Machining jig

Abstract

The utility model provides a machining jig which comprises a base provided with at least one machining station, the machining station comprises a machining groove and a machining platform located in the machining groove, a machining gap is formed between the machining platform and the inner wall of the machining groove, and the machining platform is configured to be in profiling with a target workpiece; the mold assembly is configured to be at least partially profiled with the contour of the machining platform in the length direction, the profiled part of the mold assembly covers the machining platform, and the mold assembly is detachably connected with the base; the surface of the machining platform and the surface of the base are located in the same plane, and a clamping space is formed between the machining platform and the mold assembly and used for clamping a plurality of to-be-machined workpieces. According to the machining jig, the multiple to-be-machined workpieces can be machined at the same time, the to-be-machined workpieces cannot be damaged, and the machining efficiency is improved; due to the fact that the machining gap is formed between the machining platform and the inner wall of the machining groove, a moving path for machining is provided, and machining stability can be guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of auxiliary processing devices, and in particular to a processing jig. Background Art

[0002] To accurately determine the mechanical parameters of the materials used in laptop computers, dumbbell-shaped uniaxial tensile specimens must be cut from actual finished products for testing. Plastic laptops (i.e., laptops primarily using plastic as the casing material) have casing thicknesses of approximately 1.8mm, while aluminum alloy laptops have casing thicknesses of approximately 1.0mm. When machining plastic and aluminum alloy sheets using Computer Numerical Control (CNC) machining (CNC), reliable blank fixation is crucial for machining accuracy and quality. Because the finished dumbbell specimen is 165mm long and the narrow test area is only 13mm, it cannot be secured to the CNC machine using pneumatic adsorption. Plastic and aluminum alloys are also not magnetically attractive. Using strong adhesives like 502 glue to bond the sheet to the CNC machining platform is difficult to remove after machining and can easily damage the specimen surface, rendering it unusable. Using end-to-end fixation can cause the sheet to vibrate when the tool reaches the narrow area, resulting in substandard side cuts. Therefore, how to effectively fix the dumbbell-shaped specimen has become an urgent problem to be solved. Utility Model Content

[0003] The present disclosure provides a processing jig to at least solve the above technical problems existing in the prior art.

[0004] According to the processing jig disclosed in the present invention, it includes: a base, which is provided with at least one processing station, the processing station includes a processing groove and a processing platform located in the processing groove, a processing gap is formed between the processing platform and the inner wall of the processing groove, and the processing platform is configured to imitate the target workpiece; and a mold assembly, which is configured to imitate the contour of the target workpiece at least partially in the length direction of the processing platform, the imitation part of the mold assembly is covered on the processing platform, and the mold assembly is detachably connected to the base; wherein the surface of the processing platform and the surface of the base are located in the same plane, and there is a clamping space between the processing platform and the mold assembly for clamping multiple pre-processed workpieces.

[0005] In one embodiment, the mold assembly includes a crossbeam, the length of the crossbeam is greater than the length of the processing groove, and the crossbeam is fastened to the base via a first fastener.

[0006] In one embodiment, the mold assembly further includes a pad having the same shape as the crossbeam, the pad being disposed below the crossbeam, and the pad being fixedly connected to the crossbeam via a second fastener.

[0007] In one embodiment, the contoured portion of the beam is provided with a plurality of expansion screws.

[0008] In one embodiment, the length of the pre-processed workpiece is the same as the length of the processing platform, and the width of the pre-processed workpiece is greater than the maximum width of the processing platform.

[0009] In one embodiment, the height of the clamping space is configured to be adjusted by the amount of screwing of the first fastener relative to the base.

[0010] In one embodiment, the base is further provided with a line drawing assembly, the line drawing assembly includes a line drawing groove, the line drawing groove is configured to follow the shape of the target workpiece, and a first line drawing hole is formed at the bottom of the line drawing groove.

[0011] In one embodiment, a second line drawing hole is provided on the pad.

[0012] In one embodiment, the first line drawing hole is triangular in shape.

