Drilling device for injection mold

Abstract

The utility model discloses a drilling device for an injection mold, which relates to the technical field of drilling equipment and comprises a machine tool, a feeding device is mounted at the top end of the machine tool, a drill bit is clamped in the center of the bottom surface of the feeding device, a plurality of fixing blocks are connected to the bottom end of the feeding device, and a telescopic rod is arranged at the bottom end of each fixing block. The bottom end of each telescopic rod is connected with a scrap removing block matched with the drill bit, a guiding inclined face is arranged on the face, coplanar with the axis of the drill bit, of each scrap removing block, and a collecting groove matched with the corresponding guiding inclined face is formed in each scrap removing block. When a feeding device on a machine tool drives a drill bit to drill a die, cutting chips brought out by the drill bit enter the collecting groove through the guide inclined face along with rotation of the chip removing block, the cutting chips are prevented from influencing normal machining of the drill bit, and after work is completed, the limiting plate is opened, the cutting chips are taken out, and the situation that next use is influenced is avoided.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, specifically to a drilling device for injection molds. Background Technology

[0002] Injection molds are crucial tools in the plastics processing industry, used to produce plastic products of various shapes and sizes. The design and manufacture of injection molds directly affect product quality, production efficiency, and cost. The widespread use of plastics in the late 19th and early 20th centuries spurred the birth and development of injection molding technology. With the continuous emergence of new plastic materials, such as polyethylene, polypropylene, and polystyrene, the demand for injection molds has also increased. The invention of the injection molding machine is the foundation of injection mold development. In summary, the development of injection molds is multifaceted, including the rise of the plastics industry, technological innovation, market demand, environmental requirements, automation and intelligence, international competition, regulations and standards, and innovative design. These factors have collectively driven the continuous progress of injection mold technology and the sustainable development of the industry.

[0003] The injection mold drilling device is a key piece of equipment in the injection mold manufacturing process. With the increasing demand for plastic products and the advancement of injection molding technology, the requirements for mold manufacturing precision are becoming increasingly stringent. Drilling is an indispensable part of mold manufacturing. The basic structure of the injection mold drilling device includes the following main parts: the machine tool body, which provides a stable operating platform and necessary mechanical support; the CNC system, which controls the precise movement of the drilling device to achieve automated operation; the spindle system, which drives the drill bit to rotate and perform drilling operations; the feed system, which controls the feed speed and depth of the drill bit; and safety devices, which ensure operational safety and prevent accidental injuries.

[0004] Current injection mold drilling devices generate waste chips during use, which block the cutting grooves, affect drilling accuracy, and long chips can wrap around the drill bit, hindering operation. In addition, the clamping device of the drilling device needs to be changed to the corresponding clamp when facing different molds, which is very cumbersome. Therefore, we need to design an injection mold drilling device that can clean up cutting chips and adapt to various molds. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a drilling device for injection molds to solve the technical problems of traditional drilling devices having cutting chips and requiring the replacement of fixtures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drilling device for injection molds, comprising a machine tool, a feeding device installed at the top of the machine tool, a drill bit held at the center of the bottom surface of the feeding device, a plurality of fixing blocks connected to the bottom end of the feeding device, and a telescopic rod provided at the bottom end of each fixing block, a chip removal block cooperating with the drill bit at the bottom end of each telescopic rod, a guide slope provided on one side of each chip removal block coplanar with the drill bit axis, and a collection groove cooperating with the corresponding guide slope provided inside each chip removal block.

[0007] By adopting the above technical solution, when the feed device on the machine tool drives the drill bit to drill a hole in the mold, the telescopic rod retracts after the chip removal block contacts the mold to avoid affecting the normal drilling operation of the drill bit. As the chip removal block rotates, the cutting chips carried out by the drill bit enter the collection groove through the guide slope to prevent the cutting chips from affecting the normal processing of the drill bit.

[0008] The present invention is further configured such that a limiting plate is rotatably connected to the side of each chip removal block away from the guide slope.

[0009] By adopting the above technical solution, after the work is completed, the limiting plate can be opened and the cutting chips can be removed to avoid affecting the next use.

[0010] The present invention is further configured such that each of the fixed blocks has a first sliding groove on its bottom surface, each of the telescopic rods has a slider connected to its top end that slides in contact with the corresponding first sliding groove, each of the fixed blocks has a second sliding groove inside the first sliding groove, each slider has a limiting block connected to one side that slides in contact with the corresponding second sliding groove, and each limiting block has a plurality of one-way teeth connected to its outer surface that cooperate with the corresponding first sliding groove.

[0011] By adopting the above technical solution, when drilling holes in the mold, the diameter of the drill bit is different depending on the requirements. Therefore, after the drill bit is installed, press the limiting block and slide it along the second slide groove, which will drive the slider on the telescopic rod to slide along the first slide groove, so that the chip removal block is close to the drill bit. After adjustment, release the limiting block. At this time, the one-way teeth on the limiting block will engage with the inner wall of the first slide groove, thereby completing the fixing of the chip removal block.

