Limiting block of laser cutting clamp for thermal forming product

By designing a laser cutting fixture limit block for thermoformed parts, using arc-shaped support plates and semispherical positioning support columns, the problem of inaccurate positioning of parts in the prior art is solved, and cutting accuracy and clamping stability are improved.

CN222931994UActive Publication Date: 2025-06-03CHONGQING BOJUN IND TECH CO LTD
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Patent Information

Application Number
CN202421808541.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-06-03
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

During the laser cutting of thermoformed parts, due to the risk of formal fixture manufacturing time and part design changes, existing fixtures are difficult to accurately locate parts, resulting in inaccurate cutting size.

Method used

A laser cutting fixture limit block including a base, a support plate and a positioning support column is designed. The lateral and longitudinal support plates of the support plate are fixed by welding, and the positioning support column contacts the workpiece at a semispherical end to provide point contact support.

Benefits of technology

By reducing the contact area between the workpiece and the support surface of the sheet clamp, the clamping stability of the workpiece is improved, and the problem of inadequate parts installation caused by size differences is overcome.

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Abstract

The utility model belongs to the technical field of automobile part production, and relates to a thermoforming product laser cutting clamp limiting block which comprises a base, a supporting plate and a positioning supporting column. The supporting plates comprise three transverse supporting plates arranged in the transverse direction of the base and two longitudinal supporting plates arranged in the longitudinal direction of the base. The three transverse supporting plates are fixedly connected into a whole through the two longitudinal supporting plates and then fixed to the base. The top of the transverse supporting plate and the top of the longitudinal supporting plate are each in an arc shape, and the arc shape is matched with the shape of a workpiece so that a workpiece containing space can be formed. The positioning supporting column is fixedly arranged at the top of the transverse supporting plate, and one end of the positioning supporting column extends to the position above the arc line of the top of the transverse supporting plate and is used for making contact with a workpiece and limiting and supporting the workpiece. The clamp makes contact with the curved surface of the workpiece in a point mode, the contact area of the workpiece and the supporting molded surface of the plate clamp is reduced, the problem that parts are not installed in place due to size difference in the thermal forming manufacturing process of the workpiece can be greatly solved, and the clamping stability of the workpiece is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile part production, and relates to a laser cutting fixture limit block for a hot forming product. Background Art

[0002] In the process of laser cutting production, different parts need fixture limit blocks to accurately position the parts, determine the stability of the positioning, and ensure the accuracy of the cutting dimensions of the products.

[0003] When a hot forming part is not yet shaped or a product in the trial production state needs laser cutting, it is restricted by the manufacturing time of the formal fixture and the risk of modifying the fixture due to part design changes; in this case, a fixture is made of a plate, and the design of the fixture is to cut the same curve shape as the support surface according to the three-dimensional data curved surface shape of the part with the plate; however, due to a certain error between the physical size of the hot forming part and the design parameters of the part, the produced fixture cannot position the part well. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to solve the above problems and provide a laser cutting fixture limit block for a hot forming product.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A laser cutting fixture limit block for a hot forming product, comprising a base, a support plate, and a positioning support column;

[0007] The support plate includes three transverse support plates arranged horizontally along the base and two longitudinal support plates arranged longitudinally along the base. The three transverse support plates are fixedly connected into one body through the two longitudinal support plates and then fixed on the base;

[0008] The tops of the transverse support plates and the longitudinal support plates are both arc-shaped, and the arc shape matches the shape of the workpiece to form a placement space for the workpiece; the positioning support column is fixedly arranged on the top of the transverse support plate, and one end extends above the arc at the top of the transverse support plate for contacting the workpiece to limit and support the workpiece.

[0009] Further, the end of the positioning support column in contact with the workpiece is hemispherical, and it has a point contact with the workpiece.

[0010] Further, a plurality of the positioning support columns are arranged at intervals on the transverse support plate, and the plurality of positioning support columns respectively support the left and right sides of the workpiece.

