A precision tungsten steel mold processing clamp jig

Abstract

The application discloses a precision tungsten steel die machining clamp jig, and relates to the technical field of precision tungsten steel die machining, which comprises a main frame and a rubber pad, a fixed frame is arranged in the main frame, an inner plate is arranged in the middle of the fixed frame, a driving assembly for auxiliary fixation is arranged outside the inner plate, and the driving assembly comprises a double-head servo motor, a planetary gear I, a lead screw and a planetary gear II. The precision tungsten steel die machining clamp jig is capable of accurately pre-adjusting the position of the adjusting plate through cooperation of the threaded rod of the positioning assembly and the telescopic rod, is suitable for tungsten steel dies of different sizes, and is capable of stably moving the positioning plate through the planetary gear I, the planetary gear II and the guide rod, and forms bidirectional stable clamping through cooperation of the positioning plate and the fixed plate, so that die deviation is avoided, meanwhile, the rubber pad on the outer surface of the positioning plate and the rubber belt in the fixed frame are respectively used for buffering and protection in the clamping and transferring links, die surface scratching and falling damage are prevented, and the precision die machining requirement is met.

Description

Technical Field

[0001] This invention relates to the field of precision tungsten carbide mold processing technology, specifically a jig for precision tungsten carbide mold processing. Background Technology

[0002] Tungsten steel molds are widely used in the precision component forming and processing fields of the electronics, automobile and other industries due to their high hardness and wear resistance. However, the material is relatively brittle, and the requirements for clamping stability, positioning accuracy and operation efficiency during processing are extremely stringent. Even slight deviations may lead to mold damage or scrap of the processed parts.

[0003] For example, utility model application CN202022152149.5 relates to the field of mold processing technology, and in particular to a clamping fixture for mold processing, including a base, with a fixed outer frame fixedly connected to the center of the top surface of the base. This utility model, based on ordinary mold processing, incorporates a clamping optional device, solving the problem of inconvenience for processing personnel in clamping and flipping the molds being processed, thus failing to meet the needs of processing personnel. However, existing devices require continuous manual intervention for debris cleaning, multi-station expansion, and mold transfer, which not only increases labor intensity and reduces processing efficiency but also raises safety hazards associated with manual contact with the processing area.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a jig for precision tungsten carbide mold processing. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a jig for precision tungsten carbide mold processing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a jig for precision tungsten carbide mold processing, comprising a main frame and a rubber pad. A fixed frame is installed inside the main frame, and an internal plate is provided in the middle of the fixed frame. A drive assembly for auxiliary fixing is installed outside the internal plate. The drive assembly includes a dual-head servo motor, a first planetary gear, a lead screw, and a second planetary gear. The output end of the dual-head servo motor is equipped with the second planetary gear, and the outer surface of the second planetary gear is meshed with the first planetary gear. A lead screw is installed in the middle of one side of the first planetary gear, and a positioning plate is threaded on the outer surface of the lead screw. A guide rod is slidably installed inside the lead screw, and a fixed plate is provided at one end of the guide rod. The rubber pad is provided on the outer surface of the fixed plate.

[0007] Furthermore, the drive assembly also includes a connecting shaft and a scraper. The connecting shaft is mounted on the other output end of the dual-head servo motor, and a scraper is provided at the end of the connecting shaft.

[0008] Furthermore, the positioning plate is internally provided with a positioning component for assisting secondary adjustment, and the positioning component includes a locking block, a locking track, a threaded rod, an adjusting plate, and a telescopic rod. The locking block is integrally installed on one side of the positioning plate, and a locking track is provided on the other side of the positioning plate. A threaded rod is threadedly installed inside the positioning plate, and an adjusting plate is rotatably installed at the end of the threaded rod. A telescopic rod is installed on one side of the adjusting plate.

[0009] Furthermore, the end of the telescopic rod is fixedly disposed on one side of the positioning plate, and the positioning plate is fitted with a combination plate by means of a locking block and a locking channel.

