Tensioning supporting table capable of guaranteeing roundness of product

Abstract

The utility model relates to a tensioning support table for ensuring the roundness of a product, which comprises a rotary table which is driven by a rotating mechanism to rotate horizontally, the rotary table is provided with at least three support petals which rotate and are symmetrical around a rotary shaft of the rotary table, gaps are arranged among the support petals, and the support petals can move along the radial direction of the rotary table; the peripheral surfaces of the supporting petals are matched with the inner wall of the product in shape; the supporting petals are connected with elastic pieces enabling the supporting petals to tend to contract inwards. And an expansion core which is selectively pressed downwards so as to be inserted into the supporting petals to enable the supporting petals to expand outwards is also arranged above the rotary table. The centering device has the advantages that the multiple supporting petals are designed to conduct internal tensioning and fixing on the round pipe, deformation of the round pipe cannot be caused in the centering process, rounding treatment is conducted on deformation generated before centering and fixing, and the roundness and centering precision of a product are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a tensioning support table for ensuring the roundness of a product. Background Art

[0002] The metal cylinder is a common workpiece. During processes such as flanging and connecting, it often needs to be centered and fixed with high precision to ensure the accuracy of the position.

[0003] Currently, metal cylinders are typically clamped using a clamping mechanism, typically consisting of a two-claw or multi-claw clamp with a suitable shape, which can clamp and restrain the metal cylinder. However, given the thin wall thickness of many metal cylinders, clamping with clamping jaws carries the risk of deformation.

[0004] Moreover, some metal cylinders with thinner walls often become deformed before the centering and fixing process, and their roundness is not enough, so they need to be rounded before they can be centered and fixed.

[0005] Therefore, it is necessary to improve and optimize the existing metal round tube centering and fixing device so that it can better meet user needs. Utility Model Content

[0006] The purpose of the embodiment of the utility model is to address the shortcomings of the existing technical structure and propose a tensioning support platform that ensures the roundness of the product. By designing multiple support petals to perform internal tensioning and fixing of the circular tube, not only will it not cause its deformation during the centering process, but the deformation that has already occurred before centering and fixing can be rounded off, thereby greatly improving the roundness and centering accuracy of the product.

[0007] In order to achieve the above-mentioned purpose of the utility model, the embodiment of the utility model proposes a tensioning support table for ensuring the roundness of the product, which is realized by the following technical solutions:

[0008] A tensioning support table for ensuring the roundness of a product, characterized in that: the tensioning support table includes a turntable driven by a rotating mechanism to rotate horizontally, the turntable is provided with at least three support petals rotationally symmetrical around the turntable axis, gaps are provided between the support petals, and the support petals can move radially along the turntable; the outer peripheral surface of the support petal is adapted to the shape of the inner wall of the product; the support petal is connected to an elastic part that tends to shrink inward; an expansion core is also provided above the turntable, which can be rotatable and can be selectively pressed down to be inserted into the support petal to cause the support petal to open outward.

[0009] The expansion core is rotatably arranged on the Y-axis linear module and is driven thereby to move up and down along the rotation axis of the turntable.

[0010] The expanding core is roughly in the shape of an inverted cone or a truncated cone.

[0011] The Y-axis linear module includes an electric push rod.

[0012] A groove is transversely provided on the circumferential surface of the support petal, and the elastic member is an elastic ring. The elastic ring is sleeved on the circumferential surfaces of the three support petals and embedded in the groove.

[0013] The support petals are roughly fan-shaped, with a long waist hole vertically opened on them; three guide columns are vertically set up on the turntable, and the support petals are correspondingly mounted on the guide columns one by one so as to be able to move along the radial direction of the turntable.

[0014] The guide column is provided with a through hole and is connected to the turntable by bolts; the guide column has two relatively parallel side walls, and the distance between the two side walls matches the width of the long waist hole.

[0015] The head of the guide column is provided with a flange for preventing the supporting petal from falling off the guide column.

[0016] Compared with the existing technology, the beneficial effect of the utility model is that by designing multiple support petals to tighten and fix the circular tube internally, not only will it not cause its deformation during the centering process, but the deformation that has already occurred before centering and fixing can be rounded, thereby greatly improving the roundness and centering accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above features and advantages of the present invention will become clearer and easier to understand through the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0018] Figure 1 A three-dimensional schematic diagram of a tensioning support platform for ensuring product roundness according to an embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of a turntable according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the turntable portion of an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0022] The terms "front", "back", "left", "right", "inside", and "outside" used in this specification are for the purpose of clarification only and are not intended to limit the applicable scope of the present invention. Any changes or adjustments to the relative relationships thereof without substantially changing the technical content shall be deemed to be within the applicable scope of the present invention.

[0023] In the following descriptions of the embodiments, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, "connection" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an indirect connection through an intermediate medium; it can refer to internal communication between two components or an interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] See also Figure 1-3 As shown, the embodiment of the present invention proposes a tightening support table for ensuring the roundness of the product, including a turntable assembly and a core expansion assembly 2, wherein:

[0025] Turntable assembly

[0026] join Figure 2-3 As shown, the turntable assembly includes a turntable 1, the rotating shaft of the turntable 1 is fixed to the output end of a rotating mechanism, and is driven by the rotating mechanism to rotate horizontally at a uniform speed. In this embodiment, the rotating mechanism is a servo motor 12, of course, other devices that can achieve uniform rotation can also be used.

