A punching device for engine cylinder block cam sand core

Abstract

The utility model relates to a kind of punching equipment for engine cylinder cam sand core, including machine table, sand core fixing frame being located on the machine table, drill head fixing frame being movably located on the machine table and the driving assembly for driving the drill head fixing frame to the sand core fixing frame close, the drill head fixing frame is connected with multiple air drills towards the sand core fixing frame, the drill head fixing frame is connected with the adjusting assembly for adjusting the number and position of the air drill, the sand core fixing frame and the drill head fixing frame between being equipped with guide frame, the guide frame is equipped with multiple adjustable guide block positions, the guide block is equipped with the guide through-hole coaxial with the air drill. To be processed sand core is placed to the sand core fixing frame, the drill head fixing frame is driven by the driving assembly, and multiple air drills are driven to the sand core close, to punch multiple holes to sand core simultaneously, greatly improve the efficiency and stability of sand core punching.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, and in particular to a drilling device for engine cylinder block cam sand core. Background Technology

[0002] Sand cores are materials used in casting production to manufacture mold cores, and are composed of casting sand, molding sand binder, etc. Sand cores generally require vent holes as exhaust channels to expel hot air, ensuring the safety and quality of the casting mold and the casting. In existing technologies, some of these vent holes are directly brought out during casting; others require manual drilling later using a drilling machine. Manual drilling has poor stability, low pass rate and low production efficiency. Furthermore, it can easily endanger the safety of operators. Therefore, this utility model proposes a drilling device for engine block cam sand cores. Utility Model Content

[0003] The main objective of this invention is to provide a drilling device for engine cylinder block cam core sanding, in order to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a drilling device for engine cylinder block cam core, comprising a machine base, a core fixing frame mounted on the machine base, a drill bit fixing frame movably mounted on the machine base, and a driving component for driving the drill bit fixing frame to move closer to the core core fixing frame. Multiple air drills facing the core core fixing frame are connected to the drill bit fixing frame. An adjustment component for adjusting the number and position of the air drills is connected to the drill bit fixing frame. A guide frame is provided between the core core fixing frame and the drill bit fixing frame. The guide frame has multiple position-adjustable guide blocks, and each guide block has a guide through hole coaxial with the air drill.

[0005] Preferably, the sand core fixing frame includes two first support frames disposed on the machine platform and a second support frame disposed on one side of the two first support frames. The top of the first support frame and the second support frame are provided with limiting grooves. A pressing cylinder is vertically disposed on one side of the first support frame, and a pressing block extending upwards from the first support frame is connected to the top rod of the pressing cylinder.

[0006] Preferably, the drive assembly includes a translation cylinder with its output end facing the sand core fixing frame, located on the machine platform. The push rod of the translation cylinder is connected to an L-shaped plate, and the drill bit fixing frame is fixed to the upper surface of the L-shaped plate.

[0007] Preferably, the adjusting assembly includes a T-shaped slider. The drill bit holder has a through-slot on one side facing the core holder, which matches the T-shaped slider. The T-shaped slider is slidably connected in the slot. A support block is connected to the front of the T-shaped slider. The air drill is fixed to the top of the support block. A slot is vertically provided at the bottom of the support block. A first fastening bolt is provided in the slot. The T-shaped slider has a first screw hole. The first fastening bolt is screwed into the first screw hole to fix the support block and the slider.

[0008] Preferably, the top of the support block is provided with a vertical groove, and both sides of the vertical groove are provided with arc-shaped grooves. The two arc-shaped grooves form a mounting hole, and the air drill is installed in the mounting hole. The top of the support block is connected to both sides of the vertical groove by a second fastening bolt, thereby clamping the air drill.

[0009] Preferably, the bottom end of the guide block is provided as a C-shaped clamp, the C-shaped clamp is clamped on the top end of the guide frame, the front and rear sides of the guide frame are provided with second limiting grooves, the end of the C-shaped clamp is slidably connected in the second limiting groove, and the C-shaped clamp is fixed to the guide frame by a third fastening bolt.

