An automatic workpiece gravity pressure detection platform

Abstract

An automatic workpiece gravity pressure detection platform, comprising an operating platform for placing a workpiece for processing; a support base fixedly arranged below the operating platform; a support plate fixedly arranged on the support base; and a plurality of gravity pressure detection devices arranged between the support plate and the operating platform for detecting the gravity and pressure of the workpiece on the operating platform. The platform adopting the above technical solution can detect the workpiece thereon in real time with high detection accuracy, so that the external operating components can timely adjust the acting force applied to the workpiece to prevent damage to the workpiece and affect the qualification rate of the workpiece.

Description

Technical Field

[0001] The present invention relates to the field of mechanical production and processing, and particularly relates to an automatic detection workpiece gravity pressure platform. Background Art

[0002] At present, the development of the automated production and processing industry is getting faster and faster, and the processing objects are also becoming more and more extensive. Starting from the initial production and processing of large metal parts, it has now developed to the production and processing of ultra-thin, miniaturized, and fragile parts, which also reflects the rapid development of the automated production and processing field.

[0003] During the process of processing and producing parts, it is necessary to fixedly install the parts on an operation platform, and then perform a series of production and processing procedures such as fitting, assembling, cutting, engraving, and welding on the parts by operating components. All of the above procedures require a certain amount of force to be applied to the workpiece in order to carry out effective production and processing. When processing large parts or parts with relatively large stiffness, the force applied by the operating component to the workpiece can be ignored. However, when processing small parts, especially ultra-thin and fragile parts, the force applied by the operating component to the workpiece during production and processing cannot be ignored. If the force is too large, it will damage the workpiece and increase the scrap rate. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic detection workpiece gravity pressure platform, which is convenient for detecting the gravity of the workpiece located on the platform and the force applied to the workpiece by the operating component during the production and processing process, so as to facilitate the adjustment of the production and processing force of the operating component and reduce the occurrence of scrap rate.

[0005] The technical solution provided by the present invention to solve the technical problem is: an automatic detection workpiece gravity pressure platform, including

[0006] An operation platform, which is used for placing the workpiece so as to facilitate the processing of the workpiece;

[0007] A support seat, which is fixedly arranged below the operation platform;

[0008] A support plate, which is fixedly arranged on the support seat;

[0009] A gravity pressure detection device, which is provided in several numbers between the support plate and the operation platform for detecting the gravity of the workpiece on the operation platform and the pressure received;

[0010] The gravity pressure detection device includes:

[0011] A pressure sensor, which is fixedly installed on the support plate;

[0012] A balance plate, which is arranged between the pressure sensor and the operation platform, and the lower surface of the balance plate is fixedly connected to the pressure sensor, and the upper surface thereof is fixedly connected to the lower surface of the operation platform, so that the pressure sensor is indirectly connected to the operation platform.

[0013] Preferably, the gravity pressure detection device further includes a guiding mechanism, which is arranged beside the pressure sensor and includes a first guiding block, a second guiding block and a guide rod;

[0014] The first guiding block is located above the support plate, and the upper surface of the first guiding block is fixedly connected to the lower surface of the balance plate;

[0015] The second guiding block is symmetrically located below the support plate in a mirror image of the first guiding block. The upper surface of the second guiding block is fixedly connected to the lower surface of the support plate, and the second guiding block and the support plate are provided with sliding holes through which the guide rod passes and can slide therein;

[0016] One end of the guide rod is fixedly connected to the first guiding block, and the other end passes through the sliding hole and protrudes from the lower surface of the second guiding block.

[0017] Preferably, there are four gravity pressure detection devices, which are respectively located at the four corner edges of the support plate.

[0018] Preferably, the pressure sensor is a beam type pressure sensor. A notch is provided at the position where the support plate fixedly installs the pressure sensor. One end of the pressure sensor is fixed on the support plate, and the other end extends into the notch, so that the other end is suspended at the notch, and its upper surface is fixedly installed on the lower surface of the operation platform.

[0019] Preferably, the operation platform includes a platform bottom plate and a panel located above the platform bottom plate. A concave cavity recessed into the upper surface of the platform bottom plate is provided on the upper surface of the platform bottom plate, and a suction hole penetrating through the platform bottom plate is provided. The suction hole is communicated with an external air extraction device.

[0020] The panel is fixedly installed on the upper surface of the platform bottom plate to seal the concave cavity, and a plurality of air permeable holes arranged in a matrix are provided on the surface of the panel to communicate the sealed concave cavity with the upper space of the panel.

