A processing master for a barrel cover arc surface

Abstract

The utility model relates to the field of injection molding machine accessory production discloses a material cylinder gland arc surface machining template, including the horizontally arranged template base plate and the several groups of datum assembly of can dismantle and change fixed on the template base plate, and the datum assembly includes two parallelly arranged datum plate and the interval of two datum plates is greater than the width of the corresponding material cylinder gland insertion portion, and the positioning mechanism that prevents the datum plate from toppling or translating is arranged between the template base plate and the datum plate of different datum assembly, the end face of two ends of two datum plates of each datum assembly is vertical plane and is provided with the positioning locking mechanism that is adapted with the end cover mounting hole of the corresponding material cylinder gland on the vertical plane, the template can not only improve the efficiency of production, but also can significantly increase the machining accuracy, in addition, the operator is convenient for processing error test.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine parts manufacturing, and in particular to a mold for machining the arc surface of a barrel cap. Background Technology

[0002] The barrel cap is an important component of the injection molding machine barrel. Its main function is to seal the end of the barrel, preventing plastic material leakage, isolating air from contacting the material, and preventing foreign matter from entering the barrel, thus ensuring production safety. The barrel cap includes an end cap and an insertion part. The insertion part has a curved surface, which helps ensure correct installation orientation and provides precise alignment during assembly, ensuring accurate connection between various components. Therefore, the curved surface not only improves assembly accuracy but also contributes to enhancing the overall safety and reliability of the equipment.

[0003] After machining the four sides, end faces, and various holes of the barrel cap, the arc surface needs to be bored at the insertion end. There are two existing machining methods: one requires assembling the barrel cap in a simulated assembly manner, fixing it with screws, and then performing rough and fine boring of the arc surface in sequence. This method requires coordinating the production schedule of related parts, the processing quantity, and the requisition of materials, which brings great inconvenience to production management and has the disadvantages of wasting manpower and resources and reducing processing efficiency. The other method is to machine the arc surface of the barrel cap separately in a vertical or horizontal machining center to meet the requirements of the drawing. Since this method cannot accurately measure the curvature of the arc surface during the machining process, the workpiece must be removed and measured by a coordinate measuring machine. This method brings great inconvenience to machining and dimensional adjustment, easily causes workpiece scrap, and is inefficient. Utility Model Content

[0004] This invention addresses the shortcomings of existing methods for machining the arc surface of a cylinder cap, which are inconvenient and inefficient. It provides a machining template for the arc surface of a cylinder cap, which can improve the machining accuracy and efficiency of the arc surface of the cylinder cap.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A template for machining the arc surface of a barrel cap includes a horizontally arranged template base plate and several sets of reference components that can be detachably fixed to the template base plate. Each reference component includes two parallel reference plates with a distance between them greater than the width of the corresponding barrel cap insertion part. A positioning mechanism is provided between the template base plate and the reference plates of different reference components to prevent the reference plates from tilting or shifting. The end faces of the two reference plates of each set of reference components are vertical, and a positioning locking mechanism adapted to the end cap mounting hole of the corresponding barrel cap is provided on the vertical surface.

[0007] Using the above scheme, the template is used in vertical machining center equipment. It can replace the appropriate reference components according to different models of barrel end caps. Each set of reference components can process two barrel caps at the same time. The center of the area enclosed by the two reference plates is used as the center of the processed arc surface. During processing, the insertion ends of the two barrel caps are inserted into the two ends of the reference plates respectively, and the positioning and locking mechanism is used for limiting. The vertical machining center equipment can process two concentric arc surfaces, which can not only improve production efficiency, but also significantly increase the processing accuracy. In addition, it is convenient for operators to use an internal diameter dial indicator to measure the processing accuracy of the arc surface without disassembling the parts on the machine tool.

[0008] Preferably, the positioning mechanism includes a first positioning pin that is vertically protruding on the base plate of the template and a first threaded groove that is recessed and parallel to the first positioning pin. The reference plate is provided with a first positioning groove into which the first positioning pin can be inserted, a through hole that is directly opposite to the first threaded groove, and a first fastening bolt that passes through the through hole and is screwed to the first threaded groove.

