Quick-changing tray device

Abstract

The invention discloses a quick-change tray device which is used for being matched with a part positioning base, a workpiece is clamped through the part positioning base, and the bottom of the workpiece is connected with the quick-change tray device through a connecting pipe penetrating through the part positioning base. The working table comprises a working table base body, a working table cover body, a plurality of clamping and positioning rings, an upper connector cover, a one-way valve and a vacuum cover, wherein the clamping and positioning rings, the upper connector cover and the one-way valve are arranged in the lower portion of the working table base body, and the vacuum cover is arranged above the working table cover body and matched with the upper connector cover. The zero-point positioning base comprises a zero-point positioning base body, a pipe connector arranged below the zero-point positioning base body, a clamping mechanism, a vacuum quick-change connector and a pressing connector cover, wherein the clamping mechanism, the vacuum quick-change connector and the pressing connector cover are arranged above the zero-point positioning base body and arranged in the clamping positioning ring. According to the invention, the annular groove in the inner side of the clamping positioning ring is matched with the movable bulge of the clamping mechanism, so that the micron-level positioning precision can be realized; the one-way valve is used for being communicated with the vacuum quick-change connector in a pressed mode, vacuum adsorption treatment can be conducted on a workpiece on the workbench, and after the workbench is separated from the zero-point positioning base, the one-way valve has a good pressure maintaining effect, so that the workpiece has good precision retentivity on the workbench.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a quick-change pallet device. Background Art

[0002] Pallets are a commonly used equipment in the mechanical field, mainly used to transport workpieces, especially when the workpiece surface accuracy and quality requirements are high and cannot be directly touched, the application of pallets is more important. Pallets are also an effective means for efficient operation and process standardization of most semi-automated and automated production lines. However, for workpieces that require multiple processes to be processed and need to be transported, the workpieces often vibrate or deflect on the pallet, and the actual processing benchmark deviates from the theoretical processing benchmark, which has a greater impact on the processing accuracy of the workpiece.

[0003] In order to maintain the position accuracy of the workpiece on the pallet, a mechanical structure is generally added to the pallet, but the universality of workpieces of different sizes and types is poor, and parts with high surface accuracy requirements are prone to scratches. Adding an in-situ detection mechanism to the processing device is also a means, but the process is complicated, the cost is increased, and the overall working time will also be extended. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a quick-change pallet device to keep the workpiece from shifting on the pallet device and improve the processing accuracy.

[0005] The present invention solves the above problems through the following technical solutions:

[0006] A quick-change pallet device is used to cooperate with a part positioning base to lift a workpiece; the workpiece is clamped by the part positioning base and the bottom of the workpiece is connected to the quick-change pallet device through a connecting pipe that penetrates the part positioning base;

[0007] The quick-change tray device is composed of a workbench and a zero-point positioning base, wherein the workbench includes: a workbench base, a workbench cover, a plurality of clamping and positioning rings arranged below the workbench base, an upper joint cover and a one-way valve, and a vacuum cover arranged above the workbench cover and matched with the upper joint cover, the workbench cover covers the top of the workbench base, and the one-way valve runs through the upper joint cover and the vacuum cover;

[0008] The zero point positioning base includes: a zero point positioning base base, a pipe joint arranged below the zero point positioning base base, and a clamping mechanism arranged in a clamping positioning ring above the zero point positioning base base, a vacuum quick-change joint and a press-down joint cover. The vacuum quick-change joint is arranged through the press-down joint cover. The upper end of the vacuum quick-change joint is connected to the one-way valve, and the lower end is connected to the pipe joint.

[0009] As a further improvement, a plurality of first circular bosses are evenly arranged on the workbench base, and a clamping positioning ring is installed in the first circular boss;

[0010] A plurality of second circular bosses corresponding to the first circular bosses are evenly arranged on the base of the zero point positioning base, and a clamping mechanism is provided on the second circular bosses;

[0011] When the workbench is placed on the zero-point positioning base, the clamping positioning ring is sleeved outside the clamping mechanism, the clamping mechanism takes effect, and the clamping positioning ring is limited. The workbench bears the pressure of the workpiece, and the vacuum cover and the one-way valve arranged therein are squeezed, so that the one-way valve is connected to the vacuum quick-change connector; the other end of the vacuum quick-change connector is connected to the air pump through a pipe joint, so as to connect the air pump-vacuum quick-change connector-one-way valve-connecting pipe-workpiece in sequence to achieve adsorption of the workpiece; and when the workbench is separated from the zero-point positioning base, the one-way valve plays a role in maintaining pressure.

