpendicular to the plane formed by the two spring rod bases F1.

[0031] In practice, the center spring F2 is a thin, long plate made of a highly elastic metal material, preferably spring steel. It acts as a spring in the vibration system. Its rigidity is relatively weak in the direction perpendicular to the plane of the center spring F2, allowing a certain degree of swing in this direction, which is the direction of static balance detection. Its rigidity is relatively strong in the direction parallel to the plane of the center spring F2, thus suppressing swing in this direction. When subjected to force, the center spring F2 can twist in the horizontal plane, without restricting the transmission of the even unbalance. This twisting direction is used for even unbalance measurement. The center spring F2 limits the degrees of freedom of the spring-bar-and-spring assembly F0.1 and F0.2 in the directions of non-static unbalance and even unbalance detection.

[0032] The two spring rods F4 are fixed to the ends of the spring rod base F1 through the spring rod pressing blocks F5.

[0033] In a specific implementation, the spring rod F4 is in the form of a spring cylinder with thick ends and a slender middle. It is made of a metal material with good elasticity, such as spring steel, to form a slender cylindrical part. This not only makes it easy to fix on the spring rod base F1, but also the slender spring cylinder in the middle acts as a spring in the vibration system, and it is basically homogeneous in all horizontal directions in the vibration system.

[0034] like Figure 7 As shown, the two groups of vibration sensor assemblies B0.1 and B0.2 have the same structure, both including a vibration sensor mounting plate B1, a vibration sensor B2, a measuring rod pressure plate B3 and a measuring rod mounting block B4; the vibration sensor B2 is fixed to the measuring platform bottom plate A0 through the sensor mounting plate B1, and the sensor measuring rod of the vibration sensor B2 is arranged horizontally and passes through the sensor mounting plate B1 and is pressed onto the bottom of the measuring rod mounting block B4 through the measuring rod pressure plate B3. The top of the measuring rod mounting block B4 is fixed to the floating platform D0; the sensor measuring rods of the vibration sensor B2 of the two groups of vibration sensor assemblies B0.1 and B0.2 are arranged in perpendicular directions, and the sensor measuring rod of one vibration sensor assembly B0.1 is perpendicular to the plane of the middle spring F2 to monitor the static imbalance of the floating platform; the measuring rod of the other vibration sensor assembly B0.2 is parallel to the plane of the middle spring F2 to monitor the coupler imbalance of the floating platform.

[0035] like Figure 1 Figure 2 As shown, workpiece I0 is secured to platform D0 using an automatic insertion assembly H0 and left and right fixtures G0.1 and G0.2. The axis of workpiece I0's rotation is horizontally positioned and parallel to the plane of center spring F2. Automatic insertion assembly H0 can be a sliding structure consisting of upper and lower rails and a slider, while left and right fixtures G0.1 and G0.2 can be pneumatically driven jaws.

[0036] like Figure 8As shown, floating platform locking cylinder assemblies E0.1 and E0.2 for lifting the floating platform D0 to make it stationary are arranged between the measuring platform base plate A0 and both sides of the floating platform D0. The floating platform locking cylinder assemblies E0.1 and E0.2 include a cylinder mounting plate E1, a cylinder E2, a cylinder top cone E3 and a floating platform fixed top cone E4; the cylinder E2 is fixedly mounted on the measuring platform base plate A0 through the cylinder mounting plate E1, and the top of the push rod of the cylinder E2 is fixedly mounted and connected to the cylinder top cone E3. The top surface of the cylinder top cone E3 is composed of two inclined surfaces of an isosceles triangle. The floating platform fixed top cone E4 is mounted on the bottom surface of the floating platform D0. The bottom surface of the floating platform fixed top cone E4 directly above the cylinder top cone E3 is provided with a V-shaped groove that matches the two inclined surfaces of the cylinder top cone E3, so that the cylinder top cone E3 is embedded in the V-shaped groove. Driven by the cylinder E2, the cylinder top cone E3 and the floating platform fixed top cone E4 can realize two actions of double-sided contact and separation, thereby realizing the function of stopping the shaking of the floating platform D0 by cooperating with the cylinder top cone E3 and the floating platform fixed top cone E4 before each balance test.

[0037] like Figure 4 Figure 5 As shown, measuring platform transport fixing plates C0.1 and C0.2 for fixedly connecting the measuring platform base plate A0 and the floating platform D0 are arranged between both sides. The upper ends of the measuring platform transport fixing plates C0.1 and C0.2 are fixed to the measuring platform base plate A0 by bolts, and the lower ends of the measuring platform transport fixing plates C0.1 and C0.2 are fixed to the floating platform D0 by bolts. The measuring platform transport fixing plates C0.1 and C0.2 are only installed during the transportation of the floating platform measuring device.

[0038] The specific implementation process of the present invention is:

[0039] After the measuring device completes an imbalance detection, the workpiece I0 is powered off and stops rotating. Since the measuring platform is floating, the floating platform D0 continues to vibrate under the action of inertia. At this time, the floating platform locking cylinder assemblies E0.1 and E0.2 are activated, and the cylinder push rod pushes the cylinder top cone E3 upward. The cylinder top cone E3 contacts the floating platform fixed top cone E4 through two surfaces, and the floating platform D0 stops vibrating.

[0040] Before the next imbalance detection begins, the floating platform locking cylinder assemblies E0.1 and E0.2 are actuated, the cylinder push rod drags the cylinder top cone E3 downward, and the cylinder top cone E3 is separated from the floating platform fixed top cone E4, and the next imbalance detection begins.

[0041] The measuring platform transport fixing plates C0.1 and C0.2 are placed on either side of the floating platform D0. Their upper ends are bolted to the floating platform D0, and their lower ends are bolted to the measuring platform base plate A0. This allows for transportation of the floating platform measuring device of the present invention, preventing damage to the spring rods and springs during transportation. During normal measurement operations, the measuring platform transport fixing plates C0.1 and C0.2 can be removed.

