A high-precision die punching processing equipment and a processing method

Abstract

The application relates to the field of boring technology, in particular to a high-precision punching machining equipment and machining method for a die, which comprises a machine tool, a rotating shaft and a boring tool, a clamping mechanism is arranged on the machine tool, the clamping mechanism is used for fixing the die and driving the die to move in the horizontal direction, a motor and a boring mechanism are further arranged, the motor is vertically arranged on the top of the machine tool, the boring mechanism is arranged on the machine tool and located between the motor and the clamping mechanism, the boring mechanism is in transmission connection with the output shaft of the motor and the rotating shaft respectively, and the boring tool is detachably arranged at the bottom of the rotating shaft. According to the application, the rotating shaft simultaneously realizes the composite motion of rotation, revolution and vertical reciprocating movement through the boring mechanism, a multi-degree-of-freedom cutting track of the boring tool is formed, the cutting force of single cutting can be reduced, the friction heat accumulation between the tool and the workpiece can be reduced, and the thermal deformation in the machining process can be inhibited. The flexible movement of the clamping mechanism in the horizontal direction enables the equipment to complete the continuous machining of multiple hole positions of the die in one clamping.

Description

Technical Field

[0001] This invention relates to the field of boring technology, specifically to a high-precision drilling equipment and method for molds. Background Technology

[0002] In the mold manufacturing industry, the machining quality of high-precision hole systems is directly related to the assembly accuracy and service life of the mold. Traditional mold drilling equipment usually uses a single rotary motion for cutting operations. The tool only rotates around its own axis and feeds linearly. This simple motion form is prone to generating large cutting forces and frictional heat during the machining process, causing thermal deformation of the workpiece and the tool, which in turn affects the dimensional accuracy and surface quality of the hole.

[0003] With the increasing demands for product precision in the mold industry and the widespread application of high-strength, high-hardness mold materials, existing processing equipment faces more severe challenges. On the one hand, the accumulation of cutting heat accelerates tool wear, shortens tool life, and increases tool change frequency and production downtime. On the other hand, multiple clamping operations are not only inefficient, but also make it difficult to guarantee the positional accuracy of the hole system due to repeated positioning errors. Especially when machining multi-hole molds, the cumulative error often exceeds the allowable range.

[0004] Furthermore, traditional equipment lacks effective means to control thermal deformation during processing. When the workpiece expands due to heat, the actual machined dimensions deviate from the theoretical design, resulting in dimensional errors after cooling. Simultaneously, the deterioration of the cutting condition due to tool wear further exacerbates the instability of machining quality, creating a vicious cycle of declining precision. Therefore, how to effectively control thermal deformation, extend tool life, and reduce the number of clamping operations without sacrificing machining efficiency has become a critical issue that urgently needs to be addressed in high-precision die drilling technology. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision drilling equipment and method for molds to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A high-precision drilling processing equipment for molds includes a machine tool, a rotating shaft, and a boring bar. The machine tool is equipped with a clamping mechanism, which is used to fix the mold and can drive the mold to move horizontally as needed. It also includes a motor and a boring mechanism. The motor is vertically mounted on the top of the machine tool, and the boring mechanism is disposed on the machine tool and located between the motor and the clamping mechanism. The boring mechanism is connected to the output shaft of the motor and the rotating shaft respectively. The boring tool is detachably mounted on the bottom of the rotating shaft. When the motor starts, the boring mechanism will start to operate under the drive of the motor. The boring mechanism enables the rotating shaft to rotate on its own axis and revolve around the output shaft of the motor while reciprocating in the vertical direction. The boring tool will follow the rotating shaft to perform compound motion, thereby performing boring operations on the mold on the clamping mechanism.

[0007] The high-precision drilling equipment for molds described above: The clamping mechanism includes a slide block and a threaded rod. The slide block is horizontally slidably mounted on the machine tool, and the threaded rod is horizontally rotatably mounted on the machine tool. The threaded rod and the slide are threaded together, and a handwheel is coaxially provided at one end of the threaded rod.