[0013] In one embodiment, when the pre-machined workpiece is clamped in the clamping space, the expansion screw abuts against the backing plate to apply a clamping force to the pre-machined workpiece.

[0014] In the present disclosure, since the base of the processing jig and the mold assembly are detachably connected, the contoured part of the mold assembly is covered on the working platform of the processing station, and can clamp multiple pre-processed workpieces in the clamping space, so that multiple pre-processed workpieces can be processed at the same time without causing damage to the pre-processed workpieces, thereby improving the processing efficiency; since a processing gap is formed between the processing platform and the inner wall of the processing groove for the machine tool to perform processing, the processing gap also provides a moving path for processing, which can ensure the smoothness of processing.

[0015] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein:

[0017] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 The figure shows the overall structure of a processing jig according to an exemplary embodiment of the present disclosure;

[0019] Figure 2 The figure shows the overall structure of a machining jig (for clamping a pre-machined workpiece) according to an exemplary embodiment of the present disclosure;

[0020] Figure 3 A schematic structural diagram of a mold assembly of a machining jig according to an exemplary embodiment of the present disclosure is shown;

[0021] Figure 4 A schematic structural diagram of a line drawing assembly of a machining jig according to an exemplary embodiment of the present disclosure is shown;

[0022] Figure 5 A schematic structural diagram of a backing plate of a machining jig according to an exemplary embodiment of the present disclosure is shown.

[0023] Explanation of the numbers in the figure: 1. Base; 2. Mold assembly; 3. Pre-processed workpiece; 4. First fastener; 5. Second fastener; 6. Expansion screw; 11. Processing groove; 12. Processing platform; 13. Marking assembly; 21. Crossbeam; 22. Pad; 131. Marking groove; 132. First marking hole; 211. Screw through hole; 212. Threaded through hole; 221. Screw through hole; 222. Positioning through hole; 223. Second marking hole. DETAILED DESCRIPTION

[0024] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0025] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 and Figure 2As shown, a machining jig according to an exemplary embodiment of the present disclosure includes a base 1 and a mold assembly 2. The base 1 is provided with at least one machining station, which includes a machining groove 11 and a machining platform 12 located within the machining groove 11. A machining gap is formed between the machining platform 12 and the inner wall of the machining groove 11, and the machining platform 12 is configured to conform to the target workpiece. The mold assembly 2 is configured to conform at least partially to the contour of the machining platform 12 in the longitudinal direction. The conforming portion of the mold assembly 2 is overlaid on the machining platform 12, and the mold assembly 2 is detachably connected to the base 1. The surface of the machining platform 12 and the surface of the base 1 are located in the same plane, and a clamping space is provided between the machining platform 12 and the mold assembly 2 for clamping a plurality of pre-machined workpieces 3.

[0027] In this embodiment, the shape of the target workpiece can vary, depending on its application, design requirements, and manufacturing process. The embodiments described herein all take the target workpiece as a dumbbell-shaped thin plate as an example, and the dimensions of the pre-processed workpiece 3 can be larger than the dumbbell-shaped thin plate. For example, assuming the dumbbell-shaped target workpiece is 165 mm long and 13 mm wide at its narrow end, the pre-processed workpiece 3 should be a rectangular blank with a length of 165 mm and a width of approximately 30 mm. When preparing the pre-processed workpiece 3, rough machining can be performed using a table saw or the like. It should be noted that while the machining platform 12 conforms to the target workpiece, the mold assembly 2 at least partially conforms to the longitudinal contour of the machining platform 12. Specifically, only the middle portion of the mold assembly 2 conforms to the longitudinal contour of the machining platform 12. The mold assembly 2 extends longitudinally from the machining platform 12 to both ends to connect with the base 1. Therefore, during machining, the CNC machine can only mill along the sides of the mold assembly 2, processing the width of the pre-processed workpiece 3 without changing its length. Therefore, when rough machining the pre-processed workpiece 3, it is necessary to ensure that the length of the pre-processed workpiece 3 meets the requirements of the target workpiece. The surface of the processing platform 12 and the surface of the base 1 are located in the same plane, thereby preventing the pre-processed workpiece 3 from undergoing plastic deformation after clamping due to the height difference between the processing platform 12 and the base 1, thereby affecting the quality of the target workpiece. The clamping space formed between the processing platform 12 and the mold assembly 2 can clamp multiple pre-processed workpieces 3, and the specific number of pre-processed workpieces 3 that can be clamped is adaptively changed according to the thickness of the clamping space. Usually, 4 to 5 pre-processed workpieces 3 can be clamped in the clamping space. When the number of processing stations on the local base 1 is three groups, the processing fixture can clamp 12 to 15 pre-processed workpieces 3 at the same time. It is understandable that a larger number of pre-processed workpieces 3 can be clamped in the clamping space, but it is necessary to take into account the effective vertical upward processing distance of the CNC machine milling cutter. As long as the processing distance is sufficient and the CNC tool holder does not interfere with the processing fixture, it will be fine.