[0012] The present invention is further configured such that a drive device is installed on both sides below the feed device on the machine tool, and the output ends of the two drive devices are connected to a main clamping block. An auxiliary clamping block is rotatably connected to the upper and lower ends of the side of the two main clamping blocks that are close to each other. Several positioning holes are provided on the two main clamping blocks near the corresponding auxiliary clamping blocks. A positioning pin that slides in contact with the corresponding positioning hole is slidably connected to one end of the connection between each auxiliary clamping block and the corresponding main clamping block. The drive device is a hydraulic structure that drives the main clamping blocks to move horizontally. The function of the feed device is to drive the rotation of the drill bit and the fixed block and to control the feed speed and depth of the drill bit.

[0013] By adopting the above technical solution, depending on the shape of the mold, the positioning pin is pulled open so that it disengages from the corresponding positioning hole. The unfolding angle of the auxiliary clamping block is adjusted. After the unfolding angle is determined, the positioning pin is reinserted and re-inserted into the positioning hole to complete the fixation between the main clamping block and the auxiliary clamping block. Finally, the driving device drives the main clamping block to move inward to complete the clamping of the mold.

[0014] In summary, the present invention has the following main advantages:

[0015] This invention utilizes a machine tool feed device to drive a drill bit to drill a hole in a mold. As the chip removal block rotates, the cutting chips carried out by the drill bit enter a collection groove through a guide slope, preventing the chips from affecting the normal processing of the drill bit. After the work is completed, the limit plate is opened to remove the cutting chips to avoid affecting the next use. Depending on the shape of the mold, the positioning pin is pulled open, the unfolding angle of the auxiliary clamping block is adjusted, and after determining the unfolding angle, the positioning pin is reinserted. Finally, the drive device drives the main clamping block to move inward to complete the clamping of the mold. Attached Figure Description

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a side sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a top sectional view of the overall structure of this utility model;

[0019] Figure 4 This is a front sectional view of the overall structure of this utility model;

[0020] Figure 5 For the utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 6 For the utility model Figure 2 Enlarged view of the structure at point B;

[0022] Figure 7 For the utility model Figure 3 Enlarged view of the structure at point C.

[0023] In the diagram: 1. Machine tool; 2. Drive unit; 3. Feed unit; 4. Fixed block; 5. Telescopic rod; 6. Chip removal block; 7. Guide slope; 8. Collection groove; 9. Limiting plate; 10. Main clamping block; 11. Auxiliary clamping block; 12. Positioning hole; 13. Positioning pin; 14. First slide groove; 15. Slider; 16. Second slide groove; 17. Limiting block; 18. One-way tooth. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] A drilling device for injection molds, such as Figure 1-7 As shown, the machine tool includes a machine tool 1. A feed device 3 is installed at the top of the machine tool 1. A drill bit is held in the center of the bottom surface of the feed device 3. Several fixed blocks 4 are connected to the bottom of the feed device 3, and each fixed block 4 is provided with a telescopic rod 5 at the bottom. Each telescopic rod 5 is connected with a chip removal block 6 that cooperates with the drill bit at the bottom. Each chip removal block 6 has a guide slope 7 on the side coplanar with the drill bit axis. Each chip removal block 6 has a collection groove 8 inside that cooperates with the corresponding guide slope 7. When the feed device 3 drives the drill bit to drill a hole in the mold on the machine tool 1, the telescopic rod 5 retracts after the chip removal block 6 contacts the mold to avoid affecting the normal drilling operation of the drill bit. As the chip removal block 6 rotates, the cutting chips carried out by the drill bit enter the collection groove 8 after passing through the guide slope 7, preventing the cutting chips from affecting the normal processing of the drill bit.

[0027] Each chip removal block 6 has a rotatable limit plate 9 on the side away from the guide slope 7. After the work is completed, the limit plate 9 is opened and the cutting chips are removed to avoid affecting the next use.

[0028] Each fixing block 4 has a first sliding groove 14 on its bottom surface. Each telescopic rod 5 has a slider 15 connected to its top end, which slides in contact with the corresponding first sliding groove 14. Each fixing block 4 has a second sliding groove 16 inside the first sliding groove 14. Each slider 15 has a limiting block 17 connected to one side, which slides in contact with the corresponding second sliding groove 16. Each limiting block 17 has several one-way teeth 18 connected to its outer surface, which cooperate with the corresponding first sliding groove 14. When drilling, the diameter of the drill bit varies depending on the requirements. Therefore, after the drill bit is installed, the limiting block 17 is pressed and slid along the second sliding groove 16, which drives the slider 15 on the telescopic rod 5 to slide along the first sliding groove 14, so that the chip removal block 6 is close to the drill bit. After adjustment, the limiting block 17 is released. At this time, the one-way teeth 18 on the limiting block 17 engage with the inner wall of the first sliding groove 14, thereby completing the fixing of the chip removal block 6.