[0008] The high-precision drilling equipment for molds described above: Two clamps are slidably arranged on the slide along its length, and the two clamps are symmetrically arranged. A bidirectional lead screw is horizontally rotatably arranged on the slide. The bidirectional lead screw is threaded into the two clamps respectively, and a throttle is coaxially provided at one end of the bidirectional lead screw.

[0009] The high-precision drilling equipment for molds described above: The boring mechanism includes a sleeve, a rotating rod, a lifting plate, and a swing rod. The top of the sleeve is coaxially arranged with the output shaft of the motor. The machine tool is equipped with a guide frame, and the lifting plate is vertically slidably mounted on the guide frame.

[0010] The high-precision drilling equipment for molds described above: The guide frame is provided with a bearing seat, the rotating rod is rotatably mounted on the bearing seat, and the top of the rotating rod is inserted into the sleeve and slides in cooperation with it. The outer wall of the rotating rod is provided with a protruding post along its length, and the inner wall of the sleeve is provided with a groove along its length, and the protruding post is slidably fitted into the groove.

[0011] The high-precision drilling equipment for molds described above: One end of the swing arm is horizontally fixedly connected to the bottom of the rotating rod, and the rotating shaft is vertically rotatably mounted at the other end of the swing arm; The bottom of the lifting plate is provided with an annular groove coaxial with the rotating rod, and a disc is slidably disposed in the annular groove. The top of the rotating shaft is coaxially connected to the disc.

[0012] The high-precision drilling equipment for molds described above: The bottom of the lifting plate is equipped with a gear ring coaxial with the rotating rod, and a gear is coaxially arranged on the outer wall of the rotating shaft, the gear meshing with the gear ring.

[0013] The high-precision drilling equipment for molds described above: The boring mechanism also includes a transmission rod and a collar. The transmission rod is vertically rotatably mounted on the machine tool, and the collar is slidably sleeved on the outer wall of the transmission rod and connected to the lifting plate. The outer wall of the transmission rod is provided with an annular track groove along its length, and the inner wall of the collar is fitted with steel balls that also roll and fit within the annular track groove.

[0014] The high-precision drilling equipment for molds described above: A small pulley is coaxially mounted on the output shaft of the motor, and a large pulley is coaxially mounted on the transmission rod. The small pulley and the large pulley are connected by a toothed belt.

[0015] A processing method applicable to high-precision drilling equipment for molds as described above, characterized by comprising the following steps: Step 1: Place the mold to be processed on the slide block, turn the throttle to drive the double-acting screw to rotate, so that the two clamps move towards each other along the length of the slide block until the mold is clamped, thus completing the mold fixing; Step 2: Rotate the handwheel to drive the threaded rod to rotate, so that the slide block drives the fixture and mold to slide horizontally along the machine tool, and adjust the mold to be machined hole position directly below the boring tool to complete the positioning of the machining position; Step 3: Start the motor. The motor output shaft simultaneously drives the sleeve and transmission rod to rotate. The sleeve drives the rotating rod to rotate through the engagement of the convex post and the groove, causing the swing arm to drive the rotating shaft to revolve around the motor output shaft. At the same time, the rotating shaft achieves its own rotation through the meshing of the gear and the gear ring. The transmission rod drives the collar and the lifting plate to perform periodic reciprocating lifting through the cooperation of the annular track groove and the steel ball. This causes the rotating shaft to perform vertical reciprocating movement while rotating and revolving. The boring tool follows the rotating shaft to complete the compound motion and perform boring processing on the mold. Step 4: Repeat steps 2 and 3 to process each hole of the mold in sequence. After processing, turn the handle in the opposite direction to move the clamp in the opposite direction, release the mold and take it out.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The boring mechanism enables the shaft to simultaneously achieve a composite motion of rotation, revolution, and vertical reciprocating movement, forming a multi-degree-of-freedom cutting trajectory for the boring tool. This motion mode can reduce the cutting force of a single cut and reduce the accumulation of frictional heat between the tool and the workpiece, thereby suppressing thermal deformation during the machining process to a certain extent. Because thermal deformation is controlled to a certain extent, the dimensional stability of the mold during the processing is improved, which allows the boring tool to operate continuously in a more stable cutting state. This not only extends the service life of the tool, but also reduces the frequent tool changing operations caused by tool wear, and improves the continuous operation capability of the equipment. The extended tool life and improved continuous operation capability, combined with the flexible horizontal movement of the clamping mechanism, enable the equipment to complete the continuous processing of multiple holes in the mold in a single clamping, avoiding the accumulation of positioning errors caused by multiple clampings, and ultimately achieving a simultaneous improvement in the machining accuracy of the mold hole system and the overall machining efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-precision drilling equipment for molds.