[0011] Further, the positioning support column is welded and fixed on the transverse support plate.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the base is used to position and fix the entire fixture to the cutting equipment. The support plate is fixed to the base by welding and is also the base for welding the positioning support columns. The positioning support columns are used for supporting and positioning the workpiece and are fixed to the support plate by welding. The fixture contacts the workpiece surface in a point manner, reducing the contact area between the workpiece and the support surface of the sheet metal fixture, greatly improving the problem that the workpiece cannot be properly installed due to dimensional differences during the thermoforming manufacturing process, and increasing the clamping stability of the workpiece.

[0014] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. Brief Description of the Drawings

[0015] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be described in detail and preferably with reference to the accompanying drawings, where:

[0016] Figure 1 It is a schematic structural diagram of the limit block of the laser cutting fixture for thermoformed products in the present utility model.

[0017] Figure 2 It is a schematic diagram of the use state of the limit block of the laser cutting fixture for thermoformed products in the present utility model.

[0018] Reference numerals: 1 - base; 2 - horizontal support plate; 3 - vertical support plate; 4 - positioning support column; 5 - workpiece. Detailed Embodiments

[0019] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present utility model schematically. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0020] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation on the present utility model; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0021] In the accompanying drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This 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. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation on the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] Please refer to Figures 1-2 , which is a laser cutting fixture limit block for a thermoformed product, including a base 1, a support plate, and a positioning support column 4; the support plate includes three transverse support plates 2 arranged horizontally along the base 1 and two longitudinal support plates 3 arranged longitudinally along the base 1. The three transverse support plates 2 are fixedly connected into one body through the two longitudinal support plates 3 and then fixed on the base 1.

[0023] The tops of the transverse support plate 2 and the longitudinal support plate 3 are both arc-shaped, and the arc shape matches the shape of the workpiece 5 to form a placement space for the workpiece 5; the positioning support column 4 is fixedly installed on the top of the transverse support plate 2, and one end extends above the arc at the top of the transverse support plate 2 for contacting the workpiece 5 to limit and support the workpiece 5.

[0024] A plurality of spaced-apart positioning support columns 4 are provided on the transverse support plate 2, and the plurality of positioning support columns 4 respectively support the left and right sides of the workpiece 5. The positioning support column 4 is fixedly welded to the transverse support plate 2. The end of the positioning support column 4 in contact with the workpiece 5 is hemispherical and has a point contact with the workpiece 5.

[0025] The base 1 in this embodiment is used to position and fix the entire fixture to the cutting equipment. The support plate is fixed to the base 1 by welding and is also the base for welding the positioning support column 4. The positioning support column 4 is used for supporting and positioning the workpiece 5 and is fixed to the support plate by welding. The fixture contacts the curved surface of the workpiece 5 in a point manner, reducing the contact area between the workpiece 5 and the support surface of the sheet metal fixture, greatly improving the problem that the workpiece 5 cannot be properly installed due to dimensional differences during the hot forming manufacturing process, and increasing the clamping stability of the workpiece 5.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A limit block for a laser cutting fixture for thermoforming products, characterized in that: Including a base, a support plate, and a positioning support column; The support plates include three transverse support plates arranged along the transverse direction of the base and two longitudinal support plates arranged along the longitudinal direction of the base, and the three transverse support plates are fixedly connected as one body through the two longitudinal support plates and then fixed to the base; The tops of the transverse support plate and the longitudinal support plate are both arc-shaped, and the shape of the arc matches the shape of the workpiece to form a placement space for the workpiece; the positioning support column is fixedly arranged on the top of the transverse support plate, and one end extends to above the top arc of the transverse support plate, for contacting with the workpiece and providing limited support for the workpiece.

2. The limit block of the laser cutting fixture for thermoforming products according to claim 1 is characterized in that: The end of the positioning support column that contacts the workpiece is hemispherical and is in point contact with the workpiece.

3. The limit block of the laser cutting fixture for thermoforming products according to claim 1, characterized in that: The transverse support plate is provided with a plurality of positioning support columns which are distributed at intervals, and the plurality of positioning support columns are respectively supported on the left and right sides of the workpiece.

4. The limit block of the laser cutting fixture for thermoforming products according to claim 1, characterized in that: The positioning support column is welded and fixed on the transverse support plate.