Workpiece gravity center detection device

Abstract

The utility model discloses a workpiece gravity center detection device, which comprises a detection table, and a universal ball hinge support II is arranged below the detection table. The leveling adjusting frames are mounted on the bottom surface of the detection table in a central symmetry manner; oil rods of the oil cylinders are correspondingly installed on the three second universal ball hinge supports respectively, and the oil cylinders are communicated with one another through oil pipes; a universal ball hinge support I is arranged on the base, and the bottom of the oil cylinder is mounted on the universal ball hinge support I; and the laser is mounted at the center position of the bottom surface of the detection table and is used for vertically projecting a datum line. According to the workpiece gravity center detection device provided by the embodiment of the utility model, the gravity center of a processed workpiece can be rapidly detected through the synergistic effect of hydraulic self-balancing of the oil cylinder and counterweight fine adjustment of the lead screw.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a workpiece center of gravity detection device. Background Technology

[0002] In the fields of hardware processing and machinery manufacturing, workpiece center of gravity detection is a crucial process for ensuring dynamic balance and assembly accuracy. Traditional detection techniques mainly suffer from the following technical bottlenecks: the limitations of the classic suspension method, which uses two-point suspension combined with angle measurement, although simple in principle, requires multiple changes of suspension points, which is extremely inconvenient when measuring a large number of parts. The three-point weighing measurement method requires complex calculations to obtain the center of gravity coordinates, and cannot intuitively display the direction and degree of offset. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a workpiece center of gravity detection device, featuring a hydraulic-mechanical dual-mode leveling structure. Through the synergistic effect of hydraulic self-balancing by the oil cylinder and fine-tuning by the lead screw counterweight, rapid detection of the center of gravity of the processed workpiece can be achieved.

[0004] To achieve the above objectives, this utility model proposes a workpiece center of gravity detection device, comprising: a detection table, with three universal ball joint supports arranged below the detection table, the three universal ball joint supports being centrally symmetrically installed on the bottom surface of the detection table; three leveling adjustment frames, the three leveling adjustment frames being centrally symmetrically installed on the bottom surface of the detection table; and three hydraulic cylinders, the hydraulic rods of the three hydraulic cylinders being respectively installed on three... On the universal ball joint support two, oil pipes are installed on each of the three hydraulic cylinders, and the three hydraulic cylinders are connected to each other through the oil pipes; on the base, universal ball joint support one is provided, and there are three universal ball joint support one, which are centrally symmetrically installed on the base, and the bottoms of the three hydraulic cylinders are respectively installed on the three universal ball joint support one; the laser is installed at the center of the bottom surface of the detection table, and the laser is used to vertically project the reference line.

[0005] Preferably, the three leveling and adjusting brackets are respectively arranged on the outer side of the three universal ball joint supports, and each of the three leveling and adjusting brackets is fixed with a lead screw, and each of the three lead screws is equipped with a counterweight nut.

[0006] Preferably, the testing platform is circular, and the axial direction of the three lead screws is consistent with the radial direction of the testing platform.

[0007] Preferably, a vertical line from the center of the testing platform passes through the center of the base.

[0008] Preferably, the outer ring of the center of the base end face is uniformly engraved with positioning rings, and the spacing of the positioning rings corresponds to the allowable tolerance value of the workpiece's center of gravity.

[0009] Preferably, an auxiliary positioning circle is uniformly engraved on the outer ring of the center of the upper surface of the testing platform.

[0010] Preferably, the upper end of the hydraulic cylinder is inclined toward the center of the testing platform, and the diameter of the circle formed by the three centrally symmetrical universal ball joint supports is smaller than the diameter of the circle formed by the three centrally symmetrical universal ball joint supports.

[0011] Preferably, the upper end of the hydraulic cylinder is tilted at an angle of 15° toward the center of the testing platform.

[0012] The beneficial effects of the workpiece center of gravity detection device of this utility model are as follows: three interconnected oil cylinders form a three-way hydraulic balance system through the hydraulic oil pressure equalization characteristics, realizing the adaptive tilt of the detection table; a leveling adjustment frame is set at the edge position below the detection table, and the local torque can be finely adjusted by the lead screw and counterweight nut to realize the balance adjustment of the detection table before testing; a laser is set, and the laser projection reference line cooperates with the positioning ring to realize rapid coarse positioning, which can intuitively show the center of gravity offset position and provide a processing basis for secondary processing.

[0013] Additional advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] Figure 1 This is a front view of a workpiece center of gravity detection device according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the bottom surface of the detection platform of a workpiece center of gravity detection device according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the leveling and adjusting frame structure of a workpiece center of gravity detection device according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the upper end face of the base of a workpiece center of gravity detection device according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the upper surface of the detection platform of a workpiece center of gravity detection device according to an embodiment of the present utility model.

[0019] Attached reference numerals: 1. Testing table; 2. Leveling and adjusting frame; 3. Oil cylinder; 4. Oil pipe; 5. Base; 6. Universal ball hinge support one; 7. Universal ball hinge support two; 8. Laser; 9. Lead screw; 10. Counterweight nut; 11. Positioning ring; 12. Auxiliary positioning circle. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following description, with reference to the accompanying drawings, describes a workpiece center of gravity detection device according to an embodiment of the present invention.