[0010] The beneficial effects of this utility model are as follows: the sand core to be processed is placed on the sand core fixing frame, and the driving component drives the drill bit fixing frame to move multiple air drills closer to the sand core, thereby drilling multiple holes in the sand core at the same time, which greatly improves the efficiency and stability of sand core drilling. The number and position of the air drills can be freely adjusted by the adjusting component to meet the drilling needs of different sand cores and enhance practicality. Attached Figure Description

[0011] Figure 1 This is a diagram showing the layout of a drilling device for an engine cylinder block cam core during operation, as illustrated in the example.

[0012] Figure 2 This is a schematic diagram of the drill bit holder structure.

[0013] Figure 3 This is a schematic diagram of the support block structure.

[0014] Figure 4 This is a schematic diagram of the guide block structure.

[0015] The numbers in the image represent: 1. Machine base; 2. Sand core fixing frame; 3. Drill bit fixing frame; 4. Drive assembly; 5. Air drill; 6. Adjustment assembly; 7. Guide frame; 8. Guide block; 9. Guide through hole; 10. First support frame; 11. Second support frame; 12. Limiting groove; 13. Clamping cylinder; 14. Clamping block; 15. Sand core; 16. Translation cylinder; 17. L-shaped plate; 18. T-shaped slider; 19. Slide groove; 20. Support block; 21. Slot hole; 22. First fastening bolt; 23. First screw hole; 24. Vertical groove; 25. Arc groove; 26. Second fastening bolt; 27. C-shaped clamp; 28. Second limiting groove; 29. ​​Third fastening bolt. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments.

[0017] Example: like Figure 1-4 As shown, this utility model discloses a drilling device for engine cylinder block camshaft cores, comprising a machine base 1, a core fixing frame 2 mounted on the machine base 1, a drill bit fixing frame 3 movably mounted on the machine base 1, and a drive assembly 4 for driving the drill bit fixing frame 3 towards the core fixing frame 2. Multiple air drills 5 facing the core fixing frame 2 are connected to the drill bit fixing frame 3. Each air drill 5 is connected to a compressed air tank via pipes and solenoid valves. An adjustment assembly 6 for adjusting the number and position of the air drills 5 is connected to the drill bit fixing frame 3. A guide frame 7 is provided between the core fixing frame 2 and the drill bit fixing frame 3, and the guide frame 7 has multiple positions. An adjustable guide block 8 is provided, which has a guide through hole 9 coaxial with the air drill 5 for calibrating the drill bit of the air drill 5. The sand core 15 to be processed is placed on the sand core fixing frame 2. The drive component 4 drives the drill bit fixing frame 3 to move multiple air drills 5 closer to the sand core 15. The solenoid valve is opened, and the high-pressure gas in the compressed air tank drives the drill bit of the air drill 5 to rotate, thereby drilling the sand core 15. Multiple air drills 5 can drill multiple holes at the same time, thereby greatly improving drilling efficiency. The number and position of the air drills 5 can be freely adjusted by the adjustment component 6 to meet the drilling requirements of different sand cores 15.

[0018] The sand core fixing frame 2 includes two first support frames 10 mounted on the machine base 1 and a second support frame 11 mounted on one side of the two first support frames 10. The top of the first support frame 10 and the second support frame 11 are provided with limiting grooves 12. A pressing cylinder 13 is vertically mounted on one side of the first support frame 10. A pressing block 14 extending upwards from the first support frame 10 is connected to the top rod of the pressing cylinder 13. The pressing cylinder 13 drives the pressing block 14 downwards to press and fix the sand core 15.

[0019] The drive assembly 4 includes a translation cylinder 16 with its output end facing the sand core fixing frame 2, located on the machine platform. The top rod of the translation cylinder 16 is connected to an L-shaped plate 17, and the drill bit fixing frame 3 is fixed to the upper surface of the L-shaped plate 17.

