Double-sided vacuum chuck supporting structure and supporting assembly

Abstract

The utility model belongs to the technical field of glass carving, and particularly relates to a double-sided vacuum chuck supporting structure and a supporting assembly. The suction cup comprises a telescopic supporting rod and two suction cups, the back faces of the two opposite suction cups are connected to the two ends of the telescopic supporting rod respectively, negative pressure cavities are formed in the front faces of the suction cups, and air holes communicated with the negative pressure cavities are formed in the suction cups. The problem that the height of the supporting suction cup is difficult to adjust is solved. The suction cups at the two ends of the telescopic supporting rod are fixed to the machine tool and the bottom of a product correspondingly, so that the product can be stably fixed to the machine tool, the telescopic supporting rod can freely stretch out and draw back to adjust the height, products of different thicknesses can be effectively lifted to the proper height, and replacement of the suction cups of different specifications is avoided; and the problem that the sucker with the fixed height specification easily exceeds the Z-axis limit of the machine tool is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass engraving, and particularly relates to a double-sided vacuum sucker support structure and a support assembly. Background Art

[0002] When engraving glass by using a machine tool, it is usually necessary to place a support sucker between the bottom of the glass product and the machine tool tabletop. The glass product is fixed on the machine tool tabletop by the adsorption force of the sucker, providing stable support for the object to be engraved. Whether it is a small engraving part or a workpiece with a larger size, the sucker can ensure that it will not move or shake during the engraving process, thus ensuring the accuracy and quality of the engraving.

[0003] At present, when the support sucker is in use, it mostly has a fixed-size height. When the height and thickness of the glass product are relatively large, the height of the glass plus the support sucker is likely to exceed the Z-axis limit of the machine tool, resulting in the machine tool being unable to work properly, so it is necessary to purchase sucker products with multiple height specifications at the same time; in addition, after the sucker is placed and fixed, the flatness of the glass surface usually needs to be finely adjusted, but the support sucker with a fixed height usually cannot directly adjust the height and needs to be adjusted in cooperation with other gaskets, and the adjustment is relatively complicated and troublesome, resulting in low production efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a double-sided vacuum sucker support structure and a support assembly for solving the problem that the height of the support sucker is not easy to adjust.

[0005] On the one hand, the technical solution of the utility model for solving the above technical problem is as follows: a double-sided vacuum sucker support structure, which includes:

[0006] A telescopic support rod;

[0007] Two suckers, the backs of the two suckers arranged back to back are respectively connected to both ends of the telescopic support rod. A negative pressure chamber is formed on the front surface of the sucker, and an air hole communicating with the negative pressure chamber is formed on the sucker.

[0008] Compared with the prior art, the above technical solution has the following beneficial effects:

[0009] By fixing the suckers at both ends of the telescopic support rod on the machine tool and the bottom of the product respectively, the product can be stably fixed on the machine tool. The telescopic support rod can freely stretch and adjust the height, so that products with different thicknesses can be effectively lifted to a suitable height, avoiding the replacement of suckers with different specifications and the problem that the sucker with a fixed height specification is likely to exceed the Z-axis limit of the machine tool.

[0010] On the basis of the above technical solution, the embodiments of the present application can also be improved as follows:

[0011] In one embodiment, an annular groove is formed on the peripheral edge of the front surface of the suction cup, and a sealing ring is arranged in the annular groove.

[0012] In one embodiment, both ends of the telescopic support rod are detachably connected to the two suction cups.

[0013] In one embodiment, a groove is formed on the back surface of the suction cup. Two fastening rings that are screwed to the groove are sleeved at both ends of the telescopic support rod in a matching manner, and a limiting ring for abutting against the inner end surface of the fastening ring is arranged at the end of the telescopic support rod extending into the groove.

[0014] In one embodiment, the limiting ring is in axial clearance fit between the fastening ring and the groove.

[0015] In one embodiment, a sliding ring that contacts the surface of the limiting ring away from the fastening ring is arranged at the bottom of the groove to reduce the friction between the telescopic support rod and the groove.

[0016] In one embodiment, the fastening ring includes:

[0017] A ring body that is sleeved on the telescopic support rod in a matching manner, and an external thread is arranged on the outer periphery of the ring body;

[0018] A stepped ring that is arranged at one end of the ring body away from the limiting ring, and a stepped surface that abuts against the back surface of the suction cup is formed on the stepped ring.

[0019] In one embodiment, the telescopic support rod includes:

[0020] Two support screws, and one ends of the two support screws are respectively connected to the back surface of the suction cup;

[0021] An adjusting nut; the two ends of the adjusting nut are respectively screwed to the other ends of the two support screws, and rotating the adjusting nut is used to change the distance between the two support screws.