[0018] Figure 2 This is a schematic diagram of the overall structure of a high-precision drilling equipment for molds from another perspective.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a sectional view of the sleeve, lifting plate, bearing seat, and gear ring in a high-precision die-drilling equipment for molds.

[0021] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0022] Figure 6 This is a schematic diagram showing the disassembly of the sleeve and rotating rod in a high-precision die-drilling machine.

[0023] Figure 7 This is another schematic diagram of the overall structure of a high-precision drilling equipment for molds.

[0024] Figure 8 This is a sectional view of the lifting plate and collar in a high-precision drilling equipment for molds.

[0025] Figure 9 for Figure 8 Enlarged view of point C in the middle.

[0026] Figure 10 This is a schematic diagram showing the disassembled transmission rod and collar in a high-precision die-drilling equipment.

[0027] In the diagram: 1. Machine tool; 2. Shaft; 3. Boring tool; 4. Motor; 5. Slide; 6. Threaded rod; 7. Handwheel; 8. Fixture; 9. Double-acting lead screw; 10. Turning handle; 11. Sleeve; 1101. Groove; 12. Rotating rod; 1201. Protruding post; 13. Lifting plate; 1301. Annular groove; 14. Guide frame; 15. Bearing seat; 16. Swing rod; 17. Disc; 18. Gear ring; 19. Gear; 20. Transmission rod; 2001. Annular track groove; 21. Collar; 22. Steel ball; 23. Small pulley; 24. Large pulley; 25. Toothed belt. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Please see Figure 1-10 As an embodiment of the present invention, a high-precision drilling processing equipment for molds includes a machine tool 1, a rotating shaft 2 and a boring bar 3. The machine tool 1 is provided with a clamping mechanism, which is used to fix the mold and can drive the mold to move in the horizontal direction as needed. It also includes a motor 4 and a boring mechanism. The motor 4 is vertically mounted on the top of the machine tool 1. The boring mechanism is disposed on the machine tool 1 and located between the motor 4 and the clamping mechanism. The boring mechanism is connected to the output shaft of the motor 4 and the rotating shaft 2 respectively. The boring tool 3 is detachably mounted on the bottom of the rotating shaft 2. When the motor 4 is started, the boring mechanism will start to operate under the drive of the motor 4. The boring mechanism enables the rotating shaft 2 to rotate on its own axis and revolve around the output shaft of the motor 4 while moving back and forth in the vertical direction. The boring tool 3 will follow the rotating shaft 2 to perform compound motion, thereby performing boring operation on the mold on the clamping mechanism.

[0030] In this embodiment, the motor 4 is vertically mounted on the top of the machine tool 1, and its output axis extends downward and forms a transmission connection with the boring mechanism. The boring mechanism is arranged in the space between the motor 4 and the clamping mechanism. The boring mechanism also establishes a transmission relationship with the rotating shaft 2. A detachable boring tool 3 is installed at the bottom of the rotating shaft 2. When motor 4 starts, the power is transmitted to the boring mechanism via the output shaft. The boring mechanism converts the single rotary input into a compound motion output, driving the rotating shaft 2 to rotate around its own axis while also revolving around the output shaft of motor 4 in a circular direction, and coordinating with the reciprocating linear movement in the vertical direction. Under the superposition of the three motion forms, the rotating shaft 2 forms a spatial compound trajectory. The boring tool 3 installed at its bottom follows this trajectory to perform cutting processing on the mold. The horizontal movement of the clamping mechanism cooperates with the compound motion of the rotating shaft 2, enabling the boring tool 3 to reach different processing positions of the mold and complete the boring operation of multiple holes.