[0025] like Figures 1-4As shown, a workpiece center of gravity detection device according to an embodiment of the present invention includes: a detection platform 1, a leveling and adjusting frame 2, a hydraulic cylinder 3, a base 5, and a laser 8. Three universal ball joint supports 7 are arranged below the detection platform 1, and these three universal ball joint supports 7 are centrally symmetrically installed on the bottom surface of the detection platform 1. Three leveling and adjusting frames 2 are also centrally symmetrically installed on the bottom surface of the detection platform 1. The three leveling and adjusting frames 2 are respectively arranged on the outer sides of the three universal ball joint supports 7, and each of the three leveling and adjusting frames 2 has a corresponding support on its outer side. A lead screw 9 is fixed, and a counterweight nut 10 is installed on each of the three lead screws 9. Before measurement, the testing platform 1 needs to be leveled. By rotating the counterweight nut 10, the torque at the balance center is increased. The three counterweight nuts 10 work together to relevel the testing platform 1. There are three hydraulic cylinders 3, and the hydraulic rods of the three cylinders 3 are respectively installed on three universal ball joint supports 7. Each of the three cylinders 3 is equipped with an oil pipe 4, and the three cylinders 3 are connected to each other through the oil pipes 4. The connected cylinders 3 form a three-way hydraulic balance system through the hydraulic oil equalization characteristics to realize the testing. The platform 1 adaptively tilts, allowing the workpiece to regain balance under its own weight. Three universal ball joint supports 6 are mounted on the base 5, arranged symmetrically on the base 5. Three hydraulic cylinders 3 are mounted on the three universal ball joint supports 6 respectively. The upper and lower ends of the hydraulic cylinders 3 are connected via universal ball joint supports 1 and 7, releasing the rotational freedom of the testing platform 1 and the swing freedom of the hydraulic cylinders 3. This combination ensures that the hydraulic cylinders 3 only bear the axial load. To avoid lateral loads affecting the measurement results, the laser 8 is installed at the center of the bottom surface of the inspection table 1. The laser 8 is used to vertically project the reference line. The vertical line at the center of the inspection table 1 passes through the center of the base 5. The outer ring of the center of the end face of the base 5 is uniformly engraved with positioning rings 11. The spacing of the positioning rings 11 corresponds to the allowable tolerance value of the workpiece's center of gravity. When the inspection table 1 is in a horizontal state, the laser projected by the laser 8 illuminates the center position of the positioning rings 11 on the base 5. When inspecting the workpiece, different scales on the positioning rings 11 can be selected as the qualified reference according to the allowable processing error.

[0026] like Figure 1 As shown, in another embodiment of the present invention, a workpiece center of gravity detection device is provided, wherein the upper end of the hydraulic cylinder 3 is inclined toward the center of the detection table 1, and the diameter of the circle formed by the three centrally symmetrical universal ball joint supports 7 is smaller than the diameter of the circle formed by the three centrally symmetrical universal ball joint supports 6. This arrangement can ensure the stability of the structure. During the test, the optimal structural angle is 15° when the upper end of the hydraulic cylinder 3 is inclined toward the center of the detection table 1.

[0027] like Figure 2As shown, according to another embodiment of the present invention, a workpiece center of gravity detection device has a circular detection platform 1, and the axial direction of the three lead screws 9 is consistent with the radial direction of the detection platform 1. This arrangement directly acts on the swing torque, which can ensure the best control effect of the counterweight nut 10.

[0028] like Figure 5 As shown, according to another embodiment of the present invention, an auxiliary positioning circle 12 is uniformly engraved on the outer ring of the center of the upper end face of the detection table 1. When detecting the center of gravity of the workpiece, considering that the preset center of gravity of the workpiece can be quickly aligned with the center position of the auxiliary positioning circle 12, an external positioning device can be added to enable the preset center of gravity of the workpiece to be quickly aligned with the center of gravity of the detection table 1.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A workpiece center of gravity detection device, characterized in that, include: The testing platform has three universal ball joint supports installed on the bottom surface of the testing platform in a centrally symmetrical manner. A leveling and adjusting frame, wherein three leveling and adjusting frames are provided and are centrally symmetrically installed on the bottom surface of the testing table; The hydraulic cylinder is provided in three parts, and the hydraulic rods of the three hydraulic cylinders are respectively installed on the three universal ball joint supports. Each of the three hydraulic cylinders is equipped with an oil pipe, and the three hydraulic cylinders are connected to each other through the oil pipes. The base has three universal ball joint supports, which are centrally symmetrically installed on the base. The bottoms of the three hydraulic cylinders are respectively installed on the three universal ball joint supports. A laser is installed at the center of the bottom surface of the testing platform, and the laser is used to vertically project a reference line.

2. The workpiece center of gravity detection device according to claim 1, characterized in that, The three leveling and adjusting brackets are respectively set on the outside of the three universal ball joint supports. Each of the three leveling and adjusting brackets is fixed with a lead screw, and each of the three lead screws is equipped with a counterweight nut.

3. The workpiece center of gravity detection device according to claim 2, characterized in that, The testing platform is circular, and the axial direction of the three lead screws is consistent with the radial direction of the testing platform.

4. The workpiece center of gravity detection device according to claim 1, characterized in that, A vertical line from the center of the testing platform passes through the center of the base.

5. The workpiece center of gravity detection device according to claim 4, characterized in that, The base end face has a uniformly engraved positioning ring on the outer ring center, and the spacing of the positioning ring corresponds to the allowable tolerance value of the workpiece's center of gravity.

6. The workpiece center of gravity detection device according to claim 1, characterized in that, The outer circumference of the upper surface of the testing platform is uniformly engraved with auxiliary positioning circles.

7. The workpiece center of gravity detection device according to claim 1, characterized in that, The upper end of the hydraulic cylinder is inclined toward the center of the testing platform, and the diameter of the circle formed by the three centrally symmetrical universal ball joint supports is smaller than the diameter of the circle formed by the three centrally symmetrical universal ball joint supports.

8. The workpiece center of gravity detection device according to claim 7, characterized in that, The upper end of the hydraulic cylinder is tilted at an angle of 15° toward the center of the testing platform.

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