[0010] Furthermore, the positioning plate and the combination plate have the same structure, and the lead screw is rotatably located inside one side of the fixed plate.

[0011] Furthermore, cover plates are snapped onto both sides of the inside of the fixing frame, and rubber strips are equidistantly arranged in the middle of the fixing frame.

[0012] Furthermore, a connecting plate is installed in the middle of one side of the fixed frame, and a hydraulic rod is provided on the outer surface of one side of the connecting plate.

[0013] Furthermore, a fixing plate is installed at the end of the hydraulic rod, and the fixing plate is fixedly installed on the top of the main frame.

[0014] Furthermore, side frames are installed on both sides of the main frame, and sliding blocks are slidably arranged inside the side frames.

[0015] Furthermore, the main frame has a hollow internal structure, and the slide is fixedly mounted on the bottom of a set of fixed plates.

[0016] This invention provides a jig for precision tungsten carbide mold processing, which has the following advantages: 1. This precision tungsten carbide mold processing fixture, through the cooperation of the threaded rod and telescopic rod of the positioning component, can accurately pre-adjust the position of the adjustment plate to adapt to tungsten carbide molds of different sizes. The drive component, through the transmission of planetary gear one and planetary gear two and the guidance of the guide rod, drives the positioning plate to move smoothly, forming a bidirectional stable clamping with the fixed plate to prevent mold displacement. At the same time, the rubber pad on the outer surface of the fixed plate and the rubber strip inside the fixed frame provide buffer protection during clamping and transfer, respectively, to prevent scratches on the mold surface and damage from falling, meeting the needs of precision mold processing.

[0017] 2. This precision tungsten carbide mold processing fixture features a dual-head servo motor that synchronously drives the clamping and cleaning actions. The clamping process requires no manual assistance, and the scraper cleans debris in real time to prevent mold stacking, reducing process interruption time. The positioning plate can be quickly assembled into a combination plate through the clamping blocks and channels, flexibly expanding the processing station and adapting to the simultaneous processing of multiple molds. In addition, the hydraulic rod, slide, and side frame work together to drive the fixed frame and mold to move smoothly without the need for manual adjustment of the mold position, greatly shortening the auxiliary operation time.

[0018] 3. The jig for precision tungsten carbide mold processing is convenient and efficient in terms of adjusting the positioning components, assembling the combination plates, and disassembling the cover plate. It does not require professional and complicated operations. After processing, the mold can be automatically transferred by gravity and rubber belt buffer. If there is any jamming, it can be cleared simultaneously with the help of scraper. The entire process reduces manual intervention, which not only reduces the labor intensity of operators, but also avoids the safety hazards that may be caused by manual contact with mold and debris during processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a jig for machining precision tungsten carbide molds according to the present invention; Figure 2 This is a schematic diagram of the drive assembly structure of a jig for precision tungsten carbide mold processing according to the present invention; Figure 3 This is a top view of the main frame structure of a jig for machining precision tungsten carbide molds according to the present invention; Figure 4 This is a schematic diagram of the positioning component structure of a jig for machining precision tungsten carbide molds according to the present invention; Figure 5 This is a schematic diagram of the fixing frame structure of a jig for machining precision tungsten carbide molds according to the present invention; Figure 6 This is a schematic diagram of the unfolded structure of the fixing frame and cover plate of a jig for machining precision tungsten carbide molds according to the present invention.

