Method for manufacturing a core part of a preform conveying device

Abstract

This invention relates to a manufacturing method for a core component of a preform conveying device. A rectangular sheet is prepared and positioned on a milling machine by side clamping. The part is centered and machined to its length and width, with a thickness allowance of 0.1 mm. On a grinding machine, the bottom surface is positioned, and limiting blocks are used to block the front, back, left, and right sides. The upper surface in the thickness direction is machined first, with a allowance of 0.03 mm. The workpiece is then flipped, and the lower surface is machined in the same way, ensuring a thickness tolerance of 20 ± 0.02 mm. On a CNC machine tool, the bottom and right sides are positioned, and a stepped shape is machined using a tungsten carbide four-flute end mill. A threaded hole is machined and tapped using a tungsten carbide drill bit. After flipping 180°, the part is clamped and positioned again, and a groove and an R130 arc surface are machined using a tungsten carbide four-flute end mill. The part is clamped in the thickness direction and positioned on both sides in the width direction. A milling machine is used to machine and tap the side holes. The right-angled edge of the part is used for positioning, and a 60° angled shim is used to align the workpiece. The part is clamped in the thickness direction, and a drilling machine is used to machine a 1.2 mm oblique hole. This process is optimized and the steps are simplified.

Description

Technical Field

[0001] This invention relates to a method for manufacturing a core component of a preform conveying device. Background Technology

[0002] Currently, the core components of preform conveying equipment are rectangular in shape, such as... Figures 8a-8b On one side of the front, there are four M5 threads that connect to two φ4.2mm deep 70mm holes on the end face, serving as air inlets; on the back, there are 20 φ1.2mm oblique holes that also connect to the φ4.2mm deep 70mm holes on the end face, serving as air outlets. On the other side, there is an R130 arc as a guide. Because these oblique holes are used to blow air to move the preform, there are requirements for the size and position of the holes, and there must be no machining burrs to prevent burrs from entering the preform.

[0003] The current common machining method is to use a CNC four-axis to rotate the workpiece to machine oblique holes. The machining process is complex and it is difficult to remove burrs, which affects the performance of the parts. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a method for manufacturing core components of a preform conveying device.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The manufacturing method of the core components of the preform conveying equipment is characterized by the following steps:

[0007] 1) Prepare a rectangular plate. On a vertical milling machine, position it on the bottom surface (104). Clamp the surface one (101) and surface two (102) in the 20mm thickness direction. Use a four-flute milling cutter to machine the upper surface (103), leaving a margin of 0.5mm. Then loosen the clamping position to relieve stress, flip it over and machine it. Machine the bottom surface (104) in the same way until the width dimension of 30mm is reached, ensuring perpendicularity.

[0008] 2) On a vertical milling machine, position it with surface one (101), clamp the upper surface (103) and the lower bottom surface (104) in the 30mm width direction, rough the outer shape with a four-flute end mill, leave a margin of 0.5mm, then loosen the clamping position to relieve stress, flip it over and process it in the same way, the length is 382.9 to the number, the thickness is 20mm and the dimension margin is 0.1mm;

[0009] 3) Position the surface one (101) on the grinding machine and block the surrounding area with limit blocks. First process the surface two (102) with a margin of 0.03mm. Then turn it over and process the surface one (101) in the same way. The thickness is 20±0.02mm to ensure flatness and keep the right angle of the edge sharp.

[0010] 4) On a CNC machine tool, with the right side face (105) as the positioning point, the upper surface (103) and the lower bottom face (104) are clamped together. The 24mm boss is rough machined with a four-flute tungsten carbide end mill, leaving a margin of 0.05mm. Then, it is finished with a new tungsten carbide four-flute end mill to ensure dimensions 307 and 24. The center hole is chamfered with a chamfer C2.5. The M5 and M4 thread bottom holes are machined with a tungsten carbide drill bit. The M5 and M4 threads are machined with M5 and M4 cutting taps respectively.

[0011] 5) On the CNC machine tool, flip the machine and position it on the right side (105). Clamp the upper surface (103) and the lower bottom surface (104). Use a four-flute end mill to machine the right side step, ensuring the step dimensions are 34.2, 38.7, and 3.2. Roughen the left R130 arc surface with a margin of 0.1mm. Then use a new tungsten carbide four-flute end mill to finish the R130 arc surface to ensure the dimension is 320. Use a 4mm diameter, 90° center drill to drill the center hole, use a tungsten carbide drill bit to drill the thread bottom hole, and use an M5 tap to machine the thread. Then use a chamfering cutter to chamfer C5.