[0022] On the other hand, the present utility model also discloses a support assembly, which includes: the above-mentioned double-sided vacuum suction cup support structure;

[0023] A plurality of connecting telescopic rods, and both ends of which are hinged to the double-sided vacuum suction cup support structure. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0026] Figure 2 is Figure 1 the schematic cross-sectional structure diagram of.

[0027] Reference numerals:

[0028] 1, telescopic support rod; 2, suction cup; 3, negative pressure chamber; 4, air hole; 5, annular groove; 6, sealing ring;

[0029] 7, groove; 8, fastening ring; 9, limiting ring; 10, sliding ring;

[0030] 101, support screw; 102, adjusting nut;

[0031] 801, ring body; 802, stepped ring; 803, stepped surface. Specific embodiments

[0032] The following will describe in detail the embodiments of the technical solutions of the present utility model in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0033] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0034] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0035] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0036] In this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] Embodiment 1

[0038] As Figure 1 shown, a double-sided vacuum chuck 2 support structure provided by the present utility model includes: a telescopic support rod 1 and two chucks 2.

[0039] The two chucks 2 are arranged back to back, the backs of the two chucks 2 are respectively connected to both ends of the telescopic support rod 1, the front of the chuck 2 is used for adsorbing to the glass and the workbench surface, a negative pressure cavity 3 is formed on the front of the chuck 2, and an air hole 4 communicating with the negative pressure cavity 3 is formed on the chuck 2. The air hole 4 is used for inserting an air pipe to connect with an external air source, and a strong adsorption force is formed in the negative pressure cavity 3 by pumping vacuum.

[0040] By fixing the chucks 2 at both ends of the telescopic support rod 1 to the machine tool and the bottom of the product respectively, the product can be stably fixed on the machine tool. The telescopic support rod 1 can freely stretch and adjust the height, so that products with different thicknesses can be effectively lifted to a suitable height, avoiding the replacement of chucks 2 with different specifications, and avoiding the problem that the chucks 2 with a fixed height specification are likely to exceed the Z-axis limit of the machine tool.

[0041] To improve the sealing effect of the negative pressure cavity 3 on the front of the chuck 2, an annular groove 5 is formed on the peripheral edge of the front of the chuck 2, and a sealing ring 6 is arranged in the annular groove 5;

[0042] Wherein the sealing ring 6 protrudes from the annular groove 5, so that when the front of the chuck 2 contacts the glass or the table surface is released, the sealing ring 6 contacts first, avoiding scratching the surface of the product. At the same time, after being extruded and deformed, the sealing ring 6 can be partially or completely accommodated in the annular groove 5.

[0043] To facilitate the replacement of the chuck 2 or the telescopic support rod 1, both ends of the telescopic support rod 1 and the backs of the two chucks 2 are arranged to be detachably connected, and specifically, a detachable connection can be formed by means such as threaded connection.

[0044] In an embodiment, the telescopic support rod 1 includes: two support screws 101 and adjusting nuts 102.

[0045] One end of each of the two support screws 101 is respectively connected to the back surface of the suction cup 2. Both ends of the adjusting nut 102 are respectively screwed to the other ends of the two support screws 101. Rotating the adjusting nut 102 is used to change the distance between the two support screws 101. By providing internal threads with different helix directions in the adjusting nut 102 and respectively engaging with the two support screws 101, when the adjusting nut 102 is rotated, the two support screws 101 can rotate simultaneously to change the distance between the two support screws 101, thereby realizing the adjustment of the entire length of the telescopic support rod 1, and further realizing the height adjustment.

[0046] In an embodiment, a groove 7 is formed on the back surface of the suction cup 2. Two fastening rings 8 that are screwed to the groove 7 are respectively and fittingly sleeved on both ends of the telescopic support rod 1. A limiting ring 9 for abutting against the inner end surface of the fastening ring 8 is provided at the end of the telescopic support rod 1 extending into the groove 7. Here, the inner end surface is the end surface of the fastening ring 8 close to the groove 7. The limiting ring 9 is limited between the fastening ring 8 and the groove 7, preventing the telescopic support rod 1 from disengaging from the groove 7 after the fastening ring 8 is fixed in the groove 7.

[0047] Specifically, internal threads are provided on the inner wall surface of the groove 7, and external threads matching the internal threads are provided on the outer peripheral surface of the fastener, thereby forming a detachable connection. After fastening, the fixation of the end of the telescopic support rod 1 to the suction cup 2 is ensured. After the two fastening rings 8 are sleeved on the telescopic support rod 1 and fastened to the groove 7, since the end surface of the limiting ring 9 abuts against the inner end surface of the fastening ring 8, the end of the telescopic support rod 1 is restricted in the groove 7 and cannot disengage, ensuring the stability of the connection.