[0012] As a further improvement, the clamping and positioning ring is installed in the first circular boss by means of bolts.

[0013] As a further improvement, an annular groove is provided on the inner side of the clamping positioning ring, and a retractable movable protrusion is correspondingly provided on the clamping mechanism. The annular groove cooperates with the movable protrusion to achieve the fixation and positioning of the workbench and the zero-point positioning base.

[0014] As a further improvement, the clamping mechanism is a columnar structure with a diameter decreasing from top to bottom, and a plurality of movable protrusions are evenly distributed on the periphery of the clamping mechanism and can slide up and down along the peripheral inclined surface of the clamping mechanism to achieve inward and outward extension and retraction of the movable protrusions through the inclination of the peripheral inclined surface.

[0015] As a further improvement, the extension and retraction of the movable protrusion is controlled by a solenoid valve.

[0016] As a further improvement, the clamping and positioning rings and the clamping mechanisms are provided in no less than three numbers and correspond one to one.

[0017] As a further improvement, the number of the clamping and positioning rings and the number of the clamping mechanisms are respectively four.

[0018] As a further improvement, the one-way valve and the vacuum quick-change connector are respectively provided with no less than two, and correspond one to one.

[0019] As a further improvement, the connecting pipe is arranged outside the one-way valve in the vacuum cover to connect the one-way valve with the connecting pipe.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] (1) The inner side of the clamping and positioning ring of the present invention is provided with an annular groove, and the clamping mechanism is provided with a movable protrusion at a corresponding position. A plurality of clamping and positioning rings cooperate with the clamping mechanism to achieve micron-level positioning accuracy.

[0022] (2) The present invention uses a one-way valve and a vacuum quick-change joint. When the workbench and the part positioning base are matched, the vacuum quick-change joint is compressed and connected to the one-way valve, so that the workpiece on the workbench can be vacuum adsorbed. After the workbench and the zero-point positioning base are separated, the one-way valve has a good pressure-maintaining effect, so that the workpiece has good precision retention on the workbench.

[0023] (3) The movable protrusion of the clamping mechanism of the present invention can be controlled to extend and retract by a solenoid valve, which is easy to realize automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the cooperation between a quick-change tray device, a parts positioning base and a workpiece according to the present invention;

[0025] Figure 2 It is a structural schematic diagram of a quick-change tray device of the present invention;

[0026] Figure 3 It is a bottom view schematic diagram of the workbench of the present invention;

[0027] Figure 4 It is a top view schematic diagram of the workbench of the present invention;

[0028] Figure 5 It is a side schematic diagram of the zero-point positioning base of the present invention;

[0029] Figure 6 It is a top view schematic diagram of the zero-point positioning base of the present invention.

[0030] Reference numerals:

[0031] 1. Workbench; 2. Zero point positioning base; 3. Workbench base; 4. Clamping positioning ring; 5. Upper joint cover; 6. One-way valve; 7. Vacuum cover; 8. Pipe joint; 9. Clamping mechanism; 10. Vacuum quick-change joint; 11. Press-down joint cover; 12. Zero point positioning base base; 13. Movable protrusion; 14. Part positioning base; 15. Workpiece; 16. Connecting pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0033] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0037] The following will be combined Figure 1-6 , a quick-change tray device involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0038] Example

[0039] Combined with Figure 1-6As shown, a quick-change pallet device is used to cooperate with a part positioning base 14 to lift a workpiece 15; the workpiece is clamped by the part positioning base and the bottom of the workpiece is connected to the quick-change pallet device through a connecting pipe 16 that penetrates the part positioning base;

[0040] The quick-change pallet device, the main body of which is composed of a workbench 1, a zero-point positioning base 2, etc. Among them, the workbench 1 includes: a workbench base 3, a workbench cover, a plurality of clamping and positioning rings 4 arranged below the workbench base, an upper joint cover 5 and a one-way valve 6, and a vacuum cover 7 arranged above the workbench cover and matched with the upper joint cover 5. The workbench base 3 is covered with a workbench cover, the vacuum cover 7 is arranged on the workbench cover, and the one-way valve 6 passes through the upper joint cover 5 and the vacuum cover 7;

[0041] The zero point positioning base 2 includes: a zero point positioning base base 12, a pipe joint 8 arranged below the zero point positioning base base 12, and a clamping mechanism 9 arranged above the zero point positioning base base 12 and arranged in a clamping positioning ring 4, a vacuum quick-change joint 10 and a downward pressure joint cover 11. The vacuum quick-change joint 10 is arranged through the downward pressure joint cover 11. The upper end of the vacuum quick-change joint 10 is connected to the one-way valve 6, and the lower end is connected to the pipe joint 8.