[0009] Using the above scheme, the first positioning pin is used to pre-position the reference plate on the template base plate, and then the first fastening bolt is used to fix the reference plate to the template base plate. Each surface of the reference plate is a horizontal plane and a vertical plane, which can serve as a good reference plane.

[0010] Preferably, the positioning and locking mechanism includes a second fastening bolt, a second positioning pin, and a second threaded groove. The second positioning pin and the second threaded groove are distributed at both ends of each reference plate facing the insertion direction of the insertion part and correspond to an end cover mounting hole respectively. The second fastening bolt passes through the end cover mounting hole and is screwed into the second threaded groove.

[0011] Using the above scheme, after the insertion part of the barrel cap is inserted between the two reference plates, it is first pre-positioned using the second positioning pin, and then limited using the second fastening bolt, to ensure that the two barrel end caps are aligned after assembly, so as to process two products at the same time and perform manual inspection at the same time after processing.

[0012] Preferably, each set of reference plates has a second positioning pin and a second threaded groove vertically spaced at both ends facing the insertion direction of the insertion part, and the second positioning pin and the second threaded groove of the two reference plates are diagonally distributed.

[0013] Using the above scheme, the second positioning pins are distributed diagonally, which can stably and quickly position the barrel cap so as to limit the subsequent positioning of the barrel cap.

[0014] This utility model, by adopting the above technical solution, has significant technical effects: The processing template is used in vertical machining centers. It allows for the replacement of suitable reference components with different models of barrel end caps. Each set of reference components can simultaneously process two barrel caps of corresponding sizes. Using the center of the area enclosed by the two reference plates as the center of the processed arc surface, during processing, the insertion ends of the two barrel caps are inserted into the two ends of the reference plates respectively, and are limited by a positioning and locking mechanism. The vertical machining center can then process two concentric arc surfaces, which not only improves production efficiency but also significantly increases processing accuracy. Furthermore…

[0015] It also makes it easy for operators to use an inside dial indicator to measure the machining accuracy of arc surfaces without disassembling parts on the machine tool. Attached Figure Description

[0016] Figure 1 This is an isometric view of a template for machining the arc surface of a barrel cap according to this embodiment;

[0017] Figure 2 This is a top view of a machining template for the arc surface of a barrel cap according to this embodiment;

[0018] Figure 3 yes Figure 2 A sectional view of AA.

[0019] The parts referred to by the numbers in the above attached figures are as follows: 1. Cylinder cap; 101. End cap; 102. Insertion part; 103. Arc surface; 104. End cap mounting hole; 2. Mold base plate; 201. First threaded groove; 3. Reference plate; 301. First positioning groove; 302. Through hole; 303. Second threaded groove; 4. First positioning pin; 5. First fastening bolt; 6. Second positioning pin; 7. Second fastening bolt. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] A template for machining the arc surface of a barrel cap, as shown in the reference. Figures 1-3 As shown, a vertical machining center includes a horizontally arranged template base plate 2 and several sets of reference components that can be detachably fixed on the template base plate 2. Each set of reference components includes two parallel reference plates 3 with a distance between the two reference plates 3 greater than the width of the corresponding insert part 102 of the barrel cap 1. A positioning mechanism is provided between the template base plate 2 and the reference plates 3 of different reference components to prevent the reference plates 3 from tilting or shifting. The end faces of the two reference plates 3 of each set of reference components are vertical, and a positioning locking mechanism adapted to the end cap mounting hole 104 of the corresponding barrel cap 1 is provided on the vertical surface.

[0022] The positioning mechanism includes a first positioning pin 4 vertically fixed on the base plate 2 and a first threaded groove 201 recessed and parallel to the first positioning pin 4. The reference plate 3 is provided with a first positioning groove 301 into which the first positioning pin 4 can be inserted, a through hole 302 opposite to the first threaded groove 201, and a first fastening bolt 5 that passes through the through hole 302 and is screwed to the first threaded groove 201. Each reference plate 3 is provided with two through holes 302 and two first positioning grooves 301. The through holes 302 and the first positioning grooves 301 are distributed in a straight line.

