CN213956661U

CN213956661U - General type quality characteristic parameter measuring device

Info

Publication number: CN213956661U
Application number: CN202120212821.7U
Authority: CN
Inventors: 杨洪涛; 麻高占; 武艺泳; 卢志辉; 张磊乐; 郑国良; 刘珉; 乔永强
Original assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Current assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-08-13
Anticipated expiration: 2031-01-26

Abstract

A general type quality characteristic parameter measuring device is characterized in that: the device comprises a vertical turntable which is arranged at the center of a base and performs torsional pendulum motion around a vertical shaft, and a horizontal tool arranged above the vertical turntable; a plurality of weighing sensors are arranged between the top surface of the base and the bottom surface of the vertical turntable, spiral weighing apexes the quantity and position of which are matched with the weighing sensors are arranged on a horizontal tool chassis of the horizontal tool, the spiral weighing apexes are rotatably arranged on the horizontal tool chassis through weighing nuts, and the lower ends of the spiral weighing apexes penetrate through holes processed on the vertical turntable and extend to the positions above the weighing sensors; install the horizontal rotary table that is used for accomplishing the product around the torsional pendulum motion of horizontal axis through axial displacement mechanism in horizontal frock rear end, install in proper order behind the front end of horizontal frock and remove the dipperstick and be used for providing the auxiliary stay of rotary support to the product anterior segment.

Description

General type quality characteristic parameter measuring device

Technical Field

The utility model relates to a general type quality characteristic parameter measuring device can accomplish multiple product quality characteristic parameter's measurement on a equipment.

Background

The mass, the center of mass and the moment of inertia are the most important components of the characteristic parameters of the mass. In the aerospace field, the mass directly belongs to takeoff load, the mass center and the rotary inertia are related to the difficulty of flight track control and attitude adjustment, the mass center and the rotary inertia are important parameters in the flight control of various weaponry, and the product quality characteristic parameters can be obtained through equipment measurement. With the development requirements of national defense, new types of products are increasingly increased, the size of the products is greatly changed, one quality characteristic measuring device is required to meet the measurement requirements of various products in order to save cost, improve measuring efficiency and reduce occupied space of the device, and the requirement on the generalization of the quality characteristic measuring device is higher and higher. The traditional equipment needs to change the product posture in the product quality characteristic parameter measuring process, generally needs two kinds of postures of product level and slope (vertical), needs to hoist or set up the drive structure to change the product posture once more to the product, and the operation is complicated, and efficiency is lower, more and more can not satisfy the demand of actual combat ization.

Disclosure of Invention

The utility model aims at providing a general type quality characteristic parameter measuring device just to the weak point that exists among the above-mentioned prior art. The utility model discloses a device just can satisfy the measurement demand of multiple product through changing counter weight and support on switching dish and the horizontal frock of removal, has very strong suitability, and the product only needs the dress card once, just can accomplish all quality characteristic parameter's measurement under the horizontality, and measurement operation is succinct.

The purpose of the utility model can be realized by the following technical measures:

the utility model discloses a universal quality characteristic parameter measuring device, which comprises a vertical turntable which is arranged at the center of a base and does torsional pendulum motion around a vertical shaft, and a horizontal tool which is arranged above the vertical turntable; a plurality of weighing sensors are arranged between the top surface of the base and the bottom surface of the vertical turntable, spiral weighing apexes the quantity and position of which are matched with the weighing sensors are arranged on a horizontal tool chassis of the horizontal tool, the spiral weighing apexes are rotatably arranged on the horizontal tool chassis through weighing nuts, and the lower ends of the spiral weighing apexes penetrate through holes processed on the vertical turntable and extend to the positions above the weighing sensors; install the horizontal rotary table that is used for accomplishing the product around the torsional pendulum motion of horizontal axis through axial displacement mechanism in horizontal frock rear end, install in proper order behind the front end of horizontal frock and remove the dipperstick and be used for providing the auxiliary stay of rotary support to the product anterior segment.

In the utility model, the horizontal turntable is arranged at the front side of the movable support in a vertical arrangement mode, and the movable support is arranged on the horizontal tool through a lead screw for driving the guide rail arranged along the length direction of the movable support to do displacement motion; a product switching disk is arranged on the front side vertical surface of the horizontal turntable.

The vertical turntable is arranged at the center of the base through a torsion bar and a bearing.

The horizontal turntable is combined with the front vertical surface of the movable support through a turntable bearing, fixing pins which are symmetrically arranged on two sides of the center of the horizontal turntable, and a torsion spring connected with the fixing pins.