[0042] Specifically, a number of circular bosses are evenly arranged on the workbench base 3, and clamping positioning rings 4 are installed in the circular bosses through bolts, and the clamping positioning rings have a certain degree of freedom in the circumferential direction; the clamping positioning rings 4 are sleeved on the outside of the clamping mechanism 9 above the zero point positioning base 2, and the clamping positioning rings 4 cooperate with the clamping mechanism 9 to limit the installation of the clamping positioning rings 4. A vacuum quick-change joint 10 is installed on the zero-point positioning base 2 by pressing down the joint cover 11, and the vacuum quick-change joint 10 is used in conjunction with the one-way valve 6 of the workbench 1; the workbench 1 is placed on the zero-point positioning base 2, and the clamping mechanism 9 takes effect to limit the clamping positioning ring 4. The workbench 1 bears the pressure of the workpiece, squeezes the vacuum cover 7 and the one-way valve 6 arranged therein, and compresses the vacuum quick-change joint 10 through the one-way valve 6, so that the one-way valve 6 is connected to the vacuum quick-change joint 10; the other end of the vacuum quick-change joint 10 is connected to a pipe joint 8, and the pipe joint 8 on the lower side of the zero-point positioning base 2 can be connected to the air pump for vacuum treatment, so as to connect the air pump-vacuum quick-change joint 10-one-way valve 6-connecting pipe-workpiece in sequence to achieve adsorption of the workpiece; when the workbench 1 is separated from the zero-point positioning base 2, the existence of the one-way valve 6 can play a role in maintaining pressure.

[0043] In an optional embodiment, four circular bosses are evenly distributed on the periphery of the workbench base 3 of the workbench 1 and the zero point positioning base base 12 of the zero point positioning base 2, corresponding to each other. A clamping positioning ring 4 is installed in the first circular boss on the workbench base 3, and a clamping mechanism 9 is installed on the second circular boss on the zero point positioning base base 12.

[0044] Preferably, an annular groove is provided on the inner side of the clamping and positioning ring 4, and a retractable active protrusion 13 is provided at a corresponding position of the clamping mechanism 9, which can be extended and retracted. When the workbench 1 is placed on the zero-point positioning base 2, the active protrusion 13 on the clamping mechanism 9 extends and snaps into the annular groove built into the clamping and positioning ring 4, so as to fix and position the workbench 1 and the zero-point positioning base 2, and the positioning accuracy can reach the micron level. Optionally, the clamping mechanism 9 can be controlled to extend and retract by a solenoid valve, which is conducive to realizing the automated process of the positioning and clamping functions of the quick-change tray device.

[0045] Furthermore, the vacuum quick-change joint 10 on the zero-point positioning base 2 has a telescopic property. When the vacuum quick-change joint 10 is compressed, it will be connected to the outside world, and when it returns to its original state, it will be isolated from the outside world.

[0046] In this embodiment, the clamping mechanism 9 is a columnar structure with a decreasing diameter from top to bottom, and a plurality of movable protrusions 13 are evenly distributed on the periphery of the clamping mechanism 9, and can slide up and down along the outer peripheral inclined surface of the clamping mechanism 9, so as to realize the inward and outward expansion and contraction of the movable protrusion 13 through the inclination of the outer peripheral inclined surface itself. When the annular groove on the inner side of the clamping positioning ring 4 cooperates with the movable protrusion 13 of the clamping mechanism 9, the movable protrusion 13 slides downward along the outer peripheral inclined surface of the clamping mechanism 9, so that the vacuum quick-change joint 10 cooperates with the one-way valve 6. That is, after the clamping mechanism 9 takes effect, the vacuum quick-change joint 10 is compressed and communicated with the one-way valve 6, and the zero-point positioning base 2 is connected to the air pump through the pipe joint 8, and a vacuum treatment is performed, so that the workpiece is adsorbed on the surface of the workbench. After the workbench 1 is separated from the zero-point positioning base 2, the one-way valve 6 will prevent air from entering, and has a pressure-maintaining effect, so that the workbench 1 still adsorbs the workpiece on its surface during the movement.