[0031] As a further embodiment of the present invention, the clamping mechanism includes a slide block 5 and a threaded rod 6, wherein the slide block 5 is horizontally slidably disposed on the machine tool 1, and the threaded rod 6 is horizontally rotatably disposed on the machine tool 1; The threaded rod 6 and the slide block 5 are threaded together, and a handwheel 7 is coaxially provided at one end of the threaded rod 6; Two clamps 8 are slidably arranged on the slide block 5 along its length direction. The two clamps 8 are symmetrically arranged. A bidirectional lead screw 9 is horizontally rotatably arranged on the slide block 5. The bidirectional lead screw 9 is threadedly engaged with the two clamps 8 respectively, and a throttle 10 is coaxially provided at one end of the bidirectional lead screw 9.

[0032] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 7 The handwheel 7 is coaxially connected to the threaded rod 6. When the handwheel 7 is turned, the threaded rod 6 rotates horizontally on the machine tool 1. Since the threaded rod 6 is threadedly engaged with the slide 5, the rotational motion of the threaded rod 6 is converted into the linear motion of the slide 5, so that the slide 5 slides horizontally along the machine tool 1, thereby realizing the lateral adjustment of the mold processing position. The bidirectional lead screw 9 is horizontally rotatably mounted on the slide block 5. The handle 10 is coaxially connected to the bidirectional lead screw 9. Rotating the handle 10 drives the bidirectional lead screw 9 to rotate. The bidirectional lead screw 9 is threadedly engaged with two clamps 8 respectively. The two clamps 8 are symmetrically arranged in the length direction of the slide block 5. The positive and negative thread structure of the bidirectional lead screw 9 allows the two clamps 8 to move towards or away from each other in the length direction on the slide block 5, thereby realizing the clamping or loosening operation of the mold. The slide block 5 drives the fixture 8 and the mold to move as a whole. This action is independent of the action of the bidirectional lead screw 9 driving the fixture 8 to clamp the mold. First, the bidirectional lead screw 9 is operated by the throttle 10 to make the fixture 8 clamp the mold. Then, the threaded rod 6 is operated by the handwheel 7 to make the slide block 5 drive the mold to the processing position. The two work together to complete the positioning and fixing of the mold.

[0033] As a further embodiment of the present invention, the boring mechanism includes a sleeve 11, a rotating rod 12, a lifting plate 13, and a swing rod 16, wherein the top of the sleeve 11 is coaxially arranged with the output shaft of the motor 4; The machine tool 1 is provided with a guide frame 14, and the lifting plate 13 is vertically slidably disposed on the guide frame 14; The guide frame 14 is provided with a bearing seat 15, the rotating rod 12 is rotatably mounted on the bearing seat 15, and the top of the rotating rod 12 is inserted into the sleeve 11 and slides with each other. The outer wall of the rotating rod 12 is provided with a protrusion 1201 along its length direction, and the inner wall of the sleeve 11 is provided with a groove 1101 along its length direction. The protrusion 1201 is slidably fitted into the groove 1101. One end of the swing arm 16 is horizontally fixedly connected to the bottom of the rotating rod 12, and the rotating shaft 2 is vertically rotatably disposed at the other end of the swing arm 16; The bottom of the lifting plate 13 is provided with an annular groove 1301 coaxial with the rotating rod 12. A disc 17 is slidably disposed in the annular groove 1301. The top of the rotating shaft 2 is coaxially connected with the disc 17. The bottom of the lifting plate 13 is equipped with a gear ring 18 coaxial with the rotating rod 12, and a gear 19 is coaxially arranged on the outer wall of the rotating shaft 2, and the gear 19 meshes with the gear ring 18.