The left and right moving measuring scale is installed on two sides of the moving balance weight and is in sliding fit with guide rods arranged on two sides of the horizontal tool respectively, and the moving balance weight is installed above the front end of the horizontal tool through a guide rail and a screw rod.

The auxiliary support comprises a supporting beam, wherein the two ends of the supporting beam are respectively provided with a roller, the bottom of the supporting beam is arranged on a horizontal tool through a left guide rod and a right guide rod, and a lead screw for adjusting the height of the auxiliary support is arranged between the left guide rod and the right guide rod.

More specifically, the utility model discloses a press horizontal frock on corresponding weighing sensor through a plurality of spiral weighing centre (the spiral weighing centre can realize horizontal frock and weighing sensor contact and separation through the rotation, and then realize the switching of product mass barycenter and inertia function), combine the measurement of removal dipperstick reading realization product mass and three-dimensional barycenter; the spiral weighing centre can complete the product and wind vertical axis torsional pendulum motion with vertical turntable is fixed after having rotated away from with weighing sensor, and the product is fixed and can be accomplished the product and wind the torsional pendulum motion of horizontal axis at horizontal turntable, realizes being surveyed the three-dimensional inertia of product and measures, and the product of being surveyed can only be with once dress card on this measuring device promptly, just can accomplish including quality, three-dimensional barycenter, all quality characteristic parameters of three-dimensional inertia under the horizontality.

To the not unidimensional product accessible of being surveyed product change product switching dish and horizontal frock fixed connection, remove the support and remove the counter weight and can move on horizontal frock, can satisfy frock and surveyed product barycenter all the time and put at central point, improve measurement accuracy.

The auxiliary stay install the gyro wheel that can go up and down, provide rotatory support to the product anterior segment, satisfy the measurement demand of long size product. The measuring scale is moved left and right to measure the upper and lower diagonal points of the measured surface respectively, and the measuring error caused by deformation and inclination of the measured surface is reduced.

The utility model discloses a theory of operation and beneficial effect as follows:

the utility model discloses an among the device, through changing the product switching dish, realize that not unidimensional product is connected fixedly with measuring frock, satisfy the measurement demand of not unidimensional product. The utility model discloses in the change of weight behind a plurality of weighing sensor that set up can measure frock itself and the put into product, remove the ruler reading and can measure the product terminal surface to the distance of measuring the benchmark, the product is rotatory 90 degrees (horizontal barycenter weight switches) by statics balance formula and is calculated product quality and three-dimensional barycenter on horizontal rotary table at the horizontality. The vertical turntable of the measuring device realizes the torsional pendulum motion of a product around a vertical shaft, the horizontal turntable can enable the product to do torsional pendulum motion around a horizontal shaft, the product rotates 90 degrees (the transverse moment of inertia component is switched) on the horizontal turntable in a horizontal state, and the measurement of the three-dimensional moment of inertia of the product is completed by a torsional pendulum method measuring principle.

The utility model discloses only need adopt a measuring device just can satisfy the measurement demand of multiple size product, the commonality is strong, and surveyed the product and only need keep a horizontal gesture on the device, just can accomplish including all parameter measurement of quality, three-dimensional barycenter, three-dimensional inertia, the simple operation very has popularization and application and worth.

Drawings

Fig. 1 is a schematic structural diagram of the measuring device of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic view of the auxiliary support.

Fig. 4 is a schematic view of the working principle of the vertical turntable torsional pendulum movement mechanism and the spiral weighing tip (the part above the horizontal tool chassis is hidden).

Fig. 5 is a schematic diagram of a horizontal turntable torsional pendulum motion mechanism.

Fig. 6 is a side view (partially in section) of fig. 5.

Number in the figure: the device comprises a base 1, a weighing sensor 2, a vertical turntable 3, a bearing 3-1, a torsion bar 3-2, a spiral weighing tip 4, a weighing nut 4-1, a horizontal tool chassis 4-2, a positioning pin 4-3, a horizontal tool 5, a movable support 6, a horizontal turntable 7, a turntable bearing 7-1, a torsion spring 7-2, a fixing pin 7-3, a product adapter plate 8, a guide rail 9, a screw rod 10, an auxiliary support 11, a roller 11-1, a guide rod 11-2, a lead screw 11-3, a movable counterweight 12, a guide rail 13, a screw rod 14, a movable measuring scale 15 and a product 16.

Detailed Description

The invention will be further described with reference to the following examples and drawings.