[0047] In another optional embodiment, the number of the clamping and positioning rings 4 and the number of the clamping mechanisms 9 are not less than three and correspond to each other. In this embodiment, the number of the clamping and positioning rings 4 and the number of the clamping mechanisms 9 are four respectively.

[0048] The one-way valve 6 and the vacuum quick-change connector 10 are respectively provided with no less than two, and correspond one to one. In this embodiment, the one-way valve 6 and the vacuum quick-change connector 10 are respectively provided with two, and the connecting pipe is arranged outside the one-way valve 6 in the vacuum cover 7 to connect the one-way valve 6 with the connecting pipe.

[0049] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are only preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A quick-change tray device, characterized in that: Used to cooperate with the part positioning base to realize the lifting of the workpiece; the workpiece is clamped by the part positioning base and the bottom of the workpiece is connected to the quick-change pallet device through a connecting pipe that penetrates the part positioning base; The quick-change tray device is composed of a workbench and a zero-point positioning base, wherein the workbench includes: a workbench base, a workbench cover, a plurality of clamping and positioning rings arranged below the workbench base, an upper joint cover and a one-way valve, and a vacuum cover arranged above the workbench cover and matched with the upper joint cover, the workbench cover covers the top of the workbench base, and the one-way valve runs through the upper joint cover and the vacuum cover; The zero point positioning base includes: a zero point positioning base base, a pipe joint arranged below the zero point positioning base base, and a clamping mechanism arranged in a clamping positioning ring above the zero point positioning base base, a vacuum quick-change joint and a press-down joint cover. The vacuum quick-change joint is arranged through the press-down joint cover. The upper end of the vacuum quick-change joint is connected to the one-way valve, and the lower end is connected to the pipe joint.

2. A quick-change tray device according to claim 1, characterized in that: A plurality of first circular bosses are evenly arranged on the workbench base, and a clamping and positioning ring is installed in the first circular bosses; A plurality of second circular bosses corresponding to the first circular bosses are evenly arranged on the base of the zero point positioning base, and a clamping mechanism is provided on the second circular bosses; When the workbench is placed on the zero-point positioning base, the clamping positioning ring is sleeved outside the clamping mechanism, the clamping mechanism takes effect, and the clamping positioning ring is limited. The workbench bears the pressure of the workpiece, and the vacuum cover and the one-way valve arranged therein are squeezed, so that the one-way valve is connected to the vacuum quick-change connector; the other end of the vacuum quick-change connector is connected to the air pump through a pipe joint, so as to connect the air pump-vacuum quick-change connector-one-way valve-connecting pipe-workpiece in sequence to achieve adsorption of the workpiece; and when the workbench is separated from the zero-point positioning base, the one-way valve plays a role in maintaining pressure.

3. A quick-change tray device according to claim 2, characterized in that: The clamping and positioning ring is installed in the first circular boss by means of bolts.

4. The quick-change tray device according to claim 1, characterized in that: An annular groove is arranged inside the clamping and positioning ring, and a retractable movable protrusion is correspondingly arranged on the clamping mechanism. The fixing and positioning of the workbench and the zero-point positioning base are achieved by the cooperation between the annular groove and the movable protrusion.

5. A quick-change tray device according to claim 4, characterized in that: The clamping mechanism is a columnar structure with a diameter decreasing from top to bottom. Several movable protrusions are evenly distributed on the periphery of the clamping mechanism and can slide up and down along the peripheral inclined surface of the clamping mechanism to achieve inward and outward extension of the movable protrusions through the inclination of the peripheral inclined surface.

6. The quick-change tray device according to claim 4, characterized in that: The extension and retraction of the movable protrusion is controlled by a solenoid valve.

7. A quick-change tray device according to any one of claims 1 to 6, characterized in that: The clamping and positioning rings and the clamping mechanisms are arranged in no less than three numbers and correspond one to one.

8. The quick-change tray device according to claim 7, characterized in that: The number of the clamping and positioning rings and the number of the clamping mechanisms are respectively four.

9. A quick-change tray device according to any one of claims 1 to 6, characterized in that: The one-way valve and the vacuum quick-change connector are respectively provided with no less than two and correspond one to one.

10. The quick-change tray device according to claim 9, characterized in that: The connecting pipe is arranged outside the one-way valve in the vacuum cover to connect the one-way valve with the connecting pipe.

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