[0021] Preferably, a number of support bosses are also provided inside the concave cavity. The support bosses are in contact with the lower surface of the panel. Correspondingly, a number of ventilation channels are provided at the position where the lower surface of the panel contacts the support bosses. The ventilation channels communicate with the air-permeable holes on the contact surface between the support bosses and the panel, and at least one end point of the ventilation channel is located outside the contact surface between the support bosses and the panel.

[0022] Preferably, the support base is a DD motor. The output shaft of the DD motor is fixedly connected to the operation platform for driving the operation platform to rotate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] The technical solution provided by the present invention is to detect the gravity and pressure of the workpiece on the operation platform in real time by providing a gravity pressure detection device below the operation platform. At the same time, the gravity pressure detection device adopts a structure combining a gravity sensor and a balance plate, which can effectively ensure the levelness of the upper surface of the operation platform and prevent inaccurate detection caused by plane inclination. Moreover, a guiding mechanism is provided on the gravity pressure detection device to further ensure the verticality and stability of the operation platform when the operation platform descends under the gravity of the workpiece and the acting force exerted by the external operating component on the workpiece during processing, avoiding the situation that the operation platform shakes and vibrates during the descending process, thereby affecting the detection accuracy, and effectively ensuring the detection accuracy.

[0025] At the same time, to ensure that there are not too many components on the operation platform to interfere with the detection of the gravity pressure detection device, the operation platform adopts a structure combining a platform bottom plate and a panel. A concave cavity and air suction holes are provided on the bottom plate, and when the panel seals the concave cavity, air-permeable holes are provided on the panel. The above structure can fix the workpiece on the panel under the negative pressure of the concave cavity, avoiding the situation of setting a fixing device on the panel, thereby reducing the pressure on the gravity pressure detection device as a whole, and further ensuring the detection accuracy of the gravity pressure detection device. Thus, after the external device collects the gravity data detected by the gravity pressure detection device, it can timely adjust the acting force applied, effectively preventing the workpiece from being damaged.

[0026] The following further describes the present invention in conjunction with the specification drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention.

[0028] Figure 2 is an exploded structural diagram of the present invention.

[0029] Figure 3 It is a schematic structural diagram of the assembly of the support plate and the gravity pressure detection device in the present invention.

[0030] Figure 4 is Figure 3 exploded structural diagram of.

[0031] Figure 5 It is a schematic structural diagram of the operation platform in the present invention.

[0032] Figure 6 It is a schematic structural diagram of the platform bottom plate in the present invention.

[0033] Figure 7 It is a schematic structural diagram of the back surface of the panel in the present invention. Specific embodiments

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Please refer to Figure 1-2 , an automatic workpiece gravity pressure detection platform disclosed in an embodiment of the present invention includes a support base 210. For convenient installation and fixation, a base 200 can be fixedly connected below the support base 210. The base 200 is used to install the platform disclosed in the embodiment of the present invention on an external device, avoiding direct connection between the external device and the platform support base 210. A support plate 220 is fixedly installed on the upper surface of the support base 210. The support base 210 lifts the support plate 220 to make it suspended. A gravity pressure detection device 300 is fixedly arranged on the upper surface of the support plate 220. The gravity pressure detection device 300 is four and is respectively arranged at the four corners of the support plate 220. Of course, it can be three arranged in an isosceles triangle, or multiple arranged in a matrix. An operation platform 100 is arranged on the plane formed by the upper surface of the gravity pressure detection device 300. The operation platform 100 is connected to the upper surfaces of multiple gravity pressure detection devices 300. The operation platform 100 is used to place the workpiece to be processed. The gravity pressure detection device 300 is used to detect the gravity of the workpiece on the operation platform 100 and the magnitude of the force exerted on the workpiece by the operating component during the production and processing of the workpiece. At the same time, the external device collects the gravity pressure signal detected by the gravity pressure detection device 300.

[0036] Please refer to Figure 3-4, wherein, the gravity pressure detection device 300 includes a pressure sensor 310. The pressure sensor 310 is fixedly installed on the support plate 210. A balance plate 320 is installed between the pressure sensor 310 and the operation platform 100. The upper surface of the balance plate 320 is fixedly connected to the lower surface of the operation platform 100, and the lower surface of the balance plate 320 is fixedly connected to the upper surface of the pressure sensor 310, so that the pressure sensor 310 is not in direct contact with the operation platform 100, preventing high-temperature heat, impact force, etc. generated during the production and processing of the workpiece placed on the operation platform 100 from directly acting on the pressure sensor 310 and damaging the pressure sensor 310 and affecting the detection pressure accuracy. At the same time, the balance plate 320 isolates the pressure sensor 310 from the operation platform 100, and can adjust the upper surface of the operation platform 100 into a horizontal surface through the balance plate 320, preventing the occurrence of inclination, thereby affecting the different pressure signals received by each pressure sensor 310 and affecting the detection of the pressure sensor 310.