[0020] In the diagram: 1. Main frame; 2. Side frame; 3. Hydraulic rod; 4. Connecting plate; 5. Fixed frame; 6. Fixed plate; 7. Slide; 8. Rubber pad; 9. Fixed plate; 10. Drive assembly; 1001. Dual-head servo motor; 1002. Guide rod; 1003. Connecting shaft; 1004. Scraper; 1005. Planetary gear one; 1006. Lead screw; 1007. Planetary gear two; 11. Combination plate; 12. Positioning assembly; 1201. Locking block; 1202. Locking track; 1203. Threaded rod; 1204. Adjusting plate; 1205. Telescopic rod; 13. Cover plate; 14. Internal plate; 15. Rubber belt; 16. Positioning plate. Detailed Implementation

[0021] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0022] like Figures 1-6As shown, the present invention provides a technical solution: a jig for precision tungsten carbide mold processing, comprising a main frame 1, a side frame 2, a hydraulic rod 3, a connecting plate 4, a fixing frame 5, a fixing plate 6, a slide 7, a rubber pad 8, a fixed plate 9, a drive assembly 10, a dual-head servo motor 1001, a guide rod 1002, a connecting shaft 1003, a scraper 1004, a first planetary gear 1005, a lead screw 1006, a second planetary gear 1007, a combination plate 11, a positioning assembly 12, a locking block 1201, a locking track 1202, a threaded rod 1203, an adjusting plate 1204, a telescopic rod 1205, a cover plate 13, an inner plate 14, a rubber belt 15, and a positioning plate 16. A fixing frame 5 is installed inside the main frame 1, and an inner plate 14 is provided in the middle of the fixing frame 5. Both sides of the interior are fitted with cover plates 13, and rubber belts 15 are equidistantly arranged in the middle of the fixing frame 5. After the tungsten carbide mold is processed, the dual-head servo motor 1001 rotates in the opposite direction, so that the positioning plate 16 will move axially along the lead screw 1006. As a result, the adjusting plate 1204, which is indirectly connected to the positioning plate 16, will move away from the positioning 9. After processing, the tungsten carbide mold will be transferred to the surface of the cover plate 13 due to gravity, or the cover plate 13 can be pulled upward to separate it from the fixing frame 5, so that the tungsten carbide mold falls into the area of ​​the rubber belt 15. The rubber belt 15 is used for cushioning. When the tungsten carbide mold does not continue to be transferred downward in the area of ​​the rubber belt 15, the drive assembly 10 can be used to fix the next set of molds again, and the scraper 1004 is rotated accordingly. This system unblocks and transfers stuck tungsten carbide molds without requiring manual transfer by the user. An auxiliary fixing drive assembly 10 is mounted on the outside of the built-in plate 14. The drive assembly 10 includes a dual-head servo motor 1001, a first planetary gear 1005, a lead screw 1006, and a second planetary gear 1007. The output end of the dual-head servo motor 1001 is fitted with the second planetary gear 1007, and the outer surface of the second planetary gear 1007 is meshed with the first planetary gear 1005. A lead screw 1006 is mounted on the middle of one side of the first planetary gear 1005, and a positioning plate 16 is threaded onto the outer surface of the lead screw 1006. A guide rod 1002 is slidably mounted inside the lead screw 1006. The drive assembly 10 also includes a connecting shaft 1003 and a scraper 1004. A connecting shaft 1003 is installed at the other output end of the servo motor 1001, and a scraper 1004 is provided at the end of the connecting shaft 1003. A fixed plate 9 is provided at one end of the guide rod 1002, and a rubber pad 8 is provided on the outer surface of the fixed plate 9. The tungsten carbide mold is placed between the adjusting plate 1204 and the positioning plate 16. Then, the dual-head servo motor 1001 is started. One