A quick processing fixture for automobile front steel plate support

Abstract

The utility model provides a kind of fast processing fixture of automobile front steel plate support, including bottom plate, bottom plate is sequentially provided with support column A, support column B, support column C from left to right, drill jig plate is rotatably arranged on support column B, drill jig plate can be contacted after rotating with support column A, support column C top;Wherein, drill jig plate is provided with the pressing plate for fixing part, drill jig plate is fixedly connected with support column A, support column C top after rotating by locking assembly.The utility model can realize 180 ° rotation in practical application, realizes double-sided two processes processing by once clamping, solves repeated positioning error and improves production efficiency problem.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, specifically to a rapid machining fixture for automotive front steel plate supports. Background Technology

[0002] The current method for machining automotive front leaf spring supports requires multiple clamping operations to complete the front and back processes separately, which presents the following problems. When machining the automotive front leaf spring support, drilling and countersinking are required on both sides. The secondary clamping causes the machining reference to shift, affecting the accuracy of the hole positions.

[0003] Meanwhile, loading, unloading, and calibration time account for more than 30% of the processing cycle, leading to reduced processing efficiency; on the other hand, manual flipping of parts is prone to safety hazards and involves high labor intensity. Utility Model Content

[0004] The purpose of this utility model is to provide a quick processing fixture for automotive front steel plate supports, which can achieve 180° rotation in practical applications and realize double-sided two-process processing through one clamping, thus solving the problems of repeated positioning errors and improving production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A quick-processing fixture for automotive front steel plate supports includes a base plate, on which support columns A, B, and C are arranged sequentially from left to right.

[0007] A drilling template is rotatably mounted on support column B, and the drilling template can contact the top of support columns A and C after rotation.

[0008] The drill template is equipped with a pressure plate for fixing the parts. After the drill template rotates, it is fixedly connected to the top of the support column A and support column C through a locking assembly.

[0009] Furthermore, the drilling template is rotatably mounted on the support column B via a rotating shaft.

[0010] Furthermore, the top surfaces of the support column A and the support column C are provided with positioning bosses, and the corresponding positions of the drilling template are provided with matching positioning grooves.

[0011] Furthermore, the pressure plate is adjustablely connected to both sides of the drilling template by bolts, and the pressing surface is provided with a rubber anti-slip layer.

[0012] Furthermore, the base plate is provided with equipment mounting holes for fixing to the worktable of the processing equipment.

[0013] Furthermore, the height tolerance of the support columns A, B, and C is ≤0.02mm, and the material is hardened steel HRC45-50.

[0014] Furthermore, the locking assembly includes a locking bolt and a locking nut. The locking bolt is provided on both support column A and support column C. The drill template is provided with a through hole. The locking bolt passes through the through hole and is connected to the locking nut. The locking nut is used to fix the drill template on support column A or support column C.

[0015] Furthermore, both support column A and support column C are provided with relief grooves, the locking bolts are rotatably disposed in the relief grooves, the locking nuts are wing nuts or connected with handwheels, and the through holes on the drilling template are connected to the side of the drilling template to form a groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention utilizes support columns A, B, and C on a base plate, with a drill template rotatably mounted on support column B. After rotation, the drill template contacts the tops of support columns A and C. Combined with a pressure plate and locking assembly on the drill template, it allows for the machining of both sides of a part in a single clamping operation. This effectively avoids the repetitive positioning errors caused by secondary clamping in existing technologies, improving hole accuracy; reduces loading, unloading, and calibration time, significantly increasing processing efficiency; eliminates the need for manual part flipping, reducing labor intensity and safety hazards; and allows for processing with a single fixture, reducing equipment occupancy and improving fixed asset utilization. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure label:

[0021] 101 Base plate, 102 Support column A, 103 Support column B, 104 Support column C, 105 Drill template, 106 Pressure plate, 107 Parts, 108 Locking assembly, 109 Bolt, 110 Locking bolt, 111 Locking nut, 112 Rotating shaft. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] See Figure 1 This embodiment discloses a quick-processing fixture for automotive front steel plate supports, including a base plate 101, on which support columns A102, B103, and C104 are arranged sequentially from left to right.