[0037] Furthermore, the gravity pressure detection device 300 further has a guiding mechanism 330. The guiding mechanism 300 is arranged beside the pressure sensor 310 and includes a first guiding block 331, a second guiding block 332 and a guide rod 333. Among them, the first guiding block 331 is located above the support plate 220, and the upper surface of the first guiding block 331 is fixedly connected to the lower surface of the balance plate 320; the second guiding block 332 is arranged below the support plate 220, and is symmetrically arranged with the first guiding block 331. Its upper surface is fixedly connected to the lower surface of the support plate 220, and a sliding hole 334 for the guide rod 333 to penetrate and slide therein is opened on both the second guiding block 332 and the support plate 220; one end of the guide rod 333 is fixedly connected to the first guiding block 331, and the other end passes through the sliding hole 334 and protrudes from the lower surface of the second guiding block 332.

[0038] When a workpiece is placed on the operation platform 100 and processed, the operation platform 100 is subject to the gravity of the workpiece and the force exerted on the workpiece by the external operating component, showing a downward movement trend, so that the pressure sensor 310 detects the pressure gravity signal. At the same time, under the action of the guiding mechanism 330, the operation platform 100 can only move along the direction of the guide rod 333 of the guiding mechanism 330 during the downward movement, preventing the operation platform 100 from shaking or swinging during the downward movement, thus affecting the acquisition of the pressure signal of the pressure sensor 310.

[0039] Further, the pressure sensor 310 is a beam-type pressure sensor, and a notch 221 is provided at the position where the pressure sensor 310 is fixedly installed on the support plate 220. One end of the pressure sensor 310 is fixedly installed on the support plate 220, and the other end extends towards the notch 221, so that the other end is suspended at the notch 221, and its upper surface is fixedly installed on the lower surface of the operation platform 100. When a workpiece is placed on the operation platform 100 for processing, the operation platform 100 moves downward under the gravity of the workpiece and the acting force exerted on the workpiece by an external operating component. At this time, the end of the pressure sensor 310 suspended at the notch 221 bends downward, so that the pressure sensor 310 detects the gravity data during this process and feeds it back, enabling the gravity and the acting force of the workpiece on the platform to be detected in real time, which is convenient for the external operating component to make adjustments.

[0040] Please refer to Figure 5-7 , further, the operation platform 100 includes a platform bottom plate 110 and a panel 120 disposed on the platform bottom plate 110. A concave cavity 111 recessed into its upper surface is provided on the upper surface of the platform bottom plate 110, and a suction hole 112 penetrating the platform bottom plate 110, and the suction hole 112 is communicated with an external air extraction device, so that when the external air extraction device operates, air in the concave cavity 111 can be extracted through the suction hole 112.

[0041] The panel 120 is fixedly installed on the upper surface of the platform bottom plate 110, so that the concave cavity 111 can be closed. At the same time, a plurality of air-permeable holes 121 arranged in a matrix are provided on the panel 120, so that when the panel 120 closes the concave cavity 111, the closed concave cavity 111 can be communicated with the external space above the panel 120 through the air-permeable holes 121.

[0042] This structure is set to further fix the workpiece on the panel 120. For example, for small and ultra-thin workpieces on the operation platform 100, it is difficult to clamp and fix them. And when a fixing device for clamping and fixing the workpiece is provided on the operation platform 100, it will also increase the overall pressure borne by the pressure sensor 310, and there may also be a situation where the weighing detection is unstable. This structure can effectively avoid this situation and can effectively fix the workpiece on the operation platform 100: when a workpiece is placed on the panel 120, the external air extraction device will extract the air in the concave cavity 111 through the air suction holes 112, so that a negative pressure is formed in the concave cavity 111. At the same time, the concave cavity 111 is communicated with the space on the upper surface of the panel 120 through the air permeable holes 121 on the panel 120, so that the workpiece placed on the panel 120 is adsorbed by the panel 120 under the action of the negative pressure in the concave cavity 111, and then fixed on the panel 120 for the external operating components to process.