[0034] In this embodiment, please refer to Figure 3 , Figure 5 and Figure 6 After the motor 4 starts, the output shaft drives the sleeve 11 to rotate synchronously. Since the groove 1101 on the inner wall of the sleeve 11 slides and engages with the protrusion 1201 on the outer wall of the rotating rod 12, the rotational motion of the sleeve 11 is transmitted to the rotating rod 12, causing the rotating rod 12 to rotate in the bearing seat 15. The bottom of the rotating rod 12 is horizontally fixedly connected to the swing rod 16. The swing rod 16 revolves around the axis of the sleeve 11 with the rotating rod 12. The rotating shaft 2 is vertically rotated at the end of the swing rod 16 away from the rotating rod 12. The disc 17 at the top of the rotating shaft 2 slides and engages in the annular groove 1301 at the bottom of the lifting plate 13. The revolution of the swing rod 16 drives the rotating shaft 2 to perform circular motion around the axis of the sleeve 11 through the cooperation of the disc 17 and the annular groove 1301. The gear 19 on the outer wall of the rotating shaft 2 meshes with the gear ring 18 at the bottom of the lifting plate 13. The gear ring 18 and the rotating rod 12 are coaxial. When the rotating shaft 2 revolves with the swing rod 16, the gear 19 rolls on the stationary gear ring 18, generating a rotational motion around the axis of the rotating shaft 2. The lifting plate 13 slides vertically along the guide frame 14. The annular groove 1301 at its bottom drives the rotating shaft 2 to rise and fall as a whole through the disc 17, so that the rotating shaft 2 performs vertical reciprocating movement while rotating and revolving. The boring tool 3 at the bottom of the rotating shaft 2 follows the rotating shaft 2 to complete the composite motion of rotation, revolution and rising and falling, and performs boring processing on the mold. The sliding fit structure between the sleeve 11 and the rotating rod 12 allows the rotating rod 12 to move axially relative to the sleeve 11 while transmitting torque, adapting to the up and down movement of the lifting plate 13. The sliding connection of the disc 17 in the annular groove 1301 transmits the revolution motion and allows the rotating shaft 2 to rotate and move up and down relative to the lifting plate 13. The meshing of the gear 19 and the gear ring 18 converts the revolution motion into the rotation motion. The synergistic effect of the three enables the single motor 4 to drive the rotating shaft 2 to achieve a three-degree-of-freedom composite motion output.

[0035] As a further embodiment of the present invention, the boring mechanism further includes a transmission rod 20 and a collar 21. The transmission rod 20 is vertically rotatably mounted on the machine tool 1, and the collar 21 is slidably mounted on the outer wall of the transmission rod 20 and connected to the lifting plate 13. The outer wall of the transmission rod 20 is provided with an annular track groove 2001 along its length direction, and the inner wall of the collar 21 is fitted with a steel ball 22, which is also fitted with the annular track groove 2001. A small pulley 23 is coaxially mounted on the output shaft of the motor 4, and a large pulley 24 is coaxially mounted on the transmission rod 20. The small pulley 23 and the large pulley 24 are connected by a toothed belt 25.