[0048] To reduce the friction between both ends of the telescopic support rod 1 and the groove 7 when adjusting the height of the telescopic support rod 1, the limiting ring 9 is in axial clearance fit between the fastening ring 8 and the groove 7. Since the limiting ring 9 has a certain axial clearance, the limiting ring 9 has a certain rotational adjustment space, facilitating height adjustment.

[0049] To reduce the friction between the bottom of the groove 7 and the end of the telescopic support rod 1, and since the limiting ring 9 is provided at the end position of the telescopic support rod 1, a sliding ring 10 that contacts the side of the limiting ring 9 away from the fastening ring 8 is provided at the bottom of the groove 7 to reduce the friction between the telescopic support rod 1 and the groove 7. When the limiting ring 9 contacts the bottom of the groove 7 through the sliding ring 10, it is more smooth and convenient to rotate and adjust the telescopic support rod 1.

[0050] Among them, the sliding ring 10 can be replaced by a bearing part or the like, which can achieve circumferential rotation and axial support.

[0051] In this embodiment, the fastening ring 8 includes: a ring body 801 and a stepped ring 802.

[0052] The outer circumference of the ring body 801 matches the inner circumference of the groove 7, and the ring body 801 is matched and sleeved on the telescopic support rod 1. The outer circumference of the ring body 801 is provided with an external thread, which is connected with the internal thread of the inner wall of the groove 7 through the external thread of the outer circumference of the ring body 801. The step ring 802 is arranged at the end of the ring body 801 away from the limit ring 9. The outer diameter of the outer circumference of the step ring 802 is larger than the inner diameter of the groove 7, so that a step surface 803 is formed on the step ring 802 to abut against the back of the suction cup 2, so as to limit the depth of the fastening ring 8 being screwed inward, and the step ring 802 is convenient to be rotated by tools or handheld;

[0053] Furthermore, a cut surface matching the wrench is provided on the outer circumference of the step ring 802, so that the step ring 802 can be easily clamped and moved by a matching tool to drive the fastening ring 8 to rotate.

[0054] Example 2

[0055] The utility model also discloses a support assembly, which includes: the double-sided vacuum suction cup 2 support structure in Example 1 and a plurality of connecting telescopic rods, the two ends of the connecting telescopic rods are hinged to the double-sided vacuum suction cup 2 support structure. Usually, when using the support assembly, at least four double-sided open suction cup 2 support structures are configured and placed at the four corners of the product to play a supporting role. One can also be placed at the bottom of the center of the product, and they are connected to each other by connecting telescopic rods.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A double-sided vacuum cup support structure, characterized in that: include: Telescopic struts; Two suction cups are arranged opposite to each other, and the backs of the two suction cups are respectively connected to the two ends of the telescopic support rod. The fronts of the suction cups are provided with negative pressure cavities, and the suction cups are provided with air holes connected to the negative pressure cavities.

2. The double-sided vacuum cup support structure according to claim 1, characterized in that: An annular groove is provided on the periphery of the front side of the suction cup, and a sealing ring is arranged in the annular groove.

3. The double-sided vacuum cup support structure according to claim 1, characterized in that: The two ends of the telescopic support rod are detachably connected to the two suction cups.

4. The double-sided vacuum cup support structure according to claim 3, characterized in that: A groove is provided on the back of the suction cup, and two fastening rings threadedly connected to the groove are matched and sleeved on both ends of the telescopic support rod. A limiting ring for abutting against the inner end surface of the fastening ring is provided at the end of the telescopic support rod extending into the groove.

5. The double-sided vacuum cup support structure according to claim 4, characterized in that: The limiting ring is fitted between the fastening ring and the groove along the axial clearance.

6. The double-sided vacuum cup support structure according to claim 4, characterized in that: A sliding ring is arranged at the bottom of the groove and contacts the side of the limiting ring away from the fastening ring, so as to reduce the friction between the telescopic support rod and the groove.

7. The double-sided vacuum cup support structure according to claim 4, characterized in that: The fastening ring comprises: A ring body, which is matched and sleeved on the telescopic support rod, and an outer circumference of the ring body is provided with an external thread; The step ring is arranged at one end of the ring body away from the limiting ring, and a step surface is formed on the step ring to abut against the back side of the suction cup.

8. The double-sided vacuum cup support structure according to claim 1, characterized in that: The telescopic support rod comprises: Two supporting screw rods, one end of each of the two supporting screw rods being connected to the back side of the suction cup respectively; Adjusting nut; both ends of the adjusting nut are respectively threadedly connected to the other ends of the two supporting screws, and rotating the adjusting nut is used to change the distance between the two supporting screws.

9. A support assembly, characterized in that: include: A double-sided vacuum cup support structure as described in any one of claims 1 to 8; A plurality of connecting telescopic rods, both ends of which are hinged to the double-sided vacuum suction cup supporting structure.

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