As shown in fig. 1 and 2, the universal quality characteristic parameter measuring device of the present invention includes a vertical turntable 3 mounted at the center of a base 1 and performing torsional pendulum motion around a vertical axis, and a horizontal tool 5 mounted above the vertical turntable 3; a plurality of weighing sensors 2 are arranged between the top surface of the base and the bottom surface of the vertical turntable, spiral weighing apexes 4 the quantity and positions of which are matched with the weighing sensors 2 are arranged on a horizontal tool chassis 4-2 of the horizontal tool 5, the spiral weighing apexes 4 are screwed on the horizontal tool chassis 4-2 through weighing nuts 4-1, and the lower ends of the spiral weighing apexes 4 penetrate through holes processed on the vertical turntable 3 and extend to the positions above the weighing sensors 2 (see fig. 4); install the horizontal rotary table 7 that is used for accomplishing the product around the torsional pendulum motion of horizontal axis through axial displacement mechanism at horizontal frock 5 rear end, remove dipperstick 15 and be used for providing the auxiliary stay 11 of rotary support to the product anterior segment by installing in proper order after the front end of horizontal frock.

As shown in fig. 4, a screw thread matched with a weighing nut 4-1 is arranged on the rotary weighing centre 4, the weighing nut 4-1 is arranged on a horizontal tool chassis 4-2, when the rotary weighing centre rotates in the weighing nut to extend downwards, the horizontal tool chassis is separated from a vertical turntable 3, and the rotary weighing centre is directly pressed on a weighing sensor 2 to measure the mass and the mass center of a product; when the weighing centre is shortened, the horizontal tool chassis is directly pressed on the vertical rotary table and is fixed by positioning pins 4-3 at two sides of the horizontal tool chassis, and screws can be arranged for locking to measure the rotational inertia of the product.

In the utility model, the horizontal turntable 7 is vertically arranged at the front side of the movable support 6, and the movable support 6 is arranged on the horizontal tool 5 through a screw rod 10 which is used for driving a guide rail arranged along the length direction of the movable support to do displacement motion; a product switching disk 8 is arranged on the front side vertical surface of the horizontal turntable 7; the horizontal turntable 7 is combined with the front vertical surface of the movable support 6 through a turntable bearing 7-1, fixing pins 7-3 which are symmetrically arranged on two sides of the center of the horizontal turntable, and a torsion spring 7-2 connected with the fixing pins. (see FIGS. 5 and 6).

The left and right moving measuring scale 15 is installed on two sides of the moving balance weight 12 and is in sliding fit with guide rods arranged on two sides of the horizontal tool 5 respectively, and the moving balance weight 12 is installed above the front end of the horizontal tool 5 through a guide rail 13 and a lead screw 14.

As shown in FIG. 4, the vertical turntable 3 is mounted at the center of the base 1 through a torsion bar 3-2 and a bearing 3-1.

As shown in fig. 3, the auxiliary support 11 comprises a support beam, two ends of which are respectively provided with a roller 11-1, the bottom of the support beam is arranged on the horizontal tool 5 through a left guide rod 11-2 and a right guide rod 11-2, and a screw 11-3 for adjusting the height of the auxiliary support is arranged between the left guide rod 11-2 and the right guide rod 11-2.

Furthermore, the utility model discloses a main technical characterstic is: firstly, products to be measured with different sizes can be fixedly connected with a horizontal tool through a product replacing adapter plate 8, the universality is very strong, the movable support 6 and the movable balance weight 12 can move on the horizontal tool 5, the center of mass of the tool and the product to be measured can be always kept at the central position, and the measurement precision is improved; secondly, a plurality of spiral weighing apexes 4 and corresponding weighing sensors 2 are arranged in the device, and the product quality and the three-dimensional mass center can be measured by combining a movable measuring scale 15; the device can realize the torsional pendulum motion of the product around a vertical shaft and a horizontal shaft through the vertical rotary disc 3 and the horizontal rotary disc 7, and the three-dimensional rotational inertia measurement of the product is completed.

According to 16 interfaces of the products to be measured and the requirement of the position of the center of mass, a proper product switching disc 8 is replaced, the movable support 6 and the movable balance weight position are adjusted through a rotary screw rod, the center of mass is basically arranged at the center of the device after the initial center of mass of the tool and the products are placed, the horizontal tool 5 is pressed on the corresponding weighing sensor 2 through a plurality of spiral weighing tops 4, the sensor firstly measures the empty disc state of the horizontal tool, then the hoisted products are placed on the horizontal tool, if the products are too long, the auxiliary supports 11 are required to be installed to support the front section of the products, the product quality is calculated by reading the reading change of the weighing sensor 2 before and after the products are placed on the front section of the products 16. The distance of product terminal surface to measuring standard can be measured to the removal dipperstick, changes according to a plurality of weighing sensor 2's reading, can calculate the distance of well product barycenter relative measuring standard by statics equilibrium formula, and then calculates the position of product barycenter, and the product is rotatory 90 degrees (horizontal barycenter component switches) at the horizontality on horizontal rotating disc 7, can realize the measurement of the three-dimensional barycenter of product. The two movable measuring scales are arranged, the upper diagonal point and the lower diagonal point of the measured surface can be measured respectively, one of the two numerical values is larger, the other numerical value is smaller, the average value of the two numerical values is taken during measurement, and the reference measurement error caused by the inclined deformation of the product mounting surface can be effectively eliminated.