output end of the dual-head servo motor 1001 drives the second planetary gear 1007 to rotate. Since the second planetary gear 1007 meshes with the first planetary gear 1005, the power is transmitted to the first planetary gear 1005, which in turn drives the lead screw 1006 in the middle of one side of the first planetary gear 1005 to rotate. The outer surface of the lead screw 1006 is threadedly connected to the positioning plate 16. The guide rod 1002 is slidably provided inside the positioning plate 16.The guide rod 1002 serves as a guide and limiter, preventing the positioning plate 16 from shifting or rotating during movement. The positioning plate 16 moves axially with the lead screw 1006, causing the adjusting plate 1204, which is pre-positioned on one side, to simultaneously approach the mold, achieving double clamping in conjunction with the fixed plate 9. The fixed plate 9, connected to one end of the guide rod 1002, provides synchronous auxiliary positioning. The rubber pad 8 on the outer surface of the fixed plate 9 directly contacts the mold, increasing friction and protecting the mold surface. Through the coordinated action of the fixed plate 9 and the positioning plate 16, the mold is securely clamped horizontally. Simultaneously, the output end of the dual-head servo motor 1001 drives the connecting shaft 1003 to rotate. The scraper 1004 at the end of the connecting shaft 1003 rotates accordingly, cleaning the surface of the cover plate 13 and the area around the mold that has fallen onto it, removing residual debris. This also prevents the mold that has fallen onto the cover plate 13 from piling up after processing, facilitating transfer.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the positioning plate 16 has a positioning component 12 for auxiliary secondary adjustment. The positioning component 12 includes a locking block 1201, a locking track 1202, a threaded rod 1203, an adjusting plate 1204, and a telescopic rod 1205. The locking block 1201 is integrally installed on one side of the positioning plate 16, and the locking track 1202 is provided on the other side of the positioning plate 16. The threaded rod 1203 is threadedly installed inside the positioning plate 16, and the adjusting plate 1204 is rotatably installed at the end of the threaded rod 1203. The telescopic rod 1205 is installed on one side of the adjusting plate 1204, and the end of the telescopic rod 1205 is fixedly set on one side of the positioning plate 16. The positioning plate 16 is engaged with the combination plate 11 through the locking block 1201 and the locking track 1202. The positioning plate 16 and the combination plate 11 have the same structure. A lead screw 1006 is also present. The rotating mechanism is located inside one side of the fixed plate 9. It can be designed according to different tungsten carbide mold sizes. The threaded rod 1203 can be rotated in advance, and with the guide limit of the telescopic rod 1205, the adjusting plate 1204 can move horizontally. This allows the adjusting plate 1204 to be pre-adjusted about the extension position of the positioning plate 16. This makes it easy to clamp and fix tungsten carbide molds of different sizes simultaneously when the drive assembly 10 is driven, avoiding the limitation of fixing only tungsten carbide molds of a fixed size at a time, which affects processing efficiency. In addition, the positioning plate 16 is fitted with a combination plate 11 through the locking block 1201 and the locking channel 1202. This allows the combination plate 11 and the positioning plate 16 to be used together according to the needs of the processing station. This facilitates quick splicing and is conducive to rapid expansion of the processing station, thereby improving the processing efficiency of tungsten carbide molds.