[0020] The adjusting assembly 6 includes a T-shaped slider 18. The drill bit holder 3 has a through-groove 19 on one side facing the core holder 2, matching the T-shaped slider 18. The T-shaped slider 18 is slidably connected within the groove 19. A support block 20 is connected to the front of the T-shaped slider. The pneumatic drill 5 is fixed to the top of the support block 20. A vertical slot 21 is provided at the bottom of the support block 20. A first fastening bolt 22 is provided in the slot 21. The T-shaped slider 18 has a first screw hole 23, and the first fastening bolt 22 is screwed into the slot 21. The first fastening bolt 22 provides an outward pulling force to the T-shaped slider 18, thereby pressing the T-shaped slider 18 against the inner wall of the slide groove 19 and fixing the T-shaped slider 18. Loosening the first fastening bolt 22 allows adjustment of the number and position of the T-shaped sliders 18 in the slide groove 19, thus facilitating adjustment of the number and position of the air drill 5. After the first fastening bolt 22 is loosened, the support block 20 can be adjusted longitudinally, thereby adjusting the height of the air drill 5.

[0021] The top of the support block 20 is provided with a vertical groove 24, and both sides of the vertical groove 24 are provided with arc-shaped grooves 25. The two arc-shaped grooves 25 form a mounting hole. The air drill 5 is installed in the mounting hole. The top of the support block 20 is connected to both sides of the vertical groove 24 by a second fastening screw 26, thereby clamping the air drill 5, which facilitates the installation and replacement of the air drill 5.

[0022] The bottom end of the guide block 8 is provided with a C-shaped clamp 27, which is clamped to the top of the guide frame 7. The guide frame 7 has a second limiting groove 28 on both the front and rear sides. The end of the C-shaped clamp 27 is slidably connected in the second limiting groove 28. The C-shaped clamp 27 is fixed to the guide frame 7 by a third fastening bolt 29, thereby facilitating the adjustment of the number and position of the guide blocks 8 so that they can be adapted to the sand core 15 currently being processed.

[0023] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A drilling device for engine cylinder block cam sand core, characterized in that: The device includes a machine base, a sand core fixing frame mounted on the machine base, a drill bit fixing frame movably mounted on the machine base, and a drive assembly for driving the drill bit fixing frame to move closer to the sand core fixing frame. Multiple air drills facing the sand core fixing frame are connected to the drill bit fixing frame. An adjustment assembly for adjusting the number and position of the air drills is connected to the drill bit fixing frame. A guide frame is provided between the sand core fixing frame and the drill bit fixing frame. The guide frame has multiple position-adjustable guide blocks, and each guide block has a guide through hole coaxial with the air drill.

2. The drilling equipment for engine cylinder block cam sand core according to claim 1, characterized in that: The sand core fixing frame includes two first support frames on the machine platform and a second support frame on one side of the two first support frames. The top of the first support frame and the second support frame are provided with limiting grooves. A clamping cylinder is vertically provided on one side of the first support frame. A pressure block extending upwards from the first support frame is connected to the top rod of the clamping cylinder.

3. The drilling equipment for engine cylinder block cam sand core according to claim 1, characterized in that: The drive assembly includes a translation cylinder mounted on the machine base with its output end facing the core fixing frame. The push rod of the translation cylinder is connected to an L-shaped plate, and the drill bit fixing frame is fixed to the upper surface of the L-shaped plate.

4. The drilling equipment for engine cylinder block cam sand core according to claim 1, characterized in that: The adjustment assembly includes a T-shaped slider. The drill bit holder has a through-slot on one side facing the core holder, which matches the T-shaped slider. The T-shaped slider is slidably connected in the slot. A support block is connected to the front of the T-shaped slider. The air drill is fixed to the top of the support block. The bottom of the support block has a vertical slot. A first fastening bolt is provided in the slot. The T-shaped slider has a first screw hole. The first fastening bolt is screwed into the first screw hole to fix the support block and the slider.

5. The drilling equipment for engine cylinder block cam sand core according to claim 4, characterized in that: The top of the support block is provided with a vertical groove, and there are arc-shaped grooves on both sides of the vertical groove. The two arc-shaped grooves form a mounting hole. The air drill is installed in the mounting hole. The top of the support block is connected to the two sides of the vertical groove by a second fastening bolt, thereby clamping the air drill.

6. The drilling equipment for engine cylinder block cam sand core according to claim 1, characterized in that: The bottom end of the guide block is provided with a C-shaped clamp, which is clamped to the top of the guide frame. The guide frame is provided with second limiting grooves on both the front and rear sides. The end of the C-shaped clamp is slidably connected in the second limiting groove. The C-shaped clamp is fixed to the guide frame by a third fastening bolt.

Images