[0028] Reference Figure 3As shown, in one embodiment, the mold assembly 2 includes a crossbeam 21 , the length of the crossbeam 21 is greater than the length of the processing groove 11 , and the crossbeam 21 is fastened to the base 1 via a first fastener 4 .

[0029] In this embodiment, the length of the crossbeam 21 is greater than that of the machining groove 11, thereby ensuring the connection between the crossbeam 21 and the base 1. Specifically, the crossbeam 21 extends from the portion that aligns with the machining platform 12 toward both ends until it is connected to the base 1. The crossbeam 21 is made of steel to provide sufficient rigidity. The first fastener 4 can be a screw. A screw hole 211 is defined in the crossbeam 21 for the first fastener 4 to pass through. The first fastener 4 is inserted into the screw hole 211 and is securely connected to the base 1.

[0030] In one embodiment, the mold assembly 2 further includes a pad 22 . The pad 22 has the same shape as the crossbeam 21 . The pad 22 is disposed below the crossbeam 21 . The pad 22 and the crossbeam 21 are fixedly connected via a second fastener 5 .

[0031] In this embodiment, the pad 22 is made of a softer aluminum alloy material to prevent the pad 22 from crushing the blank when pressing the pre-processed workpiece 3. The second fastener 5 can be a screw. The pad 22 is provided with a screw hole 221 for the second fastener 5 to pass through. Correspondingly, a threaded hole is provided at the bottom of the beam 21. The second fastener 5 passes through the screw hole 221 and is screwed into the threaded hole to fix the pad 22 to the beam 21 to form a mold assembly 2. The pad 22 is also provided with a positioning hole 222. The first fastener 4 passes through the screw hole 211. The positioning hole 222 of the pad 22 is inserted into the first fastener 4 and fits the beam 21. Then, the first fastener 4 is fastened to the base 1 to fix the mold assembly 2 to the base 1. Among them, the first fastener 4 is designed with a light rod portion, which can be used to position the pad 22 to prevent it from being displaced.

[0032] In one embodiment, a plurality of expansion screws 6 are provided on the contoured portion of the crossbeam 21 .

[0033] In one embodiment, when the pre-machined workpiece 3 is clamped in the clamping space, the expansion screw 6 abuts against the backing plate 22 to apply a clamping force to the pre-machined workpiece 3 .

[0034] In this embodiment, the present disclosure uses three expansion screws 6 as an example. Accordingly, three threaded through holes 212 are provided on the crossbeam 21. The expansion screws 6 are pre-threaded halfway into the threaded through holes 212. When the pre-machined workpiece 3 needs to be clamped, the expansion screws 6 are fully threaded into the threaded through holes 212 to apply a clamping force to the middle area of ​​the pre-machined workpiece 3 to prevent the pre-machined workpiece 3 from loosening.

[0035] In one embodiment, the length of the pre-machined workpiece 3 is the same as the length of the machining platform 12 , and the width of the pre-machined workpiece 3 is greater than the maximum width of the machining platform 12 .