[0030] A drilling template 105 is rotatably mounted on the support column B103. After the drilling template 105 rotates, it can contact the top of the support column A102 and the support column C104.

[0031] The drill template 105 is provided with a pressure plate 106 for fixing the part 107. After the drill template 105 is rotated, it is fixedly connected to the top of the support column A102 and the support column C104 through the locking assembly 108.

[0032] This invention features support columns A, B, and C on a base plate 101, with a drill template 105 rotatably mounted on support column B. After rotation, the drill template 105 contacts the tops of support columns A and C. Combined with a pressure plate 106 and locking assembly 108 on the drill template 105, the part 107 can be machined on both sides in a single clamping operation. This effectively avoids the repetitive positioning errors caused by secondary clamping in existing technologies, improving hole accuracy; reduces loading, unloading, and calibration time, significantly increasing processing efficiency; eliminates the need for manual flipping of the part 107, reducing labor intensity and safety hazards; and allows processing to be completed with a single fixture, reducing equipment occupancy and improving fixed asset utilization.

[0033] Furthermore, the drill template 105 is rotatably mounted on the support column B103 via a rotating shaft 112. The rotating shaft 112 has a simple structure and is easy to maintain and replace.

[0034] Furthermore, in some preferred embodiments, the top surfaces of the support columns A102 and C104 are provided with positioning bosses, and the corresponding positions of the drill template 105 are provided with matching positioning grooves. The positioning bosses on the top surfaces of support columns A and C, and the matching positioning grooves on the corresponding positions of the drill template 105, together form a precise positioning structure. When the drill template 105 is rotated and fixed to the support columns A and C, the positional accuracy of the drill template 105 can be further ensured, preventing displacement during processing, thereby guaranteeing the processing accuracy of part 107 and improving product quality.

[0035] Furthermore, in some preferred embodiments, the pressure plate 106 is adjustablely connected to both sides of the drill template 105 via bolts 109, and the pressing surface is provided with a rubber anti-slip layer. The adjustable connection of the pressure plate 106 to both sides of the drill template 105 via bolts 109 allows for flexible adjustment according to parts 107 of different sizes and shapes, enhancing the versatility of the fixture; the rubber anti-slip layer on the pressing surface increases the friction between the pressure plate 106 and the part 107, making the part 107 more firmly fixed during processing, preventing the part 107 from sliding, and ensuring the stability and safety of the processing.

[0036] Furthermore, in some preferred embodiments, the base plate 101 is provided with equipment mounting holes for fixing to the worktable of the processing equipment.

[0037] Furthermore, the height tolerance of the support columns A102, B103, and C104 is ≤0.02mm, and they are made of hardened steel HRC45-50. This ensures the consistency of the height of each support column, providing a foundation for the smooth rotation and precise positioning of the drill template 105 and guaranteeing machining accuracy. The use of hardened steel HRC45-50 gives the support columns high hardness and wear resistance, extending the service life of the fixture, reducing machining errors caused by support column wear and the frequency of fixture replacement, thus lowering production costs.

[0038] Furthermore, in some preferred embodiments, the locking assembly 108 includes a locking bolt 110 and a locking nut 111. The locking bolt 110 is provided on both support column A102 and support column C104. The drill template 105 has a through hole, through which the locking bolt 110 passes and connects to the locking nut 111. The locking nut 111 is used to fix the drill template 105 to support column A102 or support column C104. By connecting the locking bolt 110 through the through hole and the locking nut 111, the drill template 105 can be quickly fixed and disassembled from support columns A and C, simplifying operation and improving processing efficiency. Simultaneously, this locking method provides reliable fixing force, ensuring that the drill template 105 will not loosen during processing and ensuring processing accuracy.