[0027] The turntable 1 is equipped with three support petals 11, which are roughly fan-shaped, with an outer surface that matches the inner wall of the cylinder 3. The three support petals 11 are rotationally symmetrical about the rotation axis of the turntable 1. The support petals 11 can move radially along the turntable, and gaps are provided between the support petals 11 to enable them to retract inward.

[0028] Specifically, the support petals 11 are vertically defined with elongated waist holes 111, while the turntable 1 is vertically defined with three guide posts 13. These guide posts 13 have through-holes and are connected to the turntable 1 via bolts 14. The guide posts 13 have two relatively parallel sidewalls, the spacing between which matches the width of the elongated waist holes 111. The support petals 11 are sleeved onto the guide posts 13 in a one-to-one correspondence, allowing them to move radially along the turntable 1 without rotating. Furthermore, the heads of the guide posts 13 are provided with flanges 131 to prevent the support petals 11 from dislodging from the guide posts 13.

[0029] The support petals 11 are connected with elastic members that make them tend to contract inwards. Specifically, the support petals 11 are transversely provided with grooves 112 on their circumferences, and the elastic members are elastic rings that are sleeved on the circumferences of the three support petals 11 and embedded in the grooves 112.

[0030] Core expansion component 2

[0031] See also Figure 1 As shown, the core expansion assembly 2 mainly includes a core expansion 21 and a Y-axis linear module 22 that drives the core expansion 21 to move up and down. Among them, the core expansion 21 is arranged above the turntable 1, and can be intermittently pressed down to insert into the support petal 11, so that the three-petal support petal 11 opens outward, and then the tension cylinder plays a fixing role. The core expansion 21 is roughly inverted cone or truncated cone shape, which is driven by the Y-axis linear module 22 to move up and down along the rotation axis of the turntable 1. In this embodiment, the Y-axis linear module 22 is composed of a vertically arranged guide column 221, a lifting platform 222 that moves up and down along the guide column 221, a lifting mechanism 223 that drives the lifting platform 222 to move up and down, and a column 224 fixed on the lifting platform 222. Obviously, other devices that can achieve lifting, such as electric push rods, cylinders, etc., can also be used here, and also fall within the scope of protection of this patent.

[0032] In order to cooperate with the rotation of the turntable 1 , the expansion core 21 is installed at the end of the column 224 through a bearing. After being inserted into the support petal 11 , it can rotate with the rotation of the turntable 1 .

[0033] During operation, the cylinder 3 is first placed on the support flap 11. Then, the Y-axis linear module controls the expansion core 2 to insert into the support flap 11, causing the support flap 11 to open outward, and the cylinder is supported and fixed. The servo motor 12 then drives the turntable 1 to rotate, thereby driving the cylinder to rotate.

[0034] Compared with the existing technology, the beneficial effect of the utility model is that by designing multiple support petals to tighten and fix the circular tube internally, not only will it not cause its deformation during the centering process, but the deformation that has already occurred before centering and fixing can be rounded, thereby greatly improving the roundness and centering accuracy of the product.

[0035] The above embodiments describe the utility model intention and implementation methods of the utility model in detail, but a person skilled in the art in the art will understand that the above embodiment of the utility model is only one of the preferred embodiments of the utility model. Due to space limitations, not all implementation methods can be listed here one by one. Any implementation that can embody the technical solution of the claims of the utility model is within the scope of protection of the utility model.

[0036] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation methods of the present invention are limited to these. Under the guidance of the above embodiments, those skilled in the art can make various improvements and modifications on the basis of the above embodiments, and these improvements or modifications fall within the scope of protection of the present invention.

Claims

1. A tensioning support platform for ensuring product roundness, characterized by: The tensioning support platform includes a turntable driven by a rotating mechanism to rotate horizontally, and the turntable is provided with at least three support petals that are rotationally symmetrical around the turntable's rotation axis. There are gaps between the support petals, and the support petals can move radially along the turntable; the outer peripheral surface of the support petal is adapted to the shape of the inner wall of the product; the support petal is connected to an elastic part that tends to shrink inward; and an expansion core is also provided above the turntable, which can be rotatable and can be selectively pressed down to be inserted into the support petal to make the support petal open outward.

2. A tensioning support platform for ensuring product roundness according to claim 1, characterized in that: The expansion core is rotatably arranged on the Y-axis linear module and is driven thereby to move up and down along the rotation axis of the turntable.

3. A tensioning support platform for ensuring product roundness according to claim 2, characterized in that: The expanding core is roughly in the shape of an inverted cone or a truncated cone.

4. A tensioning support platform for ensuring product roundness according to claim 3, characterized in that: The Y-axis linear module includes an electric push rod.

5. The tensioning support platform for ensuring product roundness according to claim 1, characterized in that: A groove is transversely provided on the circumferential surface of the support petal, and the elastic member is an elastic ring. The elastic ring is sleeved on the circumferential surfaces of the three support petals and embedded in the groove.

6. The tensioning support platform for ensuring product roundness according to claim 1, characterized in that: The support petals are roughly fan-shaped, with a long waist hole vertically opened on them; three guide columns are vertically set up on the turntable, and the support petals are correspondingly mounted on the guide columns one by one so as to be able to move along the radial direction of the turntable.

7. A tensioning support platform for ensuring product roundness according to claim 6, characterized in that: The guide column is provided with a through hole and is connected to the turntable by bolts; the guide column has two relatively parallel side walls, and the distance between the two side walls matches the width of the long waist hole.

8. The tensioning support platform for ensuring product roundness according to claim 7, characterized in that: The head of the guide column is provided with a flange for preventing the supporting petal from falling off the guide column.

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