[0024] like Figure 1As shown, a connecting plate 4 is installed in the middle of one side of the fixed frame 5, and a hydraulic rod 3 is provided on the outer surface of one side of the connecting plate 4. A fixed plate 6 is installed at the end of the hydraulic rod 3, and the fixed plate 6 is fixedly installed on the top of the main frame 1. Side frames 2 are installed on both sides of the main frame 1, and a slide block 7 is slidably installed inside the side frame 2. The interior of the main frame 1 has a hollow structure. The slide block 7 is fixedly installed at the bottom of a set of fixed plates 9. Through the design of the hydraulic rod 3 and the connecting plate 4, the fixed frame 5 connected to the connecting plate 4 can be driven to move the component connected to the slide block 7 in the horizontal position of the side frame 2, which is convenient for moving the fixed tungsten carbide mold without the user having to readjust the position of the fixed tungsten carbide mold.

[0025] In summary, as Figures 1-6As shown, this precision tungsten carbide mold processing fixture, when in use, first completes the initial positioning adjustment according to the size of the tungsten carbide mold to be processed. With the help of the adjustment function of the positioning component 12, the threaded rod 1203 inside the positioning plate 16 is rotated. The end of the threaded rod 1203 drives the adjusting plate 1204 to move horizontally. At the same time, the telescopic rod 1205 on one side of the adjusting plate 1204 extends and retracts synchronously, which plays a guiding and limiting role, ensuring that the adjusting plate 1204 moves smoothly without deviation, until the distance between the adjusting plate 1204 and the fixed plate 9 is adapted to the mold size. If multiple stations need to be processed at the same time, the combination plate 11 and the positioning plate 16 can be spliced ​​and fixed through the locking structure of the locking block 1201 and the locking channel 1202 on one side of the positioning plate 16, expanding the processing stations and improving the work efficiency. After the adjustment is completed, the tungsten carbide mold is placed smoothly between the adjusting plate 1204 and the positioning plate 16 to prepare for subsequent clamping. The dual-head servo motor 1001 in the drive component 10 is started to start the clamping action. One output end of the dual-head servo motor 1001 drives the second planetary gear 1007 to rotate. Since the second planetary gear 1007 meshes with the first planetary gear 1005, the power is transmitted to the first planetary gear 1005 through gear transmission, which in turn drives the lead screw 1006 in the middle of one side of the first planetary gear 1005 to rotate synchronously. Because the outer surface of the lead screw 1006 is threaded to the positioning plate 16, and a guide rod 1002 is slidably installed inside the positioning plate 16, the guide rod 1002 can limit the rotation of the positioning plate 16 with the lead screw 1006, and only guide it to move axially along the guide rod 1002 to avoid positioning offset. During the movement of the positioning plate 16... In the middle, the adjusting plate 1204, which is preset in position on one side, moves closer to the mold in sync. Together with the fixed plate 9 fixed at one end of the guide rod 1002, a bidirectional clamping force is formed to achieve stable clamping of the mold in the horizontal direction. At the same time, the rubber pad 8 set on the outer surface of the fixed plate 9 directly contacts the mold surface, which can increase the clamping friction to prevent the mold from sliding and avoid hard contact to avoid scratching the tungsten steel mold surface, thus ensuring the processing accuracy of the mold. While the mold is clamped and fixed and is being processed, the output end of the other end of the dual-head servo motor 1001 drives the connecting shaft 1003 to rotate, and the scraper 1004 at the end of the connecting shaft 1003 rotates synchronously.The scraper 1004 can clean the surface of the cover plate 13 in real time, removing mold debris that falls during processing and preventing debris accumulation from affecting processing accuracy. It also prevents finished molds from falling onto the surface of the cover plate 13 and stacking, facilitating subsequent mold transfer. If mold position needs to be adjusted during processing, it can be achieved through the cooperation of the hydraulic rod 3 and the connecting plate 4. One end of the hydraulic rod 3 is fixed to the fixing plate 6, which is fixed to the top of the main frame 1, and the other end is connected to the connecting plate 4 on one side of the fixing frame 5. Activating the hydraulic rod 3 drives the fixing frame 5 to move as a whole. Since the fixing frame 5 is connected to the slide 7 through related components, and the slide 7 is slidably set inside the side frames 2 on both sides of the main frame 1, it can guide the fixing frame 5 and the clamped mold to move smoothly in the horizontal direction, eliminating the need for manual mold position adjustment and improving processing convenience and positional accuracy. After mold processing is completed, the clamping action of the drive component 10 is turned off, and the control... The dual-head servo motor 1001 rotates in reverse, and the planetary gears 1007 and 1005 and the lead screw 1006 operate synchronously in reverse, driving the positioning plate 16 and the adjusting plate 1204 away from the mold and releasing the horizontal clamping force. At this time, the mold falls to the surface of the cover plate 13 on both sides inside the fixed frame 5 under the action of gravity, or the cover plate 13 is pulled upward to separate it from the fixed frame 5. The mold can fall directly to the rubber belt 15 area outside the inner plate 14 in the middle of the fixed frame 5. The rubber belt 15 plays a buffering role to prevent the mold from being damaged when it falls. If the mold gets stuck in the rubber belt 15 area and cannot be transferred smoothly, when the drive assembly 10 is started to clamp the next set of molds, the dual-head servo motor 1001 drives the connecting shaft 1003 and the scraper 1004 to rotate, which can simultaneously clear the stuck mold and push it to be transferred smoothly. There is no need for manual transfer of the mold, realizing the automated connection of the processing flow.