[0012] 6) On a vertical milling machine, the upper surface (103), the lower bottom surface (104), and surface one (101) are positioned and clamped with surface one (101) and surface two (102). A φ4.2 hole with a depth of 70mm is machined on the right side surface (105) using a tungsten carbide drill bit. An M5 thread is machined using an M5 tap to ensure the positional dimensions 18 and 10 and the hole positional tolerance φ0.2.

[0013] 7) On the EDM drilling machine, surface one (101) is attached to the 60° angle pad and clamped with surface two (102). The workpiece is aligned with the oblique hole and positioned with the right angle of the part. The 1.2mm oblique hole is machined by EDM using a copper tube to ensure that the oblique hole angle is 30° and the position is φ0.2. All oblique holes are connected to the φ4.2 and 70mm deep hole on the end face. After machining, there are no burrs. The core part of the bottle preform conveying equipment is finished.

[0014] Furthermore, in the manufacturing method of the core component of the preform conveying equipment mentioned above, in step 1), the four-flute end mill is a φ12mm tungsten carbide end mill, and the vertical milling machine is a 16SS vertical milling machine.

[0015] Furthermore, in the manufacturing method of the core components of the preform conveying equipment mentioned above, in step 3), the grinding machine is a BST250 water grinding machine and the grinding wheel is an 180K diamond grinding wheel.

[0016] Furthermore, in the manufacturing method of the core components of the preform conveying equipment mentioned above, in step 4), the new tungsten carbide four-flute end mill is a φ4mm tungsten carbide end mill, the tungsten carbide drill bit is a 4.2mm and 5mm diameter four-flute tungsten carbide drill bit, and the machine tool is an XHAD765 machine tool.

[0017] Furthermore, in the manufacturing method of the core component of the preform conveying equipment mentioned above, in step 5), the new tungsten steel four-flute end mill is a φ4mmR0.5 tungsten steel end mill, and the machine tool is an XHAD765 machine tool.

[0018] Furthermore, in the manufacturing method of the core component of the preform conveying equipment mentioned above, in step 7), the copper tube is a 1.0mm diameter brass tube, and the machine tool is an SD26 EDM drilling machine.

[0019] Furthermore, in the manufacturing method of the core component of the preform conveying equipment described above, step 7) involves using a copper tube with a diameter of 1.0 mm to process a φ1.2 mm oblique hole, with a working voltage of 45 V, a current of 6 A, and a speed of 9 mm per minute, ensuring that the oblique hole size is φ1.2 ± 0.05, the angle is 30°, the positional accuracy is φ0.2, and all oblique holes penetrate the φ4.2 deep 70 hole on the end face.

[0020] Compared with the prior art, the present invention has significant advantages and beneficial effects, specifically reflected in the following aspects:

[0021] This invention scientifically optimizes the process, making multiple uses of conventional tooling and fixtures, making the processing operation simple and fast, the processing steps concise, the processing stability strong, and significantly reducing manufacturing costs and increasing production efficiency; especially in the perforation process, the right-angled edge after precision machining on a grinding machine is used for positioning, effectively ensuring the diameter and positional accuracy requirements of the oblique hole, the processing is burr-free, and the performance requirements of the parts are met.

[0022] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing specific embodiments of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the manufacturing process in step 1);

[0025] Figure 2 : A schematic diagram of the manufacturing process in step 2);

[0026] Figure 3 : A schematic diagram of the manufacturing process in step 3);

[0027] Figure 4 A schematic diagram of the manufacturing process in step 4);

[0028] Figure 5a Step 5) is a schematic diagram of the manufacturing process.

[0029] Figure 5b A top-view diagram of the manufacturing process in step 5);

[0030] Figure 6 Step 6) is a schematic diagram of the manufacturing process.

[0031] Figure 7 Step 7) is a schematic diagram of the manufacturing process.

[0032] Figure 8a A one-axis projection schematic diagram of the core component of the preform conveying equipment;

[0033] Figure 8b Another isometric schematic diagram of a core component of the preform conveying equipment. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, directional and ordinal terms are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] The manufacturing method of the core components of the preform conveying equipment, and the specific process steps are as follows:

[0037] 1) Prepare a rectangular sheet metal. On a 16SS vertical milling machine from Wangshun Company, position it on the bottom surface (104). Clamp it on surfaces one (101) and two (102) in the 20mm thickness direction. Use a φ12mm tungsten carbide four-flute end mill to machine the top surface (103), leaving a margin of 0.5mm. Then loosen the clamp to relieve stress, flip it over, and machine the bottom surface (104) in the same way until the width dimension of 30mm is reached. Ensure perpendicularity. Figure 1 ;