[0043] Furthermore, in order to ensure the support strength of the panel 120 when the workpiece is placed on the panel 120 and prevent the panel 120 from being deformed by the workpiece and the pressure during production and processing, several support bosses 113 protruding from the bottom surface of the concave cavity 111 are provided in the concave cavity 11 of the platform bottom plate 110. The height of the support platform 113 is the same as the depth of the concave cavity 111, which can support the panel 120 fixedly installed on the platform base 110 and prevent the panel 120 from deforming when the workpiece and processing the workpiece. When the support boss 113 supports the panel 120, the upper surface of the support boss 113 will contact the lower surface of the panel 120, and at this time, the air permeable hole 121 here will be blocked, thus affecting the adsorption of the workpiece on the panel 120 by the panel 120. At this time, a ventilation channel 122 is opened at a position on the lower surface of the panel 120 corresponding to the support boss 113. The ventilation channel 122 connects the air permeable hole 121 on the contact surface between the support boss 113 and the panel 120, and at least one end point of the ventilation channel 122 is located outside the contact surface between the support boss 113 and the panel 120, so that the air permeable hole 121 on the contact surface between the support boss 113 and the panel 120 is communicated with the concave cavity 111 through the connection of the ventilation channel 122 and is not blocked by the support boss 113.

[0044] Furthermore, the support base 210 is a DD motor, and the output shaft of the DD motor is connected to the operation platform 100. Thus, the operation platform 100 can rotate under the action of the DD motor, so that the workpiece on the operation platform 100 can be rotated at various angles, which is convenient for the external operating components to process it.

[0045] Those skilled in the art can obtain various corresponding changes and deformations according to the structures and principles disclosed in the present invention, and all such changes and deformations fall within the protection scope of the present invention.

Claims

1. An automatic workpiece gravity and pressure detection platform, characterized in that, it includes an operation platform for placing a workpiece for processing; a support base fixedly arranged below the operation platform; a support plate fixedly arranged on the support base; a gravity and pressure detection device, which is a plurality of and is arranged between the support plate and the operation platform for detecting the gravity and pressure of the workpiece on the operation platform; the gravity and pressure detection device includes: a pressure sensor fixedly installed on the support plate; a balance plate arranged between the pressure sensor and the operation platform, and the lower surface of the balance plate is fixedly connected to the pressure sensor, and its upper surface is fixedly connected to the lower surface of the operation platform, so that the pressure sensor is indirectly connected to the operation platform; the operation platform includes a platform bottom plate and a panel located above the platform bottom plate. A cavity recessed into the upper surface of the platform bottom plate and an air suction hole penetrating through the platform bottom plate are provided on the upper surface of the platform bottom plate. The air suction hole is for communicating with an external air extraction device, the panel is fixedly installed on the upper surface of the platform bottom plate to seal the cavity, and a plurality of air permeable holes arranged in a matrix are provided on the surface of the panel for communicating the sealed cavity with the upper space of the panel; a plurality of support bosses are further arranged inside the cavity. The support bosses are in contact with the lower surface of the panel. Correspondingly, a plurality of ventilation channels are provided on the lower surface of the panel at the contact positions between the panel and the support bosses. The ventilation channels communicate with the air permeable holes at the contact surfaces between the support bosses and the panel, and at least one end point of the ventilation channels is located outside the contact surfaces between the support bosses and the panel.

2. The automatic workpiece gravity and pressure detection platform according to claim 1, characterized in that, the gravity and pressure detection device further includes a guiding mechanism arranged beside the pressure sensor, which includes a first guiding block, a second guiding block and a guide rod; the first guiding block is located above the support plate, and the upper surface of the first guiding block is fixedly connected to the lower surface of the balance plate; the second guiding block is symmetrically located below the support plate in a mirror image with the first guiding block. The upper surface of the second guiding block is fixedly connected to the lower surface of the support plate, and sliding holes for the guide rod to penetrate and slide are provided on the second guiding block and the support plate; one end of the guide rod is fixedly connected to the first guiding block, and the other end passes through the sliding hole and protrudes from the lower surface of the second guiding block.

3. The automatic workpiece gravity and pressure detection platform according to claim 1, characterized in that, the gravity and pressure detection devices are four and are respectively located at the four corner edges of the support plate.

4. The automatic workpiece gravity and pressure detection platform according to claim 3, characterized in that, The pressure sensor is a beam-type pressure sensor. A notch is provided at the position where the support plate fixedly installs the pressure sensor. One end of the pressure sensor is fixed on the support plate, and the other end extends into the notch, so that the other end is suspended at the notch, and its upper surface is fixedly installed on the lower surface of the operation platform.

5. An automatic workpiece gravity pressure detection platform according to any one of claims 1 to 4, characterized in that the support base is a direct drive (DD) motor, and the output shaft of the DD motor is fixedly connected to the operation platform to drive the operation platform to rotate.

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