[0023] The positioning and locking mechanism includes a second fastening bolt 7, a second positioning pin 6, and a second threaded groove 303. The second positioning pin 6 and the second threaded groove 303 are distributed at both ends of each reference plate 3 facing the insertion direction of the insertion part 102 and correspond to an end cover mounting hole 104 respectively. The second fastening bolt 7 passes through the end cover mounting hole 104 and is screwed into the second threaded groove 303.

[0024] Each reference plate 3 has a second positioning pin 6 and a second threaded groove 303 vertically spaced at both ends, and the second positioning pin 6 and the second threaded groove 303 on the same end face of the two reference plates 3 are diagonally distributed.

[0025] The steps for applying this template are as follows:

[0026] 1. Install the template base plate 2 on the machine tool worktable, use a dial indicator to level the reference surface of the template base plate 2, and tighten it with bolts or clamps;

[0027] 2. The first positioning pin 4 is fixedly installed on the template base plate 2, generally by interference fit or threaded connection.

[0028] 3. Install the two reference plates 3 corresponding to the current product in pairs on the template base plate 2 through the first positioning pin 4, and rotate the first fastening bolt 5 to achieve the limit position;

[0029] 4. The second positioning pin 6 of the positioning cylinder cover 1 is installed at the end of the reference plate 3 by means of screwing or interference fitting, and the second positioning pin 6 is installed diagonally;

[0030] 5. Install the cylinder cover 1 in pairs on the reference plate 3 using the second positioning pin 6, and tighten it diagonally using the second fastening bolt 7.

[0031] 6. Set the machine tool to the correct zero point, then start the machine for machining.

[0032] 7. Once the workpiece is finished, remove it and repeat steps 5 and 6. If the workpiece dimensions change, repeat steps 3, 4, 5, and 6, and continue the process indefinitely.

[0033] This template has at least the following advantages:

[0034] 1. It does not rely on separate processing of assemblies, which greatly facilitates production management;

[0035] 2. It facilitates the arrangement of processing machine tools, allows for flexible use of existing machine tools, and enables the customization of process procedures at the lowest processing cost;

[0036] 3. Paired combination processing allows for direct measurement of the arc using an inner diameter dial indicator during the processing, which is both convenient and accurate, improving the processing accuracy and efficiency of the arc surface 103.

[0037] 4. Compared with the independent processing of individual parts, it significantly improves the part qualification rate.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A die for machining the arc surface of a barrel cap, characterized in that: It includes a horizontally arranged template base plate (2) and several sets of reference components that can be detachably fixed on the template base plate (2). The reference components include two parallel reference plates (3) with the distance between the two reference plates (3) being greater than the width of the corresponding material cylinder cap (1) insertion part (102). A positioning mechanism is provided between the template base plate (2) and the reference plates (3) of different reference components to prevent the reference plates (3) from tilting or shifting. The end faces of the two reference plates (3) of each set of reference components are vertical, and a positioning locking mechanism adapted to the end cap mounting hole (104) of the corresponding material cylinder cap (1) is provided on the vertical surface.

2. The die for machining the arc surface of a barrel cap according to claim 1, characterized in that: The positioning mechanism includes a first positioning pin (4) vertically protruding on the base plate (2) and a first threaded groove (201) recessed and parallel to the first positioning pin (4). The reference plate (3) is provided with a first positioning groove (301) into which the first positioning pin (4) can be inserted, a through hole (302) opposite to the first threaded groove (201), and a first fastening bolt (5) that passes through the through hole (302) and is screwed to the first threaded groove (201).

3. A die for machining the arc surface of a barrel cap according to claim 2, characterized in that: The positioning and locking mechanism includes a second fastening bolt (7), a second positioning pin (6), and a second threaded groove (303). The second positioning pin (6) and the second threaded groove (303) are distributed at both ends of each reference plate (3) in the insertion direction towards the insertion part (102) and correspond to an end cap mounting hole (104) respectively. The second fastening bolt (7) passes through the end cap mounting hole (104) and is screwed into the second threaded groove (303).

4. A die for machining the arc surface of a barrel cap according to claim 3, characterized in that: Each set of reference components has two reference plates (3) with a second positioning pin (6) and a second threaded groove (303) vertically spaced at both ends facing the insertion direction of the insertion part (102), and the second positioning pin (6) and the second threaded groove (303) of the two reference plates (3) are diagonally distributed.

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