[0038] 2) On the 16SS vertical milling machine of Wangshun Company, with surface one (101) for positioning, the upper surface (103) and the lower bottom surface (104) are clamped in a 30mm width direction. The rough shape is made with a φ12mm tungsten carbide four-flute end mill, leaving a margin of 0.5mm. Then, the clamping position is loosened to relieve stress, and the surface is flipped over for machining. The shape is machined in the same way. The length between the left side surface (106) and the right side surface (105) is 382.9mm, and the thickness is 20mm with a margin of 0.1mm. The perpendicularity to the bottom surface is ensured to be 0.1mm. Figure 2 ;

[0039] 3) Position surface one (101) on a BST250 water grinder, with limit blocks around it. Use an 180K diamond grinding wheel and water to grind. First, process surface two (102), leaving a margin of 0.03mm. Turn it over and process surface one (101) in the same way, with a thickness of 20±0.02mm, ensuring a flatness of 0.1 and keeping the right angles of the edges sharp. Figure 3 ;

[0040] 4) On the OKUMA XHAD765 CNC machine tool, with the right side face (105) as the positioning point, the upper surface (103) and the lower bottom face (104) are clamped together. The 24mm boss is rough machined with a φ8mm four-flute tungsten carbide end mill, leaving a margin of 0.05mm. Then, it is finished with a new φ4mm tungsten carbide four-flute end mill to ensure dimensions 307 and 24. A 4mm diameter, 90° chamfering tool is used to chamfer the center hole with a C2.5 chamfer. M5 and M4 threaded bottom holes are machined with φ5 and φ4.2 tungsten carbide drill bits. M5 and M4 threads are machined with M5 and M4 cutting taps respectively. Figure 4 ;

[0041] 5) On the OKUMA XHAD765 CNC machine tool, perform the flipping process, positioning it on the right side (105), clamping the upper surface (103) and the lower bottom surface (104), and machining the right side step with an 8mm diameter four-flute end mill to ensure step dimensions of 34.2, 38.7, and 3.2. Roughen the left R130 arc surface with a margin of 0.1mm; then finish the R130 arc surface to the required dimensions with a new 4mm diameter R0.5 tungsten carbide four-flute end mill to ensure dimension 320; use a 4mm diameter, 90° center drill to drill the center hole, use a 4.2mm diameter tungsten carbide drill to drill the thread bottom hole, and use an M5 tap to machine the thread; then use an 8mm diameter, 90° chamfering cutter to chamfer C5, as shown. Figure 5a , 5b As shown;

[0042] 6) On the 16SS vertical milling machine of Wangshun Company, the upper surface (103), the lower bottom surface (104), and surface one (101) are used for positioning. Surface one (101) and surface two (102) are used for clamping. A φ4.2 hole with a depth of 70mm is machined on the right side face (105) using a tungsten carbide drill bit. An M5 thread is machined using an M5 tap, ensuring positional dimensions 18 and 10 and hole positional tolerance φ0.2. Figure 6 As shown;

[0043] 7) On the SD26 EDM drilling machine, attach surface one (101) to the 60° angle pad and clamp it with surface two (102). Align the workpiece with the oblique hole and position it with the right angle of the part. Use a copper tube with a diameter of 1.0mm to discharge process the 1.2mm oblique hole. The working voltage is 45V, the current is 6A, and the speed is 9mm per minute. Ensure that the oblique hole size is φ1.2±0.05, the angle is 30°, the position is φ0.2, all oblique holes are connected to the φ4.2 deep 70 hole on the end face, and there are no burrs after processing.

[0044] Obtain finished products of core components for preform conveying equipment, such as... Figure 8a , 8b .