[0036] In this embodiment, while the machining platform 12 conforms to the target workpiece, the mold assembly 2 at least partially conforms to the longitudinal contour of the machining platform 12. Specifically, only the middle portion of the mold assembly 2 conforms to the machining platform 12. The mold assembly 2 extends longitudinally from the machining platform 12 to its ends, where it can connect to the base 1. Therefore, during machining, the CNC machine can only mill along the sides of the mold assembly 2, processing the width of the pre-machined workpiece 3 without changing its length. Consequently, during rough machining to form the pre-machined workpiece 3, it is necessary to ensure that the length of the pre-machined workpiece 3 meets the requirements of the target workpiece. The width of the pre-machined workpiece 3 is greater than the maximum width of the machining platform 12, thereby ensuring that the overall size of the pre-machined workpiece 3 is larger than the dumbbell-shaped sheet.

[0037] In one embodiment, the height of the clamping space is configured to be adjusted by the amount of screwing of the first fastener 4 relative to the base 1 .

[0038] In this embodiment, the threaded portion of the first fastener 4 is lengthened to ensure effective locking when clamping one to five pre-machined workpieces 3. For example, when clamping only one pre-machined workpiece 3, the first fastener 4 is screwed in a few more turns to tighten the pre-machined workpiece 3. If clamping five pre-machined workpieces 3, the first fastener 4 is screwed in a smaller number of times to tighten the pre-machined workpiece 3. It is understood that by designing first fasteners 4 of different lengths, different numbers of pre-machined workpieces 3 can be clamped.

[0039] Reference Figure 4 As shown, in one embodiment, the base 1 is further provided with a line drawing assembly 13 , which includes a line drawing groove 131 configured to conform to the target workpiece, and a first line drawing hole 132 is defined at the bottom of the line drawing groove 131 .

[0040] In this embodiment, the dumbbell-shaped target workpiece after processing needs to be marked with the testing machine clamping line and the extensometer clamping line to facilitate clamping. By providing a line drawing groove 131 that is shaped like the target workpiece on the base 1, the target workpiece formed after processing can be fitted into the line drawing groove 131. The first line drawing hole 132 passes through the bottom surface of the base 1. When the target workpiece is fitted into the line drawing groove 131, the target workpiece can be marked from the back of the line drawing groove 131 through the first line drawing hole 132. It is understandable that the line drawing component 13 can also be a workpiece that can be used alone, and it does not need to be set on the base 1, which makes it more flexible to use.

[0041] Reference Figure 5As shown, in one embodiment, a second line drawing hole 223 is opened on the pad 22 .

[0042] In this embodiment, when the backing plate 22 is provided with a second marking hole 223, the expansion screw 6 needs to be designed to avoid the second marking hole 223. After removing the first and second fasteners 4 and 5, the crossbeam 21 and backing plate 22 can be used solely for marking. To mark the workpiece, align the target workpiece with the contoured portion of the backing plate 22, and then mark the target workpiece from the other side of the backing plate 22 through the second marking hole 223.

[0043] In one embodiment, the first line drawing hole 132 is triangular in shape.

[0044] In this embodiment, the first marking hole 132 is triangular in shape and has a foolproof function. In this case, only the base of the triangle is perpendicular to the length of the target workpiece, so only the base of the triangle needs to be drawn along the base, ensuring accurate drawing. If the backing plate 22 is provided with a second marking hole 223, the second marking hole 223 is also triangular in shape and serves the same purpose as the first marking hole 132, so it will not be further described here.