[0036] In this embodiment, please refer to Figure 9 and Figure 10 The output shaft of motor 4 drives the small pulley 23 to rotate. The small pulley 23 transmits power to the large pulley 24 through the toothed belt 25, causing the transmission rod 20 to rotate vertically on the machine tool 1. The annular track groove 2001 on the outer wall of the transmission rod 20 is set along its length. The steel ball 22 on the inner wall of the collar 21 rolls and fits into the annular track groove 2001. The rotational motion of the transmission rod 20 is transmitted to the collar 21 through the cooperation of the steel ball 22 and the annular track groove 2001. As the steel ball 22 rolls in the annular track groove 2001, the collar 21 slides up and down along the outer wall of the transmission rod 20 while rotating with the transmission rod 20. The collar 21 is connected to the lifting plate 13. The up and down sliding of the collar 21 drives the lifting plate 13 to move vertically along the guide frame 14, and then drives the rotating shaft 2 to move up and down through the cooperation of the annular groove 1301 and the disc 17. The spiral shape of the annular track groove 2001 transforms the continuous rotation of the transmission rod 20 into the periodic reciprocating movement of the collar 21, thereby enabling the lifting plate 13 to drive the rotating shaft 2 to achieve automatic up-and-down reciprocating motion. The belt drive structure of the small pulley 23 and the large pulley 24 achieves speed reduction and torque increase, allowing the transmission rod 20 to operate stably at a speed lower than that of the output shaft of the motor 4, ensuring the smoothness of the lifting motion. The transmission rod 20, the collar 21, and the lifting plate 13 form an independent lifting drive branch, which works in parallel with the rotational motion branch driven by the sleeve 11 and the rotating rod 12. The two coordinate with each other under the same power source of the motor 4 to jointly achieve the composite motion output of the rotating shaft 2.

[0037] A processing method applicable to high-precision drilling equipment for molds as described above, characterized by comprising the following steps: Step 1: Place the mold to be processed on the slide block, turn the throttle to drive the double-acting screw to rotate, so that the two clamps move towards each other along the length of the slide block until the mold is clamped, thus completing the mold fixing; Step 2: Rotate the handwheel to drive the threaded rod to rotate, so that the slide block drives the fixture and mold to slide horizontally along the machine tool, and adjust the mold to be machined hole position directly below the boring tool to complete the positioning of the machining position; Step 3: Start the motor. The motor output shaft simultaneously drives the sleeve and transmission rod to rotate. The sleeve drives the rotating rod to rotate through the engagement of the convex post and the groove, causing the swing arm to drive the rotating shaft to revolve around the motor output shaft. At the same time, the rotating shaft achieves its own rotation through the meshing of the gear and the gear ring. The transmission rod drives the collar and the lifting plate to perform periodic reciprocating lifting through the cooperation of the annular track groove and the steel ball. This causes the rotating shaft to perform vertical reciprocating movement while rotating and revolving. The boring tool follows the rotating shaft to complete the compound motion and perform boring processing on the mold. Step 4: Repeat steps 2 and 3 to process each hole of the mold in sequence. After processing, turn the handle in the opposite direction to move the clamp in the opposite direction, release the mold and take it out.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-precision drilling processing equipment for molds, comprising a machine tool (1), a rotating shaft (2), and a boring bar (3), characterized in that, The machine tool (1) is provided with a clamping mechanism, which is used to fix the mold and can drive the mold to move in the horizontal direction as needed; It also includes a motor (4) and a boring mechanism. The motor (4) is vertically mounted on the top of the machine tool (1). The boring mechanism is set on the machine tool (1) and located between the motor (4) and the clamping mechanism. The boring mechanism is connected to the output shaft of the motor (4) and the rotating shaft (2) respectively. The boring tool (3) is detachably mounted on the bottom of the rotating shaft (2). When the motor (4) is started, the boring mechanism will start to run under the drive of the motor (4). The boring mechanism enables the rotating shaft (2) to rotate on its own axis and revolve around the output shaft of the motor (4) while moving back and forth in the vertical direction. The boring tool (3) will follow the rotating shaft (2) to perform compound motion, thereby performing boring operation on the mold on the clamping mechanism.

2. The high-precision drilling equipment for molds according to claim 1, characterized in that, The clamping mechanism includes a slide (5) and a threaded rod (6). The slide (5) is horizontally slidably disposed on the machine tool (1), and the threaded rod (6) is horizontally rotatably disposed on the machine tool (1). The threaded rod (6) and the slide (5) are threaded together, and a handwheel (7) is coaxially provided at one end of the threaded rod (6).

3. The high-precision drilling equipment for molds according to claim 2, characterized in that, Two clamps (8) are slidably arranged on the slide (5) along its length direction. The two clamps (8) are symmetrically arranged. A two-way lead screw (9) is horizontally rotatably arranged on the slide (5). The bidirectional lead screw (9) is threadedly engaged with the two clamps (8) respectively, and a throttle (10) is coaxially provided at one end of the bidirectional lead screw (9).