[0039] Alternatively, in some preferred embodiments, both support columns A102 and C104 are provided with clearance grooves. The locking bolt 110 is rotatably disposed within the clearance groove, and the locking nut 111 is a wing nut or connected to a handwheel. The through hole on the drilling template 105 connects with the side of the drilling template 105 to form a groove. This makes the installation and operation of the locking bolt 110 more convenient and does not occupy too much space; the locking nut 111 is a wing nut or connected to a handwheel, which facilitates the operator to manually tighten and loosen the nut quickly, improving work efficiency; the through hole on the drilling template 105 connects with the side of the drilling template 105 to form a groove, into which the locking bolt 110 enters and is fixed by the locking nut 111.

[0040] Furthermore, in actual use, the rotating shaft 112 is connected to a drive unit, which is used to drive the rotating shaft 112 to rotate, thereby realizing the automatic drive of the drilling template 105. The drive unit can be a torque motor. In actual application, touch switches are provided on the support column A102 and support column C104. The touch switches are connected to the torque motor through a controller to achieve the purpose of automatic control of start and stop.

[0041] Furthermore, mounting grooves are provided on support columns A102 and C104, and the touch switch is installed in the mounting groove.

[0042] Furthermore, in actual use, a micro strain gauge is installed at the contact position between the bottom of the locking nut 111 and the drill template 105. The micro strain gauge is used to detect the locking force in real time. Traditionally, if the clamp bolt 109 is loose, the machine needs to be stopped for spot inspection. However, the strain gauge monitors the locking force in real time, which solves hidden faults, such as micron-level preload decay, and prevents the drill template 105 from shifting during processing, which would cause batch scrap.

[0043] Strain gauges are installed on the bottom contact surface of the locking nut 111 to directly sense the normal clamping force, not the torque of the bolt 109. Actual testing shows that the detection accuracy is 5 times higher than that of a torque wrench, with a measured error ≤2%.

[0044] Furthermore, to avoid corrosion from high temperature / coolant, an annular sealing groove is provided at the bottom of the locking nut 111, and a micro strain gauge is embedded in the groove and covered with a thermally conductive silicone layer. The silicone layer has a thickness of ≤0.5mm and a thermal conductivity of ≥5W / m·K.

[0045] Furthermore, the flatness of the contact surface between the bottom of the locking nut 111 and the drill template 105 is ≤0.01mm, and three sets of micro strain gauges are symmetrically arranged to eliminate off-center loading errors.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-processing fixture for automotive front steel plate supports, comprising a base plate, characterized in that: Support columns A, B, and C are installed on the base plate from left to right. A drilling template is rotatably mounted on support column B, and after the drilling template rotates, it can contact the top of support columns A and C. The drill template is equipped with a pressure plate for fixing the parts. After the drill template rotates, it is fixedly connected to the top of the support column A and support column C through a locking assembly.

2. The quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The drilling template is mounted on support column B via a rotating shaft.

3. The quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The top surfaces of support columns A and C are provided with positioning bosses, and the corresponding positions of the drilling template are provided with matching positioning grooves.

4. The quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The pressure plate is adjustablely connected to both sides of the drilling template by bolts, and the pressing surface is provided with a rubber anti-slip layer.

5. A quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The base plate is provided with equipment mounting holes for fixing to the worktable of the processing equipment.

6. The quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The height tolerance of the support columns A, B, and C is ≤0.02mm, and the material is hardened steel HRC45-50.

7. A quick-processing fixture for automotive front steel plate support according to claim 1, characterized in that: The locking assembly includes locking bolts and locking nuts. The locking bolts are provided on both support column A and support column C. The drill template is provided with through holes. The locking bolts pass through the through holes and are connected to the locking nuts. The locking nuts are used to fix the drill template to support column A or support column C.

8. A quick-processing fixture for automotive front steel plate support according to claim 7, characterized in that: Both support column A and support column C are provided with relief grooves. The locking bolt is rotatably set in the relief groove. The locking nut is a wing nut or connected with a handwheel. The through hole on the drilling template connects with the side of the drilling template to form a groove.

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