[0045] When using the processing jig disclosed in the present invention for processing, the following steps are involved:

[0046] Step 1: Forming a pre-processed workpiece 3: Cut a rectangular pre-processed workpiece 3 with a length of 165 mm and a width of approximately 30 mm from the laptop product, while ensuring that the size of the pre-processed workpiece 3 is larger than the size of the target workpiece. During the process of forming the pre-processed workpiece 3, a table saw or the like may be used for rough processing;

[0047] Step 2: Assemble the mold assembly 2: Screw the three expansion screws 6 halfway into the threaded through-holes 212, insert the two first fasteners 4 through the screw through-holes 211, insert the positioning through-holes 222 of the backing plate 22 into the first fasteners 4 and fit it against the crossbeam 21, then insert the second fastener 5 through the screw through-holes 221 and screw it into the threaded hole, and fix the backing plate 22 to the crossbeam 21 to assemble the mold assembly 2;

[0048] Step 3: Clamp the pre-processed workpiece 3 and process it: Place the pre-processed workpiece 3 on the processing platform 12, lock the two first fasteners 4 with the base 1, and finally tighten the three expansion screws 6 to apply a clamping force to the middle area of ​​the pre-processed workpiece 3 to prevent it from loosening; if there are many pre-processed workpieces 3, 4 to 5 pre-processed workpieces 3 can be clamped under the mold assembly 2, and all three processing stations can be clamped. The clamped processing fixture can be placed on the CNC machine for processing. The CNC machine is programmed to mill the areas on both sides of the mold assembly 2 in sequence to complete the production of the target workpiece;

[0049] Step 4: Marking the target workpiece: Fit the target workpiece to the marking groove 131 or the pad 22 , and mark the target workpiece through the corresponding first marking hole 132 or the second marking hole 223 , thus completing the manufacturing process of the dumbbell-shaped target workpiece.

[0050] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the directional words is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words 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, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatially relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0053] It should be noted that the terms "first," "second," and the like in the specification and claims of the present disclosure and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0054] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. In addition, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present disclosure, all of which fall within the scope of protection claimed by the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A processing jig, characterized in that: include: A base (1) is provided with at least one processing station, the processing station comprising a processing groove (11) and a processing platform (12) located in the processing groove (11), a processing gap is formed between the processing platform (12) and the inner wall of the processing groove (11), and the processing platform (12) is configured to follow the shape of a target workpiece; and A mold assembly (2) is configured to at least partially conform to the contour of the processing platform (12) in the longitudinal direction, the conforming portion of the mold assembly (2) being overlaid on the processing platform (12), and the mold assembly (2) being detachably connected to the base (1); The surface of the processing platform (12) and the surface of the base (1) are located in the same plane, and a clamping space is provided between the processing platform (12) and the mold assembly (2) for clamping a plurality of pre-processed workpieces (3).

2. The processing jig according to claim 1, characterized in that: The mold assembly (2) comprises a crossbeam (21), the length of the crossbeam (21) is greater than the length of the processing groove (11), and the crossbeam (21) is fastened to the base (1) via a first fastener (4).

3. The processing jig according to claim 2, characterized in that: The mold assembly (2) further includes a pad (22), the pad (22) having the same shape as the crossbeam (21), the pad (22) being arranged below the crossbeam (21), and the pad (22) being fixedly connected to the crossbeam (21) via a second fastener (5).

4. The processing jig according to claim 3, characterized in that: The contoured portion of the crossbeam (21) is provided with a plurality of expansion screws (6).

5. The processing jig according to claim 1, characterized in that: The length of the pre-processed workpiece (3) is the same as the length of the processing platform (12), and the width of the pre-processed workpiece (3) is greater than the maximum width of the processing platform (12).

6. The processing jig according to claim 2, characterized in that: The height of the clamping space is configured to be adjusted by the amount of screwing of the first fastener (4) relative to the base (1).

7. The processing jig according to claim 1, characterized in that: The base (1) is further provided with a line drawing assembly (13), the line drawing assembly (13) comprising a line drawing groove (131), the line drawing groove (131) being configured to imitate the target workpiece, and a first line drawing hole (132) being provided at the bottom of the line drawing groove (131).

8. The processing jig according to claim 3, characterized in that: The backing plate (22) is provided with a second line drawing hole (223).

9. The processing jig according to claim 7, characterized in that: The first line drawing hole (132) is triangular in shape.

10. The processing jig according to claim 4, characterized in that: When the pre-machined workpiece (3) is clamped in the clamping space, the expansion screw (6) abuts against the backing plate (22) to apply a clamping force to the pre-machined workpiece (3).

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