[0029] On the machine tool 1, drive units 2 are installed on both sides below the feed device 3. The output ends of both drive units 2 are connected to main clamping blocks 10. Auxiliary clamping blocks 11 are rotatably connected to the upper and lower ends of the side of the two main clamping blocks 10 that are close to each other. Several positioning holes 12 are provided on each main clamping block 10 near the corresponding auxiliary clamping block 11. A positioning pin 13, which slides in contact with the corresponding positioning hole 12, is slidably connected to one end of the connection between each auxiliary clamping block 11 and the corresponding main clamping block 10. The drive units 2 drive the main clamping blocks 10. The horizontally moving hydraulic structure, the feeding device 3, drives the rotation of the drill bit and the fixed block 4 and controls the feed speed and depth of the drill bit. According to the different shapes of the mold, the positioning pin 13 is pulled open, so that the positioning pin 13 is disengaged from the corresponding positioning hole 12. The unfolding angle of the auxiliary clamping block 11 is adjusted. After the unfolding angle is determined, the positioning pin 13 is reinserted and re-inserted into the positioning hole 12, completing the fixation between the main clamping block 10 and the auxiliary clamping block 11. Finally, the driving device 2 drives the main clamping block 10 to move inward to complete the clamping of the mold.

[0030] Working principle: Depending on the shape of the mold, pull open the positioning pin 13 so that the positioning pin 13 disengages from the corresponding positioning hole 12. Adjust the unfolding angle of the auxiliary clamping block 11. After determining the unfolding angle, reinsert the positioning pin 13. The positioning pin 13 is reinserted into the positioning hole 12, completing the fixation between the main clamping block 10 and the auxiliary clamping block 11. Finally, the drive device 2 drives the main clamping block 10 to move inward to complete the clamping of the mold. Then, when the drill bit is driven by the feed device 3 on the machine tool 1 to drill holes in the mold, the chip removal block 6 retracts the telescopic rod 5 after contacting the mold to avoid affecting the normal drilling work of the drill bit. As the chip removal block 6 rotates, the cutting chips brought out by the drill bit enter the collection groove 8 through the guide slope 7 to prevent the cutting chips from affecting the normal processing of the drill bit. After the work is completed, open the limit plate 9 and take out the cutting chips to avoid affecting the next use.

[0031] Based on the above structure, although embodiments of the present utility model have been shown and described in this embodiment, these specific embodiments are merely explanations of the present utility model and are not intended to limit the utility model. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present utility model, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A drilling device for injection molds, comprising a machine tool (1), characterized in that: The top of the machine tool (1) is equipped with a feed device (3). The bottom center of the feed device (3) holds a drill bit. The bottom end of the feed device (3) is connected to several fixed blocks (4). Each fixed block (4) is provided with a telescopic rod (5) at its bottom end. Each telescopic rod (5) is connected with a chip removal block (6) that cooperates with the drill bit at its bottom end. Each chip removal block (6) has a guide slope (7) on one side that is coplanar with the drill bit axis. Each chip removal block (6) has a collection groove (8) inside that cooperates with the corresponding guide slope (7).

2. The injection mold drilling device according to claim 1, characterized in that: Each of the debris removal blocks (6) has a limiting plate (9) rotatably connected to the side away from the guide ramp (7).

3. The injection mold drilling device according to claim 2, characterized in that: Each of the fixed blocks (4) has a first groove (14) on its bottom surface, and each of the telescopic rods (5) has a slider (15) connected to its top end that slides in contact with the corresponding first groove (14). Each of the fixed blocks (4) has a second groove (16) inside the first groove (14), and each of the sliders (15) has a limiting block (17) connected to one side that slides in contact with the corresponding second groove (16).

4. The injection mold drilling device according to claim 3, characterized in that: Each of the limiting blocks (17) has a number of one-way teeth (18) on its outer surface that cooperate with the corresponding first slide groove (14).

5. The injection mold drilling device according to claim 1, characterized in that: The machine tool (1) is equipped with drive devices (2) on both sides below the feed device (3), and the output ends of the two drive devices (2) are connected to the main clamping block (10).

6. The injection mold drilling device according to claim 5, characterized in that: Auxiliary clamping blocks (11) are rotatably connected to the upper and lower ends of the two main clamping blocks (10) on the side that are close to each other. Several positioning holes (12) are opened near the corresponding auxiliary clamping blocks (11) of the two main clamping blocks (10). A positioning pin (13) that slides in contact with the corresponding positioning hole (12) is slidably connected to one end of the connection between each auxiliary clamping block (11) and the corresponding main clamping block (10).

7. The injection mold drilling device according to claim 5, characterized in that: The drive device (2) is a hydraulic structure that drives the main clamping block (10) to move horizontally. The function of the feed device (3) is to drive the rotation of the drill bit and the fixed block (4) and control the feed speed and depth of the drill bit.

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