[0045] This invention scientifically optimizes the process, making multiple uses of conventional tooling and fixtures, making the processing operation simple and fast, the processing steps concise, the processing stability strong, and significantly reducing manufacturing costs and increasing production efficiency; especially in the perforation process, the right-angled edge after precision machining on a grinding machine is used for positioning, effectively ensuring the diameter and positional accuracy requirements of the oblique hole, the processing is burr-free, and the performance requirements of the parts are met.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A method for manufacturing core components of a preform conveying device, characterized in that: Includes the following steps: 1) Prepare a rectangular plate. On a vertical milling machine, position it on the bottom surface (104). Clamp the surface one (101) and surface two (102) in the 20mm thickness direction. Use a four-flute milling cutter to machine the upper surface (103), leaving a margin of 0.5mm. Then loosen the clamping position to relieve stress, flip it over and machine it. Machine the bottom surface (104) in the same way until the width dimension of 30mm is reached, ensuring perpendicularity. 2) On a vertical milling machine, position it with surface one (101), clamp the upper surface (103) and the lower bottom surface (104) in the 30mm width direction, rough the outer shape with a four-flute end mill, leave a margin of 0.5mm, then loosen the clamping position to relieve stress, flip it over and process it in the same way, the length is 382.9 to the number, the thickness is 20mm and the dimension margin is 0.1mm; 3) Position the surface one (101) on the grinding machine and block the surrounding area with limit blocks. First process the surface two (102) with a margin of 0.03mm. Then turn it over and process the surface one (101) in the same way. The thickness is 20±0.02mm to ensure flatness and keep the right angle of the edge sharp. 4) On a CNC machine tool, with the right side face (105) as the positioning point, the upper surface (103) and the lower bottom face (104) are clamped together. The 24mm boss is rough machined with a four-flute tungsten carbide end mill, leaving a margin of 0.05mm. Then, it is finished with a new tungsten carbide four-flute end mill to ensure dimensions 307 and 24. The center hole is chamfered with a chamfer C2.

5. The M5 and M4 thread bottom holes are machined with a tungsten carbide drill bit. The M5 and M4 threads are machined with M5 and M4 cutting taps respectively. 5) On the CNC machine tool, flip the machine and position it on the right side (105). Clamp the upper surface (103) and the lower bottom surface (104). Use a four-flute end mill to machine the right side step, ensuring the step dimensions are 34.2, 38.7, and 3.

2. Roughen the left R130 arc surface with a margin of 0.1mm. Then use a new tungsten carbide four-flute end mill to finish the R130 arc surface to ensure the dimension is 320. Use a 4mm diameter, 90° center drill to drill the center hole, use a tungsten carbide drill bit to drill the thread bottom hole, and use an M5 tap to machine the thread. Then use a chamfering cutter to chamfer C5. 6) On a vertical milling machine, the upper surface (103), the lower bottom surface (104), and surface one (101) are positioned and clamped with surface one (101) and surface two (102). A φ4.2 hole with a depth of 70mm is machined on the right side surface (105) using a tungsten carbide drill bit. An M5 thread is machined using an M5 tap to ensure the positional dimensions 18 and 10 and the hole positional tolerance φ0.

2. 7) On the EDM drilling machine, surface one (101) is attached to the 60° angle pad and clamped with surface two (102). The workpiece is aligned with the oblique hole and positioned with the right angle of the part. The 1.2mm oblique hole is machined by EDM using a copper tube to ensure that the oblique hole angle is 30° and the position is φ0.

2. All oblique holes are connected to the φ4.2 and 70mm deep hole on the end face. After machining, there are no burrs. The core part of the bottle preform conveying equipment is finished.

2. The manufacturing method of the core component of the preform conveying equipment according to claim 1, characterized in that: Step 1), the four-flute end mill is a φ12mm tungsten carbide end mill, and the vertical milling machine is a 16SS vertical milling machine.

3. The manufacturing method of the core component of the preform conveying equipment according to claim 1, characterized in that: Step 3), the grinding machine is a BST250 water grinder, and the grinding wheel is an 180K diamond grinding wheel.

4. The manufacturing method of the core component of the preform conveying equipment according to claim 1, characterized in that: Step 4): The new tungsten carbide four-flute end mill is a φ4mm tungsten carbide end mill, the tungsten carbide drill bits are 4.2mm and 5mm diameter four-flute tungsten carbide drill bits, and the machine tool is an XHAD765 machine tool.

5. The manufacturing method of the core component of the preform conveying equipment according to claim 1, characterized in that: Step 5), the new tungsten carbide four-flute end mill is a φ4mmR0.5 tungsten carbide end mill, and the machine tool is an XHAD765 machine tool.

6. The manufacturing method of the core component of the preform conveying equipment according to claim 1, characterized in that: Step 7), the copper tube is a 1.0mm diameter brass tube, and the machine tool is an SD26 EDM drilling machine.

7. The method for manufacturing the core component of the preform conveying equipment according to claim 1 or 6, characterized in that: Step 7) Use a 1.0mm diameter copper tube to process a φ1.2mm oblique hole. The working voltage is 45V, the current is 6A, and the speed is 9mm per minute. Ensure that the oblique hole size is φ1.2±0.05, the angle is 30°, the position accuracy is φ0.2, and all oblique holes are connected to the φ4.2 deep 70 hole on the end face.

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