As shown in fig. 3, the roller set of the auxiliary support 11 can move up and down along the guide rod under the driving of the screw rod, so as to realize the change and adjustment of the supporting height of the product, and the product can freely rotate around the horizontal shaft under the support.

As shown in FIG. 4, the vertical turntable is connected with a torsion bar, and the rotating shaft is restrained by a bearing, so that the torsional pendulum motion of the vertical turntable around the vertical shaft can be realized. As shown in fig. 5, the horizontal rotary table may be connected to two symmetrical sets of torsion springs through fixing pins, and the rotary table may be constrained by a rotary table bearing, so as to realize the torsional pendulum motion of the horizontal rotary table around the horizontal shaft. After the spiral weighing tip 4 is screwed up and separated from the weighing sensor, the spiral weighing tip and the vertical rotary table 3 can be fixed to do torsional motion around a vertical shaft, the horizontal rotary table 7 can enable a measured product to do torsional motion around a horizontal shaft, the product rotates 90 degrees (transverse rotational inertia component switching) on the horizontal rotary table 7 in a horizontal state, and measurement of three-dimensional rotational inertia of the product is completed according to a torsional pendulum method measurement principle.

Claims

1. A general type quality characteristic parameter measuring device is characterized in that: the device comprises a vertical turntable (3) which is arranged at the center of a base (1) and performs torsional pendulum motion around a vertical shaft, and a horizontal tool (5) which is arranged above the vertical turntable (3); a plurality of weighing sensors (2) are arranged between the top surface of the base and the bottom surface of the vertical turntable, spiral weighing apexes (4) the quantity and position of which are matched with the weighing sensors (2) are mounted on a horizontal tool chassis (4-2) of the horizontal tool (5), the spiral weighing apexes (4) are screwed on the horizontal tool chassis (4-2) through weighing nuts (4-1), and the lower ends of the spiral weighing apexes (4) penetrate through holes machined in the vertical turntable (3) and extend to the positions above the weighing sensors (2); install horizontal rotary table (7) that are used for accomplishing the product around the torsional pendulum motion of horizontal axis through axial displacement mechanism in horizontal frock (5) rear end, remove dipperstick (15) and be used for providing the auxiliary stay (11) of rotary support to the product anterior segment by installing in proper order after the front end of horizontal frock.

2. The universal quality attribute parameter measurement apparatus of claim 1, wherein: the horizontal turntable (7) is vertically arranged on the front side of the movable support (6), and the movable support is arranged on the horizontal tool (5) through a lead screw (10) for driving the movable support to do displacement motion along a guide rail arranged in the length direction; a product switching disk (8) is arranged on the front side vertical surface of the horizontal turntable (7).

3. The universal quality attribute parameter measurement apparatus of claim 1, wherein: the vertical turntable (3) is arranged at the center of the base (1) through a torsion bar (3-2) and a bearing (3-1).

4. The universal quality attribute parameter measurement apparatus of claim 1, wherein: the horizontal turntable (7) is combined with the front vertical surface of the movable support (6) through a turntable bearing (7-1), fixing pins (7-3) which are symmetrically arranged on two sides of the center of the horizontal turntable, and a torsion spring (7-2) connected with the fixing pins.

5. The universal quality attribute parameter measurement apparatus of claim 1, wherein: remove left right branch dipperstick (15) and install in the both sides of removing counter weight (12) and respectively with the guide arm sliding fit who sets up in horizontal frock (5) both sides, remove counter weight (12) and install in horizontal frock (5) front end top through guide rail (13), lead screw (14).

6. The universal quality attribute parameter measurement apparatus of claim 1, wherein: the auxiliary support (11) comprises a support cross beam, wherein rollers (11-1) are respectively arranged at two ends of the support cross beam, the bottom of the support cross beam is arranged on the horizontal tool (5) through a left guide rod and a right guide rod (11-2), and a lead screw (11-3) for adjusting the height of the auxiliary support is arranged between the left guide rod and the right guide rod (11-2).