[0026] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A jig for machining precision tungsten carbide molds, comprising a main frame (1) and a rubber pad (8), characterized in that: The main frame (1) is equipped with a fixed frame (5) inside, and a built-in plate (14) is provided in the middle of the fixed frame (5). A drive assembly (10) for auxiliary fixing is installed on the outside of the built-in plate (14). The drive assembly (10) includes a dual-head servo motor (1001), a first planetary gear (1005), a lead screw (1006) and a second planetary gear (1007). The output end of the dual-head servo motor (1001) is equipped with the second planetary gear (1007), and the outer surface of the second planetary gear (1007) is meshed with the first planetary gear (1005). A lead screw (1006) is installed in the middle of one side of the first planetary gear (1005), and a positioning plate (16) is threaded on the outer surface of the lead screw (1006). A guide rod (1002) is slidably installed inside the lead screw (1006). A fixed plate (9) is provided at one end of the guide rod (1002), and a rubber pad (8) is provided on the outer surface of the fixed plate (9).

2. The jig for machining precision tungsten carbide molds according to claim 1, characterized in that: The drive assembly (10) also includes a connecting shaft (1003) and a scraper (1004). The connecting shaft (1003) is installed at the other output end of the dual-head servo motor (1001), and a scraper (1004) is provided at the end of the connecting shaft (1003).

3. The jig for precision tungsten carbide mold processing according to claim 1, characterized in that: The positioning plate (16) is internally provided with a positioning component (12) for assisting secondary adjustment. The positioning component (12) includes a locking block (1201), a locking channel (1202), a threaded rod (1203), an adjusting plate (1204), and a telescopic rod (1205). The locking block (1201) is integrally installed on one side of the positioning plate (16), and the locking channel (1202) is provided on the other side of the positioning plate (16). The threaded rod (1203) is threadedly installed inside the positioning plate (16), and the adjusting plate (1204) is rotatably installed at the end of the threaded rod (1203). The telescopic rod (1205) is installed on one side of the adjusting plate (1204).

4. The jig for machining precision tungsten carbide molds according to claim 3, characterized in that: The end of the telescopic rod (1205) is fixedly set on one side of the positioning plate (16), and the positioning plate (16) is fitted with the combination plate (11) by the locking block (1201) and the locking channel (1202).

5. The jig for machining precision tungsten carbide molds according to claim 4, characterized in that: The positioning plate (16) and the combination plate (11) have the same structure, and the lead screw (1006) is rotatably disposed inside one side of the fixed plate (9).

6. The jig for machining precision tungsten carbide molds according to claim 1, characterized in that: The fixed frame (5) has cover plates (13) installed on both sides inside, and rubber strips (15) are provided at equal intervals in the middle of the fixed frame (5).

7. A jig for machining precision tungsten carbide molds according to claim 6, characterized in that: A connecting plate (4) is installed in the middle of one side of the fixed frame (5), and a hydraulic rod (3) is provided on the outer surface of one side of the connecting plate (4).

8. A jig for machining precision tungsten carbide molds according to claim 7, characterized in that: The end of the hydraulic rod (3) is fitted with a fixing plate (6), and the fixing plate (6) is fixedly mounted on the top of the main frame (1).

9. A jig for machining precision tungsten carbide molds according to claim 1, characterized in that: The main frame (1) has side frames (2) installed on both sides, and the side frames (2) are slidably provided with slide blocks (7).

10. A jig for machining precision tungsten carbide molds according to claim 9, characterized in that: The main frame (1) has a hollow interior structure, and the slide (7) is fixedly mounted on the bottom of a set of fixed plates (9).

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