Claims

1. A high separation ratio static-couple separation floating table measuring device, characterized in that: It comprises a measuring platform bottom plate (A0), two groups of vibration sensor components (B0.1 and B0.2), a floating platform (D0) and two groups of spring rod and reed components (F0.1 and F0.2); the floating platform (D0) is installed on the measuring platform bottom plate (A0) in a floating manner through the two groups of spring rod and reed components (F0.1 and F0.2); the two groups of vibration sensor components (B0.1 and B0.2) are arranged vertically and orthogonally and fixed on the measuring platform bottom plate (A0) and connected to the bottom of the floating platform (D0); a workpiece (I0) is installed on the top surface of the floating platform (D0), the workpiece (I0) is powered on and rotates to generate vibration, and the vibration is transmitted to the sensor measuring rods of the two groups of vibration sensor components (B0.1 and B0.2) through the floating platform (D0), thereby realizing the monitoring of the static unbalance and even unbalance of the workpiece (I0); The two groups of spring rod spring leaf assemblies (F0.1, F0.2) have the same structure and are symmetrically arranged and connected between the top surface of the measuring platform bottom plate (A0) and the bottom surface of the floating platform (D0); each spring rod spring leaf assembly (F0.1, F0.2) comprises two spring rod bases (F1) arranged vertically, a middle spring leaf (F2) and two spring rods (F4); one spring rod base (F1) is located directly above the other spring rod base (F1) and is arranged vertically and parallelly, one spring rod base (F1) is fixed to the top surface of the measuring platform bottom plate (A0), and the other spring rod base (F1) is located and fixed to the bottom surface of the floating platform (D0); the middle spring leaf (F2) is supported and connected between the middle parts of the two spring rod bases (F1), and a spring rod (F4) is supported and connected between each end of the two spring rod bases (F1), and the middle spring leaf (F2) is a long strip plate, so that the two spring rods (F4) and the middle spring leaf (F2) support the upper and lower spring rod bases (F1); The middle spring leaf (F2) is fixed at both ends on the two spring rod bases (F1) through a spring leaf pressure plate (F3), the middle spring leaf (F2) is perpendicular to the two spring rod bases (F1), and the plane of the middle spring leaf (F2) is perpendicular to the plane formed by the two spring rod bases (F1); The two spring rods (F4) are fixed to the ends of the spring rod base (F1) through the spring rod pressing blocks (F5); The two groups of vibration sensor assemblies (B0.1, B0.2) have the same structure, and both include a vibration sensor mounting plate (B1), a vibration sensor (B2), a measuring rod pressure plate (B3) and a measuring rod mounting block (B4); the vibration sensor (B2) is fixed to the bottom plate (A0) of the measuring platform through the sensor mounting plate (B1); the sensor measuring rod of the vibration sensor (B2) is arranged horizontally and is pressed to the bottom of the measuring rod mounting block (B4) through the measuring rod pressure plate (B3); the top of the measuring rod mounting block (B4) is fixed to the floating platform (D0); the sensor measuring rods of the vibration sensors (B2) of the two groups of vibration sensor assemblies (B0.1, B0.2) are arranged in perpendicular directions, the sensor measuring rod of one vibration sensor assembly (B0.1) is perpendicular to the plane of the middle spring sheet (F2), so as to monitor the static imbalance of the floating platform; the measuring rod of the other vibration sensor assembly (B0.2) is parallel to the plane of the middle spring sheet (F2), so as to monitor the unbalance of the floating platform.

2. A high separation ratio static-couple separation floating table measuring device according to claim 1, characterized in that: The workpiece (I0) is fixed on the floating platform (D0) and is fixedly installed by an automatic plug-in assembly (H0) and left and right tooling fixtures (G0.1, G0.2), and the axis of the rotating body of the workpiece (I0) is installed horizontally and parallel to the plane of the middle spring sheet (F2).

3. The high separation ratio static-couple separation floating table measuring device according to claim 1, characterized in that: A floating platform locking cylinder assembly (E0.1, E0.2) for lifting the floating platform (D0) to make it stationary is arranged between the bottom plate (A0) of the measuring platform and the two sides of the floating platform (D0). The floating platform locking cylinder assembly (E0.1, E0.2) comprises a cylinder mounting plate (E1), a cylinder (E2), a cylinder top cone (E3) and a floating platform fixed top cone (E4); the cylinder (E2) is fixedly mounted on the bottom plate (A0) of the measuring platform through the cylinder mounting plate (E1); the top of the push rod of the cylinder (E2) is fixedly mounted and connected to the cylinder top cone (E3); the top surface of the cylinder top cone (E3) is composed of two inclined surfaces of a triangle; the floating platform fixed top cone (E4) is mounted on the bottom surface of the floating platform (D0); the bottom surface of the floating platform fixed top cone (E4) is provided with a V-shaped groove that matches the two inclined surfaces of the cylinder top cone (E3), so that the cylinder top cone (E3) is embedded and matched in the V-shaped groove.

4. The high separation ratio static-couple separation floating table measuring device according to claim 1, characterized in that: Measuring platform transport fixing plates (C0.1, C0.2) for fixing the two are arranged between the measuring platform bottom plate (A0) and the floating platform (D0). The upper ends of the measuring platform transport fixing plates (C0.1, C0.2) are fixedly connected to the measuring platform bottom plate (A0) by bolts, and the lower ends of the measuring platform transport fixing plates (C0.1, C0.2) are fixedly connected to the floating platform (D0) by bolts. The measuring platform transport fixing plates (C0.1, C0.2) are only installed during the transportation of the floating platform type measuring device.

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