4. The high-precision drilling equipment for molds according to claim 1, characterized in that, The boring mechanism includes a sleeve (11), a rotating rod (12), a lifting plate (13), and a swing rod (16). The top of the sleeve (11) is coaxially arranged with the output shaft of the motor (4). The machine tool (1) is provided with a guide frame (14), and the lifting plate (13) is vertically slidably disposed on the guide frame (14).

5. The high-precision drilling equipment for molds according to claim 4, characterized in that, The guide frame (14) is provided with a bearing seat (15), and the rotating rod (12) is rotatably mounted on the bearing seat (15). The top of the rotating rod (12) is inserted into the sleeve (11) and slides in cooperation with each other. The outer wall of the rotating rod (12) is provided with a protrusion (1201) along its length direction, and the inner wall of the sleeve (11) is provided with a groove (1101) along its length direction. The protrusion (1201) is slidably fitted into the groove (1101).

6. The high-precision drilling equipment for molds according to claim 4, characterized in that, One end of the swing arm (16) is horizontally fixedly connected to the bottom of the rotating rod (12), and the rotating shaft (2) is vertically rotatably disposed at the other end of the swing arm (16); The bottom of the lifting plate (13) is provided with an annular groove (1301) coaxial with the rotating rod (12), and a disc (17) is slidably arranged in the annular groove (1301). The top of the rotating shaft (2) is coaxially connected with the disc (17).

7. The high-precision drilling equipment for molds according to claim 4, characterized in that, The bottom of the lifting plate (13) is equipped with a gear ring (18) coaxial with the rotating rod (12), and a gear (19) is coaxially arranged on the outer wall of the rotating shaft (2), and the gear (19) meshes with the gear ring (18).

8. The high-precision drilling equipment for molds according to claim 4, characterized in that, The boring mechanism also includes a transmission rod (20) and a collar (21). The transmission rod (20) is vertically rotatably mounted on the machine tool (1), and the collar (21) is slidably mounted on the outer wall of the transmission rod (20) and connected to the lifting plate (13). The outer wall of the transmission rod (20) is provided with an annular track groove (2001) along its length direction, and the inner wall of the collar (21) is fitted with a steel ball (22), which is also fitted with the annular track groove (2001).

9. A high-precision drilling equipment for molds according to claim 8, characterized in that, A small pulley (23) is coaxially mounted on the output shaft of the motor (4), and a large pulley (24) is coaxially mounted on the transmission rod (20). The small pulley (23) and the large pulley (24) are connected by a toothed belt (25).

10. A processing method applicable to the high-precision drilling equipment for molds as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the mold to be processed on the slide block, turn the throttle to drive the double-acting screw to rotate, so that the two clamps move towards each other along the length of the slide block until the mold is clamped, thus completing the mold fixing; Step 2: Rotate the handwheel to drive the threaded rod to rotate, so that the slide block drives the fixture and mold to slide horizontally along the machine tool, and adjust the mold to be machined hole position directly below the boring tool to complete the positioning of the machining position; Step 3: Start the motor. The motor output shaft simultaneously drives the sleeve and transmission rod to rotate. The sleeve drives the rotating rod to rotate through the engagement of the convex post and the groove, causing the swing arm to drive the rotating shaft to revolve around the motor output shaft. At the same time, the rotating shaft achieves its own rotation through the meshing of the gear and the gear ring. The transmission rod drives the collar and the lifting plate to perform periodic reciprocating lifting through the cooperation of the annular track groove and the steel ball. This causes the rotating shaft to perform vertical reciprocating movement while rotating and revolving. The boring tool follows the rotating shaft to complete the compound motion and perform boring processing on the mold. Step 4: Repeat steps 2 and 3 to process each hole of the mold in sequence. After processing, turn the handle in the opposite direction to move the clamp in the opposite direction, release the mold and take it out.

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